chore: update logic to use unified winproto

src/apprt/gtk/Surface.zig

@@ -857,30 +857,27 @@ pub fn setInitialWindowSize(self: *const Surface, width: u32, height: u32) !void
     );
 
     // If the current WM doesn't support _NET_WM_STATE, we shouldn't try to set it.
-    const gdk_surface = c.gtk_native_get_surface(@ptrCast(window.window));
-    if (!x11.should_use_net_wm_state(gdk_surface)) {
+    const winproto = &(window.winproto orelse return);
+    if (!winproto.shouldSetWMState()) {
         log.warn("current WM does not support _NET_WM_STATE", .{});
         return;
     }
 
+    const gdk_surface = c.gtk_native_get_surface(@ptrCast(window.window));
     const workarea = self.getWorkarea(gdk_surface) orelse return;
     if (height >= workarea.height and width >= workarea.width) {
         c.gtk_window_maximize(@ptrCast(window.window));
     }
 }
 
-fn getWorkarea(self: *const Surface, gdk_surface: ?*c.GdkSurface) ?c.GdkRectangle {
+fn getWorkarea(_: *const Surface, gdk_surface: ?*c.GdkSurface) ?c.GdkRectangle {
     const monitor = c.gdk_display_get_monitor_at_surface(
         c.gdk_display_get_default(),
         gdk_surface,
     );
 
     var workarea: c.GdkRectangle = std.mem.zeroes(c.GdkRectangle);
-    if (self.app.wayland != null) {
-        c.gdk_monitor_get_geometry(monitor, &workarea);
-    } else {
-        c.gdk_x11_monitor_get_workarea(monitor, &workarea);
-    }
+    c.gdk_x11_monitor_get_workarea(monitor, &workarea);
 
     return workarea;
 }

src/apprt/gtk/Window.zig

@@ -613,14 +613,16 @@ fn gtkWindowNotifyDecorated(
 fn gtkWindowNotifyMaximized(
     window: *c.GtkWindow,
     _: *c.GParamSpec,
-    _: ?*anyopaque,
+    ud: ?*anyopaque,
 ) callconv(.C) void {
-    const gdk_surface = c.gtk_native_get_surface(@ptrCast(window));
-    if (!winproto.x11.should_use_net_wm_state(gdk_surface)) {
+    // If the current WM doesn't support _NET_WM_STATE, we shouldn't try to set it.
+    const self: *winproto.Window = @ptrCast(@alignCast(ud orelse return));
+    if (!self.shouldSetWMState()) {
         log.warn("current WM does not support _NET_WM_STATE", .{});
         return;
     }
 
+    const gdk_surface = c.gtk_native_get_surface(@ptrCast(window));
     const xdisplay = c.gdk_x11_display_get_xdisplay(c.gdk_surface_get_display(gdk_surface)) orelse return;
 
     // https://tronche.com/gui/x/xlib/events/client-communication/client-message.html#XClientMessageEvent

src/apprt/gtk/winproto.zig

@@ -125,4 +125,10 @@ pub const Window = union(Protocol) {
             inline else => |*v| try v.syncAppearance(),
         }
     }
+
+    pub fn shouldSetWMState(self: *Window) bool {
+        return switch (self.*) {
+            inline else => |*v| v.shouldSetWMState(),
+        };
+    }
 };

src/apprt/gtk/winproto/noop.zig

@@ -53,4 +53,8 @@ pub const Window = struct {
     pub fn resizeEvent(_: *Window) !void {}
 
     pub fn syncAppearance(_: *Window) !void {}
+
+    pub fn shouldSetWMState(_: *Window) bool {
+        return false;
+    }
 };

src/apprt/gtk/winproto/wayland.zig

@@ -208,4 +208,8 @@ pub const Window = struct {
             }
         }
     }
+
+    pub fn shouldSetWMState(_: *Window) bool {
+        return false; // Wayland doesn't use _NET_WM_STATE
+    }
 };

src/apprt/gtk/winproto/x11.zig

@@ -283,6 +283,27 @@ pub const Window = struct {
             );
         }
     }
+
+    /// Checks if we should set the _NET_WM_STATE property on the window.
+    ///
+    /// To be truthy, we must have a valid X11 surface and the window manager must
+    /// support _NET_WM_STATE.
+    pub fn shouldSetWMState(self: *Window) bool {
+        const gdk_surface = c.gtk_native_get_surface(@ptrCast(self.gtk_window)) orelse return false;
+
+        // Check we have a valid X11 surface
+        if (c.g_type_check_instance_is_a(
+            @ptrCast(@alignCast(gdk_surface)),
+            c.gdk_x11_surface_get_type(),
+        ) == 0) return false;
+
+        // Check the window manager supports _NET_WM_STATE
+        return c.XInternAtom(
+            c.gdk_x11_display_get_xdisplay(c.gdk_surface_get_display(gdk_surface)),
+            "_NET_WM_STATE",
+            1,
+        ) != 0;
+    }
 };
 
 const Region = extern struct {

src/apprt/gtk/x11.zig

@@ -22,17 +22,6 @@ pub fn is_current_display_server() bool {
     return is_display(display);
 }
 
-/// Returns true if we have a valid X11 surface and the current WM supports _NET_WM_STATE.
-pub fn should_use_net_wm_state(surface: ?*c.GdkSurface) bool {
-    if (comptime !build_options.x11) return false;
-    if (c.g_type_check_instance_is_a(
-        @ptrCast(@alignCast(surface)),
-        c.gdk_x11_surface_get_type(),
-    ) == 0) return false;
-
-    return c.XInternAtom(c.gdk_x11_display_get_xdisplay(c.gdk_surface_get_display(surface)), "_NET_WM_STATE", 1) != 0;
-}
-
 pub const Xkb = struct {
     base_event_code: c_int,