macosx: fix fullscreen set by vout only (e.g. over http interface)

close #7117
(cherry picked from commit 6b7c0c9fab5394dceaf483381ecd297a40947152)
Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

modules/gui/macosx/intf.h

@@ -180,6 +180,7 @@ struct intf_sys_t
 - (unsigned int)VLCModifiersToCocoa:(NSString *)theString;
 - (void)updateCurrentlyUsedHotkeys;
 - (void)fullscreenChanged;
+- (void)checkFullscreenChange:(NSNumber *)o_full;
 - (void)PlaylistItemChanged;
 - (void)playbackStatusUpdated;
 - (void)sendDistributedNotificationWithUpdatedPlaybackStatus;

modules/gui/macosx/intf.m

@@ -168,8 +168,8 @@ static int WindowControl( vout_window_t *p_wnd, int i_query, va_list args )
     else if( i_query == VOUT_WINDOW_SET_FULLSCREEN )
     {
         NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
-        // we already have our playlist "fullscreen" callback, do not repeat the same call here
-        //[[VLCMain sharedInstance] performSelectorOnMainThread:@selector(fullscreenChanged) withObject: nil waitUntilDone: NO];
+        int i_full = va_arg( args, int );
+        [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(checkFullscreenChange:) withObject:[NSNumber numberWithInt: i_full] waitUntilDone:NO];
         [o_pool release];
     }
     else
@@ -1464,6 +1464,15 @@ unsigned int CocoaKeyToVLC( unichar i_key )
     }
 }
 
+- (void)checkFullscreenChange:(NSNumber *)o_full
+{
+    BOOL b_full = [o_full boolValue];    
+    if( p_intf && !var_GetBool( pl_Get( p_intf ), "fullscreen" ) != !b_full )
+    {
+        var_SetBool( pl_Get(p_intf), "fullscreen", b_full );        
+    }
+}
+
 - (void)PlaylistItemChanged
 {
     if( p_current_input && ( p_current_input->b_dead || !vlc_object_alive( p_current_input ) ))