mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
f87041bf3a
Resulting in a massive rename across almost everywhere! Alongside the namespace change, we now have the following names: * JS::NonnullGCPtr -> GC::Ref * JS::GCPtr -> GC::Ptr * JS::HeapFunction -> GC::Function * JS::CellImpl -> GC::Cell * JS::Handle -> GC::Root
87 lines
3 KiB
C++
87 lines
3 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/Bindings/HTMLLabelElementPrototype.h>
|
|
#include <LibWeb/DOM/Document.h>
|
|
#include <LibWeb/HTML/FormAssociatedElement.h>
|
|
#include <LibWeb/HTML/HTMLLabelElement.h>
|
|
#include <LibWeb/Layout/Label.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
GC_DEFINE_ALLOCATOR(HTMLLabelElement);
|
|
|
|
HTMLLabelElement::HTMLLabelElement(DOM::Document& document, DOM::QualifiedName qualified_name)
|
|
: HTMLElement(document, move(qualified_name))
|
|
{
|
|
}
|
|
|
|
HTMLLabelElement::~HTMLLabelElement() = default;
|
|
|
|
void HTMLLabelElement::initialize(JS::Realm& realm)
|
|
{
|
|
Base::initialize(realm);
|
|
WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLLabelElement);
|
|
}
|
|
|
|
GC::Ptr<Layout::Node> HTMLLabelElement::create_layout_node(CSS::StyleProperties style)
|
|
{
|
|
return heap().allocate<Layout::Label>(document(), this, move(style));
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/forms.html#labeled-control
|
|
GC::Ptr<HTMLElement> HTMLLabelElement::control() const
|
|
{
|
|
GC::Ptr<HTMLElement> control;
|
|
|
|
// The for attribute may be specified to indicate a form control with which the caption is
|
|
// to be associated. If the attribute is specified, the attribute's value must be the ID of
|
|
// a labelable element in the same tree as the label element. If the attribute is specified
|
|
// and there is an element in the tree whose ID is equal to the value of the for attribute,
|
|
// and the first such element in tree order is a labelable element, then that element is the
|
|
// label element's labeled control.
|
|
if (for_().has_value()) {
|
|
root().for_each_in_inclusive_subtree_of_type<HTMLElement>([&](auto& element) {
|
|
if (element.id() == *for_() && element.is_labelable()) {
|
|
control = &const_cast<HTMLElement&>(element);
|
|
return TraversalDecision::Break;
|
|
}
|
|
return TraversalDecision::Continue;
|
|
});
|
|
return control;
|
|
}
|
|
|
|
// If the for attribute is not specified, but the label element has a labelable element descendant,
|
|
// then the first such descendant in tree order is the label element's labeled control.
|
|
for_each_in_subtree_of_type<HTMLElement>([&](auto& element) {
|
|
if (element.is_labelable()) {
|
|
control = &const_cast<HTMLElement&>(element);
|
|
return TraversalDecision::Break;
|
|
}
|
|
return TraversalDecision::Continue;
|
|
});
|
|
|
|
return control;
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/forms.html#dom-label-form
|
|
GC::Ptr<HTMLFormElement> HTMLLabelElement::form() const
|
|
{
|
|
auto labeled_control = control();
|
|
|
|
// 1. If the label element has no labeled control, then return null.
|
|
if (!labeled_control)
|
|
return {};
|
|
|
|
// 2. If the label element's labeled control is not a form-associated element, then return null.
|
|
if (!is<FormAssociatedElement>(*labeled_control))
|
|
return {};
|
|
|
|
// 3. Return the label element's labeled control's form owner (which can still be null).
|
|
return dynamic_cast<FormAssociatedElement*>(labeled_control.ptr())->form();
|
|
}
|
|
|
|
}
|