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LibWeb: Create a basic layout node for HTMLVideoElement

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Timothy Flynn 2023-04-04 18:32:09 -04:00 • committed by Linus Groh
parent 725d7c3699
commit f156d3d5e5
10 changed files with 338 additions and 0 deletions
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73
Userland/Libraries/LibWeb/Layout/VideoBox.cpp Normal file
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/*
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/HTML/HTMLVideoElement.h>
#include <LibWeb/Layout/VideoBox.h>
#include <LibWeb/Painting/VideoPaintable.h>
namespace Web::Layout {
VideoBox::VideoBox(DOM::Document& document, DOM::Element& element, NonnullRefPtr<CSS::StyleProperties> style)
: ReplacedBox(document, element, move(style))
{
browsing_context().register_viewport_client(*this);
}
void VideoBox::finalize()
{
Base::finalize();
// NOTE: We unregister from the browsing context in finalize() to avoid trouble
// in the scenario where our BrowsingContext has already been swept by GC.
browsing_context().unregister_viewport_client(*this);
}
HTML::HTMLVideoElement& VideoBox::dom_node()
{
return static_cast<HTML::HTMLVideoElement&>(ReplacedBox::dom_node());
}
HTML::HTMLVideoElement const& VideoBox::dom_node() const
{
return static_cast<HTML::HTMLVideoElement const&>(ReplacedBox::dom_node());
}
int VideoBox::preferred_width() const
{
return dom_node().attribute(HTML::AttributeNames::width).to_int().value_or(dom_node().video_width());
}
int VideoBox::preferred_height() const
{
return dom_node().attribute(HTML::AttributeNames::height).to_int().value_or(dom_node().video_height());
}
void VideoBox::prepare_for_replaced_layout()
{
auto width = static_cast<float>(dom_node().video_width());
set_intrinsic_width(width);
auto height = static_cast<float>(dom_node().video_height());
set_intrinsic_height(height);
if (width != 0 && height != 0)
set_intrinsic_aspect_ratio(width / height);
else
set_intrinsic_aspect_ratio({});
}
void VideoBox::browsing_context_did_set_viewport_rect(CSSPixelRect const&)
{
// FIXME: Several steps in HTMLMediaElement indicate we may optionally handle whether the media object
// is in view. Implement those steps.
}
JS::GCPtr<Painting::Paintable> VideoBox::create_paintable() const
{
return Painting::VideoPaintable::create(*this);
}
}