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1 /* | 1 /* |
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org) | 2 * (C) 1999-2003 Lars Knoll (knoll@kde.org) |
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All r
ights reserved. | 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All r
ights reserved. |
4 * Copyright (C) 2011 Research In Motion Limited. All rights reserved. | 4 * Copyright (C) 2011 Research In Motion Limited. All rights reserved. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
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27 #include "core/css/CSSCustomPropertyDeclaration.h" | 27 #include "core/css/CSSCustomPropertyDeclaration.h" |
28 #include "core/css/CSSKeyframesRule.h" | 28 #include "core/css/CSSKeyframesRule.h" |
29 #include "core/css/CSSStyleSheet.h" | 29 #include "core/css/CSSStyleSheet.h" |
30 #include "core/css/StylePropertySet.h" | 30 #include "core/css/StylePropertySet.h" |
31 #include "core/css/parser/CSSVariableParser.h" | 31 #include "core/css/parser/CSSVariableParser.h" |
32 #include "core/dom/Element.h" | 32 #include "core/dom/Element.h" |
33 #include "core/dom/MutationObserverInterestGroup.h" | 33 #include "core/dom/MutationObserverInterestGroup.h" |
34 #include "core/dom/MutationRecord.h" | 34 #include "core/dom/MutationRecord.h" |
35 #include "core/dom/StyleChangeReason.h" | 35 #include "core/dom/StyleChangeReason.h" |
36 #include "core/dom/StyleEngine.h" | 36 #include "core/dom/StyleEngine.h" |
| 37 #include "core/dom/custom/CustomElement.h" |
| 38 #include "core/dom/custom/CustomElementDefinition.h" |
37 #include "core/inspector/InspectorInstrumentation.h" | 39 #include "core/inspector/InspectorInstrumentation.h" |
38 #include "platform/RuntimeEnabledFeatures.h" | 40 #include "platform/RuntimeEnabledFeatures.h" |
39 | 41 |
40 namespace blink { | 42 namespace blink { |
41 | 43 |
42 namespace { | 44 namespace { |
43 | 45 |
| 46 static CustomElementDefinition* definitionIfStyleChangedCallback(Element* elemen
t) |
| 47 { |
| 48 CustomElementDefinition* definition = CustomElement::definitionForElement(el
ement); |
| 49 return definition && definition->hasStyleAttributeChangedCallback() |
| 50 ? definition : nullptr; |
| 51 } |
| 52 |
44 class StyleAttributeMutationScope { | 53 class StyleAttributeMutationScope { |
45 WTF_MAKE_NONCOPYABLE(StyleAttributeMutationScope); | 54 WTF_MAKE_NONCOPYABLE(StyleAttributeMutationScope); |
46 STACK_ALLOCATED(); | 55 STACK_ALLOCATED(); |
47 public: | 56 public: |
48 StyleAttributeMutationScope(AbstractPropertySetCSSStyleDeclaration* decl) | 57 StyleAttributeMutationScope(AbstractPropertySetCSSStyleDeclaration* decl) |
49 { | 58 { |
50 ++s_scopeCount; | 59 ++s_scopeCount; |
51 | 60 |
52 if (s_scopeCount != 1) { | 61 if (s_scopeCount != 1) { |
53 ASSERT(s_currentDecl == decl); | 62 ASSERT(s_currentDecl == decl); |
54 return; | 63 return; |
55 } | 64 } |
56 | 65 |
57 ASSERT(!s_currentDecl); | 66 ASSERT(!s_currentDecl); |
58 s_currentDecl = decl; | 67 s_currentDecl = decl; |
59 | 68 |
60 if (!s_currentDecl->parentElement()) | 69 if (!s_currentDecl->parentElement()) |
61 return; | 70 return; |
62 | 71 |
63 bool shouldReadOldValue = false; | 72 m_mutationRecipients = MutationObserverInterestGroup::createForAttribute
sMutation(*s_currentDecl->parentElement(), HTMLNames::styleAttr); |
| 73 bool shouldReadOldValue = |
| 74 (m_mutationRecipients && m_mutationRecipients->isOldValueRequested()
) |
| 75 || definitionIfStyleChangedCallback(s_currentDecl->parentElement()); |
64 | 76 |
65 m_mutationRecipients = MutationObserverInterestGroup::createForAttribute
sMutation(*s_currentDecl->parentElement(), HTMLNames::styleAttr); | |
66 if (m_mutationRecipients && m_mutationRecipients->isOldValueRequested()) | |
67 shouldReadOldValue = true; | |
68 | |
69 AtomicString oldValue; | |
70 if (shouldReadOldValue) | 77 if (shouldReadOldValue) |
71 oldValue = s_currentDecl->parentElement()->getAttribute(HTMLNames::s
tyleAttr); | 78 m_oldValue = s_currentDecl->parentElement()->getAttribute(HTMLNames:
:styleAttr); |
72 | 79 |
73 if (m_mutationRecipients) { | 80 if (m_mutationRecipients) { |
74 AtomicString requestedOldValue = m_mutationRecipients->isOldValueReq
uested() ? oldValue : nullAtom; | 81 AtomicString requestedOldValue = m_mutationRecipients->isOldValueReq
uested() ? m_oldValue : nullAtom; |
75 m_mutation = MutationRecord::createAttributes(s_currentDecl->parentE
lement(), HTMLNames::styleAttr, requestedOldValue); | 82 m_mutation = MutationRecord::createAttributes(s_currentDecl->parentE
lement(), HTMLNames::styleAttr, requestedOldValue); |
76 } | 83 } |
77 } | 84 } |
78 | 85 |
79 ~StyleAttributeMutationScope() | 86 ~StyleAttributeMutationScope() |
80 { | 87 { |
81 --s_scopeCount; | 88 --s_scopeCount; |
82 if (s_scopeCount) | 89 if (s_scopeCount) |
83 return; | 90 return; |
84 | 91 |
85 if (m_mutation && s_shouldDeliver) | 92 if (s_shouldDeliver) { |
86 m_mutationRecipients->enqueueMutationRecord(m_mutation); | 93 if (m_mutation) |
| 94 m_mutationRecipients->enqueueMutationRecord(m_mutation); |
87 | 95 |
88 s_shouldDeliver = false; | 96 Element* element = s_currentDecl->parentElement(); |
| 97 if (CustomElementDefinition* definition = definitionIfStyleChangedCa
llback(element)) { |
| 98 definition->enqueueAttributeChangedCallback(element, |
| 99 HTMLNames::styleAttr, m_oldValue, |
| 100 element->getAttribute(HTMLNames::styleAttr)); |
| 101 } |
| 102 |
| 103 s_shouldDeliver = false; |
| 104 } |
89 | 105 |
90 // We have to clear internal state before calling Inspector's code. | 106 // We have to clear internal state before calling Inspector's code. |
91 AbstractPropertySetCSSStyleDeclaration* localCopyStyleDecl = s_currentDe
cl; | 107 AbstractPropertySetCSSStyleDeclaration* localCopyStyleDecl = s_currentDe
cl; |
92 s_currentDecl = 0; | 108 s_currentDecl = 0; |
93 | 109 |
94 if (!s_shouldNotifyInspector) | 110 if (!s_shouldNotifyInspector) |
95 return; | 111 return; |
96 | 112 |
97 s_shouldNotifyInspector = false; | 113 s_shouldNotifyInspector = false; |
98 if (localCopyStyleDecl->parentElement()) | 114 if (localCopyStyleDecl->parentElement()) |
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110 } | 126 } |
111 | 127 |
112 private: | 128 private: |
113 static unsigned s_scopeCount; | 129 static unsigned s_scopeCount; |
114 static AbstractPropertySetCSSStyleDeclaration* s_currentDecl; | 130 static AbstractPropertySetCSSStyleDeclaration* s_currentDecl; |
115 static bool s_shouldNotifyInspector; | 131 static bool s_shouldNotifyInspector; |
116 static bool s_shouldDeliver; | 132 static bool s_shouldDeliver; |
117 | 133 |
118 Member<MutationObserverInterestGroup> m_mutationRecipients; | 134 Member<MutationObserverInterestGroup> m_mutationRecipients; |
119 Member<MutationRecord> m_mutation; | 135 Member<MutationRecord> m_mutation; |
| 136 AtomicString m_oldValue; |
120 }; | 137 }; |
121 | 138 |
122 unsigned StyleAttributeMutationScope::s_scopeCount = 0; | 139 unsigned StyleAttributeMutationScope::s_scopeCount = 0; |
123 AbstractPropertySetCSSStyleDeclaration* StyleAttributeMutationScope::s_currentDe
cl = 0; | 140 AbstractPropertySetCSSStyleDeclaration* StyleAttributeMutationScope::s_currentDe
cl = 0; |
124 bool StyleAttributeMutationScope::s_shouldNotifyInspector = false; | 141 bool StyleAttributeMutationScope::s_shouldNotifyInspector = false; |
125 bool StyleAttributeMutationScope::s_shouldDeliver = false; | 142 bool StyleAttributeMutationScope::s_shouldDeliver = false; |
126 | 143 |
127 } // namespace | 144 } // namespace |
128 | 145 |
129 DEFINE_TRACE(PropertySetCSSStyleDeclaration) | 146 DEFINE_TRACE(PropertySetCSSStyleDeclaration) |
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374 return m_parentElement ? &m_parentElement->document().elementSheet() : nullp
tr; | 391 return m_parentElement ? &m_parentElement->document().elementSheet() : nullp
tr; |
375 } | 392 } |
376 | 393 |
377 DEFINE_TRACE(InlineCSSStyleDeclaration) | 394 DEFINE_TRACE(InlineCSSStyleDeclaration) |
378 { | 395 { |
379 visitor->trace(m_parentElement); | 396 visitor->trace(m_parentElement); |
380 AbstractPropertySetCSSStyleDeclaration::trace(visitor); | 397 AbstractPropertySetCSSStyleDeclaration::trace(visitor); |
381 } | 398 } |
382 | 399 |
383 } // namespace blink | 400 } // namespace blink |
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