#453 Move to using a RecyclerView for directories

1 files changed, 254 insertions, 0 deletions

diff --git a/app/src/main/java/github/daneren2005/dsub/adapter/EntryGridAdapter.java b/app/src/main/java/github/daneren2005/dsub/adapter/EntryGridAdapter.java
new file mode 100644
index 00000000..6de7ce33
--- /dev/null
+++ b/app/src/main/java/github/daneren2005/dsub/adapter/EntryGridAdapter.java
@@ -0,0 +1,254 @@
+/*
+  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.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+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.util.ImageLoader;
+import github.daneren2005.dsub.view.AlbumView;
+import github.daneren2005.dsub.view.SongView;
+import github.daneren2005.dsub.view.UpdateView;
+import github.daneren2005.dsub.view.UpdateView.UpdateViewHolder;
+
+public class EntryGridAdapter extends RecyclerView.Adapter<UpdateViewHolder> {
+	private static String TAG = EntryGridAdapter.class.getSimpleName();
+
+	public static int VIEW_TYPE_HEADER = 0;
+	public static int VIEW_TYPE_ALBUM_CELL = 1;
+	public static int VIEW_TYPE_ALBUM_LINE = 2;
+	public static int VIEW_TYPE_SONG = 3;
+
+	protected Context context;
+	protected List<Entry> entries;
+	private ImageLoader imageLoader;
+	private boolean largeAlbums;
+	private boolean showArtist = false;
+	private boolean checkable = true;
+	private OnEntryClickedListener onEntryClickedListener;
+
+	private View header;
+	private List<Entry> selected = new ArrayList<Entry>();
+	private UpdateView contextView;
+	private Entry contextEntry;
+
+	public EntryGridAdapter(Context context, List<Entry> entries, ImageLoader imageLoader, boolean largeCell) {
+		this.context = context;
+		this.entries = entries;
+		this.imageLoader = imageLoader;
+		this.largeAlbums = largeCell;
+
+		// Always show artist if they aren't all the same
+		String artist = null;
+		for(MusicDirectory.Entry entry: entries) {
+			if(artist == null) {
+				artist = entry.getArtist();
+			}
+
+			if(artist != null && !artist.equals(entry.getArtist())) {
+				showArtist = true;
+			}
+		}
+	}
+
+	@Override
+	public UpdateViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+		if(viewType == VIEW_TYPE_HEADER) {
+			return new UpdateViewHolder(header, false);
+		}
+
+		UpdateView updateView = null;
+		if(viewType == VIEW_TYPE_ALBUM_LINE || viewType == VIEW_TYPE_ALBUM_CELL) {
+			updateView = new AlbumView(context, viewType == VIEW_TYPE_ALBUM_CELL);
+		} else if(viewType == VIEW_TYPE_SONG) {
+			updateView = new SongView(context);
+		}
+
+		if(viewType != VIEW_TYPE_HEADER && updateView != null) {
+			final UpdateView view = updateView;
+			updateView.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					Entry entry = getEntryForView(view);
+
+					if (view.isCheckable() && v instanceof SongView) {
+						SongView songView = (SongView) v;
+
+						if (selected.contains(entry)) {
+							selected.remove(entry);
+							songView.setChecked(false);
+						} else {
+							selected.add(entry);
+							songView.setChecked(true);
+						}
+					} else if (onEntryClickedListener != null) {
+						onEntryClickedListener.onEntryClicked(entry);
+					}
+				}
+			});
+			updateView.setOnLongClickListener(new View.OnLongClickListener() {
+				@Override
+				public boolean onLongClick(View v) {
+					Entry entry = getEntryForView(view);
+
+					setContextEntry(view, entry);
+					v.showContextMenu();
+					return false;
+				}
+			});
+
+			View moreButton = updateView.findViewById(R.id.more_button);
+			if(moreButton != null) {
+				moreButton.setOnClickListener(new View.OnClickListener() {
+					@Override
+					public void onClick(View v) {
+						Entry entry = getEntryForView(view);
+						setContextEntry(view, entry);
+						v.showContextMenu();
+					}
+				});
+			}
+		}
+
+		return new UpdateViewHolder(updateView);
+	}
+
+	@Override
+	public void onBindViewHolder(UpdateViewHolder holder, int position) {
+		// Header already created
+		if(header != null && position == 0) {
+			return;
+		}
+
+		UpdateView view = holder.getUpdateView();
+
+		int viewType = getItemViewType(position);
+		Entry entry = getEntryForPosition(position);
+		if(viewType == VIEW_TYPE_ALBUM_CELL || viewType == VIEW_TYPE_ALBUM_LINE) {
+			AlbumView albumView = (AlbumView) view;
+			albumView.setShowArtist(showArtist);
+			albumView.setObject(entry, imageLoader);
+		} else if(viewType == VIEW_TYPE_SONG) {
+			SongView songView = (SongView) view;
+			songView.setObject(entry, checkable);
+			songView.setChecked(selected.contains(entry));
+		}
+		view.setPosition(position);
+	}
+
+	@Override
+	public int getItemCount() {
+		int size = entries.size();
+
+		if(header != null) {
+			size++;
+		}
+
+		return size;
+	}
+
+	@Override
+	public int getItemViewType(int position) {
+		if(header != null && position == 0) {
+			return VIEW_TYPE_HEADER;
+		}
+
+		Entry entry = getEntryForPosition(position);
+		if(entry.isDirectory()) {
+			if (largeAlbums) {
+				return VIEW_TYPE_ALBUM_CELL;
+			} else {
+				return VIEW_TYPE_ALBUM_LINE;
+			}
+		} else {
+			return VIEW_TYPE_SONG;
+		}
+	}
+
+	public Entry getEntryForView(UpdateView view) {
+		int position = view.getPosition();
+		return getEntryForPosition(position);
+	}
+	public Entry getEntryForPosition(int position) {
+		if(header != null) {
+			position--;
+		}
+
+		return entries.get(position);
+	}
+
+	public void setHeader(View header) {
+		this.header = header;
+	}
+
+	public void setShowArtist(boolean showArtist) {
+		this.showArtist = showArtist;
+	}
+	public void setCheckable(boolean checkable) {
+		this.checkable = checkable;
+	}
+
+	public void setOnEntryClickedListener(OnEntryClickedListener listener) {
+		this.onEntryClickedListener = listener;
+	}
+
+	public List<Entry> getSelected() {
+		List<Entry> selected = new ArrayList<>();
+		selected.addAll(this.selected);
+		return selected;
+	}
+	public void clearSelected() {
+		for(Entry entry: selected) {
+			int index = entries.indexOf(entry);
+			this.notifyItemChanged(index);
+		}
+		selected.clear();
+	}
+
+	public void removeEntry(Entry entry) {
+		int index = entries.indexOf(entry);
+		if(index != -1) {
+			removeAt(index);
+		}
+	}
+	public void removeAt(int index) {
+		entries.remove(index);
+		notifyItemRemoved(index);
+	}
+
+	public void setContextEntry(UpdateView view, Entry entry) {
+		this.contextView = view;
+		this.contextEntry = entry;
+	}
+	public UpdateView getContextView() {
+		return contextView;
+	}
+	public Entry getContextEntry() {
+		return contextEntry;
+	}
+
+	public interface OnEntryClickedListener {
+		void onEntryClicked(Entry entry);
+	}
+}