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 "core/html/HTMLBRElement.h"
25
26#include "core/CSSPropertyNames.h"
27#include "core/CSSValueKeywords.h"
28#include "core/HTMLNames.h"
29#include "core/rendering/RenderBR.h"
30
31namespace blink {
32
33using namespace HTMLNames;
34
35inline HTMLBRElement::HTMLBRElement(Document& document)
36    : HTMLElement(brTag, document)
37{
38}
39
40DEFINE_NODE_FACTORY(HTMLBRElement)
41
42bool HTMLBRElement::isPresentationAttribute(const QualifiedName& name) const
43{
44    if (name == clearAttr)
45        return true;
46    return HTMLElement::isPresentationAttribute(name);
47}
48
49void HTMLBRElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
50{
51    if (name == clearAttr) {
52        // If the string is empty, then don't add the clear property.
53        // <br clear> and <br clear=""> are just treated like <br> by Gecko, Mac IE, etc. -dwh
54        if (!value.isEmpty()) {
55            if (equalIgnoringCase(value, "all"))
56                addPropertyToPresentationAttributeStyle(style, CSSPropertyClear, CSSValueBoth);
57            else
58                addPropertyToPresentationAttributeStyle(style, CSSPropertyClear, value);
59        }
60    } else
61        HTMLElement::collectStyleForPresentationAttribute(name, value, style);
62}
63
64RenderObject* HTMLBRElement::createRenderer(RenderStyle* style)
65{
66    if (style->hasContent())
67        return RenderObject::createObject(this, style);
68
69    return new RenderBR(this);
70}
71
72}
73