desktop/window: reduce window deco updates (#13980)

AVARDAMAGE_ENTIRE doesn't mean the geometry changed, so no point in an expensive update

1 files changed, 12 insertions, 3 deletions

diff --git a/src/desktop/view/Window.cpp b/src/desktop/view/Window.cpp
index 2a388d68..e9f22021 100644
--- a/src/desktop/view/Window.cpp
+++ b/src/desktop/view/Window.cpp
@@ -658,12 +658,21 @@ void CWindow::onMap() {
         false);
 
     m_realSize->setUpdateCallback([this](auto) {
-        if (m_isMapped)
-            m_events.resize.emit();
+        if (!m_isMapped)
+            return;
+
+        updateWindowDecos();
+
+        m_events.resize.emit();
     });
 
     m_realPosition->setUpdateCallback([this](auto) {
-        if (m_isMapped && m_monitor != m_prevMonitor) {
+        if (!m_isMapped)
+            return;
+
+        updateWindowDecos();
+
+        if (m_monitor != m_prevMonitor) {
             m_prevMonitor = m_monitor;
             m_events.monitorChanged.emit();
         }