1 files changed, 51 insertions, 0 deletions
diff --git a/editor/libeditor/JoinSplitNodeDirection.h b/editor/libeditor/JoinSplitNodeDirection.h
new file mode 100644
index 0000000000..fd50759168
--- /dev/null
+++ b/editor/libeditor/JoinSplitNodeDirection.h
@@ -0,0 +1,51 @@
+/* -*- 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 JoinSplitNodeDirection_h
+#define JoinSplitNodeDirection_h
+
+#include <iostream>
+
+namespace mozilla {
+
+// JoinNodesDirection is also affected to which one is new node at splitting
+// a node because a couple of undo/redo.
+enum class JoinNodesDirection {
+  LeftNodeIntoRightNode,
+  RightNodeIntoLeftNode,
+};
+
+static inline std::ostream& operator<<(std::ostream& aStream,
+                                       JoinNodesDirection aJoinNodesDirection) {
+  if (aJoinNodesDirection == JoinNodesDirection::LeftNodeIntoRightNode) {
+    return aStream << "JoinNodesDirection::LeftNodeIntoRightNode";
+  }
+  if (aJoinNodesDirection == JoinNodesDirection::RightNodeIntoLeftNode) {
+    return aStream << "JoinNodesDirection::RightNodeIntoLeftNode";
+  }
+  return aStream << "Invalid value";
+}
+
+// SplitNodeDirection is also affected to which one is removed at joining a
+// node because a couple of undo/redo.
+enum class SplitNodeDirection {
+  LeftNodeIsNewOne,
+  RightNodeIsNewOne,
+};
+
+static inline std::ostream& operator<<(std::ostream& aStream,
+                                       SplitNodeDirection aSplitNodeDirection) {
+  if (aSplitNodeDirection == SplitNodeDirection::LeftNodeIsNewOne) {
+    return aStream << "SplitNodeDirection::LeftNodeIsNewOne";
+  }
+  if (aSplitNodeDirection == SplitNodeDirection::RightNodeIsNewOne) {
+    return aStream << "SplitNodeDirection::RightNodeIsNewOne";
+  }
+  return aStream << "Invalid value";
+}
+
+}  // namespace mozilla
+
+#endif  // JoinSplitNodeDirection_h