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/*
* Copyright (C) 2016 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.dvr.ui.playback;
import android.media.tv.TvTrackInfo;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v17.leanback.app.GuidedStepFragment;
import android.support.v17.leanback.widget.GuidedAction;
import android.text.TextUtils;
import android.transition.Transition;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.android.tv.R;
import com.android.tv.util.TvSettings;
import java.util.List;
import java.util.Locale;
/**
* Fragment for DVR playback closed-caption/multi-audio settings.
*/
public class DvrPlaybackSideFragment extends GuidedStepFragment {
/**
* The tag for passing track infos to side fragments.
*/
public static final String TRACK_INFOS = "dvr_key_track_infos";
/**
* The tag for passing selected track's ID to side fragments.
*/
public static final String SELECTED_TRACK_ID = "dvr_key_selected_track_id";
private static final int ACTION_ID_NO_SUBTITLE = -1;
private static final int CHECK_SET_ID = 1;
private List<TvTrackInfo> mTrackInfos;
private String mSelectedTrackId;
private TvTrackInfo mSelectedTrack;
private int mTrackType;
private DvrPlaybackOverlayFragment mOverlayFragment;
@Override
public void onCreate(Bundle savedInstanceState) {
mTrackInfos = getArguments().getParcelableArrayList(TRACK_INFOS);
mTrackType = mTrackInfos.get(0).getType();
mSelectedTrackId = getArguments().getString(SELECTED_TRACK_ID);
mOverlayFragment = ((DvrPlaybackOverlayFragment) getFragmentManager()
.findFragmentById(R.id.dvr_playback_controls_fragment));
super.onCreate(savedInstanceState);
}
@Override
public View onCreateBackgroundView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View backgroundView = super.onCreateBackgroundView(inflater, container, savedInstanceState);
backgroundView.setBackgroundColor(getResources()
.getColor(R.color.lb_playback_controls_background_light));
return backgroundView;
}
@Override
public void onCreateActions(@NonNull List<GuidedAction> actions, Bundle savedInstanceState) {
if (mTrackType == TvTrackInfo.TYPE_SUBTITLE) {
actions.add(new GuidedAction.Builder(getActivity())
.id(ACTION_ID_NO_SUBTITLE)
.title(getString(R.string.closed_caption_option_item_off))
.checkSetId(CHECK_SET_ID)
.checked(mSelectedTrackId == null)
.build());
}
for (int i = 0; i < mTrackInfos.size(); i++) {
TvTrackInfo info = mTrackInfos.get(i);
boolean checked = TextUtils.equals(info.getId(), mSelectedTrackId);
GuidedAction action = new GuidedAction.Builder(getActivity())
.id(i)
.title(getTrackLabel(info, i))
.checkSetId(CHECK_SET_ID)
.checked(checked)
.build();
actions.add(action);
if (checked) {
mSelectedTrack = info;
}
}
}
@Override
public void onGuidedActionFocused(GuidedAction action) {
int actionId = (int) action.getId();
mOverlayFragment.selectTrack(mTrackType, actionId < 0 ? null : mTrackInfos.get(actionId));
}
@Override
public void onGuidedActionClicked(GuidedAction action) {
int actionId = (int) action.getId();
mSelectedTrack = actionId < 0 ? null : mTrackInfos.get(actionId);
TvSettings.setDvrPlaybackTrackSettings(getContext(), mTrackType, mSelectedTrack);
getFragmentManager().popBackStack();
}
@Override
public void onStart() {
super.onStart();
// Workaround: when overlay fragment is faded out, any focus will lost due to overlay
// fragment's implementation. So we disable overlay fragment's fading here to prevent
// losing focus while users are interacting with the side fragment.
mOverlayFragment.setFadingEnabled(false);
}
@Override
public void onStop() {
super.onStop();
// We disable fading of overlay fragment to prevent side fragment from losing focus,
// therefore we should resume it here.
mOverlayFragment.setFadingEnabled(true);
mOverlayFragment.selectTrack(mTrackType, mSelectedTrack);
}
private String getTrackLabel(TvTrackInfo track, int trackIndex) {
if (track.getLanguage() != null) {
return new Locale(track.getLanguage()).getDisplayName();
}
return track.getType() == TvTrackInfo.TYPE_SUBTITLE ?
getString(R.string.closed_caption_unknown_language, trackIndex + 1)
: getString(R.string.multi_audio_unknown_language);
}
@Override
protected void onProvideFragmentTransitions() {
super.onProvideFragmentTransitions();
// Excludes the background scrim from transition to prevent the blinking caused by
// hiding the overlay fragment and sliding in the side fragment at the same time.
Transition t = getEnterTransition();
if (t != null) {
t.excludeTarget(R.id.guidedstep_background, true);
}
}
}
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