mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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141 lines
4.4 KiB
C++
141 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsStreamLoader.h"
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#include "nsIInputStream.h"
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#include "nsIChannel.h"
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NS_IMETHODIMP
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nsStreamLoader::Init(nsIStreamLoaderObserver* observer)
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{
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NS_ENSURE_ARG_POINTER(observer);
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mObserver = observer;
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return NS_OK;
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}
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NS_METHOD
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nsStreamLoader::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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if (aOuter) return NS_ERROR_NO_AGGREGATION;
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nsStreamLoader* it = new nsStreamLoader();
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if (it == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(it);
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nsresult rv = it->QueryInterface(aIID, aResult);
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NS_RELEASE(it);
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return rv;
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}
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NS_IMPL_ISUPPORTS3(nsStreamLoader, nsIStreamLoader,
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nsIRequestObserver, nsIStreamListener)
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NS_IMETHODIMP
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nsStreamLoader::GetNumBytesRead(PRUint32* aNumBytes)
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{
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*aNumBytes = mData.Length();
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return NS_OK;
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}
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/* readonly attribute nsIRequest request; */
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NS_IMETHODIMP
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nsStreamLoader::GetRequest(nsIRequest **aRequest)
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{
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NS_IF_ADDREF(*aRequest = mRequest);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamLoader::OnStartRequest(nsIRequest* request, nsISupports *ctxt)
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{
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nsCOMPtr<nsIChannel> chan( do_QueryInterface(request) );
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if (chan) {
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PRInt32 contentLength = -1;
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chan->GetContentLength(&contentLength);
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if (contentLength >= 0) {
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// preallocate buffer
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mData.SetCapacity(contentLength + 1);
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}
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}
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mContext = ctxt;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamLoader::OnStopRequest(nsIRequest* request, nsISupports *ctxt,
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nsresult aStatus)
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{
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if (mObserver) {
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// provide nsIStreamLoader::request during call to OnStreamComplete
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mRequest = request;
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mObserver->OnStreamComplete(this, mContext, aStatus,
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mData.Length(),
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reinterpret_cast<const PRUint8*>
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(mData.get()));
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// done.. cleanup
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mRequest = 0;
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mObserver = 0;
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mContext = 0;
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}
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return NS_OK;
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}
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NS_METHOD
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nsStreamLoader::WriteSegmentFun(nsIInputStream *inStr,
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void *closure,
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const char *fromSegment,
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PRUint32 toOffset,
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PRUint32 count,
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PRUint32 *writeCount)
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{
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nsStreamLoader *self = (nsStreamLoader *) closure;
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self->mData.Append(fromSegment, count);
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*writeCount = count;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStreamLoader::OnDataAvailable(nsIRequest* request, nsISupports *ctxt,
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nsIInputStream *inStr,
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PRUint32 sourceOffset, PRUint32 count)
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{
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PRUint32 countRead;
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return inStr->ReadSegments(WriteSegmentFun, this, count, &countRead);
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}
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