home *** CD-ROM | disk | FTP | other *** search
- /* -*- Mode: C++; 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
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * L. David Baron <dbaron@dbaron.org>
- *
- * 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 ***** */
- #ifndef nsILink_h___
- #define nsILink_h___
-
- #include "nsISupports.h"
- #include "nsILinkHandler.h" // definition of nsLinkState
-
- class nsIURI;
-
- // IID for the nsILink interface
- #define NS_ILINK_IID \
- { 0x0c212bc4, 0xfcd7, 0x479d, \
- { 0x8c, 0x3f, 0x3b, 0xe8, 0xe6, 0x78, 0x74, 0x50 } }
-
- /**
- * This interface allows SelectorMatches to get the canonical
- * URL pointed to by an element representing a link and allows
- * it to store the visited state of a link element in the link.
- * It is needed for performance reasons (to prevent copying of
- * strings and excessive calls to history).
- */
- class nsILink : public nsISupports {
- public:
- NS_DEFINE_STATIC_IID_ACCESSOR(NS_ILINK_IID)
-
- /**
- * Get the cached state of the link. If the state is unknown,
- * return eLinkState_Unknown.
- *
- * @param aState [out] The cached link state of the link.
- * @return NS_OK
- */
- NS_IMETHOD GetLinkState(nsLinkState &aState) = 0;
-
- /**
- * Set the cached state of the link.
- *
- * @param aState The cached link state of the link.
- * @return NS_OK
- */
- NS_IMETHOD SetLinkState(nsLinkState aState) = 0;
-
- /**
- * Get a pointer to the fully href URI (fully resolved and canonicalized,
- * since it's an nsIURI object).
- *
- * @param aURI [out] A pointer to be filled in with a pointer to the URI
- * If the element has no HREF attribute, it is set to nsnull.
- * @return NS_OK if the out pointer is filled in (possibly with nsnull)
- */
- NS_IMETHOD GetHrefURI(nsIURI** aURI) = 0;
-
- /**
- * Dispatch a LinkAdded event to the nsIChromeEventHandler for this document.
- * This is used to notify the chrome listeners when restoring a page
- * presentation. Currently, this only applies to HTML <link> elements.
- */
- NS_IMETHOD LinkAdded() = 0;
-
- /**
- * Dispatch a LinkRemoved event to the nsIChromeEventHandler for this
- * document. This is used to notify the chrome listeners when saving a page
- * presentation (since the document is not torn down). Currently, this only
- * applies to HTML <link> elements.
- */
- NS_IMETHOD LinkRemoved() = 0;
- };
-
- #endif /* nsILink_h___ */
-