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 WebProcessConnection_h
27#define WebProcessConnection_h
28
29#if ENABLE(PLUGIN_PROCESS)
30
31#include "Connection.h"
32#include "Plugin.h"
33#include "WebProcessConnectionMessages.h"
34#include <wtf/HashSet.h>
35#include <wtf/RefCounted.h>
36
37namespace WebKit {
38
39class NPRemoteObjectMap;
40class PluginControllerProxy;
41struct PluginCreationParameters;
42
43// A connection from a plug-in process to a web process.
44
45class WebProcessConnection : public RefCounted<WebProcessConnection>, CoreIPC::Connection::Client {
46public:
47    static PassRefPtr<WebProcessConnection> create(CoreIPC::Connection::Identifier);
48    virtual ~WebProcessConnection();
49
50    CoreIPC::Connection* connection() const { return m_connection.get(); }
51    NPRemoteObjectMap* npRemoteObjectMap() const { return m_npRemoteObjectMap.get(); }
52
53    void removePluginControllerProxy(PluginControllerProxy*, Plugin*);
54
55    static void setGlobalException(const String&);
56
57private:
58    WebProcessConnection(CoreIPC::Connection::Identifier);
59
60    void addPluginControllerProxy(PassOwnPtr<PluginControllerProxy>);
61
62    void destroyPluginControllerProxy(PluginControllerProxy*);
63
64    // CoreIPC::Connection::Client
65    virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&) OVERRIDE;
66    virtual void didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&, OwnPtr<CoreIPC::MessageEncoder>&) OVERRIDE;
67    virtual void didClose(CoreIPC::Connection*);
68    virtual void didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::StringReference messageReceiverName, CoreIPC::StringReference messageName);
69
70    // Message handlers.
71    void didReceiveWebProcessConnectionMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&);
72    void didReceiveSyncWebProcessConnectionMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&, OwnPtr<CoreIPC::MessageEncoder>&);
73    void createPlugin(const PluginCreationParameters&, PassRefPtr<Messages::WebProcessConnection::CreatePlugin::DelayedReply>);
74    void createPluginAsynchronously(const PluginCreationParameters&);
75    void destroyPlugin(uint64_t pluginInstanceID, bool asynchronousCreationIncomplete);
76
77    void createPluginInternal(const PluginCreationParameters&, bool& result, bool& wantsWheelEvents, uint32_t& remoteLayerClientID);
78
79    RefPtr<CoreIPC::Connection> m_connection;
80
81    HashMap<uint64_t, OwnPtr<PluginControllerProxy>> m_pluginControllers;
82    RefPtr<NPRemoteObjectMap> m_npRemoteObjectMap;
83    HashSet<uint64_t> m_asynchronousInstanceIDsToIgnore;
84};
85
86} // namespace WebKit
87
88#endif // ENABLE(PLUGIN_PROCESS)
89
90
91#endif // WebProcessConnection_h
92