1 files changed, 154 insertions, 0 deletions
diff --git a/app/src/main/java/github/daneren2005/dsub/adapter/AlbumListAdapter.java b/app/src/main/java/github/daneren2005/dsub/adapter/AlbumListAdapter.java
new file mode 100644
index 00000000..b2fcded3
--- /dev/null
+++ b/app/src/main/java/github/daneren2005/dsub/adapter/AlbumListAdapter.java
@@ -0,0 +1,154 @@
+/*
+ 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.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 {
+	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() {
+		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 = entry.getAlbum().substring(0, 1);
+			if(!Character.isLetter(index.charAt(0))) {
+				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()]);
+	}
+
+	@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;
+		}
+	}
+}