apprt/gtk-ng: toggle tab overview

src/apprt/gtk-ng/class/application.zig

@@ -537,6 +537,7 @@ pub const Application = extern struct {
 
             .toggle_maximize => Action.toggleMaximize(target),
             .toggle_fullscreen => Action.toggleFullscreen(target),
+            .toggle_tab_overview => return Action.toggleTabOverview(target),
 
             // Unimplemented but todo on gtk-ng branch
             .new_split,
@@ -549,7 +550,6 @@ pub const Application = extern struct {
             .present_terminal,
             .initial_size,
             .size_limit,
-            .toggle_tab_overview,
             .toggle_split_zoom,
             .toggle_window_decorations,
             .prompt_title,
@@ -1513,6 +1513,25 @@ const Action = struct {
             .surface => |v| v.rt_surface.surface.toggleMaximize(),
         }
     }
+
+    pub fn toggleTabOverview(target: apprt.Target) bool {
+        switch (target) {
+            .app => return false,
+            .surface => |core| {
+                const surface = core.rt_surface.surface;
+                const window = ext.getAncestor(
+                    Window,
+                    surface.as(gtk.Widget),
+                ) orelse {
+                    log.warn("surface is not in a window, ignoring new_tab", .{});
+                    return false;
+                };
+
+                window.toggleTabOverview();
+                return true;
+            },
+        }
+    }
 };
 
 /// This sets various GTK-related environment variables as necessary

src/apprt/gtk-ng/class/window.zig

@@ -215,6 +215,7 @@ pub const Window = extern struct {
         tab_overview_focus_timer: ?c_uint = null,
 
         // Template bindings
+        tab_overview: *adw.TabOverview,
         tab_bar: *adw.TabBar,
         tab_view: *adw.TabView,
         toolbar: *adw.ToolbarView,
@@ -448,6 +449,13 @@ pub const Window = extern struct {
         return tab_view.reorderPage(page, desired_pos) != 0;
     }
 
+    pub fn toggleTabOverview(self: *Self) void {
+        const priv = self.private();
+        const tab_overview = priv.tab_overview;
+        const is_open = tab_overview.getOpen() != 0;
+        tab_overview.setOpen(@intFromBool(!is_open));
+    }
+
     /// Updates various appearance properties. This should always be safe
     /// to call multiple times. This should be called whenever a change
     /// happens that might affect how the window appears (config change,
@@ -1240,6 +1248,7 @@ pub const Window = extern struct {
             });
 
             // Bindings
+            class.bindTemplateChildPrivate("tab_overview", .{});
             class.bindTemplateChildPrivate("tab_bar", .{});
             class.bindTemplateChildPrivate("tab_view", .{});
             class.bindTemplateChildPrivate("toolbar", .{});