ladybird/Userland/Libraries/LibWeb/CSS/CSSMediaRule.cpp

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/*
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/Realm.h>
#include <LibWeb/Bindings/CSSMediaRulePrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/CSS/CSSMediaRule.h>
namespace Web::CSS {
WebIDL::ExceptionOr<JS::NonnullGCPtr<CSSMediaRule>> CSSMediaRule::create(JS::Realm& realm, MediaList& media_queries, CSSRuleList& rules)
{
return MUST_OR_THROW_OOM(realm.heap().allocate<CSSMediaRule>(realm, realm, media_queries, rules));
}
CSSMediaRule::CSSMediaRule(JS::Realm& realm, MediaList& media, CSSRuleList& rules)
: CSSConditionRule(realm, rules)
, m_media(media)
{
}
JS::ThrowCompletionOr<void> CSSMediaRule::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSMediaRulePrototype>(realm, "CSSMediaRule"));
return {};
}
void CSSMediaRule::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_media);
}
DeprecatedString CSSMediaRule::condition_text() const
{
return m_media->media_text();
}
void CSSMediaRule::set_condition_text(DeprecatedString text)
{
m_media->set_media_text(text);
}
// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
DeprecatedString CSSMediaRule::serialized() const
{
// The result of concatenating the following:
StringBuilder builder;
// 1. The string "@media", followed by a single SPACE (U+0020).
builder.append("@media "sv);
// 2. The result of performing serialize a media query list on rules media query list.
builder.append(condition_text());
// 3. A single SPACE (U+0020), followed by the string "{", i.e., LEFT CURLY BRACKET (U+007B), followed by a newline.
builder.append(" {\n"sv);
// 4. The result of performing serialize a CSS rule on each rule in the rules cssRules list, separated by a newline and indented by two spaces.
for (size_t i = 0; i < css_rules().length(); i++) {
auto rule = css_rules().item(i);
if (i != 0)
builder.append("\n"sv);
builder.append(" "sv);
builder.append(rule->css_text());
}
// 5. A newline, followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D)
builder.append("\n}"sv);
return builder.to_deprecated_string();
}
}