1 /*
2 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following
13 * disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include "config.h"
31 #include "core/css/CSSFilterRule.h"
32
33 #include "core/css/PropertySetCSSStyleDeclaration.h"
34 #include "core/css/StylePropertySet.h"
35 #include "core/css/StyleRule.h"
36 #include "wtf/text/StringBuilder.h"
37
38 namespace WebCore {
39
CSSFilterRule(StyleRuleFilter * filterRule,CSSStyleSheet * parent)40 CSSFilterRule::CSSFilterRule(StyleRuleFilter* filterRule, CSSStyleSheet* parent)
41 : CSSRule(parent)
42 , m_filterRule(filterRule)
43 {
44 }
45
~CSSFilterRule()46 CSSFilterRule::~CSSFilterRule()
47 {
48 #if !ENABLE(OILPAN)
49 if (m_propertiesCSSOMWrapper)
50 m_propertiesCSSOMWrapper->clearParentRule();
51 #endif
52 }
53
style() const54 CSSStyleDeclaration* CSSFilterRule::style() const
55 {
56 if (!m_propertiesCSSOMWrapper)
57 m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_filterRule->mutableProperties(), const_cast<CSSFilterRule*>(this));
58 return m_propertiesCSSOMWrapper.get();
59 }
60
cssText() const61 String CSSFilterRule::cssText() const
62 {
63 StringBuilder result;
64 result.appendLiteral("@-webkit-filter ");
65
66 String filterName = m_filterRule->filterName();
67 result.append(filterName);
68 result.appendLiteral(" { ");
69
70 String descs = m_filterRule->properties().asText();
71 result.append(descs);
72 if (!descs.isEmpty())
73 result.append(' ');
74 result.append('}');
75
76 return result.toString();
77 }
78
reattach(StyleRuleBase * rule)79 void CSSFilterRule::reattach(StyleRuleBase* rule)
80 {
81 ASSERT(rule);
82 m_filterRule = toStyleRuleFilter(rule);
83 if (m_propertiesCSSOMWrapper)
84 m_propertiesCSSOMWrapper->reattach(m_filterRule->mutableProperties());
85 }
86
trace(Visitor * visitor)87 void CSSFilterRule::trace(Visitor* visitor)
88 {
89 visitor->trace(m_filterRule);
90 visitor->trace(m_propertiesCSSOMWrapper);
91 CSSRule::trace(visitor);
92 }
93
94 } // namespace WebCore
95
96