LatinIME/java/src/com/android/inputmethod/latin/Settings.java
Jean Chalard b50591295d Add an option for using bigram prediction.
This change adds the option for bigram prediction under the option
for bigram suggestion. The "prediction" option depends on the
"suggestion" option.
This change also reorders a tad bit the settings screen. Namely, it
sticks both bigram options under a "bigram" category, and groups the
options that did not have a group under a "other options", or misc,
category.
Finally this change also renames the internal name of the "text
corrections" option category to "correction_category" instead of
"prediction_category" which was misleading.

Change-Id: I2d8787c8a391fd8202ed3a686c613494b7260a1e
2011-04-22 15:53:48 +09:00

353 lines
16 KiB
Java

/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.android.inputmethod.latin;
import com.android.inputmethod.compat.CompatUtils;
import com.android.inputmethod.compat.InputMethodManagerCompatWrapper;
import com.android.inputmethod.compat.InputMethodServiceCompatWrapper;
import com.android.inputmethod.deprecated.VoiceProxy;
import com.android.inputmethod.compat.VibratorCompatWrapper;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.backup.BackupManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.PreferenceScreen;
import android.speech.SpeechRecognizer;
import android.text.AutoText;
import android.text.TextUtils;
import android.text.method.LinkMovementMethod;
import android.util.Log;
import android.widget.TextView;
import java.util.Locale;
public class Settings extends PreferenceActivity
implements SharedPreferences.OnSharedPreferenceChangeListener,
DialogInterface.OnDismissListener, OnPreferenceClickListener {
private static final String TAG = "Settings";
public static final String PREF_GENERAL_SETTINGS_KEY = "general_settings";
public static final String PREF_VIBRATE_ON = "vibrate_on";
public static final String PREF_SOUND_ON = "sound_on";
public static final String PREF_POPUP_ON = "popup_on";
public static final String PREF_RECORRECTION_ENABLED = "recorrection_enabled";
public static final String PREF_AUTO_CAP = "auto_cap";
public static final String PREF_SETTINGS_KEY = "settings_key";
public static final String PREF_VOICE_SETTINGS_KEY = "voice_mode";
public static final String PREF_INPUT_LANGUAGE = "input_language";
public static final String PREF_SELECTED_LANGUAGES = "selected_languages";
public static final String PREF_SUBTYPES = "subtype_settings";
public static final String PREF_CORRECTION_SETTINGS_KEY = "correction_settings";
public static final String PREF_QUICK_FIXES = "quick_fixes";
public static final String PREF_SHOW_SUGGESTIONS_SETTING = "show_suggestions_setting";
public static final String PREF_AUTO_CORRECTION_THRESHOLD = "auto_correction_threshold";
public static final String PREF_DEBUG_SETTINGS = "debug_settings";
public static final String PREF_NGRAM_SETTINGS_KEY = "ngram_settings";
public static final String PREF_BIGRAM_SUGGESTIONS = "bigram_suggestion";
public static final String PREF_BIGRAM_PREDICTIONS = "bigram_prediction";
public static final String PREF_MISC_SETTINGS_KEY = "misc_settings";
public static final String PREF_USABILITY_STUDY_MODE = "usability_study_mode";
// Dialog ids
private static final int VOICE_INPUT_CONFIRM_DIALOG = 0;
private PreferenceScreen mInputLanguageSelection;
private CheckBoxPreference mQuickFixes;
private ListPreference mVoicePreference;
private ListPreference mSettingsKeyPreference;
private ListPreference mShowCorrectionSuggestionsPreference;
private ListPreference mAutoCorrectionThreshold;
// Suggestion: use bigrams to adjust scores of suggestions obtained from unigram dictionary
private CheckBoxPreference mBigramSuggestion;
// Prediction: use bigrams to predict the next word when there is no input for it yet
private CheckBoxPreference mBigramPrediction;
private Preference mDebugSettingsPreference;
private boolean mVoiceOn;
private AlertDialog mDialog;
private VoiceProxy.VoiceLoggerWrapper mVoiceLogger;
private boolean mOkClicked = false;
private String mVoiceModeOff;
private void ensureConsistencyOfAutoCorrectionSettings() {
final String autoCorrectionOff = getResources().getString(
R.string.auto_correction_threshold_mode_index_off);
final String currentSetting = mAutoCorrectionThreshold.getValue();
mBigramSuggestion.setEnabled(!currentSetting.equals(autoCorrectionOff));
mBigramPrediction.setEnabled(!currentSetting.equals(autoCorrectionOff));
}
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.prefs);
mInputLanguageSelection = (PreferenceScreen) findPreference(PREF_SUBTYPES);
mInputLanguageSelection.setOnPreferenceClickListener(this);
mQuickFixes = (CheckBoxPreference) findPreference(PREF_QUICK_FIXES);
mVoicePreference = (ListPreference) findPreference(PREF_VOICE_SETTINGS_KEY);
mSettingsKeyPreference = (ListPreference) findPreference(PREF_SETTINGS_KEY);
mShowCorrectionSuggestionsPreference =
(ListPreference) findPreference(PREF_SHOW_SUGGESTIONS_SETTING);
SharedPreferences prefs = getPreferenceManager().getSharedPreferences();
prefs.registerOnSharedPreferenceChangeListener(this);
mVoiceModeOff = getString(R.string.voice_mode_off);
mVoiceOn = !(prefs.getString(PREF_VOICE_SETTINGS_KEY, mVoiceModeOff)
.equals(mVoiceModeOff));
mVoiceLogger = VoiceProxy.VoiceLoggerWrapper.getInstance(this);
mAutoCorrectionThreshold = (ListPreference) findPreference(PREF_AUTO_CORRECTION_THRESHOLD);
mBigramSuggestion = (CheckBoxPreference) findPreference(PREF_BIGRAM_SUGGESTIONS);
mBigramPrediction = (CheckBoxPreference) findPreference(PREF_BIGRAM_PREDICTIONS);
mDebugSettingsPreference = findPreference(PREF_DEBUG_SETTINGS);
if (mDebugSettingsPreference != null) {
final Intent debugSettingsIntent = new Intent(Intent.ACTION_MAIN);
debugSettingsIntent.setClassName(getPackageName(), DebugSettings.class.getName());
mDebugSettingsPreference.setIntent(debugSettingsIntent);
}
ensureConsistencyOfAutoCorrectionSettings();
final PreferenceGroup generalSettings =
(PreferenceGroup) findPreference(PREF_GENERAL_SETTINGS_KEY);
final PreferenceGroup textCorrectionGroup =
(PreferenceGroup) findPreference(PREF_CORRECTION_SETTINGS_KEY);
final PreferenceGroup bigramGroup =
(PreferenceGroup) findPreference(PREF_NGRAM_SETTINGS_KEY);
final boolean showSettingsKeyOption = getResources().getBoolean(
R.bool.config_enable_show_settings_key_option);
if (!showSettingsKeyOption) {
generalSettings.removePreference(mSettingsKeyPreference);
}
final boolean showVoiceKeyOption = getResources().getBoolean(
R.bool.config_enable_show_voice_key_option);
if (!showVoiceKeyOption) {
generalSettings.removePreference(mVoicePreference);
}
if (!VibratorCompatWrapper.getInstance(this).hasVibrator()) {
generalSettings.removePreference(findPreference(PREF_VIBRATE_ON));
}
final boolean showSubtypeSettings = getResources().getBoolean(
R.bool.config_enable_show_subtype_settings);
if (InputMethodServiceCompatWrapper.CAN_HANDLE_ON_CURRENT_INPUT_METHOD_SUBTYPE_CHANGED
&& !showSubtypeSettings) {
generalSettings.removePreference(findPreference(PREF_SUBTYPES));
}
final boolean showPopupOption = getResources().getBoolean(
R.bool.config_enable_show_popup_on_keypress_option);
if (!showPopupOption) {
generalSettings.removePreference(findPreference(PREF_POPUP_ON));
}
final boolean showRecorrectionOption = getResources().getBoolean(
R.bool.config_enable_show_recorrection_option);
if (!showRecorrectionOption) {
generalSettings.removePreference(findPreference(PREF_RECORRECTION_ENABLED));
}
final boolean showQuickFixesOption = getResources().getBoolean(
R.bool.config_enable_quick_fixes_option);
if (!showQuickFixesOption) {
textCorrectionGroup.removePreference(findPreference(PREF_QUICK_FIXES));
}
final boolean showBigramSuggestionsOption = getResources().getBoolean(
R.bool.config_enable_bigram_suggestions_option);
if (!showBigramSuggestionsOption) {
textCorrectionGroup.removePreference(findPreference(PREF_BIGRAM_SUGGESTIONS));
textCorrectionGroup.removePreference(findPreference(PREF_BIGRAM_PREDICTIONS));
}
final boolean showUsabilityModeStudyOption = getResources().getBoolean(
R.bool.config_enable_usability_study_mode_option);
if (!showUsabilityModeStudyOption) {
getPreferenceScreen().removePreference(findPreference(PREF_USABILITY_STUDY_MODE));
}
}
@Override
protected void onResume() {
super.onResume();
int autoTextSize = AutoText.getSize(getListView());
if (autoTextSize < 1) {
((PreferenceGroup) findPreference(PREF_CORRECTION_SETTINGS_KEY))
.removePreference(mQuickFixes);
}
if (!VoiceProxy.VOICE_INSTALLED
|| !SpeechRecognizer.isRecognitionAvailable(this)) {
getPreferenceScreen().removePreference(mVoicePreference);
} else {
updateVoiceModeSummary();
}
updateSettingsKeySummary();
updateShowCorrectionSuggestionsSummary();
}
@Override
protected void onDestroy() {
getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(
this);
super.onDestroy();
}
@Override
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
(new BackupManager(this)).dataChanged();
// If turning on voice input, show dialog
if (key.equals(PREF_VOICE_SETTINGS_KEY) && !mVoiceOn) {
if (!prefs.getString(PREF_VOICE_SETTINGS_KEY, mVoiceModeOff)
.equals(mVoiceModeOff)) {
showVoiceConfirmation();
}
}
ensureConsistencyOfAutoCorrectionSettings();
mVoiceOn = !(prefs.getString(PREF_VOICE_SETTINGS_KEY, mVoiceModeOff)
.equals(mVoiceModeOff));
updateVoiceModeSummary();
updateSettingsKeySummary();
updateShowCorrectionSuggestionsSummary();
}
@Override
public boolean onPreferenceClick(Preference pref) {
if (pref == mInputLanguageSelection) {
startActivity(CompatUtils.getInputLanguageSelectionIntent(
Utils.getInputMethodId(InputMethodManagerCompatWrapper.getInstance(this),
getApplicationInfo().packageName), 0));
return true;
}
return false;
}
private void updateShowCorrectionSuggestionsSummary() {
mShowCorrectionSuggestionsPreference.setSummary(
getResources().getStringArray(R.array.prefs_suggestion_visibilities)
[mShowCorrectionSuggestionsPreference.findIndexOfValue(
mShowCorrectionSuggestionsPreference.getValue())]);
}
private void updateSettingsKeySummary() {
mSettingsKeyPreference.setSummary(
getResources().getStringArray(R.array.settings_key_modes)
[mSettingsKeyPreference.findIndexOfValue(mSettingsKeyPreference.getValue())]);
}
private void showVoiceConfirmation() {
mOkClicked = false;
showDialog(VOICE_INPUT_CONFIRM_DIALOG);
// Make URL in the dialog message clickable
if (mDialog != null) {
TextView textView = (TextView) mDialog.findViewById(android.R.id.message);
if (textView != null) {
textView.setMovementMethod(LinkMovementMethod.getInstance());
}
}
}
private void updateVoiceModeSummary() {
mVoicePreference.setSummary(
getResources().getStringArray(R.array.voice_input_modes_summary)
[mVoicePreference.findIndexOfValue(mVoicePreference.getValue())]);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case VOICE_INPUT_CONFIRM_DIALOG:
DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
if (whichButton == DialogInterface.BUTTON_NEGATIVE) {
mVoicePreference.setValue(mVoiceModeOff);
mVoiceLogger.settingsWarningDialogCancel();
} else if (whichButton == DialogInterface.BUTTON_POSITIVE) {
mOkClicked = true;
mVoiceLogger.settingsWarningDialogOk();
}
updateVoicePreference();
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(this)
.setTitle(R.string.voice_warning_title)
.setPositiveButton(android.R.string.ok, listener)
.setNegativeButton(android.R.string.cancel, listener);
// Get the current list of supported locales and check the current locale against
// that list, to decide whether to put a warning that voice input will not work in
// the current language as part of the pop-up confirmation dialog.
boolean localeSupported = SubtypeSwitcher.getInstance().isVoiceSupported(
Locale.getDefault().toString());
final CharSequence message;
if (localeSupported) {
message = TextUtils.concat(
getText(R.string.voice_warning_may_not_understand), "\n\n",
getText(R.string.voice_hint_dialog_message));
} else {
message = TextUtils.concat(
getText(R.string.voice_warning_locale_not_supported), "\n\n",
getText(R.string.voice_warning_may_not_understand), "\n\n",
getText(R.string.voice_hint_dialog_message));
}
builder.setMessage(message);
AlertDialog dialog = builder.create();
mDialog = dialog;
dialog.setOnDismissListener(this);
mVoiceLogger.settingsWarningDialogShown();
return dialog;
default:
Log.e(TAG, "unknown dialog " + id);
return null;
}
}
@Override
public void onDismiss(DialogInterface dialog) {
mVoiceLogger.settingsWarningDialogDismissed();
if (!mOkClicked) {
// This assumes that onPreferenceClick gets called first, and this if the user
// agreed after the warning, we set the mOkClicked value to true.
mVoicePreference.setValue(mVoiceModeOff);
}
}
private void updateVoicePreference() {
boolean isChecked = !mVoicePreference.getValue().equals(mVoiceModeOff);
mVoiceLogger.voiceInputSettingEnabled(isChecked);
}
}