feat: ✨ Rate 评分新增支持半选和触摸滑动选中 (#896)

✅ Closes: #669

docs/component/rate.md

@@ -11,7 +11,6 @@
 ```
 
 ```typescript
-
 const value = ref<number>(1)
 
 function changeValue({ value }) {
@@ -60,6 +59,14 @@ function changeValue({ value }) {
 <wd-rate v-model="value" size="30px" space="10px"/>
 ```
 
+## 允许半选
+
+设置 `allowHalf` 属性。
+
+```html
+<wd-rate v-model="value" allow-half />
+```
+
 ## Attributes
 
 | 参数 | 说明 | 类型 | 可选值 | 默认值 | 最低版本 |
@@ -75,6 +82,7 @@ function changeValue({ value }) {
 | active-icon | 选中的图标类名 | string | - | wd-icon-star-on | - |
 | disabled | 是否禁用 | boolean | - | false | - |
 | disabled-color | 禁用的图标颜色 | string | - | linear-gradient(315deg, rgba(177,177,177,1) 0%,rgba(199,199,199,1) 100%) | - |
+| allow-half | 是否允许半选 | boolean | - | false | $LOWEST_VERSION$ |
 
 ## Events
 

src/pages/rate/Index.vue

@@ -1,7 +1,7 @@
 <!--
  * @Author: weisheng
  * @Date: 2023-07-29 17:03:39
- * @LastEditTime: 2024-03-17 20:19:52
+ * @LastEditTime: 2025-02-13 23:36:41
  * @LastEditors: weisheng
  * @Description: 
  * @FilePath: /wot-design-uni/src/pages/rate/Index.vue
@@ -41,6 +41,10 @@
     <demo-block title="修改size、space">
       <wd-rate v-model="value7" space="10px" size="30px" />
     </demo-block>
+
+    <demo-block title="允许半选">
+      <wd-rate v-model="value8" allow-half />
+    </demo-block>
   </page-wraper>
 </template>
 <script lang="ts" setup>
@@ -53,6 +57,7 @@ const value4 = ref<number>(3)
 const value5 = ref<number>(4)
 const value6 = ref<number>(3)
 const value7 = ref<number>(5)
+const value8 = ref<number>(2.5)
 
 function changeValue1({ value }: any) {
   console.log(value)

src/uni_modules/wot-design-uni/components/wd-rate/index.scss

@@ -9,16 +9,17 @@
   @include e(item) {
     position: relative;
     display: inline-block;
+    touch-action: none; // 禁用默认触摸行为
   }
-  @include e(item-star) {
-    display: inline-block;
-    vertical-align: top;
-
-    @include m(active) {
-      position: absolute;
-      left: 0;
-      top: 0;
-      overflow: hidden;
-    }
+  @include edeep(item-star) {
+    -webkit-background-clip: text !important;
+    color: transparent;
+  }
+  @include e(item-half) {
+    position: absolute;
+    left: 0;
+    top: 0;
+    overflow: hidden;
+    width: 50%;
   }
 }

src/uni_modules/wot-design-uni/components/wd-rate/types.ts

@@ -85,5 +85,12 @@ export const rateProps = {
    * 类型: string
    * 默认值: 'linear-gradient(315deg, rgba(177,177,177,1) 0%,rgba(199,199,199,1) 100%)'
    */
-  disabledColor: makeStringProp('linear-gradient(315deg, rgba(177,177,177,1) 0%,rgba(199,199,199,1) 100%)')
+  disabledColor: makeStringProp('linear-gradient(315deg, rgba(177,177,177,1) 0%,rgba(199,199,199,1) 100%)'),
+
+  /**
+   * 是否允许半选
+   * 类型: boolean
+   * 默认值: false
+   */
+  allowHalf: makeBooleanProp(false)
 }

src/uni_modules/wot-design-uni/components/wd-rate/wd-rate.vue

@@ -1,18 +1,26 @@
 <template>
-  <view :class="`wd-rate ${customClass}`" :style="customStyle">
+  <view :class="`wd-rate ${customClass}`" :style="customStyle" @touchmove="onTouchMove">
     <view
       v-for="(rate, index) in rateList"
       :key="index"
       :data-index="index"
       :style="{ 'margin-right': index == rateList.length - 1 ? 0 : space }"
       class="wd-rate__item"
-      @click="changeRate(index)"
     >
-      <view class="wd-rate__item-star" :style="{ width: size, height: size }">
-        <wd-icon :name="icon" :size="size" :custom-style="iconStyle" />
-      </view>
-      <view class="wd-rate__item-star wd-rate__item-star--active" :style="{ width: rate, height: size }">
-        <wd-icon :name="activeIcon" :size="size" :custom-style="iconActiveStyle" />
+      <wd-icon
+        custom-class="wd-rate__item-star"
+        :name="isActive(rate) ? activeIcon : icon"
+        :size="size"
+        :custom-style="rate === '100%' ? iconActiveStyle : iconStyle"
+        @click="changeRate(index, false)"
+      />
+      <view v-if="props.allowHalf" class="wd-rate__item-half" @click.stop="changeRate(index, true)">
+        <wd-icon
+          custom-class="wd-rate__item-star"
+          :name="isActive(rate) ? activeIcon : icon"
+          :size="size"
+          :custom-style="rate !== '0' ? iconActiveStyle : iconStyle"
+        />
       </view>
     </view>
   </view>
@@ -30,8 +38,10 @@ export default {
 </script>
 <script lang="ts" setup>
 import wdIcon from '../wd-icon/wd-icon.vue'
-import { computed, ref, watch } from 'vue'
+import { computed, getCurrentInstance, ref, watch } from 'vue'
 import { rateProps } from './types'
+import { getRect } from '../common/util'
+const { proxy } = getCurrentInstance() as any
 
 const props = defineProps(rateProps)
 const emit = defineEmits(['update:modelValue', 'change'])
@@ -40,11 +50,11 @@ const rateList = ref<Array<string>>([])
 const activeValue = ref<string>('')
 
 const iconStyle = computed(() => {
-  return `background:${props.color}; -webkit-background-clip: text; color: transparent`
+  return `background:${props.color};`
 })
 
 const iconActiveStyle = computed(() => {
-  return `background:${props.disabled ? props.disabledColor : activeValue.value}; -webkit-background-clip: text; color: transparent`
+  return `background:${props.disabled ? props.disabledColor : activeValue.value};`
 })
 
 watch(
@@ -72,11 +82,16 @@ watch(
   }
 )
 
+// 当前选项是否为激活状态
+const isActive = (rate: string) => {
+  return rate !== '0'
+}
+
 /**
  * @description 计算当前应当展示的rate数量
  */
 function computeRateList() {
-  const { modelValue, num } = props
+  const { modelValue, num, allowHalf } = props
   // value和num都准备好才能计算
   if (modelValue === null || !num) return
   if (typeof modelValue !== 'number') {
@@ -84,13 +99,12 @@ function computeRateList() {
     return
   }
   const tempRateList: string[] = []
-  const fullLength = Math.ceil(modelValue) - 1
+  const fullLength = Math.floor(modelValue)
   for (let i = 0; i < num; i++) {
     if (i < fullLength) {
       tempRateList.push('100%')
-    } else if (i === fullLength) {
-      const rate = modelValue - fullLength > 0.5 ? 1 : 0.5
-      tempRateList.push(rate * 100 + '%')
+    } else if (i === fullLength && allowHalf && modelValue % 1 !== 0) {
+      tempRateList.push('50%')
     } else {
       tempRateList.push('0')
     }
@@ -113,15 +127,32 @@ function computeActiveValue() {
 }
 /**
  * @description 点击icon触发组件的change事件
- * @param Event
  */
-function changeRate(index: number) {
+function changeRate(index: number, isHalf: boolean) {
   if (props.readonly || props.disabled) return
-  emit('update:modelValue', index + 1)
+  const value = isHalf ? index + 0.5 : index + 1
+  emit('update:modelValue', value)
   emit('change', {
-    value: index + 1
+    value
   })
 }
+
+async function onTouchMove(event: TouchEvent) {
+  const { clientX } = event.touches[0]
+  const rateItems = await getRect('.wd-rate__item', true, proxy)
+  const targetIndex = Array.from(rateItems).findIndex((rect) => {
+    return clientX >= rect.left! && clientX <= rect.right!
+  })
+  if (targetIndex !== -1) {
+    const target = rateItems[targetIndex]
+    const itemWidth = target.width!
+    const isHalf = props.allowHalf && clientX - target.left! < itemWidth / 2
+    const value = isHalf ? targetIndex + 0.5 : targetIndex + 1
+    if (value >= 0.5) {
+      changeRate(targetIndex, isHalf)
+    }
+  }
+}
 </script>
 <style lang="scss" scoped>
 @import './index.scss';