x11-wm/mutter: fix USE=-wayland build; add various upstream fixes

Upstream patchset up to current state of stable branch most notably includes:
* fixes compatibility with xdg-desktop-portal-gnome-45.1
* some important NVIDIA EGLStream fix when that ends up used (with
  e.g. MUTTER_DEBUG_FORCE_EGL_STREAM=1)
* window size and related fixes when moving fullscreen window across
  differently sized monitors
* fixes handling of relative mode for tablet
* improvements for desktop icons extension purposes
* much more

Closes: https://bugs.gentoo.org/914571
Signed-off-by: Mart Raudsepp <leio@gentoo.org>

3 files changed, 288 insertions, 0 deletions

diff --git a/x11-wm/mutter/Manifest b/x11-wm/mutter/Manifest
index 46cee7d21b3a..d9669bb68553 100644
--- a/x11-wm/mutter/Manifest
+++ b/x11-wm/mutter/Manifest
@@ -1,4 +1,5 @@
 DIST mutter-44.3.tar.xz 2848256 BLAKE2B 42c00d4673cab5d119361c6eb2b78c33894c637b36a34f9b74eb5a19ca621d3458208be020216f9a8949e8b0a9c9de697662c5aebb11f70bc83173ce33c7a1eb SHA512 d29bc6c7407ba81be0b5bfa2333bc77c09f7a084e09d6902cad8ca8e64ba75a22652b68a4e84b79b80481d9a7b6cb490128113dcd125ed5bcd5423d4ec88fb35
 DIST mutter-44.4.tar.xz 2847392 BLAKE2B 2ecdb0d447c0426a7e02f4d3b3cdf8936a6c7a5fecad163bdba9428f018e0ceb2047b241422bc9de5e9d0fb08e88a04d572d1b404b48d6df214a7263292309ba SHA512 3f7b37be5531e270c071fc9784a6a284a3d715dfd1dfc854779126197d6e53c660836412ba08e6233747c7b016926114a57be5adb36a11c8ec9c81e333ce668c
 DIST mutter-45.1.tar.xz 2881852 BLAKE2B 40fa8de01ecae346d2b9a352d55cb9215e3b9c88d7424c567fd63aa97dc7aa7cc202fdda298a4a8a9bc08330b6db3895d5860b8c99daaa4974dbd07f0ac8b86a SHA512 87a629e941eb231d05fc24dbb905acb12236c971a02dd000fdd6cc6e7686544b5796ce57d10b34e096dc956578a373d5a73e89760bcc6beb292e9a25ce2faaf4
+DIST mutter-45.2-r1-patchset.tar.xz 21864 BLAKE2B c09566f75a816f6599ac4bf99879cc0e3bb78220c56cc4bd64edabf00e533a5feb4decdaa75ef5ae7ade911ec266ba6dd4641f1cbcd2c3145c10d5a8d327d653 SHA512 dd953afb97c4cdd9e24b2eab6636472e526042eb768c23e0d5bd49cd3ceb3a5cebd3ff396d014bdf168de81f810cef754efbb1739350fc09f6d196461de41ea4
 DIST mutter-45.2.tar.xz 2884940 BLAKE2B c4107840b8bd0f75a9c76300f324bfff6aac3195f526ab88102c831df693cb8dfa5b55bb1590a54e68f41eab392e69bb833221480578a2fba4b1e4bdc5ed030d SHA512 2111ad0645d2da58dedb30d94e99b52045f38b31a9de7314a5d8b41a5525612d88d2fbaafd3658eb6f734c143ad12176367c26533237199d9a5c1ad3dea743c7
diff --git a/x11-wm/mutter/files/45.2-fix-X-only.patch b/x11-wm/mutter/files/45.2-fix-X-only.patch
new file mode 100644
index 000000000000..2e76277e2607
--- /dev/null
+++ b/x11-wm/mutter/files/45.2-fix-X-only.patch
@@ -0,0 +1,48 @@
+From e2ef4e1504a40d62b45167d7cacfea0322a78134 Mon Sep 17 00:00:00 2001
+From: Mart Raudsepp <leio@gentoo.org>
+Date: Mon, 25 Dec 2023 14:51:46 +0200
+Subject: [PATCH] build: Fix building without wayland headers
+
+Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3046
+---
+ src/backends/x11/nested/meta-backend-x11-nested.c | 2 ++
+ src/core/meta-context-main.c                      | 2 +-
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/backends/x11/nested/meta-backend-x11-nested.c b/src/backends/x11/nested/meta-backend-x11-nested.c
+index 17e6f7e47..0d99078ea 100644
+--- a/src/backends/x11/nested/meta-backend-x11-nested.c
++++ b/src/backends/x11/nested/meta-backend-x11-nested.c
+@@ -25,7 +25,9 @@
+ #include "backends/x11/nested/meta-cursor-renderer-x11-nested.h"
+ #include "backends/x11/nested/meta-renderer-x11-nested.h"
+ 
++#ifdef HAVE_WAYLAND
+ #include "wayland/meta-wayland.h"
++#endif
+ 
+ typedef struct _MetaBackendX11NestedPrivate
+ {
+diff --git a/src/core/meta-context-main.c b/src/core/meta-context-main.c
+index 9c94183b5..a0ac7c823 100644
+--- a/src/core/meta-context-main.c
++++ b/src/core/meta-context-main.c
+@@ -33,7 +33,6 @@
+ #include "backends/meta-virtual-monitor.h"
+ #include "backends/x11/cm/meta-backend-x11-cm.h"
+ #include "meta/meta-backend.h"
+-#include "wayland/meta-wayland.h"
+ #include "x11/session.h"
+ 
+ #ifdef HAVE_NATIVE_BACKEND
+@@ -42,6 +41,7 @@
+ 
+ #ifdef HAVE_WAYLAND
+ #include "backends/x11/nested/meta-backend-x11-nested.h"
++#include "wayland/meta-wayland.h"
+ #endif
+ 
+ typedef struct _MetaContextMainOptions
+-- 
+2.43.0
+
diff --git a/x11-wm/mutter/mutter-45.2-r1.ebuild b/x11-wm/mutter/mutter-45.2-r1.ebuild
new file mode 100644
index 000000000000..29a2b57bbc04
--- /dev/null
+++ b/x11-wm/mutter/mutter-45.2-r1.ebuild
@@ -0,0 +1,239 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+PYTHON_COMPAT=( python3_{10..12} )
+inherit gnome.org gnome2-utils meson python-any-r1 udev xdg
+
+DESCRIPTION="GNOME compositing window manager based on Clutter"
+HOMEPAGE="https://gitlab.gnome.org/GNOME/mutter/"
+SRC_URI+=" https://dev.gentoo.org/~leio/distfiles/${PF}-patchset.tar.xz"
+LICENSE="GPL-2+"
+
+if [[ ${PV} == 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://gitlab.gnome.org/GNOME/mutter.git"
+	SRC_URI=""
+	SLOT="0/13" # This can get easily out of date, but better than 9967
+else
+	KEYWORDS="~amd64 ~arm ~arm64 ~loong ~riscv ~x86"
+	SLOT="0/$(($(ver_cut 1) - 32))" # 0/libmutter_api_version - ONLY gnome-shell (or anything using mutter-clutter-<api_version>.pc) should use the subslot
+fi
+
+IUSE="debug elogind gnome gtk-doc input_devices_wacom +introspection screencast sysprof systemd test udev wayland video_cards_nvidia"
+# native backend requires gles3 for hybrid graphics blitting support, udev and a logind provider
+REQUIRED_USE="
+	gtk-doc? ( introspection )
+	wayland? ( ^^ ( elogind systemd ) udev )
+	test? ( wayland )"
+RESTRICT="!test? ( test )"
+
+# gnome-settings-daemon is build checked, but used at runtime only for org.gnome.settings-daemon.peripherals.keyboard gschema
+# USE=libei was first introduced in xwayland-23.2.1; we min dep on that to ensure the [libei(+)] works right, as missing USE flag with
+# previous versions meant that it's not there, while the intention seems to be to make it always enabled without USE flag in the future;
+# this ensures have_enable_ei_portal is always there in xwayland.pc, which affects how Xwayland is launched, thus if it were toggled off
+# in Xwayland after mutter is installed, Xwayland would fail to be started by mutter. mutter already hard-depends on libei, so there's
+# really no extra deps here (besides xdg-desktop-portal, but we want that too, anyhow).
+# v3.32.2 has many excessive or unused *_req variables declared, thus currently the dep order ignores those and goes via dependency() call order
+DEPEND="
+	>=media-libs/graphene-1.10.2[introspection?]
+	x11-libs/gdk-pixbuf:2
+	>=x11-libs/pango-1.46[introspection?]
+	>=x11-libs/cairo-1.14[X]
+	>=dev-libs/fribidi-1.0.0
+	>=gnome-base/gsettings-desktop-schemas-42.0[introspection?]
+	>=dev-libs/glib-2.75.1:2
+	gnome-base/gnome-settings-daemon
+	>=dev-libs/json-glib-0.12.0[introspection?]
+	>=x11-libs/libxkbcommon-0.4.3
+	x11-libs/libICE
+	>=app-accessibility/at-spi2-core-2.46:2[introspection?]
+	sys-apps/dbus
+	>=x11-misc/colord-1.4.5:=
+	>=media-libs/lcms-2.6:2
+	>=media-libs/harfbuzz-2.6.0:=
+	>=dev-libs/libei-1.0.901
+
+	gnome? ( gnome-base/gnome-desktop:4= )
+
+	>=media-libs/libcanberra-0.26
+
+	media-libs/libglvnd[X]
+
+	wayland? (
+		>=dev-libs/wayland-protocols-1.32
+		>=dev-libs/wayland-1.21.0
+
+		x11-libs/libdrm
+		media-libs/mesa[gbm(+)]
+		>=dev-libs/libinput-1.19.0:=
+
+		elogind? ( sys-auth/elogind )
+		>=x11-base/xwayland-23.2.1[libei(+)]
+		video_cards_nvidia? ( gui-libs/egl-wayland )
+	)
+	udev? (
+		>=virtual/libudev-232-r1:=
+		>=dev-libs/libgudev-232
+	)
+	systemd? ( sys-apps/systemd )
+	x11-libs/libSM
+	input_devices_wacom? ( >=dev-libs/libwacom-0.13:= )
+	>=x11-libs/startup-notification-0.7
+	screencast? ( >=media-video/pipewire-0.3.33:= )
+	introspection? ( >=dev-libs/gobject-introspection-1.54:= )
+	test? (
+		>=x11-libs/gtk+-3.19.8:3[X,introspection?]
+		gnome-extra/zenity
+	)
+	sysprof? ( >=dev-util/sysprof-capture-3.40.1:4 >=dev-util/sysprof-3.46.0 )
+"
+# for now upstream has "have_x11 = true" in the meson.build, but sooner or later upstream is going to make X optional.
+#	X? (
+DEPEND+="
+		>=gui-libs/gtk-4.0.0:4[X,introspection?]
+		>=x11-libs/libX11-1.7.0
+		>=x11-libs/libXcomposite-0.4
+		x11-libs/libXcursor
+		x11-libs/libXdamage
+		x11-libs/libXext
+		>=x11-libs/libXfixes-6
+		>=x11-libs/libXi-1.7.4
+		x11-libs/libXtst
+		x11-libs/libxkbfile
+		x11-misc/xkeyboard-config
+		>=x11-libs/libxkbcommon-0.4.3[X]
+		x11-libs/libXrender
+		>=x11-libs/libXrandr-1.5.0
+		x11-libs/libxcb:=
+		x11-libs/libXinerama
+		x11-libs/libXau
+"
+#	)"
+
+RDEPEND="${DEPEND}
+	!<gui-libs/gtk-4.6.4:4
+"
+DEPEND="${DEPEND}
+	x11-base/xorg-proto
+	sysprof? ( >=dev-util/sysprof-common-3.38.0 )
+"
+BDEPEND="
+	dev-util/wayland-scanner
+	dev-util/gdbus-codegen
+	dev-util/glib-utils
+	>=sys-devel/gettext-0.19.8
+	virtual/pkgconfig
+	gtk-doc? ( >=dev-util/gi-docgen-2021.1 )
+	test? (
+		${PYTHON_DEPS}
+		$(python_gen_any_dep '
+			>=dev-python/python-dbusmock-0.28[${PYTHON_USEDEP}]
+		')
+		app-text/docbook-xml-dtd:4.5
+		x11-misc/xvfb-run
+	)
+	wayland? (
+		>=sys-kernel/linux-headers-4.4
+		x11-libs/libxcvt
+	)
+"
+
+PATCHES=(
+	"${WORKDIR}"/patches # Upstream branch up to commit 5f777c90b79a
+	"${FILESDIR}"/${PV}-fix-X-only.patch #914571, upstream #3046, !3471
+	"${FILESDIR}"/${PN}-43.0-Disable-anonymous-file-test.patch
+)
+
+python_check_deps() {
+	if use test; then
+		python_has_version ">=dev-python/python-dbusmock-0.28[${PYTHON_USEDEP}]"
+	fi
+}
+
+src_configure() {
+	local emesonargs=(
+		# Mutter X11 renderer only supports gles2 and GLX, thus do NOT pass
+		#
+		#   -Dopengl_libname=libOpenGL.so.0
+		#
+		# while we build the x11 renderer, as we currently enable gles2 only
+		# with USE=wayland and x11 renderer wouldn't find the needed GLX symbols
+		# in a configuration where wayland is disabled, as libOpenGL doesn't
+		# include them.
+		#
+		# See
+		# - https://bugs.gentoo.org/835786
+		# - https://forums.gentoo.org/viewtopic-p-8695669.html
+
+		--buildtype $(usex debug debug plain)
+		-Dopengl=true
+		$(meson_use wayland gles2)
+		#gles2_libname
+		-Degl=true
+		-Dglx=true
+		$(meson_use wayland)
+		$(meson_use wayland xwayland)
+		$(meson_use systemd)
+		$(meson_use wayland native_backend)
+		$(meson_use screencast remote_desktop)
+		$(meson_use gnome libgnome_desktop)
+		$(meson_use udev)
+		-Dudev_dir=$(get_udevdir)
+		$(meson_use input_devices_wacom libwacom)
+		-Dsound_player=true
+		-Dpango_ft2=true
+		-Dstartup_notification=true
+		-Dsm=true
+		$(meson_use introspection)
+		$(meson_use gtk-doc docs)
+		$(meson_use test cogl_tests)
+		$(meson_use wayland core_tests) # core tests require wayland; overall -Dtests option is honored on top, so no extra conditional needed
+		-Dnative_tests=false
+		$(meson_use test clutter_tests)
+		$(meson_use test tests)
+		-Dkvm_tests=false
+		-Dtty_tests=false
+		$(meson_use sysprof profiler)
+		-Dinstalled_tests=false
+
+		#verbose # Let upstream choose default for verbose mode
+		#xwayland_path
+		# TODO: relies on default settings, but in Gentoo we might have some more packages we want to give Xgrab access (mostly virtual managers and remote desktops)
+		#xwayland_grab_default_access_rules
+	)
+
+	if use wayland && use video_cards_nvidia; then
+		emesonargs+=(
+			-Degl_device=true
+			-Dwayland_eglstream=true
+		)
+	else
+		emesonargs+=(
+			-Degl_device=false
+			-Dwayland_eglstream=false
+		)
+	fi
+
+	meson_src_configure
+}
+
+src_test() {
+	# Reset variables to avoid issues from /etc/profile.d/flatpak.sh file
+	gnome2_environment_reset
+	export XDG_DATA_DIRS="${EPREFIX}"/usr/share
+	glib-compile-schemas "${BUILD_DIR}"/data
+	GSETTINGS_SCHEMA_DIR="${BUILD_DIR}"/data meson_src_test --setup=CI
+}
+
+pkg_postinst() {
+	use udev && udev_reload
+	xdg_pkg_postinst
+	gnome2_schemas_update
+}
+
+pkg_postrm() {
+	use udev && udev_reload
+	xdg_pkg_postrm
+	gnome2_schemas_update
+}