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72 lines
2.0 KiB
C++
72 lines
2.0 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 CreateElementTxn_h__
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#define CreateElementTxn_h__
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#include "EditTxn.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIDOMNode.h"
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#include "nsISupportsImpl.h"
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#include "nsString.h"
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#include "nscore.h"
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class nsEditor;
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/**
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* A transaction that creates a new node in the content tree.
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*/
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class CreateElementTxn : public EditTxn
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{
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public:
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enum { eAppend=-1 };
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/** Initialize the transaction.
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* @param aEditor the provider of basic editing functionality
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* @param aTag the tag (P, HR, TABLE, etc.) for the new element
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* @param aParent the node into which the new element will be inserted
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* @param aOffsetInParent the location in aParent to insert the new element
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* if eAppend, the new element is appended as the last child
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*/
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NS_IMETHOD Init(nsEditor *aEditor,
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const nsAString& aTag,
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nsIDOMNode *aParent,
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uint32_t aOffsetInParent);
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CreateElementTxn();
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(CreateElementTxn, EditTxn)
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NS_DECL_EDITTXN
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NS_IMETHOD RedoTransaction();
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NS_IMETHOD GetNewNode(nsIDOMNode **aNewNode);
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protected:
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/** the document into which the new node will be inserted */
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nsEditor* mEditor;
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/** the tag (mapping to object type) for the new element */
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nsString mTag;
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/** the node into which the new node will be inserted */
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nsCOMPtr<nsIDOMNode> mParent;
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/** the index in mParent for the new node */
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uint32_t mOffsetInParent;
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/** the new node to insert */
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nsCOMPtr<nsIDOMNode> mNewNode;
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/** the node we will insert mNewNode before. We compute this ourselves. */
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nsCOMPtr<nsIDOMNode> mRefNode;
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};
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#endif
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