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- /* -*- Mode: IDL; tab-width: 2; 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 Mozilla.org code.
- *
- * The Initial Developer of the Original Code is
- * Boris Zbarsky <bzbarsky@mit.edu>.
- * Portions created by the Initial Developer are Copyright (C) 2005
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either 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 nsIWebNavigation;
-
- /**
- * The nsIWebNavigationInfo interface exposes a way to get information
- * on the capabilities of Gecko webnavigation objects.
- *
- * @status UNDER_REVIEW
- */
- [scriptable, uuid(62a93afb-93a1-465c-84c8-0432264229de)]
- interface nsIWebNavigationInfo : nsISupports
- {
- /**
- * Returned by isTypeSupported to indicate lack of support for a type.
- * @note this is guaranteed not to change, so that boolean tests can be done
- * on the return value if isTypeSupported to detect whether a type is
- * supported at all.
- */
- const unsigned long UNSUPPORTED = 0;
-
- /**
- * Returned by isTypeSupported to indicate that a type is supported as an
- * image.
- */
- const unsigned long IMAGE = 1;
-
- /**
- * Returned by isTypeSupported to indicate that a type is supported via an
- * NPAPI ("Netscape 4 API") plug-in. This is not the value returned for
- * "XPCOM plug-ins".
- */
- const unsigned long PLUGIN = 2;
-
- /**
- * @note Other return types may be added here in the future as they become
- * relevant.
- */
-
- /**
- * Returned by isTypeSupported to indicate that a type is supported via some
- * other means.
- */
- const unsigned long OTHER = 1 << 15;
-
- /**
- * Query whether aType is supported.
- * @param aType the MIME type in question.
- * @param aWebNav the nsIWebNavigation object for which the request
- * is being made. This is allowed to be null. If it is non-null,
- * the return value of this method may depend on the exact state of
- * aWebNav and the values set through nsIWebBrowserSetup; otherwise
- * the method will assume that the caller is interested in information
- * about nsIWebNavigation objects in their default state.
- * @return an enum value indicating whether and how aType is supported.
- * @note This method may rescan plugins to ensure that they're properly
- * registered for the types they support.
- */
- unsigned long isTypeSupported(in ACString aType, in nsIWebNavigation aWebNav);
- };
-