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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef DOMRequestState_h 27 #define DOMRequestState_h 28 29 #include "bindings/v8/DOMWrapperWorld.h" 30 #include "bindings/v8/V8Binding.h" 31 #include "core/dom/ExecutionContext.h" 32 #include "v8.h" 33 #include "wtf/RefPtr.h" 34 35 namespace WebCore { 36 37 class DOMRequestState { 38 public: DOMRequestState(ExecutionContext * executionContext)39 explicit DOMRequestState(ExecutionContext* executionContext) 40 : m_executionContext(executionContext) 41 , m_world(DOMWrapperWorld::current()) 42 , m_isolate(toIsolate(executionContext)) 43 { 44 ASSERT(m_executionContext); 45 } 46 clear()47 void clear() 48 { 49 m_executionContext = 0; 50 m_world.clear(); 51 } 52 53 class Scope { 54 public: Scope(DOMRequestState & state)55 explicit Scope(DOMRequestState& state) 56 : m_handleScope(state.isolate()) 57 , m_contextScope(state.context()) 58 { 59 } 60 private: 61 v8::HandleScope m_handleScope; 62 v8::Context::Scope m_contextScope; 63 }; 64 context()65 v8::Local<v8::Context> context() 66 { 67 ASSERT(m_executionContext); 68 return toV8Context(m_executionContext, m_world.get()); 69 } 70 isolate()71 v8::Isolate* isolate() const 72 { 73 return m_isolate; 74 } 75 isValid()76 bool isValid() const { return m_executionContext; } 77 78 private: 79 ExecutionContext* m_executionContext; 80 RefPtr<DOMWrapperWorld> m_world; 81 v8::Isolate* m_isolate; 82 }; 83 84 } 85 #endif 86