LibWeb: Stub MediaCapabilities IDL interface

Author: https://github.com/jamierocks
Commit: https://github.com/LadybirdBrowser/ladybird/commit/4c5a1763546
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1283
Reviewed-by: https://github.com/tcl3 ✅

Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp

@@ -4197,6 +4197,7 @@ static void generate_using_namespace_definitions(SourceGenerator& generator)
     using namespace Web::IndexedDB;
     using namespace Web::Internals;
     using namespace Web::IntersectionObserver;
+    using namespace Web::MediaCapabilitiesAPI;
     using namespace Web::NavigationTiming;
     using namespace Web::PerformanceTimeline;
     using namespace Web::RequestIdleCallback;

Tests/LibWeb/Text/expected/all-window-properties.txt

@@ -206,6 +206,7 @@ KeyframeEffect
 Location
 Map
 MathMLElement
+MediaCapabilities
 MediaError
 MediaList
 MediaQueryList

Userland/Libraries/LibWeb/CMakeLists.txt

@@ -548,6 +548,7 @@ set(SOURCES
     Loader/ResourceLoader.cpp
     MathML/MathMLElement.cpp
     MathML/TagNames.cpp
+    MediaCapabilitiesAPI/MediaCapabilities.cpp
     MimeSniff/MimeType.cpp
     MimeSniff/Resource.cpp
     MixedContent/AbstractOperations.cpp

Userland/Libraries/LibWeb/Forward.h

@@ -592,6 +592,10 @@ namespace Web::MathML {
 class MathMLElement;
 }
 
+namespace Web::MediaCapabilitiesAPI {
+class MediaCapabilities;
+}
+
 namespace Web::MimeSniff {
 class MimeType;
 }

Userland/Libraries/LibWeb/MediaCapabilitiesAPI/MediaCapabilities.cpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/MediaCapabilitiesPrototype.h>
+#include <LibWeb/HTML/Window.h>
+#include <LibWeb/MediaCapabilitiesAPI/MediaCapabilities.h>
+
+namespace Web::MediaCapabilitiesAPI {
+
+JS_DEFINE_ALLOCATOR(MediaCapabilities);
+
+JS::NonnullGCPtr<MediaCapabilities> MediaCapabilities::create(JS::Realm& realm)
+{
+    return realm.heap().allocate<MediaCapabilities>(realm, realm);
+}
+
+MediaCapabilities::MediaCapabilities(JS::Realm& realm)
+    : PlatformObject(realm)
+{
+}
+
+void MediaCapabilities::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(MediaCapabilities);
+}
+
+}

Userland/Libraries/LibWeb/MediaCapabilitiesAPI/MediaCapabilities.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/PlatformObject.h>
+
+namespace Web::MediaCapabilitiesAPI {
+
+class MediaCapabilities final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(MediaCapabilities, Bindings::PlatformObject);
+    JS_DECLARE_ALLOCATOR(MediaCapabilities);
+
+public:
+    static JS::NonnullGCPtr<MediaCapabilities> create(JS::Realm&);
+    virtual ~MediaCapabilities() override = default;
+
+private:
+    MediaCapabilities(JS::Realm&);
+
+    virtual void initialize(JS::Realm&) override;
+};
+
+}

Userland/Libraries/LibWeb/MediaCapabilitiesAPI/MediaCapabilities.idl

@@ -0,0 +1,6 @@
+// https://w3c.github.io/media-capabilities/#mediacapabilities
+[Exposed=(Window, Worker)]
+interface MediaCapabilities {
+    [FIXME, NewObject] Promise<MediaCapabilitiesDecodingInfo> decodingInfo(MediaDecodingConfiguration configuration);
+    [FIXME, NewObject] Promise<MediaCapabilitiesEncodingInfo> encodingInfo(MediaEncodingConfiguration configuration);
+};

Userland/Libraries/LibWeb/idl_files.cmake

@@ -242,6 +242,7 @@ libweb_js_bindings(Internals/Internals)
 libweb_js_bindings(IntersectionObserver/IntersectionObserver)
 libweb_js_bindings(IntersectionObserver/IntersectionObserverEntry)
 libweb_js_bindings(MathML/MathMLElement)
+libweb_js_bindings(MediaCapabilitiesAPI/MediaCapabilities)
 libweb_js_bindings(NavigationTiming/PerformanceNavigation)
 libweb_js_bindings(NavigationTiming/PerformanceTiming)
 libweb_js_bindings(PerformanceTimeline/PerformanceEntry)