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96 lines
3.8 KiB
C++
96 lines
3.8 KiB
C++
/* -*- Mode: C++; 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 mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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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 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 nsIEditorSupport_h__
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#define nsIEditorSupport_h__
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#include "nsISupports.h"
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class nsIDOMNode;
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/*
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Private Editor interface for a class that can provide helper functions
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*/
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#define NS_IEDITORSUPPORT_IID \
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{/* 89b999b0-c529-11d2-86da-000064657374*/ \
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0x89b999b0, 0xc529, 0x11d2, \
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{0x86, 0xda, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
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/**
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*/
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class nsIEditorSupport : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IEDITORSUPPORT_IID)
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/**
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* SplitNode() creates a new node identical to an existing node, and split the contents between the two nodes
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* @param aExistingRightNode the node to split. It will become the new node's next sibling.
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* @param aOffset the offset of aExistingRightNode's content|children to do the split at
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* @param aNewLeftNode [OUT] the new node resulting from the split, becomes aExistingRightNode's previous sibling.
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* @param aParent the parent of aExistingRightNode
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*/
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NS_IMETHOD SplitNodeImpl(nsIDOMNode * aExistingRightNode,
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PRInt32 aOffset,
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nsIDOMNode * aNewLeftNode,
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nsIDOMNode * aParent)=0;
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/**
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* JoinNodes() takes 2 nodes and merge their content|children.
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* @param aNodeToKeep The node that will remain after the join.
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* @param aNodeToJoin The node that will be joined with aNodeToKeep.
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* There is no requirement that the two nodes be of the same type.
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* @param aParent The parent of aExistingRightNode
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* @param aNodeToKeepIsFirst if PR_TRUE, the contents|children of aNodeToKeep come before the
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* contents|children of aNodeToJoin, otherwise their positions are switched.
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*/
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NS_IMETHOD JoinNodesImpl(nsIDOMNode *aNodeToKeep,
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nsIDOMNode *aNodeToJoin,
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nsIDOMNode *aParent,
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PRBool aNodeToKeepIsFirst)=0;
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static nsresult GetChildOffset(nsIDOMNode *aChild, nsIDOMNode *aParent, PRInt32 &aOffset);
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};
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#endif //nsIEditorSupport_h__
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