LAPTOP-D7TKRI82\邓
5 years ago
3 changed files with 297 additions and 8 deletions
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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" |
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:style="{ 'margin-right': margin + 'px' }" |
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v-for="(star, index) in stars" :key="index" |
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@touchstart.stop="touchstart" |
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@touchmove.stop="touchmove"> |
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<text class="le lf-icon-xingxing-shi" :style="{'color': color, 'font-size': size +'px'}" v-if="isFill"></text> |
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<text class="le lf-icon-xingxing-kong" :style="{'color': color, 'font-size': size +'px'}" v-else></text> |
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|
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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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<text class="le lf-icon-xingxing-shi" :style="{'text-align': 'left', 'color': disabled?'#ccc':activeColor, 'font-size': size +'px'}"></text> |
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</view> |
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<!-- #endif --> |
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|
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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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<text class="le lf-icon-xingxing-shi" :style="{'color': disabled?disabledColor:activeColor, 'font-size': size +'px'}"></text> |
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</view> |
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<!-- #endif --> |
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</view> |
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<view class="uni-num" :style="{'color': activeColor}" v-if="number && valueSync">{{ valueSync }}</view> |
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</view> |
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</view> |
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</template> |
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|
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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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|
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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: 1 |
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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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number: { |
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// 是否显示数字，显示的是当前的value平分 |
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type: Boolean, |
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default: false |
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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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}; |
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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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}, |
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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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}, |
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created() { |
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this.valueSync = Number(this.value); |
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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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}, |
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methods: { |
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touchstart(e) { |
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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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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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* 获取星星个数 |
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*/ |
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_getRateCount(clientX) { |
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const size = Number(this.size) |
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if(size === NaN){ |
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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.margin)) |
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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.margin) * index); |
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let value = 0; |
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if (this._oldValue === index) return; |
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this._oldValue = index; |
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|
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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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|
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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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/** |
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* 触发动态修改 |
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*/ |
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_onChange() { |
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|
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this.$emit("input", this.valueSync); |
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this.$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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|
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<style lang="scss" scoped> |
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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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} |
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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-num{ |
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font-size: 28rpx; |
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margin-left: 10rpx; |
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display: flex; |
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align-items: center; |
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} |
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</style> |
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