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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.android.inputmethod.latin;
import com.android.inputmethod.voice.VoiceIMEConnector;
import com.android.inputmethod.voice.VoiceInputLogger;
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.os.Vibrator;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
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 LatinIMESettings extends PreferenceActivity
implements SharedPreferences.OnSharedPreferenceChangeListener,
DialogInterface.OnDismissListener {
private static final String QUICK_FIXES_KEY = "quick_fixes";
private static final String PREDICTION_SETTINGS_KEY = "prediction_settings";
private static final String VOICE_SETTINGS_KEY = "voice_mode";
private static final String PREF_AUTO_COMPLETION_THRESHOLD = "auto_completion_threshold";
private static final String PREF_BIGRAM_SUGGESTIONS = "bigram_suggestion";
/* package */ static final String PREF_SETTINGS_KEY = "settings_key";
/* package */ static final String PREF_VIBRATE_ON = "vibrate_on";
private static final String TAG = "LatinIMESettings";
// Dialog ids
private static final int VOICE_INPUT_CONFIRM_DIALOG = 0;
private CheckBoxPreference mQuickFixes;
private ListPreference mVoicePreference;
private ListPreference mSettingsKeyPreference;
private ListPreference mAutoCompletionThreshold;
private CheckBoxPreference mBigramSuggestion;
private boolean mVoiceOn;
private AlertDialog mDialog;
private VoiceInputLogger mLogger;
private boolean mOkClicked = false;
private String mVoiceModeOff;
private void ensureConsistencyOfAutoCompletionSettings() {
final String autoCompletionOff = getResources().getString(
R.string.auto_completion_threshold_mode_value_off);
final String currentSetting = mAutoCompletionThreshold.getValue();
mBigramSuggestion.setEnabled(!currentSetting.equals(autoCompletionOff));
}
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.prefs);
mQuickFixes = (CheckBoxPreference) findPreference(QUICK_FIXES_KEY);
mVoicePreference = (ListPreference) findPreference(VOICE_SETTINGS_KEY);
mSettingsKeyPreference = (ListPreference) findPreference(PREF_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);
mAutoCompletionThreshold = (ListPreference) findPreference(PREF_AUTO_COMPLETION_THRESHOLD);
mBigramSuggestion = (CheckBoxPreference) findPreference(PREF_BIGRAM_SUGGESTIONS);
ensureConsistencyOfAutoCompletionSettings();
final boolean showSettingsKeyOption = getResources().getBoolean(
R.bool.config_enable_show_settings_key_option);
if (!showSettingsKeyOption) {
getPreferenceScreen().removePreference(mSettingsKeyPreference);
}
final boolean showVoiceKeyOption = getResources().getBoolean(
R.bool.config_enable_show_voice_key_option);
if (!showVoiceKeyOption) {
getPreferenceScreen().removePreference(mVoicePreference);
}
Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
if (vibrator == null || !vibrator.hasVibrator()) {
getPreferenceScreen().removePreference(
getPreferenceScreen().findPreference(PREF_VIBRATE_ON));
}
}
@Override
protected void onResume() {
super.onResume();
int autoTextSize = AutoText.getSize(getListView());
if (autoTextSize < 1) {
((PreferenceGroup) findPreference(PREDICTION_SETTINGS_KEY))
.removePreference(mQuickFixes);
}
if (!VoiceIMEConnector.VOICE_INSTALLED
|| !SpeechRecognizer.isRecognitionAvailable(this)) {
getPreferenceScreen().removePreference(mVoicePreference);
} else {
updateVoiceModeSummary();
}
updateSettingsKeySummary();
}
@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(VOICE_SETTINGS_KEY) && !mVoiceOn) {
if (!prefs.getString(VOICE_SETTINGS_KEY, mVoiceModeOff)
.equals(mVoiceModeOff)) {
showVoiceConfirmation();
}
}
ensureConsistencyOfAutoCompletionSettings();
mVoiceOn = !(prefs.getString(VOICE_SETTINGS_KEY, mVoiceModeOff).equals(mVoiceModeOff));
updateVoiceModeSummary();
updateSettingsKeySummary();
}
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);
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.
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);
mLogger.settingsWarningDialogShown();
return dialog;
default:
Log.e(TAG, "unknown dialog " + id);
return null;
}
}
@Override
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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