package/webkitgtk: add libgtk4 support

WebKitGTK defaults on GTK4 since version 2.44 [1],
and the libgtk4 package was added in commit faf2a1d,
so start using it. Note that webkitgtk-6.0 is the new API
if compile with GTK4 [2].

[1] https://webkitgtk.org/2024/03/27/webkigit-2.44.html
[2] https://webkitgtk.org/reference/webkitgtk/stable/migrating-to-webkitgtk-6.0.html

Signed-off-by: Thomas Devoogdt <thomas@devoogdt.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 11dcd7bd5329608f85036dd65fe9c706c54ea8cb)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/webkitgtk/Config.in

@@ -16,11 +16,12 @@ config BR2_PACKAGE_WEBKITGTK_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on BR2_PACKAGE_LIBGPG_ERROR_ARCH_SUPPORTS # libgcrypt
 
-comment "webkitgtk needs libgtk3 and a toolchain w/ C++, wchar, NPTL, dynamic library, gcc >= 11, host gcc >= 4.9"
+comment "webkitgtk needs libgtk3 or libgtk4 and a toolchain w/ C++, wchar, NPTL, dynamic library, gcc >= 11, host gcc >= 4.9"
 	depends on BR2_PACKAGE_WEBKITGTK_ARCH_SUPPORTS
 	depends on !BR2_BINFMT_FLAT
-	depends on !BR2_PACKAGE_LIBGTK3 || !BR2_INSTALL_LIBSTDCPP || \
-		!BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS || \
+	depends on (!BR2_PACKAGE_LIBGTK3 && !BR2_PACKAGE_LIBGTK4) || \
+		!BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR || \
+		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_11 || \
 		!BR2_HOST_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
@@ -35,7 +36,7 @@ config BR2_PACKAGE_WEBKITGTK
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_11
 	depends on BR2_USE_WCHAR # icu, libsoup3
-	depends on BR2_PACKAGE_LIBGTK3
+	depends on BR2_PACKAGE_LIBGTK3 || BR2_PACKAGE_LIBGTK4
 	depends on BR2_PACKAGE_WEBKITGTK_ARCH_SUPPORTS
 	select BR2_PACKAGE_CAIRO
 	select BR2_PACKAGE_CAIRO_PNG
@@ -55,10 +56,10 @@ config BR2_PACKAGE_WEBKITGTK
 	select BR2_PACKAGE_WEBP_DEMUX
 	select BR2_PACKAGE_WEBP_MUX
 	select BR2_PACKAGE_WOFF2
-	select BR2_PACKAGE_XLIB_LIBXCOMPOSITE if BR2_PACKAGE_LIBGTK3_X11
-	select BR2_PACKAGE_XLIB_LIBXDAMAGE if BR2_PACKAGE_LIBGTK3_X11
-	select BR2_PACKAGE_XLIB_LIBXRENDER if BR2_PACKAGE_LIBGTK3_X11
-	select BR2_PACKAGE_XLIB_LIBXT if BR2_PACKAGE_LIBGTK3_X11
+	select BR2_PACKAGE_XLIB_LIBXCOMPOSITE if BR2_PACKAGE_WEBKITGTK_X11
+	select BR2_PACKAGE_XLIB_LIBXDAMAGE if BR2_PACKAGE_WEBKITGTK_X11
+	select BR2_PACKAGE_XLIB_LIBXRENDER if BR2_PACKAGE_WEBKITGTK_X11
+	select BR2_PACKAGE_XLIB_LIBXT if BR2_PACKAGE_WEBKITGTK_X11
 	help
 	  WebKit is an open source, standards compliant web browser
 	  engine.
@@ -67,6 +68,22 @@ config BR2_PACKAGE_WEBKITGTK
 
 if BR2_PACKAGE_WEBKITGTK
 
+comment "webkitgtk X11 target needs the X11 GDK backend"
+	depends on !BR2_PACKAGE_LIBGTK3_X11 && !BR2_PACKAGE_LIBGTK4_X11
+
+config BR2_PACKAGE_WEBKITGTK_X11
+	bool "enable x11 target"
+	default y
+	depends on BR2_PACKAGE_LIBGTK3_X11 || BR2_PACKAGE_LIBGTK4_X11
+
+comment "webkitgtk Wayland target needs the Wayland GDK backend"
+	depends on !BR2_PACKAGE_LIBGTK3_WAYLAND && !BR2_PACKAGE_LIBGTK4_WAYLAND
+
+config BR2_PACKAGE_WEBKITGTK_WAYLAND
+	bool "enable wayland target"
+	default y
+	depends on BR2_PACKAGE_LIBGTK3_WAYLAND || BR2_PACKAGE_LIBGTK4_WAYLAND
+
 config BR2_PACKAGE_WEBKITGTK_SANDBOX
 	bool "sandboxing support"
 	depends on BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS # libseccomp

package/webkitgtk/webkitgtk.mk

@@ -14,7 +14,7 @@ WEBKITGTK_LICENSE_FILES = \
 	Source/WebCore/LICENSE-LGPL-2.1
 WEBKITGTK_CPE_ID_VENDOR = webkitgtk
 WEBKITGTK_DEPENDENCIES = host-ruby host-python3 host-gperf host-unifdef \
-	enchant harfbuzz icu jpeg libegl libepoxy libgcrypt libgtk3 libsecret \
+	enchant harfbuzz icu jpeg libegl libepoxy libgcrypt libsecret \
 	libsoup3 libtasn1 libxml2 libxslt sqlite webp woff2
 
 WEBKITGTK_CMAKE_BACKEND = ninja
@@ -28,12 +28,19 @@ WEBKITGTK_CONF_OPTS = \
 	-DENABLE_WEB_RTC=OFF \
 	-DPORT=GTK \
 	-DUSE_AVIF=OFF \
-	-DUSE_GTK4=OFF \
 	-DUSE_LIBHYPHEN=OFF \
 	-DUSE_SKIA=OFF \
 	-DUSE_SYSTEM_SYSPROF_CAPTURE=OFF \
 	-DUSE_WOFF2=ON
 
+ifeq ($(BR2_PACKAGE_LIBGTK4),y)
+WEBKITGTK_CONF_OPTS += -DUSE_GTK4=ON
+WEBKITGTK_DEPENDENCIES += libgtk4
+else
+WEBKITGTK_CONF_OPTS += -DUSE_GTK4=OFF
+WEBKITGTK_DEPENDENCIES += libgtk3
+endif
+
 ifeq ($(BR2_PACKAGE_WEBKITGTK_SANDBOX),y)
 WEBKITGTK_CONF_OPTS += \
 	-DENABLE_BUBBLEWRAP_SANDBOX=ON \
@@ -64,9 +71,15 @@ WEBKITGTK_CONF_OPTS += -DENABLE_WEBDRIVER=OFF
 endif
 
 ifeq ($(BR2_PACKAGE_WEBKITGTK_MINIBROWSER),y)
+ifeq ($(BR2_PACKAGE_LIBGTK4),y)
+define WEBKITGTK_INSTALL_MINIBROWSER_SYMLINK
+	ln -sf ../libexec/webkitgtk-6.0/MiniBrowser $(TARGET_DIR)/usr/bin/MiniBrowser
+endef
+else
 define WEBKITGTK_INSTALL_MINIBROWSER_SYMLINK
 	ln -sf ../libexec/webkit2gtk-4.1/MiniBrowser $(TARGET_DIR)/usr/bin/MiniBrowser
 endef
+endif
 WEBKITGTK_POST_INSTALL_TARGET_HOOKS += WEBKITGTK_INSTALL_MINIBROWSER_SYMLINK
 WEBKITGTK_CONF_OPTS += -DENABLE_MINIBROWSER=ON
 else
@@ -129,7 +142,7 @@ else
 WEBKITGTK_CONF_OPTS += -DUSE_GBM=OFF
 endif
 
-ifeq ($(BR2_PACKAGE_LIBGTK3_X11),y)
+ifeq ($(BR2_PACKAGE_WEBKITGTK_X11),y)
 WEBKITGTK_CONF_OPTS += -DENABLE_X11_TARGET=ON
 WEBKITGTK_DEPENDENCIES += libgl \
 	xlib_libXcomposite xlib_libXdamage xlib_libXrender xlib_libXt
@@ -137,7 +150,7 @@ else
 WEBKITGTK_CONF_OPTS += -DENABLE_X11_TARGET=OFF
 endif
 
-ifeq ($(BR2_PACKAGE_LIBGTK3_WAYLAND),y)
+ifeq ($(BR2_PACKAGE_WEBKITGTK_WAYLAND),y)
 WEBKITGTK_CONF_OPTS += -DENABLE_WAYLAND_TARGET=ON
 else
 WEBKITGTK_CONF_OPTS += -DENABLE_WAYLAND_TARGET=OFF