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 "gin/public/context_holder.h" 39 #include "platform/weborigin/SecurityOrigin.h" 40 #include "wtf/Forward.h" 41 #include "wtf/HashMap.h" 42 #include "wtf/PassRefPtr.h" 43 #include "wtf/RefCounted.h" 44 #include "wtf/RefPtr.h" 45 #include "wtf/text/AtomicString.h" 46 #include <v8.h> 47 48 namespace WebCore { 49 50 class DOMWindow; 51 class Frame; 52 class HTMLDocument; 53 54 // V8WindowShell represents all the per-global object state for a Frame that 55 // persist between navigations. 56 class V8WindowShell { 57 public: 58 static PassOwnPtr<V8WindowShell> create(Frame*, PassRefPtr<DOMWrapperWorld>, v8::Isolate*); 59 context()60 v8::Local<v8::Context> context() const { return m_contextHolder ? m_contextHolder->context() : v8::Local<v8::Context>(); } 61 62 // Update document object of the frame. 63 void updateDocument(); 64 65 void namedItemAdded(HTMLDocument*, const AtomicString&); 66 void namedItemRemoved(HTMLDocument*, const AtomicString&); 67 68 // Update the security origin of a document 69 // (e.g., after setting docoument.domain). 70 void updateSecurityOrigin(); 71 isContextInitialized()72 bool isContextInitialized() { return m_contextHolder; } isGlobalInitialized()73 bool isGlobalInitialized() { return !m_global.isEmpty(); } 74 75 bool initializeIfNeeded(); 76 void updateDocumentWrapper(v8::Handle<v8::Object> wrapper); 77 78 void clearForNavigation(); 79 void clearForClose(bool destroyGlobal); 80 world()81 DOMWrapperWorld* world() { return m_world.get(); } 82 83 private: 84 V8WindowShell(Frame*, PassRefPtr<DOMWrapperWorld>, v8::Isolate*); 85 86 enum GlobalDetachmentBehavior { 87 DoNotDetachGlobal, 88 DetachGlobal 89 }; 90 void disposeContext(GlobalDetachmentBehavior); 91 92 void setSecurityToken(); 93 94 // The JavaScript wrapper for the document object is cached on the global 95 // object for fast access. UpdateDocumentProperty sets the wrapper 96 // for the current document on the global object. ClearDocumentProperty 97 // deletes the document wrapper from the global object. 98 void updateDocumentProperty(); 99 void clearDocumentProperty(); 100 101 void createContext(); 102 bool installDOMWindow(); 103 104 static V8WindowShell* enteredIsolatedWorldContext(); 105 106 Frame* m_frame; 107 RefPtr<DOMWrapperWorld> m_world; 108 v8::Isolate* m_isolate; 109 110 OwnPtr<V8PerContextData> m_perContextData; 111 112 OwnPtr<gin::ContextHolder> m_contextHolder; 113 ScopedPersistent<v8::Object> m_global; 114 ScopedPersistent<v8::Object> m_document; 115 }; 116 117 } // namespace WebCore 118 119 #endif // V8WindowShell_h 120