LibWeb: Move common SVGViewport code into an SVGFitToViewBox class

Special handling for SVGClipPathElement and SVGMaskElement, which use a
a ViewBox and PreserveAspectRatio value internally, has been moved to
`SVGFormattingContext`.
This commit is contained in:
Tim Ledbetter 2025-08-27 22:17:33 +01:00 committed by Jelle Raaijmakers
commit ea41aba6c7
Notes: github-actions[bot] 2025-08-28 13:44:09 +00:00
16 changed files with 144 additions and 152 deletions

View file

@ -0,0 +1,43 @@
/*
* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/Realm.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/SVGAnimatedRect.h>
#include <LibWeb/SVG/SVGFitToViewBox.h>
namespace Web::SVG {
void SVGFitToViewBox::initialize(JS::Realm& realm)
{
m_view_box_for_bindings = realm.create<SVGAnimatedRect>(realm);
}
void SVGFitToViewBox::visit_edges(JS::Cell::Visitor& visitor)
{
visitor.visit(m_view_box_for_bindings);
}
void SVGFitToViewBox::attribute_changed(DOM::Element&, FlyString const& name, Optional<String> const& value)
{
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::viewBox)) {
if (!value.has_value()) {
m_view_box_for_bindings->set_nulled(true);
} else {
m_view_box = try_parse_view_box(value.value_or(String {}));
m_view_box_for_bindings->set_nulled(!m_view_box.has_value());
if (m_view_box.has_value()) {
m_view_box_for_bindings->set_base_val(Gfx::DoubleRect { m_view_box->min_x, m_view_box->min_y, m_view_box->width, m_view_box->height });
m_view_box_for_bindings->set_anim_val(Gfx::DoubleRect { m_view_box->min_x, m_view_box->min_y, m_view_box->width, m_view_box->height });
}
}
} else if (name.equals_ignoring_ascii_case(SVG::AttributeNames::preserveAspectRatio)) {
m_preserve_aspect_ratio = AttributeParser::parse_preserve_aspect_ratio(value.value_or(String {}));
}
}
}