diff options
Diffstat (limited to 'app/src/main/java/de/danoeh/antennapod/fragment/AllEpisodesFragment.java')
| -rw-r--r-- | app/src/main/java/de/danoeh/antennapod/fragment/AllEpisodesFragment.java | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/AllEpisodesFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/AllEpisodesFragment.java new file mode 100644 index 000000000..2eef7b635 --- /dev/null +++ b/app/src/main/java/de/danoeh/antennapod/fragment/AllEpisodesFragment.java @@ -0,0 +1,460 @@ +package de.danoeh.antennapod.fragment; + +import android.app.Activity; +import android.content.Context; +import android.content.DialogInterface; +import android.content.SharedPreferences; +import android.os.AsyncTask; +import android.os.Bundle; +import android.os.Handler; +import android.support.v4.app.Fragment; +import android.support.v7.widget.SearchView; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuInflater; +import android.view.MenuItem; +import android.view.View; +import android.view.ViewGroup; +import android.widget.AdapterView; +import android.widget.ProgressBar; +import android.widget.TextView; +import android.widget.Toast; + +import com.mobeta.android.dslv.DragSortListView; + +import java.util.List; +import java.util.concurrent.atomic.AtomicReference; + +import de.danoeh.antennapod.R; +import de.danoeh.antennapod.activity.MainActivity; +import de.danoeh.antennapod.adapter.DefaultActionButtonCallback; +import de.danoeh.antennapod.adapter.NewEpisodesListAdapter; +import de.danoeh.antennapod.core.asynctask.DownloadObserver; +import de.danoeh.antennapod.core.dialog.ConfirmationDialog; +import de.danoeh.antennapod.core.feed.EventDistributor; +import de.danoeh.antennapod.core.feed.Feed; +import de.danoeh.antennapod.core.feed.FeedItem; +import de.danoeh.antennapod.core.feed.FeedMedia; +import de.danoeh.antennapod.core.service.download.DownloadService; +import de.danoeh.antennapod.core.service.download.Downloader; +import de.danoeh.antennapod.core.storage.DBReader; +import de.danoeh.antennapod.core.storage.DBTasks; +import de.danoeh.antennapod.core.storage.DBWriter; +import de.danoeh.antennapod.core.storage.DownloadRequester; +import de.danoeh.antennapod.core.util.QueueAccess; +import de.danoeh.antennapod.menuhandler.MenuItemUtils; +import de.danoeh.antennapod.menuhandler.NavDrawerActivity; + +/** + * Shows unread or recently published episodes + */ +public class AllEpisodesFragment extends Fragment { + private static final String TAG = "AllEpisodesFragment"; + private static final int EVENTS = EventDistributor.DOWNLOAD_HANDLED | + EventDistributor.DOWNLOAD_QUEUED | + EventDistributor.QUEUE_UPDATE | + EventDistributor.UNREAD_ITEMS_UPDATE | + EventDistributor.PLAYER_STATUS_UPDATE; + + private static final int RECENT_EPISODES_LIMIT = 150; + private static final String DEFAULT_PREF_NAME = "PrefAllEpisodesFragment"; + private static final String PREF_KEY_LIST_TOP = "list_top"; + private static final String PREF_KEY_LIST_SELECTION = "list_selection"; + + private String prefName; + protected DragSortListView listView; + private NewEpisodesListAdapter listAdapter; + private TextView txtvEmpty; + private ProgressBar progLoading; + + private List<FeedItem> unreadItems; + private List<FeedItem> recentItems; + private QueueAccess queueAccess; + private List<Downloader> downloaderList; + + private boolean itemsLoaded = false; + private boolean viewsCreated = false; + private boolean showOnlyNewEpisodes = false; + + private AtomicReference<MainActivity> activity = new AtomicReference<MainActivity>(); + + private DownloadObserver downloadObserver = null; + + private boolean isUpdatingFeeds; + + public AllEpisodesFragment() { + // by default we show all the episodes + this(false, DEFAULT_PREF_NAME); + } + + // this is only going to be called by our sub-class. + // The Android docs say to avoid non-default constructors + // but I think this will be OK since it will only be invoked + // from a fragment via a default constructor + protected AllEpisodesFragment(boolean showOnlyNewEpisodes, String prefName) { + this.showOnlyNewEpisodes = showOnlyNewEpisodes; + this.prefName = prefName; + } + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setRetainInstance(true); + setHasOptionsMenu(true); + } + + @Override + public void onResume() { + super.onResume(); + startItemLoader(); + } + + @Override + public void onStart() { + super.onStart(); + EventDistributor.getInstance().register(contentUpdate); + this.activity.set((MainActivity) getActivity()); + if (downloadObserver != null) { + downloadObserver.setActivity(getActivity()); + downloadObserver.onResume(); + } + if (viewsCreated && itemsLoaded) { + onFragmentLoaded(); + } + } + + @Override + public void onPause() { + super.onPause(); + saveScrollPosition(); + } + + @Override + public void onStop() { + super.onStop(); + EventDistributor.getInstance().unregister(contentUpdate); + stopItemLoader(); + } + + @Override + public void onAttach(Activity activity) { + super.onAttach(activity); + this.activity.set((MainActivity) getActivity()); + } + + @Override + public void onDestroyView() { + super.onDestroyView(); + resetViewState(); + } + + private void saveScrollPosition() { + SharedPreferences prefs = getActivity().getSharedPreferences(prefName, Context.MODE_PRIVATE); + SharedPreferences.Editor editor = prefs.edit(); + View v = listView.getChildAt(0); + int top = (v == null) ? 0 : (v.getTop() - listView.getPaddingTop()); + editor.putInt(PREF_KEY_LIST_SELECTION, listView.getFirstVisiblePosition()); + editor.putInt(PREF_KEY_LIST_TOP, top); + editor.commit(); + } + + private void restoreScrollPosition() { + SharedPreferences prefs = getActivity().getSharedPreferences(prefName, Context.MODE_PRIVATE); + int listSelection = prefs.getInt(PREF_KEY_LIST_SELECTION, 0); + int top = prefs.getInt(PREF_KEY_LIST_TOP, 0); + if (listSelection > 0 || top > 0) { + listView.setSelectionFromTop(listSelection, top); + // restore once, then forget + SharedPreferences.Editor editor = prefs.edit(); + editor.putInt(PREF_KEY_LIST_SELECTION, 0); + editor.putInt(PREF_KEY_LIST_TOP, 0); + editor.commit(); + } + } + + protected void resetViewState() { + listAdapter = null; + activity.set(null); + viewsCreated = false; + if (downloadObserver != null) { + downloadObserver.onPause(); + } + } + + + private final MenuItemUtils.UpdateRefreshMenuItemChecker updateRefreshMenuItemChecker = new MenuItemUtils.UpdateRefreshMenuItemChecker() { + @Override + public boolean isRefreshing() { + return DownloadService.isRunning && DownloadRequester.getInstance().isDownloadingFeeds(); + } + }; + + @Override + public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { + super.onCreateOptionsMenu(menu, inflater); + if (itemsLoaded && !MenuItemUtils.isActivityDrawerOpen((NavDrawerActivity) getActivity())) { + inflater.inflate(R.menu.new_episodes, menu); + + final SearchView sv = new SearchView(getActivity()); + MenuItemUtils.addSearchItem(menu, sv); + sv.setQueryHint(getString(R.string.search_hint)); + sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() { + @Override + public boolean onQueryTextSubmit(String s) { + sv.clearFocus(); + ((MainActivity) getActivity()).loadChildFragment(SearchFragment.newInstance(s)); + return true; + } + + @Override + public boolean onQueryTextChange(String s) { + return false; + } + }); + isUpdatingFeeds = MenuItemUtils.updateRefreshMenuItem(menu, R.id.refresh_item, updateRefreshMenuItemChecker); + } + } + + @Override + public void onPrepareOptionsMenu(Menu menu) { + super.onPrepareOptionsMenu(menu); + if (itemsLoaded && !MenuItemUtils.isActivityDrawerOpen((NavDrawerActivity) getActivity())) { + MenuItem menuItem = menu.findItem(R.id.mark_all_read_item); + if (menuItem != null) { + menuItem.setVisible(unreadItems != null && !unreadItems.isEmpty()); + } + } + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + if (!super.onOptionsItemSelected(item)) { + switch (item.getItemId()) { + case R.id.refresh_item: + List<Feed> feeds = ((MainActivity) getActivity()).getFeeds(); + if (feeds != null) { + DBTasks.refreshAllFeeds(getActivity(), feeds); + } + return true; + case R.id.mark_all_read_item: + ConfirmationDialog conDialog = new ConfirmationDialog(getActivity(), + R.string.mark_all_read_label, + R.string.mark_all_read_confirmation_msg) { + + @Override + public void onConfirmButtonPressed( + DialogInterface dialog) { + dialog.dismiss(); + DBWriter.markAllItemsRead(getActivity()); + Toast.makeText(getActivity(), R.string.mark_all_read_msg, Toast.LENGTH_SHORT).show(); + } + }; + conDialog.createNewDialog().show(); + return true; + default: + return false; + } + } else { + return true; + } + + } + + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + return onCreateViewHelper(inflater, container, savedInstanceState, + R.layout.all_episodes_fragment, R.string.all_episodes_label); + } + + protected View onCreateViewHelper(LayoutInflater inflater, + ViewGroup container, + Bundle savedInstanceState, + int fragmentResource, + int titleString) { + super.onCreateView(inflater, container, savedInstanceState); + ((MainActivity) getActivity()).getSupportActionBar().setTitle(titleString); + + View root = inflater.inflate(fragmentResource, container, false); + + listView = (DragSortListView) root.findViewById(android.R.id.list); + txtvEmpty = (TextView) root.findViewById(android.R.id.empty); + progLoading = (ProgressBar) root.findViewById(R.id.progLoading); + + listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { + @Override + public void onItemClick(AdapterView<?> parent, View view, int position, long id) { + FeedItem item = (FeedItem) listAdapter.getItem(position - listView.getHeaderViewsCount()); + if (item != null) { + ((MainActivity) getActivity()).loadChildFragment(ItemFragment.newInstance(item.getId())); + } + + } + }); + + if (!itemsLoaded) { + progLoading.setVisibility(View.VISIBLE); + txtvEmpty.setVisibility(View.GONE); + } + + viewsCreated = true; + + if (itemsLoaded && activity.get() != null) { + onFragmentLoaded(); + } + + return root; + } + + private void onFragmentLoaded() { + if (listAdapter == null) { + listAdapter = new NewEpisodesListAdapter(activity.get(), itemAccess, new DefaultActionButtonCallback(activity.get())); + listView.setAdapter(listAdapter); + listView.setEmptyView(txtvEmpty); + downloadObserver = new DownloadObserver(activity.get(), new Handler(), downloadObserverCallback); + downloadObserver.onResume(); + } + listAdapter.notifyDataSetChanged(); + restoreScrollPosition(); + getActivity().supportInvalidateOptionsMenu(); + updateShowOnlyEpisodesListViewState(); + } + + private DownloadObserver.Callback downloadObserverCallback = new DownloadObserver.Callback() { + @Override + public void onContentChanged() { + if (listAdapter != null) { + listAdapter.notifyDataSetChanged(); + } + } + + @Override + public void onDownloadDataAvailable(List<Downloader> downloaderList) { + AllEpisodesFragment.this.downloaderList = downloaderList; + if (listAdapter != null) { + listAdapter.notifyDataSetChanged(); + } + } + }; + + private NewEpisodesListAdapter.ItemAccess itemAccess = new NewEpisodesListAdapter.ItemAccess() { + + @Override + public int getCount() { + if (itemsLoaded) { + return (showOnlyNewEpisodes) ? unreadItems.size() : recentItems.size(); + } + return 0; + } + + @Override + public FeedItem getItem(int position) { + if (itemsLoaded) { + return (showOnlyNewEpisodes) ? unreadItems.get(position) : recentItems.get(position); + } + return null; + } + + @Override + public int getItemDownloadProgressPercent(FeedItem item) { + if (downloaderList != null) { + for (Downloader downloader : downloaderList) { + if (downloader.getDownloadRequest().getFeedfileType() == FeedMedia.FEEDFILETYPE_FEEDMEDIA + && downloader.getDownloadRequest().getFeedfileId() == item.getMedia().getId()) { + return downloader.getDownloadRequest().getProgressPercent(); + } + } + } + return 0; + } + + @Override + public boolean isInQueue(FeedItem item) { + if (itemsLoaded) { + return queueAccess.contains(item.getId()); + } else { + return false; + } + } + + + }; + + private EventDistributor.EventListener contentUpdate = new EventDistributor.EventListener() { + @Override + public void update(EventDistributor eventDistributor, Integer arg) { + if ((arg & EVENTS) != 0) { + startItemLoader(); + if (isUpdatingFeeds != updateRefreshMenuItemChecker.isRefreshing()) { + getActivity().supportInvalidateOptionsMenu(); + } + } + } + }; + + private void updateShowOnlyEpisodesListViewState() { + if (showOnlyNewEpisodes) { + listView.setEmptyView(null); + txtvEmpty.setVisibility(View.GONE); + } else { + listView.setEmptyView(txtvEmpty); + } + } + + private ItemLoader itemLoader; + + private void startItemLoader() { + if (itemLoader != null) { + itemLoader.cancel(true); + } + itemLoader = new ItemLoader(); + itemLoader.execute(); + } + + protected void stopItemLoader() { + if (itemLoader != null) { + itemLoader.cancel(true); + } + } + + private class ItemLoader extends AsyncTask<Void, Void, Object[]> { + + @Override + protected void onPreExecute() { + super.onPreExecute(); + if (viewsCreated && !itemsLoaded) { + listView.setVisibility(View.GONE); + txtvEmpty.setVisibility(View.GONE); + progLoading.setVisibility(View.VISIBLE); + } + } + + @Override + protected Object[] doInBackground(Void... params) { + Context context = activity.get(); + if (context != null) { + return new Object[]{DBReader.getUnreadItemsList(context), + DBReader.getRecentlyPublishedEpisodes(context, RECENT_EPISODES_LIMIT), + QueueAccess.IDListAccess(DBReader.getQueueIDList(context))}; + } else { + return null; + } + } + + @Override + protected void onPostExecute(Object[] lists) { + super.onPostExecute(lists); + listView.setVisibility(View.VISIBLE); + progLoading.setVisibility(View.GONE); + + if (lists != null) { + unreadItems = (List<FeedItem>) lists[0]; + recentItems = (List<FeedItem>) lists[1]; + queueAccess = (QueueAccess) lists[2]; + itemsLoaded = true; + if (viewsCreated && activity.get() != null) { + onFragmentLoaded(); + } + } + } + } +} |