1 /* 2 * Copyright (C) 2009 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 V8WindowShell_h 32 #define V8WindowShell_h 33 34 #include "bindings/v8/DOMWrapperWorld.h" 35 #include "bindings/v8/ScopedPersistent.h" 36 #include "bindings/v8/V8PerContextData.h" 37 #include "bindings/v8/WrapperTypeInfo.h" 38 #include "weborigin/SecurityOrigin.h" 39 #include "wtf/Forward.h" 40 #include "wtf/HashMap.h" 41 #include "wtf/PassRefPtr.h" 42 #include "wtf/RefCounted.h" 43 #include "wtf/RefPtr.h" 44 #include "wtf/text/AtomicString.h" 45 #include <v8.h> 46 47 namespace WebCore { 48 49 class DOMWindow; 50 class Frame; 51 class HTMLDocument; 52 53 // V8WindowShell represents all the per-global object state for a Frame that 54 // persist between navigations. 55 class V8WindowShell { 56 public: 57 static PassOwnPtr<V8WindowShell> create(Frame*, PassRefPtr<DOMWrapperWorld>, v8::Isolate*); 58 59 v8::Local<v8::Context> context() const { return m_context.newLocal(m_isolate); } 60 61 // Update document object of the frame. 62 void updateDocument(); 63 64 void namedItemAdded(HTMLDocument*, const AtomicString&); 65 void namedItemRemoved(HTMLDocument*, const AtomicString&); 66 67 // Update the security origin of a document 68 // (e.g., after setting docoument.domain). 69 void updateSecurityOrigin(); 70 71 bool isContextInitialized() { return !m_context.isEmpty(); } 72 bool isGlobalInitialized() { return !m_global.isEmpty(); } 73 74 bool initializeIfNeeded(); 75 void updateDocumentWrapper(v8::Handle<v8::Object> wrapper); 76 77 void clearForNavigation(); 78 void clearForClose(bool destroyGlobal); 79 80 DOMWrapperWorld* world() { return m_world.get(); } 81 82 private: 83 V8WindowShell(Frame*, PassRefPtr<DOMWrapperWorld>, v8::Isolate*); 84 85 void disposeContext(); 86 87 void setSecurityToken(); 88 89 // The JavaScript wrapper for the document object is cached on the global 90 // object for fast access. UpdateDocumentProperty sets the wrapper 91 // for the current document on the global object. ClearDocumentProperty 92 // deletes the document wrapper from the global object. 93 void updateDocumentProperty(); 94 void clearDocumentProperty(); 95 96 void createContext(); 97 bool installDOMWindow(); 98 99 static V8WindowShell* enteredIsolatedWorldContext(); 100 101 Frame* m_frame; 102 RefPtr<DOMWrapperWorld> m_world; 103 v8::Isolate* m_isolate; 104 105 OwnPtr<V8PerContextData> m_perContextData; 106 107 ScopedPersistent<v8::Context> m_context; 108 ScopedPersistent<v8::Object> m_global; 109 ScopedPersistent<v8::Object> m_document; 110 }; 111 112 } // namespace WebCore 113 114 #endif // V8WindowShell_h 115