macos: close surface works

macos/Sources/Ghostty/Ghostty.SplitView.swift

@@ -7,10 +7,11 @@ extension Ghostty {
     /// split direction by splitting the terminal.
     struct TerminalSplit: View {
         @Environment(\.ghosttyApp) private var app
+        let onClose: (() -> Void)?
         
         var body: some View {
             if let app = app {
-                TerminalSplitRoot(app: app)
+                TerminalSplitRoot(app: app, onClose: onClose)
             }
         }
     }
@@ -78,13 +79,13 @@ extension Ghostty {
     /// one of these in a split tree.
     private struct TerminalSplitRoot: View {
         @State private var node: SplitNode
-        
-        /// This is an ignored value because at the root we can't close.
-        @State private var ignoredRequestClose: Bool = false
+        @State private var requestClose: Bool = false
+        let onClose: (() -> Void)?
         
         @FocusedValue(\.ghosttySurfaceTitle) private var surfaceTitle: String?
         
-        init(app: ghostty_app_t) {
+        init(app: ghostty_app_t, onClose: (() ->Void)? = nil) {
+            self.onClose = onClose
             _node = State(wrappedValue: SplitNode.noSplit(.init(app)))
         }
         
@@ -92,7 +93,12 @@ extension Ghostty {
             ZStack {
                 switch (node) {
                 case .noSplit(let leaf):
-                    TerminalSplitLeaf(leaf: leaf, node: $node, requestClose: $ignoredRequestClose)
+                    TerminalSplitLeaf(leaf: leaf, node: $node, requestClose: $requestClose)
+                        .onChange(of: requestClose) { value in
+                            guard value else { return }
+                            guard let onClose = self.onClose else { return }
+                            onClose()
+                        }
                     
                 case .horizontal(let container):
                     TerminalSplitContainer(direction: .horizontal, node: $node, container: container)

macos/Sources/GhosttyApp.swift

@@ -24,15 +24,15 @@ struct GhosttyApp: App {
             case .error:
                 ErrorView()
             case .ready:
-                Ghostty.TerminalSplit()
+                Ghostty.TerminalSplit(onClose: Self.closeWindow)
                     .ghosttyApp(ghostty.app!)
             }
         }.commands {
             CommandGroup(after: .newItem) {
-                Button("New Tab", action: newTab).keyboardShortcut("t", modifiers: [.command])
+                Button("New Tab", action: Self.newTab).keyboardShortcut("t", modifiers: [.command])
                 Divider()
                 Button("Close", action: close).keyboardShortcut("w", modifiers: [.command])
-                Button("Close Window", action: closeWindow).keyboardShortcut("w", modifiers: [.command, .shift])
+                Button("Close Window", action: Self.closeWindow).keyboardShortcut("w", modifiers: [.command, .shift])
              }
         }
         
@@ -42,7 +42,7 @@ struct GhosttyApp: App {
     }
     
     // Create a new tab in the currently active window
-    func newTab() {
+    static func newTab() {
         guard let currentWindow = NSApp.keyWindow else { return }
         guard let windowController = currentWindow.windowController else { return }
         windowController.newWindowForTab(nil)
@@ -51,16 +51,16 @@ struct GhosttyApp: App {
         }
     }
     
+    static func closeWindow() {
+        guard let currentWindow = NSApp.keyWindow else { return }
+        currentWindow.close()
+    }
+    
     func close() {
         guard let surfaceView = focusedSurface else { return }
         guard let surface = surfaceView.surface else { return }
         ghostty.requestClose(surface: surface)
     }
-    
-    func closeWindow() {
-        guard let currentWindow = NSApp.keyWindow else { return }
-        currentWindow.close()
-    }
 }
 
 class AppDelegate: NSObject, NSApplicationDelegate {

src/config.zig

@@ -278,9 +278,14 @@ pub const Config = struct {
         );
         try result.keybind.set.put(
             alloc,
-            .{ .key = .w, .mods = .{ .super = true, .shift = true } },
+            .{ .key = .w, .mods = .{ .super = true } },
             .{ .close_surface = {} },
         );
+        try result.keybind.set.put(
+            alloc,
+            .{ .key = .w, .mods = .{ .super = true, .shift = true } },
+            .{ .close_window = {} },
+        );
         try result.keybind.set.put(
             alloc,
             .{ .key = .t, .mods = .{ .super = true } },