fix: 修复空页面执行右键删除和右键复制时控制台报错的问题

packages/canvas/src/components/container/CanvasMenu.vue

@@ -4,9 +4,12 @@
       <li
         v-for="(item, index) in menus"
         :key="index"
-        :class="item.items ? 'li-item' : ''"
+        :class="{
+          'li-item': item.items,
+          'li-item-disabled': actionDisabled(item)
+        }"
         @click="doOperation(item)"
-        @mouseover="current = item"
+        @mouseover="onShowChildrenMenu(item)"
       >
         <div>
           <span>{{ item.name }}</span>
@@ -98,7 +101,8 @@ export default {
         items: [
           { name: '文字提示', code: 'wrap', value: 'TinyTooltip' },
           { name: '弹出框', code: 'wrap', value: 'TinyPopover' }
-        ]
+        ],
+        code: 'addParent'
       },
       { name: '删除', code: 'del' },
       { name: '复制', code: 'copy' },
@@ -107,14 +111,23 @@ export default {
 
     const boxVisibility = ref(false)
 
+    const actionDisabled = (actionItem) => {
+      const actions = ['del', 'copy', 'addParent']
+      return actions.includes(actionItem.code) && !getCurrent().schema?.id
+    }
+
+    const onShowChildrenMenu = (menuItem) => {
+      current.value = !actionDisabled(menuItem) ? menuItem : null
+    }
+
     // 计算上下文菜单位置，右键时显示，否则关闭
 
     const operations = {
       del() {
-        removeNodeById(getCurrent().schema.id)
+        removeNodeById(getCurrent().schema?.id)
       },
       copy() {
-        copyNode(getCurrent().schema.id)
+        copyNode(getCurrent().schema?.id)
       },
       config() {
         useLayout().activeSetting('props')
@@ -128,17 +141,19 @@ export default {
       wrap({ value, name }) {
         const componentName = value || name
         const { schema, parent } = getCurrent()
-        const index = parent.children.indexOf(schema)
-        const wrapSchema = {
-          componentName,
-          id: null,
-          props: {},
-          children: [schema]
+        if (schema && parent) {
+          const index = parent.children.indexOf(schema)
+          const wrapSchema = {
+            componentName,
+            id: null,
+            props: {},
+            children: [schema]
+          }
+
+          parent.children.splice(index, 1, wrapSchema)
+
+          getController().addHistory()
         }
-
-        parent.children.splice(index, 1, wrapSchema)
-
-        getController().addHistory()
       },
       createBlock() {
         if (useCanvas().isSaved()) {
@@ -161,7 +176,7 @@ export default {
       }
 
       if (item?.code) {
-        operations[item.code](item)
+        operations[item.code]?.(item)
         closeMenu()
       }
     }
@@ -173,7 +188,9 @@ export default {
       boxVisibility,
       close,
       current,
-      menuDom
+      menuDom,
+      actionDisabled,
+      onShowChildrenMenu
     }
   }
 }
@@ -196,6 +213,10 @@ export default {
   .li-item {
     border-bottom: 1px solid var(--ti-lowcode-canvas-menu-border-color);
   }
+  .li-item-disabled {
+    cursor: not-allowed;
+    color: var(--ti-lowcode-canvas-menu-item-disabled-color);
+  }
   li {
     & > div {
       display: flex;

packages/canvas/src/components/container/container.js

@@ -52,7 +52,7 @@
 })
 
 export const getContext = () => {
   return getRenderer().getContext()
 }
 
 // 记录拖拽状态
@@ -110,7 +110,7 @@
   // 如果element存在表示在iframe内部拖拽
   dragState.element = element
   dragState.offset = { offsetX, offsetY, horizontal, vertical, width, height, x, y }
   clearHover()
 }
 
 export const clearLineState = () => {
@@ -130,7 +130,7 @@
 
   // 重置拖拽插入位置状态
   clearLineState()
   smoothScroll.stop()
 }
 
 export const getOffset = (element) => {
@@ -209,9 +209,9 @@
     return
   }
 
   removeNode(getNode(id, true))
   clearSelect()
   getController().addHistory()
   canvasState.emit('remove')
 }
 
@@ -237,19 +237,22 @@
     }
   }
 
   select && setTimeout(() => selectNode(node.data.id))
 
   getController().addHistory()
 }
 
 export const addComponent = (data, position) => {
   const { schema, parent } = getCurrent()
 
   insertNode({ node: schema, parent, data }, position)
 }
 
 export const copyNode = (id) => {
+  if (!id) {
+    return
+  }
   const { node, parent } = getNode(id, true)
 
   inserAfter({ parent, node, data: copyObject(node) })
   getController().addHistory()