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
contextWeakReferenceCallback(v8::Persistent<v8::Value> object,void * isolatedContext)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
V8IsolatedContext(V8Proxy * proxy,int extensionGroup)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
destroy()81 void V8IsolatedContext::destroy()
82 {
83 m_context->get().MakeWeak(this, &contextWeakReferenceCallback);
84 }
85
~V8IsolatedContext()86 V8IsolatedContext::~V8IsolatedContext()
87 {
88 m_context->disposeHandle();
89 }
90
91 } // namespace WebCore
92