From 227eda1d0998b3b60130edfaed16750135091966 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <m@mitchellh.com>
Date: Sun, 6 Oct 2024 15:09:37 -1000
Subject: [PATCH] macos: notify core of mouse exit

---
 macos/Sources/Ghostty/SurfaceView_AppKit.swift | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/macos/Sources/Ghostty/SurfaceView_AppKit.swift b/macos/Sources/Ghostty/SurfaceView_AppKit.swift
index 592611f32..1e9708f0f 100644
--- a/macos/Sources/Ghostty/SurfaceView_AppKit.swift
+++ b/macos/Sources/Ghostty/SurfaceView_AppKit.swift
@@ -354,6 +354,7 @@ extension Ghostty {
             addTrackingArea(NSTrackingArea(
                 rect: frame,
                 options: [
+                    .mouseEnteredAndExited,
                     .mouseMoved,
 
                     // Only send mouse events that happen in our visible (not obscured) rect
@@ -486,6 +487,14 @@ extension Ghostty {
             super.rightMouseUp(with: event)
         }
 
+        override func mouseExited(with event: NSEvent) {
+            guard let surface = self.surface else { return }
+
+            // Negative values indicate cursor has left the viewport
+            let mods = Ghostty.ghosttyMods(event.modifierFlags)
+            ghostty_surface_mouse_pos(surface, -1, -1, mods)
+        }
+
         override func mouseMoved(with event: NSEvent) {
             guard let surface = self.surface else { return }