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package de.danoeh.antennapod.fragment;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import java.util.List;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.MainActivity;
import de.danoeh.antennapod.adapter.DownloadedEpisodesListAdapter;
import de.danoeh.antennapod.core.feed.EventDistributor;
import de.danoeh.antennapod.core.feed.FeedItem;
import de.danoeh.antennapod.core.storage.DBReader;
import de.danoeh.antennapod.core.storage.DBWriter;
import rx.Observable;
import rx.Subscription;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;
/**
* Displays all running downloads and provides a button to delete them
*/
public class CompletedDownloadsFragment extends ListFragment {
private static final String TAG = CompletedDownloadsFragment.class.getSimpleName();
private static final int EVENTS =
EventDistributor.DOWNLOAD_HANDLED |
EventDistributor.DOWNLOADLOG_UPDATE |
EventDistributor.UNREAD_ITEMS_UPDATE;
private List<FeedItem> items;
private DownloadedEpisodesListAdapter listAdapter;
private boolean viewCreated = false;
private boolean itemsLoaded = false;
private Subscription subscription;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
loadItems();
}
@Override
public void onStart() {
super.onStart();
EventDistributor.getInstance().register(contentUpdate);
}
@Override
public void onStop() {
super.onStop();
EventDistributor.getInstance().unregister(contentUpdate);
if(subscription != null) {
subscription.unsubscribe();
}
}
@Override
public void onDetach() {
super.onDetach();
if(subscription != null) {
subscription.unsubscribe();
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
listAdapter = null;
viewCreated = false;
if(subscription != null) {
subscription.unsubscribe();
}
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
if (viewCreated && itemsLoaded) {
onFragmentLoaded();
}
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// add padding
final ListView lv = getListView();
lv.setClipToPadding(false);
final int vertPadding = getResources().getDimensionPixelSize(R.dimen.list_vertical_padding);
lv.setPadding(0, vertPadding, 0, vertPadding);
viewCreated = true;
if (itemsLoaded && getActivity() != null) {
onFragmentLoaded();
}
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
FeedItem item = listAdapter.getItem(position - l.getHeaderViewsCount());
if (item != null) {
((MainActivity) getActivity()).loadChildFragment(ItemFragment.newInstance(item.getId()));
}
}
private void onFragmentLoaded() {
if (listAdapter == null) {
listAdapter = new DownloadedEpisodesListAdapter(getActivity(), itemAccess);
setListAdapter(listAdapter);
}
setListShown(true);
listAdapter.notifyDataSetChanged();
}
private DownloadedEpisodesListAdapter.ItemAccess itemAccess = new DownloadedEpisodesListAdapter.ItemAccess() {
@Override
public int getCount() {
return (items != null) ? items.size() : 0;
}
@Override
public FeedItem getItem(int position) {
if (items != null && 0 <= position && position < items.size()) {
return items.get(position);
} else {
return null;
}
}
@Override
public void onFeedItemSecondaryAction(FeedItem item) {
DBWriter.deleteFeedMediaOfItem(getActivity(), item.getMedia().getId());
}
};
private EventDistributor.EventListener contentUpdate = new EventDistributor.EventListener() {
@Override
public void update(EventDistributor eventDistributor, Integer arg) {
if ((arg & EVENTS) != 0) {
loadItems();
}
}
};
private void loadItems() {
if(subscription != null) {
subscription.unsubscribe();
}
if (!itemsLoaded && viewCreated) {
setListShown(false);
}
subscription = Observable.fromCallable(() -> DBReader.getDownloadedItems())
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(result -> {
if (result != null) {
items = result;
itemsLoaded = true;
if (viewCreated && getActivity() != null) {
onFragmentLoaded();
}
}
}, error -> {
Log.e(TAG, Log.getStackTraceString(error));
});
}
}
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