beos/InterfaceWindow.cpp: fixed a deadlock + pause button not responding

modules/gui/beos/InterfaceWindow.cpp

@@ -441,25 +441,25 @@ void InterfaceWindow::MessageReceived( BMessage * p_message )
             break;
 
         case START_PLAYBACK:
-            /*  starts playing in normal mode */
-    
         case PAUSE_PLAYBACK:
-            if( p_input )
         {
-                if( var_GetInteger( p_input, "state" ) == PAUSE_S )
-                {
-                    if( p_playlist )
+            vlc_value_t val;
+            val.i_int = PLAYING_S;
+            if( p_input )
             {
-                        playlist_Play( p_playlist );
+                var_Get( p_input, "state", &val );
             }
+            if( p_input && val.i_int != PAUSE_S )
+            {
+                val.i_int = PAUSE_S;
+                var_Set( p_input, "state", val );
             }
             else
             {
-                    var_SetInteger( p_input, "state", PAUSE_S );
-                }
+                playlist_Play( p_playlist );
             }
             break;
-    
+        }
         case HEIGHTH_PLAY:
             if( p_input )
             {
@@ -714,11 +714,7 @@ void InterfaceWindow::MessageReceived( BMessage * p_message )
 
             if( b_remove && p_playlist )
             {
-                /* Empty playlist */
-                while( p_playlist->i_size > 0 )
-                {
-                    playlist_Delete( p_playlist, 0 );
-                }
+                playlist_Clear( p_playlist );
             }
 
             entry_ref ref;
@@ -858,7 +854,7 @@ void InterfaceWindow::UpdateInterface()
 
         _SetMenusEnabled( false );
 
-        if( !p_playlist || p_playlist->i_size <= 0 )
+        if( !playlist_IsEmpty( p_playlist ) )
         {
             p_mediaControl->SetProgress( 0 );