File kdecoration-5.27.patch of Package applet-window-buttons

From 924994e10402921bf22fefc099bca2914989081c Mon Sep 17 00:00:00 2001
From: Dmitry Chermnykh <76gh6rvso@relay.firefox.com>
Date: Mon, 23 Jan 2023 21:21:47 +0500
Subject: [PATCH] Support building on plasma 5.26.90+

---
 CMakeLists.txt                        | 2 +-
 libappletdecoration/previewclient.cpp | 5 +++++
 libappletdecoration/previewclient.h   | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5ecec88..43adaef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set(EMAIL "mvourlakos@gmail.com")
 
 set(QT_MIN_VERSION "5.15.0")
 set(KF5_MIN_VERSION "5.81.0")
-set(KDECORATION2_MIN_VERSION "5.24.0")
+set(KDECORATION2_MIN_VERSION "5.26.90")
 
 set(KF5_LOCALE_PREFIX "")
 
diff --git a/libappletdecoration/previewclient.cpp b/libappletdecoration/previewclient.cpp
index 2cf184b..3ffe358 100644
--- a/libappletdecoration/previewclient.cpp
+++ b/libappletdecoration/previewclient.cpp
@@ -263,6 +263,11 @@ WId PreviewClient::windowId() const
     return 0;
 }
 
+QString PreviewClient::windowClass() const
+{
+    return QString("kwin_preview");
+}
+
 QPalette PreviewClient::palette() const
 {
     return m_palette->palette();
diff --git a/libappletdecoration/previewclient.h b/libappletdecoration/previewclient.h
index c479acc..e5fbe7a 100644
--- a/libappletdecoration/previewclient.h
+++ b/libappletdecoration/previewclient.h
@@ -74,6 +74,7 @@ class PreviewClient : public QObject, public KDecoration2::ApplicationMenuEnable
     QString caption() const override;
     WId decorationId() const override;
     WId windowId() const override;
+    QString windowClass() const override;
     int desktop() const override;
     QIcon icon() const override;
     bool isActive() const override;