149 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
			
		
		
	
	
			149 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
| 
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| import PropTypes from '../_util/vue-types'
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| import BaseMixin from '../_util/BaseMixin'
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| import debounce from 'lodash/debounce'
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| import isFlexSupported from '../_util/isFlexSupported'
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| import {
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|   filterEmpty,
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|   getEvents,
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|   getPropsData,
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| } from '../_util/props-util'
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| import { cloneElement } from '../_util/vnode'
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| 
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| export default {
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|   name: 'Steps',
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|   mixins: [BaseMixin],
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|   props: {
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|     prefixCls: PropTypes.string.def('rc-steps'),
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|     iconPrefix: PropTypes.string.def('rc'),
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|     direction: PropTypes.string.def('horizontal'),
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|     labelPlacement: PropTypes.string.def('horizontal'),
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|     status: PropTypes.string.def('process'),
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|     size: PropTypes.string.def(''),
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|     progressDot: PropTypes.oneOfType([
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|       PropTypes.bool,
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|       PropTypes.func,
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|     ]),
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|     current: PropTypes.number.def(0),
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|   },
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|   data () {
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|     this.calcStepOffsetWidth = debounce(this.calcStepOffsetWidth, 150)
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|     return {
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|       flexSupported: true,
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|       lastStepOffsetWidth: 0,
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|     }
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|   },
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|   mounted () {
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|     this.$nextTick(() => {
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|       this.calcStepOffsetWidth()
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|       if (!isFlexSupported()) {
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|         this.setState({
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|           flexSupported: false,
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|         })
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|       }
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|     })
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|   },
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|   updated () {
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|     this.$nextTick(() => {
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|       this.calcStepOffsetWidth()
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|     })
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|   },
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|   beforeDestroy () {
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|     if (this.calcTimeout) {
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|       clearTimeout(this.calcTimeout)
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|     }
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|     if (this.calcStepOffsetWidth && this.calcStepOffsetWidth.cancel) {
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|       this.calcStepOffsetWidth.cancel()
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|     }
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|   },
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|   methods: {
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|     calcStepOffsetWidth () {
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|       if (isFlexSupported()) {
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|         return
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|       }
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|       // Just for IE9
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|       const domNode = this.$refs.vcStepsRef
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|       if (domNode.children.length > 0) {
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|         if (this.calcTimeout) {
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|           clearTimeout(this.calcTimeout)
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|         }
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|         this.calcTimeout = setTimeout(() => {
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|         // +1 for fit edge bug of digit width, like 35.4px
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|           const lastStepOffsetWidth = (domNode.lastChild.offsetWidth || 0) + 1
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|           // Reduce shake bug
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|           if (this.lastStepOffsetWidth === lastStepOffsetWidth ||
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|             Math.abs(this.lastStepOffsetWidth - lastStepOffsetWidth) <= 3) {
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|             return
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|           }
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|           this.setState({ lastStepOffsetWidth })
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|         })
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|       }
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|     },
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|   },
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|   render () {
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|     const {
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|       prefixCls, direction,
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|       labelPlacement, iconPrefix, status, size, current, $scopedSlots,
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|     } = this
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|     let progressDot = this.progressDot
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|     if (progressDot === undefined) {
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|       progressDot = $scopedSlots.progressDot
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|     }
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|     const { lastStepOffsetWidth, flexSupported } = this
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|     const filteredChildren = filterEmpty(this.$slots.default)
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|     const lastIndex = filteredChildren.length - 1
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|     const adjustedlabelPlacement = progressDot ? 'vertical' : labelPlacement
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|     const classString = {
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|       [prefixCls]: true,
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|       [`${prefixCls}-${direction}`]: true,
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|       [`${prefixCls}-${size}`]: size,
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|       [`${prefixCls}-label-${adjustedlabelPlacement}`]: direction === 'horizontal',
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|       [`${prefixCls}-dot`]: !!progressDot,
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|     }
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|     const stepsProps = {
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|       class: classString,
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|       ref: 'vcStepsRef',
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|       on: this.$listeners,
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|     }
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|     return (
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|       <div {...stepsProps}>
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|         {
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|           filteredChildren.map((child, index) => {
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|             const childProps = getPropsData(child)
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|             const stepProps = {
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|               props: {
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|                 stepNumber: `${index + 1}`,
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|                 prefixCls,
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|                 iconPrefix,
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|                 progressDot: this.progressDot,
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|                 ...childProps,
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|               },
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|               on: getEvents(child),
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|               scopedSlots: $scopedSlots,
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|             }
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|             if (!flexSupported && direction !== 'vertical' && index !== lastIndex) {
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|               stepProps.props.itemWidth = `${100 / lastIndex}%`
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|               stepProps.props.adjustMarginRight = -Math.round(lastStepOffsetWidth / lastIndex + 1)
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|             }
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|             // fix tail color
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|             if (status === 'error' && index === current - 1) {
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|               stepProps.class = `${prefixCls}-next-error`
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|             }
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|             if (!childProps.status) {
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|               if (index === current) {
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|                 stepProps.props.status = status
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|               } else if (index < current) {
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|                 stepProps.props.status = 'finish'
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|               } else {
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|                 stepProps.props.status = 'wait'
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|               }
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|             }
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|             return cloneElement(child, stepProps)
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|           })
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|         }
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|       </div>
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|     )
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|   },
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| }
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| 
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