mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-03 13:02:09 +02:00
0a938fdd51
Document.cpp still knew how style changes on a slot propagate to assigned light-DOM nodes. Move that flat-tree inheritance invalidation into CSS::Invalidation::SlotInvalidator. The style update walk continues to decide when an element's style changed. The helper now owns the ::slotted() consequence of dirtying assigned slottables for a changed slot.
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/*
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* Copyright (c) 2026-present, the Ladybird developers
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/CSS/Invalidation/SlotInvalidator.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/Slottable.h>
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/HTML/HTMLSlotElement.h>
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namespace Web::CSS::Invalidation {
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void invalidate_style_after_slottable_assignment_change(DOM::Slottable const& slottable)
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{
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slottable.visit(
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[](GC::Ref<DOM::Element> const& element) {
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element->set_needs_style_update(true);
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},
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[](GC::Ref<DOM::Text> const&) {});
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}
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void invalidate_assigned_slottables_after_slot_style_change(DOM::Element& element)
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{
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// Slotted elements inherit from their assigned slot in the flat tree, but they are DOM children of the shadow
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// host, so the normal DOM tree walk won't propagate inherited style changes to them.
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auto* slot = as_if<HTML::HTMLSlotElement>(element);
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if (!slot)
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return;
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for (auto const& slottable : slot->assigned_nodes_internal()) {
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slottable.visit([](auto const& assigned_node) {
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assigned_node->set_needs_style_update(true);
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});
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}
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}
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}
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