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/*
This file is part of Subsonic.
Subsonic 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.
Subsonic 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 Subsonic. If not, see <http://www.gnu.org/licenses/>.
Copyright 2015 (C) Scott Jackson
*/
package github.daneren2005.dsub.fragments;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.SearchView;
import android.util.Log;
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 java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import github.daneren2005.dsub.R;
import github.daneren2005.dsub.adapter.SectionAdapter;
import github.daneren2005.dsub.service.MusicService;
import github.daneren2005.dsub.service.MusicServiceFactory;
import github.daneren2005.dsub.util.Constants;
import github.daneren2005.dsub.util.ProgressListener;
import github.daneren2005.dsub.util.TabBackgroundTask;
import github.daneren2005.dsub.view.FastScroller;
public abstract class SelectRecyclerFragment<T> extends SubsonicFragment implements SectionAdapter.OnItemClickedListener<T> {
private static final String TAG = SelectRecyclerFragment.class.getSimpleName();
protected RecyclerView recyclerView;
protected FastScroller fastScroller;
protected SectionAdapter<T> adapter;
protected UpdateTask currentTask;
protected List<T> objects;
protected boolean serialize = true;
protected boolean largeAlbums = false;
protected boolean pullToRefresh = true;
protected boolean backgroundUpdate = true;
@Override
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
if(bundle != null && serialize) {
objects = (List<T>) bundle.getSerializable(Constants.FRAGMENT_LIST);
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if(serialize) {
outState.putSerializable(Constants.FRAGMENT_LIST, (Serializable) objects);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
rootView = inflater.inflate(R.layout.abstract_recycler_fragment, container, false);
refreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.refresh_layout);
refreshLayout.setOnRefreshListener(this);
recyclerView = (RecyclerView) rootView.findViewById(R.id.fragment_recycler);
fastScroller = (FastScroller) rootView.findViewById(R.id.fragment_fast_scroller);
setupLayoutManager();
if(pullToRefresh) {
setupScrollList(recyclerView);
} else {
refreshLayout.setEnabled(false);
}
if(objects == null) {
refresh(false);
} else {
recyclerView.setAdapter(adapter = getAdapter(objects));
}
return rootView;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
if(!primaryFragment) {
return;
}
menuInflater.inflate(getOptionsMenu(), menu);
onFinishSetupOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
return super.onOptionsItemSelected(item);
}
@Override
public void setIsOnlyVisible(boolean isOnlyVisible) {
boolean update = this.isOnlyVisible != isOnlyVisible;
super.setIsOnlyVisible(isOnlyVisible);
if(update && adapter != null) {
RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
if(layoutManager instanceof GridLayoutManager) {
((GridLayoutManager) layoutManager).setSpanCount(getRecyclerColumnCount());
}
}
}
@Override
protected void refresh(final boolean refresh) {
int titleRes = getTitleResource();
if(titleRes != 0) {
setTitle(getTitleResource());
}
if(backgroundUpdate) {
recyclerView.setVisibility(View.GONE);
}
// Cancel current running task before starting another one
if(currentTask != null) {
currentTask.cancel();
}
currentTask = new UpdateTask(this, refresh);
if(backgroundUpdate) {
currentTask.execute();
} else {
objects = new ArrayList<T>();
try {
objects = getObjects(null, refresh, null);
} catch (Exception x) {
Log.e(TAG, "Failed to load", x);
}
currentTask.done(objects);
}
}
public SectionAdapter getCurrentAdapter() {
return adapter;
}
private void setupLayoutManager() {
setupLayoutManager(recyclerView, largeAlbums);
}
public abstract int getOptionsMenu();
public abstract SectionAdapter<T> getAdapter(List<T> objs);
public abstract List<T> getObjects(MusicService musicService, boolean refresh, ProgressListener listener) throws Exception;
public abstract int getTitleResource();
public void onFinishRefresh() {
}
private class UpdateTask extends TabBackgroundTask<List<T>> {
private boolean refresh;
public UpdateTask(SubsonicFragment fragment, boolean refresh) {
super(fragment);
this.refresh = refresh;
}
@Override
public List<T> doInBackground() throws Exception {
MusicService musicService = MusicServiceFactory.getMusicService(context);
objects = new ArrayList<T>();
try {
objects = getObjects(musicService, refresh, this);
} catch (Exception x) {
Log.e(TAG, "Failed to load", x);
}
return objects;
}
@Override
public void done(List<T> result) {
if (result != null && !result.isEmpty()) {
recyclerView.setAdapter(adapter = getAdapter(result));
if(!fastScroller.isAttached()) {
fastScroller.attachRecyclerView(recyclerView);
}
onFinishRefresh();
recyclerView.setVisibility(View.VISIBLE);
} else {
setEmpty(true);
}
currentTask = null;
}
}
}
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