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
38namespace blink {
39
40CSSFilterRule::CSSFilterRule(StyleRuleFilter* filterRule, CSSStyleSheet* parent)
41    : CSSRule(parent)
42    , m_filterRule(filterRule)
43{
44}
45
46CSSFilterRule::~CSSFilterRule()
47{
48#if !ENABLE(OILPAN)
49    if (m_propertiesCSSOMWrapper)
50        m_propertiesCSSOMWrapper->clearParentRule();
51#endif
52}
53
54CSSStyleDeclaration* 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
61String 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
79void 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
87void CSSFilterRule::trace(Visitor* visitor)
88{
89    visitor->trace(m_filterRule);
90    visitor->trace(m_propertiesCSSOMWrapper);
91    CSSRule::trace(visitor);
92}
93
94} // namespace blink
95
96