/* * Copyright (C) 2009, 2010 Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef SerializedScriptValue_h #define SerializedScriptValue_h #include "ScriptValue.h" #include "V8Binding.h" #include <v8.h> #include <wtf/RefCounted.h> namespace WebCore { class SerializedScriptValue : public RefCounted<SerializedScriptValue> { public: // Deserializes the given value and sets it as a property on the // object. static void deserializeAndSetProperty(v8::Handle<v8::Object> object, const char* propertyName, v8::PropertyAttribute attribute, SerializedScriptValue* value) { if (!value) return; v8::Handle<v8::Value> deserialized = value->deserialize(); object->ForceSet(v8::String::NewSymbol(propertyName), deserialized, attribute); } // Creates a serialized representation of the given V8 value. static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value> value) { bool didThrow; return adoptRef(new SerializedScriptValue(value, didThrow)); } // Creates a serialized representation of the given V8 value. // // If a serialization error occurs (e.g., cyclic input value) this // function returns an empty representation, schedules a V8 exception to // be thrown using v8::ThrowException(), and sets |didThrow|. In this case // the caller must not invoke any V8 operations until control returns to // V8. When serialization is successful, |didThrow| is false. static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value> value, bool& didThrow) { return adoptRef(new SerializedScriptValue(value, didThrow)); } // Creates a serialized value with the given data obtained from a // prior call to toWireString(). static PassRefPtr<SerializedScriptValue> createFromWire(String data) { return adoptRef(new SerializedScriptValue(data, WireData)); } // Creates a serialized representation of WebCore string. static PassRefPtr<SerializedScriptValue> create(String data) { return adoptRef(new SerializedScriptValue(data, StringValue)); } // Creates an empty serialized value. static PassRefPtr<SerializedScriptValue> create() { return adoptRef(new SerializedScriptValue()); } PassRefPtr<SerializedScriptValue> release() { RefPtr<SerializedScriptValue> result = adoptRef(new SerializedScriptValue(m_data, WireData)); m_data = String(); return result.release(); } String toWireString() const { return m_data; } // Deserializes the value (in the current context). Returns a null value in // case of failure. v8::Handle<v8::Value> deserialize(); private: enum StringDataMode { StringValue, WireData }; SerializedScriptValue() { } SerializedScriptValue(v8::Handle<v8::Value>, bool& didThrow); SerializedScriptValue(String data, StringDataMode mode); String m_data; }; } // namespace WebCore #endif // SerializedScriptValue_h