mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 09:14:58 +00:00
5dd5896588
This is a continuation of the previous commit. Calling initialize() is the first thing that's done after allocating a cell on the JS heap - and in the common case of allocating an object, that's where properties are assigned and intrinsics occasionally accessed. Since those are supposed to live on the realm eventually, this is another step into that direction.
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/HTMLImageElementPrototype.h>
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#include <LibWeb/Bindings/HTMLImageElementWrapper.h>
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#include <LibWeb/Bindings/ImageConstructor.h>
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#include <LibWeb/Bindings/NodeWrapperFactory.h>
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#include <LibWeb/DOM/ElementFactory.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/Namespace.h>
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namespace Web::Bindings {
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ImageConstructor::ImageConstructor(JS::Realm& realm)
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: NativeFunction(*realm.global_object().function_prototype())
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{
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}
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void ImageConstructor::initialize(JS::Realm& realm)
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{
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auto& vm = this->vm();
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auto& window = static_cast<WindowObject&>(realm.global_object());
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NativeFunction::initialize(realm);
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define_direct_property(vm.names.prototype, &window.ensure_web_prototype<HTMLImageElementPrototype>("HTMLImageElement"), 0);
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define_direct_property(vm.names.length, JS::Value(0), JS::Attribute::Configurable);
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}
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JS::ThrowCompletionOr<JS::Value> ImageConstructor::call()
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{
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return vm().throw_completion<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "Image");
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}
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// https://html.spec.whatwg.org/multipage/embedded-content.html#dom-image
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JS::ThrowCompletionOr<JS::Object*> ImageConstructor::construct(FunctionObject&)
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{
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// 1. Let document be the current global object's associated Document.
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auto& window = static_cast<WindowObject&>(HTML::current_global_object());
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auto& document = window.impl().associated_document();
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// 2. Let img be the result of creating an element given document, img, and the HTML namespace.
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auto image_element = DOM::create_element(document, HTML::TagNames::img, Namespace::HTML);
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// 3. If width is given, then set an attribute value for img using "width" and width.
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if (vm().argument_count() > 0) {
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u32 width = TRY(vm().argument(0).to_u32(global_object()));
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image_element->set_attribute(HTML::AttributeNames::width, String::formatted("{}", width));
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}
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// 4. If height is given, then set an attribute value for img using "height" and height.
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if (vm().argument_count() > 1) {
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u32 height = TRY(vm().argument(1).to_u32(global_object()));
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image_element->set_attribute(HTML::AttributeNames::height, String::formatted("{}", height));
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}
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// 5. Return img.
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return wrap(global_object(), image_element);
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}
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}
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