Add QtWebEngineCore module cmake build

Create QtWebEngineCore, QtWebEngineProcess and drive
headers sync from the libs project.

Main project build should not generate any header files,
since the logic in qtbase assumes fixed QT_BUILD_DIR, which is
by default CMAKE_BINARY_DIR for prefix builds. Drive all syncqt
calls from the libs project and leave the main build
just for the feature evolution and the build summary reporting.

This fixes header installation issues, however this patch
requires also sync.profile update which is done later, to keep
the qmake build still functional.

Note this patch only adds debug builds for linux.

Task-number: QTBUG-91760
Change-Id: I516c26206baa1cf6b966629a694dadce7f79dbec
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 164 insertions, 17 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index bdb937e19..77aab9364 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -1,19 +1,20 @@
 cmake_minimum_required(VERSION 3.18.0)
 
-project(QtWebEngineCore
-    VERSION "6.0.0"
-    DESCRIPTION "QtWebEngineCore"
-    HOMEPAGE_URL "https://doc.qt.io/qt-5/qtwebenginecore-module.html"
-    LANGUAGES CXX C)
-
-if (NOT DEFINED CMAKE_WEBENGINE_ROOT_BUILD_PATH)
-    get_filename_component(CMAKE_WEBENGINE_ROOT_BUILD_PATH ${CMAKE_CURRENT_BINARY_DIR}/../.. ABSOLUTE)
+if(NOT DEFINED WEBENGINE_ROOT_SOURCE_DIR)
+    get_filename_component(WEBENGINE_ROOT_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/../.." ABSOLUTE)
+endif()
+if (NOT DEFINED WEBENGINE_ROOT_BUILD_DIR)
+    get_filename_component(WEBENGINE_ROOT_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/../.." ABSOLUTE)
 endif()
 
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/../../cmake")
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${WEBENGINE_ROOT_SOURCE_DIR}/cmake")
 set(buildDir "${CMAKE_CURRENT_BINARY_DIR}/debug")
 
-include(${PROJECT_SOURCE_DIR}/../../cmake/Functions.cmake)
+include(${WEBENGINE_ROOT_SOURCE_DIR}/cmake/Functions.cmake)
+
+assertRunAsTopLevelBuild(TRUE)
+
+add_subdirectory(api)
 
 get_qt_features(featureList webengine)
 message(${featureList})
@@ -24,15 +25,119 @@ find_package(Gn REQUIRED)
 find_package(Ninja REQUIRED)
 find_package(Python2 REQUIRED)
 
-qt_build_repo_begin()
+get_target_property(qtWebEngineProcessName Qt6::WebEngineCore QTWEBENGINEPROCESS_NAME)
 
 include(generator.cmake)
-configure_file(${PROJECT_SOURCE_DIR}/configure/BUILD.toolchain.gn.in ${buildDir}/toolchain/BUILD.gn @ONLY)
-configure_file(${PROJECT_SOURCE_DIR}/configure/BUILD.root.gn.in ${buildDir}/BUILD.gn @ONLY)
+configure_file(${WEBENGINE_ROOT_SOURCE_DIR}/src/core/configure/BUILD.toolchain.gn.in ${buildDir}/toolchain/BUILD.gn @ONLY)
+configure_file(${WEBENGINE_ROOT_SOURCE_DIR}/src/core/configure/BUILD.root.gn.in ${buildDir}/BUILD.gn @ONLY)
 
 get_target_property(gnCmd Gn::gn IMPORTED_LOCATION)
 
-set(gnArg help)
+set(gnArg gen ${buildDir})
+
+list(APPEND gnArg
+     --script-executable=${Python2_EXECUTABLE}
+     --root=${WEBENGINE_ROOT_SOURCE_DIR}/src/3rdparty/chromium)
+
+list(APPEND gnArgArg
+     use_qt=true
+     init_stack_vars=false
+     is_component_build=false
+     is_shared=true
+     enable_debugallocation=false
+     enable_media_remoting=false
+     enable_message_center=false
+     enable_nacl=false
+     enable_remoting=false
+     enable_reporting=false
+     enable_resource_allowlist_generation=false
+     enable_swiftshader=false
+     enable_swiftshader_vulkan=false
+     angle_enable_swiftshader=false
+     enable_web_speech=false
+     enable_widevine=true
+     forbid_non_component_debug_builds=false
+     has_native_accessibility=false
+     safe_browsing_mode=0
+     skia_use_dawn=false
+     toolkit_views=false
+     treat_warnings_as_errors=false
+     use_allocator_shim=false
+     use_allocator="none"
+     use_custom_libcxx=false
+     chrome_pgo_phase=0
+     enable_hangout_services_extension=false
+     optimize_webui=false
+     enable_js_type_check=false
+     v8_use_external_startup_data=false
+     strip_absolute_paths_from_debug_symbols=false
+     use_jumbo_build=true
+     jumbo_file_merge_limit=8
+     jumbo_build_excluded=["browser"]
+     enable_precompiled_headers=false
+     is_official_build=false
+     is_unsafe_developer_build=false
+     from_here_uses_location_builtins=false
+     is_debug=true use_debug_fission=false
+     blink_symbol_level=0
+     remove_v8base_debug_symbols=true
+     use_cups=false
+     use_gio=false
+     use_gnome_keyring=false
+     use_udev=true
+     use_bundled_fontconfig=false
+     use_sysroot=false
+     enable_session_service=false
+     is_cfi=false
+     use_ozone=true
+     use_x11=false
+     ozone_auto_platforms=false
+     ozone_platform_headless=false
+     ozone_platform_external=true
+     ozone_platform="qt"
+     ozone_extra_path="${CMAKE_CURRENT_LIST_DIR}/ozone/ozone_extra.gni"
+     use_gold=false
+     use_lld=true
+     is_clang=false
+     custom_toolchain="${buildDir}/toolchain:target"
+     host_toolchain="${buildDir}/toolchain:host"
+     host_cpu="x64"
+     pkg_config="pkg-config"
+     host_pkg_config="/usr/bin/pkg-config"
+     use_system_zlib=true
+     use_system_minizip=true
+     pdfium_use_system_zlib=true
+     use_system_libpng=true
+     pdfium_use_system_libpng=true
+     use_system_libjpeg=true
+     use_system_freetype=true
+     use_system_harfbuzz=false
+     use_glib=false
+     enable_basic_printing=false
+     enable_print_preview=false
+     enable_pdf=false
+     enable_plugins=false
+     enable_spellcheck=false
+     enable_webrtc=false
+     proprietary_codecs=false
+     enable_extensions=false
+     use_kerberos=false
+     use_pulseaudio=true
+     use_alsa=true
+     ozone_platform_x11=true
+     use_xkbcommon=true
+     use_xscrnsaver=true
+     rtc_use_x11=true
+     use_system_libevent=true
+     use_system_libwebp=true
+     use_system_opus=true
+     use_system_snappy=true
+     use_system_libvpx=true
+     use_system_re2=true
+     use_system_lcms2=true
+     qtwebengine_target="${buildDir}:QtWebEngineCore")
+list(JOIN gnArgArg " " gnArgArg)
+list(APPEND gnArg "--args=${gnArgArg}")
 
 message("configure with gn")
 execute_process(
@@ -48,19 +153,61 @@ if(NOT gnResult EQUAL 0)
     message(FATAL_ERROR "Calling gn - FAILED ! \n${gnOutput}\n${gnError}")
 endif()
 
+message("CMD: ${gnCmd}\nARGS: ${gnArg}\nOUTPUT: ${gnOutput}")
+
+include(${buildDir}/QtWebEngineCore.cmake)
+
 add_custom_command(
     OUTPUT QtWebEngineCore.stamp
     WORKING_DIRECTORY ${buildDir}
     COMMAND Ninja::ninja
             $ENV{NINJAFLAGS}
             -C ${buildDir}
-            ${CMAKE_PROJECT_NAME}
+            QtWebEngineCore
     USES_TERMINAL
     VERBATIM
 )
 add_custom_target(ninja ALL DEPENDS QtWebEngineCore.stamp)
 
-message("CMD: ${gn_cmd}\nARGS: ${gnArg}\nOUTPUT: ${gnOutput}")
+add_dependencies(WebEngineCore ninja)
+target_include_directories(WebEngineCore PRIVATE ${buildDir}/gen)
+
+# there is no syncqt on this module so use includes provided for gn, which should be identical
+target_include_directories(WebEngineCore PRIVATE ${GN_INCLUDES_IN})
+add_library(chromiumObjects OBJECT IMPORTED GLOBAL)
+set_property(TARGET chromiumObjects PROPERTY IMPORTED_OBJECTS ${NINJA_OBJECTS})
+target_link_libraries(WebEngineCore PRIVATE chromiumObjects)
+target_link_libraries(WebEngineCore PRIVATE ${NINJA_ARCHIVES})
+target_link_libraries(WebEngineCore PUBLIC ${NINJA_LIBS})
+
+#
+# RESOURCES
+#
+
+#TODO: use simply filter / globbing-expressions
+set(localeList am ar bg bn ca cs da de el en-GB en-US es-419 es et fa fi fil fr
+    gu he hi hr hu id it ja kn ko lt lv ml mr ms nb nl pl pt-BR pt-PT ro ru sk
+    sl sr sv sw ta te th tr uk vi zh-CN zh-TW)
+
+foreach(loc ${localeList})
+    get_filename_component(locSourcePath ${buildDir}/qtwebengine_locales/${loc}.pak ABSOLUTE)
+    LIST(APPEND localeFiles ${locSourcePath})
+endforeach()
+
+set(resourceList qtwebengine_resources.pak
+                  qtwebengine_resources_100p.pak
+                  qtwebengine_resources_200p.pak
+                  qtwebengine_devtools_resources.pak)
+
+foreach(res ${resourceList})
+    get_filename_component(resSourcePath ${buildDir}/${res} ABSOLUTE)
+    LIST(APPEND resourceFiles ${resSourcePath})
+endforeach()
+
+
+get_filename_component(icuFiles ${buildDir}/icudtl.dat ABSOLUTE)
 
-qt_build_repo_end()
+install(FILES ${localeFiles} DESTINATION ${INSTALL_DATADIR}/translations/qtwebengine_locales)
+install(FILES ${resourceFiles} DESTINATION ${INSTALL_DATADIR}/resources)
+install(FILES ${icuFiles} DESTINATION ${INSTALL_DATADIR}/resources)