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90 lines
2.5 KiB
C++
90 lines
2.5 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 IMETextTxn_h__
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#define IMETextTxn_h__
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#include "EditTxn.h"
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#include "nsIDOMCharacterData.h"
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#include "nsIPrivateTextRange.h"
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#include "nsCOMPtr.h"
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#include "nsWeakPtr.h"
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#include "nsIAtom.h"
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// {D4D25721-2813-11d3-9EA3-0060089FE59B}
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#define IME_TEXT_TXN_CID \
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{0xd4d25721, 0x2813, 0x11d3, \
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{0x9e, 0xa3, 0x0, 0x60, 0x8, 0x9f, 0xe5, 0x9b }}
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class nsIEditor;
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/**
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* A transaction that inserts text into a content node.
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*/
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class IMETextTxn : public EditTxn
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{
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public:
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static const nsIID& GetCID() { static const nsIID iid = IME_TEXT_TXN_CID; return iid; }
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/** initialize the transaction
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* @param aElement the text content node
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* @param aOffset the location in aElement to do the insertion
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* @param aReplaceLength the length of text to replace (0 == no replacement)
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* @param aString the new text to insert
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* @param aSelCon used to get and set the selection
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*/
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NS_IMETHOD Init(nsIDOMCharacterData *aElement,
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PRUint32 aOffset,
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PRUint32 aReplaceLength,
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nsIPrivateTextRangeList* aTextRangeList,
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const nsAString& aString,
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nsIEditor* aEditor);
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IMETextTxn();
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IMETextTxn, EditTxn)
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NS_DECL_EDITTXN
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NS_IMETHOD Merge(nsITransaction *aTransaction, bool *aDidMerge);
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NS_IMETHOD MarkFixed(void);
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// nsISupports declarations
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// override QueryInterface to handle IMETextTxn request
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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/** return the string data associated with this transaction */
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NS_IMETHOD GetData(nsString& aResult, nsIPrivateTextRangeList** aTextRangeList);
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protected:
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NS_IMETHOD CollapseTextSelection(void);
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/** the text element to operate upon */
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nsCOMPtr<nsIDOMCharacterData> mElement;
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/** the offsets into mElement where the insertion should be placed*/
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PRUint32 mOffset;
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PRUint32 mReplaceLength;
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/** the text to insert into mElement at mOffset */
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nsString mStringToInsert;
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/** the range list **/
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nsCOMPtr<nsIPrivateTextRangeList> mRangeList;
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/** the editor, which is used to get the selection controller */
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nsIEditor *mEditor;
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bool mFixed;
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};
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#endif
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