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package de.danoeh.antennapod.fragment;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.fragment.app.ListFragment;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import java.util.ArrayList;
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.event.DownloadLogEvent;
import de.danoeh.antennapod.core.event.UnreadItemsUpdateEvent;
import de.danoeh.antennapod.core.feed.FeedItem;
import de.danoeh.antennapod.core.storage.DBReader;
import de.danoeh.antennapod.core.storage.DBWriter;
import de.danoeh.antennapod.core.util.FeedItemUtil;
import de.danoeh.antennapod.dialog.EpisodesApplyActionFragment;
import de.danoeh.antennapod.view.EmptyViewHandler;
import io.reactivex.Observable;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;
import io.reactivex.schedulers.Schedulers;
import org.greenrobot.eventbus.EventBus;
import org.greenrobot.eventbus.Subscribe;
import static de.danoeh.antennapod.dialog.EpisodesApplyActionFragment.ACTION_ADD_TO_QUEUE;
import static de.danoeh.antennapod.dialog.EpisodesApplyActionFragment.ACTION_DELETE;
/**
* 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 List<FeedItem> items = new ArrayList<>();
private DownloadedEpisodesListAdapter listAdapter;
private Disposable disposable;
@Override
public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setHasOptionsMenu(true);
addVerticalPadding();
addEmptyView();
listAdapter = new DownloadedEpisodesListAdapter((MainActivity) getActivity(), itemAccess);
setListAdapter(listAdapter);
setListShown(false);
EventBus.getDefault().register(this);
}
@Override
public void onDestroyView() {
EventBus.getDefault().unregister(this);
super.onDestroyView();
}
@Override
public void onStart() {
super.onStart();
loadItems();
}
@Override
public void onStop() {
super.onStop();
if (disposable != null) {
disposable.dispose();
}
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
position -= l.getHeaderViewsCount();
long[] ids = FeedItemUtil.getIds(items);
((MainActivity) requireActivity()).loadChildFragment(ItemPagerFragment.newInstance(ids, position));
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.downloads_completed, menu);
menu.findItem(R.id.episode_actions).setVisible(items.size() > 0);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == R.id.episode_actions) {
((MainActivity) requireActivity())
.loadChildFragment(EpisodesApplyActionFragment.newInstance(items, ACTION_DELETE | ACTION_ADD_TO_QUEUE));
return true;
}
return false;
}
private void addEmptyView() {
EmptyViewHandler emptyView = new EmptyViewHandler(getActivity());
emptyView.setIcon(R.attr.av_download);
emptyView.setTitle(R.string.no_comp_downloads_head_label);
emptyView.setMessage(R.string.no_comp_downloads_label);
emptyView.attachToListView(getListView());
}
private void addVerticalPadding() {
final ListView lv = getListView();
lv.setClipToPadding(false);
final int vertPadding = getResources().getDimensionPixelSize(R.dimen.list_vertical_padding);
lv.setPadding(0, vertPadding, 0, vertPadding);
}
private final DownloadedEpisodesListAdapter.ItemAccess itemAccess = new DownloadedEpisodesListAdapter.ItemAccess() {
@Override
public int getCount() {
return items.size();
}
@Override
public FeedItem getItem(int position) {
if (0 <= position && position < items.size()) {
return items.get(position);
} else {
return null;
}
}
@Override
public void onFeedItemSecondaryAction(FeedItem item) {
DBWriter.deleteFeedMediaOfItem(requireActivity(), item.getMedia().getId());
}
};
@Subscribe
public void onDownloadLogChanged(DownloadLogEvent event) {
loadItems();
}
@Subscribe
public void onUnreadItemsChanged(UnreadItemsUpdateEvent event) {
loadItems();
}
private void loadItems() {
if (disposable != null) {
disposable.dispose();
}
disposable = Observable.fromCallable(DBReader::getDownloadedItems)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(result -> {
items = result;
onItemsLoaded();
}, error -> Log.e(TAG, Log.getStackTraceString(error)));
}
private void onItemsLoaded() {
setListShown(true);
listAdapter.notifyDataSetChanged();
requireActivity().invalidateOptionsMenu();
}
}
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