1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef NETWERK_SCTP_DATACHANNEL_DATACHANNELLISTENER_H_ 8 #define NETWERK_SCTP_DATACHANNEL_DATACHANNELLISTENER_H_ 9 10 #include "nsISupports.h" 11 #include "nsString.h" 12 13 namespace mozilla { 14 15 // Implemented by consumers of a Channel to receive messages. 16 // Can't nest it in DataChannelConnection because C++ doesn't allow forward 17 // refs to embedded classes 18 class DataChannelListener { 19 public: 20 virtual ~DataChannelListener() = default; 21 22 // Called when a DOMString message is received. 23 virtual nsresult OnMessageAvailable(nsISupports* aContext, 24 const nsACString& message) = 0; 25 26 // Called when a binary message is received. 27 virtual nsresult OnBinaryMessageAvailable(nsISupports* aContext, 28 const nsACString& message) = 0; 29 30 // Called when the channel is connected 31 virtual nsresult OnChannelConnected(nsISupports* aContext) = 0; 32 33 // Called when the channel is closed 34 virtual nsresult OnChannelClosed(nsISupports* aContext) = 0; 35 36 // Called when the BufferedAmount drops below the BufferedAmountLowThreshold 37 virtual nsresult OnBufferLow(nsISupports* aContext) = 0; 38 39 // Called when the BufferedAmount drops to 0 40 virtual nsresult NotBuffered(nsISupports* aContext) = 0; 41 }; 42 43 } // namespace mozilla 44 45 #endif 46