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66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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_DECLARE_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 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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bool aNodeToKeepIsFirst)=0;
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static nsresult GetChildOffset(nsIDOMNode *aChild, nsIDOMNode *aParent, PRInt32 &aOffset);
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIEditorSupport, NS_IEDITORSUPPORT_IID)
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#endif //nsIEditorSupport_h__
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