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76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/Realm.h>
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#include <LibWeb/Bindings/CSSMediaRulePrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSMediaRule.h>
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namespace Web::CSS {
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JS_DEFINE_ALLOCATOR(CSSMediaRule);
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JS::NonnullGCPtr<CSSMediaRule> CSSMediaRule::create(JS::Realm& realm, MediaList& media_queries, CSSRuleList& rules)
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{
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return realm.heap().allocate<CSSMediaRule>(realm, realm, media_queries, rules);
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}
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CSSMediaRule::CSSMediaRule(JS::Realm& realm, MediaList& media, CSSRuleList& rules)
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: CSSConditionRule(realm, rules)
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, m_media(media)
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{
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}
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void CSSMediaRule::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSMediaRule);
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}
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void CSSMediaRule::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_media);
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}
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String CSSMediaRule::condition_text() const
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{
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return m_media->media_text();
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}
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// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
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String CSSMediaRule::serialized() const
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{
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// The result of concatenating the following:
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StringBuilder builder;
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// 1. The string "@media", followed by a single SPACE (U+0020).
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builder.append("@media "sv);
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// 2. The result of performing serialize a media query list on rule’s media query list.
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builder.append(condition_text());
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// 3. A single SPACE (U+0020), followed by the string "{", i.e., LEFT CURLY BRACKET (U+007B), followed by a newline.
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builder.append(" {\n"sv);
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// AD-HOC: All modern browsers omit the ending newline if there are no CSS rules, so let's do the same.
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if (css_rules().length() == 0) {
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builder.append('}');
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return MUST(builder.to_string());
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}
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// 4. The result of performing serialize a CSS rule on each rule in the rule’s cssRules list, separated by a newline and indented by two spaces.
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for (size_t i = 0; i < css_rules().length(); i++) {
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auto rule = css_rules().item(i);
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if (i != 0)
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builder.append("\n"sv);
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builder.append(" "sv);
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builder.append(rule->css_text());
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}
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// 5. A newline, followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D)
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builder.append("\n}"sv);
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return MUST(builder.to_string());
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}
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}
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