1 files changed, 58 insertions, 0 deletions
diff --git a/editor/libeditor/EditAggregateTransaction.h b/editor/libeditor/EditAggregateTransaction.h
new file mode 100644
index 000000000..6ba27a01f
--- /dev/null
+++ b/editor/libeditor/EditAggregateTransaction.h
@@ -0,0 +1,58 @@
+/* -*- 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 EditAggregateTransaction_h
+#define EditAggregateTransaction_h
+
+#include "mozilla/EditTransactionBase.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIAtom.h"
+#include "nsISupportsImpl.h"
+#include "nsTArray.h"
+#include "nscore.h"
+
+class nsITransaction;
+
+namespace mozilla {
+
+/**
+ * base class for all document editing transactions that require aggregation.
+ * provides a list of child transactions.
+ */
+class EditAggregateTransaction : public EditTransactionBase
+{
+public:
+  EditAggregateTransaction();
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(EditAggregateTransaction,
+                                           EditTransactionBase)
+
+  NS_DECL_EDITTRANSACTIONBASE
+
+  NS_IMETHOD RedoTransaction() override;
+  NS_IMETHOD Merge(nsITransaction* aTransaction, bool* aDidMerge) override;
+
+  /**
+   * Append a transaction to this aggregate.
+   */
+  NS_IMETHOD AppendChild(EditTransactionBase* aTransaction);
+
+  /**
+   * Get the name assigned to this transaction.
+   */
+  NS_IMETHOD GetName(nsIAtom** aName);
+
+protected:
+  virtual ~EditAggregateTransaction();
+
+  nsTArray<RefPtr<EditTransactionBase>> mChildren;
+  nsCOMPtr<nsIAtom> mName;
+};
+
+} // namespace mozilla
+
+#endif // #ifndef EditAggregateTransaction_h