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package de.danoeh.antennapod.fragment;
import android.app.Activity;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.View;
import de.danoeh.antennapod.adapter.ActionButtonCallback;
import de.danoeh.antennapod.adapter.InternalFeedItemlistAdapter;
import de.danoeh.antennapod.feed.EventDistributor;
import de.danoeh.antennapod.feed.FeedItem;
import de.danoeh.antennapod.storage.DBReader;
import de.danoeh.antennapod.util.QueueAccess;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
public class PlaybackHistoryFragment extends ListFragment {
private static final String TAG = "PlaybackHistoryFragment";
private List<FeedItem> playbackHistory;
private QueueAccess queue;
private InternalFeedItemlistAdapter adapter;
private boolean itemsLoaded = false;
private boolean viewsCreated = false;
private AtomicReference<Activity> activity = new AtomicReference<Activity>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
startItemLoader();
}
@Override
public void onStart() {
super.onStart();
EventDistributor.getInstance().register(contentUpdate);
}
@Override
public void onStop() {
super.onStop();
EventDistributor.getInstance().unregister(contentUpdate);
stopItemLoader();
}
@Override
public void onDetach() {
super.onDetach();
stopItemLoader();
adapter = null;
viewsCreated = false;
activity.set(null);
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
this.activity.set(activity);
if (viewsCreated && itemsLoaded) {
onFragmentLoaded();
}
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
viewsCreated = true;
if (itemsLoaded) {
onFragmentLoaded();
}
}
private EventDistributor.EventListener contentUpdate = new EventDistributor.EventListener() {
@Override
public void update(EventDistributor eventDistributor, Integer arg) {
if ((arg & EventDistributor.PLAYBACK_HISTORY_UPDATE) != 0) {
startItemLoader();
}
}
};
private void onFragmentLoaded() {
if (adapter == null) {
adapter = new InternalFeedItemlistAdapter(getActivity(), itemAccess, actionButtonCallback, true);
setListAdapter(adapter);
}
setListShown(true);
adapter.notifyDataSetChanged();
}
private InternalFeedItemlistAdapter.ItemAccess itemAccess = new InternalFeedItemlistAdapter.ItemAccess() {
@Override
public boolean isInQueue(FeedItem item) {
return (queue != null) ? queue.contains(item.getId()) : false;
}
@Override
public int getCount() {
return (playbackHistory != null) ? playbackHistory.size() : 0;
}
@Override
public FeedItem getItem(int position) {
return (playbackHistory != null) ? playbackHistory.get(position) : null;
}
};
private ActionButtonCallback actionButtonCallback = new ActionButtonCallback() {
@Override
public void onActionButtonPressed(FeedItem item) {
}
};
private ItemLoader itemLoader;
private void startItemLoader() {
if (itemLoader != null) {
itemLoader.cancel(true);
}
itemLoader = new ItemLoader();
itemLoader.execute();
}
private void stopItemLoader() {
if (itemLoader != null) {
itemLoader.cancel(true);
}
}
private class ItemLoader extends AsyncTask<Void, Void, Object[]> {
@Override
protected Object[] doInBackground(Void... params) {
Context context = activity.get();
if (context != null) {
List<FeedItem> ph = DBReader.getPlaybackHistory(context);
DBReader.loadFeedDataOfFeedItemlist(context, ph);
return new Object[]{ph,
QueueAccess.IDListAccess(DBReader.getQueueIDList(context))};
} else {
return null;
}
}
@Override
protected void onPostExecute(Object[] res) {
super.onPostExecute(res);
if (res != null) {
playbackHistory = (List<FeedItem>) res[0];
queue = (QueueAccess) res[1];
itemsLoaded = true;
if (viewsCreated) {
onFragmentLoaded();
}
}
}
}
}
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