pjs/uriloader/exthandler/nsIExternalHelperAppService...

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/* -*- Mode: C++; tab-width: 3; 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):
* Scott MacGregor <mscott@netscape.com>
*/
/* The external helper app service is used for finding and launching
platform specific external applications for a given mime content type.
*/
#include "nsISupports.idl"
interface nsIURI;
interface nsIStreamListener;
interface nsIFile;
interface nsIMIMEInfo;
[scriptable, uuid(663CC0AA-42EA-11d4-98D0-001083010E9B)]
interface nsIExternalHelperAppService : nsISupports
{
// canHandleContent: determines if we have an external helper application for a given mime type
// aMimeContentType --> the specified mime type we are attempting to get a helper application for
// aUri --> the url for the data we are trying to load. The implementor may need this in order to figure
// out the file extension of the document.
// returns TRUE if we have such an app and FALSE otherwise.
boolean canHandleContent (in string aMimeContentType, in nsIURI aUri);
// doContent: binds an external helper application to a stream listener. The caller should pump data
// into the returned stream listener. When the OnStopRequest is issued, the stream listener implementation
// will launch the helper app with this data.
// aMimeContentType --> the content type of the incoming data
// aURI --> the URI corresponding to the incoming data
// aWindowContext --> use GetInterface to retrieve properties like the dom window or parent window...
// the service might need this in order to bring up dialogs.
// aAbortProcess --> set to TRUE by the helper service if the caller should just forget about loading the document
// (typically this occurs if the helper app just wants the URI to run and not the data)
// returns a nsIStreamListener which the caller should pump the data into.
nsIStreamListener doContent (in string aMimeContentType, in nsIURI aURI,
in nsISupports aWindowContext, out boolean aAbortProcess);
};
// this is a private interface shared between external app handlers and the platform specific
// external helper app service
[scriptable, uuid(491D04D5-449C-11d4-98D0-001083010E9B)]
interface nsPIExternalAppLauncher : nsISupports
{
// launchAppWithTempFile --> used by the handler to actually launch the helper application
// aTempFile --> the file which contains the data we want the helper app to use when it is launched
void launchAppWithTempFile(in nsIMIMEInfo aMIMEInfo, in nsIFile aTempFile);
};
// a helper app launcher is a small object created to handle the launching of an external application.
[scriptable, uuid(9503D0FE-4C9D-11d4-98D0-001083010E9B)]
interface nsIHelperAppLauncher : nsISupports
{
// the mime info object associated with the content type this helper app launcher is currently
// attempting to load
readonly attribute nsIMIMEInfo MIMEInfo;
// saveToDisk: called when we want to just save the content to a particular file
// aNewFileLocation --> location where the content should be saved
void saveToDisk(in nsIFile aNewFileLocation, in boolean aRememberThisPreference);
// launchWithApplication: use aApplication to launch with this content
// aApplication --> nsIFile corresponding to the location of the application to use
// aRememberThisPreference --> TRUE if we should remember this choice.
void launchWithApplication(in nsIFile aApplication, in boolean aRememberThisPreference);
// called if the user decides to cancel the handling of this content type
void Cancel();
};