360c0eb509
In general it is not safe to convert any arbitrary floating-point value to CSSPixels. CSSPixels has a resolution of 0.015625, which for small values (e.g. scale factors between 0 and 1), can produce bad results if converted to CSSPixels then scaled back up. In the worst case values can underflow to zero and produce incorrect results.
63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/HTML/HTMLVideoElement.h>
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#include <LibWeb/Layout/VideoBox.h>
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#include <LibWeb/Painting/VideoPaintable.h>
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namespace Web::Layout {
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VideoBox::VideoBox(DOM::Document& document, DOM::Element& element, NonnullRefPtr<CSS::StyleProperties> style)
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: ReplacedBox(document, element, move(style))
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{
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document.register_viewport_client(*this);
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}
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void VideoBox::finalize()
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{
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Base::finalize();
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// NOTE: We unregister from the document in finalize() to avoid trouble
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// in the scenario where our Document has already been swept by GC.
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document().unregister_viewport_client(*this);
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}
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HTML::HTMLVideoElement& VideoBox::dom_node()
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{
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return static_cast<HTML::HTMLVideoElement&>(ReplacedBox::dom_node());
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}
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HTML::HTMLVideoElement const& VideoBox::dom_node() const
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{
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return static_cast<HTML::HTMLVideoElement const&>(ReplacedBox::dom_node());
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}
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void VideoBox::prepare_for_replaced_layout()
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{
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auto width = static_cast<float>(dom_node().video_width());
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set_natural_width(CSSPixels(width));
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auto height = static_cast<float>(dom_node().video_height());
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set_natural_height(CSSPixels(height));
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if (width != 0 && height != 0)
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set_natural_aspect_ratio(width / height);
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else
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set_natural_aspect_ratio({});
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}
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void VideoBox::did_set_viewport_rect(CSSPixelRect const&)
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{
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// FIXME: Several steps in HTMLMediaElement indicate we may optionally handle whether the media object
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// is in view. Implement those steps.
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}
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JS::GCPtr<Painting::Paintable> VideoBox::create_paintable() const
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{
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return Painting::VideoPaintable::create(*this);
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}
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}
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