The Tor Browser / file comparison
comparison: editor/libeditor/base/DeleteTextTxn.h
editor/libeditor/base/DeleteTextTxn.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:2f4f72e10ab2 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef DeleteTextTxn_h__ | |
| 7 #define DeleteTextTxn_h__ | |
| 8 | |
| 9 #include "EditTxn.h" | |
| 10 #include "nsCOMPtr.h" | |
| 11 #include "nsCycleCollectionParticipant.h" | |
| 12 #include "nsID.h" | |
| 13 #include "nsIDOMCharacterData.h" | |
| 14 #include "nsString.h" | |
| 15 #include "nscore.h" | |
| 16 | |
| 17 class nsEditor; | |
| 18 class nsRangeUpdater; | |
| 19 | |
| 20 /** | |
| 21 * A transaction that removes text from a content node. | |
| 22 */ | |
| 23 class DeleteTextTxn : public EditTxn | |
| 24 { | |
| 25 public: | |
| 26 /** initialize the transaction. | |
| 27 * @param aEditor the provider of basic editing operations | |
| 28 * @param aElement the content node to remove text from | |
| 29 * @param aOffset the location in aElement to begin the deletion | |
| 30 * @param aNumCharsToDelete the number of characters to delete. Not the number of bytes! | |
| 31 */ | |
| 32 NS_IMETHOD Init(nsEditor* aEditor, | |
| 33 nsIDOMCharacterData* aCharData, | |
| 34 uint32_t aOffset, | |
| 35 uint32_t aNumCharsToDelete, | |
| 36 nsRangeUpdater* aRangeUpdater); | |
| 37 | |
| 38 DeleteTextTxn(); | |
| 39 | |
| 40 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteTextTxn, EditTxn) | |
| 41 NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr); | |
| 42 | |
| 43 NS_DECL_EDITTXN | |
| 44 | |
| 45 uint32_t GetOffset() { return mOffset; } | |
| 46 | |
| 47 uint32_t GetNumCharsToDelete() { return mNumCharsToDelete; } | |
| 48 | |
| 49 protected: | |
| 50 | |
| 51 /** the provider of basic editing operations */ | |
| 52 nsEditor* mEditor; | |
| 53 | |
| 54 /** the CharacterData node to operate upon */ | |
| 55 nsCOMPtr<nsIDOMCharacterData> mCharData; | |
| 56 | |
| 57 /** the offset into mCharData where the deletion is to take place */ | |
| 58 uint32_t mOffset; | |
| 59 | |
| 60 /** the number of characters to delete */ | |
| 61 uint32_t mNumCharsToDelete; | |
| 62 | |
| 63 /** the text that was deleted */ | |
| 64 nsString mDeletedText; | |
| 65 | |
| 66 /** range updater object */ | |
| 67 nsRangeUpdater* mRangeUpdater; | |
| 68 }; | |
| 69 | |
| 70 #endif |
