From 5839817c51f819ba39ee67c315bcc49f25770e79 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 24 Jul 2020 18:41:44 +0200
Subject: Fix problem when calling Fl_Window::fullscreen_off() in certain
 circumstances.

The problem was discovered in fltk.coredev "Crashing regression in MacOS code"
---
 src/Fl_cocoa.mm | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index efbccc820..3aeea9e9c 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -3190,6 +3190,11 @@ void Fl_Cocoa_Window_Driver::fullscreen_off(int X, int Y, int W, int H) {
     [nswin setStyleMask:calc_win_style(pWindow)]; //10.6
     restore_window_title_and_icon(pWindow, icon_image);
     pWindow->resize(X, Y, W, H);
+    // at least under macOS 10.15.5-6, NSViewFrameDidChangeNotification is not sent
+    // if the dock is at bottom (but is sent if the dock is at left!)
+    NSNotification *notif = [NSNotification notificationWithName:NSViewFrameDidChangeNotification
+                                                          object:[nswin contentView]];
+    [[FLWindowDelegate singleInstance] view_did_resize:notif];
   } else
 #endif
   {
-- 
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