ladybird/Userland/Libraries/LibWeb/DOM/StyleElementUtils.h
Andreas Kling 3b7534b362 LibWeb: Use correct scope when removing style sheet inside a shadow tree
Before this change, removing a style element from inside a shadow tree
would cause it to be unregistered with the document-level list of sheets
instead of the shadow-root-level list.

This would eventually lead to a verification failure if someone tried to
update the text contents of that style element, since it was still in
the shadow-root-level list, but now with a null owner element.

Fixes a crash on https://www.swedbank.se/
2024-07-23 11:12:18 +02:00

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/*
* Copyright (c) 2023, Preston Taylor <PrestonLeeTaylor@proton.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/CSSStyleSheet.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/WebIDL/ObservableArray.h>
namespace Web::DOM {
class StyleElementUtils {
public:
void update_a_style_block(DOM::Element& style_element, JS::GCPtr<DOM::Node> old_parent_if_removed_from = nullptr);
CSS::CSSStyleSheet* sheet() { return m_associated_css_style_sheet; }
CSS::CSSStyleSheet const* sheet() const { return m_associated_css_style_sheet; }
private:
// https://www.w3.org/TR/cssom/#associated-css-style-sheet
JS::GCPtr<CSS::CSSStyleSheet> m_associated_css_style_sheet;
};
}