gecko-dev/uriloader/exthandler/nsIExternalProtocolService.idl
2004-10-29 16:48:38 +00:00

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/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** 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 the Mozilla browser.
*
* The Initial Developer of the Original Code is
* Netscape Communications, Inc.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Scott MacGregor <mscott@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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 "nsISupports.idl"
interface nsIURI;
interface nsIFile;
interface nsIPrompt;
/**
* The external protocol service is used for finding and launching
* platform specific applications for particular protocols.
*
* You can ask the external protocol service if it has an external
* handler for a given protocol scheme. And you can ask it to load
* the url using the default handler.
*/
[scriptable, uuid(a49813a4-98b7-4bdb-998c-8bd9704af0c0)]
interface nsIExternalProtocolService : nsISupports
{
/**
* Check whether a handler for a specific protocol exists.
* @param aProtocolScheme The scheme from a url: http, ftp, mailto, etc.
* @return true if we have a handler and false otherwise.
*/
boolean externalProtocolHandlerExists(in string aProtocolScheme);
/**
* Check whether a handler for a specific protocol is "exposed" as a visible
* feature of the current application.
*
* An exposed protocol handler is one that can be used in all contexts. A
* non-exposed protocol handler is one that can only be used internally by the
* application. For example, a non-exposed protocol would not be loaded by the
* application in response to a link click or a X-remote openURL command.
* Instead, it would be deferred to the system's external protocol handler.
*/
boolean isExposedProtocol(in string aProtocolScheme);
/**
* Used to load a url via an external protocol handler (if one exists)
* @param aURL The url to load
*/
void loadUrl (in nsIURI aURL);
/**
* Used to load a URI via an external application. Might prompt the user for
* permission to load the external application. Replaces loadUrl()
*
* @param aURI The URI to load
* @param aPrompt If null we grab one from windowwatcher if we need it
*/
void loadURI(in nsIURI aURI, in nsIPrompt aPrompt);
/**
* Gets a human-readable description for the application responsible for
* handling a specific protocol.
*
* @param aScheme The scheme to look up. For example, "mms".
*
* @throw NS_ERROR_NOT_IMPLEMENTED
* If getting descriptions for protocol helpers is not supported
* @throw NS_ERROR_NOT_AVAILABLE
* If no protocol helper exists for this scheme, or if it is not
* possible to get a description for it.
*/
AString getApplicationDescription(in AUTF8String aScheme);
};