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LibWeb: Start fleshing out HTML "image requests" and "image data"

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This patch adds HTML::ImageRequest and HTML::DecodedImageData.

The latter had to use a different name than "ImageData", as there is
already an IDL-exposed ImageData class in HTML.
This commit is contained in:
Andreas Kling 2023-05-10 19:36:43 +02:00
parent 420952a433
commit 596eabe9e6
6 changed files with 281 additions and 0 deletions
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44
Userland/Libraries/LibWeb/HTML/DecodedImageData.h Normal file
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/*
* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefCounted.h>
#include <LibGfx/Forward.h>
#include <LibJS/Heap/Cell.h>
namespace Web::HTML {
// https://html.spec.whatwg.org/multipage/images.html#img-req-data
class DecodedImageData final : public RefCounted<DecodedImageData> {
public:
struct Frame {
RefPtr<Gfx::Bitmap const> bitmap;
int duration { 0 };
};
static ErrorOr<NonnullRefPtr<DecodedImageData>> create(Vector<Frame>&&, size_t loop_count, bool animated);
~DecodedImageData();
RefPtr<Gfx::Bitmap const> bitmap(size_t frame_index) const;
int frame_duration(size_t frame_index) const;
size_t frame_count() const { return m_frames.size(); }
size_t loop_count() const { return m_loop_count; }
bool is_animated() const { return m_animated; }
Optional<int> natural_width() const;
Optional<int> natural_height() const;
private:
DecodedImageData(Vector<Frame>&&, size_t loop_count, bool animated);
Vector<Frame> m_frames;
size_t m_loop_count { 0 };
bool m_animated { false };
};
}