1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "V8IsolatedWorld.h"
#include <v8.h>
#include "Frame.h"
#include "FrameLoaderClient.h"
#include "HashMap.h"
#include "ScriptController.h"
#include "V8DOMWindow.h"
#include "V8HiddenPropertyName.h"
namespace WebCore {
int V8IsolatedWorld::isolatedWorldCount = 0;
void V8IsolatedWorld::contextWeakReferenceCallback(v8::Persistent<v8::Value> object, void* isolated_world)
{
// Our context is going away. Time to clean up the world.
V8IsolatedWorld* world = static_cast<V8IsolatedWorld*>(isolated_world);
delete world;
}
V8IsolatedWorld::V8IsolatedWorld(V8Proxy* proxy, int extensionGroup)
{
++isolatedWorldCount;
v8::HandleScope scope;
m_context = SharedPersistent<v8::Context>::create(proxy->createNewContext(v8::Handle<v8::Object>(), extensionGroup));
// Run code in the new context.
v8::Context::Scope context_scope(m_context->get());
m_context->get()->Global()->SetHiddenValue(V8HiddenPropertyName::isolatedWorld(), v8::External::Wrap(this));
V8Proxy::installHiddenObjectPrototype(m_context->get());
proxy->installDOMWindow(m_context->get(), proxy->frame()->domWindow());
// Using the default security token means that the canAccess is always
// called, which is slow.
// FIXME: Use tokens where possible. This will mean keeping track of all
// created contexts so that they can all be updated when the
// document domain
// changes.
m_context->get()->UseDefaultSecurityToken();
proxy->frame()->loader()->client()->didCreateIsolatedScriptContext();
}
void V8IsolatedWorld::destroy()
{
m_context->get().MakeWeak(this, &contextWeakReferenceCallback);
}
V8IsolatedWorld::~V8IsolatedWorld()
{
--isolatedWorldCount;
m_context->disposeHandle();
}
V8IsolatedWorld* V8IsolatedWorld::getEnteredImpl()
{
if (!v8::Context::InContext())
return 0;
v8::HandleScope scope;
v8::Local<v8::Value> world = v8::Context::GetEntered()->Global()->GetHiddenValue(V8HiddenPropertyName::isolatedWorld());
if (world.IsEmpty())
return 0;
return static_cast<V8IsolatedWorld*>(v8::External::Unwrap(world));
}
} // namespace WebCore
|
