Taskbar: More bringup work. We now see a basic window list.

1 files changed, 12 insertions, 0 deletions

diff --git a/Servers/WindowServer/WSWindowManager.h b/Servers/WindowServer/WSWindowManager.h
index 328f2d7f6e..8cc58c7b09 100644
--- a/Servers/WindowServer/WSWindowManager.h
+++ b/Servers/WindowServer/WSWindowManager.h
@@ -112,6 +112,7 @@ private:
     template<typename Callback> IterationDecision for_each_visible_window_of_type_from_front_to_back(WSWindowType, Callback);
     template<typename Callback> IterationDecision for_each_visible_window_from_front_to_back(Callback);
     template<typename Callback> IterationDecision for_each_visible_window_from_back_to_front(Callback);
+    template<typename Callback> void for_each_window_listening_to_wm_events(Callback);
     template<typename Callback> void for_each_active_menubar_menu(Callback);
     void close_current_menu();
     virtual void on_message(const WSMessage&) override;
@@ -265,3 +266,14 @@ IterationDecision WSWindowManager::for_each_visible_window_from_front_to_back(Ca
         return IterationDecision::Abort;
     return for_each_visible_window_of_type_from_front_to_back(WSWindowType::WindowSwitcher, callback);
 }
+
+template<typename Callback>
+void WSWindowManager::for_each_window_listening_to_wm_events(Callback callback)
+{
+    for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
+        if (!window->listens_to_wm_events())
+            continue;
+        if (callback(*window) == IterationDecision::Abort)
+            return;
+    }
+}