macosx: don't show the 'hey, we found an update' dialog when playing a video

modules/gui/macosx/intf.m

@@ -754,6 +754,8 @@ static VLCMain *_o_sharedMainInstance = nil;
 
     [NSBundle loadNibNamed:@"MainWindow" owner: self];
     [o_mainwindow makeKeyAndOrderFront:nil];
+
+    [[SUUpdater sharedUpdater] setDelegate:self];
 }
 
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification
@@ -936,6 +938,15 @@ static VLCMain *_o_sharedMainInstance = nil;
     [[VLCCoreInteraction sharedInstance] stop];
 }
 
+/* don't be enthusiastic about an update if we currently play a video */
+- (BOOL)updaterMayCheckForUpdates:(SUUpdater *)bundle
+{
+    if ([self activeVideoPlayback])
+        return NO;
+
+    return YES;
+}
+
 #pragma mark -
 #pragma mark Media Key support