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 com.android.internal.util.FastMath; 20 import com.android.internal.widget.EditableInputConnection; 21 22 import org.xmlpull.v1.XmlPullParserException; 23 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.pm.PackageManager; 27 import android.content.res.ColorStateList; 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.Paint; 33 import android.graphics.Path; 34 import android.graphics.Rect; 35 import android.graphics.RectF; 36 import android.graphics.Typeface; 37 import android.graphics.drawable.Drawable; 38 import android.inputmethodservice.ExtractEditText; 39 import android.os.Bundle; 40 import android.os.Handler; 41 import android.os.Message; 42 import android.os.Parcel; 43 import android.os.Parcelable; 44 import android.os.ResultReceiver; 45 import android.os.SystemClock; 46 import android.text.BoringLayout; 47 import android.text.ClipboardManager; 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.Spanned; 61 import android.text.SpannedString; 62 import android.text.StaticLayout; 63 import android.text.TextPaint; 64 import android.text.TextUtils; 65 import android.text.TextWatcher; 66 import android.text.method.DateKeyListener; 67 import android.text.method.DateTimeKeyListener; 68 import android.text.method.DialerKeyListener; 69 import android.text.method.DigitsKeyListener; 70 import android.text.method.KeyListener; 71 import android.text.method.LinkMovementMethod; 72 import android.text.method.MetaKeyKeyListener; 73 import android.text.method.MovementMethod; 74 import android.text.method.PasswordTransformationMethod; 75 import android.text.method.SingleLineTransformationMethod; 76 import android.text.method.TextKeyListener; 77 import android.text.method.TimeKeyListener; 78 import android.text.method.TransformationMethod; 79 import android.text.style.ParagraphStyle; 80 import android.text.style.URLSpan; 81 import android.text.style.UpdateAppearance; 82 import android.text.util.Linkify; 83 import android.util.AttributeSet; 84 import android.util.FloatMath; 85 import android.util.Log; 86 import android.util.TypedValue; 87 import android.view.ContextMenu; 88 import android.view.Gravity; 89 import android.view.KeyEvent; 90 import android.view.LayoutInflater; 91 import android.view.MenuItem; 92 import android.view.MotionEvent; 93 import android.view.View; 94 import android.view.ViewConfiguration; 95 import android.view.ViewDebug; 96 import android.view.ViewGroup; 97 import android.view.ViewGroup.LayoutParams; 98 import android.view.ViewParent; 99 import android.view.ViewRoot; 100 import android.view.ViewTreeObserver; 101 import android.view.WindowManager; 102 import android.view.accessibility.AccessibilityEvent; 103 import android.view.accessibility.AccessibilityManager; 104 import android.view.animation.AnimationUtils; 105 import android.view.inputmethod.BaseInputConnection; 106 import android.view.inputmethod.CompletionInfo; 107 import android.view.inputmethod.EditorInfo; 108 import android.view.inputmethod.ExtractedText; 109 import android.view.inputmethod.ExtractedTextRequest; 110 import android.view.inputmethod.InputConnection; 111 import android.view.inputmethod.InputMethodManager; 112 import android.widget.RemoteViews.RemoteView; 113 114 import java.io.IOException; 115 import java.lang.ref.WeakReference; 116 import java.util.ArrayList; 117 118 /** 119 * Displays text to the user and optionally allows them to edit it. A TextView 120 * is a complete text editor, however the basic class is configured to not 121 * allow editing; see {@link EditText} for a subclass that configures the text 122 * view for editing. 123 * 124 * <p> 125 * <b>XML attributes</b> 126 * <p> 127 * See {@link android.R.styleable#TextView TextView Attributes}, 128 * {@link android.R.styleable#View View Attributes} 129 * 130 * @attr ref android.R.styleable#TextView_text 131 * @attr ref android.R.styleable#TextView_bufferType 132 * @attr ref android.R.styleable#TextView_hint 133 * @attr ref android.R.styleable#TextView_textColor 134 * @attr ref android.R.styleable#TextView_textColorHighlight 135 * @attr ref android.R.styleable#TextView_textColorHint 136 * @attr ref android.R.styleable#TextView_textAppearance 137 * @attr ref android.R.styleable#TextView_textColorLink 138 * @attr ref android.R.styleable#TextView_textSize 139 * @attr ref android.R.styleable#TextView_textScaleX 140 * @attr ref android.R.styleable#TextView_typeface 141 * @attr ref android.R.styleable#TextView_textStyle 142 * @attr ref android.R.styleable#TextView_cursorVisible 143 * @attr ref android.R.styleable#TextView_maxLines 144 * @attr ref android.R.styleable#TextView_maxHeight 145 * @attr ref android.R.styleable#TextView_lines 146 * @attr ref android.R.styleable#TextView_height 147 * @attr ref android.R.styleable#TextView_minLines 148 * @attr ref android.R.styleable#TextView_minHeight 149 * @attr ref android.R.styleable#TextView_maxEms 150 * @attr ref android.R.styleable#TextView_maxWidth 151 * @attr ref android.R.styleable#TextView_ems 152 * @attr ref android.R.styleable#TextView_width 153 * @attr ref android.R.styleable#TextView_minEms 154 * @attr ref android.R.styleable#TextView_minWidth 155 * @attr ref android.R.styleable#TextView_gravity 156 * @attr ref android.R.styleable#TextView_scrollHorizontally 157 * @attr ref android.R.styleable#TextView_password 158 * @attr ref android.R.styleable#TextView_singleLine 159 * @attr ref android.R.styleable#TextView_selectAllOnFocus 160 * @attr ref android.R.styleable#TextView_includeFontPadding 161 * @attr ref android.R.styleable#TextView_maxLength 162 * @attr ref android.R.styleable#TextView_shadowColor 163 * @attr ref android.R.styleable#TextView_shadowDx 164 * @attr ref android.R.styleable#TextView_shadowDy 165 * @attr ref android.R.styleable#TextView_shadowRadius 166 * @attr ref android.R.styleable#TextView_autoLink 167 * @attr ref android.R.styleable#TextView_linksClickable 168 * @attr ref android.R.styleable#TextView_numeric 169 * @attr ref android.R.styleable#TextView_digits 170 * @attr ref android.R.styleable#TextView_phoneNumber 171 * @attr ref android.R.styleable#TextView_inputMethod 172 * @attr ref android.R.styleable#TextView_capitalize 173 * @attr ref android.R.styleable#TextView_autoText 174 * @attr ref android.R.styleable#TextView_editable 175 * @attr ref android.R.styleable#TextView_freezesText 176 * @attr ref android.R.styleable#TextView_ellipsize 177 * @attr ref android.R.styleable#TextView_drawableTop 178 * @attr ref android.R.styleable#TextView_drawableBottom 179 * @attr ref android.R.styleable#TextView_drawableRight 180 * @attr ref android.R.styleable#TextView_drawableLeft 181 * @attr ref android.R.styleable#TextView_drawablePadding 182 * @attr ref android.R.styleable#TextView_lineSpacingExtra 183 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 184 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 185 * @attr ref android.R.styleable#TextView_inputType 186 * @attr ref android.R.styleable#TextView_imeOptions 187 * @attr ref android.R.styleable#TextView_privateImeOptions 188 * @attr ref android.R.styleable#TextView_imeActionLabel 189 * @attr ref android.R.styleable#TextView_imeActionId 190 * @attr ref android.R.styleable#TextView_editorExtras 191 */ 192 @RemoteView 193 public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 194 static final String LOG_TAG = "TextView"; 195 static final boolean DEBUG_EXTRACT = false; 196 197 private static int PRIORITY = 100; 198 199 final int[] mTempCoords = new int[2]; 200 Rect mTempRect; 201 202 private ColorStateList mTextColor; 203 private int mCurTextColor; 204 private ColorStateList mHintTextColor; 205 private ColorStateList mLinkTextColor; 206 private int mCurHintTextColor; 207 private boolean mFreezesText; 208 private boolean mFrozenWithFocus; 209 private boolean mTemporaryDetach; 210 private boolean mDispatchTemporaryDetach; 211 212 private boolean mEatTouchRelease = false; 213 private boolean mScrolled = false; 214 215 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 216 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 217 218 private float mShadowRadius, mShadowDx, mShadowDy; 219 220 private static final int PREDRAW_NOT_REGISTERED = 0; 221 private static final int PREDRAW_PENDING = 1; 222 private static final int PREDRAW_DONE = 2; 223 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 224 225 private TextUtils.TruncateAt mEllipsize = null; 226 227 // Enum for the "typeface" XML parameter. 228 // TODO: How can we get this from the XML instead of hardcoding it here? 229 private static final int SANS = 1; 230 private static final int SERIF = 2; 231 private static final int MONOSPACE = 3; 232 233 // Bitfield for the "numeric" XML parameter. 234 // TODO: How can we get this from the XML instead of hardcoding it here? 235 private static final int SIGNED = 2; 236 private static final int DECIMAL = 4; 237 238 class Drawables { 239 final Rect mCompoundRect = new Rect(); 240 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 241 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 242 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 243 int mDrawablePadding; 244 } 245 private Drawables mDrawables; 246 247 private CharSequence mError; 248 private boolean mErrorWasChanged; 249 private ErrorPopup mPopup; 250 /** 251 * This flag is set if the TextView tries to display an error before it 252 * is attached to the window (so its position is still unknown). 253 * It causes the error to be shown later, when onAttachedToWindow() 254 * is called. 255 */ 256 private boolean mShowErrorAfterAttach; 257 258 private CharWrapper mCharWrapper = null; 259 260 private boolean mSelectionMoved = false; 261 private boolean mTouchFocusSelected = false; 262 263 private Marquee mMarquee; 264 private boolean mRestartMarquee; 265 266 private int mMarqueeRepeatLimit = 3; 267 268 class InputContentType { 269 int imeOptions = EditorInfo.IME_NULL; 270 String privateImeOptions; 271 CharSequence imeActionLabel; 272 int imeActionId; 273 Bundle extras; 274 OnEditorActionListener onEditorActionListener; 275 boolean enterDown; 276 } 277 InputContentType mInputContentType; 278 279 class InputMethodState { 280 Rect mCursorRectInWindow = new Rect(); 281 RectF mTmpRectF = new RectF(); 282 float[] mTmpOffset = new float[2]; 283 ExtractedTextRequest mExtracting; 284 final ExtractedText mTmpExtracted = new ExtractedText(); 285 int mBatchEditNesting; 286 boolean mCursorChanged; 287 boolean mSelectionModeChanged; 288 boolean mContentChanged; 289 int mChangedStart, mChangedEnd, mChangedDelta; 290 } 291 InputMethodState mInputMethodState; 292 293 int mTextSelectHandleLeftRes; 294 int mTextSelectHandleRightRes; 295 int mTextSelectHandleRes; 296 297 Drawable mSelectHandleLeft; 298 Drawable mSelectHandleRight; 299 Drawable mSelectHandleCenter; 300 301 // Set when this TextView gained focus with some text selected. Will start selection mode. 302 private boolean mCreatedWithASelection = false; 303 304 private boolean mNoContextMenuOnUp = false; 305 306 /* 307 * Kick-start the font cache for the zygote process (to pay the cost of 308 * initializing freetype for our default font only once). 309 */ 310 static { 311 Paint p = new Paint(); 312 p.setAntiAlias(true); 313 // We don't care about the result, just the side-effect of measuring. 314 p.measureText("H"); 315 } 316 317 /** 318 * Interface definition for a callback to be invoked when an action is 319 * performed on the editor. 320 */ 321 public interface OnEditorActionListener { 322 /** 323 * Called when an action is being performed. 324 * 325 * @param v The view that was clicked. 326 * @param actionId Identifier of the action. This will be either the 327 * identifier you supplied, or {@link EditorInfo#IME_NULL 328 * EditorInfo.IME_NULL} if being called due to the enter key 329 * being pressed. 330 * @param event If triggered by an enter key, this is the event; 331 * otherwise, this is null. 332 * @return Return true if you have consumed the action, else false. 333 */ 334 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 335 } 336 337 public TextView(Context context) { 338 this(context, null); 339 } 340 341 public TextView(Context context, 342 AttributeSet attrs) { 343 this(context, attrs, com.android.internal.R.attr.textViewStyle); 344 } 345 346 @SuppressWarnings("deprecation") 347 public TextView(Context context, 348 AttributeSet attrs, 349 int defStyle) { 350 super(context, attrs, defStyle); 351 mText = ""; 352 353 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 354 mTextPaint.density = getResources().getDisplayMetrics().density; 355 mTextPaint.setCompatibilityScaling( 356 getResources().getCompatibilityInfo().applicationScale); 357 358 // If we get the paint from the skin, we should set it to left, since 359 // the layout always wants it to be left. 360 // mTextPaint.setTextAlign(Paint.Align.LEFT); 361 362 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 363 mHighlightPaint.setCompatibilityScaling( 364 getResources().getCompatibilityInfo().applicationScale); 365 366 mMovement = getDefaultMovementMethod(); 367 mTransformation = null; 368 369 TypedArray a = 370 context.obtainStyledAttributes( 371 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 372 373 int textColorHighlight = 0; 374 ColorStateList textColor = null; 375 ColorStateList textColorHint = null; 376 ColorStateList textColorLink = null; 377 int textSize = 15; 378 int typefaceIndex = -1; 379 int styleIndex = -1; 380 381 /* 382 * Look the appearance up without checking first if it exists because 383 * almost every TextView has one and it greatly simplifies the logic 384 * to be able to parse the appearance first and then let specific tags 385 * for this View override it. 386 */ 387 TypedArray appearance = null; 388 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 389 if (ap != -1) { 390 appearance = context.obtainStyledAttributes(ap, 391 com.android.internal.R.styleable. 392 TextAppearance); 393 } 394 if (appearance != null) { 395 int n = appearance.getIndexCount(); 396 for (int i = 0; i < n; i++) { 397 int attr = appearance.getIndex(i); 398 399 switch (attr) { 400 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 401 textColorHighlight = appearance.getColor(attr, textColorHighlight); 402 break; 403 404 case com.android.internal.R.styleable.TextAppearance_textColor: 405 textColor = appearance.getColorStateList(attr); 406 break; 407 408 case com.android.internal.R.styleable.TextAppearance_textColorHint: 409 textColorHint = appearance.getColorStateList(attr); 410 break; 411 412 case com.android.internal.R.styleable.TextAppearance_textColorLink: 413 textColorLink = appearance.getColorStateList(attr); 414 break; 415 416 case com.android.internal.R.styleable.TextAppearance_textSize: 417 textSize = appearance.getDimensionPixelSize(attr, textSize); 418 break; 419 420 case com.android.internal.R.styleable.TextAppearance_typeface: 421 typefaceIndex = appearance.getInt(attr, -1); 422 break; 423 424 case com.android.internal.R.styleable.TextAppearance_textStyle: 425 styleIndex = appearance.getInt(attr, -1); 426 break; 427 } 428 } 429 430 appearance.recycle(); 431 } 432 433 boolean editable = getDefaultEditable(); 434 CharSequence inputMethod = null; 435 int numeric = 0; 436 CharSequence digits = null; 437 boolean phone = false; 438 boolean autotext = false; 439 int autocap = -1; 440 int buffertype = 0; 441 boolean selectallonfocus = false; 442 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 443 drawableBottom = null; 444 int drawablePadding = 0; 445 int ellipsize = -1; 446 boolean singleLine = false; 447 int maxlength = -1; 448 CharSequence text = ""; 449 CharSequence hint = null; 450 int shadowcolor = 0; 451 float dx = 0, dy = 0, r = 0; 452 boolean password = false; 453 int inputType = EditorInfo.TYPE_NULL; 454 455 int n = a.getIndexCount(); 456 for (int i = 0; i < n; i++) { 457 int attr = a.getIndex(i); 458 459 switch (attr) { 460 case com.android.internal.R.styleable.TextView_editable: 461 editable = a.getBoolean(attr, editable); 462 break; 463 464 case com.android.internal.R.styleable.TextView_inputMethod: 465 inputMethod = a.getText(attr); 466 break; 467 468 case com.android.internal.R.styleable.TextView_numeric: 469 numeric = a.getInt(attr, numeric); 470 break; 471 472 case com.android.internal.R.styleable.TextView_digits: 473 digits = a.getText(attr); 474 break; 475 476 case com.android.internal.R.styleable.TextView_phoneNumber: 477 phone = a.getBoolean(attr, phone); 478 break; 479 480 case com.android.internal.R.styleable.TextView_autoText: 481 autotext = a.getBoolean(attr, autotext); 482 break; 483 484 case com.android.internal.R.styleable.TextView_capitalize: 485 autocap = a.getInt(attr, autocap); 486 break; 487 488 case com.android.internal.R.styleable.TextView_bufferType: 489 buffertype = a.getInt(attr, buffertype); 490 break; 491 492 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 493 selectallonfocus = a.getBoolean(attr, selectallonfocus); 494 break; 495 496 case com.android.internal.R.styleable.TextView_autoLink: 497 mAutoLinkMask = a.getInt(attr, 0); 498 break; 499 500 case com.android.internal.R.styleable.TextView_linksClickable: 501 mLinksClickable = a.getBoolean(attr, true); 502 break; 503 504 case com.android.internal.R.styleable.TextView_drawableLeft: 505 drawableLeft = a.getDrawable(attr); 506 break; 507 508 case com.android.internal.R.styleable.TextView_drawableTop: 509 drawableTop = a.getDrawable(attr); 510 break; 511 512 case com.android.internal.R.styleable.TextView_drawableRight: 513 drawableRight = a.getDrawable(attr); 514 break; 515 516 case com.android.internal.R.styleable.TextView_drawableBottom: 517 drawableBottom = a.getDrawable(attr); 518 break; 519 520 case com.android.internal.R.styleable.TextView_drawablePadding: 521 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 522 break; 523 524 case com.android.internal.R.styleable.TextView_maxLines: 525 setMaxLines(a.getInt(attr, -1)); 526 break; 527 528 case com.android.internal.R.styleable.TextView_maxHeight: 529 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 530 break; 531 532 case com.android.internal.R.styleable.TextView_lines: 533 setLines(a.getInt(attr, -1)); 534 break; 535 536 case com.android.internal.R.styleable.TextView_height: 537 setHeight(a.getDimensionPixelSize(attr, -1)); 538 break; 539 540 case com.android.internal.R.styleable.TextView_minLines: 541 setMinLines(a.getInt(attr, -1)); 542 break; 543 544 case com.android.internal.R.styleable.TextView_minHeight: 545 setMinHeight(a.getDimensionPixelSize(attr, -1)); 546 break; 547 548 case com.android.internal.R.styleable.TextView_maxEms: 549 setMaxEms(a.getInt(attr, -1)); 550 break; 551 552 case com.android.internal.R.styleable.TextView_maxWidth: 553 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 554 break; 555 556 case com.android.internal.R.styleable.TextView_ems: 557 setEms(a.getInt(attr, -1)); 558 break; 559 560 case com.android.internal.R.styleable.TextView_width: 561 setWidth(a.getDimensionPixelSize(attr, -1)); 562 break; 563 564 case com.android.internal.R.styleable.TextView_minEms: 565 setMinEms(a.getInt(attr, -1)); 566 break; 567 568 case com.android.internal.R.styleable.TextView_minWidth: 569 setMinWidth(a.getDimensionPixelSize(attr, -1)); 570 break; 571 572 case com.android.internal.R.styleable.TextView_gravity: 573 setGravity(a.getInt(attr, -1)); 574 break; 575 576 case com.android.internal.R.styleable.TextView_hint: 577 hint = a.getText(attr); 578 break; 579 580 case com.android.internal.R.styleable.TextView_text: 581 text = a.getText(attr); 582 break; 583 584 case com.android.internal.R.styleable.TextView_scrollHorizontally: 585 if (a.getBoolean(attr, false)) { 586 setHorizontallyScrolling(true); 587 } 588 break; 589 590 case com.android.internal.R.styleable.TextView_singleLine: 591 singleLine = a.getBoolean(attr, singleLine); 592 break; 593 594 case com.android.internal.R.styleable.TextView_ellipsize: 595 ellipsize = a.getInt(attr, ellipsize); 596 break; 597 598 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 599 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 600 break; 601 602 case com.android.internal.R.styleable.TextView_includeFontPadding: 603 if (!a.getBoolean(attr, true)) { 604 setIncludeFontPadding(false); 605 } 606 break; 607 608 case com.android.internal.R.styleable.TextView_cursorVisible: 609 if (!a.getBoolean(attr, true)) { 610 setCursorVisible(false); 611 } 612 break; 613 614 case com.android.internal.R.styleable.TextView_maxLength: 615 maxlength = a.getInt(attr, -1); 616 break; 617 618 case com.android.internal.R.styleable.TextView_textScaleX: 619 setTextScaleX(a.getFloat(attr, 1.0f)); 620 break; 621 622 case com.android.internal.R.styleable.TextView_freezesText: 623 mFreezesText = a.getBoolean(attr, false); 624 break; 625 626 case com.android.internal.R.styleable.TextView_shadowColor: 627 shadowcolor = a.getInt(attr, 0); 628 break; 629 630 case com.android.internal.R.styleable.TextView_shadowDx: 631 dx = a.getFloat(attr, 0); 632 break; 633 634 case com.android.internal.R.styleable.TextView_shadowDy: 635 dy = a.getFloat(attr, 0); 636 break; 637 638 case com.android.internal.R.styleable.TextView_shadowRadius: 639 r = a.getFloat(attr, 0); 640 break; 641 642 case com.android.internal.R.styleable.TextView_enabled: 643 setEnabled(a.getBoolean(attr, isEnabled())); 644 break; 645 646 case com.android.internal.R.styleable.TextView_textColorHighlight: 647 textColorHighlight = a.getColor(attr, textColorHighlight); 648 break; 649 650 case com.android.internal.R.styleable.TextView_textColor: 651 textColor = a.getColorStateList(attr); 652 break; 653 654 case com.android.internal.R.styleable.TextView_textColorHint: 655 textColorHint = a.getColorStateList(attr); 656 break; 657 658 case com.android.internal.R.styleable.TextView_textColorLink: 659 textColorLink = a.getColorStateList(attr); 660 break; 661 662 case com.android.internal.R.styleable.TextView_textSize: 663 textSize = a.getDimensionPixelSize(attr, textSize); 664 break; 665 666 case com.android.internal.R.styleable.TextView_typeface: 667 typefaceIndex = a.getInt(attr, typefaceIndex); 668 break; 669 670 case com.android.internal.R.styleable.TextView_textStyle: 671 styleIndex = a.getInt(attr, styleIndex); 672 break; 673 674 case com.android.internal.R.styleable.TextView_password: 675 password = a.getBoolean(attr, password); 676 break; 677 678 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 679 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 680 break; 681 682 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 683 mSpacingMult = a.getFloat(attr, mSpacingMult); 684 break; 685 686 case com.android.internal.R.styleable.TextView_inputType: 687 inputType = a.getInt(attr, mInputType); 688 break; 689 690 case com.android.internal.R.styleable.TextView_imeOptions: 691 if (mInputContentType == null) { 692 mInputContentType = new InputContentType(); 693 } 694 mInputContentType.imeOptions = a.getInt(attr, 695 mInputContentType.imeOptions); 696 break; 697 698 case com.android.internal.R.styleable.TextView_imeActionLabel: 699 if (mInputContentType == null) { 700 mInputContentType = new InputContentType(); 701 } 702 mInputContentType.imeActionLabel = a.getText(attr); 703 break; 704 705 case com.android.internal.R.styleable.TextView_imeActionId: 706 if (mInputContentType == null) { 707 mInputContentType = new InputContentType(); 708 } 709 mInputContentType.imeActionId = a.getInt(attr, 710 mInputContentType.imeActionId); 711 break; 712 713 case com.android.internal.R.styleable.TextView_privateImeOptions: 714 setPrivateImeOptions(a.getString(attr)); 715 break; 716 717 case com.android.internal.R.styleable.TextView_editorExtras: 718 try { 719 setInputExtras(a.getResourceId(attr, 0)); 720 } catch (XmlPullParserException e) { 721 Log.w(LOG_TAG, "Failure reading input extras", e); 722 } catch (IOException e) { 723 Log.w(LOG_TAG, "Failure reading input extras", e); 724 } 725 break; 726 727 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 728 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 729 break; 730 731 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 732 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 733 break; 734 735 case com.android.internal.R.styleable.TextView_textSelectHandle: 736 mTextSelectHandleRes = a.getResourceId(attr, 0); 737 break; 738 } 739 } 740 a.recycle(); 741 742 BufferType bufferType = BufferType.EDITABLE; 743 744 if ((inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 745 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 746 password = true; 747 } 748 749 if (inputMethod != null) { 750 Class<?> c; 751 752 try { 753 c = Class.forName(inputMethod.toString()); 754 } catch (ClassNotFoundException ex) { 755 throw new RuntimeException(ex); 756 } 757 758 try { 759 mInput = (KeyListener) c.newInstance(); 760 } catch (InstantiationException ex) { 761 throw new RuntimeException(ex); 762 } catch (IllegalAccessException ex) { 763 throw new RuntimeException(ex); 764 } 765 try { 766 mInputType = inputType != EditorInfo.TYPE_NULL 767 ? inputType 768 : mInput.getInputType(); 769 } catch (IncompatibleClassChangeError e) { 770 mInputType = EditorInfo.TYPE_CLASS_TEXT; 771 } 772 } else if (digits != null) { 773 mInput = DigitsKeyListener.getInstance(digits.toString()); 774 // If no input type was specified, we will default to generic 775 // text, since we can't tell the IME about the set of digits 776 // that was selected. 777 mInputType = inputType != EditorInfo.TYPE_NULL 778 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 779 } else if (inputType != EditorInfo.TYPE_NULL) { 780 setInputType(inputType, true); 781 singleLine = (inputType&(EditorInfo.TYPE_MASK_CLASS 782 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) != 783 (EditorInfo.TYPE_CLASS_TEXT 784 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 785 } else if (phone) { 786 mInput = DialerKeyListener.getInstance(); 787 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 788 } else if (numeric != 0) { 789 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 790 (numeric & DECIMAL) != 0); 791 inputType = EditorInfo.TYPE_CLASS_NUMBER; 792 if ((numeric & SIGNED) != 0) { 793 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 794 } 795 if ((numeric & DECIMAL) != 0) { 796 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 797 } 798 mInputType = inputType; 799 } else if (autotext || autocap != -1) { 800 TextKeyListener.Capitalize cap; 801 802 inputType = EditorInfo.TYPE_CLASS_TEXT; 803 if (!singleLine) { 804 inputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 805 } 806 807 switch (autocap) { 808 case 1: 809 cap = TextKeyListener.Capitalize.SENTENCES; 810 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 811 break; 812 813 case 2: 814 cap = TextKeyListener.Capitalize.WORDS; 815 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 816 break; 817 818 case 3: 819 cap = TextKeyListener.Capitalize.CHARACTERS; 820 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 821 break; 822 823 default: 824 cap = TextKeyListener.Capitalize.NONE; 825 break; 826 } 827 828 mInput = TextKeyListener.getInstance(autotext, cap); 829 mInputType = inputType; 830 } else if (editable) { 831 mInput = TextKeyListener.getInstance(); 832 mInputType = EditorInfo.TYPE_CLASS_TEXT; 833 if (!singleLine) { 834 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 835 } 836 } else { 837 mInput = null; 838 839 switch (buffertype) { 840 case 0: 841 bufferType = BufferType.NORMAL; 842 break; 843 case 1: 844 bufferType = BufferType.SPANNABLE; 845 break; 846 case 2: 847 bufferType = BufferType.EDITABLE; 848 break; 849 } 850 } 851 852 if (password && (mInputType&EditorInfo.TYPE_MASK_CLASS) 853 == EditorInfo.TYPE_CLASS_TEXT) { 854 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 855 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 856 } 857 858 if (selectallonfocus) { 859 mSelectAllOnFocus = true; 860 861 if (bufferType == BufferType.NORMAL) 862 bufferType = BufferType.SPANNABLE; 863 } 864 865 setCompoundDrawablesWithIntrinsicBounds( 866 drawableLeft, drawableTop, drawableRight, drawableBottom); 867 setCompoundDrawablePadding(drawablePadding); 868 869 if (singleLine) { 870 setSingleLine(); 871 872 if (mInput == null && ellipsize < 0) { 873 ellipsize = 3; // END 874 } 875 } 876 877 switch (ellipsize) { 878 case 1: 879 setEllipsize(TextUtils.TruncateAt.START); 880 break; 881 case 2: 882 setEllipsize(TextUtils.TruncateAt.MIDDLE); 883 break; 884 case 3: 885 setEllipsize(TextUtils.TruncateAt.END); 886 break; 887 case 4: 888 setHorizontalFadingEdgeEnabled(true); 889 setEllipsize(TextUtils.TruncateAt.MARQUEE); 890 break; 891 } 892 893 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 894 setHintTextColor(textColorHint); 895 setLinkTextColor(textColorLink); 896 if (textColorHighlight != 0) { 897 setHighlightColor(textColorHighlight); 898 } 899 setRawTextSize(textSize); 900 901 if (password) { 902 setTransformationMethod(PasswordTransformationMethod.getInstance()); 903 typefaceIndex = MONOSPACE; 904 } else if ((mInputType&(EditorInfo.TYPE_MASK_CLASS 905 |EditorInfo.TYPE_MASK_VARIATION)) 906 == (EditorInfo.TYPE_CLASS_TEXT 907 |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 908 typefaceIndex = MONOSPACE; 909 } 910 911 setTypefaceByIndex(typefaceIndex, styleIndex); 912 913 if (shadowcolor != 0) { 914 setShadowLayer(r, dx, dy, shadowcolor); 915 } 916 917 if (maxlength >= 0) { 918 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 919 } else { 920 setFilters(NO_FILTERS); 921 } 922 923 setText(text, bufferType); 924 if (hint != null) setHint(hint); 925 926 /* 927 * Views are not normally focusable unless specified to be. 928 * However, TextViews that have input or movement methods *are* 929 * focusable by default. 930 */ 931 a = context.obtainStyledAttributes(attrs, 932 com.android.internal.R.styleable.View, 933 defStyle, 0); 934 935 boolean focusable = mMovement != null || mInput != null; 936 boolean clickable = focusable; 937 boolean longClickable = focusable; 938 939 n = a.getIndexCount(); 940 for (int i = 0; i < n; i++) { 941 int attr = a.getIndex(i); 942 943 switch (attr) { 944 case com.android.internal.R.styleable.View_focusable: 945 focusable = a.getBoolean(attr, focusable); 946 break; 947 948 case com.android.internal.R.styleable.View_clickable: 949 clickable = a.getBoolean(attr, clickable); 950 break; 951 952 case com.android.internal.R.styleable.View_longClickable: 953 longClickable = a.getBoolean(attr, longClickable); 954 break; 955 } 956 } 957 a.recycle(); 958 959 setFocusable(focusable); 960 setClickable(clickable); 961 setLongClickable(longClickable); 962 963 prepareCursorControllers(); 964 } 965 966 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 967 Typeface tf = null; 968 switch (typefaceIndex) { 969 case SANS: 970 tf = Typeface.SANS_SERIF; 971 break; 972 973 case SERIF: 974 tf = Typeface.SERIF; 975 break; 976 977 case MONOSPACE: 978 tf = Typeface.MONOSPACE; 979 break; 980 } 981 982 setTypeface(tf, styleIndex); 983 } 984 985 /** 986 * Sets the typeface and style in which the text should be displayed, 987 * and turns on the fake bold and italic bits in the Paint if the 988 * Typeface that you provided does not have all the bits in the 989 * style that you specified. 990 * 991 * @attr ref android.R.styleable#TextView_typeface 992 * @attr ref android.R.styleable#TextView_textStyle 993 */ 994 public void setTypeface(Typeface tf, int style) { 995 if (style > 0) { 996 if (tf == null) { 997 tf = Typeface.defaultFromStyle(style); 998 } else { 999 tf = Typeface.create(tf, style); 1000 } 1001 1002 setTypeface(tf); 1003 // now compute what (if any) algorithmic styling is needed 1004 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1005 int need = style & ~typefaceStyle; 1006 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1007 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1008 } else { 1009 mTextPaint.setFakeBoldText(false); 1010 mTextPaint.setTextSkewX(0); 1011 setTypeface(tf); 1012 } 1013 } 1014 1015 /** 1016 * Subclasses override this to specify that they have a KeyListener 1017 * by default even if not specifically called for in the XML options. 1018 */ 1019 protected boolean getDefaultEditable() { 1020 return false; 1021 } 1022 1023 /** 1024 * Subclasses override this to specify a default movement method. 1025 */ 1026 protected MovementMethod getDefaultMovementMethod() { 1027 return null; 1028 } 1029 1030 /** 1031 * Return the text the TextView is displaying. If setText() was called with 1032 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1033 * the return value from this method to Spannable or Editable, respectively. 1034 * 1035 * Note: The content of the return value should not be modified. If you want 1036 * a modifiable one, you should make your own copy first. 1037 */ 1038 @ViewDebug.CapturedViewProperty 1039 public CharSequence getText() { 1040 return mText; 1041 } 1042 1043 /** 1044 * Returns the length, in characters, of the text managed by this TextView 1045 */ 1046 public int length() { 1047 return mText.length(); 1048 } 1049 1050 /** 1051 * Return the text the TextView is displaying as an Editable object. If 1052 * the text is not editable, null is returned. 1053 * 1054 * @see #getText 1055 */ 1056 public Editable getEditableText() { 1057 return (mText instanceof Editable) ? (Editable)mText : null; 1058 } 1059 1060 /** 1061 * @return the height of one standard line in pixels. Note that markup 1062 * within the text can cause individual lines to be taller or shorter 1063 * than this height, and the layout may contain additional first- 1064 * or last-line padding. 1065 */ 1066 public int getLineHeight() { 1067 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult 1068 + mSpacingAdd); 1069 } 1070 1071 /** 1072 * @return the Layout that is currently being used to display the text. 1073 * This can be null if the text or width has recently changes. 1074 */ 1075 public final Layout getLayout() { 1076 return mLayout; 1077 } 1078 1079 /** 1080 * @return the current key listener for this TextView. 1081 * This will frequently be null for non-EditText TextViews. 1082 */ 1083 public final KeyListener getKeyListener() { 1084 return mInput; 1085 } 1086 1087 /** 1088 * Sets the key listener to be used with this TextView. This can be null 1089 * to disallow user input. Note that this method has significant and 1090 * subtle interactions with soft keyboards and other input method: 1091 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1092 * for important details. Calling this method will replace the current 1093 * content type of the text view with the content type returned by the 1094 * key listener. 1095 * <p> 1096 * Be warned that if you want a TextView with a key listener or movement 1097 * method not to be focusable, or if you want a TextView without a 1098 * key listener or movement method to be focusable, you must call 1099 * {@link #setFocusable} again after calling this to get the focusability 1100 * back the way you want it. 1101 * 1102 * @attr ref android.R.styleable#TextView_numeric 1103 * @attr ref android.R.styleable#TextView_digits 1104 * @attr ref android.R.styleable#TextView_phoneNumber 1105 * @attr ref android.R.styleable#TextView_inputMethod 1106 * @attr ref android.R.styleable#TextView_capitalize 1107 * @attr ref android.R.styleable#TextView_autoText 1108 */ 1109 public void setKeyListener(KeyListener input) { 1110 setKeyListenerOnly(input); 1111 fixFocusableAndClickableSettings(); 1112 1113 if (input != null) { 1114 try { 1115 mInputType = mInput.getInputType(); 1116 } catch (IncompatibleClassChangeError e) { 1117 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1118 } 1119 if ((mInputType&EditorInfo.TYPE_MASK_CLASS) 1120 == EditorInfo.TYPE_CLASS_TEXT) { 1121 if (mSingleLine) { 1122 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 1123 } else { 1124 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 1125 } 1126 } 1127 } else { 1128 mInputType = EditorInfo.TYPE_NULL; 1129 } 1130 1131 InputMethodManager imm = InputMethodManager.peekInstance(); 1132 if (imm != null) imm.restartInput(this); 1133 } 1134 1135 private void setKeyListenerOnly(KeyListener input) { 1136 mInput = input; 1137 if (mInput != null && !(mText instanceof Editable)) 1138 setText(mText); 1139 1140 setFilters((Editable) mText, mFilters); 1141 } 1142 1143 /** 1144 * @return the movement method being used for this TextView. 1145 * This will frequently be null for non-EditText TextViews. 1146 */ 1147 public final MovementMethod getMovementMethod() { 1148 return mMovement; 1149 } 1150 1151 /** 1152 * Sets the movement method (arrow key handler) to be used for 1153 * this TextView. This can be null to disallow using the arrow keys 1154 * to move the cursor or scroll the view. 1155 * <p> 1156 * Be warned that if you want a TextView with a key listener or movement 1157 * method not to be focusable, or if you want a TextView without a 1158 * key listener or movement method to be focusable, you must call 1159 * {@link #setFocusable} again after calling this to get the focusability 1160 * back the way you want it. 1161 */ 1162 public final void setMovementMethod(MovementMethod movement) { 1163 mMovement = movement; 1164 1165 if (mMovement != null && !(mText instanceof Spannable)) 1166 setText(mText); 1167 1168 fixFocusableAndClickableSettings(); 1169 1170 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1171 prepareCursorControllers(); 1172 } 1173 1174 private void fixFocusableAndClickableSettings() { 1175 if ((mMovement != null) || mInput != null) { 1176 setFocusable(true); 1177 setClickable(true); 1178 setLongClickable(true); 1179 } else { 1180 setFocusable(false); 1181 setClickable(false); 1182 setLongClickable(false); 1183 } 1184 } 1185 1186 /** 1187 * @return the current transformation method for this TextView. 1188 * This will frequently be null except for single-line and password 1189 * fields. 1190 */ 1191 public final TransformationMethod getTransformationMethod() { 1192 return mTransformation; 1193 } 1194 1195 /** 1196 * Sets the transformation that is applied to the text that this 1197 * TextView is displaying. 1198 * 1199 * @attr ref android.R.styleable#TextView_password 1200 * @attr ref android.R.styleable#TextView_singleLine 1201 */ 1202 public final void setTransformationMethod(TransformationMethod method) { 1203 if (method == mTransformation) { 1204 // Avoid the setText() below if the transformation is 1205 // the same. 1206 return; 1207 } 1208 if (mTransformation != null) { 1209 if (mText instanceof Spannable) { 1210 ((Spannable) mText).removeSpan(mTransformation); 1211 } 1212 } 1213 1214 mTransformation = method; 1215 1216 setText(mText); 1217 } 1218 1219 /** 1220 * Returns the top padding of the view, plus space for the top 1221 * Drawable if any. 1222 */ 1223 public int getCompoundPaddingTop() { 1224 final Drawables dr = mDrawables; 1225 if (dr == null || dr.mDrawableTop == null) { 1226 return mPaddingTop; 1227 } else { 1228 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1229 } 1230 } 1231 1232 /** 1233 * Returns the bottom padding of the view, plus space for the bottom 1234 * Drawable if any. 1235 */ 1236 public int getCompoundPaddingBottom() { 1237 final Drawables dr = mDrawables; 1238 if (dr == null || dr.mDrawableBottom == null) { 1239 return mPaddingBottom; 1240 } else { 1241 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1242 } 1243 } 1244 1245 /** 1246 * Returns the left padding of the view, plus space for the left 1247 * Drawable if any. 1248 */ 1249 public int getCompoundPaddingLeft() { 1250 final Drawables dr = mDrawables; 1251 if (dr == null || dr.mDrawableLeft == null) { 1252 return mPaddingLeft; 1253 } else { 1254 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1255 } 1256 } 1257 1258 /** 1259 * Returns the right padding of the view, plus space for the right 1260 * Drawable if any. 1261 */ 1262 public int getCompoundPaddingRight() { 1263 final Drawables dr = mDrawables; 1264 if (dr == null || dr.mDrawableRight == null) { 1265 return mPaddingRight; 1266 } else { 1267 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1268 } 1269 } 1270 1271 /** 1272 * Returns the extended top padding of the view, including both the 1273 * top Drawable if any and any extra space to keep more than maxLines 1274 * of text from showing. It is only valid to call this after measuring. 1275 */ 1276 public int getExtendedPaddingTop() { 1277 if (mMaxMode != LINES) { 1278 return getCompoundPaddingTop(); 1279 } 1280 1281 if (mLayout.getLineCount() <= mMaximum) { 1282 return getCompoundPaddingTop(); 1283 } 1284 1285 int top = getCompoundPaddingTop(); 1286 int bottom = getCompoundPaddingBottom(); 1287 int viewht = getHeight() - top - bottom; 1288 int layoutht = mLayout.getLineTop(mMaximum); 1289 1290 if (layoutht >= viewht) { 1291 return top; 1292 } 1293 1294 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1295 if (gravity == Gravity.TOP) { 1296 return top; 1297 } else if (gravity == Gravity.BOTTOM) { 1298 return top + viewht - layoutht; 1299 } else { // (gravity == Gravity.CENTER_VERTICAL) 1300 return top + (viewht - layoutht) / 2; 1301 } 1302 } 1303 1304 /** 1305 * Returns the extended bottom padding of the view, including both the 1306 * bottom Drawable if any and any extra space to keep more than maxLines 1307 * of text from showing. It is only valid to call this after measuring. 1308 */ 1309 public int getExtendedPaddingBottom() { 1310 if (mMaxMode != LINES) { 1311 return getCompoundPaddingBottom(); 1312 } 1313 1314 if (mLayout.getLineCount() <= mMaximum) { 1315 return getCompoundPaddingBottom(); 1316 } 1317 1318 int top = getCompoundPaddingTop(); 1319 int bottom = getCompoundPaddingBottom(); 1320 int viewht = getHeight() - top - bottom; 1321 int layoutht = mLayout.getLineTop(mMaximum); 1322 1323 if (layoutht >= viewht) { 1324 return bottom; 1325 } 1326 1327 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1328 if (gravity == Gravity.TOP) { 1329 return bottom + viewht - layoutht; 1330 } else if (gravity == Gravity.BOTTOM) { 1331 return bottom; 1332 } else { // (gravity == Gravity.CENTER_VERTICAL) 1333 return bottom + (viewht - layoutht) / 2; 1334 } 1335 } 1336 1337 /** 1338 * Returns the total left padding of the view, including the left 1339 * Drawable if any. 1340 */ 1341 public int getTotalPaddingLeft() { 1342 return getCompoundPaddingLeft(); 1343 } 1344 1345 /** 1346 * Returns the total right padding of the view, including the right 1347 * Drawable if any. 1348 */ 1349 public int getTotalPaddingRight() { 1350 return getCompoundPaddingRight(); 1351 } 1352 1353 /** 1354 * Returns the total top padding of the view, including the top 1355 * Drawable if any, the extra space to keep more than maxLines 1356 * from showing, and the vertical offset for gravity, if any. 1357 */ 1358 public int getTotalPaddingTop() { 1359 return getExtendedPaddingTop() + getVerticalOffset(true); 1360 } 1361 1362 /** 1363 * Returns the total bottom padding of the view, including the bottom 1364 * Drawable if any, the extra space to keep more than maxLines 1365 * from showing, and the vertical offset for gravity, if any. 1366 */ 1367 public int getTotalPaddingBottom() { 1368 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1369 } 1370 1371 /** 1372 * Sets the Drawables (if any) to appear to the left of, above, 1373 * to the right of, and below the text. Use null if you do not 1374 * want a Drawable there. The Drawables must already have had 1375 * {@link Drawable#setBounds} called. 1376 * 1377 * @attr ref android.R.styleable#TextView_drawableLeft 1378 * @attr ref android.R.styleable#TextView_drawableTop 1379 * @attr ref android.R.styleable#TextView_drawableRight 1380 * @attr ref android.R.styleable#TextView_drawableBottom 1381 */ 1382 public void setCompoundDrawables(Drawable left, Drawable top, 1383 Drawable right, Drawable bottom) { 1384 Drawables dr = mDrawables; 1385 1386 final boolean drawables = left != null || top != null 1387 || right != null || bottom != null; 1388 1389 if (!drawables) { 1390 // Clearing drawables... can we free the data structure? 1391 if (dr != null) { 1392 if (dr.mDrawablePadding == 0) { 1393 mDrawables = null; 1394 } else { 1395 // We need to retain the last set padding, so just clear 1396 // out all of the fields in the existing structure. 1397 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1398 dr.mDrawableLeft = null; 1399 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1400 dr.mDrawableTop = null; 1401 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1402 dr.mDrawableRight = null; 1403 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1404 dr.mDrawableBottom = null; 1405 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1406 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1407 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1408 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1409 } 1410 } 1411 } else { 1412 if (dr == null) { 1413 mDrawables = dr = new Drawables(); 1414 } 1415 1416 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1417 dr.mDrawableLeft.setCallback(null); 1418 } 1419 dr.mDrawableLeft = left; 1420 1421 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1422 dr.mDrawableTop.setCallback(null); 1423 } 1424 dr.mDrawableTop = top; 1425 1426 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1427 dr.mDrawableRight.setCallback(null); 1428 } 1429 dr.mDrawableRight = right; 1430 1431 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1432 dr.mDrawableBottom.setCallback(null); 1433 } 1434 dr.mDrawableBottom = bottom; 1435 1436 final Rect compoundRect = dr.mCompoundRect; 1437 int[] state; 1438 1439 state = getDrawableState(); 1440 1441 if (left != null) { 1442 left.setState(state); 1443 left.copyBounds(compoundRect); 1444 left.setCallback(this); 1445 dr.mDrawableSizeLeft = compoundRect.width(); 1446 dr.mDrawableHeightLeft = compoundRect.height(); 1447 } else { 1448 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1449 } 1450 1451 if (right != null) { 1452 right.setState(state); 1453 right.copyBounds(compoundRect); 1454 right.setCallback(this); 1455 dr.mDrawableSizeRight = compoundRect.width(); 1456 dr.mDrawableHeightRight = compoundRect.height(); 1457 } else { 1458 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1459 } 1460 1461 if (top != null) { 1462 top.setState(state); 1463 top.copyBounds(compoundRect); 1464 top.setCallback(this); 1465 dr.mDrawableSizeTop = compoundRect.height(); 1466 dr.mDrawableWidthTop = compoundRect.width(); 1467 } else { 1468 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1469 } 1470 1471 if (bottom != null) { 1472 bottom.setState(state); 1473 bottom.copyBounds(compoundRect); 1474 bottom.setCallback(this); 1475 dr.mDrawableSizeBottom = compoundRect.height(); 1476 dr.mDrawableWidthBottom = compoundRect.width(); 1477 } else { 1478 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1479 } 1480 } 1481 1482 invalidate(); 1483 requestLayout(); 1484 } 1485 1486 /** 1487 * Sets the Drawables (if any) to appear to the left of, above, 1488 * to the right of, and below the text. Use 0 if you do not 1489 * want a Drawable there. The Drawables' bounds will be set to 1490 * their intrinsic bounds. 1491 * 1492 * @param left Resource identifier of the left Drawable. 1493 * @param top Resource identifier of the top Drawable. 1494 * @param right Resource identifier of the right Drawable. 1495 * @param bottom Resource identifier of the bottom Drawable. 1496 * 1497 * @attr ref android.R.styleable#TextView_drawableLeft 1498 * @attr ref android.R.styleable#TextView_drawableTop 1499 * @attr ref android.R.styleable#TextView_drawableRight 1500 * @attr ref android.R.styleable#TextView_drawableBottom 1501 */ 1502 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1503 final Resources resources = getContext().getResources(); 1504 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1505 top != 0 ? resources.getDrawable(top) : null, 1506 right != 0 ? resources.getDrawable(right) : null, 1507 bottom != 0 ? resources.getDrawable(bottom) : null); 1508 } 1509 1510 /** 1511 * Sets the Drawables (if any) to appear to the left of, above, 1512 * to the right of, and below the text. Use null if you do not 1513 * want a Drawable there. The Drawables' bounds will be set to 1514 * their intrinsic bounds. 1515 * 1516 * @attr ref android.R.styleable#TextView_drawableLeft 1517 * @attr ref android.R.styleable#TextView_drawableTop 1518 * @attr ref android.R.styleable#TextView_drawableRight 1519 * @attr ref android.R.styleable#TextView_drawableBottom 1520 */ 1521 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1522 Drawable right, Drawable bottom) { 1523 1524 if (left != null) { 1525 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1526 } 1527 if (right != null) { 1528 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1529 } 1530 if (top != null) { 1531 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1532 } 1533 if (bottom != null) { 1534 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1535 } 1536 setCompoundDrawables(left, top, right, bottom); 1537 } 1538 1539 /** 1540 * Returns drawables for the left, top, right, and bottom borders. 1541 */ 1542 public Drawable[] getCompoundDrawables() { 1543 final Drawables dr = mDrawables; 1544 if (dr != null) { 1545 return new Drawable[] { 1546 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1547 }; 1548 } else { 1549 return new Drawable[] { null, null, null, null }; 1550 } 1551 } 1552 1553 /** 1554 * Sets the size of the padding between the compound drawables and 1555 * the text. 1556 * 1557 * @attr ref android.R.styleable#TextView_drawablePadding 1558 */ 1559 public void setCompoundDrawablePadding(int pad) { 1560 Drawables dr = mDrawables; 1561 if (pad == 0) { 1562 if (dr != null) { 1563 dr.mDrawablePadding = pad; 1564 } 1565 } else { 1566 if (dr == null) { 1567 mDrawables = dr = new Drawables(); 1568 } 1569 dr.mDrawablePadding = pad; 1570 } 1571 1572 invalidate(); 1573 requestLayout(); 1574 } 1575 1576 /** 1577 * Returns the padding between the compound drawables and the text. 1578 */ 1579 public int getCompoundDrawablePadding() { 1580 final Drawables dr = mDrawables; 1581 return dr != null ? dr.mDrawablePadding : 0; 1582 } 1583 1584 @Override 1585 public void setPadding(int left, int top, int right, int bottom) { 1586 if (left != mPaddingLeft || 1587 right != mPaddingRight || 1588 top != mPaddingTop || 1589 bottom != mPaddingBottom) { 1590 nullLayouts(); 1591 } 1592 1593 // the super call will requestLayout() 1594 super.setPadding(left, top, right, bottom); 1595 invalidate(); 1596 } 1597 1598 /** 1599 * Gets the autolink mask of the text. See {@link 1600 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1601 * possible values. 1602 * 1603 * @attr ref android.R.styleable#TextView_autoLink 1604 */ 1605 public final int getAutoLinkMask() { 1606 return mAutoLinkMask; 1607 } 1608 1609 /** 1610 * Sets the text color, size, style, hint color, and highlight color 1611 * from the specified TextAppearance resource. 1612 */ 1613 public void setTextAppearance(Context context, int resid) { 1614 TypedArray appearance = 1615 context.obtainStyledAttributes(resid, 1616 com.android.internal.R.styleable.TextAppearance); 1617 1618 int color; 1619 ColorStateList colors; 1620 int ts; 1621 1622 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1623 if (color != 0) { 1624 setHighlightColor(color); 1625 } 1626 1627 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1628 TextAppearance_textColor); 1629 if (colors != null) { 1630 setTextColor(colors); 1631 } 1632 1633 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1634 TextAppearance_textSize, 0); 1635 if (ts != 0) { 1636 setRawTextSize(ts); 1637 } 1638 1639 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1640 TextAppearance_textColorHint); 1641 if (colors != null) { 1642 setHintTextColor(colors); 1643 } 1644 1645 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1646 TextAppearance_textColorLink); 1647 if (colors != null) { 1648 setLinkTextColor(colors); 1649 } 1650 1651 int typefaceIndex, styleIndex; 1652 1653 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1654 TextAppearance_typeface, -1); 1655 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1656 TextAppearance_textStyle, -1); 1657 1658 setTypefaceByIndex(typefaceIndex, styleIndex); 1659 appearance.recycle(); 1660 } 1661 1662 /** 1663 * @return the size (in pixels) of the default text size in this TextView. 1664 */ 1665 public float getTextSize() { 1666 return mTextPaint.getTextSize(); 1667 } 1668 1669 /** 1670 * Set the default text size to the given value, interpreted as "scaled 1671 * pixel" units. This size is adjusted based on the current density and 1672 * user font size preference. 1673 * 1674 * @param size The scaled pixel size. 1675 * 1676 * @attr ref android.R.styleable#TextView_textSize 1677 */ 1678 @android.view.RemotableViewMethod 1679 public void setTextSize(float size) { 1680 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1681 } 1682 1683 /** 1684 * Set the default text size to a given unit and value. See {@link 1685 * TypedValue} for the possible dimension units. 1686 * 1687 * @param unit The desired dimension unit. 1688 * @param size The desired size in the given units. 1689 * 1690 * @attr ref android.R.styleable#TextView_textSize 1691 */ 1692 public void setTextSize(int unit, float size) { 1693 Context c = getContext(); 1694 Resources r; 1695 1696 if (c == null) 1697 r = Resources.getSystem(); 1698 else 1699 r = c.getResources(); 1700 1701 setRawTextSize(TypedValue.applyDimension( 1702 unit, size, r.getDisplayMetrics())); 1703 } 1704 1705 private void setRawTextSize(float size) { 1706 if (size != mTextPaint.getTextSize()) { 1707 mTextPaint.setTextSize(size); 1708 1709 if (mLayout != null) { 1710 nullLayouts(); 1711 requestLayout(); 1712 invalidate(); 1713 } 1714 } 1715 } 1716 1717 /** 1718 * @return the extent by which text is currently being stretched 1719 * horizontally. This will usually be 1. 1720 */ 1721 public float getTextScaleX() { 1722 return mTextPaint.getTextScaleX(); 1723 } 1724 1725 /** 1726 * Sets the extent by which text should be stretched horizontally. 1727 * 1728 * @attr ref android.R.styleable#TextView_textScaleX 1729 */ 1730 @android.view.RemotableViewMethod 1731 public void setTextScaleX(float size) { 1732 if (size != mTextPaint.getTextScaleX()) { 1733 mUserSetTextScaleX = true; 1734 mTextPaint.setTextScaleX(size); 1735 1736 if (mLayout != null) { 1737 nullLayouts(); 1738 requestLayout(); 1739 invalidate(); 1740 } 1741 } 1742 } 1743 1744 /** 1745 * Sets the typeface and style in which the text should be displayed. 1746 * Note that not all Typeface families actually have bold and italic 1747 * variants, so you may need to use 1748 * {@link #setTypeface(Typeface, int)} to get the appearance 1749 * that you actually want. 1750 * 1751 * @attr ref android.R.styleable#TextView_typeface 1752 * @attr ref android.R.styleable#TextView_textStyle 1753 */ 1754 public void setTypeface(Typeface tf) { 1755 if (mTextPaint.getTypeface() != tf) { 1756 mTextPaint.setTypeface(tf); 1757 1758 if (mLayout != null) { 1759 nullLayouts(); 1760 requestLayout(); 1761 invalidate(); 1762 } 1763 } 1764 } 1765 1766 /** 1767 * @return the current typeface and style in which the text is being 1768 * displayed. 1769 */ 1770 public Typeface getTypeface() { 1771 return mTextPaint.getTypeface(); 1772 } 1773 1774 /** 1775 * Sets the text color for all the states (normal, selected, 1776 * focused) to be this color. 1777 * 1778 * @attr ref android.R.styleable#TextView_textColor 1779 */ 1780 @android.view.RemotableViewMethod 1781 public void setTextColor(int color) { 1782 mTextColor = ColorStateList.valueOf(color); 1783 updateTextColors(); 1784 } 1785 1786 /** 1787 * Sets the text color. 1788 * 1789 * @attr ref android.R.styleable#TextView_textColor 1790 */ 1791 public void setTextColor(ColorStateList colors) { 1792 if (colors == null) { 1793 throw new NullPointerException(); 1794 } 1795 1796 mTextColor = colors; 1797 updateTextColors(); 1798 } 1799 1800 /** 1801 * Return the set of text colors. 1802 * 1803 * @return Returns the set of text colors. 1804 */ 1805 public final ColorStateList getTextColors() { 1806 return mTextColor; 1807 } 1808 1809 /** 1810 * <p>Return the current color selected for normal text.</p> 1811 * 1812 * @return Returns the current text color. 1813 */ 1814 public final int getCurrentTextColor() { 1815 return mCurTextColor; 1816 } 1817 1818 /** 1819 * Sets the color used to display the selection highlight. 1820 * 1821 * @attr ref android.R.styleable#TextView_textColorHighlight 1822 */ 1823 @android.view.RemotableViewMethod 1824 public void setHighlightColor(int color) { 1825 if (mHighlightColor != color) { 1826 mHighlightColor = color; 1827 invalidate(); 1828 } 1829 } 1830 1831 /** 1832 * Gives the text a shadow of the specified radius and color, the specified 1833 * distance from its normal position. 1834 * 1835 * @attr ref android.R.styleable#TextView_shadowColor 1836 * @attr ref android.R.styleable#TextView_shadowDx 1837 * @attr ref android.R.styleable#TextView_shadowDy 1838 * @attr ref android.R.styleable#TextView_shadowRadius 1839 */ 1840 public void setShadowLayer(float radius, float dx, float dy, int color) { 1841 mTextPaint.setShadowLayer(radius, dx, dy, color); 1842 1843 mShadowRadius = radius; 1844 mShadowDx = dx; 1845 mShadowDy = dy; 1846 1847 invalidate(); 1848 } 1849 1850 /** 1851 * @return the base paint used for the text. Please use this only to 1852 * consult the Paint's properties and not to change them. 1853 */ 1854 public TextPaint getPaint() { 1855 return mTextPaint; 1856 } 1857 1858 /** 1859 * Sets the autolink mask of the text. See {@link 1860 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1861 * possible values. 1862 * 1863 * @attr ref android.R.styleable#TextView_autoLink 1864 */ 1865 @android.view.RemotableViewMethod 1866 public final void setAutoLinkMask(int mask) { 1867 mAutoLinkMask = mask; 1868 } 1869 1870 /** 1871 * Sets whether the movement method will automatically be set to 1872 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1873 * set to nonzero and links are detected in {@link #setText}. 1874 * The default is true. 1875 * 1876 * @attr ref android.R.styleable#TextView_linksClickable 1877 */ 1878 @android.view.RemotableViewMethod 1879 public final void setLinksClickable(boolean whether) { 1880 mLinksClickable = whether; 1881 } 1882 1883 /** 1884 * Returns whether the movement method will automatically be set to 1885 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1886 * set to nonzero and links are detected in {@link #setText}. 1887 * The default is true. 1888 * 1889 * @attr ref android.R.styleable#TextView_linksClickable 1890 */ 1891 public final boolean getLinksClickable() { 1892 return mLinksClickable; 1893 } 1894 1895 /** 1896 * Returns the list of URLSpans attached to the text 1897 * (by {@link Linkify} or otherwise) if any. You can call 1898 * {@link URLSpan#getURL} on them to find where they link to 1899 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 1900 * to find the region of the text they are attached to. 1901 */ 1902 public URLSpan[] getUrls() { 1903 if (mText instanceof Spanned) { 1904 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 1905 } else { 1906 return new URLSpan[0]; 1907 } 1908 } 1909 1910 /** 1911 * Sets the color of the hint text. 1912 * 1913 * @attr ref android.R.styleable#TextView_textColorHint 1914 */ 1915 @android.view.RemotableViewMethod 1916 public final void setHintTextColor(int color) { 1917 mHintTextColor = ColorStateList.valueOf(color); 1918 updateTextColors(); 1919 } 1920 1921 /** 1922 * Sets the color of the hint text. 1923 * 1924 * @attr ref android.R.styleable#TextView_textColorHint 1925 */ 1926 public final void setHintTextColor(ColorStateList colors) { 1927 mHintTextColor = colors; 1928 updateTextColors(); 1929 } 1930 1931 /** 1932 * <p>Return the color used to paint the hint text.</p> 1933 * 1934 * @return Returns the list of hint text colors. 1935 */ 1936 public final ColorStateList getHintTextColors() { 1937 return mHintTextColor; 1938 } 1939 1940 /** 1941 * <p>Return the current color selected to paint the hint text.</p> 1942 * 1943 * @return Returns the current hint text color. 1944 */ 1945 public final int getCurrentHintTextColor() { 1946 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 1947 } 1948 1949 /** 1950 * Sets the color of links in the text. 1951 * 1952 * @attr ref android.R.styleable#TextView_textColorLink 1953 */ 1954 @android.view.RemotableViewMethod 1955 public final void setLinkTextColor(int color) { 1956 mLinkTextColor = ColorStateList.valueOf(color); 1957 updateTextColors(); 1958 } 1959 1960 /** 1961 * Sets the color of links in the text. 1962 * 1963 * @attr ref android.R.styleable#TextView_textColorLink 1964 */ 1965 public final void setLinkTextColor(ColorStateList colors) { 1966 mLinkTextColor = colors; 1967 updateTextColors(); 1968 } 1969 1970 /** 1971 * <p>Returns the color used to paint links in the text.</p> 1972 * 1973 * @return Returns the list of link text colors. 1974 */ 1975 public final ColorStateList getLinkTextColors() { 1976 return mLinkTextColor; 1977 } 1978 1979 /** 1980 * Sets the horizontal alignment of the text and the 1981 * vertical gravity that will be used when there is extra space 1982 * in the TextView beyond what is required for the text itself. 1983 * 1984 * @see android.view.Gravity 1985 * @attr ref android.R.styleable#TextView_gravity 1986 */ 1987 public void setGravity(int gravity) { 1988 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 1989 gravity |= Gravity.LEFT; 1990 } 1991 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 1992 gravity |= Gravity.TOP; 1993 } 1994 1995 boolean newLayout = false; 1996 1997 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 1998 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 1999 newLayout = true; 2000 } 2001 2002 if (gravity != mGravity) { 2003 invalidate(); 2004 } 2005 2006 mGravity = gravity; 2007 2008 if (mLayout != null && newLayout) { 2009 // XXX this is heavy-handed because no actual content changes. 2010 int want = mLayout.getWidth(); 2011 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2012 2013 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2014 mRight - mLeft - getCompoundPaddingLeft() - 2015 getCompoundPaddingRight(), true); 2016 } 2017 } 2018 2019 /** 2020 * Returns the horizontal and vertical alignment of this TextView. 2021 * 2022 * @see android.view.Gravity 2023 * @attr ref android.R.styleable#TextView_gravity 2024 */ 2025 public int getGravity() { 2026 return mGravity; 2027 } 2028 2029 /** 2030 * @return the flags on the Paint being used to display the text. 2031 * @see Paint#getFlags 2032 */ 2033 public int getPaintFlags() { 2034 return mTextPaint.getFlags(); 2035 } 2036 2037 /** 2038 * Sets flags on the Paint being used to display the text and 2039 * reflows the text if they are different from the old flags. 2040 * @see Paint#setFlags 2041 */ 2042 @android.view.RemotableViewMethod 2043 public void setPaintFlags(int flags) { 2044 if (mTextPaint.getFlags() != flags) { 2045 mTextPaint.setFlags(flags); 2046 2047 if (mLayout != null) { 2048 nullLayouts(); 2049 requestLayout(); 2050 invalidate(); 2051 } 2052 } 2053 } 2054 2055 /** 2056 * Sets whether the text should be allowed to be wider than the 2057 * View is. If false, it will be wrapped to the width of the View. 2058 * 2059 * @attr ref android.R.styleable#TextView_scrollHorizontally 2060 */ 2061 public void setHorizontallyScrolling(boolean whether) { 2062 mHorizontallyScrolling = whether; 2063 2064 if (mLayout != null) { 2065 nullLayouts(); 2066 requestLayout(); 2067 invalidate(); 2068 } 2069 } 2070 2071 /** 2072 * Makes the TextView at least this many lines tall 2073 * 2074 * @attr ref android.R.styleable#TextView_minLines 2075 */ 2076 @android.view.RemotableViewMethod 2077 public void setMinLines(int minlines) { 2078 mMinimum = minlines; 2079 mMinMode = LINES; 2080 2081 requestLayout(); 2082 invalidate(); 2083 } 2084 2085 /** 2086 * Makes the TextView at least this many pixels tall 2087 * 2088 * @attr ref android.R.styleable#TextView_minHeight 2089 */ 2090 @android.view.RemotableViewMethod 2091 public void setMinHeight(int minHeight) { 2092 mMinimum = minHeight; 2093 mMinMode = PIXELS; 2094 2095 requestLayout(); 2096 invalidate(); 2097 } 2098 2099 /** 2100 * Makes the TextView at most this many lines tall 2101 * 2102 * @attr ref android.R.styleable#TextView_maxLines 2103 */ 2104 @android.view.RemotableViewMethod 2105 public void setMaxLines(int maxlines) { 2106 mMaximum = maxlines; 2107 mMaxMode = LINES; 2108 2109 requestLayout(); 2110 invalidate(); 2111 } 2112 2113 /** 2114 * Makes the TextView at most this many pixels tall 2115 * 2116 * @attr ref android.R.styleable#TextView_maxHeight 2117 */ 2118 @android.view.RemotableViewMethod 2119 public void setMaxHeight(int maxHeight) { 2120 mMaximum = maxHeight; 2121 mMaxMode = PIXELS; 2122 2123 requestLayout(); 2124 invalidate(); 2125 } 2126 2127 /** 2128 * Makes the TextView exactly this many lines tall 2129 * 2130 * @attr ref android.R.styleable#TextView_lines 2131 */ 2132 @android.view.RemotableViewMethod 2133 public void setLines(int lines) { 2134 mMaximum = mMinimum = lines; 2135 mMaxMode = mMinMode = LINES; 2136 2137 requestLayout(); 2138 invalidate(); 2139 } 2140 2141 /** 2142 * Makes the TextView exactly this many pixels tall. 2143 * You could do the same thing by specifying this number in the 2144 * LayoutParams. 2145 * 2146 * @attr ref android.R.styleable#TextView_height 2147 */ 2148 @android.view.RemotableViewMethod 2149 public void setHeight(int pixels) { 2150 mMaximum = mMinimum = pixels; 2151 mMaxMode = mMinMode = PIXELS; 2152 2153 requestLayout(); 2154 invalidate(); 2155 } 2156 2157 /** 2158 * Makes the TextView at least this many ems wide 2159 * 2160 * @attr ref android.R.styleable#TextView_minEms 2161 */ 2162 @android.view.RemotableViewMethod 2163 public void setMinEms(int minems) { 2164 mMinWidth = minems; 2165 mMinWidthMode = EMS; 2166 2167 requestLayout(); 2168 invalidate(); 2169 } 2170 2171 /** 2172 * Makes the TextView at least this many pixels wide 2173 * 2174 * @attr ref android.R.styleable#TextView_minWidth 2175 */ 2176 @android.view.RemotableViewMethod 2177 public void setMinWidth(int minpixels) { 2178 mMinWidth = minpixels; 2179 mMinWidthMode = PIXELS; 2180 2181 requestLayout(); 2182 invalidate(); 2183 } 2184 2185 /** 2186 * Makes the TextView at most this many ems wide 2187 * 2188 * @attr ref android.R.styleable#TextView_maxEms 2189 */ 2190 @android.view.RemotableViewMethod 2191 public void setMaxEms(int maxems) { 2192 mMaxWidth = maxems; 2193 mMaxWidthMode = EMS; 2194 2195 requestLayout(); 2196 invalidate(); 2197 } 2198 2199 /** 2200 * Makes the TextView at most this many pixels wide 2201 * 2202 * @attr ref android.R.styleable#TextView_maxWidth 2203 */ 2204 @android.view.RemotableViewMethod 2205 public void setMaxWidth(int maxpixels) { 2206 mMaxWidth = maxpixels; 2207 mMaxWidthMode = PIXELS; 2208 2209 requestLayout(); 2210 invalidate(); 2211 } 2212 2213 /** 2214 * Makes the TextView exactly this many ems wide 2215 * 2216 * @attr ref android.R.styleable#TextView_ems 2217 */ 2218 @android.view.RemotableViewMethod 2219 public void setEms(int ems) { 2220 mMaxWidth = mMinWidth = ems; 2221 mMaxWidthMode = mMinWidthMode = EMS; 2222 2223 requestLayout(); 2224 invalidate(); 2225 } 2226 2227 /** 2228 * Makes the TextView exactly this many pixels wide. 2229 * You could do the same thing by specifying this number in the 2230 * LayoutParams. 2231 * 2232 * @attr ref android.R.styleable#TextView_width 2233 */ 2234 @android.view.RemotableViewMethod 2235 public void setWidth(int pixels) { 2236 mMaxWidth = mMinWidth = pixels; 2237 mMaxWidthMode = mMinWidthMode = PIXELS; 2238 2239 requestLayout(); 2240 invalidate(); 2241 } 2242 2243 2244 /** 2245 * Sets line spacing for this TextView. Each line will have its height 2246 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2247 * 2248 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2249 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2250 */ 2251 public void setLineSpacing(float add, float mult) { 2252 mSpacingMult = mult; 2253 mSpacingAdd = add; 2254 2255 if (mLayout != null) { 2256 nullLayouts(); 2257 requestLayout(); 2258 invalidate(); 2259 } 2260 } 2261 2262 /** 2263 * Convenience method: Append the specified text to the TextView's 2264 * display buffer, upgrading it to BufferType.EDITABLE if it was 2265 * not already editable. 2266 */ 2267 public final void append(CharSequence text) { 2268 append(text, 0, text.length()); 2269 } 2270 2271 /** 2272 * Convenience method: Append the specified text slice to the TextView's 2273 * display buffer, upgrading it to BufferType.EDITABLE if it was 2274 * not already editable. 2275 */ 2276 public void append(CharSequence text, int start, int end) { 2277 if (!(mText instanceof Editable)) { 2278 setText(mText, BufferType.EDITABLE); 2279 } 2280 2281 ((Editable) mText).append(text, start, end); 2282 } 2283 2284 private void updateTextColors() { 2285 boolean inval = false; 2286 int color = mTextColor.getColorForState(getDrawableState(), 0); 2287 if (color != mCurTextColor) { 2288 mCurTextColor = color; 2289 inval = true; 2290 } 2291 if (mLinkTextColor != null) { 2292 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2293 if (color != mTextPaint.linkColor) { 2294 mTextPaint.linkColor = color; 2295 inval = true; 2296 } 2297 } 2298 if (mHintTextColor != null) { 2299 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2300 if (color != mCurHintTextColor && mText.length() == 0) { 2301 mCurHintTextColor = color; 2302 inval = true; 2303 } 2304 } 2305 if (inval) { 2306 invalidate(); 2307 } 2308 } 2309 2310 @Override 2311 protected void drawableStateChanged() { 2312 super.drawableStateChanged(); 2313 if (mTextColor != null && mTextColor.isStateful() 2314 || (mHintTextColor != null && mHintTextColor.isStateful()) 2315 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2316 updateTextColors(); 2317 } 2318 2319 final Drawables dr = mDrawables; 2320 if (dr != null) { 2321 int[] state = getDrawableState(); 2322 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2323 dr.mDrawableTop.setState(state); 2324 } 2325 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2326 dr.mDrawableBottom.setState(state); 2327 } 2328 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2329 dr.mDrawableLeft.setState(state); 2330 } 2331 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2332 dr.mDrawableRight.setState(state); 2333 } 2334 } 2335 } 2336 2337 /** 2338 * User interface state that is stored by TextView for implementing 2339 * {@link View#onSaveInstanceState}. 2340 */ 2341 public static class SavedState extends BaseSavedState { 2342 int selStart; 2343 int selEnd; 2344 CharSequence text; 2345 boolean frozenWithFocus; 2346 CharSequence error; 2347 2348 SavedState(Parcelable superState) { 2349 super(superState); 2350 } 2351 2352 @Override 2353 public void writeToParcel(Parcel out, int flags) { 2354 super.writeToParcel(out, flags); 2355 out.writeInt(selStart); 2356 out.writeInt(selEnd); 2357 out.writeInt(frozenWithFocus ? 1 : 0); 2358 TextUtils.writeToParcel(text, out, flags); 2359 2360 if (error == null) { 2361 out.writeInt(0); 2362 } else { 2363 out.writeInt(1); 2364 TextUtils.writeToParcel(error, out, flags); 2365 } 2366 } 2367 2368 @Override 2369 public String toString() { 2370 String str = "TextView.SavedState{" 2371 + Integer.toHexString(System.identityHashCode(this)) 2372 + " start=" + selStart + " end=" + selEnd; 2373 if (text != null) { 2374 str += " text=" + text; 2375 } 2376 return str + "}"; 2377 } 2378 2379 @SuppressWarnings("hiding") 2380 public static final Parcelable.Creator<SavedState> CREATOR 2381 = new Parcelable.Creator<SavedState>() { 2382 public SavedState createFromParcel(Parcel in) { 2383 return new SavedState(in); 2384 } 2385 2386 public SavedState[] newArray(int size) { 2387 return new SavedState[size]; 2388 } 2389 }; 2390 2391 private SavedState(Parcel in) { 2392 super(in); 2393 selStart = in.readInt(); 2394 selEnd = in.readInt(); 2395 frozenWithFocus = (in.readInt() != 0); 2396 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2397 2398 if (in.readInt() != 0) { 2399 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2400 } 2401 } 2402 } 2403 2404 @Override 2405 public Parcelable onSaveInstanceState() { 2406 Parcelable superState = super.onSaveInstanceState(); 2407 2408 // Save state if we are forced to 2409 boolean save = mFreezesText; 2410 int start = 0; 2411 int end = 0; 2412 2413 if (mText != null) { 2414 start = getSelectionStart(); 2415 end = getSelectionEnd(); 2416 if (start >= 0 || end >= 0) { 2417 // Or save state if there is a selection 2418 save = true; 2419 } 2420 } 2421 2422 if (save) { 2423 SavedState ss = new SavedState(superState); 2424 // XXX Should also save the current scroll position! 2425 ss.selStart = start; 2426 ss.selEnd = end; 2427 2428 if (mText instanceof Spanned) { 2429 /* 2430 * Calling setText() strips off any ChangeWatchers; 2431 * strip them now to avoid leaking references. 2432 * But do it to a copy so that if there are any 2433 * further changes to the text of this view, it 2434 * won't get into an inconsistent state. 2435 */ 2436 2437 Spannable sp = new SpannableString(mText); 2438 2439 for (ChangeWatcher cw : 2440 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2441 sp.removeSpan(cw); 2442 } 2443 2444 ss.text = sp; 2445 } else { 2446 ss.text = mText.toString(); 2447 } 2448 2449 if (isFocused() && start >= 0 && end >= 0) { 2450 ss.frozenWithFocus = true; 2451 } 2452 2453 ss.error = mError; 2454 2455 return ss; 2456 } 2457 2458 return superState; 2459 } 2460 2461 @Override 2462 public void onRestoreInstanceState(Parcelable state) { 2463 if (!(state instanceof SavedState)) { 2464 super.onRestoreInstanceState(state); 2465 return; 2466 } 2467 2468 SavedState ss = (SavedState)state; 2469 super.onRestoreInstanceState(ss.getSuperState()); 2470 2471 // XXX restore buffer type too, as well as lots of other stuff 2472 if (ss.text != null) { 2473 setText(ss.text); 2474 } 2475 2476 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2477 if (mText instanceof Spannable) { 2478 int len = mText.length(); 2479 2480 if (ss.selStart > len || ss.selEnd > len) { 2481 String restored = ""; 2482 2483 if (ss.text != null) { 2484 restored = "(restored) "; 2485 } 2486 2487 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2488 "/" + ss.selEnd + " out of range for " + restored + 2489 "text " + mText); 2490 } else { 2491 Selection.setSelection((Spannable) mText, ss.selStart, 2492 ss.selEnd); 2493 2494 if (ss.frozenWithFocus) { 2495 mFrozenWithFocus = true; 2496 } 2497 } 2498 } 2499 } 2500 2501 if (ss.error != null) { 2502 final CharSequence error = ss.error; 2503 // Display the error later, after the first layout pass 2504 post(new Runnable() { 2505 public void run() { 2506 setError(error); 2507 } 2508 }); 2509 } 2510 } 2511 2512 /** 2513 * Control whether this text view saves its entire text contents when 2514 * freezing to an icicle, in addition to dynamic state such as cursor 2515 * position. By default this is false, not saving the text. Set to true 2516 * if the text in the text view is not being saved somewhere else in 2517 * persistent storage (such as in a content provider) so that if the 2518 * view is later thawed the user will not lose their data. 2519 * 2520 * @param freezesText Controls whether a frozen icicle should include the 2521 * entire text data: true to include it, false to not. 2522 * 2523 * @attr ref android.R.styleable#TextView_freezesText 2524 */ 2525 @android.view.RemotableViewMethod 2526 public void setFreezesText(boolean freezesText) { 2527 mFreezesText = freezesText; 2528 } 2529 2530 /** 2531 * Return whether this text view is including its entire text contents 2532 * in frozen icicles. 2533 * 2534 * @return Returns true if text is included, false if it isn't. 2535 * 2536 * @see #setFreezesText 2537 */ 2538 public boolean getFreezesText() { 2539 return mFreezesText; 2540 } 2541 2542 /////////////////////////////////////////////////////////////////////////// 2543 2544 /** 2545 * Sets the Factory used to create new Editables. 2546 */ 2547 public final void setEditableFactory(Editable.Factory factory) { 2548 mEditableFactory = factory; 2549 setText(mText); 2550 } 2551 2552 /** 2553 * Sets the Factory used to create new Spannables. 2554 */ 2555 public final void setSpannableFactory(Spannable.Factory factory) { 2556 mSpannableFactory = factory; 2557 setText(mText); 2558 } 2559 2560 /** 2561 * Sets the string value of the TextView. TextView <em>does not</em> accept 2562 * HTML-like formatting, which you can do with text strings in XML resource files. 2563 * To style your strings, attach android.text.style.* objects to a 2564 * {@link android.text.SpannableString SpannableString}, or see the 2565 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2566 * Available Resource Types</a> documentation for an example of setting 2567 * formatted text in the XML resource file. 2568 * 2569 * @attr ref android.R.styleable#TextView_text 2570 */ 2571 @android.view.RemotableViewMethod 2572 public final void setText(CharSequence text) { 2573 setText(text, mBufferType); 2574 } 2575 2576 /** 2577 * Like {@link #setText(CharSequence)}, 2578 * except that the cursor position (if any) is retained in the new text. 2579 * 2580 * @param text The new text to place in the text view. 2581 * 2582 * @see #setText(CharSequence) 2583 */ 2584 @android.view.RemotableViewMethod 2585 public final void setTextKeepState(CharSequence text) { 2586 setTextKeepState(text, mBufferType); 2587 } 2588 2589 /** 2590 * Sets the text that this TextView is to display (see 2591 * {@link #setText(CharSequence)}) and also sets whether it is stored 2592 * in a styleable/spannable buffer and whether it is editable. 2593 * 2594 * @attr ref android.R.styleable#TextView_text 2595 * @attr ref android.R.styleable#TextView_bufferType 2596 */ 2597 public void setText(CharSequence text, BufferType type) { 2598 setText(text, type, true, 0); 2599 2600 if (mCharWrapper != null) { 2601 mCharWrapper.mChars = null; 2602 } 2603 } 2604 2605 private void setText(CharSequence text, BufferType type, 2606 boolean notifyBefore, int oldlen) { 2607 if (text == null) { 2608 text = ""; 2609 } 2610 2611 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2612 2613 if (text instanceof Spanned && 2614 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2615 setHorizontalFadingEdgeEnabled(true); 2616 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2617 } 2618 2619 int n = mFilters.length; 2620 for (int i = 0; i < n; i++) { 2621 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2622 EMPTY_SPANNED, 0, 0); 2623 if (out != null) { 2624 text = out; 2625 } 2626 } 2627 2628 if (notifyBefore) { 2629 if (mText != null) { 2630 oldlen = mText.length(); 2631 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2632 } else { 2633 sendBeforeTextChanged("", 0, 0, text.length()); 2634 } 2635 } 2636 2637 boolean needEditableForNotification = false; 2638 2639 if (mListeners != null && mListeners.size() != 0) { 2640 needEditableForNotification = true; 2641 } 2642 2643 if (type == BufferType.EDITABLE || mInput != null || 2644 needEditableForNotification) { 2645 Editable t = mEditableFactory.newEditable(text); 2646 text = t; 2647 setFilters(t, mFilters); 2648 InputMethodManager imm = InputMethodManager.peekInstance(); 2649 if (imm != null) imm.restartInput(this); 2650 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2651 text = mSpannableFactory.newSpannable(text); 2652 } else if (!(text instanceof CharWrapper)) { 2653 text = TextUtils.stringOrSpannedString(text); 2654 } 2655 2656 if (mAutoLinkMask != 0) { 2657 Spannable s2; 2658 2659 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2660 s2 = (Spannable) text; 2661 } else { 2662 s2 = mSpannableFactory.newSpannable(text); 2663 } 2664 2665 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2666 text = s2; 2667 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2668 2669 /* 2670 * We must go ahead and set the text before changing the 2671 * movement method, because setMovementMethod() may call 2672 * setText() again to try to upgrade the buffer type. 2673 */ 2674 mText = text; 2675 2676 if (mLinksClickable) { 2677 setMovementMethod(LinkMovementMethod.getInstance()); 2678 } 2679 } 2680 } 2681 2682 mBufferType = type; 2683 mText = text; 2684 2685 if (mTransformation == null) 2686 mTransformed = text; 2687 else 2688 mTransformed = mTransformation.getTransformation(text, this); 2689 2690 final int textLength = text.length(); 2691 2692 if (text instanceof Spannable) { 2693 Spannable sp = (Spannable) text; 2694 2695 // Remove any ChangeWatchers that might have come 2696 // from other TextViews. 2697 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2698 final int count = watchers.length; 2699 for (int i = 0; i < count; i++) 2700 sp.removeSpan(watchers[i]); 2701 2702 if (mChangeWatcher == null) 2703 mChangeWatcher = new ChangeWatcher(); 2704 2705 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2706 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2707 2708 if (mInput != null) { 2709 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2710 } 2711 2712 if (mTransformation != null) { 2713 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2714 2715 } 2716 2717 if (mMovement != null) { 2718 mMovement.initialize(this, (Spannable) text); 2719 2720 /* 2721 * Initializing the movement method will have set the 2722 * selection, so reset mSelectionMoved to keep that from 2723 * interfering with the normal on-focus selection-setting. 2724 */ 2725 mSelectionMoved = false; 2726 } 2727 } 2728 2729 if (mLayout != null) { 2730 checkForRelayout(); 2731 } 2732 2733 sendOnTextChanged(text, 0, oldlen, textLength); 2734 onTextChanged(text, 0, oldlen, textLength); 2735 2736 if (needEditableForNotification) { 2737 sendAfterTextChanged((Editable) text); 2738 } 2739 2740 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 2741 prepareCursorControllers(); 2742 } 2743 2744 /** 2745 * Sets the TextView to display the specified slice of the specified 2746 * char array. You must promise that you will not change the contents 2747 * of the array except for right before another call to setText(), 2748 * since the TextView has no way to know that the text 2749 * has changed and that it needs to invalidate and re-layout. 2750 */ 2751 public final void setText(char[] text, int start, int len) { 2752 int oldlen = 0; 2753 2754 if (start < 0 || len < 0 || start + len > text.length) { 2755 throw new IndexOutOfBoundsException(start + ", " + len); 2756 } 2757 2758 /* 2759 * We must do the before-notification here ourselves because if 2760 * the old text is a CharWrapper we destroy it before calling 2761 * into the normal path. 2762 */ 2763 if (mText != null) { 2764 oldlen = mText.length(); 2765 sendBeforeTextChanged(mText, 0, oldlen, len); 2766 } else { 2767 sendBeforeTextChanged("", 0, 0, len); 2768 } 2769 2770 if (mCharWrapper == null) { 2771 mCharWrapper = new CharWrapper(text, start, len); 2772 } else { 2773 mCharWrapper.set(text, start, len); 2774 } 2775 2776 setText(mCharWrapper, mBufferType, false, oldlen); 2777 } 2778 2779 private static class CharWrapper 2780 implements CharSequence, GetChars, GraphicsOperations { 2781 private char[] mChars; 2782 private int mStart, mLength; 2783 2784 public CharWrapper(char[] chars, int start, int len) { 2785 mChars = chars; 2786 mStart = start; 2787 mLength = len; 2788 } 2789 2790 /* package */ void set(char[] chars, int start, int len) { 2791 mChars = chars; 2792 mStart = start; 2793 mLength = len; 2794 } 2795 2796 public int length() { 2797 return mLength; 2798 } 2799 2800 public char charAt(int off) { 2801 return mChars[off + mStart]; 2802 } 2803 2804 @Override 2805 public String toString() { 2806 return new String(mChars, mStart, mLength); 2807 } 2808 2809 public CharSequence subSequence(int start, int end) { 2810 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2811 throw new IndexOutOfBoundsException(start + ", " + end); 2812 } 2813 2814 return new String(mChars, start + mStart, end - start); 2815 } 2816 2817 public void getChars(int start, int end, char[] buf, int off) { 2818 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2819 throw new IndexOutOfBoundsException(start + ", " + end); 2820 } 2821 2822 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2823 } 2824 2825 public void drawText(Canvas c, int start, int end, 2826 float x, float y, Paint p) { 2827 c.drawText(mChars, start + mStart, end - start, x, y, p); 2828 } 2829 2830 public float measureText(int start, int end, Paint p) { 2831 return p.measureText(mChars, start + mStart, end - start); 2832 } 2833 2834 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2835 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2836 } 2837 } 2838 2839 /** 2840 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2841 * except that the cursor position (if any) is retained in the new text. 2842 * 2843 * @see #setText(CharSequence, android.widget.TextView.BufferType) 2844 */ 2845 public final void setTextKeepState(CharSequence text, BufferType type) { 2846 int start = getSelectionStart(); 2847 int end = getSelectionEnd(); 2848 int len = text.length(); 2849 2850 setText(text, type); 2851 2852 if (start >= 0 || end >= 0) { 2853 if (mText instanceof Spannable) { 2854 Selection.setSelection((Spannable) mText, 2855 Math.max(0, Math.min(start, len)), 2856 Math.max(0, Math.min(end, len))); 2857 } 2858 } 2859 } 2860 2861 @android.view.RemotableViewMethod 2862 public final void setText(int resid) { 2863 setText(getContext().getResources().getText(resid)); 2864 } 2865 2866 public final void setText(int resid, BufferType type) { 2867 setText(getContext().getResources().getText(resid), type); 2868 } 2869 2870 /** 2871 * Sets the text to be displayed when the text of the TextView is empty. 2872 * Null means to use the normal empty text. The hint does not currently 2873 * participate in determining the size of the view. 2874 * 2875 * @attr ref android.R.styleable#TextView_hint 2876 */ 2877 @android.view.RemotableViewMethod 2878 public final void setHint(CharSequence hint) { 2879 mHint = TextUtils.stringOrSpannedString(hint); 2880 2881 if (mLayout != null) { 2882 checkForRelayout(); 2883 } 2884 2885 if (mText.length() == 0) { 2886 invalidate(); 2887 } 2888 } 2889 2890 /** 2891 * Sets the text to be displayed when the text of the TextView is empty, 2892 * from a resource. 2893 * 2894 * @attr ref android.R.styleable#TextView_hint 2895 */ 2896 @android.view.RemotableViewMethod 2897 public final void setHint(int resid) { 2898 setHint(getContext().getResources().getText(resid)); 2899 } 2900 2901 /** 2902 * Returns the hint that is displayed when the text of the TextView 2903 * is empty. 2904 * 2905 * @attr ref android.R.styleable#TextView_hint 2906 */ 2907 @ViewDebug.CapturedViewProperty 2908 public CharSequence getHint() { 2909 return mHint; 2910 } 2911 2912 /** 2913 * Set the type of the content with a constant as defined for 2914 * {@link EditorInfo#inputType}. This will take care of changing 2915 * the key listener, by calling {@link #setKeyListener(KeyListener)}, to 2916 * match the given content type. If the given content type is 2917 * {@link EditorInfo#TYPE_NULL} then a soft keyboard will 2918 * not be displayed for this text view. 2919 * 2920 * @see #getInputType() 2921 * @see #setRawInputType(int) 2922 * @see android.text.InputType 2923 * @attr ref android.R.styleable#TextView_inputType 2924 */ 2925 public void setInputType(int type) { 2926 final boolean wasPassword = isPasswordInputType(mInputType); 2927 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 2928 setInputType(type, false); 2929 final boolean isPassword = isPasswordInputType(type); 2930 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 2931 boolean forceUpdate = false; 2932 if (isPassword) { 2933 setTransformationMethod(PasswordTransformationMethod.getInstance()); 2934 setTypefaceByIndex(MONOSPACE, 0); 2935 } else if (isVisiblePassword) { 2936 if (mTransformation == PasswordTransformationMethod.getInstance()) { 2937 forceUpdate = true; 2938 } 2939 setTypefaceByIndex(MONOSPACE, 0); 2940 } else if (wasPassword || wasVisiblePassword) { 2941 // not in password mode, clean up typeface and transformation 2942 setTypefaceByIndex(-1, -1); 2943 if (mTransformation == PasswordTransformationMethod.getInstance()) { 2944 forceUpdate = true; 2945 } 2946 } 2947 2948 boolean multiLine = (type&(EditorInfo.TYPE_MASK_CLASS 2949 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 2950 (EditorInfo.TYPE_CLASS_TEXT 2951 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 2952 2953 // We need to update the single line mode if it has changed or we 2954 // were previously in password mode. 2955 if (mSingleLine == multiLine || forceUpdate) { 2956 // Change single line mode, but only change the transformation if 2957 // we are not in password mode. 2958 applySingleLine(!multiLine, !isPassword); 2959 } 2960 2961 InputMethodManager imm = InputMethodManager.peekInstance(); 2962 if (imm != null) imm.restartInput(this); 2963 } 2964 2965 /** 2966 * It would be better to rely on the input type for everything. A password inputType should have 2967 * a password transformation. We should hence use isPasswordInputType instead of this method. 2968 * 2969 * We should: 2970 * - Call setInputType in setKeyListener instead of changing the input type directly (which 2971 * would install the correct transformation). 2972 * - Refuse the installation of a non-password transformation in setTransformation if the input 2973 * type is password. 2974 * 2975 * However, this is like this for legacy reasons and we cannot break existing apps. This method 2976 * is useful since it matches what the user can see (obfuscated text or not). 2977 * 2978 * @return true if the current transformation method is of the password type. 2979 */ 2980 private boolean hasPasswordTransformationMethod() { 2981 return mTransformation instanceof PasswordTransformationMethod; 2982 } 2983 2984 private boolean isPasswordInputType(int inputType) { 2985 final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS 2986 | EditorInfo.TYPE_MASK_VARIATION); 2987 return variation 2988 == (EditorInfo.TYPE_CLASS_TEXT 2989 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 2990 } 2991 2992 private boolean isVisiblePasswordInputType(int inputType) { 2993 final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS 2994 | EditorInfo.TYPE_MASK_VARIATION); 2995 return variation 2996 == (EditorInfo.TYPE_CLASS_TEXT 2997 | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 2998 } 2999 3000 /** 3001 * Directly change the content type integer of the text view, without 3002 * modifying any other state. 3003 * @see #setInputType(int) 3004 * @see android.text.InputType 3005 * @attr ref android.R.styleable#TextView_inputType 3006 */ 3007 public void setRawInputType(int type) { 3008 mInputType = type; 3009 } 3010 3011 private void setInputType(int type, boolean direct) { 3012 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3013 KeyListener input; 3014 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3015 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3016 TextKeyListener.Capitalize cap; 3017 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3018 cap = TextKeyListener.Capitalize.CHARACTERS; 3019 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3020 cap = TextKeyListener.Capitalize.WORDS; 3021 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3022 cap = TextKeyListener.Capitalize.SENTENCES; 3023 } else { 3024 cap = TextKeyListener.Capitalize.NONE; 3025 } 3026 input = TextKeyListener.getInstance(autotext, cap); 3027 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3028 input = DigitsKeyListener.getInstance( 3029 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3030 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3031 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3032 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3033 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3034 input = DateKeyListener.getInstance(); 3035 break; 3036 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3037 input = TimeKeyListener.getInstance(); 3038 break; 3039 default: 3040 input = DateTimeKeyListener.getInstance(); 3041 break; 3042 } 3043 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3044 input = DialerKeyListener.getInstance(); 3045 } else { 3046 input = TextKeyListener.getInstance(); 3047 } 3048 setRawInputType(type); 3049 if (direct) mInput = input; 3050 else { 3051 setKeyListenerOnly(input); 3052 } 3053 } 3054 3055 /** 3056 * Get the type of the content. 3057 * 3058 * @see #setInputType(int) 3059 * @see android.text.InputType 3060 */ 3061 public int getInputType() { 3062 return mInputType; 3063 } 3064 3065 /** 3066 * Change the editor type integer associated with the text view, which 3067 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3068 * has focus. 3069 * @see #getImeOptions 3070 * @see android.view.inputmethod.EditorInfo 3071 * @attr ref android.R.styleable#TextView_imeOptions 3072 */ 3073 public void setImeOptions(int imeOptions) { 3074 if (mInputContentType == null) { 3075 mInputContentType = new InputContentType(); 3076 } 3077 mInputContentType.imeOptions = imeOptions; 3078 } 3079 3080 /** 3081 * Get the type of the IME editor. 3082 * 3083 * @see #setImeOptions(int) 3084 * @see android.view.inputmethod.EditorInfo 3085 */ 3086 public int getImeOptions() { 3087 return mInputContentType != null 3088 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3089 } 3090 3091 /** 3092 * Change the custom IME action associated with the text view, which 3093 * will be reported to an IME with {@link EditorInfo#actionLabel} 3094 * and {@link EditorInfo#actionId} when it has focus. 3095 * @see #getImeActionLabel 3096 * @see #getImeActionId 3097 * @see android.view.inputmethod.EditorInfo 3098 * @attr ref android.R.styleable#TextView_imeActionLabel 3099 * @attr ref android.R.styleable#TextView_imeActionId 3100 */ 3101 public void setImeActionLabel(CharSequence label, int actionId) { 3102 if (mInputContentType == null) { 3103 mInputContentType = new InputContentType(); 3104 } 3105 mInputContentType.imeActionLabel = label; 3106 mInputContentType.imeActionId = actionId; 3107 } 3108 3109 /** 3110 * Get the IME action label previous set with {@link #setImeActionLabel}. 3111 * 3112 * @see #setImeActionLabel 3113 * @see android.view.inputmethod.EditorInfo 3114 */ 3115 public CharSequence getImeActionLabel() { 3116 return mInputContentType != null 3117 ? mInputContentType.imeActionLabel : null; 3118 } 3119 3120 /** 3121 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3122 * 3123 * @see #setImeActionLabel 3124 * @see android.view.inputmethod.EditorInfo 3125 */ 3126 public int getImeActionId() { 3127 return mInputContentType != null 3128 ? mInputContentType.imeActionId : 0; 3129 } 3130 3131 /** 3132 * Set a special listener to be called when an action is performed 3133 * on the text view. This will be called when the enter key is pressed, 3134 * or when an action supplied to the IME is selected by the user. Setting 3135 * this means that the normal hard key event will not insert a newline 3136 * into the text view, even if it is multi-line; holding down the ALT 3137 * modifier will, however, allow the user to insert a newline character. 3138 */ 3139 public void setOnEditorActionListener(OnEditorActionListener l) { 3140 if (mInputContentType == null) { 3141 mInputContentType = new InputContentType(); 3142 } 3143 mInputContentType.onEditorActionListener = l; 3144 } 3145 3146 /** 3147 * Called when an attached input method calls 3148 * {@link InputConnection#performEditorAction(int) 3149 * InputConnection.performEditorAction()} 3150 * for this text view. The default implementation will call your action 3151 * listener supplied to {@link #setOnEditorActionListener}, or perform 3152 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3153 * EditorInfo.IME_ACTION_NEXT} or {@link EditorInfo#IME_ACTION_DONE 3154 * EditorInfo.IME_ACTION_DONE}. 3155 * 3156 * <p>For backwards compatibility, if no IME options have been set and the 3157 * text view would not normally advance focus on enter, then 3158 * the NEXT and DONE actions received here will be turned into an enter 3159 * key down/up pair to go through the normal key handling. 3160 * 3161 * @param actionCode The code of the action being performed. 3162 * 3163 * @see #setOnEditorActionListener 3164 */ 3165 public void onEditorAction(int actionCode) { 3166 final InputContentType ict = mInputContentType; 3167 if (ict != null) { 3168 if (ict.onEditorActionListener != null) { 3169 if (ict.onEditorActionListener.onEditorAction(this, 3170 actionCode, null)) { 3171 return; 3172 } 3173 } 3174 3175 // This is the handling for some default action. 3176 // Note that for backwards compatibility we don't do this 3177 // default handling if explicit ime options have not been given, 3178 // instead turning this into the normal enter key codes that an 3179 // app may be expecting. 3180 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3181 View v = focusSearch(FOCUS_DOWN); 3182 if (v != null) { 3183 if (!v.requestFocus(FOCUS_DOWN)) { 3184 throw new IllegalStateException("focus search returned a view " + 3185 "that wasn't able to take focus!"); 3186 } 3187 } 3188 return; 3189 3190 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3191 InputMethodManager imm = InputMethodManager.peekInstance(); 3192 if (imm != null) { 3193 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3194 } 3195 return; 3196 } 3197 } 3198 3199 Handler h = getHandler(); 3200 if (h != null) { 3201 long eventTime = SystemClock.uptimeMillis(); 3202 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3203 new KeyEvent(eventTime, eventTime, 3204 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0, 3205 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3206 | KeyEvent.FLAG_EDITOR_ACTION))); 3207 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3208 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3209 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0, 3210 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3211 | KeyEvent.FLAG_EDITOR_ACTION))); 3212 } 3213 } 3214 3215 /** 3216 * Set the private content type of the text, which is the 3217 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3218 * field that will be filled in when creating an input connection. 3219 * 3220 * @see #getPrivateImeOptions() 3221 * @see EditorInfo#privateImeOptions 3222 * @attr ref android.R.styleable#TextView_privateImeOptions 3223 */ 3224 public void setPrivateImeOptions(String type) { 3225 if (mInputContentType == null) mInputContentType = new InputContentType(); 3226 mInputContentType.privateImeOptions = type; 3227 } 3228 3229 /** 3230 * Get the private type of the content. 3231 * 3232 * @see #setPrivateImeOptions(String) 3233 * @see EditorInfo#privateImeOptions 3234 */ 3235 public String getPrivateImeOptions() { 3236 return mInputContentType != null 3237 ? mInputContentType.privateImeOptions : null; 3238 } 3239 3240 /** 3241 * Set the extra input data of the text, which is the 3242 * {@link EditorInfo#extras TextBoxAttribute.extras} 3243 * Bundle that will be filled in when creating an input connection. The 3244 * given integer is the resource ID of an XML resource holding an 3245 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3246 * 3247 * @see #getInputExtras(boolean) 3248 * @see EditorInfo#extras 3249 * @attr ref android.R.styleable#TextView_editorExtras 3250 */ 3251 public void setInputExtras(int xmlResId) 3252 throws XmlPullParserException, IOException { 3253 XmlResourceParser parser = getResources().getXml(xmlResId); 3254 if (mInputContentType == null) mInputContentType = new InputContentType(); 3255 mInputContentType.extras = new Bundle(); 3256 getResources().parseBundleExtras(parser, mInputContentType.extras); 3257 } 3258 3259 /** 3260 * Retrieve the input extras currently associated with the text view, which 3261 * can be viewed as well as modified. 3262 * 3263 * @param create If true, the extras will be created if they don't already 3264 * exist. Otherwise, null will be returned if none have been created. 3265 * @see #setInputExtras(int) 3266 * @see EditorInfo#extras 3267 * @attr ref android.R.styleable#TextView_editorExtras 3268 */ 3269 public Bundle getInputExtras(boolean create) { 3270 if (mInputContentType == null) { 3271 if (!create) return null; 3272 mInputContentType = new InputContentType(); 3273 } 3274 if (mInputContentType.extras == null) { 3275 if (!create) return null; 3276 mInputContentType.extras = new Bundle(); 3277 } 3278 return mInputContentType.extras; 3279 } 3280 3281 /** 3282 * Returns the error message that was set to be displayed with 3283 * {@link #setError}, or <code>null</code> if no error was set 3284 * or if it the error was cleared by the widget after user input. 3285 */ 3286 public CharSequence getError() { 3287 return mError; 3288 } 3289 3290 /** 3291 * Sets the right-hand compound drawable of the TextView to the "error" 3292 * icon and sets an error message that will be displayed in a popup when 3293 * the TextView has focus. The icon and error message will be reset to 3294 * null when any key events cause changes to the TextView's text. If the 3295 * <code>error</code> is <code>null</code>, the error message and icon 3296 * will be cleared. 3297 */ 3298 @android.view.RemotableViewMethod 3299 public void setError(CharSequence error) { 3300 if (error == null) { 3301 setError(null, null); 3302 } else { 3303 Drawable dr = getContext().getResources(). 3304 getDrawable(com.android.internal.R.drawable. 3305 indicator_input_error); 3306 3307 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3308 setError(error, dr); 3309 } 3310 } 3311 3312 /** 3313 * Sets the right-hand compound drawable of the TextView to the specified 3314 * icon and sets an error message that will be displayed in a popup when 3315 * the TextView has focus. The icon and error message will be reset to 3316 * null when any key events cause changes to the TextView's text. The 3317 * drawable must already have had {@link Drawable#setBounds} set on it. 3318 * If the <code>error</code> is <code>null</code>, the error message will 3319 * be cleared (and you should provide a <code>null</code> icon as well). 3320 */ 3321 public void setError(CharSequence error, Drawable icon) { 3322 error = TextUtils.stringOrSpannedString(error); 3323 3324 mError = error; 3325 mErrorWasChanged = true; 3326 final Drawables dr = mDrawables; 3327 if (dr != null) { 3328 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, 3329 icon, dr.mDrawableBottom); 3330 } else { 3331 setCompoundDrawables(null, null, icon, null); 3332 } 3333 3334 if (error == null) { 3335 if (mPopup != null) { 3336 if (mPopup.isShowing()) { 3337 mPopup.dismiss(); 3338 } 3339 3340 mPopup = null; 3341 } 3342 } else { 3343 if (isFocused()) { 3344 showError(); 3345 } 3346 } 3347 } 3348 3349 private void showError() { 3350 if (getWindowToken() == null) { 3351 mShowErrorAfterAttach = true; 3352 return; 3353 } 3354 3355 if (mPopup == null) { 3356 LayoutInflater inflater = LayoutInflater.from(getContext()); 3357 final TextView err = (TextView) inflater.inflate(com.android.internal.R.layout.textview_hint, 3358 null); 3359 3360 final float scale = getResources().getDisplayMetrics().density; 3361 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), 3362 (int) (50 * scale + 0.5f)); 3363 mPopup.setFocusable(false); 3364 // The user is entering text, so the input method is needed. We 3365 // don't want the popup to be displayed on top of it. 3366 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3367 } 3368 3369 TextView tv = (TextView) mPopup.getContentView(); 3370 chooseSize(mPopup, mError, tv); 3371 tv.setText(mError); 3372 3373 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3374 mPopup.fixDirection(mPopup.isAboveAnchor()); 3375 } 3376 3377 private static class ErrorPopup extends PopupWindow { 3378 private boolean mAbove = false; 3379 private final TextView mView; 3380 3381 ErrorPopup(TextView v, int width, int height) { 3382 super(v, width, height); 3383 mView = v; 3384 } 3385 3386 void fixDirection(boolean above) { 3387 mAbove = above; 3388 3389 if (above) { 3390 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error_above); 3391 } else { 3392 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error); 3393 } 3394 } 3395 3396 @Override 3397 public void update(int x, int y, int w, int h, boolean force) { 3398 super.update(x, y, w, h, force); 3399 3400 boolean above = isAboveAnchor(); 3401 if (above != mAbove) { 3402 fixDirection(above); 3403 } 3404 } 3405 } 3406 3407 /** 3408 * Returns the Y offset to make the pointy top of the error point 3409 * at the middle of the error icon. 3410 */ 3411 private int getErrorX() { 3412 /* 3413 * The "25" is the distance between the point and the right edge 3414 * of the background 3415 */ 3416 final float scale = getResources().getDisplayMetrics().density; 3417 3418 final Drawables dr = mDrawables; 3419 return getWidth() - mPopup.getWidth() 3420 - getPaddingRight() 3421 - (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3422 } 3423 3424 /** 3425 * Returns the Y offset to make the pointy top of the error point 3426 * at the bottom of the error icon. 3427 */ 3428 private int getErrorY() { 3429 /* 3430 * Compound, not extended, because the icon is not clipped 3431 * if the text height is smaller. 3432 */ 3433 int vspace = mBottom - mTop - 3434 getCompoundPaddingBottom() - getCompoundPaddingTop(); 3435 3436 final Drawables dr = mDrawables; 3437 int icontop = getCompoundPaddingTop() 3438 + (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3439 3440 /* 3441 * The "2" is the distance between the point and the top edge 3442 * of the background. 3443 */ 3444 3445 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) 3446 - getHeight() - 2; 3447 } 3448 3449 private void hideError() { 3450 if (mPopup != null) { 3451 if (mPopup.isShowing()) { 3452 mPopup.dismiss(); 3453 } 3454 } 3455 3456 mShowErrorAfterAttach = false; 3457 } 3458 3459 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3460 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3461 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3462 3463 /* 3464 * Figure out how big the text would be if we laid it out to the 3465 * full width of this view minus the border. 3466 */ 3467 int cap = getWidth() - wid; 3468 if (cap < 0) { 3469 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3470 } 3471 3472 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3473 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3474 float max = 0; 3475 for (int i = 0; i < l.getLineCount(); i++) { 3476 max = Math.max(max, l.getLineWidth(i)); 3477 } 3478 3479 /* 3480 * Now set the popup size to be big enough for the text plus the border. 3481 */ 3482 pop.setWidth(wid + (int) Math.ceil(max)); 3483 pop.setHeight(ht + l.getHeight()); 3484 } 3485 3486 3487 @Override 3488 protected boolean setFrame(int l, int t, int r, int b) { 3489 boolean result = super.setFrame(l, t, r, b); 3490 3491 if (mPopup != null) { 3492 TextView tv = (TextView) mPopup.getContentView(); 3493 chooseSize(mPopup, mError, tv); 3494 mPopup.update(this, getErrorX(), getErrorY(), 3495 mPopup.getWidth(), mPopup.getHeight()); 3496 } 3497 3498 restartMarqueeIfNeeded(); 3499 3500 return result; 3501 } 3502 3503 private void restartMarqueeIfNeeded() { 3504 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3505 mRestartMarquee = false; 3506 startMarquee(); 3507 } 3508 } 3509 3510 /** 3511 * Sets the list of input filters that will be used if the buffer is 3512 * Editable. Has no effect otherwise. 3513 * 3514 * @attr ref android.R.styleable#TextView_maxLength 3515 */ 3516 public void setFilters(InputFilter[] filters) { 3517 if (filters == null) { 3518 throw new IllegalArgumentException(); 3519 } 3520 3521 mFilters = filters; 3522 3523 if (mText instanceof Editable) { 3524 setFilters((Editable) mText, filters); 3525 } 3526 } 3527 3528 /** 3529 * Sets the list of input filters on the specified Editable, 3530 * and includes mInput in the list if it is an InputFilter. 3531 */ 3532 private void setFilters(Editable e, InputFilter[] filters) { 3533 if (mInput instanceof InputFilter) { 3534 InputFilter[] nf = new InputFilter[filters.length + 1]; 3535 3536 System.arraycopy(filters, 0, nf, 0, filters.length); 3537 nf[filters.length] = (InputFilter) mInput; 3538 3539 e.setFilters(nf); 3540 } else { 3541 e.setFilters(filters); 3542 } 3543 } 3544 3545 /** 3546 * Returns the current list of input filters. 3547 */ 3548 public InputFilter[] getFilters() { 3549 return mFilters; 3550 } 3551 3552 ///////////////////////////////////////////////////////////////////////// 3553 3554 private int getVerticalOffset(boolean forceNormal) { 3555 int voffset = 0; 3556 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3557 3558 Layout l = mLayout; 3559 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3560 l = mHintLayout; 3561 } 3562 3563 if (gravity != Gravity.TOP) { 3564 int boxht; 3565 3566 if (l == mHintLayout) { 3567 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3568 getCompoundPaddingBottom(); 3569 } else { 3570 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3571 getExtendedPaddingBottom(); 3572 } 3573 int textht = l.getHeight(); 3574 3575 if (textht < boxht) { 3576 if (gravity == Gravity.BOTTOM) 3577 voffset = boxht - textht; 3578 else // (gravity == Gravity.CENTER_VERTICAL) 3579 voffset = (boxht - textht) >> 1; 3580 } 3581 } 3582 return voffset; 3583 } 3584 3585 private int getBottomVerticalOffset(boolean forceNormal) { 3586 int voffset = 0; 3587 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3588 3589 Layout l = mLayout; 3590 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3591 l = mHintLayout; 3592 } 3593 3594 if (gravity != Gravity.BOTTOM) { 3595 int boxht; 3596 3597 if (l == mHintLayout) { 3598 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3599 getCompoundPaddingBottom(); 3600 } else { 3601 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3602 getExtendedPaddingBottom(); 3603 } 3604 int textht = l.getHeight(); 3605 3606 if (textht < boxht) { 3607 if (gravity == Gravity.TOP) 3608 voffset = boxht - textht; 3609 else // (gravity == Gravity.CENTER_VERTICAL) 3610 voffset = (boxht - textht) >> 1; 3611 } 3612 } 3613 return voffset; 3614 } 3615 3616 private void invalidateCursorPath() { 3617 if (mHighlightPathBogus) { 3618 invalidateCursor(); 3619 } else { 3620 synchronized (sTempRect) { 3621 /* 3622 * The reason for this concern about the thickness of the 3623 * cursor and doing the floor/ceil on the coordinates is that 3624 * some EditTexts (notably textfields in the Browser) have 3625 * anti-aliased text where not all the characters are 3626 * necessarily at integer-multiple locations. This should 3627 * make sure the entire cursor gets invalidated instead of 3628 * sometimes missing half a pixel. 3629 */ 3630 3631 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3632 if (thick < 1.0f) { 3633 thick = 1.0f; 3634 } 3635 3636 thick /= 2; 3637 3638 mHighlightPath.computeBounds(sTempRect, false); 3639 3640 int left = getCompoundPaddingLeft(); 3641 int top = getExtendedPaddingTop() + getVerticalOffset(true); 3642 3643 invalidate((int) FloatMath.floor(left + sTempRect.left - thick), 3644 (int) FloatMath.floor(top + sTempRect.top - thick), 3645 (int) FloatMath.ceil(left + sTempRect.right + thick), 3646 (int) FloatMath.ceil(top + sTempRect.bottom + thick)); 3647 } 3648 } 3649 } 3650 3651 private void invalidateCursor() { 3652 int where = getSelectionEnd(); 3653 3654 invalidateCursor(where, where, where); 3655 } 3656 3657 private void invalidateCursor(int a, int b, int c) { 3658 if (mLayout == null) { 3659 invalidate(); 3660 } else { 3661 if (a >= 0 || b >= 0 || c >= 0) { 3662 int first = Math.min(Math.min(a, b), c); 3663 int last = Math.max(Math.max(a, b), c); 3664 3665 int line = mLayout.getLineForOffset(first); 3666 int top = mLayout.getLineTop(line); 3667 3668 // This is ridiculous, but the descent from the line above 3669 // can hang down into the line we really want to redraw, 3670 // so we have to invalidate part of the line above to make 3671 // sure everything that needs to be redrawn really is. 3672 // (But not the whole line above, because that would cause 3673 // the same problem with the descenders on the line above it!) 3674 if (line > 0) { 3675 top -= mLayout.getLineDescent(line - 1); 3676 } 3677 3678 int line2; 3679 3680 if (first == last) 3681 line2 = line; 3682 else 3683 line2 = mLayout.getLineForOffset(last); 3684 3685 int bottom = mLayout.getLineTop(line2 + 1); 3686 int voffset = getVerticalOffset(true); 3687 3688 int left = getCompoundPaddingLeft() + mScrollX; 3689 invalidate(left, top + voffset + getExtendedPaddingTop(), 3690 left + getWidth() - getCompoundPaddingLeft() - 3691 getCompoundPaddingRight(), 3692 bottom + voffset + getExtendedPaddingTop()); 3693 } 3694 } 3695 } 3696 3697 private void registerForPreDraw() { 3698 final ViewTreeObserver observer = getViewTreeObserver(); 3699 if (observer == null) { 3700 return; 3701 } 3702 3703 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3704 observer.addOnPreDrawListener(this); 3705 mPreDrawState = PREDRAW_PENDING; 3706 } else if (mPreDrawState == PREDRAW_DONE) { 3707 mPreDrawState = PREDRAW_PENDING; 3708 } 3709 3710 // else state is PREDRAW_PENDING, so keep waiting. 3711 } 3712 3713 /** 3714 * {@inheritDoc} 3715 */ 3716 public boolean onPreDraw() { 3717 if (mPreDrawState != PREDRAW_PENDING) { 3718 return true; 3719 } 3720 3721 if (mLayout == null) { 3722 assumeLayout(); 3723 } 3724 3725 boolean changed = false; 3726 3727 SelectionModifierCursorController selectionController = null; 3728 if (mSelectionModifierCursorController != null) { 3729 selectionController = (SelectionModifierCursorController) 3730 mSelectionModifierCursorController; 3731 } 3732 3733 3734 if (mMovement != null) { 3735 /* This code also provides auto-scrolling when a cursor is moved using a 3736 * CursorController (insertion point or selection limits). 3737 * For selection, ensure start or end is visible depending on controller's state. 3738 */ 3739 int curs = getSelectionEnd(); 3740 if (selectionController != null && selectionController.isSelectionStartDragged()) { 3741 curs = getSelectionStart(); 3742 } 3743 3744 /* 3745 * TODO: This should really only keep the end in view if 3746 * it already was before the text changed. I'm not sure 3747 * of a good way to tell from here if it was. 3748 */ 3749 if (curs < 0 && 3750 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3751 curs = mText.length(); 3752 } 3753 3754 if (curs >= 0) { 3755 changed = bringPointIntoView(curs); 3756 } 3757 } else { 3758 changed = bringTextIntoView(); 3759 } 3760 3761 // This has to be checked here since: 3762 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3763 // a screen rotation) since layout is not yet initialized at that point. 3764 // - ExtractEditText does not call onFocus when it is displayed. Fixing this issue would 3765 // allow to test for hasSelection in onFocusChanged, which would trigger a 3766 // startTextSelectionMode here. TODO 3767 if (mCreatedWithASelection || 3768 (this instanceof ExtractEditText && selectionController != null && hasSelection())) { 3769 startTextSelectionMode(); 3770 mCreatedWithASelection = false; 3771 } 3772 3773 mPreDrawState = PREDRAW_DONE; 3774 return !changed; 3775 } 3776 3777 @Override 3778 protected void onAttachedToWindow() { 3779 super.onAttachedToWindow(); 3780 3781 mTemporaryDetach = false; 3782 3783 if (mShowErrorAfterAttach) { 3784 showError(); 3785 mShowErrorAfterAttach = false; 3786 } 3787 3788 final ViewTreeObserver observer = getViewTreeObserver(); 3789 if (observer != null) { 3790 if (mInsertionPointCursorController != null) { 3791 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 3792 } 3793 if (mSelectionModifierCursorController != null) { 3794 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 3795 } 3796 } 3797 } 3798 3799 @Override 3800 protected void onDetachedFromWindow() { 3801 super.onDetachedFromWindow(); 3802 3803 final ViewTreeObserver observer = getViewTreeObserver(); 3804 if (observer != null) { 3805 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 3806 observer.removeOnPreDrawListener(this); 3807 mPreDrawState = PREDRAW_NOT_REGISTERED; 3808 } 3809 if (mInsertionPointCursorController != null) { 3810 observer.removeOnTouchModeChangeListener(mInsertionPointCursorController); 3811 } 3812 if (mSelectionModifierCursorController != null) { 3813 observer.removeOnTouchModeChangeListener(mSelectionModifierCursorController); 3814 } 3815 } 3816 3817 if (mError != null) { 3818 hideError(); 3819 } 3820 3821 if (mBlink != null) { 3822 mBlink.cancel(); 3823 } 3824 3825 if (mInsertionPointCursorController != null) { 3826 mInsertionPointCursorController.onDetached(); 3827 } 3828 3829 if (mSelectionModifierCursorController != null) { 3830 mSelectionModifierCursorController.onDetached(); 3831 } 3832 3833 hideControllers(); 3834 } 3835 3836 @Override 3837 protected boolean isPaddingOffsetRequired() { 3838 return mShadowRadius != 0 || mDrawables != null; 3839 } 3840 3841 @Override 3842 protected int getLeftPaddingOffset() { 3843 return getCompoundPaddingLeft() - mPaddingLeft + 3844 (int) Math.min(0, mShadowDx - mShadowRadius); 3845 } 3846 3847 @Override 3848 protected int getTopPaddingOffset() { 3849 return (int) Math.min(0, mShadowDy - mShadowRadius); 3850 } 3851 3852 @Override 3853 protected int getBottomPaddingOffset() { 3854 return (int) Math.max(0, mShadowDy + mShadowRadius); 3855 } 3856 3857 @Override 3858 protected int getRightPaddingOffset() { 3859 return -(getCompoundPaddingRight() - mPaddingRight) + 3860 (int) Math.max(0, mShadowDx + mShadowRadius); 3861 } 3862 3863 @Override 3864 protected boolean verifyDrawable(Drawable who) { 3865 final boolean verified = super.verifyDrawable(who); 3866 if (!verified && mDrawables != null) { 3867 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 3868 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 3869 } 3870 return verified; 3871 } 3872 3873 @Override 3874 public void invalidateDrawable(Drawable drawable) { 3875 if (verifyDrawable(drawable)) { 3876 final Rect dirty = drawable.getBounds(); 3877 int scrollX = mScrollX; 3878 int scrollY = mScrollY; 3879 3880 // IMPORTANT: The coordinates below are based on the coordinates computed 3881 // for each compound drawable in onDraw(). Make sure to update each section 3882 // accordingly. 3883 final TextView.Drawables drawables = mDrawables; 3884 if (drawables != null) { 3885 if (drawable == drawables.mDrawableLeft) { 3886 final int compoundPaddingTop = getCompoundPaddingTop(); 3887 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3888 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 3889 3890 scrollX += mPaddingLeft; 3891 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 3892 } else if (drawable == drawables.mDrawableRight) { 3893 final int compoundPaddingTop = getCompoundPaddingTop(); 3894 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3895 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 3896 3897 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 3898 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 3899 } else if (drawable == drawables.mDrawableTop) { 3900 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3901 final int compoundPaddingRight = getCompoundPaddingRight(); 3902 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 3903 3904 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 3905 scrollY += mPaddingTop; 3906 } else if (drawable == drawables.mDrawableBottom) { 3907 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3908 final int compoundPaddingRight = getCompoundPaddingRight(); 3909 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 3910 3911 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 3912 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 3913 } 3914 } 3915 3916 invalidate(dirty.left + scrollX, dirty.top + scrollY, 3917 dirty.right + scrollX, dirty.bottom + scrollY); 3918 } 3919 } 3920 3921 @Override 3922 protected void onDraw(Canvas canvas) { 3923 restartMarqueeIfNeeded(); 3924 3925 // Draw the background for this view 3926 super.onDraw(canvas); 3927 3928 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3929 final int compoundPaddingTop = getCompoundPaddingTop(); 3930 final int compoundPaddingRight = getCompoundPaddingRight(); 3931 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3932 final int scrollX = mScrollX; 3933 final int scrollY = mScrollY; 3934 final int right = mRight; 3935 final int left = mLeft; 3936 final int bottom = mBottom; 3937 final int top = mTop; 3938 3939 final Drawables dr = mDrawables; 3940 if (dr != null) { 3941 /* 3942 * Compound, not extended, because the icon is not clipped 3943 * if the text height is smaller. 3944 */ 3945 3946 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 3947 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 3948 3949 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3950 // Make sure to update invalidateDrawable() when changing this code. 3951 if (dr.mDrawableLeft != null) { 3952 canvas.save(); 3953 canvas.translate(scrollX + mPaddingLeft, 3954 scrollY + compoundPaddingTop + 3955 (vspace - dr.mDrawableHeightLeft) / 2); 3956 dr.mDrawableLeft.draw(canvas); 3957 canvas.restore(); 3958 } 3959 3960 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3961 // Make sure to update invalidateDrawable() when changing this code. 3962 if (dr.mDrawableRight != null) { 3963 canvas.save(); 3964 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 3965 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 3966 dr.mDrawableRight.draw(canvas); 3967 canvas.restore(); 3968 } 3969 3970 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3971 // Make sure to update invalidateDrawable() when changing this code. 3972 if (dr.mDrawableTop != null) { 3973 canvas.save(); 3974 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 3975 scrollY + mPaddingTop); 3976 dr.mDrawableTop.draw(canvas); 3977 canvas.restore(); 3978 } 3979 3980 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3981 // Make sure to update invalidateDrawable() when changing this code. 3982 if (dr.mDrawableBottom != null) { 3983 canvas.save(); 3984 canvas.translate(scrollX + compoundPaddingLeft + 3985 (hspace - dr.mDrawableWidthBottom) / 2, 3986 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 3987 dr.mDrawableBottom.draw(canvas); 3988 canvas.restore(); 3989 } 3990 } 3991 3992 if (mPreDrawState == PREDRAW_DONE) { 3993 final ViewTreeObserver observer = getViewTreeObserver(); 3994 if (observer != null) { 3995 observer.removeOnPreDrawListener(this); 3996 mPreDrawState = PREDRAW_NOT_REGISTERED; 3997 } 3998 } 3999 4000 int color = mCurTextColor; 4001 4002 if (mLayout == null) { 4003 assumeLayout(); 4004 } 4005 4006 Layout layout = mLayout; 4007 int cursorcolor = color; 4008 4009 if (mHint != null && mText.length() == 0) { 4010 if (mHintTextColor != null) { 4011 color = mCurHintTextColor; 4012 } 4013 4014 layout = mHintLayout; 4015 } 4016 4017 mTextPaint.setColor(color); 4018 mTextPaint.drawableState = getDrawableState(); 4019 4020 canvas.save(); 4021 /* Would be faster if we didn't have to do this. Can we chop the 4022 (displayable) text so that we don't need to do this ever? 4023 */ 4024 4025 int extendedPaddingTop = getExtendedPaddingTop(); 4026 int extendedPaddingBottom = getExtendedPaddingBottom(); 4027 4028 float clipLeft = compoundPaddingLeft + scrollX; 4029 float clipTop = extendedPaddingTop + scrollY; 4030 float clipRight = right - left - compoundPaddingRight + scrollX; 4031 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4032 4033 if (mShadowRadius != 0) { 4034 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4035 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4036 4037 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4038 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4039 } 4040 4041 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4042 4043 int voffsetText = 0; 4044 int voffsetCursor = 0; 4045 4046 // translate in by our padding 4047 { 4048 /* shortcircuit calling getVerticaOffset() */ 4049 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4050 voffsetText = getVerticalOffset(false); 4051 voffsetCursor = getVerticalOffset(true); 4052 } 4053 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4054 } 4055 4056 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4057 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4058 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4059 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4060 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4061 } 4062 4063 if (mMarquee != null && mMarquee.isRunning()) { 4064 canvas.translate(-mMarquee.mScroll, 0.0f); 4065 } 4066 } 4067 4068 Path highlight = null; 4069 int selStart = -1, selEnd = -1; 4070 4071 // If there is no movement method, then there can be no selection. 4072 // Check that first and attempt to skip everything having to do with 4073 // the cursor. 4074 // XXX This is not strictly true -- a program could set the 4075 // selection manually if it really wanted to. 4076 if (mMovement != null && (isFocused() || isPressed())) { 4077 selStart = getSelectionStart(); 4078 selEnd = getSelectionEnd(); 4079 4080 if (mCursorVisible && selStart >= 0 && isEnabled()) { 4081 if (mHighlightPath == null) 4082 mHighlightPath = new Path(); 4083 4084 if (selStart == selEnd) { 4085 if ((SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4086 if (mHighlightPathBogus) { 4087 mHighlightPath.reset(); 4088 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4089 mHighlightPathBogus = false; 4090 } 4091 4092 // XXX should pass to skin instead of drawing directly 4093 mHighlightPaint.setColor(cursorcolor); 4094 mHighlightPaint.setStyle(Paint.Style.STROKE); 4095 4096 highlight = mHighlightPath; 4097 } 4098 } else { 4099 if (mHighlightPathBogus) { 4100 mHighlightPath.reset(); 4101 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4102 mHighlightPathBogus = false; 4103 } 4104 4105 // XXX should pass to skin instead of drawing directly 4106 mHighlightPaint.setColor(mHighlightColor); 4107 mHighlightPaint.setStyle(Paint.Style.FILL); 4108 4109 highlight = mHighlightPath; 4110 } 4111 } 4112 } 4113 4114 /* Comment out until we decide what to do about animations 4115 boolean isLinearTextOn = false; 4116 if (currentTransformation != null) { 4117 isLinearTextOn = mTextPaint.isLinearTextOn(); 4118 Matrix m = currentTransformation.getMatrix(); 4119 if (!m.isIdentity()) { 4120 // mTextPaint.setLinearTextOn(true); 4121 } 4122 } 4123 */ 4124 4125 final InputMethodState ims = mInputMethodState; 4126 if (ims != null && ims.mBatchEditNesting == 0) { 4127 InputMethodManager imm = InputMethodManager.peekInstance(); 4128 if (imm != null) { 4129 if (imm.isActive(this)) { 4130 boolean reported = false; 4131 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4132 // We are in extract mode and the content has changed 4133 // in some way... just report complete new text to the 4134 // input method. 4135 reported = reportExtractedText(); 4136 } 4137 if (!reported && highlight != null) { 4138 int candStart = -1; 4139 int candEnd = -1; 4140 if (mText instanceof Spannable) { 4141 Spannable sp = (Spannable)mText; 4142 candStart = EditableInputConnection.getComposingSpanStart(sp); 4143 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4144 } 4145 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4146 } 4147 } 4148 4149 if (imm.isWatchingCursor(this) && highlight != null) { 4150 highlight.computeBounds(ims.mTmpRectF, true); 4151 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4152 4153 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4154 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4155 4156 ims.mTmpRectF.offset(0, voffsetCursor - voffsetText); 4157 4158 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4159 (int)(ims.mTmpRectF.top + 0.5), 4160 (int)(ims.mTmpRectF.right + 0.5), 4161 (int)(ims.mTmpRectF.bottom + 0.5)); 4162 4163 imm.updateCursor(this, 4164 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4165 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4166 } 4167 } 4168 } 4169 4170 layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText); 4171 4172 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4173 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4174 layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText); 4175 } 4176 4177 /* Comment out until we decide what to do about animations 4178 if (currentTransformation != null) { 4179 mTextPaint.setLinearTextOn(isLinearTextOn); 4180 } 4181 */ 4182 4183 canvas.restore(); 4184 4185 updateCursorControllerPositions(); 4186 } 4187 4188 /** 4189 * Update the positions of the CursorControllers. Needed by WebTextView, 4190 * which does not draw. 4191 * @hide 4192 */ 4193 protected void updateCursorControllerPositions() { 4194 if (mInsertionPointCursorController != null && 4195 mInsertionPointCursorController.isShowing()) { 4196 mInsertionPointCursorController.updatePosition(); 4197 } 4198 4199 if (mSelectionModifierCursorController != null && 4200 mSelectionModifierCursorController.isShowing()) { 4201 mSelectionModifierCursorController.updatePosition(); 4202 } 4203 } 4204 4205 @Override 4206 public void getFocusedRect(Rect r) { 4207 if (mLayout == null) { 4208 super.getFocusedRect(r); 4209 return; 4210 } 4211 4212 int sel = getSelectionEnd(); 4213 if (sel < 0) { 4214 super.getFocusedRect(r); 4215 return; 4216 } 4217 4218 int line = mLayout.getLineForOffset(sel); 4219 r.top = mLayout.getLineTop(line); 4220 r.bottom = mLayout.getLineBottom(line); 4221 4222 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4223 r.right = r.left + 1; 4224 4225 // Adjust for padding and gravity. 4226 int paddingLeft = getCompoundPaddingLeft(); 4227 int paddingTop = getExtendedPaddingTop(); 4228 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4229 paddingTop += getVerticalOffset(false); 4230 } 4231 r.offset(paddingLeft, paddingTop); 4232 } 4233 4234 /** 4235 * Return the number of lines of text, or 0 if the internal Layout has not 4236 * been built. 4237 */ 4238 public int getLineCount() { 4239 return mLayout != null ? mLayout.getLineCount() : 0; 4240 } 4241 4242 /** 4243 * Return the baseline for the specified line (0...getLineCount() - 1) 4244 * If bounds is not null, return the top, left, right, bottom extents 4245 * of the specified line in it. If the internal Layout has not been built, 4246 * return 0 and set bounds to (0, 0, 0, 0) 4247 * @param line which line to examine (0..getLineCount() - 1) 4248 * @param bounds Optional. If not null, it returns the extent of the line 4249 * @return the Y-coordinate of the baseline 4250 */ 4251 public int getLineBounds(int line, Rect bounds) { 4252 if (mLayout == null) { 4253 if (bounds != null) { 4254 bounds.set(0, 0, 0, 0); 4255 } 4256 return 0; 4257 } 4258 else { 4259 int baseline = mLayout.getLineBounds(line, bounds); 4260 4261 int voffset = getExtendedPaddingTop(); 4262 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4263 voffset += getVerticalOffset(true); 4264 } 4265 if (bounds != null) { 4266 bounds.offset(getCompoundPaddingLeft(), voffset); 4267 } 4268 return baseline + voffset; 4269 } 4270 } 4271 4272 @Override 4273 public int getBaseline() { 4274 if (mLayout == null) { 4275 return super.getBaseline(); 4276 } 4277 4278 int voffset = 0; 4279 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4280 voffset = getVerticalOffset(true); 4281 } 4282 4283 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4284 } 4285 4286 @Override 4287 public boolean onKeyDown(int keyCode, KeyEvent event) { 4288 int which = doKeyDown(keyCode, event, null); 4289 if (which == 0) { 4290 // Go through default dispatching. 4291 return super.onKeyDown(keyCode, event); 4292 } 4293 4294 return true; 4295 } 4296 4297 @Override 4298 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4299 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4300 4301 int which = doKeyDown(keyCode, down, event); 4302 if (which == 0) { 4303 // Go through default dispatching. 4304 return super.onKeyMultiple(keyCode, repeatCount, event); 4305 } 4306 if (which == -1) { 4307 // Consumed the whole thing. 4308 return true; 4309 } 4310 4311 repeatCount--; 4312 4313 // We are going to dispatch the remaining events to either the input 4314 // or movement method. To do this, we will just send a repeated stream 4315 // of down and up events until we have done the complete repeatCount. 4316 // It would be nice if those interfaces had an onKeyMultiple() method, 4317 // but adding that is a more complicated change. 4318 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4319 if (which == 1) { 4320 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4321 while (--repeatCount > 0) { 4322 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4323 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4324 } 4325 if (mError != null && !mErrorWasChanged) { 4326 setError(null, null); 4327 } 4328 4329 } else if (which == 2) { 4330 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4331 while (--repeatCount > 0) { 4332 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4333 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4334 } 4335 } 4336 4337 return true; 4338 } 4339 4340 /** 4341 * Returns true if pressing ENTER in this field advances focus instead 4342 * of inserting the character. This is true mostly in single-line fields, 4343 * but also in mail addresses and subjects which will display on multiple 4344 * lines but where it doesn't make sense to insert newlines. 4345 */ 4346 private boolean shouldAdvanceFocusOnEnter() { 4347 if (mInput == null) { 4348 return false; 4349 } 4350 4351 if (mSingleLine) { 4352 return true; 4353 } 4354 4355 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4356 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4357 4358 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 4359 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4360 return true; 4361 } 4362 } 4363 4364 return false; 4365 } 4366 4367 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4368 if (!isEnabled()) { 4369 return 0; 4370 } 4371 4372 switch (keyCode) { 4373 case KeyEvent.KEYCODE_ENTER: 4374 mEnterKeyIsDown = true; 4375 // If ALT modifier is held, then we always insert a 4376 // newline character. 4377 if ((event.getMetaState()&KeyEvent.META_ALT_ON) == 0) { 4378 4379 // When mInputContentType is set, we know that we are 4380 // running in a "modern" cupcake environment, so don't need 4381 // to worry about the application trying to capture 4382 // enter key events. 4383 if (mInputContentType != null) { 4384 4385 // If there is an action listener, given them a 4386 // chance to consume the event. 4387 if (mInputContentType.onEditorActionListener != null && 4388 mInputContentType.onEditorActionListener.onEditorAction( 4389 this, EditorInfo.IME_NULL, event)) { 4390 mInputContentType.enterDown = true; 4391 // We are consuming the enter key for them. 4392 return -1; 4393 } 4394 } 4395 4396 // If our editor should move focus when enter is pressed, or 4397 // this is a generated event from an IME action button, then 4398 // don't let it be inserted into the text. 4399 if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0 4400 || shouldAdvanceFocusOnEnter()) { 4401 return -1; 4402 } 4403 } 4404 break; 4405 4406 case KeyEvent.KEYCODE_DPAD_CENTER: 4407 mDPadCenterIsDown = true; 4408 if (shouldAdvanceFocusOnEnter()) { 4409 return 0; 4410 } 4411 break; 4412 4413 // Has to be done on key down (and not on key up) to correctly be intercepted. 4414 case KeyEvent.KEYCODE_BACK: 4415 if (mIsInTextSelectionMode) { 4416 stopTextSelectionMode(); 4417 return -1; 4418 } 4419 break; 4420 } 4421 4422 if (mInput != null) { 4423 /* 4424 * Keep track of what the error was before doing the input 4425 * so that if an input filter changed the error, we leave 4426 * that error showing. Otherwise, we take down whatever 4427 * error was showing when the user types something. 4428 */ 4429 mErrorWasChanged = false; 4430 4431 boolean doDown = true; 4432 if (otherEvent != null) { 4433 try { 4434 beginBatchEdit(); 4435 boolean handled = mInput.onKeyOther(this, (Editable) mText, 4436 otherEvent); 4437 if (mError != null && !mErrorWasChanged) { 4438 setError(null, null); 4439 } 4440 doDown = false; 4441 if (handled) { 4442 return -1; 4443 } 4444 } catch (AbstractMethodError e) { 4445 // onKeyOther was added after 1.0, so if it isn't 4446 // implemented we need to try to dispatch as a regular down. 4447 } finally { 4448 endBatchEdit(); 4449 } 4450 } 4451 4452 if (doDown) { 4453 beginBatchEdit(); 4454 if (mInput.onKeyDown(this, (Editable) mText, keyCode, event)) { 4455 endBatchEdit(); 4456 if (mError != null && !mErrorWasChanged) { 4457 setError(null, null); 4458 } 4459 return 1; 4460 } 4461 endBatchEdit(); 4462 } 4463 } 4464 4465 // bug 650865: sometimes we get a key event before a layout. 4466 // don't try to move around if we don't know the layout. 4467 4468 if (mMovement != null && mLayout != null) { 4469 boolean doDown = true; 4470 if (otherEvent != null) { 4471 try { 4472 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4473 otherEvent); 4474 doDown = false; 4475 if (handled) { 4476 return -1; 4477 } 4478 } catch (AbstractMethodError e) { 4479 // onKeyOther was added after 1.0, so if it isn't 4480 // implemented we need to try to dispatch as a regular down. 4481 } 4482 } 4483 if (doDown) { 4484 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4485 return 2; 4486 } 4487 } 4488 4489 return 0; 4490 } 4491 4492 @Override 4493 public boolean onKeyUp(int keyCode, KeyEvent event) { 4494 if (!isEnabled()) { 4495 return super.onKeyUp(keyCode, event); 4496 } 4497 4498 hideControllers(); 4499 stopTextSelectionMode(); 4500 4501 switch (keyCode) { 4502 case KeyEvent.KEYCODE_DPAD_CENTER: 4503 mDPadCenterIsDown = false; 4504 /* 4505 * If there is a click listener, just call through to 4506 * super, which will invoke it. 4507 * 4508 * If there isn't a click listener, try to show the soft 4509 * input method. (It will also 4510 * call performClick(), but that won't do anything in 4511 * this case.) 4512 */ 4513 if (mOnClickListener == null) { 4514 if (mMovement != null && mText instanceof Editable 4515 && mLayout != null && onCheckIsTextEditor()) { 4516 InputMethodManager imm = (InputMethodManager) 4517 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 4518 imm.showSoftInput(this, 0); 4519 } 4520 } 4521 return super.onKeyUp(keyCode, event); 4522 4523 case KeyEvent.KEYCODE_ENTER: 4524 mEnterKeyIsDown = false; 4525 if (mInputContentType != null 4526 && mInputContentType.onEditorActionListener != null 4527 && mInputContentType.enterDown) { 4528 mInputContentType.enterDown = false; 4529 if (mInputContentType.onEditorActionListener.onEditorAction( 4530 this, EditorInfo.IME_NULL, event)) { 4531 return true; 4532 } 4533 } 4534 4535 if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0 4536 || shouldAdvanceFocusOnEnter()) { 4537 /* 4538 * If there is a click listener, just call through to 4539 * super, which will invoke it. 4540 * 4541 * If there isn't a click listener, try to advance focus, 4542 * but still call through to super, which will reset the 4543 * pressed state and longpress state. (It will also 4544 * call performClick(), but that won't do anything in 4545 * this case.) 4546 */ 4547 if (mOnClickListener == null) { 4548 View v = focusSearch(FOCUS_DOWN); 4549 4550 if (v != null) { 4551 if (!v.requestFocus(FOCUS_DOWN)) { 4552 throw new IllegalStateException("focus search returned a view " + 4553 "that wasn't able to take focus!"); 4554 } 4555 4556 /* 4557 * Return true because we handled the key; super 4558 * will return false because there was no click 4559 * listener. 4560 */ 4561 super.onKeyUp(keyCode, event); 4562 return true; 4563 } else if ((event.getFlags() 4564 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4565 // No target for next focus, but make sure the IME 4566 // if this came from it. 4567 InputMethodManager imm = InputMethodManager.peekInstance(); 4568 if (imm != null) { 4569 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4570 } 4571 } 4572 } 4573 4574 return super.onKeyUp(keyCode, event); 4575 } 4576 break; 4577 } 4578 4579 if (mInput != null) 4580 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4581 return true; 4582 4583 if (mMovement != null && mLayout != null) 4584 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4585 return true; 4586 4587 return super.onKeyUp(keyCode, event); 4588 } 4589 4590 @Override public boolean onCheckIsTextEditor() { 4591 return mInputType != EditorInfo.TYPE_NULL; 4592 } 4593 4594 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4595 if (onCheckIsTextEditor()) { 4596 if (mInputMethodState == null) { 4597 mInputMethodState = new InputMethodState(); 4598 } 4599 outAttrs.inputType = mInputType; 4600 if (mInputContentType != null) { 4601 outAttrs.imeOptions = mInputContentType.imeOptions; 4602 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 4603 outAttrs.actionLabel = mInputContentType.imeActionLabel; 4604 outAttrs.actionId = mInputContentType.imeActionId; 4605 outAttrs.extras = mInputContentType.extras; 4606 } else { 4607 outAttrs.imeOptions = EditorInfo.IME_NULL; 4608 } 4609 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 4610 == EditorInfo.IME_ACTION_UNSPECIFIED) { 4611 if (focusSearch(FOCUS_DOWN) != null) { 4612 // An action has not been set, but the enter key will move to 4613 // the next focus, so set the action to that. 4614 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 4615 } else { 4616 // An action has not been set, and there is no focus to move 4617 // to, so let's just supply a "done" action. 4618 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 4619 } 4620 if (!shouldAdvanceFocusOnEnter()) { 4621 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4622 } 4623 } 4624 if ((outAttrs.inputType & (InputType.TYPE_MASK_CLASS 4625 | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) 4626 == (InputType.TYPE_CLASS_TEXT 4627 | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) { 4628 // Multi-line text editors should always show an enter key. 4629 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4630 } 4631 outAttrs.hintText = mHint; 4632 if (mText instanceof Editable) { 4633 InputConnection ic = new EditableInputConnection(this); 4634 outAttrs.initialSelStart = getSelectionStart(); 4635 outAttrs.initialSelEnd = getSelectionEnd(); 4636 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 4637 return ic; 4638 } 4639 } 4640 return null; 4641 } 4642 4643 /** 4644 * If this TextView contains editable content, extract a portion of it 4645 * based on the information in <var>request</var> in to <var>outText</var>. 4646 * @return Returns true if the text was successfully extracted, else false. 4647 */ 4648 public boolean extractText(ExtractedTextRequest request, 4649 ExtractedText outText) { 4650 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 4651 EXTRACT_UNKNOWN, outText); 4652 } 4653 4654 static final int EXTRACT_NOTHING = -2; 4655 static final int EXTRACT_UNKNOWN = -1; 4656 4657 boolean extractTextInternal(ExtractedTextRequest request, 4658 int partialStartOffset, int partialEndOffset, int delta, 4659 ExtractedText outText) { 4660 final CharSequence content = mText; 4661 if (content != null) { 4662 if (partialStartOffset != EXTRACT_NOTHING) { 4663 final int N = content.length(); 4664 if (partialStartOffset < 0) { 4665 outText.partialStartOffset = outText.partialEndOffset = -1; 4666 partialStartOffset = 0; 4667 partialEndOffset = N; 4668 } else { 4669 // Adjust offsets to ensure we contain full spans. 4670 if (content instanceof Spanned) { 4671 Spanned spanned = (Spanned)content; 4672 Object[] spans = spanned.getSpans(partialStartOffset, 4673 partialEndOffset, ParcelableSpan.class); 4674 int i = spans.length; 4675 while (i > 0) { 4676 i--; 4677 int j = spanned.getSpanStart(spans[i]); 4678 if (j < partialStartOffset) partialStartOffset = j; 4679 j = spanned.getSpanEnd(spans[i]); 4680 if (j > partialEndOffset) partialEndOffset = j; 4681 } 4682 } 4683 outText.partialStartOffset = partialStartOffset; 4684 outText.partialEndOffset = partialEndOffset; 4685 // Now use the delta to determine the actual amount of text 4686 // we need. 4687 partialEndOffset += delta; 4688 if (partialStartOffset > N) { 4689 partialStartOffset = N; 4690 } else if (partialStartOffset < 0) { 4691 partialStartOffset = 0; 4692 } 4693 if (partialEndOffset > N) { 4694 partialEndOffset = N; 4695 } else if (partialEndOffset < 0) { 4696 partialEndOffset = 0; 4697 } 4698 } 4699 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 4700 outText.text = content.subSequence(partialStartOffset, 4701 partialEndOffset); 4702 } else { 4703 outText.text = TextUtils.substring(content, partialStartOffset, 4704 partialEndOffset); 4705 } 4706 } else { 4707 outText.partialStartOffset = 0; 4708 outText.partialEndOffset = 0; 4709 outText.text = ""; 4710 } 4711 outText.flags = 0; 4712 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 4713 outText.flags |= ExtractedText.FLAG_SELECTING; 4714 } 4715 if (mSingleLine) { 4716 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 4717 } 4718 outText.startOffset = 0; 4719 outText.selectionStart = getSelectionStart(); 4720 outText.selectionEnd = getSelectionEnd(); 4721 return true; 4722 } 4723 return false; 4724 } 4725 4726 boolean reportExtractedText() { 4727 final InputMethodState ims = mInputMethodState; 4728 if (ims != null) { 4729 final boolean contentChanged = ims.mContentChanged; 4730 if (contentChanged || ims.mSelectionModeChanged) { 4731 ims.mContentChanged = false; 4732 ims.mSelectionModeChanged = false; 4733 final ExtractedTextRequest req = mInputMethodState.mExtracting; 4734 if (req != null) { 4735 InputMethodManager imm = InputMethodManager.peekInstance(); 4736 if (imm != null) { 4737 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 4738 + ims.mChangedStart + " end=" + ims.mChangedEnd 4739 + " delta=" + ims.mChangedDelta); 4740 if (ims.mChangedStart < 0 && !contentChanged) { 4741 ims.mChangedStart = EXTRACT_NOTHING; 4742 } 4743 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 4744 ims.mChangedDelta, ims.mTmpExtracted)) { 4745 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 4746 + ims.mTmpExtracted.partialStartOffset 4747 + " end=" + ims.mTmpExtracted.partialEndOffset 4748 + ": " + ims.mTmpExtracted.text); 4749 imm.updateExtractedText(this, req.token, 4750 mInputMethodState.mTmpExtracted); 4751 return true; 4752 } 4753 } 4754 } 4755 } 4756 } 4757 return false; 4758 } 4759 4760 /** 4761 * This is used to remove all style-impacting spans from text before new 4762 * extracted text is being replaced into it, so that we don't have any 4763 * lingering spans applied during the replace. 4764 */ 4765 static void removeParcelableSpans(Spannable spannable, int start, int end) { 4766 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 4767 int i = spans.length; 4768 while (i > 0) { 4769 i--; 4770 spannable.removeSpan(spans[i]); 4771 } 4772 } 4773 4774 /** 4775 * Apply to this text view the given extracted text, as previously 4776 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 4777 */ 4778 public void setExtractedText(ExtractedText text) { 4779 Editable content = getEditableText(); 4780 if (text.text != null) { 4781 if (content == null) { 4782 setText(text.text, TextView.BufferType.EDITABLE); 4783 } else if (text.partialStartOffset < 0) { 4784 removeParcelableSpans(content, 0, content.length()); 4785 content.replace(0, content.length(), text.text); 4786 } else { 4787 final int N = content.length(); 4788 int start = text.partialStartOffset; 4789 if (start > N) start = N; 4790 int end = text.partialEndOffset; 4791 if (end > N) end = N; 4792 removeParcelableSpans(content, start, end); 4793 content.replace(start, end, text.text); 4794 } 4795 } 4796 4797 // Now set the selection position... make sure it is in range, to 4798 // avoid crashes. If this is a partial update, it is possible that 4799 // the underlying text may have changed, causing us problems here. 4800 // Also we just don't want to trust clients to do the right thing. 4801 Spannable sp = (Spannable)getText(); 4802 final int N = sp.length(); 4803 int start = text.selectionStart; 4804 if (start < 0) start = 0; 4805 else if (start > N) start = N; 4806 int end = text.selectionEnd; 4807 if (end < 0) end = 0; 4808 else if (end > N) end = N; 4809 Selection.setSelection(sp, start, end); 4810 4811 // Finally, update the selection mode. 4812 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 4813 MetaKeyKeyListener.startSelecting(this, sp); 4814 } else { 4815 MetaKeyKeyListener.stopSelecting(this, sp); 4816 } 4817 } 4818 4819 /** 4820 * @hide 4821 */ 4822 public void setExtracting(ExtractedTextRequest req) { 4823 if (mInputMethodState != null) { 4824 mInputMethodState.mExtracting = req; 4825 } 4826 hideControllers(); 4827 } 4828 4829 /** 4830 * Called by the framework in response to a text completion from 4831 * the current input method, provided by it calling 4832 * {@link InputConnection#commitCompletion 4833 * InputConnection.commitCompletion()}. The default implementation does 4834 * nothing; text views that are supporting auto-completion should override 4835 * this to do their desired behavior. 4836 * 4837 * @param text The auto complete text the user has selected. 4838 */ 4839 public void onCommitCompletion(CompletionInfo text) { 4840 } 4841 4842 public void beginBatchEdit() { 4843 mInBatchEditControllers = true; 4844 final InputMethodState ims = mInputMethodState; 4845 if (ims != null) { 4846 int nesting = ++ims.mBatchEditNesting; 4847 if (nesting == 1) { 4848 ims.mCursorChanged = false; 4849 ims.mChangedDelta = 0; 4850 if (ims.mContentChanged) { 4851 // We already have a pending change from somewhere else, 4852 // so turn this into a full update. 4853 ims.mChangedStart = 0; 4854 ims.mChangedEnd = mText.length(); 4855 } else { 4856 ims.mChangedStart = EXTRACT_UNKNOWN; 4857 ims.mChangedEnd = EXTRACT_UNKNOWN; 4858 ims.mContentChanged = false; 4859 } 4860 onBeginBatchEdit(); 4861 } 4862 } 4863 } 4864 4865 public void endBatchEdit() { 4866 mInBatchEditControllers = false; 4867 final InputMethodState ims = mInputMethodState; 4868 if (ims != null) { 4869 int nesting = --ims.mBatchEditNesting; 4870 if (nesting == 0) { 4871 finishBatchEdit(ims); 4872 } 4873 } 4874 } 4875 4876 void ensureEndedBatchEdit() { 4877 final InputMethodState ims = mInputMethodState; 4878 if (ims != null && ims.mBatchEditNesting != 0) { 4879 ims.mBatchEditNesting = 0; 4880 finishBatchEdit(ims); 4881 } 4882 } 4883 4884 void finishBatchEdit(final InputMethodState ims) { 4885 onEndBatchEdit(); 4886 4887 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4888 updateAfterEdit(); 4889 reportExtractedText(); 4890 } else if (ims.mCursorChanged) { 4891 // Cheezy way to get us to report the current cursor location. 4892 invalidateCursor(); 4893 } 4894 } 4895 4896 void updateAfterEdit() { 4897 invalidate(); 4898 int curs = getSelectionStart(); 4899 4900 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == 4901 Gravity.BOTTOM) { 4902 registerForPreDraw(); 4903 } 4904 4905 if (curs >= 0) { 4906 mHighlightPathBogus = true; 4907 4908 if (isFocused()) { 4909 mShowCursor = SystemClock.uptimeMillis(); 4910 makeBlink(); 4911 } 4912 } 4913 4914 checkForResize(); 4915 } 4916 4917 /** 4918 * Called by the framework in response to a request to begin a batch 4919 * of edit operations through a call to link {@link #beginBatchEdit()}. 4920 */ 4921 public void onBeginBatchEdit() { 4922 } 4923 4924 /** 4925 * Called by the framework in response to a request to end a batch 4926 * of edit operations through a call to link {@link #endBatchEdit}. 4927 */ 4928 public void onEndBatchEdit() { 4929 } 4930 4931 /** 4932 * Called by the framework in response to a private command from the 4933 * current method, provided by it calling 4934 * {@link InputConnection#performPrivateCommand 4935 * InputConnection.performPrivateCommand()}. 4936 * 4937 * @param action The action name of the command. 4938 * @param data Any additional data for the command. This may be null. 4939 * @return Return true if you handled the command, else false. 4940 */ 4941 public boolean onPrivateIMECommand(String action, Bundle data) { 4942 return false; 4943 } 4944 4945 private void nullLayouts() { 4946 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 4947 mSavedLayout = (BoringLayout) mLayout; 4948 } 4949 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 4950 mSavedHintLayout = (BoringLayout) mHintLayout; 4951 } 4952 4953 mLayout = mHintLayout = null; 4954 } 4955 4956 /** 4957 * Make a new Layout based on the already-measured size of the view, 4958 * on the assumption that it was measured correctly at some point. 4959 */ 4960 private void assumeLayout() { 4961 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 4962 4963 if (width < 1) { 4964 width = 0; 4965 } 4966 4967 int physicalWidth = width; 4968 4969 if (mHorizontallyScrolling) { 4970 width = VERY_WIDE; 4971 } 4972 4973 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 4974 physicalWidth, false); 4975 } 4976 4977 /** 4978 * The width passed in is now the desired layout width, 4979 * not the full view width with padding. 4980 * {@hide} 4981 */ 4982 protected void makeNewLayout(int w, int hintWidth, 4983 BoringLayout.Metrics boring, 4984 BoringLayout.Metrics hintBoring, 4985 int ellipsisWidth, boolean bringIntoView) { 4986 stopMarquee(); 4987 4988 mHighlightPathBogus = true; 4989 4990 if (w < 0) { 4991 w = 0; 4992 } 4993 if (hintWidth < 0) { 4994 hintWidth = 0; 4995 } 4996 4997 Layout.Alignment alignment; 4998 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 4999 case Gravity.CENTER_HORIZONTAL: 5000 alignment = Layout.Alignment.ALIGN_CENTER; 5001 break; 5002 5003 case Gravity.RIGHT: 5004 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5005 break; 5006 5007 default: 5008 alignment = Layout.Alignment.ALIGN_NORMAL; 5009 } 5010 5011 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5012 5013 if (mText instanceof Spannable) { 5014 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5015 alignment, mSpacingMult, 5016 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5017 ellipsisWidth); 5018 } else { 5019 if (boring == UNKNOWN_BORING) { 5020 boring = BoringLayout.isBoring(mTransformed, mTextPaint, 5021 mBoring); 5022 if (boring != null) { 5023 mBoring = boring; 5024 } 5025 } 5026 5027 if (boring != null) { 5028 if (boring.width <= w && 5029 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5030 if (mSavedLayout != null) { 5031 mLayout = mSavedLayout. 5032 replaceOrMake(mTransformed, mTextPaint, 5033 w, alignment, mSpacingMult, mSpacingAdd, 5034 boring, mIncludePad); 5035 } else { 5036 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5037 w, alignment, mSpacingMult, mSpacingAdd, 5038 boring, mIncludePad); 5039 } 5040 5041 mSavedLayout = (BoringLayout) mLayout; 5042 } else if (shouldEllipsize && boring.width <= w) { 5043 if (mSavedLayout != null) { 5044 mLayout = mSavedLayout. 5045 replaceOrMake(mTransformed, mTextPaint, 5046 w, alignment, mSpacingMult, mSpacingAdd, 5047 boring, mIncludePad, mEllipsize, 5048 ellipsisWidth); 5049 } else { 5050 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5051 w, alignment, mSpacingMult, mSpacingAdd, 5052 boring, mIncludePad, mEllipsize, 5053 ellipsisWidth); 5054 } 5055 } else if (shouldEllipsize) { 5056 mLayout = new StaticLayout(mTransformed, 5057 0, mTransformed.length(), 5058 mTextPaint, w, alignment, mSpacingMult, 5059 mSpacingAdd, mIncludePad, mEllipsize, 5060 ellipsisWidth); 5061 } else { 5062 mLayout = new StaticLayout(mTransformed, mTextPaint, 5063 w, alignment, mSpacingMult, mSpacingAdd, 5064 mIncludePad); 5065 } 5066 } else if (shouldEllipsize) { 5067 mLayout = new StaticLayout(mTransformed, 5068 0, mTransformed.length(), 5069 mTextPaint, w, alignment, mSpacingMult, 5070 mSpacingAdd, mIncludePad, mEllipsize, 5071 ellipsisWidth); 5072 } else { 5073 mLayout = new StaticLayout(mTransformed, mTextPaint, 5074 w, alignment, mSpacingMult, mSpacingAdd, 5075 mIncludePad); 5076 } 5077 } 5078 5079 shouldEllipsize = mEllipsize != null; 5080 mHintLayout = null; 5081 5082 if (mHint != null) { 5083 if (shouldEllipsize) hintWidth = w; 5084 5085 if (hintBoring == UNKNOWN_BORING) { 5086 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5087 mHintBoring); 5088 if (hintBoring != null) { 5089 mHintBoring = hintBoring; 5090 } 5091 } 5092 5093 if (hintBoring != null) { 5094 if (hintBoring.width <= hintWidth && 5095 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5096 if (mSavedHintLayout != null) { 5097 mHintLayout = mSavedHintLayout. 5098 replaceOrMake(mHint, mTextPaint, 5099 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5100 hintBoring, mIncludePad); 5101 } else { 5102 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5103 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5104 hintBoring, mIncludePad); 5105 } 5106 5107 mSavedHintLayout = (BoringLayout) mHintLayout; 5108 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5109 if (mSavedHintLayout != null) { 5110 mHintLayout = mSavedHintLayout. 5111 replaceOrMake(mHint, mTextPaint, 5112 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5113 hintBoring, mIncludePad, mEllipsize, 5114 ellipsisWidth); 5115 } else { 5116 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5117 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5118 hintBoring, mIncludePad, mEllipsize, 5119 ellipsisWidth); 5120 } 5121 } else if (shouldEllipsize) { 5122 mHintLayout = new StaticLayout(mHint, 5123 0, mHint.length(), 5124 mTextPaint, hintWidth, alignment, mSpacingMult, 5125 mSpacingAdd, mIncludePad, mEllipsize, 5126 ellipsisWidth); 5127 } else { 5128 mHintLayout = new StaticLayout(mHint, mTextPaint, 5129 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5130 mIncludePad); 5131 } 5132 } else if (shouldEllipsize) { 5133 mHintLayout = new StaticLayout(mHint, 5134 0, mHint.length(), 5135 mTextPaint, hintWidth, alignment, mSpacingMult, 5136 mSpacingAdd, mIncludePad, mEllipsize, 5137 ellipsisWidth); 5138 } else { 5139 mHintLayout = new StaticLayout(mHint, mTextPaint, 5140 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5141 mIncludePad); 5142 } 5143 } 5144 5145 if (bringIntoView) { 5146 registerForPreDraw(); 5147 } 5148 5149 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5150 if (!compressText(ellipsisWidth)) { 5151 final int height = mLayoutParams.height; 5152 // If the size of the view does not depend on the size of the text, try to 5153 // start the marquee immediately 5154 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5155 startMarquee(); 5156 } else { 5157 // Defer the start of the marquee until we know our width (see setFrame()) 5158 mRestartMarquee = true; 5159 } 5160 } 5161 } 5162 5163 // CursorControllers need a non-null mLayout 5164 prepareCursorControllers(); 5165 } 5166 5167 private boolean compressText(float width) { 5168 // Only compress the text if it hasn't been compressed by the previous pass 5169 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5170 mTextPaint.getTextScaleX() == 1.0f) { 5171 final float textWidth = mLayout.getLineWidth(0); 5172 final float overflow = (textWidth + 1.0f - width) / width; 5173 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5174 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5175 post(new Runnable() { 5176 public void run() { 5177 requestLayout(); 5178 } 5179 }); 5180 return true; 5181 } 5182 } 5183 5184 return false; 5185 } 5186 5187 private static int desired(Layout layout) { 5188 int n = layout.getLineCount(); 5189 CharSequence text = layout.getText(); 5190 float max = 0; 5191 5192 // if any line was wrapped, we can't use it. 5193 // but it's ok for the last line not to have a newline 5194 5195 for (int i = 0; i < n - 1; i++) { 5196 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5197 return -1; 5198 } 5199 5200 for (int i = 0; i < n; i++) { 5201 max = Math.max(max, layout.getLineWidth(i)); 5202 } 5203 5204 return (int) FloatMath.ceil(max); 5205 } 5206 5207 /** 5208 * Set whether the TextView includes extra top and bottom padding to make 5209 * room for accents that go above the normal ascent and descent. 5210 * The default is true. 5211 * 5212 * @attr ref android.R.styleable#TextView_includeFontPadding 5213 */ 5214 public void setIncludeFontPadding(boolean includepad) { 5215 mIncludePad = includepad; 5216 5217 if (mLayout != null) { 5218 nullLayouts(); 5219 requestLayout(); 5220 invalidate(); 5221 } 5222 } 5223 5224 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5225 5226 @Override 5227 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5228 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5229 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5230 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5231 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5232 5233 int width; 5234 int height; 5235 5236 BoringLayout.Metrics boring = UNKNOWN_BORING; 5237 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5238 5239 int des = -1; 5240 boolean fromexisting = false; 5241 5242 if (widthMode == MeasureSpec.EXACTLY) { 5243 // Parent has told us how big to be. So be it. 5244 width = widthSize; 5245 } else { 5246 if (mLayout != null && mEllipsize == null) { 5247 des = desired(mLayout); 5248 } 5249 5250 if (des < 0) { 5251 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5252 if (boring != null) { 5253 mBoring = boring; 5254 } 5255 } else { 5256 fromexisting = true; 5257 } 5258 5259 if (boring == null || boring == UNKNOWN_BORING) { 5260 if (des < 0) { 5261 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5262 } 5263 5264 width = des; 5265 } else { 5266 width = boring.width; 5267 } 5268 5269 final Drawables dr = mDrawables; 5270 if (dr != null) { 5271 width = Math.max(width, dr.mDrawableWidthTop); 5272 width = Math.max(width, dr.mDrawableWidthBottom); 5273 } 5274 5275 if (mHint != null) { 5276 int hintDes = -1; 5277 int hintWidth; 5278 5279 if (mHintLayout != null && mEllipsize == null) { 5280 hintDes = desired(mHintLayout); 5281 } 5282 5283 if (hintDes < 0) { 5284 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5285 if (hintBoring != null) { 5286 mHintBoring = hintBoring; 5287 } 5288 } 5289 5290 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5291 if (hintDes < 0) { 5292 hintDes = (int) FloatMath.ceil( 5293 Layout.getDesiredWidth(mHint, mTextPaint)); 5294 } 5295 5296 hintWidth = hintDes; 5297 } else { 5298 hintWidth = hintBoring.width; 5299 } 5300 5301 if (hintWidth > width) { 5302 width = hintWidth; 5303 } 5304 } 5305 5306 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5307 5308 if (mMaxWidthMode == EMS) { 5309 width = Math.min(width, mMaxWidth * getLineHeight()); 5310 } else { 5311 width = Math.min(width, mMaxWidth); 5312 } 5313 5314 if (mMinWidthMode == EMS) { 5315 width = Math.max(width, mMinWidth * getLineHeight()); 5316 } else { 5317 width = Math.max(width, mMinWidth); 5318 } 5319 5320 // Check against our minimum width 5321 width = Math.max(width, getSuggestedMinimumWidth()); 5322 5323 if (widthMode == MeasureSpec.AT_MOST) { 5324 width = Math.min(widthSize, width); 5325 } 5326 } 5327 5328 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5329 int unpaddedWidth = want; 5330 int hintWant = want; 5331 5332 if (mHorizontallyScrolling) 5333 want = VERY_WIDE; 5334 5335 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5336 5337 if (mLayout == null) { 5338 makeNewLayout(want, hintWant, boring, hintBoring, 5339 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5340 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5341 (mLayout.getEllipsizedWidth() != 5342 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5343 if (mHint == null && mEllipsize == null && 5344 want > mLayout.getWidth() && 5345 (mLayout instanceof BoringLayout || 5346 (fromexisting && des >= 0 && des <= want))) { 5347 mLayout.increaseWidthTo(want); 5348 } else { 5349 makeNewLayout(want, hintWant, boring, hintBoring, 5350 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5351 } 5352 } else { 5353 // Width has not changed. 5354 } 5355 5356 if (heightMode == MeasureSpec.EXACTLY) { 5357 // Parent has told us how big to be. So be it. 5358 height = heightSize; 5359 mDesiredHeightAtMeasure = -1; 5360 } else { 5361 int desired = getDesiredHeight(); 5362 5363 height = desired; 5364 mDesiredHeightAtMeasure = desired; 5365 5366 if (heightMode == MeasureSpec.AT_MOST) { 5367 height = Math.min(desired, heightSize); 5368 } 5369 } 5370 5371 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5372 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5373 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5374 } 5375 5376 /* 5377 * We didn't let makeNewLayout() register to bring the cursor into view, 5378 * so do it here if there is any possibility that it is needed. 5379 */ 5380 if (mMovement != null || 5381 mLayout.getWidth() > unpaddedWidth || 5382 mLayout.getHeight() > unpaddedHeight) { 5383 registerForPreDraw(); 5384 } else { 5385 scrollTo(0, 0); 5386 } 5387 5388 setMeasuredDimension(width, height); 5389 } 5390 5391 private int getDesiredHeight() { 5392 return Math.max( 5393 getDesiredHeight(mLayout, true), 5394 getDesiredHeight(mHintLayout, mEllipsize != null)); 5395 } 5396 5397 private int getDesiredHeight(Layout layout, boolean cap) { 5398 if (layout == null) { 5399 return 0; 5400 } 5401 5402 int linecount = layout.getLineCount(); 5403 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5404 int desired = layout.getLineTop(linecount); 5405 5406 final Drawables dr = mDrawables; 5407 if (dr != null) { 5408 desired = Math.max(desired, dr.mDrawableHeightLeft); 5409 desired = Math.max(desired, dr.mDrawableHeightRight); 5410 } 5411 5412 desired += pad; 5413 5414 if (mMaxMode == LINES) { 5415 /* 5416 * Don't cap the hint to a certain number of lines. 5417 * (Do cap it, though, if we have a maximum pixel height.) 5418 */ 5419 if (cap) { 5420 if (linecount > mMaximum) { 5421 desired = layout.getLineTop(mMaximum) + 5422 layout.getBottomPadding(); 5423 5424 if (dr != null) { 5425 desired = Math.max(desired, dr.mDrawableHeightLeft); 5426 desired = Math.max(desired, dr.mDrawableHeightRight); 5427 } 5428 5429 desired += pad; 5430 linecount = mMaximum; 5431 } 5432 } 5433 } else { 5434 desired = Math.min(desired, mMaximum); 5435 } 5436 5437 if (mMinMode == LINES) { 5438 if (linecount < mMinimum) { 5439 desired += getLineHeight() * (mMinimum - linecount); 5440 } 5441 } else { 5442 desired = Math.max(desired, mMinimum); 5443 } 5444 5445 // Check against our minimum height 5446 desired = Math.max(desired, getSuggestedMinimumHeight()); 5447 5448 return desired; 5449 } 5450 5451 /** 5452 * Check whether a change to the existing text layout requires a 5453 * new view layout. 5454 */ 5455 private void checkForResize() { 5456 boolean sizeChanged = false; 5457 5458 if (mLayout != null) { 5459 // Check if our width changed 5460 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5461 sizeChanged = true; 5462 invalidate(); 5463 } 5464 5465 // Check if our height changed 5466 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5467 int desiredHeight = getDesiredHeight(); 5468 5469 if (desiredHeight != this.getHeight()) { 5470 sizeChanged = true; 5471 } 5472 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 5473 if (mDesiredHeightAtMeasure >= 0) { 5474 int desiredHeight = getDesiredHeight(); 5475 5476 if (desiredHeight != mDesiredHeightAtMeasure) { 5477 sizeChanged = true; 5478 } 5479 } 5480 } 5481 } 5482 5483 if (sizeChanged) { 5484 requestLayout(); 5485 // caller will have already invalidated 5486 } 5487 } 5488 5489 /** 5490 * Check whether entirely new text requires a new view layout 5491 * or merely a new text layout. 5492 */ 5493 private void checkForRelayout() { 5494 // If we have a fixed width, we can just swap in a new text layout 5495 // if the text height stays the same or if the view height is fixed. 5496 5497 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 5498 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 5499 (mHint == null || mHintLayout != null) && 5500 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 5501 // Static width, so try making a new text layout. 5502 5503 int oldht = mLayout.getHeight(); 5504 int want = mLayout.getWidth(); 5505 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 5506 5507 /* 5508 * No need to bring the text into view, since the size is not 5509 * changing (unless we do the requestLayout(), in which case it 5510 * will happen at measure). 5511 */ 5512 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 5513 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 5514 false); 5515 5516 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 5517 // In a fixed-height view, so use our new text layout. 5518 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 5519 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 5520 invalidate(); 5521 return; 5522 } 5523 5524 // Dynamic height, but height has stayed the same, 5525 // so use our new text layout. 5526 if (mLayout.getHeight() == oldht && 5527 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 5528 invalidate(); 5529 return; 5530 } 5531 } 5532 5533 // We lose: the height has changed and we have a dynamic height. 5534 // Request a new view layout using our new text layout. 5535 requestLayout(); 5536 invalidate(); 5537 } else { 5538 // Dynamic width, so we have no choice but to request a new 5539 // view layout with a new text layout. 5540 5541 nullLayouts(); 5542 requestLayout(); 5543 invalidate(); 5544 } 5545 } 5546 5547 /** 5548 * Returns true if anything changed. 5549 */ 5550 private boolean bringTextIntoView() { 5551 int line = 0; 5552 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5553 line = mLayout.getLineCount() - 1; 5554 } 5555 5556 Layout.Alignment a = mLayout.getParagraphAlignment(line); 5557 int dir = mLayout.getParagraphDirection(line); 5558 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5559 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5560 int ht = mLayout.getHeight(); 5561 5562 int scrollx, scrolly; 5563 5564 if (a == Layout.Alignment.ALIGN_CENTER) { 5565 /* 5566 * Keep centered if possible, or, if it is too wide to fit, 5567 * keep leading edge in view. 5568 */ 5569 5570 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5571 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5572 5573 if (right - left < hspace) { 5574 scrollx = (right + left) / 2 - hspace / 2; 5575 } else { 5576 if (dir < 0) { 5577 scrollx = right - hspace; 5578 } else { 5579 scrollx = left; 5580 } 5581 } 5582 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 5583 /* 5584 * Keep leading edge in view. 5585 */ 5586 5587 if (dir < 0) { 5588 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5589 scrollx = right - hspace; 5590 } else { 5591 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5592 } 5593 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 5594 /* 5595 * Keep trailing edge in view. 5596 */ 5597 5598 if (dir < 0) { 5599 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5600 } else { 5601 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5602 scrollx = right - hspace; 5603 } 5604 } 5605 5606 if (ht < vspace) { 5607 scrolly = 0; 5608 } else { 5609 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5610 scrolly = ht - vspace; 5611 } else { 5612 scrolly = 0; 5613 } 5614 } 5615 5616 if (scrollx != mScrollX || scrolly != mScrollY) { 5617 scrollTo(scrollx, scrolly); 5618 return true; 5619 } else { 5620 return false; 5621 } 5622 } 5623 5624 /** 5625 * Move the point, specified by the offset, into the view if it is needed. 5626 * This has to be called after layout. Returns true if anything changed. 5627 */ 5628 public boolean bringPointIntoView(int offset) { 5629 boolean changed = false; 5630 5631 int line = mLayout.getLineForOffset(offset); 5632 5633 // FIXME: Is it okay to truncate this, or should we round? 5634 final int x = (int)mLayout.getPrimaryHorizontal(offset); 5635 final int top = mLayout.getLineTop(line); 5636 final int bottom = mLayout.getLineTop(line + 1); 5637 5638 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5639 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5640 int ht = mLayout.getHeight(); 5641 5642 int grav; 5643 5644 switch (mLayout.getParagraphAlignment(line)) { 5645 case ALIGN_NORMAL: 5646 grav = 1; 5647 break; 5648 5649 case ALIGN_OPPOSITE: 5650 grav = -1; 5651 break; 5652 5653 default: 5654 grav = 0; 5655 } 5656 5657 grav *= mLayout.getParagraphDirection(line); 5658 5659 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5660 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5661 5662 int hslack = (bottom - top) / 2; 5663 int vslack = hslack; 5664 5665 if (vslack > vspace / 4) 5666 vslack = vspace / 4; 5667 if (hslack > hspace / 4) 5668 hslack = hspace / 4; 5669 5670 int hs = mScrollX; 5671 int vs = mScrollY; 5672 5673 if (top - vs < vslack) 5674 vs = top - vslack; 5675 if (bottom - vs > vspace - vslack) 5676 vs = bottom - (vspace - vslack); 5677 if (ht - vs < vspace) 5678 vs = ht - vspace; 5679 if (0 - vs > 0) 5680 vs = 0; 5681 5682 if (grav != 0) { 5683 if (x - hs < hslack) { 5684 hs = x - hslack; 5685 } 5686 if (x - hs > hspace - hslack) { 5687 hs = x - (hspace - hslack); 5688 } 5689 } 5690 5691 if (grav < 0) { 5692 if (left - hs > 0) 5693 hs = left; 5694 if (right - hs < hspace) 5695 hs = right - hspace; 5696 } else if (grav > 0) { 5697 if (right - hs < hspace) 5698 hs = right - hspace; 5699 if (left - hs > 0) 5700 hs = left; 5701 } else /* grav == 0 */ { 5702 if (right - left <= hspace) { 5703 /* 5704 * If the entire text fits, center it exactly. 5705 */ 5706 hs = left - (hspace - (right - left)) / 2; 5707 } else if (x > right - hslack) { 5708 /* 5709 * If we are near the right edge, keep the right edge 5710 * at the edge of the view. 5711 */ 5712 hs = right - hspace; 5713 } else if (x < left + hslack) { 5714 /* 5715 * If we are near the left edge, keep the left edge 5716 * at the edge of the view. 5717 */ 5718 hs = left; 5719 } else if (left > hs) { 5720 /* 5721 * Is there whitespace visible at the left? Fix it if so. 5722 */ 5723 hs = left; 5724 } else if (right < hs + hspace) { 5725 /* 5726 * Is there whitespace visible at the right? Fix it if so. 5727 */ 5728 hs = right - hspace; 5729 } else { 5730 /* 5731 * Otherwise, float as needed. 5732 */ 5733 if (x - hs < hslack) { 5734 hs = x - hslack; 5735 } 5736 if (x - hs > hspace - hslack) { 5737 hs = x - (hspace - hslack); 5738 } 5739 } 5740 } 5741 5742 if (hs != mScrollX || vs != mScrollY) { 5743 if (mScroller == null) { 5744 scrollTo(hs, vs); 5745 } else { 5746 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 5747 int dx = hs - mScrollX; 5748 int dy = vs - mScrollY; 5749 5750 if (duration > ANIMATED_SCROLL_GAP) { 5751 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 5752 awakenScrollBars(mScroller.getDuration()); 5753 invalidate(); 5754 } else { 5755 if (!mScroller.isFinished()) { 5756 mScroller.abortAnimation(); 5757 } 5758 5759 scrollBy(dx, dy); 5760 } 5761 5762 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 5763 } 5764 5765 changed = true; 5766 } 5767 5768 if (isFocused()) { 5769 // This offsets because getInterestingRect() is in terms of 5770 // viewport coordinates, but requestRectangleOnScreen() 5771 // is in terms of content coordinates. 5772 5773 Rect r = new Rect(x, top, x + 1, bottom); 5774 getInterestingRect(r, line); 5775 r.offset(mScrollX, mScrollY); 5776 5777 if (requestRectangleOnScreen(r)) { 5778 changed = true; 5779 } 5780 } 5781 5782 return changed; 5783 } 5784 5785 /** 5786 * Move the cursor, if needed, so that it is at an offset that is visible 5787 * to the user. This will not move the cursor if it represents more than 5788 * one character (a selection range). This will only work if the 5789 * TextView contains spannable text; otherwise it will do nothing. 5790 * 5791 * @return True if the cursor was actually moved, false otherwise. 5792 */ 5793 public boolean moveCursorToVisibleOffset() { 5794 if (!(mText instanceof Spannable)) { 5795 return false; 5796 } 5797 int start = getSelectionStart(); 5798 int end = getSelectionEnd(); 5799 if (start != end) { 5800 return false; 5801 } 5802 5803 // First: make sure the line is visible on screen: 5804 5805 int line = mLayout.getLineForOffset(start); 5806 5807 final int top = mLayout.getLineTop(line); 5808 final int bottom = mLayout.getLineTop(line + 1); 5809 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5810 int vslack = (bottom - top) / 2; 5811 if (vslack > vspace / 4) 5812 vslack = vspace / 4; 5813 final int vs = mScrollY; 5814 5815 if (top < (vs+vslack)) { 5816 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 5817 } else if (bottom > (vspace+vs-vslack)) { 5818 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 5819 } 5820 5821 // Next: make sure the character is visible on screen: 5822 5823 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5824 final int hs = mScrollX; 5825 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 5826 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 5827 5828 int newStart = start; 5829 if (newStart < leftChar) { 5830 newStart = leftChar; 5831 } else if (newStart > rightChar) { 5832 newStart = rightChar; 5833 } 5834 5835 if (newStart != start) { 5836 Selection.setSelection((Spannable)mText, newStart); 5837 return true; 5838 } 5839 5840 return false; 5841 } 5842 5843 @Override 5844 public void computeScroll() { 5845 if (mScroller != null) { 5846 if (mScroller.computeScrollOffset()) { 5847 mScrollX = mScroller.getCurrX(); 5848 mScrollY = mScroller.getCurrY(); 5849 postInvalidate(); // So we draw again 5850 } 5851 } 5852 } 5853 5854 private void getInterestingRect(Rect r, int line) { 5855 convertFromViewportToContentCoordinates(r); 5856 5857 // Rectangle can can be expanded on first and last line to take 5858 // padding into account. 5859 // TODO Take left/right padding into account too? 5860 if (line == 0) r.top -= getExtendedPaddingTop(); 5861 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 5862 } 5863 5864 private void convertFromViewportToContentCoordinates(Rect r) { 5865 final int horizontalOffset = viewportToContentHorizontalOffset(); 5866 r.left += horizontalOffset; 5867 r.right += horizontalOffset; 5868 5869 final int verticalOffset = viewportToContentVerticalOffset(); 5870 r.top += verticalOffset; 5871 r.bottom += verticalOffset; 5872 } 5873 5874 private int viewportToContentHorizontalOffset() { 5875 return getCompoundPaddingLeft() - mScrollX; 5876 } 5877 5878 private int viewportToContentVerticalOffset() { 5879 int offset = getExtendedPaddingTop() - mScrollY; 5880 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5881 offset += getVerticalOffset(false); 5882 } 5883 return offset; 5884 } 5885 5886 @Override 5887 public void debug(int depth) { 5888 super.debug(depth); 5889 5890 String output = debugIndent(depth); 5891 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 5892 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 5893 + "} "; 5894 5895 if (mText != null) { 5896 5897 output += "mText=\"" + mText + "\" "; 5898 if (mLayout != null) { 5899 output += "mLayout width=" + mLayout.getWidth() 5900 + " height=" + mLayout.getHeight(); 5901 } 5902 } else { 5903 output += "mText=NULL"; 5904 } 5905 Log.d(VIEW_LOG_TAG, output); 5906 } 5907 5908 /** 5909 * Convenience for {@link Selection#getSelectionStart}. 5910 */ 5911 @ViewDebug.ExportedProperty(category = "text") 5912 public int getSelectionStart() { 5913 return Selection.getSelectionStart(getText()); 5914 } 5915 5916 /** 5917 * Convenience for {@link Selection#getSelectionEnd}. 5918 */ 5919 @ViewDebug.ExportedProperty(category = "text") 5920 public int getSelectionEnd() { 5921 return Selection.getSelectionEnd(getText()); 5922 } 5923 5924 /** 5925 * Return true iff there is a selection inside this text view. 5926 */ 5927 public boolean hasSelection() { 5928 final int selectionStart = getSelectionStart(); 5929 final int selectionEnd = getSelectionEnd(); 5930 5931 return selectionStart >= 0 && selectionStart != selectionEnd; 5932 } 5933 5934 /** 5935 * Sets the properties of this field (lines, horizontally scrolling, 5936 * transformation method) to be for a single-line input. 5937 * 5938 * @attr ref android.R.styleable#TextView_singleLine 5939 */ 5940 public void setSingleLine() { 5941 setSingleLine(true); 5942 } 5943 5944 /** 5945 * If true, sets the properties of this field (lines, horizontally 5946 * scrolling, transformation method) to be for a single-line input; 5947 * if false, restores these to the default conditions. 5948 * Note that calling this with false restores default conditions, 5949 * not necessarily those that were in effect prior to calling 5950 * it with true. 5951 * 5952 * @attr ref android.R.styleable#TextView_singleLine 5953 */ 5954 @android.view.RemotableViewMethod 5955 public void setSingleLine(boolean singleLine) { 5956 if ((mInputType&EditorInfo.TYPE_MASK_CLASS) 5957 == EditorInfo.TYPE_CLASS_TEXT) { 5958 if (singleLine) { 5959 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 5960 } else { 5961 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 5962 } 5963 } 5964 applySingleLine(singleLine, true); 5965 } 5966 5967 private void applySingleLine(boolean singleLine, boolean applyTransformation) { 5968 mSingleLine = singleLine; 5969 if (singleLine) { 5970 setLines(1); 5971 setHorizontallyScrolling(true); 5972 if (applyTransformation) { 5973 setTransformationMethod(SingleLineTransformationMethod. 5974 getInstance()); 5975 } 5976 } else { 5977 setMaxLines(Integer.MAX_VALUE); 5978 setHorizontallyScrolling(false); 5979 if (applyTransformation) { 5980 setTransformationMethod(null); 5981 } 5982 } 5983 } 5984 5985 /** 5986 * Causes words in the text that are longer than the view is wide 5987 * to be ellipsized instead of broken in the middle. You may also 5988 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 5989 * to constrain the text to a single line. Use <code>null</code> 5990 * to turn off ellipsizing. 5991 * 5992 * @attr ref android.R.styleable#TextView_ellipsize 5993 */ 5994 public void setEllipsize(TextUtils.TruncateAt where) { 5995 mEllipsize = where; 5996 5997 if (mLayout != null) { 5998 nullLayouts(); 5999 requestLayout(); 6000 invalidate(); 6001 } 6002 } 6003 6004 /** 6005 * Sets how many times to repeat the marquee animation. Only applied if the 6006 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6007 * 6008 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6009 */ 6010 public void setMarqueeRepeatLimit(int marqueeLimit) { 6011 mMarqueeRepeatLimit = marqueeLimit; 6012 } 6013 6014 /** 6015 * Returns where, if anywhere, words that are longer than the view 6016 * is wide should be ellipsized. 6017 */ 6018 @ViewDebug.ExportedProperty 6019 public TextUtils.TruncateAt getEllipsize() { 6020 return mEllipsize; 6021 } 6022 6023 /** 6024 * Set the TextView so that when it takes focus, all the text is 6025 * selected. 6026 * 6027 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6028 */ 6029 @android.view.RemotableViewMethod 6030 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6031 mSelectAllOnFocus = selectAllOnFocus; 6032 6033 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6034 setText(mText, BufferType.SPANNABLE); 6035 } 6036 } 6037 6038 /** 6039 * Set whether the cursor is visible. The default is true. 6040 * 6041 * @attr ref android.R.styleable#TextView_cursorVisible 6042 */ 6043 @android.view.RemotableViewMethod 6044 public void setCursorVisible(boolean visible) { 6045 mCursorVisible = visible; 6046 invalidate(); 6047 6048 if (visible) { 6049 makeBlink(); 6050 } else if (mBlink != null) { 6051 mBlink.removeCallbacks(mBlink); 6052 } 6053 6054 // InsertionPointCursorController depends on mCursorVisible 6055 prepareCursorControllers(); 6056 } 6057 6058 private boolean canMarquee() { 6059 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6060 return width > 0 && mLayout.getLineWidth(0) > width; 6061 } 6062 6063 private void startMarquee() { 6064 // Do not ellipsize EditText 6065 if (mInput != null) return; 6066 6067 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6068 return; 6069 } 6070 6071 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6072 getLineCount() == 1 && canMarquee()) { 6073 6074 if (mMarquee == null) mMarquee = new Marquee(this); 6075 mMarquee.start(mMarqueeRepeatLimit); 6076 } 6077 } 6078 6079 private void stopMarquee() { 6080 if (mMarquee != null && !mMarquee.isStopped()) { 6081 mMarquee.stop(); 6082 } 6083 } 6084 6085 private void startStopMarquee(boolean start) { 6086 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6087 if (start) { 6088 startMarquee(); 6089 } else { 6090 stopMarquee(); 6091 } 6092 } 6093 } 6094 6095 private static final class Marquee extends Handler { 6096 // TODO: Add an option to configure this 6097 private static final float MARQUEE_DELTA_MAX = 0.07f; 6098 private static final int MARQUEE_DELAY = 1200; 6099 private static final int MARQUEE_RESTART_DELAY = 1200; 6100 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6101 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6102 6103 private static final byte MARQUEE_STOPPED = 0x0; 6104 private static final byte MARQUEE_STARTING = 0x1; 6105 private static final byte MARQUEE_RUNNING = 0x2; 6106 6107 private static final int MESSAGE_START = 0x1; 6108 private static final int MESSAGE_TICK = 0x2; 6109 private static final int MESSAGE_RESTART = 0x3; 6110 6111 private final WeakReference<TextView> mView; 6112 6113 private byte mStatus = MARQUEE_STOPPED; 6114 private final float mScrollUnit; 6115 private float mMaxScroll; 6116 float mMaxFadeScroll; 6117 private float mGhostStart; 6118 private float mGhostOffset; 6119 private float mFadeStop; 6120 private int mRepeatLimit; 6121 6122 float mScroll; 6123 6124 Marquee(TextView v) { 6125 final float density = v.getContext().getResources().getDisplayMetrics().density; 6126 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6127 mView = new WeakReference<TextView>(v); 6128 } 6129 6130 @Override 6131 public void handleMessage(Message msg) { 6132 switch (msg.what) { 6133 case MESSAGE_START: 6134 mStatus = MARQUEE_RUNNING; 6135 tick(); 6136 break; 6137 case MESSAGE_TICK: 6138 tick(); 6139 break; 6140 case MESSAGE_RESTART: 6141 if (mStatus == MARQUEE_RUNNING) { 6142 if (mRepeatLimit >= 0) { 6143 mRepeatLimit--; 6144 } 6145 start(mRepeatLimit); 6146 } 6147 break; 6148 } 6149 } 6150 6151 void tick() { 6152 if (mStatus != MARQUEE_RUNNING) { 6153 return; 6154 } 6155 6156 removeMessages(MESSAGE_TICK); 6157 6158 final TextView textView = mView.get(); 6159 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6160 mScroll += mScrollUnit; 6161 if (mScroll > mMaxScroll) { 6162 mScroll = mMaxScroll; 6163 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6164 } else { 6165 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6166 } 6167 textView.invalidate(); 6168 } 6169 } 6170 6171 void stop() { 6172 mStatus = MARQUEE_STOPPED; 6173 removeMessages(MESSAGE_START); 6174 removeMessages(MESSAGE_RESTART); 6175 removeMessages(MESSAGE_TICK); 6176 resetScroll(); 6177 } 6178 6179 private void resetScroll() { 6180 mScroll = 0.0f; 6181 final TextView textView = mView.get(); 6182 if (textView != null) textView.invalidate(); 6183 } 6184 6185 void start(int repeatLimit) { 6186 if (repeatLimit == 0) { 6187 stop(); 6188 return; 6189 } 6190 mRepeatLimit = repeatLimit; 6191 final TextView textView = mView.get(); 6192 if (textView != null && textView.mLayout != null) { 6193 mStatus = MARQUEE_STARTING; 6194 mScroll = 0.0f; 6195 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6196 textView.getCompoundPaddingRight(); 6197 final float lineWidth = textView.mLayout.getLineWidth(0); 6198 final float gap = textWidth / 3.0f; 6199 mGhostStart = lineWidth - textWidth + gap; 6200 mMaxScroll = mGhostStart + textWidth; 6201 mGhostOffset = lineWidth + gap; 6202 mFadeStop = lineWidth + textWidth / 6.0f; 6203 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6204 6205 textView.invalidate(); 6206 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6207 } 6208 } 6209 6210 float getGhostOffset() { 6211 return mGhostOffset; 6212 } 6213 6214 boolean shouldDrawLeftFade() { 6215 return mScroll <= mFadeStop; 6216 } 6217 6218 boolean shouldDrawGhost() { 6219 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6220 } 6221 6222 boolean isRunning() { 6223 return mStatus == MARQUEE_RUNNING; 6224 } 6225 6226 boolean isStopped() { 6227 return mStatus == MARQUEE_STOPPED; 6228 } 6229 } 6230 6231 /** 6232 * This method is called when the text is changed, in case any 6233 * subclasses would like to know. 6234 * 6235 * @param text The text the TextView is displaying. 6236 * @param start The offset of the start of the range of the text 6237 * that was modified. 6238 * @param before The offset of the former end of the range of the 6239 * text that was modified. If text was simply inserted, 6240 * this will be the same as <code>start</code>. 6241 * If text was replaced with new text or deleted, the 6242 * length of the old text was <code>before-start</code>. 6243 * @param after The offset of the end of the range of the text 6244 * that was modified. If text was simply deleted, 6245 * this will be the same as <code>start</code>. 6246 * If text was replaced with new text or inserted, 6247 * the length of the new text is <code>after-start</code>. 6248 */ 6249 protected void onTextChanged(CharSequence text, 6250 int start, int before, int after) { 6251 } 6252 6253 /** 6254 * This method is called when the selection has changed, in case any 6255 * subclasses would like to know. 6256 * 6257 * @param selStart The new selection start location. 6258 * @param selEnd The new selection end location. 6259 */ 6260 protected void onSelectionChanged(int selStart, int selEnd) { 6261 } 6262 6263 /** 6264 * Adds a TextWatcher to the list of those whose methods are called 6265 * whenever this TextView's text changes. 6266 * <p> 6267 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6268 * not called after {@link #setText} calls. Now, doing {@link #setText} 6269 * if there are any text changed listeners forces the buffer type to 6270 * Editable if it would not otherwise be and does call this method. 6271 */ 6272 public void addTextChangedListener(TextWatcher watcher) { 6273 if (mListeners == null) { 6274 mListeners = new ArrayList<TextWatcher>(); 6275 } 6276 6277 mListeners.add(watcher); 6278 } 6279 6280 /** 6281 * Removes the specified TextWatcher from the list of those whose 6282 * methods are called 6283 * whenever this TextView's text changes. 6284 */ 6285 public void removeTextChangedListener(TextWatcher watcher) { 6286 if (mListeners != null) { 6287 int i = mListeners.indexOf(watcher); 6288 6289 if (i >= 0) { 6290 mListeners.remove(i); 6291 } 6292 } 6293 } 6294 6295 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6296 int after) { 6297 if (mListeners != null) { 6298 final ArrayList<TextWatcher> list = mListeners; 6299 final int count = list.size(); 6300 for (int i = 0; i < count; i++) { 6301 list.get(i).beforeTextChanged(text, start, before, after); 6302 } 6303 } 6304 } 6305 6306 /** 6307 * Not private so it can be called from an inner class without going 6308 * through a thunk. 6309 */ 6310 void sendOnTextChanged(CharSequence text, int start, int before, 6311 int after) { 6312 if (mListeners != null) { 6313 final ArrayList<TextWatcher> list = mListeners; 6314 final int count = list.size(); 6315 for (int i = 0; i < count; i++) { 6316 list.get(i).onTextChanged(text, start, before, after); 6317 } 6318 } 6319 } 6320 6321 /** 6322 * Not private so it can be called from an inner class without going 6323 * through a thunk. 6324 */ 6325 void sendAfterTextChanged(Editable text) { 6326 if (mListeners != null) { 6327 final ArrayList<TextWatcher> list = mListeners; 6328 final int count = list.size(); 6329 for (int i = 0; i < count; i++) { 6330 list.get(i).afterTextChanged(text); 6331 } 6332 } 6333 } 6334 6335 /** 6336 * Not private so it can be called from an inner class without going 6337 * through a thunk. 6338 */ 6339 void handleTextChanged(CharSequence buffer, int start, 6340 int before, int after) { 6341 final InputMethodState ims = mInputMethodState; 6342 if (ims == null || ims.mBatchEditNesting == 0) { 6343 updateAfterEdit(); 6344 } 6345 if (ims != null) { 6346 ims.mContentChanged = true; 6347 if (ims.mChangedStart < 0) { 6348 ims.mChangedStart = start; 6349 ims.mChangedEnd = start+before; 6350 } else { 6351 if (ims.mChangedStart > start) ims.mChangedStart = start; 6352 if (ims.mChangedEnd < (start+before)) ims.mChangedEnd = start+before; 6353 } 6354 ims.mChangedDelta += after-before; 6355 } 6356 6357 sendOnTextChanged(buffer, start, before, after); 6358 onTextChanged(buffer, start, before, after); 6359 6360 // Hide the controller if the amount of content changed 6361 if (before != after) { 6362 hideControllers(); 6363 } 6364 } 6365 6366 /** 6367 * Not private so it can be called from an inner class without going 6368 * through a thunk. 6369 */ 6370 void spanChange(Spanned buf, Object what, int oldStart, int newStart, 6371 int oldEnd, int newEnd) { 6372 // XXX Make the start and end move together if this ends up 6373 // spending too much time invalidating. 6374 6375 boolean selChanged = false; 6376 int newSelStart=-1, newSelEnd=-1; 6377 6378 final InputMethodState ims = mInputMethodState; 6379 6380 if (what == Selection.SELECTION_END) { 6381 mHighlightPathBogus = true; 6382 selChanged = true; 6383 newSelEnd = newStart; 6384 6385 if (!isFocused()) { 6386 mSelectionMoved = true; 6387 } 6388 6389 if (oldStart >= 0 || newStart >= 0) { 6390 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6391 registerForPreDraw(); 6392 6393 if (isFocused()) { 6394 mShowCursor = SystemClock.uptimeMillis(); 6395 makeBlink(); 6396 } 6397 } 6398 } 6399 6400 if (what == Selection.SELECTION_START) { 6401 mHighlightPathBogus = true; 6402 selChanged = true; 6403 newSelStart = newStart; 6404 6405 if (!isFocused()) { 6406 mSelectionMoved = true; 6407 } 6408 6409 if (oldStart >= 0 || newStart >= 0) { 6410 int end = Selection.getSelectionEnd(buf); 6411 invalidateCursor(end, oldStart, newStart); 6412 } 6413 } 6414 6415 if (selChanged) { 6416 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6417 if (newSelStart < 0) { 6418 newSelStart = Selection.getSelectionStart(buf); 6419 } 6420 if (newSelEnd < 0) { 6421 newSelEnd = Selection.getSelectionEnd(buf); 6422 } 6423 onSelectionChanged(newSelStart, newSelEnd); 6424 } 6425 } 6426 6427 if (what instanceof UpdateAppearance || 6428 what instanceof ParagraphStyle) { 6429 if (ims == null || ims.mBatchEditNesting == 0) { 6430 invalidate(); 6431 mHighlightPathBogus = true; 6432 checkForResize(); 6433 } else { 6434 ims.mContentChanged = true; 6435 } 6436 } 6437 6438 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6439 mHighlightPathBogus = true; 6440 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6441 ims.mSelectionModeChanged = true; 6442 } 6443 6444 if (Selection.getSelectionStart(buf) >= 0) { 6445 if (ims == null || ims.mBatchEditNesting == 0) { 6446 invalidateCursor(); 6447 } else { 6448 ims.mCursorChanged = true; 6449 } 6450 } 6451 } 6452 6453 if (what instanceof ParcelableSpan) { 6454 // If this is a span that can be sent to a remote process, 6455 // the current extract editor would be interested in it. 6456 if (ims != null && ims.mExtracting != null) { 6457 if (ims.mBatchEditNesting != 0) { 6458 if (oldStart >= 0) { 6459 if (ims.mChangedStart > oldStart) { 6460 ims.mChangedStart = oldStart; 6461 } 6462 if (ims.mChangedStart > oldEnd) { 6463 ims.mChangedStart = oldEnd; 6464 } 6465 } 6466 if (newStart >= 0) { 6467 if (ims.mChangedStart > newStart) { 6468 ims.mChangedStart = newStart; 6469 } 6470 if (ims.mChangedStart > newEnd) { 6471 ims.mChangedStart = newEnd; 6472 } 6473 } 6474 } else { 6475 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 6476 + oldStart + "-" + oldEnd + "," 6477 + newStart + "-" + newEnd + what); 6478 ims.mContentChanged = true; 6479 } 6480 } 6481 } 6482 } 6483 6484 private class ChangeWatcher 6485 implements TextWatcher, SpanWatcher { 6486 6487 private CharSequence mBeforeText; 6488 6489 public void beforeTextChanged(CharSequence buffer, int start, 6490 int before, int after) { 6491 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 6492 + " before=" + before + " after=" + after + ": " + buffer); 6493 6494 if (AccessibilityManager.getInstance(mContext).isEnabled() 6495 && !isPasswordInputType(mInputType)) { 6496 mBeforeText = buffer.toString(); 6497 } 6498 6499 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 6500 } 6501 6502 public void onTextChanged(CharSequence buffer, int start, 6503 int before, int after) { 6504 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 6505 + " before=" + before + " after=" + after + ": " + buffer); 6506 TextView.this.handleTextChanged(buffer, start, before, after); 6507 6508 if (AccessibilityManager.getInstance(mContext).isEnabled() && 6509 (isFocused() || isSelected() && 6510 isShown())) { 6511 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 6512 mBeforeText = null; 6513 } 6514 } 6515 6516 public void afterTextChanged(Editable buffer) { 6517 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 6518 TextView.this.sendAfterTextChanged(buffer); 6519 6520 if (MetaKeyKeyListener.getMetaState(buffer, 6521 MetaKeyKeyListener.META_SELECTING) != 0) { 6522 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 6523 } 6524 } 6525 6526 public void onSpanChanged(Spannable buf, 6527 Object what, int s, int e, int st, int en) { 6528 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 6529 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 6530 TextView.this.spanChange(buf, what, s, st, e, en); 6531 } 6532 6533 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 6534 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 6535 + " what=" + what + ": " + buf); 6536 TextView.this.spanChange(buf, what, -1, s, -1, e); 6537 } 6538 6539 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 6540 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 6541 + " what=" + what + ": " + buf); 6542 TextView.this.spanChange(buf, what, s, -1, e, -1); 6543 } 6544 } 6545 6546 private void makeBlink() { 6547 if (!mCursorVisible || !isTextEditable()) { 6548 if (mBlink != null) { 6549 mBlink.removeCallbacks(mBlink); 6550 } 6551 6552 return; 6553 } 6554 6555 if (mBlink == null) 6556 mBlink = new Blink(this); 6557 6558 mBlink.removeCallbacks(mBlink); 6559 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 6560 } 6561 6562 /** 6563 * @hide 6564 */ 6565 @Override 6566 public void dispatchFinishTemporaryDetach() { 6567 mDispatchTemporaryDetach = true; 6568 super.dispatchFinishTemporaryDetach(); 6569 mDispatchTemporaryDetach = false; 6570 } 6571 6572 @Override 6573 public void onStartTemporaryDetach() { 6574 super.onStartTemporaryDetach(); 6575 // Only track when onStartTemporaryDetach() is called directly, 6576 // usually because this instance is an editable field in a list 6577 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 6578 } 6579 6580 @Override 6581 public void onFinishTemporaryDetach() { 6582 super.onFinishTemporaryDetach(); 6583 // Only track when onStartTemporaryDetach() is called directly, 6584 // usually because this instance is an editable field in a list 6585 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 6586 } 6587 6588 @Override 6589 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 6590 if (mTemporaryDetach) { 6591 // If we are temporarily in the detach state, then do nothing. 6592 super.onFocusChanged(focused, direction, previouslyFocusedRect); 6593 return; 6594 } 6595 6596 mShowCursor = SystemClock.uptimeMillis(); 6597 6598 ensureEndedBatchEdit(); 6599 6600 if (focused) { 6601 int selStart = getSelectionStart(); 6602 int selEnd = getSelectionEnd(); 6603 6604 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 6605 // mode for these, unless there was a specific selection already started. 6606 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 6607 selEnd == mText.length(); 6608 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 6609 6610 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 6611 // If a tap was used to give focus to that view, move cursor at tap position. 6612 // Has to be done before onTakeFocus, which can be overloaded. 6613 final int lastTapPosition = getLastTapPosition(); 6614 if (lastTapPosition >= 0) { 6615 Selection.setSelection((Spannable) mText, lastTapPosition); 6616 } 6617 6618 if (mMovement != null) { 6619 mMovement.onTakeFocus(this, (Spannable) mText, direction); 6620 } 6621 6622 // The DecorView does not have focus when the 'Done' ExtractEditText button is 6623 // pressed. Since it is the ViewRoot's mView, it requests focus before 6624 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 6625 // This special case ensure that we keep current selection in that case. 6626 // It would be better to know why the DecorView does not have focus at that time. 6627 if (((this instanceof ExtractEditText) || mSelectionMoved) && 6628 selStart >= 0 && selEnd >= 0) { 6629 /* 6630 * Someone intentionally set the selection, so let them 6631 * do whatever it is that they wanted to do instead of 6632 * the default on-focus behavior. We reset the selection 6633 * here instead of just skipping the onTakeFocus() call 6634 * because some movement methods do something other than 6635 * just setting the selection in theirs and we still 6636 * need to go through that path. 6637 */ 6638 Selection.setSelection((Spannable) mText, selStart, selEnd); 6639 } 6640 6641 if (mSelectAllOnFocus) { 6642 Selection.setSelection((Spannable) mText, 0, mText.length()); 6643 } 6644 6645 mTouchFocusSelected = true; 6646 } 6647 6648 mFrozenWithFocus = false; 6649 mSelectionMoved = false; 6650 6651 if (mText instanceof Spannable) { 6652 Spannable sp = (Spannable) mText; 6653 MetaKeyKeyListener.resetMetaState(sp); 6654 } 6655 6656 makeBlink(); 6657 6658 if (mError != null) { 6659 showError(); 6660 } 6661 } else { 6662 if (mError != null) { 6663 hideError(); 6664 } 6665 // Don't leave us in the middle of a batch edit. 6666 onEndBatchEdit(); 6667 6668 hideInsertionPointCursorController(); 6669 if (this instanceof ExtractEditText) { 6670 // terminateTextSelectionMode would remove selection, which we want to keep when 6671 // ExtractEditText goes out of focus. 6672 mIsInTextSelectionMode = false; 6673 } else { 6674 stopTextSelectionMode(); 6675 } 6676 6677 if (mSelectionModifierCursorController != null) { 6678 ((SelectionModifierCursorController) mSelectionModifierCursorController).resetTouchOffsets(); 6679 } 6680 } 6681 6682 startStopMarquee(focused); 6683 6684 if (mTransformation != null) { 6685 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 6686 } 6687 6688 super.onFocusChanged(focused, direction, previouslyFocusedRect); 6689 } 6690 6691 private int getLastTapPosition() { 6692 if (mSelectionModifierCursorController != null) { 6693 int lastTapPosition = ((SelectionModifierCursorController) 6694 mSelectionModifierCursorController).getMinTouchOffset(); 6695 if (lastTapPosition >= 0) { 6696 // Safety check, should not be possible. 6697 if (lastTapPosition > mText.length()) { 6698 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 6699 + mText.length() + ")"); 6700 lastTapPosition = mText.length(); 6701 } 6702 return lastTapPosition; 6703 } 6704 } 6705 6706 return -1; 6707 } 6708 6709 @Override 6710 public void onWindowFocusChanged(boolean hasWindowFocus) { 6711 super.onWindowFocusChanged(hasWindowFocus); 6712 6713 if (hasWindowFocus) { 6714 if (mBlink != null) { 6715 mBlink.uncancel(); 6716 6717 if (isFocused()) { 6718 mShowCursor = SystemClock.uptimeMillis(); 6719 makeBlink(); 6720 } 6721 } 6722 } else { 6723 if (mBlink != null) { 6724 mBlink.cancel(); 6725 } 6726 // Don't leave us in the middle of a batch edit. 6727 onEndBatchEdit(); 6728 if (mInputContentType != null) { 6729 mInputContentType.enterDown = false; 6730 } 6731 hideControllers(); 6732 } 6733 6734 startStopMarquee(hasWindowFocus); 6735 } 6736 6737 @Override 6738 protected void onVisibilityChanged(View changedView, int visibility) { 6739 super.onVisibilityChanged(changedView, visibility); 6740 if (visibility != VISIBLE) { 6741 hideControllers(); 6742 } 6743 } 6744 6745 /** 6746 * Use {@link BaseInputConnection#removeComposingSpans 6747 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 6748 * state from this text view. 6749 */ 6750 public void clearComposingText() { 6751 if (mText instanceof Spannable) { 6752 BaseInputConnection.removeComposingSpans((Spannable)mText); 6753 } 6754 } 6755 6756 @Override 6757 public void setSelected(boolean selected) { 6758 boolean wasSelected = isSelected(); 6759 6760 super.setSelected(selected); 6761 6762 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6763 if (selected) { 6764 startMarquee(); 6765 } else { 6766 stopMarquee(); 6767 } 6768 } 6769 } 6770 6771 private void onTapUpEvent(int prevStart, int prevEnd) { 6772 final int start = getSelectionStart(); 6773 final int end = getSelectionEnd(); 6774 6775 if (start == end) { 6776 boolean tapInsideSelectAllOnFocus = mSelectAllOnFocus && prevStart == 0 && 6777 prevEnd == mText.length(); 6778 if (start >= prevStart && start < prevEnd && !tapInsideSelectAllOnFocus) { 6779 // Restore previous selection 6780 Selection.setSelection((Spannable)mText, prevStart, prevEnd); 6781 6782 // Tapping inside the selection displays the cut/copy/paste context menu, unless 6783 // this is a double tap that should simply trigger text selection mode. 6784 if (!mNoContextMenuOnUp) showContextMenu(); 6785 } else { 6786 // Tapping outside stops selection mode, if any 6787 stopTextSelectionMode(); 6788 6789 boolean selectAllGotFocus = mSelectAllOnFocus && mTouchFocusSelected; 6790 if (hasInsertionController() && !selectAllGotFocus) { 6791 getInsertionController().show(); 6792 } 6793 } 6794 } 6795 } 6796 6797 class CommitSelectionReceiver extends ResultReceiver { 6798 private final int mPrevStart, mPrevEnd; 6799 6800 public CommitSelectionReceiver(int prevStart, int prevEnd) { 6801 super(getHandler()); 6802 mPrevStart = prevStart; 6803 mPrevEnd = prevEnd; 6804 } 6805 6806 @Override 6807 protected void onReceiveResult(int resultCode, Bundle resultData) { 6808 // If this tap was actually used to show the IMM, leave cursor or selection unchanged 6809 // by restoring its previous position. 6810 if (resultCode == InputMethodManager.RESULT_SHOWN) { 6811 final int len = mText.length(); 6812 int start = Math.min(len, mPrevStart); 6813 int end = Math.min(len, mPrevEnd); 6814 Selection.setSelection((Spannable)mText, start, end); 6815 6816 boolean selectAllGotFocus = mSelectAllOnFocus && mTouchFocusSelected; 6817 if (hasSelection() && !selectAllGotFocus) { 6818 startTextSelectionMode(); 6819 } 6820 } 6821 } 6822 } 6823 6824 @Override 6825 public boolean onTouchEvent(MotionEvent event) { 6826 final int action = event.getActionMasked(); 6827 6828 if (hasInsertionController()) { 6829 getInsertionController().onTouchEvent(event); 6830 } 6831 if (hasSelectionController()) { 6832 getSelectionController().onTouchEvent(event); 6833 } 6834 6835 if (action == MotionEvent.ACTION_DOWN) { 6836 // Reset this state; it will be re-set if super.onTouchEvent 6837 // causes focus to move to the view. 6838 mTouchFocusSelected = false; 6839 mScrolled = false; 6840 } 6841 6842 boolean result = super.onTouchEvent(event); 6843 6844 /* 6845 * Don't handle the release after a long press, because it will 6846 * move the selection away from whatever the menu action was 6847 * trying to affect. 6848 */ 6849 if (mEatTouchRelease && action == MotionEvent.ACTION_UP) { 6850 mEatTouchRelease = false; 6851 } else if ((mMovement != null || onCheckIsTextEditor()) && mText instanceof Spannable && 6852 mLayout != null) { 6853 boolean handled = false; 6854 6855 // Save previous selection, in case this event is used to show the IME. 6856 int oldSelStart = getSelectionStart(); 6857 int oldSelEnd = getSelectionEnd(); 6858 6859 final int oldScrollX = mScrollX; 6860 final int oldScrollY = mScrollY; 6861 6862 if (mMovement != null) { 6863 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 6864 } 6865 6866 if (isTextEditable()) { 6867 if (mScrollX != oldScrollX || mScrollY != oldScrollY) { 6868 // Hide insertion anchor while scrolling. Leave selection. 6869 hideInsertionPointCursorController(); 6870 if (mSelectionModifierCursorController != null && 6871 mSelectionModifierCursorController.isShowing()) { 6872 mSelectionModifierCursorController.updatePosition(); 6873 } 6874 } 6875 if (action == MotionEvent.ACTION_UP && isFocused() && !mScrolled) { 6876 InputMethodManager imm = (InputMethodManager) 6877 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 6878 6879 CommitSelectionReceiver csr = null; 6880 if (getSelectionStart() != oldSelStart || getSelectionEnd() != oldSelEnd || 6881 didTouchFocusSelect()) { 6882 csr = new CommitSelectionReceiver(oldSelStart, oldSelEnd); 6883 } 6884 6885 handled |= imm.showSoftInput(this, 0, csr) && (csr != null); 6886 6887 // Cannot be done by CommitSelectionReceiver, which might not always be called, 6888 // for instance when dealing with an ExtractEditText. 6889 onTapUpEvent(oldSelStart, oldSelEnd); 6890 } 6891 } 6892 6893 if (handled) result = true; 6894 } 6895 6896 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) { 6897 mNoContextMenuOnUp = false; 6898 } 6899 6900 return result; 6901 } 6902 6903 private void prepareCursorControllers() { 6904 boolean windowSupportsHandles = false; 6905 6906 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 6907 if (params instanceof WindowManager.LayoutParams) { 6908 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 6909 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 6910 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 6911 } 6912 6913 // TODO Add an extra android:cursorController flag to disable the controller? 6914 mInsertionControllerEnabled = windowSupportsHandles && mCursorVisible && mLayout != null; 6915 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 6916 mLayout != null; 6917 6918 if (!mInsertionControllerEnabled) { 6919 mInsertionPointCursorController = null; 6920 } 6921 6922 if (!mSelectionControllerEnabled) { 6923 // Stop selection mode if the controller becomes unavailable. 6924 stopTextSelectionMode(); 6925 mSelectionModifierCursorController = null; 6926 } 6927 } 6928 6929 /** 6930 * @return True iff this TextView contains a text that can be edited. 6931 */ 6932 private boolean isTextEditable() { 6933 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 6934 } 6935 6936 /** 6937 * Returns true, only while processing a touch gesture, if the initial 6938 * touch down event caused focus to move to the text view and as a result 6939 * its selection changed. Only valid while processing the touch gesture 6940 * of interest. 6941 */ 6942 public boolean didTouchFocusSelect() { 6943 return mTouchFocusSelected; 6944 } 6945 6946 @Override 6947 public void cancelLongPress() { 6948 super.cancelLongPress(); 6949 mScrolled = true; 6950 } 6951 6952 @Override 6953 public boolean onTrackballEvent(MotionEvent event) { 6954 if (mMovement != null && mText instanceof Spannable && 6955 mLayout != null) { 6956 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 6957 return true; 6958 } 6959 } 6960 6961 return super.onTrackballEvent(event); 6962 } 6963 6964 public void setScroller(Scroller s) { 6965 mScroller = s; 6966 } 6967 6968 private static class Blink extends Handler implements Runnable { 6969 private final WeakReference<TextView> mView; 6970 private boolean mCancelled; 6971 6972 public Blink(TextView v) { 6973 mView = new WeakReference<TextView>(v); 6974 } 6975 6976 public void run() { 6977 if (mCancelled) { 6978 return; 6979 } 6980 6981 removeCallbacks(Blink.this); 6982 6983 TextView tv = mView.get(); 6984 6985 if (tv != null && tv.isFocused()) { 6986 int st = tv.getSelectionStart(); 6987 int en = tv.getSelectionEnd(); 6988 6989 if (st == en && st >= 0 && en >= 0) { 6990 if (tv.mLayout != null) { 6991 tv.invalidateCursorPath(); 6992 } 6993 6994 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 6995 } 6996 } 6997 } 6998 6999 void cancel() { 7000 if (!mCancelled) { 7001 removeCallbacks(Blink.this); 7002 mCancelled = true; 7003 } 7004 } 7005 7006 void uncancel() { 7007 mCancelled = false; 7008 } 7009 } 7010 7011 @Override 7012 protected float getLeftFadingEdgeStrength() { 7013 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7014 if (mMarquee != null && !mMarquee.isStopped()) { 7015 final Marquee marquee = mMarquee; 7016 if (marquee.shouldDrawLeftFade()) { 7017 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7018 } else { 7019 return 0.0f; 7020 } 7021 } else if (getLineCount() == 1) { 7022 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7023 case Gravity.LEFT: 7024 return 0.0f; 7025 case Gravity.RIGHT: 7026 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7027 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7028 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7029 case Gravity.CENTER_HORIZONTAL: 7030 return 0.0f; 7031 } 7032 } 7033 } 7034 return super.getLeftFadingEdgeStrength(); 7035 } 7036 7037 @Override 7038 protected float getRightFadingEdgeStrength() { 7039 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7040 if (mMarquee != null && !mMarquee.isStopped()) { 7041 final Marquee marquee = mMarquee; 7042 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7043 } else if (getLineCount() == 1) { 7044 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7045 case Gravity.LEFT: 7046 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7047 getCompoundPaddingRight(); 7048 final float lineWidth = mLayout.getLineWidth(0); 7049 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7050 case Gravity.RIGHT: 7051 return 0.0f; 7052 case Gravity.CENTER_HORIZONTAL: 7053 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7054 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7055 getHorizontalFadingEdgeLength(); 7056 } 7057 } 7058 } 7059 return super.getRightFadingEdgeStrength(); 7060 } 7061 7062 @Override 7063 protected int computeHorizontalScrollRange() { 7064 if (mLayout != null) 7065 return mLayout.getWidth(); 7066 7067 return super.computeHorizontalScrollRange(); 7068 } 7069 7070 @Override 7071 protected int computeVerticalScrollRange() { 7072 if (mLayout != null) 7073 return mLayout.getHeight(); 7074 7075 return super.computeVerticalScrollRange(); 7076 } 7077 7078 @Override 7079 protected int computeVerticalScrollExtent() { 7080 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7081 } 7082 7083 public enum BufferType { 7084 NORMAL, SPANNABLE, EDITABLE, 7085 } 7086 7087 /** 7088 * Returns the TextView_textColor attribute from the 7089 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7090 * from the TextView_textAppearance attribute, if TextView_textColor 7091 * was not set directly. 7092 */ 7093 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7094 ColorStateList colors; 7095 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7096 TextView_textColor); 7097 7098 if (colors == null) { 7099 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7100 TextView_textAppearance, -1); 7101 if (ap != -1) { 7102 TypedArray appearance; 7103 appearance = context.obtainStyledAttributes(ap, 7104 com.android.internal.R.styleable.TextAppearance); 7105 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7106 TextAppearance_textColor); 7107 appearance.recycle(); 7108 } 7109 } 7110 7111 return colors; 7112 } 7113 7114 /** 7115 * Returns the default color from the TextView_textColor attribute 7116 * from the AttributeSet, if set, or the default color from the 7117 * TextAppearance_textColor from the TextView_textAppearance attribute, 7118 * if TextView_textColor was not set directly. 7119 */ 7120 public static int getTextColor(Context context, 7121 TypedArray attrs, 7122 int def) { 7123 ColorStateList colors = getTextColors(context, attrs); 7124 7125 if (colors == null) { 7126 return def; 7127 } else { 7128 return colors.getDefaultColor(); 7129 } 7130 } 7131 7132 @Override 7133 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7134 switch (keyCode) { 7135 case KeyEvent.KEYCODE_A: 7136 if (canSelectText()) { 7137 return onTextContextMenuItem(ID_SELECT_ALL); 7138 } 7139 7140 break; 7141 7142 case KeyEvent.KEYCODE_X: 7143 if (canCut()) { 7144 return onTextContextMenuItem(ID_CUT); 7145 } 7146 7147 break; 7148 7149 case KeyEvent.KEYCODE_C: 7150 if (canCopy()) { 7151 return onTextContextMenuItem(ID_COPY); 7152 } 7153 7154 break; 7155 7156 case KeyEvent.KEYCODE_V: 7157 if (canPaste()) { 7158 return onTextContextMenuItem(ID_PASTE); 7159 } 7160 7161 break; 7162 } 7163 7164 return super.onKeyShortcut(keyCode, event); 7165 } 7166 7167 private boolean canSelectText() { 7168 return hasSelectionController() && mText.length() != 0; 7169 } 7170 7171 private boolean textCanBeSelected() { 7172 // prepareCursorController() relies on this method. 7173 // If you change this condition, make sure prepareCursorController is called anywhere 7174 // the value of this condition might be changed. 7175 return (mText instanceof Spannable && 7176 mMovement != null && 7177 mMovement.canSelectArbitrarily()); 7178 } 7179 7180 private boolean canCut() { 7181 if (hasPasswordTransformationMethod()) { 7182 return false; 7183 } 7184 7185 if (mText.length() > 0 && hasSelection()) { 7186 if (mText instanceof Editable && mInput != null) { 7187 return true; 7188 } 7189 } 7190 7191 return false; 7192 } 7193 7194 private boolean canCopy() { 7195 if (hasPasswordTransformationMethod()) { 7196 return false; 7197 } 7198 7199 if (mText.length() > 0 && hasSelection()) { 7200 return true; 7201 } 7202 7203 return false; 7204 } 7205 7206 private boolean canPaste() { 7207 return (mText instanceof Editable && 7208 mInput != null && 7209 getSelectionStart() >= 0 && 7210 getSelectionEnd() >= 0 && 7211 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7212 hasText()); 7213 } 7214 7215 /** 7216 * Returns the offsets delimiting the 'word' located at position offset. 7217 * 7218 * @param offset An offset in the text. 7219 * @return The offsets for the start and end of the word located at <code>offset</code>. 7220 * The two ints offsets are packed in a long, with the starting offset shifted by 32 bits. 7221 * Returns a negative value if no valid word was found. 7222 */ 7223 private long getWordLimitsAt(int offset) { 7224 /* 7225 * Quick return if the input type is one where adding words 7226 * to the dictionary doesn't make any sense. 7227 */ 7228 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7229 if (klass == InputType.TYPE_CLASS_NUMBER || 7230 klass == InputType.TYPE_CLASS_PHONE || 7231 klass == InputType.TYPE_CLASS_DATETIME) { 7232 return -1; 7233 } 7234 7235 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7236 if (variation == InputType.TYPE_TEXT_VARIATION_URI || 7237 variation == InputType.TYPE_TEXT_VARIATION_PASSWORD || 7238 variation == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD || 7239 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7240 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7241 return -1; 7242 } 7243 7244 int len = mText.length(); 7245 int end = Math.min(offset, len); 7246 7247 if (end < 0) { 7248 return -1; 7249 } 7250 7251 int start = end; 7252 7253 for (; start > 0; start--) { 7254 char c = mTransformed.charAt(start - 1); 7255 int type = Character.getType(c); 7256 7257 if (c != '\'' && 7258 type != Character.UPPERCASE_LETTER && 7259 type != Character.LOWERCASE_LETTER && 7260 type != Character.TITLECASE_LETTER && 7261 type != Character.MODIFIER_LETTER && 7262 type != Character.DECIMAL_DIGIT_NUMBER) { 7263 break; 7264 } 7265 } 7266 7267 for (; end < len; end++) { 7268 char c = mTransformed.charAt(end); 7269 int type = Character.getType(c); 7270 7271 if (c != '\'' && 7272 type != Character.UPPERCASE_LETTER && 7273 type != Character.LOWERCASE_LETTER && 7274 type != Character.TITLECASE_LETTER && 7275 type != Character.MODIFIER_LETTER && 7276 type != Character.DECIMAL_DIGIT_NUMBER) { 7277 break; 7278 } 7279 } 7280 7281 if (start == end) { 7282 return -1; 7283 } 7284 7285 if (end - start > 48) { 7286 return -1; 7287 } 7288 7289 boolean hasLetter = false; 7290 for (int i = start; i < end; i++) { 7291 if (Character.isLetter(mTransformed.charAt(i))) { 7292 hasLetter = true; 7293 break; 7294 } 7295 } 7296 7297 if (!hasLetter) { 7298 return -1; 7299 } 7300 7301 // Two ints packed in a long 7302 return packRangeInLong(start, end); 7303 } 7304 7305 private static long packRangeInLong(int start, int end) { 7306 return (((long) start) << 32) | end; 7307 } 7308 7309 private static int extractRangeStartFromLong(long range) { 7310 return (int) (range >>> 32); 7311 } 7312 7313 private static int extractRangeEndFromLong(long range) { 7314 return (int) (range & 0x00000000FFFFFFFFL); 7315 } 7316 7317 private void selectCurrentWord() { 7318 // In case selection mode is started after an orientation change or after a select all, 7319 // use the current selection instead of creating one 7320 if (hasSelection()) { 7321 return; 7322 } 7323 7324 int minOffset, maxOffset; 7325 7326 if (mContextMenuTriggeredByKey) { 7327 minOffset = getSelectionStart(); 7328 maxOffset = getSelectionEnd(); 7329 } else { 7330 // hasSelectionController is true since we canSelectText. 7331 SelectionModifierCursorController selectionModifierCursorController = 7332 (SelectionModifierCursorController) getSelectionController(); 7333 minOffset = selectionModifierCursorController.getMinTouchOffset(); 7334 maxOffset = selectionModifierCursorController.getMaxTouchOffset(); 7335 } 7336 7337 int selectionStart, selectionEnd; 7338 7339 long wordLimits = getWordLimitsAt(minOffset); 7340 if (wordLimits >= 0) { 7341 selectionStart = extractRangeStartFromLong(wordLimits); 7342 } else { 7343 selectionStart = Math.max(minOffset - 5, 0); 7344 } 7345 7346 wordLimits = getWordLimitsAt(maxOffset); 7347 if (wordLimits >= 0) { 7348 selectionEnd = extractRangeEndFromLong(wordLimits); 7349 } else { 7350 selectionEnd = Math.min(maxOffset + 5, mText.length()); 7351 } 7352 7353 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7354 } 7355 7356 private String getWordForDictionary() { 7357 int seedPosition = mContextMenuTriggeredByKey ? getSelectionStart() : getLastTapPosition(); 7358 long wordLimits = getWordLimitsAt(seedPosition); 7359 if (wordLimits >= 0) { 7360 int start = extractRangeStartFromLong(wordLimits); 7361 int end = extractRangeEndFromLong(wordLimits); 7362 return mTransformed.subSequence(start, end).toString(); 7363 } else { 7364 return null; 7365 } 7366 } 7367 7368 @Override 7369 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 7370 if (!isShown()) { 7371 return false; 7372 } 7373 7374 final boolean isPassword = isPasswordInputType(mInputType); 7375 7376 if (!isPassword) { 7377 CharSequence text = getText(); 7378 if (TextUtils.isEmpty(text)) { 7379 text = getHint(); 7380 } 7381 if (!TextUtils.isEmpty(text)) { 7382 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7383 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7384 } 7385 event.getText().add(text); 7386 } 7387 } else { 7388 event.setPassword(isPassword); 7389 } 7390 return false; 7391 } 7392 7393 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7394 int fromIndex, int removedCount, int addedCount) { 7395 AccessibilityEvent event = 7396 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7397 event.setFromIndex(fromIndex); 7398 event.setRemovedCount(removedCount); 7399 event.setAddedCount(addedCount); 7400 event.setBeforeText(beforeText); 7401 sendAccessibilityEventUnchecked(event); 7402 } 7403 7404 @Override 7405 protected void onCreateContextMenu(ContextMenu menu) { 7406 super.onCreateContextMenu(menu); 7407 boolean added = false; 7408 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7409 // Problem with context menu on long press: the menu appears while the key in down and when 7410 // the key is released, the view does not receive the key_up event. This ensures that the 7411 // state is reset whenever the context menu action is displayed. 7412 // mContextMenuTriggeredByKey saved that state so that it is available in 7413 // onTextContextMenuItem. We cannot simply clear these flags in onTextContextMenuItem since 7414 // it may not be called (if the user/ discards the context menu with the back key). 7415 mDPadCenterIsDown = mEnterKeyIsDown = false; 7416 7417 if (mIsInTextSelectionMode) { 7418 MenuHandler handler = new MenuHandler(); 7419 7420 if (canCut()) { 7421 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 7422 setOnMenuItemClickListener(handler). 7423 setAlphabeticShortcut('x'); 7424 added = true; 7425 } 7426 7427 if (canCopy()) { 7428 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 7429 setOnMenuItemClickListener(handler). 7430 setAlphabeticShortcut('c'); 7431 added = true; 7432 } 7433 7434 if (canPaste()) { 7435 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 7436 setOnMenuItemClickListener(handler). 7437 setAlphabeticShortcut('v'); 7438 added = true; 7439 } 7440 } else { 7441 MenuHandler handler = new MenuHandler(); 7442 7443 if (canSelectText()) { 7444 if (!hasPasswordTransformationMethod()) { 7445 // selectCurrentWord is not available on a password field and would return an 7446 // arbitrary 10-charater selection around pressed position. Discard it. 7447 // SelectAll is still useful to be able to clear the field using the delete key. 7448 menu.add(0, ID_START_SELECTING_TEXT, 0, com.android.internal.R.string.selectText). 7449 setOnMenuItemClickListener(handler); 7450 } 7451 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 7452 setOnMenuItemClickListener(handler). 7453 setAlphabeticShortcut('a'); 7454 added = true; 7455 } 7456 7457 if (mText instanceof Spanned) { 7458 int selStart = getSelectionStart(); 7459 int selEnd = getSelectionEnd(); 7460 7461 int min = Math.min(selStart, selEnd); 7462 int max = Math.max(selStart, selEnd); 7463 7464 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, 7465 URLSpan.class); 7466 if (urls.length == 1) { 7467 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7468 setOnMenuItemClickListener(handler); 7469 added = true; 7470 } 7471 } 7472 7473 if (canPaste()) { 7474 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 7475 setOnMenuItemClickListener(handler). 7476 setAlphabeticShortcut('v'); 7477 added = true; 7478 } 7479 7480 if (isInputMethodTarget()) { 7481 menu.add(1, ID_SWITCH_INPUT_METHOD, 0, com.android.internal.R.string.inputMethod). 7482 setOnMenuItemClickListener(handler); 7483 added = true; 7484 } 7485 7486 String word = getWordForDictionary(); 7487 if (word != null) { 7488 menu.add(1, ID_ADD_TO_DICTIONARY, 0, 7489 getContext().getString(com.android.internal.R.string.addToDictionary, word)). 7490 setOnMenuItemClickListener(handler); 7491 added = true; 7492 7493 } 7494 } 7495 7496 if (added) { 7497 hideControllers(); 7498 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7499 } 7500 } 7501 7502 /** 7503 * Returns whether this text view is a current input method target. The 7504 * default implementation just checks with {@link InputMethodManager}. 7505 */ 7506 public boolean isInputMethodTarget() { 7507 InputMethodManager imm = InputMethodManager.peekInstance(); 7508 return imm != null && imm.isActive(this); 7509 } 7510 7511 // Context menu entries 7512 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7513 private static final int ID_START_SELECTING_TEXT = android.R.id.startSelectingText; 7514 private static final int ID_CUT = android.R.id.cut; 7515 private static final int ID_COPY = android.R.id.copy; 7516 private static final int ID_PASTE = android.R.id.paste; 7517 private static final int ID_COPY_URL = android.R.id.copyUrl; 7518 private static final int ID_SWITCH_INPUT_METHOD = android.R.id.switchInputMethod; 7519 private static final int ID_ADD_TO_DICTIONARY = android.R.id.addToDictionary; 7520 7521 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7522 public boolean onMenuItemClick(MenuItem item) { 7523 return onTextContextMenuItem(item.getItemId()); 7524 } 7525 } 7526 7527 /** 7528 * Called when a context menu option for the text view is selected. Currently 7529 * this will be one of: {@link android.R.id#selectAll}, 7530 * {@link android.R.id#startSelectingText}, 7531 * {@link android.R.id#cut}, {@link android.R.id#copy}, 7532 * {@link android.R.id#paste}, {@link android.R.id#copyUrl}, 7533 * or {@link android.R.id#switchInputMethod}. 7534 */ 7535 public boolean onTextContextMenuItem(int id) { 7536 int min = 0; 7537 int max = mText.length(); 7538 7539 if (isFocused()) { 7540 final int selStart = getSelectionStart(); 7541 final int selEnd = getSelectionEnd(); 7542 7543 min = Math.max(0, Math.min(selStart, selEnd)); 7544 max = Math.max(0, Math.max(selStart, selEnd)); 7545 } 7546 7547 ClipboardManager clip = (ClipboardManager)getContext() 7548 .getSystemService(Context.CLIPBOARD_SERVICE); 7549 7550 switch (id) { 7551 case ID_SELECT_ALL: 7552 Selection.setSelection((Spannable) mText, 0, mText.length()); 7553 startTextSelectionMode(); 7554 getSelectionController().show(); 7555 return true; 7556 7557 case ID_START_SELECTING_TEXT: 7558 startTextSelectionMode(); 7559 getSelectionController().show(); 7560 return true; 7561 7562 case ID_CUT: 7563 clip.setText(mTransformed.subSequence(min, max)); 7564 ((Editable) mText).delete(min, max); 7565 stopTextSelectionMode(); 7566 return true; 7567 7568 case ID_COPY: 7569 clip.setText(mTransformed.subSequence(min, max)); 7570 stopTextSelectionMode(); 7571 return true; 7572 7573 case ID_PASTE: 7574 CharSequence paste = clip.getText(); 7575 7576 if (paste != null && paste.length() > 0) { 7577 long minMax = prepareSpacesAroundPaste(min, max, paste); 7578 min = extractRangeStartFromLong(minMax); 7579 max = extractRangeEndFromLong(minMax); 7580 Selection.setSelection((Spannable) mText, max); 7581 ((Editable) mText).replace(min, max, paste); 7582 stopTextSelectionMode(); 7583 } 7584 return true; 7585 7586 case ID_COPY_URL: 7587 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 7588 if (urls.length == 1) { 7589 clip.setText(urls[0].getURL()); 7590 } 7591 return true; 7592 7593 case ID_SWITCH_INPUT_METHOD: 7594 InputMethodManager imm = InputMethodManager.peekInstance(); 7595 if (imm != null) { 7596 imm.showInputMethodPicker(); 7597 } 7598 return true; 7599 7600 case ID_ADD_TO_DICTIONARY: 7601 String word = getWordForDictionary(); 7602 if (word != null) { 7603 Intent i = new Intent("com.android.settings.USER_DICTIONARY_INSERT"); 7604 i.putExtra("word", word); 7605 i.setFlags(i.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 7606 getContext().startActivity(i); 7607 } 7608 return true; 7609 } 7610 7611 return false; 7612 } 7613 7614 /** 7615 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 7616 * by [min, max] when replacing this region by paste. 7617 */ 7618 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 7619 // Paste adds/removes spaces before or after insertion as needed. 7620 if (Character.isSpaceChar(paste.charAt(0))) { 7621 if (min > 0 && Character.isSpaceChar(mTransformed.charAt(min - 1))) { 7622 // Two spaces at beginning of paste: remove one 7623 final int originalLength = mText.length(); 7624 ((Editable) mText).replace(min - 1, min, ""); 7625 // Due to filters, there is no garantee that exactly one character was 7626 // removed. Count instead. 7627 final int delta = mText.length() - originalLength; 7628 min += delta; 7629 max += delta; 7630 } 7631 } else { 7632 if (min > 0 && !Character.isSpaceChar(mTransformed.charAt(min - 1))) { 7633 // No space at beginning of paste: add one 7634 final int originalLength = mText.length(); 7635 ((Editable) mText).replace(min, min, " "); 7636 // Taking possible filters into account as above. 7637 final int delta = mText.length() - originalLength; 7638 min += delta; 7639 max += delta; 7640 } 7641 } 7642 7643 if (Character.isSpaceChar(paste.charAt(paste.length() - 1))) { 7644 if (max < mText.length() && Character.isSpaceChar(mTransformed.charAt(max))) { 7645 // Two spaces at end of paste: remove one 7646 ((Editable) mText).replace(max, max + 1, ""); 7647 } 7648 } else { 7649 if (max < mText.length() && !Character.isSpaceChar(mTransformed.charAt(max))) { 7650 // No space at end of paste: add one 7651 ((Editable) mText).replace(max, max, " "); 7652 } 7653 } 7654 return packRangeInLong(min, max); 7655 } 7656 7657 @Override 7658 public boolean performLongClick() { 7659 if (super.performLongClick()) { 7660 mEatTouchRelease = true; 7661 return true; 7662 } 7663 7664 return false; 7665 } 7666 7667 private void startTextSelectionMode() { 7668 if (!mIsInTextSelectionMode) { 7669 if (!hasSelectionController()) { 7670 Log.w(LOG_TAG, "TextView has no selection controller. Action mode cancelled."); 7671 return; 7672 } 7673 7674 if (!canSelectText() || !requestFocus()) { 7675 return; 7676 } 7677 7678 selectCurrentWord(); 7679 getSelectionController().show(); 7680 final InputMethodManager imm = (InputMethodManager) 7681 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 7682 imm.showSoftInput(this, 0, null); 7683 mIsInTextSelectionMode = true; 7684 } 7685 } 7686 7687 private void stopTextSelectionMode() { 7688 if (mIsInTextSelectionMode) { 7689 Selection.setSelection((Spannable) mText, getSelectionEnd()); 7690 hideSelectionModifierCursorController(); 7691 mIsInTextSelectionMode = false; 7692 } 7693 } 7694 7695 /** 7696 * A CursorController instance can be used to control a cursor in the text. 7697 * It is not used outside of {@link TextView}. 7698 * @hide 7699 */ 7700 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 7701 /** 7702 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 7703 * See also {@link #hide()}. 7704 */ 7705 public void show(); 7706 7707 /** 7708 * Hide the cursor controller from screen. 7709 * See also {@link #show()}. 7710 */ 7711 public void hide(); 7712 7713 /** 7714 * @return true if the CursorController is currently visible 7715 */ 7716 public boolean isShowing(); 7717 7718 /** 7719 * Update the controller's position. 7720 */ 7721 public void updatePosition(HandleView handle, int x, int y); 7722 7723 public void updatePosition(); 7724 7725 /** 7726 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 7727 * a chance to become active and/or visible. 7728 * @param event The touch event 7729 */ 7730 public boolean onTouchEvent(MotionEvent event); 7731 7732 /** 7733 * Called when the view is detached from window. Perform house keeping task, such as 7734 * stopping Runnable thread that would otherwise keep a reference on the context, thus 7735 * preventing the activity to be recycled. 7736 */ 7737 public void onDetached(); 7738 } 7739 7740 private class HandleView extends View { 7741 private boolean mPositionOnTop = false; 7742 private Drawable mDrawable; 7743 private PopupWindow mContainer; 7744 private int mPositionX; 7745 private int mPositionY; 7746 private CursorController mController; 7747 private boolean mIsDragging; 7748 private float mTouchToWindowOffsetX; 7749 private float mTouchToWindowOffsetY; 7750 private float mHotspotX; 7751 private float mHotspotY; 7752 private int mHeight; 7753 private float mTouchOffsetY; 7754 private int mLastParentX; 7755 private int mLastParentY; 7756 7757 public static final int LEFT = 0; 7758 public static final int CENTER = 1; 7759 public static final int RIGHT = 2; 7760 7761 public HandleView(CursorController controller, int pos) { 7762 super(TextView.this.mContext); 7763 mController = controller; 7764 mContainer = new PopupWindow(TextView.this.mContext, null, 7765 com.android.internal.R.attr.textSelectHandleWindowStyle); 7766 mContainer.setSplitTouchEnabled(true); 7767 mContainer.setClippingEnabled(false); 7768 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 7769 7770 setOrientation(pos); 7771 } 7772 7773 public void setOrientation(int pos) { 7774 int handleWidth; 7775 switch (pos) { 7776 case LEFT: { 7777 if (mSelectHandleLeft == null) { 7778 mSelectHandleLeft = mContext.getResources().getDrawable( 7779 mTextSelectHandleLeftRes); 7780 } 7781 mDrawable = mSelectHandleLeft; 7782 handleWidth = mDrawable.getIntrinsicWidth(); 7783 mHotspotX = (handleWidth * 3) / 4; 7784 break; 7785 } 7786 7787 case RIGHT: { 7788 if (mSelectHandleRight == null) { 7789 mSelectHandleRight = mContext.getResources().getDrawable( 7790 mTextSelectHandleRightRes); 7791 } 7792 mDrawable = mSelectHandleRight; 7793 handleWidth = mDrawable.getIntrinsicWidth(); 7794 mHotspotX = handleWidth / 4; 7795 break; 7796 } 7797 7798 case CENTER: 7799 default: { 7800 if (mSelectHandleCenter == null) { 7801 mSelectHandleCenter = mContext.getResources().getDrawable( 7802 mTextSelectHandleRes); 7803 } 7804 mDrawable = mSelectHandleCenter; 7805 handleWidth = mDrawable.getIntrinsicWidth(); 7806 mHotspotX = handleWidth / 2; 7807 break; 7808 } 7809 } 7810 7811 final int handleHeight = mDrawable.getIntrinsicHeight(); 7812 7813 mTouchOffsetY = -handleHeight * 0.3f; 7814 mHotspotY = 0; 7815 mHeight = handleHeight; 7816 invalidate(); 7817 } 7818 7819 @Override 7820 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 7821 setMeasuredDimension(mDrawable.getIntrinsicWidth(), 7822 mDrawable.getIntrinsicHeight()); 7823 } 7824 7825 public void show() { 7826 if (!isPositionVisible()) { 7827 hide(); 7828 return; 7829 } 7830 mContainer.setContentView(this); 7831 final int[] coords = mTempCoords; 7832 TextView.this.getLocationInWindow(coords); 7833 coords[0] += mPositionX; 7834 coords[1] += mPositionY; 7835 mContainer.showAtLocation(TextView.this, 0, coords[0], coords[1]); 7836 } 7837 7838 public void hide() { 7839 mIsDragging = false; 7840 mContainer.dismiss(); 7841 } 7842 7843 public boolean isShowing() { 7844 return mContainer.isShowing(); 7845 } 7846 7847 private boolean isPositionVisible() { 7848 // Always show a dragging handle. 7849 if (mIsDragging) { 7850 return true; 7851 } 7852 7853 if (isInBatchEditMode()) { 7854 return false; 7855 } 7856 7857 final int extendedPaddingTop = getExtendedPaddingTop(); 7858 final int extendedPaddingBottom = getExtendedPaddingBottom(); 7859 final int compoundPaddingLeft = getCompoundPaddingLeft(); 7860 final int compoundPaddingRight = getCompoundPaddingRight(); 7861 7862 final TextView hostView = TextView.this; 7863 final int left = 0; 7864 final int right = hostView.getWidth(); 7865 final int top = 0; 7866 final int bottom = hostView.getHeight(); 7867 7868 if (mTempRect == null) { 7869 mTempRect = new Rect(); 7870 } 7871 final Rect clip = mTempRect; 7872 clip.left = left + compoundPaddingLeft; 7873 clip.top = top + extendedPaddingTop; 7874 clip.right = right - compoundPaddingRight; 7875 clip.bottom = bottom - extendedPaddingBottom; 7876 7877 final ViewParent parent = hostView.getParent(); 7878 if (parent == null || !parent.getChildVisibleRect(hostView, clip, null)) { 7879 return false; 7880 } 7881 7882 final int[] coords = mTempCoords; 7883 hostView.getLocationInWindow(coords); 7884 final int posX = coords[0] + mPositionX + (int) mHotspotX; 7885 final int posY = coords[1] + mPositionY + (int) mHotspotY; 7886 7887 return posX >= clip.left && posX <= clip.right && 7888 posY >= clip.top && posY <= clip.bottom; 7889 } 7890 7891 private void moveTo(int x, int y) { 7892 mPositionX = x - TextView.this.mScrollX; 7893 mPositionY = y - TextView.this.mScrollY; 7894 if (isPositionVisible()) { 7895 int[] coords = null; 7896 if (mContainer.isShowing()) { 7897 coords = mTempCoords; 7898 TextView.this.getLocationInWindow(coords); 7899 mContainer.update(coords[0] + mPositionX, coords[1] + mPositionY, 7900 mRight - mLeft, mBottom - mTop); 7901 } else { 7902 show(); 7903 } 7904 7905 if (mIsDragging) { 7906 if (coords == null) { 7907 coords = mTempCoords; 7908 TextView.this.getLocationInWindow(coords); 7909 } 7910 if (coords[0] != mLastParentX || coords[1] != mLastParentY) { 7911 mTouchToWindowOffsetX += coords[0] - mLastParentX; 7912 mTouchToWindowOffsetY += coords[1] - mLastParentY; 7913 mLastParentX = coords[0]; 7914 mLastParentY = coords[1]; 7915 } 7916 } 7917 } else { 7918 hide(); 7919 } 7920 } 7921 7922 @Override 7923 public void onDraw(Canvas c) { 7924 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 7925 if (mPositionOnTop) { 7926 c.save(); 7927 c.rotate(180, (mRight - mLeft) / 2, (mBottom - mTop) / 2); 7928 mDrawable.draw(c); 7929 c.restore(); 7930 } else { 7931 mDrawable.draw(c); 7932 } 7933 } 7934 7935 @Override 7936 public boolean onTouchEvent(MotionEvent ev) { 7937 switch (ev.getActionMasked()) { 7938 case MotionEvent.ACTION_DOWN: { 7939 final float rawX = ev.getRawX(); 7940 final float rawY = ev.getRawY(); 7941 mTouchToWindowOffsetX = rawX - mPositionX; 7942 mTouchToWindowOffsetY = rawY - mPositionY; 7943 final int[] coords = mTempCoords; 7944 TextView.this.getLocationInWindow(coords); 7945 mLastParentX = coords[0]; 7946 mLastParentY = coords[1]; 7947 mIsDragging = true; 7948 break; 7949 } 7950 7951 case MotionEvent.ACTION_MOVE: { 7952 final float rawX = ev.getRawX(); 7953 final float rawY = ev.getRawY(); 7954 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 7955 final float newPosY = rawY - mTouchToWindowOffsetY + mHotspotY + mTouchOffsetY; 7956 7957 mController.updatePosition(this, Math.round(newPosX), Math.round(newPosY)); 7958 7959 break; 7960 } 7961 7962 case MotionEvent.ACTION_UP: 7963 case MotionEvent.ACTION_CANCEL: 7964 mIsDragging = false; 7965 } 7966 return true; 7967 } 7968 7969 public boolean isDragging() { 7970 return mIsDragging; 7971 } 7972 7973 void positionAtCursor(final int offset, boolean bottom) { 7974 final int width = mDrawable.getIntrinsicWidth(); 7975 final int height = mDrawable.getIntrinsicHeight(); 7976 final int line = mLayout.getLineForOffset(offset); 7977 final int lineTop = mLayout.getLineTop(line); 7978 final int lineBottom = mLayout.getLineBottom(line); 7979 7980 final Rect bounds = sCursorControllerTempRect; 7981 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - mHotspotX) 7982 + TextView.this.mScrollX; 7983 bounds.top = (bottom ? lineBottom : lineTop - mHeight) + TextView.this.mScrollY; 7984 7985 bounds.right = bounds.left + width; 7986 bounds.bottom = bounds.top + height; 7987 7988 convertFromViewportToContentCoordinates(bounds); 7989 moveTo(bounds.left, bounds.top); 7990 } 7991 } 7992 7993 private class InsertionPointCursorController implements CursorController { 7994 private static final int DELAY_BEFORE_FADE_OUT = 4100; 7995 7996 // The cursor controller image 7997 private final HandleView mHandle; 7998 7999 private final Runnable mHider = new Runnable() { 8000 public void run() { 8001 hide(); 8002 } 8003 }; 8004 8005 InsertionPointCursorController() { 8006 mHandle = new HandleView(this, HandleView.CENTER); 8007 } 8008 8009 public void show() { 8010 updatePosition(); 8011 mHandle.show(); 8012 hideDelayed(DELAY_BEFORE_FADE_OUT); 8013 } 8014 8015 public void hide() { 8016 mHandle.hide(); 8017 removeCallbacks(mHider); 8018 } 8019 8020 private void hideDelayed(int msec) { 8021 removeCallbacks(mHider); 8022 postDelayed(mHider, msec); 8023 } 8024 8025 public boolean isShowing() { 8026 return mHandle.isShowing(); 8027 } 8028 8029 public void updatePosition(HandleView handle, int x, int y) { 8030 final int previousOffset = getSelectionStart(); 8031 int offset = getHysteresisOffset(x, y, previousOffset); 8032 8033 if (offset != previousOffset) { 8034 Selection.setSelection((Spannable) mText, offset); 8035 updatePosition(); 8036 } 8037 hideDelayed(DELAY_BEFORE_FADE_OUT); 8038 } 8039 8040 public void updatePosition() { 8041 final int offset = getSelectionStart(); 8042 8043 if (offset < 0) { 8044 // Should never happen, safety check. 8045 Log.w(LOG_TAG, "Update cursor controller position called with no cursor"); 8046 hide(); 8047 return; 8048 } 8049 8050 mHandle.positionAtCursor(offset, true); 8051 } 8052 8053 public boolean onTouchEvent(MotionEvent ev) { 8054 return false; 8055 } 8056 8057 public void onTouchModeChanged(boolean isInTouchMode) { 8058 if (!isInTouchMode) { 8059 hide(); 8060 } 8061 } 8062 8063 @Override 8064 public void onDetached() { 8065 removeCallbacks(mHider); 8066 } 8067 } 8068 8069 private class SelectionModifierCursorController implements CursorController { 8070 // The cursor controller images 8071 private HandleView mStartHandle, mEndHandle; 8072 // The offsets of that last touch down event. Remembered to start selection there. 8073 private int mMinTouchOffset, mMaxTouchOffset; 8074 // Whether selection anchors are active 8075 private boolean mIsShowing; 8076 // Double tap detection 8077 private long mPreviousTapUpTime = 0; 8078 private int mPreviousTapPositionX; 8079 private int mPreviousTapPositionY; 8080 8081 SelectionModifierCursorController() { 8082 mStartHandle = new HandleView(this, HandleView.LEFT); 8083 mEndHandle = new HandleView(this, HandleView.RIGHT); 8084 resetTouchOffsets(); 8085 } 8086 8087 public void show() { 8088 if (isInBatchEditMode()) { 8089 return; 8090 } 8091 8092 mIsShowing = true; 8093 updatePosition(); 8094 mStartHandle.show(); 8095 mEndHandle.show(); 8096 hideInsertionPointCursorController(); 8097 } 8098 8099 public void hide() { 8100 mStartHandle.hide(); 8101 mEndHandle.hide(); 8102 mIsShowing = false; 8103 } 8104 8105 public boolean isShowing() { 8106 return mIsShowing; 8107 } 8108 8109 public void updatePosition(HandleView handle, int x, int y) { 8110 int selectionStart = getSelectionStart(); 8111 int selectionEnd = getSelectionEnd(); 8112 8113 final int previousOffset = handle == mStartHandle ? selectionStart : selectionEnd; 8114 int offset = getHysteresisOffset(x, y, previousOffset); 8115 8116 // Handle the case where start and end are swapped, making sure start <= end 8117 if (handle == mStartHandle) { 8118 if (selectionStart == offset || offset > selectionEnd) { 8119 return; // no change, no need to redraw; 8120 } 8121 // If the user "closes" the selection entirely they were probably trying to 8122 // select a single character. Help them out. 8123 if (offset == selectionEnd) { 8124 offset = selectionEnd - 1; 8125 } 8126 selectionStart = offset; 8127 } else { 8128 if (selectionEnd == offset || offset < selectionStart) { 8129 return; // no change, no need to redraw; 8130 } 8131 // If the user "closes" the selection entirely they were probably trying to 8132 // select a single character. Help them out. 8133 if (offset == selectionStart) { 8134 offset = selectionStart + 1; 8135 } 8136 selectionEnd = offset; 8137 } 8138 8139 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8140 updatePosition(); 8141 } 8142 8143 public void updatePosition() { 8144 if (!isShowing()) { 8145 return; 8146 } 8147 8148 final int selectionStart = getSelectionStart(); 8149 final int selectionEnd = getSelectionEnd(); 8150 8151 if ((selectionStart < 0) || (selectionEnd < 0)) { 8152 // Should never happen, safety check. 8153 Log.w(LOG_TAG, "Update selection controller position called with no cursor"); 8154 hide(); 8155 return; 8156 } 8157 8158 mStartHandle.positionAtCursor(selectionStart, true); 8159 mEndHandle.positionAtCursor(selectionEnd, true); 8160 } 8161 8162 public boolean onTouchEvent(MotionEvent event) { 8163 // This is done even when the View does not have focus, so that long presses can start 8164 // selection and tap can move cursor from this tap position. 8165 if (isTextEditable()) { 8166 switch (event.getActionMasked()) { 8167 case MotionEvent.ACTION_DOWN: 8168 final int x = (int) event.getX(); 8169 final int y = (int) event.getY(); 8170 8171 // Remember finger down position, to be able to start selection from there 8172 mMinTouchOffset = mMaxTouchOffset = getOffset(x, y); 8173 8174 // Double tap detection 8175 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 8176 if (duration <= ViewConfiguration.getDoubleTapTimeout()) { 8177 final int deltaX = x - mPreviousTapPositionX; 8178 final int deltaY = y - mPreviousTapPositionY; 8179 final int distanceSquared = deltaX * deltaX + deltaY * deltaY; 8180 final int doubleTapSlop = ViewConfiguration.get(getContext()).getScaledDoubleTapSlop(); 8181 final int slopSquared = doubleTapSlop * doubleTapSlop; 8182 if (distanceSquared < slopSquared) { 8183 startTextSelectionMode(); 8184 // prevents onTapUpEvent from opening a context menu with cut/copy 8185 mNoContextMenuOnUp = true; 8186 } 8187 } 8188 mPreviousTapPositionX = x; 8189 mPreviousTapPositionY = y; 8190 8191 break; 8192 8193 case MotionEvent.ACTION_POINTER_DOWN: 8194 case MotionEvent.ACTION_POINTER_UP: 8195 // Handle multi-point gestures. Keep min and max offset positions. 8196 // Only activated for devices that correctly handle multi-touch. 8197 if (mContext.getPackageManager().hasSystemFeature( 8198 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 8199 updateMinAndMaxOffsets(event); 8200 } 8201 break; 8202 8203 case MotionEvent.ACTION_UP: 8204 mPreviousTapUpTime = SystemClock.uptimeMillis(); 8205 break; 8206 } 8207 } 8208 return false; 8209 } 8210 8211 /** 8212 * @param event 8213 */ 8214 private void updateMinAndMaxOffsets(MotionEvent event) { 8215 int pointerCount = event.getPointerCount(); 8216 for (int index = 0; index < pointerCount; index++) { 8217 final int x = (int) event.getX(index); 8218 final int y = (int) event.getY(index); 8219 int offset = getOffset(x, y); 8220 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 8221 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 8222 } 8223 } 8224 8225 public int getMinTouchOffset() { 8226 return mMinTouchOffset; 8227 } 8228 8229 public int getMaxTouchOffset() { 8230 return mMaxTouchOffset; 8231 } 8232 8233 public void resetTouchOffsets() { 8234 mMinTouchOffset = mMaxTouchOffset = -1; 8235 } 8236 8237 /** 8238 * @return true iff this controller is currently used to move the selection start. 8239 */ 8240 public boolean isSelectionStartDragged() { 8241 return mStartHandle.isDragging(); 8242 } 8243 8244 public void onTouchModeChanged(boolean isInTouchMode) { 8245 if (!isInTouchMode) { 8246 hide(); 8247 } 8248 } 8249 8250 @Override 8251 public void onDetached() {} 8252 } 8253 8254 private void hideInsertionPointCursorController() { 8255 if (mInsertionPointCursorController != null) { 8256 mInsertionPointCursorController.hide(); 8257 } 8258 } 8259 8260 private void hideSelectionModifierCursorController() { 8261 if (mSelectionModifierCursorController != null) { 8262 mSelectionModifierCursorController.hide(); 8263 } 8264 } 8265 8266 private void hideControllers() { 8267 hideInsertionPointCursorController(); 8268 hideSelectionModifierCursorController(); 8269 } 8270 8271 private int getOffsetForHorizontal(int line, int x) { 8272 x -= getTotalPaddingLeft(); 8273 // Clamp the position to inside of the view. 8274 x = Math.max(0, x); 8275 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 8276 x += getScrollX(); 8277 return getLayout().getOffsetForHorizontal(line, x); 8278 } 8279 8280 /** 8281 * Get the offset character closest to the specified absolute position. 8282 * 8283 * @param x The horizontal absolute position of a point on screen 8284 * @param y The vertical absolute position of a point on screen 8285 * @return the character offset for the character whose position is closest to the specified 8286 * position. Returns -1 if there is no layout. 8287 * 8288 * @hide 8289 */ 8290 public int getOffset(int x, int y) { 8291 if (getLayout() == null) return -1; 8292 8293 y -= getTotalPaddingTop(); 8294 // Clamp the position to inside of the view. 8295 y = Math.max(0, y); 8296 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8297 y += getScrollY(); 8298 8299 final int line = getLayout().getLineForVertical(y); 8300 final int offset = getOffsetForHorizontal(line, x); 8301 return offset; 8302 } 8303 8304 int getHysteresisOffset(int x, int y, int previousOffset) { 8305 final Layout layout = getLayout(); 8306 if (layout == null) return -1; 8307 8308 y -= getTotalPaddingTop(); 8309 // Clamp the position to inside of the view. 8310 y = Math.max(0, y); 8311 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8312 y += getScrollY(); 8313 8314 int line = getLayout().getLineForVertical(y); 8315 8316 final int previousLine = layout.getLineForOffset(previousOffset); 8317 final int previousLineTop = layout.getLineTop(previousLine); 8318 final int previousLineBottom = layout.getLineBottom(previousLine); 8319 final int hysteresisThreshold = (previousLineBottom - previousLineTop) / 8; 8320 8321 // If new line is just before or after previous line and y position is less than 8322 // hysteresisThreshold away from previous line, keep cursor on previous line. 8323 if (((line == previousLine + 1) && ((y - previousLineBottom) < hysteresisThreshold)) || 8324 ((line == previousLine - 1) && ((previousLineTop - y) < hysteresisThreshold))) { 8325 line = previousLine; 8326 } 8327 8328 return getOffsetForHorizontal(line, x); 8329 } 8330 8331 /** 8332 * @return True if this view supports insertion handles. 8333 */ 8334 boolean hasInsertionController() { 8335 return mInsertionControllerEnabled; 8336 } 8337 8338 /** 8339 * @return True if this view supports selection handles. 8340 */ 8341 boolean hasSelectionController() { 8342 return mSelectionControllerEnabled; 8343 } 8344 8345 CursorController getInsertionController() { 8346 if (!mInsertionControllerEnabled) { 8347 return null; 8348 } 8349 8350 if (mInsertionPointCursorController == null) { 8351 mInsertionPointCursorController = new InsertionPointCursorController(); 8352 8353 final ViewTreeObserver observer = getViewTreeObserver(); 8354 if (observer != null) { 8355 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 8356 } 8357 } 8358 8359 return mInsertionPointCursorController; 8360 } 8361 8362 CursorController getSelectionController() { 8363 if (!mSelectionControllerEnabled) { 8364 return null; 8365 } 8366 8367 if (mSelectionModifierCursorController == null) { 8368 mSelectionModifierCursorController = new SelectionModifierCursorController(); 8369 8370 final ViewTreeObserver observer = getViewTreeObserver(); 8371 if (observer != null) { 8372 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 8373 } 8374 } 8375 8376 return mSelectionModifierCursorController; 8377 } 8378 8379 boolean isInBatchEditMode() { 8380 final InputMethodState ims = mInputMethodState; 8381 if (ims != null) { 8382 return ims.mBatchEditNesting > 0; 8383 } 8384 return mInBatchEditControllers; 8385 } 8386 8387 @ViewDebug.ExportedProperty 8388 private CharSequence mText; 8389 private CharSequence mTransformed; 8390 private BufferType mBufferType = BufferType.NORMAL; 8391 8392 private int mInputType = EditorInfo.TYPE_NULL; 8393 private CharSequence mHint; 8394 private Layout mHintLayout; 8395 8396 private KeyListener mInput; 8397 8398 private MovementMethod mMovement; 8399 private TransformationMethod mTransformation; 8400 private ChangeWatcher mChangeWatcher; 8401 8402 private ArrayList<TextWatcher> mListeners = null; 8403 8404 // display attributes 8405 private final TextPaint mTextPaint; 8406 private boolean mUserSetTextScaleX; 8407 private final Paint mHighlightPaint; 8408 private int mHighlightColor = 0xCC475925; 8409 private Layout mLayout; 8410 8411 private long mShowCursor; 8412 private Blink mBlink; 8413 private boolean mCursorVisible = true; 8414 8415 // Cursor Controllers. Null when disabled. 8416 private CursorController mInsertionPointCursorController; 8417 private CursorController mSelectionModifierCursorController; 8418 private boolean mInsertionControllerEnabled; 8419 private boolean mSelectionControllerEnabled; 8420 private boolean mInBatchEditControllers; 8421 private boolean mIsInTextSelectionMode = false; 8422 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 8423 // select from the current cursor position. Otherwise, select from long pressed position. 8424 private boolean mDPadCenterIsDown = false; 8425 private boolean mEnterKeyIsDown = false; 8426 private boolean mContextMenuTriggeredByKey = false; 8427 // Created once and shared by different CursorController helper methods. 8428 // Only one cursor controller is active at any time which prevent race conditions. 8429 private static Rect sCursorControllerTempRect = new Rect(); 8430 8431 private boolean mSelectAllOnFocus = false; 8432 8433 private int mGravity = Gravity.TOP | Gravity.LEFT; 8434 private boolean mHorizontallyScrolling; 8435 8436 private int mAutoLinkMask; 8437 private boolean mLinksClickable = true; 8438 8439 private float mSpacingMult = 1; 8440 private float mSpacingAdd = 0; 8441 8442 private static final int LINES = 1; 8443 private static final int EMS = LINES; 8444 private static final int PIXELS = 2; 8445 8446 private int mMaximum = Integer.MAX_VALUE; 8447 private int mMaxMode = LINES; 8448 private int mMinimum = 0; 8449 private int mMinMode = LINES; 8450 8451 private int mMaxWidth = Integer.MAX_VALUE; 8452 private int mMaxWidthMode = PIXELS; 8453 private int mMinWidth = 0; 8454 private int mMinWidthMode = PIXELS; 8455 8456 private boolean mSingleLine; 8457 private int mDesiredHeightAtMeasure = -1; 8458 private boolean mIncludePad = true; 8459 8460 // tmp primitives, so we don't alloc them on each draw 8461 private Path mHighlightPath; 8462 private boolean mHighlightPathBogus = true; 8463 private static final RectF sTempRect = new RectF(); 8464 8465 // XXX should be much larger 8466 private static final int VERY_WIDE = 16384; 8467 8468 private static final int BLINK = 500; 8469 8470 private static final int ANIMATED_SCROLL_GAP = 250; 8471 private long mLastScroll; 8472 private Scroller mScroller = null; 8473 8474 private BoringLayout.Metrics mBoring; 8475 private BoringLayout.Metrics mHintBoring; 8476 8477 private BoringLayout mSavedLayout, mSavedHintLayout; 8478 8479 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 8480 private InputFilter[] mFilters = NO_FILTERS; 8481 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 8482 } 8483
