diff options
Diffstat (limited to 'java/src/com/android/inputmethod/latin/inputlogic')
| -rw-r--r-- | java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java | 135 |
1 files changed, 40 insertions, 95 deletions
diff --git a/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java b/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java index 92b6a8544..55e92cc09 100644 --- a/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java +++ b/java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java @@ -86,10 +86,6 @@ public final class InputLogic { public final RichInputConnection mConnection; public final RecapitalizeStatus mRecapitalizeStatus = new RecapitalizeStatus(); - // Keep track of the last selection range to decide if we need to show word alternatives - public int mLastSelectionStart = Constants.NOT_A_CURSOR_POSITION; - public int mLastSelectionEnd = Constants.NOT_A_CURSOR_POSITION; - private int mDeleteCount; private long mLastKeyTime; public final TreeSet<Long> mCurrentlyPressedHardwareKeys = CollectionUtils.newTreeSet(); @@ -129,11 +125,9 @@ public final class InputLogic { mRecapitalizeStatus.deactivate(); mCurrentlyPressedHardwareKeys.clear(); mSuggestedWords = SuggestedWords.EMPTY; - mLastSelectionStart = editorInfo.initialSelStart; - mLastSelectionEnd = editorInfo.initialSelEnd; // In some cases (namely, after rotation of the device) editorInfo.initialSelStart is lying // so we try using some heuristics to find out about these and fix them. - tryFixLyingCursorPosition(); + mConnection.tryFixLyingCursorPosition(); mInputLogicHandler = new InputLogicHandler(mLatinIME, this); } @@ -337,7 +331,8 @@ public final class InputLogic { if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) { // If we are in the middle of a recorrection, we need to commit the recorrection // first so that we can insert the batch input at the current cursor position. - resetEntireInputState(settingsValues, mLastSelectionStart, mLastSelectionEnd); + resetEntireInputState(settingsValues, mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd()); } else if (wordComposerSize <= 1) { // We auto-correct the previous (typed, not gestured) string iff it's one character // long. The reason for this is, even in the middle of gesture typing, you'll still @@ -466,7 +461,8 @@ public final class InputLogic { if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) { // If we are in the middle of a recorrection, we need to commit the recorrection // first so that we can insert the character at the current cursor position. - resetEntireInputState(settingsValues, mLastSelectionStart, mLastSelectionEnd); + resetEntireInputState(settingsValues, mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd()); } else { commitTyped(settingsValues, LastComposedWord.NOT_A_SEPARATOR); } @@ -516,7 +512,8 @@ public final class InputLogic { if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) { // If we are in the middle of a recorrection, we need to commit the recorrection // first so that we can insert the character at the current cursor position. - resetEntireInputState(settingsValues, mLastSelectionStart, mLastSelectionEnd); + resetEntireInputState(settingsValues, mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd()); isComposingWord = false; } // We want to find out whether to start composing a new word with this character. If so, @@ -603,7 +600,8 @@ public final class InputLogic { if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) { // If we are in the middle of a recorrection, we need to commit the recorrection // first so that we can insert the separator at the current cursor position. - resetEntireInputState(settingsValues, mLastSelectionStart, mLastSelectionEnd); + resetEntireInputState(settingsValues, mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd()); } // isComposingWord() may have changed since we stored wasComposing if (mWordComposer.isComposingWord()) { @@ -695,7 +693,8 @@ public final class InputLogic { if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) { // If we are in the middle of a recorrection, we need to commit the recorrection // first so that we can remove the character at the current cursor position. - resetEntireInputState(settingsValues, mLastSelectionStart, mLastSelectionEnd); + resetEntireInputState(settingsValues, mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd()); // When we exit this if-clause, mWordComposer.isComposingWord() will return false. } if (mWordComposer.isComposingWord()) { @@ -755,15 +754,12 @@ public final class InputLogic { // No cancelling of commit/double space/swap: we have a regular backspace. // We should backspace one char and restart suggestion if at the end of a word. - if (mLastSelectionStart != mLastSelectionEnd) { + if (mConnection.hasSelection()) { // If there is a selection, remove it. - final int numCharsDeleted = mLastSelectionEnd - mLastSelectionStart; - mConnection.setSelection(mLastSelectionEnd, mLastSelectionEnd); - // Reset mLastSelectionEnd to mLastSelectionStart. This is what is supposed to - // happen, and if it's wrong, the next call to onUpdateSelection will correct it, - // but we want to set it right away to avoid it being used with the wrong values - // later (typically, in a subsequent press on backspace). - mLastSelectionEnd = mLastSelectionStart; + final int numCharsDeleted = mConnection.getExpectedSelectionEnd() + - mConnection.getExpectedSelectionStart(); + mConnection.setSelection(mConnection.getExpectedSelectionEnd(), + mConnection.getExpectedSelectionEnd()); mConnection.deleteSurroundingText(numCharsDeleted, 0); if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) { ResearchLogger.latinIME_handleBackspace(numCharsDeleted, @@ -771,7 +767,7 @@ public final class InputLogic { } } else { // There is no selection, just delete one character. - if (Constants.NOT_A_CURSOR_POSITION == mLastSelectionEnd) { + if (Constants.NOT_A_CURSOR_POSITION == mConnection.getExpectedSelectionEnd()) { // This should never happen. Log.e(TAG, "Backspace when we don't know the selection position"); } @@ -820,7 +816,6 @@ public final class InputLogic { && settingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces && !mConnection.isCursorFollowedByWordCharacter(settingsValues)) { restartSuggestionsOnWordTouchedByCursor(settingsValues, - deleteCountAtStart - mDeleteCount /* offset */, true /* includeResumedWordInSuggestions */, keyboardSwitcher); } // We just removed at least one character. We need to update the auto-caps state. @@ -960,38 +955,32 @@ public final class InputLogic { * @param settingsValues The current settings values. */ private void performRecapitalization(final SettingsValues settingsValues) { - if (mLastSelectionStart == mLastSelectionEnd) { + if (!mConnection.hasSelection()) { return; // No selection } // If we have a recapitalize in progress, use it; otherwise, create a new one. if (!mRecapitalizeStatus.isActive() - || !mRecapitalizeStatus.isSetAt(mLastSelectionStart, mLastSelectionEnd)) { + || !mRecapitalizeStatus.isSetAt(mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd())) { final CharSequence selectedText = mConnection.getSelectedText(0 /* flags, 0 for no styles */); if (TextUtils.isEmpty(selectedText)) return; // Race condition with the input connection - mRecapitalizeStatus.initialize(mLastSelectionStart, mLastSelectionEnd, - selectedText.toString(), + mRecapitalizeStatus.initialize(mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd(), selectedText.toString(), settingsValues.mLocale, settingsValues.mSpacingAndPunctuations.mWordSeparators); // We trim leading and trailing whitespace. mRecapitalizeStatus.trim(); - // Trimming the object may have changed the length of the string, and we need to - // reposition the selection handles accordingly. As this result in an IPC call, - // only do it if it's actually necessary, in other words if the recapitalize status - // is not set at the same place as before. - if (!mRecapitalizeStatus.isSetAt(mLastSelectionStart, mLastSelectionEnd)) { - mLastSelectionStart = mRecapitalizeStatus.getNewCursorStart(); - mLastSelectionEnd = mRecapitalizeStatus.getNewCursorEnd(); - } } mConnection.finishComposingText(); mRecapitalizeStatus.rotate(); - final int numCharsDeleted = mLastSelectionEnd - mLastSelectionStart; - mConnection.setSelection(mLastSelectionEnd, mLastSelectionEnd); + final int numCharsDeleted = mConnection.getExpectedSelectionEnd() + - mConnection.getExpectedSelectionStart(); + mConnection.setSelection(mConnection.getExpectedSelectionEnd(), + mConnection.getExpectedSelectionEnd()); mConnection.deleteSurroundingText(numCharsDeleted, 0); mConnection.commitText(mRecapitalizeStatus.getRecapitalizedString(), 0); - mLastSelectionStart = mRecapitalizeStatus.getNewCursorStart(); - mLastSelectionEnd = mRecapitalizeStatus.getNewCursorEnd(); - mConnection.setSelection(mLastSelectionStart, mLastSelectionEnd); + mConnection.setSelection(mRecapitalizeStatus.getNewCursorStart(), + mRecapitalizeStatus.getNewCursorEnd()); } private void performAdditionToUserHistoryDictionary(final SettingsValues settingsValues, @@ -1053,13 +1042,12 @@ public final class InputLogic { * do nothing. * * @param settingsValues the current values of the settings. - * @param offset how much the cursor is expected to have moved since the last updateSelection. * @param includeResumedWordInSuggestions whether to include the word on which we resume * suggestions in the suggestion list. */ // TODO: make this private. public void restartSuggestionsOnWordTouchedByCursor(final SettingsValues settingsValues, - final int offset, final boolean includeResumedWordInSuggestions, + final boolean includeResumedWordInSuggestions, // TODO: Remove this argument. final KeyboardSwitcher keyboardSwitcher) { // HACK: We may want to special-case some apps that exhibit bad behavior in case of @@ -1072,10 +1060,10 @@ public final class InputLogic { // how to segment them yet. if (!settingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces) return; // If the cursor is not touching a word, or if there is a selection, return right away. - if (mLastSelectionStart != mLastSelectionEnd) return; + if (mConnection.hasSelection()) return; // If we don't know the cursor location, return. - if (mLastSelectionStart < 0) return; - final int expectedCursorPosition = mLastSelectionStart + offset; // We know Start == End + if (mConnection.getExpectedSelectionStart() < 0) return; + final int expectedCursorPosition = mConnection.getExpectedSelectionStart(); if (!mConnection.isCursorTouchingWord(settingsValues)) return; final TextRange range = mConnection.getWordRangeAtCursor( settingsValues.mSpacingAndPunctuations.mWordSeparators, @@ -1119,19 +1107,8 @@ public final class InputLogic { keyboardSwitcher.getKeyboard()); mWordComposer.setCursorPositionWithinWord( typedWord.codePointCount(0, numberOfCharsInWordBeforeCursor)); - // TODO: Change these lines to setComposingRegion(cursorPosition, - // cursorPosition + range.getNumberOfCharsInWordAfterCursor()); - if (0 != offset) { - // Backspace was pressed. We are at the end of a word, and we don't know the cursor - // position for sure, so use relative methods. - mConnection.deleteSurroundingText(numberOfCharsInWordBeforeCursor, 0); - mConnection.setComposingText(typedWord, 1); - } else { - // This is recorrection. The cursor position is reasonably reliable, and the cursor - // may be in the middle of a word so use setComposingRegion. - mConnection.setComposingRegion(expectedCursorPosition - numberOfCharsInWordBeforeCursor, + mConnection.setComposingRegion(expectedCursorPosition - numberOfCharsInWordBeforeCursor, expectedCursorPosition + range.getNumberOfCharsInWordAfterCursor()); - } if (suggestions.isEmpty()) { // We come here if there weren't any suggestion spans on this word. We will try to // compute suggestions for it instead. @@ -1289,7 +1266,8 @@ public final class InputLogic { public int getCurrentRecapitalizeState() { if (!mRecapitalizeStatus.isActive() - || !mRecapitalizeStatus.isSetAt(mLastSelectionStart, mLastSelectionEnd)) { + || !mRecapitalizeStatus.isSetAt(mConnection.getExpectedSelectionStart(), + mConnection.getExpectedSelectionEnd())) { // Not recapitalizing at the moment return RecapitalizeStatus.NOT_A_RECAPITALIZE_MODE; } @@ -1642,7 +1620,8 @@ public final class InputLogic { // of the auto-correction flash. At this moment, the "typedWord" argument is // ignored by TextView. mConnection.commitCorrection( - new CorrectionInfo(mLastSelectionEnd - typedWord.length(), + new CorrectionInfo( + mConnection.getExpectedSelectionEnd() - typedWord.length(), typedWord, autoCorrection)); } } @@ -1691,41 +1670,6 @@ public final class InputLogic { } /** - * Try to get the text from the editor to expose lies the framework may have been - * telling us. Concretely, when the device rotates, the frameworks tells us about where the - * cursor used to be initially in the editor at the time it first received the focus; this - * may be completely different from the place it is upon rotation. Since we don't have any - * means to get the real value, try at least to ask the text view for some characters and - * detect the most damaging cases: when the cursor position is declared to be much smaller - * than it really is. - */ - private void tryFixLyingCursorPosition() { - final CharSequence textBeforeCursor = mConnection.getTextBeforeCursor( - Constants.EDITOR_CONTENTS_CACHE_SIZE, 0); - if (null == textBeforeCursor) { - mLastSelectionStart = mLastSelectionEnd = Constants.NOT_A_CURSOR_POSITION; - } else { - final int textLength = textBeforeCursor.length(); - if (textLength > mLastSelectionStart - || (textLength < Constants.EDITOR_CONTENTS_CACHE_SIZE - && mLastSelectionStart < Constants.EDITOR_CONTENTS_CACHE_SIZE)) { - // It should not be possible to have only one of those variables be - // NOT_A_CURSOR_POSITION, so if they are equal, either the selection is zero-sized - // (simple cursor, no selection) or there is no cursor/we don't know its pos - final boolean wasEqual = mLastSelectionStart == mLastSelectionEnd; - mLastSelectionStart = textLength; - // We can't figure out the value of mLastSelectionEnd :( - // But at least if it's smaller than mLastSelectionStart something is wrong, - // and if they used to be equal we also don't want to make it look like there is a - // selection. - if (wasEqual || mLastSelectionStart > mLastSelectionEnd) { - mLastSelectionEnd = mLastSelectionStart; - } - } - } - } - - /** * Retry resetting caches in the rich input connection. * * When the editor can't be accessed we can't reset the caches, so we schedule a retry. @@ -1742,7 +1686,8 @@ public final class InputLogic { // TODO: remove these arguments final KeyboardSwitcher keyboardSwitcher, final LatinIME.UIHandler handler) { if (!mConnection.resetCachesUponCursorMoveAndReturnSuccess( - mLastSelectionStart, mLastSelectionEnd, false)) { + mConnection.getExpectedSelectionStart(), mConnection.getExpectedSelectionEnd(), + false)) { if (0 < remainingTries) { handler.postResetCaches(tryResumeSuggestions, remainingTries - 1); return; @@ -1750,7 +1695,7 @@ public final class InputLogic { // If remainingTries is 0, we should stop waiting for new tries, but it's still // better to load the keyboard (less things will be broken). } - tryFixLyingCursorPosition(); + mConnection.tryFixLyingCursorPosition(); keyboardSwitcher.loadKeyboard(getCurrentInputEditorInfo(), settingsValues); if (tryResumeSuggestions) { handler.postResumeSuggestions(); |