WindowServer: Add WM_SetActiveWindow client request and use it in Taskbar.

This makes it possible for Taskbar to switch windows. :^)

1 files changed, 18 insertions, 0 deletions

diff --git a/Servers/WindowServer/WSMessage.h b/Servers/WindowServer/WSMessage.h
index 3911a48d6f..32bf2135ec 100644
--- a/Servers/WindowServer/WSMessage.h
+++ b/Servers/WindowServer/WSMessage.h
@@ -56,6 +56,7 @@ public:
         APISetWallpaperRequest,
         APIGetWallpaperRequest,
         APISetWindowOverrideCursorRequest,
+        WMAPISetActiveWindowRequest,
         __End_API_Client_Requests,
     };
 
@@ -101,6 +102,23 @@ private:
     int m_client_id { 0 };
 };
 
+class WSWMAPISetActiveWindowRequest : public WSAPIClientRequest {
+public:
+    WSWMAPISetActiveWindowRequest(int client_id, int target_client_id, int target_window_id)
+        : WSAPIClientRequest(WSMessage::WMAPISetActiveWindowRequest, client_id)
+        , m_target_client_id(target_client_id)
+        , m_target_window_id(target_window_id)
+    {
+    }
+
+    int target_client_id() const { return m_target_client_id; }
+    int target_window_id() const { return m_target_window_id; }
+
+private:
+    int m_target_client_id;
+    int m_target_window_id;
+};
+
 class WSAPISetGlobalCursorTrackingRequest : public WSAPIClientRequest {
 public:
     WSAPISetGlobalCursorTrackingRequest(int client_id, int window_id, bool value)