Refactor LatinKeyboard and LatinKey

This change also moves KeyboardSwitcher and related classes to
com.android.inputmethod.keyboard package.

Multi project change with Ib23017b2

Change-Id: Id7d54b24615fe22ebb540ca847549909e346ee24

1 files changed, 0 insertions, 644 deletions

diff --git a/java/src/com/android/inputmethod/latin/KeyboardSwitcher.java b/java/src/com/android/inputmethod/latin/KeyboardSwitcher.java
deleted file mode 100644
index e8487e798..000000000
--- a/java/src/com/android/inputmethod/latin/KeyboardSwitcher.java
+++ /dev/null
@@ -1,644 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * 
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- * 
- * http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package com.android.inputmethod.latin;
-
-import com.android.inputmethod.keyboard.KeyboardView;
-import com.android.inputmethod.keyboard.KeyboardId;
-import com.android.inputmethod.keyboard.LatinKeyboard;
-import com.android.inputmethod.keyboard.LatinKeyboardView;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.res.Resources;
-import android.util.Log;
-import android.view.InflateException;
-import android.view.inputmethod.InputMethodManager;
-
-import java.lang.ref.SoftReference;
-import java.util.HashMap;
-import java.util.Locale;
-
-public class KeyboardSwitcher implements SharedPreferences.OnSharedPreferenceChangeListener {
-    private static final String TAG = "KeyboardSwitcher";
-    private static final boolean DEBUG = false;
-    public static final boolean DEBUG_STATE = false;
-
-    // Changing DEFAULT_LAYOUT_ID also requires prefs_for_debug.xml to be matched with.
-    public static final String DEFAULT_LAYOUT_ID = "5";
-    public static final String PREF_KEYBOARD_LAYOUT = "pref_keyboard_layout_20100902";
-    private static final int[] THEMES = new int [] {
-        R.layout.input_basic,
-        R.layout.input_basic_highcontrast,
-        R.layout.input_stone_normal,
-        R.layout.input_stone_bold,
-        R.layout.input_gingerbread,
-        R.layout.input_honeycomb, // DEFAULT_LAYOUT_ID
-    };
-
-    private static final int SYMBOLS_MODE_STATE_NONE = 0;
-    private static final int SYMBOLS_MODE_STATE_BEGIN = 1;
-    private static final int SYMBOLS_MODE_STATE_SYMBOL = 2;
-
-    private SubtypeSwitcher mSubtypeSwitcher;
-    private SharedPreferences mPrefs;
-
-    private LatinKeyboardView mInputView;
-    private LatinIME mInputMethodService;
-
-    private ShiftKeyState mShiftKeyState = new ShiftKeyState("Shift");
-    private ModifierKeyState mSymbolKeyState = new ModifierKeyState("Symbol");
-
-    private KeyboardId mSymbolsId;
-    private KeyboardId mSymbolsShiftedId;
-
-    private KeyboardId mCurrentId;
-    private final HashMap<KeyboardId, SoftReference<LatinKeyboard>> mKeyboardCache =
-            new HashMap<KeyboardId, SoftReference<LatinKeyboard>>();
-
-    private int mMode = KeyboardId.MODE_TEXT; /* default value */
-    private int mImeOptions;
-    private boolean mIsSymbols;
-    /** mIsAutoCompletionActive indicates that auto completed word will be input instead of
-     * what user actually typed. */
-    private boolean mIsAutoCompletionActive;
-    private boolean mVoiceKeyEnabled;
-    private boolean mVoiceButtonOnPrimary;
-    private int mSymbolsModeState = SYMBOLS_MODE_STATE_NONE;
-
-    // Indicates whether or not we have the settings key
-    private boolean mHasSettingsKey;
-    private static final int SETTINGS_KEY_MODE_AUTO = R.string.settings_key_mode_auto;
-    private static final int SETTINGS_KEY_MODE_ALWAYS_SHOW =
-            R.string.settings_key_mode_always_show;
-    // NOTE: No need to have SETTINGS_KEY_MODE_ALWAYS_HIDE here because it's not being referred to
-    // in the source code now.
-    // Default is SETTINGS_KEY_MODE_AUTO.
-    private static final int DEFAULT_SETTINGS_KEY_MODE = SETTINGS_KEY_MODE_AUTO;
-
-    private int mLayoutId;
-
-    private static final KeyboardSwitcher sInstance = new KeyboardSwitcher();
-
-    public static KeyboardSwitcher getInstance() {
-        return sInstance;
-    }
-
-    private KeyboardSwitcher() {
-    }
-
-    public static void init(LatinIME ims, SharedPreferences prefs) {
-        sInstance.mInputMethodService = ims;
-        sInstance.mPrefs = prefs;
-        sInstance.mSubtypeSwitcher = SubtypeSwitcher.getInstance();
-
-        sInstance.mLayoutId = Integer.valueOf(
-                prefs.getString(PREF_KEYBOARD_LAYOUT, DEFAULT_LAYOUT_ID));
-        prefs.registerOnSharedPreferenceChangeListener(sInstance);
-    }
-
-    private void makeSymbolsKeyboardIds() {
-        final Locale locale = mSubtypeSwitcher.getInputLocale();
-        final int orientation = mInputMethodService.getResources().getConfiguration().orientation;
-        final int mode = mMode;
-        final int colorScheme = getColorScheme();
-        final boolean hasSettingsKey = mHasSettingsKey;
-        final boolean voiceKeyEnabled = mVoiceKeyEnabled;
-        final boolean hasVoiceKey = voiceKeyEnabled && !mVoiceButtonOnPrimary;
-        final int imeOptions = mImeOptions;
-        // Note: This comment is only applied for phone number keyboard layout.
-        // On non-xlarge device, "@integer/key_switch_alpha_symbol" key code is used to switch
-        // between "phone keyboard" and "phone symbols keyboard".  But on xlarge device,
-        // "@integer/key_shift" key code is used for that purpose in order to properly display
-        // "more" and "locked more" key labels.  To achieve these behavior, we should initialize
-        // mSymbolsId and mSymbolsShiftedId to "phone keyboard" and "phone symbols keyboard"
-        // respectively here for xlarge device's layout switching.
-        mSymbolsId = new KeyboardId(locale, orientation, mode,
-                mode == KeyboardId.MODE_PHONE ? R.xml.kbd_phone : R.xml.kbd_symbols,
-                colorScheme, hasSettingsKey, voiceKeyEnabled, hasVoiceKey, imeOptions, true);
-        mSymbolsShiftedId = new KeyboardId(locale, orientation, mode,
-                mode == KeyboardId.MODE_PHONE ? R.xml.kbd_phone_symbols : R.xml.kbd_symbols_shift,
-                colorScheme, hasSettingsKey, voiceKeyEnabled, hasVoiceKey, imeOptions, true);
-    }
-
-    private boolean hasVoiceKey(boolean isSymbols) {
-        return mVoiceKeyEnabled && (isSymbols != mVoiceButtonOnPrimary);
-    }
-
-    public void loadKeyboard(int mode, int imeOptions, boolean voiceKeyEnabled,
-            boolean voiceButtonOnPrimary) {
-        mSymbolsModeState = SYMBOLS_MODE_STATE_NONE;
-        try {
-            loadKeyboardInternal(mode, imeOptions, voiceKeyEnabled, voiceButtonOnPrimary,
-                    false);
-        } catch (RuntimeException e) {
-            Log.w(TAG, e);
-            LatinImeLogger.logOnException(mode + "," + imeOptions, e);
-        }
-    }
-
-    private void loadKeyboardInternal(int mode, int imeOptions, boolean voiceButtonEnabled,
-            boolean voiceButtonOnPrimary, boolean isSymbols) {
-        if (mInputView == null) return;
-        mInputView.setPreviewEnabled(mInputMethodService.getPopupOn());
-
-        mMode = mode;
-        mImeOptions = imeOptions;
-        mVoiceKeyEnabled = voiceButtonEnabled;
-        mVoiceButtonOnPrimary = voiceButtonOnPrimary;
-        mIsSymbols = isSymbols;
-        // Update the settings key state because number of enabled IMEs could have been changed
-        mHasSettingsKey = getSettingsKeyMode(mPrefs, mInputMethodService);
-        makeSymbolsKeyboardIds();
-
-        KeyboardId id = getKeyboardId(mode, imeOptions, isSymbols);
-        LatinKeyboard keyboard = getKeyboard(id);
-
-        mCurrentId = id;
-        mInputView.setKeyboard(keyboard);
-    }
-
-    private LatinKeyboard getKeyboard(KeyboardId id) {
-        final SoftReference<LatinKeyboard> ref = mKeyboardCache.get(id);
-        LatinKeyboard keyboard = (ref == null) ? null : ref.get();
-        if (keyboard == null) {
-            final Locale savedLocale =  mSubtypeSwitcher.changeSystemLocale(
-                    mSubtypeSwitcher.getInputLocale());
-
-            keyboard = new LatinKeyboard(mInputMethodService, id);
-
-            if (id.mEnableShiftLock) {
-                keyboard.enableShiftLock();
-            }
-
-            mKeyboardCache.put(id, new SoftReference<LatinKeyboard>(keyboard));
-            if (DEBUG)
-                Log.d(TAG, "keyboard cache size=" + mKeyboardCache.size() + ": "
-                        + ((ref == null) ? "LOAD" : "GCed") + " id=" + id);
-
-            mSubtypeSwitcher.changeSystemLocale(savedLocale);
-        } else if (DEBUG) {
-            Log.d(TAG, "keyboard cache size=" + mKeyboardCache.size() + ": HIT  id=" + id);
-        }
-
-        keyboard.onAutoCompletionStateChanged(mIsAutoCompletionActive);
-        keyboard.setShifted(false);
-        return keyboard;
-    }
-
-    private KeyboardId getKeyboardId(int mode, int imeOptions, boolean isSymbols) {
-        final boolean hasVoiceKey = hasVoiceKey(isSymbols);
-        final int charColorId = getColorScheme();
-        final int xmlId;
-        final boolean enableShiftLock;
-
-        if (isSymbols) {
-            if (mode == KeyboardId.MODE_PHONE) {
-                xmlId = R.xml.kbd_phone_symbols;
-            } else if (mode == KeyboardId.MODE_NUMBER) {
-                // Note: MODE_NUMBER keyboard layout has no "switch alpha symbol" key.
-                xmlId = R.xml.kbd_number;
-            } else {
-                xmlId = R.xml.kbd_symbols;
-            }
-            enableShiftLock = false;
-        } else {
-            if (mode == KeyboardId.MODE_PHONE) {
-                xmlId = R.xml.kbd_phone;
-                enableShiftLock = false;
-            } else if (mode == KeyboardId.MODE_NUMBER) {
-                xmlId = R.xml.kbd_number;
-                enableShiftLock = false;
-            } else {
-                xmlId = R.xml.kbd_qwerty;
-                enableShiftLock = true;
-            }
-        }
-        final int orientation = mInputMethodService.getResources().getConfiguration().orientation;
-        final Locale locale = mSubtypeSwitcher.getInputLocale();
-        return new KeyboardId(locale, orientation, mode, xmlId, charColorId,
-                mHasSettingsKey, mVoiceKeyEnabled, hasVoiceKey, imeOptions, enableShiftLock);
-    }
-
-    public int getKeyboardMode() {
-        return mMode;
-    }
-
-    public boolean isAlphabetMode() {
-        return mCurrentId != null && mCurrentId.isAlphabetMode();
-    }
-
-    public boolean isInputViewShown() {
-        return mInputView != null && mInputView.isShown();
-    }
-
-    public boolean isKeyboardAvailable() {
-        if (mInputView != null)
-            return mInputView.getLatinKeyboard() != null;
-        return false;
-    }
-
-    private LatinKeyboard getLatinKeyboard() {
-        if (mInputView != null)
-            return mInputView.getLatinKeyboard();
-        return null;
-    }
-
-    public void setPreferredLetters(int[] frequencies) {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null)
-            latinKeyboard.setPreferredLetters(frequencies);
-    }
-
-    public void keyReleased() {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null)
-            latinKeyboard.keyReleased();
-    }
-
-    public boolean isShiftedOrShiftLocked() {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null)
-            return latinKeyboard.isShiftedOrShiftLocked();
-        return false;
-    }
-
-    public boolean isShiftLocked() {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null)
-            return latinKeyboard.isShiftLocked();
-        return false;
-    }
-
-    public boolean isAutomaticTemporaryUpperCase() {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null)
-            return latinKeyboard.isAutomaticTemporaryUpperCase();
-        return false;
-    }
-
-    public boolean isManualTemporaryUpperCase() {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null)
-            return latinKeyboard.isManualTemporaryUpperCase();
-        return false;
-    }
-
-    private void setManualTemporaryUpperCase(boolean shifted) {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null) {
-            // On non-distinct multi touch panel device, we should also turn off the shift locked
-            // state when shift key is pressed to go to normal mode.
-            // On the other hand, on distinct multi touch panel device, turning off the shift locked
-            // state with shift key pressing is handled by onReleaseShift().
-            if (!hasDistinctMultitouch() && !shifted && latinKeyboard.isShiftLocked()) {
-                latinKeyboard.setShiftLocked(false);
-            }
-            if (latinKeyboard.setShifted(shifted)) {
-                mInputView.invalidateAllKeys();
-            }
-        }
-    }
-
-    private void setShiftLocked(boolean shiftLocked) {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null && latinKeyboard.setShiftLocked(shiftLocked)) {
-            mInputView.invalidateAllKeys();
-        }
-    }
-
-    /**
-     * Toggle keyboard shift state triggered by user touch event.
-     */
-    public void toggleShift() {
-        mInputMethodService.mHandler.cancelUpdateShiftState();
-        if (DEBUG_STATE)
-            Log.d(TAG, "toggleShift:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + mShiftKeyState);
-        if (isAlphabetMode()) {
-            setManualTemporaryUpperCase(!isShiftedOrShiftLocked());
-        } else {
-            toggleShiftInSymbol();
-        }
-    }
-
-    public void toggleCapsLock() {
-        mInputMethodService.mHandler.cancelUpdateShiftState();
-        if (DEBUG_STATE)
-            Log.d(TAG, "toggleCapsLock:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + mShiftKeyState);
-        if (isAlphabetMode()) {
-            if (isShiftLocked()) {
-                // Shift key is long pressed while caps lock state, we will toggle back to normal
-                // state. And mark as if shift key is released.
-                setShiftLocked(false);
-                mShiftKeyState.onRelease();
-            } else {
-                setShiftLocked(true);
-            }
-        }
-    }
-
-    private void setAutomaticTemporaryUpperCase() {
-        LatinKeyboard latinKeyboard = getLatinKeyboard();
-        if (latinKeyboard != null) {
-            latinKeyboard.setAutomaticTemporaryUpperCase();
-            mInputView.invalidateAllKeys();
-        }
-    }
-
-    /**
-     * Update keyboard shift state triggered by connected EditText status change.
-     */
-    public void updateShiftState() {
-        final ShiftKeyState shiftKeyState = mShiftKeyState;
-        if (DEBUG_STATE)
-            Log.d(TAG, "updateShiftState:"
-                    + " autoCaps=" + mInputMethodService.getCurrentAutoCapsState()
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + shiftKeyState);
-        if (isAlphabetMode()) {
-            if (!isShiftLocked() && !shiftKeyState.isIgnoring()) {
-                if (shiftKeyState.isReleasing() && mInputMethodService.getCurrentAutoCapsState()) {
-                    // Only when shift key is releasing, automatic temporary upper case will be set.
-                    setAutomaticTemporaryUpperCase();
-                } else {
-                    setManualTemporaryUpperCase(shiftKeyState.isMomentary());
-                }
-            }
-        } else {
-            // In symbol keyboard mode, we should clear shift key state because only alphabet
-            // keyboard has shift key.
-            shiftKeyState.onRelease();
-        }
-    }
-
-    public void changeKeyboardMode() {
-        if (DEBUG_STATE)
-            Log.d(TAG, "changeKeyboardMode:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + mShiftKeyState);
-        toggleKeyboardMode();
-        if (isShiftLocked() && isAlphabetMode())
-            setShiftLocked(true);
-        updateShiftState();
-    }
-
-    public void onPressShift() {
-        if (!isKeyboardAvailable())
-            return;
-        ShiftKeyState shiftKeyState = mShiftKeyState;
-        if (DEBUG_STATE)
-            Log.d(TAG, "onPressShift:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + shiftKeyState);
-        if (isAlphabetMode()) {
-            if (isShiftLocked()) {
-                // Shift key is pressed while caps lock state, we will treat this state as shifted
-                // caps lock state and mark as if shift key pressed while normal state.
-                shiftKeyState.onPress();
-                setManualTemporaryUpperCase(true);
-            } else if (isAutomaticTemporaryUpperCase()) {
-                // Shift key is pressed while automatic temporary upper case, we have to move to
-                // manual temporary upper case.
-                shiftKeyState.onPress();
-                setManualTemporaryUpperCase(true);
-            } else if (isShiftedOrShiftLocked()) {
-                // In manual upper case state, we just record shift key has been pressing while
-                // shifted state.
-                shiftKeyState.onPressOnShifted();
-            } else {
-                // In base layout, chording or manual temporary upper case mode is started.
-                shiftKeyState.onPress();
-                toggleShift();
-            }
-        } else {
-            // In symbol mode, just toggle symbol and symbol more keyboard.
-            shiftKeyState.onPress();
-            toggleShift();
-        }
-    }
-
-    public void onReleaseShift() {
-        if (!isKeyboardAvailable())
-            return;
-        ShiftKeyState shiftKeyState = mShiftKeyState;
-        if (DEBUG_STATE)
-            Log.d(TAG, "onReleaseShift:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + shiftKeyState);
-        if (isAlphabetMode()) {
-            if (shiftKeyState.isMomentary()) {
-                // After chording input while normal state.
-                toggleShift();
-            } else if (isShiftLocked() && !shiftKeyState.isIgnoring()) {
-                // Shift has been pressed without chording while caps lock state.
-                toggleCapsLock();
-            } else if (isShiftedOrShiftLocked() && shiftKeyState.isPressingOnShifted()) {
-                // Shift has been pressed without chording while shifted state.
-                toggleShift();
-            }
-        }
-        shiftKeyState.onRelease();
-    }
-
-    public void onPressSymbol() {
-        if (DEBUG_STATE)
-            Log.d(TAG, "onReleaseShift:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " symbolKeyState=" + mSymbolKeyState);
-        changeKeyboardMode();
-        mSymbolKeyState.onPress();
-    }
-
-    public void onReleaseSymbol() {
-        if (DEBUG_STATE)
-            Log.d(TAG, "onReleaseShift:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " symbolKeyState=" + mSymbolKeyState);
-        if (mSymbolKeyState.isMomentary())
-            changeKeyboardMode();
-        mSymbolKeyState.onRelease();
-    }
-
-    public void onOtherKeyPressed() {
-        if (DEBUG_STATE)
-            Log.d(TAG, "onOtherKeyPressed:"
-                    + " keyboard=" + getLatinKeyboard().getKeyboardShiftState()
-                    + " shiftKeyState=" + mShiftKeyState
-                    + " symbolKeyState=" + mSymbolKeyState);
-        mShiftKeyState.onOtherKeyPressed();
-        mSymbolKeyState.onOtherKeyPressed();
-    }
-
-    private void toggleShiftInSymbol() {
-        if (isAlphabetMode())
-            return;
-        final LatinKeyboard keyboard;
-        if (mCurrentId.equals(mSymbolsId) || !mCurrentId.equals(mSymbolsShiftedId)) {
-            mCurrentId = mSymbolsShiftedId;
-            keyboard = getKeyboard(mCurrentId);
-            // Symbol shifted keyboard has an ALT key that has a caps lock style indicator. To
-            // enable the indicator, we need to call enableShiftLock() and setShiftLocked(true).
-            // Thus we can keep the ALT key's Key.on value true while LatinKey.onRelease() is
-            // called.
-            keyboard.setShiftLocked(true);
-        } else {
-            mCurrentId = mSymbolsId;
-            keyboard = getKeyboard(mCurrentId);
-            // Symbol keyboard has an ALT key that has a caps lock style indicator. To disable the
-            // indicator, we need to call enableShiftLock() and setShiftLocked(false).
-            keyboard.setShifted(false);
-        }
-        mInputView.setKeyboard(keyboard);
-    }
-
-    private void toggleKeyboardMode() {
-        loadKeyboardInternal(mMode, mImeOptions, mVoiceKeyEnabled, mVoiceButtonOnPrimary,
-                !mIsSymbols);
-        if (mIsSymbols) {
-            mSymbolsModeState = SYMBOLS_MODE_STATE_BEGIN;
-        } else {
-            mSymbolsModeState = SYMBOLS_MODE_STATE_NONE;
-        }
-    }
-
-    public boolean hasDistinctMultitouch() {
-        return mInputView != null && mInputView.hasDistinctMultitouch();
-    }
-
-    /**
-     * Updates state machine to figure out when to automatically switch back to alpha mode.
-     */
-    public void onKey(int key) {
-        // Switch back to alpha mode if user types one or more non-space/enter
-        // characters followed by a space/enter
-        switch (mSymbolsModeState) {
-        case SYMBOLS_MODE_STATE_BEGIN:
-            if (key != LatinIME.KEYCODE_SPACE && key != LatinIME.KEYCODE_ENTER && key > 0) {
-                mSymbolsModeState = SYMBOLS_MODE_STATE_SYMBOL;
-            }
-            break;
-        case SYMBOLS_MODE_STATE_SYMBOL:
-            if (key == LatinIME.KEYCODE_ENTER || key == LatinIME.KEYCODE_SPACE) {
-                changeKeyboardMode();
-            }
-            break;
-        }
-    }
-
-    public LatinKeyboardView getInputView() {
-        return mInputView;
-    }
-
-    public LatinKeyboardView onCreateInputView() {
-        createInputViewInternal(mLayoutId, true);
-        return mInputView;
-    }
-
-    private void createInputViewInternal(int newLayout, boolean forceReset) {
-        if (mLayoutId != newLayout || mInputView == null || forceReset) {
-            if (mInputView != null) {
-                mInputView.closing();
-            }
-            if (THEMES.length <= newLayout) {
-                newLayout = Integer.valueOf(DEFAULT_LAYOUT_ID);
-            }
-
-            LatinIMEUtil.GCUtils.getInstance().reset();
-            boolean tryGC = true;
-            for (int i = 0; i < LatinIMEUtil.GCUtils.GC_TRY_LOOP_MAX && tryGC; ++i) {
-                try {
-                    mInputView = (LatinKeyboardView) mInputMethodService.getLayoutInflater(
-                            ).inflate(THEMES[newLayout], null);
-                    tryGC = false;
-                } catch (OutOfMemoryError e) {
-                    Log.w(TAG, "load keyboard failed: " + e);
-                    tryGC = LatinIMEUtil.GCUtils.getInstance().tryGCOrWait(
-                            mLayoutId + "," + newLayout, e);
-                } catch (InflateException e) {
-                    Log.w(TAG, "load keyboard failed: " + e);
-                    tryGC = LatinIMEUtil.GCUtils.getInstance().tryGCOrWait(
-                            mLayoutId + "," + newLayout, e);
-                }
-            }
-            mInputView.setOnKeyboardActionListener(mInputMethodService);
-            mLayoutId = newLayout;
-        }
-    }
-
-    private void postSetInputView() {
-        mInputMethodService.mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                if (mInputView != null) {
-                    mInputMethodService.setInputView(mInputView);
-                }
-                mInputMethodService.updateInputViewShown();
-            }
-        });
-    }
-
-    @Override
-    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
-        if (PREF_KEYBOARD_LAYOUT.equals(key)) {
-            final int layoutId = Integer.valueOf(
-                    sharedPreferences.getString(key, DEFAULT_LAYOUT_ID));
-            createInputViewInternal(layoutId, false);
-            postSetInputView();
-        } else if (LatinIMESettings.PREF_SETTINGS_KEY.equals(key)) {
-            mHasSettingsKey = getSettingsKeyMode(sharedPreferences, mInputMethodService);
-            createInputViewInternal(mLayoutId, true);
-            postSetInputView();
-        }
-    }
-
-    private int getColorScheme() {
-        return (mInputView != null)
-                ? mInputView.getColorScheme() : KeyboardView.COLOR_SCHEME_WHITE;
-    }
-
-    public void onAutoCompletionStateChanged(boolean isAutoCompletion) {
-        if (isAutoCompletion != mIsAutoCompletionActive) {
-            LatinKeyboardView keyboardView = getInputView();
-            mIsAutoCompletionActive = isAutoCompletion;
-            keyboardView.invalidateKey(((LatinKeyboard) keyboardView.getKeyboard())
-                    .onAutoCompletionStateChanged(isAutoCompletion));
-        }
-    }
-
-    private static boolean getSettingsKeyMode(SharedPreferences prefs, Context context) {
-        Resources resources = context.getResources();
-        final boolean showSettingsKeyOption = resources.getBoolean(
-                R.bool.config_enable_show_settings_key_option);
-        if (showSettingsKeyOption) {
-            final String settingsKeyMode = prefs.getString(LatinIMESettings.PREF_SETTINGS_KEY,
-                    resources.getString(DEFAULT_SETTINGS_KEY_MODE));
-            // We show the settings key when 1) SETTINGS_KEY_MODE_ALWAYS_SHOW or
-            // 2) SETTINGS_KEY_MODE_AUTO and there are two or more enabled IMEs on the system
-            if (settingsKeyMode.equals(resources.getString(SETTINGS_KEY_MODE_ALWAYS_SHOW))
-                    || (settingsKeyMode.equals(resources.getString(SETTINGS_KEY_MODE_AUTO))
-                            && LatinIMEUtil.hasMultipleEnabledIMEsOrSubtypes(
-                                    ((InputMethodManager) context.getSystemService(
-                                            Context.INPUT_METHOD_SERVICE))))) {
-                return true;
-            }
-        }
-        return false;
-    }
-}