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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.menu;
import android.content.Context;
import com.android.tv.R;
import com.android.tv.data.ProgramDataManager;
import com.android.tv.recommendation.RecentChannelEvaluator;
import com.android.tv.recommendation.Recommender;
public class ChannelsRow extends ItemListRow {
public static final String ID = ChannelsRow.class.getName();
/**
* Minimum count for recent channels.
*/
public static final int MIN_COUNT_FOR_RECENT_CHANNELS = 5;
/**
* Maximum count for recent channels.
*/
public static final int MAX_COUNT_FOR_RECENT_CHANNELS = 10;
private Recommender mTvRecommendation;
private ChannelsRowAdapter mChannelsAdapter;
private ChannelsPosterPrefetcher mChannelsPosterPrefetcher;
public ChannelsRow(Context context, Menu menu, ProgramDataManager programDataManager) {
super(context, menu, R.string.menu_title_channels, R.dimen.card_layout_height, null);
mTvRecommendation = new Recommender(getContext(), new Recommender.Listener() {
@Override
public void onRecommenderReady() {
mChannelsAdapter.update();
mChannelsPosterPrefetcher.prefetch();
}
@Override
public void onRecommendationChanged() {
mChannelsAdapter.update();
mChannelsPosterPrefetcher.prefetch();
}
}, true);
mTvRecommendation.registerEvaluator(new RecentChannelEvaluator());
mChannelsAdapter = new ChannelsRowAdapter(context, mTvRecommendation,
MIN_COUNT_FOR_RECENT_CHANNELS, MAX_COUNT_FOR_RECENT_CHANNELS);
setAdapter(mChannelsAdapter);
mChannelsPosterPrefetcher = new ChannelsPosterPrefetcher(context, programDataManager,
mChannelsAdapter);
}
@Override
public void release() {
super.release();
if (mTvRecommendation != null) {
mTvRecommendation.release();
mTvRecommendation = null;
}
mChannelsPosterPrefetcher.cancel();
}
/**
* Handle the update event of the recent channel.
*/
@Override
public void onRecentChannelsChanged() {
mChannelsPosterPrefetcher.prefetch();
}
@Override
public String getId() {
return ID;
}
}
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