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

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

1 files changed, 10 insertions, 0 deletions

diff --git a/Applications/Taskbar/WindowList.cpp b/Applications/Taskbar/WindowList.cpp
index 8afed41468..2c8be5806f 100644
--- a/Applications/Taskbar/WindowList.cpp
+++ b/Applications/Taskbar/WindowList.cpp
@@ -1,4 +1,6 @@
 #include "WindowList.h"
+#include <WindowServer/WSAPITypes.h>
+#include <LibGUI/GEventLoop.h>
 
 Window& WindowList::ensure_window(const WindowIdentifier& identifier)
 {
@@ -7,6 +9,14 @@ Window& WindowList::ensure_window(const WindowIdentifier& identifier)
         return *it->value;
     auto window = make<Window>(identifier);
     window->set_button(aid_create_button());
+    window->button()->on_click = [identifier] (GButton&) {
+        WSAPI_ClientMessage message;
+        message.type = WSAPI_ClientMessage::Type::WM_SetActiveWindow;
+        message.wm.client_id = identifier.client_id();
+        message.wm.window_id = identifier.window_id();
+        bool success = GEventLoop::post_message_to_server(message);
+        ASSERT(success);
+    };
     auto& window_ref = *window;
     m_windows.set(identifier, move(window));
     return window_ref;