1 | /* |
2 | * Copyright (C) 2012 Apple Inc. 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 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "CSSParserContext.h" |
29 | #include "CSSStyleDeclaration.h" |
30 | #include "DeprecatedCSSOMValue.h" |
31 | #include <memory> |
32 | #include <wtf/HashMap.h> |
33 | #include <wtf/RefPtr.h> |
34 | #include <wtf/WeakPtr.h> |
35 | |
36 | namespace WebCore { |
37 | |
38 | class CSSRule; |
39 | class CSSProperty; |
40 | class CSSValue; |
41 | class MutableStyleProperties; |
42 | class StyleSheetContents; |
43 | class StyledElement; |
44 | |
45 | class PropertySetCSSStyleDeclaration : public CSSStyleDeclaration { |
46 | WTF_MAKE_ISO_ALLOCATED(PropertySetCSSStyleDeclaration); |
47 | public: |
48 | explicit PropertySetCSSStyleDeclaration(MutableStyleProperties& propertySet) |
49 | : m_propertySet(&propertySet) |
50 | { } |
51 | |
52 | virtual void clearParentElement() { ASSERT_NOT_REACHED(); } |
53 | |
54 | StyleSheetContents* contextStyleSheet() const; |
55 | |
56 | protected: |
57 | enum MutationType { NoChanges, PropertyChanged }; |
58 | |
59 | virtual CSSParserContext cssParserContext() const; |
60 | |
61 | MutableStyleProperties* m_propertySet; |
62 | std::unique_ptr<HashMap<CSSValue*, WeakPtr<DeprecatedCSSOMValue>>> m_cssomValueWrappers; |
63 | |
64 | private: |
65 | void ref() override; |
66 | void deref() override; |
67 | |
68 | CSSRule* parentRule() const override { return nullptr; } |
69 | unsigned length() const final; |
70 | String item(unsigned index) const final; |
71 | RefPtr<DeprecatedCSSOMValue> getPropertyCSSValue(const String& propertyName) final; |
72 | String getPropertyValue(const String& propertyName) final; |
73 | String getPropertyPriority(const String& propertyName) final; |
74 | String getPropertyShorthand(const String& propertyName) final; |
75 | bool isPropertyImplicit(const String& propertyName) final; |
76 | ExceptionOr<void> setProperty(const String& propertyName, const String& value, const String& priority) final; |
77 | ExceptionOr<String> removeProperty(const String& propertyName) final; |
78 | String cssText() const final; |
79 | ExceptionOr<void> setCssText(const String&) final; |
80 | RefPtr<CSSValue> getPropertyCSSValueInternal(CSSPropertyID) final; |
81 | String getPropertyValueInternal(CSSPropertyID) final; |
82 | ExceptionOr<bool> setPropertyInternal(CSSPropertyID, const String& value, bool important) final; |
83 | |
84 | Ref<MutableStyleProperties> copyProperties() const final; |
85 | |
86 | RefPtr<DeprecatedCSSOMValue> wrapForDeprecatedCSSOM(CSSValue*); |
87 | |
88 | virtual bool willMutate() WARN_UNUSED_RETURN { return true; } |
89 | virtual void didMutate(MutationType) { } |
90 | }; |
91 | |
92 | class StyleRuleCSSStyleDeclaration final : public PropertySetCSSStyleDeclaration { |
93 | WTF_MAKE_ISO_ALLOCATED(StyleRuleCSSStyleDeclaration); |
94 | public: |
95 | static Ref<StyleRuleCSSStyleDeclaration> create(MutableStyleProperties& propertySet, CSSRule& parentRule) |
96 | { |
97 | return adoptRef(*new StyleRuleCSSStyleDeclaration(propertySet, parentRule)); |
98 | } |
99 | virtual ~StyleRuleCSSStyleDeclaration(); |
100 | |
101 | void clearParentRule() { m_parentRule = nullptr; } |
102 | |
103 | void ref() final; |
104 | void deref() final; |
105 | |
106 | void reattach(MutableStyleProperties&); |
107 | |
108 | private: |
109 | StyleRuleCSSStyleDeclaration(MutableStyleProperties&, CSSRule&); |
110 | |
111 | CSSStyleSheet* parentStyleSheet() const final; |
112 | |
113 | CSSRule* parentRule() const final { return m_parentRule; } |
114 | |
115 | bool willMutate() final WARN_UNUSED_RETURN; |
116 | void didMutate(MutationType) final; |
117 | CSSParserContext cssParserContext() const final; |
118 | |
119 | unsigned m_refCount; |
120 | CSSRule* m_parentRule; |
121 | }; |
122 | |
123 | class InlineCSSStyleDeclaration final : public PropertySetCSSStyleDeclaration { |
124 | WTF_MAKE_ISO_ALLOCATED(InlineCSSStyleDeclaration); |
125 | public: |
126 | InlineCSSStyleDeclaration(MutableStyleProperties& propertySet, StyledElement& parentElement) |
127 | : PropertySetCSSStyleDeclaration(propertySet) |
128 | , m_parentElement(&parentElement) |
129 | { |
130 | } |
131 | |
132 | private: |
133 | CSSStyleSheet* parentStyleSheet() const final; |
134 | StyledElement* parentElement() const final { return m_parentElement; } |
135 | void clearParentElement() final { m_parentElement = nullptr; } |
136 | |
137 | bool willMutate() final WARN_UNUSED_RETURN; |
138 | void didMutate(MutationType) final; |
139 | CSSParserContext cssParserContext() const final; |
140 | |
141 | StyledElement* m_parentElement; |
142 | }; |
143 | |
144 | } // namespace WebCore |
145 | |