LatinIME/java/src/com/android/inputmethod/latin/KeyboardSwitcher.java

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/*
* 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 android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.InflateException;
import android.view.inputmethod.EditorInfo;
import java.lang.ref.SoftReference;
import java.util.Arrays;
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;
public static final int MODE_TEXT = 0;
public static final int MODE_URL = 1;
public static final int MODE_EMAIL = 2;
public static final int MODE_IM = 3;
public static final int MODE_WEB = 4;
public static final int MODE_PHONE = 5;
public static final int MODE_NUMBER = 6;
// 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 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 = 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) {
sInstance.mInputMethodService = ims;
sInstance.mSubtypeSwitcher = SubtypeSwitcher.getInstance();
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ims);
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 == MODE_PHONE ? R.xml.kbd_phone : R.xml.kbd_symbols,
colorScheme, hasSettingsKey, voiceKeyEnabled, hasVoiceKey, imeOptions, true);
mSymbolsShiftedId = new KeyboardId(locale, orientation, mode,
mode == MODE_PHONE ? R.xml.kbd_phone_symbols : R.xml.kbd_symbols_shift,
colorScheme, hasSettingsKey, voiceKeyEnabled, hasVoiceKey, imeOptions, true);
}
/**
* Represents the parameters necessary to construct a new LatinKeyboard,
* which also serve as a unique identifier for each keyboard type.
*/
public static class KeyboardId {
public final Locale mLocale;
public final int mOrientation;
public final int mMode;
public final int mXmlId;
public final int mColorScheme;
public final boolean mHasSettingsKey;
public final boolean mVoiceKeyEnabled;
public final boolean mHasVoiceKey;
public final int mImeOptions;
public final boolean mEnableShiftLock;
private final int mHashCode;
public KeyboardId(Locale locale, int orientation, int mode,
int xmlId, int colorScheme, boolean hasSettingsKey, boolean voiceKeyEnabled,
boolean hasVoiceKey, int imeOptions, boolean enableShiftLock) {
this.mLocale = locale;
this.mOrientation = orientation;
this.mMode = mode;
this.mXmlId = xmlId;
this.mColorScheme = colorScheme;
this.mHasSettingsKey = hasSettingsKey;
this.mVoiceKeyEnabled = voiceKeyEnabled;
this.mHasVoiceKey = hasVoiceKey;
// We are interested only in IME_MASK_ACTION enum value and IME_FLAG_NO_ENTER_ACTION.
this.mImeOptions = imeOptions
& (EditorInfo.IME_MASK_ACTION | EditorInfo.IME_FLAG_NO_ENTER_ACTION);
this.mEnableShiftLock = enableShiftLock;
this.mHashCode = Arrays.hashCode(new Object[] {
locale,
orientation,
mode,
xmlId,
colorScheme,
hasSettingsKey,
voiceKeyEnabled,
hasVoiceKey,
imeOptions,
enableShiftLock,
});
}
public int getXmlId() {
return mXmlId;
}
public boolean isAlphabetMode() {
return mXmlId == R.xml.kbd_qwerty;
}
@Override
public boolean equals(Object other) {
return other instanceof KeyboardId && equals((KeyboardId) other);
}
private boolean equals(KeyboardId other) {
return other.mLocale.equals(this.mLocale)
&& other.mOrientation == this.mOrientation
&& other.mMode == this.mMode
&& other.mXmlId == this.mXmlId
&& other.mColorScheme == this.mColorScheme
&& other.mHasSettingsKey == this.mHasSettingsKey
&& other.mVoiceKeyEnabled == this.mVoiceKeyEnabled
&& other.mHasVoiceKey == this.mHasVoiceKey
&& other.mImeOptions == this.mImeOptions
&& other.mEnableShiftLock == this.mEnableShiftLock;
}
@Override
public int hashCode() {
return mHashCode;
}
@Override
public String toString() {
return String.format("[%s %s %5s imeOptions=0x%08x xml=0x%08x %s%s%s%s%s]",
mLocale,
(mOrientation == 1 ? "port" : "land"),
modeName(mMode),
mImeOptions,
mXmlId,
colorSchemeName(mColorScheme),
(mHasSettingsKey ? " hasSettingsKey" : ""),
(mVoiceKeyEnabled ? " voiceKeyEnabled" : ""),
(mHasVoiceKey ? " hasVoiceKey" : ""),
(mEnableShiftLock ? " enableShiftLock" : ""));
}
private static String modeName(int mode) {
switch (mode) {
case MODE_TEXT: return "text";
case MODE_URL: return "url";
case MODE_EMAIL: return "email";
case MODE_IM: return "im";
case MODE_WEB: return "web";
case MODE_PHONE: return "phone";
case MODE_NUMBER: return "number";
}
return null;
}
private static String colorSchemeName(int colorScheme) {
switch (colorScheme) {
case BaseKeyboardView.COLOR_SCHEME_WHITE: return "white";
case BaseKeyboardView.COLOR_SCHEME_BLACK: return "black";
}
return null;
}
}
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(
PreferenceManager.getDefaultSharedPreferences(mInputMethodService),
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 Resources res = mInputMethodService.getResources();
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 == MODE_PHONE) {
xmlId = R.xml.kbd_phone_symbols;
} else if (mode == 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 == MODE_PHONE) {
xmlId = R.xml.kbd_phone;
enableShiftLock = false;
} else if (mode == 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 void loadKeyboardView() {
loadKeyboardViewInternal(mLayoutId, true);
}
private void loadKeyboardViewInternal(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) {
tryGC = LatinIMEUtil.GCUtils.getInstance().tryGCOrWait(
mLayoutId + "," + newLayout, e);
} catch (InflateException e) {
tryGC = LatinIMEUtil.GCUtils.getInstance().tryGCOrWait(
mLayoutId + "," + newLayout, e);
}
}
mInputView.setOnKeyboardActionListener(mInputMethodService);
mLayoutId = newLayout;
}
mInputMethodService.mHandler.post(new Runnable() {
public void run() {
if (mInputView != null) {
mInputMethodService.setInputView(mInputView);
}
mInputMethodService.updateInputViewShown();
}});
}
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
if (PREF_KEYBOARD_LAYOUT.equals(key)) {
final int layoutId = Integer.valueOf(
sharedPreferences.getString(key, DEFAULT_LAYOUT_ID));
loadKeyboardViewInternal(layoutId, false);
} else if (LatinIMESettings.PREF_SETTINGS_KEY.equals(key)) {
mHasSettingsKey = getSettingsKeyMode(sharedPreferences, mInputMethodService);
loadKeyboardViewInternal(mLayoutId, true);
}
}
private int getColorScheme() {
return (mInputView != null)
? mInputView.getColorScheme() : BaseKeyboardView.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.hasMultipleEnabledIMEs(context))) {
return true;
}
}
return false;
}
}