124 lines
2.6 KiB
Vue
124 lines
2.6 KiB
Vue
<template>
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<ul
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:class="classes"
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@mouseleave="onMouseLeave">
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<template v-for="i in count">
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<Star
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ref="stars"
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:index="i - 1"
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:disabled="disabled"
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:prefix-cls="`${prefixCls}-star`"
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:allowHalf="allowHalf"
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:value="hoverValue === undefined ? stateValue : hoverValue"
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@click="onClick"
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@hover="onHover"
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:key="i - 1">
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<template slot-scope="props">
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<slot>
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<span>{{character}}</span>
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</slot>
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</template>
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</Star>
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</template>
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</ul>
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</template>
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<script>
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import Star from './Star.vue'
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import Icon from '../icon'
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import { getOffsetLeft } from './util'
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export default {
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name: 'Rate',
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props: {
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prefixCls: {
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type: String,
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default: 'ant-rate',
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},
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count: {
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type: Number,
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default: 5,
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},
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value: Number,
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defaultValue: {
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type: Number,
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default: 0,
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},
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allowHalf: {
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type: Boolean,
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default: false,
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},
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disabled: {
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type: Boolean,
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default: false,
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},
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character: {
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type: String,
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default: '★',
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},
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},
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data () {
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const { value, defaultValue } = this
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const reValue = value === undefined ? defaultValue : value
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return {
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hoverValue: undefined,
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stateValue: reValue,
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}
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},
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computed: {
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classes () {
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const { prefixCls, disabled } = this
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return {
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[`${prefixCls}`]: true,
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[`${prefixCls}-disabled`]: disabled,
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}
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},
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},
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methods: {
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onClick (event, index) {
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const value = this.getStarValue(index, event.pageX)
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if (this.value === undefined) {
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this.stateValue = value
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}
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this.onMouseLeave()
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this.$emit('input', value)
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this.$emit('change', value)
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},
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onHover (event, index) {
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const value = this.getStarValue(index, event.pageX)
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this.hoverValue = value
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this.$emit('hover-change', value)
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},
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getStarDOM (index) {
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return this.$refs.stars[index].$el
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},
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getStarValue (index, x) {
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const { allowHalf, getStarDOM } = this
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let value = index + 1
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if (allowHalf) {
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const leftEdge = getOffsetLeft(getStarDOM(0))
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const width = getOffsetLeft(getStarDOM(1)) - leftEdge
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if ((x - leftEdge - width * index) < width / 2) {
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value -= 0.5
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}
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}
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return value
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},
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onMouseLeave () {
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if (this.disabled) return
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this.hoverValue = undefined
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this.$emit('hover-change')
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},
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},
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watch: {
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value (val) {
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this.stateValue = val
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},
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},
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components: {
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Star,
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Icon,
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},
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}
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</script>
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