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