[gentoo-commits] repo/gentoo:master commit in: dev-qt/qtwebengine/files/, dev-qt/qtwebengine/

["Ionen Wolkens" <ionen@gentoo.org>]

commit:     519fa3d1d0895f0a9ebca66fa49b4bbff1006000
Author:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
AuthorDate: Mon Dec  2 06:28:07 2024 +0000
Commit:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
CommitDate: Mon Dec  2 07:22:47 2024 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=519fa3d1

dev-qt/qtwebengine: add 6.8.1

Signed-off-by: Ionen Wolkens <ionen <AT> gentoo.org>

 dev-qt/qtwebengine/Manifest                        |   1 +
 .../files/qtwebengine-6.8.1-QTBUG-131156.patch     | 150 ++++++++++
 dev-qt/qtwebengine/qtwebengine-6.8.1.ebuild        | 331 +++++++++++++++++++++
 3 files changed, 482 insertions(+)

diff --git a/dev-qt/qtwebengine/Manifest b/dev-qt/qtwebengine/Manifest
index 55227acc7cbe..f05c94cd674e 100644
--- a/dev-qt/qtwebengine/Manifest
+++ b/dev-qt/qtwebengine/Manifest
@@ -8,3 +8,4 @@ DIST qtwebengine-6.8-patchset-5.tar.xz 7540 BLAKE2B afb0bdeffeb5c83237e1bf72c092
 DIST qtwebengine-everywhere-src-6.7.2.tar.xz 550888844 BLAKE2B 2de049c9284583940bd1a9611a00c88a4f330a3b0bab8291d11296b8532d9f4e41be0d019045aca3d5983c3cfd6254d9e50c1133a497d03ef615fb74973e10f0 SHA512 5e1f65b5c0cecd62623ac386bbc89b1222f41b8c17cec1dd43851692d21f56e8b2dba45dab9405c33e88e1d1b24998d93dbcbf371a6504a1c8cdb1a6b5a94bf7
 DIST qtwebengine-everywhere-src-6.7.3.tar.xz 550988288 BLAKE2B e506e8bd950be478a9d0ecf69c66f7c56dab3c7a1503c5534f0ed5a770ed4d009935ca6905a1255701750cc8d5b790b895eb4f1d6f994ea8231d57c461c22da9 SHA512 f20769ac9b3f4a9fda9865c86d9dd2c779e404823d85aaf12cbbc425880352c19352ed39eb804a80a06a99e13582d22d45dbf2a8d7bbefea3592ff965b863cbe
 DIST qtwebengine-everywhere-src-6.8.0.tar.xz 566569136 BLAKE2B af2ccc4900ff96d36900bfd4bcb370017231776e211af512e73944dc47b62e6517e85658c436e91f904efae013c4a9035122f78694b4a3fc696f0790725862e0 SHA512 80137c6e1d9aaddddb5d81716acb2ddee620a1416e6318104ace377f0259906d3f79b0fbf9d57e13f581554bc14d7f13abc13396022406d3530f5d9014a7eed4
+DIST qtwebengine-everywhere-src-6.8.1.tar.xz 566480152 BLAKE2B 6e4137f66363169ae0ab9014d0f60e0af0af70e310ecfa5770d9b73ddb0cb32cffc2a3b15ec89d390aeb323e5250d3ce42576ebd09f741a23b333c6bebc85a4a SHA512 1cab90353894032e23ccccb279e3d0b4269f049879e5033f979b15f28141fd2fb3cae2cd31812811f648ca5b6a115d14790506e07f44cb56475f5865360b0ea6

diff --git a/dev-qt/qtwebengine/files/qtwebengine-6.8.1-QTBUG-131156.patch b/dev-qt/qtwebengine/files/qtwebengine-6.8.1-QTBUG-131156.patch
new file mode 100644
index 000000000000..2794fd37058e
--- /dev/null
+++ b/dev-qt/qtwebengine/files/qtwebengine-6.8.1-QTBUG-131156.patch
@@ -0,0 +1,150 @@
+Patch status: *should* be fixed in qtwebengine-6.8.2
+
+Somewhat annoying issue for qutebrowser users[1][2] resulting in hints
+not always being usable on some google-based sites (e.g. youtube).
+
+Note: as of the writing of this, [3] hasn't been merged upstream (yet)
+and so the final version of this patch may differ. Was added here early
+to avoid revbumping qtwebengine post-6.8.1 release, final version will
+likely land in 6.8.2 instead.
+
+[1] https://github.com/qutebrowser/qutebrowser/issues/8197
+[2] https://bugreports.qt.io/browse/QTBUG-131156
+[3] https://codereview.qt-project.org/c/qt/qtwebengine/+/604899
+--- a/src/core/renderer_host/user_resource_controller_host.cpp
++++ b/src/core/renderer_host/user_resource_controller_host.cpp
+@@ -43,8 +43,7 @@
+ void UserResourceControllerHost::WebContentsObserverHelper::RenderFrameCreated(content::RenderFrameHost *renderFrameHost)
+ {
+-    content::WebContents *contents = web_contents();
+     auto &remote = m_controllerHost->GetUserResourceControllerRenderFrame(renderFrameHost);
+-    const QList<UserScript> scripts = m_controllerHost->m_perContentsScripts.value(contents);
+-    for (const UserScript &script : scripts)
++    const auto scripts = m_controllerHost->m_perContentsScripts.constFind(web_contents());
++    for (const UserScript &script : *scripts)
+         remote->AddScript(script.data());
+ }
+@@ -57,4 +56,10 @@
+         remote->ClearScripts();
+     }
++    if (newHost) {
++        auto &remote = m_controllerHost->GetUserResourceControllerRenderFrame(newHost);
++        const auto scripts = m_controllerHost->m_perContentsScripts.constFind(web_contents());
++        for (const UserScript &script : *scripts)
++            remote->AddScript(script.data());
++    }
+ }
+ 
+--- a/src/core/renderer_host/web_channel_ipc_transport_host.cpp
++++ b/src/core/renderer_host/web_channel_ipc_transport_host.cpp
+@@ -108,4 +108,14 @@
+ }
+ 
++void WebChannelIPCTransportHost::RenderFrameHostChanged(content::RenderFrameHost *oldHost, content::RenderFrameHost *newHost)
++{
++    if (oldHost) {
++        if (oldHost->IsRenderFrameLive())
++            GetWebChannelIPCTransportRemote(oldHost)->ResetWorldId();
++    }
++    if (newHost) // this might set it again, but that is harmless
++        setWorldId(newHost, m_worldId);
++}
++
+ void WebChannelIPCTransportHost::RenderFrameDeleted(content::RenderFrameHost *rfh)
+ {
+--- a/src/core/renderer_host/web_channel_ipc_transport_host.h
++++ b/src/core/renderer_host/web_channel_ipc_transport_host.h
+@@ -46,4 +46,5 @@
+     // WebContentsObserver
+     void RenderFrameCreated(content::RenderFrameHost *frame) override;
++    void RenderFrameHostChanged(content::RenderFrameHost *oldHost, content::RenderFrameHost *newHost) override;
+     void RenderFrameDeleted(content::RenderFrameHost *render_frame_host) override;
+ 
+--- a/tests/auto/widgets/qwebenginescript/tst_qwebenginescript.cpp
++++ b/tests/auto/widgets/qwebenginescript/tst_qwebenginescript.cpp
+@@ -70,4 +70,5 @@
+     void webChannelWithExistingQtObject();
+     void navigation();
++    void navigation2();
+     void webChannelWithBadString();
+     void webChannelWithJavaScriptDisabled();
+@@ -578,4 +579,79 @@
+ }
+ 
++void tst_QWebEngineScript::navigation2()
++{
++    QWebEngineProfile profile("navigation2");
++    QWebEnginePage page(&profile, nullptr);
++    QWebChannel channel;
++    page.setWebChannel(&channel);
++    QWebEngineScript s1;
++    s1.setInjectionPoint(QWebEngineScript::DocumentCreation);
++    // Check webchannel is installed before DocumentCreation scripts are run
++    // onload shouldn't have run, and neither should wasready
++    s1.setWorldId(QWebEngineScript::MainWorld);
++    s1.setSourceCode("document.passCreation = 0;" \
++                     "if (typeof qt !== undefined) document.passCreation++;" \
++                     "if (document.onloadran) document.passCreation++;" \
++                     "if (document.wasready) document.passCreation++;");
++    page.scripts().insert(s1);
++    QWebEngineScript s2;
++    s2.setInjectionPoint(QWebEngineScript::DocumentReady);
++    // onload shouldn't have run
++    s2.setWorldId(QWebEngineScript::MainWorld);
++    s2.setSourceCode("document.passReady = 0;" \
++                     "if (typeof qt !== undefined) document.passReady++;" \
++                     "if (document.passCreation > 0) document.passReady++;" \
++                     "if (document.passDeferred > 0) document.passReady++;" \
++                     "if (document.onloadran) document.passReady++;" \
++                     "if (document.wasready) document.passReady++;");
++    page.scripts().insert(s2);
++    QWebEngineScript s3;
++    s3.setInjectionPoint(QWebEngineScript::Deferred);
++    // all should have run
++    s3.setWorldId(QWebEngineScript::MainWorld);
++    s3.setSourceCode("document.passDeferred = 0;" \
++                     "if (typeof qt !== undefined) document.passDeferred++;" \
++                     "if (document.passCreation > 0) document.passDeferred++;" \
++                     "if (document.passReady > 0) document.passDeferred++;" \
++                     "if (document.onloadran) document.passDeferred++;" \
++                     "if (document.wasready) document.passDeferred++;");
++    page.scripts().insert(s3);
++
++
++    QString html("<html><head><script>" \
++                 "  document.onloadran = false; document.wasready = false;"\
++                 "  document.addEventListener(\"readystatechange\", (x) => { "\
++                 "      if (x.target.readyState === \"interactive\") document.wasready= true;"\
++                 "  });"\
++                 "  function bodyload() { document.onloadran = true; };"\
++                 "</script></head>" \
++                 "<body onload='bodyload()'><p>hello world</p></body></html>");
++    page.setHtml(html, QUrl("about:blank"));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passCreation", QWebEngineScript::MainWorld),
++                 QVariant(1));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passReady", QWebEngineScript::MainWorld),
++                 QVariant(3));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passDeferred", QWebEngineScript::MainWorld),
++                 QVariant(5));
++
++    QString url2 = QStringLiteral("chrome://gpu/");
++    page.setUrl(url2);
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passCreation", QWebEngineScript::MainWorld),
++                 QVariant(1));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passReady", QWebEngineScript::MainWorld),
++                 QVariant(2));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passDeferred", QWebEngineScript::MainWorld),
++                 QVariant(3));
++
++    QString url3 = QStringLiteral("qrc:/resources/test_iframe_main.html");
++    page.setUrl(url3);
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passCreation", QWebEngineScript::MainWorld),
++                 QVariant(1));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passReady", QWebEngineScript::MainWorld),
++                 QVariant(2));
++    QTRY_COMPARE(evaluateJavaScriptSyncInWorld(&page, "document.passDeferred", QWebEngineScript::MainWorld),
++                 QVariant(3));
++}
++
+ // Try to set TestObject::text to an invalid UTF-16 string.
+ //

diff --git a/dev-qt/qtwebengine/qtwebengine-6.8.1.ebuild b/dev-qt/qtwebengine/qtwebengine-6.8.1.ebuild
new file mode 100644
index 000000000000..84b4837923ba
--- /dev/null
+++ b/dev-qt/qtwebengine/qtwebengine-6.8.1.ebuild
@@ -0,0 +1,331 @@
+# Copyright 2021-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+PYTHON_REQ_USE="xml(+)"
+inherit check-reqs flag-o-matic multiprocessing optfeature
+inherit prefix python-any-r1 qt6-build toolchain-funcs
+
+DESCRIPTION="Library for rendering dynamic web content in Qt6 C++ and QML applications"
+SRC_URI+="
+	https://dev.gentoo.org/~ionen/distfiles/${PN}-6.8-patchset-5.tar.xz
+"
+
+if [[ ${QT6_BUILD_TYPE} == release ]]; then
+	KEYWORDS="~amd64 ~arm64"
+fi
+
+IUSE="
+	accessibility +alsa bindist custom-cflags designer geolocation
+	+jumbo-build kerberos opengl pdfium pulseaudio qml screencast
+	+system-icu vaapi vulkan webdriver +widgets
+"
+REQUIRED_USE="
+	designer? ( qml widgets )
+"
+
+# dlopen: krb5, libva, pciutils, udev
+# gcc: for -latomic
+RDEPEND="
+	app-arch/snappy:=
+	dev-libs/expat
+	dev-libs/libevent:=
+	dev-libs/libxml2[icu]
+	dev-libs/libxslt
+	dev-libs/nspr
+	dev-libs/nss
+	~dev-qt/qtbase-${PV}:6[accessibility=,gui,opengl=,vulkan?,widgets?]
+	~dev-qt/qtdeclarative-${PV}:6[widgets?]
+	~dev-qt/qtwebchannel-${PV}:6[qml?]
+	media-libs/fontconfig
+	media-libs/freetype
+	media-libs/harfbuzz:=
+	media-libs/lcms:2
+	media-libs/libjpeg-turbo:=
+	media-libs/libpng:=
+	media-libs/libwebp:=
+	media-libs/mesa[gbm(+)]
+	media-libs/openjpeg:2=
+	media-libs/opus
+	media-libs/tiff:=
+	sys-apps/dbus
+	sys-apps/pciutils
+	sys-devel/gcc:*
+	sys-libs/zlib:=[minizip]
+	virtual/libudev
+	x11-libs/libX11
+	x11-libs/libXcomposite
+	x11-libs/libXdamage
+	x11-libs/libXext
+	x11-libs/libXfixes
+	x11-libs/libXrandr
+	x11-libs/libXtst
+	x11-libs/libdrm
+	x11-libs/libxcb:=
+	x11-libs/libxkbcommon
+	x11-libs/libxkbfile
+	alsa? ( media-libs/alsa-lib )
+	designer? ( ~dev-qt/qttools-${PV}:6[designer] )
+	geolocation? ( ~dev-qt/qtpositioning-${PV}:6 )
+	kerberos? ( virtual/krb5 )
+	pulseaudio? ( media-libs/libpulse[glib] )
+	screencast? (
+		dev-libs/glib:2
+		media-video/pipewire:=
+	)
+	system-icu? ( dev-libs/icu:= )
+	vaapi? ( media-libs/libva:=[X] )
+"
+DEPEND="
+	${RDEPEND}
+	media-libs/libglvnd
+	x11-base/xorg-proto
+	x11-libs/libXcursor
+	x11-libs/libXi
+	x11-libs/libxshmfence
+	opengl? ( media-libs/libglvnd[X] )
+	screencast? ( media-libs/libepoxy[egl(+)] )
+	test? (
+		widgets? ( app-text/poppler[cxx(+)] )
+	)
+	vaapi? (
+		vulkan? ( dev-util/vulkan-headers )
+	)
+"
+BDEPEND="
+	$(python_gen_any_dep 'dev-python/html5lib[${PYTHON_USEDEP}]')
+	dev-util/gperf
+	net-libs/nodejs[ssl]
+	sys-devel/bison
+	sys-devel/flex
+"
+
+PATCHES=( "${WORKDIR}"/patches/${PN} )
+[[ ${PV} == 6.9999 ]] || # too fragile for 6.9999, but keep for 6.x.9999
+	PATCHES+=( "${WORKDIR}"/patches/chromium )
+
+PATCHES+=(
+	# add extras as needed here, may merge in set if carries across versions
+	"${FILESDIR}"/${PN}-6.7.3-missing-gn-deps.patch
+	"${FILESDIR}"/${PN}-6.8.1-QTBUG-131156.patch
+)
+
+python_check_deps() {
+	python_has_version "dev-python/html5lib[${PYTHON_USEDEP}]"
+}
+
+qtwebengine_check-reqs() {
+	[[ ${MERGE_TYPE} == binary ]] && return
+
+	if is-flagq '-g?(gdb)?([1-9])'; then #307861
+		ewarn
+		ewarn "Used CFLAGS/CXXFLAGS seem to enable debug info (-g or -ggdb), which"
+		ewarn "is non-trivial with ${PN}. May experience extended compilation"
+		ewarn "times, increased disk/memory usage, and potentially link failure."
+		ewarn
+		ewarn "If run into issues, please try disabling before reporting a bug."
+	fi
+
+	local CHECKREQS_DISK_BUILD=9G
+	local CHECKREQS_DISK_USR=360M
+
+	if ! has distcc ${FEATURES}; then #830661
+		# assume ~2GB per job or 1.5GB if clang, possible with less
+		# depending on free memory and *FLAGS, but prefer being safe as
+		# users having OOM issues with qtwebengine been rather common
+		tc-is-clang && : 15 || : 20
+		local CHECKREQS_MEMORY=$(($(makeopts_jobs)*_/10))G
+	fi
+
+	check-reqs_${EBUILD_PHASE_FUNC} #570534
+}
+
+pkg_pretend() {
+	qtwebengine_check-reqs
+}
+
+pkg_setup() {
+	qtwebengine_check-reqs
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	qt6-build_src_prepare
+
+	# for www-plugins/chrome-binary-plugins (widevine) search paths on prefix
+	hprefixify -w /Gentoo/ src/core/content_client_qt.cpp
+
+	# store chromium versions, only used in postinst for a warning
+	local chromium
+	mapfile -t chromium < CHROMIUM_VERSION || die
+	[[ ${chromium[1]} =~ ^Based.*:[^0-9]+([0-9.]+$) ]] &&
+		QT6_CHROMIUM_VER=${BASH_REMATCH[1]} || die
+	[[ ${chromium[2]} =~ ^Patched.+:[^0-9]+([0-9.]+$) ]] &&
+		QT6_CHROMIUM_PATCHES_VER=${BASH_REMATCH[1]} || die
+}
+
+src_configure() {
+	local mycmakeargs=(
+		$(qt_feature pdfium qtpdf_build)
+		$(qt_feature qml qtpdf_quick_build)
+		$(qt_feature webdriver webenginedriver)
+		$(qt_feature widgets qtpdf_widgets_build)
+		$(usev pdfium -DQT_FEATURE_pdf_v8=ON)
+
+		-DQT_FEATURE_qtwebengine_build=ON
+		$(qt_feature qml qtwebengine_quick_build)
+		$(qt_feature widgets qtwebengine_widgets_build)
+
+		$(cmake_use_find_package designer Qt6Designer)
+
+		$(qt_feature alsa webengine_system_alsa)
+		$(qt_feature !bindist webengine_proprietary_codecs)
+		$(qt_feature geolocation webengine_geolocation)
+		$(qt_feature jumbo-build webengine_jumbo_build)
+		$(qt_feature kerberos webengine_kerberos)
+		$(qt_feature pulseaudio webengine_system_pulseaudio)
+		$(qt_feature screencast webengine_webrtc_pipewire)
+		$(qt_feature system-icu webengine_system_icu)
+		$(qt_feature vaapi webengine_vaapi)
+		$(qt_feature vulkan webengine_vulkan)
+		-DQT_FEATURE_webengine_embedded_build=OFF
+		-DQT_FEATURE_webengine_extensions=ON
+		# TODO: it may be possible to make x11 optional since 6.8+
+		-DQT_FEATURE_webengine_ozone_x11=ON
+		-DQT_FEATURE_webengine_pepper_plugins=ON
+		-DQT_FEATURE_webengine_printing_and_pdf=ON
+		-DQT_FEATURE_webengine_spellchecker=ON
+		-DQT_FEATURE_webengine_webchannel=ON
+		-DQT_FEATURE_webengine_webrtc=ON
+
+		# needs a modified ffmpeg to be usable, and even then it may not
+		# cooperate with new major ffmpeg versions (bug #831487)
+		-DQT_FEATURE_webengine_system_ffmpeg=OFF
+
+		# use bundled re2 to avoid complications, Qt has also disabled
+		# this by default in 6.7.3+ (bug #913923)
+		-DQT_FEATURE_webengine_system_re2=OFF
+
+		# system_libvpx=ON is intentionally ignored with USE=vaapi which leads
+		# to using system's being less tested, prefer disabling for now until
+		# vaapi can use it as well
+		-DQT_FEATURE_webengine_system_libvpx=OFF
+
+		# not necessary to pass these (default), but in case detection fails
+		$(printf -- '-DQT_FEATURE_webengine_system_%s=ON ' \
+			freetype gbm glib harfbuzz lcms2 libevent libjpeg \
+			libopenjpeg2 libpci libpng libtiff libwebp libxml \
+			minizip opus poppler snappy zlib)
+
+		# TODO: fixup gn cross, or package dev-qt/qtwebengine-gn with =ON
+		# (see also BUILD_ONLY_GN option added in 6.8+ for the latter)
+		-DINSTALL_GN=OFF
+	)
+
+	local mygnargs=(
+		# prefer no dlopen where possible
+		$(usev pulseaudio link_pulseaudio=true)
+		$(usev screencast rtc_link_pipewire=true)
+		# reduce default disk space usage
+		symbol_level=0
+	)
+
+	if use !custom-cflags; then
+		strip-flags # fragile
+
+		if is-flagq '-g?(gdb)?([2-9])'; then #914475
+			replace-flags '-g?(gdb)?([2-9])' -g1
+			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"
+		fi
+
+		# Built helpers segfault when using (at least) -march=armv8-a+pauth
+		# (bug #920555, #920568 -- suspected gcc bug). For now, filter all
+		# for simplicity. Override with USE=custom-cflags if wanted, please
+		# report if above -march works again so can cleanup.
+		use arm64 && tc-is-gcc && filter-flags '-march=*' '-mcpu=*'
+	fi
+
+	export NINJAFLAGS=$(get_NINJAOPTS)
+	[[ ${NINJA_VERBOSE^^} == OFF ]] || NINJAFLAGS+=" -v"
+
+	local -x EXTRA_GN="${mygnargs[*]} ${EXTRA_GN}"
+	einfo "Extra Gn args: ${EXTRA_GN}"
+
+	qt6-build_src_configure
+}
+
+src_compile() {
+	# tentatively work around a possible (rare) race condition (bug #921680)
+	cmake_build WebEngineCore_sync_all_public_headers
+
+	cmake_src_compile
+}
+
+src_test() {
+	if [[ ${EUID} == 0 ]]; then
+		# almost every tests fail, so skip entirely
+		ewarn "Skipping tests due to running as root (chromium refuses this configuration)."
+		return
+	fi
+
+	local CMAKE_SKIP_TESTS=(
+		# fails with network sandbox
+		tst_certificateerror
+		tst_loadsignals
+		tst_qquickwebengineview
+		tst_qwebengineglobalsettings
+		tst_qwebengineview
+		# fails with offscreen rendering, may be worth retrying if the issue
+		# persist given these are rather major tests (or consider virtx)
+		tst_qmltests
+		tst_qwebenginepage
+		# certs verfication seems flaky and gives expiration warnings
+		tst_qwebengineclientcertificatestore
+		# test is misperformed when qtbase is built USE=-test?
+		tst_touchinput
+		# currently requires webenginedriver to be already installed
+		tst_webenginedriver
+	)
+
+	# prevent using the system's qtwebengine
+	# (use glob to avoid unnecessary complications with arch dir)
+	local resources=( "${BUILD_DIR}/src/core/${CMAKE_BUILD_TYPE}/"* )
+	[[ -d ${resources[0]} ]] || die "invalid resources path: ${resources[0]}"
+	local -x QTWEBENGINEPROCESS_PATH=${BUILD_DIR}${QT6_LIBEXECDIR#"${QT6_PREFIX}"}/QtWebEngineProcess
+	local -x QTWEBENGINE_LOCALES_PATH=${resources[0]}/qtwebengine_locales
+	local -x QTWEBENGINE_RESOURCES_PATH=${resources[0]}
+
+	# random failures in several tests without -j1
+	qt6-build_src_test -j1
+}
+
+src_install() {
+	qt6-build_src_install
+
+	[[ -e ${D}${QT6_LIBDIR}/libQt6WebEngineCore.so ]] || #601472
+		die "${CATEGORY}/${PF} failed to build anything. Please report to https://bugs.gentoo.org/"
+
+	if use test && use webdriver; then
+		rm -- "${D}${QT6_BINDIR}"/testbrowser || die
+	fi
+}
+
+pkg_postinst() {
+	# plugin may also be found in $HOME if provided by chrome or firefox
+	use amd64 &&
+		optfeature "Widevine DRM support (protected media playback)" \
+			www-plugins/chrome-binary-plugins
+
+	elog
+	elog "This version of Qt WebEngine is based on Chromium version ${QT6_CHROMIUM_VER}, with"
+	elog "additional security fixes up to ${QT6_CHROMIUM_PATCHES_VER}. Extensive as it is, the"
+	elog "list of backports is impossible to evaluate, but always bound to be behind"
+	elog "Chromium's release schedule."
+	elog
+	elog "In addition, various online services may deny service based on an outdated"
+	elog "user agent version (and/or other checks). Google is already known to do so."
+	elog
+	elog "tl;dr your web browsing experience will be compromised."
+}