1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.widget; 18 19 import android.R; 20 import android.content.ClipData; 21 import android.content.ClipData.Item; 22 import android.content.ClipboardManager; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.content.pm.PackageManager; 26 import android.content.res.ColorStateList; 27 import android.content.res.CompatibilityInfo; 28 import android.content.res.Resources; 29 import android.content.res.TypedArray; 30 import android.content.res.XmlResourceParser; 31 import android.graphics.Canvas; 32 import android.graphics.Color; 33 import android.graphics.Paint; 34 import android.graphics.Path; 35 import android.graphics.Rect; 36 import android.graphics.RectF; 37 import android.graphics.Typeface; 38 import android.graphics.drawable.Drawable; 39 import android.inputmethodservice.ExtractEditText; 40 import android.os.Bundle; 41 import android.os.Handler; 42 import android.os.Message; 43 import android.os.Parcel; 44 import android.os.Parcelable; 45 import android.os.SystemClock; 46 import android.provider.Settings; 47 import android.text.BoringLayout; 48 import android.text.DynamicLayout; 49 import android.text.Editable; 50 import android.text.GetChars; 51 import android.text.GraphicsOperations; 52 import android.text.InputFilter; 53 import android.text.InputType; 54 import android.text.Layout; 55 import android.text.ParcelableSpan; 56 import android.text.Selection; 57 import android.text.SpanWatcher; 58 import android.text.Spannable; 59 import android.text.SpannableString; 60 import android.text.SpannableStringBuilder; 61 import android.text.Spanned; 62 import android.text.SpannedString; 63 import android.text.StaticLayout; 64 import android.text.TextDirectionHeuristic; 65 import android.text.TextDirectionHeuristics; 66 import android.text.TextPaint; 67 import android.text.TextUtils; 68 import android.text.TextUtils.TruncateAt; 69 import android.text.TextWatcher; 70 import android.text.method.AllCapsTransformationMethod; 71 import android.text.method.ArrowKeyMovementMethod; 72 import android.text.method.DateKeyListener; 73 import android.text.method.DateTimeKeyListener; 74 import android.text.method.DialerKeyListener; 75 import android.text.method.DigitsKeyListener; 76 import android.text.method.KeyListener; 77 import android.text.method.LinkMovementMethod; 78 import android.text.method.MetaKeyKeyListener; 79 import android.text.method.MovementMethod; 80 import android.text.method.PasswordTransformationMethod; 81 import android.text.method.SingleLineTransformationMethod; 82 import android.text.method.TextKeyListener; 83 import android.text.method.TimeKeyListener; 84 import android.text.method.TransformationMethod; 85 import android.text.method.TransformationMethod2; 86 import android.text.method.WordIterator; 87 import android.text.style.ClickableSpan; 88 import android.text.style.EasyEditSpan; 89 import android.text.style.ParagraphStyle; 90 import android.text.style.SpellCheckSpan; 91 import android.text.style.SuggestionRangeSpan; 92 import android.text.style.SuggestionSpan; 93 import android.text.style.TextAppearanceSpan; 94 import android.text.style.URLSpan; 95 import android.text.style.UpdateAppearance; 96 import android.text.util.Linkify; 97 import android.util.AttributeSet; 98 import android.util.DisplayMetrics; 99 import android.util.FloatMath; 100 import android.util.Log; 101 import android.util.TypedValue; 102 import android.view.ActionMode; 103 import android.view.ActionMode.Callback; 104 import android.view.DragEvent; 105 import android.view.Gravity; 106 import android.view.HapticFeedbackConstants; 107 import android.view.KeyCharacterMap; 108 import android.view.KeyEvent; 109 import android.view.LayoutInflater; 110 import android.view.Menu; 111 import android.view.MenuItem; 112 import android.view.MotionEvent; 113 import android.view.View; 114 import android.view.ViewConfiguration; 115 import android.view.ViewDebug; 116 import android.view.ViewGroup; 117 import android.view.ViewGroup.LayoutParams; 118 import android.view.ViewParent; 119 import android.view.ViewRootImpl; 120 import android.view.ViewTreeObserver; 121 import android.view.WindowManager; 122 import android.view.accessibility.AccessibilityEvent; 123 import android.view.accessibility.AccessibilityManager; 124 import android.view.accessibility.AccessibilityNodeInfo; 125 import android.view.animation.AnimationUtils; 126 import android.view.inputmethod.BaseInputConnection; 127 import android.view.inputmethod.CompletionInfo; 128 import android.view.inputmethod.CorrectionInfo; 129 import android.view.inputmethod.EditorInfo; 130 import android.view.inputmethod.ExtractedText; 131 import android.view.inputmethod.ExtractedTextRequest; 132 import android.view.inputmethod.InputConnection; 133 import android.view.inputmethod.InputMethodManager; 134 import android.view.textservice.SpellCheckerSubtype; 135 import android.view.textservice.TextServicesManager; 136 import android.widget.AdapterView.OnItemClickListener; 137 import android.widget.RemoteViews.RemoteView; 138 139 import com.android.internal.util.FastMath; 140 import com.android.internal.widget.EditableInputConnection; 141 142 import org.xmlpull.v1.XmlPullParserException; 143 144 import java.io.IOException; 145 import java.lang.ref.WeakReference; 146 import java.text.BreakIterator; 147 import java.util.ArrayList; 148 import java.util.Arrays; 149 import java.util.Comparator; 150 import java.util.HashMap; 151 import java.util.Locale; 152 153 /** 154 * Displays text to the user and optionally allows them to edit it. A TextView 155 * is a complete text editor, however the basic class is configured to not 156 * allow editing; see {@link EditText} for a subclass that configures the text 157 * view for editing. 158 * 159 * <p> 160 * <b>XML attributes</b> 161 * <p> 162 * See {@link android.R.styleable#TextView TextView Attributes}, 163 * {@link android.R.styleable#View View Attributes} 164 * 165 * @attr ref android.R.styleable#TextView_text 166 * @attr ref android.R.styleable#TextView_bufferType 167 * @attr ref android.R.styleable#TextView_hint 168 * @attr ref android.R.styleable#TextView_textColor 169 * @attr ref android.R.styleable#TextView_textColorHighlight 170 * @attr ref android.R.styleable#TextView_textColorHint 171 * @attr ref android.R.styleable#TextView_textAppearance 172 * @attr ref android.R.styleable#TextView_textColorLink 173 * @attr ref android.R.styleable#TextView_textSize 174 * @attr ref android.R.styleable#TextView_textScaleX 175 * @attr ref android.R.styleable#TextView_typeface 176 * @attr ref android.R.styleable#TextView_textStyle 177 * @attr ref android.R.styleable#TextView_cursorVisible 178 * @attr ref android.R.styleable#TextView_maxLines 179 * @attr ref android.R.styleable#TextView_maxHeight 180 * @attr ref android.R.styleable#TextView_lines 181 * @attr ref android.R.styleable#TextView_height 182 * @attr ref android.R.styleable#TextView_minLines 183 * @attr ref android.R.styleable#TextView_minHeight 184 * @attr ref android.R.styleable#TextView_maxEms 185 * @attr ref android.R.styleable#TextView_maxWidth 186 * @attr ref android.R.styleable#TextView_ems 187 * @attr ref android.R.styleable#TextView_width 188 * @attr ref android.R.styleable#TextView_minEms 189 * @attr ref android.R.styleable#TextView_minWidth 190 * @attr ref android.R.styleable#TextView_gravity 191 * @attr ref android.R.styleable#TextView_scrollHorizontally 192 * @attr ref android.R.styleable#TextView_password 193 * @attr ref android.R.styleable#TextView_singleLine 194 * @attr ref android.R.styleable#TextView_selectAllOnFocus 195 * @attr ref android.R.styleable#TextView_includeFontPadding 196 * @attr ref android.R.styleable#TextView_maxLength 197 * @attr ref android.R.styleable#TextView_shadowColor 198 * @attr ref android.R.styleable#TextView_shadowDx 199 * @attr ref android.R.styleable#TextView_shadowDy 200 * @attr ref android.R.styleable#TextView_shadowRadius 201 * @attr ref android.R.styleable#TextView_autoLink 202 * @attr ref android.R.styleable#TextView_linksClickable 203 * @attr ref android.R.styleable#TextView_numeric 204 * @attr ref android.R.styleable#TextView_digits 205 * @attr ref android.R.styleable#TextView_phoneNumber 206 * @attr ref android.R.styleable#TextView_inputMethod 207 * @attr ref android.R.styleable#TextView_capitalize 208 * @attr ref android.R.styleable#TextView_autoText 209 * @attr ref android.R.styleable#TextView_editable 210 * @attr ref android.R.styleable#TextView_freezesText 211 * @attr ref android.R.styleable#TextView_ellipsize 212 * @attr ref android.R.styleable#TextView_drawableTop 213 * @attr ref android.R.styleable#TextView_drawableBottom 214 * @attr ref android.R.styleable#TextView_drawableRight 215 * @attr ref android.R.styleable#TextView_drawableLeft 216 * @attr ref android.R.styleable#TextView_drawablePadding 217 * @attr ref android.R.styleable#TextView_lineSpacingExtra 218 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 219 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 220 * @attr ref android.R.styleable#TextView_inputType 221 * @attr ref android.R.styleable#TextView_imeOptions 222 * @attr ref android.R.styleable#TextView_privateImeOptions 223 * @attr ref android.R.styleable#TextView_imeActionLabel 224 * @attr ref android.R.styleable#TextView_imeActionId 225 * @attr ref android.R.styleable#TextView_editorExtras 226 */ 227 @RemoteView 228 public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 229 static final String LOG_TAG = "TextView"; 230 static final boolean DEBUG_EXTRACT = false; 231 232 private static final int PRIORITY = 100; 233 private int mCurrentAlpha = 255; 234 235 final int[] mTempCoords = new int[2]; 236 Rect mTempRect; 237 238 private ColorStateList mTextColor; 239 private int mCurTextColor; 240 private ColorStateList mHintTextColor; 241 private ColorStateList mLinkTextColor; 242 private int mCurHintTextColor; 243 private boolean mFreezesText; 244 private boolean mFrozenWithFocus; 245 private boolean mTemporaryDetach; 246 private boolean mDispatchTemporaryDetach; 247 248 private boolean mDiscardNextActionUp = false; 249 private boolean mIgnoreActionUpEvent = false; 250 251 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 252 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 253 254 private float mShadowRadius, mShadowDx, mShadowDy; 255 256 private static final int PREDRAW_NOT_REGISTERED = 0; 257 private static final int PREDRAW_PENDING = 1; 258 private static final int PREDRAW_DONE = 2; 259 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 260 261 private TextUtils.TruncateAt mEllipsize = null; 262 263 // Enum for the "typeface" XML parameter. 264 // TODO: How can we get this from the XML instead of hardcoding it here? 265 private static final int SANS = 1; 266 private static final int SERIF = 2; 267 private static final int MONOSPACE = 3; 268 269 // Bitfield for the "numeric" XML parameter. 270 // TODO: How can we get this from the XML instead of hardcoding it here? 271 private static final int SIGNED = 2; 272 private static final int DECIMAL = 4; 273 274 static class Drawables { 275 final Rect mCompoundRect = new Rect(); 276 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 277 mDrawableStart, mDrawableEnd; 278 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 279 mDrawableSizeStart, mDrawableSizeEnd; 280 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 281 mDrawableHeightStart, mDrawableHeightEnd; 282 int mDrawablePadding; 283 } 284 private Drawables mDrawables; 285 286 private CharSequence mError; 287 private boolean mErrorWasChanged; 288 private ErrorPopup mPopup; 289 /** 290 * This flag is set if the TextView tries to display an error before it 291 * is attached to the window (so its position is still unknown). 292 * It causes the error to be shown later, when onAttachedToWindow() 293 * is called. 294 */ 295 private boolean mShowErrorAfterAttach; 296 297 private CharWrapper mCharWrapper = null; 298 299 private boolean mSelectionMoved = false; 300 private boolean mTouchFocusSelected = false; 301 302 private Marquee mMarquee; 303 private boolean mRestartMarquee; 304 305 private int mMarqueeRepeatLimit = 3; 306 307 static class InputContentType { 308 int imeOptions = EditorInfo.IME_NULL; 309 String privateImeOptions; 310 CharSequence imeActionLabel; 311 int imeActionId; 312 Bundle extras; 313 OnEditorActionListener onEditorActionListener; 314 boolean enterDown; 315 } 316 InputContentType mInputContentType; 317 318 static class InputMethodState { 319 Rect mCursorRectInWindow = new Rect(); 320 RectF mTmpRectF = new RectF(); 321 float[] mTmpOffset = new float[2]; 322 ExtractedTextRequest mExtracting; 323 final ExtractedText mTmpExtracted = new ExtractedText(); 324 int mBatchEditNesting; 325 boolean mCursorChanged; 326 boolean mSelectionModeChanged; 327 boolean mContentChanged; 328 int mChangedStart, mChangedEnd, mChangedDelta; 329 } 330 InputMethodState mInputMethodState; 331 332 private int mTextSelectHandleLeftRes; 333 private int mTextSelectHandleRightRes; 334 private int mTextSelectHandleRes; 335 336 private int mTextEditSuggestionItemLayout; 337 private SuggestionsPopupWindow mSuggestionsPopupWindow; 338 private SuggestionRangeSpan mSuggestionRangeSpan; 339 340 private int mCursorDrawableRes; 341 private final Drawable[] mCursorDrawable = new Drawable[2]; 342 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 (split) 343 344 private Drawable mSelectHandleLeft; 345 private Drawable mSelectHandleRight; 346 private Drawable mSelectHandleCenter; 347 348 // Global listener that detects changes in the global position of the TextView 349 private PositionListener mPositionListener; 350 351 private float mLastDownPositionX, mLastDownPositionY; 352 private Callback mCustomSelectionActionModeCallback; 353 354 private final int mSquaredTouchSlopDistance; 355 // Set when this TextView gained focus with some text selected. Will start selection mode. 356 private boolean mCreatedWithASelection = false; 357 358 private WordIterator mWordIterator; 359 360 private SpellChecker mSpellChecker; 361 362 private boolean mSoftInputShownOnFocus = true; 363 364 // The alignment to pass to Layout, or null if not resolved. 365 private Layout.Alignment mLayoutAlignment; 366 367 // The default value for mTextAlign. 368 private TextAlign mTextAlign = TextAlign.INHERIT; 369 370 private static enum TextAlign { 371 INHERIT, GRAVITY, TEXT_START, TEXT_END, CENTER, VIEW_START, VIEW_END; 372 } 373 374 private boolean mResolvedDrawables = false; 375 376 /** 377 * On some devices the fading edges add a performance penalty if used 378 * extensively in the same layout. This mode indicates how the marquee 379 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 380 */ 381 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 382 383 /** 384 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 385 * the layout that should be used when the mode switches. 386 */ 387 private Layout mSavedMarqueeModeLayout; 388 389 /** 390 * Draw marquee text with fading edges as usual 391 */ 392 private static final int MARQUEE_FADE_NORMAL = 0; 393 394 /** 395 * Draw marquee text as ellipsize end while inactive instead of with the fade. 396 * (Useful for devices where the fade can be expensive if overdone) 397 */ 398 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 399 400 /** 401 * Draw marquee text with fading edges because it is currently active/animating. 402 */ 403 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 404 405 /* 406 * Kick-start the font cache for the zygote process (to pay the cost of 407 * initializing freetype for our default font only once). 408 */ 409 static { 410 Paint p = new Paint(); 411 p.setAntiAlias(true); 412 // We don't care about the result, just the side-effect of measuring. 413 p.measureText("H"); 414 } 415 416 /** 417 * Interface definition for a callback to be invoked when an action is 418 * performed on the editor. 419 */ 420 public interface OnEditorActionListener { 421 /** 422 * Called when an action is being performed. 423 * 424 * @param v The view that was clicked. 425 * @param actionId Identifier of the action. This will be either the 426 * identifier you supplied, or {@link EditorInfo#IME_NULL 427 * EditorInfo.IME_NULL} if being called due to the enter key 428 * being pressed. 429 * @param event If triggered by an enter key, this is the event; 430 * otherwise, this is null. 431 * @return Return true if you have consumed the action, else false. 432 */ 433 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 434 } 435 436 public TextView(Context context) { 437 this(context, null); 438 } 439 440 public TextView(Context context, 441 AttributeSet attrs) { 442 this(context, attrs, com.android.internal.R.attr.textViewStyle); 443 } 444 445 @SuppressWarnings("deprecation") 446 public TextView(Context context, 447 AttributeSet attrs, 448 int defStyle) { 449 super(context, attrs, defStyle); 450 mText = ""; 451 452 final Resources res = getResources(); 453 final CompatibilityInfo compat = res.getCompatibilityInfo(); 454 455 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 456 mTextPaint.density = res.getDisplayMetrics().density; 457 mTextPaint.setCompatibilityScaling(compat.applicationScale); 458 459 // If we get the paint from the skin, we should set it to left, since 460 // the layout always wants it to be left. 461 // mTextPaint.setTextAlign(Paint.Align.LEFT); 462 463 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 464 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 465 466 mMovement = getDefaultMovementMethod(); 467 mTransformation = null; 468 469 int textColorHighlight = 0; 470 ColorStateList textColor = null; 471 ColorStateList textColorHint = null; 472 ColorStateList textColorLink = null; 473 int textSize = 15; 474 int typefaceIndex = -1; 475 int styleIndex = -1; 476 boolean allCaps = false; 477 478 final Resources.Theme theme = context.getTheme(); 479 480 /* 481 * Look the appearance up without checking first if it exists because 482 * almost every TextView has one and it greatly simplifies the logic 483 * to be able to parse the appearance first and then let specific tags 484 * for this View override it. 485 */ 486 TypedArray a = theme.obtainStyledAttributes( 487 attrs, com.android.internal.R.styleable.TextViewAppearance, defStyle, 0); 488 TypedArray appearance = null; 489 int ap = a.getResourceId( 490 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 491 a.recycle(); 492 if (ap != -1) { 493 appearance = theme.obtainStyledAttributes( 494 ap, com.android.internal.R.styleable.TextAppearance); 495 } 496 if (appearance != null) { 497 int n = appearance.getIndexCount(); 498 for (int i = 0; i < n; i++) { 499 int attr = appearance.getIndex(i); 500 501 switch (attr) { 502 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 503 textColorHighlight = appearance.getColor(attr, textColorHighlight); 504 break; 505 506 case com.android.internal.R.styleable.TextAppearance_textColor: 507 textColor = appearance.getColorStateList(attr); 508 break; 509 510 case com.android.internal.R.styleable.TextAppearance_textColorHint: 511 textColorHint = appearance.getColorStateList(attr); 512 break; 513 514 case com.android.internal.R.styleable.TextAppearance_textColorLink: 515 textColorLink = appearance.getColorStateList(attr); 516 break; 517 518 case com.android.internal.R.styleable.TextAppearance_textSize: 519 textSize = appearance.getDimensionPixelSize(attr, textSize); 520 break; 521 522 case com.android.internal.R.styleable.TextAppearance_typeface: 523 typefaceIndex = appearance.getInt(attr, -1); 524 break; 525 526 case com.android.internal.R.styleable.TextAppearance_textStyle: 527 styleIndex = appearance.getInt(attr, -1); 528 break; 529 530 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 531 allCaps = appearance.getBoolean(attr, false); 532 break; 533 } 534 } 535 536 appearance.recycle(); 537 } 538 539 boolean editable = getDefaultEditable(); 540 CharSequence inputMethod = null; 541 int numeric = 0; 542 CharSequence digits = null; 543 boolean phone = false; 544 boolean autotext = false; 545 int autocap = -1; 546 int buffertype = 0; 547 boolean selectallonfocus = false; 548 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 549 drawableBottom = null, drawableStart = null, drawableEnd = null; 550 int drawablePadding = 0; 551 int ellipsize = -1; 552 boolean singleLine = false; 553 int maxlength = -1; 554 CharSequence text = ""; 555 CharSequence hint = null; 556 int shadowcolor = 0; 557 float dx = 0, dy = 0, r = 0; 558 boolean password = false; 559 int inputType = EditorInfo.TYPE_NULL; 560 561 a = theme.obtainStyledAttributes( 562 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 563 564 int n = a.getIndexCount(); 565 for (int i = 0; i < n; i++) { 566 int attr = a.getIndex(i); 567 568 switch (attr) { 569 case com.android.internal.R.styleable.TextView_editable: 570 editable = a.getBoolean(attr, editable); 571 break; 572 573 case com.android.internal.R.styleable.TextView_inputMethod: 574 inputMethod = a.getText(attr); 575 break; 576 577 case com.android.internal.R.styleable.TextView_numeric: 578 numeric = a.getInt(attr, numeric); 579 break; 580 581 case com.android.internal.R.styleable.TextView_digits: 582 digits = a.getText(attr); 583 break; 584 585 case com.android.internal.R.styleable.TextView_phoneNumber: 586 phone = a.getBoolean(attr, phone); 587 break; 588 589 case com.android.internal.R.styleable.TextView_autoText: 590 autotext = a.getBoolean(attr, autotext); 591 break; 592 593 case com.android.internal.R.styleable.TextView_capitalize: 594 autocap = a.getInt(attr, autocap); 595 break; 596 597 case com.android.internal.R.styleable.TextView_bufferType: 598 buffertype = a.getInt(attr, buffertype); 599 break; 600 601 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 602 selectallonfocus = a.getBoolean(attr, selectallonfocus); 603 break; 604 605 case com.android.internal.R.styleable.TextView_autoLink: 606 mAutoLinkMask = a.getInt(attr, 0); 607 break; 608 609 case com.android.internal.R.styleable.TextView_linksClickable: 610 mLinksClickable = a.getBoolean(attr, true); 611 break; 612 613 // TODO uncomment when this attribute is made public in the next release 614 // also add TextView_showSoftInputOnFocus to the list of attributes above 615 // case com.android.internal.R.styleable.TextView_showSoftInputOnFocus: 616 // setShowSoftInputOnFocus(a.getBoolean(attr, true)); 617 // break; 618 619 case com.android.internal.R.styleable.TextView_drawableLeft: 620 drawableLeft = a.getDrawable(attr); 621 break; 622 623 case com.android.internal.R.styleable.TextView_drawableTop: 624 drawableTop = a.getDrawable(attr); 625 break; 626 627 case com.android.internal.R.styleable.TextView_drawableRight: 628 drawableRight = a.getDrawable(attr); 629 break; 630 631 case com.android.internal.R.styleable.TextView_drawableBottom: 632 drawableBottom = a.getDrawable(attr); 633 break; 634 635 case com.android.internal.R.styleable.TextView_drawableStart: 636 drawableStart = a.getDrawable(attr); 637 break; 638 639 case com.android.internal.R.styleable.TextView_drawableEnd: 640 drawableEnd = a.getDrawable(attr); 641 break; 642 643 case com.android.internal.R.styleable.TextView_drawablePadding: 644 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 645 break; 646 647 case com.android.internal.R.styleable.TextView_maxLines: 648 setMaxLines(a.getInt(attr, -1)); 649 break; 650 651 case com.android.internal.R.styleable.TextView_maxHeight: 652 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 653 break; 654 655 case com.android.internal.R.styleable.TextView_lines: 656 setLines(a.getInt(attr, -1)); 657 break; 658 659 case com.android.internal.R.styleable.TextView_height: 660 setHeight(a.getDimensionPixelSize(attr, -1)); 661 break; 662 663 case com.android.internal.R.styleable.TextView_minLines: 664 setMinLines(a.getInt(attr, -1)); 665 break; 666 667 case com.android.internal.R.styleable.TextView_minHeight: 668 setMinHeight(a.getDimensionPixelSize(attr, -1)); 669 break; 670 671 case com.android.internal.R.styleable.TextView_maxEms: 672 setMaxEms(a.getInt(attr, -1)); 673 break; 674 675 case com.android.internal.R.styleable.TextView_maxWidth: 676 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 677 break; 678 679 case com.android.internal.R.styleable.TextView_ems: 680 setEms(a.getInt(attr, -1)); 681 break; 682 683 case com.android.internal.R.styleable.TextView_width: 684 setWidth(a.getDimensionPixelSize(attr, -1)); 685 break; 686 687 case com.android.internal.R.styleable.TextView_minEms: 688 setMinEms(a.getInt(attr, -1)); 689 break; 690 691 case com.android.internal.R.styleable.TextView_minWidth: 692 setMinWidth(a.getDimensionPixelSize(attr, -1)); 693 break; 694 695 case com.android.internal.R.styleable.TextView_gravity: 696 setGravity(a.getInt(attr, -1)); 697 break; 698 699 case com.android.internal.R.styleable.TextView_hint: 700 hint = a.getText(attr); 701 break; 702 703 case com.android.internal.R.styleable.TextView_text: 704 text = a.getText(attr); 705 break; 706 707 case com.android.internal.R.styleable.TextView_scrollHorizontally: 708 if (a.getBoolean(attr, false)) { 709 setHorizontallyScrolling(true); 710 } 711 break; 712 713 case com.android.internal.R.styleable.TextView_singleLine: 714 singleLine = a.getBoolean(attr, singleLine); 715 break; 716 717 case com.android.internal.R.styleable.TextView_ellipsize: 718 ellipsize = a.getInt(attr, ellipsize); 719 break; 720 721 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 722 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 723 break; 724 725 case com.android.internal.R.styleable.TextView_includeFontPadding: 726 if (!a.getBoolean(attr, true)) { 727 setIncludeFontPadding(false); 728 } 729 break; 730 731 case com.android.internal.R.styleable.TextView_cursorVisible: 732 if (!a.getBoolean(attr, true)) { 733 setCursorVisible(false); 734 } 735 break; 736 737 case com.android.internal.R.styleable.TextView_maxLength: 738 maxlength = a.getInt(attr, -1); 739 break; 740 741 case com.android.internal.R.styleable.TextView_textScaleX: 742 setTextScaleX(a.getFloat(attr, 1.0f)); 743 break; 744 745 case com.android.internal.R.styleable.TextView_freezesText: 746 mFreezesText = a.getBoolean(attr, false); 747 break; 748 749 case com.android.internal.R.styleable.TextView_shadowColor: 750 shadowcolor = a.getInt(attr, 0); 751 break; 752 753 case com.android.internal.R.styleable.TextView_shadowDx: 754 dx = a.getFloat(attr, 0); 755 break; 756 757 case com.android.internal.R.styleable.TextView_shadowDy: 758 dy = a.getFloat(attr, 0); 759 break; 760 761 case com.android.internal.R.styleable.TextView_shadowRadius: 762 r = a.getFloat(attr, 0); 763 break; 764 765 case com.android.internal.R.styleable.TextView_enabled: 766 setEnabled(a.getBoolean(attr, isEnabled())); 767 break; 768 769 case com.android.internal.R.styleable.TextView_textColorHighlight: 770 textColorHighlight = a.getColor(attr, textColorHighlight); 771 break; 772 773 case com.android.internal.R.styleable.TextView_textColor: 774 textColor = a.getColorStateList(attr); 775 break; 776 777 case com.android.internal.R.styleable.TextView_textColorHint: 778 textColorHint = a.getColorStateList(attr); 779 break; 780 781 case com.android.internal.R.styleable.TextView_textColorLink: 782 textColorLink = a.getColorStateList(attr); 783 break; 784 785 case com.android.internal.R.styleable.TextView_textSize: 786 textSize = a.getDimensionPixelSize(attr, textSize); 787 break; 788 789 case com.android.internal.R.styleable.TextView_typeface: 790 typefaceIndex = a.getInt(attr, typefaceIndex); 791 break; 792 793 case com.android.internal.R.styleable.TextView_textStyle: 794 styleIndex = a.getInt(attr, styleIndex); 795 break; 796 797 case com.android.internal.R.styleable.TextView_password: 798 password = a.getBoolean(attr, password); 799 break; 800 801 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 802 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 803 break; 804 805 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 806 mSpacingMult = a.getFloat(attr, mSpacingMult); 807 break; 808 809 case com.android.internal.R.styleable.TextView_inputType: 810 inputType = a.getInt(attr, mInputType); 811 break; 812 813 case com.android.internal.R.styleable.TextView_imeOptions: 814 if (mInputContentType == null) { 815 mInputContentType = new InputContentType(); 816 } 817 mInputContentType.imeOptions = a.getInt(attr, 818 mInputContentType.imeOptions); 819 break; 820 821 case com.android.internal.R.styleable.TextView_imeActionLabel: 822 if (mInputContentType == null) { 823 mInputContentType = new InputContentType(); 824 } 825 mInputContentType.imeActionLabel = a.getText(attr); 826 break; 827 828 case com.android.internal.R.styleable.TextView_imeActionId: 829 if (mInputContentType == null) { 830 mInputContentType = new InputContentType(); 831 } 832 mInputContentType.imeActionId = a.getInt(attr, 833 mInputContentType.imeActionId); 834 break; 835 836 case com.android.internal.R.styleable.TextView_privateImeOptions: 837 setPrivateImeOptions(a.getString(attr)); 838 break; 839 840 case com.android.internal.R.styleable.TextView_editorExtras: 841 try { 842 setInputExtras(a.getResourceId(attr, 0)); 843 } catch (XmlPullParserException e) { 844 Log.w(LOG_TAG, "Failure reading input extras", e); 845 } catch (IOException e) { 846 Log.w(LOG_TAG, "Failure reading input extras", e); 847 } 848 break; 849 850 case com.android.internal.R.styleable.TextView_textCursorDrawable: 851 mCursorDrawableRes = a.getResourceId(attr, 0); 852 break; 853 854 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 855 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 856 break; 857 858 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 859 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 860 break; 861 862 case com.android.internal.R.styleable.TextView_textSelectHandle: 863 mTextSelectHandleRes = a.getResourceId(attr, 0); 864 break; 865 866 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 867 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 868 break; 869 870 case com.android.internal.R.styleable.TextView_textIsSelectable: 871 mTextIsSelectable = a.getBoolean(attr, false); 872 break; 873 874 case com.android.internal.R.styleable.TextView_textAllCaps: 875 allCaps = a.getBoolean(attr, false); 876 break; 877 } 878 } 879 a.recycle(); 880 881 BufferType bufferType = BufferType.EDITABLE; 882 883 final int variation = 884 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 885 final boolean passwordInputType = variation 886 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 887 final boolean webPasswordInputType = variation 888 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 889 final boolean numberPasswordInputType = variation 890 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 891 892 if (inputMethod != null) { 893 Class<?> c; 894 895 try { 896 c = Class.forName(inputMethod.toString()); 897 } catch (ClassNotFoundException ex) { 898 throw new RuntimeException(ex); 899 } 900 901 try { 902 mInput = (KeyListener) c.newInstance(); 903 } catch (InstantiationException ex) { 904 throw new RuntimeException(ex); 905 } catch (IllegalAccessException ex) { 906 throw new RuntimeException(ex); 907 } 908 try { 909 mInputType = inputType != EditorInfo.TYPE_NULL 910 ? inputType 911 : mInput.getInputType(); 912 } catch (IncompatibleClassChangeError e) { 913 mInputType = EditorInfo.TYPE_CLASS_TEXT; 914 } 915 } else if (digits != null) { 916 mInput = DigitsKeyListener.getInstance(digits.toString()); 917 // If no input type was specified, we will default to generic 918 // text, since we can't tell the IME about the set of digits 919 // that was selected. 920 mInputType = inputType != EditorInfo.TYPE_NULL 921 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 922 } else if (inputType != EditorInfo.TYPE_NULL) { 923 setInputType(inputType, true); 924 // If set, the input type overrides what was set using the deprecated singleLine flag. 925 singleLine = !isMultilineInputType(inputType); 926 } else if (phone) { 927 mInput = DialerKeyListener.getInstance(); 928 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 929 } else if (numeric != 0) { 930 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 931 (numeric & DECIMAL) != 0); 932 inputType = EditorInfo.TYPE_CLASS_NUMBER; 933 if ((numeric & SIGNED) != 0) { 934 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 935 } 936 if ((numeric & DECIMAL) != 0) { 937 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 938 } 939 mInputType = inputType; 940 } else if (autotext || autocap != -1) { 941 TextKeyListener.Capitalize cap; 942 943 inputType = EditorInfo.TYPE_CLASS_TEXT; 944 945 switch (autocap) { 946 case 1: 947 cap = TextKeyListener.Capitalize.SENTENCES; 948 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 949 break; 950 951 case 2: 952 cap = TextKeyListener.Capitalize.WORDS; 953 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 954 break; 955 956 case 3: 957 cap = TextKeyListener.Capitalize.CHARACTERS; 958 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 959 break; 960 961 default: 962 cap = TextKeyListener.Capitalize.NONE; 963 break; 964 } 965 966 mInput = TextKeyListener.getInstance(autotext, cap); 967 mInputType = inputType; 968 } else if (mTextIsSelectable) { 969 // Prevent text changes from keyboard. 970 mInputType = EditorInfo.TYPE_NULL; 971 mInput = null; 972 bufferType = BufferType.SPANNABLE; 973 // Required to request focus while in touch mode. 974 setFocusableInTouchMode(true); 975 // So that selection can be changed using arrow keys and touch is handled. 976 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 977 } else if (editable) { 978 mInput = TextKeyListener.getInstance(); 979 mInputType = EditorInfo.TYPE_CLASS_TEXT; 980 } else { 981 mInput = null; 982 983 switch (buffertype) { 984 case 0: 985 bufferType = BufferType.NORMAL; 986 break; 987 case 1: 988 bufferType = BufferType.SPANNABLE; 989 break; 990 case 2: 991 bufferType = BufferType.EDITABLE; 992 break; 993 } 994 } 995 996 // mInputType has been set from inputType, possibly modified by mInputMethod. 997 // Specialize mInputType to [web]password if we have a text class and the original input 998 // type was a password. 999 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 1000 if (password || passwordInputType) { 1001 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1002 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 1003 } 1004 if (webPasswordInputType) { 1005 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1006 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 1007 } 1008 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 1009 if (numberPasswordInputType) { 1010 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1011 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 1012 } 1013 } 1014 1015 if (selectallonfocus) { 1016 mSelectAllOnFocus = true; 1017 1018 if (bufferType == BufferType.NORMAL) 1019 bufferType = BufferType.SPANNABLE; 1020 } 1021 1022 setCompoundDrawablesWithIntrinsicBounds( 1023 drawableLeft, drawableTop, drawableRight, drawableBottom); 1024 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1025 setCompoundDrawablePadding(drawablePadding); 1026 1027 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1028 // of lines of height are unchanged for multi-line TextViews. 1029 setInputTypeSingleLine(singleLine); 1030 applySingleLine(singleLine, singleLine, singleLine); 1031 1032 if (singleLine && mInput == null && ellipsize < 0) { 1033 ellipsize = 3; // END 1034 } 1035 1036 switch (ellipsize) { 1037 case 1: 1038 setEllipsize(TextUtils.TruncateAt.START); 1039 break; 1040 case 2: 1041 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1042 break; 1043 case 3: 1044 setEllipsize(TextUtils.TruncateAt.END); 1045 break; 1046 case 4: 1047 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1048 setHorizontalFadingEdgeEnabled(true); 1049 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1050 } else { 1051 setHorizontalFadingEdgeEnabled(false); 1052 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1053 } 1054 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1055 break; 1056 } 1057 1058 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1059 setHintTextColor(textColorHint); 1060 setLinkTextColor(textColorLink); 1061 if (textColorHighlight != 0) { 1062 setHighlightColor(textColorHighlight); 1063 } 1064 setRawTextSize(textSize); 1065 1066 if (allCaps) { 1067 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1068 } 1069 1070 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1071 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1072 typefaceIndex = MONOSPACE; 1073 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1074 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1075 typefaceIndex = MONOSPACE; 1076 } 1077 1078 setTypefaceByIndex(typefaceIndex, styleIndex); 1079 1080 if (shadowcolor != 0) { 1081 setShadowLayer(r, dx, dy, shadowcolor); 1082 } 1083 1084 if (maxlength >= 0) { 1085 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1086 } else { 1087 setFilters(NO_FILTERS); 1088 } 1089 1090 setText(text, bufferType); 1091 if (hint != null) setHint(hint); 1092 1093 /* 1094 * Views are not normally focusable unless specified to be. 1095 * However, TextViews that have input or movement methods *are* 1096 * focusable by default. 1097 */ 1098 a = context.obtainStyledAttributes(attrs, 1099 com.android.internal.R.styleable.View, 1100 defStyle, 0); 1101 1102 boolean focusable = mMovement != null || mInput != null; 1103 boolean clickable = focusable; 1104 boolean longClickable = focusable; 1105 1106 n = a.getIndexCount(); 1107 for (int i = 0; i < n; i++) { 1108 int attr = a.getIndex(i); 1109 1110 switch (attr) { 1111 case com.android.internal.R.styleable.View_focusable: 1112 focusable = a.getBoolean(attr, focusable); 1113 break; 1114 1115 case com.android.internal.R.styleable.View_clickable: 1116 clickable = a.getBoolean(attr, clickable); 1117 break; 1118 1119 case com.android.internal.R.styleable.View_longClickable: 1120 longClickable = a.getBoolean(attr, longClickable); 1121 break; 1122 } 1123 } 1124 a.recycle(); 1125 1126 setFocusable(focusable); 1127 setClickable(clickable); 1128 setLongClickable(longClickable); 1129 1130 prepareCursorControllers(); 1131 1132 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1133 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1134 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1135 } 1136 1137 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1138 Typeface tf = null; 1139 switch (typefaceIndex) { 1140 case SANS: 1141 tf = Typeface.SANS_SERIF; 1142 break; 1143 1144 case SERIF: 1145 tf = Typeface.SERIF; 1146 break; 1147 1148 case MONOSPACE: 1149 tf = Typeface.MONOSPACE; 1150 break; 1151 } 1152 1153 setTypeface(tf, styleIndex); 1154 } 1155 1156 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1157 boolean hasRelativeDrawables = (start != null) || (end != null); 1158 if (hasRelativeDrawables) { 1159 Drawables dr = mDrawables; 1160 if (dr == null) { 1161 mDrawables = dr = new Drawables(); 1162 } 1163 final Rect compoundRect = dr.mCompoundRect; 1164 int[] state = getDrawableState(); 1165 if (start != null) { 1166 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1167 start.setState(state); 1168 start.copyBounds(compoundRect); 1169 start.setCallback(this); 1170 1171 dr.mDrawableStart = start; 1172 dr.mDrawableSizeStart = compoundRect.width(); 1173 dr.mDrawableHeightStart = compoundRect.height(); 1174 } else { 1175 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1176 } 1177 if (end != null) { 1178 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1179 end.setState(state); 1180 end.copyBounds(compoundRect); 1181 end.setCallback(this); 1182 1183 dr.mDrawableEnd = end; 1184 dr.mDrawableSizeEnd = compoundRect.width(); 1185 dr.mDrawableHeightEnd = compoundRect.height(); 1186 } else { 1187 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1188 } 1189 } 1190 } 1191 1192 @Override 1193 public void setEnabled(boolean enabled) { 1194 if (enabled == isEnabled()) { 1195 return; 1196 } 1197 1198 if (!enabled) { 1199 // Hide the soft input if the currently active TextView is disabled 1200 InputMethodManager imm = InputMethodManager.peekInstance(); 1201 if (imm != null && imm.isActive(this)) { 1202 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1203 } 1204 } 1205 super.setEnabled(enabled); 1206 prepareCursorControllers(); 1207 if (enabled) { 1208 // Make sure IME is updated with current editor info. 1209 InputMethodManager imm = InputMethodManager.peekInstance(); 1210 if (imm != null) imm.restartInput(this); 1211 } 1212 1213 // start or stop the cursor blinking as appropriate 1214 makeBlink(); 1215 } 1216 1217 /** 1218 * Sets the typeface and style in which the text should be displayed, 1219 * and turns on the fake bold and italic bits in the Paint if the 1220 * Typeface that you provided does not have all the bits in the 1221 * style that you specified. 1222 * 1223 * @attr ref android.R.styleable#TextView_typeface 1224 * @attr ref android.R.styleable#TextView_textStyle 1225 */ 1226 public void setTypeface(Typeface tf, int style) { 1227 if (style > 0) { 1228 if (tf == null) { 1229 tf = Typeface.defaultFromStyle(style); 1230 } else { 1231 tf = Typeface.create(tf, style); 1232 } 1233 1234 setTypeface(tf); 1235 // now compute what (if any) algorithmic styling is needed 1236 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1237 int need = style & ~typefaceStyle; 1238 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1239 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1240 } else { 1241 mTextPaint.setFakeBoldText(false); 1242 mTextPaint.setTextSkewX(0); 1243 setTypeface(tf); 1244 } 1245 } 1246 1247 /** 1248 * Subclasses override this to specify that they have a KeyListener 1249 * by default even if not specifically called for in the XML options. 1250 */ 1251 protected boolean getDefaultEditable() { 1252 return false; 1253 } 1254 1255 /** 1256 * Subclasses override this to specify a default movement method. 1257 */ 1258 protected MovementMethod getDefaultMovementMethod() { 1259 return null; 1260 } 1261 1262 /** 1263 * Return the text the TextView is displaying. If setText() was called with 1264 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1265 * the return value from this method to Spannable or Editable, respectively. 1266 * 1267 * Note: The content of the return value should not be modified. If you want 1268 * a modifiable one, you should make your own copy first. 1269 */ 1270 @ViewDebug.CapturedViewProperty 1271 public CharSequence getText() { 1272 return mText; 1273 } 1274 1275 /** 1276 * Returns the length, in characters, of the text managed by this TextView 1277 */ 1278 public int length() { 1279 return mText.length(); 1280 } 1281 1282 /** 1283 * Return the text the TextView is displaying as an Editable object. If 1284 * the text is not editable, null is returned. 1285 * 1286 * @see #getText 1287 */ 1288 public Editable getEditableText() { 1289 return (mText instanceof Editable) ? (Editable)mText : null; 1290 } 1291 1292 /** 1293 * @return the height of one standard line in pixels. Note that markup 1294 * within the text can cause individual lines to be taller or shorter 1295 * than this height, and the layout may contain additional first- 1296 * or last-line padding. 1297 */ 1298 public int getLineHeight() { 1299 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1300 } 1301 1302 /** 1303 * @return the Layout that is currently being used to display the text. 1304 * This can be null if the text or width has recently changes. 1305 */ 1306 public final Layout getLayout() { 1307 return mLayout; 1308 } 1309 1310 /** 1311 * @return the current key listener for this TextView. 1312 * This will frequently be null for non-EditText TextViews. 1313 */ 1314 public final KeyListener getKeyListener() { 1315 return mInput; 1316 } 1317 1318 /** 1319 * Sets the key listener to be used with this TextView. This can be null 1320 * to disallow user input. Note that this method has significant and 1321 * subtle interactions with soft keyboards and other input method: 1322 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1323 * for important details. Calling this method will replace the current 1324 * content type of the text view with the content type returned by the 1325 * key listener. 1326 * <p> 1327 * Be warned that if you want a TextView with a key listener or movement 1328 * method not to be focusable, or if you want a TextView without a 1329 * key listener or movement method to be focusable, you must call 1330 * {@link #setFocusable} again after calling this to get the focusability 1331 * back the way you want it. 1332 * 1333 * @attr ref android.R.styleable#TextView_numeric 1334 * @attr ref android.R.styleable#TextView_digits 1335 * @attr ref android.R.styleable#TextView_phoneNumber 1336 * @attr ref android.R.styleable#TextView_inputMethod 1337 * @attr ref android.R.styleable#TextView_capitalize 1338 * @attr ref android.R.styleable#TextView_autoText 1339 */ 1340 public void setKeyListener(KeyListener input) { 1341 setKeyListenerOnly(input); 1342 fixFocusableAndClickableSettings(); 1343 1344 if (input != null) { 1345 try { 1346 mInputType = mInput.getInputType(); 1347 } catch (IncompatibleClassChangeError e) { 1348 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1349 } 1350 // Change inputType, without affecting transformation. 1351 // No need to applySingleLine since mSingleLine is unchanged. 1352 setInputTypeSingleLine(mSingleLine); 1353 } else { 1354 mInputType = EditorInfo.TYPE_NULL; 1355 } 1356 1357 InputMethodManager imm = InputMethodManager.peekInstance(); 1358 if (imm != null) imm.restartInput(this); 1359 } 1360 1361 private void setKeyListenerOnly(KeyListener input) { 1362 mInput = input; 1363 if (mInput != null && !(mText instanceof Editable)) 1364 setText(mText); 1365 1366 setFilters((Editable) mText, mFilters); 1367 } 1368 1369 /** 1370 * @return the movement method being used for this TextView. 1371 * This will frequently be null for non-EditText TextViews. 1372 */ 1373 public final MovementMethod getMovementMethod() { 1374 return mMovement; 1375 } 1376 1377 /** 1378 * Sets the movement method (arrow key handler) to be used for 1379 * this TextView. This can be null to disallow using the arrow keys 1380 * to move the cursor or scroll the view. 1381 * <p> 1382 * Be warned that if you want a TextView with a key listener or movement 1383 * method not to be focusable, or if you want a TextView without a 1384 * key listener or movement method to be focusable, you must call 1385 * {@link #setFocusable} again after calling this to get the focusability 1386 * back the way you want it. 1387 */ 1388 public final void setMovementMethod(MovementMethod movement) { 1389 mMovement = movement; 1390 1391 if (mMovement != null && !(mText instanceof Spannable)) 1392 setText(mText); 1393 1394 fixFocusableAndClickableSettings(); 1395 1396 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1397 prepareCursorControllers(); 1398 } 1399 1400 private void fixFocusableAndClickableSettings() { 1401 if ((mMovement != null) || mInput != null) { 1402 setFocusable(true); 1403 setClickable(true); 1404 setLongClickable(true); 1405 } else { 1406 setFocusable(false); 1407 setClickable(false); 1408 setLongClickable(false); 1409 } 1410 } 1411 1412 /** 1413 * @return the current transformation method for this TextView. 1414 * This will frequently be null except for single-line and password 1415 * fields. 1416 */ 1417 public final TransformationMethod getTransformationMethod() { 1418 return mTransformation; 1419 } 1420 1421 /** 1422 * Sets the transformation that is applied to the text that this 1423 * TextView is displaying. 1424 * 1425 * @attr ref android.R.styleable#TextView_password 1426 * @attr ref android.R.styleable#TextView_singleLine 1427 */ 1428 public final void setTransformationMethod(TransformationMethod method) { 1429 if (method == mTransformation) { 1430 // Avoid the setText() below if the transformation is 1431 // the same. 1432 return; 1433 } 1434 if (mTransformation != null) { 1435 if (mText instanceof Spannable) { 1436 ((Spannable) mText).removeSpan(mTransformation); 1437 } 1438 } 1439 1440 mTransformation = method; 1441 1442 if (method instanceof TransformationMethod2) { 1443 TransformationMethod2 method2 = (TransformationMethod2) method; 1444 mAllowTransformationLengthChange = !mTextIsSelectable && !(mText instanceof Editable); 1445 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1446 } else { 1447 mAllowTransformationLengthChange = false; 1448 } 1449 1450 setText(mText); 1451 } 1452 1453 /** 1454 * Returns the top padding of the view, plus space for the top 1455 * Drawable if any. 1456 */ 1457 public int getCompoundPaddingTop() { 1458 final Drawables dr = mDrawables; 1459 if (dr == null || dr.mDrawableTop == null) { 1460 return mPaddingTop; 1461 } else { 1462 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1463 } 1464 } 1465 1466 /** 1467 * Returns the bottom padding of the view, plus space for the bottom 1468 * Drawable if any. 1469 */ 1470 public int getCompoundPaddingBottom() { 1471 final Drawables dr = mDrawables; 1472 if (dr == null || dr.mDrawableBottom == null) { 1473 return mPaddingBottom; 1474 } else { 1475 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1476 } 1477 } 1478 1479 /** 1480 * Returns the left padding of the view, plus space for the left 1481 * Drawable if any. 1482 */ 1483 public int getCompoundPaddingLeft() { 1484 final Drawables dr = mDrawables; 1485 if (dr == null || dr.mDrawableLeft == null) { 1486 return mPaddingLeft; 1487 } else { 1488 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1489 } 1490 } 1491 1492 /** 1493 * Returns the right padding of the view, plus space for the right 1494 * Drawable if any. 1495 */ 1496 public int getCompoundPaddingRight() { 1497 final Drawables dr = mDrawables; 1498 if (dr == null || dr.mDrawableRight == null) { 1499 return mPaddingRight; 1500 } else { 1501 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1502 } 1503 } 1504 1505 /** 1506 * Returns the start padding of the view, plus space for the start 1507 * Drawable if any. 1508 * 1509 * @hide 1510 */ 1511 public int getCompoundPaddingStart() { 1512 resolveDrawables(); 1513 switch(getResolvedLayoutDirection()) { 1514 default: 1515 case LAYOUT_DIRECTION_LTR: 1516 return getCompoundPaddingLeft(); 1517 case LAYOUT_DIRECTION_RTL: 1518 return getCompoundPaddingRight(); 1519 } 1520 } 1521 1522 /** 1523 * Returns the end padding of the view, plus space for the end 1524 * Drawable if any. 1525 * 1526 * @hide 1527 */ 1528 public int getCompoundPaddingEnd() { 1529 resolveDrawables(); 1530 switch(getResolvedLayoutDirection()) { 1531 default: 1532 case LAYOUT_DIRECTION_LTR: 1533 return getCompoundPaddingRight(); 1534 case LAYOUT_DIRECTION_RTL: 1535 return getCompoundPaddingLeft(); 1536 } 1537 } 1538 1539 /** 1540 * Returns the extended top padding of the view, including both the 1541 * top Drawable if any and any extra space to keep more than maxLines 1542 * of text from showing. It is only valid to call this after measuring. 1543 */ 1544 public int getExtendedPaddingTop() { 1545 if (mMaxMode != LINES) { 1546 return getCompoundPaddingTop(); 1547 } 1548 1549 if (mLayout.getLineCount() <= mMaximum) { 1550 return getCompoundPaddingTop(); 1551 } 1552 1553 int top = getCompoundPaddingTop(); 1554 int bottom = getCompoundPaddingBottom(); 1555 int viewht = getHeight() - top - bottom; 1556 int layoutht = mLayout.getLineTop(mMaximum); 1557 1558 if (layoutht >= viewht) { 1559 return top; 1560 } 1561 1562 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1563 if (gravity == Gravity.TOP) { 1564 return top; 1565 } else if (gravity == Gravity.BOTTOM) { 1566 return top + viewht - layoutht; 1567 } else { // (gravity == Gravity.CENTER_VERTICAL) 1568 return top + (viewht - layoutht) / 2; 1569 } 1570 } 1571 1572 /** 1573 * Returns the extended bottom padding of the view, including both the 1574 * bottom Drawable if any and any extra space to keep more than maxLines 1575 * of text from showing. It is only valid to call this after measuring. 1576 */ 1577 public int getExtendedPaddingBottom() { 1578 if (mMaxMode != LINES) { 1579 return getCompoundPaddingBottom(); 1580 } 1581 1582 if (mLayout.getLineCount() <= mMaximum) { 1583 return getCompoundPaddingBottom(); 1584 } 1585 1586 int top = getCompoundPaddingTop(); 1587 int bottom = getCompoundPaddingBottom(); 1588 int viewht = getHeight() - top - bottom; 1589 int layoutht = mLayout.getLineTop(mMaximum); 1590 1591 if (layoutht >= viewht) { 1592 return bottom; 1593 } 1594 1595 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1596 if (gravity == Gravity.TOP) { 1597 return bottom + viewht - layoutht; 1598 } else if (gravity == Gravity.BOTTOM) { 1599 return bottom; 1600 } else { // (gravity == Gravity.CENTER_VERTICAL) 1601 return bottom + (viewht - layoutht) / 2; 1602 } 1603 } 1604 1605 /** 1606 * Returns the total left padding of the view, including the left 1607 * Drawable if any. 1608 */ 1609 public int getTotalPaddingLeft() { 1610 return getCompoundPaddingLeft(); 1611 } 1612 1613 /** 1614 * Returns the total right padding of the view, including the right 1615 * Drawable if any. 1616 */ 1617 public int getTotalPaddingRight() { 1618 return getCompoundPaddingRight(); 1619 } 1620 1621 /** 1622 * Returns the total start padding of the view, including the start 1623 * Drawable if any. 1624 * 1625 * @hide 1626 */ 1627 public int getTotalPaddingStart() { 1628 return getCompoundPaddingStart(); 1629 } 1630 1631 /** 1632 * Returns the total end padding of the view, including the end 1633 * Drawable if any. 1634 * 1635 * @hide 1636 */ 1637 public int getTotalPaddingEnd() { 1638 return getCompoundPaddingEnd(); 1639 } 1640 1641 /** 1642 * Returns the total top padding of the view, including the top 1643 * Drawable if any, the extra space to keep more than maxLines 1644 * from showing, and the vertical offset for gravity, if any. 1645 */ 1646 public int getTotalPaddingTop() { 1647 return getExtendedPaddingTop() + getVerticalOffset(true); 1648 } 1649 1650 /** 1651 * Returns the total bottom padding of the view, including the bottom 1652 * Drawable if any, the extra space to keep more than maxLines 1653 * from showing, and the vertical offset for gravity, if any. 1654 */ 1655 public int getTotalPaddingBottom() { 1656 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1657 } 1658 1659 /** 1660 * Sets the Drawables (if any) to appear to the left of, above, 1661 * to the right of, and below the text. Use null if you do not 1662 * want a Drawable there. The Drawables must already have had 1663 * {@link Drawable#setBounds} called. 1664 * 1665 * @attr ref android.R.styleable#TextView_drawableLeft 1666 * @attr ref android.R.styleable#TextView_drawableTop 1667 * @attr ref android.R.styleable#TextView_drawableRight 1668 * @attr ref android.R.styleable#TextView_drawableBottom 1669 */ 1670 public void setCompoundDrawables(Drawable left, Drawable top, 1671 Drawable right, Drawable bottom) { 1672 Drawables dr = mDrawables; 1673 1674 final boolean drawables = left != null || top != null 1675 || right != null || bottom != null; 1676 1677 if (!drawables) { 1678 // Clearing drawables... can we free the data structure? 1679 if (dr != null) { 1680 if (dr.mDrawablePadding == 0) { 1681 mDrawables = null; 1682 } else { 1683 // We need to retain the last set padding, so just clear 1684 // out all of the fields in the existing structure. 1685 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1686 dr.mDrawableLeft = null; 1687 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1688 dr.mDrawableTop = null; 1689 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1690 dr.mDrawableRight = null; 1691 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1692 dr.mDrawableBottom = null; 1693 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1694 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1695 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1696 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1697 } 1698 } 1699 } else { 1700 if (dr == null) { 1701 mDrawables = dr = new Drawables(); 1702 } 1703 1704 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1705 dr.mDrawableLeft.setCallback(null); 1706 } 1707 dr.mDrawableLeft = left; 1708 1709 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1710 dr.mDrawableTop.setCallback(null); 1711 } 1712 dr.mDrawableTop = top; 1713 1714 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1715 dr.mDrawableRight.setCallback(null); 1716 } 1717 dr.mDrawableRight = right; 1718 1719 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1720 dr.mDrawableBottom.setCallback(null); 1721 } 1722 dr.mDrawableBottom = bottom; 1723 1724 final Rect compoundRect = dr.mCompoundRect; 1725 int[] state; 1726 1727 state = getDrawableState(); 1728 1729 if (left != null) { 1730 left.setState(state); 1731 left.copyBounds(compoundRect); 1732 left.setCallback(this); 1733 dr.mDrawableSizeLeft = compoundRect.width(); 1734 dr.mDrawableHeightLeft = compoundRect.height(); 1735 } else { 1736 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1737 } 1738 1739 if (right != null) { 1740 right.setState(state); 1741 right.copyBounds(compoundRect); 1742 right.setCallback(this); 1743 dr.mDrawableSizeRight = compoundRect.width(); 1744 dr.mDrawableHeightRight = compoundRect.height(); 1745 } else { 1746 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1747 } 1748 1749 if (top != null) { 1750 top.setState(state); 1751 top.copyBounds(compoundRect); 1752 top.setCallback(this); 1753 dr.mDrawableSizeTop = compoundRect.height(); 1754 dr.mDrawableWidthTop = compoundRect.width(); 1755 } else { 1756 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1757 } 1758 1759 if (bottom != null) { 1760 bottom.setState(state); 1761 bottom.copyBounds(compoundRect); 1762 bottom.setCallback(this); 1763 dr.mDrawableSizeBottom = compoundRect.height(); 1764 dr.mDrawableWidthBottom = compoundRect.width(); 1765 } else { 1766 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1767 } 1768 } 1769 1770 invalidate(); 1771 requestLayout(); 1772 } 1773 1774 /** 1775 * Sets the Drawables (if any) to appear to the left of, above, 1776 * to the right of, and below the text. Use 0 if you do not 1777 * want a Drawable there. The Drawables' bounds will be set to 1778 * their intrinsic bounds. 1779 * 1780 * @param left Resource identifier of the left Drawable. 1781 * @param top Resource identifier of the top Drawable. 1782 * @param right Resource identifier of the right Drawable. 1783 * @param bottom Resource identifier of the bottom Drawable. 1784 * 1785 * @attr ref android.R.styleable#TextView_drawableLeft 1786 * @attr ref android.R.styleable#TextView_drawableTop 1787 * @attr ref android.R.styleable#TextView_drawableRight 1788 * @attr ref android.R.styleable#TextView_drawableBottom 1789 */ 1790 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1791 final Resources resources = getContext().getResources(); 1792 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1793 top != 0 ? resources.getDrawable(top) : null, 1794 right != 0 ? resources.getDrawable(right) : null, 1795 bottom != 0 ? resources.getDrawable(bottom) : null); 1796 } 1797 1798 /** 1799 * Sets the Drawables (if any) to appear to the left of, above, 1800 * to the right of, and below the text. Use null if you do not 1801 * want a Drawable there. The Drawables' bounds will be set to 1802 * their intrinsic bounds. 1803 * 1804 * @attr ref android.R.styleable#TextView_drawableLeft 1805 * @attr ref android.R.styleable#TextView_drawableTop 1806 * @attr ref android.R.styleable#TextView_drawableRight 1807 * @attr ref android.R.styleable#TextView_drawableBottom 1808 */ 1809 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1810 Drawable right, Drawable bottom) { 1811 1812 if (left != null) { 1813 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1814 } 1815 if (right != null) { 1816 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1817 } 1818 if (top != null) { 1819 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1820 } 1821 if (bottom != null) { 1822 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1823 } 1824 setCompoundDrawables(left, top, right, bottom); 1825 } 1826 1827 /** 1828 * Sets the Drawables (if any) to appear to the start of, above, 1829 * to the end of, and below the text. Use null if you do not 1830 * want a Drawable there. The Drawables must already have had 1831 * {@link Drawable#setBounds} called. 1832 * 1833 * @attr ref android.R.styleable#TextView_drawableStart 1834 * @attr ref android.R.styleable#TextView_drawableTop 1835 * @attr ref android.R.styleable#TextView_drawableEnd 1836 * @attr ref android.R.styleable#TextView_drawableBottom 1837 * 1838 * @hide 1839 */ 1840 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 1841 Drawable end, Drawable bottom) { 1842 Drawables dr = mDrawables; 1843 1844 final boolean drawables = start != null || top != null 1845 || end != null || bottom != null; 1846 1847 if (!drawables) { 1848 // Clearing drawables... can we free the data structure? 1849 if (dr != null) { 1850 if (dr.mDrawablePadding == 0) { 1851 mDrawables = null; 1852 } else { 1853 // We need to retain the last set padding, so just clear 1854 // out all of the fields in the existing structure. 1855 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 1856 dr.mDrawableStart = null; 1857 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1858 dr.mDrawableTop = null; 1859 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 1860 dr.mDrawableEnd = null; 1861 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1862 dr.mDrawableBottom = null; 1863 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1864 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1865 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1866 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1867 } 1868 } 1869 } else { 1870 if (dr == null) { 1871 mDrawables = dr = new Drawables(); 1872 } 1873 1874 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 1875 dr.mDrawableStart.setCallback(null); 1876 } 1877 dr.mDrawableStart = start; 1878 1879 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1880 dr.mDrawableTop.setCallback(null); 1881 } 1882 dr.mDrawableTop = top; 1883 1884 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 1885 dr.mDrawableEnd.setCallback(null); 1886 } 1887 dr.mDrawableEnd = end; 1888 1889 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1890 dr.mDrawableBottom.setCallback(null); 1891 } 1892 dr.mDrawableBottom = bottom; 1893 1894 final Rect compoundRect = dr.mCompoundRect; 1895 int[] state; 1896 1897 state = getDrawableState(); 1898 1899 if (start != null) { 1900 start.setState(state); 1901 start.copyBounds(compoundRect); 1902 start.setCallback(this); 1903 dr.mDrawableSizeStart = compoundRect.width(); 1904 dr.mDrawableHeightStart = compoundRect.height(); 1905 } else { 1906 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1907 } 1908 1909 if (end != null) { 1910 end.setState(state); 1911 end.copyBounds(compoundRect); 1912 end.setCallback(this); 1913 dr.mDrawableSizeEnd = compoundRect.width(); 1914 dr.mDrawableHeightEnd = compoundRect.height(); 1915 } else { 1916 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1917 } 1918 1919 if (top != null) { 1920 top.setState(state); 1921 top.copyBounds(compoundRect); 1922 top.setCallback(this); 1923 dr.mDrawableSizeTop = compoundRect.height(); 1924 dr.mDrawableWidthTop = compoundRect.width(); 1925 } else { 1926 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1927 } 1928 1929 if (bottom != null) { 1930 bottom.setState(state); 1931 bottom.copyBounds(compoundRect); 1932 bottom.setCallback(this); 1933 dr.mDrawableSizeBottom = compoundRect.height(); 1934 dr.mDrawableWidthBottom = compoundRect.width(); 1935 } else { 1936 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1937 } 1938 } 1939 1940 resolveDrawables(); 1941 invalidate(); 1942 requestLayout(); 1943 } 1944 1945 /** 1946 * Sets the Drawables (if any) to appear to the start of, above, 1947 * to the end of, and below the text. Use 0 if you do not 1948 * want a Drawable there. The Drawables' bounds will be set to 1949 * their intrinsic bounds. 1950 * 1951 * @param start Resource identifier of the start Drawable. 1952 * @param top Resource identifier of the top Drawable. 1953 * @param end Resource identifier of the end Drawable. 1954 * @param bottom Resource identifier of the bottom Drawable. 1955 * 1956 * @attr ref android.R.styleable#TextView_drawableStart 1957 * @attr ref android.R.styleable#TextView_drawableTop 1958 * @attr ref android.R.styleable#TextView_drawableEnd 1959 * @attr ref android.R.styleable#TextView_drawableBottom 1960 * 1961 * @hide 1962 */ 1963 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 1964 int bottom) { 1965 resetResolvedDrawables(); 1966 final Resources resources = getContext().getResources(); 1967 setCompoundDrawablesRelativeWithIntrinsicBounds( 1968 start != 0 ? resources.getDrawable(start) : null, 1969 top != 0 ? resources.getDrawable(top) : null, 1970 end != 0 ? resources.getDrawable(end) : null, 1971 bottom != 0 ? resources.getDrawable(bottom) : null); 1972 } 1973 1974 /** 1975 * Sets the Drawables (if any) to appear to the start of, above, 1976 * to the end of, and below the text. Use null if you do not 1977 * want a Drawable there. The Drawables' bounds will be set to 1978 * their intrinsic bounds. 1979 * 1980 * @attr ref android.R.styleable#TextView_drawableStart 1981 * @attr ref android.R.styleable#TextView_drawableTop 1982 * @attr ref android.R.styleable#TextView_drawableEnd 1983 * @attr ref android.R.styleable#TextView_drawableBottom 1984 * 1985 * @hide 1986 */ 1987 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 1988 Drawable end, Drawable bottom) { 1989 1990 resetResolvedDrawables(); 1991 if (start != null) { 1992 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1993 } 1994 if (end != null) { 1995 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1996 } 1997 if (top != null) { 1998 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1999 } 2000 if (bottom != null) { 2001 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2002 } 2003 setCompoundDrawablesRelative(start, top, end, bottom); 2004 } 2005 2006 /** 2007 * Returns drawables for the left, top, right, and bottom borders. 2008 */ 2009 public Drawable[] getCompoundDrawables() { 2010 final Drawables dr = mDrawables; 2011 if (dr != null) { 2012 return new Drawable[] { 2013 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2014 }; 2015 } else { 2016 return new Drawable[] { null, null, null, null }; 2017 } 2018 } 2019 2020 /** 2021 * Returns drawables for the start, top, end, and bottom borders. 2022 * 2023 * @hide 2024 */ 2025 public Drawable[] getCompoundDrawablesRelative() { 2026 final Drawables dr = mDrawables; 2027 if (dr != null) { 2028 return new Drawable[] { 2029 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2030 }; 2031 } else { 2032 return new Drawable[] { null, null, null, null }; 2033 } 2034 } 2035 2036 /** 2037 * Sets the size of the padding between the compound drawables and 2038 * the text. 2039 * 2040 * @attr ref android.R.styleable#TextView_drawablePadding 2041 */ 2042 public void setCompoundDrawablePadding(int pad) { 2043 Drawables dr = mDrawables; 2044 if (pad == 0) { 2045 if (dr != null) { 2046 dr.mDrawablePadding = pad; 2047 } 2048 } else { 2049 if (dr == null) { 2050 mDrawables = dr = new Drawables(); 2051 } 2052 dr.mDrawablePadding = pad; 2053 } 2054 2055 invalidate(); 2056 requestLayout(); 2057 } 2058 2059 /** 2060 * Returns the padding between the compound drawables and the text. 2061 */ 2062 public int getCompoundDrawablePadding() { 2063 final Drawables dr = mDrawables; 2064 return dr != null ? dr.mDrawablePadding : 0; 2065 } 2066 2067 @Override 2068 public void setPadding(int left, int top, int right, int bottom) { 2069 if (left != mPaddingLeft || 2070 right != mPaddingRight || 2071 top != mPaddingTop || 2072 bottom != mPaddingBottom) { 2073 nullLayouts(); 2074 } 2075 2076 // the super call will requestLayout() 2077 super.setPadding(left, top, right, bottom); 2078 invalidate(); 2079 } 2080 2081 /** 2082 * Gets the autolink mask of the text. See {@link 2083 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2084 * possible values. 2085 * 2086 * @attr ref android.R.styleable#TextView_autoLink 2087 */ 2088 public final int getAutoLinkMask() { 2089 return mAutoLinkMask; 2090 } 2091 2092 /** 2093 * Sets the text color, size, style, hint color, and highlight color 2094 * from the specified TextAppearance resource. 2095 */ 2096 public void setTextAppearance(Context context, int resid) { 2097 TypedArray appearance = 2098 context.obtainStyledAttributes(resid, 2099 com.android.internal.R.styleable.TextAppearance); 2100 2101 int color; 2102 ColorStateList colors; 2103 int ts; 2104 2105 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2106 if (color != 0) { 2107 setHighlightColor(color); 2108 } 2109 2110 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2111 TextAppearance_textColor); 2112 if (colors != null) { 2113 setTextColor(colors); 2114 } 2115 2116 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2117 TextAppearance_textSize, 0); 2118 if (ts != 0) { 2119 setRawTextSize(ts); 2120 } 2121 2122 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2123 TextAppearance_textColorHint); 2124 if (colors != null) { 2125 setHintTextColor(colors); 2126 } 2127 2128 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2129 TextAppearance_textColorLink); 2130 if (colors != null) { 2131 setLinkTextColor(colors); 2132 } 2133 2134 int typefaceIndex, styleIndex; 2135 2136 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2137 TextAppearance_typeface, -1); 2138 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2139 TextAppearance_textStyle, -1); 2140 2141 setTypefaceByIndex(typefaceIndex, styleIndex); 2142 2143 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2144 false)) { 2145 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2146 } 2147 2148 appearance.recycle(); 2149 } 2150 2151 /** 2152 * @return the size (in pixels) of the default text size in this TextView. 2153 */ 2154 public float getTextSize() { 2155 return mTextPaint.getTextSize(); 2156 } 2157 2158 /** 2159 * Set the default text size to the given value, interpreted as "scaled 2160 * pixel" units. This size is adjusted based on the current density and 2161 * user font size preference. 2162 * 2163 * @param size The scaled pixel size. 2164 * 2165 * @attr ref android.R.styleable#TextView_textSize 2166 */ 2167 @android.view.RemotableViewMethod 2168 public void setTextSize(float size) { 2169 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2170 } 2171 2172 /** 2173 * Set the default text size to a given unit and value. See {@link 2174 * TypedValue} for the possible dimension units. 2175 * 2176 * @param unit The desired dimension unit. 2177 * @param size The desired size in the given units. 2178 * 2179 * @attr ref android.R.styleable#TextView_textSize 2180 */ 2181 public void setTextSize(int unit, float size) { 2182 Context c = getContext(); 2183 Resources r; 2184 2185 if (c == null) 2186 r = Resources.getSystem(); 2187 else 2188 r = c.getResources(); 2189 2190 setRawTextSize(TypedValue.applyDimension( 2191 unit, size, r.getDisplayMetrics())); 2192 } 2193 2194 private void setRawTextSize(float size) { 2195 if (size != mTextPaint.getTextSize()) { 2196 mTextPaint.setTextSize(size); 2197 2198 if (mLayout != null) { 2199 nullLayouts(); 2200 requestLayout(); 2201 invalidate(); 2202 } 2203 } 2204 } 2205 2206 /** 2207 * @return the extent by which text is currently being stretched 2208 * horizontally. This will usually be 1. 2209 */ 2210 public float getTextScaleX() { 2211 return mTextPaint.getTextScaleX(); 2212 } 2213 2214 /** 2215 * Sets the extent by which text should be stretched horizontally. 2216 * 2217 * @attr ref android.R.styleable#TextView_textScaleX 2218 */ 2219 @android.view.RemotableViewMethod 2220 public void setTextScaleX(float size) { 2221 if (size != mTextPaint.getTextScaleX()) { 2222 mUserSetTextScaleX = true; 2223 mTextPaint.setTextScaleX(size); 2224 2225 if (mLayout != null) { 2226 nullLayouts(); 2227 requestLayout(); 2228 invalidate(); 2229 } 2230 } 2231 } 2232 2233 /** 2234 * Sets the typeface and style in which the text should be displayed. 2235 * Note that not all Typeface families actually have bold and italic 2236 * variants, so you may need to use 2237 * {@link #setTypeface(Typeface, int)} to get the appearance 2238 * that you actually want. 2239 * 2240 * @attr ref android.R.styleable#TextView_typeface 2241 * @attr ref android.R.styleable#TextView_textStyle 2242 */ 2243 public void setTypeface(Typeface tf) { 2244 if (mTextPaint.getTypeface() != tf) { 2245 mTextPaint.setTypeface(tf); 2246 2247 if (mLayout != null) { 2248 nullLayouts(); 2249 requestLayout(); 2250 invalidate(); 2251 } 2252 } 2253 } 2254 2255 /** 2256 * @return the current typeface and style in which the text is being 2257 * displayed. 2258 */ 2259 public Typeface getTypeface() { 2260 return mTextPaint.getTypeface(); 2261 } 2262 2263 /** 2264 * Sets the text color for all the states (normal, selected, 2265 * focused) to be this color. 2266 * 2267 * @attr ref android.R.styleable#TextView_textColor 2268 */ 2269 @android.view.RemotableViewMethod 2270 public void setTextColor(int color) { 2271 mTextColor = ColorStateList.valueOf(color); 2272 updateTextColors(); 2273 } 2274 2275 /** 2276 * Sets the text color. 2277 * 2278 * @attr ref android.R.styleable#TextView_textColor 2279 */ 2280 public void setTextColor(ColorStateList colors) { 2281 if (colors == null) { 2282 throw new NullPointerException(); 2283 } 2284 2285 mTextColor = colors; 2286 updateTextColors(); 2287 } 2288 2289 /** 2290 * Return the set of text colors. 2291 * 2292 * @return Returns the set of text colors. 2293 */ 2294 public final ColorStateList getTextColors() { 2295 return mTextColor; 2296 } 2297 2298 /** 2299 * <p>Return the current color selected for normal text.</p> 2300 * 2301 * @return Returns the current text color. 2302 */ 2303 public final int getCurrentTextColor() { 2304 return mCurTextColor; 2305 } 2306 2307 /** 2308 * Sets the color used to display the selection highlight. 2309 * 2310 * @attr ref android.R.styleable#TextView_textColorHighlight 2311 */ 2312 @android.view.RemotableViewMethod 2313 public void setHighlightColor(int color) { 2314 if (mHighlightColor != color) { 2315 mHighlightColor = color; 2316 invalidate(); 2317 } 2318 } 2319 2320 /** 2321 * Gives the text a shadow of the specified radius and color, the specified 2322 * distance from its normal position. 2323 * 2324 * @attr ref android.R.styleable#TextView_shadowColor 2325 * @attr ref android.R.styleable#TextView_shadowDx 2326 * @attr ref android.R.styleable#TextView_shadowDy 2327 * @attr ref android.R.styleable#TextView_shadowRadius 2328 */ 2329 public void setShadowLayer(float radius, float dx, float dy, int color) { 2330 mTextPaint.setShadowLayer(radius, dx, dy, color); 2331 2332 mShadowRadius = radius; 2333 mShadowDx = dx; 2334 mShadowDy = dy; 2335 2336 invalidate(); 2337 } 2338 2339 /** 2340 * @return the base paint used for the text. Please use this only to 2341 * consult the Paint's properties and not to change them. 2342 */ 2343 public TextPaint getPaint() { 2344 return mTextPaint; 2345 } 2346 2347 /** 2348 * Sets the autolink mask of the text. See {@link 2349 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2350 * possible values. 2351 * 2352 * @attr ref android.R.styleable#TextView_autoLink 2353 */ 2354 @android.view.RemotableViewMethod 2355 public final void setAutoLinkMask(int mask) { 2356 mAutoLinkMask = mask; 2357 } 2358 2359 /** 2360 * Sets whether the movement method will automatically be set to 2361 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2362 * set to nonzero and links are detected in {@link #setText}. 2363 * The default is true. 2364 * 2365 * @attr ref android.R.styleable#TextView_linksClickable 2366 */ 2367 @android.view.RemotableViewMethod 2368 public final void setLinksClickable(boolean whether) { 2369 mLinksClickable = whether; 2370 } 2371 2372 /** 2373 * Returns whether the movement method will automatically be set to 2374 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2375 * set to nonzero and links are detected in {@link #setText}. 2376 * The default is true. 2377 * 2378 * @attr ref android.R.styleable#TextView_linksClickable 2379 */ 2380 public final boolean getLinksClickable() { 2381 return mLinksClickable; 2382 } 2383 2384 /** 2385 * Sets whether the soft input method will be made visible when this 2386 * TextView gets focused. The default is true. 2387 * 2388 * @attr ref android.R.styleable#TextView_softInputShownOnFocus 2389 * @hide 2390 */ 2391 @android.view.RemotableViewMethod 2392 public final void setSoftInputShownOnFocus(boolean show) { 2393 mSoftInputShownOnFocus = show; 2394 } 2395 2396 /** 2397 * Returns whether the soft input method will be made visible when this 2398 * TextView gets focused. The default is true. 2399 * 2400 * @attr ref android.R.styleable#TextView_softInputShownOnFocus 2401 * @hide 2402 */ 2403 public final boolean getSoftInputShownOnFocus() { 2404 return mSoftInputShownOnFocus; 2405 } 2406 2407 /** 2408 * Returns the list of URLSpans attached to the text 2409 * (by {@link Linkify} or otherwise) if any. You can call 2410 * {@link URLSpan#getURL} on them to find where they link to 2411 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2412 * to find the region of the text they are attached to. 2413 */ 2414 public URLSpan[] getUrls() { 2415 if (mText instanceof Spanned) { 2416 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2417 } else { 2418 return new URLSpan[0]; 2419 } 2420 } 2421 2422 /** 2423 * Sets the color of the hint text. 2424 * 2425 * @attr ref android.R.styleable#TextView_textColorHint 2426 */ 2427 @android.view.RemotableViewMethod 2428 public final void setHintTextColor(int color) { 2429 mHintTextColor = ColorStateList.valueOf(color); 2430 updateTextColors(); 2431 } 2432 2433 /** 2434 * Sets the color of the hint text. 2435 * 2436 * @attr ref android.R.styleable#TextView_textColorHint 2437 */ 2438 public final void setHintTextColor(ColorStateList colors) { 2439 mHintTextColor = colors; 2440 updateTextColors(); 2441 } 2442 2443 /** 2444 * <p>Return the color used to paint the hint text.</p> 2445 * 2446 * @return Returns the list of hint text colors. 2447 */ 2448 public final ColorStateList getHintTextColors() { 2449 return mHintTextColor; 2450 } 2451 2452 /** 2453 * <p>Return the current color selected to paint the hint text.</p> 2454 * 2455 * @return Returns the current hint text color. 2456 */ 2457 public final int getCurrentHintTextColor() { 2458 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2459 } 2460 2461 /** 2462 * Sets the color of links in the text. 2463 * 2464 * @attr ref android.R.styleable#TextView_textColorLink 2465 */ 2466 @android.view.RemotableViewMethod 2467 public final void setLinkTextColor(int color) { 2468 mLinkTextColor = ColorStateList.valueOf(color); 2469 updateTextColors(); 2470 } 2471 2472 /** 2473 * Sets the color of links in the text. 2474 * 2475 * @attr ref android.R.styleable#TextView_textColorLink 2476 */ 2477 public final void setLinkTextColor(ColorStateList colors) { 2478 mLinkTextColor = colors; 2479 updateTextColors(); 2480 } 2481 2482 /** 2483 * <p>Returns the color used to paint links in the text.</p> 2484 * 2485 * @return Returns the list of link text colors. 2486 */ 2487 public final ColorStateList getLinkTextColors() { 2488 return mLinkTextColor; 2489 } 2490 2491 /** 2492 * Sets the horizontal alignment of the text and the 2493 * vertical gravity that will be used when there is extra space 2494 * in the TextView beyond what is required for the text itself. 2495 * 2496 * @see android.view.Gravity 2497 * @attr ref android.R.styleable#TextView_gravity 2498 */ 2499 public void setGravity(int gravity) { 2500 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2501 gravity |= Gravity.START; 2502 } 2503 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2504 gravity |= Gravity.TOP; 2505 } 2506 2507 boolean newLayout = false; 2508 2509 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2510 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2511 newLayout = true; 2512 } 2513 2514 if (gravity != mGravity) { 2515 invalidate(); 2516 mLayoutAlignment = null; 2517 } 2518 2519 mGravity = gravity; 2520 2521 if (mLayout != null && newLayout) { 2522 // XXX this is heavy-handed because no actual content changes. 2523 int want = mLayout.getWidth(); 2524 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2525 2526 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2527 mRight - mLeft - getCompoundPaddingLeft() - 2528 getCompoundPaddingRight(), true); 2529 } 2530 } 2531 2532 /** 2533 * Returns the horizontal and vertical alignment of this TextView. 2534 * 2535 * @see android.view.Gravity 2536 * @attr ref android.R.styleable#TextView_gravity 2537 */ 2538 public int getGravity() { 2539 return mGravity; 2540 } 2541 2542 /** 2543 * @return the flags on the Paint being used to display the text. 2544 * @see Paint#getFlags 2545 */ 2546 public int getPaintFlags() { 2547 return mTextPaint.getFlags(); 2548 } 2549 2550 /** 2551 * Sets flags on the Paint being used to display the text and 2552 * reflows the text if they are different from the old flags. 2553 * @see Paint#setFlags 2554 */ 2555 @android.view.RemotableViewMethod 2556 public void setPaintFlags(int flags) { 2557 if (mTextPaint.getFlags() != flags) { 2558 mTextPaint.setFlags(flags); 2559 2560 if (mLayout != null) { 2561 nullLayouts(); 2562 requestLayout(); 2563 invalidate(); 2564 } 2565 } 2566 } 2567 2568 /** 2569 * Sets whether the text should be allowed to be wider than the 2570 * View is. If false, it will be wrapped to the width of the View. 2571 * 2572 * @attr ref android.R.styleable#TextView_scrollHorizontally 2573 */ 2574 public void setHorizontallyScrolling(boolean whether) { 2575 if (mHorizontallyScrolling != whether) { 2576 mHorizontallyScrolling = whether; 2577 2578 if (mLayout != null) { 2579 nullLayouts(); 2580 requestLayout(); 2581 invalidate(); 2582 } 2583 } 2584 } 2585 2586 /** 2587 * Returns whether the text is allowed to be wider than the View is. 2588 * If false, the text will be wrapped to the width of the View. 2589 * 2590 * @attr ref android.R.styleable#TextView_scrollHorizontally 2591 * @hide 2592 */ 2593 public boolean getHorizontallyScrolling() { 2594 return mHorizontallyScrolling; 2595 } 2596 2597 /** 2598 * Makes the TextView at least this many lines tall. 2599 * 2600 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2601 * set this value to 1. 2602 * 2603 * @attr ref android.R.styleable#TextView_minLines 2604 */ 2605 @android.view.RemotableViewMethod 2606 public void setMinLines(int minlines) { 2607 mMinimum = minlines; 2608 mMinMode = LINES; 2609 2610 requestLayout(); 2611 invalidate(); 2612 } 2613 2614 /** 2615 * Makes the TextView at least this many pixels tall. 2616 * 2617 * Setting this value overrides any other (minimum) number of lines setting. 2618 * 2619 * @attr ref android.R.styleable#TextView_minHeight 2620 */ 2621 @android.view.RemotableViewMethod 2622 public void setMinHeight(int minHeight) { 2623 mMinimum = minHeight; 2624 mMinMode = PIXELS; 2625 2626 requestLayout(); 2627 invalidate(); 2628 } 2629 2630 /** 2631 * Makes the TextView at most this many lines tall. 2632 * 2633 * Setting this value overrides any other (maximum) height setting. 2634 * 2635 * @attr ref android.R.styleable#TextView_maxLines 2636 */ 2637 @android.view.RemotableViewMethod 2638 public void setMaxLines(int maxlines) { 2639 mMaximum = maxlines; 2640 mMaxMode = LINES; 2641 2642 requestLayout(); 2643 invalidate(); 2644 } 2645 2646 /** 2647 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2648 * {@link #setMaxLines(int)} method. 2649 * 2650 * Setting this value overrides any other (maximum) number of lines setting. 2651 * 2652 * @attr ref android.R.styleable#TextView_maxHeight 2653 */ 2654 @android.view.RemotableViewMethod 2655 public void setMaxHeight(int maxHeight) { 2656 mMaximum = maxHeight; 2657 mMaxMode = PIXELS; 2658 2659 requestLayout(); 2660 invalidate(); 2661 } 2662 2663 /** 2664 * Makes the TextView exactly this many lines tall. 2665 * 2666 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2667 * height setting. A single line TextView will set this value to 1. 2668 * 2669 * @attr ref android.R.styleable#TextView_lines 2670 */ 2671 @android.view.RemotableViewMethod 2672 public void setLines(int lines) { 2673 mMaximum = mMinimum = lines; 2674 mMaxMode = mMinMode = LINES; 2675 2676 requestLayout(); 2677 invalidate(); 2678 } 2679 2680 /** 2681 * Makes the TextView exactly this many pixels tall. 2682 * You could do the same thing by specifying this number in the 2683 * LayoutParams. 2684 * 2685 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2686 * height setting. 2687 * 2688 * @attr ref android.R.styleable#TextView_height 2689 */ 2690 @android.view.RemotableViewMethod 2691 public void setHeight(int pixels) { 2692 mMaximum = mMinimum = pixels; 2693 mMaxMode = mMinMode = PIXELS; 2694 2695 requestLayout(); 2696 invalidate(); 2697 } 2698 2699 /** 2700 * Makes the TextView at least this many ems wide 2701 * 2702 * @attr ref android.R.styleable#TextView_minEms 2703 */ 2704 @android.view.RemotableViewMethod 2705 public void setMinEms(int minems) { 2706 mMinWidth = minems; 2707 mMinWidthMode = EMS; 2708 2709 requestLayout(); 2710 invalidate(); 2711 } 2712 2713 /** 2714 * Makes the TextView at least this many pixels wide 2715 * 2716 * @attr ref android.R.styleable#TextView_minWidth 2717 */ 2718 @android.view.RemotableViewMethod 2719 public void setMinWidth(int minpixels) { 2720 mMinWidth = minpixels; 2721 mMinWidthMode = PIXELS; 2722 2723 requestLayout(); 2724 invalidate(); 2725 } 2726 2727 /** 2728 * Makes the TextView at most this many ems wide 2729 * 2730 * @attr ref android.R.styleable#TextView_maxEms 2731 */ 2732 @android.view.RemotableViewMethod 2733 public void setMaxEms(int maxems) { 2734 mMaxWidth = maxems; 2735 mMaxWidthMode = EMS; 2736 2737 requestLayout(); 2738 invalidate(); 2739 } 2740 2741 /** 2742 * Makes the TextView at most this many pixels wide 2743 * 2744 * @attr ref android.R.styleable#TextView_maxWidth 2745 */ 2746 @android.view.RemotableViewMethod 2747 public void setMaxWidth(int maxpixels) { 2748 mMaxWidth = maxpixels; 2749 mMaxWidthMode = PIXELS; 2750 2751 requestLayout(); 2752 invalidate(); 2753 } 2754 2755 /** 2756 * Makes the TextView exactly this many ems wide 2757 * 2758 * @attr ref android.R.styleable#TextView_ems 2759 */ 2760 @android.view.RemotableViewMethod 2761 public void setEms(int ems) { 2762 mMaxWidth = mMinWidth = ems; 2763 mMaxWidthMode = mMinWidthMode = EMS; 2764 2765 requestLayout(); 2766 invalidate(); 2767 } 2768 2769 /** 2770 * Makes the TextView exactly this many pixels wide. 2771 * You could do the same thing by specifying this number in the 2772 * LayoutParams. 2773 * 2774 * @attr ref android.R.styleable#TextView_width 2775 */ 2776 @android.view.RemotableViewMethod 2777 public void setWidth(int pixels) { 2778 mMaxWidth = mMinWidth = pixels; 2779 mMaxWidthMode = mMinWidthMode = PIXELS; 2780 2781 requestLayout(); 2782 invalidate(); 2783 } 2784 2785 2786 /** 2787 * Sets line spacing for this TextView. Each line will have its height 2788 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2789 * 2790 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2791 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2792 */ 2793 public void setLineSpacing(float add, float mult) { 2794 if (mSpacingAdd != add || mSpacingMult != mult) { 2795 mSpacingAdd = add; 2796 mSpacingMult = mult; 2797 2798 if (mLayout != null) { 2799 nullLayouts(); 2800 requestLayout(); 2801 invalidate(); 2802 } 2803 } 2804 } 2805 2806 /** 2807 * Convenience method: Append the specified text to the TextView's 2808 * display buffer, upgrading it to BufferType.EDITABLE if it was 2809 * not already editable. 2810 */ 2811 public final void append(CharSequence text) { 2812 append(text, 0, text.length()); 2813 } 2814 2815 /** 2816 * Convenience method: Append the specified text slice to the TextView's 2817 * display buffer, upgrading it to BufferType.EDITABLE if it was 2818 * not already editable. 2819 */ 2820 public void append(CharSequence text, int start, int end) { 2821 if (!(mText instanceof Editable)) { 2822 setText(mText, BufferType.EDITABLE); 2823 } 2824 2825 ((Editable) mText).append(text, start, end); 2826 } 2827 2828 private void updateTextColors() { 2829 boolean inval = false; 2830 int color = mTextColor.getColorForState(getDrawableState(), 0); 2831 if (color != mCurTextColor) { 2832 mCurTextColor = color; 2833 inval = true; 2834 } 2835 if (mLinkTextColor != null) { 2836 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2837 if (color != mTextPaint.linkColor) { 2838 mTextPaint.linkColor = color; 2839 inval = true; 2840 } 2841 } 2842 if (mHintTextColor != null) { 2843 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2844 if (color != mCurHintTextColor && mText.length() == 0) { 2845 mCurHintTextColor = color; 2846 inval = true; 2847 } 2848 } 2849 if (inval) { 2850 invalidate(); 2851 } 2852 } 2853 2854 @Override 2855 protected void drawableStateChanged() { 2856 super.drawableStateChanged(); 2857 if (mTextColor != null && mTextColor.isStateful() 2858 || (mHintTextColor != null && mHintTextColor.isStateful()) 2859 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2860 updateTextColors(); 2861 } 2862 2863 final Drawables dr = mDrawables; 2864 if (dr != null) { 2865 int[] state = getDrawableState(); 2866 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2867 dr.mDrawableTop.setState(state); 2868 } 2869 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2870 dr.mDrawableBottom.setState(state); 2871 } 2872 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2873 dr.mDrawableLeft.setState(state); 2874 } 2875 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2876 dr.mDrawableRight.setState(state); 2877 } 2878 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 2879 dr.mDrawableStart.setState(state); 2880 } 2881 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 2882 dr.mDrawableEnd.setState(state); 2883 } 2884 } 2885 } 2886 2887 /** 2888 * User interface state that is stored by TextView for implementing 2889 * {@link View#onSaveInstanceState}. 2890 */ 2891 public static class SavedState extends BaseSavedState { 2892 int selStart; 2893 int selEnd; 2894 CharSequence text; 2895 boolean frozenWithFocus; 2896 CharSequence error; 2897 2898 SavedState(Parcelable superState) { 2899 super(superState); 2900 } 2901 2902 @Override 2903 public void writeToParcel(Parcel out, int flags) { 2904 super.writeToParcel(out, flags); 2905 out.writeInt(selStart); 2906 out.writeInt(selEnd); 2907 out.writeInt(frozenWithFocus ? 1 : 0); 2908 TextUtils.writeToParcel(text, out, flags); 2909 2910 if (error == null) { 2911 out.writeInt(0); 2912 } else { 2913 out.writeInt(1); 2914 TextUtils.writeToParcel(error, out, flags); 2915 } 2916 } 2917 2918 @Override 2919 public String toString() { 2920 String str = "TextView.SavedState{" 2921 + Integer.toHexString(System.identityHashCode(this)) 2922 + " start=" + selStart + " end=" + selEnd; 2923 if (text != null) { 2924 str += " text=" + text; 2925 } 2926 return str + "}"; 2927 } 2928 2929 @SuppressWarnings("hiding") 2930 public static final Parcelable.Creator<SavedState> CREATOR 2931 = new Parcelable.Creator<SavedState>() { 2932 public SavedState createFromParcel(Parcel in) { 2933 return new SavedState(in); 2934 } 2935 2936 public SavedState[] newArray(int size) { 2937 return new SavedState[size]; 2938 } 2939 }; 2940 2941 private SavedState(Parcel in) { 2942 super(in); 2943 selStart = in.readInt(); 2944 selEnd = in.readInt(); 2945 frozenWithFocus = (in.readInt() != 0); 2946 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2947 2948 if (in.readInt() != 0) { 2949 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2950 } 2951 } 2952 } 2953 2954 @Override 2955 public Parcelable onSaveInstanceState() { 2956 Parcelable superState = super.onSaveInstanceState(); 2957 2958 // Save state if we are forced to 2959 boolean save = mFreezesText; 2960 int start = 0; 2961 int end = 0; 2962 2963 if (mText != null) { 2964 start = getSelectionStart(); 2965 end = getSelectionEnd(); 2966 if (start >= 0 || end >= 0) { 2967 // Or save state if there is a selection 2968 save = true; 2969 } 2970 } 2971 2972 if (save) { 2973 SavedState ss = new SavedState(superState); 2974 // XXX Should also save the current scroll position! 2975 ss.selStart = start; 2976 ss.selEnd = end; 2977 2978 if (mText instanceof Spanned) { 2979 /* 2980 * Calling setText() strips off any ChangeWatchers; 2981 * strip them now to avoid leaking references. 2982 * But do it to a copy so that if there are any 2983 * further changes to the text of this view, it 2984 * won't get into an inconsistent state. 2985 */ 2986 2987 Spannable sp = new SpannableString(mText); 2988 2989 for (ChangeWatcher cw : sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2990 sp.removeSpan(cw); 2991 } 2992 2993 removeMisspelledSpans(sp); 2994 sp.removeSpan(mSuggestionRangeSpan); 2995 2996 ss.text = sp; 2997 } else { 2998 ss.text = mText.toString(); 2999 } 3000 3001 if (isFocused() && start >= 0 && end >= 0) { 3002 ss.frozenWithFocus = true; 3003 } 3004 3005 ss.error = mError; 3006 3007 return ss; 3008 } 3009 3010 return superState; 3011 } 3012 3013 void removeMisspelledSpans(Spannable spannable) { 3014 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 3015 SuggestionSpan.class); 3016 for (int i = 0; i < suggestionSpans.length; i++) { 3017 int flags = suggestionSpans[i].getFlags(); 3018 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 3019 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 3020 spannable.removeSpan(suggestionSpans[i]); 3021 } 3022 } 3023 } 3024 3025 @Override 3026 public void onRestoreInstanceState(Parcelable state) { 3027 if (!(state instanceof SavedState)) { 3028 super.onRestoreInstanceState(state); 3029 return; 3030 } 3031 3032 SavedState ss = (SavedState)state; 3033 super.onRestoreInstanceState(ss.getSuperState()); 3034 3035 // XXX restore buffer type too, as well as lots of other stuff 3036 if (ss.text != null) { 3037 setText(ss.text); 3038 } 3039 3040 if (ss.selStart >= 0 && ss.selEnd >= 0) { 3041 if (mText instanceof Spannable) { 3042 int len = mText.length(); 3043 3044 if (ss.selStart > len || ss.selEnd > len) { 3045 String restored = ""; 3046 3047 if (ss.text != null) { 3048 restored = "(restored) "; 3049 } 3050 3051 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 3052 "/" + ss.selEnd + " out of range for " + restored + 3053 "text " + mText); 3054 } else { 3055 Selection.setSelection((Spannable) mText, ss.selStart, 3056 ss.selEnd); 3057 3058 if (ss.frozenWithFocus) { 3059 mFrozenWithFocus = true; 3060 } 3061 } 3062 } 3063 } 3064 3065 if (ss.error != null) { 3066 final CharSequence error = ss.error; 3067 // Display the error later, after the first layout pass 3068 post(new Runnable() { 3069 public void run() { 3070 setError(error); 3071 } 3072 }); 3073 } 3074 } 3075 3076 /** 3077 * Control whether this text view saves its entire text contents when 3078 * freezing to an icicle, in addition to dynamic state such as cursor 3079 * position. By default this is false, not saving the text. Set to true 3080 * if the text in the text view is not being saved somewhere else in 3081 * persistent storage (such as in a content provider) so that if the 3082 * view is later thawed the user will not lose their data. 3083 * 3084 * @param freezesText Controls whether a frozen icicle should include the 3085 * entire text data: true to include it, false to not. 3086 * 3087 * @attr ref android.R.styleable#TextView_freezesText 3088 */ 3089 @android.view.RemotableViewMethod 3090 public void setFreezesText(boolean freezesText) { 3091 mFreezesText = freezesText; 3092 } 3093 3094 /** 3095 * Return whether this text view is including its entire text contents 3096 * in frozen icicles. 3097 * 3098 * @return Returns true if text is included, false if it isn't. 3099 * 3100 * @see #setFreezesText 3101 */ 3102 public boolean getFreezesText() { 3103 return mFreezesText; 3104 } 3105 3106 /////////////////////////////////////////////////////////////////////////// 3107 3108 /** 3109 * Sets the Factory used to create new Editables. 3110 */ 3111 public final void setEditableFactory(Editable.Factory factory) { 3112 mEditableFactory = factory; 3113 setText(mText); 3114 } 3115 3116 /** 3117 * Sets the Factory used to create new Spannables. 3118 */ 3119 public final void setSpannableFactory(Spannable.Factory factory) { 3120 mSpannableFactory = factory; 3121 setText(mText); 3122 } 3123 3124 /** 3125 * Sets the string value of the TextView. TextView <em>does not</em> accept 3126 * HTML-like formatting, which you can do with text strings in XML resource files. 3127 * To style your strings, attach android.text.style.* objects to a 3128 * {@link android.text.SpannableString SpannableString}, or see the 3129 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3130 * Available Resource Types</a> documentation for an example of setting 3131 * formatted text in the XML resource file. 3132 * 3133 * @attr ref android.R.styleable#TextView_text 3134 */ 3135 @android.view.RemotableViewMethod 3136 public final void setText(CharSequence text) { 3137 setText(text, mBufferType); 3138 } 3139 3140 /** 3141 * Like {@link #setText(CharSequence)}, 3142 * except that the cursor position (if any) is retained in the new text. 3143 * 3144 * @param text The new text to place in the text view. 3145 * 3146 * @see #setText(CharSequence) 3147 */ 3148 @android.view.RemotableViewMethod 3149 public final void setTextKeepState(CharSequence text) { 3150 setTextKeepState(text, mBufferType); 3151 } 3152 3153 /** 3154 * Sets the text that this TextView is to display (see 3155 * {@link #setText(CharSequence)}) and also sets whether it is stored 3156 * in a styleable/spannable buffer and whether it is editable. 3157 * 3158 * @attr ref android.R.styleable#TextView_text 3159 * @attr ref android.R.styleable#TextView_bufferType 3160 */ 3161 public void setText(CharSequence text, BufferType type) { 3162 setText(text, type, true, 0); 3163 3164 if (mCharWrapper != null) { 3165 mCharWrapper.mChars = null; 3166 } 3167 } 3168 3169 private void setText(CharSequence text, BufferType type, 3170 boolean notifyBefore, int oldlen) { 3171 if (text == null) { 3172 text = ""; 3173 } 3174 3175 // If suggestions are not enabled, remove the suggestion spans from the text 3176 if (!isSuggestionsEnabled()) { 3177 text = removeSuggestionSpans(text); 3178 } 3179 3180 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3181 3182 if (text instanceof Spanned && 3183 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3184 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3185 setHorizontalFadingEdgeEnabled(true); 3186 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3187 } else { 3188 setHorizontalFadingEdgeEnabled(false); 3189 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3190 } 3191 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3192 } 3193 3194 int n = mFilters.length; 3195 for (int i = 0; i < n; i++) { 3196 CharSequence out = mFilters[i].filter(text, 0, text.length(), 3197 EMPTY_SPANNED, 0, 0); 3198 if (out != null) { 3199 text = out; 3200 } 3201 } 3202 3203 if (notifyBefore) { 3204 if (mText != null) { 3205 oldlen = mText.length(); 3206 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3207 } else { 3208 sendBeforeTextChanged("", 0, 0, text.length()); 3209 } 3210 } 3211 3212 boolean needEditableForNotification = false; 3213 3214 if (mListeners != null && mListeners.size() != 0) { 3215 needEditableForNotification = true; 3216 } 3217 3218 if (type == BufferType.EDITABLE || mInput != null || needEditableForNotification) { 3219 Editable t = mEditableFactory.newEditable(text); 3220 text = t; 3221 setFilters(t, mFilters); 3222 InputMethodManager imm = InputMethodManager.peekInstance(); 3223 if (imm != null) imm.restartInput(this); 3224 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3225 text = mSpannableFactory.newSpannable(text); 3226 } else if (!(text instanceof CharWrapper)) { 3227 text = TextUtils.stringOrSpannedString(text); 3228 } 3229 3230 if (mAutoLinkMask != 0) { 3231 Spannable s2; 3232 3233 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3234 s2 = (Spannable) text; 3235 } else { 3236 s2 = mSpannableFactory.newSpannable(text); 3237 } 3238 3239 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3240 text = s2; 3241 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3242 3243 /* 3244 * We must go ahead and set the text before changing the 3245 * movement method, because setMovementMethod() may call 3246 * setText() again to try to upgrade the buffer type. 3247 */ 3248 mText = text; 3249 3250 // Do not change the movement method for text that support text selection as it 3251 // would prevent an arbitrary cursor displacement. 3252 if (mLinksClickable && !textCanBeSelected()) { 3253 setMovementMethod(LinkMovementMethod.getInstance()); 3254 } 3255 } 3256 } 3257 3258 mBufferType = type; 3259 mText = text; 3260 3261 if (mTransformation == null) { 3262 mTransformed = text; 3263 } else { 3264 mTransformed = mTransformation.getTransformation(text, this); 3265 } 3266 3267 final int textLength = text.length(); 3268 3269 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3270 Spannable sp = (Spannable) text; 3271 3272 // Remove any ChangeWatchers that might have come 3273 // from other TextViews. 3274 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3275 final int count = watchers.length; 3276 for (int i = 0; i < count; i++) 3277 sp.removeSpan(watchers[i]); 3278 3279 if (mChangeWatcher == null) 3280 mChangeWatcher = new ChangeWatcher(); 3281 3282 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3283 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3284 3285 if (mInput != null) { 3286 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3287 } 3288 3289 if (mTransformation != null) { 3290 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3291 } 3292 3293 if (mMovement != null) { 3294 mMovement.initialize(this, (Spannable) text); 3295 3296 /* 3297 * Initializing the movement method will have set the 3298 * selection, so reset mSelectionMoved to keep that from 3299 * interfering with the normal on-focus selection-setting. 3300 */ 3301 mSelectionMoved = false; 3302 } 3303 } 3304 3305 if (mLayout != null) { 3306 checkForRelayout(); 3307 } 3308 3309 sendOnTextChanged(text, 0, oldlen, textLength); 3310 onTextChanged(text, 0, oldlen, textLength); 3311 3312 if (needEditableForNotification) { 3313 sendAfterTextChanged((Editable) text); 3314 } 3315 3316 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3317 prepareCursorControllers(); 3318 } 3319 3320 /** 3321 * Sets the TextView to display the specified slice of the specified 3322 * char array. You must promise that you will not change the contents 3323 * of the array except for right before another call to setText(), 3324 * since the TextView has no way to know that the text 3325 * has changed and that it needs to invalidate and re-layout. 3326 */ 3327 public final void setText(char[] text, int start, int len) { 3328 int oldlen = 0; 3329 3330 if (start < 0 || len < 0 || start + len > text.length) { 3331 throw new IndexOutOfBoundsException(start + ", " + len); 3332 } 3333 3334 /* 3335 * We must do the before-notification here ourselves because if 3336 * the old text is a CharWrapper we destroy it before calling 3337 * into the normal path. 3338 */ 3339 if (mText != null) { 3340 oldlen = mText.length(); 3341 sendBeforeTextChanged(mText, 0, oldlen, len); 3342 } else { 3343 sendBeforeTextChanged("", 0, 0, len); 3344 } 3345 3346 if (mCharWrapper == null) { 3347 mCharWrapper = new CharWrapper(text, start, len); 3348 } else { 3349 mCharWrapper.set(text, start, len); 3350 } 3351 3352 setText(mCharWrapper, mBufferType, false, oldlen); 3353 } 3354 3355 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 3356 private char[] mChars; 3357 private int mStart, mLength; 3358 3359 public CharWrapper(char[] chars, int start, int len) { 3360 mChars = chars; 3361 mStart = start; 3362 mLength = len; 3363 } 3364 3365 /* package */ void set(char[] chars, int start, int len) { 3366 mChars = chars; 3367 mStart = start; 3368 mLength = len; 3369 } 3370 3371 public int length() { 3372 return mLength; 3373 } 3374 3375 public char charAt(int off) { 3376 return mChars[off + mStart]; 3377 } 3378 3379 @Override 3380 public String toString() { 3381 return new String(mChars, mStart, mLength); 3382 } 3383 3384 public CharSequence subSequence(int start, int end) { 3385 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3386 throw new IndexOutOfBoundsException(start + ", " + end); 3387 } 3388 3389 return new String(mChars, start + mStart, end - start); 3390 } 3391 3392 public void getChars(int start, int end, char[] buf, int off) { 3393 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3394 throw new IndexOutOfBoundsException(start + ", " + end); 3395 } 3396 3397 System.arraycopy(mChars, start + mStart, buf, off, end - start); 3398 } 3399 3400 public void drawText(Canvas c, int start, int end, 3401 float x, float y, Paint p) { 3402 c.drawText(mChars, start + mStart, end - start, x, y, p); 3403 } 3404 3405 public void drawTextRun(Canvas c, int start, int end, 3406 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 3407 int count = end - start; 3408 int contextCount = contextEnd - contextStart; 3409 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 3410 contextCount, x, y, flags, p); 3411 } 3412 3413 public float measureText(int start, int end, Paint p) { 3414 return p.measureText(mChars, start + mStart, end - start); 3415 } 3416 3417 public int getTextWidths(int start, int end, float[] widths, Paint p) { 3418 return p.getTextWidths(mChars, start + mStart, end - start, widths); 3419 } 3420 3421 public float getTextRunAdvances(int start, int end, int contextStart, 3422 int contextEnd, int flags, float[] advances, int advancesIndex, 3423 Paint p) { 3424 int count = end - start; 3425 int contextCount = contextEnd - contextStart; 3426 return p.getTextRunAdvances(mChars, start + mStart, count, 3427 contextStart + mStart, contextCount, flags, advances, 3428 advancesIndex); 3429 } 3430 3431 public float getTextRunAdvances(int start, int end, int contextStart, 3432 int contextEnd, int flags, float[] advances, int advancesIndex, 3433 Paint p, int reserved) { 3434 int count = end - start; 3435 int contextCount = contextEnd - contextStart; 3436 return p.getTextRunAdvances(mChars, start + mStart, count, 3437 contextStart + mStart, contextCount, flags, advances, 3438 advancesIndex, reserved); 3439 } 3440 3441 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 3442 int offset, int cursorOpt, Paint p) { 3443 int contextCount = contextEnd - contextStart; 3444 return p.getTextRunCursor(mChars, contextStart + mStart, 3445 contextCount, flags, offset + mStart, cursorOpt); 3446 } 3447 } 3448 3449 /** 3450 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3451 * except that the cursor position (if any) is retained in the new text. 3452 * 3453 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3454 */ 3455 public final void setTextKeepState(CharSequence text, BufferType type) { 3456 int start = getSelectionStart(); 3457 int end = getSelectionEnd(); 3458 int len = text.length(); 3459 3460 setText(text, type); 3461 3462 if (start >= 0 || end >= 0) { 3463 if (mText instanceof Spannable) { 3464 Selection.setSelection((Spannable) mText, 3465 Math.max(0, Math.min(start, len)), 3466 Math.max(0, Math.min(end, len))); 3467 } 3468 } 3469 } 3470 3471 @android.view.RemotableViewMethod 3472 public final void setText(int resid) { 3473 setText(getContext().getResources().getText(resid)); 3474 } 3475 3476 public final void setText(int resid, BufferType type) { 3477 setText(getContext().getResources().getText(resid), type); 3478 } 3479 3480 /** 3481 * Sets the text to be displayed when the text of the TextView is empty. 3482 * Null means to use the normal empty text. The hint does not currently 3483 * participate in determining the size of the view. 3484 * 3485 * @attr ref android.R.styleable#TextView_hint 3486 */ 3487 @android.view.RemotableViewMethod 3488 public final void setHint(CharSequence hint) { 3489 mHint = TextUtils.stringOrSpannedString(hint); 3490 3491 if (mLayout != null) { 3492 checkForRelayout(); 3493 } 3494 3495 if (mText.length() == 0) { 3496 invalidate(); 3497 } 3498 } 3499 3500 /** 3501 * Sets the text to be displayed when the text of the TextView is empty, 3502 * from a resource. 3503 * 3504 * @attr ref android.R.styleable#TextView_hint 3505 */ 3506 @android.view.RemotableViewMethod 3507 public final void setHint(int resid) { 3508 setHint(getContext().getResources().getText(resid)); 3509 } 3510 3511 /** 3512 * Returns the hint that is displayed when the text of the TextView 3513 * is empty. 3514 * 3515 * @attr ref android.R.styleable#TextView_hint 3516 */ 3517 @ViewDebug.CapturedViewProperty 3518 public CharSequence getHint() { 3519 return mHint; 3520 } 3521 3522 private static boolean isMultilineInputType(int type) { 3523 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3524 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3525 } 3526 3527 /** 3528 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3529 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3530 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3531 * then a soft keyboard will not be displayed for this text view. 3532 * 3533 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3534 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3535 * type. 3536 * 3537 * @see #getInputType() 3538 * @see #setRawInputType(int) 3539 * @see android.text.InputType 3540 * @attr ref android.R.styleable#TextView_inputType 3541 */ 3542 public void setInputType(int type) { 3543 final boolean wasPassword = isPasswordInputType(mInputType); 3544 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3545 setInputType(type, false); 3546 final boolean isPassword = isPasswordInputType(type); 3547 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3548 boolean forceUpdate = false; 3549 if (isPassword) { 3550 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3551 setTypefaceByIndex(MONOSPACE, 0); 3552 } else if (isVisiblePassword) { 3553 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3554 forceUpdate = true; 3555 } 3556 setTypefaceByIndex(MONOSPACE, 0); 3557 } else if (wasPassword || wasVisiblePassword) { 3558 // not in password mode, clean up typeface and transformation 3559 setTypefaceByIndex(-1, -1); 3560 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3561 forceUpdate = true; 3562 } 3563 } 3564 3565 boolean singleLine = !isMultilineInputType(type); 3566 3567 // We need to update the single line mode if it has changed or we 3568 // were previously in password mode. 3569 if (mSingleLine != singleLine || forceUpdate) { 3570 // Change single line mode, but only change the transformation if 3571 // we are not in password mode. 3572 applySingleLine(singleLine, !isPassword, true); 3573 } 3574 3575 if (!isSuggestionsEnabled()) { 3576 mText = removeSuggestionSpans(mText); 3577 } 3578 3579 InputMethodManager imm = InputMethodManager.peekInstance(); 3580 if (imm != null) imm.restartInput(this); 3581 } 3582 3583 /** 3584 * It would be better to rely on the input type for everything. A password inputType should have 3585 * a password transformation. We should hence use isPasswordInputType instead of this method. 3586 * 3587 * We should: 3588 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3589 * would install the correct transformation). 3590 * - Refuse the installation of a non-password transformation in setTransformation if the input 3591 * type is password. 3592 * 3593 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3594 * is useful since it matches what the user can see (obfuscated text or not). 3595 * 3596 * @return true if the current transformation method is of the password type. 3597 */ 3598 private boolean hasPasswordTransformationMethod() { 3599 return mTransformation instanceof PasswordTransformationMethod; 3600 } 3601 3602 private static boolean isPasswordInputType(int inputType) { 3603 final int variation = 3604 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3605 return variation 3606 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3607 || variation 3608 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3609 || variation 3610 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3611 } 3612 3613 private static boolean isVisiblePasswordInputType(int inputType) { 3614 final int variation = 3615 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3616 return variation 3617 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3618 } 3619 3620 /** 3621 * Directly change the content type integer of the text view, without 3622 * modifying any other state. 3623 * @see #setInputType(int) 3624 * @see android.text.InputType 3625 * @attr ref android.R.styleable#TextView_inputType 3626 */ 3627 public void setRawInputType(int type) { 3628 mInputType = type; 3629 } 3630 3631 private void setInputType(int type, boolean direct) { 3632 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3633 KeyListener input; 3634 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3635 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3636 TextKeyListener.Capitalize cap; 3637 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3638 cap = TextKeyListener.Capitalize.CHARACTERS; 3639 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3640 cap = TextKeyListener.Capitalize.WORDS; 3641 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3642 cap = TextKeyListener.Capitalize.SENTENCES; 3643 } else { 3644 cap = TextKeyListener.Capitalize.NONE; 3645 } 3646 input = TextKeyListener.getInstance(autotext, cap); 3647 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3648 input = DigitsKeyListener.getInstance( 3649 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3650 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3651 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3652 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3653 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3654 input = DateKeyListener.getInstance(); 3655 break; 3656 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3657 input = TimeKeyListener.getInstance(); 3658 break; 3659 default: 3660 input = DateTimeKeyListener.getInstance(); 3661 break; 3662 } 3663 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3664 input = DialerKeyListener.getInstance(); 3665 } else { 3666 input = TextKeyListener.getInstance(); 3667 } 3668 setRawInputType(type); 3669 if (direct) mInput = input; 3670 else { 3671 setKeyListenerOnly(input); 3672 } 3673 } 3674 3675 /** 3676 * Get the type of the content. 3677 * 3678 * @see #setInputType(int) 3679 * @see android.text.InputType 3680 */ 3681 public int getInputType() { 3682 return mInputType; 3683 } 3684 3685 /** 3686 * Change the editor type integer associated with the text view, which 3687 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3688 * has focus. 3689 * @see #getImeOptions 3690 * @see android.view.inputmethod.EditorInfo 3691 * @attr ref android.R.styleable#TextView_imeOptions 3692 */ 3693 public void setImeOptions(int imeOptions) { 3694 if (mInputContentType == null) { 3695 mInputContentType = new InputContentType(); 3696 } 3697 mInputContentType.imeOptions = imeOptions; 3698 } 3699 3700 /** 3701 * Get the type of the IME editor. 3702 * 3703 * @see #setImeOptions(int) 3704 * @see android.view.inputmethod.EditorInfo 3705 */ 3706 public int getImeOptions() { 3707 return mInputContentType != null 3708 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3709 } 3710 3711 /** 3712 * Change the custom IME action associated with the text view, which 3713 * will be reported to an IME with {@link EditorInfo#actionLabel} 3714 * and {@link EditorInfo#actionId} when it has focus. 3715 * @see #getImeActionLabel 3716 * @see #getImeActionId 3717 * @see android.view.inputmethod.EditorInfo 3718 * @attr ref android.R.styleable#TextView_imeActionLabel 3719 * @attr ref android.R.styleable#TextView_imeActionId 3720 */ 3721 public void setImeActionLabel(CharSequence label, int actionId) { 3722 if (mInputContentType == null) { 3723 mInputContentType = new InputContentType(); 3724 } 3725 mInputContentType.imeActionLabel = label; 3726 mInputContentType.imeActionId = actionId; 3727 } 3728 3729 /** 3730 * Get the IME action label previous set with {@link #setImeActionLabel}. 3731 * 3732 * @see #setImeActionLabel 3733 * @see android.view.inputmethod.EditorInfo 3734 */ 3735 public CharSequence getImeActionLabel() { 3736 return mInputContentType != null 3737 ? mInputContentType.imeActionLabel : null; 3738 } 3739 3740 /** 3741 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3742 * 3743 * @see #setImeActionLabel 3744 * @see android.view.inputmethod.EditorInfo 3745 */ 3746 public int getImeActionId() { 3747 return mInputContentType != null 3748 ? mInputContentType.imeActionId : 0; 3749 } 3750 3751 /** 3752 * Set a special listener to be called when an action is performed 3753 * on the text view. This will be called when the enter key is pressed, 3754 * or when an action supplied to the IME is selected by the user. Setting 3755 * this means that the normal hard key event will not insert a newline 3756 * into the text view, even if it is multi-line; holding down the ALT 3757 * modifier will, however, allow the user to insert a newline character. 3758 */ 3759 public void setOnEditorActionListener(OnEditorActionListener l) { 3760 if (mInputContentType == null) { 3761 mInputContentType = new InputContentType(); 3762 } 3763 mInputContentType.onEditorActionListener = l; 3764 } 3765 3766 /** 3767 * Called when an attached input method calls 3768 * {@link InputConnection#performEditorAction(int) 3769 * InputConnection.performEditorAction()} 3770 * for this text view. The default implementation will call your action 3771 * listener supplied to {@link #setOnEditorActionListener}, or perform 3772 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3773 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3774 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3775 * EditorInfo.IME_ACTION_DONE}. 3776 * 3777 * <p>For backwards compatibility, if no IME options have been set and the 3778 * text view would not normally advance focus on enter, then 3779 * the NEXT and DONE actions received here will be turned into an enter 3780 * key down/up pair to go through the normal key handling. 3781 * 3782 * @param actionCode The code of the action being performed. 3783 * 3784 * @see #setOnEditorActionListener 3785 */ 3786 public void onEditorAction(int actionCode) { 3787 final InputContentType ict = mInputContentType; 3788 if (ict != null) { 3789 if (ict.onEditorActionListener != null) { 3790 if (ict.onEditorActionListener.onEditorAction(this, 3791 actionCode, null)) { 3792 return; 3793 } 3794 } 3795 3796 // This is the handling for some default action. 3797 // Note that for backwards compatibility we don't do this 3798 // default handling if explicit ime options have not been given, 3799 // instead turning this into the normal enter key codes that an 3800 // app may be expecting. 3801 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3802 View v = focusSearch(FOCUS_FORWARD); 3803 if (v != null) { 3804 if (!v.requestFocus(FOCUS_FORWARD)) { 3805 throw new IllegalStateException("focus search returned a view " + 3806 "that wasn't able to take focus!"); 3807 } 3808 } 3809 return; 3810 3811 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3812 View v = focusSearch(FOCUS_BACKWARD); 3813 if (v != null) { 3814 if (!v.requestFocus(FOCUS_BACKWARD)) { 3815 throw new IllegalStateException("focus search returned a view " + 3816 "that wasn't able to take focus!"); 3817 } 3818 } 3819 return; 3820 3821 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3822 InputMethodManager imm = InputMethodManager.peekInstance(); 3823 if (imm != null && imm.isActive(this)) { 3824 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3825 } 3826 return; 3827 } 3828 } 3829 3830 Handler h = getHandler(); 3831 if (h != null) { 3832 long eventTime = SystemClock.uptimeMillis(); 3833 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3834 new KeyEvent(eventTime, eventTime, 3835 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3836 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3837 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3838 | KeyEvent.FLAG_EDITOR_ACTION))); 3839 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3840 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3841 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3842 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3843 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3844 | KeyEvent.FLAG_EDITOR_ACTION))); 3845 } 3846 } 3847 3848 /** 3849 * Set the private content type of the text, which is the 3850 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3851 * field that will be filled in when creating an input connection. 3852 * 3853 * @see #getPrivateImeOptions() 3854 * @see EditorInfo#privateImeOptions 3855 * @attr ref android.R.styleable#TextView_privateImeOptions 3856 */ 3857 public void setPrivateImeOptions(String type) { 3858 if (mInputContentType == null) mInputContentType = new InputContentType(); 3859 mInputContentType.privateImeOptions = type; 3860 } 3861 3862 /** 3863 * Get the private type of the content. 3864 * 3865 * @see #setPrivateImeOptions(String) 3866 * @see EditorInfo#privateImeOptions 3867 */ 3868 public String getPrivateImeOptions() { 3869 return mInputContentType != null 3870 ? mInputContentType.privateImeOptions : null; 3871 } 3872 3873 /** 3874 * Set the extra input data of the text, which is the 3875 * {@link EditorInfo#extras TextBoxAttribute.extras} 3876 * Bundle that will be filled in when creating an input connection. The 3877 * given integer is the resource ID of an XML resource holding an 3878 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3879 * 3880 * @see #getInputExtras(boolean) 3881 * @see EditorInfo#extras 3882 * @attr ref android.R.styleable#TextView_editorExtras 3883 */ 3884 public void setInputExtras(int xmlResId) 3885 throws XmlPullParserException, IOException { 3886 XmlResourceParser parser = getResources().getXml(xmlResId); 3887 if (mInputContentType == null) mInputContentType = new InputContentType(); 3888 mInputContentType.extras = new Bundle(); 3889 getResources().parseBundleExtras(parser, mInputContentType.extras); 3890 } 3891 3892 /** 3893 * Retrieve the input extras currently associated with the text view, which 3894 * can be viewed as well as modified. 3895 * 3896 * @param create If true, the extras will be created if they don't already 3897 * exist. Otherwise, null will be returned if none have been created. 3898 * @see #setInputExtras(int) 3899 * @see EditorInfo#extras 3900 * @attr ref android.R.styleable#TextView_editorExtras 3901 */ 3902 public Bundle getInputExtras(boolean create) { 3903 if (mInputContentType == null) { 3904 if (!create) return null; 3905 mInputContentType = new InputContentType(); 3906 } 3907 if (mInputContentType.extras == null) { 3908 if (!create) return null; 3909 mInputContentType.extras = new Bundle(); 3910 } 3911 return mInputContentType.extras; 3912 } 3913 3914 /** 3915 * Returns the error message that was set to be displayed with 3916 * {@link #setError}, or <code>null</code> if no error was set 3917 * or if it the error was cleared by the widget after user input. 3918 */ 3919 public CharSequence getError() { 3920 return mError; 3921 } 3922 3923 /** 3924 * Sets the right-hand compound drawable of the TextView to the "error" 3925 * icon and sets an error message that will be displayed in a popup when 3926 * the TextView has focus. The icon and error message will be reset to 3927 * null when any key events cause changes to the TextView's text. If the 3928 * <code>error</code> is <code>null</code>, the error message and icon 3929 * will be cleared. 3930 */ 3931 @android.view.RemotableViewMethod 3932 public void setError(CharSequence error) { 3933 if (error == null) { 3934 setError(null, null); 3935 } else { 3936 Drawable dr = getContext().getResources(). 3937 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3938 3939 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3940 setError(error, dr); 3941 } 3942 } 3943 3944 /** 3945 * Sets the right-hand compound drawable of the TextView to the specified 3946 * icon and sets an error message that will be displayed in a popup when 3947 * the TextView has focus. The icon and error message will be reset to 3948 * null when any key events cause changes to the TextView's text. The 3949 * drawable must already have had {@link Drawable#setBounds} set on it. 3950 * If the <code>error</code> is <code>null</code>, the error message will 3951 * be cleared (and you should provide a <code>null</code> icon as well). 3952 */ 3953 public void setError(CharSequence error, Drawable icon) { 3954 error = TextUtils.stringOrSpannedString(error); 3955 3956 mError = error; 3957 mErrorWasChanged = true; 3958 final Drawables dr = mDrawables; 3959 if (dr != null) { 3960 switch (getResolvedLayoutDirection()) { 3961 default: 3962 case LAYOUT_DIRECTION_LTR: 3963 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 3964 dr.mDrawableBottom); 3965 break; 3966 case LAYOUT_DIRECTION_RTL: 3967 setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 3968 dr.mDrawableBottom); 3969 break; 3970 } 3971 } else { 3972 setCompoundDrawables(null, null, icon, null); 3973 } 3974 3975 if (error == null) { 3976 if (mPopup != null) { 3977 if (mPopup.isShowing()) { 3978 mPopup.dismiss(); 3979 } 3980 3981 mPopup = null; 3982 } 3983 } else { 3984 if (isFocused()) { 3985 showError(); 3986 } 3987 } 3988 } 3989 3990 private void showError() { 3991 if (getWindowToken() == null) { 3992 mShowErrorAfterAttach = true; 3993 return; 3994 } 3995 3996 if (mPopup == null) { 3997 LayoutInflater inflater = LayoutInflater.from(getContext()); 3998 final TextView err = (TextView) inflater.inflate( 3999 com.android.internal.R.layout.textview_hint, null); 4000 4001 final float scale = getResources().getDisplayMetrics().density; 4002 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 4003 mPopup.setFocusable(false); 4004 // The user is entering text, so the input method is needed. We 4005 // don't want the popup to be displayed on top of it. 4006 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 4007 } 4008 4009 TextView tv = (TextView) mPopup.getContentView(); 4010 chooseSize(mPopup, mError, tv); 4011 tv.setText(mError); 4012 4013 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 4014 mPopup.fixDirection(mPopup.isAboveAnchor()); 4015 } 4016 4017 private static class ErrorPopup extends PopupWindow { 4018 private boolean mAbove = false; 4019 private final TextView mView; 4020 private int mPopupInlineErrorBackgroundId = 0; 4021 private int mPopupInlineErrorAboveBackgroundId = 0; 4022 4023 ErrorPopup(TextView v, int width, int height) { 4024 super(v, width, height); 4025 mView = v; 4026 // Make sure the TextView has a background set as it will be used the first time it is 4027 // shown and positionned. Initialized with below background, which should have 4028 // dimensions identical to the above version for this to work (and is more likely). 4029 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 4030 com.android.internal.R.styleable.Theme_errorMessageBackground); 4031 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 4032 } 4033 4034 void fixDirection(boolean above) { 4035 mAbove = above; 4036 4037 if (above) { 4038 mPopupInlineErrorAboveBackgroundId = 4039 getResourceId(mPopupInlineErrorAboveBackgroundId, 4040 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 4041 } else { 4042 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 4043 com.android.internal.R.styleable.Theme_errorMessageBackground); 4044 } 4045 4046 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 4047 mPopupInlineErrorBackgroundId); 4048 } 4049 4050 private int getResourceId(int currentId, int index) { 4051 if (currentId == 0) { 4052 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 4053 R.styleable.Theme); 4054 currentId = styledAttributes.getResourceId(index, 0); 4055 styledAttributes.recycle(); 4056 } 4057 return currentId; 4058 } 4059 4060 @Override 4061 public void update(int x, int y, int w, int h, boolean force) { 4062 super.update(x, y, w, h, force); 4063 4064 boolean above = isAboveAnchor(); 4065 if (above != mAbove) { 4066 fixDirection(above); 4067 } 4068 } 4069 } 4070 4071 /** 4072 * Returns the Y offset to make the pointy top of the error point 4073 * at the middle of the error icon. 4074 */ 4075 private int getErrorX() { 4076 /* 4077 * The "25" is the distance between the point and the right edge 4078 * of the background 4079 */ 4080 final float scale = getResources().getDisplayMetrics().density; 4081 4082 final Drawables dr = mDrawables; 4083 return getWidth() - mPopup.getWidth() - getPaddingRight() - 4084 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 4085 } 4086 4087 /** 4088 * Returns the Y offset to make the pointy top of the error point 4089 * at the bottom of the error icon. 4090 */ 4091 private int getErrorY() { 4092 /* 4093 * Compound, not extended, because the icon is not clipped 4094 * if the text height is smaller. 4095 */ 4096 final int compoundPaddingTop = getCompoundPaddingTop(); 4097 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 4098 4099 final Drawables dr = mDrawables; 4100 int icontop = compoundPaddingTop + 4101 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 4102 4103 /* 4104 * The "2" is the distance between the point and the top edge 4105 * of the background. 4106 */ 4107 final float scale = getResources().getDisplayMetrics().density; 4108 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 4109 (int) (2 * scale + 0.5f); 4110 } 4111 4112 private void hideError() { 4113 if (mPopup != null) { 4114 if (mPopup.isShowing()) { 4115 mPopup.dismiss(); 4116 } 4117 } 4118 4119 mShowErrorAfterAttach = false; 4120 } 4121 4122 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 4123 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 4124 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 4125 4126 int defaultWidthInPixels = getResources().getDimensionPixelSize( 4127 com.android.internal.R.dimen.textview_error_popup_default_width); 4128 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 4129 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 4130 float max = 0; 4131 for (int i = 0; i < l.getLineCount(); i++) { 4132 max = Math.max(max, l.getLineWidth(i)); 4133 } 4134 4135 /* 4136 * Now set the popup size to be big enough for the text plus the border capped 4137 * to DEFAULT_MAX_POPUP_WIDTH 4138 */ 4139 pop.setWidth(wid + (int) Math.ceil(max)); 4140 pop.setHeight(ht + l.getHeight()); 4141 } 4142 4143 4144 @Override 4145 protected boolean setFrame(int l, int t, int r, int b) { 4146 boolean result = super.setFrame(l, t, r, b); 4147 4148 if (mPopup != null) { 4149 TextView tv = (TextView) mPopup.getContentView(); 4150 chooseSize(mPopup, mError, tv); 4151 mPopup.update(this, getErrorX(), getErrorY(), 4152 mPopup.getWidth(), mPopup.getHeight()); 4153 } 4154 4155 restartMarqueeIfNeeded(); 4156 4157 return result; 4158 } 4159 4160 private void restartMarqueeIfNeeded() { 4161 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4162 mRestartMarquee = false; 4163 startMarquee(); 4164 } 4165 } 4166 4167 /** 4168 * Sets the list of input filters that will be used if the buffer is 4169 * Editable. Has no effect otherwise. 4170 * 4171 * @attr ref android.R.styleable#TextView_maxLength 4172 */ 4173 public void setFilters(InputFilter[] filters) { 4174 if (filters == null) { 4175 throw new IllegalArgumentException(); 4176 } 4177 4178 mFilters = filters; 4179 4180 if (mText instanceof Editable) { 4181 setFilters((Editable) mText, filters); 4182 } 4183 } 4184 4185 /** 4186 * Sets the list of input filters on the specified Editable, 4187 * and includes mInput in the list if it is an InputFilter. 4188 */ 4189 private void setFilters(Editable e, InputFilter[] filters) { 4190 if (mInput instanceof InputFilter) { 4191 InputFilter[] nf = new InputFilter[filters.length + 1]; 4192 4193 System.arraycopy(filters, 0, nf, 0, filters.length); 4194 nf[filters.length] = (InputFilter) mInput; 4195 4196 e.setFilters(nf); 4197 } else { 4198 e.setFilters(filters); 4199 } 4200 } 4201 4202 /** 4203 * Returns the current list of input filters. 4204 */ 4205 public InputFilter[] getFilters() { 4206 return mFilters; 4207 } 4208 4209 ///////////////////////////////////////////////////////////////////////// 4210 4211 private int getVerticalOffset(boolean forceNormal) { 4212 int voffset = 0; 4213 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4214 4215 Layout l = mLayout; 4216 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4217 l = mHintLayout; 4218 } 4219 4220 if (gravity != Gravity.TOP) { 4221 int boxht; 4222 4223 if (l == mHintLayout) { 4224 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4225 getCompoundPaddingBottom(); 4226 } else { 4227 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4228 getExtendedPaddingBottom(); 4229 } 4230 int textht = l.getHeight(); 4231 4232 if (textht < boxht) { 4233 if (gravity == Gravity.BOTTOM) 4234 voffset = boxht - textht; 4235 else // (gravity == Gravity.CENTER_VERTICAL) 4236 voffset = (boxht - textht) >> 1; 4237 } 4238 } 4239 return voffset; 4240 } 4241 4242 private int getBottomVerticalOffset(boolean forceNormal) { 4243 int voffset = 0; 4244 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4245 4246 Layout l = mLayout; 4247 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4248 l = mHintLayout; 4249 } 4250 4251 if (gravity != Gravity.BOTTOM) { 4252 int boxht; 4253 4254 if (l == mHintLayout) { 4255 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4256 getCompoundPaddingBottom(); 4257 } else { 4258 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4259 getExtendedPaddingBottom(); 4260 } 4261 int textht = l.getHeight(); 4262 4263 if (textht < boxht) { 4264 if (gravity == Gravity.TOP) 4265 voffset = boxht - textht; 4266 else // (gravity == Gravity.CENTER_VERTICAL) 4267 voffset = (boxht - textht) >> 1; 4268 } 4269 } 4270 return voffset; 4271 } 4272 4273 private void invalidateCursorPath() { 4274 if (mHighlightPathBogus) { 4275 invalidateCursor(); 4276 } else { 4277 final int horizontalPadding = getCompoundPaddingLeft(); 4278 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4279 4280 if (mCursorCount == 0) { 4281 synchronized (sTempRect) { 4282 /* 4283 * The reason for this concern about the thickness of the 4284 * cursor and doing the floor/ceil on the coordinates is that 4285 * some EditTexts (notably textfields in the Browser) have 4286 * anti-aliased text where not all the characters are 4287 * necessarily at integer-multiple locations. This should 4288 * make sure the entire cursor gets invalidated instead of 4289 * sometimes missing half a pixel. 4290 */ 4291 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4292 if (thick < 1.0f) { 4293 thick = 1.0f; 4294 } 4295 4296 thick /= 2.0f; 4297 4298 mHighlightPath.computeBounds(sTempRect, false); 4299 4300 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 4301 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 4302 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 4303 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 4304 } 4305 } else { 4306 for (int i = 0; i < mCursorCount; i++) { 4307 Rect bounds = mCursorDrawable[i].getBounds(); 4308 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4309 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4310 } 4311 } 4312 } 4313 } 4314 4315 private void invalidateCursor() { 4316 int where = getSelectionEnd(); 4317 4318 invalidateCursor(where, where, where); 4319 } 4320 4321 private void invalidateCursor(int a, int b, int c) { 4322 if (a >= 0 || b >= 0 || c >= 0) { 4323 int start = Math.min(Math.min(a, b), c); 4324 int end = Math.max(Math.max(a, b), c); 4325 invalidateRegion(start, end, true /* Also invalidates blinking cursor */); 4326 } 4327 } 4328 4329 /** 4330 * Invalidates the region of text enclosed between the start and end text offsets. 4331 * 4332 * @hide 4333 */ 4334 void invalidateRegion(int start, int end, boolean invalidateCursor) { 4335 if (mLayout == null) { 4336 invalidate(); 4337 } else { 4338 int lineStart = mLayout.getLineForOffset(start); 4339 int top = mLayout.getLineTop(lineStart); 4340 4341 // This is ridiculous, but the descent from the line above 4342 // can hang down into the line we really want to redraw, 4343 // so we have to invalidate part of the line above to make 4344 // sure everything that needs to be redrawn really is. 4345 // (But not the whole line above, because that would cause 4346 // the same problem with the descenders on the line above it!) 4347 if (lineStart > 0) { 4348 top -= mLayout.getLineDescent(lineStart - 1); 4349 } 4350 4351 int lineEnd; 4352 4353 if (start == end) 4354 lineEnd = lineStart; 4355 else 4356 lineEnd = mLayout.getLineForOffset(end); 4357 4358 int bottom = mLayout.getLineBottom(lineEnd); 4359 4360 if (invalidateCursor) { 4361 for (int i = 0; i < mCursorCount; i++) { 4362 Rect bounds = mCursorDrawable[i].getBounds(); 4363 top = Math.min(top, bounds.top); 4364 bottom = Math.max(bottom, bounds.bottom); 4365 } 4366 } 4367 4368 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4369 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4370 4371 int left, right; 4372 if (lineStart == lineEnd && !invalidateCursor) { 4373 left = (int) mLayout.getPrimaryHorizontal(start); 4374 right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0); 4375 left += compoundPaddingLeft; 4376 right += compoundPaddingLeft; 4377 } else { 4378 // Rectangle bounding box when the region spans several lines 4379 left = compoundPaddingLeft; 4380 right = getWidth() - getCompoundPaddingRight(); 4381 } 4382 4383 invalidate(mScrollX + left, verticalPadding + top, 4384 mScrollX + right, verticalPadding + bottom); 4385 } 4386 } 4387 4388 private void registerForPreDraw() { 4389 final ViewTreeObserver observer = getViewTreeObserver(); 4390 4391 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 4392 observer.addOnPreDrawListener(this); 4393 mPreDrawState = PREDRAW_PENDING; 4394 } else if (mPreDrawState == PREDRAW_DONE) { 4395 mPreDrawState = PREDRAW_PENDING; 4396 } 4397 4398 // else state is PREDRAW_PENDING, so keep waiting. 4399 } 4400 4401 /** 4402 * {@inheritDoc} 4403 */ 4404 public boolean onPreDraw() { 4405 if (mPreDrawState != PREDRAW_PENDING) { 4406 return true; 4407 } 4408 4409 if (mLayout == null) { 4410 assumeLayout(); 4411 } 4412 4413 boolean changed = false; 4414 4415 if (mMovement != null) { 4416 /* This code also provides auto-scrolling when a cursor is moved using a 4417 * CursorController (insertion point or selection limits). 4418 * For selection, ensure start or end is visible depending on controller's state. 4419 */ 4420 int curs = getSelectionEnd(); 4421 // Do not create the controller if it is not already created. 4422 if (mSelectionModifierCursorController != null && 4423 mSelectionModifierCursorController.isSelectionStartDragged()) { 4424 curs = getSelectionStart(); 4425 } 4426 4427 /* 4428 * TODO: This should really only keep the end in view if 4429 * it already was before the text changed. I'm not sure 4430 * of a good way to tell from here if it was. 4431 */ 4432 if (curs < 0 && 4433 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4434 curs = mText.length(); 4435 } 4436 4437 if (curs >= 0) { 4438 changed = bringPointIntoView(curs); 4439 } 4440 } else { 4441 changed = bringTextIntoView(); 4442 } 4443 4444 // This has to be checked here since: 4445 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4446 // a screen rotation) since layout is not yet initialized at that point. 4447 if (mCreatedWithASelection) { 4448 startSelectionActionMode(); 4449 mCreatedWithASelection = false; 4450 } 4451 4452 // Phone specific code (there is no ExtractEditText on tablets). 4453 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4454 // not be set. Do the test here instead. 4455 if (this instanceof ExtractEditText && hasSelection()) { 4456 startSelectionActionMode(); 4457 } 4458 4459 mPreDrawState = PREDRAW_DONE; 4460 return !changed; 4461 } 4462 4463 @Override 4464 protected void onAttachedToWindow() { 4465 super.onAttachedToWindow(); 4466 4467 mTemporaryDetach = false; 4468 4469 if (mShowErrorAfterAttach) { 4470 showError(); 4471 mShowErrorAfterAttach = false; 4472 } 4473 4474 final ViewTreeObserver observer = getViewTreeObserver(); 4475 // No need to create the controller. 4476 // The get method will add the listener on controller creation. 4477 if (mInsertionPointCursorController != null) { 4478 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4479 } 4480 if (mSelectionModifierCursorController != null) { 4481 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4482 } 4483 4484 // Resolve drawables as the layout direction has been resolved 4485 resolveDrawables(); 4486 4487 updateSpellCheckSpans(0, mText.length(), true /* create the spell checker if needed */); 4488 } 4489 4490 @Override 4491 protected void onDetachedFromWindow() { 4492 super.onDetachedFromWindow(); 4493 4494 final ViewTreeObserver observer = getViewTreeObserver(); 4495 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4496 observer.removeOnPreDrawListener(this); 4497 mPreDrawState = PREDRAW_NOT_REGISTERED; 4498 } 4499 4500 if (mError != null) { 4501 hideError(); 4502 } 4503 4504 if (mBlink != null) { 4505 mBlink.removeCallbacks(mBlink); 4506 } 4507 4508 if (mInsertionPointCursorController != null) { 4509 mInsertionPointCursorController.onDetached(); 4510 } 4511 4512 if (mSelectionModifierCursorController != null) { 4513 mSelectionModifierCursorController.onDetached(); 4514 } 4515 4516 hideControllers(); 4517 4518 resetResolvedDrawables(); 4519 4520 if (mSpellChecker != null) { 4521 mSpellChecker.closeSession(); 4522 // Forces the creation of a new SpellChecker next time this window is created. 4523 // Will handle the cases where the settings has been changed in the meantime. 4524 mSpellChecker = null; 4525 } 4526 } 4527 4528 @Override 4529 protected boolean isPaddingOffsetRequired() { 4530 return mShadowRadius != 0 || mDrawables != null; 4531 } 4532 4533 @Override 4534 protected int getLeftPaddingOffset() { 4535 return getCompoundPaddingLeft() - mPaddingLeft + 4536 (int) Math.min(0, mShadowDx - mShadowRadius); 4537 } 4538 4539 @Override 4540 protected int getTopPaddingOffset() { 4541 return (int) Math.min(0, mShadowDy - mShadowRadius); 4542 } 4543 4544 @Override 4545 protected int getBottomPaddingOffset() { 4546 return (int) Math.max(0, mShadowDy + mShadowRadius); 4547 } 4548 4549 @Override 4550 protected int getRightPaddingOffset() { 4551 return -(getCompoundPaddingRight() - mPaddingRight) + 4552 (int) Math.max(0, mShadowDx + mShadowRadius); 4553 } 4554 4555 @Override 4556 protected boolean verifyDrawable(Drawable who) { 4557 final boolean verified = super.verifyDrawable(who); 4558 if (!verified && mDrawables != null) { 4559 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4560 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4561 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4562 } 4563 return verified; 4564 } 4565 4566 @Override 4567 public void jumpDrawablesToCurrentState() { 4568 super.jumpDrawablesToCurrentState(); 4569 if (mDrawables != null) { 4570 if (mDrawables.mDrawableLeft != null) { 4571 mDrawables.mDrawableLeft.jumpToCurrentState(); 4572 } 4573 if (mDrawables.mDrawableTop != null) { 4574 mDrawables.mDrawableTop.jumpToCurrentState(); 4575 } 4576 if (mDrawables.mDrawableRight != null) { 4577 mDrawables.mDrawableRight.jumpToCurrentState(); 4578 } 4579 if (mDrawables.mDrawableBottom != null) { 4580 mDrawables.mDrawableBottom.jumpToCurrentState(); 4581 } 4582 if (mDrawables.mDrawableStart != null) { 4583 mDrawables.mDrawableStart.jumpToCurrentState(); 4584 } 4585 if (mDrawables.mDrawableEnd != null) { 4586 mDrawables.mDrawableEnd.jumpToCurrentState(); 4587 } 4588 } 4589 } 4590 4591 @Override 4592 public void invalidateDrawable(Drawable drawable) { 4593 if (verifyDrawable(drawable)) { 4594 final Rect dirty = drawable.getBounds(); 4595 int scrollX = mScrollX; 4596 int scrollY = mScrollY; 4597 4598 // IMPORTANT: The coordinates below are based on the coordinates computed 4599 // for each compound drawable in onDraw(). Make sure to update each section 4600 // accordingly. 4601 final TextView.Drawables drawables = mDrawables; 4602 if (drawables != null) { 4603 if (drawable == drawables.mDrawableLeft) { 4604 final int compoundPaddingTop = getCompoundPaddingTop(); 4605 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4606 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4607 4608 scrollX += mPaddingLeft; 4609 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4610 } else if (drawable == drawables.mDrawableRight) { 4611 final int compoundPaddingTop = getCompoundPaddingTop(); 4612 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4613 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4614 4615 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4616 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4617 } else if (drawable == drawables.mDrawableTop) { 4618 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4619 final int compoundPaddingRight = getCompoundPaddingRight(); 4620 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4621 4622 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4623 scrollY += mPaddingTop; 4624 } else if (drawable == drawables.mDrawableBottom) { 4625 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4626 final int compoundPaddingRight = getCompoundPaddingRight(); 4627 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4628 4629 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4630 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4631 } 4632 } 4633 4634 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4635 dirty.right + scrollX, dirty.bottom + scrollY); 4636 } 4637 } 4638 4639 /** 4640 * @hide 4641 */ 4642 @Override 4643 public int getResolvedLayoutDirection(Drawable who) { 4644 if (who == null) return View.LAYOUT_DIRECTION_LTR; 4645 if (mDrawables != null) { 4646 final Drawables drawables = mDrawables; 4647 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4648 who == drawables.mDrawableTop || who == drawables.mDrawableBottom || 4649 who == drawables.mDrawableStart || who == drawables.mDrawableEnd) { 4650 return getResolvedLayoutDirection(); 4651 } 4652 } 4653 return super.getResolvedLayoutDirection(who); 4654 } 4655 4656 @Override 4657 protected boolean onSetAlpha(int alpha) { 4658 // Alpha is supported if and only if the drawing can be done in one pass. 4659 // TODO text with spans with a background color currently do not respect this alpha. 4660 if (getBackground() == null) { 4661 mCurrentAlpha = alpha; 4662 final Drawables dr = mDrawables; 4663 if (dr != null) { 4664 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4665 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4666 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4667 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4668 if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha); 4669 if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha); 4670 } 4671 return true; 4672 } 4673 4674 mCurrentAlpha = 255; 4675 return false; 4676 } 4677 4678 /** 4679 * When a TextView is used to display a useful piece of information to the user (such as a 4680 * contact's address), it should be made selectable, so that the user can select and copy this 4681 * content. 4682 * 4683 * Use {@link #setTextIsSelectable(boolean)} or the 4684 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4685 * selectable (text is not selectable by default). 4686 * 4687 * Note that this method simply returns the state of this flag. Although this flag has to be set 4688 * in order to select text in non-editable TextView, the content of an {@link EditText} can 4689 * always be selected, independently of the value of this flag. 4690 * 4691 * @return True if the text displayed in this TextView can be selected by the user. 4692 * 4693 * @attr ref android.R.styleable#TextView_textIsSelectable 4694 */ 4695 public boolean isTextSelectable() { 4696 return mTextIsSelectable; 4697 } 4698 4699 /** 4700 * Sets whether or not (default) the content of this view is selectable by the user. 4701 * 4702 * Note that this methods affect the {@link #setFocusable(boolean)}, 4703 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4704 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4705 * customized. 4706 * 4707 * See {@link #isTextSelectable} for details. 4708 * 4709 * @param selectable Whether or not the content of this TextView should be selectable. 4710 */ 4711 public void setTextIsSelectable(boolean selectable) { 4712 if (mTextIsSelectable == selectable) return; 4713 4714 mTextIsSelectable = selectable; 4715 4716 setFocusableInTouchMode(selectable); 4717 setFocusable(selectable); 4718 setClickable(selectable); 4719 setLongClickable(selectable); 4720 4721 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4722 4723 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4724 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4725 4726 // Called by setText above, but safer in case of future code changes 4727 prepareCursorControllers(); 4728 } 4729 4730 @Override 4731 protected int[] onCreateDrawableState(int extraSpace) { 4732 final int[] drawableState; 4733 4734 if (mSingleLine) { 4735 drawableState = super.onCreateDrawableState(extraSpace); 4736 } else { 4737 drawableState = super.onCreateDrawableState(extraSpace + 1); 4738 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4739 } 4740 4741 if (mTextIsSelectable) { 4742 // Disable pressed state, which was introduced when TextView was made clickable. 4743 // Prevents text color change. 4744 // setClickable(false) would have a similar effect, but it also disables focus changes 4745 // and long press actions, which are both needed by text selection. 4746 final int length = drawableState.length; 4747 for (int i = 0; i < length; i++) { 4748 if (drawableState[i] == R.attr.state_pressed) { 4749 final int[] nonPressedState = new int[length - 1]; 4750 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4751 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4752 return nonPressedState; 4753 } 4754 } 4755 } 4756 4757 return drawableState; 4758 } 4759 4760 @Override 4761 protected void onDraw(Canvas canvas) { 4762 if (mPreDrawState == PREDRAW_DONE) { 4763 final ViewTreeObserver observer = getViewTreeObserver(); 4764 observer.removeOnPreDrawListener(this); 4765 mPreDrawState = PREDRAW_NOT_REGISTERED; 4766 } 4767 4768 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4769 4770 restartMarqueeIfNeeded(); 4771 4772 // Draw the background for this view 4773 super.onDraw(canvas); 4774 4775 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4776 final int compoundPaddingTop = getCompoundPaddingTop(); 4777 final int compoundPaddingRight = getCompoundPaddingRight(); 4778 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4779 final int scrollX = mScrollX; 4780 final int scrollY = mScrollY; 4781 final int right = mRight; 4782 final int left = mLeft; 4783 final int bottom = mBottom; 4784 final int top = mTop; 4785 4786 final Drawables dr = mDrawables; 4787 if (dr != null) { 4788 /* 4789 * Compound, not extended, because the icon is not clipped 4790 * if the text height is smaller. 4791 */ 4792 4793 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4794 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4795 4796 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4797 // Make sure to update invalidateDrawable() when changing this code. 4798 if (dr.mDrawableLeft != null) { 4799 canvas.save(); 4800 canvas.translate(scrollX + mPaddingLeft, 4801 scrollY + compoundPaddingTop + 4802 (vspace - dr.mDrawableHeightLeft) / 2); 4803 dr.mDrawableLeft.draw(canvas); 4804 canvas.restore(); 4805 } 4806 4807 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4808 // Make sure to update invalidateDrawable() when changing this code. 4809 if (dr.mDrawableRight != null) { 4810 canvas.save(); 4811 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4812 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4813 dr.mDrawableRight.draw(canvas); 4814 canvas.restore(); 4815 } 4816 4817 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4818 // Make sure to update invalidateDrawable() when changing this code. 4819 if (dr.mDrawableTop != null) { 4820 canvas.save(); 4821 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4822 scrollY + mPaddingTop); 4823 dr.mDrawableTop.draw(canvas); 4824 canvas.restore(); 4825 } 4826 4827 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4828 // Make sure to update invalidateDrawable() when changing this code. 4829 if (dr.mDrawableBottom != null) { 4830 canvas.save(); 4831 canvas.translate(scrollX + compoundPaddingLeft + 4832 (hspace - dr.mDrawableWidthBottom) / 2, 4833 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4834 dr.mDrawableBottom.draw(canvas); 4835 canvas.restore(); 4836 } 4837 } 4838 4839 int color = mCurTextColor; 4840 4841 if (mLayout == null) { 4842 assumeLayout(); 4843 } 4844 4845 Layout layout = mLayout; 4846 int cursorcolor = color; 4847 4848 if (mHint != null && mText.length() == 0) { 4849 if (mHintTextColor != null) { 4850 color = mCurHintTextColor; 4851 } 4852 4853 layout = mHintLayout; 4854 } 4855 4856 mTextPaint.setColor(color); 4857 if (mCurrentAlpha != 255) { 4858 // If set, the alpha will override the color's alpha. Multiply the alphas. 4859 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4860 } 4861 mTextPaint.drawableState = getDrawableState(); 4862 4863 canvas.save(); 4864 /* Would be faster if we didn't have to do this. Can we chop the 4865 (displayable) text so that we don't need to do this ever? 4866 */ 4867 4868 int extendedPaddingTop = getExtendedPaddingTop(); 4869 int extendedPaddingBottom = getExtendedPaddingBottom(); 4870 4871 float clipLeft = compoundPaddingLeft + scrollX; 4872 float clipTop = extendedPaddingTop + scrollY; 4873 float clipRight = right - left - compoundPaddingRight + scrollX; 4874 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4875 4876 if (mShadowRadius != 0) { 4877 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4878 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4879 4880 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4881 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4882 } 4883 4884 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4885 4886 int voffsetText = 0; 4887 int voffsetCursor = 0; 4888 4889 // translate in by our padding 4890 { 4891 /* shortcircuit calling getVerticaOffset() */ 4892 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4893 voffsetText = getVerticalOffset(false); 4894 voffsetCursor = getVerticalOffset(true); 4895 } 4896 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4897 } 4898 4899 final int layoutDirection = getResolvedLayoutDirection(); 4900 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 4901 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 4902 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 4903 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4904 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4905 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4906 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4907 } 4908 4909 if (mMarquee != null && mMarquee.isRunning()) { 4910 canvas.translate(-mMarquee.mScroll, 0.0f); 4911 } 4912 } 4913 4914 Path highlight = null; 4915 int selStart = -1, selEnd = -1; 4916 boolean drawCursor = false; 4917 4918 // If there is no movement method, then there can be no selection. 4919 // Check that first and attempt to skip everything having to do with 4920 // the cursor. 4921 // XXX This is not strictly true -- a program could set the 4922 // selection manually if it really wanted to. 4923 if (mMovement != null && (isFocused() || isPressed())) { 4924 selStart = getSelectionStart(); 4925 selEnd = getSelectionEnd(); 4926 4927 if (selStart >= 0) { 4928 if (mHighlightPath == null) mHighlightPath = new Path(); 4929 4930 if (selStart == selEnd) { 4931 if (isCursorVisible() && 4932 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4933 if (mHighlightPathBogus) { 4934 mHighlightPath.reset(); 4935 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4936 updateCursorsPositions(); 4937 mHighlightPathBogus = false; 4938 } 4939 4940 // XXX should pass to skin instead of drawing directly 4941 mHighlightPaint.setColor(cursorcolor); 4942 if (mCurrentAlpha != 255) { 4943 mHighlightPaint.setAlpha( 4944 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4945 } 4946 mHighlightPaint.setStyle(Paint.Style.STROKE); 4947 highlight = mHighlightPath; 4948 drawCursor = mCursorCount > 0; 4949 } 4950 } else if (textCanBeSelected()) { 4951 if (mHighlightPathBogus) { 4952 mHighlightPath.reset(); 4953 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4954 mHighlightPathBogus = false; 4955 } 4956 4957 // XXX should pass to skin instead of drawing directly 4958 mHighlightPaint.setColor(mHighlightColor); 4959 if (mCurrentAlpha != 255) { 4960 mHighlightPaint.setAlpha( 4961 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4962 } 4963 mHighlightPaint.setStyle(Paint.Style.FILL); 4964 4965 highlight = mHighlightPath; 4966 } 4967 } 4968 } 4969 4970 /* Comment out until we decide what to do about animations 4971 boolean isLinearTextOn = false; 4972 if (currentTransformation != null) { 4973 isLinearTextOn = mTextPaint.isLinearTextOn(); 4974 Matrix m = currentTransformation.getMatrix(); 4975 if (!m.isIdentity()) { 4976 // mTextPaint.setLinearTextOn(true); 4977 } 4978 } 4979 */ 4980 4981 final InputMethodState ims = mInputMethodState; 4982 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4983 if (ims != null && ims.mBatchEditNesting == 0) { 4984 InputMethodManager imm = InputMethodManager.peekInstance(); 4985 if (imm != null) { 4986 if (imm.isActive(this)) { 4987 boolean reported = false; 4988 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4989 // We are in extract mode and the content has changed 4990 // in some way... just report complete new text to the 4991 // input method. 4992 reported = reportExtractedText(); 4993 } 4994 if (!reported && highlight != null) { 4995 int candStart = -1; 4996 int candEnd = -1; 4997 if (mText instanceof Spannable) { 4998 Spannable sp = (Spannable)mText; 4999 candStart = EditableInputConnection.getComposingSpanStart(sp); 5000 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 5001 } 5002 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 5003 } 5004 } 5005 5006 if (imm.isWatchingCursor(this) && highlight != null) { 5007 highlight.computeBounds(ims.mTmpRectF, true); 5008 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 5009 5010 canvas.getMatrix().mapPoints(ims.mTmpOffset); 5011 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 5012 5013 ims.mTmpRectF.offset(0, cursorOffsetVertical); 5014 5015 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 5016 (int)(ims.mTmpRectF.top + 0.5), 5017 (int)(ims.mTmpRectF.right + 0.5), 5018 (int)(ims.mTmpRectF.bottom + 0.5)); 5019 5020 imm.updateCursor(this, 5021 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 5022 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 5023 } 5024 } 5025 } 5026 5027 if (mCorrectionHighlighter != null) { 5028 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 5029 } 5030 5031 if (drawCursor) { 5032 drawCursor(canvas, cursorOffsetVertical); 5033 // Rely on the drawable entirely, do not draw the cursor line. 5034 // Has to be done after the IMM related code above which relies on the highlight. 5035 highlight = null; 5036 } 5037 5038 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5039 5040 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 5041 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 5042 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5043 } 5044 5045 /* Comment out until we decide what to do about animations 5046 if (currentTransformation != null) { 5047 mTextPaint.setLinearTextOn(isLinearTextOn); 5048 } 5049 */ 5050 5051 canvas.restore(); 5052 } 5053 5054 private void updateCursorsPositions() { 5055 if (mCursorDrawableRes == 0) { 5056 mCursorCount = 0; 5057 return; 5058 } 5059 5060 final int offset = getSelectionStart(); 5061 final int line = mLayout.getLineForOffset(offset); 5062 final int top = mLayout.getLineTop(line); 5063 final int bottom = mLayout.getLineTop(line + 1); 5064 5065 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 5066 5067 int middle = bottom; 5068 if (mCursorCount == 2) { 5069 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 5070 middle = (top + bottom) >> 1; 5071 } 5072 5073 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 5074 5075 if (mCursorCount == 2) { 5076 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 5077 } 5078 } 5079 5080 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 5081 if (mCursorDrawable[cursorIndex] == null) 5082 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 5083 5084 if (mTempRect == null) mTempRect = new Rect(); 5085 5086 mCursorDrawable[cursorIndex].getPadding(mTempRect); 5087 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 5088 horizontal = Math.max(0.5f, horizontal - 0.5f); 5089 final int left = (int) (horizontal) - mTempRect.left; 5090 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 5091 bottom + mTempRect.bottom); 5092 } 5093 5094 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 5095 final boolean translate = cursorOffsetVertical != 0; 5096 if (translate) canvas.translate(0, cursorOffsetVertical); 5097 for (int i = 0; i < mCursorCount; i++) { 5098 mCursorDrawable[i].draw(canvas); 5099 } 5100 if (translate) canvas.translate(0, -cursorOffsetVertical); 5101 } 5102 5103 @Override 5104 public void getFocusedRect(Rect r) { 5105 if (mLayout == null) { 5106 super.getFocusedRect(r); 5107 return; 5108 } 5109 5110 int selEnd = getSelectionEnd(); 5111 if (selEnd < 0) { 5112 super.getFocusedRect(r); 5113 return; 5114 } 5115 5116 int selStart = getSelectionStart(); 5117 if (selStart < 0 || selStart >= selEnd) { 5118 int line = mLayout.getLineForOffset(selEnd); 5119 r.top = mLayout.getLineTop(line); 5120 r.bottom = mLayout.getLineBottom(line); 5121 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 5122 r.right = r.left + 4; 5123 } else { 5124 int lineStart = mLayout.getLineForOffset(selStart); 5125 int lineEnd = mLayout.getLineForOffset(selEnd); 5126 r.top = mLayout.getLineTop(lineStart); 5127 r.bottom = mLayout.getLineBottom(lineEnd); 5128 if (lineStart == lineEnd) { 5129 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5130 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5131 } else { 5132 // Selection extends across multiple lines -- the focused 5133 // rect covers the entire width. 5134 if (mHighlightPath == null) mHighlightPath = new Path(); 5135 if (mHighlightPathBogus) { 5136 mHighlightPath.reset(); 5137 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5138 mHighlightPathBogus = false; 5139 } 5140 synchronized (sTempRect) { 5141 mHighlightPath.computeBounds(sTempRect, true); 5142 r.left = (int)sTempRect.left-1; 5143 r.right = (int)sTempRect.right+1; 5144 } 5145 } 5146 } 5147 5148 // Adjust for padding and gravity. 5149 int paddingLeft = getCompoundPaddingLeft(); 5150 int paddingTop = getExtendedPaddingTop(); 5151 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5152 paddingTop += getVerticalOffset(false); 5153 } 5154 r.offset(paddingLeft, paddingTop); 5155 } 5156 5157 /** 5158 * Return the number of lines of text, or 0 if the internal Layout has not 5159 * been built. 5160 */ 5161 public int getLineCount() { 5162 return mLayout != null ? mLayout.getLineCount() : 0; 5163 } 5164 5165 /** 5166 * Return the baseline for the specified line (0...getLineCount() - 1) 5167 * If bounds is not null, return the top, left, right, bottom extents 5168 * of the specified line in it. If the internal Layout has not been built, 5169 * return 0 and set bounds to (0, 0, 0, 0) 5170 * @param line which line to examine (0..getLineCount() - 1) 5171 * @param bounds Optional. If not null, it returns the extent of the line 5172 * @return the Y-coordinate of the baseline 5173 */ 5174 public int getLineBounds(int line, Rect bounds) { 5175 if (mLayout == null) { 5176 if (bounds != null) { 5177 bounds.set(0, 0, 0, 0); 5178 } 5179 return 0; 5180 } 5181 else { 5182 int baseline = mLayout.getLineBounds(line, bounds); 5183 5184 int voffset = getExtendedPaddingTop(); 5185 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5186 voffset += getVerticalOffset(true); 5187 } 5188 if (bounds != null) { 5189 bounds.offset(getCompoundPaddingLeft(), voffset); 5190 } 5191 return baseline + voffset; 5192 } 5193 } 5194 5195 @Override 5196 public int getBaseline() { 5197 if (mLayout == null) { 5198 return super.getBaseline(); 5199 } 5200 5201 int voffset = 0; 5202 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5203 voffset = getVerticalOffset(true); 5204 } 5205 5206 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5207 } 5208 5209 /** 5210 * @hide 5211 * @param offsetRequired 5212 */ 5213 @Override 5214 protected int getFadeTop(boolean offsetRequired) { 5215 if (mLayout == null) return 0; 5216 5217 int voffset = 0; 5218 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5219 voffset = getVerticalOffset(true); 5220 } 5221 5222 if (offsetRequired) voffset += getTopPaddingOffset(); 5223 5224 return getExtendedPaddingTop() + voffset; 5225 } 5226 5227 /** 5228 * @hide 5229 * @param offsetRequired 5230 */ 5231 @Override 5232 protected int getFadeHeight(boolean offsetRequired) { 5233 return mLayout != null ? mLayout.getHeight() : 0; 5234 } 5235 5236 @Override 5237 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5238 if (keyCode == KeyEvent.KEYCODE_BACK) { 5239 boolean isInSelectionMode = mSelectionActionMode != null; 5240 5241 if (isInSelectionMode) { 5242 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5243 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5244 if (state != null) { 5245 state.startTracking(event, this); 5246 } 5247 return true; 5248 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5249 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5250 if (state != null) { 5251 state.handleUpEvent(event); 5252 } 5253 if (event.isTracking() && !event.isCanceled()) { 5254 if (isInSelectionMode) { 5255 stopSelectionActionMode(); 5256 return true; 5257 } 5258 } 5259 } 5260 } 5261 } 5262 return super.onKeyPreIme(keyCode, event); 5263 } 5264 5265 @Override 5266 public boolean onKeyDown(int keyCode, KeyEvent event) { 5267 int which = doKeyDown(keyCode, event, null); 5268 if (which == 0) { 5269 // Go through default dispatching. 5270 return super.onKeyDown(keyCode, event); 5271 } 5272 5273 return true; 5274 } 5275 5276 @Override 5277 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5278 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5279 5280 int which = doKeyDown(keyCode, down, event); 5281 if (which == 0) { 5282 // Go through default dispatching. 5283 return super.onKeyMultiple(keyCode, repeatCount, event); 5284 } 5285 if (which == -1) { 5286 // Consumed the whole thing. 5287 return true; 5288 } 5289 5290 repeatCount--; 5291 5292 // We are going to dispatch the remaining events to either the input 5293 // or movement method. To do this, we will just send a repeated stream 5294 // of down and up events until we have done the complete repeatCount. 5295 // It would be nice if those interfaces had an onKeyMultiple() method, 5296 // but adding that is a more complicated change. 5297 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5298 if (which == 1) { 5299 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5300 while (--repeatCount > 0) { 5301 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 5302 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5303 } 5304 hideErrorIfUnchanged(); 5305 5306 } else if (which == 2) { 5307 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5308 while (--repeatCount > 0) { 5309 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5310 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5311 } 5312 } 5313 5314 return true; 5315 } 5316 5317 /** 5318 * Returns true if pressing ENTER in this field advances focus instead 5319 * of inserting the character. This is true mostly in single-line fields, 5320 * but also in mail addresses and subjects which will display on multiple 5321 * lines but where it doesn't make sense to insert newlines. 5322 */ 5323 private boolean shouldAdvanceFocusOnEnter() { 5324 if (mInput == null) { 5325 return false; 5326 } 5327 5328 if (mSingleLine) { 5329 return true; 5330 } 5331 5332 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5333 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5334 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5335 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5336 return true; 5337 } 5338 } 5339 5340 return false; 5341 } 5342 5343 /** 5344 * Returns true if pressing TAB in this field advances focus instead 5345 * of inserting the character. Insert tabs only in multi-line editors. 5346 */ 5347 private boolean shouldAdvanceFocusOnTab() { 5348 if (mInput != null && !mSingleLine) { 5349 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5350 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5351 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5352 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5353 return false; 5354 } 5355 } 5356 } 5357 return true; 5358 } 5359 5360 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5361 if (!isEnabled()) { 5362 return 0; 5363 } 5364 5365 switch (keyCode) { 5366 case KeyEvent.KEYCODE_ENTER: 5367 if (event.hasNoModifiers()) { 5368 // When mInputContentType is set, we know that we are 5369 // running in a "modern" cupcake environment, so don't need 5370 // to worry about the application trying to capture 5371 // enter key events. 5372 if (mInputContentType != null) { 5373 // If there is an action listener, given them a 5374 // chance to consume the event. 5375 if (mInputContentType.onEditorActionListener != null && 5376 mInputContentType.onEditorActionListener.onEditorAction( 5377 this, EditorInfo.IME_NULL, event)) { 5378 mInputContentType.enterDown = true; 5379 // We are consuming the enter key for them. 5380 return -1; 5381 } 5382 } 5383 5384 // If our editor should move focus when enter is pressed, or 5385 // this is a generated event from an IME action button, then 5386 // don't let it be inserted into the text. 5387 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5388 || shouldAdvanceFocusOnEnter()) { 5389 if (hasOnClickListeners()) { 5390 return 0; 5391 } 5392 return -1; 5393 } 5394 } 5395 break; 5396 5397 case KeyEvent.KEYCODE_DPAD_CENTER: 5398 if (event.hasNoModifiers()) { 5399 if (shouldAdvanceFocusOnEnter()) { 5400 return 0; 5401 } 5402 } 5403 break; 5404 5405 case KeyEvent.KEYCODE_TAB: 5406 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5407 if (shouldAdvanceFocusOnTab()) { 5408 return 0; 5409 } 5410 } 5411 break; 5412 5413 // Has to be done on key down (and not on key up) to correctly be intercepted. 5414 case KeyEvent.KEYCODE_BACK: 5415 if (mSelectionActionMode != null) { 5416 stopSelectionActionMode(); 5417 return -1; 5418 } 5419 break; 5420 } 5421 5422 if (mInput != null) { 5423 resetErrorChangedFlag(); 5424 5425 boolean doDown = true; 5426 if (otherEvent != null) { 5427 try { 5428 beginBatchEdit(); 5429 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 5430 hideErrorIfUnchanged(); 5431 doDown = false; 5432 if (handled) { 5433 return -1; 5434 } 5435 } catch (AbstractMethodError e) { 5436 // onKeyOther was added after 1.0, so if it isn't 5437 // implemented we need to try to dispatch as a regular down. 5438 } finally { 5439 endBatchEdit(); 5440 } 5441 } 5442 5443 if (doDown) { 5444 beginBatchEdit(); 5445 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 5446 endBatchEdit(); 5447 hideErrorIfUnchanged(); 5448 if (handled) return 1; 5449 } 5450 } 5451 5452 // bug 650865: sometimes we get a key event before a layout. 5453 // don't try to move around if we don't know the layout. 5454 5455 if (mMovement != null && mLayout != null) { 5456 boolean doDown = true; 5457 if (otherEvent != null) { 5458 try { 5459 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5460 otherEvent); 5461 doDown = false; 5462 if (handled) { 5463 return -1; 5464 } 5465 } catch (AbstractMethodError e) { 5466 // onKeyOther was added after 1.0, so if it isn't 5467 // implemented we need to try to dispatch as a regular down. 5468 } 5469 } 5470 if (doDown) { 5471 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 5472 return 2; 5473 } 5474 } 5475 5476 return 0; 5477 } 5478 5479 /** 5480 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5481 * can be recorded. 5482 * @hide 5483 */ 5484 public void resetErrorChangedFlag() { 5485 /* 5486 * Keep track of what the error was before doing the input 5487 * so that if an input filter changed the error, we leave 5488 * that error showing. Otherwise, we take down whatever 5489 * error was showing when the user types something. 5490 */ 5491 mErrorWasChanged = false; 5492 } 5493 5494 /** 5495 * @hide 5496 */ 5497 public void hideErrorIfUnchanged() { 5498 if (mError != null && !mErrorWasChanged) { 5499 setError(null, null); 5500 } 5501 } 5502 5503 @Override 5504 public boolean onKeyUp(int keyCode, KeyEvent event) { 5505 if (!isEnabled()) { 5506 return super.onKeyUp(keyCode, event); 5507 } 5508 5509 switch (keyCode) { 5510 case KeyEvent.KEYCODE_DPAD_CENTER: 5511 if (event.hasNoModifiers()) { 5512 /* 5513 * If there is a click listener, just call through to 5514 * super, which will invoke it. 5515 * 5516 * If there isn't a click listener, try to show the soft 5517 * input method. (It will also 5518 * call performClick(), but that won't do anything in 5519 * this case.) 5520 */ 5521 if (!hasOnClickListeners()) { 5522 if (mMovement != null && mText instanceof Editable 5523 && mLayout != null && onCheckIsTextEditor()) { 5524 InputMethodManager imm = InputMethodManager.peekInstance(); 5525 viewClicked(imm); 5526 if (imm != null && mSoftInputShownOnFocus) { 5527 imm.showSoftInput(this, 0); 5528 } 5529 } 5530 } 5531 } 5532 return super.onKeyUp(keyCode, event); 5533 5534 case KeyEvent.KEYCODE_ENTER: 5535 if (event.hasNoModifiers()) { 5536 if (mInputContentType != null 5537 && mInputContentType.onEditorActionListener != null 5538 && mInputContentType.enterDown) { 5539 mInputContentType.enterDown = false; 5540 if (mInputContentType.onEditorActionListener.onEditorAction( 5541 this, EditorInfo.IME_NULL, event)) { 5542 return true; 5543 } 5544 } 5545 5546 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5547 || shouldAdvanceFocusOnEnter()) { 5548 /* 5549 * If there is a click listener, just call through to 5550 * super, which will invoke it. 5551 * 5552 * If there isn't a click listener, try to advance focus, 5553 * but still call through to super, which will reset the 5554 * pressed state and longpress state. (It will also 5555 * call performClick(), but that won't do anything in 5556 * this case.) 5557 */ 5558 if (!hasOnClickListeners()) { 5559 View v = focusSearch(FOCUS_DOWN); 5560 5561 if (v != null) { 5562 if (!v.requestFocus(FOCUS_DOWN)) { 5563 throw new IllegalStateException( 5564 "focus search returned a view " + 5565 "that wasn't able to take focus!"); 5566 } 5567 5568 /* 5569 * Return true because we handled the key; super 5570 * will return false because there was no click 5571 * listener. 5572 */ 5573 super.onKeyUp(keyCode, event); 5574 return true; 5575 } else if ((event.getFlags() 5576 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5577 // No target for next focus, but make sure the IME 5578 // if this came from it. 5579 InputMethodManager imm = InputMethodManager.peekInstance(); 5580 if (imm != null && imm.isActive(this)) { 5581 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5582 } 5583 } 5584 } 5585 } 5586 return super.onKeyUp(keyCode, event); 5587 } 5588 break; 5589 } 5590 5591 if (mInput != null) 5592 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 5593 return true; 5594 5595 if (mMovement != null && mLayout != null) 5596 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5597 return true; 5598 5599 return super.onKeyUp(keyCode, event); 5600 } 5601 5602 @Override public boolean onCheckIsTextEditor() { 5603 return mInputType != EditorInfo.TYPE_NULL; 5604 } 5605 5606 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5607 if (onCheckIsTextEditor() && isEnabled()) { 5608 if (mInputMethodState == null) { 5609 mInputMethodState = new InputMethodState(); 5610 } 5611 outAttrs.inputType = mInputType; 5612 if (mInputContentType != null) { 5613 outAttrs.imeOptions = mInputContentType.imeOptions; 5614 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5615 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5616 outAttrs.actionId = mInputContentType.imeActionId; 5617 outAttrs.extras = mInputContentType.extras; 5618 } else { 5619 outAttrs.imeOptions = EditorInfo.IME_NULL; 5620 } 5621 if (focusSearch(FOCUS_DOWN) != null) { 5622 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5623 } 5624 if (focusSearch(FOCUS_UP) != null) { 5625 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5626 } 5627 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5628 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5629 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5630 // An action has not been set, but the enter key will move to 5631 // the next focus, so set the action to that. 5632 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5633 } else { 5634 // An action has not been set, and there is no focus to move 5635 // to, so let's just supply a "done" action. 5636 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5637 } 5638 if (!shouldAdvanceFocusOnEnter()) { 5639 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5640 } 5641 } 5642 if (isMultilineInputType(outAttrs.inputType)) { 5643 // Multi-line text editors should always show an enter key. 5644 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5645 } 5646 outAttrs.hintText = mHint; 5647 if (mText instanceof Editable) { 5648 InputConnection ic = new EditableInputConnection(this); 5649 outAttrs.initialSelStart = getSelectionStart(); 5650 outAttrs.initialSelEnd = getSelectionEnd(); 5651 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5652 return ic; 5653 } 5654 } 5655 return null; 5656 } 5657 5658 /** 5659 * If this TextView contains editable content, extract a portion of it 5660 * based on the information in <var>request</var> in to <var>outText</var>. 5661 * @return Returns true if the text was successfully extracted, else false. 5662 */ 5663 public boolean extractText(ExtractedTextRequest request, 5664 ExtractedText outText) { 5665 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5666 EXTRACT_UNKNOWN, outText); 5667 } 5668 5669 static final int EXTRACT_NOTHING = -2; 5670 static final int EXTRACT_UNKNOWN = -1; 5671 5672 boolean extractTextInternal(ExtractedTextRequest request, 5673 int partialStartOffset, int partialEndOffset, int delta, 5674 ExtractedText outText) { 5675 final CharSequence content = mText; 5676 if (content != null) { 5677 if (partialStartOffset != EXTRACT_NOTHING) { 5678 final int N = content.length(); 5679 if (partialStartOffset < 0) { 5680 outText.partialStartOffset = outText.partialEndOffset = -1; 5681 partialStartOffset = 0; 5682 partialEndOffset = N; 5683 } else { 5684 // Now use the delta to determine the actual amount of text 5685 // we need. 5686 partialEndOffset += delta; 5687 // Adjust offsets to ensure we contain full spans. 5688 if (content instanceof Spanned) { 5689 Spanned spanned = (Spanned)content; 5690 Object[] spans = spanned.getSpans(partialStartOffset, 5691 partialEndOffset, ParcelableSpan.class); 5692 int i = spans.length; 5693 while (i > 0) { 5694 i--; 5695 int j = spanned.getSpanStart(spans[i]); 5696 if (j < partialStartOffset) partialStartOffset = j; 5697 j = spanned.getSpanEnd(spans[i]); 5698 if (j > partialEndOffset) partialEndOffset = j; 5699 } 5700 } 5701 outText.partialStartOffset = partialStartOffset; 5702 outText.partialEndOffset = partialEndOffset - delta; 5703 5704 if (partialStartOffset > N) { 5705 partialStartOffset = N; 5706 } else if (partialStartOffset < 0) { 5707 partialStartOffset = 0; 5708 } 5709 if (partialEndOffset > N) { 5710 partialEndOffset = N; 5711 } else if (partialEndOffset < 0) { 5712 partialEndOffset = 0; 5713 } 5714 } 5715 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5716 outText.text = content.subSequence(partialStartOffset, 5717 partialEndOffset); 5718 } else { 5719 outText.text = TextUtils.substring(content, partialStartOffset, 5720 partialEndOffset); 5721 } 5722 } else { 5723 outText.partialStartOffset = 0; 5724 outText.partialEndOffset = 0; 5725 outText.text = ""; 5726 } 5727 outText.flags = 0; 5728 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5729 outText.flags |= ExtractedText.FLAG_SELECTING; 5730 } 5731 if (mSingleLine) { 5732 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5733 } 5734 outText.startOffset = 0; 5735 outText.selectionStart = getSelectionStart(); 5736 outText.selectionEnd = getSelectionEnd(); 5737 return true; 5738 } 5739 return false; 5740 } 5741 5742 boolean reportExtractedText() { 5743 final InputMethodState ims = mInputMethodState; 5744 if (ims != null) { 5745 final boolean contentChanged = ims.mContentChanged; 5746 if (contentChanged || ims.mSelectionModeChanged) { 5747 ims.mContentChanged = false; 5748 ims.mSelectionModeChanged = false; 5749 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5750 if (req != null) { 5751 InputMethodManager imm = InputMethodManager.peekInstance(); 5752 if (imm != null) { 5753 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5754 + ims.mChangedStart + " end=" + ims.mChangedEnd 5755 + " delta=" + ims.mChangedDelta); 5756 if (ims.mChangedStart < 0 && !contentChanged) { 5757 ims.mChangedStart = EXTRACT_NOTHING; 5758 } 5759 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5760 ims.mChangedDelta, ims.mTmpExtracted)) { 5761 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5762 + ims.mTmpExtracted.partialStartOffset 5763 + " end=" + ims.mTmpExtracted.partialEndOffset 5764 + ": " + ims.mTmpExtracted.text); 5765 imm.updateExtractedText(this, req.token, 5766 mInputMethodState.mTmpExtracted); 5767 ims.mChangedStart = EXTRACT_UNKNOWN; 5768 ims.mChangedEnd = EXTRACT_UNKNOWN; 5769 ims.mChangedDelta = 0; 5770 ims.mContentChanged = false; 5771 return true; 5772 } 5773 } 5774 } 5775 } 5776 } 5777 return false; 5778 } 5779 5780 /** 5781 * This is used to remove all style-impacting spans from text before new 5782 * extracted text is being replaced into it, so that we don't have any 5783 * lingering spans applied during the replace. 5784 */ 5785 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5786 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5787 int i = spans.length; 5788 while (i > 0) { 5789 i--; 5790 spannable.removeSpan(spans[i]); 5791 } 5792 } 5793 5794 /** 5795 * Apply to this text view the given extracted text, as previously 5796 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5797 */ 5798 public void setExtractedText(ExtractedText text) { 5799 Editable content = getEditableText(); 5800 if (text.text != null) { 5801 if (content == null) { 5802 setText(text.text, TextView.BufferType.EDITABLE); 5803 } else if (text.partialStartOffset < 0) { 5804 removeParcelableSpans(content, 0, content.length()); 5805 content.replace(0, content.length(), text.text); 5806 } else { 5807 final int N = content.length(); 5808 int start = text.partialStartOffset; 5809 if (start > N) start = N; 5810 int end = text.partialEndOffset; 5811 if (end > N) end = N; 5812 removeParcelableSpans(content, start, end); 5813 content.replace(start, end, text.text); 5814 } 5815 } 5816 5817 // Now set the selection position... make sure it is in range, to 5818 // avoid crashes. If this is a partial update, it is possible that 5819 // the underlying text may have changed, causing us problems here. 5820 // Also we just don't want to trust clients to do the right thing. 5821 Spannable sp = (Spannable)getText(); 5822 final int N = sp.length(); 5823 int start = text.selectionStart; 5824 if (start < 0) start = 0; 5825 else if (start > N) start = N; 5826 int end = text.selectionEnd; 5827 if (end < 0) end = 0; 5828 else if (end > N) end = N; 5829 Selection.setSelection(sp, start, end); 5830 5831 // Finally, update the selection mode. 5832 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5833 MetaKeyKeyListener.startSelecting(this, sp); 5834 } else { 5835 MetaKeyKeyListener.stopSelecting(this, sp); 5836 } 5837 } 5838 5839 /** 5840 * @hide 5841 */ 5842 public void setExtracting(ExtractedTextRequest req) { 5843 if (mInputMethodState != null) { 5844 mInputMethodState.mExtracting = req; 5845 } 5846 // This would stop a possible selection mode, but no such mode is started in case 5847 // extracted mode will start. Some text is selected though, and will trigger an action mode 5848 // in the extracted view. 5849 hideControllers(); 5850 } 5851 5852 /** 5853 * Called by the framework in response to a text completion from 5854 * the current input method, provided by it calling 5855 * {@link InputConnection#commitCompletion 5856 * InputConnection.commitCompletion()}. The default implementation does 5857 * nothing; text views that are supporting auto-completion should override 5858 * this to do their desired behavior. 5859 * 5860 * @param text The auto complete text the user has selected. 5861 */ 5862 public void onCommitCompletion(CompletionInfo text) { 5863 // intentionally empty 5864 } 5865 5866 /** 5867 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5868 * a dictionnary) from the current input method, provided by it calling 5869 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5870 * implementation flashes the background of the corrected word to provide feedback to the user. 5871 * 5872 * @param info The auto correct info about the text that was corrected. 5873 */ 5874 public void onCommitCorrection(CorrectionInfo info) { 5875 if (mCorrectionHighlighter == null) { 5876 mCorrectionHighlighter = new CorrectionHighlighter(); 5877 } else { 5878 mCorrectionHighlighter.invalidate(false); 5879 } 5880 5881 mCorrectionHighlighter.highlight(info); 5882 } 5883 5884 private class CorrectionHighlighter { 5885 private final Path mPath = new Path(); 5886 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5887 private int mStart, mEnd; 5888 private long mFadingStartTime; 5889 private final static int FADE_OUT_DURATION = 400; 5890 5891 public CorrectionHighlighter() { 5892 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5893 mPaint.setStyle(Paint.Style.FILL); 5894 } 5895 5896 public void highlight(CorrectionInfo info) { 5897 mStart = info.getOffset(); 5898 mEnd = mStart + info.getNewText().length(); 5899 mFadingStartTime = SystemClock.uptimeMillis(); 5900 5901 if (mStart < 0 || mEnd < 0) { 5902 stopAnimation(); 5903 } 5904 } 5905 5906 public void draw(Canvas canvas, int cursorOffsetVertical) { 5907 if (updatePath() && updatePaint()) { 5908 if (cursorOffsetVertical != 0) { 5909 canvas.translate(0, cursorOffsetVertical); 5910 } 5911 5912 canvas.drawPath(mPath, mPaint); 5913 5914 if (cursorOffsetVertical != 0) { 5915 canvas.translate(0, -cursorOffsetVertical); 5916 } 5917 invalidate(true); // TODO invalidate cursor region only 5918 } else { 5919 stopAnimation(); 5920 invalidate(false); // TODO invalidate cursor region only 5921 } 5922 } 5923 5924 private boolean updatePaint() { 5925 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5926 if (duration > FADE_OUT_DURATION) return false; 5927 5928 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5929 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5930 final int color = (mHighlightColor & 0x00FFFFFF) + 5931 ((int) (highlightColorAlpha * coef) << 24); 5932 mPaint.setColor(color); 5933 return true; 5934 } 5935 5936 private boolean updatePath() { 5937 final Layout layout = TextView.this.mLayout; 5938 if (layout == null) return false; 5939 5940 // Update in case text is edited while the animation is run 5941 final int length = mText.length(); 5942 int start = Math.min(length, mStart); 5943 int end = Math.min(length, mEnd); 5944 5945 mPath.reset(); 5946 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5947 return true; 5948 } 5949 5950 private void invalidate(boolean delayed) { 5951 if (TextView.this.mLayout == null) return; 5952 5953 synchronized (sTempRect) { 5954 mPath.computeBounds(sTempRect, false); 5955 5956 int left = getCompoundPaddingLeft(); 5957 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5958 5959 if (delayed) { 5960 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5961 left + (int) sTempRect.left, top + (int) sTempRect.top, 5962 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5963 } else { 5964 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5965 (int) sTempRect.right, (int) sTempRect.bottom); 5966 } 5967 } 5968 } 5969 5970 private void stopAnimation() { 5971 TextView.this.mCorrectionHighlighter = null; 5972 } 5973 } 5974 5975 public void beginBatchEdit() { 5976 mInBatchEditControllers = true; 5977 final InputMethodState ims = mInputMethodState; 5978 if (ims != null) { 5979 int nesting = ++ims.mBatchEditNesting; 5980 if (nesting == 1) { 5981 ims.mCursorChanged = false; 5982 ims.mChangedDelta = 0; 5983 if (ims.mContentChanged) { 5984 // We already have a pending change from somewhere else, 5985 // so turn this into a full update. 5986 ims.mChangedStart = 0; 5987 ims.mChangedEnd = mText.length(); 5988 } else { 5989 ims.mChangedStart = EXTRACT_UNKNOWN; 5990 ims.mChangedEnd = EXTRACT_UNKNOWN; 5991 ims.mContentChanged = false; 5992 } 5993 onBeginBatchEdit(); 5994 } 5995 } 5996 } 5997 5998 public void endBatchEdit() { 5999 mInBatchEditControllers = false; 6000 final InputMethodState ims = mInputMethodState; 6001 if (ims != null) { 6002 int nesting = --ims.mBatchEditNesting; 6003 if (nesting == 0) { 6004 finishBatchEdit(ims); 6005 } 6006 } 6007 } 6008 6009 void ensureEndedBatchEdit() { 6010 final InputMethodState ims = mInputMethodState; 6011 if (ims != null && ims.mBatchEditNesting != 0) { 6012 ims.mBatchEditNesting = 0; 6013 finishBatchEdit(ims); 6014 } 6015 } 6016 6017 void finishBatchEdit(final InputMethodState ims) { 6018 onEndBatchEdit(); 6019 6020 if (ims.mContentChanged || ims.mSelectionModeChanged) { 6021 updateAfterEdit(); 6022 reportExtractedText(); 6023 } else if (ims.mCursorChanged) { 6024 // Cheezy way to get us to report the current cursor location. 6025 invalidateCursor(); 6026 } 6027 } 6028 6029 void updateAfterEdit() { 6030 invalidate(); 6031 int curs = getSelectionStart(); 6032 6033 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6034 registerForPreDraw(); 6035 } 6036 6037 if (curs >= 0) { 6038 mHighlightPathBogus = true; 6039 makeBlink(); 6040 bringPointIntoView(curs); 6041 } 6042 6043 checkForResize(); 6044 } 6045 6046 /** 6047 * Called by the framework in response to a request to begin a batch 6048 * of edit operations through a call to link {@link #beginBatchEdit()}. 6049 */ 6050 public void onBeginBatchEdit() { 6051 // intentionally empty 6052 } 6053 6054 /** 6055 * Called by the framework in response to a request to end a batch 6056 * of edit operations through a call to link {@link #endBatchEdit}. 6057 */ 6058 public void onEndBatchEdit() { 6059 // intentionally empty 6060 } 6061 6062 /** 6063 * Called by the framework in response to a private command from the 6064 * current method, provided by it calling 6065 * {@link InputConnection#performPrivateCommand 6066 * InputConnection.performPrivateCommand()}. 6067 * 6068 * @param action The action name of the command. 6069 * @param data Any additional data for the command. This may be null. 6070 * @return Return true if you handled the command, else false. 6071 */ 6072 public boolean onPrivateIMECommand(String action, Bundle data) { 6073 return false; 6074 } 6075 6076 private void nullLayouts() { 6077 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 6078 mSavedLayout = (BoringLayout) mLayout; 6079 } 6080 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 6081 mSavedHintLayout = (BoringLayout) mHintLayout; 6082 } 6083 6084 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 6085 6086 // Since it depends on the value of mLayout 6087 prepareCursorControllers(); 6088 } 6089 6090 /** 6091 * Make a new Layout based on the already-measured size of the view, 6092 * on the assumption that it was measured correctly at some point. 6093 */ 6094 private void assumeLayout() { 6095 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6096 6097 if (width < 1) { 6098 width = 0; 6099 } 6100 6101 int physicalWidth = width; 6102 6103 if (mHorizontallyScrolling) { 6104 width = VERY_WIDE; 6105 } 6106 6107 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 6108 physicalWidth, false); 6109 } 6110 6111 @Override 6112 protected void resetResolvedLayoutDirection() { 6113 super.resetResolvedLayoutDirection(); 6114 6115 if (mLayoutAlignment != null && 6116 (mTextAlign == TextAlign.VIEW_START || 6117 mTextAlign == TextAlign.VIEW_END)) { 6118 mLayoutAlignment = null; 6119 } 6120 } 6121 6122 private Layout.Alignment getLayoutAlignment() { 6123 if (mLayoutAlignment == null) { 6124 Layout.Alignment alignment; 6125 TextAlign textAlign = mTextAlign; 6126 switch (textAlign) { 6127 case INHERIT: 6128 // fall through to gravity temporarily 6129 // intention is to inherit value through view hierarchy. 6130 case GRAVITY: 6131 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 6132 case Gravity.START: 6133 alignment = Layout.Alignment.ALIGN_NORMAL; 6134 break; 6135 case Gravity.END: 6136 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6137 break; 6138 case Gravity.LEFT: 6139 alignment = Layout.Alignment.ALIGN_LEFT; 6140 break; 6141 case Gravity.RIGHT: 6142 alignment = Layout.Alignment.ALIGN_RIGHT; 6143 break; 6144 case Gravity.CENTER_HORIZONTAL: 6145 alignment = Layout.Alignment.ALIGN_CENTER; 6146 break; 6147 default: 6148 alignment = Layout.Alignment.ALIGN_NORMAL; 6149 break; 6150 } 6151 break; 6152 case TEXT_START: 6153 alignment = Layout.Alignment.ALIGN_NORMAL; 6154 break; 6155 case TEXT_END: 6156 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6157 break; 6158 case CENTER: 6159 alignment = Layout.Alignment.ALIGN_CENTER; 6160 break; 6161 case VIEW_START: 6162 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6163 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 6164 break; 6165 case VIEW_END: 6166 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6167 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 6168 break; 6169 default: 6170 alignment = Layout.Alignment.ALIGN_NORMAL; 6171 break; 6172 } 6173 mLayoutAlignment = alignment; 6174 } 6175 return mLayoutAlignment; 6176 } 6177 6178 /** 6179 * The width passed in is now the desired layout width, 6180 * not the full view width with padding. 6181 * {@hide} 6182 */ 6183 protected void makeNewLayout(int wantWidth, int hintWidth, 6184 BoringLayout.Metrics boring, 6185 BoringLayout.Metrics hintBoring, 6186 int ellipsisWidth, boolean bringIntoView) { 6187 stopMarquee(); 6188 6189 // Update "old" cached values 6190 mOldMaximum = mMaximum; 6191 mOldMaxMode = mMaxMode; 6192 6193 mHighlightPathBogus = true; 6194 6195 if (wantWidth < 0) { 6196 wantWidth = 0; 6197 } 6198 if (hintWidth < 0) { 6199 hintWidth = 0; 6200 } 6201 6202 Layout.Alignment alignment = getLayoutAlignment(); 6203 boolean shouldEllipsize = mEllipsize != null && mInput == null; 6204 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 6205 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 6206 TruncateAt effectiveEllipsize = mEllipsize; 6207 if (mEllipsize == TruncateAt.MARQUEE && 6208 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6209 effectiveEllipsize = TruncateAt.END_SMALL; 6210 } 6211 6212 if (mTextDir == null) { 6213 resolveTextDirection(); 6214 } 6215 6216 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 6217 effectiveEllipsize, effectiveEllipsize == mEllipsize); 6218 if (switchEllipsize) { 6219 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 6220 TruncateAt.END : TruncateAt.MARQUEE; 6221 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 6222 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 6223 } 6224 6225 shouldEllipsize = mEllipsize != null; 6226 mHintLayout = null; 6227 6228 if (mHint != null) { 6229 if (shouldEllipsize) hintWidth = wantWidth; 6230 6231 if (hintBoring == UNKNOWN_BORING) { 6232 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6233 mHintBoring); 6234 if (hintBoring != null) { 6235 mHintBoring = hintBoring; 6236 } 6237 } 6238 6239 if (hintBoring != null) { 6240 if (hintBoring.width <= hintWidth && 6241 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6242 if (mSavedHintLayout != null) { 6243 mHintLayout = mSavedHintLayout. 6244 replaceOrMake(mHint, mTextPaint, 6245 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6246 hintBoring, mIncludePad); 6247 } else { 6248 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6249 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6250 hintBoring, mIncludePad); 6251 } 6252 6253 mSavedHintLayout = (BoringLayout) mHintLayout; 6254 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6255 if (mSavedHintLayout != null) { 6256 mHintLayout = mSavedHintLayout. 6257 replaceOrMake(mHint, mTextPaint, 6258 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6259 hintBoring, mIncludePad, mEllipsize, 6260 ellipsisWidth); 6261 } else { 6262 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6263 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6264 hintBoring, mIncludePad, mEllipsize, 6265 ellipsisWidth); 6266 } 6267 } else if (shouldEllipsize) { 6268 mHintLayout = new StaticLayout(mHint, 6269 0, mHint.length(), 6270 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6271 mSpacingAdd, mIncludePad, mEllipsize, 6272 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6273 } else { 6274 mHintLayout = new StaticLayout(mHint, mTextPaint, 6275 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6276 mIncludePad); 6277 } 6278 } else if (shouldEllipsize) { 6279 mHintLayout = new StaticLayout(mHint, 6280 0, mHint.length(), 6281 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6282 mSpacingAdd, mIncludePad, mEllipsize, 6283 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6284 } else { 6285 mHintLayout = new StaticLayout(mHint, mTextPaint, 6286 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6287 mIncludePad); 6288 } 6289 } 6290 6291 if (bringIntoView) { 6292 registerForPreDraw(); 6293 } 6294 6295 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6296 if (!compressText(ellipsisWidth)) { 6297 final int height = mLayoutParams.height; 6298 // If the size of the view does not depend on the size of the text, try to 6299 // start the marquee immediately 6300 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6301 startMarquee(); 6302 } else { 6303 // Defer the start of the marquee until we know our width (see setFrame()) 6304 mRestartMarquee = true; 6305 } 6306 } 6307 } 6308 6309 // CursorControllers need a non-null mLayout 6310 prepareCursorControllers(); 6311 } 6312 6313 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 6314 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 6315 boolean useSaved) { 6316 Layout result = null; 6317 if (mText instanceof Spannable) { 6318 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 6319 alignment, mTextDir, mSpacingMult, 6320 mSpacingAdd, mIncludePad, mInput == null ? effectiveEllipsize : null, 6321 ellipsisWidth); 6322 } else { 6323 if (boring == UNKNOWN_BORING) { 6324 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6325 if (boring != null) { 6326 mBoring = boring; 6327 } 6328 } 6329 6330 if (boring != null) { 6331 if (boring.width <= wantWidth && 6332 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 6333 if (useSaved && mSavedLayout != null) { 6334 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6335 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6336 boring, mIncludePad); 6337 } else { 6338 result = BoringLayout.make(mTransformed, mTextPaint, 6339 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6340 boring, mIncludePad); 6341 } 6342 6343 if (useSaved) { 6344 mSavedLayout = (BoringLayout) result; 6345 } 6346 } else if (shouldEllipsize && boring.width <= wantWidth) { 6347 if (useSaved && mSavedLayout != null) { 6348 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6349 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6350 boring, mIncludePad, effectiveEllipsize, 6351 ellipsisWidth); 6352 } else { 6353 result = BoringLayout.make(mTransformed, mTextPaint, 6354 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6355 boring, mIncludePad, effectiveEllipsize, 6356 ellipsisWidth); 6357 } 6358 } else if (shouldEllipsize) { 6359 result = new StaticLayout(mTransformed, 6360 0, mTransformed.length(), 6361 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6362 mSpacingAdd, mIncludePad, effectiveEllipsize, 6363 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6364 } else { 6365 result = new StaticLayout(mTransformed, mTextPaint, 6366 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6367 mIncludePad); 6368 } 6369 } else if (shouldEllipsize) { 6370 result = new StaticLayout(mTransformed, 6371 0, mTransformed.length(), 6372 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6373 mSpacingAdd, mIncludePad, effectiveEllipsize, 6374 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6375 } else { 6376 result = new StaticLayout(mTransformed, mTextPaint, 6377 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6378 mIncludePad); 6379 } 6380 } 6381 return result; 6382 } 6383 6384 private boolean compressText(float width) { 6385 if (isHardwareAccelerated()) return false; 6386 6387 // Only compress the text if it hasn't been compressed by the previous pass 6388 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6389 mTextPaint.getTextScaleX() == 1.0f) { 6390 final float textWidth = mLayout.getLineWidth(0); 6391 final float overflow = (textWidth + 1.0f - width) / width; 6392 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6393 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6394 post(new Runnable() { 6395 public void run() { 6396 requestLayout(); 6397 } 6398 }); 6399 return true; 6400 } 6401 } 6402 6403 return false; 6404 } 6405 6406 private static int desired(Layout layout) { 6407 int n = layout.getLineCount(); 6408 CharSequence text = layout.getText(); 6409 float max = 0; 6410 6411 // if any line was wrapped, we can't use it. 6412 // but it's ok for the last line not to have a newline 6413 6414 for (int i = 0; i < n - 1; i++) { 6415 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6416 return -1; 6417 } 6418 6419 for (int i = 0; i < n; i++) { 6420 max = Math.max(max, layout.getLineWidth(i)); 6421 } 6422 6423 return (int) FloatMath.ceil(max); 6424 } 6425 6426 /** 6427 * Set whether the TextView includes extra top and bottom padding to make 6428 * room for accents that go above the normal ascent and descent. 6429 * The default is true. 6430 * 6431 * @attr ref android.R.styleable#TextView_includeFontPadding 6432 */ 6433 public void setIncludeFontPadding(boolean includepad) { 6434 if (mIncludePad != includepad) { 6435 mIncludePad = includepad; 6436 6437 if (mLayout != null) { 6438 nullLayouts(); 6439 requestLayout(); 6440 invalidate(); 6441 } 6442 } 6443 } 6444 6445 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6446 6447 @Override 6448 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6449 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6450 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6451 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6452 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6453 6454 int width; 6455 int height; 6456 6457 BoringLayout.Metrics boring = UNKNOWN_BORING; 6458 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6459 6460 if (mTextDir == null) { 6461 resolveTextDirection(); 6462 } 6463 6464 int des = -1; 6465 boolean fromexisting = false; 6466 6467 if (widthMode == MeasureSpec.EXACTLY) { 6468 // Parent has told us how big to be. So be it. 6469 width = widthSize; 6470 } else { 6471 if (mLayout != null && mEllipsize == null) { 6472 des = desired(mLayout); 6473 } 6474 6475 if (des < 0) { 6476 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6477 if (boring != null) { 6478 mBoring = boring; 6479 } 6480 } else { 6481 fromexisting = true; 6482 } 6483 6484 if (boring == null || boring == UNKNOWN_BORING) { 6485 if (des < 0) { 6486 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6487 } 6488 6489 width = des; 6490 } else { 6491 width = boring.width; 6492 } 6493 6494 final Drawables dr = mDrawables; 6495 if (dr != null) { 6496 width = Math.max(width, dr.mDrawableWidthTop); 6497 width = Math.max(width, dr.mDrawableWidthBottom); 6498 } 6499 6500 if (mHint != null) { 6501 int hintDes = -1; 6502 int hintWidth; 6503 6504 if (mHintLayout != null && mEllipsize == null) { 6505 hintDes = desired(mHintLayout); 6506 } 6507 6508 if (hintDes < 0) { 6509 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 6510 if (hintBoring != null) { 6511 mHintBoring = hintBoring; 6512 } 6513 } 6514 6515 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6516 if (hintDes < 0) { 6517 hintDes = (int) FloatMath.ceil( 6518 Layout.getDesiredWidth(mHint, mTextPaint)); 6519 } 6520 6521 hintWidth = hintDes; 6522 } else { 6523 hintWidth = hintBoring.width; 6524 } 6525 6526 if (hintWidth > width) { 6527 width = hintWidth; 6528 } 6529 } 6530 6531 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6532 6533 if (mMaxWidthMode == EMS) { 6534 width = Math.min(width, mMaxWidth * getLineHeight()); 6535 } else { 6536 width = Math.min(width, mMaxWidth); 6537 } 6538 6539 if (mMinWidthMode == EMS) { 6540 width = Math.max(width, mMinWidth * getLineHeight()); 6541 } else { 6542 width = Math.max(width, mMinWidth); 6543 } 6544 6545 // Check against our minimum width 6546 width = Math.max(width, getSuggestedMinimumWidth()); 6547 6548 if (widthMode == MeasureSpec.AT_MOST) { 6549 width = Math.min(widthSize, width); 6550 } 6551 } 6552 6553 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6554 int unpaddedWidth = want; 6555 6556 if (mHorizontallyScrolling) want = VERY_WIDE; 6557 6558 int hintWant = want; 6559 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6560 6561 if (mLayout == null) { 6562 makeNewLayout(want, hintWant, boring, hintBoring, 6563 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6564 } else { 6565 final boolean layoutChanged = (mLayout.getWidth() != want) || 6566 (hintWidth != hintWant) || 6567 (mLayout.getEllipsizedWidth() != 6568 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6569 6570 final boolean widthChanged = (mHint == null) && 6571 (mEllipsize == null) && 6572 (want > mLayout.getWidth()) && 6573 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6574 6575 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6576 6577 if (layoutChanged || maximumChanged) { 6578 if (!maximumChanged && widthChanged) { 6579 mLayout.increaseWidthTo(want); 6580 } else { 6581 makeNewLayout(want, hintWant, boring, hintBoring, 6582 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6583 } 6584 } else { 6585 // Nothing has changed 6586 } 6587 } 6588 6589 if (heightMode == MeasureSpec.EXACTLY) { 6590 // Parent has told us how big to be. So be it. 6591 height = heightSize; 6592 mDesiredHeightAtMeasure = -1; 6593 } else { 6594 int desired = getDesiredHeight(); 6595 6596 height = desired; 6597 mDesiredHeightAtMeasure = desired; 6598 6599 if (heightMode == MeasureSpec.AT_MOST) { 6600 height = Math.min(desired, heightSize); 6601 } 6602 } 6603 6604 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6605 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6606 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6607 } 6608 6609 /* 6610 * We didn't let makeNewLayout() register to bring the cursor into view, 6611 * so do it here if there is any possibility that it is needed. 6612 */ 6613 if (mMovement != null || 6614 mLayout.getWidth() > unpaddedWidth || 6615 mLayout.getHeight() > unpaddedHeight) { 6616 registerForPreDraw(); 6617 } else { 6618 scrollTo(0, 0); 6619 } 6620 6621 setMeasuredDimension(width, height); 6622 } 6623 6624 private int getDesiredHeight() { 6625 return Math.max( 6626 getDesiredHeight(mLayout, true), 6627 getDesiredHeight(mHintLayout, mEllipsize != null)); 6628 } 6629 6630 private int getDesiredHeight(Layout layout, boolean cap) { 6631 if (layout == null) { 6632 return 0; 6633 } 6634 6635 int linecount = layout.getLineCount(); 6636 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6637 int desired = layout.getLineTop(linecount); 6638 6639 final Drawables dr = mDrawables; 6640 if (dr != null) { 6641 desired = Math.max(desired, dr.mDrawableHeightLeft); 6642 desired = Math.max(desired, dr.mDrawableHeightRight); 6643 } 6644 6645 desired += pad; 6646 6647 if (mMaxMode == LINES) { 6648 /* 6649 * Don't cap the hint to a certain number of lines. 6650 * (Do cap it, though, if we have a maximum pixel height.) 6651 */ 6652 if (cap) { 6653 if (linecount > mMaximum) { 6654 desired = layout.getLineTop(mMaximum); 6655 6656 if (dr != null) { 6657 desired = Math.max(desired, dr.mDrawableHeightLeft); 6658 desired = Math.max(desired, dr.mDrawableHeightRight); 6659 } 6660 6661 desired += pad; 6662 linecount = mMaximum; 6663 } 6664 } 6665 } else { 6666 desired = Math.min(desired, mMaximum); 6667 } 6668 6669 if (mMinMode == LINES) { 6670 if (linecount < mMinimum) { 6671 desired += getLineHeight() * (mMinimum - linecount); 6672 } 6673 } else { 6674 desired = Math.max(desired, mMinimum); 6675 } 6676 6677 // Check against our minimum height 6678 desired = Math.max(desired, getSuggestedMinimumHeight()); 6679 6680 return desired; 6681 } 6682 6683 /** 6684 * Check whether a change to the existing text layout requires a 6685 * new view layout. 6686 */ 6687 private void checkForResize() { 6688 boolean sizeChanged = false; 6689 6690 if (mLayout != null) { 6691 // Check if our width changed 6692 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6693 sizeChanged = true; 6694 invalidate(); 6695 } 6696 6697 // Check if our height changed 6698 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6699 int desiredHeight = getDesiredHeight(); 6700 6701 if (desiredHeight != this.getHeight()) { 6702 sizeChanged = true; 6703 } 6704 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6705 if (mDesiredHeightAtMeasure >= 0) { 6706 int desiredHeight = getDesiredHeight(); 6707 6708 if (desiredHeight != mDesiredHeightAtMeasure) { 6709 sizeChanged = true; 6710 } 6711 } 6712 } 6713 } 6714 6715 if (sizeChanged) { 6716 requestLayout(); 6717 // caller will have already invalidated 6718 } 6719 } 6720 6721 /** 6722 * Check whether entirely new text requires a new view layout 6723 * or merely a new text layout. 6724 */ 6725 private void checkForRelayout() { 6726 // If we have a fixed width, we can just swap in a new text layout 6727 // if the text height stays the same or if the view height is fixed. 6728 6729 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6730 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6731 (mHint == null || mHintLayout != null) && 6732 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6733 // Static width, so try making a new text layout. 6734 6735 int oldht = mLayout.getHeight(); 6736 int want = mLayout.getWidth(); 6737 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6738 6739 /* 6740 * No need to bring the text into view, since the size is not 6741 * changing (unless we do the requestLayout(), in which case it 6742 * will happen at measure). 6743 */ 6744 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6745 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6746 false); 6747 6748 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6749 // In a fixed-height view, so use our new text layout. 6750 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6751 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6752 invalidate(); 6753 return; 6754 } 6755 6756 // Dynamic height, but height has stayed the same, 6757 // so use our new text layout. 6758 if (mLayout.getHeight() == oldht && 6759 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6760 invalidate(); 6761 return; 6762 } 6763 } 6764 6765 // We lose: the height has changed and we have a dynamic height. 6766 // Request a new view layout using our new text layout. 6767 requestLayout(); 6768 invalidate(); 6769 } else { 6770 // Dynamic width, so we have no choice but to request a new 6771 // view layout with a new text layout. 6772 nullLayouts(); 6773 requestLayout(); 6774 invalidate(); 6775 } 6776 } 6777 6778 /** 6779 * Returns true if anything changed. 6780 */ 6781 private boolean bringTextIntoView() { 6782 int line = 0; 6783 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6784 line = mLayout.getLineCount() - 1; 6785 } 6786 6787 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6788 int dir = mLayout.getParagraphDirection(line); 6789 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6790 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6791 int ht = mLayout.getHeight(); 6792 6793 int scrollx, scrolly; 6794 6795 // Convert to left, center, or right alignment. 6796 if (a == Layout.Alignment.ALIGN_NORMAL) { 6797 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6798 Layout.Alignment.ALIGN_RIGHT; 6799 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6800 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6801 Layout.Alignment.ALIGN_LEFT; 6802 } 6803 6804 if (a == Layout.Alignment.ALIGN_CENTER) { 6805 /* 6806 * Keep centered if possible, or, if it is too wide to fit, 6807 * keep leading edge in view. 6808 */ 6809 6810 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6811 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6812 6813 if (right - left < hspace) { 6814 scrollx = (right + left) / 2 - hspace / 2; 6815 } else { 6816 if (dir < 0) { 6817 scrollx = right - hspace; 6818 } else { 6819 scrollx = left; 6820 } 6821 } 6822 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6823 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6824 scrollx = right - hspace; 6825 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6826 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6827 } 6828 6829 if (ht < vspace) { 6830 scrolly = 0; 6831 } else { 6832 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6833 scrolly = ht - vspace; 6834 } else { 6835 scrolly = 0; 6836 } 6837 } 6838 6839 if (scrollx != mScrollX || scrolly != mScrollY) { 6840 scrollTo(scrollx, scrolly); 6841 return true; 6842 } else { 6843 return false; 6844 } 6845 } 6846 6847 /** 6848 * Move the point, specified by the offset, into the view if it is needed. 6849 * This has to be called after layout. Returns true if anything changed. 6850 */ 6851 public boolean bringPointIntoView(int offset) { 6852 boolean changed = false; 6853 6854 if (mLayout == null) return changed; 6855 6856 int line = mLayout.getLineForOffset(offset); 6857 6858 // FIXME: Is it okay to truncate this, or should we round? 6859 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6860 final int top = mLayout.getLineTop(line); 6861 final int bottom = mLayout.getLineTop(line + 1); 6862 6863 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6864 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6865 int ht = mLayout.getHeight(); 6866 6867 int grav; 6868 6869 switch (mLayout.getParagraphAlignment(line)) { 6870 case ALIGN_LEFT: 6871 grav = 1; 6872 break; 6873 case ALIGN_RIGHT: 6874 grav = -1; 6875 break; 6876 case ALIGN_NORMAL: 6877 grav = mLayout.getParagraphDirection(line); 6878 break; 6879 case ALIGN_OPPOSITE: 6880 grav = -mLayout.getParagraphDirection(line); 6881 break; 6882 case ALIGN_CENTER: 6883 default: 6884 grav = 0; 6885 break; 6886 } 6887 6888 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6889 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6890 6891 int hslack = (bottom - top) / 2; 6892 int vslack = hslack; 6893 6894 if (vslack > vspace / 4) 6895 vslack = vspace / 4; 6896 if (hslack > hspace / 4) 6897 hslack = hspace / 4; 6898 6899 int hs = mScrollX; 6900 int vs = mScrollY; 6901 6902 if (top - vs < vslack) 6903 vs = top - vslack; 6904 if (bottom - vs > vspace - vslack) 6905 vs = bottom - (vspace - vslack); 6906 if (ht - vs < vspace) 6907 vs = ht - vspace; 6908 if (0 - vs > 0) 6909 vs = 0; 6910 6911 if (grav != 0) { 6912 if (x - hs < hslack) { 6913 hs = x - hslack; 6914 } 6915 if (x - hs > hspace - hslack) { 6916 hs = x - (hspace - hslack); 6917 } 6918 } 6919 6920 if (grav < 0) { 6921 if (left - hs > 0) 6922 hs = left; 6923 if (right - hs < hspace) 6924 hs = right - hspace; 6925 } else if (grav > 0) { 6926 if (right - hs < hspace) 6927 hs = right - hspace; 6928 if (left - hs > 0) 6929 hs = left; 6930 } else /* grav == 0 */ { 6931 if (right - left <= hspace) { 6932 /* 6933 * If the entire text fits, center it exactly. 6934 */ 6935 hs = left - (hspace - (right - left)) / 2; 6936 } else if (x > right - hslack) { 6937 /* 6938 * If we are near the right edge, keep the right edge 6939 * at the edge of the view. 6940 */ 6941 hs = right - hspace; 6942 } else if (x < left + hslack) { 6943 /* 6944 * If we are near the left edge, keep the left edge 6945 * at the edge of the view. 6946 */ 6947 hs = left; 6948 } else if (left > hs) { 6949 /* 6950 * Is there whitespace visible at the left? Fix it if so. 6951 */ 6952 hs = left; 6953 } else if (right < hs + hspace) { 6954 /* 6955 * Is there whitespace visible at the right? Fix it if so. 6956 */ 6957 hs = right - hspace; 6958 } else { 6959 /* 6960 * Otherwise, float as needed. 6961 */ 6962 if (x - hs < hslack) { 6963 hs = x - hslack; 6964 } 6965 if (x - hs > hspace - hslack) { 6966 hs = x - (hspace - hslack); 6967 } 6968 } 6969 } 6970 6971 if (hs != mScrollX || vs != mScrollY) { 6972 if (mScroller == null) { 6973 scrollTo(hs, vs); 6974 } else { 6975 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6976 int dx = hs - mScrollX; 6977 int dy = vs - mScrollY; 6978 6979 if (duration > ANIMATED_SCROLL_GAP) { 6980 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6981 awakenScrollBars(mScroller.getDuration()); 6982 invalidate(); 6983 } else { 6984 if (!mScroller.isFinished()) { 6985 mScroller.abortAnimation(); 6986 } 6987 6988 scrollBy(dx, dy); 6989 } 6990 6991 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6992 } 6993 6994 changed = true; 6995 } 6996 6997 if (isFocused()) { 6998 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6999 // requestRectangleOnScreen() is in terms of content coordinates. 7000 7001 if (mTempRect == null) mTempRect = new Rect(); 7002 // The offsets here are to ensure the rectangle we are using is 7003 // within our view bounds, in case the cursor is on the far left 7004 // or right. If it isn't withing the bounds, then this request 7005 // will be ignored. 7006 mTempRect.set(x - 2, top, x + 2, bottom); 7007 getInterestingRect(mTempRect, line); 7008 mTempRect.offset(mScrollX, mScrollY); 7009 7010 if (requestRectangleOnScreen(mTempRect)) { 7011 changed = true; 7012 } 7013 } 7014 7015 return changed; 7016 } 7017 7018 /** 7019 * Move the cursor, if needed, so that it is at an offset that is visible 7020 * to the user. This will not move the cursor if it represents more than 7021 * one character (a selection range). This will only work if the 7022 * TextView contains spannable text; otherwise it will do nothing. 7023 * 7024 * @return True if the cursor was actually moved, false otherwise. 7025 */ 7026 public boolean moveCursorToVisibleOffset() { 7027 if (!(mText instanceof Spannable)) { 7028 return false; 7029 } 7030 int start = getSelectionStart(); 7031 int end = getSelectionEnd(); 7032 if (start != end) { 7033 return false; 7034 } 7035 7036 // First: make sure the line is visible on screen: 7037 7038 int line = mLayout.getLineForOffset(start); 7039 7040 final int top = mLayout.getLineTop(line); 7041 final int bottom = mLayout.getLineTop(line + 1); 7042 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 7043 int vslack = (bottom - top) / 2; 7044 if (vslack > vspace / 4) 7045 vslack = vspace / 4; 7046 final int vs = mScrollY; 7047 7048 if (top < (vs+vslack)) { 7049 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 7050 } else if (bottom > (vspace+vs-vslack)) { 7051 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 7052 } 7053 7054 // Next: make sure the character is visible on screen: 7055 7056 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7057 final int hs = mScrollX; 7058 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 7059 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 7060 7061 // line might contain bidirectional text 7062 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 7063 final int highChar = leftChar > rightChar ? leftChar : rightChar; 7064 7065 int newStart = start; 7066 if (newStart < lowChar) { 7067 newStart = lowChar; 7068 } else if (newStart > highChar) { 7069 newStart = highChar; 7070 } 7071 7072 if (newStart != start) { 7073 Selection.setSelection((Spannable)mText, newStart); 7074 return true; 7075 } 7076 7077 return false; 7078 } 7079 7080 @Override 7081 public void computeScroll() { 7082 if (mScroller != null) { 7083 if (mScroller.computeScrollOffset()) { 7084 mScrollX = mScroller.getCurrX(); 7085 mScrollY = mScroller.getCurrY(); 7086 invalidateParentCaches(); 7087 postInvalidate(); // So we draw again 7088 } 7089 } 7090 } 7091 7092 private void getInterestingRect(Rect r, int line) { 7093 convertFromViewportToContentCoordinates(r); 7094 7095 // Rectangle can can be expanded on first and last line to take 7096 // padding into account. 7097 // TODO Take left/right padding into account too? 7098 if (line == 0) r.top -= getExtendedPaddingTop(); 7099 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 7100 } 7101 7102 private void convertFromViewportToContentCoordinates(Rect r) { 7103 final int horizontalOffset = viewportToContentHorizontalOffset(); 7104 r.left += horizontalOffset; 7105 r.right += horizontalOffset; 7106 7107 final int verticalOffset = viewportToContentVerticalOffset(); 7108 r.top += verticalOffset; 7109 r.bottom += verticalOffset; 7110 } 7111 7112 private int viewportToContentHorizontalOffset() { 7113 return getCompoundPaddingLeft() - mScrollX; 7114 } 7115 7116 private int viewportToContentVerticalOffset() { 7117 int offset = getExtendedPaddingTop() - mScrollY; 7118 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7119 offset += getVerticalOffset(false); 7120 } 7121 return offset; 7122 } 7123 7124 @Override 7125 public void debug(int depth) { 7126 super.debug(depth); 7127 7128 String output = debugIndent(depth); 7129 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 7130 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 7131 + "} "; 7132 7133 if (mText != null) { 7134 7135 output += "mText=\"" + mText + "\" "; 7136 if (mLayout != null) { 7137 output += "mLayout width=" + mLayout.getWidth() 7138 + " height=" + mLayout.getHeight(); 7139 } 7140 } else { 7141 output += "mText=NULL"; 7142 } 7143 Log.d(VIEW_LOG_TAG, output); 7144 } 7145 7146 /** 7147 * Convenience for {@link Selection#getSelectionStart}. 7148 */ 7149 @ViewDebug.ExportedProperty(category = "text") 7150 public int getSelectionStart() { 7151 return Selection.getSelectionStart(getText()); 7152 } 7153 7154 /** 7155 * Convenience for {@link Selection#getSelectionEnd}. 7156 */ 7157 @ViewDebug.ExportedProperty(category = "text") 7158 public int getSelectionEnd() { 7159 return Selection.getSelectionEnd(getText()); 7160 } 7161 7162 /** 7163 * Return true iff there is a selection inside this text view. 7164 */ 7165 public boolean hasSelection() { 7166 final int selectionStart = getSelectionStart(); 7167 final int selectionEnd = getSelectionEnd(); 7168 7169 return selectionStart >= 0 && selectionStart != selectionEnd; 7170 } 7171 7172 /** 7173 * Sets the properties of this field (lines, horizontally scrolling, 7174 * transformation method) to be for a single-line input. 7175 * 7176 * @attr ref android.R.styleable#TextView_singleLine 7177 */ 7178 public void setSingleLine() { 7179 setSingleLine(true); 7180 } 7181 7182 /** 7183 * Sets the properties of this field to transform input to ALL CAPS 7184 * display. This may use a "small caps" formatting if available. 7185 * This setting will be ignored if this field is editable or selectable. 7186 * 7187 * This call replaces the current transformation method. Disabling this 7188 * will not necessarily restore the previous behavior from before this 7189 * was enabled. 7190 * 7191 * @see #setTransformationMethod(TransformationMethod) 7192 * @attr ref android.R.styleable#TextView_textAllCaps 7193 */ 7194 public void setAllCaps(boolean allCaps) { 7195 if (allCaps) { 7196 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7197 } else { 7198 setTransformationMethod(null); 7199 } 7200 } 7201 7202 /** 7203 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7204 * transformation method) to be for a single-line input; if false, restores these to the default 7205 * conditions. 7206 * 7207 * Note that the default conditions are not necessarily those that were in effect prior this 7208 * method, and you may want to reset these properties to your custom values. 7209 * 7210 * @attr ref android.R.styleable#TextView_singleLine 7211 */ 7212 @android.view.RemotableViewMethod 7213 public void setSingleLine(boolean singleLine) { 7214 // Could be used, but may break backward compatibility. 7215 // if (mSingleLine == singleLine) return; 7216 setInputTypeSingleLine(singleLine); 7217 applySingleLine(singleLine, true, true); 7218 } 7219 7220 /** 7221 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7222 * @param singleLine 7223 */ 7224 private void setInputTypeSingleLine(boolean singleLine) { 7225 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7226 if (singleLine) { 7227 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7228 } else { 7229 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7230 } 7231 } 7232 } 7233 7234 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7235 boolean changeMaxLines) { 7236 mSingleLine = singleLine; 7237 if (singleLine) { 7238 setLines(1); 7239 setHorizontallyScrolling(true); 7240 if (applyTransformation) { 7241 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7242 } 7243 } else { 7244 if (changeMaxLines) { 7245 setMaxLines(Integer.MAX_VALUE); 7246 } 7247 setHorizontallyScrolling(false); 7248 if (applyTransformation) { 7249 setTransformationMethod(null); 7250 } 7251 } 7252 } 7253 7254 /** 7255 * Causes words in the text that are longer than the view is wide 7256 * to be ellipsized instead of broken in the middle. You may also 7257 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7258 * to constrain the text to a single line. Use <code>null</code> 7259 * to turn off ellipsizing. 7260 * 7261 * If {@link #setMaxLines} has been used to set two or more lines, 7262 * {@link android.text.TextUtils.TruncateAt#END} and 7263 * {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported 7264 * (other ellipsizing types will not do anything). 7265 * 7266 * @attr ref android.R.styleable#TextView_ellipsize 7267 */ 7268 public void setEllipsize(TextUtils.TruncateAt where) { 7269 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7270 if (mEllipsize != where) { 7271 mEllipsize = where; 7272 7273 if (mLayout != null) { 7274 nullLayouts(); 7275 requestLayout(); 7276 invalidate(); 7277 } 7278 } 7279 } 7280 7281 /** 7282 * Sets how many times to repeat the marquee animation. Only applied if the 7283 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7284 * 7285 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7286 */ 7287 public void setMarqueeRepeatLimit(int marqueeLimit) { 7288 mMarqueeRepeatLimit = marqueeLimit; 7289 } 7290 7291 /** 7292 * Returns where, if anywhere, words that are longer than the view 7293 * is wide should be ellipsized. 7294 */ 7295 @ViewDebug.ExportedProperty 7296 public TextUtils.TruncateAt getEllipsize() { 7297 return mEllipsize; 7298 } 7299 7300 /** 7301 * Set the TextView so that when it takes focus, all the text is 7302 * selected. 7303 * 7304 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7305 */ 7306 @android.view.RemotableViewMethod 7307 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7308 mSelectAllOnFocus = selectAllOnFocus; 7309 7310 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7311 setText(mText, BufferType.SPANNABLE); 7312 } 7313 } 7314 7315 /** 7316 * Set whether the cursor is visible. The default is true. 7317 * 7318 * @attr ref android.R.styleable#TextView_cursorVisible 7319 */ 7320 @android.view.RemotableViewMethod 7321 public void setCursorVisible(boolean visible) { 7322 if (mCursorVisible != visible) { 7323 mCursorVisible = visible; 7324 invalidate(); 7325 7326 makeBlink(); 7327 7328 // InsertionPointCursorController depends on mCursorVisible 7329 prepareCursorControllers(); 7330 } 7331 } 7332 7333 private boolean isCursorVisible() { 7334 return mCursorVisible && isTextEditable(); 7335 } 7336 7337 private boolean canMarquee() { 7338 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7339 return width > 0 && (mLayout.getLineWidth(0) > width || 7340 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 7341 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 7342 } 7343 7344 private void startMarquee() { 7345 // Do not ellipsize EditText 7346 if (mInput != null) return; 7347 7348 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7349 return; 7350 } 7351 7352 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7353 getLineCount() == 1 && canMarquee()) { 7354 7355 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7356 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 7357 final Layout tmp = mLayout; 7358 mLayout = mSavedMarqueeModeLayout; 7359 mSavedMarqueeModeLayout = tmp; 7360 setHorizontalFadingEdgeEnabled(true); 7361 requestLayout(); 7362 invalidate(); 7363 } 7364 7365 if (mMarquee == null) mMarquee = new Marquee(this); 7366 mMarquee.start(mMarqueeRepeatLimit); 7367 } 7368 } 7369 7370 private void stopMarquee() { 7371 if (mMarquee != null && !mMarquee.isStopped()) { 7372 mMarquee.stop(); 7373 } 7374 7375 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 7376 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 7377 final Layout tmp = mSavedMarqueeModeLayout; 7378 mSavedMarqueeModeLayout = mLayout; 7379 mLayout = tmp; 7380 setHorizontalFadingEdgeEnabled(false); 7381 requestLayout(); 7382 invalidate(); 7383 } 7384 } 7385 7386 private void startStopMarquee(boolean start) { 7387 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7388 if (start) { 7389 startMarquee(); 7390 } else { 7391 stopMarquee(); 7392 } 7393 } 7394 } 7395 7396 private static final class Marquee extends Handler { 7397 // TODO: Add an option to configure this 7398 private static final float MARQUEE_DELTA_MAX = 0.07f; 7399 private static final int MARQUEE_DELAY = 1200; 7400 private static final int MARQUEE_RESTART_DELAY = 1200; 7401 private static final int MARQUEE_RESOLUTION = 1000 / 30; 7402 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 7403 7404 private static final byte MARQUEE_STOPPED = 0x0; 7405 private static final byte MARQUEE_STARTING = 0x1; 7406 private static final byte MARQUEE_RUNNING = 0x2; 7407 7408 private static final int MESSAGE_START = 0x1; 7409 private static final int MESSAGE_TICK = 0x2; 7410 private static final int MESSAGE_RESTART = 0x3; 7411 7412 private final WeakReference<TextView> mView; 7413 7414 private byte mStatus = MARQUEE_STOPPED; 7415 private final float mScrollUnit; 7416 private float mMaxScroll; 7417 float mMaxFadeScroll; 7418 private float mGhostStart; 7419 private float mGhostOffset; 7420 private float mFadeStop; 7421 private int mRepeatLimit; 7422 7423 float mScroll; 7424 7425 Marquee(TextView v) { 7426 final float density = v.getContext().getResources().getDisplayMetrics().density; 7427 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 7428 mView = new WeakReference<TextView>(v); 7429 } 7430 7431 @Override 7432 public void handleMessage(Message msg) { 7433 switch (msg.what) { 7434 case MESSAGE_START: 7435 mStatus = MARQUEE_RUNNING; 7436 tick(); 7437 break; 7438 case MESSAGE_TICK: 7439 tick(); 7440 break; 7441 case MESSAGE_RESTART: 7442 if (mStatus == MARQUEE_RUNNING) { 7443 if (mRepeatLimit >= 0) { 7444 mRepeatLimit--; 7445 } 7446 start(mRepeatLimit); 7447 } 7448 break; 7449 } 7450 } 7451 7452 void tick() { 7453 if (mStatus != MARQUEE_RUNNING) { 7454 return; 7455 } 7456 7457 removeMessages(MESSAGE_TICK); 7458 7459 final TextView textView = mView.get(); 7460 if (textView != null && (textView.isFocused() || textView.isSelected())) { 7461 mScroll += mScrollUnit; 7462 if (mScroll > mMaxScroll) { 7463 mScroll = mMaxScroll; 7464 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 7465 } else { 7466 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 7467 } 7468 textView.invalidate(); 7469 } 7470 } 7471 7472 void stop() { 7473 mStatus = MARQUEE_STOPPED; 7474 removeMessages(MESSAGE_START); 7475 removeMessages(MESSAGE_RESTART); 7476 removeMessages(MESSAGE_TICK); 7477 resetScroll(); 7478 } 7479 7480 private void resetScroll() { 7481 mScroll = 0.0f; 7482 final TextView textView = mView.get(); 7483 if (textView != null) textView.invalidate(); 7484 } 7485 7486 void start(int repeatLimit) { 7487 if (repeatLimit == 0) { 7488 stop(); 7489 return; 7490 } 7491 mRepeatLimit = repeatLimit; 7492 final TextView textView = mView.get(); 7493 if (textView != null && textView.mLayout != null) { 7494 mStatus = MARQUEE_STARTING; 7495 mScroll = 0.0f; 7496 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 7497 textView.getCompoundPaddingRight(); 7498 final float lineWidth = textView.mLayout.getLineWidth(0); 7499 final float gap = textWidth / 3.0f; 7500 mGhostStart = lineWidth - textWidth + gap; 7501 mMaxScroll = mGhostStart + textWidth; 7502 mGhostOffset = lineWidth + gap; 7503 mFadeStop = lineWidth + textWidth / 6.0f; 7504 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 7505 7506 textView.invalidate(); 7507 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 7508 } 7509 } 7510 7511 float getGhostOffset() { 7512 return mGhostOffset; 7513 } 7514 7515 boolean shouldDrawLeftFade() { 7516 return mScroll <= mFadeStop; 7517 } 7518 7519 boolean shouldDrawGhost() { 7520 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 7521 } 7522 7523 boolean isRunning() { 7524 return mStatus == MARQUEE_RUNNING; 7525 } 7526 7527 boolean isStopped() { 7528 return mStatus == MARQUEE_STOPPED; 7529 } 7530 } 7531 7532 /** 7533 * This method is called when the text is changed, in case any subclasses 7534 * would like to know. 7535 * 7536 * Within <code>text</code>, the <code>lengthAfter</code> characters 7537 * beginning at <code>start</code> have just replaced old text that had 7538 * length <code>lengthBefore</code>. It is an error to attempt to make 7539 * changes to <code>text</code> from this callback. 7540 * 7541 * @param text The text the TextView is displaying 7542 * @param start The offset of the start of the range of the text that was 7543 * modified 7544 * @param lengthBefore The length of the former text that has been replaced 7545 * @param lengthAfter The length of the replacement modified text 7546 */ 7547 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7548 // intentionally empty, template pattern method can be overridden by subclasses 7549 } 7550 7551 /** 7552 * This method is called when the selection has changed, in case any 7553 * subclasses would like to know. 7554 * 7555 * @param selStart The new selection start location. 7556 * @param selEnd The new selection end location. 7557 */ 7558 protected void onSelectionChanged(int selStart, int selEnd) { 7559 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7560 } 7561 7562 /** 7563 * Adds a TextWatcher to the list of those whose methods are called 7564 * whenever this TextView's text changes. 7565 * <p> 7566 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7567 * not called after {@link #setText} calls. Now, doing {@link #setText} 7568 * if there are any text changed listeners forces the buffer type to 7569 * Editable if it would not otherwise be and does call this method. 7570 */ 7571 public void addTextChangedListener(TextWatcher watcher) { 7572 if (mListeners == null) { 7573 mListeners = new ArrayList<TextWatcher>(); 7574 } 7575 7576 mListeners.add(watcher); 7577 } 7578 7579 /** 7580 * Removes the specified TextWatcher from the list of those whose 7581 * methods are called 7582 * whenever this TextView's text changes. 7583 */ 7584 public void removeTextChangedListener(TextWatcher watcher) { 7585 if (mListeners != null) { 7586 int i = mListeners.indexOf(watcher); 7587 7588 if (i >= 0) { 7589 mListeners.remove(i); 7590 } 7591 } 7592 } 7593 7594 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7595 if (mListeners != null) { 7596 final ArrayList<TextWatcher> list = mListeners; 7597 final int count = list.size(); 7598 for (int i = 0; i < count; i++) { 7599 list.get(i).beforeTextChanged(text, start, before, after); 7600 } 7601 } 7602 7603 // The spans that are inside or intersect the modified region no longer make sense 7604 removeIntersectingSpans(start, start + before, SpellCheckSpan.class); 7605 removeIntersectingSpans(start, start + before, SuggestionSpan.class); 7606 } 7607 7608 // Removes all spans that are inside or actually overlap the start..end range 7609 private <T> void removeIntersectingSpans(int start, int end, Class<T> type) { 7610 if (!(mText instanceof Editable)) return; 7611 Editable text = (Editable) mText; 7612 7613 T[] spans = text.getSpans(start, end, type); 7614 final int length = spans.length; 7615 for (int i = 0; i < length; i++) { 7616 final int s = text.getSpanStart(spans[i]); 7617 final int e = text.getSpanEnd(spans[i]); 7618 // Spans that are adjacent to the edited region will be handled in 7619 // updateSpellCheckSpans. Result depends on what will be added (space or text) 7620 if (e == start || s == end) break; 7621 text.removeSpan(spans[i]); 7622 } 7623 } 7624 7625 /** 7626 * Not private so it can be called from an inner class without going 7627 * through a thunk. 7628 */ 7629 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7630 if (mListeners != null) { 7631 final ArrayList<TextWatcher> list = mListeners; 7632 final int count = list.size(); 7633 for (int i = 0; i < count; i++) { 7634 list.get(i).onTextChanged(text, start, before, after); 7635 } 7636 } 7637 7638 updateSpellCheckSpans(start, start + after, false); 7639 7640 // Hide the controllers as soon as text is modified (typing, procedural...) 7641 // We do not hide the span controllers, since they can be added when a new text is 7642 // inserted into the text view (voice IME). 7643 hideCursorControllers(); 7644 } 7645 7646 /** 7647 * Not private so it can be called from an inner class without going 7648 * through a thunk. 7649 */ 7650 void sendAfterTextChanged(Editable text) { 7651 if (mListeners != null) { 7652 final ArrayList<TextWatcher> list = mListeners; 7653 final int count = list.size(); 7654 for (int i = 0; i < count; i++) { 7655 list.get(i).afterTextChanged(text); 7656 } 7657 } 7658 } 7659 7660 /** 7661 * Not private so it can be called from an inner class without going 7662 * through a thunk. 7663 */ 7664 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7665 final InputMethodState ims = mInputMethodState; 7666 if (ims == null || ims.mBatchEditNesting == 0) { 7667 updateAfterEdit(); 7668 } 7669 if (ims != null) { 7670 ims.mContentChanged = true; 7671 if (ims.mChangedStart < 0) { 7672 ims.mChangedStart = start; 7673 ims.mChangedEnd = start+before; 7674 } else { 7675 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7676 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7677 } 7678 ims.mChangedDelta += after-before; 7679 } 7680 7681 sendOnTextChanged(buffer, start, before, after); 7682 onTextChanged(buffer, start, before, after); 7683 } 7684 7685 /** 7686 * Not private so it can be called from an inner class without going 7687 * through a thunk. 7688 */ 7689 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7690 // XXX Make the start and end move together if this ends up 7691 // spending too much time invalidating. 7692 7693 boolean selChanged = false; 7694 int newSelStart=-1, newSelEnd=-1; 7695 7696 final InputMethodState ims = mInputMethodState; 7697 7698 if (what == Selection.SELECTION_END) { 7699 mHighlightPathBogus = true; 7700 selChanged = true; 7701 newSelEnd = newStart; 7702 7703 if (!isFocused()) { 7704 mSelectionMoved = true; 7705 } 7706 7707 if (oldStart >= 0 || newStart >= 0) { 7708 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7709 registerForPreDraw(); 7710 makeBlink(); 7711 } 7712 } 7713 7714 if (what == Selection.SELECTION_START) { 7715 mHighlightPathBogus = true; 7716 selChanged = true; 7717 newSelStart = newStart; 7718 7719 if (!isFocused()) { 7720 mSelectionMoved = true; 7721 } 7722 7723 if (oldStart >= 0 || newStart >= 0) { 7724 int end = Selection.getSelectionEnd(buf); 7725 invalidateCursor(end, oldStart, newStart); 7726 } 7727 } 7728 7729 if (selChanged) { 7730 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7731 if (newSelStart < 0) { 7732 newSelStart = Selection.getSelectionStart(buf); 7733 } 7734 if (newSelEnd < 0) { 7735 newSelEnd = Selection.getSelectionEnd(buf); 7736 } 7737 onSelectionChanged(newSelStart, newSelEnd); 7738 } 7739 } 7740 7741 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle) { 7742 if (ims == null || ims.mBatchEditNesting == 0) { 7743 invalidate(); 7744 mHighlightPathBogus = true; 7745 checkForResize(); 7746 } else { 7747 ims.mContentChanged = true; 7748 } 7749 } 7750 7751 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7752 mHighlightPathBogus = true; 7753 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7754 ims.mSelectionModeChanged = true; 7755 } 7756 7757 if (Selection.getSelectionStart(buf) >= 0) { 7758 if (ims == null || ims.mBatchEditNesting == 0) { 7759 invalidateCursor(); 7760 } else { 7761 ims.mCursorChanged = true; 7762 } 7763 } 7764 } 7765 7766 if (what instanceof ParcelableSpan) { 7767 // If this is a span that can be sent to a remote process, 7768 // the current extract editor would be interested in it. 7769 if (ims != null && ims.mExtracting != null) { 7770 if (ims.mBatchEditNesting != 0) { 7771 if (oldStart >= 0) { 7772 if (ims.mChangedStart > oldStart) { 7773 ims.mChangedStart = oldStart; 7774 } 7775 if (ims.mChangedStart > oldEnd) { 7776 ims.mChangedStart = oldEnd; 7777 } 7778 } 7779 if (newStart >= 0) { 7780 if (ims.mChangedStart > newStart) { 7781 ims.mChangedStart = newStart; 7782 } 7783 if (ims.mChangedStart > newEnd) { 7784 ims.mChangedStart = newEnd; 7785 } 7786 } 7787 } else { 7788 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7789 + oldStart + "-" + oldEnd + "," 7790 + newStart + "-" + newEnd + what); 7791 ims.mContentChanged = true; 7792 } 7793 } 7794 } 7795 7796 if (mSpellChecker != null && newStart < 0 && what instanceof SpellCheckSpan) { 7797 mSpellChecker.removeSpellCheckSpan((SpellCheckSpan) what); 7798 } 7799 } 7800 7801 /** 7802 * Create new SpellCheckSpans on the modified region. 7803 */ 7804 private void updateSpellCheckSpans(int start, int end, boolean createSpellChecker) { 7805 if (isTextEditable() && isSuggestionsEnabled() && !(this instanceof ExtractEditText)) { 7806 if (mSpellChecker == null && createSpellChecker) { 7807 mSpellChecker = new SpellChecker(this); 7808 } 7809 if (mSpellChecker != null) { 7810 mSpellChecker.spellCheck(start, end); 7811 } 7812 } 7813 } 7814 7815 /** 7816 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 7817 * pop-up should be displayed. 7818 */ 7819 private class EasyEditSpanController { 7820 7821 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 7822 7823 private EasyEditPopupWindow mPopupWindow; 7824 7825 private EasyEditSpan mEasyEditSpan; 7826 7827 private Runnable mHidePopup; 7828 7829 private void hide() { 7830 if (mPopupWindow != null) { 7831 mPopupWindow.hide(); 7832 TextView.this.removeCallbacks(mHidePopup); 7833 } 7834 removeSpans(mText); 7835 mEasyEditSpan = null; 7836 } 7837 7838 /** 7839 * Monitors the changes in the text. 7840 * 7841 * <p>{@link ChangeWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 7842 * as the notifications are not sent when a spannable (with spans) is inserted. 7843 */ 7844 public void onTextChange(CharSequence buffer) { 7845 adjustSpans(mText); 7846 7847 if (getWindowVisibility() != View.VISIBLE) { 7848 // The window is not visible yet, ignore the text change. 7849 return; 7850 } 7851 7852 if (mLayout == null) { 7853 // The view has not been layout yet, ignore the text change 7854 return; 7855 } 7856 7857 InputMethodManager imm = InputMethodManager.peekInstance(); 7858 if (!(TextView.this instanceof ExtractEditText) 7859 && imm != null && imm.isFullscreenMode()) { 7860 // The input is in extract mode. We do not have to handle the easy edit in the 7861 // original TextView, as the ExtractEditText will do 7862 return; 7863 } 7864 7865 // Remove the current easy edit span, as the text changed, and remove the pop-up 7866 // (if any) 7867 if (mEasyEditSpan != null) { 7868 if (mText instanceof Spannable) { 7869 ((Spannable) mText).removeSpan(mEasyEditSpan); 7870 } 7871 mEasyEditSpan = null; 7872 } 7873 if (mPopupWindow != null && mPopupWindow.isShowing()) { 7874 mPopupWindow.hide(); 7875 } 7876 7877 // Display the new easy edit span (if any). 7878 if (buffer instanceof Spanned) { 7879 mEasyEditSpan = getSpan((Spanned) buffer); 7880 if (mEasyEditSpan != null) { 7881 if (mPopupWindow == null) { 7882 mPopupWindow = new EasyEditPopupWindow(); 7883 mHidePopup = new Runnable() { 7884 @Override 7885 public void run() { 7886 hide(); 7887 } 7888 }; 7889 } 7890 mPopupWindow.show(mEasyEditSpan); 7891 TextView.this.removeCallbacks(mHidePopup); 7892 TextView.this.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 7893 } 7894 } 7895 } 7896 7897 /** 7898 * Adjusts the spans by removing all of them except the last one. 7899 */ 7900 private void adjustSpans(CharSequence buffer) { 7901 // This method enforces that only one easy edit span is attached to the text. 7902 // A better way to enforce this would be to listen for onSpanAdded, but this method 7903 // cannot be used in this scenario as no notification is triggered when a text with 7904 // spans is inserted into a text. 7905 if (buffer instanceof Spannable) { 7906 Spannable spannable = (Spannable) buffer; 7907 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7908 EasyEditSpan.class); 7909 for (int i = 0; i < spans.length - 1; i++) { 7910 spannable.removeSpan(spans[i]); 7911 } 7912 } 7913 } 7914 7915 /** 7916 * Removes all the {@link EasyEditSpan} currently attached. 7917 */ 7918 private void removeSpans(CharSequence buffer) { 7919 if (buffer instanceof Spannable) { 7920 Spannable spannable = (Spannable) buffer; 7921 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7922 EasyEditSpan.class); 7923 for (int i = 0; i < spans.length; i++) { 7924 spannable.removeSpan(spans[i]); 7925 } 7926 } 7927 } 7928 7929 private EasyEditSpan getSpan(Spanned spanned) { 7930 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 7931 EasyEditSpan.class); 7932 if (easyEditSpans.length == 0) { 7933 return null; 7934 } else { 7935 return easyEditSpans[0]; 7936 } 7937 } 7938 } 7939 7940 /** 7941 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 7942 * by {@link EasyEditSpanController}. 7943 */ 7944 private class EasyEditPopupWindow extends PinnedPopupWindow 7945 implements OnClickListener { 7946 private static final int POPUP_TEXT_LAYOUT = 7947 com.android.internal.R.layout.text_edit_action_popup_text; 7948 private TextView mDeleteTextView; 7949 private EasyEditSpan mEasyEditSpan; 7950 7951 @Override 7952 protected void createPopupWindow() { 7953 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 7954 com.android.internal.R.attr.textSelectHandleWindowStyle); 7955 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 7956 mPopupWindow.setClippingEnabled(true); 7957 } 7958 7959 @Override 7960 protected void initContentView() { 7961 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 7962 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 7963 mContentView = linearLayout; 7964 mContentView.setBackgroundResource( 7965 com.android.internal.R.drawable.text_edit_side_paste_window); 7966 7967 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 7968 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 7969 7970 LayoutParams wrapContent = new LayoutParams( 7971 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 7972 7973 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 7974 mDeleteTextView.setLayoutParams(wrapContent); 7975 mDeleteTextView.setText(com.android.internal.R.string.delete); 7976 mDeleteTextView.setOnClickListener(this); 7977 mContentView.addView(mDeleteTextView); 7978 } 7979 7980 public void show(EasyEditSpan easyEditSpan) { 7981 mEasyEditSpan = easyEditSpan; 7982 super.show(); 7983 } 7984 7985 @Override 7986 public void onClick(View view) { 7987 if (view == mDeleteTextView) { 7988 Editable editable = (Editable) mText; 7989 int start = editable.getSpanStart(mEasyEditSpan); 7990 int end = editable.getSpanEnd(mEasyEditSpan); 7991 if (start >= 0 && end >= 0) { 7992 deleteText_internal(start, end); 7993 } 7994 } 7995 } 7996 7997 @Override 7998 protected int getTextOffset() { 7999 // Place the pop-up at the end of the span 8000 Editable editable = (Editable) mText; 8001 return editable.getSpanEnd(mEasyEditSpan); 8002 } 8003 8004 @Override 8005 protected int getVerticalLocalPosition(int line) { 8006 return mLayout.getLineBottom(line); 8007 } 8008 8009 @Override 8010 protected int clipVertically(int positionY) { 8011 // As we display the pop-up below the span, no vertical clipping is required. 8012 return positionY; 8013 } 8014 } 8015 8016 private class ChangeWatcher implements TextWatcher, SpanWatcher { 8017 8018 private CharSequence mBeforeText; 8019 8020 private EasyEditSpanController mEasyEditSpanController; 8021 8022 private ChangeWatcher() { 8023 mEasyEditSpanController = new EasyEditSpanController(); 8024 } 8025 8026 public void beforeTextChanged(CharSequence buffer, int start, 8027 int before, int after) { 8028 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 8029 + " before=" + before + " after=" + after + ": " + buffer); 8030 8031 if (AccessibilityManager.getInstance(mContext).isEnabled() 8032 && !isPasswordInputType(mInputType) 8033 && !hasPasswordTransformationMethod()) { 8034 mBeforeText = buffer.toString(); 8035 } 8036 8037 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 8038 } 8039 8040 public void onTextChanged(CharSequence buffer, int start, 8041 int before, int after) { 8042 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 8043 + " before=" + before + " after=" + after + ": " + buffer); 8044 TextView.this.handleTextChanged(buffer, start, before, after); 8045 8046 mEasyEditSpanController.onTextChange(buffer); 8047 8048 if (AccessibilityManager.getInstance(mContext).isEnabled() && 8049 (isFocused() || isSelected() && isShown())) { 8050 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 8051 mBeforeText = null; 8052 } 8053 } 8054 8055 public void afterTextChanged(Editable buffer) { 8056 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 8057 TextView.this.sendAfterTextChanged(buffer); 8058 8059 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 8060 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 8061 } 8062 } 8063 8064 public void onSpanChanged(Spannable buf, 8065 Object what, int s, int e, int st, int en) { 8066 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 8067 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 8068 TextView.this.spanChange(buf, what, s, st, e, en); 8069 } 8070 8071 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 8072 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 8073 + " what=" + what + ": " + buf); 8074 TextView.this.spanChange(buf, what, -1, s, -1, e); 8075 } 8076 8077 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 8078 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 8079 + " what=" + what + ": " + buf); 8080 TextView.this.spanChange(buf, what, s, -1, e, -1); 8081 } 8082 8083 private void hideControllers() { 8084 mEasyEditSpanController.hide(); 8085 } 8086 } 8087 8088 /** 8089 * @hide 8090 */ 8091 @Override 8092 public void dispatchFinishTemporaryDetach() { 8093 mDispatchTemporaryDetach = true; 8094 super.dispatchFinishTemporaryDetach(); 8095 mDispatchTemporaryDetach = false; 8096 } 8097 8098 @Override 8099 public void onStartTemporaryDetach() { 8100 super.onStartTemporaryDetach(); 8101 // Only track when onStartTemporaryDetach() is called directly, 8102 // usually because this instance is an editable field in a list 8103 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 8104 8105 // Because of View recycling in ListView, there is no easy way to know when a TextView with 8106 // selection becomes visible again. Until a better solution is found, stop text selection 8107 // mode (if any) as soon as this TextView is recycled. 8108 hideControllers(); 8109 } 8110 8111 @Override 8112 public void onFinishTemporaryDetach() { 8113 super.onFinishTemporaryDetach(); 8114 // Only track when onStartTemporaryDetach() is called directly, 8115 // usually because this instance is an editable field in a list 8116 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 8117 } 8118 8119 @Override 8120 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 8121 if (mTemporaryDetach) { 8122 // If we are temporarily in the detach state, then do nothing. 8123 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8124 return; 8125 } 8126 8127 mShowCursor = SystemClock.uptimeMillis(); 8128 8129 ensureEndedBatchEdit(); 8130 8131 if (focused) { 8132 int selStart = getSelectionStart(); 8133 int selEnd = getSelectionEnd(); 8134 8135 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 8136 // mode for these, unless there was a specific selection already started. 8137 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 8138 selEnd == mText.length(); 8139 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 8140 8141 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 8142 // If a tap was used to give focus to that view, move cursor at tap position. 8143 // Has to be done before onTakeFocus, which can be overloaded. 8144 final int lastTapPosition = getLastTapPosition(); 8145 if (lastTapPosition >= 0) { 8146 Selection.setSelection((Spannable) mText, lastTapPosition); 8147 } 8148 8149 if (mMovement != null) { 8150 mMovement.onTakeFocus(this, (Spannable) mText, direction); 8151 } 8152 8153 // The DecorView does not have focus when the 'Done' ExtractEditText button is 8154 // pressed. Since it is the ViewAncestor's mView, it requests focus before 8155 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 8156 // This special case ensure that we keep current selection in that case. 8157 // It would be better to know why the DecorView does not have focus at that time. 8158 if (((this instanceof ExtractEditText) || mSelectionMoved) && 8159 selStart >= 0 && selEnd >= 0) { 8160 /* 8161 * Someone intentionally set the selection, so let them 8162 * do whatever it is that they wanted to do instead of 8163 * the default on-focus behavior. We reset the selection 8164 * here instead of just skipping the onTakeFocus() call 8165 * because some movement methods do something other than 8166 * just setting the selection in theirs and we still 8167 * need to go through that path. 8168 */ 8169 Selection.setSelection((Spannable) mText, selStart, selEnd); 8170 } 8171 8172 if (mSelectAllOnFocus) { 8173 selectAll(); 8174 } 8175 8176 mTouchFocusSelected = true; 8177 } 8178 8179 mFrozenWithFocus = false; 8180 mSelectionMoved = false; 8181 8182 if (mText instanceof Spannable) { 8183 Spannable sp = (Spannable) mText; 8184 MetaKeyKeyListener.resetMetaState(sp); 8185 } 8186 8187 makeBlink(); 8188 8189 if (mError != null) { 8190 showError(); 8191 } 8192 } else { 8193 if (mError != null) { 8194 hideError(); 8195 } 8196 // Don't leave us in the middle of a batch edit. 8197 onEndBatchEdit(); 8198 8199 if (this instanceof ExtractEditText) { 8200 // terminateTextSelectionMode removes selection, which we want to keep when 8201 // ExtractEditText goes out of focus. 8202 final int selStart = getSelectionStart(); 8203 final int selEnd = getSelectionEnd(); 8204 hideControllers(); 8205 Selection.setSelection((Spannable) mText, selStart, selEnd); 8206 } else { 8207 hideControllers(); 8208 downgradeEasyCorrectionSpans(); 8209 } 8210 8211 // No need to create the controller 8212 if (mSelectionModifierCursorController != null) { 8213 mSelectionModifierCursorController.resetTouchOffsets(); 8214 } 8215 } 8216 8217 startStopMarquee(focused); 8218 8219 if (mTransformation != null) { 8220 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 8221 } 8222 8223 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8224 } 8225 8226 private int getLastTapPosition() { 8227 // No need to create the controller at that point, no last tap position saved 8228 if (mSelectionModifierCursorController != null) { 8229 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 8230 if (lastTapPosition >= 0) { 8231 // Safety check, should not be possible. 8232 if (lastTapPosition > mText.length()) { 8233 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 8234 + mText.length() + ")"); 8235 lastTapPosition = mText.length(); 8236 } 8237 return lastTapPosition; 8238 } 8239 } 8240 8241 return -1; 8242 } 8243 8244 @Override 8245 public void onWindowFocusChanged(boolean hasWindowFocus) { 8246 super.onWindowFocusChanged(hasWindowFocus); 8247 8248 if (hasWindowFocus) { 8249 if (mBlink != null) { 8250 mBlink.uncancel(); 8251 makeBlink(); 8252 } 8253 } else { 8254 if (mBlink != null) { 8255 mBlink.cancel(); 8256 } 8257 // Don't leave us in the middle of a batch edit. 8258 onEndBatchEdit(); 8259 if (mInputContentType != null) { 8260 mInputContentType.enterDown = false; 8261 } 8262 8263 hideControllers(); 8264 if (mSuggestionsPopupWindow != null) { 8265 mSuggestionsPopupWindow.onParentLostFocus(); 8266 } 8267 } 8268 8269 startStopMarquee(hasWindowFocus); 8270 } 8271 8272 @Override 8273 protected void onVisibilityChanged(View changedView, int visibility) { 8274 super.onVisibilityChanged(changedView, visibility); 8275 if (visibility != VISIBLE) { 8276 hideControllers(); 8277 } 8278 } 8279 8280 /** 8281 * Use {@link BaseInputConnection#removeComposingSpans 8282 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 8283 * state from this text view. 8284 */ 8285 public void clearComposingText() { 8286 if (mText instanceof Spannable) { 8287 BaseInputConnection.removeComposingSpans((Spannable)mText); 8288 } 8289 } 8290 8291 @Override 8292 public void setSelected(boolean selected) { 8293 boolean wasSelected = isSelected(); 8294 8295 super.setSelected(selected); 8296 8297 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8298 if (selected) { 8299 startMarquee(); 8300 } else { 8301 stopMarquee(); 8302 } 8303 } 8304 } 8305 8306 @Override 8307 public boolean onTouchEvent(MotionEvent event) { 8308 final int action = event.getActionMasked(); 8309 8310 if (hasSelectionController()) { 8311 getSelectionController().onTouchEvent(event); 8312 } 8313 8314 if (action == MotionEvent.ACTION_DOWN) { 8315 mLastDownPositionX = event.getX(); 8316 mLastDownPositionY = event.getY(); 8317 8318 // Reset this state; it will be re-set if super.onTouchEvent 8319 // causes focus to move to the view. 8320 mTouchFocusSelected = false; 8321 mIgnoreActionUpEvent = false; 8322 } 8323 8324 final boolean superResult = super.onTouchEvent(event); 8325 8326 /* 8327 * Don't handle the release after a long press, because it will 8328 * move the selection away from whatever the menu action was 8329 * trying to affect. 8330 */ 8331 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 8332 mDiscardNextActionUp = false; 8333 return superResult; 8334 } 8335 8336 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 8337 !shouldIgnoreActionUpEvent() && isFocused(); 8338 8339 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 8340 && mText instanceof Spannable && mLayout != null) { 8341 boolean handled = false; 8342 8343 if (mMovement != null) { 8344 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 8345 } 8346 8347 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable) { 8348 // The LinkMovementMethod which should handle taps on links has not been installed 8349 // on non editable text that support text selection. 8350 // We reproduce its behavior here to open links for these. 8351 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 8352 getSelectionEnd(), ClickableSpan.class); 8353 8354 if (links.length != 0) { 8355 links[0].onClick(this); 8356 handled = true; 8357 } 8358 } 8359 8360 if (touchIsFinished && (isTextEditable() || mTextIsSelectable)) { 8361 // Show the IME, except when selecting in read-only text. 8362 final InputMethodManager imm = InputMethodManager.peekInstance(); 8363 viewClicked(imm); 8364 if (!mTextIsSelectable && mSoftInputShownOnFocus) { 8365 handled |= imm != null && imm.showSoftInput(this, 0); 8366 } 8367 8368 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 8369 hideControllers(); 8370 if (!selectAllGotFocus && mText.length() > 0) { 8371 if (mSpellChecker != null) { 8372 // When the cursor moves, the word that was typed may need spell check 8373 mSpellChecker.onSelectionChanged(); 8374 } 8375 if (!extractedTextModeWillBeStarted()) { 8376 if (isCursorInsideEasyCorrectionSpan()) { 8377 showSuggestions(); 8378 } else if (hasInsertionController()) { 8379 getInsertionController().show(); 8380 } 8381 } 8382 } 8383 8384 handled = true; 8385 } 8386 8387 if (handled) { 8388 return true; 8389 } 8390 } 8391 8392 return superResult; 8393 } 8394 8395 /** 8396 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 8397 */ 8398 private boolean isCursorInsideSuggestionSpan() { 8399 if (!(mText instanceof Spannable)) return false; 8400 8401 SuggestionSpan[] suggestionSpans = ((Spannable) mText).getSpans(getSelectionStart(), 8402 getSelectionEnd(), SuggestionSpan.class); 8403 return (suggestionSpans.length > 0); 8404 } 8405 8406 /** 8407 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 8408 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 8409 */ 8410 private boolean isCursorInsideEasyCorrectionSpan() { 8411 Spannable spannable = (Spannable) mText; 8412 SuggestionSpan[] suggestionSpans = spannable.getSpans(getSelectionStart(), 8413 getSelectionEnd(), SuggestionSpan.class); 8414 for (int i = 0; i < suggestionSpans.length; i++) { 8415 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 8416 return true; 8417 } 8418 } 8419 return false; 8420 } 8421 8422 /** 8423 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 8424 * span. 8425 */ 8426 private void downgradeEasyCorrectionSpans() { 8427 if (mText instanceof Spannable) { 8428 Spannable spannable = (Spannable) mText; 8429 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 8430 spannable.length(), SuggestionSpan.class); 8431 for (int i = 0; i < suggestionSpans.length; i++) { 8432 int flags = suggestionSpans[i].getFlags(); 8433 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 8434 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 8435 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 8436 suggestionSpans[i].setFlags(flags); 8437 } 8438 } 8439 } 8440 } 8441 8442 @Override 8443 public boolean onGenericMotionEvent(MotionEvent event) { 8444 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 8445 try { 8446 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 8447 return true; 8448 } 8449 } catch (AbstractMethodError ex) { 8450 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 8451 // Ignore its absence in case third party applications implemented the 8452 // interface directly. 8453 } 8454 } 8455 return super.onGenericMotionEvent(event); 8456 } 8457 8458 private void prepareCursorControllers() { 8459 boolean windowSupportsHandles = false; 8460 8461 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 8462 if (params instanceof WindowManager.LayoutParams) { 8463 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 8464 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 8465 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 8466 } 8467 8468 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 8469 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 8470 mLayout != null; 8471 8472 if (!mInsertionControllerEnabled) { 8473 hideInsertionPointCursorController(); 8474 if (mInsertionPointCursorController != null) { 8475 mInsertionPointCursorController.onDetached(); 8476 mInsertionPointCursorController = null; 8477 } 8478 } 8479 8480 if (!mSelectionControllerEnabled) { 8481 stopSelectionActionMode(); 8482 if (mSelectionModifierCursorController != null) { 8483 mSelectionModifierCursorController.onDetached(); 8484 mSelectionModifierCursorController = null; 8485 } 8486 } 8487 } 8488 8489 /** 8490 * @return True iff this TextView contains a text that can be edited, or if this is 8491 * a selectable TextView. 8492 */ 8493 private boolean isTextEditable() { 8494 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 8495 } 8496 8497 /** 8498 * Returns true, only while processing a touch gesture, if the initial 8499 * touch down event caused focus to move to the text view and as a result 8500 * its selection changed. Only valid while processing the touch gesture 8501 * of interest. 8502 */ 8503 public boolean didTouchFocusSelect() { 8504 return mTouchFocusSelected; 8505 } 8506 8507 @Override 8508 public void cancelLongPress() { 8509 super.cancelLongPress(); 8510 mIgnoreActionUpEvent = true; 8511 } 8512 8513 /** 8514 * This method is only valid during a touch event. 8515 * 8516 * @return true when the ACTION_UP event should be ignored, false otherwise. 8517 * 8518 * @hide 8519 */ 8520 public boolean shouldIgnoreActionUpEvent() { 8521 return mIgnoreActionUpEvent; 8522 } 8523 8524 @Override 8525 public boolean onTrackballEvent(MotionEvent event) { 8526 if (mMovement != null && mText instanceof Spannable && 8527 mLayout != null) { 8528 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 8529 return true; 8530 } 8531 } 8532 8533 return super.onTrackballEvent(event); 8534 } 8535 8536 public void setScroller(Scroller s) { 8537 mScroller = s; 8538 } 8539 8540 private static class Blink extends Handler implements Runnable { 8541 private final WeakReference<TextView> mView; 8542 private boolean mCancelled; 8543 8544 public Blink(TextView v) { 8545 mView = new WeakReference<TextView>(v); 8546 } 8547 8548 public void run() { 8549 if (mCancelled) { 8550 return; 8551 } 8552 8553 removeCallbacks(Blink.this); 8554 8555 TextView tv = mView.get(); 8556 8557 if (tv != null && tv.shouldBlink()) { 8558 if (tv.mLayout != null) { 8559 tv.invalidateCursorPath(); 8560 } 8561 8562 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 8563 } 8564 } 8565 8566 void cancel() { 8567 if (!mCancelled) { 8568 removeCallbacks(Blink.this); 8569 mCancelled = true; 8570 } 8571 } 8572 8573 void uncancel() { 8574 mCancelled = false; 8575 } 8576 } 8577 8578 /** 8579 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 8580 */ 8581 private boolean shouldBlink() { 8582 if (!isFocused()) return false; 8583 8584 final int start = getSelectionStart(); 8585 if (start < 0) return false; 8586 8587 final int end = getSelectionEnd(); 8588 if (end < 0) return false; 8589 8590 return start == end; 8591 } 8592 8593 private void makeBlink() { 8594 if (isCursorVisible()) { 8595 if (shouldBlink()) { 8596 mShowCursor = SystemClock.uptimeMillis(); 8597 if (mBlink == null) mBlink = new Blink(this); 8598 mBlink.removeCallbacks(mBlink); 8599 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 8600 } 8601 } else { 8602 if (mBlink != null) mBlink.removeCallbacks(mBlink); 8603 } 8604 } 8605 8606 @Override 8607 protected float getLeftFadingEdgeStrength() { 8608 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8609 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8610 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8611 if (mMarquee != null && !mMarquee.isStopped()) { 8612 final Marquee marquee = mMarquee; 8613 if (marquee.shouldDrawLeftFade()) { 8614 return marquee.mScroll / getHorizontalFadingEdgeLength(); 8615 } else { 8616 return 0.0f; 8617 } 8618 } else if (getLineCount() == 1) { 8619 final int layoutDirection = getResolvedLayoutDirection(); 8620 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8621 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8622 case Gravity.LEFT: 8623 return 0.0f; 8624 case Gravity.RIGHT: 8625 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8626 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8627 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8628 case Gravity.CENTER_HORIZONTAL: 8629 return 0.0f; 8630 } 8631 } 8632 } 8633 return super.getLeftFadingEdgeStrength(); 8634 } 8635 8636 @Override 8637 protected float getRightFadingEdgeStrength() { 8638 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8639 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8640 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8641 if (mMarquee != null && !mMarquee.isStopped()) { 8642 final Marquee marquee = mMarquee; 8643 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 8644 } else if (getLineCount() == 1) { 8645 final int layoutDirection = getResolvedLayoutDirection(); 8646 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8647 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8648 case Gravity.LEFT: 8649 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 8650 getCompoundPaddingRight(); 8651 final float lineWidth = mLayout.getLineWidth(0); 8652 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 8653 case Gravity.RIGHT: 8654 return 0.0f; 8655 case Gravity.CENTER_HORIZONTAL: 8656 case Gravity.FILL_HORIZONTAL: 8657 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 8658 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 8659 getHorizontalFadingEdgeLength(); 8660 } 8661 } 8662 } 8663 return super.getRightFadingEdgeStrength(); 8664 } 8665 8666 @Override 8667 protected int computeHorizontalScrollRange() { 8668 if (mLayout != null) { 8669 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 8670 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 8671 } 8672 8673 return super.computeHorizontalScrollRange(); 8674 } 8675 8676 @Override 8677 protected int computeVerticalScrollRange() { 8678 if (mLayout != null) 8679 return mLayout.getHeight(); 8680 8681 return super.computeVerticalScrollRange(); 8682 } 8683 8684 @Override 8685 protected int computeVerticalScrollExtent() { 8686 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8687 } 8688 8689 @Override 8690 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 8691 super.findViewsWithText(outViews, searched, flags); 8692 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 8693 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 8694 String searchedLowerCase = searched.toString().toLowerCase(); 8695 String textLowerCase = mText.toString().toLowerCase(); 8696 if (textLowerCase.contains(searchedLowerCase)) { 8697 outViews.add(this); 8698 } 8699 } 8700 } 8701 8702 public enum BufferType { 8703 NORMAL, SPANNABLE, EDITABLE, 8704 } 8705 8706 /** 8707 * Returns the TextView_textColor attribute from the 8708 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 8709 * from the TextView_textAppearance attribute, if TextView_textColor 8710 * was not set directly. 8711 */ 8712 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 8713 ColorStateList colors; 8714 colors = attrs.getColorStateList(com.android.internal.R.styleable. 8715 TextView_textColor); 8716 8717 if (colors == null) { 8718 int ap = attrs.getResourceId(com.android.internal.R.styleable. 8719 TextView_textAppearance, -1); 8720 if (ap != -1) { 8721 TypedArray appearance; 8722 appearance = context.obtainStyledAttributes(ap, 8723 com.android.internal.R.styleable.TextAppearance); 8724 colors = appearance.getColorStateList(com.android.internal.R.styleable. 8725 TextAppearance_textColor); 8726 appearance.recycle(); 8727 } 8728 } 8729 8730 return colors; 8731 } 8732 8733 /** 8734 * Returns the default color from the TextView_textColor attribute 8735 * from the AttributeSet, if set, or the default color from the 8736 * TextAppearance_textColor from the TextView_textAppearance attribute, 8737 * if TextView_textColor was not set directly. 8738 */ 8739 public static int getTextColor(Context context, 8740 TypedArray attrs, 8741 int def) { 8742 ColorStateList colors = getTextColors(context, attrs); 8743 8744 if (colors == null) { 8745 return def; 8746 } else { 8747 return colors.getDefaultColor(); 8748 } 8749 } 8750 8751 @Override 8752 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 8753 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 8754 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 8755 switch (keyCode) { 8756 case KeyEvent.KEYCODE_A: 8757 if (canSelectText()) { 8758 return onTextContextMenuItem(ID_SELECT_ALL); 8759 } 8760 break; 8761 case KeyEvent.KEYCODE_X: 8762 if (canCut()) { 8763 return onTextContextMenuItem(ID_CUT); 8764 } 8765 break; 8766 case KeyEvent.KEYCODE_C: 8767 if (canCopy()) { 8768 return onTextContextMenuItem(ID_COPY); 8769 } 8770 break; 8771 case KeyEvent.KEYCODE_V: 8772 if (canPaste()) { 8773 return onTextContextMenuItem(ID_PASTE); 8774 } 8775 break; 8776 } 8777 } 8778 return super.onKeyShortcut(keyCode, event); 8779 } 8780 8781 /** 8782 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8783 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8784 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 8785 */ 8786 private boolean canSelectText() { 8787 return hasSelectionController() && mText.length() != 0; 8788 } 8789 8790 /** 8791 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8792 * The text must be spannable and the movement method must allow for arbitary selection. 8793 * 8794 * See also {@link #canSelectText()}. 8795 */ 8796 private boolean textCanBeSelected() { 8797 // prepareCursorController() relies on this method. 8798 // If you change this condition, make sure prepareCursorController is called anywhere 8799 // the value of this condition might be changed. 8800 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8801 return isTextEditable() || (mTextIsSelectable && mText instanceof Spannable && isEnabled()); 8802 } 8803 8804 private boolean canCut() { 8805 if (hasPasswordTransformationMethod()) { 8806 return false; 8807 } 8808 8809 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 8810 return true; 8811 } 8812 8813 return false; 8814 } 8815 8816 private boolean canCopy() { 8817 if (hasPasswordTransformationMethod()) { 8818 return false; 8819 } 8820 8821 if (mText.length() > 0 && hasSelection()) { 8822 return true; 8823 } 8824 8825 return false; 8826 } 8827 8828 private boolean canPaste() { 8829 return (mText instanceof Editable && 8830 mInput != null && 8831 getSelectionStart() >= 0 && 8832 getSelectionEnd() >= 0 && 8833 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8834 hasPrimaryClip()); 8835 } 8836 8837 private static long packRangeInLong(int start, int end) { 8838 return (((long) start) << 32) | end; 8839 } 8840 8841 private static int extractRangeStartFromLong(long range) { 8842 return (int) (range >>> 32); 8843 } 8844 8845 private static int extractRangeEndFromLong(long range) { 8846 return (int) (range & 0x00000000FFFFFFFFL); 8847 } 8848 8849 private boolean selectAll() { 8850 final int length = mText.length(); 8851 Selection.setSelection((Spannable) mText, 0, length); 8852 return length > 0; 8853 } 8854 8855 /** 8856 * Adjusts selection to the word under last touch offset. 8857 * Return true if the operation was successfully performed. 8858 */ 8859 private boolean selectCurrentWord() { 8860 if (!canSelectText()) { 8861 return false; 8862 } 8863 8864 if (hasPasswordTransformationMethod()) { 8865 // Always select all on a password field. 8866 // Cut/copy menu entries are not available for passwords, but being able to select all 8867 // is however useful to delete or paste to replace the entire content. 8868 return selectAll(); 8869 } 8870 8871 int klass = mInputType & InputType.TYPE_MASK_CLASS; 8872 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 8873 8874 // Specific text field types: select the entire text for these 8875 if (klass == InputType.TYPE_CLASS_NUMBER || 8876 klass == InputType.TYPE_CLASS_PHONE || 8877 klass == InputType.TYPE_CLASS_DATETIME || 8878 variation == InputType.TYPE_TEXT_VARIATION_URI || 8879 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 8880 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 8881 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 8882 return selectAll(); 8883 } 8884 8885 long lastTouchOffsets = getLastTouchOffsets(); 8886 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 8887 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 8888 8889 // Safety check in case standard touch event handling has been bypassed 8890 if (minOffset < 0 || minOffset >= mText.length()) return false; 8891 if (maxOffset < 0 || maxOffset >= mText.length()) return false; 8892 8893 int selectionStart, selectionEnd; 8894 8895 // If a URLSpan (web address, email, phone...) is found at that position, select it. 8896 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 8897 if (urlSpans.length >= 1) { 8898 URLSpan urlSpan = urlSpans[0]; 8899 selectionStart = ((Spanned) mText).getSpanStart(urlSpan); 8900 selectionEnd = ((Spanned) mText).getSpanEnd(urlSpan); 8901 } else { 8902 final WordIterator wordIterator = getWordIterator(); 8903 wordIterator.setCharSequence(mText, minOffset, maxOffset); 8904 8905 selectionStart = wordIterator.getBeginning(minOffset); 8906 if (selectionStart == BreakIterator.DONE) return false; 8907 8908 selectionEnd = wordIterator.getEnd(maxOffset); 8909 if (selectionEnd == BreakIterator.DONE) return false; 8910 8911 if (selectionStart == selectionEnd) { 8912 // Possible when the word iterator does not properly handle the text's language 8913 long range = getCharRange(selectionStart); 8914 selectionStart = extractRangeStartFromLong(range); 8915 selectionEnd = extractRangeEndFromLong(range); 8916 } 8917 } 8918 8919 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8920 return selectionEnd > selectionStart; 8921 } 8922 8923 /** 8924 * This is a temporary method. Future versions may support multi-locale text. 8925 * 8926 * @return The locale that should be used for a word iterator and a spell checker 8927 * in this TextView, based on the current spell checker settings, 8928 * the current IME's locale, or the system default locale. 8929 * @hide 8930 */ 8931 public Locale getTextServicesLocale() { 8932 Locale locale = Locale.getDefault(); 8933 final TextServicesManager textServicesManager = (TextServicesManager) 8934 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 8935 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 8936 if (subtype != null) { 8937 locale = new Locale(subtype.getLocale()); 8938 } 8939 return locale; 8940 } 8941 8942 void onLocaleChanged() { 8943 // Will be re-created on demand in getWordIterator with the proper new locale 8944 mWordIterator = null; 8945 } 8946 8947 /** 8948 * @hide 8949 */ 8950 public WordIterator getWordIterator() { 8951 if (mWordIterator == null) { 8952 mWordIterator = new WordIterator(getTextServicesLocale()); 8953 } 8954 return mWordIterator; 8955 } 8956 8957 private long getCharRange(int offset) { 8958 final int textLength = mText.length(); 8959 if (offset + 1 < textLength) { 8960 final char currentChar = mText.charAt(offset); 8961 final char nextChar = mText.charAt(offset + 1); 8962 if (Character.isSurrogatePair(currentChar, nextChar)) { 8963 return packRangeInLong(offset, offset + 2); 8964 } 8965 } 8966 if (offset < textLength) { 8967 return packRangeInLong(offset, offset + 1); 8968 } 8969 if (offset - 2 >= 0) { 8970 final char previousChar = mText.charAt(offset - 1); 8971 final char previousPreviousChar = mText.charAt(offset - 2); 8972 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 8973 return packRangeInLong(offset - 2, offset); 8974 } 8975 } 8976 if (offset - 1 >= 0) { 8977 return packRangeInLong(offset - 1, offset); 8978 } 8979 return packRangeInLong(offset, offset); 8980 } 8981 8982 private long getLastTouchOffsets() { 8983 SelectionModifierCursorController selectionController = getSelectionController(); 8984 final int minOffset = selectionController.getMinTouchOffset(); 8985 final int maxOffset = selectionController.getMaxTouchOffset(); 8986 return packRangeInLong(minOffset, maxOffset); 8987 } 8988 8989 @Override 8990 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 8991 super.onPopulateAccessibilityEvent(event); 8992 8993 final boolean isPassword = hasPasswordTransformationMethod(); 8994 if (!isPassword) { 8995 CharSequence text = getTextForAccessibility(); 8996 if (!TextUtils.isEmpty(text)) { 8997 event.getText().add(text); 8998 } 8999 } 9000 } 9001 9002 @Override 9003 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 9004 super.onInitializeAccessibilityEvent(event); 9005 9006 final boolean isPassword = hasPasswordTransformationMethod(); 9007 event.setPassword(isPassword); 9008 9009 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 9010 event.setFromIndex(Selection.getSelectionStart(mText)); 9011 event.setToIndex(Selection.getSelectionEnd(mText)); 9012 event.setItemCount(mText.length()); 9013 } 9014 } 9015 9016 @Override 9017 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 9018 super.onInitializeAccessibilityNodeInfo(info); 9019 9020 final boolean isPassword = hasPasswordTransformationMethod(); 9021 if (!isPassword) { 9022 info.setText(getTextForAccessibility()); 9023 } 9024 info.setPassword(isPassword); 9025 } 9026 9027 @Override 9028 public void sendAccessibilityEvent(int eventType) { 9029 // Do not send scroll events since first they are not interesting for 9030 // accessibility and second such events a generated too frequently. 9031 // For details see the implementation of bringTextIntoView(). 9032 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 9033 return; 9034 } 9035 super.sendAccessibilityEvent(eventType); 9036 } 9037 9038 /** 9039 * Gets the text reported for accessibility purposes. It is the 9040 * text if not empty or the hint. 9041 * 9042 * @return The accessibility text. 9043 */ 9044 private CharSequence getTextForAccessibility() { 9045 CharSequence text = getText(); 9046 if (TextUtils.isEmpty(text)) { 9047 text = getHint(); 9048 } 9049 return text; 9050 } 9051 9052 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 9053 int fromIndex, int removedCount, int addedCount) { 9054 AccessibilityEvent event = 9055 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 9056 event.setFromIndex(fromIndex); 9057 event.setRemovedCount(removedCount); 9058 event.setAddedCount(addedCount); 9059 event.setBeforeText(beforeText); 9060 sendAccessibilityEventUnchecked(event); 9061 } 9062 9063 /** 9064 * Returns whether this text view is a current input method target. The 9065 * default implementation just checks with {@link InputMethodManager}. 9066 */ 9067 public boolean isInputMethodTarget() { 9068 InputMethodManager imm = InputMethodManager.peekInstance(); 9069 return imm != null && imm.isActive(this); 9070 } 9071 9072 // Selection context mode 9073 private static final int ID_SELECT_ALL = android.R.id.selectAll; 9074 private static final int ID_CUT = android.R.id.cut; 9075 private static final int ID_COPY = android.R.id.copy; 9076 private static final int ID_PASTE = android.R.id.paste; 9077 9078 /** 9079 * Called when a context menu option for the text view is selected. Currently 9080 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 9081 * {@link android.R.id#copy} or {@link android.R.id#paste}. 9082 * 9083 * @return true if the context menu item action was performed. 9084 */ 9085 public boolean onTextContextMenuItem(int id) { 9086 int min = 0; 9087 int max = mText.length(); 9088 9089 if (isFocused()) { 9090 final int selStart = getSelectionStart(); 9091 final int selEnd = getSelectionEnd(); 9092 9093 min = Math.max(0, Math.min(selStart, selEnd)); 9094 max = Math.max(0, Math.max(selStart, selEnd)); 9095 } 9096 9097 switch (id) { 9098 case ID_SELECT_ALL: 9099 // This does not enter text selection mode. Text is highlighted, so that it can be 9100 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 9101 selectAll(); 9102 return true; 9103 9104 case ID_PASTE: 9105 paste(min, max); 9106 return true; 9107 9108 case ID_CUT: 9109 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9110 deleteText_internal(min, max); 9111 stopSelectionActionMode(); 9112 return true; 9113 9114 case ID_COPY: 9115 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9116 stopSelectionActionMode(); 9117 return true; 9118 } 9119 return false; 9120 } 9121 9122 private CharSequence getTransformedText(int start, int end) { 9123 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 9124 } 9125 9126 /** 9127 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 9128 * by [min, max] when replacing this region by paste. 9129 * Note that if there were two spaces (or more) at that position before, they are kept. We just 9130 * make sure we do not add an extra one from the paste content. 9131 */ 9132 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 9133 if (paste.length() > 0) { 9134 if (min > 0) { 9135 final char charBefore = mTransformed.charAt(min - 1); 9136 final char charAfter = paste.charAt(0); 9137 9138 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9139 // Two spaces at beginning of paste: remove one 9140 final int originalLength = mText.length(); 9141 deleteText_internal(min - 1, min); 9142 // Due to filters, there is no guarantee that exactly one character was 9143 // removed: count instead. 9144 final int delta = mText.length() - originalLength; 9145 min += delta; 9146 max += delta; 9147 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9148 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9149 // No space at beginning of paste: add one 9150 final int originalLength = mText.length(); 9151 replaceText_internal(min, min, " "); 9152 // Taking possible filters into account as above. 9153 final int delta = mText.length() - originalLength; 9154 min += delta; 9155 max += delta; 9156 } 9157 } 9158 9159 if (max < mText.length()) { 9160 final char charBefore = paste.charAt(paste.length() - 1); 9161 final char charAfter = mTransformed.charAt(max); 9162 9163 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9164 // Two spaces at end of paste: remove one 9165 deleteText_internal(max, max + 1); 9166 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9167 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9168 // No space at end of paste: add one 9169 replaceText_internal(max, max, " "); 9170 } 9171 } 9172 } 9173 9174 return packRangeInLong(min, max); 9175 } 9176 9177 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 9178 TextView shadowView = (TextView) inflate(mContext, 9179 com.android.internal.R.layout.text_drag_thumbnail, null); 9180 9181 if (shadowView == null) { 9182 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 9183 } 9184 9185 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 9186 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 9187 } 9188 shadowView.setText(text); 9189 shadowView.setTextColor(getTextColors()); 9190 9191 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 9192 shadowView.setGravity(Gravity.CENTER); 9193 9194 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9195 ViewGroup.LayoutParams.WRAP_CONTENT)); 9196 9197 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 9198 shadowView.measure(size, size); 9199 9200 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 9201 shadowView.invalidate(); 9202 return new DragShadowBuilder(shadowView); 9203 } 9204 9205 private static class DragLocalState { 9206 public TextView sourceTextView; 9207 public int start, end; 9208 9209 public DragLocalState(TextView sourceTextView, int start, int end) { 9210 this.sourceTextView = sourceTextView; 9211 this.start = start; 9212 this.end = end; 9213 } 9214 } 9215 9216 @Override 9217 public boolean performLongClick() { 9218 boolean handled = false; 9219 boolean vibrate = true; 9220 9221 if (super.performLongClick()) { 9222 mDiscardNextActionUp = true; 9223 handled = true; 9224 } 9225 9226 // Long press in empty space moves cursor and shows the Paste affordance if available. 9227 if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 9228 mInsertionControllerEnabled) { 9229 final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY); 9230 stopSelectionActionMode(); 9231 Selection.setSelection((Spannable) mText, offset); 9232 getInsertionController().showWithActionPopup(); 9233 handled = true; 9234 vibrate = false; 9235 } 9236 9237 if (!handled && mSelectionActionMode != null) { 9238 if (touchPositionIsInSelection()) { 9239 // Start a drag 9240 final int start = getSelectionStart(); 9241 final int end = getSelectionEnd(); 9242 CharSequence selectedText = getTransformedText(start, end); 9243 ClipData data = ClipData.newPlainText(null, selectedText); 9244 DragLocalState localState = new DragLocalState(this, start, end); 9245 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 9246 stopSelectionActionMode(); 9247 } else { 9248 getSelectionController().hide(); 9249 selectCurrentWord(); 9250 getSelectionController().show(); 9251 } 9252 handled = true; 9253 } 9254 9255 // Start a new selection 9256 if (!handled) { 9257 vibrate = handled = startSelectionActionMode(); 9258 } 9259 9260 if (vibrate) { 9261 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 9262 } 9263 9264 if (handled) { 9265 mDiscardNextActionUp = true; 9266 } 9267 9268 return handled; 9269 } 9270 9271 private boolean touchPositionIsInSelection() { 9272 int selectionStart = getSelectionStart(); 9273 int selectionEnd = getSelectionEnd(); 9274 9275 if (selectionStart == selectionEnd) { 9276 return false; 9277 } 9278 9279 if (selectionStart > selectionEnd) { 9280 int tmp = selectionStart; 9281 selectionStart = selectionEnd; 9282 selectionEnd = tmp; 9283 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9284 } 9285 9286 SelectionModifierCursorController selectionController = getSelectionController(); 9287 int minOffset = selectionController.getMinTouchOffset(); 9288 int maxOffset = selectionController.getMaxTouchOffset(); 9289 9290 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 9291 } 9292 9293 private PositionListener getPositionListener() { 9294 if (mPositionListener == null) { 9295 mPositionListener = new PositionListener(); 9296 } 9297 return mPositionListener; 9298 } 9299 9300 private interface TextViewPositionListener { 9301 public void updatePosition(int parentPositionX, int parentPositionY, 9302 boolean parentPositionChanged, boolean parentScrolled); 9303 } 9304 9305 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 9306 // 3 handles 9307 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 9308 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 9309 private TextViewPositionListener[] mPositionListeners = 9310 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 9311 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 9312 private boolean mPositionHasChanged = true; 9313 // Absolute position of the TextView with respect to its parent window 9314 private int mPositionX, mPositionY; 9315 private int mNumberOfListeners; 9316 private boolean mScrollHasChanged; 9317 9318 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 9319 if (mNumberOfListeners == 0) { 9320 updatePosition(); 9321 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9322 vto.addOnPreDrawListener(this); 9323 } 9324 9325 int emptySlotIndex = -1; 9326 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9327 TextViewPositionListener listener = mPositionListeners[i]; 9328 if (listener == positionListener) { 9329 return; 9330 } else if (emptySlotIndex < 0 && listener == null) { 9331 emptySlotIndex = i; 9332 } 9333 } 9334 9335 mPositionListeners[emptySlotIndex] = positionListener; 9336 mCanMove[emptySlotIndex] = canMove; 9337 mNumberOfListeners++; 9338 } 9339 9340 public void removeSubscriber(TextViewPositionListener positionListener) { 9341 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9342 if (mPositionListeners[i] == positionListener) { 9343 mPositionListeners[i] = null; 9344 mNumberOfListeners--; 9345 break; 9346 } 9347 } 9348 9349 if (mNumberOfListeners == 0) { 9350 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9351 vto.removeOnPreDrawListener(this); 9352 } 9353 } 9354 9355 public int getPositionX() { 9356 return mPositionX; 9357 } 9358 9359 public int getPositionY() { 9360 return mPositionY; 9361 } 9362 9363 @Override 9364 public boolean onPreDraw() { 9365 updatePosition(); 9366 9367 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9368 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 9369 TextViewPositionListener positionListener = mPositionListeners[i]; 9370 if (positionListener != null) { 9371 positionListener.updatePosition(mPositionX, mPositionY, 9372 mPositionHasChanged, mScrollHasChanged); 9373 } 9374 } 9375 } 9376 9377 mScrollHasChanged = false; 9378 return true; 9379 } 9380 9381 private void updatePosition() { 9382 TextView.this.getLocationInWindow(mTempCoords); 9383 9384 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 9385 9386 mPositionX = mTempCoords[0]; 9387 mPositionY = mTempCoords[1]; 9388 } 9389 9390 public void onScrollChanged() { 9391 mScrollHasChanged = true; 9392 } 9393 } 9394 9395 private boolean isPositionVisible(int positionX, int positionY) { 9396 synchronized (sTmpPosition) { 9397 final float[] position = sTmpPosition; 9398 position[0] = positionX; 9399 position[1] = positionY; 9400 View view = this; 9401 9402 while (view != null) { 9403 if (view != this) { 9404 // Local scroll is already taken into account in positionX/Y 9405 position[0] -= view.getScrollX(); 9406 position[1] -= view.getScrollY(); 9407 } 9408 9409 if (position[0] < 0 || position[1] < 0 || 9410 position[0] > view.getWidth() || position[1] > view.getHeight()) { 9411 return false; 9412 } 9413 9414 if (!view.getMatrix().isIdentity()) { 9415 view.getMatrix().mapPoints(position); 9416 } 9417 9418 position[0] += view.getLeft(); 9419 position[1] += view.getTop(); 9420 9421 final ViewParent parent = view.getParent(); 9422 if (parent instanceof View) { 9423 view = (View) parent; 9424 } else { 9425 // We've reached the ViewRoot, stop iterating 9426 view = null; 9427 } 9428 } 9429 } 9430 9431 // We've been able to walk up the view hierarchy and the position was never clipped 9432 return true; 9433 } 9434 9435 private boolean isOffsetVisible(int offset) { 9436 final int line = mLayout.getLineForOffset(offset); 9437 final int lineBottom = mLayout.getLineBottom(line); 9438 final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset); 9439 return isPositionVisible(primaryHorizontal + viewportToContentHorizontalOffset(), 9440 lineBottom + viewportToContentVerticalOffset()); 9441 } 9442 9443 @Override 9444 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 9445 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 9446 if (mPositionListener != null) { 9447 mPositionListener.onScrollChanged(); 9448 } 9449 } 9450 9451 private abstract class PinnedPopupWindow implements TextViewPositionListener { 9452 protected PopupWindow mPopupWindow; 9453 protected ViewGroup mContentView; 9454 int mPositionX, mPositionY; 9455 9456 protected abstract void createPopupWindow(); 9457 protected abstract void initContentView(); 9458 protected abstract int getTextOffset(); 9459 protected abstract int getVerticalLocalPosition(int line); 9460 protected abstract int clipVertically(int positionY); 9461 9462 public PinnedPopupWindow() { 9463 createPopupWindow(); 9464 9465 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9466 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 9467 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 9468 9469 initContentView(); 9470 9471 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9472 ViewGroup.LayoutParams.WRAP_CONTENT); 9473 mContentView.setLayoutParams(wrapContent); 9474 9475 mPopupWindow.setContentView(mContentView); 9476 } 9477 9478 public void show() { 9479 TextView.this.getPositionListener().addSubscriber(this, false /* offset is fixed */); 9480 9481 computeLocalPosition(); 9482 9483 final PositionListener positionListener = TextView.this.getPositionListener(); 9484 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 9485 } 9486 9487 protected void measureContent() { 9488 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9489 mContentView.measure( 9490 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 9491 View.MeasureSpec.AT_MOST), 9492 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 9493 View.MeasureSpec.AT_MOST)); 9494 } 9495 9496 /* The popup window will be horizontally centered on the getTextOffset() and vertically 9497 * positioned according to viewportToContentHorizontalOffset. 9498 * 9499 * This method assumes that mContentView has properly been measured from its content. */ 9500 private void computeLocalPosition() { 9501 measureContent(); 9502 final int width = mContentView.getMeasuredWidth(); 9503 final int offset = getTextOffset(); 9504 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 9505 mPositionX += viewportToContentHorizontalOffset(); 9506 9507 final int line = mLayout.getLineForOffset(offset); 9508 mPositionY = getVerticalLocalPosition(line); 9509 mPositionY += viewportToContentVerticalOffset(); 9510 } 9511 9512 private void updatePosition(int parentPositionX, int parentPositionY) { 9513 int positionX = parentPositionX + mPositionX; 9514 int positionY = parentPositionY + mPositionY; 9515 9516 positionY = clipVertically(positionY); 9517 9518 // Horizontal clipping 9519 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9520 final int width = mContentView.getMeasuredWidth(); 9521 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 9522 positionX = Math.max(0, positionX); 9523 9524 if (isShowing()) { 9525 mPopupWindow.update(positionX, positionY, -1, -1); 9526 } else { 9527 mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 9528 positionX, positionY); 9529 } 9530 } 9531 9532 public void hide() { 9533 mPopupWindow.dismiss(); 9534 TextView.this.getPositionListener().removeSubscriber(this); 9535 } 9536 9537 @Override 9538 public void updatePosition(int parentPositionX, int parentPositionY, 9539 boolean parentPositionChanged, boolean parentScrolled) { 9540 // Either parentPositionChanged or parentScrolled is true, check if still visible 9541 if (isShowing() && isOffsetVisible(getTextOffset())) { 9542 if (parentScrolled) computeLocalPosition(); 9543 updatePosition(parentPositionX, parentPositionY); 9544 } else { 9545 hide(); 9546 } 9547 } 9548 9549 public boolean isShowing() { 9550 return mPopupWindow.isShowing(); 9551 } 9552 } 9553 9554 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 9555 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 9556 private static final int ADD_TO_DICTIONARY = -1; 9557 private static final int DELETE_TEXT = -2; 9558 private SuggestionInfo[] mSuggestionInfos; 9559 private int mNumberOfSuggestions; 9560 private boolean mCursorWasVisibleBeforeSuggestions; 9561 private boolean mIsShowingUp = false; 9562 private SuggestionAdapter mSuggestionsAdapter; 9563 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 9564 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 9565 9566 private class CustomPopupWindow extends PopupWindow { 9567 public CustomPopupWindow(Context context, int defStyle) { 9568 super(context, null, defStyle); 9569 } 9570 9571 @Override 9572 public void dismiss() { 9573 super.dismiss(); 9574 9575 TextView.this.getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 9576 9577 // Safe cast since show() checks that mText is an Editable 9578 ((Spannable) mText).removeSpan(mSuggestionRangeSpan); 9579 9580 setCursorVisible(mCursorWasVisibleBeforeSuggestions); 9581 if (hasInsertionController()) { 9582 getInsertionController().show(); 9583 } 9584 } 9585 } 9586 9587 public SuggestionsPopupWindow() { 9588 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9589 mSuggestionSpanComparator = new SuggestionSpanComparator(); 9590 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 9591 } 9592 9593 @Override 9594 protected void createPopupWindow() { 9595 mPopupWindow = new CustomPopupWindow(TextView.this.mContext, 9596 com.android.internal.R.attr.textSuggestionsWindowStyle); 9597 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9598 mPopupWindow.setFocusable(true); 9599 mPopupWindow.setClippingEnabled(false); 9600 } 9601 9602 @Override 9603 protected void initContentView() { 9604 ListView listView = new ListView(TextView.this.getContext()); 9605 mSuggestionsAdapter = new SuggestionAdapter(); 9606 listView.setAdapter(mSuggestionsAdapter); 9607 listView.setOnItemClickListener(this); 9608 mContentView = listView; 9609 9610 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 9611 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 9612 for (int i = 0; i < mSuggestionInfos.length; i++) { 9613 mSuggestionInfos[i] = new SuggestionInfo(); 9614 } 9615 } 9616 9617 public boolean isShowingUp() { 9618 return mIsShowingUp; 9619 } 9620 9621 public void onParentLostFocus() { 9622 mIsShowingUp = false; 9623 } 9624 9625 private class SuggestionInfo { 9626 int suggestionStart, suggestionEnd; // range of actual suggestion within text 9627 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 9628 int suggestionIndex; // the index of this suggestion inside suggestionSpan 9629 SpannableStringBuilder text = new SpannableStringBuilder(); 9630 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 9631 android.R.style.TextAppearance_SuggestionHighlight); 9632 } 9633 9634 private class SuggestionAdapter extends BaseAdapter { 9635 private LayoutInflater mInflater = (LayoutInflater) TextView.this.mContext. 9636 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9637 9638 @Override 9639 public int getCount() { 9640 return mNumberOfSuggestions; 9641 } 9642 9643 @Override 9644 public Object getItem(int position) { 9645 return mSuggestionInfos[position]; 9646 } 9647 9648 @Override 9649 public long getItemId(int position) { 9650 return position; 9651 } 9652 9653 @Override 9654 public View getView(int position, View convertView, ViewGroup parent) { 9655 TextView textView = (TextView) convertView; 9656 9657 if (textView == null) { 9658 textView = (TextView) mInflater.inflate(mTextEditSuggestionItemLayout, parent, 9659 false); 9660 } 9661 9662 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9663 textView.setText(suggestionInfo.text); 9664 9665 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9666 textView.setCompoundDrawablesWithIntrinsicBounds( 9667 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 9668 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9669 textView.setCompoundDrawablesWithIntrinsicBounds( 9670 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 9671 } else { 9672 textView.setCompoundDrawables(null, null, null, null); 9673 } 9674 9675 return textView; 9676 } 9677 } 9678 9679 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 9680 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 9681 final int flag1 = span1.getFlags(); 9682 final int flag2 = span2.getFlags(); 9683 if (flag1 != flag2) { 9684 // The order here should match what is used in updateDrawState 9685 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9686 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9687 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9688 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9689 if (easy1 && !misspelled1) return -1; 9690 if (easy2 && !misspelled2) return 1; 9691 if (misspelled1) return -1; 9692 if (misspelled2) return 1; 9693 } 9694 9695 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 9696 } 9697 } 9698 9699 /** 9700 * Returns the suggestion spans that cover the current cursor position. The suggestion 9701 * spans are sorted according to the length of text that they are attached to. 9702 */ 9703 private SuggestionSpan[] getSuggestionSpans() { 9704 int pos = TextView.this.getSelectionStart(); 9705 Spannable spannable = (Spannable) TextView.this.mText; 9706 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 9707 9708 mSpansLengths.clear(); 9709 for (SuggestionSpan suggestionSpan : suggestionSpans) { 9710 int start = spannable.getSpanStart(suggestionSpan); 9711 int end = spannable.getSpanEnd(suggestionSpan); 9712 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 9713 } 9714 9715 // The suggestions are sorted according to their types (easy correction first, then 9716 // misspelled) and to the length of the text that they cover (shorter first). 9717 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 9718 return suggestionSpans; 9719 } 9720 9721 @Override 9722 public void show() { 9723 if (!(mText instanceof Editable)) return; 9724 9725 updateSuggestions(); 9726 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9727 setCursorVisible(false); 9728 mIsShowingUp = true; 9729 super.show(); 9730 } 9731 9732 @Override 9733 protected void measureContent() { 9734 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9735 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 9736 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 9737 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 9738 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 9739 9740 int width = 0; 9741 View view = null; 9742 for (int i = 0; i < mNumberOfSuggestions; i++) { 9743 view = mSuggestionsAdapter.getView(i, view, mContentView); 9744 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 9745 view.measure(horizontalMeasure, verticalMeasure); 9746 width = Math.max(width, view.getMeasuredWidth()); 9747 } 9748 9749 // Enforce the width based on actual text widths 9750 mContentView.measure( 9751 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 9752 verticalMeasure); 9753 9754 Drawable popupBackground = mPopupWindow.getBackground(); 9755 if (popupBackground != null) { 9756 if (mTempRect == null) mTempRect = new Rect(); 9757 popupBackground.getPadding(mTempRect); 9758 width += mTempRect.left + mTempRect.right; 9759 } 9760 mPopupWindow.setWidth(width); 9761 } 9762 9763 @Override 9764 protected int getTextOffset() { 9765 return getSelectionStart(); 9766 } 9767 9768 @Override 9769 protected int getVerticalLocalPosition(int line) { 9770 return mLayout.getLineBottom(line); 9771 } 9772 9773 @Override 9774 protected int clipVertically(int positionY) { 9775 final int height = mContentView.getMeasuredHeight(); 9776 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9777 return Math.min(positionY, displayMetrics.heightPixels - height); 9778 } 9779 9780 @Override 9781 public void hide() { 9782 super.hide(); 9783 } 9784 9785 private void updateSuggestions() { 9786 Spannable spannable = (Spannable) TextView.this.mText; 9787 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 9788 9789 final int nbSpans = suggestionSpans.length; 9790 9791 mNumberOfSuggestions = 0; 9792 int spanUnionStart = mText.length(); 9793 int spanUnionEnd = 0; 9794 9795 SuggestionSpan misspelledSpan = null; 9796 int underlineColor = 0; 9797 9798 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 9799 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 9800 final int spanStart = spannable.getSpanStart(suggestionSpan); 9801 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 9802 spanUnionStart = Math.min(spanStart, spanUnionStart); 9803 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 9804 9805 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 9806 misspelledSpan = suggestionSpan; 9807 } 9808 9809 // The first span dictates the background color of the highlighted text 9810 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 9811 9812 String[] suggestions = suggestionSpan.getSuggestions(); 9813 int nbSuggestions = suggestions.length; 9814 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 9815 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9816 suggestionInfo.suggestionSpan = suggestionSpan; 9817 suggestionInfo.suggestionIndex = suggestionIndex; 9818 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9819 suggestions[suggestionIndex]); 9820 9821 mNumberOfSuggestions++; 9822 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 9823 // Also end outer for loop 9824 spanIndex = nbSpans; 9825 break; 9826 } 9827 } 9828 } 9829 9830 for (int i = 0; i < mNumberOfSuggestions; i++) { 9831 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 9832 } 9833 9834 // Add to dictionary item if there is a span with the misspelled flag 9835 if (misspelledSpan != null) { 9836 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 9837 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 9838 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 9839 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9840 suggestionInfo.suggestionSpan = misspelledSpan; 9841 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 9842 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9843 getContext().getString(com.android.internal.R.string.addToDictionary)); 9844 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9845 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9846 9847 mNumberOfSuggestions++; 9848 } 9849 } 9850 9851 // Delete item 9852 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9853 suggestionInfo.suggestionSpan = null; 9854 suggestionInfo.suggestionIndex = DELETE_TEXT; 9855 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9856 getContext().getString(com.android.internal.R.string.deleteText)); 9857 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9858 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9859 mNumberOfSuggestions++; 9860 9861 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 9862 if (underlineColor == 0) { 9863 // Fallback on the default highlight color when the first span does not provide one 9864 mSuggestionRangeSpan.setBackgroundColor(mHighlightColor); 9865 } else { 9866 final float BACKGROUND_TRANSPARENCY = 0.4f; 9867 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 9868 mSuggestionRangeSpan.setBackgroundColor( 9869 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 9870 } 9871 spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 9872 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9873 9874 mSuggestionsAdapter.notifyDataSetChanged(); 9875 } 9876 9877 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 9878 int unionEnd) { 9879 final Spannable text = (Spannable) mText; 9880 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 9881 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 9882 9883 // Adjust the start/end of the suggestion span 9884 suggestionInfo.suggestionStart = spanStart - unionStart; 9885 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 9886 + suggestionInfo.text.length(); 9887 9888 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 9889 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9890 9891 // Add the text before and after the span. 9892 suggestionInfo.text.insert(0, mText.toString().substring(unionStart, spanStart)); 9893 suggestionInfo.text.append(mText.toString().substring(spanEnd, unionEnd)); 9894 } 9895 9896 @Override 9897 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 9898 Editable editable = (Editable) mText; 9899 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9900 9901 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9902 final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); 9903 int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); 9904 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 9905 // Do not leave two adjacent spaces after deletion, or one at beginning of text 9906 if (spanUnionEnd < editable.length() && 9907 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 9908 (spanUnionStart == 0 || 9909 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 9910 spanUnionEnd = spanUnionEnd + 1; 9911 } 9912 deleteText_internal(spanUnionStart, spanUnionEnd); 9913 } 9914 hide(); 9915 return; 9916 } 9917 9918 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 9919 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 9920 if (spanStart < 0 || spanEnd <= spanStart) { 9921 // Span has been removed 9922 hide(); 9923 return; 9924 } 9925 final String originalText = mText.toString().substring(spanStart, spanEnd); 9926 9927 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9928 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 9929 intent.putExtra("word", originalText); 9930 intent.putExtra("locale", getTextServicesLocale().toString()); 9931 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 9932 getContext().startActivity(intent); 9933 // There is no way to know if the word was indeed added. Re-check. 9934 // TODO The ExtractEditText should remove the span in the original text instead 9935 editable.removeSpan(suggestionInfo.suggestionSpan); 9936 updateSpellCheckSpans(spanStart, spanEnd, false); 9937 } else { 9938 // SuggestionSpans are removed by replace: save them before 9939 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 9940 SuggestionSpan.class); 9941 final int length = suggestionSpans.length; 9942 int[] suggestionSpansStarts = new int[length]; 9943 int[] suggestionSpansEnds = new int[length]; 9944 int[] suggestionSpansFlags = new int[length]; 9945 for (int i = 0; i < length; i++) { 9946 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 9947 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 9948 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 9949 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 9950 9951 // Remove potential misspelled flags 9952 int suggestionSpanFlags = suggestionSpan.getFlags(); 9953 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 9954 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 9955 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 9956 suggestionSpan.setFlags(suggestionSpanFlags); 9957 } 9958 } 9959 9960 final int suggestionStart = suggestionInfo.suggestionStart; 9961 final int suggestionEnd = suggestionInfo.suggestionEnd; 9962 final String suggestion = suggestionInfo.text.subSequence( 9963 suggestionStart, suggestionEnd).toString(); 9964 replaceText_internal(spanStart, spanEnd, suggestion); 9965 9966 // Notify source IME of the suggestion pick. Do this before swaping texts. 9967 if (!TextUtils.isEmpty( 9968 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 9969 InputMethodManager imm = InputMethodManager.peekInstance(); 9970 if (imm != null) { 9971 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 9972 suggestionInfo.suggestionIndex); 9973 } 9974 } 9975 9976 // Swap text content between actual text and Suggestion span 9977 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 9978 suggestions[suggestionInfo.suggestionIndex] = originalText; 9979 9980 // Restore previous SuggestionSpans 9981 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 9982 for (int i = 0; i < length; i++) { 9983 // Only spans that include the modified region make sense after replacement 9984 // Spans partially included in the replaced region are removed, there is no 9985 // way to assign them a valid range after replacement 9986 if (suggestionSpansStarts[i] <= spanStart && 9987 suggestionSpansEnds[i] >= spanEnd) { 9988 setSpan_internal(suggestionSpans[i], suggestionSpansStarts[i], 9989 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 9990 } 9991 } 9992 9993 // Move cursor at the end of the replaced word 9994 final int newCursorPosition = spanEnd + lengthDifference; 9995 setCursorPosition_internal(newCursorPosition, newCursorPosition); 9996 } 9997 9998 hide(); 9999 } 10000 } 10001 10002 /** 10003 * Removes the suggestion spans. 10004 */ 10005 CharSequence removeSuggestionSpans(CharSequence text) { 10006 if (text instanceof Spanned) { 10007 Spannable spannable; 10008 if (text instanceof Spannable) { 10009 spannable = (Spannable) text; 10010 } else { 10011 spannable = new SpannableString(text); 10012 text = spannable; 10013 } 10014 10015 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 10016 for (int i = 0; i < spans.length; i++) { 10017 spannable.removeSpan(spans[i]); 10018 } 10019 } 10020 return text; 10021 } 10022 10023 void showSuggestions() { 10024 if (mSuggestionsPopupWindow == null) { 10025 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 10026 } 10027 hideControllers(); 10028 mSuggestionsPopupWindow.show(); 10029 } 10030 10031 boolean areSuggestionsShown() { 10032 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 10033 } 10034 10035 /** 10036 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 10037 * by the IME or by the spell checker as the user types. This is done by adding 10038 * {@link SuggestionSpan}s to the text. 10039 * 10040 * When suggestions are enabled (default), this list of suggestions will be displayed when the 10041 * user asks for them on these parts of the text. This value depends on the inputType of this 10042 * TextView. 10043 * 10044 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 10045 * 10046 * In addition, the type variation must be one of 10047 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 10048 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 10049 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 10050 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 10051 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 10052 * 10053 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 10054 * 10055 * @return true if the suggestions popup window is enabled, based on the inputType. 10056 */ 10057 public boolean isSuggestionsEnabled() { 10058 if ((mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false; 10059 if ((mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 10060 10061 final int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 10062 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 10063 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 10064 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 10065 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 10066 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 10067 } 10068 10069 /** 10070 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 10071 * selection is initiated in this View. 10072 * 10073 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 10074 * Paste actions, depending on what this View supports. 10075 * 10076 * A custom implementation can add new entries in the default menu in its 10077 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 10078 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 10079 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 10080 * or {@link android.R.id#paste} ids as parameters. 10081 * 10082 * Returning false from 10083 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 10084 * the action mode from being started. 10085 * 10086 * Action click events should be handled by the custom implementation of 10087 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 10088 * 10089 * Note that text selection mode is not started when a TextView receives focus and the 10090 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 10091 * that case, to allow for quick replacement. 10092 */ 10093 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 10094 mCustomSelectionActionModeCallback = actionModeCallback; 10095 } 10096 10097 /** 10098 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 10099 * 10100 * @return The current custom selection callback. 10101 */ 10102 public ActionMode.Callback getCustomSelectionActionModeCallback() { 10103 return mCustomSelectionActionModeCallback; 10104 } 10105 10106 /** 10107 * 10108 * @return true if the selection mode was actually started. 10109 */ 10110 private boolean startSelectionActionMode() { 10111 if (mSelectionActionMode != null) { 10112 // Selection action mode is already started 10113 return false; 10114 } 10115 10116 if (!canSelectText() || !requestFocus()) { 10117 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 10118 return false; 10119 } 10120 10121 if (!hasSelection()) { 10122 // There may already be a selection on device rotation 10123 if (!selectCurrentWord()) { 10124 // No word found under cursor or text selection not permitted. 10125 return false; 10126 } 10127 } 10128 10129 boolean willExtract = extractedTextModeWillBeStarted(); 10130 10131 // Do not start the action mode when extracted text will show up full screen, thus 10132 // immediately hiding the newly created action bar, which would be visually distracting. 10133 if (!willExtract) { 10134 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 10135 mSelectionActionMode = startActionMode(actionModeCallback); 10136 } 10137 10138 final boolean selectionStarted = mSelectionActionMode != null || willExtract; 10139 if (selectionStarted && !mTextIsSelectable && mSoftInputShownOnFocus) { 10140 // Show the IME to be able to replace text, except when selecting non editable text. 10141 final InputMethodManager imm = InputMethodManager.peekInstance(); 10142 if (imm != null) { 10143 imm.showSoftInput(this, 0, null); 10144 } 10145 } 10146 10147 return selectionStarted; 10148 } 10149 10150 private boolean extractedTextModeWillBeStarted() { 10151 if (!(this instanceof ExtractEditText)) { 10152 final InputMethodManager imm = InputMethodManager.peekInstance(); 10153 return imm != null && imm.isFullscreenMode(); 10154 } 10155 return false; 10156 } 10157 10158 private void stopSelectionActionMode() { 10159 if (mSelectionActionMode != null) { 10160 // This will hide the mSelectionModifierCursorController 10161 mSelectionActionMode.finish(); 10162 } 10163 } 10164 10165 /** 10166 * Paste clipboard content between min and max positions. 10167 */ 10168 private void paste(int min, int max) { 10169 ClipboardManager clipboard = 10170 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 10171 ClipData clip = clipboard.getPrimaryClip(); 10172 if (clip != null) { 10173 boolean didFirst = false; 10174 for (int i=0; i<clip.getItemCount(); i++) { 10175 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 10176 if (paste != null) { 10177 if (!didFirst) { 10178 long minMax = prepareSpacesAroundPaste(min, max, paste); 10179 min = extractRangeStartFromLong(minMax); 10180 max = extractRangeEndFromLong(minMax); 10181 Selection.setSelection((Spannable) mText, max); 10182 ((Editable) mText).replace(min, max, paste); 10183 didFirst = true; 10184 } else { 10185 ((Editable) mText).insert(getSelectionEnd(), "\n"); 10186 ((Editable) mText).insert(getSelectionEnd(), paste); 10187 } 10188 } 10189 } 10190 stopSelectionActionMode(); 10191 sLastCutOrCopyTime = 0; 10192 } 10193 } 10194 10195 private void setPrimaryClip(ClipData clip) { 10196 ClipboardManager clipboard = (ClipboardManager) getContext(). 10197 getSystemService(Context.CLIPBOARD_SERVICE); 10198 clipboard.setPrimaryClip(clip); 10199 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 10200 } 10201 10202 /** 10203 * An ActionMode Callback class that is used to provide actions while in text selection mode. 10204 * 10205 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 10206 * on which of these this TextView supports. 10207 */ 10208 private class SelectionActionModeCallback implements ActionMode.Callback { 10209 10210 @Override 10211 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 10212 TypedArray styledAttributes = mContext.obtainStyledAttributes( 10213 com.android.internal.R.styleable.SelectionModeDrawables); 10214 10215 boolean allowText = getContext().getResources().getBoolean( 10216 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 10217 10218 mode.setTitle(allowText ? 10219 mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null); 10220 mode.setSubtitle(null); 10221 10222 int selectAllIconId = 0; // No icon by default 10223 if (!allowText) { 10224 // Provide an icon, text will not be displayed on smaller screens. 10225 selectAllIconId = styledAttributes.getResourceId( 10226 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 10227 } 10228 10229 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 10230 setIcon(selectAllIconId). 10231 setAlphabeticShortcut('a'). 10232 setShowAsAction( 10233 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10234 10235 if (canCut()) { 10236 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 10237 setIcon(styledAttributes.getResourceId( 10238 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 10239 setAlphabeticShortcut('x'). 10240 setShowAsAction( 10241 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10242 } 10243 10244 if (canCopy()) { 10245 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 10246 setIcon(styledAttributes.getResourceId( 10247 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 10248 setAlphabeticShortcut('c'). 10249 setShowAsAction( 10250 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10251 } 10252 10253 if (canPaste()) { 10254 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 10255 setIcon(styledAttributes.getResourceId( 10256 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 10257 setAlphabeticShortcut('v'). 10258 setShowAsAction( 10259 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10260 } 10261 10262 styledAttributes.recycle(); 10263 10264 if (mCustomSelectionActionModeCallback != null) { 10265 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 10266 // The custom mode can choose to cancel the action mode 10267 return false; 10268 } 10269 } 10270 10271 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 10272 getSelectionController().show(); 10273 return true; 10274 } else { 10275 return false; 10276 } 10277 } 10278 10279 @Override 10280 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 10281 if (mCustomSelectionActionModeCallback != null) { 10282 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 10283 } 10284 return true; 10285 } 10286 10287 @Override 10288 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 10289 if (mCustomSelectionActionModeCallback != null && 10290 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 10291 return true; 10292 } 10293 return onTextContextMenuItem(item.getItemId()); 10294 } 10295 10296 @Override 10297 public void onDestroyActionMode(ActionMode mode) { 10298 if (mCustomSelectionActionModeCallback != null) { 10299 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 10300 } 10301 Selection.setSelection((Spannable) mText, getSelectionEnd()); 10302 10303 if (mSelectionModifierCursorController != null) { 10304 mSelectionModifierCursorController.hide(); 10305 } 10306 10307 mSelectionActionMode = null; 10308 } 10309 } 10310 10311 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 10312 private static final int POPUP_TEXT_LAYOUT = 10313 com.android.internal.R.layout.text_edit_action_popup_text; 10314 private TextView mPasteTextView; 10315 private TextView mReplaceTextView; 10316 10317 @Override 10318 protected void createPopupWindow() { 10319 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 10320 com.android.internal.R.attr.textSelectHandleWindowStyle); 10321 mPopupWindow.setClippingEnabled(true); 10322 } 10323 10324 @Override 10325 protected void initContentView() { 10326 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 10327 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 10328 mContentView = linearLayout; 10329 mContentView.setBackgroundResource( 10330 com.android.internal.R.drawable.text_edit_paste_window); 10331 10332 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 10333 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 10334 10335 LayoutParams wrapContent = new LayoutParams( 10336 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 10337 10338 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10339 mPasteTextView.setLayoutParams(wrapContent); 10340 mContentView.addView(mPasteTextView); 10341 mPasteTextView.setText(com.android.internal.R.string.paste); 10342 mPasteTextView.setOnClickListener(this); 10343 10344 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10345 mReplaceTextView.setLayoutParams(wrapContent); 10346 mContentView.addView(mReplaceTextView); 10347 mReplaceTextView.setText(com.android.internal.R.string.replace); 10348 mReplaceTextView.setOnClickListener(this); 10349 } 10350 10351 @Override 10352 public void show() { 10353 boolean canPaste = canPaste(); 10354 boolean canSuggest = isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 10355 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 10356 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 10357 10358 if (!canPaste && !canSuggest) return; 10359 10360 super.show(); 10361 } 10362 10363 @Override 10364 public void onClick(View view) { 10365 if (view == mPasteTextView && canPaste()) { 10366 onTextContextMenuItem(ID_PASTE); 10367 hide(); 10368 } else if (view == mReplaceTextView) { 10369 final int middle = (getSelectionStart() + getSelectionEnd()) / 2; 10370 stopSelectionActionMode(); 10371 Selection.setSelection((Spannable) mText, middle); 10372 showSuggestions(); 10373 } 10374 } 10375 10376 @Override 10377 protected int getTextOffset() { 10378 return (getSelectionStart() + getSelectionEnd()) / 2; 10379 } 10380 10381 @Override 10382 protected int getVerticalLocalPosition(int line) { 10383 return mLayout.getLineTop(line) - mContentView.getMeasuredHeight(); 10384 } 10385 10386 @Override 10387 protected int clipVertically(int positionY) { 10388 if (positionY < 0) { 10389 final int offset = getTextOffset(); 10390 final int line = mLayout.getLineForOffset(offset); 10391 positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line); 10392 positionY += mContentView.getMeasuredHeight(); 10393 10394 // Assumes insertion and selection handles share the same height 10395 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 10396 positionY += handle.getIntrinsicHeight(); 10397 } 10398 10399 return positionY; 10400 } 10401 } 10402 10403 private abstract class HandleView extends View implements TextViewPositionListener { 10404 protected Drawable mDrawable; 10405 protected Drawable mDrawableLtr; 10406 protected Drawable mDrawableRtl; 10407 private final PopupWindow mContainer; 10408 // Position with respect to the parent TextView 10409 private int mPositionX, mPositionY; 10410 private boolean mIsDragging; 10411 // Offset from touch position to mPosition 10412 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 10413 protected int mHotspotX; 10414 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 10415 private float mTouchOffsetY; 10416 // Where the touch position should be on the handle to ensure a maximum cursor visibility 10417 private float mIdealVerticalOffset; 10418 // Parent's (TextView) previous position in window 10419 private int mLastParentX, mLastParentY; 10420 // Transient action popup window for Paste and Replace actions 10421 protected ActionPopupWindow mActionPopupWindow; 10422 // Previous text character offset 10423 private int mPreviousOffset = -1; 10424 // Previous text character offset 10425 private boolean mPositionHasChanged = true; 10426 // Used to delay the appearance of the action popup window 10427 private Runnable mActionPopupShower; 10428 10429 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 10430 super(TextView.this.mContext); 10431 mContainer = new PopupWindow(TextView.this.mContext, null, 10432 com.android.internal.R.attr.textSelectHandleWindowStyle); 10433 mContainer.setSplitTouchEnabled(true); 10434 mContainer.setClippingEnabled(false); 10435 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 10436 mContainer.setContentView(this); 10437 10438 mDrawableLtr = drawableLtr; 10439 mDrawableRtl = drawableRtl; 10440 10441 updateDrawable(); 10442 10443 final int handleHeight = mDrawable.getIntrinsicHeight(); 10444 mTouchOffsetY = -0.3f * handleHeight; 10445 mIdealVerticalOffset = 0.7f * handleHeight; 10446 } 10447 10448 protected void updateDrawable() { 10449 final int offset = getCurrentCursorOffset(); 10450 final boolean isRtlCharAtOffset = mLayout.isRtlCharAt(offset); 10451 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 10452 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 10453 } 10454 10455 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 10456 10457 // Touch-up filter: number of previous positions remembered 10458 private static final int HISTORY_SIZE = 5; 10459 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 10460 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 10461 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 10462 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 10463 private int mPreviousOffsetIndex = 0; 10464 private int mNumberPreviousOffsets = 0; 10465 10466 private void startTouchUpFilter(int offset) { 10467 mNumberPreviousOffsets = 0; 10468 addPositionToTouchUpFilter(offset); 10469 } 10470 10471 private void addPositionToTouchUpFilter(int offset) { 10472 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 10473 mPreviousOffsets[mPreviousOffsetIndex] = offset; 10474 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 10475 mNumberPreviousOffsets++; 10476 } 10477 10478 private void filterOnTouchUp() { 10479 final long now = SystemClock.uptimeMillis(); 10480 int i = 0; 10481 int index = mPreviousOffsetIndex; 10482 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 10483 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 10484 i++; 10485 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 10486 } 10487 10488 if (i > 0 && i < iMax && 10489 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 10490 positionAtCursorOffset(mPreviousOffsets[index], false); 10491 } 10492 } 10493 10494 public boolean offsetHasBeenChanged() { 10495 return mNumberPreviousOffsets > 1; 10496 } 10497 10498 @Override 10499 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 10500 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 10501 } 10502 10503 public void show() { 10504 if (isShowing()) return; 10505 10506 getPositionListener().addSubscriber(this, true /* local position may change */); 10507 10508 // Make sure the offset is always considered new, even when focusing at same position 10509 mPreviousOffset = -1; 10510 positionAtCursorOffset(getCurrentCursorOffset(), false); 10511 10512 hideActionPopupWindow(); 10513 } 10514 10515 protected void dismiss() { 10516 mIsDragging = false; 10517 mContainer.dismiss(); 10518 onDetached(); 10519 } 10520 10521 public void hide() { 10522 dismiss(); 10523 10524 TextView.this.getPositionListener().removeSubscriber(this); 10525 } 10526 10527 void showActionPopupWindow(int delay) { 10528 if (mActionPopupWindow == null) { 10529 mActionPopupWindow = new ActionPopupWindow(); 10530 } 10531 if (mActionPopupShower == null) { 10532 mActionPopupShower = new Runnable() { 10533 public void run() { 10534 mActionPopupWindow.show(); 10535 } 10536 }; 10537 } else { 10538 TextView.this.removeCallbacks(mActionPopupShower); 10539 } 10540 TextView.this.postDelayed(mActionPopupShower, delay); 10541 } 10542 10543 protected void hideActionPopupWindow() { 10544 if (mActionPopupShower != null) { 10545 TextView.this.removeCallbacks(mActionPopupShower); 10546 } 10547 if (mActionPopupWindow != null) { 10548 mActionPopupWindow.hide(); 10549 } 10550 } 10551 10552 public boolean isShowing() { 10553 return mContainer.isShowing(); 10554 } 10555 10556 private boolean isVisible() { 10557 // Always show a dragging handle. 10558 if (mIsDragging) { 10559 return true; 10560 } 10561 10562 if (isInBatchEditMode()) { 10563 return false; 10564 } 10565 10566 return TextView.this.isPositionVisible(mPositionX + mHotspotX, mPositionY); 10567 } 10568 10569 public abstract int getCurrentCursorOffset(); 10570 10571 protected abstract void updateSelection(int offset); 10572 10573 public abstract void updatePosition(float x, float y); 10574 10575 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 10576 // A HandleView relies on the layout, which may be nulled by external methods 10577 if (mLayout == null) { 10578 // Will update controllers' state, hiding them and stopping selection mode if needed 10579 prepareCursorControllers(); 10580 return; 10581 } 10582 10583 if (offset != mPreviousOffset || parentScrolled) { 10584 updateSelection(offset); 10585 addPositionToTouchUpFilter(offset); 10586 final int line = mLayout.getLineForOffset(offset); 10587 10588 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 10589 mPositionY = mLayout.getLineBottom(line); 10590 10591 // Take TextView's padding and scroll into account. 10592 mPositionX += viewportToContentHorizontalOffset(); 10593 mPositionY += viewportToContentVerticalOffset(); 10594 10595 mPreviousOffset = offset; 10596 mPositionHasChanged = true; 10597 } 10598 } 10599 10600 public void updatePosition(int parentPositionX, int parentPositionY, 10601 boolean parentPositionChanged, boolean parentScrolled) { 10602 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 10603 if (parentPositionChanged || mPositionHasChanged) { 10604 if (mIsDragging) { 10605 // Update touchToWindow offset in case of parent scrolling while dragging 10606 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 10607 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 10608 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 10609 mLastParentX = parentPositionX; 10610 mLastParentY = parentPositionY; 10611 } 10612 10613 onHandleMoved(); 10614 } 10615 10616 if (isVisible()) { 10617 final int positionX = parentPositionX + mPositionX; 10618 final int positionY = parentPositionY + mPositionY; 10619 if (isShowing()) { 10620 mContainer.update(positionX, positionY, -1, -1); 10621 } else { 10622 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 10623 positionX, positionY); 10624 } 10625 } else { 10626 if (isShowing()) { 10627 dismiss(); 10628 } 10629 } 10630 10631 mPositionHasChanged = false; 10632 } 10633 } 10634 10635 @Override 10636 protected void onDraw(Canvas c) { 10637 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 10638 mDrawable.draw(c); 10639 } 10640 10641 @Override 10642 public boolean onTouchEvent(MotionEvent ev) { 10643 switch (ev.getActionMasked()) { 10644 case MotionEvent.ACTION_DOWN: { 10645 startTouchUpFilter(getCurrentCursorOffset()); 10646 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 10647 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 10648 10649 final PositionListener positionListener = getPositionListener(); 10650 mLastParentX = positionListener.getPositionX(); 10651 mLastParentY = positionListener.getPositionY(); 10652 mIsDragging = true; 10653 break; 10654 } 10655 10656 case MotionEvent.ACTION_MOVE: { 10657 final float rawX = ev.getRawX(); 10658 final float rawY = ev.getRawY(); 10659 10660 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 10661 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 10662 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 10663 float newVerticalOffset; 10664 if (previousVerticalOffset < mIdealVerticalOffset) { 10665 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 10666 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 10667 } else { 10668 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 10669 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 10670 } 10671 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 10672 10673 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 10674 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 10675 10676 updatePosition(newPosX, newPosY); 10677 break; 10678 } 10679 10680 case MotionEvent.ACTION_UP: 10681 filterOnTouchUp(); 10682 mIsDragging = false; 10683 break; 10684 10685 case MotionEvent.ACTION_CANCEL: 10686 mIsDragging = false; 10687 break; 10688 } 10689 return true; 10690 } 10691 10692 public boolean isDragging() { 10693 return mIsDragging; 10694 } 10695 10696 void onHandleMoved() { 10697 hideActionPopupWindow(); 10698 } 10699 10700 public void onDetached() { 10701 hideActionPopupWindow(); 10702 } 10703 } 10704 10705 private class InsertionHandleView extends HandleView { 10706 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 10707 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 10708 10709 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 10710 private float mDownPositionX, mDownPositionY; 10711 private Runnable mHider; 10712 10713 public InsertionHandleView(Drawable drawable) { 10714 super(drawable, drawable); 10715 } 10716 10717 @Override 10718 public void show() { 10719 super.show(); 10720 10721 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 10722 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 10723 showActionPopupWindow(0); 10724 } 10725 10726 hideAfterDelay(); 10727 } 10728 10729 public void showWithActionPopup() { 10730 show(); 10731 showActionPopupWindow(0); 10732 } 10733 10734 private void hideAfterDelay() { 10735 removeHiderCallback(); 10736 if (mHider == null) { 10737 mHider = new Runnable() { 10738 public void run() { 10739 hide(); 10740 } 10741 }; 10742 } 10743 TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 10744 } 10745 10746 private void removeHiderCallback() { 10747 if (mHider != null) { 10748 TextView.this.removeCallbacks(mHider); 10749 } 10750 } 10751 10752 @Override 10753 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10754 return drawable.getIntrinsicWidth() / 2; 10755 } 10756 10757 @Override 10758 public boolean onTouchEvent(MotionEvent ev) { 10759 final boolean result = super.onTouchEvent(ev); 10760 10761 switch (ev.getActionMasked()) { 10762 case MotionEvent.ACTION_DOWN: 10763 mDownPositionX = ev.getRawX(); 10764 mDownPositionY = ev.getRawY(); 10765 break; 10766 10767 case MotionEvent.ACTION_UP: 10768 if (!offsetHasBeenChanged()) { 10769 final float deltaX = mDownPositionX - ev.getRawX(); 10770 final float deltaY = mDownPositionY - ev.getRawY(); 10771 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10772 if (distanceSquared < mSquaredTouchSlopDistance) { 10773 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 10774 // Tapping on the handle dismisses the displayed action popup 10775 mActionPopupWindow.hide(); 10776 } else { 10777 showWithActionPopup(); 10778 } 10779 } 10780 } 10781 hideAfterDelay(); 10782 break; 10783 10784 case MotionEvent.ACTION_CANCEL: 10785 hideAfterDelay(); 10786 break; 10787 10788 default: 10789 break; 10790 } 10791 10792 return result; 10793 } 10794 10795 @Override 10796 public int getCurrentCursorOffset() { 10797 return TextView.this.getSelectionStart(); 10798 } 10799 10800 @Override 10801 public void updateSelection(int offset) { 10802 Selection.setSelection((Spannable) mText, offset); 10803 } 10804 10805 @Override 10806 public void updatePosition(float x, float y) { 10807 positionAtCursorOffset(getOffsetForPosition(x, y), false); 10808 } 10809 10810 @Override 10811 void onHandleMoved() { 10812 super.onHandleMoved(); 10813 removeHiderCallback(); 10814 } 10815 10816 @Override 10817 public void onDetached() { 10818 super.onDetached(); 10819 removeHiderCallback(); 10820 } 10821 } 10822 10823 private class SelectionStartHandleView extends HandleView { 10824 10825 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10826 super(drawableLtr, drawableRtl); 10827 } 10828 10829 @Override 10830 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10831 if (isRtlRun) { 10832 return drawable.getIntrinsicWidth() / 4; 10833 } else { 10834 return (drawable.getIntrinsicWidth() * 3) / 4; 10835 } 10836 } 10837 10838 @Override 10839 public int getCurrentCursorOffset() { 10840 return TextView.this.getSelectionStart(); 10841 } 10842 10843 @Override 10844 public void updateSelection(int offset) { 10845 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 10846 updateDrawable(); 10847 } 10848 10849 @Override 10850 public void updatePosition(float x, float y) { 10851 int offset = getOffsetForPosition(x, y); 10852 10853 // Handles can not cross and selection is at least one character 10854 final int selectionEnd = getSelectionEnd(); 10855 if (offset >= selectionEnd) offset = Math.max(0, selectionEnd - 1); 10856 10857 positionAtCursorOffset(offset, false); 10858 } 10859 10860 public ActionPopupWindow getActionPopupWindow() { 10861 return mActionPopupWindow; 10862 } 10863 } 10864 10865 private class SelectionEndHandleView extends HandleView { 10866 10867 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10868 super(drawableLtr, drawableRtl); 10869 } 10870 10871 @Override 10872 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10873 if (isRtlRun) { 10874 return (drawable.getIntrinsicWidth() * 3) / 4; 10875 } else { 10876 return drawable.getIntrinsicWidth() / 4; 10877 } 10878 } 10879 10880 @Override 10881 public int getCurrentCursorOffset() { 10882 return TextView.this.getSelectionEnd(); 10883 } 10884 10885 @Override 10886 public void updateSelection(int offset) { 10887 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 10888 updateDrawable(); 10889 } 10890 10891 @Override 10892 public void updatePosition(float x, float y) { 10893 int offset = getOffsetForPosition(x, y); 10894 10895 // Handles can not cross and selection is at least one character 10896 final int selectionStart = getSelectionStart(); 10897 if (offset <= selectionStart) offset = Math.min(selectionStart + 1, mText.length()); 10898 10899 positionAtCursorOffset(offset, false); 10900 } 10901 10902 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 10903 mActionPopupWindow = actionPopupWindow; 10904 } 10905 } 10906 10907 /** 10908 * A CursorController instance can be used to control a cursor in the text. 10909 * It is not used outside of {@link TextView}. 10910 * @hide 10911 */ 10912 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 10913 /** 10914 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 10915 * See also {@link #hide()}. 10916 */ 10917 public void show(); 10918 10919 /** 10920 * Hide the cursor controller from screen. 10921 * See also {@link #show()}. 10922 */ 10923 public void hide(); 10924 10925 /** 10926 * Called when the view is detached from window. Perform house keeping task, such as 10927 * stopping Runnable thread that would otherwise keep a reference on the context, thus 10928 * preventing the activity from being recycled. 10929 */ 10930 public void onDetached(); 10931 } 10932 10933 private class InsertionPointCursorController implements CursorController { 10934 private InsertionHandleView mHandle; 10935 10936 public void show() { 10937 getHandle().show(); 10938 } 10939 10940 public void showWithActionPopup() { 10941 getHandle().showWithActionPopup(); 10942 } 10943 10944 public void hide() { 10945 if (mHandle != null) { 10946 mHandle.hide(); 10947 } 10948 } 10949 10950 public void onTouchModeChanged(boolean isInTouchMode) { 10951 if (!isInTouchMode) { 10952 hide(); 10953 } 10954 } 10955 10956 private InsertionHandleView getHandle() { 10957 if (mSelectHandleCenter == null) { 10958 mSelectHandleCenter = mContext.getResources().getDrawable( 10959 mTextSelectHandleRes); 10960 } 10961 if (mHandle == null) { 10962 mHandle = new InsertionHandleView(mSelectHandleCenter); 10963 } 10964 return mHandle; 10965 } 10966 10967 @Override 10968 public void onDetached() { 10969 final ViewTreeObserver observer = getViewTreeObserver(); 10970 observer.removeOnTouchModeChangeListener(this); 10971 10972 if (mHandle != null) mHandle.onDetached(); 10973 } 10974 } 10975 10976 private class SelectionModifierCursorController implements CursorController { 10977 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 10978 // The cursor controller handles, lazily created when shown. 10979 private SelectionStartHandleView mStartHandle; 10980 private SelectionEndHandleView mEndHandle; 10981 // The offsets of that last touch down event. Remembered to start selection there. 10982 private int mMinTouchOffset, mMaxTouchOffset; 10983 10984 // Double tap detection 10985 private long mPreviousTapUpTime = 0; 10986 private float mPreviousTapPositionX, mPreviousTapPositionY; 10987 10988 SelectionModifierCursorController() { 10989 resetTouchOffsets(); 10990 } 10991 10992 public void show() { 10993 if (isInBatchEditMode()) { 10994 return; 10995 } 10996 initDrawables(); 10997 initHandles(); 10998 hideInsertionPointCursorController(); 10999 } 11000 11001 private void initDrawables() { 11002 if (mSelectHandleLeft == null) { 11003 mSelectHandleLeft = mContext.getResources().getDrawable( 11004 mTextSelectHandleLeftRes); 11005 } 11006 if (mSelectHandleRight == null) { 11007 mSelectHandleRight = mContext.getResources().getDrawable( 11008 mTextSelectHandleRightRes); 11009 } 11010 } 11011 11012 private void initHandles() { 11013 // Lazy object creation has to be done before updatePosition() is called. 11014 if (mStartHandle == null) { 11015 mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); 11016 } 11017 if (mEndHandle == null) { 11018 mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); 11019 } 11020 11021 mStartHandle.show(); 11022 mEndHandle.show(); 11023 11024 // Make sure both left and right handles share the same ActionPopupWindow (so that 11025 // moving any of the handles hides the action popup). 11026 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 11027 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 11028 11029 hideInsertionPointCursorController(); 11030 } 11031 11032 public void hide() { 11033 if (mStartHandle != null) mStartHandle.hide(); 11034 if (mEndHandle != null) mEndHandle.hide(); 11035 } 11036 11037 public void onTouchEvent(MotionEvent event) { 11038 // This is done even when the View does not have focus, so that long presses can start 11039 // selection and tap can move cursor from this tap position. 11040 switch (event.getActionMasked()) { 11041 case MotionEvent.ACTION_DOWN: 11042 final float x = event.getX(); 11043 final float y = event.getY(); 11044 11045 // Remember finger down position, to be able to start selection from there 11046 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 11047 11048 // Double tap detection 11049 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 11050 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 11051 isPositionOnText(x, y)) { 11052 final float deltaX = x - mPreviousTapPositionX; 11053 final float deltaY = y - mPreviousTapPositionY; 11054 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 11055 if (distanceSquared < mSquaredTouchSlopDistance) { 11056 startSelectionActionMode(); 11057 mDiscardNextActionUp = true; 11058 } 11059 } 11060 11061 mPreviousTapPositionX = x; 11062 mPreviousTapPositionY = y; 11063 break; 11064 11065 case MotionEvent.ACTION_POINTER_DOWN: 11066 case MotionEvent.ACTION_POINTER_UP: 11067 // Handle multi-point gestures. Keep min and max offset positions. 11068 // Only activated for devices that correctly handle multi-touch. 11069 if (mContext.getPackageManager().hasSystemFeature( 11070 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 11071 updateMinAndMaxOffsets(event); 11072 } 11073 break; 11074 11075 case MotionEvent.ACTION_UP: 11076 mPreviousTapUpTime = SystemClock.uptimeMillis(); 11077 break; 11078 } 11079 } 11080 11081 /** 11082 * @param event 11083 */ 11084 private void updateMinAndMaxOffsets(MotionEvent event) { 11085 int pointerCount = event.getPointerCount(); 11086 for (int index = 0; index < pointerCount; index++) { 11087 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 11088 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 11089 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 11090 } 11091 } 11092 11093 public int getMinTouchOffset() { 11094 return mMinTouchOffset; 11095 } 11096 11097 public int getMaxTouchOffset() { 11098 return mMaxTouchOffset; 11099 } 11100 11101 public void resetTouchOffsets() { 11102 mMinTouchOffset = mMaxTouchOffset = -1; 11103 } 11104 11105 /** 11106 * @return true iff this controller is currently used to move the selection start. 11107 */ 11108 public boolean isSelectionStartDragged() { 11109 return mStartHandle != null && mStartHandle.isDragging(); 11110 } 11111 11112 public void onTouchModeChanged(boolean isInTouchMode) { 11113 if (!isInTouchMode) { 11114 hide(); 11115 } 11116 } 11117 11118 @Override 11119 public void onDetached() { 11120 final ViewTreeObserver observer = getViewTreeObserver(); 11121 observer.removeOnTouchModeChangeListener(this); 11122 11123 if (mStartHandle != null) mStartHandle.onDetached(); 11124 if (mEndHandle != null) mEndHandle.onDetached(); 11125 } 11126 } 11127 11128 private void hideInsertionPointCursorController() { 11129 // No need to create the controller to hide it. 11130 if (mInsertionPointCursorController != null) { 11131 mInsertionPointCursorController.hide(); 11132 } 11133 } 11134 11135 /** 11136 * Hides the insertion controller and stops text selection mode, hiding the selection controller 11137 */ 11138 private void hideControllers() { 11139 hideCursorControllers(); 11140 hideSpanControllers(); 11141 } 11142 11143 private void hideSpanControllers() { 11144 if (mChangeWatcher != null) { 11145 mChangeWatcher.hideControllers(); 11146 } 11147 } 11148 11149 private void hideCursorControllers() { 11150 if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) { 11151 // Should be done before hide insertion point controller since it triggers a show of it 11152 mSuggestionsPopupWindow.hide(); 11153 } 11154 hideInsertionPointCursorController(); 11155 stopSelectionActionMode(); 11156 } 11157 11158 /** 11159 * Get the character offset closest to the specified absolute position. A typical use case is to 11160 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 11161 * 11162 * @param x The horizontal absolute position of a point on screen 11163 * @param y The vertical absolute position of a point on screen 11164 * @return the character offset for the character whose position is closest to the specified 11165 * position. Returns -1 if there is no layout. 11166 */ 11167 public int getOffsetForPosition(float x, float y) { 11168 if (getLayout() == null) return -1; 11169 final int line = getLineAtCoordinate(y); 11170 final int offset = getOffsetAtCoordinate(line, x); 11171 return offset; 11172 } 11173 11174 private float convertToLocalHorizontalCoordinate(float x) { 11175 x -= getTotalPaddingLeft(); 11176 // Clamp the position to inside of the view. 11177 x = Math.max(0.0f, x); 11178 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 11179 x += getScrollX(); 11180 return x; 11181 } 11182 11183 private int getLineAtCoordinate(float y) { 11184 y -= getTotalPaddingTop(); 11185 // Clamp the position to inside of the view. 11186 y = Math.max(0.0f, y); 11187 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 11188 y += getScrollY(); 11189 return getLayout().getLineForVertical((int) y); 11190 } 11191 11192 private int getOffsetAtCoordinate(int line, float x) { 11193 x = convertToLocalHorizontalCoordinate(x); 11194 return getLayout().getOffsetForHorizontal(line, x); 11195 } 11196 11197 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 11198 * in the view. Returns false when the position is in the empty space of left/right of text. 11199 */ 11200 private boolean isPositionOnText(float x, float y) { 11201 if (getLayout() == null) return false; 11202 11203 final int line = getLineAtCoordinate(y); 11204 x = convertToLocalHorizontalCoordinate(x); 11205 11206 if (x < getLayout().getLineLeft(line)) return false; 11207 if (x > getLayout().getLineRight(line)) return false; 11208 return true; 11209 } 11210 11211 @Override 11212 public boolean onDragEvent(DragEvent event) { 11213 switch (event.getAction()) { 11214 case DragEvent.ACTION_DRAG_STARTED: 11215 return hasInsertionController(); 11216 11217 case DragEvent.ACTION_DRAG_ENTERED: 11218 TextView.this.requestFocus(); 11219 return true; 11220 11221 case DragEvent.ACTION_DRAG_LOCATION: 11222 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11223 Selection.setSelection((Spannable)mText, offset); 11224 return true; 11225 11226 case DragEvent.ACTION_DROP: 11227 onDrop(event); 11228 return true; 11229 11230 case DragEvent.ACTION_DRAG_ENDED: 11231 case DragEvent.ACTION_DRAG_EXITED: 11232 default: 11233 return true; 11234 } 11235 } 11236 11237 private void onDrop(DragEvent event) { 11238 StringBuilder content = new StringBuilder(""); 11239 ClipData clipData = event.getClipData(); 11240 final int itemCount = clipData.getItemCount(); 11241 for (int i=0; i < itemCount; i++) { 11242 Item item = clipData.getItemAt(i); 11243 content.append(item.coerceToText(TextView.this.mContext)); 11244 } 11245 11246 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11247 11248 Object localState = event.getLocalState(); 11249 DragLocalState dragLocalState = null; 11250 if (localState instanceof DragLocalState) { 11251 dragLocalState = (DragLocalState) localState; 11252 } 11253 boolean dragDropIntoItself = dragLocalState != null && 11254 dragLocalState.sourceTextView == this; 11255 11256 if (dragDropIntoItself) { 11257 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 11258 // A drop inside the original selection discards the drop. 11259 return; 11260 } 11261 } 11262 11263 final int originalLength = mText.length(); 11264 long minMax = prepareSpacesAroundPaste(offset, offset, content); 11265 int min = extractRangeStartFromLong(minMax); 11266 int max = extractRangeEndFromLong(minMax); 11267 11268 Selection.setSelection((Spannable) mText, max); 11269 replaceText_internal(min, max, content); 11270 11271 if (dragDropIntoItself) { 11272 int dragSourceStart = dragLocalState.start; 11273 int dragSourceEnd = dragLocalState.end; 11274 if (max <= dragSourceStart) { 11275 // Inserting text before selection has shifted positions 11276 final int shift = mText.length() - originalLength; 11277 dragSourceStart += shift; 11278 dragSourceEnd += shift; 11279 } 11280 11281 // Delete original selection 11282 deleteText_internal(dragSourceStart, dragSourceEnd); 11283 11284 // Make sure we do not leave two adjacent spaces. 11285 if ((dragSourceStart == 0 || 11286 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 11287 (dragSourceStart == mText.length() || 11288 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 11289 final int pos = dragSourceStart == mText.length() ? 11290 dragSourceStart - 1 : dragSourceStart; 11291 deleteText_internal(pos, pos + 1); 11292 } 11293 } 11294 } 11295 11296 /** 11297 * @return True if this view supports insertion handles. 11298 */ 11299 boolean hasInsertionController() { 11300 return mInsertionControllerEnabled; 11301 } 11302 11303 /** 11304 * @return True if this view supports selection handles. 11305 */ 11306 boolean hasSelectionController() { 11307 return mSelectionControllerEnabled; 11308 } 11309 11310 InsertionPointCursorController getInsertionController() { 11311 if (!mInsertionControllerEnabled) { 11312 return null; 11313 } 11314 11315 if (mInsertionPointCursorController == null) { 11316 mInsertionPointCursorController = new InsertionPointCursorController(); 11317 11318 final ViewTreeObserver observer = getViewTreeObserver(); 11319 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 11320 } 11321 11322 return mInsertionPointCursorController; 11323 } 11324 11325 SelectionModifierCursorController getSelectionController() { 11326 if (!mSelectionControllerEnabled) { 11327 return null; 11328 } 11329 11330 if (mSelectionModifierCursorController == null) { 11331 mSelectionModifierCursorController = new SelectionModifierCursorController(); 11332 11333 final ViewTreeObserver observer = getViewTreeObserver(); 11334 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 11335 } 11336 11337 return mSelectionModifierCursorController; 11338 } 11339 11340 boolean isInBatchEditMode() { 11341 final InputMethodState ims = mInputMethodState; 11342 if (ims != null) { 11343 return ims.mBatchEditNesting > 0; 11344 } 11345 return mInBatchEditControllers; 11346 } 11347 11348 @Override 11349 protected void resolveTextDirection() { 11350 if (hasPasswordTransformationMethod()) { 11351 mTextDir = TextDirectionHeuristics.LOCALE; 11352 return; 11353 } 11354 11355 // Always need to resolve layout direction first 11356 final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL); 11357 11358 // Then resolve text direction on the parent 11359 super.resolveTextDirection(); 11360 11361 // Now, we can select the heuristic 11362 int textDir = getResolvedTextDirection(); 11363 switch (textDir) { 11364 default: 11365 case TEXT_DIRECTION_FIRST_STRONG: 11366 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 11367 TextDirectionHeuristics.FIRSTSTRONG_LTR); 11368 break; 11369 case TEXT_DIRECTION_ANY_RTL: 11370 mTextDir = TextDirectionHeuristics.ANYRTL_LTR; 11371 break; 11372 case TEXT_DIRECTION_LTR: 11373 mTextDir = TextDirectionHeuristics.LTR; 11374 break; 11375 case TEXT_DIRECTION_RTL: 11376 mTextDir = TextDirectionHeuristics.RTL; 11377 break; 11378 } 11379 } 11380 11381 /** 11382 * Subclasses will need to override this method to implement their own way of resolving 11383 * drawables depending on the layout direction. 11384 * 11385 * A call to the super method will be required from the subclasses implementation. 11386 * 11387 */ 11388 protected void resolveDrawables() { 11389 // No need to resolve twice 11390 if (mResolvedDrawables) { 11391 return; 11392 } 11393 // No drawable to resolve 11394 if (mDrawables == null) { 11395 return; 11396 } 11397 // No relative drawable to resolve 11398 if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) { 11399 mResolvedDrawables = true; 11400 return; 11401 } 11402 11403 Drawables dr = mDrawables; 11404 switch(getResolvedLayoutDirection()) { 11405 case LAYOUT_DIRECTION_RTL: 11406 if (dr.mDrawableStart != null) { 11407 dr.mDrawableRight = dr.mDrawableStart; 11408 11409 dr.mDrawableSizeRight = dr.mDrawableSizeStart; 11410 dr.mDrawableHeightRight = dr.mDrawableHeightStart; 11411 } 11412 if (dr.mDrawableEnd != null) { 11413 dr.mDrawableLeft = dr.mDrawableEnd; 11414 11415 dr.mDrawableSizeLeft = dr.mDrawableSizeEnd; 11416 dr.mDrawableHeightLeft = dr.mDrawableHeightEnd; 11417 } 11418 break; 11419 11420 case LAYOUT_DIRECTION_LTR: 11421 default: 11422 if (dr.mDrawableStart != null) { 11423 dr.mDrawableLeft = dr.mDrawableStart; 11424 11425 dr.mDrawableSizeLeft = dr.mDrawableSizeStart; 11426 dr.mDrawableHeightLeft = dr.mDrawableHeightStart; 11427 } 11428 if (dr.mDrawableEnd != null) { 11429 dr.mDrawableRight = dr.mDrawableEnd; 11430 11431 dr.mDrawableSizeRight = dr.mDrawableSizeEnd; 11432 dr.mDrawableHeightRight = dr.mDrawableHeightEnd; 11433 } 11434 break; 11435 } 11436 mResolvedDrawables = true; 11437 } 11438 11439 protected void resetResolvedDrawables() { 11440 mResolvedDrawables = false; 11441 } 11442 11443 /** 11444 * @hide 11445 */ 11446 protected void viewClicked(InputMethodManager imm) { 11447 if (imm != null) { 11448 imm.viewClicked(this); 11449 } 11450 } 11451 11452 /** 11453 * Deletes the range of text [start, end[. 11454 * @hide 11455 */ 11456 protected void deleteText_internal(int start, int end) { 11457 ((Editable) mText).delete(start, end); 11458 } 11459 11460 /** 11461 * Replaces the range of text [start, end[ by replacement text 11462 * @hide 11463 */ 11464 protected void replaceText_internal(int start, int end, CharSequence text) { 11465 ((Editable) mText).replace(start, end, text); 11466 } 11467 11468 /** 11469 * Sets a span on the specified range of text 11470 * @hide 11471 */ 11472 protected void setSpan_internal(Object span, int start, int end, int flags) { 11473 ((Editable) mText).setSpan(span, start, end, flags); 11474 } 11475 11476 /** 11477 * Moves the cursor to the specified offset position in text 11478 * @hide 11479 */ 11480 protected void setCursorPosition_internal(int start, int end) { 11481 Selection.setSelection(((Editable) mText), start, end); 11482 } 11483 11484 @ViewDebug.ExportedProperty(category = "text") 11485 private CharSequence mText; 11486 private CharSequence mTransformed; 11487 private BufferType mBufferType = BufferType.NORMAL; 11488 11489 private int mInputType = EditorInfo.TYPE_NULL; 11490 private CharSequence mHint; 11491 private Layout mHintLayout; 11492 11493 private KeyListener mInput; 11494 11495 private MovementMethod mMovement; 11496 private TransformationMethod mTransformation; 11497 private boolean mAllowTransformationLengthChange; 11498 private ChangeWatcher mChangeWatcher; 11499 11500 private ArrayList<TextWatcher> mListeners = null; 11501 11502 // display attributes 11503 private final TextPaint mTextPaint; 11504 private boolean mUserSetTextScaleX; 11505 private final Paint mHighlightPaint; 11506 private int mHighlightColor = 0x6633B5E5; 11507 /** 11508 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 11509 * this field being protected. Will be restored as private when lineHeight 11510 * feature request 3215097 is implemented 11511 * @hide 11512 */ 11513 protected Layout mLayout; 11514 11515 private long mShowCursor; 11516 private Blink mBlink; 11517 private boolean mCursorVisible = true; 11518 11519 // Cursor Controllers. 11520 private InsertionPointCursorController mInsertionPointCursorController; 11521 private SelectionModifierCursorController mSelectionModifierCursorController; 11522 private ActionMode mSelectionActionMode; 11523 private boolean mInsertionControllerEnabled; 11524 private boolean mSelectionControllerEnabled; 11525 private boolean mInBatchEditControllers; 11526 11527 private boolean mSelectAllOnFocus = false; 11528 11529 private int mGravity = Gravity.TOP | Gravity.START; 11530 private boolean mHorizontallyScrolling; 11531 11532 private int mAutoLinkMask; 11533 private boolean mLinksClickable = true; 11534 11535 private float mSpacingMult = 1.0f; 11536 private float mSpacingAdd = 0.0f; 11537 private boolean mTextIsSelectable = false; 11538 11539 private static final int LINES = 1; 11540 private static final int EMS = LINES; 11541 private static final int PIXELS = 2; 11542 11543 private int mMaximum = Integer.MAX_VALUE; 11544 private int mMaxMode = LINES; 11545 private int mMinimum = 0; 11546 private int mMinMode = LINES; 11547 11548 private int mOldMaximum = mMaximum; 11549 private int mOldMaxMode = mMaxMode; 11550 11551 private int mMaxWidth = Integer.MAX_VALUE; 11552 private int mMaxWidthMode = PIXELS; 11553 private int mMinWidth = 0; 11554 private int mMinWidthMode = PIXELS; 11555 11556 private boolean mSingleLine; 11557 private int mDesiredHeightAtMeasure = -1; 11558 private boolean mIncludePad = true; 11559 11560 // tmp primitives, so we don't alloc them on each draw 11561 private Path mHighlightPath; 11562 private boolean mHighlightPathBogus = true; 11563 private static final RectF sTempRect = new RectF(); 11564 private static final float[] sTmpPosition = new float[2]; 11565 11566 // XXX should be much larger 11567 private static final int VERY_WIDE = 1024*1024; 11568 11569 private static final int BLINK = 500; 11570 11571 private static final int ANIMATED_SCROLL_GAP = 250; 11572 private long mLastScroll; 11573 private Scroller mScroller = null; 11574 11575 private BoringLayout.Metrics mBoring; 11576 private BoringLayout.Metrics mHintBoring; 11577 11578 private BoringLayout mSavedLayout, mSavedHintLayout; 11579 11580 private TextDirectionHeuristic mTextDir = null; 11581 11582 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 11583 private InputFilter[] mFilters = NO_FILTERS; 11584 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 11585 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 11586 // System wide time for last cut or copy action. 11587 private static long sLastCutOrCopyTime; 11588 // Used to highlight a word when it is corrected by the IME 11589 private CorrectionHighlighter mCorrectionHighlighter; 11590 // New state used to change background based on whether this TextView is multiline. 11591 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 11592 } 11593