Add menu actions to playlist detail activity

app/src/main/java/com/kabouzeid/gramophone/ui/activities/PlaylistDetailActivity.java

@@ -23,10 +23,11 @@ import com.kabouzeid.gramophone.R;
 import com.kabouzeid.gramophone.adapter.song.PlaylistSongAdapter;
 import com.kabouzeid.gramophone.adapter.song.OrderablePlaylistSongAdapter;
 import com.kabouzeid.gramophone.adapter.song.SongAdapter;
-import com.kabouzeid.gramophone.dialogs.SleepTimerDialog;
 import com.kabouzeid.gramophone.helper.MusicPlayerRemote;
+import com.kabouzeid.gramophone.helper.menu.PlaylistMenuHelper;
 import com.kabouzeid.gramophone.interfaces.CabHolder;
 import com.kabouzeid.gramophone.interfaces.LoaderIds;
+import com.kabouzeid.gramophone.loader.PlaylistLoader;
 import com.kabouzeid.gramophone.loader.PlaylistSongLoader;
 import com.kabouzeid.gramophone.misc.WrappedAsyncTaskLoader;
 import com.kabouzeid.gramophone.model.AbsCustomPlaylist;
@@ -34,7 +35,6 @@ import com.kabouzeid.gramophone.model.Playlist;
 import com.kabouzeid.gramophone.model.PlaylistSong;
 import com.kabouzeid.gramophone.model.Song;
 import com.kabouzeid.gramophone.ui.activities.base.AbsSlidingMusicPanelActivity;
-import com.kabouzeid.gramophone.util.NavigationUtil;
 import com.kabouzeid.gramophone.util.PhonographColorUtil;
 import com.kabouzeid.gramophone.util.PlaylistsUtil;
 import com.kabouzeid.gramophone.util.ViewUtil;
@@ -84,7 +84,7 @@ public class PlaylistDetailActivity extends AbsSlidingMusicPanelActivity impleme
 
         setUpRecyclerView();
 
-        setUpToolBar();
+        setUpToolbar();
 
         getSupportLoaderManager().initLoader(LOADER_ID, null, this);
     }
@@ -130,12 +130,17 @@ public class PlaylistDetailActivity extends AbsSlidingMusicPanelActivity impleme
         });
     }
 
-    private void setUpToolBar() {
+    private void setUpToolbar() {
         toolbar.setBackgroundColor(ThemeStore.primaryColor(this));
         setSupportActionBar(toolbar);
         //noinspection ConstantConditions
-        getSupportActionBar().setTitle(playlist.name);
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        setToolbarTitle(playlist.name);
+    }
+
+    private void setToolbarTitle(String title) {
+        //noinspection ConstantConditions
+        getSupportActionBar().setTitle(title);
     }
 
     @Override
@@ -148,20 +153,14 @@ public class PlaylistDetailActivity extends AbsSlidingMusicPanelActivity impleme
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         int id = item.getItemId();
         switch (id) {
-            case R.id.action_sleep_timer:
-                new SleepTimerDialog().show(getSupportFragmentManager(), "SET_SLEEP_TIMER");
-                return true;
             case R.id.action_shuffle_playlist:
                 MusicPlayerRemote.openAndShuffleQueue(adapter.getDataSet(), true);
                 return true;
-            case R.id.action_equalizer:
-                NavigationUtil.openEqualizer(this);
-                return true;
             case android.R.id.home:
                 onBackPressed();
                 return true;
         }
-        return super.onOptionsItemSelected(item);
+        return PlaylistMenuHelper.handleMenuClick(this, playlist, item);
     }
 
     @NonNull
@@ -188,6 +187,20 @@ public class PlaylistDetailActivity extends AbsSlidingMusicPanelActivity impleme
     @Override
     public void onMediaStoreChanged() {
         super.onMediaStoreChanged();
+
+        // Playlist deleted
+        if (!PlaylistsUtil.doesPlaylistExist(this, playlist.id)) {
+            onBackPressed();
+            return;
+        }
+
+        // Playlist renamed
+        final String playlistName = PlaylistsUtil.getNameForPlaylist(this, playlist.id);
+        if (!playlistName.equals(playlist.name)) {
+            playlist = PlaylistLoader.getPlaylist(this, playlist.id);
+            setToolbarTitle(playlist.name);
+        }
+
         getSupportLoaderManager().restartLoader(LOADER_ID, null, this);
     }
 

app/src/main/java/com/kabouzeid/gramophone/util/PlaylistsUtil.java

@@ -30,6 +30,23 @@ import static android.provider.MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI;
  */
 public class PlaylistsUtil {
 
+    public static boolean doesPlaylistExist(@NonNull final Context context, final int playlistId) {
+        if (playlistId == -1) {
+            return false;
+        }
+
+        Cursor cursor = context.getContentResolver().query(
+                MediaStore.Audio.Playlists.Members.getContentUri("external", playlistId),
+                new String[]{}, null, null, null);
+
+        if (cursor == null || cursor.getCount() == 0) {
+            return false;
+        }
+
+        cursor.close();
+        return true;
+    }
+
     public static int createPlaylist(@NonNull final Context context, @Nullable final String name) {
         int id = -1;
         if (name != null && name.length() > 0) {
@@ -50,8 +67,12 @@ public class PlaylistsUtil {
                         id = Integer.parseInt(uri.getLastPathSegment());
                     }
                 } else {
+                    // Playlist exists
                     if (cursor.moveToFirst()) {
-                        id = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Playlists._ID));
+                        Toast.makeText(context, context.getResources().getString(
+                                R.string.playlist_exists, name), Toast.LENGTH_SHORT).show();
+                        cursor.close();
+                        return -1;
                     }
                 }
                 if (cursor != null) {
@@ -79,6 +100,7 @@ public class PlaylistsUtil {
         selection.append(")");
         try {
             context.getContentResolver().delete(EXTERNAL_CONTENT_URI, selection.toString(), null);
+            context.getContentResolver().notifyChange(Uri.parse("content://media"), null);
         } catch (SecurityException ignored) {
         }
     }

app/src/main/res/menu/menu_playlist_detail.xml

@@ -10,14 +10,24 @@
         app:showAsAction="ifRoom" />
 
     <item
-        android:id="@+id/action_sleep_timer"
-        android:title="@string/action_sleep_timer"
+        android:id="@+id/action_play"
+        android:title="@string/action_play"
         app:showAsAction="never" />
-
     <item
-        android:id="@+id/action_equalizer"
-        android:orderInCategory="99"
-        android:title="@string/equalizer"
+        android:id="@+id/action_add_to_current_playing"
+        android:title="@string/action_add_to_playing_queue"
+        app:showAsAction="never" />
+    <item
+        android:id="@+id/action_rename_playlist"
+        android:title="@string/action_rename"
+        app:showAsAction="never" />
+    <item
+        android:id="@+id/action_delete_playlist"
+        android:title="@string/action_delete"
+        app:showAsAction="never" />
+    <item
+        android:id="@+id/action_save_playlist"
+        android:title="@string/save_playlist_title"
         app:showAsAction="never" />
 
 </menu>

app/src/main/res/values/strings.xml

@@ -71,6 +71,7 @@
     <string name="inserted_x_songs_into_playlist_x">Inserted %1$d songs into the playlist %2$s.</string>
     <string name="created_playlist_x">Created playlist %1$s.</string>
     <string name="deleted_x_songs">Deleted %1$d songs.</string>
+    <string name="playlist_exists">Playlist %1$s already exists.</string>
     <string name="could_not_create_playlist">Couldn\u2019t create playlist.</string>
     <string name="delete_playlist_x"><![CDATA[Delete the playlist <b>%1$s</b>?]]></string>
     <string name="clear_playlist_x"><![CDATA[Clear the playlist <b>%1$s</b>? This can\u2019t be undone!]]></string>