macosx/fspanel: allow continued clicks on the backward/forward buttons like we...

macosx/fspanel: allow continued clicks on the backward/forward buttons like we do in windowed mode (close #7258)
(cherry picked from commit 14cc1eed64be69186f1076136fcc5154123b5b36)

modules/gui/macosx/fspanel.h

@@ -80,6 +80,8 @@
     NSTextField *o_streamTitle_txt, *o_streamPosition_txt;
     NSSlider *o_fs_timeSlider, *o_fs_volumeSlider;
     NSImage *o_background_img, *o_vol_sld_img, *o_vol_mute_img, *o_vol_max_img, *o_time_sld_img;
+    NSTimeInterval last_fwd_event;
+    NSTimeInterval last_bwd_event;
 }
 - (id)initWithFrame: (NSRect)frameRect;
 - (void)drawRect: (NSRect)rect;

modules/gui/macosx/fspanel.m

@@ -429,6 +429,8 @@
 /*
     addButton( o_button, @"image (off state)", @"image (on state)", 38, 51, something );
  */
+    [o_fwd setContinuous:YES];
+    [o_bwd setContinuous:YES];
 
     /* time slider */
     s_rc = [self frame];
@@ -543,12 +545,22 @@
 
 - (IBAction)forward:(id)sender
 {
-    [[VLCCoreInteraction sharedInstance] forward];
+    if (([NSDate timeIntervalSinceReferenceDate] - last_fwd_event) > 0.16 )
+    {
+        // we just skipped 4 "continous" events, otherwise we are too fast
+        [[VLCCoreInteraction sharedInstance] forwardExtraShort];
+        last_fwd_event = [NSDate timeIntervalSinceReferenceDate];
+    }
 }
 
 - (IBAction)backward:(id)sender
 {
-    [[VLCCoreInteraction sharedInstance] backward];
+    if (([NSDate timeIntervalSinceReferenceDate] - last_bwd_event) > 0.16 )
+    {
+        // we just skipped 4 "continous" events, otherwise we are too fast
+        [[VLCCoreInteraction sharedInstance] backwardExtraShort];
+        last_bwd_event = [NSDate timeIntervalSinceReferenceDate];
+    }
 }
 
 - (IBAction)prev:(id)sender