author aaronleventhal@moonset.net
Tue, 11 Dec 2007 18:10:26 -0800
changeset 8937 3c8e96943d126ef1893b2091ce622f530867f97e
parent 5833 a2f9af74fef2ffc04d69ab946db6a714073fe35f
child 11902 fceac97e2b4b4de189541be857504041e0965eb4
permissions -rw-r--r--
Bug 398910. Remove support for namespaced ARIA properties since they are no longer official (we are pre-1.0). r=surkov, r=ginn, r=bienvenu, r=mano, r=mconnor, r+sr=neil

/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * The contents of this file are subject to the Mozilla Public License Version
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 * The Original Code is the Mozilla browser.
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 *   Scott MacGregor <mscott@netscape.com>
 *   Myk Melez <myk@mozilla.org>
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#include "nsISupports.idl"

interface nsIURI;
interface nsIFile;
interface nsIInterfaceRequestor;
interface nsIHandlerInfo;

 * The external protocol service is used for finding and launching
 * web handlers (a la registerProtocolHandler in the HTML5 draft) or 
 * platform-specific applications for handling 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(7968ffa9-bb51-4b2d-aad2-8ea46c15d27f)]
interface nsIExternalProtocolService : nsISupports
   * Check whether a handler for a specific protocol exists.  Specifically,
   * this looks to see whether there are any known possible application handlers
   * in either the nsIHandlerService datastore or registered with the OS.
   * @param aProtocolScheme The scheme from a url: http, ftp, mailto, etc.
   * @return true if we have a handler and false otherwise.
   * XXX shouldn't aProtocolScheme be an ACString like nsIURI::scheme?
  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.
   * XXX shouldn't aProtocolScheme be an ACString like nsIURI::scheme?
  boolean isExposedProtocol(in string aProtocolScheme);

   * Retrieve the handler for the given protocol.  If neither the application
   * nor the OS knows about a handler for the protocol, the object this method
   * returns will represent a default handler for unknown content.
   * @param aProtocolScheme the scheme from a URL: http, ftp, mailto, etc.
   * Note: aProtocolScheme should not include a trailing colon, which is part
   * of the URI syntax, not part of the scheme itself (i.e. pass "mailto" not
   * "mailto:").
   * @return the handler, if any; otherwise a default handler
  nsIHandlerInfo getProtocolHandlerInfo(in ACString aProtocolScheme);

   * Used to load a url via an external protocol handler (if one exists)
   * @param aURL The url to load
   * @deprecated Use LoadURI instead (See Bug 389565 for removal)
   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.
   * @param aURI
   *        The URI to load
   * @param aWindowContext 
   *        The window to parent the dialog against, and, if a web handler
   *        is chosen, it is loaded in this window as well.  This parameter
   *        may be ultimately passed nsIURILoader.openURI in the case of a
   *        web handler, and aWindowContext is null or not present, web
   *        handlers will fail.  We need to do better than that; bug 394483
   *        filed in order to track.
   * @note  Embedders that do not expose the http protocol should not currently
   *        use web-based protocol handlers, as handoff won't work correctly
   *        (bug 394479).  
  void loadURI(in nsIURI aURI,
               [optional] in nsIInterfaceRequestor aWindowContext);

   * Gets a human-readable description for the application responsible for
   * handling a specific protocol.
   * @param aScheme The scheme to look up. For example, "mms".
   *        If getting descriptions for protocol helpers is not supported
   *        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);