1/*
2 * Copyright (C) 2010 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "InjectedBundleScriptWorld.h"
28
29#include <WebCore/DOMWrapperWorld.h>
30#include <WebCore/ScriptController.h>
31#include <wtf/HashMap.h>
32#include <wtf/NeverDestroyed.h>
33
34using namespace WebCore;
35
36namespace WebKit {
37
38typedef HashMap<DOMWrapperWorld*, InjectedBundleScriptWorld*> WorldMap;
39
40static WorldMap& allWorlds()
41{
42    static NeverDestroyed<WorldMap> map;
43    return map;
44}
45
46PassRefPtr<InjectedBundleScriptWorld> InjectedBundleScriptWorld::create()
47{
48    return adoptRef(new InjectedBundleScriptWorld(ScriptController::createWorld()));
49}
50
51PassRefPtr<InjectedBundleScriptWorld> InjectedBundleScriptWorld::getOrCreate(DOMWrapperWorld& world)
52{
53    if (&world == &mainThreadNormalWorld())
54        return normalWorld();
55
56    if (InjectedBundleScriptWorld* existingWorld = allWorlds().get(&world))
57        return existingWorld;
58
59    return adoptRef(new InjectedBundleScriptWorld(&world));
60}
61
62InjectedBundleScriptWorld* InjectedBundleScriptWorld::normalWorld()
63{
64    static InjectedBundleScriptWorld* world = adoptRef(new InjectedBundleScriptWorld(&mainThreadNormalWorld())).leakRef();
65    return world;
66}
67
68InjectedBundleScriptWorld::InjectedBundleScriptWorld(PassRefPtr<DOMWrapperWorld> world)
69    : m_world(world)
70{
71    ASSERT(!allWorlds().contains(m_world.get()));
72    allWorlds().add(m_world.get(), this);
73}
74
75InjectedBundleScriptWorld::~InjectedBundleScriptWorld()
76{
77    ASSERT(allWorlds().contains(m_world.get()));
78    allWorlds().remove(m_world.get());
79}
80
81DOMWrapperWorld& InjectedBundleScriptWorld::coreWorld() const
82{
83    return *m_world.get();
84}
85
86void InjectedBundleScriptWorld::clearWrappers()
87{
88    m_world->clearWrappers();
89}
90
91} // namespace WebKit
92