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 "third_party/blink/renderer/core/html/html_br_element.h"
24
25 #include "third_party/blink/renderer/core/css/css_property_names.h"
26 #include "third_party/blink/renderer/core/css_value_keywords.h"
27 #include "third_party/blink/renderer/core/html_names.h"
28 #include "third_party/blink/renderer/core/layout/layout_br.h"
29
30 namespace blink {
31
HTMLBRElement(Document & document)32 HTMLBRElement::HTMLBRElement(Document& document)
33 : HTMLElement(html_names::kBrTag, document) {}
34
IsPresentationAttribute(const QualifiedName & name) const35 bool HTMLBRElement::IsPresentationAttribute(const QualifiedName& name) const {
36 if (name == html_names::kClearAttr)
37 return true;
38 return HTMLElement::IsPresentationAttribute(name);
39 }
40
CollectStyleForPresentationAttribute(const QualifiedName & name,const AtomicString & value,MutableCSSPropertyValueSet * style)41 void HTMLBRElement::CollectStyleForPresentationAttribute(
42 const QualifiedName& name,
43 const AtomicString& value,
44 MutableCSSPropertyValueSet* style) {
45 if (name == html_names::kClearAttr) {
46 // If the string is empty, then don't add the clear property.
47 // <br clear> and <br clear=""> are just treated like <br> by Gecko, Mac IE,
48 // etc. -dwh
49 if (!value.IsEmpty()) {
50 if (EqualIgnoringASCIICase(value, "all")) {
51 AddPropertyToPresentationAttributeStyle(style, CSSPropertyID::kClear,
52 CSSValueID::kBoth);
53 } else {
54 AddPropertyToPresentationAttributeStyle(style, CSSPropertyID::kClear,
55 value);
56 }
57 }
58 } else {
59 HTMLElement::CollectStyleForPresentationAttribute(name, value, style);
60 }
61 }
62
CreateLayoutObject(const ComputedStyle & style,LegacyLayout legacy)63 LayoutObject* HTMLBRElement::CreateLayoutObject(const ComputedStyle& style,
64 LegacyLayout legacy) {
65 if (style.ContentBehavesAsNormal())
66 return new LayoutBR(this);
67 return LayoutObject::CreateObject(this, style, legacy);
68 }
69
70 } // namespace blink
71