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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.adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import java.util.List;
import github.daneren2005.dsub.R;
import github.daneren2005.dsub.domain.MusicDirectory;
import github.daneren2005.dsub.domain.MusicDirectory.Entry;
import github.daneren2005.dsub.domain.ServerInfo;
import github.daneren2005.dsub.fragments.MainFragment;
import github.daneren2005.dsub.service.MusicService;
import github.daneren2005.dsub.service.MusicServiceFactory;
import github.daneren2005.dsub.util.ImageLoader;
import github.daneren2005.dsub.util.SilentBackgroundTask;
import github.daneren2005.dsub.view.UpdateView;
public class EntryInfiniteGridAdapter extends EntryGridAdapter {
public static int VIEW_TYPE_LOADING = 4;
private String type;
private String extra;
private int size;
private boolean loading = false;
private boolean allLoaded = false;
public EntryInfiniteGridAdapter(Context context, List<Entry> entries, ImageLoader imageLoader, boolean largeCell) {
super(context, entries, imageLoader, largeCell);
}
@NonNull
@Override
public UpdateView.UpdateViewHolder<Entry> onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
if(viewType == VIEW_TYPE_LOADING) {
View progress = LayoutInflater.from(context).inflate(R.layout.tab_progress, null);
progress.setVisibility(View.VISIBLE);
return new UpdateView.UpdateViewHolder(progress);
}
return super.onCreateViewHolder(parent, viewType);
}
@Override
public int getItemViewType(int position) {
if(isLoadingView(position)) {
return VIEW_TYPE_LOADING;
}
return super.getItemViewType(position);
}
@Override
public void onBindViewHolder(UpdateView.UpdateViewHolder holder, int position) {
if(!isLoadingView(position)) {
super.onBindViewHolder(holder, position);
}
}
@Override
public int getItemCount() {
int size = super.getItemCount();
if(!allLoaded) {
size++;
}
return size;
}
public void setData(String type, String extra, int size) {
this.type = type;
this.extra = extra;
this.size = size;
if(super.getItemCount() < size) {
allLoaded = true;
}
}
public void loadMore() {
if(loading || allLoaded) {
return;
}
loading = true;
new SilentBackgroundTask<Void>(context) {
private List<Entry> newData;
@Override
protected Void doInBackground() throws Throwable {
newData = cacheInBackground();
return null;
}
@Override
protected void done(Void result) {
appendCachedData(newData);
loading = false;
if(newData.size() < size) {
allLoaded = true;
notifyDataSetChanged();
}
}
}.execute();
}
protected List<Entry> cacheInBackground() throws Exception {
MusicService service = MusicServiceFactory.getMusicService(context);
MusicDirectory result;
int offset = sections.get(0).size();
if(("genres".equals(type) && ServerInfo.checkServerVersion(context, "1.10.0")) || "years".equals(type)) {
result = service.getAlbumList(type, extra, size, offset, false, context, null);
} else if("genres".equals(type) || "genres-songs".equals(type)) {
result = service.getSongsByGenre(extra, size, offset, context, null);
}else if(type.contains(MainFragment.SONGS_LIST_PREFIX)) {
result = service.getSongList(type, size, offset, context, null);
} else {
result = service.getAlbumList(type, size, offset, false, context, null);
}
return result.getChildren();
}
protected void appendCachedData(List<Entry> newData) {
if(newData.size() > 0) {
int start = sections.get(0).size();
sections.get(0).addAll(newData);
this.notifyItemRangeInserted(start, newData.size());
}
}
protected boolean isLoadingView(int position) {
return !allLoaded && position >= sections.get(0).size();
}
}
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