src/third_party/WebKit/Source/web/WebSocketChannelClientProxy.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WebSocketChannelClientProxy_h
   6 #define WebSocketChannelClientProxy_h
   7
   8 #include "modules/websockets/WebSocketChannelClient.h"
   9 #include "platform/heap/Handle.h"
  10 #include "web/WebSocketImpl.h"
  11 #include "wtf/PassOwnPtr.h"
  12 #include "wtf/Vector.h"
  13 #include "wtf/text/WTFString.h"
  14
  15 namespace blink {
  16
  17 // Ideally we want to simply make WebSocketImpl inherit from
  18 // WebSocketChannelClient, but we cannot do that because WebSocketChannelClient
  19 // needs to be on Oilpan's heap whereas WebSocketImpl cannot be on Oilpan's
  20 // heap. Thus we need to introduce a proxy class to decouple WebSocketImpl
  21 // from WebSocketChannelClient.
  22 class WebSocketChannelClientProxy FINAL : public GarbageCollectedFinalized<WebSocketChannelClientProxy>, public WebSocketChannelClient {
  23     USING_GARBAGE_COLLECTED_MIXIN(WebSocketChannelClientProxy)
  24 public:
  25     static WebSocketChannelClientProxy* create(WebSocketImpl* impl)
  26     {
  27         return new WebSocketChannelClientProxy(impl);
  28     }
  29
  30     virtual void didConnect(const String& subprotocol, const String& extensions) OVERRIDE
  31     {
  32         m_impl->didConnect(subprotocol, extensions);
  33     }
  34     virtual void didReceiveMessage(const String& message) OVERRIDE
  35     {
  36         m_impl->didReceiveMessage(message);
  37     }
  38     virtual void didReceiveBinaryData(PassOwnPtr<Vector<char> > binaryData) OVERRIDE
  39     {
  40         m_impl->didReceiveBinaryData(binaryData);
  41     }
  42     virtual void didReceiveMessageError() OVERRIDE
  43     {
  44         m_impl->didReceiveMessageError();
  45     }
  46     virtual void didConsumeBufferedAmount(unsigned long consumed) OVERRIDE
  47     {
  48         m_impl->didConsumeBufferedAmount(consumed);
  49     }
  50     virtual void didStartClosingHandshake() OVERRIDE
  51     {
  52         m_impl->didStartClosingHandshake();
  53     }
  54     virtual void didClose(ClosingHandshakeCompletionStatus status, unsigned short code, const String& reason) OVERRIDE
  55     {
  56         WebSocketImpl* impl = m_impl;
  57         m_impl = nullptr;
  58         impl->didClose(status, code, reason);
  59     }
  60
  61 private:
  62     explicit WebSocketChannelClientProxy(WebSocketImpl* impl)
  63         : m_impl(impl)
  64     {
  65     }
  66
  67     WebSocketImpl* m_impl;
  68 };
  69
  70 } // namespace blink
  71
  72 #endif // WebSocketChannelClientProxy_h