gecko-dev/uriloader/base/nsIWebProgressListener.idl

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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Contributor(s):
* Travis Bogard <travis@netscape.com>
*/
#include "nsISupports.idl"
/**
* The nsIWebProgressListener interface is implemented by clients wishing to
* listen in on the progress associated with the loading of documents.
*/
interface nsIRequest;
interface nsIWebProgress;
interface nsIChannel;
interface nsIURI;
[scriptable, uuid(570F39D1-EFD0-11d3-B093-00A024FFC08C)]
interface nsIWebProgressListener : nsISupports
{
/**
* Progress state transition bits.
* These flags indicate the various states that documents and requests
* may transition through as they are being loaded.
*/
const unsigned long STATE_START = 0x00000001;
const unsigned long STATE_REDIRECTING = 0x00000002;
const unsigned long STATE_TRANSFERRING = 0x00000004;
const unsigned long STATE_NEGOTIATING = 0x00000008;
const unsigned long STATE_STOP = 0x00000010;
/**
* Progress type bits.
* These flags indicate whether the transition is occuring on a document
* or an individual request within the document.
*/
const unsigned long STATE_IS_REQUEST = 0x00010000;
const unsigned long STATE_IS_DOCUMENT = 0x00020000;
const unsigned long STATE_IS_NETWORK = 0x00040000;
const unsigned long STATE_IS_WINDOW = 0x00080000;
/**
* Notification indicating the state has changed for one of the requests
* associated with the document loaded.
*
* @param aWebProgress The nsIWebProgress instance that fired the
* notification
*
* @param aRequest The nsIRequest which has changed state.
*
* @param aStateFlags Flags indicating the state change.
*
* @param aStatus Status code for the state change.
*/
void onStateChange(in nsIWebProgress aWebProgress,
in nsIRequest aRequest,
in long aStateFlags, // XXX TODO unsigned long
in unsigned long aStatus);
/**
* Notification that the progress has changed for one of the requests being
* monitored.
*
* @param aWebProgress The nsIWebProgress instance that fired the
* notification
*
* @param aRequest The nsIRequest that has new progress.
*
* @param aCurSelfProgress The current progress for aRequest.
*
* @param aMaxSelfProgress The maximum progress for aRequest. If this
* value is not known then -1 is passed.
*
* @param aCurTotalProgress The current progress for all the requests
* being monitored.
*
* @param aMaxTotalProgress The total progress for all the requests being
* monitored. If this value is not known then
* -1 is passed.
*/
void onProgressChange(in nsIWebProgress aWebProgress,
in nsIRequest aRequest,
in long aCurSelfProgress,
in long aMaxSelfProgress,
in long aCurTotalProgress,
in long aMaxTotalProgress);
/*
Called when the window being watched changes the location that is currently.
This is not when a load is requested, but rather once it is verified that
the load is going to occur in the given window. For instance, a load that
starts in a window might send progress and status messages, for the new site
but it will not send the onLocationChange until we are sure we are loading
this new page here.
@param location - The URI of the location that is being loaded.
*/
void onLocationChange(in nsIWebProgress aWebProgress,
in nsIRequest aRequest,
in nsIURI location);
/**
* Notification that the status has changed. The status message is usually
* printed in the status bar of the browser.
*/
void onStatusChange(in nsIWebProgress aWebProgress,
in nsIRequest aRequest,
in nsresult aStatus,
in wstring aMessage);
};