1212 lines
45 KiB
Java
1212 lines
45 KiB
Java
/*
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* Copyright (C) 2008-2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.android.inputmethod.latin;
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import android.app.AlertDialog;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.SharedPreferences;
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import android.content.res.Configuration;
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import android.inputmethodservice.InputMethodService;
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import android.inputmethodservice.Keyboard;
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import android.inputmethodservice.KeyboardView;
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import android.media.AudioManager;
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import android.os.Debug;
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import android.os.Handler;
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import android.os.Message;
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import android.os.SystemClock;
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import android.os.Vibrator;
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import android.preference.PreferenceManager;
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import android.text.AutoText;
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import android.text.ClipboardManager;
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import android.text.TextUtils;
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import android.util.Log;
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import android.util.PrintWriterPrinter;
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import android.util.Printer;
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import android.view.KeyEvent;
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import android.view.View;
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import android.view.Window;
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import android.view.WindowManager;
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import android.view.inputmethod.CompletionInfo;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputConnection;
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import android.view.inputmethod.InputMethodManager;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Input method implementation for Qwerty'ish keyboard.
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*/
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public class LatinIME extends InputMethodService
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implements KeyboardView.OnKeyboardActionListener {
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static final boolean DEBUG = false;
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static final boolean TRACE = false;
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private static final String PREF_VIBRATE_ON = "vibrate_on";
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private static final String PREF_SOUND_ON = "sound_on";
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private static final String PREF_AUTO_CAP = "auto_cap";
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private static final String PREF_QUICK_FIXES = "quick_fixes";
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private static final String PREF_SHOW_SUGGESTIONS = "show_suggestions";
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private static final String PREF_AUTO_COMPLETE = "auto_complete";
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private static final int MSG_UPDATE_SUGGESTIONS = 0;
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private static final int MSG_START_TUTORIAL = 1;
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private static final int MSG_UPDATE_SHIFT_STATE = 2;
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// How many continuous deletes at which to start deleting at a higher speed.
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private static final int DELETE_ACCELERATE_AT = 20;
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// Key events coming any faster than this are long-presses.
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private static final int QUICK_PRESS = 200;
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// Weight added to a user picking a new word from the suggestion strip
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static final int FREQUENCY_FOR_PICKED = 3;
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// Weight added to a user typing a new word that doesn't get corrected (or is reverted)
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static final int FREQUENCY_FOR_TYPED = 1;
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// A word that is frequently typed and get's promoted to the user dictionary, uses this
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// frequency.
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static final int FREQUENCY_FOR_AUTO_ADD = 250;
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static final int KEYCODE_ENTER = '\n';
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static final int KEYCODE_SPACE = ' ';
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// Contextual menu positions
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private static final int POS_SETTINGS = 0;
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private static final int POS_METHOD = 1;
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private LatinKeyboardView mInputView;
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private CandidateViewContainer mCandidateViewContainer;
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private CandidateView mCandidateView;
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private Suggest mSuggest;
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private CompletionInfo[] mCompletions;
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private AlertDialog mOptionsDialog;
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KeyboardSwitcher mKeyboardSwitcher;
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private UserDictionary mUserDictionary;
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private ContactsDictionary mContactsDictionary;
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private ExpandableDictionary mAutoDictionary;
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private String mLocale;
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private StringBuilder mComposing = new StringBuilder();
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private WordComposer mWord = new WordComposer();
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private int mCommittedLength;
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private boolean mPredicting;
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private CharSequence mBestWord;
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private boolean mPredictionOn;
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private boolean mCompletionOn;
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private boolean mAutoSpace;
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private boolean mAutoCorrectOn;
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private boolean mCapsLock;
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private boolean mVibrateOn;
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private boolean mSoundOn;
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private boolean mAutoCap;
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private boolean mQuickFixes;
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private boolean mShowSuggestions;
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private int mCorrectionMode;
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private int mOrientation;
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// Indicates whether the suggestion strip is to be on in landscape
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private boolean mJustAccepted;
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private CharSequence mJustRevertedSeparator;
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private int mDeleteCount;
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private long mLastKeyTime;
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private Tutorial mTutorial;
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private Vibrator mVibrator;
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private long mVibrateDuration;
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private AudioManager mAudioManager;
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// Align sound effect volume on music volume
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private final float FX_VOLUME = -1.0f;
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private boolean mSilentMode;
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private String mWordSeparators;
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private String mSentenceSeparators;
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Handler mHandler = new Handler() {
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@Override
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public void handleMessage(Message msg) {
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switch (msg.what) {
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case MSG_UPDATE_SUGGESTIONS:
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updateSuggestions();
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break;
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case MSG_START_TUTORIAL:
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if (mTutorial == null) {
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if (mInputView.isShown()) {
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mTutorial = new Tutorial(LatinIME.this, mInputView);
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mTutorial.start();
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} else {
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// Try again soon if the view is not yet showing
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sendMessageDelayed(obtainMessage(MSG_START_TUTORIAL), 100);
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}
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}
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break;
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case MSG_UPDATE_SHIFT_STATE:
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updateShiftKeyState(getCurrentInputEditorInfo());
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break;
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}
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}
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};
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@Override public void onCreate() {
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super.onCreate();
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//setStatusIcon(R.drawable.ime_qwerty);
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mKeyboardSwitcher = new KeyboardSwitcher(this);
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final Configuration conf = getResources().getConfiguration();
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initSuggest(conf.locale.toString());
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mOrientation = conf.orientation;
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mVibrateDuration = getResources().getInteger(R.integer.vibrate_duration_ms);
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// register to receive ringer mode changes for silent mode
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IntentFilter filter = new IntentFilter(AudioManager.RINGER_MODE_CHANGED_ACTION);
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registerReceiver(mReceiver, filter);
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}
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private void initSuggest(String locale) {
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mLocale = locale;
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mSuggest = new Suggest(this, R.raw.main);
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mSuggest.setCorrectionMode(mCorrectionMode);
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mUserDictionary = new UserDictionary(this);
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mContactsDictionary = new ContactsDictionary(this);
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mAutoDictionary = new AutoDictionary(this);
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mSuggest.setUserDictionary(mUserDictionary);
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mSuggest.setContactsDictionary(mContactsDictionary);
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mSuggest.setAutoDictionary(mAutoDictionary);
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mWordSeparators = getResources().getString(R.string.word_separators);
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mSentenceSeparators = getResources().getString(R.string.sentence_separators);
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}
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@Override public void onDestroy() {
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mUserDictionary.close();
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mContactsDictionary.close();
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unregisterReceiver(mReceiver);
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super.onDestroy();
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}
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@Override
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public void onConfigurationChanged(Configuration conf) {
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if (!TextUtils.equals(conf.locale.toString(), mLocale)) {
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initSuggest(conf.locale.toString());
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}
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// If orientation changed while predicting, commit the change
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if (conf.orientation != mOrientation) {
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commitTyped(getCurrentInputConnection());
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mOrientation = conf.orientation;
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}
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if (mKeyboardSwitcher == null) {
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mKeyboardSwitcher = new KeyboardSwitcher(this);
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}
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mKeyboardSwitcher.makeKeyboards(true);
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super.onConfigurationChanged(conf);
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}
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@Override
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public View onCreateInputView() {
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mInputView = (LatinKeyboardView) getLayoutInflater().inflate(
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R.layout.input, null);
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mKeyboardSwitcher.setInputView(mInputView);
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mKeyboardSwitcher.makeKeyboards(true);
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mInputView.setOnKeyboardActionListener(this);
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT, 0);
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return mInputView;
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}
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@Override
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public View onCreateCandidatesView() {
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mKeyboardSwitcher.makeKeyboards(true);
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mCandidateViewContainer = (CandidateViewContainer) getLayoutInflater().inflate(
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R.layout.candidates, null);
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mCandidateViewContainer.initViews();
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mCandidateView = (CandidateView) mCandidateViewContainer.findViewById(R.id.candidates);
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mCandidateView.setService(this);
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setCandidatesViewShown(true);
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return mCandidateViewContainer;
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}
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@Override
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public void onStartInputView(EditorInfo attribute, boolean restarting) {
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// In landscape mode, this method gets called without the input view being created.
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if (mInputView == null) {
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return;
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}
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mKeyboardSwitcher.makeKeyboards(false);
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TextEntryState.newSession(this);
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boolean disableAutoCorrect = false;
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mPredictionOn = false;
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mCompletionOn = false;
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mCompletions = null;
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mCapsLock = false;
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switch (attribute.inputType&EditorInfo.TYPE_MASK_CLASS) {
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case EditorInfo.TYPE_CLASS_NUMBER:
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case EditorInfo.TYPE_CLASS_DATETIME:
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_SYMBOLS,
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attribute.imeOptions);
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break;
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case EditorInfo.TYPE_CLASS_PHONE:
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_PHONE,
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attribute.imeOptions);
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break;
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case EditorInfo.TYPE_CLASS_TEXT:
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT,
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attribute.imeOptions);
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//startPrediction();
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mPredictionOn = true;
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// Make sure that passwords are not displayed in candidate view
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int variation = attribute.inputType & EditorInfo.TYPE_MASK_VARIATION;
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if (variation == EditorInfo.TYPE_TEXT_VARIATION_PASSWORD ||
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variation == EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD ) {
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mPredictionOn = false;
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}
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if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
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|| variation == EditorInfo.TYPE_TEXT_VARIATION_PERSON_NAME) {
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mAutoSpace = false;
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} else {
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mAutoSpace = true;
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}
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if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS) {
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mPredictionOn = false;
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_EMAIL,
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attribute.imeOptions);
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} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_URI) {
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mPredictionOn = false;
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_URL,
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attribute.imeOptions);
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} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE) {
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_IM,
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attribute.imeOptions);
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} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_FILTER) {
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mPredictionOn = false;
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} else if (variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT) {
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// If it's a browser edit field and auto correct is not ON explicitly, then
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// disable auto correction, but keep suggestions on.
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if ((attribute.inputType & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) == 0) {
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disableAutoCorrect = true;
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}
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}
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// If NO_SUGGESTIONS is set, don't do prediction.
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if ((attribute.inputType & EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS) != 0) {
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mPredictionOn = false;
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disableAutoCorrect = true;
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}
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// If it's not multiline and the autoCorrect flag is not set, then don't correct
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if ((attribute.inputType & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) == 0 &&
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(attribute.inputType & EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) == 0) {
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disableAutoCorrect = true;
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}
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if ((attribute.inputType&EditorInfo.TYPE_TEXT_FLAG_AUTO_COMPLETE) != 0) {
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mPredictionOn = false;
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mCompletionOn = true && isFullscreenMode();
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}
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updateShiftKeyState(attribute);
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break;
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default:
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mKeyboardSwitcher.setKeyboardMode(KeyboardSwitcher.MODE_TEXT,
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attribute.imeOptions);
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updateShiftKeyState(attribute);
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}
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mInputView.closing();
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mComposing.setLength(0);
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mPredicting = false;
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mDeleteCount = 0;
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setCandidatesViewShown(false);
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if (mCandidateView != null) mCandidateView.setSuggestions(null, false, false, false);
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loadSettings();
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// Override auto correct
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if (disableAutoCorrect) {
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mAutoCorrectOn = false;
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if (mCorrectionMode == Suggest.CORRECTION_FULL) {
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mCorrectionMode = Suggest.CORRECTION_BASIC;
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}
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}
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mInputView.setProximityCorrectionEnabled(true);
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if (mSuggest != null) {
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mSuggest.setCorrectionMode(mCorrectionMode);
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}
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mPredictionOn = mPredictionOn && mCorrectionMode > 0;
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checkTutorial(attribute.privateImeOptions);
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if (TRACE) Debug.startMethodTracing("/data/trace/latinime");
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}
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@Override
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public void onFinishInput() {
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super.onFinishInput();
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if (mInputView != null) {
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mInputView.closing();
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}
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}
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@Override
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public void onUpdateSelection(int oldSelStart, int oldSelEnd,
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int newSelStart, int newSelEnd,
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int candidatesStart, int candidatesEnd) {
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super.onUpdateSelection(oldSelStart, oldSelEnd, newSelStart, newSelEnd,
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candidatesStart, candidatesEnd);
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// If the current selection in the text view changes, we should
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// clear whatever candidate text we have.
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if (mComposing.length() > 0 && mPredicting && (newSelStart != candidatesEnd
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|| newSelEnd != candidatesEnd)) {
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mComposing.setLength(0);
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mPredicting = false;
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updateSuggestions();
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TextEntryState.reset();
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InputConnection ic = getCurrentInputConnection();
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if (ic != null) {
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ic.finishComposingText();
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}
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} else if (!mPredicting && !mJustAccepted
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&& TextEntryState.getState() == TextEntryState.STATE_ACCEPTED_DEFAULT) {
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TextEntryState.reset();
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}
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mJustAccepted = false;
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postUpdateShiftKeyState();
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}
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@Override
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public void hideWindow() {
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if (TRACE) Debug.stopMethodTracing();
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if (mOptionsDialog != null && mOptionsDialog.isShowing()) {
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mOptionsDialog.dismiss();
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mOptionsDialog = null;
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}
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if (mTutorial != null) {
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mTutorial.close();
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mTutorial = null;
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}
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super.hideWindow();
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TextEntryState.endSession();
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}
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@Override
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public void onDisplayCompletions(CompletionInfo[] completions) {
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if (false) {
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Log.i("foo", "Received completions:");
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for (int i=0; i<(completions != null ? completions.length : 0); i++) {
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Log.i("foo", " #" + i + ": " + completions[i]);
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}
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}
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if (mCompletionOn) {
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mCompletions = completions;
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if (completions == null) {
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mCandidateView.setSuggestions(null, false, false, false);
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return;
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}
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List<CharSequence> stringList = new ArrayList<CharSequence>();
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for (int i=0; i<(completions != null ? completions.length : 0); i++) {
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CompletionInfo ci = completions[i];
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if (ci != null) stringList.add(ci.getText());
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}
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//CharSequence typedWord = mWord.getTypedWord();
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mCandidateView.setSuggestions(stringList, true, true, true);
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mBestWord = null;
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setCandidatesViewShown(isCandidateStripVisible() || mCompletionOn);
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}
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}
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@Override
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public void setCandidatesViewShown(boolean shown) {
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// TODO: Remove this if we support candidates with hard keyboard
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if (onEvaluateInputViewShown()) {
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super.setCandidatesViewShown(shown);
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}
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}
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@Override
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public void onComputeInsets(InputMethodService.Insets outInsets) {
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super.onComputeInsets(outInsets);
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if (!isFullscreenMode()) {
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outInsets.contentTopInsets = outInsets.visibleTopInsets;
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}
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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switch (keyCode) {
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case KeyEvent.KEYCODE_BACK:
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if (event.getRepeatCount() == 0 && mInputView != null) {
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if (mInputView.handleBack()) {
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return true;
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} else if (mTutorial != null) {
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mTutorial.close();
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mTutorial = null;
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}
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}
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break;
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case KeyEvent.KEYCODE_DPAD_DOWN:
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case KeyEvent.KEYCODE_DPAD_UP:
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case KeyEvent.KEYCODE_DPAD_LEFT:
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case KeyEvent.KEYCODE_DPAD_RIGHT:
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// If tutorial is visible, don't allow dpad to work
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if (mTutorial != null) {
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return true;
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}
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break;
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}
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return super.onKeyDown(keyCode, event);
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}
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@Override
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public boolean onKeyUp(int keyCode, KeyEvent event) {
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switch (keyCode) {
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case KeyEvent.KEYCODE_DPAD_DOWN:
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case KeyEvent.KEYCODE_DPAD_UP:
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case KeyEvent.KEYCODE_DPAD_LEFT:
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case KeyEvent.KEYCODE_DPAD_RIGHT:
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// If tutorial is visible, don't allow dpad to work
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if (mTutorial != null) {
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return true;
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}
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// Enable shift key and DPAD to do selections
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if (mInputView != null && mInputView.isShown() && mInputView.isShifted()) {
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event = new KeyEvent(event.getDownTime(), event.getEventTime(),
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event.getAction(), event.getKeyCode(), event.getRepeatCount(),
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event.getDeviceId(), event.getScanCode(),
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KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON);
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InputConnection ic = getCurrentInputConnection();
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if (ic != null) ic.sendKeyEvent(event);
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return true;
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}
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break;
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}
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return super.onKeyUp(keyCode, event);
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|
}
|
|
|
|
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);
|
|
mAutoDictionary.addWord(mComposing.toString(), FREQUENCY_FOR_TYPED);
|
|
}
|
|
updateSuggestions();
|
|
}
|
|
}
|
|
|
|
private void postUpdateShiftKeyState() {
|
|
mHandler.removeMessages(MSG_UPDATE_SHIFT_STATE);
|
|
mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_UPDATE_SHIFT_STATE), 300);
|
|
}
|
|
|
|
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;
|
|
}
|
|
if (mKeyboardSwitcher.onKey(primaryCode)) {
|
|
changeKeyboardMode();
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
postUpdateShiftKeyState();
|
|
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()) {
|
|
// TODO: This doesn't work with ß, need to fix it in the next release.
|
|
if (keyCodes == null || keyCodes[0] < Character.MIN_CODE_POINT
|
|
|| keyCodes[0] > Character.MAX_CODE_POINT) {
|
|
return;
|
|
}
|
|
primaryCode = new String(keyCodes, 0, 1).toUpperCase().charAt(0);
|
|
}
|
|
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;
|
|
}
|
|
// Don't auto-correct words with multiple capital letter
|
|
correctionAvailable &= !mWord.isMostlyCaps();
|
|
|
|
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 = suggestion.toString().toUpperCase().charAt(0)
|
|
+ suggestion.subSequence(1, suggestion.length()).toString();
|
|
}
|
|
InputConnection ic = getCurrentInputConnection();
|
|
if (ic != null) {
|
|
ic.commitText(suggestion, 1);
|
|
}
|
|
// Add the word to the auto dictionary if it's not a known word
|
|
if (mAutoDictionary.isValidWord(suggestion) || !mSuggest.isValidWord(suggestion)) {
|
|
mAutoDictionary.addWord(suggestion.toString(), FREQUENCY_FOR_PICKED);
|
|
}
|
|
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 = (Vibrator) getSystemService(VIBRATOR_SERVICE);
|
|
}
|
|
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;
|
|
}
|
|
|
|
void promoteToUserDictionary(String word, int frequency) {
|
|
if (mUserDictionary.isValidWord(word)) return;
|
|
mUserDictionary.addWord(word, frequency);
|
|
}
|
|
|
|
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;
|
|
boolean autoComplete = sp.getBoolean(PREF_AUTO_COMPLETE,
|
|
getResources().getBoolean(R.bool.enable_autocorrect)) & mShowSuggestions;
|
|
mAutoCorrectOn = mSuggest != null && (autoComplete || mQuickFixes);
|
|
mCorrectionMode = autoComplete
|
|
? Suggest.CORRECTION_FULL
|
|
: (mQuickFixes ? Suggest.CORRECTION_BASIC : Suggest.CORRECTION_NONE);
|
|
}
|
|
|
|
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) getSystemService(INPUT_METHOD_SERVICE))
|
|
.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));
|
|
}
|
|
|
|
class AutoDictionary extends ExpandableDictionary {
|
|
// If the user touches a typed word 2 times or more, it will become valid.
|
|
private static final int VALIDITY_THRESHOLD = 2 * FREQUENCY_FOR_PICKED;
|
|
// If the user touches a typed word 5 times or more, it will be added to the user dict.
|
|
private static final int PROMOTION_THRESHOLD = 5 * FREQUENCY_FOR_PICKED;
|
|
|
|
public AutoDictionary(Context context) {
|
|
super(context);
|
|
}
|
|
|
|
@Override
|
|
public boolean isValidWord(CharSequence word) {
|
|
final int frequency = getWordFrequency(word);
|
|
return frequency > VALIDITY_THRESHOLD;
|
|
}
|
|
|
|
@Override
|
|
public void addWord(String word, int addFrequency) {
|
|
final int length = word.length();
|
|
// Don't add very short or very long words.
|
|
if (length < 2 || length > getMaxWordLength()) return;
|
|
super.addWord(word, addFrequency);
|
|
final int freq = getWordFrequency(word);
|
|
if (freq > PROMOTION_THRESHOLD) {
|
|
LatinIME.this.promoteToUserDictionary(word, FREQUENCY_FOR_AUTO_ADD);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|