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 #include "config.h" 32 33 #include "V8IsolatedContext.h" 34 35 #include "Frame.h" 36 #include "FrameLoaderClient.h" 37 #include "HashMap.h" 38 #include "ScriptController.h" 39 #include "V8DOMWindow.h" 40 #include "V8HiddenPropertyName.h" 41 #include <v8.h> 42 43 namespace WebCore { 44 45 46 void V8IsolatedContext::contextWeakReferenceCallback(v8::Persistent<v8::Value> object, void* isolatedContext) 47 { 48 // Our context is going away. Time to clean up the world. 49 V8IsolatedContext* context = static_cast<V8IsolatedContext*>(isolatedContext); 50 delete context; 51 } 52 53 V8IsolatedContext::V8IsolatedContext(V8Proxy* proxy, int extensionGroup) 54 : m_world(IsolatedWorld::create()) 55 { 56 v8::HandleScope scope; 57 // FIXME: We should be creating a new V8DOMWindowShell here instead of riping out the context. 58 m_context = SharedPersistent<v8::Context>::create(proxy->windowShell()->createNewContext(v8::Handle<v8::Object>(), extensionGroup)); 59 if (m_context->get().IsEmpty()) 60 return; 61 62 // Run code in the new context. 63 v8::Context::Scope contextScope(m_context->get()); 64 65 getGlobalObject(m_context->get())->SetPointerInInternalField(V8DOMWindow::enteredIsolatedWorldIndex, this); 66 67 V8DOMWindowShell::installHiddenObjectPrototype(m_context->get()); 68 // FIXME: This will go away once we have a windowShell for the isolated world. 69 proxy->windowShell()->installDOMWindow(m_context->get(), proxy->frame()->domWindow()); 70 71 // Using the default security token means that the canAccess is always 72 // called, which is slow. 73 // FIXME: Use tokens where possible. This will mean keeping track of all 74 // created contexts so that they can all be updated when the 75 // document domain 76 // changes. 77 m_context->get()->UseDefaultSecurityToken(); 78 79 proxy->frame()->loader()->client()->didCreateIsolatedScriptContext(); 80 } 81 82 void V8IsolatedContext::destroy() 83 { 84 m_context->get().MakeWeak(this, &contextWeakReferenceCallback); 85 } 86 87 V8IsolatedContext::~V8IsolatedContext() 88 { 89 m_context->disposeHandle(); 90 } 91 92 } // namespace WebCore 93
