/*
* Copyright (C) 2017 Team Gateship-One
* (Hendrik Borghorst & Frederik Luetkes)
*
* The AUTHORS.md file contains a detailed contributors list:
* <https://github.com/gateship-one/odyssey/blob/master/AUTHORS.md>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.gateshipone.odyssey.fragments;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.RemoteException;
import android.support.v4.content.Loader;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.preference.PreferenceManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.TextView;
import org.gateshipone.odyssey.R;
import org.gateshipone.odyssey.adapter.AlbumsAdapter;
import org.gateshipone.odyssey.artworkdatabase.ArtworkManager;
import org.gateshipone.odyssey.listener.OnAlbumSelectedListener;
import org.gateshipone.odyssey.listener.ToolbarAndFABCallback;
import org.gateshipone.odyssey.models.AlbumModel;
import org.gateshipone.odyssey.utils.ScrollSpeedListener;
import org.gateshipone.odyssey.utils.ThemeUtils;
import java.util.List;
public abstract class GenericAlbumsFragment extends OdysseyFragment<AlbumModel> implements AdapterView.OnItemClickListener {
/**
* Listener to open an album
*/
protected OnAlbumSelectedListener mAlbumSelectedCallback;
/**
* Save the last scroll position to resume there
*/
protected int mLastPosition = -1;
/**
* Called to create instantiate the UI of the fragment.
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootView;
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getContext());
String viewAppearance = sharedPref.getString(getString(R.string.pref_view_library_key), getString(R.string.pref_library_view_default));
boolean useList = viewAppearance.equals(getString(R.string.pref_library_view_list_key));
if (useList) {
rootView = inflater.inflate(R.layout.list_refresh, container, false);
// get listview
mListView = (AbsListView) rootView.findViewById(R.id.list_refresh_listview);
} else {
rootView = inflater.inflate(R.layout.grid_refresh, container, false);
// get gridview
mListView = (AbsListView) rootView.findViewById(R.id.grid_refresh_gridview);
}
// get swipe layout
mSwipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.refresh_layout);
// set swipe colors
mSwipeRefreshLayout.setColorSchemeColors(ThemeUtils.getThemeColor(getContext(), R.attr.colorAccent),
ThemeUtils.getThemeColor(getContext(), R.attr.colorPrimary));
// set swipe refresh listener
mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
refreshContent();
}
});
mAdapter = new AlbumsAdapter(getActivity(), mListView, useList);
mListView.setAdapter(mAdapter);
mListView.setOnScrollListener(new ScrollSpeedListener(mAdapter, mListView));
mListView.setOnItemClickListener(this);
// get empty view
mEmptyView = rootView.findViewById(R.id.empty_view);
// set empty view message
((TextView) rootView.findViewById(R.id.empty_view_message)).setText(R.string.empty_albums_message);
// register for context menu
registerForContextMenu(mListView);
return rootView;
}
@Override
public void onResume() {
super.onResume();
ArtworkManager.getInstance(getContext().getApplicationContext()).registerOnNewAlbumImageListener((AlbumsAdapter)mAdapter);
}
@Override
public void onPause() {
super.onPause();
ArtworkManager.getInstance(getContext().getApplicationContext()).unregisterOnNewAlbumImageListener((AlbumsAdapter)mAdapter);
}
/**
* Called when the fragment is first attached to its context.
*/
@Override
public void onAttach(Context context) {
super.onAttach(context);
// This makes sure that the container activity has implemented
// the callback interface. If not, it throws an exception
try {
mAlbumSelectedCallback = (OnAlbumSelectedListener) context;
} catch (ClassCastException e) {
throw new ClassCastException(context.toString() + " must implement OnAlbumSelectedListener");
}
try {
mToolbarAndFABCallback = (ToolbarAndFABCallback) context;
} catch (ClassCastException e) {
throw new ClassCastException(context.toString() + " must implement ToolbarAndFABCallback");
}
}
/**
* Called when the loader finished loading its data.
*
* @param loader The used loader itself
* @param data Data of the loader
*/
@Override
public void onLoadFinished(Loader<List<AlbumModel>> loader, List<AlbumModel> data) {
super.onLoadFinished(loader, data);
// Reset old scroll position
if (mLastPosition >= 0) {
mListView.setSelection(mLastPosition);
mLastPosition = -1;
}
}
/**
* Callback when an item in the GridView was clicked.
*/
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// save last scroll position
mLastPosition = position;
// identify current album
AlbumModel currentAlbum = (AlbumModel) mAdapter.getItem(position);
// send the event to the host activity
mAlbumSelectedCallback.onAlbumSelected(currentAlbum);
}
/**
* Call the PBS to enqueue the selected album.
*
* @param position the position of the selected album in the adapter
*/
protected void enqueueAlbum(int position) {
// identify current album
AlbumModel clickedAlbum = (AlbumModel) mAdapter.getItem(position);
String albumKey = clickedAlbum.getAlbumKey();
// enqueue album
try {
mServiceConnection.getPBS().enqueueAlbum(albumKey);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Call the PBS to play the selected album.
* A previous playlist will be cleared.
*
* @param position the position of the selected album in the adapter
*/
protected void playAlbum(int position) {
// Remove old tracks
try {
mServiceConnection.getPBS().clearPlaylist();
} catch (RemoteException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// get and enqueue albumtracks
enqueueAlbum(position);
// play album
try {
mServiceConnection.getPBS().jumpTo(0);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}