Example usage for android.view.inputmethod InputConnection endBatchEdit

Introduction

In this page you can find the example usage for android.view.inputmethod InputConnection endBatchEdit.

Prototype

boolean endBatchEdit();

Source Link

Document

Tell the editor that you are done with a batch edit previously initiated with #beginBatchEdit .

Usage

From source file:com.anysoftkeyboard.AnySoftKeyboard.java

private void handleDeleteLastCharacter(boolean forMultiTap) {
    InputConnection ic = getCurrentInputConnection();

    boolean deleteChar = false;
    if (TextEntryState.isPredicting()) {
        final boolean wordManipulation = mWord.length() > 0 && mWord.cursorPosition() > 0;
        if (wordManipulation) {
            mWord.deleteLast();/*w  w w  . j  a  va2 s .c om*/
            final int cursorPosition;
            if (mWord.cursorPosition() != mWord.length())
                cursorPosition = getCursorPosition(ic);
            else
                cursorPosition = -1;

            if (cursorPosition >= 0)
                ic.beginBatchEdit();

            ic.setComposingText(mWord.getTypedWord(), 1);
            if (mWord.length() == 0) {
                TextEntryState.newSession(mPredictionOn);
            } else if (cursorPosition >= 0) {
                ic.setSelection(cursorPosition - 1, cursorPosition - 1);
            }

            if (cursorPosition >= 0)
                ic.endBatchEdit();

            postUpdateSuggestions();
        } else {
            ic.deleteSurroundingText(1, 0);
        }
    } else {
        deleteChar = true;
    }

    TextEntryState.backspace();
    if (TextEntryState.getState() == TextEntryState.State.UNDO_COMMIT) {
        revertLastWord();
    } else if (deleteChar) {
        //just making sure that
        if (mCandidateView != null)
            mCandidateView.dismissAddToDictionaryHint();

        if (!forMultiTap) {
            sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
        } else {
            // this code tries to delete the text in a different way,
            // because of multi-tap stuff
            // using "deleteSurroundingText" will actually get the input
            // updated faster!
            // but will not handle "delete all selected text" feature,
            // hence the "if (!forMultiTap)" above
            final CharSequence beforeText = ic == null ? null : ic.getTextBeforeCursor(1, 0);
            final int textLengthBeforeDelete = (TextUtils.isEmpty(beforeText)) ? 0 : beforeText.length();
            if (textLengthBeforeDelete > 0)
                ic.deleteSurroundingText(1, 0);
            else
                sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
        }
    }
}

---

From source file:org.distantshoresmedia.keyboard.LatinIME.java

private void swapPunctuationAndSpace() {
    final InputConnection ic = getCurrentInputConnection();
    if (ic == null)
        return;//from   w  ww.j a  va 2 s .  c o m
    CharSequence lastTwo = ic.getTextBeforeCursor(2, 0);
    if (lastTwo != null && lastTwo.length() == 2 && lastTwo.charAt(0) == ASCII_SPACE
            && isSentenceSeparator(lastTwo.charAt(1))) {
        ic.beginBatchEdit();
        ic.deleteSurroundingText(2, 0);
        ic.commitText(lastTwo.charAt(1) + " ", 1);
        ic.endBatchEdit();
        updateShiftKeyState(getCurrentInputEditorInfo());
        mJustAddedAutoSpace = true;
    }
}

---

From source file:org.distantshoresmedia.keyboard.LatinIME.java

private void reswapPeriodAndSpace() {
    final InputConnection ic = getCurrentInputConnection();
    if (ic == null)
        return;/*from w  ww.j av a2 s .co  m*/
    CharSequence lastThree = ic.getTextBeforeCursor(3, 0);
    if (lastThree != null && lastThree.length() == 3 && lastThree.charAt(0) == ASCII_PERIOD
            && lastThree.charAt(1) == ASCII_SPACE && lastThree.charAt(2) == ASCII_PERIOD) {
        ic.beginBatchEdit();
        ic.deleteSurroundingText(3, 0);
        ic.commitText(" ..", 1);
        ic.endBatchEdit();
        updateShiftKeyState(getCurrentInputEditorInfo());
    }
}

---

From source file:org.distantshoresmedia.keyboard.LatinIME.java

private void doubleSpace() {
    // if (!mAutoPunctuate) return;
    if (mCorrectionMode == Suggest.CORRECTION_NONE)
        return;//from   w  ww  .ja v  a  2s.  com
    final InputConnection ic = getCurrentInputConnection();
    if (ic == null)
        return;
    CharSequence lastThree = ic.getTextBeforeCursor(3, 0);
    if (lastThree != null && lastThree.length() == 3 && Character.isLetterOrDigit(lastThree.charAt(0))
            && lastThree.charAt(1) == ASCII_SPACE && lastThree.charAt(2) == ASCII_SPACE) {
        ic.beginBatchEdit();
        ic.deleteSurroundingText(2, 0);
        ic.commitText(". ", 1);
        ic.endBatchEdit();
        updateShiftKeyState(getCurrentInputEditorInfo());
        mJustAddedAutoSpace = true;
    }
}

---

From source file:org.pocketworkstation.pckeyboard.LatinIME.java

public void pickSuggestionManually(int index, CharSequence suggestion) {
    List<CharSequence> suggestions = mCandidateView.getSuggestions();

    final boolean correcting = TextEntryState.isCorrecting();
    InputConnection ic = getCurrentInputConnection();
    if (ic != null) {
        ic.beginBatchEdit();//from w w w  .j av a2  s.com
    }
    if (mCompletionOn && mCompletions != null && index >= 0 && index < mCompletions.length) {
        CompletionInfo ci = mCompletions[index];
        if (ic != null) {
            ic.commitCompletion(ci);
        }
        mCommittedLength = suggestion.length();
        if (mCandidateView != null) {
            mCandidateView.clear();
        }
        updateShiftKeyState(getCurrentInputEditorInfo());
        if (ic != null) {
            ic.endBatchEdit();
        }
        return;
    }

    // If this is a punctuation, apply it through the normal key press
    if (suggestion.length() == 1
            && (isWordSeparator(suggestion.charAt(0)) || isSuggestedPunctuation(suggestion.charAt(0)))) {
        final char primaryCode = suggestion.charAt(0);
        onKey(primaryCode, new int[] { primaryCode }, LatinKeyboardBaseView.NOT_A_TOUCH_COORDINATE,
                LatinKeyboardBaseView.NOT_A_TOUCH_COORDINATE);
        if (ic != null) {
            ic.endBatchEdit();
        }
        return;
    }
    mJustAccepted = true;
    pickSuggestion(suggestion, correcting);
    // Add the word to the auto dictionary if it's not a known word
    if (index == 0) {
        addToDictionaries(suggestion, AutoDictionary.FREQUENCY_FOR_PICKED);
    } else {
        addToBigramDictionary(suggestion, 1);
    }
    TextEntryState.acceptedSuggestion(mComposing.toString(), suggestion);
    // Follow it with a space
    if (mAutoSpace && !correcting) {
        sendSpace();
        mJustAddedAutoSpace = true;
    }

    final boolean showingAddToDictionaryHint = index == 0 && mCorrectionMode > 0
            && !mSuggest.isValidWord(suggestion) && !mSuggest.isValidWord(suggestion.toString().toLowerCase());

    if (!correcting) {
        // Fool the state watcher so that a subsequent backspace will not do
        // a revert, unless
        // we just did a correction, in which case we need to stay in
        // TextEntryState.State.PICKED_SUGGESTION state.
        TextEntryState.typedCharacter((char) ASCII_SPACE, true);
        setNextSuggestions();
    } else if (!showingAddToDictionaryHint) {
        // If we're not showing the "Touch again to save", then show
        // corrections again.
        // In case the cursor position doesn't change, make sure we show the
        // suggestions again.
        clearSuggestions();
        postUpdateOldSuggestions();
    }
    if (showingAddToDictionaryHint) {
        mCandidateView.showAddToDictionaryHint(suggestion);
    }
    if (ic != null) {
        ic.endBatchEdit();
    }
}

---

From source file:org.distantshoresmedia.keyboard.LatinIME.java

public void pickSuggestionManually(int index, CharSequence suggestion) {
    List<CharSequence> suggestions = mCandidateView.getSuggestions();

    final boolean correcting = TextEntryState.isCorrecting();
    InputConnection ic = getCurrentInputConnection();
    if (ic != null) {
        ic.beginBatchEdit();/*from   w ww.j  a  va2  s .  co m*/
    }
    if (mCompletionOn && mCompletions != null && index >= 0 && index < mCompletions.length) {
        CompletionInfo ci = mCompletions[index];
        if (ic != null) {
            ic.commitCompletion(ci);
        }
        mCommittedLength = suggestion.length();
        if (mCandidateView != null) {
            mCandidateView.clear();
        }
        updateShiftKeyState(getCurrentInputEditorInfo());
        if (ic != null) {
            ic.endBatchEdit();
        }
        return;
    }

    // If this is a punctuation, apply it through the normal key press
    if (suggestion.length() == 1
            && (isWordSeparator(suggestion.charAt(0)) || isSuggestedPunctuation(suggestion.charAt(0)))) {
        // Word separators are suggested before the user inputs something.
        // So, TKIMELogger logs "" as a user's input.
        TKIMELogger.logOnManualSuggestion("", suggestion.toString(), index, suggestions);
        final char primaryCode = suggestion.charAt(0);
        onKey(primaryCode, new int[] { primaryCode }, BaseKeyboardView.NOT_A_TOUCH_COORDINATE,
                BaseKeyboardView.NOT_A_TOUCH_COORDINATE);
        if (ic != null) {
            ic.endBatchEdit();
        }
        return;
    }
    mJustAccepted = true;
    pickSuggestion(suggestion, correcting);
    // Add the word to the auto dictionary if it's not a known word
    if (index == 0) {
        addToDictionaries(suggestion, AutoDictionary.FREQUENCY_FOR_PICKED);
    } else {
        addToBigramDictionary(suggestion, 1);
    }
    TKIMELogger.logOnManualSuggestion(mComposing.toString(), suggestion.toString(), index, suggestions);
    TextEntryState.acceptedSuggestion(mComposing.toString(), suggestion);
    // Follow it with a space
    if (mAutoSpace && !correcting) {
        sendSpace();
        mJustAddedAutoSpace = true;
    }

    final boolean showingAddToDictionaryHint = index == 0 && mCorrectionMode > 0
            && !mSuggest.isValidWord(suggestion) && !mSuggest.isValidWord(suggestion.toString().toLowerCase());

    if (!correcting) {
        // Fool the state watcher so that a subsequent backspace will not do
        // a revert, unless
        // we just did a correction, in which case we need to stay in
        // TextEntryState.State.PICKED_SUGGESTION state.
        TextEntryState.typedCharacter((char) ASCII_SPACE, true);
        setNextSuggestions();
    } else if (!showingAddToDictionaryHint) {
        // If we're not showing the "Touch again to save", then show
        // corrections again.
        // In case the cursor position doesn't change, make sure we show the
        // suggestions again.
        clearSuggestions();
        postUpdateOldSuggestions();
    }
    if (showingAddToDictionaryHint) {
        mCandidateView.showAddToDictionaryHint(suggestion);
    }
    if (ic != null) {
        ic.endBatchEdit();
    }
}

---

From source file:org.distantshoresmedia.keyboard.LatinIME.java

public void onText(CharSequence text) {
    //mDeadAccentBuffer.clear();  // FIXME
    InputConnection ic = getCurrentInputConnection();
    if (ic == null)
        return;//from  ww w.  j  a  v  a 2s .com
    if (mPredicting && text.length() == 1) {
        // If adding a single letter, treat it as a regular keystroke so
        // that completion works as expected.
        int c = text.charAt(0);
        if (!isWordSeparator(c)) {
            int[] codes = { c };
            handleCharacter(c, codes);
            return;
        }
    }
    abortCorrection(false);
    ic.beginBatchEdit();
    if (mPredicting) {
        commitTyped(ic, true);
    }
    maybeRemovePreviousPeriod(text);
    ic.commitText(text, 1);
    ic.endBatchEdit();
    updateShiftKeyState(getCurrentInputEditorInfo());
    mKeyboardSwitcher.onKey(0); // dummy key code.
    mJustRevertedSeparator = null;
    mJustAddedAutoSpace = false;
    mEnteredText = text;
}

---

From source file:com.yek.keyboard.anysoftkeyboard.AnySoftKeyboard.java

private void onFunctionKey(final int primaryCode, final Keyboard.Key key, final int multiTapIndex,
        final int[] nearByKeyCodes, final boolean fromUI) {
    if (BuildConfig.DEBUG)
        Logger.d(TAG, "onFunctionKey %d", primaryCode);

    final InputConnection ic = getCurrentInputConnection();

    switch (primaryCode) {
    case KeyCodes.DELETE:
        if (ic == null)// if we don't want to do anything, lets check null first.
            break;
        // we do backword if the shift is pressed while pressing
        // backspace (like in a PC)
        if (mAskPrefs.useBackword() && mShiftKeyState.isPressed() && !mShiftKeyState.isLocked()) {
            handleBackWord(ic);// w  ww .j  a  v a  2  s . c  o  m
        } else {
            handleDeleteLastCharacter(false);
        }
        break;
    case KeyCodes.SHIFT:
        if (fromUI) {
            handleShift();
        } else {
            //not from UI (user not actually pressed that button)
            onPress(primaryCode);
            onRelease(primaryCode);
        }
        break;
    case KeyCodes.SHIFT_LOCK:
        mShiftKeyState.toggleLocked();
        handleShift();
        break;
    case KeyCodes.DELETE_WORD:
        if (ic == null)// if we don't want to do anything, lets check
            // null first.
            break;
        handleBackWord(ic);
        break;
    case KeyCodes.CLEAR_INPUT:
        if (ic != null) {
            ic.beginBatchEdit();
            abortCorrectionAndResetPredictionState(false);
            ic.deleteSurroundingText(Integer.MAX_VALUE, Integer.MAX_VALUE);
            ic.endBatchEdit();
        }
        break;
    case KeyCodes.CTRL:
        if (fromUI) {
            handleControl();
        } else {
            //not from UI (user not actually pressed that button)
            onPress(primaryCode);
            onRelease(primaryCode);
        }
        break;
    case KeyCodes.CTRL_LOCK:
        mControlKeyState.toggleLocked();
        handleControl();
        break;
    case KeyCodes.ARROW_LEFT:
    case KeyCodes.ARROW_RIGHT:
        final int keyEventKeyCode = primaryCode == KeyCodes.ARROW_LEFT ? KeyEvent.KEYCODE_DPAD_LEFT
                : KeyEvent.KEYCODE_DPAD_RIGHT;
        if (!handleSelectionExpending(keyEventKeyCode, ic, mGlobalSelectionStartPosition,
                mGlobalCursorPosition)) {
            sendDownUpKeyEvents(keyEventKeyCode);
        }
        break;
    case KeyCodes.ARROW_UP:
        sendDownUpKeyEvents(KeyEvent.KEYCODE_DPAD_UP);
        break;
    case KeyCodes.ARROW_DOWN:
        sendDownUpKeyEvents(KeyEvent.KEYCODE_DPAD_DOWN);
        break;
    case KeyCodes.MOVE_HOME:
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            sendDownUpKeyEvents(0x0000007a/*API 11:KeyEvent.KEYCODE_MOVE_HOME*/);
        } else {
            if (ic != null) {
                CharSequence textBefore = ic.getTextBeforeCursor(1024, 0);
                if (!TextUtils.isEmpty(textBefore)) {
                    int newPosition = textBefore.length() - 1;
                    while (newPosition > 0) {
                        char chatAt = textBefore.charAt(newPosition - 1);
                        if (chatAt == '\n' || chatAt == '\r') {
                            break;
                        }
                        newPosition--;
                    }
                    if (newPosition < 0)
                        newPosition = 0;
                    ic.setSelection(newPosition, newPosition);
                }
            }
        }
        break;
    case KeyCodes.MOVE_END:
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            //API 11: KeyEvent.KEYCODE_MOVE_END
            sendDownUpKeyEvents(0x0000007b);
        } else {
            if (ic != null) {
                CharSequence textAfter = ic.getTextAfterCursor(1024, 0);
                if (!TextUtils.isEmpty(textAfter)) {
                    int newPosition = 1;
                    while (newPosition < textAfter.length()) {
                        char chatAt = textAfter.charAt(newPosition);
                        if (chatAt == '\n' || chatAt == '\r') {
                            break;
                        }
                        newPosition++;
                    }
                    if (newPosition > textAfter.length())
                        newPosition = textAfter.length();
                    try {
                        CharSequence textBefore = ic.getTextBeforeCursor(Integer.MAX_VALUE, 0);
                        if (!TextUtils.isEmpty(textBefore)) {
                            newPosition = newPosition + textBefore.length();
                        }
                        ic.setSelection(newPosition, newPosition);
                    } catch (Throwable e/*I'm using Integer.MAX_VALUE, it's scary.*/) {
                        Logger.w(TAG, "Failed to getTextBeforeCursor.", e);
                    }
                }
            }
        }
        break;
    case KeyCodes.VOICE_INPUT:
        if (mVoiceRecognitionTrigger.isInstalled()) {
            mVoiceRecognitionTrigger
                    .startVoiceRecognition(getCurrentAlphabetKeyboard().getDefaultDictionaryLocale());
        } else {
            Intent voiceInputNotInstalledIntent = new Intent(getApplicationContext(),
                    VoiceInputNotInstalledActivity.class);
            voiceInputNotInstalledIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(voiceInputNotInstalledIntent);
        }
        break;
    case KeyCodes.CANCEL:
        handleClose();
        break;
    case KeyCodes.SETTINGS:
        showOptionsMenu();
        break;
    case KeyCodes.SPLIT_LAYOUT:
    case KeyCodes.MERGE_LAYOUT:
    case KeyCodes.COMPACT_LAYOUT_TO_RIGHT:
    case KeyCodes.COMPACT_LAYOUT_TO_LEFT:
        if (getInputView() != null) {
            mKeyboardInCondensedMode = CondenseType.fromKeyCode(primaryCode);
            setKeyboardForView(getCurrentKeyboard());
        }
        break;
    case KeyCodes.DOMAIN:
        onText(key, mAskPrefs.getDomainText());
        break;
    case KeyCodes.QUICK_TEXT:
        onQuickTextRequested(key);
        break;
    case KeyCodes.QUICK_TEXT_POPUP:
        onQuickTextKeyboardRequested(key);
        break;
    case KeyCodes.MODE_SYMOBLS:
        nextKeyboard(getCurrentInputEditorInfo(), KeyboardSwitcher.NextKeyboardType.Symbols);
        break;
    case KeyCodes.MODE_ALPHABET:
        if (getKeyboardSwitcher().shouldPopupForLanguageSwitch()) {
            showLanguageSelectionDialog();
        } else {
            nextKeyboard(getCurrentInputEditorInfo(), KeyboardSwitcher.NextKeyboardType.Alphabet);
        }
        break;
    case KeyCodes.UTILITY_KEYBOARD:
        getInputView().openUtilityKeyboard();
        break;
    case KeyCodes.MODE_ALPHABET_POPUP:
        showLanguageSelectionDialog();
        break;
    case KeyCodes.ALT:
        nextAlterKeyboard(getCurrentInputEditorInfo());
        break;
    case KeyCodes.KEYBOARD_CYCLE:
        nextKeyboard(getCurrentInputEditorInfo(), KeyboardSwitcher.NextKeyboardType.Any);
        break;
    case KeyCodes.KEYBOARD_REVERSE_CYCLE:
        nextKeyboard(getCurrentInputEditorInfo(), KeyboardSwitcher.NextKeyboardType.PreviousAny);
        break;
    case KeyCodes.KEYBOARD_CYCLE_INSIDE_MODE:
        nextKeyboard(getCurrentInputEditorInfo(), KeyboardSwitcher.NextKeyboardType.AnyInsideMode);
        break;
    case KeyCodes.KEYBOARD_MODE_CHANGE:
        nextKeyboard(getCurrentInputEditorInfo(), KeyboardSwitcher.NextKeyboardType.OtherMode);
        break;
    case KeyCodes.CLIPBOARD_COPY:
    case KeyCodes.CLIPBOARD_PASTE:
    case KeyCodes.CLIPBOARD_CUT:
    case KeyCodes.CLIPBOARD_SELECT_ALL:
    case KeyCodes.CLIPBOARD_PASTE_POPUP:
    case KeyCodes.CLIPBOARD_SELECT:
        handleClipboardOperation(key, primaryCode, ic);
        //not allowing undo on-text in clipboard paste operations.
        if (primaryCode == KeyCodes.CLIPBOARD_PASTE)
            mCommittedWord = "";
        break;
    default:
        if (BuildConfig.DEBUG) {
            //this should not happen! We should handle ALL function keys.
            throw new RuntimeException("UNHANDLED FUNCTION KEY! primary code " + primaryCode);
        } else {
            Logger.w(TAG, "UNHANDLED FUNCTION KEY! primary code %d. Ignoring.", primaryCode);
        }
    }
}

---

From source file:com.anysoftkeyboard.AnySoftKeyboard.java

private void onFunctionKey(final int primaryCode, final Key key, final int multiTapIndex,
        final int[] nearByKeyCodes, final boolean fromUI) {
    if (BuildConfig.DEBUG)
        Logger.d(TAG, "onFunctionKey %d", primaryCode);

    final InputConnection ic = getCurrentInputConnection();

    switch (primaryCode) {
    case KeyCodes.DELETE:
        if (ic == null)// if we don't want to do anything, lets check null first.
            break;
        // we do backword if the shift is pressed while pressing
        // backspace (like in a PC)
        if (mAskPrefs.useBackword() && mShiftKeyState.isPressed() && !mShiftKeyState.isLocked()) {
            handleBackWord(ic);//from w ww. ja va 2  s . c  o  m
        } else {
            handleDeleteLastCharacter(false);
        }
        break;
    case KeyCodes.SHIFT:
        if (fromUI) {
            handleShift();
        } else {
            //not from UI (user not actually pressed that button)
            onPress(primaryCode);
            onRelease(primaryCode);
        }
        break;
    case KeyCodes.SHIFT_LOCK:
        mShiftKeyState.toggleLocked();
        handleShift();
        break;
    case KeyCodes.DELETE_WORD:
        if (ic == null)// if we don't want to do anything, lets check
            // null first.
            break;
        handleBackWord(ic);
        break;
    case KeyCodes.CLEAR_INPUT:
        if (ic != null) {
            ic.beginBatchEdit();
            abortCorrectionAndResetPredictionState(false);
            ic.deleteSurroundingText(Integer.MAX_VALUE, Integer.MAX_VALUE);
            ic.endBatchEdit();
        }
        break;
    case KeyCodes.CTRL:
        if (fromUI) {
            handleControl();
        } else {
            //not from UI (user not actually pressed that button)
            onPress(primaryCode);
            onRelease(primaryCode);
        }
        break;
    case KeyCodes.CTRL_LOCK:
        mControlKeyState.toggleLocked();
        handleControl();
        break;
    case KeyCodes.ARROW_LEFT:
    case KeyCodes.ARROW_RIGHT:
        final int keyEventKeyCode = primaryCode == KeyCodes.ARROW_LEFT ? KeyEvent.KEYCODE_DPAD_LEFT
                : KeyEvent.KEYCODE_DPAD_RIGHT;
        if (!handleSelectionExpending(keyEventKeyCode, ic, mGlobalSelectionStartPosition,
                mGlobalCursorPosition)) {
            sendDownUpKeyEvents(keyEventKeyCode);
        }
        break;
    case KeyCodes.ARROW_UP:
        sendDownUpKeyEvents(KeyEvent.KEYCODE_DPAD_UP);
        break;
    case KeyCodes.ARROW_DOWN:
        sendDownUpKeyEvents(KeyEvent.KEYCODE_DPAD_DOWN);
        break;
    case KeyCodes.MOVE_HOME:
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            sendDownUpKeyEvents(0x0000007a/*API 11:KeyEvent.KEYCODE_MOVE_HOME*/);
        } else {
            if (ic != null) {
                CharSequence textBefore = ic.getTextBeforeCursor(1024, 0);
                if (!TextUtils.isEmpty(textBefore)) {
                    int newPosition = textBefore.length() - 1;
                    while (newPosition > 0) {
                        char chatAt = textBefore.charAt(newPosition - 1);
                        if (chatAt == '\n' || chatAt == '\r') {
                            break;
                        }
                        newPosition--;
                    }
                    if (newPosition < 0)
                        newPosition = 0;
                    ic.setSelection(newPosition, newPosition);
                }
            }
        }
        break;
    case KeyCodes.MOVE_END:
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            //API 11: KeyEvent.KEYCODE_MOVE_END
            sendDownUpKeyEvents(0x0000007b);
        } else {
            if (ic != null) {
                CharSequence textAfter = ic.getTextAfterCursor(1024, 0);
                if (!TextUtils.isEmpty(textAfter)) {
                    int newPosition = 1;
                    while (newPosition < textAfter.length()) {
                        char chatAt = textAfter.charAt(newPosition);
                        if (chatAt == '\n' || chatAt == '\r') {
                            break;
                        }
                        newPosition++;
                    }
                    if (newPosition > textAfter.length())
                        newPosition = textAfter.length();
                    try {
                        CharSequence textBefore = ic.getTextBeforeCursor(Integer.MAX_VALUE, 0);
                        if (!TextUtils.isEmpty(textBefore)) {
                            newPosition = newPosition + textBefore.length();
                        }
                        ic.setSelection(newPosition, newPosition);
                    } catch (Throwable e/*I'm using Integer.MAX_VALUE, it's scary.*/) {
                        Logger.w(TAG, "Failed to getTextBeforeCursor.", e);
                    }
                }
            }
        }
        break;
    case KeyCodes.VOICE_INPUT:
        if (mVoiceRecognitionTrigger.isInstalled()) {
            mVoiceRecognitionTrigger
                    .startVoiceRecognition(getCurrentAlphabetKeyboard().getDefaultDictionaryLocale());
        } else {
            Intent voiceInputNotInstalledIntent = new Intent(getApplicationContext(),
                    VoiceInputNotInstalledActivity.class);
            voiceInputNotInstalledIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(voiceInputNotInstalledIntent);
        }
        break;
    case KeyCodes.CANCEL:
        hideWindow();
        break;
    case KeyCodes.SETTINGS:
        showOptionsMenu();
        break;
    case KeyCodes.SPLIT_LAYOUT:
    case KeyCodes.MERGE_LAYOUT:
    case KeyCodes.COMPACT_LAYOUT_TO_RIGHT:
    case KeyCodes.COMPACT_LAYOUT_TO_LEFT:
        if (getInputView() != null) {
            mKeyboardInCondensedMode = CondenseType.fromKeyCode(primaryCode);
            setKeyboardForView(getCurrentKeyboard());
        }
        break;
    case KeyCodes.DOMAIN:
        onText(key, mAskPrefs.getDomainText());
        break;
    case KeyCodes.QUICK_TEXT:
        onQuickTextRequested(key);
        break;
    case KeyCodes.QUICK_TEXT_POPUP:
        onQuickTextKeyboardRequested(key);
        break;
    case KeyCodes.MODE_SYMOBLS:
        nextKeyboard(getCurrentInputEditorInfo(), NextKeyboardType.Symbols);
        break;
    case KeyCodes.MODE_ALPHABET:
        if (getKeyboardSwitcher().shouldPopupForLanguageSwitch()) {
            showLanguageSelectionDialog();
        } else {
            nextKeyboard(getCurrentInputEditorInfo(), NextKeyboardType.Alphabet);
        }
        break;
    case KeyCodes.UTILITY_KEYBOARD:
        getInputView().openUtilityKeyboard();
        break;
    case KeyCodes.MODE_ALPHABET_POPUP:
        showLanguageSelectionDialog();
        break;
    case KeyCodes.ALT:
        nextAlterKeyboard(getCurrentInputEditorInfo());
        break;
    case KeyCodes.KEYBOARD_CYCLE:
        nextKeyboard(getCurrentInputEditorInfo(), NextKeyboardType.Any);
        break;
    case KeyCodes.KEYBOARD_REVERSE_CYCLE:
        nextKeyboard(getCurrentInputEditorInfo(), NextKeyboardType.PreviousAny);
        break;
    case KeyCodes.KEYBOARD_CYCLE_INSIDE_MODE:
        nextKeyboard(getCurrentInputEditorInfo(), NextKeyboardType.AnyInsideMode);
        break;
    case KeyCodes.KEYBOARD_MODE_CHANGE:
        nextKeyboard(getCurrentInputEditorInfo(), NextKeyboardType.OtherMode);
        break;
    case KeyCodes.CLIPBOARD_COPY:
    case KeyCodes.CLIPBOARD_PASTE:
    case KeyCodes.CLIPBOARD_CUT:
    case KeyCodes.CLIPBOARD_SELECT_ALL:
    case KeyCodes.CLIPBOARD_PASTE_POPUP:
    case KeyCodes.CLIPBOARD_SELECT:
        handleClipboardOperation(key, primaryCode, ic);
        //not allowing undo on-text in clipboard paste operations.
        if (primaryCode == KeyCodes.CLIPBOARD_PASTE)
            mCommittedWord = "";
        break;
    default:
        if (BuildConfig.DEBUG) {
            //this should not happen! We should handle ALL function keys.
            throw new RuntimeException("UNHANDLED FUNCTION KEY! primary code " + primaryCode);
        } else {
            Logger.w(TAG, "UNHANDLED FUNCTION KEY! primary code %d. Ignoring.", primaryCode);
        }
    }
}

---

From source file:org.distantshoresmedia.keyboard.LatinIME.java

private void handleBackspace() {
    boolean deleteChar = false;
    InputConnection ic = getCurrentInputConnection();
    if (ic == null)
        return;/*from   w w w . jav  a2 s . com*/

    ic.beginBatchEdit();

    if (mPredicting) {
        final int length = mComposing.length();
        if (length > 0) {
            mComposing.delete(length - 1, length);
            mWord.deleteLast();
            ic.setComposingText(mComposing, 1);
            if (mComposing.length() == 0) {
                mPredicting = false;
            }
            postUpdateSuggestions();
        } else {
            ic.deleteSurroundingText(1, 0);
        }
    } else {
        deleteChar = true;
    }
    postUpdateShiftKeyState();
    TextEntryState.backspace();
    if (TextEntryState.getState() == TextEntryState.State.UNDO_COMMIT) {
        revertLastWord(deleteChar);
        ic.endBatchEdit();
        return;
    } else if (mEnteredText != null && sameAsTextBeforeCursor(ic, mEnteredText)) {
        ic.deleteSurroundingText(mEnteredText.length(), 0);
    } else if (deleteChar) {
        if (mCandidateView != null && mCandidateView.dismissAddToDictionaryHint()) {
            // Go back to the suggestion mode if the user canceled the
            // "Touch again to save".
            // NOTE: In gerenal, we don't revert the word when backspacing
            // from a manual suggestion pick. We deliberately chose a
            // different behavior only in the case of picking the first
            // suggestion (typed word). It's intentional to have made this
            // inconsistent with backspacing after selecting other
            // suggestions.
            revertLastWord(deleteChar);
        } else {
            sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
            if (mDeleteCount > DELETE_ACCELERATE_AT) {
                sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
            }
        }
    }
    mJustRevertedSeparator = null;
    ic.endBatchEdit();
}

---

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