You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
276 lines
7.7 KiB
276 lines
7.7 KiB
3 years ago
|
<template>
|
||
|
|
<view class="u-rate" :id="elId" @touchmove.stop.prevent="touchMove">
|
||
|
|
<view class="u-star-wrap" v-for="(item, index) in count" :key="index" :class="[elClass]">
|
||
|
|
<u-icon
|
||
|
|
:name="activeIndex > index ? elActiveIcon : inactiveIcon"
|
||
|
|
@click="click(index + 1, $event)"
|
||
|
|
:color="activeIndex > index ? elActiveColor : inactiveColor"
|
||
|
|
:custom-style="{
|
||
|
|
fontSize: size + 'rpx',
|
||
|
|
padding: `0 ${gutter / 2 + 'rpx'}`
|
||
|
|
}"
|
||
|
|
:custom-prefix="customPrefix"
|
||
|
|
:show-decimal-icon="showDecimalIcon(index)"
|
||
|
|
:percent="decimal"
|
||
|
|
:inactive-color="inactiveColor"
|
||
|
|
></u-icon>
|
||
|
|
</view>
|
||
|
|
</view>
|
||
|
|
</template>
|
||
|
|
|
||
|
|
<script>/**
|
||
|
|
* rate 评分
|
||
|
|
* @description 该组件一般用于满意度调查，星型评分的场景
|
||
|
|
* @tutorial https://www.uviewui.com/components/rate.html
|
||
|
|
* @property {String Number} count 最多可选的星星数量（默认5）
|
||
|
|
* @property {String Number} current 默认选中的星星数量（默认0）
|
||
|
|
* @property {Boolean} disabled 是否禁止用户操作（默认false）
|
||
|
|
* @property {String Number} size 星星的大小，单位rpx（默认32）
|
||
|
|
* @property {String} inactive-color 未选中星星的颜色（默认#b2b2b2）
|
||
|
|
* @property {String} active-color 选中的星星颜色（默认#FA3534）
|
||
|
|
* @property {String} active-icon 选中时的图标名，只能为uView的内置图标（默认star-fill）
|
||
|
|
* @property {String} inactive-icon 未选中时的图标名，只能为uView的内置图标（默认star）
|
||
|
|
* @property {String} gutter 星星之间的距离（默认10）
|
||
|
|
* @property {String Number} min-count 最少选中星星的个数（默认0）
|
||
|
|
* @property {Boolean} allow-half 是否允许半星选择（默认false）
|
||
|
|
* @event {Function} change 选中的星星发生变化时触发
|
||
|
|
* @example <u-rate :count="count" :current="2"></u-rate>
|
||
|
|
*/
|
||
|
|
|
||
|
|
export default {
|
||
|
|
name: 'u-rate',
|
||
|
|
props: {
|
||
|
|
// 用于v-model双向绑定选中的星星数量
|
||
|
|
// 1.4.5版新增
|
||
|
|
value: {
|
||
|
|
type: [Number, String],
|
||
|
|
default: -1
|
||
|
|
},
|
||
|
|
// 要显示的星星数量
|
||
|
|
count: {
|
||
|
|
type: [Number, String],
|
||
|
|
default: 5
|
||
|
|
},
|
||
|
|
// 当前需要默认选中的星星(选中的个数)
|
||
|
|
// 1.4.5后通过value双向绑定，不再建议使用此参数
|
||
|
|
current: {
|
||
|
|
type: [Number, String],
|
||
|
|
default: 0
|
||
|
|
},
|
||
|
|
// 是否不可选中
|
||
|
|
disabled: {
|
||
|
|
type: Boolean,
|
||
|
|
default: false
|
||
|
|
},
|
||
|
|
// 星星的大小，单位rpx
|
||
|
|
size: {
|
||
|
|
type: [Number, String],
|
||
|
|
default: 32
|
||
|
|
},
|
||
|
|
// 未选中时的颜色
|
||
|
|
inactiveColor: {
|
||
|
|
type: String,
|
||
|
|
default: '#b2b2b2'
|
||
|
|
},
|
||
|
|
// 选中的颜色
|
||
|
|
activeColor: {
|
||
|
|
type: String,
|
||
|
|
default: '#FA3534'
|
||
|
|
},
|
||
|
|
// 星星之间的间距，单位rpx
|
||
|
|
gutter: {
|
||
|
|
type: [Number, String],
|
||
|
|
default: 10
|
||
|
|
},
|
||
|
|
// 最少能选择的星星个数
|
||
|
|
minCount: {
|
||
|
|
type: [Number, String],
|
||
|
|
default: 0
|
||
|
|
},
|
||
|
|
// 是否允许半星(功能尚未实现)
|
||
|
|
allowHalf: {
|
||
|
|
type: Boolean,
|
||
|
|
default: false
|
||
|
|
},
|
||
|
|
// 选中时的图标(星星)
|
||
|
|
activeIcon: {
|
||
|
|
type: String,
|
||
|
|
default: 'star-fill'
|
||
|
|
},
|
||
|
|
// 未选中时的图标(星星)
|
||
|
|
inactiveIcon: {
|
||
|
|
type: String,
|
||
|
|
default: 'star'
|
||
|
|
},
|
||
|
|
// 自定义扩展前缀，方便用户扩展自己的图标库
|
||
|
|
customPrefix: {
|
||
|
|
type: String,
|
||
|
|
default: 'uicon'
|
||
|
|
},
|
||
|
|
colors: {
|
||
|
|
type: Array,
|
||
|
|
default() {
|
||
|
|
return []
|
||
|
|
}
|
||
|
|
},
|
||
|
|
icons: {
|
||
|
|
type: Array,
|
||
|
|
default() {
|
||
|
|
return []
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
data() {
|
||
|
|
return {
|
||
|
|
// 生成一个唯一id，否则一个页面多个评分组件，会造成冲突
|
||
|
|
elId: this.$u.guid(),
|
||
|
|
elClass: this.$u.guid(),
|
||
|
|
starBoxLeft: 0, // 评分盒子左边到屏幕左边的距离，用于滑动选择时计算距离
|
||
|
|
// 当前激活的星星的index，如果存在value，优先使用value，因为它可以双向绑定(1.4.5新增)
|
||
|
|
activeIndex: this.value != -1 ? this.value : this.current,
|
||
|
|
starWidth: 0, // 每个星星的宽度
|
||
|
|
starWidthArr: [] //每个星星最右边到组件盒子最左边的距离
|
||
|
|
}
|
||
|
|
},
|
||
|
|
watch: {
|
||
|
|
current(val) {
|
||
|
|
this.activeIndex = val
|
||
|
|
},
|
||
|
|
value(val) {
|
||
|
|
this.activeIndex = val
|
||
|
|
}
|
||
|
|
},
|
||
|
|
computed: {
|
||
|
|
decimal() {
|
||
|
|
if (this.disabled) {
|
||
|
|
return this.activeIndex * 100 % 100
|
||
|
|
} else if (this.allowHalf) {
|
||
|
|
return 50
|
||
|
|
}
|
||
|
|
},
|
||
|
|
elActiveIcon() {
|
||
|
|
const len = this.icons.length
|
||
|
|
// 此处规则类似于下方的elActiveColor参数，都是根据一定的规则，显示不同的图标
|
||
|
|
// 结果可能如此：icons参数传递了3个图标，当选中两个时，用第一个图标，4个时，用第二个图标
|
||
|
|
// 第三个时，用第三个图标作为激活的图标
|
||
|
|
if (len && len <= this.count) {
|
||
|
|
const step = Math.round(this.activeIndex / Math.round(this.count / len))
|
||
|
|
if (step < 1) return this.icons[0]
|
||
|
|
if (step > len) return this.icons[len - 1]
|
||
|
|
return this.icons[step - 1]
|
||
|
|
}
|
||
|
|
return this.activeIcon
|
||
|
|
},
|
||
|
|
elActiveColor() {
|
||
|
|
const len = this.colors.length
|
||
|
|
// 如果有设置colors参数(此参数用于将图标分段，比如一共5颗星，colors传3个颜色值，那么根据一定的规则，2颗星可能为第一个颜色
|
||
|
|
// 4颗星为第二个颜色值，5颗星为第三个颜色值)
|
||
|
|
if (len && len <= this.count) {
|
||
|
|
const step = Math.round(this.activeIndex / Math.round(this.count / len))
|
||
|
|
if (step < 1) return this.colors[0]
|
||
|
|
if (step > len) return this.colors[len - 1]
|
||
|
|
return this.colors[step - 1]
|
||
|
|
}
|
||
|
|
return this.activeColor
|
||
|
|
}
|
||
|
|
},
|
||
|
|
methods: {
|
||
|
|
// 获取评分组件盒子的布局信息
|
||
|
|
getElRectById() {
|
||
|
|
// uView封装的获取节点的方法，详见文档
|
||
|
|
this.$uGetRect('#' + this.elId).then(res => {
|
||
|
|
this.starBoxLeft = res.left
|
||
|
|
})
|
||
|
|
},
|
||
|
|
// 获取单个星星的尺寸
|
||
|
|
getElRectByClass() {
|
||
|
|
// uView封装的获取节点的方法，详见文档
|
||
|
|
this.$uGetRect('.' + this.elClass).then(res => {
|
||
|
|
this.starWidth = res.width
|
||
|
|
// 把每个星星右边到组件盒子左边的距离放入数组中
|
||
|
|
for (let i = 0; i < this.count; i++) {
|
||
|
|
this.starWidthArr[i] = (i + 1) * this.starWidth
|
||
|
|
}
|
||
|
|
})
|
||
|
|
},
|
||
|
|
// 手指滑动
|
||
|
|
touchMove(e) {
|
||
|
|
if (this.disabled) {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
if (!e.changedTouches[0]) {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
const movePageX = e.changedTouches[0].pageX
|
||
|
|
// 滑动点相对于评分盒子左边的距离
|
||
|
|
const distance = movePageX - this.starBoxLeft
|
||
|
|
|
||
|
|
// 如果滑动到了评分盒子的左边界，就设置为0星
|
||
|
|
if (distance <= 0) {
|
||
|
|
this.activeIndex = 0
|
||
|
|
}
|
||
|
|
// 滑动的距离，相当于多少颗星星
|
||
|
|
let index = Math.ceil(distance / this.starWidth)
|
||
|
|
this.activeIndex = index > this.count ? this.count : index
|
||
|
|
// 对最少颗星星的限制
|
||
|
|
if (this.activeIndex < this.minCount) this.activeIndex = this.minCount
|
||
|
|
this.emitEvent()
|
||
|
|
},
|
||
|
|
// 通过点击，直接选中
|
||
|
|
click(index, e) {
|
||
|
|
if (this.disabled) {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
// 半星选择，尚未实现
|
||
|
|
if (this.allowHalf) {
|
||
|
|
}
|
||
|
|
// 对第一个星星特殊处理，只有一个的时候，点击可以取消，否则无法作0星评价
|
||
|
|
if (index == 1) {
|
||
|
|
if (this.activeIndex == 1) {
|
||
|
|
this.activeIndex = 0
|
||
|
|
} else {
|
||
|
|
this.activeIndex = 1
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
this.activeIndex = index
|
||
|
|
}
|
||
|
|
// 对最少颗星星的限制
|
||
|
|
if (this.activeIndex < this.minCount) this.activeIndex = this.minCount
|
||
|
|
this.emitEvent()
|
||
|
|
},
|
||
|
|
// 发出事件
|
||
|
|
emitEvent() {
|
||
|
|
// 发出change事件
|
||
|
|
this.$emit('change', this.activeIndex)
|
||
|
|
// 同时修改双向绑定的value的值
|
||
|
|
if (this.value != -1) {
|
||
|
|
this.$emit('input', this.activeIndex)
|
||
|
|
}
|
||
|
|
},
|
||
|
|
showDecimalIcon(index) {
|
||
|
|
return this.disabled && parseInt(this.activeIndex) === index
|
||
|
|
}
|
||
|
|
},
|
||
|
|
mounted() {
|
||
|
|
this.getElRectById()
|
||
|
|
this.getElRectByClass()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<style scoped lang="scss">
|
||
|
|
@import "../../libs/css/style.components.scss";
|
||
|
|
|
||
|
|
.u-rate {
|
||
|
|
display: -webkit-inline-flex;
|
||
|
|
display: inline-flex;
|
||
|
|
align-items: center;
|
||
|
|
margin: 0;
|
||
|
|
padding: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
.u-icon {
|
||
|
|
box-sizing: border-box;
|
||
|
|
}
|
||
|
|
</style>
|