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/*
* Copyright (C) 2012 Andrew Neal
* Copyright (C) 2014 The CyanogenMod 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.cyanogenmod.eleven.ui.fragments.profile;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import com.cyanogenmod.eleven.Config;
import com.cyanogenmod.eleven.MusicStateListener;
import com.cyanogenmod.eleven.R;
import com.cyanogenmod.eleven.adapters.SongAdapter;
import com.cyanogenmod.eleven.model.Song;
import com.cyanogenmod.eleven.recycler.RecycleHolder;
import com.cyanogenmod.eleven.sectionadapter.SectionAdapter;
import com.cyanogenmod.eleven.sectionadapter.SectionListContainer;
import com.cyanogenmod.eleven.service.MusicPlaybackTrack;
import com.cyanogenmod.eleven.ui.activities.BaseActivity;
import com.cyanogenmod.eleven.utils.MusicUtils;
import com.cyanogenmod.eleven.utils.PopupMenuHelper;
import com.cyanogenmod.eleven.utils.SongPopupMenuHelper;
import com.cyanogenmod.eleven.widgets.IPopupMenuCallback;
import com.cyanogenmod.eleven.widgets.LoadingEmptyContainer;
import com.cyanogenmod.eleven.widgets.NoResultsContainer;
import java.util.TreeSet;
/**
* This class is used to display all of the songs
*
* @author Andrew Neal (andrewdneal@gmail.com)
*/
public abstract class BasicSongFragment extends Fragment implements
LoaderCallbacks<SectionListContainer<Song>>, OnItemClickListener, MusicStateListener {
/**
* Fragment UI
*/
protected ViewGroup mRootView;
/**
* The adapter for the list
*/
protected SectionAdapter<Song, SongAdapter> mAdapter;
/**
* The list view
*/
protected ListView mListView;
/**
* Pop up menu helper
*/
protected PopupMenuHelper mPopupMenuHelper;
/**
* This holds the loading progress bar as well as the no results message
*/
protected LoadingEmptyContainer mLoadingEmptyContainer;
/**
* Empty constructor as per the {@link Fragment} documentation
*/
public BasicSongFragment() {
}
/**
* {@inheritDoc}
*/
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPopupMenuHelper = new SongPopupMenuHelper(getActivity(), getFragmentManager()) {
@Override
public Song getSong(int position) {
return mAdapter.getTItem(position);
}
@Override
protected long getSourceId() {
return getFragmentSourceId();
}
@Override
protected Config.IdType getSourceType() {
return getFragmentSourceType();
}
@Override
protected void updateMenuIds(PopupMenuType type, TreeSet<Integer> set) {
super.updateMenuIds(type, set);
BasicSongFragment.this.updateMenuIds(set);
}
};
// Create the adapter
mAdapter = new SectionAdapter<Song, SongAdapter>(getActivity(), createAdapter());
mAdapter.setPopupMenuClickedListener(new IPopupMenuCallback.IListener() {
@Override
public void onPopupMenuClicked(View v, int position) {
mPopupMenuHelper.showPopupMenu(v, position);
}
});
}
protected long getFragmentSourceId() {
return -1;
}
protected Config.IdType getFragmentSourceType() {
return Config.IdType.NA;
}
protected void updateMenuIds(TreeSet<Integer> set) {
// do nothing - let subclasses override
}
/**
* {@inheritDoc}
*/
@Override
public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
final Bundle savedInstanceState) {
// The View for the fragment's UI
mRootView = (ViewGroup) inflater.inflate(R.layout.list_base, null);
// set the background on the root view
mRootView.setBackgroundColor(getResources().getColor(R.color.background_color));
// Initialize the list
mListView = (ListView) mRootView.findViewById(R.id.list_base);
// Set the data behind the list
mListView.setAdapter(mAdapter);
// Release any references to the recycled Views
mListView.setRecyclerListener(new RecycleHolder());
// Play the selected song
mListView.setOnItemClickListener(this);
// To help make scrolling smooth
mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// Pause disk cache access to ensure smoother scrolling
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
mAdapter.getUnderlyingAdapter().setPauseDiskCache(true);
} else {
mAdapter.getUnderlyingAdapter().setPauseDiskCache(false);
mAdapter.notifyDataSetChanged();
}
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
}
});
// Show progress bar
mLoadingEmptyContainer = (LoadingEmptyContainer)mRootView.findViewById(R.id.loading_empty_container);
// Setup the container strings
setupNoResultsContainer(mLoadingEmptyContainer.getNoResultsContainer());
mListView.setEmptyView(mLoadingEmptyContainer);
// Register the music status listener
((BaseActivity)getActivity()).setMusicStateListenerListener(this);
return mRootView;
}
@Override
public void onDestroyView() {
super.onDestroyView();
((BaseActivity)getActivity()).removeMusicStateListenerListener(this);
}
/**
* This allows subclasses to customize the look and feel of the no results container
* @param empty NoResultsContainer class
*/
public void setupNoResultsContainer(final NoResultsContainer empty) {
// do nothing
}
/**
* {@inheritDoc}
*/
@Override
public void onActivityCreated(final Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Start the loader
getFragmentLoaderManager().initLoader(getLoaderId(), null, this);
}
/**
* {@inheritDoc}
*/
@Override
public void onItemClick(final AdapterView<?> parent, final View view, final int position,
final long id) {
playAll(position);
}
/**
* {@inheritDoc}
*/
@Override
public void onLoadFinished(final Loader<SectionListContainer<Song>> loader,
final SectionListContainer<Song> data) {
if (data.mListResults.isEmpty()) {
mAdapter.unload();
mLoadingEmptyContainer.showNoResults();
return;
}
mAdapter.setData(data);
}
/**
* @return Gets the list of song ids from the adapter, or null if none
*/
protected long[] getSongIdsFromAdapter() {
if (mAdapter != null) {
final SongAdapter adapter = mAdapter.getUnderlyingAdapter();
if (adapter != null) {
return adapter.getSongIds();
}
}
return null;
}
/**
* Restarts the loader.
*/
public void refresh() {
// Wait a moment for the preference to change.
SystemClock.sleep(10);
restartLoader();
}
/**
* {@inheritDoc}
*/
@Override
public void restartLoader() {
// Update the list when the user deletes any items
getFragmentLoaderManager().restartLoader(getLoaderId(), null, this);
}
/**
* {@inheritDoc}
*/
@Override
public void onLoaderReset(final Loader<SectionListContainer<Song>> loader) {
// Clear the data in the adapter
mAdapter.unload();
}
/**
* If the subclasses want to use a customized SongAdapter they can override this method
* @return the Song adapter
*/
protected SongAdapter createAdapter() {
return new SongAdapter(
getActivity(),
R.layout.list_item_normal,
getFragmentSourceId(),
getFragmentSourceType()
);
}
/**
* Allow subclasses to specify a different loader manager
* @return Loader Manager to use
*/
public LoaderManager getFragmentLoaderManager() {
return getLoaderManager();
}
@Override
public void onMetaChanged() {
MusicPlaybackTrack currentTrack = MusicUtils.getCurrentTrack();
if (mAdapter.getUnderlyingAdapter().setCurrentlyPlayingTrack(currentTrack)) {
mAdapter.notifyDataSetChanged();
}
}
@Override
public void onPlaylistChanged() {
// Nothing to do
}
/**
* LoaderCallbacks identifier
*/
public abstract int getLoaderId();
/**
* If the user clisk play all
*
* @param position the position of the item clicked or -1 if shuffle all
*/
public abstract void playAll(int position);
}
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