WindowServer: Introduce a WM event mask so Taskbar can ignore window rects.

Taskbar was waking up to do nothing every time a window rect changed.

3 files changed, 21 insertions, 1 deletions

diff --git a/LibGUI/GEvent.h b/LibGUI/GEvent.h
index ecbe51ead3..25636afbef 100644
--- a/LibGUI/GEvent.h
+++ b/LibGUI/GEvent.h
@@ -30,9 +30,13 @@ public:
         FocusOut,
         WindowCloseRequest,
         ContextMenu,
+
+        __Begin_WM_Events,
         WM_WindowRemoved,
         WM_WindowStateChanged,
+        WM_WindowRectChanged,
         WM_WindowIconChanged,
+        __End_WM_Events,
     };
 
     GEvent() { }
@@ -95,6 +99,20 @@ private:
     bool m_minimized;
 };
 
+class GWMWindowRectChangedEvent : public GWMEvent {
+public:
+    GWMWindowRectChangedEvent(int client_id, int window_id, const Rect& rect)
+        : GWMEvent(GEvent::Type::WM_WindowRectChanged, client_id, window_id)
+        , m_rect(rect)
+    {
+    }
+
+    Rect rect() const { return m_rect; }
+
+private:
+    Rect m_rect;
+};
+
 class GWMWindowIconChangedEvent : public GWMEvent {
 public:
     GWMWindowIconChangedEvent(int client_id, int window_id, const String& icon_path)
diff --git a/LibGUI/GEventLoop.cpp b/LibGUI/GEventLoop.cpp
index b14c621e91..809943a738 100644
--- a/LibGUI/GEventLoop.cpp
+++ b/LibGUI/GEventLoop.cpp
@@ -175,6 +175,8 @@ void GEventLoop::handle_wm_event(const WSAPI_ServerMessage& event, GWindow& wind
 #endif
     if (event.type == WSAPI_ServerMessage::WM_WindowStateChanged)
         return post_event(window, make<GWMWindowStateChangedEvent>(event.wm.client_id, event.wm.window_id, String(event.text, event.text_length), event.wm.rect, event.wm.is_active, (GWindowType)event.wm.window_type, event.wm.is_minimized));
+    if (event.type == WSAPI_ServerMessage::WM_WindowRectChanged)
+        return post_event(window, make<GWMWindowRectChangedEvent>(event.wm.client_id, event.wm.window_id, event.wm.rect));
     if (event.type == WSAPI_ServerMessage::WM_WindowIconChanged)
         return post_event(window, make<GWMWindowIconChangedEvent>(event.wm.client_id, event.wm.window_id, String(event.text, event.text_length)));
     if (event.type == WSAPI_ServerMessage::WM_WindowRemoved)
diff --git a/LibGUI/GWindow.cpp b/LibGUI/GWindow.cpp
index de38f0ffcc..505338f7d6 100644
--- a/LibGUI/GWindow.cpp
+++ b/LibGUI/GWindow.cpp
@@ -277,7 +277,7 @@ void GWindow::event(CEvent& event)
         return;
     }
 
-    if (event.type() == GEvent::WM_WindowRemoved || event.type() == GEvent::WM_WindowStateChanged || event.type() == GEvent::WM_WindowIconChanged)
+    if (event.type() > GEvent::__Begin_WM_Events && event.type() < GEvent::__End_WM_Events)
         return wm_event(static_cast<GWMEvent&>(event));
 
     CObject::event(event);