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1c29b0d28e
Create a new API (IHistory) to check for the visitedness of a URI. r=mak r=bz sr=bsmedberg
112 lines
4.0 KiB
C++
112 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=4 sw=4 et tw=80:
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Shawn Wilsher <me@shawnwilsher.com> (Original Author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef mozilla_IHistory_h_
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#define mozilla_IHistory_h_
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#include "nsISupports.h"
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class nsIURI;
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namespace mozilla {
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namespace dom {
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class Link;
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}
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#define IHISTORY_IID \
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{0xaf27265d, 0x5672, 0x4d23, {0xa0, 0x75, 0x34, 0x8e, 0xb9, 0x73, 0x5a, 0x9a}}
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class IHistory : public nsISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(IHISTORY_IID)
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/**
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* Registers the Link for notifications about the visited-ness of aURI.
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* Consumers should assume that the URI is unvisited after calling this, and
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* they will be notified if that state (unvisited) changes by having
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* SetLinkState called on themselves. This function is guaranteed to run to
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* completion before aLink is notified. After the node is notified, it will
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* be unregistered.
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*
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* @note SetLinkState must not call RegisterVisitedCallback or
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* UnregisterVisitedCallback.
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*
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* @pre aURI must not be null.
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* @pre aLink must not be null.
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*
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* @param aURI
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* The URI to check.
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* @param aLink
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* The link to update whenever the history status changes. The
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* implementation will only hold onto a raw pointer, so if this
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* object should be destroyed, be sure to call
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* UnregisterVistedCallback first.
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*/
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NS_IMETHOD RegisterVisitedCallback(nsIURI *aURI, dom::Link *aLink) = 0;
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/**
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* Unregisters a previously registered Link object. This must be called
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* before destroying the registered object.
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*
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* @pre aURI must not be null.
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* @pre aLink must not be null.
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*
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* @param aURI
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* The URI that aLink was registered for.
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* @param aLink
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* The link object to unregister for aURI.
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*/
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NS_IMETHOD UnregisterVisitedCallback(nsIURI *aURI, dom::Link *aLink) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(IHistory, IHISTORY_IID)
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#define NS_DECL_IHISTORY \
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NS_IMETHOD RegisterVisitedCallback(nsIURI *aURI, \
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mozilla::dom::Link *aContent); \
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NS_IMETHOD UnregisterVisitedCallback(nsIURI *aURI, \
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mozilla::dom::Link *aContent);
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} // namespace mozilla
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#endif // mozilla_IHistory_h_
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