mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-31 21:30:58 +00:00
44e4ea3d7a
This makes cascade layer filtering take <2% of CPU time when loading https://vercel.com instead of 30%.
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
|
|
* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include "CSSLayerStatementRule.h"
|
|
#include <LibWeb/Bindings/CSSLayerStatementRulePrototype.h>
|
|
#include <LibWeb/Bindings/Intrinsics.h>
|
|
#include <LibWeb/CSS/CSSLayerBlockRule.h>
|
|
|
|
namespace Web::CSS {
|
|
|
|
JS_DEFINE_ALLOCATOR(CSSLayerStatementRule);
|
|
|
|
JS::NonnullGCPtr<CSSLayerStatementRule> CSSLayerStatementRule::create(JS::Realm& realm, Vector<FlyString> name_list)
|
|
{
|
|
return realm.heap().allocate<CSSLayerStatementRule>(realm, realm, move(name_list));
|
|
}
|
|
|
|
CSSLayerStatementRule::CSSLayerStatementRule(JS::Realm& realm, Vector<FlyString> name_list)
|
|
: CSSRule(realm)
|
|
, m_name_list(move(name_list))
|
|
{
|
|
}
|
|
|
|
void CSSLayerStatementRule::initialize(JS::Realm& realm)
|
|
{
|
|
Base::initialize(realm);
|
|
WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSLayerStatementRule);
|
|
}
|
|
|
|
String CSSLayerStatementRule::serialized() const
|
|
{
|
|
// AD-HOC: No spec yet.
|
|
StringBuilder builder;
|
|
builder.append("@layer "sv);
|
|
builder.join(", "sv, m_name_list);
|
|
builder.append(';');
|
|
return builder.to_string_without_validation();
|
|
}
|
|
|
|
Vector<FlyString> CSSLayerStatementRule::internal_qualified_name_list(Badge<StyleComputer>) const
|
|
{
|
|
Vector<FlyString> qualified_layer_names;
|
|
|
|
auto const& qualified_parent_layer_name = parent_layer_internal_qualified_name();
|
|
if (qualified_parent_layer_name.is_empty())
|
|
return m_name_list;
|
|
|
|
for (auto const& name : m_name_list)
|
|
qualified_layer_names.append(MUST(String::formatted("{}.{}", qualified_parent_layer_name, name)));
|
|
|
|
return qualified_layer_names;
|
|
}
|
|
|
|
}
|