gecko-dev/extensions/venkman/resources/content/venkman-url-loader.js

104 строки
3.3 KiB
JavaScript

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 The JavaScript Debugger
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation
* Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* Contributor(s):
* Robert Ginda, <rginda@netscape.com>, original author
*
*/
const IOSERVICE_CTRID = "@mozilla.org/network/io-service;1";
const nsIIOService = Components.interfaces.nsIIOService;
const SIS_CTRID = "@mozilla.org/scriptableinputstream;1"
const nsIScriptableInputStream = Components.interfaces.nsIScriptableInputStream;
const nsIChannel = Components.interfaces.nsIChannel;
const nsIInputStream = Components.interfaces.nsIInputStream;
function _getChannelForURL (url)
{
var serv = Components.classes[IOSERVICE_CTRID].getService(nsIIOService);
if (!serv)
throw new BadMojo(ERR_FAILURE);
return serv.newChannel(url, null, null);
}
function loadURLNow (url)
{
var chan = _getChannelForURL (url);
var instream =
Components.classes[SIS_CTRID].createInstance(nsIScriptableInputStream);
instream.init (chan.open());
return instream.read (instream.available());
}
function loadURLAsync (url, observer)
{
var chan = _getChannelForURL (url);
return chan.asyncOpen (new StreamListener (url, observer), null);
}
function StreamListener(url, observer)
{
this.data = "";
this.url = url;
this.observer = observer;
}
StreamListener.prototype.onStartRequest =
function (request, data)
{
//dd ("onStartRequest()");
}
StreamListener.prototype.onStopRequest =
function (request, data, status)
{
//dd ("onStopRequest(): status: " + status + "\n" /* + this.data*/);
if (typeof this.observer.onComplete == "function")
this.observer.onComplete (this.data, this.url, status);
}
StreamListener.prototype.onDataAvailable =
function (request, data, inStr, sourceOffset, count)
{
/*dd ("onDataAvailable(): " + count);*/
if (!this._sis)
{
this._sis =
Components.classes[SIS_CTRID].createInstance(nsIScriptableInputStream);
this._sis.init(inStr);
}
this.data += this._sis.read(count);
}