From 70eb74c356d291f4b5e048abef7772864a4f95f1 Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Fri, 14 Apr 2023 01:36:07 +0100
Subject: [PATCH] fractional-scale: notify all surfaces on window move

---
 src/Window.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/Window.cpp b/src/Window.cpp
index 3942114b..ff1ddbcd 100644
--- a/src/Window.cpp
+++ b/src/Window.cpp
@@ -291,6 +291,17 @@ void CWindow::moveToWorkspace(int workspaceID) {
 
     if (PMONITOR)
         g_pProtocolManager->m_pFractionalScaleProtocolManager->setPreferredScaleForSurface(m_pWLSurface.wlr(), PMONITOR->scale);
+
+    if (!m_bIsMapped)
+        return;
+
+    wlr_surface_for_each_surface(
+        m_pWLSurface.wlr(),
+        [](wlr_surface* surf, int x, int y, void* data) {
+            const auto PMONITOR = g_pCompositor->getMonitorFromID(((CWindow*)data)->m_iMonitorID);
+            g_pProtocolManager->m_pFractionalScaleProtocolManager->setPreferredScaleForSurface(surf, PMONITOR ? PMONITOR->scale : 1.f);
+        },
+        this);
 }
 
 CWindow* CWindow::X11TransientFor() {