1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 16:27:35 +00:00

LibWeb: Add MediaList

This is a list of MediaQuery objects. Not to be confused with
`MediaQueryList`, which is concerned with firing events when a media
query's match-state changes.
This commit is contained in:
Sam Atkins 2021-09-29 12:08:09 +01:00 committed by Andreas Kling
parent 0a4d9c6d31
commit 8ac622f056
4 changed files with 116 additions and 0 deletions

View file

@ -25,6 +25,7 @@ set(SOURCES
CSS/ResolvedCSSStyleDeclaration.cpp
CSS/DefaultStyleSheetSource.cpp
CSS/Length.cpp
CSS/MediaList.cpp
CSS/MediaQuery.cpp
CSS/MediaQueryList.cpp
CSS/Parser/Parser.cpp

View file

@ -0,0 +1,70 @@
/*
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/CSS/MediaList.h>
#include <LibWeb/CSS/Parser/Parser.h>
namespace Web::CSS {
MediaList::MediaList(NonnullRefPtrVector<MediaQuery>&& media)
: m_media(move(media))
{
}
MediaList::~MediaList()
{
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
String MediaList::media_text() const
{
StringBuilder builder;
builder.join(", ", m_media);
return builder.to_string();
}
// 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);
}
// https://www.w3.org/TR/cssom-1/#dom-medialist-item
Optional<String> MediaList::item(size_t index) const
{
if (index >= length())
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.
}
}

View file

@ -0,0 +1,38 @@
/*
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullRefPtrVector.h>
#include <AK/Optional.h>
#include <AK/RefCounted.h>
#include <LibWeb/CSS/MediaQuery.h>
namespace Web::CSS {
// https://www.w3.org/TR/cssom-1/#the-medialist-interface
class MediaList final : public RefCounted<MediaList> {
public:
static NonnullRefPtr<MediaList> create(NonnullRefPtrVector<MediaQuery>&& media)
{
return adopt_ref(*new MediaList(move(media)));
}
~MediaList();
String media_text() const;
void set_media_text(String const&);
size_t length() const { return m_media.size(); }
Optional<String> item(size_t index) const;
void append_medium(String);
void delete_medium(String);
private:
explicit MediaList(NonnullRefPtrVector<MediaQuery>&&);
NonnullRefPtrVector<MediaQuery> m_media;
};
}

View file

@ -0,0 +1,7 @@
interface MediaList {
stringifier attribute [LegacyNullToEmptyString] CSSOMString mediaText;
readonly attribute unsigned long length;
getter CSSOMString? item(unsigned long index);
undefined appendMedium(CSSOMString medium);
undefined deleteMedium(CSSOMString medium);
};