1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "config.h"
6#include "core/html/DocumentNameCollection.h"
7
8#include "core/html/HTMLEmbedElement.h"
9#include "core/html/HTMLFormElement.h"
10#include "core/html/HTMLObjectElement.h"
11
12namespace blink {
13
14DocumentNameCollection::DocumentNameCollection(ContainerNode& document, const AtomicString& name)
15    : HTMLNameCollection(document, DocumentNamedItems, name)
16{
17}
18
19bool DocumentNameCollection::elementMatches(const HTMLElement& element) const
20{
21    // Match images, forms, applets, embeds, objects and iframes by name,
22    // applets and object by id, and images by id but only if they have
23    // a name attribute (this very strange rule matches IE)
24    if (isHTMLFormElement(element) || isHTMLIFrameElement(element) || (isHTMLEmbedElement(element) && toHTMLEmbedElement(element).isExposed()))
25        return element.getNameAttribute() == m_name;
26    if (isHTMLAppletElement(element) || (isHTMLObjectElement(element) && toHTMLObjectElement(element).isExposed()))
27        return element.getNameAttribute() == m_name || element.getIdAttribute() == m_name;
28    if (isHTMLImageElement(element))
29        return element.getNameAttribute() == m_name || (element.getIdAttribute() == m_name && element.hasName());
30    return false;
31}
32
33} // namespace blink
34