Implement the new TTS settings UI.
bug:5149036 Change-Id: I81a9786d20be3e9bf87550d6a0cc04191409600c
This commit is contained in:
Narayan Kamath
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src/com/android/settings/tts/TtsEngineSettingsFragment.java
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200
src/com/android/settings/tts/TtsEngineSettingsFragment.java
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.tts;
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import com.android.settings.R;
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import com.android.settings.SettingsPreferenceFragment;
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import android.content.ActivityNotFoundException;
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import android.content.Intent;
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import android.os.Bundle;
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import android.preference.ListPreference;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceChangeListener;
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import android.preference.Preference.OnPreferenceClickListener;
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import android.preference.PreferenceScreen;
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import android.speech.tts.TextToSpeech;
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import android.speech.tts.TtsEngines;
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import android.text.TextUtils;
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import android.util.Log;
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import java.util.ArrayList;
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import java.util.Locale;
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public class TtsEngineSettingsFragment extends SettingsPreferenceFragment implements
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OnPreferenceClickListener, OnPreferenceChangeListener {
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private static final String TAG = "TtsEngineSettings";
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private static final boolean DBG = false;
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private static final String KEY_ENGINE_LOCALE = "tts_default_lang";
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private static final String KEY_ENGINE_SETTINGS = "tts_engine_settings";
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private static final String KEY_INSTALL_DATA = "tts_install_data";
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private TtsEngines mEnginesHelper;
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private ListPreference mLocalePreference;
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private Preference mEngineSettingsPreference;
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private Preference mInstallVoicesPreference;
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private Intent mEngineSettingsIntent;
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public TtsEngineSettingsFragment() {
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super();
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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addPreferencesFromResource(R.xml.tts_engine_settings);
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mEnginesHelper = new TtsEngines(getActivity());
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final PreferenceScreen root = getPreferenceScreen();
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mLocalePreference = (ListPreference) root.findPreference(KEY_ENGINE_LOCALE);
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mLocalePreference.setOnPreferenceChangeListener(this);
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mEngineSettingsPreference = root.findPreference(KEY_ENGINE_SETTINGS);
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mEngineSettingsPreference.setOnPreferenceClickListener(this);
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mInstallVoicesPreference = root.findPreference(KEY_INSTALL_DATA);
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mInstallVoicesPreference.setOnPreferenceClickListener(this);
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root.setTitle(getEngineLabel());
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root.setKey(getEngineName());
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mEngineSettingsPreference.setTitle(getResources().getString(
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R.string.tts_engine_settings_title, getEngineLabel()));
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mEngineSettingsIntent = mEnginesHelper.getSettingsIntent(getEngineName());
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if (mEngineSettingsIntent == null) {
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mEngineSettingsPreference.setEnabled(false);
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}
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mInstallVoicesPreference.setEnabled(false);
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updateVoiceDetails();
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}
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private void updateVoiceDetails() {
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final Intent voiceDataDetails = getArguments().getParcelable(
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TtsEnginePreference.FRAGMENT_ARGS_VOICES);
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if (DBG) Log.d(TAG, "Parsing voice data details, data: " + voiceDataDetails.toUri(0));
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ArrayList<String> available = voiceDataDetails.getStringArrayListExtra(
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TextToSpeech.Engine.EXTRA_AVAILABLE_VOICES);
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ArrayList<String> unavailable = voiceDataDetails.getStringArrayListExtra(
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TextToSpeech.Engine.EXTRA_UNAVAILABLE_VOICES);
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if (available == null || unavailable == null){
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Log.e(TAG, "TTS data check failed (available == null).");
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return;
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}
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if (unavailable.size() > 0) {
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mInstallVoicesPreference.setEnabled(true);
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}
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if (available.size() > 0) {
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updateDefaultLocalePref(available);
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} else {
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final CharSequence[] empty = new CharSequence[0];
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mLocalePreference.setEntries(empty);
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mLocalePreference.setEntryValues(empty);
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}
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}
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private void updateDefaultLocalePref(ArrayList<String> availableLangs) {
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String currentLocale = mEnginesHelper.getLocalePrefForEngine(
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getEngineName());
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CharSequence[] entries = new CharSequence[availableLangs.size()];
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CharSequence[] entryValues = new CharSequence[availableLangs.size()];
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int selectedLanguageIndex = -1;
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for (int i = 0; i < availableLangs.size(); i++) {
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String[] langCountryVariant = availableLangs.get(i).split("-");
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Locale loc = null;
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if (langCountryVariant.length == 1){
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loc = new Locale(langCountryVariant[0]);
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} else if (langCountryVariant.length == 2){
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loc = new Locale(langCountryVariant[0], langCountryVariant[1]);
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} else if (langCountryVariant.length == 3){
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loc = new Locale(langCountryVariant[0], langCountryVariant[1],
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langCountryVariant[2]);
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}
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if (loc != null){
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entries[i] = loc.getDisplayName();
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entryValues[i] = availableLangs.get(i);
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if (entryValues[i].equals(currentLocale)) {
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selectedLanguageIndex = i;
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}
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}
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}
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mLocalePreference.setEntries(entries);
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mLocalePreference.setEntryValues(entryValues);
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if (selectedLanguageIndex > -1) {
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mLocalePreference.setValueIndex(selectedLanguageIndex);
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} else {
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mLocalePreference.setValueIndex(0);
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mEnginesHelper.updateLocalePrefForEngine(getEngineName(),
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availableLangs.get(0));
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}
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}
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/**
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* Ask the current default engine to launch the matching INSTALL_TTS_DATA activity
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* so the required TTS files are properly installed.
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*/
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private void installVoiceData() {
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if (TextUtils.isEmpty(getEngineName())) return;
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Intent intent = new Intent(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
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intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
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intent.setPackage(getEngineName());
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try {
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Log.v(TAG, "Installing voice data: " + intent.toUri(0));
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startActivity(intent);
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} catch (ActivityNotFoundException ex) {
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Log.e(TAG, "Failed to install TTS data, no acitivty found for " + intent + ")");
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}
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}
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@Override
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public boolean onPreferenceClick(Preference preference) {
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if (preference == mInstallVoicesPreference) {
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installVoiceData();
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return true;
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} else if (preference == mEngineSettingsPreference) {
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startActivity(mEngineSettingsIntent);
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return true;
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}
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return false;
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object newValue) {
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if (preference == mLocalePreference) {
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mEnginesHelper.updateLocalePrefForEngine(getEngineName(), (String) newValue);
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return true;
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}
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return false;
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}
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private String getEngineName() {
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return getArguments().getString(TtsEnginePreference.FRAGMENT_ARGS_NAME);
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}
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private String getEngineLabel() {
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return getArguments().getString(TtsEnginePreference.FRAGMENT_ARGS_LABEL);
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}
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}
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