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LibWeb: Implement the legacy Audio factory function

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This creates an Audio element with preload="auto" and the given src
attribute.

Required by Cookie Clicker.
This commit is contained in:
Luke Wilde 2022-02-26 10:34:08 +00:00 • committed by Andreas Kling
parent 79ea30bc96
commit ed76b4238c
5 changed files with 249 additions and 151 deletions
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67
Userland/Libraries/LibWeb/Bindings/AudioConstructor.cpp Normal file
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/*
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/AudioConstructor.h>
#include <LibWeb/Bindings/HTMLAudioElementPrototype.h>
#include <LibWeb/Bindings/HTMLAudioElementWrapper.h>
#include <LibWeb/Bindings/NodeWrapperFactory.h>
#include <LibWeb/DOM/ElementFactory.h>
#include <LibWeb/DOM/Window.h>
#include <LibWeb/Namespace.h>
namespace Web::Bindings {
AudioConstructor::AudioConstructor(JS::GlobalObject& global_object)
: NativeFunction(*global_object.function_prototype())
{
}
void AudioConstructor::initialize(JS::GlobalObject& global_object)
{
auto& vm = this->vm();
auto& window = static_cast<WindowObject&>(global_object);
NativeFunction::initialize(global_object);
define_direct_property(vm.names.prototype, &window.ensure_web_prototype<HTMLAudioElementPrototype>("HTMLAudioElement"), 0);
define_direct_property(vm.names.length, JS::Value(0), JS::Attribute::Configurable);
}
AudioConstructor::~AudioConstructor()
{
}
JS::ThrowCompletionOr<JS::Value> AudioConstructor::call()
{
return vm().throw_completion<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "Audio");
}
// https://html.spec.whatwg.org/multipage/media.html#dom-audio
JS::ThrowCompletionOr<JS::Object*> AudioConstructor::construct(FunctionObject&)
{
// 1. Let document be the current global object's associated Document.
auto& window = static_cast<WindowObject&>(global_object());
auto& document = window.impl().associated_document();
// 2. Let audio be the result of creating an element given document, audio, and the HTML namespace.
auto audio = DOM::create_element(document, HTML::TagNames::audio, Namespace::HTML);
// 3. Set an attribute value for audio using "preload" and "auto".
audio->set_attribute(HTML::AttributeNames::preload, "auto"sv);
auto src_value = vm().argument(0);
// 4. If src is given, then set an attribute value for audio using "src" and src.
// (This will cause the user agent to invoke the object's resource selection algorithm before returning.)
if (!src_value.is_undefined()) {
auto src = TRY(src_value.to_string(global_object()));
audio->set_attribute(HTML::AttributeNames::src, move(src));
}
// 5. Return audio.
return wrap(global_object(), audio);
}
}