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/*
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022-2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Bindings/MediaListPrototype.h>
#include <LibWeb/CSS/MediaList.h>
#include <LibWeb/CSS/Parser/Parser.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::CSS {
WebIDL::ExceptionOr<JS::NonnullGCPtr<MediaList>> MediaList::create(JS::Realm& realm, Vector<NonnullRefPtr<MediaQuery>>&& media)
{
return MUST_OR_THROW_OOM(realm.heap().allocate<MediaList>(realm, realm, move(media)));
}
MediaList::MediaList(JS::Realm& realm, Vector<NonnullRefPtr<MediaQuery>>&& media)
: Bindings::LegacyPlatformObject(realm)
, m_media(move(media))
{
}
JS::ThrowCompletionOr<void> MediaList::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::MediaListPrototype>(realm, "MediaList"));
return {};
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
DeprecatedString MediaList::media_text() const
{
return serialize_a_media_query_list(m_media).release_value_but_fixme_should_propagate_errors().to_deprecated_string();
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
void MediaList::set_media_text(DeprecatedString const& text)
{
m_media.clear();
if (text.is_empty())
return;
m_media = parse_media_query_list(Parser::ParsingContext { realm() }, text);
}
bool MediaList::is_supported_property_index(u32 index) const
{
return index < length();
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-item
DeprecatedString MediaList::item(u32 index) const
{
if (!is_supported_property_index(index))
return {};
return m_media[index]->to_string().release_value_but_fixme_should_propagate_errors().to_deprecated_string();
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-appendmedium
void MediaList::append_medium(DeprecatedString medium)
{
// 1. Let m be the result of parsing the given value.
auto m = parse_media_query(Parser::ParsingContext { realm() }, medium);
// 2. If m is null, then return.
if (!m)
return;
// 3. If comparing m with any of the media queries in the collection of media queries returns true, then return.
auto serialized = m->to_string().release_value_but_fixme_should_propagate_errors();
for (auto& existing_medium : m_media) {
if (existing_medium->to_string().release_value_but_fixme_should_propagate_errors() == serialized)
return;
}
// 4. Append m to the collection of media queries.
m_media.append(m.release_nonnull());
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-deletemedium
void MediaList::delete_medium(DeprecatedString medium)
{
auto m = parse_media_query(Parser::ParsingContext { realm() }, medium);
if (!m)
return;
m_media.remove_all_matching([&](auto& existing) -> bool {
return m->to_string().release_value_but_fixme_should_propagate_errors() == existing->to_string().release_value_but_fixme_should_propagate_errors();
});
// FIXME: If nothing was removed, then throw a NotFoundError exception.
}
bool MediaList::evaluate(HTML::Window const& window)
{
for (auto& media : m_media)
media->evaluate(window);
return matches();
}
bool MediaList::matches() const
{
if (m_media.is_empty()) {
return true;
}
for (auto& media : m_media) {
if (media->matches())
return true;
}
return false;
}
WebIDL::ExceptionOr<JS::Value> MediaList::item_value(size_t index) const
{
if (index >= m_media.size())
return JS::js_undefined();
return JS::PrimitiveString::create(vm(), m_media[index]->to_string().release_value_but_fixme_should_propagate_errors().to_deprecated_string());
}
}
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