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LibWeb: Move CSSRule iteration to CSSRuleList

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CSSStyleSheet is no longer the only class that contains a list of rules,
so this will save duplicating the logic in multiple places.
This commit is contained in:
Sam Atkins 2021-10-08 16:40:50 +01:00 • committed by Andreas Kling
parent bc0ef5f69d
commit df08b25b3f
4 changed files with 40 additions and 24 deletions
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34
Userland/Libraries/LibWeb/CSS/CSSRuleList.cpp
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@ -4,6 +4,8 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypeCasts.h>
#include <LibWeb/CSS/CSSImportRule.h>
#include <LibWeb/CSS/CSSRuleList.h>
#include <LibWeb/DOM/ExceptionOr.h>
@ -74,4 +76,36 @@ DOM::ExceptionOr<void> CSSRuleList::remove_a_css_rule(u32 index)
return {};
}
void CSSRuleList::for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const
{
for (auto& rule : m_rules) {
if (rule.type() == CSSRule::Type::Style) {
callback(verify_cast<CSSStyleRule>(rule));
} else if (rule.type() == CSSRule::Type::Import) {
const auto& import_rule = verify_cast<CSSImportRule>(rule);
if (import_rule.has_import_result())
import_rule.loaded_style_sheet()->for_each_effective_style_rule(callback);
}
}
}
bool CSSRuleList::for_first_not_loaded_import_rule(Function<void(CSSImportRule&)> const& callback)
{
for (auto& rule : m_rules) {
if (rule.type() == CSSRule::Type::Import) {
auto& import_rule = verify_cast<CSSImportRule>(rule);
if (!import_rule.has_import_result()) {
callback(import_rule);
return true;
}
if (import_rule.loaded_style_sheet()->for_first_not_loaded_import_rule(callback)) {
return true;
}
}
}
return false;
}
}