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