setup()

in packages/element/src/form-tab/index.ts [66:148]

• 79 lines of code
• 4 McCabe index (conditional complexity)

    setup(props, { attrs, listeners }) {
      const field = useField().value
      const formTabRef = computed(() => props.formTab ?? createFormTab())

      const prefixCls = `${stylePrefix}-form-tab`

      return () => {
        const formTab = formTabRef.value
        const tabs = useTabs()
        const activeKey = props.value || formTab?.activeKey || tabs?.[0]?.name
        const badgedTab = (key: SchemaKey, props: any) => {
          const errors = field.form.queryFeedbacks({
            type: 'error',
            address: `${field.address.concat(key)}.*`,
          })
          if (errors.length) {
            return () =>
              h(
                Badge,
                {
                  class: [`${prefixCls}-errors-badge`],
                  props: {
                    value: errors.length,
                  },
                },
                { default: () => props.label }
              )
          }
          return () => props.label
        }

        const getTabs = (tabs) => {
          return tabs.map(({ props, schema, name }, key) => {
            return h(
              TabPane,
              {
                key,
                props,
              },
              {
                default: () => [
                  h(
                    RecursionField,
                    {
                      props: {
                        schema,
                        name,
                      },
                    },
                    {}
                  ),
                ],
                label: () => [
                  h('div', {}, { default: badgedTab(name, props) }),
                ],
              }
            )
          })
        }

        return h(
          Tabs,
          {
            class: [prefixCls],
            style: attrs.style,
            props: {
              ...attrs,
              value: activeKey,
            },
            on: {
              ...listeners,
              input: (key) => {
                listeners.input?.(key)
                formTab.setActiveKey?.(key)
              },
            },
          },
          {
            default: () => getTabs(tabs),
          }
        )
      }
    },