3b1d1d4582
https://drafts.csswg.org/css-display-3/#unbox-html specifies certain elements that have their `display` style computed as `none` when specified as `contents`. This fixes at least one WPT test: http://wpt.live/css/css-display/display-contents-suppression-dynamic-001.html
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/PaintingSurface.h>
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/WebGL/WebGLRenderingContext.h>
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namespace Web::HTML {
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class HTMLCanvasElement final : public HTMLElement {
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WEB_PLATFORM_OBJECT(HTMLCanvasElement, HTMLElement);
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JS_DECLARE_ALLOCATOR(HTMLCanvasElement);
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public:
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using RenderingContext = Variant<JS::Handle<CanvasRenderingContext2D>, JS::Handle<WebGL::WebGLRenderingContext>, Empty>;
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virtual ~HTMLCanvasElement() override;
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bool allocate_painting_surface(size_t minimum_width = 0, size_t minimum_height = 0);
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RefPtr<Gfx::PaintingSurface> surface() { return m_surface; }
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RefPtr<Gfx::PaintingSurface const> surface() const { return m_surface; }
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JS::ThrowCompletionOr<RenderingContext> get_context(String const& type, JS::Value options);
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unsigned width() const;
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unsigned height() const;
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WebIDL::ExceptionOr<void> set_width(unsigned);
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WebIDL::ExceptionOr<void> set_height(unsigned);
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String to_data_url(StringView type, Optional<double> quality);
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WebIDL::ExceptionOr<void> to_blob(JS::NonnullGCPtr<WebIDL::CallbackType> callback, StringView type, Optional<double> quality);
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void present();
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private:
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HTMLCanvasElement(DOM::Document&, DOM::QualifiedName);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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virtual void apply_presentational_hints(CSS::StyleProperties&) const override;
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virtual JS::GCPtr<Layout::Node> create_layout_node(CSS::StyleProperties) override;
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virtual void adjust_computed_style(CSS::StyleProperties&) override;
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enum class HasOrCreatedContext {
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No,
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Yes,
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};
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HasOrCreatedContext create_2d_context();
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JS::ThrowCompletionOr<HasOrCreatedContext> create_webgl_context(JS::Value options);
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void reset_context_to_default_state();
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RefPtr<Gfx::PaintingSurface> m_surface;
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Variant<JS::NonnullGCPtr<HTML::CanvasRenderingContext2D>, JS::NonnullGCPtr<WebGL::WebGLRenderingContext>, Empty> m_context;
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};
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}
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