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/*
* 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 java.util.ArrayList;
import java.util.Locale;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.backup.BackupManager;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.Preference.OnPreferenceClickListener;
import android.speech.RecognitionManager;
import android.text.AutoText;
import android.util.Log;
import com.android.inputmethod.voice.SettingsUtil;
import com.android.inputmethod.voice.VoiceInputLogger;
public class LatinIMESettings extends PreferenceActivity
implements SharedPreferences.OnSharedPreferenceChangeListener,
DialogInterface.OnDismissListener {
private static final String QUICK_FIXES_KEY = "quick_fixes";
private static final String SHOW_SUGGESTIONS_KEY = "show_suggestions";
private static final String PREDICTION_SETTINGS_KEY = "prediction_settings";
private static final String VOICE_SETTINGS_KEY = "voice_mode";
private static final String VOICE_ON_PRIMARY_KEY = "voice_on_main";
private static final String VOICE_SERVER_KEY = "voice_server_url";
private static final String TAG = "LatinIMESettings";
// Dialog ids
private static final int VOICE_INPUT_CONFIRM_DIALOG = 0;
private CheckBoxPreference mQuickFixes;
private CheckBoxPreference mShowSuggestions;
private ListPreference mVoicePreference;
private boolean mVoiceOn;
private VoiceInputLogger mLogger;
private boolean mOkClicked = false;
private String mVoiceModeOff;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.prefs);
mQuickFixes = (CheckBoxPreference) findPreference(QUICK_FIXES_KEY);
mShowSuggestions = (CheckBoxPreference) findPreference(SHOW_SUGGESTIONS_KEY);
mVoicePreference = (ListPreference) findPreference(VOICE_SETTINGS_KEY);
SharedPreferences prefs = getPreferenceManager().getSharedPreferences();
prefs.registerOnSharedPreferenceChangeListener(this);
mVoiceModeOff = getString(R.string.voice_mode_off);
mVoiceOn = !(prefs.getString(VOICE_SETTINGS_KEY, mVoiceModeOff).equals(mVoiceModeOff));
mLogger = VoiceInputLogger.getLogger(this);
}
@Override
protected void onResume() {
super.onResume();
int autoTextSize = AutoText.getSize(getListView());
if (autoTextSize < 1) {
((PreferenceGroup) findPreference(PREDICTION_SETTINGS_KEY))
.removePreference(mQuickFixes);
}
if (!LatinIME.VOICE_INSTALLED
|| !RecognitionManager.isRecognitionAvailable(this)) {
getPreferenceScreen().removePreference(mVoicePreference);
} else {
updateVoiceModeSummary();
}
}
@Override
protected void onDestroy() {
getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(
this);
super.onDestroy();
}
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
(new BackupManager(this)).dataChanged();
// If turning on voice input, show dialog
if (key.equals(VOICE_SETTINGS_KEY) && !mVoiceOn) {
if (! prefs.getString(VOICE_SETTINGS_KEY, mVoiceModeOff)
.equals(mVoiceModeOff)) {
showVoiceConfirmation();
}
}
mVoiceOn = !(prefs.getString(VOICE_SETTINGS_KEY, mVoiceModeOff).equals(mVoiceModeOff));
updateVoiceModeSummary();
}
private void showVoiceConfirmation() {
mOkClicked = false;
showDialog(VOICE_INPUT_CONFIRM_DIALOG);
}
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() {
public void onClick(DialogInterface dialog, int whichButton) {
if (whichButton == DialogInterface.BUTTON_NEGATIVE) {
mVoicePreference.setValue(mVoiceModeOff);
mLogger.settingsWarningDialogCancel();
} else if (whichButton == DialogInterface.BUTTON_POSITIVE) {
mOkClicked = true;
mLogger.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.
String supportedLocalesString = SettingsUtil.getSettingsString(
getContentResolver(),
SettingsUtil.LATIN_IME_VOICE_INPUT_SUPPORTED_LOCALES,
LatinIME.DEFAULT_VOICE_INPUT_SUPPORTED_LOCALES);
ArrayList<String> voiceInputSupportedLocales =
LatinIME.newArrayList(supportedLocalesString.split("\\s+"));
boolean localeSupported = voiceInputSupportedLocales.contains(
Locale.getDefault().toString());
if (localeSupported) {
String message = getString(R.string.voice_warning_may_not_understand) + "\n\n" +
getString(R.string.voice_hint_dialog_message);
builder.setMessage(message);
} else {
String message = getString(R.string.voice_warning_locale_not_supported) +
"\n\n" + getString(R.string.voice_warning_may_not_understand) + "\n\n" +
getString(R.string.voice_hint_dialog_message);
builder.setMessage(message);
}
AlertDialog dialog = builder.create();
dialog.setOnDismissListener(this);
mLogger.settingsWarningDialogShown();
return dialog;
default:
Log.e(TAG, "unknown dialog " + id);
return null;
}
}
public void onDismiss(DialogInterface dialog) {
mLogger.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);
if (isChecked) {
mLogger.voiceInputSettingEnabled();
} else {
mLogger.voiceInputSettingDisabled();
}
}
}
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