1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 2001
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Darin Fisher <darin@netscape.com> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
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32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
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36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #include "nsSimpleStreamListener.h"
40 :
41 : //
42 : //----------------------------------------------------------------------------
43 : // nsISupports implementation...
44 : //----------------------------------------------------------------------------
45 : //
46 100759 : NS_IMPL_ISUPPORTS3(nsSimpleStreamListener,
47 : nsISimpleStreamListener,
48 : nsIStreamListener,
49 : nsIRequestObserver)
50 :
51 : //
52 : //----------------------------------------------------------------------------
53 : // nsIRequestObserver implementation...
54 : //----------------------------------------------------------------------------
55 : //
56 : NS_IMETHODIMP
57 5752 : nsSimpleStreamListener::OnStartRequest(nsIRequest *aRequest,
58 : nsISupports *aContext)
59 : {
60 : return mObserver ?
61 5752 : mObserver->OnStartRequest(aRequest, aContext) : NS_OK;
62 : }
63 :
64 : NS_IMETHODIMP
65 5752 : nsSimpleStreamListener::OnStopRequest(nsIRequest* request,
66 : nsISupports *aContext,
67 : nsresult aStatus)
68 : {
69 : return mObserver ?
70 5752 : mObserver->OnStopRequest(request, aContext, aStatus) : NS_OK;
71 : }
72 :
73 : //
74 : //----------------------------------------------------------------------------
75 : // nsIStreamListener implementation...
76 : //----------------------------------------------------------------------------
77 : //
78 : NS_IMETHODIMP
79 33329 : nsSimpleStreamListener::OnDataAvailable(nsIRequest* request,
80 : nsISupports *aContext,
81 : nsIInputStream *aSource,
82 : PRUint32 aOffset,
83 : PRUint32 aCount)
84 : {
85 : PRUint32 writeCount;
86 33329 : nsresult rv = mSink->WriteFrom(aSource, aCount, &writeCount);
87 : //
88 : // Equate zero bytes read and NS_SUCCEEDED to stopping the read.
89 : //
90 33329 : if (NS_SUCCEEDED(rv) && (writeCount == 0))
91 0 : return NS_BASE_STREAM_CLOSED;
92 33329 : return rv;
93 : }
94 :
95 : //
96 : //----------------------------------------------------------------------------
97 : // nsISimpleStreamListener implementation...
98 : //----------------------------------------------------------------------------
99 : //
100 : NS_IMETHODIMP
101 5752 : nsSimpleStreamListener::Init(nsIOutputStream *aSink,
102 : nsIRequestObserver *aObserver)
103 : {
104 5752 : NS_PRECONDITION(aSink, "null output stream");
105 :
106 5752 : mSink = aSink;
107 5752 : mObserver = aObserver;
108 :
109 5752 : return NS_OK;
110 : }
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