From 3bb3429670f29bbf82424ce234d914201eee2d3f Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 17 Jul 2020 15:08:09 +0200
Subject: Restore use of virtual Fl_Window::resize() to be notified when window
 moves.

A previous commit c66caf5dce9331fd3e011873711a768adb28cf9d
"Simpler implementation of Fl_Cocoa_Window_Driver::resize()"
made that Fl_Window::resize() was no longer called by FLTK when a
window is moved. This prevented the undocumented practice of
re-implementing the virtual function Fl_Window::resize() and use it
as a way to get a notification that a window was moved.
---
 src/Fl_cocoa.mm | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 039fd7224..efbccc820 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -1216,9 +1216,7 @@ static FLWindowDelegate *flwindowdelegate_instance = nil;
     main_screen_height = CGDisplayBounds(CGMainDisplayID()).size.height;
     int X, Y;
     CocoatoFLTK(window, X, Y);
-    Fl_Cocoa_Window_Driver *d = Fl_Cocoa_Window_Driver::driver(window);
-    d->x(X);
-    d->y(Y);
+    if (window->x() != X || window->y() != Y) window->position(X, Y);
     update_e_xy_and_e_xy_root(nsw);
     // at least since MacOS 10.9: OS moves subwindows contained in a moved window
     // setSubwindowFrame is no longer necessary.
-- 
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