From 38b4790a89420b5b3f9c50e7025173301cd531d4 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sun, 21 Jul 2019 15:11:43 +0200
Subject: Implement enter and leave notifications on MacOS

---
 pugl/pugl_osx.m | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/pugl/pugl_osx.m b/pugl/pugl_osx.m
index 59f25b9..a283283 100644
--- a/pugl/pugl_osx.m
+++ b/pugl/pugl_osx.m
@@ -293,12 +293,34 @@ keySymToSpecial(PuglView* view, NSEvent* ev)
 	return [self convertPoint:[event locationInWindow] fromView:nil];
 }
 
-- (void) mouseEntered:(NSEvent*)theEvent
+static void
+handleCrossing(PuglOpenGLView* view, NSEvent* event, const PuglEventType type)
+{
+	const NSPoint           wloc = [view eventLocation:event];
+	const NSPoint           rloc = [NSEvent mouseLocation];
+	const PuglEventCrossing ev   =  {
+		type,
+		view->puglview,
+		0,
+		[event timestamp],
+		wloc.x,
+		view->puglview->height - wloc.y,
+		rloc.x,
+		[[NSScreen mainScreen] frame].size.height - rloc.y,
+		getModifiers(view->puglview, event),
+		PUGL_CROSSING_NORMAL
+	};
+	puglDispatchEvent(view->puglview, (const PuglEvent*)&ev);
+}
+
+- (void) mouseEntered:(NSEvent*)event
 {
+	handleCrossing(self, event, PUGL_ENTER_NOTIFY);
 }
 
-- (void) mouseExited:(NSEvent*)theEvent
+- (void) mouseExited:(NSEvent*)event
 {
+	handleCrossing(self, event, PUGL_LEAVE_NOTIFY);
 }
 
 - (void) mouseMoved:(NSEvent*)event
-- 
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