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LibWeb: Implement Geometry::DOMRectList

Implement DOMRectList that is used as a return type of
getClientRects functions on Element and Range.
This commit is contained in:
DerpyCrabs 2022-02-12 16:38:54 +03:00 committed by Andreas Kling
parent 0532d7d255
commit 2f828231c4
7 changed files with 101 additions and 0 deletions

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/*
* Copyright (c) 2022, DerpyCrabs <derpycrabs@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Geometry/DOMRect.h>
#include <LibWeb/Geometry/DOMRectList.h>
namespace Web::Geometry {
DOMRectList::DOMRectList(NonnullRefPtrVector<DOMRect>&& rects)
: m_rects(move(rects))
{
}
// https://drafts.fxtf.org/geometry-1/#dom-domrectlist-length
u32 DOMRectList::length() const
{
return m_rects.size();
}
// https://drafts.fxtf.org/geometry-1/#dom-domrectlist-item
DOMRect const* DOMRectList::item(u32 index) const
{
// The item(index) method, when invoked, must return null when
// index is greater than or equal to the number of DOMRect objects associated with the DOMRectList.
// Otherwise, the DOMRect object at index must be returned. Indices are zero-based.
if (index >= m_rects.size())
return nullptr;
return &m_rects[index];
}
bool DOMRectList::is_supported_property_index(u32 index) const
{
return index < m_rects.size();
}
}

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/*
* Copyright (c) 2022, DerpyCrabs <derpycrabs@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Noncopyable.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/RefCounted.h>
#include <AK/Vector.h>
#include <LibWeb/Bindings/Wrappable.h>
#include <LibWeb/Forward.h>
#include <LibWeb/Geometry/DOMRect.h>
namespace Web::Geometry {
// https://drafts.fxtf.org/geometry-1/#DOMRectList
class DOMRectList final
: public RefCounted<DOMRectList>
, public Bindings::Wrappable {
AK_MAKE_NONCOPYABLE(DOMRectList);
AK_MAKE_NONMOVABLE(DOMRectList);
public:
using WrapperType = Bindings::DOMRectListWrapper;
static NonnullRefPtr<DOMRectList> create(NonnullRefPtrVector<DOMRect>&& rects)
{
return adopt_ref(*new DOMRectList(move(rects)));
}
~DOMRectList() = default;
u32 length() const;
DOMRect const* item(u32 index) const;
bool is_supported_property_index(u32) const;
private:
DOMRectList(NonnullRefPtrVector<DOMRect>&& rects);
NonnullRefPtrVector<DOMRect> m_rects;
};
}

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[Exposed=Window]
interface DOMRectList {
getter DOMRect? item(unsigned long index);
readonly attribute unsigned long length;
iterable<DOMRect>;
};