From 62288a139f6fc550e91c9ffbf0cc7fc1c6e64188 Mon Sep 17 00:00:00 2001
From: liujuping <liujup@foxmail.com>
Date: Thu, 18 May 2023 10:43:58 +0800
Subject: [PATCH] feat: canvas.activeTracker.target returns add null

---
 packages/shell/src/model/active-tracker.ts       | 8 +++++++-
 packages/types/src/shell/model/active-tracker.ts | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/packages/shell/src/model/active-tracker.ts b/packages/shell/src/model/active-tracker.ts
index e6170b7a6..32d4c04eb 100644
--- a/packages/shell/src/model/active-tracker.ts
+++ b/packages/shell/src/model/active-tracker.ts
@@ -13,7 +13,13 @@ export class ActiveTracker implements IPublicModelActiveTracker {
   }
 
   get target() {
-    const { node: innerNode, detail, instance } = this[activeTrackerSymbol]._target;
+    const _target = this[activeTrackerSymbol]._target;
+
+    if (!_target) {
+      return null;
+    }
+
+    const { node: innerNode, detail, instance } = _target;
     const publicNode = ShellNode.create(innerNode);
     return {
       node: publicNode!,
diff --git a/packages/types/src/shell/model/active-tracker.ts b/packages/types/src/shell/model/active-tracker.ts
index 2538a2601..ac116a947 100644
--- a/packages/types/src/shell/model/active-tracker.ts
+++ b/packages/types/src/shell/model/active-tracker.ts
@@ -6,7 +6,7 @@ export interface IPublicModelActiveTracker {
   /**
    * @since 1.1.7
    */
-  target: IPublicTypeActiveTarget;
+  target: IPublicTypeActiveTarget | null;
 
   onChange(fn: (target: IPublicTypeActiveTarget) => void): () => void;