From 03f33cc0a94684b58934a4444914afca37af1ab2 Mon Sep 17 00:00:00 2001
From: liaibo <liaibo@yeah.net>
Date: Sun, 28 Dec 2025 22:13:19 +0800
Subject: [PATCH] =?UTF-8?q?fix(mindmap):=20=E8=A1=A5=E5=85=A8=20ensureActi?=
 =?UTF-8?q?veBefore=20=E9=98=B2=E6=AD=A2=E5=B7=A5=E5=85=B7=E6=A0=8F?=
 =?UTF-8?q?=E6=8A=A5=E9=94=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../components/editor/blocks/MindmapBlock.tsx | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx b/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx
index 741a4c7d..3042fa72 100644
--- a/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx
+++ b/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx
@@ -82,6 +82,26 @@ const applyToActiveNodes = (
   (mindmap.renderer?.activeNodeList ?? []).forEach(handler);
 };
 
+// 确保存在激活节点后再执行命令，若无则自动选中根节点
+const ensureActiveBefore = (mindmap?: MindMapInstance | null) => {
+  const mm = mindmap ?? null;
+  if (!mm) {
+    window.alert("思维导图尚未初始化");
+    return null;
+  }
+  const list = mm.renderer?.activeNodeList ?? [];
+  if (!list || list.length === 0) {
+    const root = mm.renderer?.root ?? mm.renderer?.renderTree?._node;
+    if (root) {
+      mm.execCommand?.("SET_NODE_ACTIVE", root, true);
+    } else {
+      window.alert("请先选中一个节点");
+      return null;
+    }
+  }
+  return mm;
+};
+
 const MindmapBlockView = ({
   block,
   editor,