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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 <LibWeb/CSS/MediaList.h>
- #include <LibWeb/CSS/Parser/Parser.h>
- #include <LibWeb/HTML/Window.h>
- namespace Web::CSS {
- MediaList* MediaList::create(HTML::Window& window_object, NonnullRefPtrVector<MediaQuery>&& media)
- {
- return window_object.heap().allocate<MediaList>(window_object.realm(), window_object, move(media));
- }
- MediaList::MediaList(HTML::Window& window_object, NonnullRefPtrVector<MediaQuery>&& media)
- : Bindings::LegacyPlatformObject(window_object.cached_web_prototype("MediaList"))
- , m_media(move(media))
- {
- }
- // https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
- String MediaList::media_text() const
- {
- return serialize_a_media_query_list(m_media);
- }
- // https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
- void MediaList::set_media_text(String const& text)
- {
- m_media.clear();
- if (text.is_empty())
- return;
- m_media = parse_media_query_list({}, text);
- }
- bool MediaList::is_supported_property_index(u32 index) const
- {
- return index < length();
- }
- // https://www.w3.org/TR/cssom-1/#dom-medialist-item
- String MediaList::item(u32 index) const
- {
- if (!is_supported_property_index(index))
- return {};
- return m_media[index].to_string();
- }
- // https://www.w3.org/TR/cssom-1/#dom-medialist-appendmedium
- void MediaList::append_medium(String medium)
- {
- auto m = parse_media_query({}, medium);
- if (!m)
- return;
- if (m_media.contains_slow(*m))
- return;
- m_media.append(m.release_nonnull());
- }
- // https://www.w3.org/TR/cssom-1/#dom-medialist-deletemedium
- void MediaList::delete_medium(String medium)
- {
- auto m = parse_media_query({}, medium);
- if (!m)
- return;
- m_media.remove_all_matching([&](auto& existing) -> bool {
- return m->to_string() == existing->to_string();
- });
- // 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
- {
- for (auto& media : m_media) {
- if (media.matches())
- return true;
- }
- return false;
- }
- JS::Value MediaList::item_value(size_t index) const
- {
- if (index >= m_media.size())
- return JS::js_undefined();
- return JS::js_string(vm(), m_media[index].to_string());
- }
- }
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