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70 lines
2.0 KiB
C++
70 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 InsertTextTxn_h__
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#define InsertTextTxn_h__
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#include "EditTxn.h"
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#include "nsIDOMCharacterData.h"
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#include "nsIEditor.h"
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#include "nsCOMPtr.h"
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#define INSERT_TEXT_TXN_CID \
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{/* 93276f00-ab2c-11d2-8f4b-006008159b0c*/ \
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0x93276f00, 0xab2c, 0x11d2, \
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{0x8f, 0xb4, 0x0, 0x60, 0x8, 0x15, 0x9b, 0xc} }
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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 InsertTextTxn : public EditTxn
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{
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public:
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static const nsIID& GetCID() { static const nsIID iid = INSERT_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 aString the new text to insert
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* @param aPresShell 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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const nsAString& aString,
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nsIEditor *aEditor);
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InsertTextTxn();
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(InsertTextTxn, EditTxn)
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NS_DECL_EDITTXN
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NS_IMETHOD Merge(nsITransaction *aTransaction, bool *aDidMerge);
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/** return the string data associated with this transaction */
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NS_IMETHOD GetData(nsString& aResult);
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protected:
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/** return true if aOtherTxn immediately follows this txn */
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virtual bool IsSequentialInsert(InsertTextTxn *aOtherTxn);
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/** the text element to operate upon */
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nsCOMPtr<nsIDOMCharacterData> mElement;
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/** the offset into mElement where the insertion is to take place */
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PRUint32 mOffset;
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/** the text to insert into mElement at mOffset */
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nsString mStringToInsert;
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/** the editor, which we'll need to get the selection */
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nsIEditor *mEditor;
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};
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#endif
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