macosx: refinements of minimized view behaviour

- Fix wrong playlist resize
- Minimize view state is now retained from start up to stop of video.
  Using the playlist button will result in the playlist to show up, but it
  will be always hidden when video finally stops.
- Minimize view state is exited when the user uses alt to go back to normal view.

close #9722

modules/gui/macosx/MainWindow.m

@@ -412,17 +412,21 @@ static VLCMainWindow *_o_sharedInstance = nil;
 
 - (void)resizePlaylistAfterCollapse
 {
+    // no animation here since we might be in the middle of another resize animation
     NSRect plrect;
     plrect = [o_playlist_table frame];
-    plrect.size.height = i_lastSplitViewHeight - 20.0; // actual pl top bar height, which differs from its frame
-    [[o_playlist_table animator] setFrame: plrect];
+    plrect.size.height = [o_split_view frame].size.height - 20.0; // actual pl top bar height, which differs from its frame
+    [o_playlist_table setFrame: plrect];
+    [o_playlist_table setNeedsDisplay: YES];
 
     NSRect rightSplitRect;
     rightSplitRect = [o_right_split_view frame];
     plrect = [o_dropzone_box frame];
     plrect.origin.x = (rightSplitRect.size.width - plrect.size.width) / 2;
     plrect.origin.y = (rightSplitRect.size.height - plrect.size.height) / 2;
-    [[o_dropzone_box animator] setFrame: plrect];
+    [o_dropzone_view setFrame: [o_playlist_table frame]];
+    [o_dropzone_box setFrame: plrect];
+    [o_dropzone_view setNeedsDisplay: YES];
 }
 
 - (void)makeSplitViewVisible
@@ -473,6 +477,21 @@ static VLCMainWindow *_o_sharedInstance = nil;
 // only exception for an controls bar button action
 - (IBAction)togglePlaylist:(id)sender
 {
+    // Beware, this code is really ugly
+
+    /*
+     * sender can be:
+     * - nil if video playback is started or stopped
+     * - NSNumber with 1 if playlist item changes --> show video view
+     * - sender object if triggered through menu item or button
+     */
+    BOOL b_unhide_videoview = NO;
+    if([sender isKindOfClass: [NSNumber class]] && [sender intValue] == 1) {
+        b_unhide_videoview = YES;
+        sender = nil;
+    }
+
+    msg_Dbg(VLCIntf, "toggle playlist from state: removed splitview %i, minimized view %i. Sender is %p, unhide video view %i", b_splitview_removed, b_minimized_view, sender, b_unhide_videoview);
     if (![self isVisible] && sender != nil) {
         [self makeKeyAndOrderFront: sender];
         return;
@@ -493,12 +512,15 @@ static VLCMainWindow *_o_sharedInstance = nil;
     if (!(b_nativeFullscreenMode && b_fullscreen) && !b_splitview_removed && ((b_have_alt_key && b_activeVideo)
                                                                               || (b_nonembedded && sender != nil)
                                                                               || (!b_activeVideo && sender != nil)
-                                                                              || b_minimized_view))
+                                                                              || (b_minimized_view && sender == nil && b_unhide_videoview == NO))) {
+        // for starting playback, window is resized through resized events
+        // for stopping playback, resize through reset to previous frame
         [self hideSplitView: sender != nil];
-    else {
+        b_minimized_view = NO;
+    } else {
         if (b_splitview_removed) {
             if (!b_nonembedded || (sender != nil && b_nonembedded))
-                [self showSplitView: sender != nil];
+                [self showSplitView: sender != nil || b_unhide_videoview];
 
             if (sender == nil)
                 b_minimized_view = YES;
@@ -520,6 +542,8 @@ static VLCMainWindow *_o_sharedInstance = nil;
             [o_video_view setHidden: YES];
         }
     }
+
+    msg_Dbg(VLCIntf, "toggle playlist to state: removed splitview %i, minimized view %i", b_splitview_removed, b_minimized_view);
 }
 
 - (IBAction)dropzoneButtonAction:(id)sender
@@ -758,8 +782,15 @@ static VLCMainWindow *_o_sharedInstance = nil;
     BOOL b_videoPlayback = [[VLCMain sharedInstance] activeVideoPlayback];
         
     if (!b_videoPlayback) {
-        if (!b_nonembedded && (!b_nativeFullscreenMode || (b_nativeFullscreenMode && !b_fullscreen)) && frameBeforePlayback.size.width > 0 && frameBeforePlayback.size.height > 0)
-            [[self animator] setFrame:frameBeforePlayback display:YES];
+        if (!b_nonembedded && (!b_nativeFullscreenMode || (b_nativeFullscreenMode && !b_fullscreen)) && frameBeforePlayback.size.width > 0 && frameBeforePlayback.size.height > 0) {
+
+            // only resize back to minimum view of this is still desired final state
+            float f_threshold_height = f_min_video_height + [o_controls_bar height];
+            if(frameBeforePlayback.size.height > f_threshold_height || b_minimized_view)
+                [[self animator] setFrame:frameBeforePlayback display:YES];
+        }
+
+        frameBeforePlayback = NSMakeRect(0, 0, 0, 0);
 
         // update fs button to reflect state for next startup
         if (var_InheritBool(VLCIntf, "fullscreen") || var_GetBool(pl_Get(VLCIntf), "fullscreen")) {

modules/gui/macosx/intf.m

@@ -1288,8 +1288,11 @@ static VLCMain *_o_sharedMainInstance = nil;
             var_AddCallback(p_current_input, "intf-event", InputEvent, [VLCMain sharedInstance]);
             [self playbackStatusUpdated];
             [o_mainmenu setRateControlsEnabled: YES];
-            if ([self activeVideoPlayback] && [[o_mainwindow videoView] isHidden])
-                [o_mainwindow performSelectorOnMainThread:@selector(togglePlaylist:) withObject: nil waitUntilDone:NO];
+
+            if ([self activeVideoPlayback] && [[o_mainwindow videoView] isHidden]) {
+                [o_mainwindow performSelectorOnMainThread:@selector(togglePlaylist:) withObject: [NSNumber numberWithInt:1] waitUntilDone:NO];
+            }
+
             p_input_changed = vlc_object_hold(p_current_input);
         }
     }