https://invent.kde.org/plasma/kwin/-/merge_requests/7479

From 6f9bc0f2bd51d8e70d0868858e02e3ac04498840 Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Tue, 18 Mar 2025 19:11:22 +0100
Subject: [PATCH 1/2] layershellv1window: close the window when the desired
 output gets removed

Workspace::outputRemoved also gets emitted when the output is turned off, and it
doesn't require taking special care to turn the output off before removing it.

(cherry picked from commit 4ee32d7f71de7f7f9a24c44b9dc4dd31fd3be98f)
---
 src/layershellv1window.cpp | 8 ++++----
 src/layershellv1window.h   | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/layershellv1window.cpp b/src/layershellv1window.cpp
index 0e044fcf183..b6e18dedd61 100644
--- a/src/layershellv1window.cpp
+++ b/src/layershellv1window.cpp
@@ -55,8 +55,8 @@ LayerShellV1Window::LayerShellV1Window(LayerSurfaceV1Interface *shellSurface,
     connect(shellSurface->surface(), &SurfaceInterface::aboutToBeDestroyed,
             this, &LayerShellV1Window::destroyWindow);
 
-    connect(output, &Output::enabledChanged,
-            this, &LayerShellV1Window::handleOutputEnabledChanged);
+    connect(workspace(), &Workspace::outputRemoved,
+            this, &LayerShellV1Window::handleOutputRemoved);
 
     connect(shellSurface->surface(), &SurfaceInterface::sizeChanged,
             this, &LayerShellV1Window::handleSizeChanged);
@@ -338,9 +338,9 @@ void LayerShellV1Window::handleAcceptsFocusChanged()
     }
 }
 
-void LayerShellV1Window::handleOutputEnabledChanged()
+void LayerShellV1Window::handleOutputRemoved(Output *output)
 {
-    if (!m_desiredOutput->isEnabled()) {
+    if (output == m_desiredOutput) {
         closeWindow();
         destroyWindow();
     }
diff --git a/src/layershellv1window.h b/src/layershellv1window.h
index 923b5a6b4e0..9cdaa1d56a9 100644
--- a/src/layershellv1window.h
+++ b/src/layershellv1window.h
@@ -66,7 +66,7 @@ private:
     void handleUnmapped();
     void handleCommitted();
     void handleAcceptsFocusChanged();
-    void handleOutputEnabledChanged();
+    void handleOutputRemoved(Output *output);
     void scheduleRearrange();
     void activateScreenEdge();
     void deactivateScreenEdge();
-- 
GitLab


From dc9dcc06f75ef12bd6c05d0c549414a5c1d3acea Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Thu, 3 Apr 2025 08:25:31 +0300
Subject: [PATCH 2/2] Break Workspace::outputRemoved connection when a layer
 shell window is destroyed

So the destroyWindow() function is not called again when the Workspace
emits the outputRemoved signal.

(cherry picked from commit 23626717185a560df20615a252b2aba266ad756a)
---
 src/layershellv1window.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/layershellv1window.cpp b/src/layershellv1window.cpp
index b6e18dedd61..2282ac147b8 100644
--- a/src/layershellv1window.cpp
+++ b/src/layershellv1window.cpp
@@ -204,7 +204,9 @@ void LayerShellV1Window::destroyWindow()
     }
     m_shellSurface->disconnect(this);
     m_shellSurface->surface()->disconnect(this);
-    m_desiredOutput->disconnect(this);
+
+    disconnect(workspace(), &Workspace::outputRemoved,
+               this, &LayerShellV1Window::handleOutputRemoved);
 
     markAsDeleted();
     Q_EMIT closed();
-- 
GitLab