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- /*
- * Copyright (c) 2022, the SerenityOS developers.
- * Copyright (c) 2024, Andreas Kling <andreas@ladybird.org>
- * Copyright (c) 2024, Tim Flynn <trflynn89@ladybird.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #pragma once
- #include <AK/HashMap.h>
- #include <LibJS/Heap/Cell.h>
- #include <LibJS/Heap/GCPtr.h>
- #include <LibJS/Heap/HeapFunction.h>
- #include <LibWeb/WebIDL/Types.h>
- namespace Web::HTML {
- class AnimationFrameCallbackDriver final : public JS::Cell {
- JS_CELL(AnimationFrameCallbackDriver, JS::Cell);
- JS_DECLARE_ALLOCATOR(AnimationFrameCallbackDriver);
- using Callback = JS::NonnullGCPtr<JS::HeapFunction<void(double)>>;
- public:
- [[nodiscard]] WebIDL::UnsignedLong add(Callback handler);
- bool remove(WebIDL::UnsignedLong);
- bool has_callbacks() const;
- void run(double now);
- private:
- virtual void visit_edges(Cell::Visitor&) override;
- // https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#animation-frame-callback-identifier
- WebIDL::UnsignedLong m_animation_frame_callback_identifier { 0 };
- OrderedHashMap<WebIDL::UnsignedLong, Callback> m_callbacks;
- OrderedHashMap<WebIDL::UnsignedLong, Callback> m_executing_callbacks;
- };
- }
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