LibWeb: Implement the MediaError IDL interface

Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/73a80b7047
Pull-request: https://github.com/SerenityOS/serenity/pull/18468
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibWeb/CMakeLists.txt

@@ -309,6 +309,7 @@ set(SOURCES
     HTML/HTMLVideoElement.cpp
     HTML/ImageData.cpp
     HTML/Location.cpp
+    HTML/MediaError.cpp
     HTML/MessageChannel.cpp
     HTML/MessageEvent.cpp
     HTML/MessagePort.cpp

Userland/Libraries/LibWeb/Forward.h

@@ -365,6 +365,7 @@ class HTMLUnknownElement;
 class HTMLVideoElement;
 class ImageData;
 class Location;
+class MediaError;
 class MessageChannel;
 class MessageEvent;
 class MessagePort;

Userland/Libraries/LibWeb/HTML/MediaError.cpp

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/Realm.h>
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/MediaErrorPrototype.h>
+#include <LibWeb/HTML/MediaError.h>
+
+namespace Web::HTML {
+
+MediaError::MediaError(JS::Realm& realm, Code code, String message)
+    : Base(realm)
+    , m_code(code)
+    , m_message(move(message))
+{
+}
+
+JS::ThrowCompletionOr<void> MediaError::initialize(JS::Realm& realm)
+{
+    MUST_OR_THROW_OOM(Base::initialize(realm));
+    set_prototype(&Bindings::ensure_web_prototype<Bindings::MediaErrorPrototype>(realm, "MediaError"));
+
+    return {};
+}
+
+}

Userland/Libraries/LibWeb/HTML/MediaError.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/String.h>
+#include <LibJS/Forward.h>
+#include <LibWeb/Bindings/PlatformObject.h>
+
+namespace Web::HTML {
+
+class MediaError final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(MediaError, Bindings::PlatformObject);
+
+public:
+    enum class Code : u16 {
+        Aborted = 1,
+        Network = 2,
+        Decode = 3,
+        SrcNotSupported = 4,
+    };
+
+    Code code() const { return m_code; }
+    String const& message() const { return m_message; }
+
+private:
+    MediaError(JS::Realm&, Code code, String message);
+
+    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+
+    // https://html.spec.whatwg.org/multipage/media.html#dom-mediaerror-code
+    Code m_code;
+
+    // https://html.spec.whatwg.org/multipage/media.html#dom-mediaerror-message
+    String m_message;
+};
+
+}

Userland/Libraries/LibWeb/HTML/MediaError.idl

@@ -0,0 +1,11 @@
+// https://html.spec.whatwg.org/multipage/media.html#mediaerror
+[Exposed=Window]
+interface MediaError {
+    const unsigned short MEDIA_ERR_ABORTED = 1;
+    const unsigned short MEDIA_ERR_NETWORK = 2;
+    const unsigned short MEDIA_ERR_DECODE = 3;
+    const unsigned short MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+
+    readonly attribute unsigned short code;
+    readonly attribute DOMString message;
+};

Userland/Libraries/LibWeb/idl_files.cmake

@@ -152,6 +152,7 @@ libweb_js_bindings(HTML/HTMLUnknownElement)
 libweb_js_bindings(HTML/HTMLVideoElement)
 libweb_js_bindings(HTML/ImageData)
 libweb_js_bindings(HTML/Location)
+libweb_js_bindings(HTML/MediaError)
 libweb_js_bindings(HTML/MessageChannel)
 libweb_js_bindings(HTML/MessageEvent)
 libweb_js_bindings(HTML/MessagePort)