update CHANGELOG with new version

CHANGELOG.md

@@ -3,6 +3,11 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+### 9.3.10 (2024-05-23)
+
+- Fix chrome clear canvas issue
+- Typescript fixes
+
 ### 9.3.9 (2024-05-20)
 
 - Fix underline and line-through for `Konva.Text` when `Konva._fixTextRendering = true`

src/Stage.ts

@@ -965,3 +965,15 @@ _registerNode(Stage);
  * stage.container(container);
  */
 Factory.addGetterSetter(Stage, 'container');
+
+// chrome is clearing canvas in inactive browser window, causing layer content to be erased
+// so let's redraw layers as soon as window becomes active
+// TODO: any other way to solve this issue?
+// TODO: should we remove it if chrome fixes the issue?
+if (Konva.isBrowser) {
+  window.addEventListener('focus', () => {
+    stages.forEach((stage) => {
+      stage.batchDraw();
+    });
+  });
+}

src/shapes/Transformer.ts

@@ -47,7 +47,7 @@ export interface TransformerConfig extends ContainerConfig {
     newPos: Vector2d,
     evt: any
   ) => Vector2d;
-  anchorStyleFunc?: (anchor: Shape) => void;
+  anchorStyleFunc?: (anchor: Rect) => void;
 }
 
 var EVENTS_NAME = 'tr-konva';