LibWeb: Implement TrustedScriptURL class

Author: https://github.com/tete17
Commit: adaad653ca
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5668
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/Lubrsi ✅
Reviewed-by: https://github.com/tcl3

Libraries/LibWeb/CMakeLists.txt

@@ -899,6 +899,7 @@ set(SOURCES
     SVG/ViewBox.cpp
     TrustedTypes/TrustedHTML.cpp
     TrustedTypes/TrustedScript.cpp
+    TrustedTypes/TrustedScriptURL.cpp
     TrustedTypes/TrustedTypePolicy.cpp
     TrustedTypes/TrustedTypePolicyFactory.cpp
     UIEvents/CompositionEvent.cpp

Libraries/LibWeb/Forward.h

@@ -1222,6 +1222,7 @@ namespace Web::TrustedTypes {
 
 class TrustedHTML;
 class TrustedScript;
+class TrustedScriptURL;
 class TrustedTypePolicy;
 class TrustedTypePolicyFactory;
 struct TrustedTypePolicyOptions;

Libraries/LibWeb/TrustedTypes/TrustedScriptURL.cpp

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2025, Miguel Sacristán Izcue <miguel_tete17@hotmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/TrustedTypes/TrustedScriptURL.h>
+
+#include <LibGC/Ptr.h>
+#include <LibJS/Runtime/Realm.h>
+#include <LibWeb/Bindings/Intrinsics.h>
+
+namespace Web::TrustedTypes {
+
+GC_DEFINE_ALLOCATOR(TrustedScriptURL);
+
+TrustedScriptURL::TrustedScriptURL(JS::Realm& realm, Utf16String data)
+    : PlatformObject(realm)
+    , m_data(move(data))
+{
+}
+
+void TrustedScriptURL::initialize(JS::Realm& realm)
+{
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(TrustedScriptURL);
+    Base::initialize(realm);
+}
+
+// https://w3c.github.io/trusted-types/dist/spec/#trustedscripturl-stringification-behavior
+Utf16String const& TrustedScriptURL::to_string() const
+{
+    // 1. return the associated data value.
+    return m_data;
+}
+
+// https://w3c.github.io/trusted-types/dist/spec/#dom-trustedscripturl-tojson
+Utf16String const& TrustedScriptURL::to_json() const
+{
+    // 1. return the associated data value.
+    return to_string();
+}
+
+}

Libraries/LibWeb/TrustedTypes/TrustedScriptURL.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2025, Miguel Sacristán Izcue <miguel_tete17@hotmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibJS/Forward.h>
+#include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/Bindings/TrustedScriptURLPrototype.h>
+
+namespace Web::TrustedTypes {
+
+class TrustedScriptURL final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(TrustedScriptURL, Bindings::PlatformObject);
+    GC_DECLARE_ALLOCATOR(TrustedScriptURL);
+
+public:
+    virtual ~TrustedScriptURL() override = default;
+
+    Utf16String const& to_string() const;
+    Utf16String const& to_json() const;
+
+private:
+    explicit TrustedScriptURL(JS::Realm&, Utf16String);
+    virtual void initialize(JS::Realm&) override;
+
+    Utf16String const m_data;
+};
+
+}

Libraries/LibWeb/TrustedTypes/TrustedScriptURL.idl

@@ -0,0 +1,6 @@
+// https://w3c.github.io/trusted-types/dist/spec/#trused-script-url
+[Exposed=(Window,Worker)]
+interface TrustedScriptURL {
+    stringifier;
+    Utf16DOMString toJSON();
+};

Libraries/LibWeb/idl_files.cmake

@@ -330,6 +330,7 @@ libweb_js_bindings(Streams/WritableStreamDefaultController)
 libweb_js_bindings(Streams/WritableStreamDefaultWriter)
 libweb_js_bindings(TrustedTypes/TrustedHTML)
 libweb_js_bindings(TrustedTypes/TrustedScript)
+libweb_js_bindings(TrustedTypes/TrustedScriptURL)
 libweb_js_bindings(TrustedTypes/TrustedTypePolicy)
 libweb_js_bindings(TrustedTypes/TrustedTypePolicyFactory)
 libweb_js_bindings(SVG/SVGAElement)

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

@@ -118,6 +118,7 @@ static bool is_platform_object(Type const& type)
         "TimeRanges"sv,
         "TrustedHTML"sv,
         "TrustedScript"sv,
+        "TrustedScriptURL"sv,
         "TrustedTypePolicy"sv,
         "TrustedTypePolicyFactory"sv,
         "URLSearchParams"sv,

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

@@ -434,6 +434,7 @@ TransitionEvent
 TreeWalker
 TrustedHTML
 TrustedScript
+TrustedScriptURL
 TrustedTypePolicy
 TrustedTypePolicyFactory
 TypeError