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LibWeb: Parse @media rules into CSSMediaRule objects

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This is not yet actually useful, since we only have a stub for parsing
the query part, but now I have a nice way to test that things are
working. :^)
This commit is contained in:
Sam Atkins 2021-09-29 15:51:22 +01:00 • committed by Andreas Kling
parent b4833bf2a3
commit c7cd489689
1 changed files with 16 additions and 0 deletions
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16
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -11,6 +11,7 @@
#include <AK/Debug.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/SourceLocation.h>
#include <LibWeb/CSS/CSSMediaRule.h>
#include <LibWeb/CSS/CSSStyleDeclaration.h>
#include <LibWeb/CSS/CSSStyleRule.h>
#include <LibWeb/CSS/CSSStyleSheet.h>
@ -1242,6 +1243,21 @@ RefPtr<CSSRule> Parser::convert_to_rule(NonnullRefPtr<StyleRule> rule)
if (rule->m_type == StyleRule::Type::At) {
if (has_ignored_vendor_prefix(rule->m_name)) {
return {};
} else if (rule->m_name.equals_ignoring_case("media"sv)) {
auto media_query_tokens = TokenStream { rule->prelude() };
auto media_query_list = parse_a_media_query_list(media_query_tokens);
auto child_tokens = TokenStream { rule->block().values() };
auto parser_rules = consume_a_list_of_rules(child_tokens, false);
NonnullRefPtrVector<CSSRule> child_rules;
for (auto& raw_rule : parser_rules) {
if (auto child_rule = convert_to_rule(raw_rule))
child_rules.append(*child_rule);
}
return CSSMediaRule::create(MediaList::create(move(media_query_list)), move(child_rules));
} else if (rule->m_name.equals_ignoring_case("import"sv) && !rule->prelude().is_empty()) {
Optional<AK::URL> url;