package org.music.player;
import org.music.player.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.HandlerThread;
import android.os.Looper;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.Button;
/**
* The playlist activity where playlist songs can be viewed and reordered.
*/
public class PlaylistActivity extends Activity
implements View.OnClickListener
, AbsListView.OnItemClickListener
, DialogInterface.OnClickListener
{
/**
* The SongTimeline play mode corresponding to each
* LibraryActivity.ACTION_*
*/
private static final int[] MODE_FOR_ACTION =
{ SongTimeline.MODE_PLAY, SongTimeline.MODE_ENQUEUE, -1,
SongTimeline.MODE_PLAY_POS_FIRST, SongTimeline.MODE_ENQUEUE_POS_FIRST };
/**
* An event loop running on a worker thread.
*/
private Looper mLooper;
private DragListView mListView;
private PlaylistAdapter mAdapter;
/**
* The id of the playlist this activity is currently viewing.
*/
private long mPlaylistId;
/**
* The name of the playlist this activity is currently viewing.
*/
private String mPlaylistName;
/**
* If true, then playlists songs can be dragged to reorder.
*/
private boolean mEditing;
/**
* The item click action specified in the preferences.
*/
private int mDefaultAction;
/**
* The last action used from the context menu, used to implement
* LAST_USED_ACTION action.
*/
private int mLastAction = LibraryActivity.ACTION_PLAY;
private Button mEditButton;
private Button mDeleteButton;
@Override
public void onCreate(Bundle state)
{
super.onCreate(state);
HandlerThread thread = new HandlerThread(getClass().getName());
thread.start();
setContentView(R.layout.playlist_activity);
DragListView view = (DragListView)findViewById(R.id.list);
view.setOnItemClickListener(this);
view.setOnCreateContextMenuListener(this);
mListView = view;
View header = LayoutInflater.from(this).inflate(R.layout.playlist_buttons, null);
mEditButton = (Button)header.findViewById(R.id.edit);
mEditButton.setOnClickListener(this);
mDeleteButton = (Button)header.findViewById(R.id.delete);
mDeleteButton.setOnClickListener(this);
view.addHeaderView(header, null, false);
mLooper = thread.getLooper();
mAdapter = new PlaylistAdapter(this, mLooper);
view.setAdapter(mAdapter);
onNewIntent(getIntent());
}
@Override
public void onStart()
{
super.onStart();
SharedPreferences settings = PlaybackService.getSettings(this);
mDefaultAction = Integer.parseInt(settings.getString(PrefKeys.DEFAULT_PLAYLIST_ACTION, "0"));
}
@Override
public void onDestroy()
{
mLooper.quit();
super.onDestroy();
}
@Override
public void onNewIntent(Intent intent)
{
long id = intent.getLongExtra("playlist", 0);
String title = intent.getStringExtra("title");
mAdapter.setPlaylistId(id);
setTitle(title);
mPlaylistId = id;
mPlaylistName = title;
}
/**
* Enable or disable edit mode, which allows songs to be reordered and
* removed.
*
* @param editing True to enable edit mode.
*/
public void setEditing(boolean editing)
{
mListView.setEditable(editing);
mAdapter.setEditable(editing);
int visible = editing ? View.GONE : View.VISIBLE;
mDeleteButton.setVisibility(visible);
mEditButton.setText(editing ? R.string.done : R.string.edit);
mEditing = editing;
}
@Override
public void onClick(View view)
{
switch (view.getId()) {
case R.id.edit:
setEditing(!mEditing);
break;
case R.id.delete: {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
String message = getResources().getString(R.string.delete_playlist, mPlaylistName);
builder.setMessage(message);
builder.setPositiveButton(R.string.delete, this);
builder.setNegativeButton(R.string.cancel, this);
builder.show();
break;
}
}
}
private static final int MENU_PLAY = LibraryActivity.ACTION_PLAY;
private static final int MENU_PLAY_ALL = LibraryActivity.ACTION_PLAY_ALL;
private static final int MENU_ENQUEUE = LibraryActivity.ACTION_ENQUEUE;
private static final int MENU_ENQUEUE_ALL = LibraryActivity.ACTION_ENQUEUE_ALL;
private static final int MENU_REMOVE = -1;
@Override
public void onCreateContextMenu(ContextMenu menu, View listView, ContextMenu.ContextMenuInfo absInfo)
{
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)absInfo;
Intent intent = new Intent();
intent.putExtra("id", info.id);
intent.putExtra("position", info.position);
intent.putExtra("audioId", (Long)info.targetView.getTag());
menu.add(0, MENU_PLAY, 0, R.string.play).setIntent(intent);
menu.add(0, MENU_PLAY_ALL, 0, R.string.play_all).setIntent(intent);
menu.add(0, MENU_ENQUEUE, 0, R.string.enqueue).setIntent(intent);
menu.add(0, MENU_ENQUEUE_ALL, 0, R.string.enqueue_all).setIntent(intent);
menu.add(0, MENU_REMOVE, 0, R.string.remove).setIntent(intent);
}
@Override
public boolean onContextItemSelected(MenuItem item)
{
int itemId = item.getItemId();
Intent intent = item.getIntent();
int pos = intent.getIntExtra("position", -1);
if (itemId == MENU_REMOVE) {
mAdapter.remove(pos - mListView.getHeaderViewsCount());
} else {
performAction(itemId, pos, intent.getLongExtra("audioId", -1));
}
return true;
}
/**
* Perform the specified action on the adapter row with the given id and
* position.
*
* @param action One of LibraryActivity.ACTION_*.
* @param position The position in the adapter.
* @param audioId The id of the selected song, for PLAY/ENQUEUE.
*/
private void performAction(int action, int position, long audioId)
{
if (action == LibraryActivity.ACTION_LAST_USED)
action = mLastAction;
switch (action) {
case LibraryActivity.ACTION_PLAY:
case LibraryActivity.ACTION_ENQUEUE: {
QueryTask query = MediaUtils.buildMediaQuery(MediaUtils.TYPE_SONG, audioId, Song.FILLED_PROJECTION, null);
query.mode = MODE_FOR_ACTION[action];
PlaybackService.get(this).addSongs(query);
break;
}
case LibraryActivity.ACTION_PLAY_ALL:
case LibraryActivity.ACTION_ENQUEUE_ALL: {
QueryTask query = MediaUtils.buildPlaylistQuery(mPlaylistId, Song.FILLED_PLAYLIST_PROJECTION, null);
query.mode = MODE_FOR_ACTION[action];
query.data = position - mListView.getHeaderViewsCount();
PlaybackService.get(this).addSongs(query);
break;
}
}
mLastAction = action;
}
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id)
{
if (!mEditing && mDefaultAction != LibraryActivity.ACTION_DO_NOTHING) {
performAction(mDefaultAction, position, (Long)view.getTag());
}
}
@Override
public void onClick(DialogInterface dialog, int which)
{
if (which == DialogInterface.BUTTON_POSITIVE) {
Playlist.deletePlaylist(getContentResolver(), mPlaylistId);
finish();
}
dialog.dismiss();
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
if (item.getItemId() == android.R.id.home) {
finish();
return true;
} else {
return super.onOptionsItemSelected(item);
}
}
}