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import PropTypes from '../_util/vue-types'
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import classNames from 'classnames'
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import Row from '../grid/Row'
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import Col, { ColProps } from '../grid/Col'
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import warning from '../_util/warning'
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import { FIELD_META_PROP, FIELD_DATA_PROP } from './constants'
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import { initDefaultProps, getComponentFromProp, filterEmpty, getSlotOptions, getSlots } from '../_util/props-util'
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import getTransitionProps from '../_util/getTransitionProps'
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import BaseMixin from '../_util/BaseMixin'
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export const FormItemProps = {
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id: PropTypes.string,
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prefixCls: PropTypes.string,
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label: PropTypes.any,
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labelCol: PropTypes.shape(ColProps).loose,
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wrapperCol: PropTypes.shape(ColProps).loose,
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help: PropTypes.any,
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extra: PropTypes.any,
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validateStatus: PropTypes.oneOf(['', 'success', 'warning', 'error', 'validating']),
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hasFeedback: PropTypes.bool,
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required: PropTypes.bool,
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colon: PropTypes.bool,
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}
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export default {
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name: 'AFormItem',
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__ANT_FORM_ITEM: true,
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mixins: [BaseMixin],
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props: initDefaultProps(FormItemProps, {
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hasFeedback: false,
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prefixCls: 'ant-form',
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colon: true,
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}),
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inject: {
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FormProps: { default: {}},
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},
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data () {
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return { helpShow: false }
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},
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mounted () {
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warning(
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this.getControls(this.$slots.default, true).length <= 1,
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'`Form.Item` cannot generate `validateStatus` and `help` automatically, ' +
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'while there are more than one `getFieldDecorator` in it.',
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)
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},
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// shouldComponentUpdate(...args: any[]) {
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// return PureRenderMixin.shouldComponentUpdate.apply(this, args);
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// }
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methods: {
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getHelpMsg () {
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const help = getComponentFromProp(this, 'help')
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const onlyControl = this.getOnlyControl()
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if (help === undefined && onlyControl) {
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const errors = this.getField().errors
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return errors ? errors.map((e) => e.message).join(', ') : ''
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}
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return help
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},
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getControls (childrenArray = [], recursively) {
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let controls = []
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for (let i = 0; i < childrenArray.length; i++) {
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if (!recursively && controls.length > 0) {
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break
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}
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const child = childrenArray[i]
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if (!child.tag && child.text.trim() === '') {
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continue
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}
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if (getSlotOptions(child).__ANT_FORM_ITEM) {
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continue
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}
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const attrs = child.data && child.data.attrs
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if (!attrs) {
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continue
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}
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const slots = getSlots(child)
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if (FIELD_META_PROP in attrs) { // And means FIELD_DATA_PROP in chidl.props, too.
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controls.push(child)
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} else if (slots.default) {
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controls = controls.concat(this.getControls(slots.default, recursively))
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}
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}
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return controls
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},
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getOnlyControl () {
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const child = this.getControls(this.$slots.default, false)[0]
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return child !== undefined ? child : null
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},
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getChildAttr (prop) {
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const child = this.getOnlyControl()
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let data = {}
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if (!child) {
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return undefined
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}
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if (child.data) {
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data = child.data
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} else if (child.$vnode && child.$vnode.data) {
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data = child.$vnode.data
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}
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return data[prop] || data.attrs[prop]
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},
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getId () {
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return this.getChildAttr('id')
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},
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getMeta () {
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return this.getChildAttr(FIELD_META_PROP)
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},
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getField () {
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return this.getChildAttr(FIELD_DATA_PROP)
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},
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onHelpAnimEnd () {
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this.setState({ helpShow: false })
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},
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renderHelp () {
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const prefixCls = this.prefixCls
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const help = this.getHelpMsg()
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const children = help ? (
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<div class={`${prefixCls}-explain`} key='help'>
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{help}
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</div>
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) : null
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const transitionProps = getTransitionProps('show-help', {
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afterLeave: this.onHelpAnimEnd,
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})
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if (children) {
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this.setState({ helpShow: true })
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}
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return (
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<transition
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{...transitionProps}
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key='help'
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>
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{children}
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</transition>
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)
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},
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renderExtra () {
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const { prefixCls } = this
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const extra = getComponentFromProp(this, 'extra')
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return extra ? (
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<div class={`${prefixCls}-extra`}>{extra}</div>
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) : null
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},
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getValidateStatus () {
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const onlyControl = this.getOnlyControl()
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if (!onlyControl) {
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return ''
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}
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const field = this.getField()
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if (field.validating) {
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return 'validating'
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}
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if (field.errors) {
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return 'error'
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}
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const fieldValue = 'value' in field ? field.value : this.getMeta().initialValue
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if (fieldValue !== undefined && fieldValue !== null && fieldValue !== '') {
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return 'success'
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}
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return ''
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},
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renderValidateWrapper (c1, c2, c3) {
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const props = this.$props
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const onlyControl = this.getOnlyControl
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const validateStatus = (props.validateStatus === undefined && onlyControl)
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? this.getValidateStatus()
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: props.validateStatus
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let classes = `${props.prefixCls}-item-control`
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if (validateStatus) {
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classes = classNames(`${props.prefixCls}-item-control`, {
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'has-feedback': props.hasFeedback || validateStatus === 'validating',
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'has-success': validateStatus === 'success',
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'has-warning': validateStatus === 'warning',
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'has-error': validateStatus === 'error',
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'is-validating': validateStatus === 'validating',
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})
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}
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return (
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<div class={classes}>
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<span class={`${props.prefixCls}-item-children`}>{c1}</span>
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{c2}{c3}
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</div>
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)
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},
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renderWrapper (children) {
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const { prefixCls, wrapperCol = {}} = this
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const { class: cls, style, id, on, ...restProps } = wrapperCol
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const className = classNames(
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`${prefixCls}-item-control-wrapper`,
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cls,
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)
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const colProps = {
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props: restProps,
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class: className,
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key: 'wrapper',
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style,
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id,
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on,
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}
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return (
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<Col {...colProps}>
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{children}
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</Col>
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)
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},
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isRequired () {
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const { required } = this
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if (required !== undefined) {
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return required
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}
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if (this.getOnlyControl()) {
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const meta = this.getMeta() || {}
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const validate = meta.validate || []
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return validate.filter((item) => !!item.rules).some((item) => {
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return item.rules.some((rule) => rule.required)
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})
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}
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return false
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},
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// Resolve duplicated ids bug between different forms
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// https://github.com/ant-design/ant-design/issues/7351
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onLabelClick (e) {
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const label = getComponentFromProp(this, 'label')
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const id = this.id || this.getId()
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if (!id) {
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return
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}
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const controls = document.querySelectorAll(`[id="${id}"]`)
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if (controls.length !== 1) {
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// Only prevent in default situation
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// Avoid preventing event in `label={<a href="xx">link</a>}``
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if (typeof label === 'string') {
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e.preventDefault()
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}
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const control = this.$el.querySelector(`[id="${id}"]`)
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if (control && control.focus) {
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control.focus()
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}
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}
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},
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renderLabel () {
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const { prefixCls, labelCol = {}, colon, id } = this
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const label = getComponentFromProp(this, 'label')
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const required = this.isRequired()
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const { class: labelColClass, style: labelColStyle, id: labelColId, on, ...restProps } = labelCol
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const labelColClassName = classNames(
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`${prefixCls}-item-label`,
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labelColClass,
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)
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const labelClassName = classNames({
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[`${prefixCls}-item-required`]: required,
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})
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let labelChildren = label
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// Keep label is original where there should have no colon
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const haveColon = colon && this.FormProps.layout !== 'vertical'
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// Remove duplicated user input colon
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if (haveColon && typeof label === 'string' && label.trim() !== '') {
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labelChildren = label.replace(/[：|:]\s*$/, '')
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}
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const colProps = {
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props: restProps,
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class: labelColClassName,
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key: 'label',
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style: labelColStyle,
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id: labelColId,
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on,
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}
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return label ? (
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<Col {...colProps} >
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<label
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for={id || this.getId()}
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class={labelClassName}
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title={typeof label === 'string' ? label : ''}
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onClick={this.onLabelClick}
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>
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{labelChildren}
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</label>
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</Col>
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) : null
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},
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renderChildren () {
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const { $slots } = this
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return [
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this.renderLabel(),
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this.renderWrapper(
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this.renderValidateWrapper(
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filterEmpty($slots.default || []),
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this.renderHelp(),
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this.renderExtra(),
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),
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),
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]
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},
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renderFormItem (children) {
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const props = this.$props
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const prefixCls = props.prefixCls
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const itemClassName = {
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[`${prefixCls}-item`]: true,
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[`${prefixCls}-item-with-help`]: !!this.getHelpMsg() || this.helpShow,
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[`${prefixCls}-item-no-colon`]: !props.colon,
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}
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return (
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<Row class={classNames(itemClassName)}>
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{children}
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</Row>
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)
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},
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},
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render () {
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const children = this.renderChildren()
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return this.renderFormItem(children)
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},
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}
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