| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2012 Google 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef V8PerContextData_h | |
| 32 #define V8PerContextData_h | |
| 33 | |
| 34 #include "bindings/v8/CustomElementBinding.h" | |
| 35 #include "bindings/v8/ScopedPersistent.h" | |
| 36 #include "bindings/v8/V8PersistentValueMap.h" | |
| 37 #include "bindings/v8/WrapperTypeInfo.h" | |
| 38 #include "gin/public/context_holder.h" | |
| 39 #include "gin/public/gin_embedders.h" | |
| 40 #include <v8.h> | |
| 41 #include "wtf/HashMap.h" | |
| 42 #include "wtf/PassOwnPtr.h" | |
| 43 #include "wtf/Vector.h" | |
| 44 #include "wtf/text/AtomicString.h" | |
| 45 #include "wtf/text/AtomicStringHash.h" | |
| 46 | |
| 47 namespace WebCore { | |
| 48 | |
| 49 class CustomElementDefinition; | |
| 50 class V8DOMActivityLogger; | |
| 51 class V8PerContextData; | |
| 52 struct V8NPObject; | |
| 53 typedef WTF::Vector<V8NPObject*> V8NPObjectVector; | |
| 54 typedef WTF::HashMap<int, V8NPObjectVector> V8NPObjectMap; | |
| 55 | |
| 56 enum V8ContextEmbedderDataField { | |
| 57 v8ContextDebugIdIndex = static_cast<int>(gin::kDebugIdIndex), | |
| 58 v8ContextPerContextDataIndex = static_cast<int>(gin::kPerContextDataStartInd
ex + gin::kEmbedderBlink), | |
| 59 }; | |
| 60 | |
| 61 class V8PerContextData { | |
| 62 public: | |
| 63 static PassOwnPtr<V8PerContextData> create(v8::Handle<v8::Context>); | |
| 64 | |
| 65 static V8PerContextData* from(v8::Handle<v8::Context>); | |
| 66 | |
| 67 ~V8PerContextData(); | |
| 68 | |
| 69 v8::Handle<v8::Context> context() { return m_context.newLocal(m_isolate); } | |
| 70 | |
| 71 // To create JS Wrapper objects, we create a cache of a 'boiler plate' | |
| 72 // object, and then simply Clone that object each time we need a new one. | |
| 73 // This is faster than going through the full object creation process. | |
| 74 v8::Local<v8::Object> createWrapperFromCache(const WrapperTypeInfo* type) | |
| 75 { | |
| 76 v8::Local<v8::Object> boilerplate = m_wrapperBoilerplates.Get(type); | |
| 77 return !boilerplate.IsEmpty() ? boilerplate->Clone() : createWrapperFrom
CacheSlowCase(type); | |
| 78 } | |
| 79 | |
| 80 v8::Local<v8::Function> constructorForType(const WrapperTypeInfo* type) | |
| 81 { | |
| 82 v8::Local<v8::Function> function = m_constructorMap.Get(type); | |
| 83 return (!function.IsEmpty()) ? function : constructorForTypeSlowCase(typ
e); | |
| 84 } | |
| 85 | |
| 86 v8::Local<v8::Object> prototypeForType(const WrapperTypeInfo*); | |
| 87 | |
| 88 V8NPObjectMap* v8NPObjectMap() { return &m_v8NPObjectMap; } | |
| 89 | |
| 90 void addCustomElementBinding(CustomElementDefinition*, PassOwnPtr<CustomElem
entBinding>); | |
| 91 void clearCustomElementBinding(CustomElementDefinition*); | |
| 92 CustomElementBinding* customElementBinding(CustomElementDefinition*); | |
| 93 | |
| 94 V8DOMActivityLogger* activityLogger() const { return m_activityLogger; } | |
| 95 void setActivityLogger(V8DOMActivityLogger* activityLogger) { m_activityLogg
er = activityLogger; } | |
| 96 | |
| 97 v8::Handle<v8::Value> compiledPrivateScript(String); | |
| 98 void setCompiledPrivateScript(String, v8::Handle<v8::Value>); | |
| 99 | |
| 100 private: | |
| 101 V8PerContextData(v8::Handle<v8::Context>); | |
| 102 | |
| 103 v8::Local<v8::Object> createWrapperFromCacheSlowCase(const WrapperTypeInfo*)
; | |
| 104 v8::Local<v8::Function> constructorForTypeSlowCase(const WrapperTypeInfo*); | |
| 105 | |
| 106 v8::Isolate* m_isolate; | |
| 107 | |
| 108 // For each possible type of wrapper, we keep a boilerplate object. | |
| 109 // The boilerplate is used to create additional wrappers of the same type. | |
| 110 typedef V8PersistentValueMap<const WrapperTypeInfo*, v8::Object, false> Wrap
perBoilerplateMap; | |
| 111 WrapperBoilerplateMap m_wrapperBoilerplates; | |
| 112 | |
| 113 typedef V8PersistentValueMap<const WrapperTypeInfo*, v8::Function, false> Co
nstructorMap; | |
| 114 ConstructorMap m_constructorMap; | |
| 115 | |
| 116 V8NPObjectMap m_v8NPObjectMap; | |
| 117 | |
| 118 OwnPtr<gin::ContextHolder> m_contextHolder; | |
| 119 | |
| 120 ScopedPersistent<v8::Context> m_context; | |
| 121 ScopedPersistent<v8::Value> m_errorPrototype; | |
| 122 | |
| 123 typedef WTF::HashMap<CustomElementDefinition*, OwnPtr<CustomElementBinding>
> CustomElementBindingMap; | |
| 124 OwnPtr<CustomElementBindingMap> m_customElementBindings; | |
| 125 | |
| 126 // This is owned by a static hash map in V8DOMActivityLogger. | |
| 127 V8DOMActivityLogger* m_activityLogger; | |
| 128 | |
| 129 V8PersistentValueMap<String, v8::Value, false> m_compiledPrivateScript; | |
| 130 }; | |
| 131 | |
| 132 class V8PerContextDebugData { | |
| 133 public: | |
| 134 static bool setContextDebugData(v8::Handle<v8::Context>, const char* worldNa
me, int debugId); | |
| 135 static int contextDebugId(v8::Handle<v8::Context>); | |
| 136 }; | |
| 137 | |
| 138 } // namespace WebCore | |
| 139 | |
| 140 #endif // V8PerContextData_h | |
| OLD | NEW |