ladybird/Libraries/LibWeb/SVG/SVGTextPositioningElement.cpp
Timothy Flynn d4f8b598cb LibWeb: Consolidate the attribute change handlers
We currently have 2 virtual methods to inform DOM::Element subclasses
when an attribute has changed, one of which is spec-compliant. This
patch removes the non-compliant variant.
2024-11-14 15:39:02 +01:00

60 lines
2.3 KiB
C++

/*
* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Utf16View.h>
#include <LibJS/Runtime/Completion.h>
#include <LibJS/Runtime/Utf16String.h>
#include <LibWeb/Bindings/SVGTextPositioningElementPrototype.h>
#include <LibWeb/CSS/Parser/Parser.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/AttributeParser.h>
#include <LibWeb/SVG/SVGGeometryElement.h>
#include <LibWeb/SVG/SVGTextPositioningElement.h>
namespace Web::SVG {
SVGTextPositioningElement::SVGTextPositioningElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: SVGTextContentElement(document, move(qualified_name))
{
}
void SVGTextPositioningElement::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGTextPositioningElement);
}
void SVGTextPositioningElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
{
Base::attribute_changed(name, old_value, value, namespace_);
if (name == SVG::AttributeNames::x) {
m_x = AttributeParser::parse_number_percentage(value.value_or(String {}));
} else if (name == SVG::AttributeNames::y) {
m_y = AttributeParser::parse_number_percentage(value.value_or(String {}));
} else if (name == SVG::AttributeNames::dx) {
m_dx = AttributeParser::parse_number_percentage(value.value_or(String {}));
} else if (name == SVG::AttributeNames::dy) {
m_dy = AttributeParser::parse_number_percentage(value.value_or(String {}));
}
}
Gfx::FloatPoint SVGTextPositioningElement::get_offset(CSSPixelSize const& viewport_size) const
{
auto const viewport_width = viewport_size.width().to_float();
auto const viewport_height = viewport_size.height().to_float();
float const x = m_x.value_or({ 0, false }).resolve_relative_to(viewport_width);
float const y = m_y.value_or({ 0, false }).resolve_relative_to(viewport_height);
float const dx = m_dx.value_or({ 0, false }).resolve_relative_to(viewport_width);
float const dy = m_dy.value_or({ 0, false }).resolve_relative_to(viewport_height);
return { x + dx, y + dy };
}
}