mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-07-14 04:51:52 +00:00
90 lines
3.2 KiB
C++
90 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2025, Ladybird contributors
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibGfx/Bitmap.h>
|
|
#include <LibWeb/Bindings/PlatformObject.h>
|
|
#include <LibWeb/Bindings/Transferable.h>
|
|
#include <LibWeb/DOM/EventTarget.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/WebIDL/Types.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
// https://html.spec.whatwg.org/multipage/canvas.html#offscreenrenderingcontext
|
|
// NOTE: This is the Variant created by the IDL wrapper generator, and needs to be updated accordingly.
|
|
using OffscreenRenderingContext = Variant<GC::Root<OffscreenCanvasRenderingContext2D>, GC::Root<WebGL::WebGLRenderingContext>, GC::Root<WebGL::WebGL2RenderingContext>, Empty>;
|
|
|
|
// https://html.spec.whatwg.org/multipage/canvas.html#imageencodeoptions
|
|
struct ImageEncodeOptions {
|
|
FlyString type { "image/png"_fly_string };
|
|
Optional<double> quality;
|
|
};
|
|
|
|
// https://html.spec.whatwg.org/multipage/canvas.html#offscreencanvas
|
|
class OffscreenCanvas : public DOM::EventTarget
|
|
, public Web::Bindings::Transferable {
|
|
WEB_PLATFORM_OBJECT(OffscreenCanvas, DOM::EventTarget);
|
|
GC_DECLARE_ALLOCATOR(OffscreenCanvas);
|
|
|
|
public:
|
|
static GC::Ref<OffscreenCanvas> create(JS::Realm&, WebIDL::UnsignedLong width, WebIDL::UnsignedLong height);
|
|
|
|
static WebIDL::ExceptionOr<GC::Ref<OffscreenCanvas>> construct_impl(
|
|
JS::Realm&,
|
|
WebIDL::UnsignedLong width,
|
|
WebIDL::UnsignedLong height);
|
|
|
|
virtual ~OffscreenCanvas() override;
|
|
|
|
// ^Web::Bindings::Transferable
|
|
virtual WebIDL::ExceptionOr<void> transfer_steps(HTML::TransferDataHolder&) override;
|
|
virtual WebIDL::ExceptionOr<void> transfer_receiving_steps(HTML::TransferDataHolder&) override;
|
|
virtual HTML::TransferType primary_interface() const override;
|
|
|
|
WebIDL::UnsignedLong width() const;
|
|
WebIDL::UnsignedLong height() const;
|
|
|
|
RefPtr<Gfx::Bitmap> bitmap() const;
|
|
|
|
WebIDL::ExceptionOr<void> set_width(WebIDL::UnsignedLong);
|
|
WebIDL::ExceptionOr<void> set_height(WebIDL::UnsignedLong);
|
|
|
|
Gfx::IntSize bitmap_size_for_canvas() const;
|
|
|
|
JS::ThrowCompletionOr<OffscreenRenderingContext> get_context(Bindings::OffscreenRenderingContextId contextId, JS::Value options);
|
|
|
|
WebIDL::ExceptionOr<GC::Ref<ImageBitmap>> transfer_to_image_bitmap();
|
|
|
|
GC::Ref<WebIDL::Promise> convert_to_blob(Optional<ImageEncodeOptions> options);
|
|
|
|
void set_oncontextlost(GC::Ptr<WebIDL::CallbackType>);
|
|
GC::Ptr<WebIDL::CallbackType> oncontextlost();
|
|
void set_oncontextrestored(GC::Ptr<WebIDL::CallbackType>);
|
|
GC::Ptr<WebIDL::CallbackType> oncontextrestored();
|
|
|
|
private:
|
|
OffscreenCanvas(JS::Realm&, RefPtr<Gfx::Bitmap> bitmap);
|
|
|
|
virtual void initialize(JS::Realm&) override;
|
|
virtual void visit_edges(Cell::Visitor&) override;
|
|
|
|
enum class HasOrCreatedContext {
|
|
No,
|
|
Yes,
|
|
};
|
|
JS::ThrowCompletionOr<HasOrCreatedContext> create_2d_context(JS::Value options);
|
|
|
|
void reset_context_to_default_state();
|
|
void set_new_bitmap_size(Gfx::IntSize new_size);
|
|
|
|
Variant<GC::Ref<HTML::OffscreenCanvasRenderingContext2D>, GC::Ref<WebGL::WebGLRenderingContext>, GC::Ref<WebGL::WebGL2RenderingContext>, Empty> m_context;
|
|
|
|
RefPtr<Gfx::Bitmap> m_bitmap;
|
|
};
|
|
|
|
}
|