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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;
import android.content.Context;
import android.media.tv.TvTrackInfo;
import android.support.annotation.IntDef;
import android.util.SparseArray;
import com.android.tv.data.DisplayMode;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Locale;
/**
* The TvOptionsManager is responsible for keeping track of current TV options such as closed
* captions and display mode. Can be also used to create MenuAction items to control such options.
*/
public class TvOptionsManager {
@Retention(RetentionPolicy.SOURCE)
@IntDef({OPTION_CLOSED_CAPTIONS, OPTION_DISPLAY_MODE, OPTION_SYSTEMWIDE_PIP, OPTION_MULTI_AUDIO,
OPTION_MORE_CHANNELS, OPTION_DEVELOPER, OPTION_SETTINGS})
public @interface OptionType {}
public static final int OPTION_CLOSED_CAPTIONS = 0;
public static final int OPTION_DISPLAY_MODE = 1;
public static final int OPTION_SYSTEMWIDE_PIP = 2;
public static final int OPTION_MULTI_AUDIO = 3;
public static final int OPTION_MORE_CHANNELS = 4;
public static final int OPTION_DEVELOPER = 5;
public static final int OPTION_SETTINGS = 6;
private final Context mContext;
private final SparseArray<OptionChangedListener> mOptionChangedListeners = new SparseArray<>();
private String mClosedCaptionsLanguage;
private int mDisplayMode;
private String mMultiAudio;
public TvOptionsManager(Context context) {
mContext = context;
}
/**
* Returns a suitable displayed string for the given option type under current settings.
* @param option the type of option, should be one of {@link OptionType}.
*/
public String getOptionString(@OptionType int option) {
switch (option) {
case OPTION_CLOSED_CAPTIONS:
if (mClosedCaptionsLanguage == null) {
return mContext.getString(R.string.closed_caption_option_item_off);
}
return new Locale(mClosedCaptionsLanguage).getDisplayName();
case OPTION_DISPLAY_MODE:
return ((MainActivity) mContext).getTvViewUiManager()
.isDisplayModeAvailable(mDisplayMode)
? DisplayMode.getLabel(mDisplayMode, mContext)
: DisplayMode.getLabel(DisplayMode.MODE_NORMAL, mContext);
case OPTION_MULTI_AUDIO:
return mMultiAudio;
}
return "";
}
/**
* Handles changing selection of closed caption.
*/
public void onClosedCaptionsChanged(TvTrackInfo track, int trackIndex) {
mClosedCaptionsLanguage = (track == null) ?
null : (track.getLanguage() != null) ? track.getLanguage()
: mContext.getString(R.string.closed_caption_unknown_language, trackIndex + 1);
notifyOptionChanged(OPTION_CLOSED_CAPTIONS);
}
/**
* Handles changing selection of display mode.
*/
public void onDisplayModeChanged(int displayMode) {
mDisplayMode = displayMode;
notifyOptionChanged(OPTION_DISPLAY_MODE);
}
/**
* Handles changing selection of multi-audio.
*/
public void onMultiAudioChanged(String multiAudio) {
mMultiAudio = multiAudio;
notifyOptionChanged(OPTION_MULTI_AUDIO);
}
private void notifyOptionChanged(@OptionType int option) {
OptionChangedListener listener = mOptionChangedListeners.get(option);
if (listener != null) {
listener.onOptionChanged(option, getOptionString(option));
}
}
/**
* Sets listeners to changes of the given option type.
*/
public void setOptionChangedListener(int option, OptionChangedListener listener) {
mOptionChangedListeners.put(option, listener);
}
/**
* An interface used to monitor option changes.
*/
public interface OptionChangedListener {
void onOptionChanged(@OptionType int optionType, String newString);
}
}
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