1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef InsertTextTransaction_h
#define InsertTextTransaction_h
#include "EditTransactionBase.h" // base class
#include "EditorDOMPoint.h"
#include "EditorForwards.h"
#include "mozilla/dom/Text.h"
#include "nsCycleCollectionParticipant.h" // various macros
#include "nsID.h" // NS_INLINE_DECL_STATIC_IID
#include "nsISupportsImpl.h" // NS_DECL_ISUPPORTS_INHERITED
#include "nsString.h" // nsString members
#include "nscore.h" // NS_IMETHOD, nsAString
namespace mozilla {
/**
* A transaction that inserts text into a content node.
*/
class InsertTextTransaction : public EditTransactionBase {
protected:
InsertTextTransaction(EditorBase& aEditorBase,
const nsAString& aStringToInsert,
const EditorDOMPointInText& aPointToInsert);
public:
/**
* Creates new InsertTextTransaction instance. This never returns nullptr.
*
* @param aEditorBase The editor which manages the transaction.
* @param aPointToInsert The insertion point.
* @param aStringToInsert The new string to insert.
*/
static already_AddRefed<InsertTextTransaction> Create(
EditorBase& aEditorBase, const nsAString& aStringToInsert,
const EditorDOMPointInText& aPointToInsert);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(InsertTextTransaction,
EditTransactionBase)
NS_DECL_EDITTRANSACTIONBASE
NS_DECL_EDITTRANSACTIONBASE_GETASMETHODS_OVERRIDE(InsertTextTransaction)
MOZ_CAN_RUN_SCRIPT NS_IMETHOD RedoTransaction() override;
NS_IMETHOD Merge(nsITransaction* aOtherTransaction, bool* aDidMerge) override;
/**
* Return the string data associated with this transaction.
*/
const nsString& GetData() const { return mStringToInsert; }
/**
* Return the `Text` node to insert text (or delete text from).
*/
dom::Text* GetTextNode() const;
template <typename EditorDOMPointType>
EditorDOMPointType SuggestPointToPutCaret() const {
dom::Text* const textNode = GetTextNode();
if (NS_WARN_IF(!textNode)) {
return EditorDOMPointType();
}
return EditorDOMPointType(textNode, mOffset + mStringToInsert.Length());
}
friend std::ostream& operator<<(std::ostream& aStream,
const InsertTextTransaction& aTransaction);
protected:
virtual ~InsertTextTransaction() = default;
// Return true if aOtherTransaction immediately follows this transaction.
bool IsSequentialInsert(InsertTextTransaction& aOtherTransaction) const;
// The editor, which we'll need to get the selection.
RefPtr<EditorBase> mEditorBase;
// The text to insert into mTextNode at mOffset.
nsString mStringToInsert;
// The offset into mTextNode where the insertion is to take place.
uint32_t mOffset;
};
/**
* Private class for InsertTextTransaction when it needs to handle a transaction
* of `HTMLEditor`.
*/
class InsertTextIntoTextNodeTransaction final : public InsertTextTransaction {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(InsertTextIntoTextNodeTransaction,
InsertTextTransaction)
friend std::ostream& operator<<(
std::ostream& aStream,
const InsertTextIntoTextNodeTransaction& aTransaction);
private:
NS_DECL_EDITTRANSACTIONBASE_GETASMETHODS_OVERRIDE(
InsertTextIntoTextNodeTransaction)
InsertTextIntoTextNodeTransaction(EditorBase& aEditorBase,
const nsAString& aStringToInsert,
const EditorDOMPointInText& aPointToInsert);
virtual ~InsertTextIntoTextNodeTransaction() = default;
RefPtr<dom::Text> mTextNode;
friend class InsertTextTransaction;
};
} // namespace mozilla
#endif // #ifndef InsertTextTransaction_h
|
