fix evt property when transformer is used. fix #981

CHANGELOG.md

@@ -3,6 +3,7 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+* fixes for `dragstart` event when `Konva.Transformer` is used. `dragstart` event will have correct native `evt` reference
 * Better unicode support in `Konva.Text` and `Konva.TextPath`. Emoji should work better now 👍
 
 ## 7.1.0

src/shapes/Transformer.ts

@@ -347,7 +347,7 @@ export class Transformer extends Group {
           x: otherAbs.x + dx,
           y: otherAbs.y + dy,
         });
-        otherNode.startDrag();
+        otherNode.startDrag(e);
       });
       lastPos = null;
     });

test/unit/shapes/Transformer-test.js

@@ -3856,7 +3856,7 @@ suite('Transformer', function () {
     assert.almostEqual(tr.y(), 100);
   });
 
-  test('drag several nodes', function () {
+  test.only('drag several nodes', function () {
     var stage = addStage();
     var layer = new Konva.Layer();
     stage.add(layer);
@@ -3914,7 +3914,8 @@ suite('Transformer', function () {
 
     // also drag should bubble to stage
     // two times for two rects
-    stage.on('dragstart', () => {
+    stage.on('dragstart', (e) => {
+      assert.equal(!!e.evt, true);
       dragstart += 1;
     });