| /* |
| * Copyright (C) 2015 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.tv.settings.system; |
| |
| import static com.android.tv.settings.util.InstrumentationUtils.logEntrySelected; |
| |
| import android.app.AlertDialog; |
| import android.app.tvsettings.TvSettingsEnums; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.speech.tts.TextToSpeech; |
| import android.util.Log; |
| import android.widget.Checkable; |
| import android.widget.RadioButton; |
| |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceViewHolder; |
| |
| import com.android.tv.settings.R; |
| |
| public class TtsEnginePreference extends Preference { |
| |
| private static final String TAG = "TtsEnginePreference"; |
| |
| /** |
| * The engine information for the engine this preference represents. |
| * Contains it's name, label etc. which are used for display. |
| */ |
| private final TextToSpeech.EngineInfo mEngineInfo; |
| |
| /** |
| * The shared radio button state, which button is checked etc. |
| */ |
| private final RadioButtonGroupState mSharedState; |
| |
| private RadioButton mRadioButton; |
| |
| public TtsEnginePreference(Context context, TextToSpeech.EngineInfo info, |
| RadioButtonGroupState state) { |
| super(context); |
| setWidgetLayoutResource(R.layout.radio_preference_widget); |
| |
| mSharedState = state; |
| mEngineInfo = info; |
| |
| setKey(mEngineInfo.name); |
| setTitle(mEngineInfo.label); |
| } |
| |
| @Override |
| public void onBindViewHolder(PreferenceViewHolder viewHolder) { |
| super.onBindViewHolder(viewHolder); |
| |
| final RadioButton rb = (RadioButton) viewHolder.findViewById(android.R.id.checkbox); |
| |
| boolean isChecked = getKey().equals(mSharedState.getCurrentKey()); |
| if (isChecked) { |
| mSharedState.setCurrentChecked(rb); |
| } |
| |
| rb.setChecked(isChecked); |
| |
| mRadioButton = rb; |
| } |
| |
| @Override |
| protected void onClick() { |
| super.onClick(); |
| onRadioButtonClicked(mRadioButton, !mRadioButton.isChecked()); |
| } |
| |
| private boolean shouldDisplayDataAlert() { |
| return !mEngineInfo.system; |
| } |
| |
| private void displayDataAlert( |
| DialogInterface.OnClickListener positiveOnClickListener, |
| DialogInterface.OnClickListener negativeOnClickListener) { |
| // TODO: don't use phone UI |
| Log.i(TAG, "Displaying data alert for :" + mEngineInfo.name); |
| |
| AlertDialog.Builder builder = new AlertDialog.Builder(getContext()); |
| builder.setTitle(android.R.string.dialog_alert_title) |
| .setMessage(getContext().getString( |
| R.string.tts_engine_security_warning, mEngineInfo.label)) |
| .setCancelable(true) |
| .setPositiveButton(android.R.string.ok, positiveOnClickListener) |
| .setNegativeButton(android.R.string.cancel, negativeOnClickListener); |
| |
| AlertDialog dialog = builder.create(); |
| dialog.show(); |
| } |
| |
| private void onRadioButtonClicked(final Checkable buttonView, |
| boolean isChecked) { |
| logEntrySelected(TvSettingsEnums.SYSTEM_A11Y_TTS_ENGINE_SELECT); |
| if (mSharedState.getCurrentChecked() == buttonView) { |
| return; |
| } |
| |
| if (isChecked) { |
| // Should we alert user? if that's true, delay making engine current one. |
| if (shouldDisplayDataAlert()) { |
| displayDataAlert( |
| new DialogInterface.OnClickListener() { |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| makeCurrentEngine(buttonView); |
| } |
| }, |
| new DialogInterface.OnClickListener() { |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| // Undo the click. |
| buttonView.setChecked(false); |
| } |
| }); |
| } else { |
| // Privileged engine, set it current |
| makeCurrentEngine(buttonView); |
| } |
| } |
| } |
| |
| private void makeCurrentEngine(Checkable current) { |
| if (mSharedState.getCurrentChecked() != null) { |
| mSharedState.getCurrentChecked().setChecked(false); |
| } |
| if (current != null) { |
| current.setChecked(true); |
| } |
| mSharedState.setCurrentChecked(current); |
| mSharedState.setCurrentKey(getKey()); |
| callChangeListener(mSharedState.getCurrentKey()); |
| } |
| |
| |
| /** |
| * Holds all state that is common to this group of radio buttons, such |
| * as the currently selected key and the currently checked compound button. |
| * (which corresponds to this key). |
| */ |
| public interface RadioButtonGroupState { |
| String getCurrentKey(); |
| Checkable getCurrentChecked(); |
| |
| void setCurrentKey(String key); |
| void setCurrentChecked(Checkable current); |
| } |
| |
| } |