1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2000 Simon Hausmann <hausmann@kde.org>
5 * Copyright (C) 2003, 2006, 2009, 2010 Apple Inc. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#include "config.h"
24#include "HTMLBRElement.h"
25
26#include "CSSPropertyNames.h"
27#include "CSSValueKeywords.h"
28#include "HTMLNames.h"
29#include "RenderLineBreak.h"
30#include <wtf/IsoMallocInlines.h>
31
32namespace WebCore {
33
34WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLBRElement);
35
36using namespace HTMLNames;
37
38HTMLBRElement::HTMLBRElement(const QualifiedName& tagName, Document& document)
39 : HTMLElement(tagName, document)
40{
41 ASSERT(hasTagName(brTag));
42}
43
44Ref<HTMLBRElement> HTMLBRElement::create(Document& document)
45{
46 return adoptRef(*new HTMLBRElement(brTag, document));
47}
48
49Ref<HTMLBRElement> HTMLBRElement::create(const QualifiedName& tagName, Document& document)
50{
51 return adoptRef(*new HTMLBRElement(tagName, document));
52}
53
54bool HTMLBRElement::isPresentationAttribute(const QualifiedName& name) const
55{
56 if (name == clearAttr)
57 return true;
58 return HTMLElement::isPresentationAttribute(name);
59}
60
61void HTMLBRElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStyleProperties& style)
62{
63 if (name == clearAttr) {
64 // If the string is empty, then don't add the clear property.
65 // <br clear> and <br clear=""> are just treated like <br> by Gecko, Mac IE, etc. -dwh
66 if (!value.isEmpty()) {
67 if (equalLettersIgnoringASCIICase(value, "all"))
68 addPropertyToPresentationAttributeStyle(style, CSSPropertyClear, CSSValueBoth);
69 else
70 addPropertyToPresentationAttributeStyle(style, CSSPropertyClear, value);
71 }
72 } else
73 HTMLElement::collectStyleForPresentationAttribute(name, value, style);
74}
75
76RenderPtr<RenderElement> HTMLBRElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
77{
78 if (style.hasContent())
79 return RenderElement::createFor(*this, WTFMove(style));
80
81 return createRenderer<RenderLineBreak>(*this, WTFMove(style));
82}
83
84}
85