362 lines
8.5 KiB
Vue
362 lines
8.5 KiB
Vue
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<template>
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<view>
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<view ref="uni-rate" class="uni-rate">
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<view class="uni-rate__icon" :class="{'uni-cursor-not-allowed': disabled}"
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:style="{ 'margin-right': marginNumber + 'px' }" v-for="(star, index) in stars" :key="index"
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@touchstart.stop="touchstart" @touchmove.stop="touchmove" @mousedown.stop="mousedown"
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@mousemove.stop="mousemove" @mouseleave="mouseleave">
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<uni-icons :color="color" :size="size" :type="isFill ? 'star-filled' : 'star'" />
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<!-- #ifdef APP-NVUE -->
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<view :style="{ width: star.activeWitch.replace('%','')*size/100+'px'}" class="uni-rate__icon-on">
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<uni-icons style="text-align: left;" :color="disabled?'#ccc':activeColor" :size="size"
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type="star-filled" />
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</view>
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<!-- #endif -->
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<!-- #ifndef APP-NVUE -->
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<view :style="{ width: star.activeWitch}" class="uni-rate__icon-on">
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<uni-icons :color="disabled?disabledColor:activeColor" :size="size" type="star-filled" />
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</view>
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<!-- #endif -->
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</view>
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</view>
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</view>
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</template>
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<script>
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// #ifdef APP-NVUE
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const dom = uni.requireNativePlugin('dom');
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// #endif
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/**
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* Rate 评分
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* @description 评分组件
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* @tutorial https://ext.dcloud.net.cn/plugin?id=33
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* @property {Boolean} isFill = [true|false] 星星的类型，是否为实心类型, 默认为实心
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* @property {String} color 未选中状态的星星颜色，默认为 "#ececec"
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* @property {String} activeColor 选中状态的星星颜色，默认为 "#ffca3e"
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* @property {String} disabledColor 禁用状态的星星颜色，默认为 "#c0c0c0"
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* @property {Number} size 星星的大小
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* @property {Number} value/v-model 当前评分
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* @property {Number} max 最大评分评分数量，目前一分一颗星
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* @property {Number} margin 星星的间距，单位 px
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* @property {Boolean} disabled = [true|false] 是否为禁用状态，默认为 false
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* @property {Boolean} readonly = [true|false] 是否为只读状态，默认为 false
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* @property {Boolean} allowHalf = [true|false] 是否实现半星，默认为 false
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* @property {Boolean} touchable = [true|false] 是否支持滑动手势，默认为 true
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* @event {Function} change uniRate 的 value 改变时触发事件，e={value:Number}
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*/
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export default {
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name: "UniRate",
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props: {
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isFill: {
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// 星星的类型，是否镂空
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type: [Boolean, String],
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default: true
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},
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color: {
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// 星星未选中的颜色
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type: String,
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default: "#ececec"
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},
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activeColor: {
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// 星星选中状态颜色
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type: String,
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default: "#ffca3e"
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},
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disabledColor: {
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// 星星禁用状态颜色
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type: String,
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default: "#c0c0c0"
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},
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size: {
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// 星星的大小
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type: [Number, String],
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default: 24
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},
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value: {
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// 当前评分
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type: [Number, String],
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default: 0
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},
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modelValue: {
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// 当前评分
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type: [Number, String],
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default: 0
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},
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max: {
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// 最大评分
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type: [Number, String],
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default: 5
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},
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margin: {
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// 星星的间距
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type: [Number, String],
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default: 0
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},
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disabled: {
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// 是否可点击
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type: [Boolean, String],
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default: false
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},
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readonly: {
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// 是否只读
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type: [Boolean, String],
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default: false
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},
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allowHalf: {
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// 是否显示半星
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type: [Boolean, String],
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default: false
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},
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touchable: {
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// 是否支持滑动手势
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type: [Boolean, String],
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default: true
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}
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},
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data() {
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return {
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valueSync: "",
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userMouseFristMove: true,
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userRated: false,
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userLastRate: 1
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};
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},
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watch: {
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value(newVal) {
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this.valueSync = Number(newVal);
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},
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modelValue(newVal) {
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this.valueSync = Number(newVal);
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},
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},
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computed: {
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stars() {
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const value = this.valueSync ? this.valueSync : 0;
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const starList = [];
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const floorValue = Math.floor(value);
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const ceilValue = Math.ceil(value);
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for (let i = 0; i < this.max; i++) {
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if (floorValue > i) {
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starList.push({
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activeWitch: "100%"
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});
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} else if (ceilValue - 1 === i) {
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starList.push({
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activeWitch: (value - floorValue) * 100 + "%"
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});
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} else {
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starList.push({
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activeWitch: "0"
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});
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}
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}
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return starList;
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},
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marginNumber() {
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return Number(this.margin)
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}
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},
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created() {
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this.valueSync = Number(this.value || this.modelValue);
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this._rateBoxLeft = 0
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this._oldValue = null
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},
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mounted() {
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setTimeout(() => {
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this._getSize()
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}, 100)
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// #ifdef H5
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this.PC = this.IsPC()
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// #endif
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},
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methods: {
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touchstart(e) {
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// #ifdef H5
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if (this.IsPC()) return
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// #endif
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if (this.readonly || this.disabled) return
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const {
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clientX,
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screenX
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} = e.changedTouches[0]
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// TODO 做一下兼容，只有 Nvue 下才有 screenX，其他平台式 clientX
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this._getRateCount(clientX || screenX)
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},
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touchmove(e) {
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// #ifdef H5
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if (this.IsPC()) return
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// #endif
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if (this.readonly || this.disabled || !this.touchable) return
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const {
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clientX,
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screenX
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} = e.changedTouches[0]
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this._getRateCount(clientX || screenX)
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},
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/**
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* 兼容 PC @tian
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*/
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mousedown(e) {
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// #ifdef H5
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if (!this.IsPC()) return
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if (this.readonly || this.disabled) return
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const {
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clientX,
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} = e
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this.userLastRate = this.valueSync
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this._getRateCount(clientX)
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this.userRated = true
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// #endif
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},
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mousemove(e) {
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// #ifdef H5
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if (!this.IsPC()) return
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if (this.userRated) return
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if (this.userMouseFristMove) {
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console.log('---mousemove----', this.valueSync);
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this.userLastRate = this.valueSync
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this.userMouseFristMove = false
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}
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if (this.readonly || this.disabled || !this.touchable) return
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const {
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clientX,
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} = e
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this._getRateCount(clientX)
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// #endif
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},
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mouseleave(e) {
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// #ifdef H5
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if (!this.IsPC()) return
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if (this.readonly || this.disabled || !this.touchable) return
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if (this.userRated) {
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this.userRated = false
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return
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}
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this.valueSync = this.userLastRate
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// #endif
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},
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// #ifdef H5
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IsPC() {
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var userAgentInfo = navigator.userAgent;
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var Agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
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var flag = true;
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for (let v = 0; v < Agents.length - 1; v++) {
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if (userAgentInfo.indexOf(Agents[v]) > 0) {
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flag = false;
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break;
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}
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}
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return flag;
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},
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// #endif
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/**
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* 获取星星个数
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*/
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_getRateCount(clientX) {
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this._getSize()
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const size = Number(this.size)
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if (isNaN(size)) {
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return new Error('size 属性只能设置为数字')
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}
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const rateMoveRange = clientX - this._rateBoxLeft
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let index = parseInt(rateMoveRange / (size + this.marginNumber))
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index = index < 0 ? 0 : index;
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index = index > this.max ? this.max : index;
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const range = parseInt(rateMoveRange - (size + this.marginNumber) * index);
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let value = 0;
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if (this._oldValue === index && !this.PC) return;
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this._oldValue = index;
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if (this.allowHalf) {
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if (range > (size / 2)) {
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value = index + 1
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} else {
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value = index + 0.5
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}
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} else {
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value = index + 1
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}
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value = Math.max(0.5, Math.min(value, this.max))
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this.valueSync = value
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this._onChange()
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},
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/**
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* 触发动态修改
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*/
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_onChange() {
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this.$emit("input", this.valueSync);
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this.$emit("update:modelValue", this.valueSync);
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this.$emit("change", {
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value: this.valueSync
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});
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},
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/**
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* 获取星星距离屏幕左侧距离
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*/
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_getSize() {
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// #ifndef APP-NVUE
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uni.createSelectorQuery()
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.in(this)
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.select('.uni-rate')
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.boundingClientRect()
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.exec(ret => {
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if (ret) {
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this._rateBoxLeft = ret[0].left
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}
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})
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// #endif
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// #ifdef APP-NVUE
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dom.getComponentRect(this.$refs['uni-rate'], (ret) => {
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const size = ret.size
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if (size) {
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this._rateBoxLeft = size.left
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}
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})
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// #endif
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}
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}
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};
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</script>
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<style lang="scss">
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.uni-rate {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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line-height: 1;
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font-size: 0;
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flex-direction: row;
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/* #ifdef H5 */
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cursor: pointer;
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/* #endif */
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}
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.uni-rate__icon {
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position: relative;
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line-height: 1;
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font-size: 0;
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}
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.uni-rate__icon-on {
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overflow: hidden;
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position: absolute;
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top: 0;
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left: 0;
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line-height: 1;
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text-align: left;
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}
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.uni-cursor-not-allowed {
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/* #ifdef H5 */
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cursor: not-allowed !important;
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/* #endif */
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}
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</style>
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