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LibWeb: Add actual document loading for the CSS (at)import rule

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Sviatoslav Peleshko 2021-02-21 18:44:17 +02:00 • committed by Andreas Kling
parent 54617e1a91
commit 183ebaee91
11 changed files with 229 additions and 56 deletions
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6
Userland/Libraries/LibWeb/CSS/CSSImportRule.h
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@ -45,6 +45,11 @@ public:
const URL& url() const { return m_url; }
bool has_import_result() const { return !m_style_sheet.is_null(); }
RefPtr<StyleSheet> loaded_style_sheet() { return m_style_sheet; }
const RefPtr<StyleSheet> loaded_style_sheet() const { return m_style_sheet; }
void set_style_sheet(const RefPtr<StyleSheet>& style_sheet) { m_style_sheet = style_sheet; }
virtual StringView class_name() const { return "CSSImportRule"; };
virtual Type type() const { return Type::Import; };
@ -52,6 +57,7 @@ private:
CSSImportRule(URL);
URL m_url;
RefPtr<StyleSheet> m_style_sheet;
};
}

24
Userland/Libraries/LibWeb/CSS/StyleSheet.h
View file

@ -29,6 +29,7 @@
#include <AK/NonnullRefPtrVector.h>
#include <AK/TypeCasts.h>
#include <LibWeb/CSS/CSSImportRule.h>
#include <LibWeb/CSS/CSSRule.h>
#include <LibWeb/Loader/Resource.h>
@ -52,9 +53,32 @@ public:
for (auto& rule : m_rules)
if (rule.type() == CSSRule::Type::Style) {
callback(downcast<StyleRule>(rule));
} else if (rule.type() == CSSRule::Type::Import) {
const CSSImportRule& import_rule = downcast<CSSImportRule>(rule);
if (import_rule.has_import_result())
import_rule.loaded_style_sheet()->for_each_effective_style_rule(callback);
}
}
template<typename Callback>
bool for_first_not_loaded_import_rule(Callback callback)
{
for (auto& rule : m_rules)
if (rule.type() == CSSRule::Type::Import) {
CSSImportRule& import_rule = downcast<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;
}
private:
explicit StyleSheet(NonnullRefPtrVector<CSSRule>&&);