Add close tabs on the right action

src/Surface.zig

@@ -5299,6 +5299,7 @@ pub fn performBindingAction(self: *Surface, action: input.Binding.Action) !bool
             switch (v) {
                 .this => .this,
                 .other => .other,
+                .right => .right,
             },
         ),
 

src/apprt/action.zig

@@ -767,6 +767,8 @@ pub const CloseTabMode = enum(c_int) {
     this,
     /// Close all other tabs.
     other,
+    /// Close all tabs to the right of the current tab.
+    right,
 };
 
 pub const CommandFinished = struct {

src/apprt/gtk/class/tab.zig

@@ -347,6 +347,7 @@ pub const Tab = extern struct {
         switch (mode) {
             .this => tab_view.closePage(page),
             .other => tab_view.closeOtherPages(page),
+            .right => tab_view.closePagesAfter(page),
         }
     }
 

src/apprt/gtk/ui/1.5/window.blp

@@ -162,6 +162,7 @@ template $GhosttyWindow: Adw.ApplicationWindow {
             page-attached => $page_attached();
             page-detached => $page_detached();
             create-window => $tab_create_window();
+            menu-model: tab_context_menu;
             shortcuts: none;
           }
         }
@@ -192,6 +193,35 @@ menu split_menu {
   }
 }
 
+menu tab_context_menu {
+  section {
+    item {
+      label: _("New Tab");
+      action: "win.new-tab";
+    }
+  }
+
+  section {
+    item {
+      label: _("Close Tab");
+      action: "tab.close";
+      target: "this";
+    }
+
+    item {
+      label: _("Close Other Tabs");
+      action: "tab.close";
+      target: "other";
+    }
+
+    item {
+      label: _("Close Tabs on the Right");
+      action: "tab.close";
+      target: "right";
+    }
+  }
+}
+
 menu main_menu {
   section {
     item {

src/input/Binding.zig

@@ -600,9 +600,8 @@ pub const Action = union(enum) {
     /// of the `confirm-close-surface` configuration setting.
     close_surface,
 
-    /// Close the current tab and all splits therein _or_ close all tabs and
-    /// splits thein of tabs _other_ than the current tab, depending on the
-    /// mode.
+    /// Close the current tab and all splits therein, close all other tabs, or
+    /// close every tab to the right of the current one depending on the mode.
     ///
     /// If the mode is not specified, defaults to closing the current tab.
     ///
@@ -1005,6 +1004,7 @@ pub const Action = union(enum) {
     pub const CloseTabMode = enum {
         this,
         other,
+        right,
 
         pub const default: CloseTabMode = .this;
     };

src/input/command.zig

@@ -538,6 +538,11 @@ fn actionCommands(action: Action.Key) []const Command {
                 .title = "Close Other Tabs",
                 .description = "Close all tabs in this window except the current one.",
             },
+            .{
+                .action = .{ .close_tab = .right },
+                .title = "Close Tabs on the Right",
+                .description = "Close every tab to the right of the current one.",
+            },
         },
 
         .close_window => comptime &.{.{