From 472d3174b6854ca0e084e41cf8b0921292cc0c9b Mon Sep 17 00:00:00 2001
From: Boris Sekachev <boris.sekachev@yandex.ru>
Date: Tue, 24 Mar 2020 20:34:25 +0300
Subject: [PATCH] Added undopoint in editing

---
 cvat-canvas/src/typescript/editHandler.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cvat-canvas/src/typescript/editHandler.ts b/cvat-canvas/src/typescript/editHandler.ts
index defdb69e..07f366d6 100644
--- a/cvat-canvas/src/typescript/editHandler.ts
+++ b/cvat-canvas/src/typescript/editHandler.ts
@@ -99,6 +99,12 @@ export class EditHandlerImpl implements EditHandler {
             if (e.which === 1) {
                 mouseX = e.clientX;
                 mouseY = e.clientY;
+            } else if (e.which === 3 && this.editLine) {
+                if (this.editData.state.shapeType === 'points'
+                    || this.editLine.attr('points').split(' ').length > 2
+                ) {
+                    (this.editLine as any).draw('undo');
+                }
             }
         });