gecko-dev/editor/libeditor/CreateElementTxn.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef CreateElementTxn_h__
#define CreateElementTxn_h__
#include "EditTxn.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupportsImpl.h"
class nsEditor;
class nsIAtom;
class nsIContent;
class nsINode;
/**
* A transaction that creates a new node in the content tree.
*/
namespace mozilla {
namespace dom {
class Element;
class CreateElementTxn : public EditTxn
{
public:
/** Initialize the transaction.
* @param aEditor the provider of basic editing functionality
* @param aTag the tag (P, HR, TABLE, etc.) for the new element
* @param aParent the node into which the new element will be inserted
* @param aOffsetInParent the location in aParent to insert the new element
* if eAppend, the new element is appended as the last child
*/
CreateElementTxn(nsEditor& aEditor,
nsIAtom& aTag,
nsINode& aParent,
int32_t aOffsetInParent);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(CreateElementTxn, EditTxn)
NS_DECL_EDITTXN
NS_IMETHOD RedoTransaction() override;
already_AddRefed<Element> GetNewNode();
protected:
virtual ~CreateElementTxn();
/** the document into which the new node will be inserted */
nsEditor* mEditor;
/** the tag (mapping to object type) for the new element */
nsCOMPtr<nsIAtom> mTag;
/** the node into which the new node will be inserted */
nsCOMPtr<nsINode> mParent;
/** the index in mParent for the new node */
int32_t mOffsetInParent;
/** the new node to insert */
nsCOMPtr<Element> mNewNode;
/** the node we will insert mNewNode before. We compute this ourselves. */
nsCOMPtr<nsIContent> mRefNode;
};
} // namespace dom
} // namespace mozilla
#endif