/*
* Copyright (C) 2008-2009 Google Inc.
*
* 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.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.inputmethodservice.InputMethodService;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.media.AudioManager;
import android.os.Debug;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.os.Vibrator;
import android.preference.PreferenceManager;
import android.text.AutoText;
import android.text.ClipboardManager;
import android.text.TextUtils;
import android.util.Log;
import android.util.PrintWriterPrinter;
import android.util.Printer;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
/**
* Input method implementation for Qwerty'ish keyboard.
*/
public class LatinIME extends InputMethodService
implements KeyboardView.OnKeyboardActionListener {
static final boolean DEBUG = false;
static final boolean TRACE = false;
private static final String PREF_VIBRATE_ON = "vibrate_on";
private static final String PREF_SOUND_ON = "sound_on";
private static final String PREF_AUTO_CAP = "auto_cap";
private static final String PREF_QUICK_FIXES = "quick_fixes";
private static final String PREF_SHOW_SUGGESTIONS = "show_suggestions";
private static final String PREF_AUTO_COMPLETE = "auto_complete";
private static final int MSG_UPDATE_SUGGESTIONS = 0;
private static final int MSG_START_TUTORIAL = 1;
// How many continuous deletes at which to start deleting at a higher speed.
private static final int DELETE_ACCELERATE_AT = 20;
// Key events coming any faster than this are long-presses.
private static final int QUICK_PRESS = 200;
private static final int KEYCODE_ENTER = 10;
private static final int KEYCODE_SPACE = ' ';
// Contextual menu positions
private static final int POS_SETTINGS = 0;
private static final int POS_METHOD = 1;
private LatinKeyboardView mInputView;
private CandidateViewContainer mCandidateViewContainer;
private CandidateView mCandidateView;
private Suggest mSuggest;
private CompletionInfo[] mCompletions;
private AlertDialog mOptionsDialog;
KeyboardSwitcher mKeyboardSwitcher;
private UserDictionary mUserDictionary;
private String mLocale;
private StringBuilder mComposing = new StringBuilder();
private WordComposer mWord = new WordComposer();
private int mCommittedLength;
private boolean mPredicting;
private CharSequence mBestWord;
private boolean mPredictionOn;
private boolean mCompletionOn;
private boolean mAutoSpace;
private boolean mAutoCorrectOn;
private boolean mCapsLock;
private boolean mVibrateOn;
private boolean mSoundOn;
private boolean mAutoCap;
private boolean mQuickFixes;
private boolean mShowSuggestions;
private boolean mAutoComplete;
private int mCorrectionMode;
// Indicates whether the suggestion strip is to be on in landscape
private boolean mJustAccepted;
private CharSequence mJustRevertedSeparator;
private int mDeleteCount;
private long mLastKeyTime;
private Tutorial mTutorial;
private Vibrator mVibrator;
private long mVibrateDuration;
private AudioManager mAudioManager;
private final float FX_VOLUME = 1.0f;
private boolean mSilentMode;
private String mWordSeparators;
private String mSentenceSeparators;
Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_UPDATE_SUGGESTIONS:
updateSuggestions();
break;
case MSG_START_TUTORIAL:
if (mTutorial == null) {
if (mInputView.isShown()) {
mTutorial = new Tutorial(LatinIME.this, mInputView);
mTutorial.start();
} else {
// Try again soon if the view is not yet showing
sendMessageDelayed(obtainMessage(MSG_START_TUTORIAL), 100);
}
}
break;
}
}
};
@Override public void onCreate() {
super.onCreate();
//setStatusIcon(R.drawable.ime_qwerty);
mKeyboardSwitcher = new KeyboardSwitcher(this);
initSuggest(getResources().getConfiguration().locale.toString());
mVibrateDuration = getResources().getInteger(R.integer.vibrate_duration_ms);
// register to receive ringer mode changes for silent mode
IntentFilter filter = new IntentFilter(AudioManager.RINGER_MODE_CHANGED_ACTION);
registerReceiver(mReceiver, filter);
}
private void initSuggest(String locale) {
mLocale = locale;
mSuggest = new Suggest(this, R.raw.main);
mSuggest.setCorrectionMode(mCorrectionMode);
mUserDictionary = new UserDictionary(this);
mSuggest.setUserDictionary(mUserDictionary);
mWordSeparators = getResources().getString(R.string.word_separators);
mSentenceSeparators = getResources().getString(R.string.sentence_separators);
}
@Override public void onDestroy() {
mUserDictionary.close();
unregisterReceiver(mReceiver);
super.onDestroy();
}
@Override
public void onConfigurationChanged(Configuration conf) {
if (!TextUtils.equals(conf.locale.toString(), mLocale)) {
initSuggest(conf.locale.toString());
}
super.onConfigurationChanged(conf);
}
@Override
public View onCreateInputView() {
mInputView = (LatinKeyboardView) getLayoutInflater().inflate(
R.layout.input, null);
mKeyboardSwitcher.setInputView(mInputView);
mKeyboardSwitcher.makeKeyboards();
mInputView.setOnKeyboardActionListener(this);
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT, 0);
return mInputView;
}
@Override
public View onCreateCandidatesView() {
mKeyboardSwitcher.makeKeyboards();
mCandidateViewContainer = (CandidateViewContainer) getLayoutInflater().inflate(
R.layout.candidates, null);
mCandidateViewContainer.initViews();
mCandidateView = (CandidateView) mCandidateViewContainer.findViewById(R.id.candidates);
mCandidateView.setService(this);
setCandidatesViewShown(true);
return mCandidateViewContainer;
}
@Override
public void onStartInputView(EditorInfo attribute, boolean restarting) {
// In landscape mode, this method gets called without the input view being created.
if (mInputView == null) {
return;
}
mKeyboardSwitcher.makeKeyboards();
TextEntryState.newSession(this);
mPredictionOn = false;
mCompletionOn = false;
mCompletions = null;
mCapsLock = false;
switch (attribute.inputType&EditorInfo.TYPE_MASK_CLASS) {
case EditorInfo.TYPE_CLASS_NUMBER:
case EditorInfo.TYPE_CLASS_DATETIME:
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT,
attribute.imeOptions);
mKeyboardSwitcher.toggleSymbols();
break;
case EditorInfo.TYPE_CLASS_PHONE:
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_PHONE,
attribute.imeOptions);
break;
case EditorInfo.TYPE_CLASS_TEXT:
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT,
attribute.imeOptions);
//startPrediction();
mPredictionOn = true;
// Make sure that passwords are not displayed in candidate view
int variation = attribute.inputType & EditorInfo.TYPE_MASK_VARIATION;
if (variation == EditorInfo.TYPE_TEXT_VARIATION_PASSWORD ||
variation == EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD ) {
mPredictionOn = false;
}
if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
|| variation == EditorInfo.TYPE_TEXT_VARIATION_PERSON_NAME) {
mAutoSpace = false;
} else {
mAutoSpace = true;
}
if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS) {
mPredictionOn = false;
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_EMAIL,
attribute.imeOptions);
} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_URI) {
mPredictionOn = false;
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_URL,
attribute.imeOptions);
} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE) {
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_IM,
attribute.imeOptions);
} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_FILTER) {
mPredictionOn = false;
}
if ((attribute.inputType&EditorInfo.TYPE_TEXT_FLAG_AUTO_COMPLETE) != 0) {
mPredictionOn = false;
mCompletionOn = true && isFullscreenMode();
}
updateShiftKeyState(attribute);
break;
default:
mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT,
attribute.imeOptions);
updateShiftKeyState(attribute);
}
mInputView.closing();
mComposing.setLength(0);
mPredicting = false;
mDeleteCount = 0;
setCandidatesViewShown(false);
if (mCandidateView != null) mCandidateView.setSuggestions(null, false, false, false);
loadSettings();
mInputView.setProximityCorrectionEnabled(true);
if (mSuggest != null) {
mSuggest.setCorrectionMode(mCorrectionMode);
}
mPredictionOn = mPredictionOn && mCorrectionMode > 0;
checkTutorial(attribute.privateImeOptions);
if (TRACE) Debug.startMethodTracing("latinime");
}
@Override
public void onFinishInput() {
super.onFinishInput();
if (mInputView != null) {
mInputView.closing();
}
}
@Override
public void onUpdateSelection(int oldSelStart, int oldSelEnd,
int newSelStart, int newSelEnd,
int candidatesStart, int candidatesEnd) {
super.onUpdateSelection(oldSelStart, oldSelEnd, newSelStart, newSelEnd,
candidatesStart, candidatesEnd);
// If the current selection in the text view changes, we should
// clear whatever candidate text we have.
if (mComposing.length() > 0 && mPredicting && (newSelStart != candidatesEnd
|| newSelEnd != candidatesEnd)) {
mComposing.setLength(0);
mPredicting = false;
updateSuggestions();
TextEntryState.reset();
InputConnection ic = getCurrentInputConnection();
if (ic != null) {
ic.finishComposingText();
}
} else if (!mPredicting && !mJustAccepted
&& TextEntryState.getState() == TextEntryState.STATE_ACCEPTED_DEFAULT) {
TextEntryState.reset();
}
mJustAccepted = false;
}
@Override
public void hideWindow() {
if (TRACE) Debug.stopMethodTracing();
if (mOptionsDialog != null && mOptionsDialog.isShowing()) {
mOptionsDialog.dismiss();
mOptionsDialog = null;
}
if (mTutorial != null) {
mTutorial.close();
mTutorial = null;
}
super.hideWindow();
TextEntryState.endSession();
}
@Override
public void onDisplayCompletions(CompletionInfo[] completions) {
if (false) {
Log.i("foo", "Received completions:");
for (int i=0; i<(completions != null ? completions.length : 0); i++) {
Log.i("foo", " #" + i + ": " + completions[i]);
}
}
if (mCompletionOn) {
mCompletions = completions;
if (completions == null) {
mCandidateView.setSuggestions(null, false, false, false);
return;
}
List<CharSequence> stringList = new ArrayList<CharSequence>();
for (int i=0; i<(completions != null ? completions.length : 0); i++) {
CompletionInfo ci = completions[i];
if (ci != null) stringList.add(ci.getText());
}
//CharSequence typedWord = mWord.getTypedWord();
mCandidateView.setSuggestions(stringList, true, true, true);
mBestWord = null;
setCandidatesViewShown(isCandidateStripVisible() || mCompletionOn);
}
}
@Override
public void setCandidatesViewShown(boolean shown) {
// TODO: Remove this if we support candidates with hard keyboard
if (onEvaluateInputViewShown()) {
super.setCandidatesViewShown(shown);
}
}
@Override
public void onComputeInsets(InputMethodService.Insets outInsets) {
super.onComputeInsets(outInsets);
if (!isFullscreenMode()) {
outInsets.contentTopInsets = outInsets.visibleTopInsets;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
if (event.getRepeatCount() == 0 && mInputView != null) {
if (mInputView.handleBack()) {
return true;
} else if (mTutorial != null) {
mTutorial.close();
mTutorial = null;
}
}
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
case KeyEvent.KEYCODE_DPAD_UP:
case KeyEvent.KEYCODE_DPAD_LEFT:
case KeyEvent.KEYCODE_DPAD_RIGHT:
// If tutorial is visible, don't allow dpad to work
if (mTutorial != null) {
return true;
}
break;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_DOWN:
case KeyEvent.KEYCODE_DPAD_UP:
case KeyEvent.KEYCODE_DPAD_LEFT:
case KeyEvent.KEYCODE_DPAD_RIGHT:
// If tutorial is visible, don't allow dpad to work
if (mTutorial != null) {
return true;
}
// Enable shift key and DPAD to do selections
if (mInputView != null && mInputView.isShown() && mInputView.isShifted()) {
event = new KeyEvent(event.getDownTime(), event.getEventTime(),
event.getAction(), event.getKeyCode(), event.getRepeatCount(),
event.getDeviceId(), event.getScanCode(),
KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON);
InputConnection ic = getCurrentInputConnection();
if (ic != null) ic.sendKeyEvent(event);
return true;
}
break;
}
return super.onKeyUp(keyCode, event);
}
private void commitTyped(InputConnection inputConnection) {
if (mPredicting) {
mPredicting = false;
if (mComposing.length() > 0) {
if (inputConnection != null) {
inputConnection.commitText(mComposing, 1);
}
mCommittedLength = mComposing.length();
TextEntryState.acceptedTyped(mComposing);
}
updateSuggestions();
}
}
public void updateShiftKeyState(EditorInfo attr) {
InputConnection ic = getCurrentInputConnection();
if (attr != null && mInputView != null && mKeyboardSwitcher.isAlphabetMode()
&& ic != null) {
int caps = 0;
EditorInfo ei = getCurrentInputEditorInfo();
if (mAutoCap && ei != null && ei.inputType != EditorInfo.TYPE_NULL) {
caps = ic.getCursorCapsMode(attr.inputType);
}
mInputView.setShifted(mCapsLock || caps != 0);
}
}
private void swapPunctuationAndSpace() {
final InputConnection ic = getCurrentInputConnection();
if (ic == null) return;
CharSequence lastTwo = ic.getTextBeforeCursor(2, 0);
if (lastTwo != null && lastTwo.length() == 2
&& lastTwo.charAt(0) == KEYCODE_SPACE && isSentenceSeparator(lastTwo.charAt(1))) {
ic.beginBatchEdit();
ic.deleteSurroundingText(2, 0);
ic.commitText(lastTwo.charAt(1) + " ", 1);
ic.endBatchEdit();
updateShiftKeyState(getCurrentInputEditorInfo());
}
}
private void doubleSpace() {
//if (!mAutoPunctuate) return;
if (mCorrectionMode == Suggest.CORRECTION_NONE) return;
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) == KEYCODE_SPACE && lastThree.charAt(2) == KEYCODE_SPACE) {
ic.beginBatchEdit();
ic.deleteSurroundingText(2, 0);
ic.commitText(". ", 1);
ic.endBatchEdit();
updateShiftKeyState(getCurrentInputEditorInfo());
}
}
public boolean addWordToDictionary(String word) {
mUserDictionary.addWord(word, 128);
return true;
}
private boolean isAlphabet(int code) {
if (Character.isLetter(code)) {
return true;
} else {
return false;
}
}
// Implementation of KeyboardViewListener
public void onKey(int primaryCode, int[] keyCodes) {
long when = SystemClock.uptimeMillis();
if (primaryCode != Keyboard.KEYCODE_DELETE ||
when > mLastKeyTime + QUICK_PRESS) {
mDeleteCount = 0;
}
mLastKeyTime = when;
switch (primaryCode) {
case Keyboard.KEYCODE_DELETE:
handleBackspace();
mDeleteCount++;
break;
case Keyboard.KEYCODE_SHIFT:
handleShift();
break;
case Keyboard.KEYCODE_CANCEL:
if (mOptionsDialog == null || !mOptionsDialog.isShowing()) {
handleClose();
}
break;
case LatinKeyboardView.KEYCODE_OPTIONS:
showOptionsMenu();
break;
case LatinKeyboardView.KEYCODE_SHIFT_LONGPRESS:
if (mCapsLock) {
handleShift();
} else {
toggleCapsLock();
}
break;
case Keyboard.KEYCODE_MODE_CHANGE:
changeKeyboardMode();
break;
default:
if (isWordSeparator(primaryCode)) {
handleSeparator(primaryCode);
} else {
handleCharacter(primaryCode, keyCodes);
}
// Cancel the just reverted state
mJustRevertedSeparator = null;
}
}
public void onText(CharSequence text) {
InputConnection ic = getCurrentInputConnection();
if (ic == null) return;
ic.beginBatchEdit();
if (mPredicting) {
commitTyped(ic);
}
ic.commitText(text, 1);
ic.endBatchEdit();
updateShiftKeyState(getCurrentInputEditorInfo());
mJustRevertedSeparator = null;
}
private void handleBackspace() {
boolean deleteChar = false;
InputConnection ic = getCurrentInputConnection();
if (ic == null) return;
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;
}
updateShiftKeyState(getCurrentInputEditorInfo());
TextEntryState.backspace();
if (TextEntryState.getState() == TextEntryState.STATE_UNDO_COMMIT) {
revertLastWord(deleteChar);
return;
} else if (deleteChar) {
sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
if (mDeleteCount > DELETE_ACCELERATE_AT) {
sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
}
}
mJustRevertedSeparator = null;
}
private void handleShift() {
Keyboard currentKeyboard = mInputView.getKeyboard();
if (mKeyboardSwitcher.isAlphabetMode()) {
// Alphabet keyboard
checkToggleCapsLock();
mInputView.setShifted(mCapsLock || !mInputView.isShifted());
} else {
mKeyboardSwitcher.toggleShift();
}
}
private void handleCharacter(int primaryCode, int[] keyCodes) {
if (isAlphabet(primaryCode) && isPredictionOn() && !isCursorTouchingWord()) {
if (!mPredicting) {
mPredicting = true;
mComposing.setLength(0);
mWord.reset();
}
}
if (mInputView.isShifted()) {
primaryCode = Character.toUpperCase(primaryCode);
}
if (mPredicting) {
if (mInputView.isShifted() && mComposing.length() == 0) {
mWord.setCapitalized(true);
}
mComposing.append((char) primaryCode);
mWord.add(primaryCode, keyCodes);
InputConnection ic = getCurrentInputConnection();
if (ic != null) {
ic.setComposingText(mComposing, 1);
}
postUpdateSuggestions();
} else {
sendKeyChar((char)primaryCode);
}
updateShiftKeyState(getCurrentInputEditorInfo());
measureCps();
TextEntryState.typedCharacter((char) primaryCode, isWordSeparator(primaryCode));
}
private void handleSeparator(int primaryCode) {
boolean pickedDefault = false;
// Handle separator
InputConnection ic = getCurrentInputConnection();
if (ic != null) {
ic.beginBatchEdit();
}
if (mPredicting) {
// In certain languages where single quote is a separator, it's better
// not to auto correct, but accept the typed word. For instance,
// in Italian dov' should not be expanded to dove' because the elision
// requires the last vowel to be removed.
if (mAutoCorrectOn && primaryCode != '\'' &&
(mJustRevertedSeparator == null
|| mJustRevertedSeparator.length() == 0
|| mJustRevertedSeparator.charAt(0) != primaryCode)) {
pickDefaultSuggestion();
pickedDefault = true;
} else {
commitTyped(ic);
}
}
sendKeyChar((char)primaryCode);
TextEntryState.typedCharacter((char) primaryCode, true);
if (TextEntryState.getState() == TextEntryState.STATE_PUNCTUATION_AFTER_ACCEPTED
&& primaryCode != KEYCODE_ENTER) {
swapPunctuationAndSpace();
} else if (isPredictionOn() && primaryCode == ' ') {
//else if (TextEntryState.STATE_SPACE_AFTER_ACCEPTED) {
doubleSpace();
}
if (pickedDefault && mBestWord != null) {
TextEntryState.acceptedDefault(mWord.getTypedWord(), mBestWord);
}
updateShiftKeyState(getCurrentInputEditorInfo());
if (ic != null) {
ic.endBatchEdit();
}
}
private void handleClose() {
commitTyped(getCurrentInputConnection());
requestHideSelf(0);
mInputView.closing();
TextEntryState.endSession();
}
private void checkToggleCapsLock() {
if (mInputView.getKeyboard().isShifted()) {
toggleCapsLock();
}
}
private void toggleCapsLock() {
mCapsLock = !mCapsLock;
if (mKeyboardSwitcher.isAlphabetMode()) {
((LatinKeyboard) mInputView.getKeyboard()).setShiftLocked(mCapsLock);
}
}
private void postUpdateSuggestions() {
mHandler.removeMessages(MSG_UPDATE_SUGGESTIONS);
mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_UPDATE_SUGGESTIONS), 100);
}
private boolean isPredictionOn() {
boolean predictionOn = mPredictionOn;
//if (isFullscreenMode()) predictionOn &= mPredictionLandscape;
return predictionOn;
}
private boolean isCandidateStripVisible() {
return isPredictionOn() && mShowSuggestions;
}
private void updateSuggestions() {
// Check if we have a suggestion engine attached.
if (mSuggest == null || !isPredictionOn()) {
return;
}
if (!mPredicting) {
mCandidateView.setSuggestions(null, false, false, false);
return;
}
List<CharSequence> stringList = mSuggest.getSuggestions(mInputView, mWord, false);
boolean correctionAvailable = mSuggest.hasMinimalCorrection();
//|| mCorrectionMode == mSuggest.CORRECTION_FULL;
CharSequence typedWord = mWord.getTypedWord();
// If we're in basic correct
boolean typedWordValid = mSuggest.isValidWord(typedWord);
if (mCorrectionMode == Suggest.CORRECTION_FULL) {
correctionAvailable |= typedWordValid;
}
mCandidateView.setSuggestions(stringList, false, typedWordValid, correctionAvailable);
if (stringList.size() > 0) {
if (correctionAvailable && !typedWordValid && stringList.size() > 1) {
mBestWord = stringList.get(1);
} else {
mBestWord = typedWord;
}
} else {
mBestWord = null;
}
setCandidatesViewShown(isCandidateStripVisible() || mCompletionOn);
}
private void pickDefaultSuggestion() {
// Complete any pending candidate query first
if (mHandler.hasMessages(MSG_UPDATE_SUGGESTIONS)) {
mHandler.removeMessages(MSG_UPDATE_SUGGESTIONS);
updateSuggestions();
}
if (mBestWord != null) {
TextEntryState.acceptedDefault(mWord.getTypedWord(), mBestWord);
mJustAccepted = true;
pickSuggestion(mBestWord);
}
}
public void pickSuggestionManually(int index, CharSequence suggestion) {
if (mCompletionOn && mCompletions != null && index >= 0
&& index < mCompletions.length) {
CompletionInfo ci = mCompletions[index];
InputConnection ic = getCurrentInputConnection();
if (ic != null) {
ic.commitCompletion(ci);
}
mCommittedLength = suggestion.length();
if (mCandidateView != null) {
mCandidateView.clear();
}
updateShiftKeyState(getCurrentInputEditorInfo());
return;
}
pickSuggestion(suggestion);
TextEntryState.acceptedSuggestion(mComposing.toString(), suggestion);
// Follow it with a space
if (mAutoSpace) {
sendSpace();
}
// Fool the state watcher so that a subsequent backspace will not do a revert
TextEntryState.typedCharacter((char) KEYCODE_SPACE, true);
}
private void pickSuggestion(CharSequence suggestion) {
if (mCapsLock) {
suggestion = suggestion.toString().toUpperCase();
} else if (preferCapitalization()
|| (mKeyboardSwitcher.isAlphabetMode() && mInputView.isShifted())) {
suggestion = Character.toUpperCase(suggestion.charAt(0))
+ suggestion.subSequence(1, suggestion.length()).toString();
}
InputConnection ic = getCurrentInputConnection();
if (ic != null) {
ic.commitText(suggestion, 1);
}
mPredicting = false;
mCommittedLength = suggestion.length();
if (mCandidateView != null) {
mCandidateView.setSuggestions(null, false, false, false);
}
updateShiftKeyState(getCurrentInputEditorInfo());
}
private boolean isCursorTouchingWord() {
InputConnection ic = getCurrentInputConnection();
if (ic == null) return false;
CharSequence toLeft = ic.getTextBeforeCursor(1, 0);
CharSequence toRight = ic.getTextAfterCursor(1, 0);
if (!TextUtils.isEmpty(toLeft)
&& !isWordSeparator(toLeft.charAt(0))) {
return true;
}
if (!TextUtils.isEmpty(toRight)
&& !isWordSeparator(toRight.charAt(0))) {
return true;
}
return false;
}
public void revertLastWord(boolean deleteChar) {
final int length = mComposing.length();
if (!mPredicting && length > 0) {
final InputConnection ic = getCurrentInputConnection();
mPredicting = true;
ic.beginBatchEdit();
mJustRevertedSeparator = ic.getTextBeforeCursor(1, 0);
if (deleteChar) ic.deleteSurroundingText(1, 0);
int toDelete = mCommittedLength;
CharSequence toTheLeft = ic.getTextBeforeCursor(mCommittedLength, 0);
if (toTheLeft != null && toTheLeft.length() > 0
&& isWordSeparator(toTheLeft.charAt(0))) {
toDelete--;
}
ic.deleteSurroundingText(toDelete, 0);
ic.setComposingText(mComposing, 1);
TextEntryState.backspace();
ic.endBatchEdit();
postUpdateSuggestions();
} else {
sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
mJustRevertedSeparator = null;
}
}
protected String getWordSeparators() {
return mWordSeparators;
}
public boolean isWordSeparator(int code) {
String separators = getWordSeparators();
return separators.contains(String.valueOf((char)code));
}
public boolean isSentenceSeparator(int code) {
return mSentenceSeparators.contains(String.valueOf((char)code));
}
private void sendSpace() {
sendKeyChar((char)KEYCODE_SPACE);
updateShiftKeyState(getCurrentInputEditorInfo());
//onKey(KEY_SPACE[0], KEY_SPACE);
}
public boolean preferCapitalization() {
return mWord.isCapitalized();
}
public void swipeRight() {
if (LatinKeyboardView.DEBUG_AUTO_PLAY) {
ClipboardManager cm = ((ClipboardManager)getSystemService(CLIPBOARD_SERVICE));
CharSequence text = cm.getText();
if (!TextUtils.isEmpty(text)) {
mInputView.startPlaying(text.toString());
}
}
}
public void swipeLeft() {
//handleBackspace();
}
public void swipeDown() {
//handleClose();
}
public void swipeUp() {
//launchSettings();
}
public void onPress(int primaryCode) {
vibrate();
playKeyClick(primaryCode);
}
public void onRelease(int primaryCode) {
//vibrate();
}
// receive ringer mode changes to detect silent mode
private BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
updateRingerMode();
}
};
// update flags for silent mode
private void updateRingerMode() {
if (mAudioManager == null) {
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
}
if (mAudioManager != null) {
mSilentMode = (mAudioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL);
}
}
private void playKeyClick(int primaryCode) {
// if mAudioManager is null, we don't have the ringer state yet
// mAudioManager will be set by updateRingerMode
if (mAudioManager == null) {
if (mInputView != null) {
updateRingerMode();
}
}
if (mSoundOn && !mSilentMode) {
// FIXME: Volume and enable should come from UI settings
// FIXME: These should be triggered after auto-repeat logic
int sound = AudioManager.FX_KEYPRESS_STANDARD;
switch (primaryCode) {
case Keyboard.KEYCODE_DELETE:
sound = AudioManager.FX_KEYPRESS_DELETE;
break;
case KEYCODE_ENTER:
sound = AudioManager.FX_KEYPRESS_RETURN;
break;
case KEYCODE_SPACE:
sound = AudioManager.FX_KEYPRESS_SPACEBAR;
break;
}
mAudioManager.playSoundEffect(sound, FX_VOLUME);
}
}
private void vibrate() {
if (!mVibrateOn) {
return;
}
if (mVibrator == null) {
mVibrator = new Vibrator();
}
mVibrator.vibrate(mVibrateDuration);
}
private void checkTutorial(String privateImeOptions) {
if (privateImeOptions == null) return;
if (privateImeOptions.equals("com.android.setupwizard:ShowTutorial")) {
if (mTutorial == null) startTutorial();
} else if (privateImeOptions.equals("com.android.setupwizard:HideTutorial")) {
if (mTutorial != null) {
if (mTutorial.close()) {
mTutorial = null;
}
}
}
}
private void startTutorial() {
mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_START_TUTORIAL), 500);
}
void tutorialDone() {
mTutorial = null;
}
private void launchSettings() {
handleClose();
Intent intent = new Intent();
intent.setClass(LatinIME.this, LatinIMESettings.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
private void loadSettings() {
// Get the settings preferences
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
mVibrateOn = sp.getBoolean(PREF_VIBRATE_ON, false);
mSoundOn = sp.getBoolean(PREF_SOUND_ON, false);
mAutoCap = sp.getBoolean(PREF_AUTO_CAP, true);
mQuickFixes = sp.getBoolean(PREF_QUICK_FIXES, true);
// If there is no auto text data, then quickfix is forced to "on", so that the other options
// will continue to work
if (AutoText.getSize(mInputView) < 1) mQuickFixes = true;
mShowSuggestions = sp.getBoolean(PREF_SHOW_SUGGESTIONS, true) & mQuickFixes;
mAutoComplete = sp.getBoolean(PREF_AUTO_COMPLETE,
getResources().getBoolean(R.bool.enable_autocorrect)) & mShowSuggestions;
mAutoCorrectOn = mSuggest != null && (mAutoComplete || mQuickFixes);
mCorrectionMode = mAutoComplete ? 2 : (mQuickFixes ? 1 : 0);
}
private void showOptionsMenu() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setCancelable(true);
builder.setIcon(R.drawable.ic_dialog_keyboard);
builder.setNegativeButton(android.R.string.cancel, null);
CharSequence itemSettings = getString(R.string.english_ime_settings);
CharSequence itemInputMethod = getString(com.android.internal.R.string.inputMethod);
builder.setItems(new CharSequence[] {
itemSettings, itemInputMethod},
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface di, int position) {
di.dismiss();
switch (position) {
case POS_SETTINGS:
launchSettings();
break;
case POS_METHOD:
InputMethodManager.getInstance(LatinIME.this).showInputMethodPicker();
break;
}
}
});
builder.setTitle(getResources().getString(R.string.english_ime_name));
mOptionsDialog = builder.create();
Window window = mOptionsDialog.getWindow();
WindowManager.LayoutParams lp = window.getAttributes();
lp.token = mInputView.getWindowToken();
lp.type = WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG;
window.setAttributes(lp);
window.addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
mOptionsDialog.show();
}
private void changeKeyboardMode() {
mKeyboardSwitcher.toggleSymbols();
if (mCapsLock && mKeyboardSwitcher.isAlphabetMode()) {
((LatinKeyboard) mInputView.getKeyboard()).setShiftLocked(mCapsLock);
}
updateShiftKeyState(getCurrentInputEditorInfo());
}
@Override protected void dump(FileDescriptor fd, PrintWriter fout, String[] args) {
super.dump(fd, fout, args);
final Printer p = new PrintWriterPrinter(fout);
p.println("LatinIME state :");
p.println(" Keyboard mode = " + mKeyboardSwitcher.getKeyboardMode());
p.println(" mCapsLock=" + mCapsLock);
p.println(" mComposing=" + mComposing.toString());
p.println(" mPredictionOn=" + mPredictionOn);
p.println(" mCorrectionMode=" + mCorrectionMode);
p.println(" mPredicting=" + mPredicting);
p.println(" mAutoCorrectOn=" + mAutoCorrectOn);
p.println(" mAutoSpace=" + mAutoSpace);
p.println(" mCompletionOn=" + mCompletionOn);
p.println(" TextEntryState.state=" + TextEntryState.getState());
p.println(" mSoundOn=" + mSoundOn);
p.println(" mVibrateOn=" + mVibrateOn);
}
// Characters per second measurement
private static final boolean PERF_DEBUG = false;
private long mLastCpsTime;
private static final int CPS_BUFFER_SIZE = 16;
private long[] mCpsIntervals = new long[CPS_BUFFER_SIZE];
private int mCpsIndex;
private void measureCps() {
if (!LatinIME.PERF_DEBUG) return;
long now = System.currentTimeMillis();
if (mLastCpsTime == 0) mLastCpsTime = now - 100; // Initial
mCpsIntervals[mCpsIndex] = now - mLastCpsTime;
mLastCpsTime = now;
mCpsIndex = (mCpsIndex + 1) % CPS_BUFFER_SIZE;
long total = 0;
for (int i = 0; i < CPS_BUFFER_SIZE; i++) total += mCpsIntervals[i];
System.out.println("CPS = " + ((CPS_BUFFER_SIZE * 1000f) / total));
}
}
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