Meta+WebContent+LibWeb: Add, link and initialize SDL3

Author: https://github.com/Lubrsi
Commit: https://github.com/LadybirdBrowser/ladybird/commit/50dcd8fc850
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5902
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/trflynn89

Libraries/LibWeb/CMakeLists.txt

@@ -1,6 +1,7 @@
 include(libweb_generators)
 include(vulkan)
 include(skia)
+include(SDL3)
 
 find_package(unofficial-angle CONFIG)
 if(unofficial-angle_FOUND)
@@ -1084,7 +1085,7 @@ set(GENERATED_SOURCES
 
 ladybird_lib(LibWeb web EXPLICIT_SYMBOL_EXPORT)
 
-target_link_libraries(LibWeb PRIVATE LibCore LibCompress LibCrypto LibJS LibHTTP LibGfx LibIPC LibRegex LibSyntax LibTextCodec LibUnicode LibMedia LibWasm LibXML LibIDL LibURL LibTLS LibRequests LibGC LibThreading skia ${ANGLE_TARGETS})
+target_link_libraries(LibWeb PRIVATE LibCore LibCompress LibCrypto LibJS LibHTTP LibGfx LibIPC LibRegex LibSyntax LibTextCodec LibUnicode LibMedia LibWasm LibXML LibIDL LibURL LibTLS LibRequests LibGC LibThreading skia ${ANGLE_TARGETS} SDL3::SDL3)
 
 # FIXME: https://github.com/microsoft/vcpkg/issues/42324
 target_include_directories(LibWeb PRIVATE ${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/include)

Meta/CMake/SDL3.cmake

@@ -0,0 +1,3 @@
+include_guard()
+
+find_package(SDL3 CONFIG REQUIRED)

Meta/CMake/flatpak/org.ladybird.Ladybird.json

@@ -9,6 +9,7 @@
   "command": "Ladybird",
   "finish-args": [
     "--device=dri",
+    "--device=input",
     "--share=ipc",
     "--share=network",
     "--socket=wayland",
@@ -506,6 +507,22 @@
           "-DFASTFLOAT_INSTALL=ON"
         ]
     },
+    {
+      "name": "sdl3",
+      "buildsystem": "cmake-ninja",
+      "sources": [
+        {
+          "type": "git",
+          "url": "https://github.com/libsdl-org/SDL.git",
+          "tag": "release-3.2.20"
+        }
+      ],
+      "config-opts": [
+        "-DCMAKE_BUILD_TYPE=Release",
+        "-DCMAKE_PREFIX_PATH=/app",
+        "-DCMAKE_INSTALL_LIBDIR=lib"
+      ]
+    },
     {
       "name": "Ladybird",
       "buildsystem": "cmake-ninja",

Services/WebContent/CMakeLists.txt

@@ -1,4 +1,5 @@
 include(audio)
+include(SDL3)
 
 set(SOURCES
     ConnectionFromClient.cpp
@@ -31,6 +32,7 @@ target_include_directories(webcontentservice PUBLIC $<BUILD_INTERFACE:${LADYBIRD
 
 target_link_libraries(webcontentservice PUBLIC LibCore LibCrypto LibFileSystem LibGfx LibIPC LibJS LibMain LibMedia LibWeb LibWebSocket LibRequests LibWebView LibImageDecoderClient LibGC)
 target_link_libraries(webcontentservice PRIVATE OpenSSL::Crypto OpenSSL::SSL)
+target_link_libraries(webcontentservice PRIVATE SDL3::SDL3)
 
 if (ENABLE_QT AND NOT DEFINED LADYBIRD_AUDIO_BACKEND)
     find_package(Qt6 REQUIRED COMPONENTS Multimedia)

Services/WebContent/main.cpp

@@ -48,6 +48,8 @@
 #    include <LibCore/Platform/ProcessStatisticsMach.h>
 #endif
 
+#include <SDL3/SDL_init.h>
+
 static ErrorOr<void> load_content_filters(StringView config_path);
 
 static ErrorOr<void> initialize_resource_loader(GC::Heap&, int request_server_socket);
@@ -60,6 +62,12 @@ ErrorOr<int> ladybird_main(Main::Arguments arguments)
 {
     AK::set_rich_debug_enabled(true);
 
+    // SDL is used for the Gamepad API.
+    if (!SDL_Init(SDL_INIT_GAMEPAD)) {
+        dbgln("Failed to initialize SDL3: {}", SDL_GetError());
+        return -1;
+    }
+
 #if defined(HAVE_QT_MULTIMEDIA)
     QCoreApplication app(arguments.argc, arguments.argv);
 

vcpkg.json

@@ -25,6 +25,11 @@
         "zstd"
       ]
     },
+    {
+      "name": "dbus",
+      "default-features": false,
+      "platform": "linux"
+    },
     {
       "name": "dirent",
       "platform": "windows"
@@ -151,6 +156,10 @@
       "name": "pthread",
       "platform": "windows"
     },
+    {
+      "name": "sdl3",
+      "default-features": false
+    },
     "simdutf",
     {
       "name": "skia",
@@ -201,6 +210,10 @@
       "name": "curl",
       "version": "8.15.0#1"
     },
+    {
+      "name": "dbus",
+      "version": "1.16.2#1"
+    },
     {
       "name": "dirent",
       "version": "1.25#0"
@@ -269,6 +282,10 @@
       "name": "qtmultimedia",
       "version": "6.8.3#0"
     },
+    {
+      "name": "sdl3",
+      "version": "3.2.20#0"
+    },
     {
       "name": "simdutf",
       "version": "7.4.0#0"