gecko-dev/uriloader/exthandler/ExternalHelperAppChild.cpp

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4.0 KiB
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/****** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is IPC External Helper App module.
*
* The Initial Developer of the Original Code is
* Brian Crowder <crowderbt@gmail.com>.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "ExternalHelperAppChild.h"
#include "nsIInputStream.h"
#include "nsIRequest.h"
#include "nsIResumableChannel.h"
#include "nsNetUtil.h"
namespace mozilla {
namespace dom {
NS_IMPL_ISUPPORTS2(ExternalHelperAppChild,
nsIStreamListener,
nsIRequestObserver)
ExternalHelperAppChild::ExternalHelperAppChild()
: mStatus(NS_OK)
{
}
ExternalHelperAppChild::~ExternalHelperAppChild()
{
}
//-----------------------------------------------------------------------------
// nsIStreamListener
//-----------------------------------------------------------------------------
NS_IMETHODIMP
ExternalHelperAppChild::OnDataAvailable(nsIRequest *request,
nsISupports *ctx,
nsIInputStream *input,
PRUint32 offset,
PRUint32 count)
{
if (NS_FAILED(mStatus))
return mStatus;
nsCString data;
nsresult rv = NS_ReadInputStreamToString(input, data, count);
if (NS_FAILED(rv))
return rv;
if (!SendOnDataAvailable(data, offset, count))
return NS_ERROR_UNEXPECTED;
return NS_OK;
}
//////////////////////////////////////////////////////////////////////////////
// nsIRequestObserver
//////////////////////////////////////////////////////////////////////////////
NS_IMETHODIMP
ExternalHelperAppChild::OnStartRequest(nsIRequest *request, nsISupports *ctx)
{
nsresult rv = mHandler->OnStartRequest(request, ctx);
NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED);
nsCString entityID;
nsCOMPtr<nsIResumableChannel> resumable(do_QueryInterface(request));
if (resumable)
resumable->GetEntityID(entityID);
SendOnStartRequest(entityID);
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppChild::OnStopRequest(nsIRequest *request,
nsISupports *ctx,
nsresult status)
{
nsresult rv = mHandler->OnStopRequest(request, ctx, status);
SendOnStopRequest(status);
NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED);
return NS_OK;
}
bool
ExternalHelperAppChild::RecvCancel(const nsresult& aStatus)
{
mStatus = aStatus;
return true;
}
} // namespace dom
} // namespace mozilla