1 /*
2 * Copyright (C) 2012 Intel Corporation. All rights reserved.
3 * Copyright (C) 2012 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer.
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
26 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
27 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "core/css/CSSViewportRule.h"
33
34 #include "core/css/PropertySetCSSStyleDeclaration.h"
35 #include "core/css/StylePropertySet.h"
36 #include "core/css/StyleRule.h"
37 #include "wtf/text/StringBuilder.h"
38
39 namespace blink {
40
CSSViewportRule(StyleRuleViewport * viewportRule,CSSStyleSheet * sheet)41 CSSViewportRule::CSSViewportRule(StyleRuleViewport* viewportRule, CSSStyleSheet* sheet)
42 : CSSRule(sheet)
43 , m_viewportRule(viewportRule)
44 {
45 }
46
~CSSViewportRule()47 CSSViewportRule::~CSSViewportRule()
48 {
49 #if !ENABLE(OILPAN)
50 if (m_propertiesCSSOMWrapper)
51 m_propertiesCSSOMWrapper->clearParentRule();
52 #endif
53 }
54
style() const55 CSSStyleDeclaration* CSSViewportRule::style() const
56 {
57 if (!m_propertiesCSSOMWrapper)
58 m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_viewportRule->mutableProperties(), const_cast<CSSViewportRule*>(this));
59
60 return m_propertiesCSSOMWrapper.get();
61 }
62
cssText() const63 String CSSViewportRule::cssText() const
64 {
65 StringBuilder result;
66 result.appendLiteral("@viewport { ");
67
68 String decls = m_viewportRule->properties().asText();
69 result.append(decls);
70 if (!decls.isEmpty())
71 result.append(' ');
72
73 result.append('}');
74
75 return result.toString();
76 }
77
reattach(StyleRuleBase * rule)78 void CSSViewportRule::reattach(StyleRuleBase* rule)
79 {
80 ASSERT(rule);
81 m_viewportRule = toStyleRuleViewport(rule);
82 if (m_propertiesCSSOMWrapper)
83 m_propertiesCSSOMWrapper->reattach(m_viewportRule->mutableProperties());
84 }
85
trace(Visitor * visitor)86 void CSSViewportRule::trace(Visitor* visitor)
87 {
88 visitor->trace(m_viewportRule);
89 visitor->trace(m_propertiesCSSOMWrapper);
90 CSSRule::trace(visitor);
91 }
92
93 } // namespace blink
94