1/*
2 * Copyright (C) 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2012 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
15 *     its contributors may be used to endorse or promote products derived
16 *     from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef InjectedScriptManager_h
31#define InjectedScriptManager_h
32
33#include "bindings/core/v8/ScriptState.h"
34#include "wtf/Forward.h"
35#include "wtf/HashMap.h"
36#include "wtf/text/WTFString.h"
37#include <v8.h>
38
39namespace blink {
40
41class LocalDOMWindow;
42class InjectedScript;
43class InjectedScriptHost;
44class ScriptValue;
45
46class InjectedScriptManager : public NoBaseWillBeGarbageCollectedFinalized<InjectedScriptManager> {
47    WTF_MAKE_NONCOPYABLE(InjectedScriptManager);
48    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
49public:
50    struct CallbackData {
51        ScopedPersistent<v8::Object> handle;
52#if ENABLE(OILPAN)
53        WrapperPersistent<InjectedScriptHost>* hostPtr;
54#else
55        RefPtr<InjectedScriptHost> host;
56#endif
57        InjectedScriptManager* injectedScriptManager;
58
59#if ENABLE(OILPAN)
60        CallbackData() : hostPtr(0) { }
61        ~CallbackData();
62#endif
63    };
64
65    static PassOwnPtrWillBeRawPtr<InjectedScriptManager> createForPage();
66    static PassOwnPtrWillBeRawPtr<InjectedScriptManager> createForWorker();
67    ~InjectedScriptManager();
68    void trace(Visitor*);
69
70    void disconnect();
71
72    InjectedScriptHost* injectedScriptHost();
73
74    InjectedScript injectedScriptFor(ScriptState*);
75    InjectedScript injectedScriptForId(int);
76    int injectedScriptIdFor(ScriptState*);
77    InjectedScript injectedScriptForObjectId(const String& objectId);
78    void discardInjectedScripts();
79    void discardInjectedScriptsFor(LocalDOMWindow*);
80    void releaseObjectGroup(const String& objectGroup);
81
82    typedef bool (*InspectedStateAccessCheck)(ScriptState*);
83    InspectedStateAccessCheck inspectedStateAccessCheck() const { return m_inspectedStateAccessCheck; }
84
85    static void setWeakCallback(const v8::WeakCallbackData<v8::Object, CallbackData>&);
86    CallbackData* createCallbackData(InjectedScriptManager*);
87    void removeCallbackData(CallbackData*);
88
89private:
90    explicit InjectedScriptManager(InspectedStateAccessCheck);
91
92    String injectedScriptSource();
93    ScriptValue createInjectedScript(const String& source, ScriptState*, int id);
94
95    static bool canAccessInspectedWindow(ScriptState*);
96    static bool canAccessInspectedWorkerGlobalScope(ScriptState*);
97
98    int m_nextInjectedScriptId;
99    typedef HashMap<int, InjectedScript> IdToInjectedScriptMap;
100    IdToInjectedScriptMap m_idToInjectedScript;
101    RefPtrWillBeMember<InjectedScriptHost> m_injectedScriptHost;
102    InspectedStateAccessCheck m_inspectedStateAccessCheck;
103    typedef HashMap<RefPtr<ScriptState>, int> ScriptStateToId;
104    ScriptStateToId m_scriptStateToId;
105    HashSet<OwnPtr<CallbackData> > m_callbackDataSet;
106};
107
108} // namespace blink
109
110#endif // !defined(InjectedScriptManager_h)
111