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comparison: editor/libeditor/base/ChangeAttributeTxn.h
editor/libeditor/base/ChangeAttributeTxn.h
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- 6474c204b198
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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 ChangeAttributeTxn_h__ | |
| 7 #define ChangeAttributeTxn_h__ | |
| 8 | |
| 9 #include "EditTxn.h" | |
| 10 #include "nsCOMPtr.h" | |
| 11 #include "nsCycleCollectionParticipant.h" | |
| 12 #include "nsIDOMElement.h" | |
| 13 #include "nsISupportsImpl.h" | |
| 14 #include "nsString.h" | |
| 15 #include "nscore.h" | |
| 16 | |
| 17 class nsIEditor; | |
| 18 | |
| 19 /** | |
| 20 * A transaction that changes an attribute of a content node. | |
| 21 * This transaction covers add, remove, and change attribute. | |
| 22 */ | |
| 23 class ChangeAttributeTxn : public EditTxn | |
| 24 { | |
| 25 public: | |
| 26 /** Initialize the transaction. | |
| 27 * @param aEditor the object providing core editing operations | |
| 28 * @param aNode the node whose attribute will be changed | |
| 29 * @param aAttribute the name of the attribute to change | |
| 30 * @param aValue the new value for aAttribute, if aRemoveAttribute is false | |
| 31 * @param aRemoveAttribute if true, remove aAttribute from aNode | |
| 32 */ | |
| 33 NS_IMETHOD Init(nsIEditor *aEditor, | |
| 34 nsIDOMElement *aNode, | |
| 35 const nsAString& aAttribute, | |
| 36 const nsAString& aValue, | |
| 37 bool aRemoveAttribute); | |
| 38 | |
| 39 ChangeAttributeTxn(); | |
| 40 | |
| 41 NS_DECL_ISUPPORTS_INHERITED | |
| 42 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ChangeAttributeTxn, EditTxn) | |
| 43 | |
| 44 NS_DECL_EDITTXN | |
| 45 | |
| 46 NS_IMETHOD RedoTransaction(); | |
| 47 | |
| 48 protected: | |
| 49 | |
| 50 /** the editor that created this transaction */ | |
| 51 nsIEditor* mEditor; | |
| 52 | |
| 53 /** the element to operate upon */ | |
| 54 nsCOMPtr<nsIDOMElement> mElement; | |
| 55 | |
| 56 /** the attribute to change */ | |
| 57 nsString mAttribute; | |
| 58 | |
| 59 /** the value to set the attribute to (ignored if mRemoveAttribute==true) */ | |
| 60 nsString mValue; | |
| 61 | |
| 62 /** the value to set the attribute to for undo */ | |
| 63 nsString mUndoValue; | |
| 64 | |
| 65 /** true if the mAttribute was set on mElement at the time of execution */ | |
| 66 bool mAttributeWasSet; | |
| 67 | |
| 68 /** true if the operation is to remove mAttribute from mElement */ | |
| 69 bool mRemoveAttribute; | |
| 70 }; | |
| 71 | |
| 72 #endif |
