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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 26 matching lines...) Expand all Loading... |
| 37 #include "wtf/RawPtr.h" | 37 #include "wtf/RawPtr.h" |
| 38 #include "wtf/text/AtomicString.h" | 38 #include "wtf/text/AtomicString.h" |
| 39 #include <v8.h> | 39 #include <v8.h> |
| 40 | 40 |
| 41 namespace blink { | 41 namespace blink { |
| 42 | 42 |
| 43 class Node; | 43 class Node; |
| 44 struct WrapperTypeInfo; | 44 struct WrapperTypeInfo; |
| 45 | 45 |
| 46 class V8DOMWrapper { | 46 class V8DOMWrapper { |
| 47 STATIC_ONLY(V8DOMWrapper); |
| 47 public: | 48 public: |
| 48 static v8::Local<v8::Object> createWrapper(v8::Isolate*, v8::Local<v8::Objec
t> creationContext, const WrapperTypeInfo*, ScriptWrappable*); | 49 static v8::Local<v8::Object> createWrapper(v8::Isolate*, v8::Local<v8::Objec
t> creationContext, const WrapperTypeInfo*, ScriptWrappable*); |
| 49 static bool isWrapper(v8::Isolate*, v8::Local<v8::Value>); | 50 static bool isWrapper(v8::Isolate*, v8::Local<v8::Value>); |
| 50 | 51 |
| 51 // Associates the given ScriptWrappable with the given |wrapper| if the | 52 // Associates the given ScriptWrappable with the given |wrapper| if the |
| 52 // ScriptWrappable is not yet associated with any wrapper. Returns the | 53 // ScriptWrappable is not yet associated with any wrapper. Returns the |
| 53 // wrapper already associated or |wrapper| if not yet associated. | 54 // wrapper already associated or |wrapper| if not yet associated. |
| 54 // The caller should always use the returned value rather than |wrapper|. | 55 // The caller should always use the returned value rather than |wrapper|. |
| 55 static v8::Local<v8::Object> associateObjectWithWrapper(v8::Isolate*, Script
Wrappable*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) WARN_UNUSED_R
ETURN; | 56 static v8::Local<v8::Object> associateObjectWithWrapper(v8::Isolate*, Script
Wrappable*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) WARN_UNUSED_R
ETURN; |
| 56 static v8::Local<v8::Object> associateObjectWithWrapper(v8::Isolate*, Node*,
const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) WARN_UNUSED_RETURN; | 57 static v8::Local<v8::Object> associateObjectWithWrapper(v8::Isolate*, Node*,
const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) WARN_UNUSED_RETURN; |
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| 98 if (DOMDataStore::setWrapper(isolate, node, wrapperTypeInfo, wrapper)) { | 99 if (DOMDataStore::setWrapper(isolate, node, wrapperTypeInfo, wrapper)) { |
| 99 wrapperTypeInfo->refObject(ScriptWrappable::fromNode(node)); | 100 wrapperTypeInfo->refObject(ScriptWrappable::fromNode(node)); |
| 100 setNativeInfo(wrapper, wrapperTypeInfo, ScriptWrappable::fromNode(node))
; | 101 setNativeInfo(wrapper, wrapperTypeInfo, ScriptWrappable::fromNode(node))
; |
| 101 ASSERT(hasInternalFieldsSet(wrapper)); | 102 ASSERT(hasInternalFieldsSet(wrapper)); |
| 102 } | 103 } |
| 103 RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(toScriptWrappable(wrapper) == Scrip
tWrappable::fromNode(node)); | 104 RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(toScriptWrappable(wrapper) == Scrip
tWrappable::fromNode(node)); |
| 104 return wrapper; | 105 return wrapper; |
| 105 } | 106 } |
| 106 | 107 |
| 107 class V8WrapperInstantiationScope { | 108 class V8WrapperInstantiationScope { |
| 109 STACK_ALLOCATED(); |
| 108 public: | 110 public: |
| 109 V8WrapperInstantiationScope(v8::Local<v8::Object> creationContext, v8::Isola
te* isolate) | 111 V8WrapperInstantiationScope(v8::Local<v8::Object> creationContext, v8::Isola
te* isolate) |
| 110 : m_didEnterContext(false) | 112 : m_didEnterContext(false) |
| 111 , m_context(isolate->GetCurrentContext()) | 113 , m_context(isolate->GetCurrentContext()) |
| 112 { | 114 { |
| 113 // creationContext should not be empty. Because if we have an | 115 // creationContext should not be empty. Because if we have an |
| 114 // empty creationContext, we will end up creating | 116 // empty creationContext, we will end up creating |
| 115 // a new object in the context currently entered. This is wrong. | 117 // a new object in the context currently entered. This is wrong. |
| 116 RELEASE_ASSERT(!creationContext.IsEmpty()); | 118 RELEASE_ASSERT(!creationContext.IsEmpty()); |
| 117 v8::Local<v8::Context> contextForWrapper = creationContext->CreationCont
ext(); | 119 v8::Local<v8::Context> contextForWrapper = creationContext->CreationCont
ext(); |
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| 134 v8::Local<v8::Context> context() const { return m_context; } | 136 v8::Local<v8::Context> context() const { return m_context; } |
| 135 | 137 |
| 136 private: | 138 private: |
| 137 bool m_didEnterContext; | 139 bool m_didEnterContext; |
| 138 v8::Local<v8::Context> m_context; | 140 v8::Local<v8::Context> m_context; |
| 139 }; | 141 }; |
| 140 | 142 |
| 141 } // namespace blink | 143 } // namespace blink |
| 142 | 144 |
| 143 #endif // V8DOMWrapper_h | 145 #endif // V8DOMWrapper_h |
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