mirror of
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125 lines
4.6 KiB
C++
125 lines
4.6 KiB
C++
/*
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* Copyright (c) 2024, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.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/Bindings/SVGAElementPrototype.h>
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#include <LibWeb/DOM/DOMTokenList.h>
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#include <LibWeb/HTML/UserNavigationInvolvement.h>
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#include <LibWeb/Layout/SVGGraphicsBox.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/SVGAElement.h>
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#include <LibWeb/UIEvents/MouseEvent.h>
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namespace Web::SVG {
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GC_DEFINE_ALLOCATOR(SVGAElement);
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SVGAElement::SVGAElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGGraphicsElement(document, move(qualified_name))
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{
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}
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SVGAElement::~SVGAElement() = default;
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void SVGAElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGAElement);
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Base::initialize(realm);
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}
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void SVGAElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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SVGURIReferenceMixin::visit_edges(visitor);
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visitor.visit(m_rel_list);
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visitor.visit(m_target);
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}
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void SVGAElement::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::href) {
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invalidate_style(
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DOM::StyleInvalidationReason::HTMLHyperlinkElementHrefChange,
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{
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{ .type = CSS::InvalidationSet::Property::Type::PseudoClass, .value = CSS::PseudoClass::AnyLink },
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{ .type = CSS::InvalidationSet::Property::Type::PseudoClass, .value = CSS::PseudoClass::Link },
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{ .type = CSS::InvalidationSet::Property::Type::PseudoClass, .value = CSS::PseudoClass::LocalLink },
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},
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{});
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}
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if (name == HTML::AttributeNames::rel) {
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if (m_rel_list)
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m_rel_list->associated_attribute_changed(value.value_or(String {}));
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}
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}
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// https://html.spec.whatwg.org/multipage/interaction.html#dom-tabindex
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i32 SVGAElement::default_tab_index_value() const
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{
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// See the base function for the spec comments.
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return 0;
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}
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// https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__target
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GC::Ref<SVGAnimatedString> SVGAElement::target()
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{
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if (!m_target)
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m_target = SVGAnimatedString::create(realm(), *this, DOM::QualifiedName { HTML::AttributeNames::target, OptionalNone {}, OptionalNone {} });
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return *m_target;
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}
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// https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__relList
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GC::Ref<DOM::DOMTokenList> SVGAElement::rel_list()
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{
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// The relList IDL attribute reflects the ‘rel’ content attribute.
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if (!m_rel_list)
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m_rel_list = DOM::DOMTokenList::create(*this, HTML::AttributeNames::rel);
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return *m_rel_list;
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}
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GC::Ptr<Layout::Node> SVGAElement::create_layout_node(GC::Ref<CSS::ComputedProperties> style)
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{
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return heap().allocate<Layout::SVGGraphicsBox>(document(), *this, move(style));
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}
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// https://html.spec.whatwg.org/multipage/links.html#links-created-by-a-and-area-elements
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void SVGAElement::activation_behavior(DOM::Event const& event)
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{
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// The activation behavior of an a or area element element given an event event is:
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// 1. If element has no href attribute, then return.
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if (href()->base_val().is_empty())
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return;
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// AD-HOC: Do not activate the element for clicks with the ctrl/cmd modifier present. This lets
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// the browser process open the link in a new tab.
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if (is<UIEvents::MouseEvent>(event)) {
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auto const& mouse_event = static_cast<UIEvents::MouseEvent const&>(event);
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if (mouse_event.platform_ctrl_key())
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return;
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}
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// 2. Let hyperlinkSuffix be null.
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Optional<String> hyperlink_suffix {};
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// FIXME: 3. If element is an a element, and event's target is an img with an ismap attribute specified, then:
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// 4. Let userInvolvement be event's user navigation involvement.
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auto user_involvement = HTML::user_navigation_involvement(event);
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// FIXME: 5. If the user has expressed a preference to download the hyperlink, then set userInvolvement to "browser UI".
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// FIXME: 6. If element has a download attribute, or if the user has expressed a preference to download the
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// hyperlink, then download the hyperlink created by element with hyperlinkSuffix set to hyperlinkSuffix and
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// userInvolvement set to userInvolvement.
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// 7. Otherwise, follow the hyperlink created by element with hyperlinkSuffix set to hyperlinkSuffix and userInvolvement set to userInvolvement.
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follow_the_hyperlink(hyperlink_suffix, user_involvement);
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}
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}
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