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a146225331
Add unsafe_layout_node(), unsafe_paintable(), and unsafe_paintable_box() accessors that skip layout-staleness verification. These are for use in contexts where accessing layout/paintable data is legitimate despite layout not being up to date: tree construction, style recalculation, painting, animation interpolation, DOM mutation, and invalidation propagation. Also add wrapper APIs on Node to centralize common patterns: - set_needs_display() wraps if (unsafe_paintable()) ...set_needs_display - set_needs_paint_only_properties_update() wraps similar - set_needs_layout_update() wraps if (unsafe_layout_node()) ... And add Document::layout_is_up_to_date() which checks whether layout tree update flags are all clear.
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@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 <LibGfx/Path.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/SVGPolygonElementPrototype.h>
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#include <LibWeb/Layout/Node.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/AttributeParser.h>
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#include <LibWeb/SVG/SVGPolygonElement.h>
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namespace Web::SVG {
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GC_DEFINE_ALLOCATOR(SVGPolygonElement);
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SVGPolygonElement::SVGPolygonElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGGeometryElement(document, qualified_name)
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{
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}
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void SVGPolygonElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGPolygonElement);
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Base::initialize(realm);
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}
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void SVGPolygonElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
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{
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Base::attribute_changed(name, old_value, value, namespace_);
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if (name == SVG::AttributeNames::points) {
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m_points = AttributeParser::parse_points(value.value_or(String {}));
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set_needs_layout_update(DOM::SetNeedsLayoutReason::StyleChange);
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}
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}
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Gfx::Path SVGPolygonElement::get_path(CSSPixelSize)
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{
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Gfx::Path path;
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if (m_points.is_empty())
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return path;
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// 1. perform an absolute moveto operation to the first coordinate pair in the list of points
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path.move_to(m_points.first());
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// 2. for each subsequent coordinate pair, perform an absolute lineto operation to that coordinate pair.
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for (size_t point_index = 1; point_index < m_points.size(); ++point_index)
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path.line_to(m_points[point_index]);
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// 3. perform a closepath command
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path.close();
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return path;
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}
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}
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