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https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 01:35:08 +02:00
b6559d3846
Avoid forcing a full style update when a connected inline <style> sheet inserts an ordinary style rule. Build a targeted invalidation set from the inserted rule and walk only the affected roots instead. Introduce the shared StyleSheetInvalidation helper so later stylesheet mutation paths can reuse the same selector analysis and root application logic. It handles trailing-universal selectors, pseudo-element-only rightmost compounds, and shadow-host escapes through ::slotted(...) and :host combinators. Keep the broad invalidate_owners() path for constructed stylesheets and other sheet kinds whose TreeScope interactions still require it.
24 lines
766 B
C++
24 lines
766 B
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 <LibTest/TestCase.h>
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#include <LibWeb/CSS/StyleSheetInvalidation.h>
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namespace Web {
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TEST_CASE(selector_escape_to_light_dom_under_shadow_host)
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{
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EXPECT(!CSS::selector_may_match_light_dom_under_shadow_host(":host"sv));
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EXPECT(!CSS::selector_may_match_light_dom_under_shadow_host(":host(.active)"sv));
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EXPECT(CSS::selector_may_match_light_dom_under_shadow_host(":host > *"sv));
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EXPECT(CSS::selector_may_match_light_dom_under_shadow_host(":host + .item"sv));
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EXPECT(CSS::selector_may_match_light_dom_under_shadow_host(":host ~ .item"sv));
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EXPECT(CSS::selector_may_match_light_dom_under_shadow_host("::slotted(.item)"sv));
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}
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}
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