ladybird/Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.h
Timothy Flynn ff48b7333c LibWeb: Remove shadow roots from elements that are removed from the DOM
We currently create a shadow tree once for each DOM element that renders
with a shadow tree (e.g. <input>, <details>). If such an element is
removed from the DOM, we must remove its shadow tree. Otherwise, the
shadow tree will refer to the old document in perpetuity.

If the node is added back to a DOM, then recreate the shadow tree.
2023-11-30 08:49:15 +00:00

90 lines
2.9 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/ARIA/Roles.h>
#include <LibWeb/DOM/Text.h>
#include <LibWeb/HTML/FormAssociatedElement.h>
#include <LibWeb/HTML/HTMLElement.h>
namespace Web::HTML {
class HTMLTextAreaElement final
: public HTMLElement
, public FormAssociatedElement
, public DOM::EditableTextNodeOwner {
WEB_PLATFORM_OBJECT(HTMLTextAreaElement, HTMLElement);
JS_DECLARE_ALLOCATOR(HTMLTextAreaElement);
FORM_ASSOCIATED_ELEMENT(HTMLElement, HTMLTextAreaElement)
public:
virtual ~HTMLTextAreaElement() override;
virtual JS::GCPtr<Layout::Node> create_layout_node(NonnullRefPtr<CSS::StyleProperties>) override;
DeprecatedString const& type() const
{
static DeprecatedString textarea = "textarea";
return textarea;
}
// ^DOM::EditableTextNodeOwner
virtual void did_edit_text_node(Badge<BrowsingContext>) override;
// ^EventTarget
// https://html.spec.whatwg.org/multipage/interaction.html#the-tabindex-attribute:the-textarea-element
virtual bool is_focusable() const override { return true; }
virtual void did_lose_focus() override;
virtual void did_receive_focus() override;
// ^FormAssociatedElement
// https://html.spec.whatwg.org/multipage/forms.html#category-listed
virtual bool is_listed() const override { return true; }
// https://html.spec.whatwg.org/multipage/forms.html#category-submit
virtual bool is_submittable() const override { return true; }
// https://html.spec.whatwg.org/multipage/forms.html#category-reset
virtual bool is_resettable() const override { return true; }
// https://html.spec.whatwg.org/multipage/forms.html#category-autocapitalize
virtual bool is_auto_capitalize_inheriting() const override { return true; }
// ^HTMLElement
// https://html.spec.whatwg.org/multipage/forms.html#category-label
virtual bool is_labelable() const override { return true; }
virtual void reset_algorithm() override;
virtual void form_associated_element_was_inserted() override;
virtual void form_associated_element_was_removed(DOM::Node*) override;
virtual void children_changed() override;
// https://www.w3.org/TR/html-aria/#el-textarea
virtual Optional<ARIA::Role> default_role() const override { return ARIA::Role::textbox; }
private:
HTMLTextAreaElement(DOM::Document&, DOM::QualifiedName);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
// ^DOM::Element
virtual i32 default_tab_index_value() const override;
void create_shadow_tree_if_needed();
JS::GCPtr<DOM::Element> m_inner_text_element;
JS::GCPtr<DOM::Text> m_text_node;
bool m_dirty { false };
DeprecatedString m_raw_value;
};
}