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 "Attribute.h"
27#include "CSSPropertyNames.h"
28#include "CSSValueKeywords.h"
29#include "HTMLNames.h"
30#include "RenderBR.h"
31
32namespace WebCore {
33
34using namespace HTMLNames;
35
36HTMLBRElement::HTMLBRElement(const QualifiedName& tagName, Document* document)
37    : HTMLElement(tagName, document)
38{
39    ASSERT(hasTagName(brTag));
40}
41
42PassRefPtr<HTMLBRElement> HTMLBRElement::create(Document* document)
43{
44    return adoptRef(new HTMLBRElement(brTag, document));
45}
46
47PassRefPtr<HTMLBRElement> HTMLBRElement::create(const QualifiedName& tagName, Document* document)
48{
49    return adoptRef(new HTMLBRElement(tagName, document));
50}
51
52bool HTMLBRElement::isPresentationAttribute(const QualifiedName& name) const
53{
54    if (name == clearAttr)
55        return true;
56    return HTMLElement::isPresentationAttribute(name);
57}
58
59void HTMLBRElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
60{
61    if (name == clearAttr) {
62        // If the string is empty, then don't add the clear property.
63        // <br clear> and <br clear=""> are just treated like <br> by Gecko, Mac IE, etc. -dwh
64        if (!value.isEmpty()) {
65            if (equalIgnoringCase(value, "all"))
66                addPropertyToPresentationAttributeStyle(style, CSSPropertyClear, CSSValueBoth);
67            else
68                addPropertyToPresentationAttributeStyle(style, CSSPropertyClear, value);
69        }
70    } else
71        HTMLElement::collectStyleForPresentationAttribute(name, value, style);
72}
73
74RenderObject* HTMLBRElement::createRenderer(RenderArena* arena, RenderStyle* style)
75{
76     if (style->hasContent())
77        return RenderObject::createObject(this, style);
78
79     return new (arena) RenderBR(this);
80}
81
82}
83