PlaylistList.java :  » Music-Sound » five » org » devtcg » five » activity » Android Open Source

/*
 * $Id: PlaylistList.java 1145 2009-11-18 07:10:43Z jasta00 $
 *
 * Copyright (C) 2008 Josh Guilfoyle <jasta@devtcg.org>
 *
 * This program 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 2, or (at your option) any
 * later version.
 *
 * This program 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.
 */

package org.devtcg.five.activity;

import org.devtcg.five.R;
import org.devtcg.five.provider.Five;
import org.devtcg.five.widget.EfficientCursorAdapter;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.SimpleCursorAdapter.ViewBinder;

public class PlaylistList extends Activity implements ViewBinder
{
  public static final String TAG = "Playlists";
  
  private ListView mList;
  private EfficientCursorAdapter mAdapter;
  
  private boolean mCreateShortcut = false;

  private static final String QUERY_FIELDS[] =
    { Five.Music.Playlists._ID, Five.Music.Playlists.NAME,
    Five.Music.Playlists.NUM_SONGS };
  
  private static final int MENU_RETURN_LIBRARY = Menu.FIRST;
  private static final int MENU_GOTO_PLAYER = Menu.FIRST + 1;
  
  private Cursor getCursor(String sel, String[] args)
  {
    return getContentResolver().query(getIntent().getData(),
      QUERY_FIELDS, sel, args, Five.Music.Playlists.NAME + " ASC");
  }
  
  public static void show(Context context)
  {
    context.startActivity(new Intent(context, PlaylistList.class));
  }

  @Override
  public void onCreate(Bundle icicle)
  {
    super.onCreate(icicle);
    setContentView(R.layout.lastfm);

    Intent i = getIntent();
    if (i.getData() == null)
      i.setData(Five.Music.Playlists.CONTENT_URI);

    String action = i.getAction();
    if (action == null)
      i.setAction(Intent.ACTION_VIEW);
    else if (action.equals(Intent.ACTION_CREATE_SHORTCUT) == true)
      mCreateShortcut = true;

    Cursor c = getCursor(null, null);

    mList = (ListView)findViewById(android.R.id.list);

    mAdapter = new EfficientCursorAdapter(this,
      R.layout.playlist_item, c,
      new String[] { Five.Music.Playlists.NAME, Five.Music.Playlists.NUM_SONGS },
      new int[] { R.id.playlist_name, R.id.playlist_counts });

    mAdapter.setViewBinder(this);
    mList.setAdapter(mAdapter);
    mList.setOnItemClickListener(mItemClick);
  }
  
  @Override
  public void onDestroy()
  {
    mAdapter.changeCursor(null);
    super.onDestroy();
  }

  public boolean setViewValue(View v, Cursor c, int col)
  {
    if (QUERY_FIELDS[col] == Five.Music.Playlists.NUM_SONGS)
    {
      int nsongs = c.getInt(col);
      
      StringBuilder b = new StringBuilder();
      
      b.append(nsongs).append(" song");
      if (nsongs != 1)
        b.append('s');
      
      ((TextView)v).setText(b.toString());
      
      return true;
    }
    
    return false;
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu)
  {
    super.onCreateOptionsMenu(menu);
    
    if (mCreateShortcut == false)
    {
      menu.add(0, MENU_RETURN_LIBRARY, 0, R.string.return_library)
      .setIcon(R.drawable.ic_menu_music_library);
      menu.add(0, MENU_GOTO_PLAYER, 0, R.string.goto_player)
      .setIcon(R.drawable.ic_menu_playback);
    }
    
    return true;
  }

  @Override
  public boolean onPrepareOptionsMenu(Menu menu)
  {
//    menu.findItem(MENU_GOTO_PLAYER).setVisible(mSongPlaying >= 0);
    return super.onPrepareOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item)
  {
    switch (item.getItemId())
    {
    case MENU_RETURN_LIBRARY:
      Main.show(this);
      return true;
    case MENU_GOTO_PLAYER:
      Player.show(this);
      return true;
    }

    return false;
  }
    
  private OnItemClickListener mItemClick = new OnItemClickListener()
  {
    public void onItemClick(AdapterView<?> av, View v, int pos, long id)
    {
      Intent i = getIntent();

      Intent chosen = new Intent();

      chosen.setDataAndType(i.getData().buildUpon()
        .appendEncodedPath(String.valueOf(id)).build(),
        Five.Music.Playlists.CONTENT_ITEM_TYPE);

      Cursor c = (Cursor)av.getItemAtPosition(pos);

      chosen.putExtra("playlistId", id);
      
      String playlistName =
        c.getString(c.getColumnIndexOrThrow(Five.Music.Playlists.NAME));
      chosen.putExtra("playlistName", playlistName);

      chosen.setAction(Intent.ACTION_VIEW);
      
      if (mCreateShortcut == true)
      {
        Intent shortcut = new Intent();
        shortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, chosen);
        shortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, playlistName);
        shortcut.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
          Intent.ShortcutIconResource.fromContext(PlaylistList.this,
            R.drawable.ic_launcher_shortcut_music_playlist));

              setResult(RESULT_OK, shortcut);
              finish();
      }
      else
      {
        chosen.setClass(PlaylistList.this, SongList.class);
        startActivity(chosen);
      }
    }
  };
}