kde-plasma/xdg-desktop-portal-kde: fix crash w/ screencasting

Bug: https://bugs.kde.org/show_bug.cgi?id=500577
Closes: https://bugs.gentoo.org/957100
Signed-off-by: Sam James <sam@gentoo.org>

kde-plasma/xdg-desktop-portal-kde/files/xdg-desktop-portal-kde-6.3.5-screencast-crash.patch

@@ -0,0 +1,47 @@
+https://bugs.gentoo.org/957100
+https://bugs.kde.org/show_bug.cgi?id=500577
+https://invent.kde.org/plasma/xdg-desktop-portal-kde/-/commit/011d08c340bab468eec6aa347ae138e40c6332cf
+
+From 011d08c340bab468eec6aa347ae138e40c6332cf Mon Sep 17 00:00:00 2001
+From: David Redondo <kde@david-redondo.de>
+Date: Tue, 3 Jun 2025 12:10:34 +0200
+Subject: [PATCH] screencast: Guard against session closing while creating
+ stream
+
+Starting a stream runs an event loop during which the session can
+be closed. For now use a QPointer to guard against that until
+we make it not use an event loop anymore.
+BUG:500577
+FIXED-IN:6.4
+
+
+(cherry picked from commit 13a19d1db5562d45477c6fa2cb53c3f40d7c60ed)
+
+Co-authored-by: David Redondo <kde@david-redondo.de>
+---
+ src/screencast.cpp | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/src/screencast.cpp b/src/screencast.cpp
+index d0841a96..510f5242 100644
+--- a/src/screencast.cpp
++++ b/src/screencast.cpp
+@@ -282,6 +282,7 @@
+         QVariantList outputs;
+         QList<WindowRestoreInfo> windows;
+         WaylandIntegration::Streams streams;
++        QPointer<ScreenCastSession> guardedSession(session);
+         Screencasting::CursorMode cursorMode = Screencasting::CursorMode(session->cursorMode());
+         for (const auto &output : std::as_const(selectedOutputs)) {
+             WaylandIntegration::Stream stream;
+@@ -332,6 +333,10 @@
+             return 2;
+         }
+ 
++        if (!guardedSession) {
++            return 2;
++        }
++
+         session->setStreams(streams);
+         results.insert(QStringLiteral("streams"), QVariant::fromValue<WaylandIntegration::Streams>(streams));
+         if (allowRestore) {

kde-plasma/xdg-desktop-portal-kde/xdg-desktop-portal-kde-6.3.5-r1.ebuild

@@ -0,0 +1,69 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ECM_TEST="forceoptional"
+KFMIN=6.10.0
+QTMIN=6.8.1
+inherit ecm plasma.kde.org xdg
+
+DESCRIPTION="Backend implementation for xdg-desktop-portal that is using Qt/KDE Frameworks"
+
+LICENSE="LGPL-2+"
+SLOT="6"
+KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~x86"
+IUSE=""
+
+# dev-qt/qtbase:= slot op: Uses Qt::GuiPrivate for qtx11extras_p.h
+# dev-qt/qtbase:=[cups]: includes specifically the cups private header
+# dev-qt/qtgui: QtXkbCommonSupport is provided by either IUSE libinput or X
+COMMON_DEPEND="
+	>=dev-libs/wayland-1.15
+	>=dev-qt/qtbase-${QTMIN}:6=[cups,dbus,gui,widgets]
+	>=dev-qt/qtdeclarative-${QTMIN}:6
+	|| (
+		>=dev-qt/qtbase-${QTMIN}:6[libinput]
+		>=dev-qt/qtbase-${QTMIN}:6[X]
+	)
+	>=dev-qt/qtwayland-${QTMIN}:6
+	>=kde-frameworks/kcoreaddons-${KFMIN}:6[dbus]
+	>=kde-frameworks/kconfig-${KFMIN}:6
+	>=kde-frameworks/kcrash-${KFMIN}:6
+	>=kde-frameworks/kglobalaccel-${KFMIN}:6
+	>=kde-frameworks/kguiaddons-${KFMIN}:6
+	>=kde-frameworks/ki18n-${KFMIN}:6
+	>=kde-frameworks/kiconthemes-${KFMIN}:6
+	>=kde-frameworks/kio-${KFMIN}:6
+	>=kde-frameworks/kirigami-${KFMIN}:6
+	>=kde-frameworks/knotifications-${KFMIN}:6
+	>=kde-frameworks/kservice-${KFMIN}:6
+	>=kde-frameworks/kstatusnotifieritem-${KFMIN}:6
+	>=kde-frameworks/kwidgetsaddons-${KFMIN}:6
+	>=kde-frameworks/kwindowsystem-${KFMIN}:6
+	>=kde-plasma/kwayland-${KDE_CATV}:6
+	>=kde-plasma/plasma-workspace-${KDE_CATV}:6
+	x11-libs/libxkbcommon
+"
+DEPEND="${COMMON_DEPEND}
+	>=dev-libs/plasma-wayland-protocols-1.16.0
+	>=dev-libs/wayland-protocols-1.25
+	>=dev-qt/qtbase-${QTMIN}:6[concurrent]
+"
+RDEPEND="${COMMON_DEPEND}
+	kde-misc/kio-fuse:6
+	sys-apps/xdg-desktop-portal
+"
+BDEPEND="
+	>=dev-qt/qtwayland-${QTMIN}:6
+	virtual/pkgconfig
+"
+
+CMAKE_SKIP_TESTS=(
+	# bugs: 926483, wants dbus/X11
+	colorschemetest
+)
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-6.3.5-screencast-crash.patch
+)