1 files changed, 88 insertions, 0 deletions
diff --git a/editor/libeditor/InsertTextTransaction.h b/editor/libeditor/InsertTextTransaction.h
new file mode 100644
index 000000000..f97f20e37
--- /dev/null
+++ b/editor/libeditor/InsertTextTransaction.h
@@ -0,0 +1,88 @@
+/* -*- 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 "mozilla/EditTransactionBase.h"  // base class
+#include "nsCycleCollectionParticipant.h" // various macros
+#include "nsID.h"                       // NS_DECLARE_STATIC_IID_ACCESSOR
+#include "nsISupportsImpl.h"            // NS_DECL_ISUPPORTS_INHERITED
+#include "nsString.h"                   // nsString members
+#include "nscore.h"                     // NS_IMETHOD, nsAString
+
+class nsITransaction;
+
+#define NS_INSERTTEXTTXN_IID \
+{ 0x8c9ad77f, 0x22a7, 0x4d01, \
+  { 0xb1, 0x59, 0x8a, 0x0f, 0xdb, 0x1d, 0x08, 0xe9 } }
+
+namespace mozilla {
+
+class EditorBase;
+class RangeUpdater;
+
+namespace dom {
+class Text;
+} // namespace dom
+
+/**
+ * A transaction that inserts text into a content node.
+ */
+class InsertTextTransaction final : public EditTransactionBase
+{
+public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INSERTTEXTTXN_IID)
+
+  /**
+   * @param aElement        The text content node.
+   * @param aOffset         The location in aElement to do the insertion.
+   * @param aString         The new text to insert.
+   * @param aPresShell      Used to get and set the selection.
+   * @param aRangeUpdater   The range updater
+   */
+  InsertTextTransaction(dom::Text& aTextNode, uint32_t aOffset,
+                        const nsAString& aString, EditorBase& aEditorBase,
+                        RangeUpdater* aRangeUpdater);
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(InsertTextTransaction,
+                                           EditTransactionBase)
+
+  NS_DECL_EDITTRANSACTIONBASE
+
+  NS_IMETHOD Merge(nsITransaction* aTransaction, bool* aDidMerge) override;
+
+  /**
+   * Return the string data associated with this transaction.
+   */
+  void GetData(nsString& aResult);
+
+private:
+  virtual ~InsertTextTransaction();
+
+  // Return true if aOtherTransaction immediately follows this transaction.
+  bool IsSequentialInsert(InsertTextTransaction& aOtherTrasaction);
+
+  // The Text node to operate upon.
+  RefPtr<dom::Text> mTextNode;
+
+  // The offset into mTextNode where the insertion is to take place.
+  uint32_t mOffset;
+
+  // The text to insert into mTextNode at mOffset.
+  nsString mStringToInsert;
+
+  // The editor, which we'll need to get the selection.
+  EditorBase& mEditorBase;
+
+  RangeUpdater* mRangeUpdater;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(InsertTextTransaction, NS_INSERTTEXTTXN_IID)
+
+} // namespace mozilla
+
+#endif // #ifndef InsertTextTransaction_h