The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/editor/libeditor/base/DeleteTextTxn.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,70 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#ifndef DeleteTextTxn_h__
    1.10 +#define DeleteTextTxn_h__
    1.11 +
    1.12 +#include "EditTxn.h"
    1.13 +#include "nsCOMPtr.h"
    1.14 +#include "nsCycleCollectionParticipant.h"
    1.15 +#include "nsID.h"
    1.16 +#include "nsIDOMCharacterData.h"
    1.17 +#include "nsString.h"
    1.18 +#include "nscore.h"
    1.19 +
    1.20 +class nsEditor;
    1.21 +class nsRangeUpdater;
    1.22 +
    1.23 +/**
    1.24 + * A transaction that removes text from a content node.
    1.25 + */
    1.26 +class DeleteTextTxn : public EditTxn
    1.27 +{
    1.28 +public:
    1.29 +  /** initialize the transaction.
    1.30 +    * @param aEditor  the provider of basic editing operations
    1.31 +    * @param aElement the content node to remove text from
    1.32 +    * @param aOffset  the location in aElement to begin the deletion
    1.33 +    * @param aNumCharsToDelete  the number of characters to delete.  Not the number of bytes!
    1.34 +    */
    1.35 +  NS_IMETHOD Init(nsEditor* aEditor,
    1.36 +                  nsIDOMCharacterData* aCharData,
    1.37 +                  uint32_t aOffset,
    1.38 +                  uint32_t aNumCharsToDelete,
    1.39 +                  nsRangeUpdater* aRangeUpdater);
    1.40 +
    1.41 +  DeleteTextTxn();
    1.42 +
    1.43 +  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteTextTxn, EditTxn)
    1.44 +  NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
    1.45 +
    1.46 +  NS_DECL_EDITTXN
    1.47 +
    1.48 +  uint32_t GetOffset() { return mOffset; }
    1.49 +
    1.50 +  uint32_t GetNumCharsToDelete() { return mNumCharsToDelete; }
    1.51 +
    1.52 +protected:
    1.53 +
    1.54 +  /** the provider of basic editing operations */
    1.55 +  nsEditor* mEditor;
    1.56 +
    1.57 +  /** the CharacterData node to operate upon */
    1.58 +  nsCOMPtr<nsIDOMCharacterData> mCharData;
    1.59 +
    1.60 +  /** the offset into mCharData where the deletion is to take place */
    1.61 +  uint32_t mOffset;
    1.62 +
    1.63 +  /** the number of characters to delete */
    1.64 +  uint32_t mNumCharsToDelete;
    1.65 +
    1.66 +  /** the text that was deleted */
    1.67 +  nsString mDeletedText;
    1.68 +
    1.69 +  /** range updater object */
    1.70 +  nsRangeUpdater* mRangeUpdater;
    1.71 +};
    1.72 +
    1.73 +#endif