Editor.java revision acb69bb909d098cea284df47d794c17171d84c91
1/* 2 * Copyright (C) 2012 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 17package android.widget; 18 19import android.R; 20import android.content.ClipData; 21import android.content.ClipData.Item; 22import android.content.Context; 23import android.content.Intent; 24import android.content.pm.PackageManager; 25import android.content.res.TypedArray; 26import android.graphics.Canvas; 27import android.graphics.Color; 28import android.graphics.Paint; 29import android.graphics.Path; 30import android.graphics.Rect; 31import android.graphics.RectF; 32import android.graphics.drawable.Drawable; 33import android.inputmethodservice.ExtractEditText; 34import android.os.Bundle; 35import android.os.Handler; 36import android.os.SystemClock; 37import android.provider.Settings; 38import android.text.DynamicLayout; 39import android.text.Editable; 40import android.text.InputType; 41import android.text.Layout; 42import android.text.ParcelableSpan; 43import android.text.Selection; 44import android.text.SpanWatcher; 45import android.text.Spannable; 46import android.text.SpannableStringBuilder; 47import android.text.Spanned; 48import android.text.StaticLayout; 49import android.text.TextUtils; 50import android.text.TextWatcher; 51import android.text.method.KeyListener; 52import android.text.method.MetaKeyKeyListener; 53import android.text.method.MovementMethod; 54import android.text.method.PasswordTransformationMethod; 55import android.text.method.WordIterator; 56import android.text.style.EasyEditSpan; 57import android.text.style.SuggestionRangeSpan; 58import android.text.style.SuggestionSpan; 59import android.text.style.TextAppearanceSpan; 60import android.text.style.URLSpan; 61import android.util.DisplayMetrics; 62import android.util.Log; 63import android.view.ActionMode; 64import android.view.ActionMode.Callback; 65import android.view.DisplayList; 66import android.view.DragEvent; 67import android.view.Gravity; 68import android.view.HardwareCanvas; 69import android.view.LayoutInflater; 70import android.view.Menu; 71import android.view.MenuItem; 72import android.view.MotionEvent; 73import android.view.View; 74import android.view.ViewConfiguration; 75import android.view.ViewGroup; 76import android.view.View.DragShadowBuilder; 77import android.view.View.OnClickListener; 78import android.view.ViewGroup.LayoutParams; 79import android.view.ViewParent; 80import android.view.ViewTreeObserver; 81import android.view.WindowManager; 82import android.view.inputmethod.CorrectionInfo; 83import android.view.inputmethod.EditorInfo; 84import android.view.inputmethod.ExtractedText; 85import android.view.inputmethod.ExtractedTextRequest; 86import android.view.inputmethod.InputConnection; 87import android.view.inputmethod.InputMethodManager; 88import android.widget.AdapterView.OnItemClickListener; 89import android.widget.TextView.Drawables; 90import android.widget.TextView.OnEditorActionListener; 91 92import com.android.internal.util.ArrayUtils; 93import com.android.internal.widget.EditableInputConnection; 94 95import java.text.BreakIterator; 96import java.util.Arrays; 97import java.util.Comparator; 98import java.util.HashMap; 99 100/** 101 * Helper class used by TextView to handle editable text views. 102 * 103 * @hide 104 */ 105public class Editor { 106 static final int BLINK = 500; 107 private static final float[] TEMP_POSITION = new float[2]; 108 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 109 110 // Cursor Controllers. 111 InsertionPointCursorController mInsertionPointCursorController; 112 SelectionModifierCursorController mSelectionModifierCursorController; 113 ActionMode mSelectionActionMode; 114 boolean mInsertionControllerEnabled; 115 boolean mSelectionControllerEnabled; 116 117 // Used to highlight a word when it is corrected by the IME 118 CorrectionHighlighter mCorrectionHighlighter; 119 120 InputContentType mInputContentType; 121 InputMethodState mInputMethodState; 122 123 DisplayList[] mTextDisplayLists; 124 125 boolean mFrozenWithFocus; 126 boolean mSelectionMoved; 127 boolean mTouchFocusSelected; 128 129 KeyListener mKeyListener; 130 int mInputType = EditorInfo.TYPE_NULL; 131 132 boolean mDiscardNextActionUp; 133 boolean mIgnoreActionUpEvent; 134 135 long mShowCursor; 136 Blink mBlink; 137 138 boolean mCursorVisible = true; 139 boolean mSelectAllOnFocus; 140 boolean mTextIsSelectable; 141 142 CharSequence mError; 143 boolean mErrorWasChanged; 144 ErrorPopup mErrorPopup; 145 /** 146 * This flag is set if the TextView tries to display an error before it 147 * is attached to the window (so its position is still unknown). 148 * It causes the error to be shown later, when onAttachedToWindow() 149 * is called. 150 */ 151 boolean mShowErrorAfterAttach; 152 153 boolean mInBatchEditControllers; 154 155 SuggestionsPopupWindow mSuggestionsPopupWindow; 156 SuggestionRangeSpan mSuggestionRangeSpan; 157 Runnable mShowSuggestionRunnable; 158 159 final Drawable[] mCursorDrawable = new Drawable[2]; 160 int mCursorCount; // Current number of used mCursorDrawable: 0 (resource=0), 1 or 2 (split) 161 162 private Drawable mSelectHandleLeft; 163 private Drawable mSelectHandleRight; 164 private Drawable mSelectHandleCenter; 165 166 // Global listener that detects changes in the global position of the TextView 167 private PositionListener mPositionListener; 168 169 float mLastDownPositionX, mLastDownPositionY; 170 Callback mCustomSelectionActionModeCallback; 171 172 // Set when this TextView gained focus with some text selected. Will start selection mode. 173 boolean mCreatedWithASelection; 174 175 private EasyEditSpanController mEasyEditSpanController; 176 177 WordIterator mWordIterator; 178 SpellChecker mSpellChecker; 179 180 private Rect mTempRect; 181 182 private TextView mTextView; 183 184 Editor(TextView textView) { 185 mTextView = textView; 186 mEasyEditSpanController = new EasyEditSpanController(); 187 mTextView.addTextChangedListener(mEasyEditSpanController); 188 } 189 190 void onAttachedToWindow() { 191 if (mShowErrorAfterAttach) { 192 showError(); 193 mShowErrorAfterAttach = false; 194 } 195 196 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 197 // No need to create the controller. 198 // The get method will add the listener on controller creation. 199 if (mInsertionPointCursorController != null) { 200 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 201 } 202 if (mSelectionModifierCursorController != null) { 203 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 204 } 205 updateSpellCheckSpans(0, mTextView.getText().length(), 206 true /* create the spell checker if needed */); 207 } 208 209 void onDetachedFromWindow() { 210 if (mError != null) { 211 hideError(); 212 } 213 214 if (mBlink != null) { 215 mBlink.removeCallbacks(mBlink); 216 } 217 218 if (mInsertionPointCursorController != null) { 219 mInsertionPointCursorController.onDetached(); 220 } 221 222 if (mSelectionModifierCursorController != null) { 223 mSelectionModifierCursorController.onDetached(); 224 } 225 226 if (mShowSuggestionRunnable != null) { 227 mTextView.removeCallbacks(mShowSuggestionRunnable); 228 } 229 230 invalidateTextDisplayList(); 231 232 if (mSpellChecker != null) { 233 mSpellChecker.closeSession(); 234 // Forces the creation of a new SpellChecker next time this window is created. 235 // Will handle the cases where the settings has been changed in the meantime. 236 mSpellChecker = null; 237 } 238 239 hideControllers(); 240 } 241 242 private void showError() { 243 if (mTextView.getWindowToken() == null) { 244 mShowErrorAfterAttach = true; 245 return; 246 } 247 248 if (mErrorPopup == null) { 249 LayoutInflater inflater = LayoutInflater.from(mTextView.getContext()); 250 final TextView err = (TextView) inflater.inflate( 251 com.android.internal.R.layout.textview_hint, null); 252 253 final float scale = mTextView.getResources().getDisplayMetrics().density; 254 mErrorPopup = new ErrorPopup(err, (int)(200 * scale + 0.5f), (int)(50 * scale + 0.5f)); 255 mErrorPopup.setFocusable(false); 256 // The user is entering text, so the input method is needed. We 257 // don't want the popup to be displayed on top of it. 258 mErrorPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 259 } 260 261 TextView tv = (TextView) mErrorPopup.getContentView(); 262 chooseSize(mErrorPopup, mError, tv); 263 tv.setText(mError); 264 265 mErrorPopup.showAsDropDown(mTextView, getErrorX(), getErrorY()); 266 mErrorPopup.fixDirection(mErrorPopup.isAboveAnchor()); 267 } 268 269 public void setError(CharSequence error, Drawable icon) { 270 mError = TextUtils.stringOrSpannedString(error); 271 mErrorWasChanged = true; 272 final Drawables dr = mTextView.mDrawables; 273 if (dr != null) { 274 switch (mTextView.getResolvedLayoutDirection()) { 275 default: 276 case View.LAYOUT_DIRECTION_LTR: 277 mTextView.setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 278 dr.mDrawableBottom); 279 break; 280 case View.LAYOUT_DIRECTION_RTL: 281 mTextView.setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 282 dr.mDrawableBottom); 283 break; 284 } 285 } else { 286 mTextView.setCompoundDrawables(null, null, icon, null); 287 } 288 289 if (mError == null) { 290 if (mErrorPopup != null) { 291 if (mErrorPopup.isShowing()) { 292 mErrorPopup.dismiss(); 293 } 294 295 mErrorPopup = null; 296 } 297 } else { 298 if (mTextView.isFocused()) { 299 showError(); 300 } 301 } 302 } 303 304 private void hideError() { 305 if (mErrorPopup != null) { 306 if (mErrorPopup.isShowing()) { 307 mErrorPopup.dismiss(); 308 } 309 } 310 311 mShowErrorAfterAttach = false; 312 } 313 314 /** 315 * Returns the Y offset to make the pointy top of the error point 316 * at the middle of the error icon. 317 */ 318 private int getErrorX() { 319 /* 320 * The "25" is the distance between the point and the right edge 321 * of the background 322 */ 323 final float scale = mTextView.getResources().getDisplayMetrics().density; 324 325 final Drawables dr = mTextView.mDrawables; 326 return mTextView.getWidth() - mErrorPopup.getWidth() - mTextView.getPaddingRight() - 327 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 328 } 329 330 /** 331 * Returns the Y offset to make the pointy top of the error point 332 * at the bottom of the error icon. 333 */ 334 private int getErrorY() { 335 /* 336 * Compound, not extended, because the icon is not clipped 337 * if the text height is smaller. 338 */ 339 final int compoundPaddingTop = mTextView.getCompoundPaddingTop(); 340 int vspace = mTextView.getBottom() - mTextView.getTop() - 341 mTextView.getCompoundPaddingBottom() - compoundPaddingTop; 342 343 final Drawables dr = mTextView.mDrawables; 344 int icontop = compoundPaddingTop + 345 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 346 347 /* 348 * The "2" is the distance between the point and the top edge 349 * of the background. 350 */ 351 final float scale = mTextView.getResources().getDisplayMetrics().density; 352 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - mTextView.getHeight() - 353 (int) (2 * scale + 0.5f); 354 } 355 356 void createInputContentTypeIfNeeded() { 357 if (mInputContentType == null) { 358 mInputContentType = new InputContentType(); 359 } 360 } 361 362 void createInputMethodStateIfNeeded() { 363 if (mInputMethodState == null) { 364 mInputMethodState = new InputMethodState(); 365 } 366 } 367 368 boolean isCursorVisible() { 369 // The default value is true, even when there is no associated Editor 370 return mCursorVisible && mTextView.isTextEditable(); 371 } 372 373 void prepareCursorControllers() { 374 boolean windowSupportsHandles = false; 375 376 ViewGroup.LayoutParams params = mTextView.getRootView().getLayoutParams(); 377 if (params instanceof WindowManager.LayoutParams) { 378 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 379 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 380 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 381 } 382 383 boolean enabled = windowSupportsHandles && mTextView.getLayout() != null; 384 mInsertionControllerEnabled = enabled && isCursorVisible(); 385 mSelectionControllerEnabled = enabled && mTextView.textCanBeSelected(); 386 387 if (!mInsertionControllerEnabled) { 388 hideInsertionPointCursorController(); 389 if (mInsertionPointCursorController != null) { 390 mInsertionPointCursorController.onDetached(); 391 mInsertionPointCursorController = null; 392 } 393 } 394 395 if (!mSelectionControllerEnabled) { 396 stopSelectionActionMode(); 397 if (mSelectionModifierCursorController != null) { 398 mSelectionModifierCursorController.onDetached(); 399 mSelectionModifierCursorController = null; 400 } 401 } 402 } 403 404 private void hideInsertionPointCursorController() { 405 if (mInsertionPointCursorController != null) { 406 mInsertionPointCursorController.hide(); 407 } 408 } 409 410 /** 411 * Hides the insertion controller and stops text selection mode, hiding the selection controller 412 */ 413 void hideControllers() { 414 hideCursorControllers(); 415 hideSpanControllers(); 416 } 417 418 private void hideSpanControllers() { 419 if (mEasyEditSpanController != null) { 420 mEasyEditSpanController.hide(); 421 } 422 } 423 424 private void hideCursorControllers() { 425 if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) { 426 // Should be done before hide insertion point controller since it triggers a show of it 427 mSuggestionsPopupWindow.hide(); 428 } 429 hideInsertionPointCursorController(); 430 stopSelectionActionMode(); 431 } 432 433 /** 434 * Create new SpellCheckSpans on the modified region. 435 */ 436 private void updateSpellCheckSpans(int start, int end, boolean createSpellChecker) { 437 if (mTextView.isTextEditable() && mTextView.isSuggestionsEnabled() && 438 !(mTextView instanceof ExtractEditText)) { 439 if (mSpellChecker == null && createSpellChecker) { 440 mSpellChecker = new SpellChecker(mTextView); 441 } 442 if (mSpellChecker != null) { 443 mSpellChecker.spellCheck(start, end); 444 } 445 } 446 } 447 448 void onScreenStateChanged(int screenState) { 449 switch (screenState) { 450 case View.SCREEN_STATE_ON: 451 resumeBlink(); 452 break; 453 case View.SCREEN_STATE_OFF: 454 suspendBlink(); 455 break; 456 } 457 } 458 459 private void suspendBlink() { 460 if (mBlink != null) { 461 mBlink.cancel(); 462 } 463 } 464 465 private void resumeBlink() { 466 if (mBlink != null) { 467 mBlink.uncancel(); 468 makeBlink(); 469 } 470 } 471 472 void adjustInputType(boolean password, boolean passwordInputType, 473 boolean webPasswordInputType, boolean numberPasswordInputType) { 474 // mInputType has been set from inputType, possibly modified by mInputMethod. 475 // Specialize mInputType to [web]password if we have a text class and the original input 476 // type was a password. 477 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 478 if (password || passwordInputType) { 479 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 480 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 481 } 482 if (webPasswordInputType) { 483 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 484 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 485 } 486 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 487 if (numberPasswordInputType) { 488 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 489 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 490 } 491 } 492 } 493 494 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 495 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 496 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 497 498 int defaultWidthInPixels = mTextView.getResources().getDimensionPixelSize( 499 com.android.internal.R.dimen.textview_error_popup_default_width); 500 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 501 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 502 float max = 0; 503 for (int i = 0; i < l.getLineCount(); i++) { 504 max = Math.max(max, l.getLineWidth(i)); 505 } 506 507 /* 508 * Now set the popup size to be big enough for the text plus the border capped 509 * to DEFAULT_MAX_POPUP_WIDTH 510 */ 511 pop.setWidth(wid + (int) Math.ceil(max)); 512 pop.setHeight(ht + l.getHeight()); 513 } 514 515 void setFrame() { 516 if (mErrorPopup != null) { 517 TextView tv = (TextView) mErrorPopup.getContentView(); 518 chooseSize(mErrorPopup, mError, tv); 519 mErrorPopup.update(mTextView, getErrorX(), getErrorY(), 520 mErrorPopup.getWidth(), mErrorPopup.getHeight()); 521 } 522 } 523 524 /** 525 * Unlike {@link TextView#textCanBeSelected()}, this method is based on the <i>current</i> state 526 * of the TextView. textCanBeSelected() has to be true (this is one of the conditions to have 527 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 528 */ 529 private boolean canSelectText() { 530 return hasSelectionController() && mTextView.getText().length() != 0; 531 } 532 533 /** 534 * It would be better to rely on the input type for everything. A password inputType should have 535 * a password transformation. We should hence use isPasswordInputType instead of this method. 536 * 537 * We should: 538 * - Call setInputType in setKeyListener instead of changing the input type directly (which 539 * would install the correct transformation). 540 * - Refuse the installation of a non-password transformation in setTransformation if the input 541 * type is password. 542 * 543 * However, this is like this for legacy reasons and we cannot break existing apps. This method 544 * is useful since it matches what the user can see (obfuscated text or not). 545 * 546 * @return true if the current transformation method is of the password type. 547 */ 548 private boolean hasPasswordTransformationMethod() { 549 return mTextView.getTransformationMethod() instanceof PasswordTransformationMethod; 550 } 551 552 /** 553 * Adjusts selection to the word under last touch offset. 554 * Return true if the operation was successfully performed. 555 */ 556 private boolean selectCurrentWord() { 557 if (!canSelectText()) { 558 return false; 559 } 560 561 if (hasPasswordTransformationMethod()) { 562 // Always select all on a password field. 563 // Cut/copy menu entries are not available for passwords, but being able to select all 564 // is however useful to delete or paste to replace the entire content. 565 return mTextView.selectAllText(); 566 } 567 568 int inputType = mTextView.getInputType(); 569 int klass = inputType & InputType.TYPE_MASK_CLASS; 570 int variation = inputType & InputType.TYPE_MASK_VARIATION; 571 572 // Specific text field types: select the entire text for these 573 if (klass == InputType.TYPE_CLASS_NUMBER || 574 klass == InputType.TYPE_CLASS_PHONE || 575 klass == InputType.TYPE_CLASS_DATETIME || 576 variation == InputType.TYPE_TEXT_VARIATION_URI || 577 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 578 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 579 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 580 return mTextView.selectAllText(); 581 } 582 583 long lastTouchOffsets = getLastTouchOffsets(); 584 final int minOffset = TextUtils.unpackRangeStartFromLong(lastTouchOffsets); 585 final int maxOffset = TextUtils.unpackRangeEndFromLong(lastTouchOffsets); 586 587 // Safety check in case standard touch event handling has been bypassed 588 if (minOffset < 0 || minOffset >= mTextView.getText().length()) return false; 589 if (maxOffset < 0 || maxOffset >= mTextView.getText().length()) return false; 590 591 int selectionStart, selectionEnd; 592 593 // If a URLSpan (web address, email, phone...) is found at that position, select it. 594 URLSpan[] urlSpans = ((Spanned) mTextView.getText()). 595 getSpans(minOffset, maxOffset, URLSpan.class); 596 if (urlSpans.length >= 1) { 597 URLSpan urlSpan = urlSpans[0]; 598 selectionStart = ((Spanned) mTextView.getText()).getSpanStart(urlSpan); 599 selectionEnd = ((Spanned) mTextView.getText()).getSpanEnd(urlSpan); 600 } else { 601 final WordIterator wordIterator = getWordIterator(); 602 wordIterator.setCharSequence(mTextView.getText(), minOffset, maxOffset); 603 604 selectionStart = wordIterator.getBeginning(minOffset); 605 selectionEnd = wordIterator.getEnd(maxOffset); 606 607 if (selectionStart == BreakIterator.DONE || selectionEnd == BreakIterator.DONE || 608 selectionStart == selectionEnd) { 609 // Possible when the word iterator does not properly handle the text's language 610 long range = getCharRange(minOffset); 611 selectionStart = TextUtils.unpackRangeStartFromLong(range); 612 selectionEnd = TextUtils.unpackRangeEndFromLong(range); 613 } 614 } 615 616 Selection.setSelection((Spannable) mTextView.getText(), selectionStart, selectionEnd); 617 return selectionEnd > selectionStart; 618 } 619 620 void onLocaleChanged() { 621 // Will be re-created on demand in getWordIterator with the proper new locale 622 mWordIterator = null; 623 } 624 625 /** 626 * @hide 627 */ 628 public WordIterator getWordIterator() { 629 if (mWordIterator == null) { 630 mWordIterator = new WordIterator(mTextView.getTextServicesLocale()); 631 } 632 return mWordIterator; 633 } 634 635 private long getCharRange(int offset) { 636 final int textLength = mTextView.getText().length(); 637 if (offset + 1 < textLength) { 638 final char currentChar = mTextView.getText().charAt(offset); 639 final char nextChar = mTextView.getText().charAt(offset + 1); 640 if (Character.isSurrogatePair(currentChar, nextChar)) { 641 return TextUtils.packRangeInLong(offset, offset + 2); 642 } 643 } 644 if (offset < textLength) { 645 return TextUtils.packRangeInLong(offset, offset + 1); 646 } 647 if (offset - 2 >= 0) { 648 final char previousChar = mTextView.getText().charAt(offset - 1); 649 final char previousPreviousChar = mTextView.getText().charAt(offset - 2); 650 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 651 return TextUtils.packRangeInLong(offset - 2, offset); 652 } 653 } 654 if (offset - 1 >= 0) { 655 return TextUtils.packRangeInLong(offset - 1, offset); 656 } 657 return TextUtils.packRangeInLong(offset, offset); 658 } 659 660 private boolean touchPositionIsInSelection() { 661 int selectionStart = mTextView.getSelectionStart(); 662 int selectionEnd = mTextView.getSelectionEnd(); 663 664 if (selectionStart == selectionEnd) { 665 return false; 666 } 667 668 if (selectionStart > selectionEnd) { 669 int tmp = selectionStart; 670 selectionStart = selectionEnd; 671 selectionEnd = tmp; 672 Selection.setSelection((Spannable) mTextView.getText(), selectionStart, selectionEnd); 673 } 674 675 SelectionModifierCursorController selectionController = getSelectionController(); 676 int minOffset = selectionController.getMinTouchOffset(); 677 int maxOffset = selectionController.getMaxTouchOffset(); 678 679 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 680 } 681 682 private PositionListener getPositionListener() { 683 if (mPositionListener == null) { 684 mPositionListener = new PositionListener(); 685 } 686 return mPositionListener; 687 } 688 689 private interface TextViewPositionListener { 690 public void updatePosition(int parentPositionX, int parentPositionY, 691 boolean parentPositionChanged, boolean parentScrolled); 692 } 693 694 private boolean isPositionVisible(int positionX, int positionY) { 695 synchronized (TEMP_POSITION) { 696 final float[] position = TEMP_POSITION; 697 position[0] = positionX; 698 position[1] = positionY; 699 View view = mTextView; 700 701 while (view != null) { 702 if (view != mTextView) { 703 // Local scroll is already taken into account in positionX/Y 704 position[0] -= view.getScrollX(); 705 position[1] -= view.getScrollY(); 706 } 707 708 if (position[0] < 0 || position[1] < 0 || 709 position[0] > view.getWidth() || position[1] > view.getHeight()) { 710 return false; 711 } 712 713 if (!view.getMatrix().isIdentity()) { 714 view.getMatrix().mapPoints(position); 715 } 716 717 position[0] += view.getLeft(); 718 position[1] += view.getTop(); 719 720 final ViewParent parent = view.getParent(); 721 if (parent instanceof View) { 722 view = (View) parent; 723 } else { 724 // We've reached the ViewRoot, stop iterating 725 view = null; 726 } 727 } 728 } 729 730 // We've been able to walk up the view hierarchy and the position was never clipped 731 return true; 732 } 733 734 private boolean isOffsetVisible(int offset) { 735 Layout layout = mTextView.getLayout(); 736 final int line = layout.getLineForOffset(offset); 737 final int lineBottom = layout.getLineBottom(line); 738 final int primaryHorizontal = (int) layout.getPrimaryHorizontal(offset); 739 return isPositionVisible(primaryHorizontal + mTextView.viewportToContentHorizontalOffset(), 740 lineBottom + mTextView.viewportToContentVerticalOffset()); 741 } 742 743 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 744 * in the view. Returns false when the position is in the empty space of left/right of text. 745 */ 746 private boolean isPositionOnText(float x, float y) { 747 Layout layout = mTextView.getLayout(); 748 if (layout == null) return false; 749 750 final int line = mTextView.getLineAtCoordinate(y); 751 x = mTextView.convertToLocalHorizontalCoordinate(x); 752 753 if (x < layout.getLineLeft(line)) return false; 754 if (x > layout.getLineRight(line)) return false; 755 return true; 756 } 757 758 public boolean performLongClick(boolean handled) { 759 // Long press in empty space moves cursor and shows the Paste affordance if available. 760 if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 761 mInsertionControllerEnabled) { 762 final int offset = mTextView.getOffsetForPosition(mLastDownPositionX, 763 mLastDownPositionY); 764 stopSelectionActionMode(); 765 Selection.setSelection((Spannable) mTextView.getText(), offset); 766 getInsertionController().showWithActionPopup(); 767 handled = true; 768 } 769 770 if (!handled && mSelectionActionMode != null) { 771 if (touchPositionIsInSelection()) { 772 // Start a drag 773 final int start = mTextView.getSelectionStart(); 774 final int end = mTextView.getSelectionEnd(); 775 CharSequence selectedText = mTextView.getTransformedText(start, end); 776 ClipData data = ClipData.newPlainText(null, selectedText); 777 DragLocalState localState = new DragLocalState(mTextView, start, end); 778 mTextView.startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 779 stopSelectionActionMode(); 780 } else { 781 getSelectionController().hide(); 782 selectCurrentWord(); 783 getSelectionController().show(); 784 } 785 handled = true; 786 } 787 788 // Start a new selection 789 if (!handled) { 790 handled = startSelectionActionMode(); 791 } 792 793 return handled; 794 } 795 796 private long getLastTouchOffsets() { 797 SelectionModifierCursorController selectionController = getSelectionController(); 798 final int minOffset = selectionController.getMinTouchOffset(); 799 final int maxOffset = selectionController.getMaxTouchOffset(); 800 return TextUtils.packRangeInLong(minOffset, maxOffset); 801 } 802 803 void onFocusChanged(boolean focused, int direction) { 804 mShowCursor = SystemClock.uptimeMillis(); 805 ensureEndedBatchEdit(); 806 807 if (focused) { 808 int selStart = mTextView.getSelectionStart(); 809 int selEnd = mTextView.getSelectionEnd(); 810 811 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 812 // mode for these, unless there was a specific selection already started. 813 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 814 selEnd == mTextView.getText().length(); 815 816 mCreatedWithASelection = mFrozenWithFocus && mTextView.hasSelection() && 817 !isFocusHighlighted; 818 819 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 820 // If a tap was used to give focus to that view, move cursor at tap position. 821 // Has to be done before onTakeFocus, which can be overloaded. 822 final int lastTapPosition = getLastTapPosition(); 823 if (lastTapPosition >= 0) { 824 Selection.setSelection((Spannable) mTextView.getText(), lastTapPosition); 825 } 826 827 // Note this may have to be moved out of the Editor class 828 MovementMethod mMovement = mTextView.getMovementMethod(); 829 if (mMovement != null) { 830 mMovement.onTakeFocus(mTextView, (Spannable) mTextView.getText(), direction); 831 } 832 833 // The DecorView does not have focus when the 'Done' ExtractEditText button is 834 // pressed. Since it is the ViewAncestor's mView, it requests focus before 835 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 836 // This special case ensure that we keep current selection in that case. 837 // It would be better to know why the DecorView does not have focus at that time. 838 if (((mTextView instanceof ExtractEditText) || mSelectionMoved) && 839 selStart >= 0 && selEnd >= 0) { 840 /* 841 * Someone intentionally set the selection, so let them 842 * do whatever it is that they wanted to do instead of 843 * the default on-focus behavior. We reset the selection 844 * here instead of just skipping the onTakeFocus() call 845 * because some movement methods do something other than 846 * just setting the selection in theirs and we still 847 * need to go through that path. 848 */ 849 Selection.setSelection((Spannable) mTextView.getText(), selStart, selEnd); 850 } 851 852 if (mSelectAllOnFocus) { 853 mTextView.selectAllText(); 854 } 855 856 mTouchFocusSelected = true; 857 } 858 859 mFrozenWithFocus = false; 860 mSelectionMoved = false; 861 862 if (mError != null) { 863 showError(); 864 } 865 866 makeBlink(); 867 } else { 868 if (mError != null) { 869 hideError(); 870 } 871 // Don't leave us in the middle of a batch edit. 872 mTextView.onEndBatchEdit(); 873 874 if (mTextView instanceof ExtractEditText) { 875 // terminateTextSelectionMode removes selection, which we want to keep when 876 // ExtractEditText goes out of focus. 877 final int selStart = mTextView.getSelectionStart(); 878 final int selEnd = mTextView.getSelectionEnd(); 879 hideControllers(); 880 Selection.setSelection((Spannable) mTextView.getText(), selStart, selEnd); 881 } else { 882 hideControllers(); 883 downgradeEasyCorrectionSpans(); 884 } 885 886 // No need to create the controller 887 if (mSelectionModifierCursorController != null) { 888 mSelectionModifierCursorController.resetTouchOffsets(); 889 } 890 } 891 } 892 893 /** 894 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 895 * span. 896 */ 897 private void downgradeEasyCorrectionSpans() { 898 CharSequence text = mTextView.getText(); 899 if (text instanceof Spannable) { 900 Spannable spannable = (Spannable) text; 901 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 902 spannable.length(), SuggestionSpan.class); 903 for (int i = 0; i < suggestionSpans.length; i++) { 904 int flags = suggestionSpans[i].getFlags(); 905 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 906 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 907 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 908 suggestionSpans[i].setFlags(flags); 909 } 910 } 911 } 912 } 913 914 void sendOnTextChanged(int start, int after) { 915 updateSpellCheckSpans(start, start + after, false); 916 917 // Hide the controllers as soon as text is modified (typing, procedural...) 918 // We do not hide the span controllers, since they can be added when a new text is 919 // inserted into the text view (voice IME). 920 hideCursorControllers(); 921 } 922 923 private int getLastTapPosition() { 924 // No need to create the controller at that point, no last tap position saved 925 if (mSelectionModifierCursorController != null) { 926 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 927 if (lastTapPosition >= 0) { 928 // Safety check, should not be possible. 929 if (lastTapPosition > mTextView.getText().length()) { 930 lastTapPosition = mTextView.getText().length(); 931 } 932 return lastTapPosition; 933 } 934 } 935 936 return -1; 937 } 938 939 void onWindowFocusChanged(boolean hasWindowFocus) { 940 if (hasWindowFocus) { 941 if (mBlink != null) { 942 mBlink.uncancel(); 943 makeBlink(); 944 } 945 } else { 946 if (mBlink != null) { 947 mBlink.cancel(); 948 } 949 if (mInputContentType != null) { 950 mInputContentType.enterDown = false; 951 } 952 // Order matters! Must be done before onParentLostFocus to rely on isShowingUp 953 hideControllers(); 954 if (mSuggestionsPopupWindow != null) { 955 mSuggestionsPopupWindow.onParentLostFocus(); 956 } 957 958 // Don't leave us in the middle of a batch edit. 959 mTextView.onEndBatchEdit(); 960 } 961 } 962 963 void onTouchEvent(MotionEvent event) { 964 if (hasSelectionController()) { 965 getSelectionController().onTouchEvent(event); 966 } 967 968 if (mShowSuggestionRunnable != null) { 969 mTextView.removeCallbacks(mShowSuggestionRunnable); 970 mShowSuggestionRunnable = null; 971 } 972 973 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 974 mLastDownPositionX = event.getX(); 975 mLastDownPositionY = event.getY(); 976 977 // Reset this state; it will be re-set if super.onTouchEvent 978 // causes focus to move to the view. 979 mTouchFocusSelected = false; 980 mIgnoreActionUpEvent = false; 981 } 982 } 983 984 public void beginBatchEdit() { 985 mInBatchEditControllers = true; 986 final InputMethodState ims = mInputMethodState; 987 if (ims != null) { 988 int nesting = ++ims.mBatchEditNesting; 989 if (nesting == 1) { 990 ims.mCursorChanged = false; 991 ims.mChangedDelta = 0; 992 if (ims.mContentChanged) { 993 // We already have a pending change from somewhere else, 994 // so turn this into a full update. 995 ims.mChangedStart = 0; 996 ims.mChangedEnd = mTextView.getText().length(); 997 } else { 998 ims.mChangedStart = EXTRACT_UNKNOWN; 999 ims.mChangedEnd = EXTRACT_UNKNOWN; 1000 ims.mContentChanged = false; 1001 } 1002 mTextView.onBeginBatchEdit(); 1003 } 1004 } 1005 } 1006 1007 public void endBatchEdit() { 1008 mInBatchEditControllers = false; 1009 final InputMethodState ims = mInputMethodState; 1010 if (ims != null) { 1011 int nesting = --ims.mBatchEditNesting; 1012 if (nesting == 0) { 1013 finishBatchEdit(ims); 1014 } 1015 } 1016 } 1017 1018 void ensureEndedBatchEdit() { 1019 final InputMethodState ims = mInputMethodState; 1020 if (ims != null && ims.mBatchEditNesting != 0) { 1021 ims.mBatchEditNesting = 0; 1022 finishBatchEdit(ims); 1023 } 1024 } 1025 1026 void finishBatchEdit(final InputMethodState ims) { 1027 mTextView.onEndBatchEdit(); 1028 1029 if (ims.mContentChanged || ims.mSelectionModeChanged) { 1030 mTextView.updateAfterEdit(); 1031 reportExtractedText(); 1032 } else if (ims.mCursorChanged) { 1033 // Cheezy way to get us to report the current cursor location. 1034 mTextView.invalidateCursor(); 1035 } 1036 } 1037 1038 static final int EXTRACT_NOTHING = -2; 1039 static final int EXTRACT_UNKNOWN = -1; 1040 1041 boolean extractText(ExtractedTextRequest request, ExtractedText outText) { 1042 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 1043 EXTRACT_UNKNOWN, outText); 1044 } 1045 1046 private boolean extractTextInternal(ExtractedTextRequest request, 1047 int partialStartOffset, int partialEndOffset, int delta, 1048 ExtractedText outText) { 1049 final CharSequence content = mTextView.getText(); 1050 if (content != null) { 1051 if (partialStartOffset != EXTRACT_NOTHING) { 1052 final int N = content.length(); 1053 if (partialStartOffset < 0) { 1054 outText.partialStartOffset = outText.partialEndOffset = -1; 1055 partialStartOffset = 0; 1056 partialEndOffset = N; 1057 } else { 1058 // Now use the delta to determine the actual amount of text 1059 // we need. 1060 partialEndOffset += delta; 1061 // Adjust offsets to ensure we contain full spans. 1062 if (content instanceof Spanned) { 1063 Spanned spanned = (Spanned)content; 1064 Object[] spans = spanned.getSpans(partialStartOffset, 1065 partialEndOffset, ParcelableSpan.class); 1066 int i = spans.length; 1067 while (i > 0) { 1068 i--; 1069 int j = spanned.getSpanStart(spans[i]); 1070 if (j < partialStartOffset) partialStartOffset = j; 1071 j = spanned.getSpanEnd(spans[i]); 1072 if (j > partialEndOffset) partialEndOffset = j; 1073 } 1074 } 1075 outText.partialStartOffset = partialStartOffset; 1076 outText.partialEndOffset = partialEndOffset - delta; 1077 1078 if (partialStartOffset > N) { 1079 partialStartOffset = N; 1080 } else if (partialStartOffset < 0) { 1081 partialStartOffset = 0; 1082 } 1083 if (partialEndOffset > N) { 1084 partialEndOffset = N; 1085 } else if (partialEndOffset < 0) { 1086 partialEndOffset = 0; 1087 } 1088 } 1089 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 1090 outText.text = content.subSequence(partialStartOffset, 1091 partialEndOffset); 1092 } else { 1093 outText.text = TextUtils.substring(content, partialStartOffset, 1094 partialEndOffset); 1095 } 1096 } else { 1097 outText.partialStartOffset = 0; 1098 outText.partialEndOffset = 0; 1099 outText.text = ""; 1100 } 1101 outText.flags = 0; 1102 if (MetaKeyKeyListener.getMetaState(content, MetaKeyKeyListener.META_SELECTING) != 0) { 1103 outText.flags |= ExtractedText.FLAG_SELECTING; 1104 } 1105 if (mTextView.isSingleLine()) { 1106 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 1107 } 1108 outText.startOffset = 0; 1109 outText.selectionStart = mTextView.getSelectionStart(); 1110 outText.selectionEnd = mTextView.getSelectionEnd(); 1111 return true; 1112 } 1113 return false; 1114 } 1115 1116 boolean reportExtractedText() { 1117 final Editor.InputMethodState ims = mInputMethodState; 1118 if (ims != null) { 1119 final boolean contentChanged = ims.mContentChanged; 1120 if (contentChanged || ims.mSelectionModeChanged) { 1121 ims.mContentChanged = false; 1122 ims.mSelectionModeChanged = false; 1123 final ExtractedTextRequest req = ims.mExtracting; 1124 if (req != null) { 1125 InputMethodManager imm = InputMethodManager.peekInstance(); 1126 if (imm != null) { 1127 if (TextView.DEBUG_EXTRACT) Log.v(TextView.LOG_TAG, 1128 "Retrieving extracted start=" + ims.mChangedStart + 1129 " end=" + ims.mChangedEnd + 1130 " delta=" + ims.mChangedDelta); 1131 if (ims.mChangedStart < 0 && !contentChanged) { 1132 ims.mChangedStart = EXTRACT_NOTHING; 1133 } 1134 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 1135 ims.mChangedDelta, ims.mTmpExtracted)) { 1136 if (TextView.DEBUG_EXTRACT) Log.v(TextView.LOG_TAG, 1137 "Reporting extracted start=" + 1138 ims.mTmpExtracted.partialStartOffset + 1139 " end=" + ims.mTmpExtracted.partialEndOffset + 1140 ": " + ims.mTmpExtracted.text); 1141 imm.updateExtractedText(mTextView, req.token, ims.mTmpExtracted); 1142 ims.mChangedStart = EXTRACT_UNKNOWN; 1143 ims.mChangedEnd = EXTRACT_UNKNOWN; 1144 ims.mChangedDelta = 0; 1145 ims.mContentChanged = false; 1146 return true; 1147 } 1148 } 1149 } 1150 } 1151 } 1152 return false; 1153 } 1154 1155 void onDraw(Canvas canvas, Layout layout, Path highlight, Paint highlightPaint, 1156 int cursorOffsetVertical) { 1157 final int selectionStart = mTextView.getSelectionStart(); 1158 final int selectionEnd = mTextView.getSelectionEnd(); 1159 1160 final InputMethodState ims = mInputMethodState; 1161 if (ims != null && ims.mBatchEditNesting == 0) { 1162 InputMethodManager imm = InputMethodManager.peekInstance(); 1163 if (imm != null) { 1164 if (imm.isActive(mTextView)) { 1165 boolean reported = false; 1166 if (ims.mContentChanged || ims.mSelectionModeChanged) { 1167 // We are in extract mode and the content has changed 1168 // in some way... just report complete new text to the 1169 // input method. 1170 reported = reportExtractedText(); 1171 } 1172 if (!reported && highlight != null) { 1173 int candStart = -1; 1174 int candEnd = -1; 1175 if (mTextView.getText() instanceof Spannable) { 1176 Spannable sp = (Spannable) mTextView.getText(); 1177 candStart = EditableInputConnection.getComposingSpanStart(sp); 1178 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 1179 } 1180 imm.updateSelection(mTextView, 1181 selectionStart, selectionEnd, candStart, candEnd); 1182 } 1183 } 1184 1185 if (imm.isWatchingCursor(mTextView) && highlight != null) { 1186 highlight.computeBounds(ims.mTmpRectF, true); 1187 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 1188 1189 canvas.getMatrix().mapPoints(ims.mTmpOffset); 1190 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 1191 1192 ims.mTmpRectF.offset(0, cursorOffsetVertical); 1193 1194 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 1195 (int)(ims.mTmpRectF.top + 0.5), 1196 (int)(ims.mTmpRectF.right + 0.5), 1197 (int)(ims.mTmpRectF.bottom + 0.5)); 1198 1199 imm.updateCursor(mTextView, 1200 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 1201 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 1202 } 1203 } 1204 } 1205 1206 if (mCorrectionHighlighter != null) { 1207 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 1208 } 1209 1210 if (highlight != null && selectionStart == selectionEnd && mCursorCount > 0) { 1211 drawCursor(canvas, cursorOffsetVertical); 1212 // Rely on the drawable entirely, do not draw the cursor line. 1213 // Has to be done after the IMM related code above which relies on the highlight. 1214 highlight = null; 1215 } 1216 1217 if (mTextView.canHaveDisplayList() && canvas.isHardwareAccelerated()) { 1218 drawHardwareAccelerated(canvas, layout, highlight, highlightPaint, 1219 cursorOffsetVertical); 1220 } else { 1221 layout.draw(canvas, highlight, highlightPaint, cursorOffsetVertical); 1222 } 1223 } 1224 1225 private void drawHardwareAccelerated(Canvas canvas, Layout layout, Path highlight, 1226 Paint highlightPaint, int cursorOffsetVertical) { 1227 final int width = mTextView.getWidth(); 1228 final int height = mTextView.getHeight(); 1229 1230 final long lineRange = layout.getLineRangeForDraw(canvas); 1231 int firstLine = TextUtils.unpackRangeStartFromLong(lineRange); 1232 int lastLine = TextUtils.unpackRangeEndFromLong(lineRange); 1233 if (lastLine < 0) return; 1234 1235 layout.drawBackground(canvas, highlight, highlightPaint, cursorOffsetVertical, 1236 firstLine, lastLine); 1237 1238 if (layout instanceof DynamicLayout) { 1239 if (mTextDisplayLists == null) { 1240 mTextDisplayLists = new DisplayList[ArrayUtils.idealObjectArraySize(0)]; 1241 } 1242 1243 DynamicLayout dynamicLayout = (DynamicLayout) layout; 1244 int[] blockEnds = dynamicLayout.getBlockEnds(); 1245 int[] blockIndices = dynamicLayout.getBlockIndices(); 1246 final int numberOfBlocks = dynamicLayout.getNumberOfBlocks(); 1247 1248 final int mScrollX = mTextView.getScrollX(); 1249 final int mScrollY = mTextView.getScrollY(); 1250 canvas.translate(mScrollX, mScrollY); 1251 int endOfPreviousBlock = -1; 1252 int searchStartIndex = 0; 1253 for (int i = 0; i < numberOfBlocks; i++) { 1254 int blockEnd = blockEnds[i]; 1255 int blockIndex = blockIndices[i]; 1256 1257 final boolean blockIsInvalid = blockIndex == DynamicLayout.INVALID_BLOCK_INDEX; 1258 if (blockIsInvalid) { 1259 blockIndex = getAvailableDisplayListIndex(blockIndices, numberOfBlocks, 1260 searchStartIndex); 1261 // Dynamic layout internal block indices structure is updated from Editor 1262 blockIndices[i] = blockIndex; 1263 searchStartIndex = blockIndex + 1; 1264 } 1265 1266 DisplayList blockDisplayList = mTextDisplayLists[blockIndex]; 1267 if (blockDisplayList == null) { 1268 blockDisplayList = mTextDisplayLists[blockIndex] = 1269 mTextView.getHardwareRenderer().createDisplayList("Text " + blockIndex); 1270 } else { 1271 if (blockIsInvalid) blockDisplayList.invalidate(); 1272 } 1273 1274 if (!blockDisplayList.isValid()) { 1275 final HardwareCanvas hardwareCanvas = blockDisplayList.start(); 1276 try { 1277 hardwareCanvas.setViewport(width, height); 1278 // The dirty rect should always be null for a display list 1279 hardwareCanvas.onPreDraw(null); 1280 hardwareCanvas.translate(-mScrollX, -mScrollY); 1281 layout.drawText(hardwareCanvas, endOfPreviousBlock + 1, blockEnd); 1282 hardwareCanvas.translate(mScrollX, mScrollY); 1283 } finally { 1284 hardwareCanvas.onPostDraw(); 1285 blockDisplayList.end(); 1286 if (View.USE_DISPLAY_LIST_PROPERTIES) { 1287 blockDisplayList.setLeftTopRightBottom(0, 0, width, height); 1288 } 1289 } 1290 } 1291 1292 ((HardwareCanvas) canvas).drawDisplayList(blockDisplayList, width, height, null, 1293 DisplayList.FLAG_CLIP_CHILDREN); 1294 endOfPreviousBlock = blockEnd; 1295 } 1296 canvas.translate(-mScrollX, -mScrollY); 1297 } else { 1298 // Boring layout is used for empty and hint text 1299 layout.drawText(canvas, firstLine, lastLine); 1300 } 1301 } 1302 1303 private int getAvailableDisplayListIndex(int[] blockIndices, int numberOfBlocks, 1304 int searchStartIndex) { 1305 int length = mTextDisplayLists.length; 1306 for (int i = searchStartIndex; i < length; i++) { 1307 boolean blockIndexFound = false; 1308 for (int j = 0; j < numberOfBlocks; j++) { 1309 if (blockIndices[j] == i) { 1310 blockIndexFound = true; 1311 break; 1312 } 1313 } 1314 if (blockIndexFound) continue; 1315 return i; 1316 } 1317 1318 // No available index found, the pool has to grow 1319 int newSize = ArrayUtils.idealIntArraySize(length + 1); 1320 DisplayList[] displayLists = new DisplayList[newSize]; 1321 System.arraycopy(mTextDisplayLists, 0, displayLists, 0, length); 1322 mTextDisplayLists = displayLists; 1323 return length; 1324 } 1325 1326 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 1327 final boolean translate = cursorOffsetVertical != 0; 1328 if (translate) canvas.translate(0, cursorOffsetVertical); 1329 for (int i = 0; i < mCursorCount; i++) { 1330 mCursorDrawable[i].draw(canvas); 1331 } 1332 if (translate) canvas.translate(0, -cursorOffsetVertical); 1333 } 1334 1335 void invalidateTextDisplayList() { 1336 if (mTextDisplayLists != null) { 1337 for (int i = 0; i < mTextDisplayLists.length; i++) { 1338 if (mTextDisplayLists[i] != null) mTextDisplayLists[i].invalidate(); 1339 } 1340 } 1341 } 1342 1343 void updateCursorsPositions() { 1344 if (mTextView.mCursorDrawableRes == 0) { 1345 mCursorCount = 0; 1346 return; 1347 } 1348 1349 Layout layout = mTextView.getLayout(); 1350 final int offset = mTextView.getSelectionStart(); 1351 final int line = layout.getLineForOffset(offset); 1352 final int top = layout.getLineTop(line); 1353 final int bottom = layout.getLineTop(line + 1); 1354 1355 mCursorCount = layout.isLevelBoundary(offset) ? 2 : 1; 1356 1357 int middle = bottom; 1358 if (mCursorCount == 2) { 1359 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 1360 middle = (top + bottom) >> 1; 1361 } 1362 1363 updateCursorPosition(0, top, middle, layout.getPrimaryHorizontal(offset)); 1364 1365 if (mCursorCount == 2) { 1366 updateCursorPosition(1, middle, bottom, layout.getSecondaryHorizontal(offset)); 1367 } 1368 } 1369 1370 /** 1371 * @return true if the selection mode was actually started. 1372 */ 1373 boolean startSelectionActionMode() { 1374 if (mSelectionActionMode != null) { 1375 // Selection action mode is already started 1376 return false; 1377 } 1378 1379 if (!canSelectText() || !mTextView.requestFocus()) { 1380 Log.w(TextView.LOG_TAG, 1381 "TextView does not support text selection. Action mode cancelled."); 1382 return false; 1383 } 1384 1385 if (!mTextView.hasSelection()) { 1386 // There may already be a selection on device rotation 1387 if (!selectCurrentWord()) { 1388 // No word found under cursor or text selection not permitted. 1389 return false; 1390 } 1391 } 1392 1393 boolean willExtract = extractedTextModeWillBeStarted(); 1394 1395 // Do not start the action mode when extracted text will show up full screen, which would 1396 // immediately hide the newly created action bar and would be visually distracting. 1397 if (!willExtract) { 1398 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 1399 mSelectionActionMode = mTextView.startActionMode(actionModeCallback); 1400 } 1401 1402 final boolean selectionStarted = mSelectionActionMode != null || willExtract; 1403 if (selectionStarted && !mTextView.isTextSelectable()) { 1404 // Show the IME to be able to replace text, except when selecting non editable text. 1405 final InputMethodManager imm = InputMethodManager.peekInstance(); 1406 if (imm != null) { 1407 imm.showSoftInput(mTextView, 0, null); 1408 } 1409 } 1410 1411 return selectionStarted; 1412 } 1413 1414 private boolean extractedTextModeWillBeStarted() { 1415 if (!(mTextView instanceof ExtractEditText)) { 1416 final InputMethodManager imm = InputMethodManager.peekInstance(); 1417 return imm != null && imm.isFullscreenMode(); 1418 } 1419 return false; 1420 } 1421 1422 /** 1423 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 1424 */ 1425 private boolean isCursorInsideSuggestionSpan() { 1426 CharSequence text = mTextView.getText(); 1427 if (!(text instanceof Spannable)) return false; 1428 1429 SuggestionSpan[] suggestionSpans = ((Spannable) text).getSpans( 1430 mTextView.getSelectionStart(), mTextView.getSelectionEnd(), SuggestionSpan.class); 1431 return (suggestionSpans.length > 0); 1432 } 1433 1434 /** 1435 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 1436 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 1437 */ 1438 private boolean isCursorInsideEasyCorrectionSpan() { 1439 Spannable spannable = (Spannable) mTextView.getText(); 1440 SuggestionSpan[] suggestionSpans = spannable.getSpans(mTextView.getSelectionStart(), 1441 mTextView.getSelectionEnd(), SuggestionSpan.class); 1442 for (int i = 0; i < suggestionSpans.length; i++) { 1443 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 1444 return true; 1445 } 1446 } 1447 return false; 1448 } 1449 1450 void onTouchUpEvent(MotionEvent event) { 1451 boolean selectAllGotFocus = mSelectAllOnFocus && mTextView.didTouchFocusSelect(); 1452 hideControllers(); 1453 CharSequence text = mTextView.getText(); 1454 if (!selectAllGotFocus && text.length() > 0) { 1455 // Move cursor 1456 final int offset = mTextView.getOffsetForPosition(event.getX(), event.getY()); 1457 Selection.setSelection((Spannable) text, offset); 1458 if (mSpellChecker != null) { 1459 // When the cursor moves, the word that was typed may need spell check 1460 mSpellChecker.onSelectionChanged(); 1461 } 1462 if (!extractedTextModeWillBeStarted()) { 1463 if (isCursorInsideEasyCorrectionSpan()) { 1464 mShowSuggestionRunnable = new Runnable() { 1465 public void run() { 1466 showSuggestions(); 1467 } 1468 }; 1469 // removeCallbacks is performed on every touch 1470 mTextView.postDelayed(mShowSuggestionRunnable, 1471 ViewConfiguration.getDoubleTapTimeout()); 1472 } else if (hasInsertionController()) { 1473 getInsertionController().show(); 1474 } 1475 } 1476 } 1477 } 1478 1479 protected void stopSelectionActionMode() { 1480 if (mSelectionActionMode != null) { 1481 // This will hide the mSelectionModifierCursorController 1482 mSelectionActionMode.finish(); 1483 } 1484 } 1485 1486 /** 1487 * @return True if this view supports insertion handles. 1488 */ 1489 boolean hasInsertionController() { 1490 return mInsertionControllerEnabled; 1491 } 1492 1493 /** 1494 * @return True if this view supports selection handles. 1495 */ 1496 boolean hasSelectionController() { 1497 return mSelectionControllerEnabled; 1498 } 1499 1500 InsertionPointCursorController getInsertionController() { 1501 if (!mInsertionControllerEnabled) { 1502 return null; 1503 } 1504 1505 if (mInsertionPointCursorController == null) { 1506 mInsertionPointCursorController = new InsertionPointCursorController(); 1507 1508 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 1509 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 1510 } 1511 1512 return mInsertionPointCursorController; 1513 } 1514 1515 SelectionModifierCursorController getSelectionController() { 1516 if (!mSelectionControllerEnabled) { 1517 return null; 1518 } 1519 1520 if (mSelectionModifierCursorController == null) { 1521 mSelectionModifierCursorController = new SelectionModifierCursorController(); 1522 1523 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 1524 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 1525 } 1526 1527 return mSelectionModifierCursorController; 1528 } 1529 1530 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 1531 if (mCursorDrawable[cursorIndex] == null) 1532 mCursorDrawable[cursorIndex] = mTextView.getResources().getDrawable( 1533 mTextView.mCursorDrawableRes); 1534 1535 if (mTempRect == null) mTempRect = new Rect(); 1536 mCursorDrawable[cursorIndex].getPadding(mTempRect); 1537 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 1538 horizontal = Math.max(0.5f, horizontal - 0.5f); 1539 final int left = (int) (horizontal) - mTempRect.left; 1540 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 1541 bottom + mTempRect.bottom); 1542 } 1543 1544 /** 1545 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 1546 * a dictionnary) from the current input method, provided by it calling 1547 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 1548 * implementation flashes the background of the corrected word to provide feedback to the user. 1549 * 1550 * @param info The auto correct info about the text that was corrected. 1551 */ 1552 public void onCommitCorrection(CorrectionInfo info) { 1553 if (mCorrectionHighlighter == null) { 1554 mCorrectionHighlighter = new CorrectionHighlighter(); 1555 } else { 1556 mCorrectionHighlighter.invalidate(false); 1557 } 1558 1559 mCorrectionHighlighter.highlight(info); 1560 } 1561 1562 void showSuggestions() { 1563 if (mSuggestionsPopupWindow == null) { 1564 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 1565 } 1566 hideControllers(); 1567 mSuggestionsPopupWindow.show(); 1568 } 1569 1570 boolean areSuggestionsShown() { 1571 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 1572 } 1573 1574 void onScrollChanged() { 1575 if (mPositionListener != null) { 1576 mPositionListener.onScrollChanged(); 1577 } 1578 // Internal scroll affects the clip boundaries 1579 invalidateTextDisplayList(); 1580 } 1581 1582 /** 1583 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 1584 */ 1585 private boolean shouldBlink() { 1586 if (!isCursorVisible() || !mTextView.isFocused()) return false; 1587 1588 final int start = mTextView.getSelectionStart(); 1589 if (start < 0) return false; 1590 1591 final int end = mTextView.getSelectionEnd(); 1592 if (end < 0) return false; 1593 1594 return start == end; 1595 } 1596 1597 void makeBlink() { 1598 if (shouldBlink()) { 1599 mShowCursor = SystemClock.uptimeMillis(); 1600 if (mBlink == null) mBlink = new Blink(); 1601 mBlink.removeCallbacks(mBlink); 1602 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 1603 } else { 1604 if (mBlink != null) mBlink.removeCallbacks(mBlink); 1605 } 1606 } 1607 1608 private class Blink extends Handler implements Runnable { 1609 private boolean mCancelled; 1610 1611 public void run() { 1612 if (mCancelled) { 1613 return; 1614 } 1615 1616 removeCallbacks(Blink.this); 1617 1618 if (shouldBlink()) { 1619 if (mTextView.getLayout() != null) { 1620 mTextView.invalidateCursorPath(); 1621 } 1622 1623 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 1624 } 1625 } 1626 1627 void cancel() { 1628 if (!mCancelled) { 1629 removeCallbacks(Blink.this); 1630 mCancelled = true; 1631 } 1632 } 1633 1634 void uncancel() { 1635 mCancelled = false; 1636 } 1637 } 1638 1639 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 1640 TextView shadowView = (TextView) View.inflate(mTextView.getContext(), 1641 com.android.internal.R.layout.text_drag_thumbnail, null); 1642 1643 if (shadowView == null) { 1644 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 1645 } 1646 1647 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 1648 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 1649 } 1650 shadowView.setText(text); 1651 shadowView.setTextColor(mTextView.getTextColors()); 1652 1653 shadowView.setTextAppearance(mTextView.getContext(), R.styleable.Theme_textAppearanceLarge); 1654 shadowView.setGravity(Gravity.CENTER); 1655 1656 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 1657 ViewGroup.LayoutParams.WRAP_CONTENT)); 1658 1659 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 1660 shadowView.measure(size, size); 1661 1662 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 1663 shadowView.invalidate(); 1664 return new DragShadowBuilder(shadowView); 1665 } 1666 1667 private static class DragLocalState { 1668 public TextView sourceTextView; 1669 public int start, end; 1670 1671 public DragLocalState(TextView sourceTextView, int start, int end) { 1672 this.sourceTextView = sourceTextView; 1673 this.start = start; 1674 this.end = end; 1675 } 1676 } 1677 1678 void onDrop(DragEvent event) { 1679 StringBuilder content = new StringBuilder(""); 1680 ClipData clipData = event.getClipData(); 1681 final int itemCount = clipData.getItemCount(); 1682 for (int i=0; i < itemCount; i++) { 1683 Item item = clipData.getItemAt(i); 1684 content.append(item.coerceToStyledText(mTextView.getContext())); 1685 } 1686 1687 final int offset = mTextView.getOffsetForPosition(event.getX(), event.getY()); 1688 1689 Object localState = event.getLocalState(); 1690 DragLocalState dragLocalState = null; 1691 if (localState instanceof DragLocalState) { 1692 dragLocalState = (DragLocalState) localState; 1693 } 1694 boolean dragDropIntoItself = dragLocalState != null && 1695 dragLocalState.sourceTextView == mTextView; 1696 1697 if (dragDropIntoItself) { 1698 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 1699 // A drop inside the original selection discards the drop. 1700 return; 1701 } 1702 } 1703 1704 final int originalLength = mTextView.getText().length(); 1705 long minMax = mTextView.prepareSpacesAroundPaste(offset, offset, content); 1706 int min = TextUtils.unpackRangeStartFromLong(minMax); 1707 int max = TextUtils.unpackRangeEndFromLong(minMax); 1708 1709 Selection.setSelection((Spannable) mTextView.getText(), max); 1710 mTextView.replaceText_internal(min, max, content); 1711 1712 if (dragDropIntoItself) { 1713 int dragSourceStart = dragLocalState.start; 1714 int dragSourceEnd = dragLocalState.end; 1715 if (max <= dragSourceStart) { 1716 // Inserting text before selection has shifted positions 1717 final int shift = mTextView.getText().length() - originalLength; 1718 dragSourceStart += shift; 1719 dragSourceEnd += shift; 1720 } 1721 1722 // Delete original selection 1723 mTextView.deleteText_internal(dragSourceStart, dragSourceEnd); 1724 1725 // Make sure we do not leave two adjacent spaces. 1726 CharSequence t = mTextView.getTransformedText(dragSourceStart - 1, dragSourceStart + 1); 1727 if ( (dragSourceStart == 0 || Character.isSpaceChar(t.charAt(0))) && 1728 (dragSourceStart == mTextView.getText().length() || 1729 Character.isSpaceChar(t.charAt(1))) ) { 1730 final int pos = dragSourceStart == mTextView.getText().length() ? 1731 dragSourceStart - 1 : dragSourceStart; 1732 mTextView.deleteText_internal(pos, pos + 1); 1733 } 1734 } 1735 } 1736 1737 /** 1738 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 1739 * pop-up should be displayed. 1740 */ 1741 class EasyEditSpanController implements TextWatcher { 1742 1743 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 1744 1745 private EasyEditPopupWindow mPopupWindow; 1746 1747 private EasyEditSpan mEasyEditSpan; 1748 1749 private Runnable mHidePopup; 1750 1751 public void hide() { 1752 if (mPopupWindow != null) { 1753 mPopupWindow.hide(); 1754 mTextView.removeCallbacks(mHidePopup); 1755 } 1756 removeSpans(mTextView.getText()); 1757 mEasyEditSpan = null; 1758 } 1759 1760 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1761 // Intentionally empty 1762 } 1763 1764 public void afterTextChanged(Editable s) { 1765 // Intentionally empty 1766 } 1767 1768 /** 1769 * Monitors the changes in the text. 1770 * 1771 * <p>{@link SpanWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 1772 * as the notifications are not sent when a spannable (with spans) is inserted. 1773 */ 1774 public void onTextChanged(CharSequence buffer, int start, int before, int after) { 1775 adjustSpans(buffer, start, after); 1776 1777 if (mTextView.getWindowVisibility() != View.VISIBLE) { 1778 // The window is not visible yet, ignore the text change. 1779 return; 1780 } 1781 1782 if (mTextView.getLayout() == null) { 1783 // The view has not been layout yet, ignore the text change 1784 return; 1785 } 1786 1787 InputMethodManager imm = InputMethodManager.peekInstance(); 1788 if (!(mTextView instanceof ExtractEditText) && imm != null && imm.isFullscreenMode()) { 1789 // The input is in extract mode. We do not have to handle the easy edit in the 1790 // original TextView, as the ExtractEditText will do 1791 return; 1792 } 1793 1794 // Remove the current easy edit span, as the text changed, and remove the pop-up 1795 // (if any) 1796 if (mEasyEditSpan != null) { 1797 if (buffer instanceof Spannable) { 1798 ((Spannable) buffer).removeSpan(mEasyEditSpan); 1799 } 1800 mEasyEditSpan = null; 1801 } 1802 if (mPopupWindow != null && mPopupWindow.isShowing()) { 1803 mPopupWindow.hide(); 1804 } 1805 1806 // Display the new easy edit span (if any). 1807 if (buffer instanceof Spanned) { 1808 mEasyEditSpan = getSpan((Spanned) buffer); 1809 if (mEasyEditSpan != null) { 1810 if (mPopupWindow == null) { 1811 mPopupWindow = new EasyEditPopupWindow(); 1812 mHidePopup = new Runnable() { 1813 @Override 1814 public void run() { 1815 hide(); 1816 } 1817 }; 1818 } 1819 mPopupWindow.show(mEasyEditSpan); 1820 mTextView.removeCallbacks(mHidePopup); 1821 mTextView.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 1822 } 1823 } 1824 } 1825 1826 /** 1827 * Adjusts the spans by removing all of them except the last one. 1828 */ 1829 private void adjustSpans(CharSequence buffer, int start, int after) { 1830 // This method enforces that only one easy edit span is attached to the text. 1831 // A better way to enforce this would be to listen for onSpanAdded, but this method 1832 // cannot be used in this scenario as no notification is triggered when a text with 1833 // spans is inserted into a text. 1834 if (buffer instanceof Spannable) { 1835 Spannable spannable = (Spannable) buffer; 1836 EasyEditSpan[] spans = spannable.getSpans(start, start + after, EasyEditSpan.class); 1837 if (spans.length > 0) { 1838 // Assuming there was only one EasyEditSpan before, we only need check to 1839 // check for a duplicate if a new one is found in the modified interval 1840 spans = spannable.getSpans(0, spannable.length(), EasyEditSpan.class); 1841 for (int i = 1; i < spans.length; i++) { 1842 spannable.removeSpan(spans[i]); 1843 } 1844 } 1845 } 1846 } 1847 1848 /** 1849 * Removes all the {@link EasyEditSpan} currently attached. 1850 */ 1851 private void removeSpans(CharSequence buffer) { 1852 if (buffer instanceof Spannable) { 1853 Spannable spannable = (Spannable) buffer; 1854 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 1855 EasyEditSpan.class); 1856 for (int i = 0; i < spans.length; i++) { 1857 spannable.removeSpan(spans[i]); 1858 } 1859 } 1860 } 1861 1862 private EasyEditSpan getSpan(Spanned spanned) { 1863 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 1864 EasyEditSpan.class); 1865 if (easyEditSpans.length == 0) { 1866 return null; 1867 } else { 1868 return easyEditSpans[0]; 1869 } 1870 } 1871 } 1872 1873 /** 1874 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 1875 * by {@link EasyEditSpanController}. 1876 */ 1877 private class EasyEditPopupWindow extends PinnedPopupWindow 1878 implements OnClickListener { 1879 private static final int POPUP_TEXT_LAYOUT = 1880 com.android.internal.R.layout.text_edit_action_popup_text; 1881 private TextView mDeleteTextView; 1882 private EasyEditSpan mEasyEditSpan; 1883 1884 @Override 1885 protected void createPopupWindow() { 1886 mPopupWindow = new PopupWindow(mTextView.getContext(), null, 1887 com.android.internal.R.attr.textSelectHandleWindowStyle); 1888 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 1889 mPopupWindow.setClippingEnabled(true); 1890 } 1891 1892 @Override 1893 protected void initContentView() { 1894 LinearLayout linearLayout = new LinearLayout(mTextView.getContext()); 1895 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 1896 mContentView = linearLayout; 1897 mContentView.setBackgroundResource( 1898 com.android.internal.R.drawable.text_edit_side_paste_window); 1899 1900 LayoutInflater inflater = (LayoutInflater)mTextView.getContext(). 1901 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 1902 1903 LayoutParams wrapContent = new LayoutParams( 1904 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 1905 1906 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 1907 mDeleteTextView.setLayoutParams(wrapContent); 1908 mDeleteTextView.setText(com.android.internal.R.string.delete); 1909 mDeleteTextView.setOnClickListener(this); 1910 mContentView.addView(mDeleteTextView); 1911 } 1912 1913 public void show(EasyEditSpan easyEditSpan) { 1914 mEasyEditSpan = easyEditSpan; 1915 super.show(); 1916 } 1917 1918 @Override 1919 public void onClick(View view) { 1920 if (view == mDeleteTextView) { 1921 Editable editable = (Editable) mTextView.getText(); 1922 int start = editable.getSpanStart(mEasyEditSpan); 1923 int end = editable.getSpanEnd(mEasyEditSpan); 1924 if (start >= 0 && end >= 0) { 1925 mTextView.deleteText_internal(start, end); 1926 } 1927 } 1928 } 1929 1930 @Override 1931 protected int getTextOffset() { 1932 // Place the pop-up at the end of the span 1933 Editable editable = (Editable) mTextView.getText(); 1934 return editable.getSpanEnd(mEasyEditSpan); 1935 } 1936 1937 @Override 1938 protected int getVerticalLocalPosition(int line) { 1939 return mTextView.getLayout().getLineBottom(line); 1940 } 1941 1942 @Override 1943 protected int clipVertically(int positionY) { 1944 // As we display the pop-up below the span, no vertical clipping is required. 1945 return positionY; 1946 } 1947 } 1948 1949 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 1950 // 3 handles 1951 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 1952 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 1953 private TextViewPositionListener[] mPositionListeners = 1954 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 1955 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 1956 private boolean mPositionHasChanged = true; 1957 // Absolute position of the TextView with respect to its parent window 1958 private int mPositionX, mPositionY; 1959 private int mNumberOfListeners; 1960 private boolean mScrollHasChanged; 1961 final int[] mTempCoords = new int[2]; 1962 1963 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 1964 if (mNumberOfListeners == 0) { 1965 updatePosition(); 1966 ViewTreeObserver vto = mTextView.getViewTreeObserver(); 1967 vto.addOnPreDrawListener(this); 1968 } 1969 1970 int emptySlotIndex = -1; 1971 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 1972 TextViewPositionListener listener = mPositionListeners[i]; 1973 if (listener == positionListener) { 1974 return; 1975 } else if (emptySlotIndex < 0 && listener == null) { 1976 emptySlotIndex = i; 1977 } 1978 } 1979 1980 mPositionListeners[emptySlotIndex] = positionListener; 1981 mCanMove[emptySlotIndex] = canMove; 1982 mNumberOfListeners++; 1983 } 1984 1985 public void removeSubscriber(TextViewPositionListener positionListener) { 1986 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 1987 if (mPositionListeners[i] == positionListener) { 1988 mPositionListeners[i] = null; 1989 mNumberOfListeners--; 1990 break; 1991 } 1992 } 1993 1994 if (mNumberOfListeners == 0) { 1995 ViewTreeObserver vto = mTextView.getViewTreeObserver(); 1996 vto.removeOnPreDrawListener(this); 1997 } 1998 } 1999 2000 public int getPositionX() { 2001 return mPositionX; 2002 } 2003 2004 public int getPositionY() { 2005 return mPositionY; 2006 } 2007 2008 @Override 2009 public boolean onPreDraw() { 2010 updatePosition(); 2011 2012 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 2013 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 2014 TextViewPositionListener positionListener = mPositionListeners[i]; 2015 if (positionListener != null) { 2016 positionListener.updatePosition(mPositionX, mPositionY, 2017 mPositionHasChanged, mScrollHasChanged); 2018 } 2019 } 2020 } 2021 2022 mScrollHasChanged = false; 2023 return true; 2024 } 2025 2026 private void updatePosition() { 2027 mTextView.getLocationInWindow(mTempCoords); 2028 2029 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 2030 2031 mPositionX = mTempCoords[0]; 2032 mPositionY = mTempCoords[1]; 2033 } 2034 2035 public void onScrollChanged() { 2036 mScrollHasChanged = true; 2037 } 2038 } 2039 2040 private abstract class PinnedPopupWindow implements TextViewPositionListener { 2041 protected PopupWindow mPopupWindow; 2042 protected ViewGroup mContentView; 2043 int mPositionX, mPositionY; 2044 2045 protected abstract void createPopupWindow(); 2046 protected abstract void initContentView(); 2047 protected abstract int getTextOffset(); 2048 protected abstract int getVerticalLocalPosition(int line); 2049 protected abstract int clipVertically(int positionY); 2050 2051 public PinnedPopupWindow() { 2052 createPopupWindow(); 2053 2054 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 2055 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 2056 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 2057 2058 initContentView(); 2059 2060 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 2061 ViewGroup.LayoutParams.WRAP_CONTENT); 2062 mContentView.setLayoutParams(wrapContent); 2063 2064 mPopupWindow.setContentView(mContentView); 2065 } 2066 2067 public void show() { 2068 getPositionListener().addSubscriber(this, false /* offset is fixed */); 2069 2070 computeLocalPosition(); 2071 2072 final PositionListener positionListener = getPositionListener(); 2073 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 2074 } 2075 2076 protected void measureContent() { 2077 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2078 mContentView.measure( 2079 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 2080 View.MeasureSpec.AT_MOST), 2081 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 2082 View.MeasureSpec.AT_MOST)); 2083 } 2084 2085 /* The popup window will be horizontally centered on the getTextOffset() and vertically 2086 * positioned according to viewportToContentHorizontalOffset. 2087 * 2088 * This method assumes that mContentView has properly been measured from its content. */ 2089 private void computeLocalPosition() { 2090 measureContent(); 2091 final int width = mContentView.getMeasuredWidth(); 2092 final int offset = getTextOffset(); 2093 mPositionX = (int) (mTextView.getLayout().getPrimaryHorizontal(offset) - width / 2.0f); 2094 mPositionX += mTextView.viewportToContentHorizontalOffset(); 2095 2096 final int line = mTextView.getLayout().getLineForOffset(offset); 2097 mPositionY = getVerticalLocalPosition(line); 2098 mPositionY += mTextView.viewportToContentVerticalOffset(); 2099 } 2100 2101 private void updatePosition(int parentPositionX, int parentPositionY) { 2102 int positionX = parentPositionX + mPositionX; 2103 int positionY = parentPositionY + mPositionY; 2104 2105 positionY = clipVertically(positionY); 2106 2107 // Horizontal clipping 2108 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2109 final int width = mContentView.getMeasuredWidth(); 2110 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 2111 positionX = Math.max(0, positionX); 2112 2113 if (isShowing()) { 2114 mPopupWindow.update(positionX, positionY, -1, -1); 2115 } else { 2116 mPopupWindow.showAtLocation(mTextView, Gravity.NO_GRAVITY, 2117 positionX, positionY); 2118 } 2119 } 2120 2121 public void hide() { 2122 mPopupWindow.dismiss(); 2123 getPositionListener().removeSubscriber(this); 2124 } 2125 2126 @Override 2127 public void updatePosition(int parentPositionX, int parentPositionY, 2128 boolean parentPositionChanged, boolean parentScrolled) { 2129 // Either parentPositionChanged or parentScrolled is true, check if still visible 2130 if (isShowing() && isOffsetVisible(getTextOffset())) { 2131 if (parentScrolled) computeLocalPosition(); 2132 updatePosition(parentPositionX, parentPositionY); 2133 } else { 2134 hide(); 2135 } 2136 } 2137 2138 public boolean isShowing() { 2139 return mPopupWindow.isShowing(); 2140 } 2141 } 2142 2143 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 2144 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 2145 private static final int ADD_TO_DICTIONARY = -1; 2146 private static final int DELETE_TEXT = -2; 2147 private SuggestionInfo[] mSuggestionInfos; 2148 private int mNumberOfSuggestions; 2149 private boolean mCursorWasVisibleBeforeSuggestions; 2150 private boolean mIsShowingUp = false; 2151 private SuggestionAdapter mSuggestionsAdapter; 2152 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 2153 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 2154 2155 private class CustomPopupWindow extends PopupWindow { 2156 public CustomPopupWindow(Context context, int defStyle) { 2157 super(context, null, defStyle); 2158 } 2159 2160 @Override 2161 public void dismiss() { 2162 super.dismiss(); 2163 2164 getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 2165 2166 // Safe cast since show() checks that mTextView.getText() is an Editable 2167 ((Spannable) mTextView.getText()).removeSpan(mSuggestionRangeSpan); 2168 2169 mTextView.setCursorVisible(mCursorWasVisibleBeforeSuggestions); 2170 if (hasInsertionController()) { 2171 getInsertionController().show(); 2172 } 2173 } 2174 } 2175 2176 public SuggestionsPopupWindow() { 2177 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 2178 mSuggestionSpanComparator = new SuggestionSpanComparator(); 2179 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 2180 } 2181 2182 @Override 2183 protected void createPopupWindow() { 2184 mPopupWindow = new CustomPopupWindow(mTextView.getContext(), 2185 com.android.internal.R.attr.textSuggestionsWindowStyle); 2186 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 2187 mPopupWindow.setFocusable(true); 2188 mPopupWindow.setClippingEnabled(false); 2189 } 2190 2191 @Override 2192 protected void initContentView() { 2193 ListView listView = new ListView(mTextView.getContext()); 2194 mSuggestionsAdapter = new SuggestionAdapter(); 2195 listView.setAdapter(mSuggestionsAdapter); 2196 listView.setOnItemClickListener(this); 2197 mContentView = listView; 2198 2199 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 2200 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 2201 for (int i = 0; i < mSuggestionInfos.length; i++) { 2202 mSuggestionInfos[i] = new SuggestionInfo(); 2203 } 2204 } 2205 2206 public boolean isShowingUp() { 2207 return mIsShowingUp; 2208 } 2209 2210 public void onParentLostFocus() { 2211 mIsShowingUp = false; 2212 } 2213 2214 private class SuggestionInfo { 2215 int suggestionStart, suggestionEnd; // range of actual suggestion within text 2216 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 2217 int suggestionIndex; // the index of this suggestion inside suggestionSpan 2218 SpannableStringBuilder text = new SpannableStringBuilder(); 2219 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mTextView.getContext(), 2220 android.R.style.TextAppearance_SuggestionHighlight); 2221 } 2222 2223 private class SuggestionAdapter extends BaseAdapter { 2224 private LayoutInflater mInflater = (LayoutInflater) mTextView.getContext(). 2225 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 2226 2227 @Override 2228 public int getCount() { 2229 return mNumberOfSuggestions; 2230 } 2231 2232 @Override 2233 public Object getItem(int position) { 2234 return mSuggestionInfos[position]; 2235 } 2236 2237 @Override 2238 public long getItemId(int position) { 2239 return position; 2240 } 2241 2242 @Override 2243 public View getView(int position, View convertView, ViewGroup parent) { 2244 TextView textView = (TextView) convertView; 2245 2246 if (textView == null) { 2247 textView = (TextView) mInflater.inflate(mTextView.mTextEditSuggestionItemLayout, 2248 parent, false); 2249 } 2250 2251 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 2252 textView.setText(suggestionInfo.text); 2253 2254 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 2255 textView.setCompoundDrawablesWithIntrinsicBounds( 2256 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 2257 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 2258 textView.setCompoundDrawablesWithIntrinsicBounds( 2259 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 2260 } else { 2261 textView.setCompoundDrawables(null, null, null, null); 2262 } 2263 2264 return textView; 2265 } 2266 } 2267 2268 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 2269 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 2270 final int flag1 = span1.getFlags(); 2271 final int flag2 = span2.getFlags(); 2272 if (flag1 != flag2) { 2273 // The order here should match what is used in updateDrawState 2274 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 2275 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 2276 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 2277 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 2278 if (easy1 && !misspelled1) return -1; 2279 if (easy2 && !misspelled2) return 1; 2280 if (misspelled1) return -1; 2281 if (misspelled2) return 1; 2282 } 2283 2284 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 2285 } 2286 } 2287 2288 /** 2289 * Returns the suggestion spans that cover the current cursor position. The suggestion 2290 * spans are sorted according to the length of text that they are attached to. 2291 */ 2292 private SuggestionSpan[] getSuggestionSpans() { 2293 int pos = mTextView.getSelectionStart(); 2294 Spannable spannable = (Spannable) mTextView.getText(); 2295 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 2296 2297 mSpansLengths.clear(); 2298 for (SuggestionSpan suggestionSpan : suggestionSpans) { 2299 int start = spannable.getSpanStart(suggestionSpan); 2300 int end = spannable.getSpanEnd(suggestionSpan); 2301 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 2302 } 2303 2304 // The suggestions are sorted according to their types (easy correction first, then 2305 // misspelled) and to the length of the text that they cover (shorter first). 2306 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 2307 return suggestionSpans; 2308 } 2309 2310 @Override 2311 public void show() { 2312 if (!(mTextView.getText() instanceof Editable)) return; 2313 2314 if (updateSuggestions()) { 2315 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 2316 mTextView.setCursorVisible(false); 2317 mIsShowingUp = true; 2318 super.show(); 2319 } 2320 } 2321 2322 @Override 2323 protected void measureContent() { 2324 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2325 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 2326 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 2327 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 2328 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 2329 2330 int width = 0; 2331 View view = null; 2332 for (int i = 0; i < mNumberOfSuggestions; i++) { 2333 view = mSuggestionsAdapter.getView(i, view, mContentView); 2334 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 2335 view.measure(horizontalMeasure, verticalMeasure); 2336 width = Math.max(width, view.getMeasuredWidth()); 2337 } 2338 2339 // Enforce the width based on actual text widths 2340 mContentView.measure( 2341 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 2342 verticalMeasure); 2343 2344 Drawable popupBackground = mPopupWindow.getBackground(); 2345 if (popupBackground != null) { 2346 if (mTempRect == null) mTempRect = new Rect(); 2347 popupBackground.getPadding(mTempRect); 2348 width += mTempRect.left + mTempRect.right; 2349 } 2350 mPopupWindow.setWidth(width); 2351 } 2352 2353 @Override 2354 protected int getTextOffset() { 2355 return mTextView.getSelectionStart(); 2356 } 2357 2358 @Override 2359 protected int getVerticalLocalPosition(int line) { 2360 return mTextView.getLayout().getLineBottom(line); 2361 } 2362 2363 @Override 2364 protected int clipVertically(int positionY) { 2365 final int height = mContentView.getMeasuredHeight(); 2366 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2367 return Math.min(positionY, displayMetrics.heightPixels - height); 2368 } 2369 2370 @Override 2371 public void hide() { 2372 super.hide(); 2373 } 2374 2375 private boolean updateSuggestions() { 2376 Spannable spannable = (Spannable) mTextView.getText(); 2377 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 2378 2379 final int nbSpans = suggestionSpans.length; 2380 // Suggestions are shown after a delay: the underlying spans may have been removed 2381 if (nbSpans == 0) return false; 2382 2383 mNumberOfSuggestions = 0; 2384 int spanUnionStart = mTextView.getText().length(); 2385 int spanUnionEnd = 0; 2386 2387 SuggestionSpan misspelledSpan = null; 2388 int underlineColor = 0; 2389 2390 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 2391 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 2392 final int spanStart = spannable.getSpanStart(suggestionSpan); 2393 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 2394 spanUnionStart = Math.min(spanStart, spanUnionStart); 2395 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 2396 2397 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 2398 misspelledSpan = suggestionSpan; 2399 } 2400 2401 // The first span dictates the background color of the highlighted text 2402 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 2403 2404 String[] suggestions = suggestionSpan.getSuggestions(); 2405 int nbSuggestions = suggestions.length; 2406 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 2407 String suggestion = suggestions[suggestionIndex]; 2408 2409 boolean suggestionIsDuplicate = false; 2410 for (int i = 0; i < mNumberOfSuggestions; i++) { 2411 if (mSuggestionInfos[i].text.toString().equals(suggestion)) { 2412 SuggestionSpan otherSuggestionSpan = mSuggestionInfos[i].suggestionSpan; 2413 final int otherSpanStart = spannable.getSpanStart(otherSuggestionSpan); 2414 final int otherSpanEnd = spannable.getSpanEnd(otherSuggestionSpan); 2415 if (spanStart == otherSpanStart && spanEnd == otherSpanEnd) { 2416 suggestionIsDuplicate = true; 2417 break; 2418 } 2419 } 2420 } 2421 2422 if (!suggestionIsDuplicate) { 2423 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 2424 suggestionInfo.suggestionSpan = suggestionSpan; 2425 suggestionInfo.suggestionIndex = suggestionIndex; 2426 suggestionInfo.text.replace(0, suggestionInfo.text.length(), suggestion); 2427 2428 mNumberOfSuggestions++; 2429 2430 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 2431 // Also end outer for loop 2432 spanIndex = nbSpans; 2433 break; 2434 } 2435 } 2436 } 2437 } 2438 2439 for (int i = 0; i < mNumberOfSuggestions; i++) { 2440 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 2441 } 2442 2443 // Add "Add to dictionary" item if there is a span with the misspelled flag 2444 if (misspelledSpan != null) { 2445 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 2446 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 2447 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 2448 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 2449 suggestionInfo.suggestionSpan = misspelledSpan; 2450 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 2451 suggestionInfo.text.replace(0, suggestionInfo.text.length(), mTextView. 2452 getContext().getString(com.android.internal.R.string.addToDictionary)); 2453 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 2454 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2455 2456 mNumberOfSuggestions++; 2457 } 2458 } 2459 2460 // Delete item 2461 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 2462 suggestionInfo.suggestionSpan = null; 2463 suggestionInfo.suggestionIndex = DELETE_TEXT; 2464 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 2465 mTextView.getContext().getString(com.android.internal.R.string.deleteText)); 2466 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 2467 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2468 mNumberOfSuggestions++; 2469 2470 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 2471 if (underlineColor == 0) { 2472 // Fallback on the default highlight color when the first span does not provide one 2473 mSuggestionRangeSpan.setBackgroundColor(mTextView.mHighlightColor); 2474 } else { 2475 final float BACKGROUND_TRANSPARENCY = 0.4f; 2476 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 2477 mSuggestionRangeSpan.setBackgroundColor( 2478 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 2479 } 2480 spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 2481 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2482 2483 mSuggestionsAdapter.notifyDataSetChanged(); 2484 return true; 2485 } 2486 2487 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 2488 int unionEnd) { 2489 final Spannable text = (Spannable) mTextView.getText(); 2490 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 2491 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 2492 2493 // Adjust the start/end of the suggestion span 2494 suggestionInfo.suggestionStart = spanStart - unionStart; 2495 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 2496 + suggestionInfo.text.length(); 2497 2498 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 2499 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2500 2501 // Add the text before and after the span. 2502 final String textAsString = text.toString(); 2503 suggestionInfo.text.insert(0, textAsString.substring(unionStart, spanStart)); 2504 suggestionInfo.text.append(textAsString.substring(spanEnd, unionEnd)); 2505 } 2506 2507 @Override 2508 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 2509 Editable editable = (Editable) mTextView.getText(); 2510 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 2511 2512 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 2513 final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); 2514 int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); 2515 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 2516 // Do not leave two adjacent spaces after deletion, or one at beginning of text 2517 if (spanUnionEnd < editable.length() && 2518 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 2519 (spanUnionStart == 0 || 2520 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 2521 spanUnionEnd = spanUnionEnd + 1; 2522 } 2523 mTextView.deleteText_internal(spanUnionStart, spanUnionEnd); 2524 } 2525 hide(); 2526 return; 2527 } 2528 2529 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 2530 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 2531 if (spanStart < 0 || spanEnd <= spanStart) { 2532 // Span has been removed 2533 hide(); 2534 return; 2535 } 2536 2537 final String originalText = editable.toString().substring(spanStart, spanEnd); 2538 2539 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 2540 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 2541 intent.putExtra("word", originalText); 2542 intent.putExtra("locale", mTextView.getTextServicesLocale().toString()); 2543 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 2544 mTextView.getContext().startActivity(intent); 2545 // There is no way to know if the word was indeed added. Re-check. 2546 // TODO The ExtractEditText should remove the span in the original text instead 2547 editable.removeSpan(suggestionInfo.suggestionSpan); 2548 updateSpellCheckSpans(spanStart, spanEnd, false); 2549 } else { 2550 // SuggestionSpans are removed by replace: save them before 2551 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 2552 SuggestionSpan.class); 2553 final int length = suggestionSpans.length; 2554 int[] suggestionSpansStarts = new int[length]; 2555 int[] suggestionSpansEnds = new int[length]; 2556 int[] suggestionSpansFlags = new int[length]; 2557 for (int i = 0; i < length; i++) { 2558 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 2559 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 2560 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 2561 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 2562 2563 // Remove potential misspelled flags 2564 int suggestionSpanFlags = suggestionSpan.getFlags(); 2565 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 2566 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 2567 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 2568 suggestionSpan.setFlags(suggestionSpanFlags); 2569 } 2570 } 2571 2572 final int suggestionStart = suggestionInfo.suggestionStart; 2573 final int suggestionEnd = suggestionInfo.suggestionEnd; 2574 final String suggestion = suggestionInfo.text.subSequence( 2575 suggestionStart, suggestionEnd).toString(); 2576 mTextView.replaceText_internal(spanStart, spanEnd, suggestion); 2577 2578 // Notify source IME of the suggestion pick. Do this before swaping texts. 2579 if (!TextUtils.isEmpty( 2580 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 2581 InputMethodManager imm = InputMethodManager.peekInstance(); 2582 if (imm != null) { 2583 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 2584 suggestionInfo.suggestionIndex); 2585 } 2586 } 2587 2588 // Swap text content between actual text and Suggestion span 2589 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 2590 suggestions[suggestionInfo.suggestionIndex] = originalText; 2591 2592 // Restore previous SuggestionSpans 2593 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 2594 for (int i = 0; i < length; i++) { 2595 // Only spans that include the modified region make sense after replacement 2596 // Spans partially included in the replaced region are removed, there is no 2597 // way to assign them a valid range after replacement 2598 if (suggestionSpansStarts[i] <= spanStart && 2599 suggestionSpansEnds[i] >= spanEnd) { 2600 mTextView.setSpan_internal(suggestionSpans[i], suggestionSpansStarts[i], 2601 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 2602 } 2603 } 2604 2605 // Move cursor at the end of the replaced word 2606 final int newCursorPosition = spanEnd + lengthDifference; 2607 mTextView.setCursorPosition_internal(newCursorPosition, newCursorPosition); 2608 } 2609 2610 hide(); 2611 } 2612 } 2613 2614 /** 2615 * An ActionMode Callback class that is used to provide actions while in text selection mode. 2616 * 2617 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 2618 * on which of these this TextView supports. 2619 */ 2620 private class SelectionActionModeCallback implements ActionMode.Callback { 2621 2622 @Override 2623 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 2624 TypedArray styledAttributes = mTextView.getContext().obtainStyledAttributes( 2625 com.android.internal.R.styleable.SelectionModeDrawables); 2626 2627 boolean allowText = mTextView.getContext().getResources().getBoolean( 2628 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 2629 2630 mode.setTitle(mTextView.getContext().getString( 2631 com.android.internal.R.string.textSelectionCABTitle)); 2632 mode.setSubtitle(null); 2633 mode.setTitleOptionalHint(true); 2634 2635 int selectAllIconId = 0; // No icon by default 2636 if (!allowText) { 2637 // Provide an icon, text will not be displayed on smaller screens. 2638 selectAllIconId = styledAttributes.getResourceId( 2639 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 2640 } 2641 2642 menu.add(0, TextView.ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 2643 setIcon(selectAllIconId). 2644 setAlphabeticShortcut('a'). 2645 setShowAsAction( 2646 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2647 2648 if (mTextView.canCut()) { 2649 menu.add(0, TextView.ID_CUT, 0, com.android.internal.R.string.cut). 2650 setIcon(styledAttributes.getResourceId( 2651 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 2652 setAlphabeticShortcut('x'). 2653 setShowAsAction( 2654 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2655 } 2656 2657 if (mTextView.canCopy()) { 2658 menu.add(0, TextView.ID_COPY, 0, com.android.internal.R.string.copy). 2659 setIcon(styledAttributes.getResourceId( 2660 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 2661 setAlphabeticShortcut('c'). 2662 setShowAsAction( 2663 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2664 } 2665 2666 if (mTextView.canPaste()) { 2667 menu.add(0, TextView.ID_PASTE, 0, com.android.internal.R.string.paste). 2668 setIcon(styledAttributes.getResourceId( 2669 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 2670 setAlphabeticShortcut('v'). 2671 setShowAsAction( 2672 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2673 } 2674 2675 styledAttributes.recycle(); 2676 2677 if (mCustomSelectionActionModeCallback != null) { 2678 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 2679 // The custom mode can choose to cancel the action mode 2680 return false; 2681 } 2682 } 2683 2684 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 2685 getSelectionController().show(); 2686 return true; 2687 } else { 2688 return false; 2689 } 2690 } 2691 2692 @Override 2693 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 2694 if (mCustomSelectionActionModeCallback != null) { 2695 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 2696 } 2697 return true; 2698 } 2699 2700 @Override 2701 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 2702 if (mCustomSelectionActionModeCallback != null && 2703 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 2704 return true; 2705 } 2706 return mTextView.onTextContextMenuItem(item.getItemId()); 2707 } 2708 2709 @Override 2710 public void onDestroyActionMode(ActionMode mode) { 2711 if (mCustomSelectionActionModeCallback != null) { 2712 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 2713 } 2714 Selection.setSelection((Spannable) mTextView.getText(), mTextView.getSelectionEnd()); 2715 2716 if (mSelectionModifierCursorController != null) { 2717 mSelectionModifierCursorController.hide(); 2718 } 2719 2720 mSelectionActionMode = null; 2721 } 2722 } 2723 2724 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 2725 private static final int POPUP_TEXT_LAYOUT = 2726 com.android.internal.R.layout.text_edit_action_popup_text; 2727 private TextView mPasteTextView; 2728 private TextView mReplaceTextView; 2729 2730 @Override 2731 protected void createPopupWindow() { 2732 mPopupWindow = new PopupWindow(mTextView.getContext(), null, 2733 com.android.internal.R.attr.textSelectHandleWindowStyle); 2734 mPopupWindow.setClippingEnabled(true); 2735 } 2736 2737 @Override 2738 protected void initContentView() { 2739 LinearLayout linearLayout = new LinearLayout(mTextView.getContext()); 2740 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 2741 mContentView = linearLayout; 2742 mContentView.setBackgroundResource( 2743 com.android.internal.R.drawable.text_edit_paste_window); 2744 2745 LayoutInflater inflater = (LayoutInflater) mTextView.getContext(). 2746 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 2747 2748 LayoutParams wrapContent = new LayoutParams( 2749 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 2750 2751 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 2752 mPasteTextView.setLayoutParams(wrapContent); 2753 mContentView.addView(mPasteTextView); 2754 mPasteTextView.setText(com.android.internal.R.string.paste); 2755 mPasteTextView.setOnClickListener(this); 2756 2757 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 2758 mReplaceTextView.setLayoutParams(wrapContent); 2759 mContentView.addView(mReplaceTextView); 2760 mReplaceTextView.setText(com.android.internal.R.string.replace); 2761 mReplaceTextView.setOnClickListener(this); 2762 } 2763 2764 @Override 2765 public void show() { 2766 boolean canPaste = mTextView.canPaste(); 2767 boolean canSuggest = mTextView.isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 2768 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 2769 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 2770 2771 if (!canPaste && !canSuggest) return; 2772 2773 super.show(); 2774 } 2775 2776 @Override 2777 public void onClick(View view) { 2778 if (view == mPasteTextView && mTextView.canPaste()) { 2779 mTextView.onTextContextMenuItem(TextView.ID_PASTE); 2780 hide(); 2781 } else if (view == mReplaceTextView) { 2782 int middle = (mTextView.getSelectionStart() + mTextView.getSelectionEnd()) / 2; 2783 stopSelectionActionMode(); 2784 Selection.setSelection((Spannable) mTextView.getText(), middle); 2785 showSuggestions(); 2786 } 2787 } 2788 2789 @Override 2790 protected int getTextOffset() { 2791 return (mTextView.getSelectionStart() + mTextView.getSelectionEnd()) / 2; 2792 } 2793 2794 @Override 2795 protected int getVerticalLocalPosition(int line) { 2796 return mTextView.getLayout().getLineTop(line) - mContentView.getMeasuredHeight(); 2797 } 2798 2799 @Override 2800 protected int clipVertically(int positionY) { 2801 if (positionY < 0) { 2802 final int offset = getTextOffset(); 2803 final Layout layout = mTextView.getLayout(); 2804 final int line = layout.getLineForOffset(offset); 2805 positionY += layout.getLineBottom(line) - layout.getLineTop(line); 2806 positionY += mContentView.getMeasuredHeight(); 2807 2808 // Assumes insertion and selection handles share the same height 2809 final Drawable handle = mTextView.getResources().getDrawable( 2810 mTextView.mTextSelectHandleRes); 2811 positionY += handle.getIntrinsicHeight(); 2812 } 2813 2814 return positionY; 2815 } 2816 } 2817 2818 private abstract class HandleView extends View implements TextViewPositionListener { 2819 protected Drawable mDrawable; 2820 protected Drawable mDrawableLtr; 2821 protected Drawable mDrawableRtl; 2822 private final PopupWindow mContainer; 2823 // Position with respect to the parent TextView 2824 private int mPositionX, mPositionY; 2825 private boolean mIsDragging; 2826 // Offset from touch position to mPosition 2827 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 2828 protected int mHotspotX; 2829 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 2830 private float mTouchOffsetY; 2831 // Where the touch position should be on the handle to ensure a maximum cursor visibility 2832 private float mIdealVerticalOffset; 2833 // Parent's (TextView) previous position in window 2834 private int mLastParentX, mLastParentY; 2835 // Transient action popup window for Paste and Replace actions 2836 protected ActionPopupWindow mActionPopupWindow; 2837 // Previous text character offset 2838 private int mPreviousOffset = -1; 2839 // Previous text character offset 2840 private boolean mPositionHasChanged = true; 2841 // Used to delay the appearance of the action popup window 2842 private Runnable mActionPopupShower; 2843 2844 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 2845 super(mTextView.getContext()); 2846 mContainer = new PopupWindow(mTextView.getContext(), null, 2847 com.android.internal.R.attr.textSelectHandleWindowStyle); 2848 mContainer.setSplitTouchEnabled(true); 2849 mContainer.setClippingEnabled(false); 2850 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 2851 mContainer.setContentView(this); 2852 2853 mDrawableLtr = drawableLtr; 2854 mDrawableRtl = drawableRtl; 2855 2856 updateDrawable(); 2857 2858 final int handleHeight = mDrawable.getIntrinsicHeight(); 2859 mTouchOffsetY = -0.3f * handleHeight; 2860 mIdealVerticalOffset = 0.7f * handleHeight; 2861 } 2862 2863 protected void updateDrawable() { 2864 final int offset = getCurrentCursorOffset(); 2865 final boolean isRtlCharAtOffset = mTextView.getLayout().isRtlCharAt(offset); 2866 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 2867 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 2868 } 2869 2870 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 2871 2872 // Touch-up filter: number of previous positions remembered 2873 private static final int HISTORY_SIZE = 5; 2874 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 2875 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 2876 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 2877 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 2878 private int mPreviousOffsetIndex = 0; 2879 private int mNumberPreviousOffsets = 0; 2880 2881 private void startTouchUpFilter(int offset) { 2882 mNumberPreviousOffsets = 0; 2883 addPositionToTouchUpFilter(offset); 2884 } 2885 2886 private void addPositionToTouchUpFilter(int offset) { 2887 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 2888 mPreviousOffsets[mPreviousOffsetIndex] = offset; 2889 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 2890 mNumberPreviousOffsets++; 2891 } 2892 2893 private void filterOnTouchUp() { 2894 final long now = SystemClock.uptimeMillis(); 2895 int i = 0; 2896 int index = mPreviousOffsetIndex; 2897 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 2898 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 2899 i++; 2900 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 2901 } 2902 2903 if (i > 0 && i < iMax && 2904 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 2905 positionAtCursorOffset(mPreviousOffsets[index], false); 2906 } 2907 } 2908 2909 public boolean offsetHasBeenChanged() { 2910 return mNumberPreviousOffsets > 1; 2911 } 2912 2913 @Override 2914 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 2915 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 2916 } 2917 2918 public void show() { 2919 if (isShowing()) return; 2920 2921 getPositionListener().addSubscriber(this, true /* local position may change */); 2922 2923 // Make sure the offset is always considered new, even when focusing at same position 2924 mPreviousOffset = -1; 2925 positionAtCursorOffset(getCurrentCursorOffset(), false); 2926 2927 hideActionPopupWindow(); 2928 } 2929 2930 protected void dismiss() { 2931 mIsDragging = false; 2932 mContainer.dismiss(); 2933 onDetached(); 2934 } 2935 2936 public void hide() { 2937 dismiss(); 2938 2939 getPositionListener().removeSubscriber(this); 2940 } 2941 2942 void showActionPopupWindow(int delay) { 2943 if (mActionPopupWindow == null) { 2944 mActionPopupWindow = new ActionPopupWindow(); 2945 } 2946 if (mActionPopupShower == null) { 2947 mActionPopupShower = new Runnable() { 2948 public void run() { 2949 mActionPopupWindow.show(); 2950 } 2951 }; 2952 } else { 2953 mTextView.removeCallbacks(mActionPopupShower); 2954 } 2955 mTextView.postDelayed(mActionPopupShower, delay); 2956 } 2957 2958 protected void hideActionPopupWindow() { 2959 if (mActionPopupShower != null) { 2960 mTextView.removeCallbacks(mActionPopupShower); 2961 } 2962 if (mActionPopupWindow != null) { 2963 mActionPopupWindow.hide(); 2964 } 2965 } 2966 2967 public boolean isShowing() { 2968 return mContainer.isShowing(); 2969 } 2970 2971 private boolean isVisible() { 2972 // Always show a dragging handle. 2973 if (mIsDragging) { 2974 return true; 2975 } 2976 2977 if (mTextView.isInBatchEditMode()) { 2978 return false; 2979 } 2980 2981 return isPositionVisible(mPositionX + mHotspotX, mPositionY); 2982 } 2983 2984 public abstract int getCurrentCursorOffset(); 2985 2986 protected abstract void updateSelection(int offset); 2987 2988 public abstract void updatePosition(float x, float y); 2989 2990 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 2991 // A HandleView relies on the layout, which may be nulled by external methods 2992 Layout layout = mTextView.getLayout(); 2993 if (layout == null) { 2994 // Will update controllers' state, hiding them and stopping selection mode if needed 2995 prepareCursorControllers(); 2996 return; 2997 } 2998 2999 boolean offsetChanged = offset != mPreviousOffset; 3000 if (offsetChanged || parentScrolled) { 3001 if (offsetChanged) { 3002 updateSelection(offset); 3003 addPositionToTouchUpFilter(offset); 3004 } 3005 final int line = layout.getLineForOffset(offset); 3006 3007 mPositionX = (int) (layout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 3008 mPositionY = layout.getLineBottom(line); 3009 3010 // Take TextView's padding and scroll into account. 3011 mPositionX += mTextView.viewportToContentHorizontalOffset(); 3012 mPositionY += mTextView.viewportToContentVerticalOffset(); 3013 3014 mPreviousOffset = offset; 3015 mPositionHasChanged = true; 3016 } 3017 } 3018 3019 public void updatePosition(int parentPositionX, int parentPositionY, 3020 boolean parentPositionChanged, boolean parentScrolled) { 3021 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 3022 if (parentPositionChanged || mPositionHasChanged) { 3023 if (mIsDragging) { 3024 // Update touchToWindow offset in case of parent scrolling while dragging 3025 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 3026 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 3027 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 3028 mLastParentX = parentPositionX; 3029 mLastParentY = parentPositionY; 3030 } 3031 3032 onHandleMoved(); 3033 } 3034 3035 if (isVisible()) { 3036 final int positionX = parentPositionX + mPositionX; 3037 final int positionY = parentPositionY + mPositionY; 3038 if (isShowing()) { 3039 mContainer.update(positionX, positionY, -1, -1); 3040 } else { 3041 mContainer.showAtLocation(mTextView, Gravity.NO_GRAVITY, 3042 positionX, positionY); 3043 } 3044 } else { 3045 if (isShowing()) { 3046 dismiss(); 3047 } 3048 } 3049 3050 mPositionHasChanged = false; 3051 } 3052 } 3053 3054 @Override 3055 protected void onDraw(Canvas c) { 3056 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 3057 mDrawable.draw(c); 3058 } 3059 3060 @Override 3061 public boolean onTouchEvent(MotionEvent ev) { 3062 switch (ev.getActionMasked()) { 3063 case MotionEvent.ACTION_DOWN: { 3064 startTouchUpFilter(getCurrentCursorOffset()); 3065 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 3066 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 3067 3068 final PositionListener positionListener = getPositionListener(); 3069 mLastParentX = positionListener.getPositionX(); 3070 mLastParentY = positionListener.getPositionY(); 3071 mIsDragging = true; 3072 break; 3073 } 3074 3075 case MotionEvent.ACTION_MOVE: { 3076 final float rawX = ev.getRawX(); 3077 final float rawY = ev.getRawY(); 3078 3079 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 3080 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 3081 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 3082 float newVerticalOffset; 3083 if (previousVerticalOffset < mIdealVerticalOffset) { 3084 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 3085 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 3086 } else { 3087 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 3088 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 3089 } 3090 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 3091 3092 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 3093 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 3094 3095 updatePosition(newPosX, newPosY); 3096 break; 3097 } 3098 3099 case MotionEvent.ACTION_UP: 3100 filterOnTouchUp(); 3101 mIsDragging = false; 3102 break; 3103 3104 case MotionEvent.ACTION_CANCEL: 3105 mIsDragging = false; 3106 break; 3107 } 3108 return true; 3109 } 3110 3111 public boolean isDragging() { 3112 return mIsDragging; 3113 } 3114 3115 void onHandleMoved() { 3116 hideActionPopupWindow(); 3117 } 3118 3119 public void onDetached() { 3120 hideActionPopupWindow(); 3121 } 3122 } 3123 3124 private class InsertionHandleView extends HandleView { 3125 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 3126 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 3127 3128 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 3129 private float mDownPositionX, mDownPositionY; 3130 private Runnable mHider; 3131 3132 public InsertionHandleView(Drawable drawable) { 3133 super(drawable, drawable); 3134 } 3135 3136 @Override 3137 public void show() { 3138 super.show(); 3139 3140 final long durationSinceCutOrCopy = 3141 SystemClock.uptimeMillis() - TextView.LAST_CUT_OR_COPY_TIME; 3142 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 3143 showActionPopupWindow(0); 3144 } 3145 3146 hideAfterDelay(); 3147 } 3148 3149 public void showWithActionPopup() { 3150 show(); 3151 showActionPopupWindow(0); 3152 } 3153 3154 private void hideAfterDelay() { 3155 if (mHider == null) { 3156 mHider = new Runnable() { 3157 public void run() { 3158 hide(); 3159 } 3160 }; 3161 } else { 3162 removeHiderCallback(); 3163 } 3164 mTextView.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 3165 } 3166 3167 private void removeHiderCallback() { 3168 if (mHider != null) { 3169 mTextView.removeCallbacks(mHider); 3170 } 3171 } 3172 3173 @Override 3174 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 3175 return drawable.getIntrinsicWidth() / 2; 3176 } 3177 3178 @Override 3179 public boolean onTouchEvent(MotionEvent ev) { 3180 final boolean result = super.onTouchEvent(ev); 3181 3182 switch (ev.getActionMasked()) { 3183 case MotionEvent.ACTION_DOWN: 3184 mDownPositionX = ev.getRawX(); 3185 mDownPositionY = ev.getRawY(); 3186 break; 3187 3188 case MotionEvent.ACTION_UP: 3189 if (!offsetHasBeenChanged()) { 3190 final float deltaX = mDownPositionX - ev.getRawX(); 3191 final float deltaY = mDownPositionY - ev.getRawY(); 3192 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 3193 3194 final ViewConfiguration viewConfiguration = ViewConfiguration.get( 3195 mTextView.getContext()); 3196 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 3197 3198 if (distanceSquared < touchSlop * touchSlop) { 3199 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 3200 // Tapping on the handle dismisses the displayed action popup 3201 mActionPopupWindow.hide(); 3202 } else { 3203 showWithActionPopup(); 3204 } 3205 } 3206 } 3207 hideAfterDelay(); 3208 break; 3209 3210 case MotionEvent.ACTION_CANCEL: 3211 hideAfterDelay(); 3212 break; 3213 3214 default: 3215 break; 3216 } 3217 3218 return result; 3219 } 3220 3221 @Override 3222 public int getCurrentCursorOffset() { 3223 return mTextView.getSelectionStart(); 3224 } 3225 3226 @Override 3227 public void updateSelection(int offset) { 3228 Selection.setSelection((Spannable) mTextView.getText(), offset); 3229 } 3230 3231 @Override 3232 public void updatePosition(float x, float y) { 3233 positionAtCursorOffset(mTextView.getOffsetForPosition(x, y), false); 3234 } 3235 3236 @Override 3237 void onHandleMoved() { 3238 super.onHandleMoved(); 3239 removeHiderCallback(); 3240 } 3241 3242 @Override 3243 public void onDetached() { 3244 super.onDetached(); 3245 removeHiderCallback(); 3246 } 3247 } 3248 3249 private class SelectionStartHandleView extends HandleView { 3250 3251 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 3252 super(drawableLtr, drawableRtl); 3253 } 3254 3255 @Override 3256 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 3257 if (isRtlRun) { 3258 return drawable.getIntrinsicWidth() / 4; 3259 } else { 3260 return (drawable.getIntrinsicWidth() * 3) / 4; 3261 } 3262 } 3263 3264 @Override 3265 public int getCurrentCursorOffset() { 3266 return mTextView.getSelectionStart(); 3267 } 3268 3269 @Override 3270 public void updateSelection(int offset) { 3271 Selection.setSelection((Spannable) mTextView.getText(), offset, 3272 mTextView.getSelectionEnd()); 3273 updateDrawable(); 3274 } 3275 3276 @Override 3277 public void updatePosition(float x, float y) { 3278 int offset = mTextView.getOffsetForPosition(x, y); 3279 3280 // Handles can not cross and selection is at least one character 3281 final int selectionEnd = mTextView.getSelectionEnd(); 3282 if (offset >= selectionEnd) offset = Math.max(0, selectionEnd - 1); 3283 3284 positionAtCursorOffset(offset, false); 3285 } 3286 3287 public ActionPopupWindow getActionPopupWindow() { 3288 return mActionPopupWindow; 3289 } 3290 } 3291 3292 private class SelectionEndHandleView extends HandleView { 3293 3294 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 3295 super(drawableLtr, drawableRtl); 3296 } 3297 3298 @Override 3299 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 3300 if (isRtlRun) { 3301 return (drawable.getIntrinsicWidth() * 3) / 4; 3302 } else { 3303 return drawable.getIntrinsicWidth() / 4; 3304 } 3305 } 3306 3307 @Override 3308 public int getCurrentCursorOffset() { 3309 return mTextView.getSelectionEnd(); 3310 } 3311 3312 @Override 3313 public void updateSelection(int offset) { 3314 Selection.setSelection((Spannable) mTextView.getText(), 3315 mTextView.getSelectionStart(), offset); 3316 updateDrawable(); 3317 } 3318 3319 @Override 3320 public void updatePosition(float x, float y) { 3321 int offset = mTextView.getOffsetForPosition(x, y); 3322 3323 // Handles can not cross and selection is at least one character 3324 final int selectionStart = mTextView.getSelectionStart(); 3325 if (offset <= selectionStart) { 3326 offset = Math.min(selectionStart + 1, mTextView.getText().length()); 3327 } 3328 3329 positionAtCursorOffset(offset, false); 3330 } 3331 3332 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 3333 mActionPopupWindow = actionPopupWindow; 3334 } 3335 } 3336 3337 /** 3338 * A CursorController instance can be used to control a cursor in the text. 3339 */ 3340 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 3341 /** 3342 * Makes the cursor controller visible on screen. 3343 * See also {@link #hide()}. 3344 */ 3345 public void show(); 3346 3347 /** 3348 * Hide the cursor controller from screen. 3349 * See also {@link #show()}. 3350 */ 3351 public void hide(); 3352 3353 /** 3354 * Called when the view is detached from window. Perform house keeping task, such as 3355 * stopping Runnable thread that would otherwise keep a reference on the context, thus 3356 * preventing the activity from being recycled. 3357 */ 3358 public void onDetached(); 3359 } 3360 3361 private class InsertionPointCursorController implements CursorController { 3362 private InsertionHandleView mHandle; 3363 3364 public void show() { 3365 getHandle().show(); 3366 } 3367 3368 public void showWithActionPopup() { 3369 getHandle().showWithActionPopup(); 3370 } 3371 3372 public void hide() { 3373 if (mHandle != null) { 3374 mHandle.hide(); 3375 } 3376 } 3377 3378 public void onTouchModeChanged(boolean isInTouchMode) { 3379 if (!isInTouchMode) { 3380 hide(); 3381 } 3382 } 3383 3384 private InsertionHandleView getHandle() { 3385 if (mSelectHandleCenter == null) { 3386 mSelectHandleCenter = mTextView.getResources().getDrawable( 3387 mTextView.mTextSelectHandleRes); 3388 } 3389 if (mHandle == null) { 3390 mHandle = new InsertionHandleView(mSelectHandleCenter); 3391 } 3392 return mHandle; 3393 } 3394 3395 @Override 3396 public void onDetached() { 3397 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 3398 observer.removeOnTouchModeChangeListener(this); 3399 3400 if (mHandle != null) mHandle.onDetached(); 3401 } 3402 } 3403 3404 class SelectionModifierCursorController implements CursorController { 3405 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 3406 // The cursor controller handles, lazily created when shown. 3407 private SelectionStartHandleView mStartHandle; 3408 private SelectionEndHandleView mEndHandle; 3409 // The offsets of that last touch down event. Remembered to start selection there. 3410 private int mMinTouchOffset, mMaxTouchOffset; 3411 3412 // Double tap detection 3413 private long mPreviousTapUpTime = 0; 3414 private float mDownPositionX, mDownPositionY; 3415 private boolean mGestureStayedInTapRegion; 3416 3417 SelectionModifierCursorController() { 3418 resetTouchOffsets(); 3419 } 3420 3421 public void show() { 3422 if (mTextView.isInBatchEditMode()) { 3423 return; 3424 } 3425 initDrawables(); 3426 initHandles(); 3427 hideInsertionPointCursorController(); 3428 } 3429 3430 private void initDrawables() { 3431 if (mSelectHandleLeft == null) { 3432 mSelectHandleLeft = mTextView.getContext().getResources().getDrawable( 3433 mTextView.mTextSelectHandleLeftRes); 3434 } 3435 if (mSelectHandleRight == null) { 3436 mSelectHandleRight = mTextView.getContext().getResources().getDrawable( 3437 mTextView.mTextSelectHandleRightRes); 3438 } 3439 } 3440 3441 private void initHandles() { 3442 // Lazy object creation has to be done before updatePosition() is called. 3443 if (mStartHandle == null) { 3444 mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); 3445 } 3446 if (mEndHandle == null) { 3447 mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); 3448 } 3449 3450 mStartHandle.show(); 3451 mEndHandle.show(); 3452 3453 // Make sure both left and right handles share the same ActionPopupWindow (so that 3454 // moving any of the handles hides the action popup). 3455 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 3456 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 3457 3458 hideInsertionPointCursorController(); 3459 } 3460 3461 public void hide() { 3462 if (mStartHandle != null) mStartHandle.hide(); 3463 if (mEndHandle != null) mEndHandle.hide(); 3464 } 3465 3466 public void onTouchEvent(MotionEvent event) { 3467 // This is done even when the View does not have focus, so that long presses can start 3468 // selection and tap can move cursor from this tap position. 3469 switch (event.getActionMasked()) { 3470 case MotionEvent.ACTION_DOWN: 3471 final float x = event.getX(); 3472 final float y = event.getY(); 3473 3474 // Remember finger down position, to be able to start selection from there 3475 mMinTouchOffset = mMaxTouchOffset = mTextView.getOffsetForPosition(x, y); 3476 3477 // Double tap detection 3478 if (mGestureStayedInTapRegion) { 3479 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 3480 if (duration <= ViewConfiguration.getDoubleTapTimeout()) { 3481 final float deltaX = x - mDownPositionX; 3482 final float deltaY = y - mDownPositionY; 3483 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 3484 3485 ViewConfiguration viewConfiguration = ViewConfiguration.get( 3486 mTextView.getContext()); 3487 int doubleTapSlop = viewConfiguration.getScaledDoubleTapSlop(); 3488 boolean stayedInArea = distanceSquared < doubleTapSlop * doubleTapSlop; 3489 3490 if (stayedInArea && isPositionOnText(x, y)) { 3491 startSelectionActionMode(); 3492 mDiscardNextActionUp = true; 3493 } 3494 } 3495 } 3496 3497 mDownPositionX = x; 3498 mDownPositionY = y; 3499 mGestureStayedInTapRegion = true; 3500 break; 3501 3502 case MotionEvent.ACTION_POINTER_DOWN: 3503 case MotionEvent.ACTION_POINTER_UP: 3504 // Handle multi-point gestures. Keep min and max offset positions. 3505 // Only activated for devices that correctly handle multi-touch. 3506 if (mTextView.getContext().getPackageManager().hasSystemFeature( 3507 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 3508 updateMinAndMaxOffsets(event); 3509 } 3510 break; 3511 3512 case MotionEvent.ACTION_MOVE: 3513 if (mGestureStayedInTapRegion) { 3514 final float deltaX = event.getX() - mDownPositionX; 3515 final float deltaY = event.getY() - mDownPositionY; 3516 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 3517 3518 final ViewConfiguration viewConfiguration = ViewConfiguration.get( 3519 mTextView.getContext()); 3520 int doubleTapTouchSlop = viewConfiguration.getScaledDoubleTapTouchSlop(); 3521 3522 if (distanceSquared > doubleTapTouchSlop * doubleTapTouchSlop) { 3523 mGestureStayedInTapRegion = false; 3524 } 3525 } 3526 break; 3527 3528 case MotionEvent.ACTION_UP: 3529 mPreviousTapUpTime = SystemClock.uptimeMillis(); 3530 break; 3531 } 3532 } 3533 3534 /** 3535 * @param event 3536 */ 3537 private void updateMinAndMaxOffsets(MotionEvent event) { 3538 int pointerCount = event.getPointerCount(); 3539 for (int index = 0; index < pointerCount; index++) { 3540 int offset = mTextView.getOffsetForPosition(event.getX(index), event.getY(index)); 3541 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 3542 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 3543 } 3544 } 3545 3546 public int getMinTouchOffset() { 3547 return mMinTouchOffset; 3548 } 3549 3550 public int getMaxTouchOffset() { 3551 return mMaxTouchOffset; 3552 } 3553 3554 public void resetTouchOffsets() { 3555 mMinTouchOffset = mMaxTouchOffset = -1; 3556 } 3557 3558 /** 3559 * @return true iff this controller is currently used to move the selection start. 3560 */ 3561 public boolean isSelectionStartDragged() { 3562 return mStartHandle != null && mStartHandle.isDragging(); 3563 } 3564 3565 public void onTouchModeChanged(boolean isInTouchMode) { 3566 if (!isInTouchMode) { 3567 hide(); 3568 } 3569 } 3570 3571 @Override 3572 public void onDetached() { 3573 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 3574 observer.removeOnTouchModeChangeListener(this); 3575 3576 if (mStartHandle != null) mStartHandle.onDetached(); 3577 if (mEndHandle != null) mEndHandle.onDetached(); 3578 } 3579 } 3580 3581 private class CorrectionHighlighter { 3582 private final Path mPath = new Path(); 3583 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 3584 private int mStart, mEnd; 3585 private long mFadingStartTime; 3586 private RectF mTempRectF; 3587 private final static int FADE_OUT_DURATION = 400; 3588 3589 public CorrectionHighlighter() { 3590 mPaint.setCompatibilityScaling(mTextView.getResources().getCompatibilityInfo(). 3591 applicationScale); 3592 mPaint.setStyle(Paint.Style.FILL); 3593 } 3594 3595 public void highlight(CorrectionInfo info) { 3596 mStart = info.getOffset(); 3597 mEnd = mStart + info.getNewText().length(); 3598 mFadingStartTime = SystemClock.uptimeMillis(); 3599 3600 if (mStart < 0 || mEnd < 0) { 3601 stopAnimation(); 3602 } 3603 } 3604 3605 public void draw(Canvas canvas, int cursorOffsetVertical) { 3606 if (updatePath() && updatePaint()) { 3607 if (cursorOffsetVertical != 0) { 3608 canvas.translate(0, cursorOffsetVertical); 3609 } 3610 3611 canvas.drawPath(mPath, mPaint); 3612 3613 if (cursorOffsetVertical != 0) { 3614 canvas.translate(0, -cursorOffsetVertical); 3615 } 3616 invalidate(true); // TODO invalidate cursor region only 3617 } else { 3618 stopAnimation(); 3619 invalidate(false); // TODO invalidate cursor region only 3620 } 3621 } 3622 3623 private boolean updatePaint() { 3624 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 3625 if (duration > FADE_OUT_DURATION) return false; 3626 3627 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 3628 final int highlightColorAlpha = Color.alpha(mTextView.mHighlightColor); 3629 final int color = (mTextView.mHighlightColor & 0x00FFFFFF) + 3630 ((int) (highlightColorAlpha * coef) << 24); 3631 mPaint.setColor(color); 3632 return true; 3633 } 3634 3635 private boolean updatePath() { 3636 final Layout layout = mTextView.getLayout(); 3637 if (layout == null) return false; 3638 3639 // Update in case text is edited while the animation is run 3640 final int length = mTextView.getText().length(); 3641 int start = Math.min(length, mStart); 3642 int end = Math.min(length, mEnd); 3643 3644 mPath.reset(); 3645 layout.getSelectionPath(start, end, mPath); 3646 return true; 3647 } 3648 3649 private void invalidate(boolean delayed) { 3650 if (mTextView.getLayout() == null) return; 3651 3652 if (mTempRectF == null) mTempRectF = new RectF(); 3653 mPath.computeBounds(mTempRectF, false); 3654 3655 int left = mTextView.getCompoundPaddingLeft(); 3656 int top = mTextView.getExtendedPaddingTop() + mTextView.getVerticalOffset(true); 3657 3658 if (delayed) { 3659 mTextView.postInvalidateOnAnimation( 3660 left + (int) mTempRectF.left, top + (int) mTempRectF.top, 3661 left + (int) mTempRectF.right, top + (int) mTempRectF.bottom); 3662 } else { 3663 mTextView.postInvalidate((int) mTempRectF.left, (int) mTempRectF.top, 3664 (int) mTempRectF.right, (int) mTempRectF.bottom); 3665 } 3666 } 3667 3668 private void stopAnimation() { 3669 Editor.this.mCorrectionHighlighter = null; 3670 } 3671 } 3672 3673 private static class ErrorPopup extends PopupWindow { 3674 private boolean mAbove = false; 3675 private final TextView mView; 3676 private int mPopupInlineErrorBackgroundId = 0; 3677 private int mPopupInlineErrorAboveBackgroundId = 0; 3678 3679 ErrorPopup(TextView v, int width, int height) { 3680 super(v, width, height); 3681 mView = v; 3682 // Make sure the TextView has a background set as it will be used the first time it is 3683 // shown and positionned. Initialized with below background, which should have 3684 // dimensions identical to the above version for this to work (and is more likely). 3685 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3686 com.android.internal.R.styleable.Theme_errorMessageBackground); 3687 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3688 } 3689 3690 void fixDirection(boolean above) { 3691 mAbove = above; 3692 3693 if (above) { 3694 mPopupInlineErrorAboveBackgroundId = 3695 getResourceId(mPopupInlineErrorAboveBackgroundId, 3696 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3697 } else { 3698 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3699 com.android.internal.R.styleable.Theme_errorMessageBackground); 3700 } 3701 3702 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3703 mPopupInlineErrorBackgroundId); 3704 } 3705 3706 private int getResourceId(int currentId, int index) { 3707 if (currentId == 0) { 3708 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3709 R.styleable.Theme); 3710 currentId = styledAttributes.getResourceId(index, 0); 3711 styledAttributes.recycle(); 3712 } 3713 return currentId; 3714 } 3715 3716 @Override 3717 public void update(int x, int y, int w, int h, boolean force) { 3718 super.update(x, y, w, h, force); 3719 3720 boolean above = isAboveAnchor(); 3721 if (above != mAbove) { 3722 fixDirection(above); 3723 } 3724 } 3725 } 3726 3727 static class InputContentType { 3728 int imeOptions = EditorInfo.IME_NULL; 3729 String privateImeOptions; 3730 CharSequence imeActionLabel; 3731 int imeActionId; 3732 Bundle extras; 3733 OnEditorActionListener onEditorActionListener; 3734 boolean enterDown; 3735 } 3736 3737 static class InputMethodState { 3738 Rect mCursorRectInWindow = new Rect(); 3739 RectF mTmpRectF = new RectF(); 3740 float[] mTmpOffset = new float[2]; 3741 ExtractedTextRequest mExtracting; 3742 final ExtractedText mTmpExtracted = new ExtractedText(); 3743 int mBatchEditNesting; 3744 boolean mCursorChanged; 3745 boolean mSelectionModeChanged; 3746 boolean mContentChanged; 3747 int mChangedStart, mChangedEnd, mChangedDelta; 3748 } 3749} 3750