WebKit2/UIProcess/WebProcessProxy.h

   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 WebProcessProxy_h
  27 #define WebProcessProxy_h
  28
  29 #include "Connection.h"
  30 #include "PlatformProcessIdentifier.h"
  31 #include "PluginInfoStore.h"
  32 #include "ProcessLauncher.h"
  33 #include "ProcessModel.h"
  34 #include "ResponsivenessTimer.h"
  35 #include "ThreadLauncher.h"
  36 #include "WebPageProxy.h"
  37 #include <WebCore/LinkHash.h>
  38 #include <wtf/Forward.h>
  39 #include <wtf/HashMap.h>
  40 #include <wtf/PassRefPtr.h>
  41 #include <wtf/RefCounted.h>
  42
  43 namespace WebCore {
  44     class KURL;
  45 };
  46
  47 namespace WebKit {
  48
  49 class WebBackForwardListItem;
  50 class WebContext;
  51 class WebPageGroup;
  52 struct WebNavigationDataStore;
  53
  54 class WebProcessProxy : public RefCounted<WebProcessProxy>, CoreIPC::Connection::Client, ResponsivenessTimer::Client, ProcessLauncher::Client, ThreadLauncher::Client {
  55 public:
  56     typedef HashMap<uint64_t, RefPtr<WebPageProxy> > WebPageProxyMap;
  57     typedef WebPageProxyMap::const_iterator::Values pages_const_iterator;
  58     typedef HashMap<uint64_t, RefPtr<WebBackForwardListItem> > WebBackForwardListItemMap;
  59
  60     static PassRefPtr<WebProcessProxy> create(WebContext*);
  61     ~WebProcessProxy();
  62
  63     void terminate();
  64
  65     template<typename E, typename T> bool send(E messageID, uint64_t destinationID, const T& arguments);
  66     template<typename T> bool send(const T& message, uint64_t destinationID);
  67     template<typename U> bool sendSync(const U& message, const typename U::Reply& reply, uint64_t destinationID, double timeout = 1);
  68
  69     CoreIPC::Connection* connection() const
  70     {
  71         ASSERT(m_connection);
  72
  73         return m_connection.get();
  74     }
  75
  76     WebContext* context() const { return m_context; }
  77
  78     PlatformProcessIdentifier processIdentifier() const { return m_processLauncher->processIdentifier(); }
  79
  80     WebPageProxy* webPage(uint64_t pageID) const;
  81     WebPageProxy* createWebPage(WebContext*, WebPageGroup*);
  82     void addExistingWebPage(WebPageProxy*, uint64_t pageID);
  83     void removeWebPage(uint64_t pageID);
  84
  85     pages_const_iterator pages_begin();
  86     pages_const_iterator pages_end();
  87     size_t numberOfPages();
  88
  89     WebBackForwardListItem* webBackForwardItem(uint64_t itemID) const;
  90
  91     ResponsivenessTimer* responsivenessTimer() { return &m_responsivenessTimer; }
  92
  93     bool isValid() const { return m_connection; }
  94     bool isLaunching() const;
  95     bool canSendMessage() const { return isValid() || isLaunching(); }
  96
  97     WebFrameProxy* webFrame(uint64_t) const;
  98     void frameCreated(uint64_t, WebFrameProxy*);
  99     void didDestroyFrame(uint64_t);
 100     void disconnectFramesFromPage(WebPageProxy*); // Including main frame.
 101     size_t frameCountInPage(WebPageProxy*) const; // Including main frame.
 102
 103 private:
 104     explicit WebProcessProxy(WebContext*);
 105
 106     void connect();
 107
 108     bool sendMessage(CoreIPC::MessageID, PassOwnPtr<CoreIPC::ArgumentEncoder>);
 109
 110     void addBackForwardItem(uint64_t itemID, const String& originalURLString, const String& urlString, const String& title);
 111
 112 #if ENABLE(PLUGIN_PROCESS)
 113     void getPluginProcessConnection(const String& pluginPath, CoreIPC::ArgumentEncoder* reply);
 114 #endif
 115
 116     // CoreIPC::Connection::Client
 117     void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
 118     CoreIPC::SyncReplyMode didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*);
 119     void didClose(CoreIPC::Connection*);
 120     void didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID);
 121
 122     // ResponsivenessTimer::Client
 123     void didBecomeUnresponsive(ResponsivenessTimer*);
 124     void didBecomeResponsive(ResponsivenessTimer*);
 125
 126     // ProcessLauncher::Client
 127     virtual void didFinishLaunching(ProcessLauncher*, CoreIPC::Connection::Identifier);
 128
 129     // ThreadLauncher::Client
 130     virtual void didFinishLaunching(ThreadLauncher*, CoreIPC::Connection::Identifier);
 131
 132     void didFinishLaunching(CoreIPC::Connection::Identifier);
 133
 134     // Implemented in generated WebProcessProxyMessageReceiver.cpp
 135     void didReceiveWebProcessProxyMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
 136
 137     ResponsivenessTimer m_responsivenessTimer;
 138     RefPtr<CoreIPC::Connection> m_connection;
 139
 140     Vector<CoreIPC::Connection::OutgoingMessage> m_pendingMessages;
 141     RefPtr<ProcessLauncher> m_processLauncher;
 142     RefPtr<ThreadLauncher> m_threadLauncher;
 143
 144     WebContext* m_context;
 145
 146     WebPageProxyMap m_pageMap;
 147     WebBackForwardListItemMap m_backForwardListItemMap;
 148
 149     HashMap<uint64_t, RefPtr<WebFrameProxy> > m_frameMap;
 150 };
 151
 152 template<typename E, typename T>
 153 bool WebProcessProxy::send(E messageID, uint64_t destinationID, const T& arguments)
 154 {
 155     OwnPtr<CoreIPC::ArgumentEncoder> argumentEncoder = CoreIPC::ArgumentEncoder::create(destinationID);
 156     argumentEncoder->encode(arguments);
 157
 158     return sendMessage(CoreIPC::MessageID(messageID), argumentEncoder.release());
 159 }
 160
 161 template<typename T>
 162 bool WebProcessProxy::send(const T& message, uint64_t destinationID)
 163 {
 164     OwnPtr<CoreIPC::ArgumentEncoder> argumentEncoder = CoreIPC::ArgumentEncoder::create(destinationID);
 165     argumentEncoder->encode(message);
 166
 167     return sendMessage(CoreIPC::MessageID(T::messageID), argumentEncoder.release());
 168 }
 169
 170 template<typename U>
 171 bool WebProcessProxy::sendSync(const U& message, const typename U::Reply& reply, uint64_t destinationID, double timeout)
 172 {
 173     return m_connection->sendSync(message, reply, destinationID, timeout);
 174 }
 175
 176 } // namespace WebKit
 177
 178 #endif // WebProcessProxy_h