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132 lines
4.8 KiB
Plaintext
132 lines
4.8 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 Bookmarks transaction code.
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*
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* The Initial Developer of the Original Code is
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* Joey Minta <jminta@gmail.com>
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*
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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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#include "nsISupports.idl"
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interface nsIRDFResource;
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interface nsIRDFNode;
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interface nsIRDFLiteral;
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interface nsITransactionManager;
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/**
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* nsIBookmarkTransactionService is a service designed to handle
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* nsITransactions that correspond to changes in bookmarks. It is here as a
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* service so that we can keep the transactions around without holding onto
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* the whole global js scope+window.
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*/
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[scriptable, uuid(f6305e79-1760-4991-ab4d-a42db60f0e67)]
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interface nsIBookmarkTransactionManager : nsISupports
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{
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/**
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* Performs a new transaction according to the specified parameters
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*
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* @param aType the type of transaction being performed. Must be one
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* of the three constants defined below
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* @param aAction the action to be performed. Expected values are:
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* import, insert, move, and remove (see bookmarks.js)
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* @param aItem the rdf node the transaction is being performed on
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* @param aIndex the index of the item in its RDF Container
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* @param aParent the rdf-parent of aItem, that is, the folder it
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* should be inserted into.
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* @param aRemovedProps properties removed from the item in question
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*
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*/
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void createAndCommitTxn(in unsigned long aType,
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in AString aAction,
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in nsIRDFNode aItem,
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in long aIndex,
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in nsIRDFResource aParent,
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in unsigned long aPropCount,
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[array, size_is(aPropCount)] in nsIRDFLiteral aRemovedProps);
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/**
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* Constants corresponding to the 3 different types of transactions possible
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* Note that moving bookmarks is a combination of REMOVE+INSERT
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*/
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const unsigned long IMPORT = 0;
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const unsigned long INSERT = 1;
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const unsigned long REMOVE = 2;
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/**
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* Signals the transaction manager that a series of transactions are going to
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* be performed, but that, for the purposes of undo and redo, they should all
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* be regarded as a single transaction. That is, a single undo() call will
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* undo all of the transactions created and committed between startBatch() and
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* endBatch(). See also nsITransactionManager::beginBatch
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*
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* @note if startBatch() is called multiple times. The batch will not end
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* endBatch() has been called the same number of times.
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*/
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void startBatch();
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/**
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* Ends the batch transaction in process, subject to the note above about
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* multiple, successive calls of startBatch(). See also
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* nsITransactionManager::endBatch
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*/
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void endBatch();
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/**
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* Undo the last transaction in the transaction manager's stack
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*/
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void undo();
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/**
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* Returns true if it is possible to undo a transaction at this time
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*/
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boolean canUndo();
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/**
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* Redo the last transaction
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*/
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void redo();
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/**
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* Returns true if it is possible to redo a transaction at this time
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*/
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boolean canRedo();
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/**
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* A reference to the transaction manager for bookmarks
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*/
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readonly attribute nsITransactionManager transactionManager;
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};
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