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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 2010 (C) Sindre Mehus
*/
package github.daneren2005.dsub.adapter;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.SectionIndexer;
import com.commonsware.cwac.endless.EndlessAdapter;
import github.daneren2005.dsub.R;
import github.daneren2005.dsub.domain.MusicDirectory;
import github.daneren2005.dsub.domain.ServerInfo;
import github.daneren2005.dsub.service.MusicService;
import github.daneren2005.dsub.service.MusicServiceFactory;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
public class AlbumListAdapter extends EndlessAdapter implements SectionIndexer {
private static final String TAG = AlbumListAdapter.class.getSimpleName();
Context context;
ArrayAdapter<MusicDirectory.Entry> adapter;
String type;
String extra;
int size;
int offset;
List<MusicDirectory.Entry> entries;
private boolean shouldIndex = false;
private Object[] sections;
private Integer[] positions;
public AlbumListAdapter(Context context, ArrayAdapter<MusicDirectory.Entry> adapter, String type, String extra, int size) {
super(adapter);
this.context = context;
this.adapter = adapter;
this.type = type;
this.extra = extra;
this.size = size;
this.offset = size;
if("alphabeticalByName".equals(this.type)) {
shouldIndex = true;
recreateIndexes();
}
}
@Override
protected boolean cacheInBackground() throws Exception {
MusicService service = MusicServiceFactory.getMusicService(context);
MusicDirectory result;
if(("genres".equals(type) && ServerInfo.checkServerVersion(context, "1.10.0")) || "years".equals(type)) {
result = service.getAlbumList(type, extra, size, offset, context, null);
} else if("genres".equals(type) || "genres-songs".equals(type)) {
result = service.getSongsByGenre(extra, size, offset, context, null);
} else {
result = service.getAlbumList(type, size, offset, context, null);
}
entries = result.getChildren();
return entries.size() > 0;
}
@Override
protected void appendCachedData() {
for(MusicDirectory.Entry entry: entries) {
adapter.add(entry);
}
offset += entries.size();
recreateIndexes();
}
@Override
protected View getPendingView(ViewGroup parent) {
View progress = LayoutInflater.from(context).inflate(R.layout.tab_progress, null);
progress.setVisibility(View.VISIBLE);
return progress;
}
private void recreateIndexes() {
try {
if (!shouldIndex) {
return;
}
Set<String> sectionSet = new LinkedHashSet<String>(30);
List<Integer> positionList = new ArrayList<Integer>(30);
for (int i = 0; i < adapter.getCount(); i++) {
MusicDirectory.Entry entry = adapter.getItem(i);
String index;
if (entry.getAlbum() != null) {
index = entry.getAlbum().substring(0, 1);
if (!Character.isLetter(index.charAt(0))) {
index = "#";
}
} else {
index = "*";
}
if (!sectionSet.contains(index)) {
sectionSet.add(index);
positionList.add(i);
}
}
sections = sectionSet.toArray(new Object[sectionSet.size()]);
positions = positionList.toArray(new Integer[positionList.size()]);
} catch(Exception e) {
Log.e(TAG, "Error while recreating indexes");
}
}
@Override
public Object[] getSections() {
if(sections != null) {
return sections;
} else {
return new Object[0];
}
}
@Override
public int getPositionForSection(int section) {
if(sections != null) {
section = Math.min(section, positions.length - 1);
return positions[section];
} else {
return 0;
}
}
@Override
public int getSectionForPosition(int pos) {
if(sections != null) {
for (int i = 0; i < sections.length - 1; i++) {
if (pos < positions[i + 1]) {
return i;
}
}
return sections.length - 1;
} else {
return 0;
}
}
}
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