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/*
* 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.ui.sidepanel;
import android.media.tv.TvTrackInfo;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.android.tv.R;
import com.android.tv.util.CaptionSettings;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
public class ClosedCaptionFragment extends SideFragment {
private static final String TRACKER_LABEL ="closed caption" ;
private boolean mResetClosedCaption;
private int mClosedCaptionOption;
private String mClosedCaptionLanguage;
private String mClosedCaptionTrackId;
private ClosedCaptionOptionItem mSelectedItem;
public ClosedCaptionFragment() {
super(KeyEvent.KEYCODE_CAPTIONS, KeyEvent.KEYCODE_S);
}
@Override
protected String getTitle() {
return getString(R.string.side_panel_title_closed_caption);
}
@Override
public String getTrackerLabel() {
return TRACKER_LABEL;
}
@Override
protected List<Item> getItemList() {
CaptionSettings captionSettings = getMainActivity().getCaptionSettings();
mResetClosedCaption = true;
mClosedCaptionOption = captionSettings.getEnableOption();
mClosedCaptionLanguage = captionSettings.getLanguage();
mClosedCaptionTrackId = captionSettings.getTrackId();
List<Item> items = new ArrayList<>();
mSelectedItem = null;
List<TvTrackInfo> tracks = getMainActivity().getTracks(TvTrackInfo.TYPE_SUBTITLE);
if (tracks != null && !tracks.isEmpty()) {
String selectedTrackId = captionSettings.isEnabled() ?
getMainActivity().getSelectedTrack(TvTrackInfo.TYPE_SUBTITLE) : null;
ClosedCaptionOptionItem item = new ClosedCaptionOptionItem(null, null);
items.add(item);
if (selectedTrackId == null) {
mSelectedItem = item;
item.setChecked(true);
setSelectedPosition(0);
}
for (int i = 0; i < tracks.size(); i++) {
item = new ClosedCaptionOptionItem(tracks.get(i), i);
if (TextUtils.equals(selectedTrackId, tracks.get(i).getId())) {
mSelectedItem = item;
item.setChecked(true);
setSelectedPosition(i + 1);
}
items.add(item);
}
}
if (getMainActivity().hasCaptioningSettingsActivity()) {
items.add(new ActionItem(getString(R.string.closed_caption_system_settings),
getString(R.string.closed_caption_system_settings_description)) {
@Override
protected void onSelected() {
getMainActivity().startSystemCaptioningSettingsActivity();
}
@Override
protected void onFocused() {
super.onFocused();
if (mSelectedItem != null) {
getMainActivity().selectSubtitleTrack(
mSelectedItem.mOption, mSelectedItem.mTrackId);
}
}
});
}
return items;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return super.onCreateView(inflater, container, savedInstanceState);
}
@Override
public void onDestroyView() {
if (mResetClosedCaption) {
getMainActivity().selectSubtitleLanguage(mClosedCaptionOption, mClosedCaptionLanguage,
mClosedCaptionTrackId);
}
super.onDestroyView();
}
private String getLabel(TvTrackInfo track, Integer trackIndex) {
if (track == null) {
return getString(R.string.closed_caption_option_item_off);
} else if (track.getLanguage() != null) {
return new Locale(track.getLanguage()).getDisplayName();
}
return getString(R.string.closed_caption_unknown_language, trackIndex + 1);
}
private class ClosedCaptionOptionItem extends RadioButtonItem {
private final int mOption;
private final String mTrackId;
private ClosedCaptionOptionItem(TvTrackInfo track, Integer trackIndex) {
super(getLabel(track, trackIndex));
if (track == null) {
mOption = CaptionSettings.OPTION_OFF;
mTrackId = null;
} else {
mOption = CaptionSettings.OPTION_ON;
mTrackId = track.getId();
}
}
@Override
protected void onSelected() {
super.onSelected();
mSelectedItem = this;
getMainActivity().selectSubtitleTrack(mOption, mTrackId);
mResetClosedCaption = false;
closeFragment();
}
@Override
protected void onFocused() {
super.onFocused();
getMainActivity().selectSubtitleTrack(mOption, mTrackId);
}
}
}
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