阿里低代码框架lowcode-engine设置默认容器详解

export interface IFormContainerProps {
  // 列数
  cols: number;
}
/**
 * Form容器包装器。lowcode-engine不支持直接使用hooks组件，需要包裹一层，要不内容元素没办法直接嵌入
 */
export const FormContainerWrapper = forwardRef<IFormRef | undefined, IFormContainerProps>(function FormContainer({
  cols,
  children
}, ref) {
  const [form] = Form.useForm();
  React.useImperativeHandle(ref, () => {
    return {
      formRef: form
    }
  }, [])
  const getChildren = () => {
    if (React.Children.count(children) <= 1) {
      return children;
    }
    const newArray = groupArray(React.Children.toArray(children), cols);
    return newArray.map(childs => {
      return <Row key={childs?.[0]?.key} gutter={[16, 24]} className={generatorClass('form-container-row')}>
        {
          childs.map(child => {
            const { props } = child;
            const name = props.componentId || props.__id;
            return <Col key={name} span={24 / cols}>
              <Form.Item
                label=""
                name={name}
                rules={[{ required: props.isRequired, message: `${props.title}不能为空！` }]}
              >
                {child}
              </Form.Item>
            </Col>;
          })
        }
      </Row>
    })
  }
  const rootClassNames = classNames(generatorClass('form-container'));
  return (
    <Form form={form} className={rootClassNames}>
      {getChildren()}
    </Form>
  )
});
/**
 * 容器组件
 */
export class FormContainer extends React.Component<IFormContainerProps, any> {
  render() {
    return (
      <FormContainerWrapper {...this.props} />
    )
  }
}

 "configure": {
    "props": [
      {
        "title": {
          "label": {
            "type": "i18n",
            "en-US": "cols",
            "zh-CN": "列数"
          }
        },
        "name": "cols",
        "setter": {
          "title": "列数",
          "componentName": "RadioGroupSetter",
          "isRequired": true,
          "props": {
            "options": [{
              "label": "1列",
              "value": 1,
            }, {
              "label": "2列",
              "value": 2,
            }, {
              "label": "3列",
              "value": 3,
            }, {
              "label": "4列",
              "value": 4
            }]
          },
          "initialValue": 1
        }
      }
    ],
    "supports": {
    },
    "component": {
      // 是否是容器组件，如果是容器组件，别的组件可以放置内容
      isContainer: true
    },
  }

 "componentName": "Page",
  "id": "node_dockcviv8fo1",
  ...
  "title": "页面",
  "isLocked": false,
  "condition": true,
  "conditionGroup": "",
  "children": [
    {
      // 容器组件
      "componentName": "FormContainer",
      "id": "node_oclcdgs7nr1",
      "props": {
        "cols": 2
      },
      "hidden": false,
      "title": "",
      "isLocked": false,
      "condition": true,
      "conditionGroup": ""
    }
  ]