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#ifndef NPRemoteObjectMap_h
27#define NPRemoteObjectMap_h
28
29#if ENABLE(NETSCAPE_PLUGIN_API)
30
31#include "Connection.h"
32#include <WebCore/npruntime.h>
33#include <wtf/HashMap.h>
34#include <wtf/HashSet.h>
35#include <wtf/RefCounted.h>
36
37namespace WebKit {
38
39class NPObjectMessageReceiver;
40class NPObjectProxy;
41class NPVariantData;
42class Plugin;
43
44class NPRemoteObjectMap : public RefCounted<NPRemoteObjectMap> {
45public:
46    static PassRefPtr<NPRemoteObjectMap> create(IPC::Connection*);
47    ~NPRemoteObjectMap();
48
49    // Creates an NPObjectProxy wrapper for the remote object with the given remote object ID.
50    NPObject* createNPObjectProxy(uint64_t remoteObjectID, Plugin*);
51    void npObjectProxyDestroyed(NPObject*);
52
53    // Expose the given NPObject as a remote object. Returns the objectID.
54    uint64_t registerNPObject(NPObject*, Plugin*);
55    void unregisterNPObject(uint64_t);
56
57    NPVariantData npVariantToNPVariantData(const NPVariant&, Plugin*);
58    NPVariant npVariantDataToNPVariant(const NPVariantData&, Plugin*);
59
60    IPC::Connection* connection() const { return m_connection; }
61
62    void pluginDestroyed(Plugin*);
63
64    void didReceiveSyncMessage(IPC::Connection*, IPC::MessageDecoder&, std::unique_ptr<IPC::MessageEncoder>&);
65
66private:
67    explicit NPRemoteObjectMap(IPC::Connection*);
68    IPC::Connection* m_connection;
69
70    // A map of NPObjectMessageReceiver classes, wrapping objects that we export to the
71    // other end of the connection.
72    HashMap<uint64_t, NPObjectMessageReceiver*> m_registeredNPObjects;
73
74    // A set of NPObjectProxy objects associated with this map.
75    HashSet<NPObjectProxy*> m_npObjectProxies;
76};
77
78} // namespace WebKit
79
80#endif // ENABLE(NETSCAPE_PLUGIN_API)
81
82#endif // NPRemoteObjectMap_h
83