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37 :
38 : #ifndef CreateElementTxn_h__
39 : #define CreateElementTxn_h__
40 :
41 : #include "EditTxn.h"
42 : #include "nsEditor.h"
43 : #include "nsIDOMNode.h"
44 : #include "nsCOMPtr.h"
45 :
46 : /**
47 : * A transaction that creates a new node in the content tree.
48 : */
49 : class CreateElementTxn : public EditTxn
50 0 : {
51 : public:
52 : enum { eAppend=-1 };
53 :
54 : /** Initialize the transaction.
55 : * @param aEditor the provider of basic editing functionality
56 : * @param aTag the tag (P, HR, TABLE, etc.) for the new element
57 : * @param aParent the node into which the new element will be inserted
58 : * @param aOffsetInParent the location in aParent to insert the new element
59 : * if eAppend, the new element is appended as the last child
60 : */
61 : NS_IMETHOD Init(nsEditor *aEditor,
62 : const nsAString& aTag,
63 : nsIDOMNode *aParent,
64 : PRUint32 aOffsetInParent);
65 :
66 : CreateElementTxn();
67 :
68 : NS_DECL_ISUPPORTS_INHERITED
69 1464 : NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(CreateElementTxn, EditTxn)
70 :
71 : NS_DECL_EDITTXN
72 :
73 : NS_IMETHOD RedoTransaction();
74 :
75 : NS_IMETHOD GetNewNode(nsIDOMNode **aNewNode);
76 :
77 : protected:
78 :
79 : /** the document into which the new node will be inserted */
80 : nsEditor* mEditor;
81 :
82 : /** the tag (mapping to object type) for the new element */
83 : nsString mTag;
84 :
85 : /** the node into which the new node will be inserted */
86 : nsCOMPtr<nsIDOMNode> mParent;
87 :
88 : /** the index in mParent for the new node */
89 : PRUint32 mOffsetInParent;
90 :
91 : /** the new node to insert */
92 : nsCOMPtr<nsIDOMNode> mNewNode;
93 :
94 : /** the node we will insert mNewNode before. We compute this ourselves. */
95 : nsCOMPtr<nsIDOMNode> mRefNode;
96 : };
97 :
98 : #endif
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