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App.k12.Parents/uni_modules/uni-rate-x/components/uni-rate/uni-rate.uvue
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tanxin 4c6243a274 Initial commit
2026-10-29 10:08:39 +08:00

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<template>
<!-- TODO Android/iOS平台不支持裁剪显示半个文字，高性能场景包裹一层view不合适，需要等App平台解决-->
<text v-if="props.full!=true" class="active-color" :class="props.starActiveClass ?? ''" :style="props.starActiveStyle ?? ''">{{ stars }}</text> <!-- 高性能，单层，只读，不显示灰星，不支持小数。必须给value-->
<view v-else
<!-- #ifdef MP -->
:id="containerId"
<!-- #endif -->
style="position: relative;align-self: flex-start;" @click="onTap">
<text class="stars-pos gray-stars" style="white-space: nowrap;" :class="props.starClass ?? ''" :style="props.starStyle ?? ''">{{ stars }}</text> <!-- 背景灰星-->
<!-- Android/iOS平台不支持裁剪显示半个文字，需通过包裹一层view裁剪实现 -->
<view class="stars-pos active-init-width" :style="'width:'+calculatedWidth">
<text v-if="props.full" class="active-color" :class="props.starActiveClass ?? ''"
:style="'white-space: nowrap; align-self: flex-start;' + props.starStyle + ';' + props.starActiveStyle">★★★★★</text>
</view>
<!-- 前景亮星，宽度根据value变化-->
</view>
</template>
<script setup lang="ts">
/**
* Rate 评分
* @description 评分组件
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
defineOptions({
externalClasses: ['star-class', 'star-active-class']
})
const props = defineProps<{
/**
* @description 当前评分，取值范围 0~5 的数字
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
value?: number,
/**
* @description v-model 绑定值，支持双向绑定，优先级高于 value
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
modelValue?: number,
/**
* @description 是否显示完整 5 颗星。为 true 时用灰星填充未选中位置；为 false 时仅显示亮星，性能更高但不支持点击交互
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
full?: boolean,
/**
* @description 是否只读，为 true 时不响应点击评分（full 为 false 时始终只读）
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
readonly?: boolean,
/**
* @description 灰星是否使用镂空样式（☆），为 false 时使用实心灰星（★）
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
plain?: boolean,
/**
* @description 灰星（未选中）的自定义样式类
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
starClass?: string.ClassString,
/**
* @description 灰星（未选中）的内联样式
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
starStyle?: string
/**
* @description 亮星（选中）的自定义样式类
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
starActiveClass?: string.ClassString,
/**
* @description 亮星（选中）的内联样式
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
starActiveStyle?: string
}>()
// 计算星星显示
const stars = computed(() => {
if (props.full!=true) {
const value = Math.max(0, Math.min(5, props.value ?? 0))
return '★'.repeat(Math.round(value)) //返回亮星数量
} else {
return props.plain == true ? '☆'.repeat(5) : '★'.repeat(5) //返回灰星数量
}
})
// 问题：props.full != true 时，下面的Script其实都没有意义，但却需要执行。但vue里又无法用if包裹下面的代码，不灵活
const emit = defineEmits<{
/**
* @description 评分变化事件，参数为评分值，类型为 number
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
change: [value: number]
/**
* @description v-model 绑定值变化事件，参数为评分值，类型为 number
* @uniPlatform {
* "app": {
* "android": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.21"
* },
* "ios": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.11"
* },
* "harmony": {
* "uniVer": "x",
* "unixVer": "5.07",
* "unixVaporVer": "5.07"
* }
* },
* "mp": {
* "weixin": {
* "uniVer": "x",
* "unixVer": "5.07"
* },
* "alipay": {
* "uniVer": "x",
* "unixVer": "5.31"
* }
* },
* "web": {
* "uniVer": "x",
* "unixVer": "5.07"
* }
* }
*/
'update:modelValue': [value: number]
}>()
// #ifdef MP
const instance = getCurrentInstance()
const containerId = `uni_rate_${instance?.uid || 'default'}`
// #endif
// 响应式数据 - 优先使用modelValue，其次使用value
const currentValue = ref<number>(0)
currentValue.value = props.modelValue ?? props.value ?? 0
// 安全初始化函数
/* function safeInitValue() {
const initialValue = props.modelValue ?? props.value ?? 0
if (typeof initialValue === 'number' && !isNaN(initialValue)) {
currentValue.value = initialValue
} else {
currentValue.value = 0
}
}
// 初始化
safeInitValue() */
// 监听props变化
watch(() : number | null => {
return props.modelValue ?? props.value ?? null
}, (newValue : number | null) => {
if (newValue != null && typeof newValue === 'number' && !isNaN(newValue as number)) {
currentValue.value = newValue as number
}
}, { immediate: true })
// 计算点亮层的宽度
const calculatedWidth = computed(() => {
// 确保在 0 到 5 之间
const value = currentValue.value
const rate = Math.max(0, Math.min(5, value))
// console.log('rate: ',rate);
// TODO Android端小数无法正常渲染，不是宽度计算的问题
return `${(rate / 5) * 100}%`
})
// #ifndef MP
// 处理点击事件
function onTap(event: UniPointerEvent) : void {
// 如果是禁用模式，不处理点击
if (props.readonly == true) {
return
}
// 获取点击位置 - 优化的事件处理
let clickX = event.x
// 获取容器宽度 - 使用 currentTarget 获取绑定事件的 view 容器，而不是被点击的 text 元素
let containerWidth = 0
try {
if (event.currentTarget?.offsetWidth != null && (event.currentTarget as UniElement).offsetWidth > 0) {
containerWidth = (event.currentTarget as UniElement).offsetWidth
}
} catch (e) {
// 忽略错误，使用默认值
console.log('e: ',e);
}
// console.log("containerWidth:" + containerWidth);
// 计算点击的是第几颗星（从0开始）
const finalValue = Math.round(clickX / containerWidth * 5)
// console.log('finalValue: ',finalValue);
// 计算每颗星的宽度
// const starWidth = containerWidth / 5
// 计算点击位置在星内的偏移量
// const offsetInStar = (clickX % starWidth) / starWidth
/* // 根据偏移量决定是整星还是半星
let newValue: number
if (offsetInStar <= 0.5) {
newValue = starIndex + 0.5 // 半星
} else {
newValue = starIndex + 1 // 整星
}
// 确保值在有效范围内 */
// const finalValue = Math.max(0.5, Math.min(5, starIndex + 1))
// 更新值
currentValue.value = finalValue
// 触发change事件
emit('change', finalValue)
// 触发v-model更新
emit('update:modelValue', finalValue)
}
// #endif
// #ifdef MP
async function onTap(event: UniPointerEvent) : Promise<void> {
if (props.readonly == true) {
return
}
const rect = await uni.getElementById(containerId)?.getBoundingClientRectAsync()
if (rect == null || rect.width <= 0) {
return
}
const localX = event.clientX - rect.left
if (!isFinite(localX)) {
return
}
const clampedX = Math.max(0, Math.min(rect.width, localX))
const finalValue = Math.max(0, Math.min(5, Math.round(clampedX / rect.width * 5)))
currentValue.value = finalValue
emit('change', finalValue)
emit('update:modelValue', finalValue)
}
// #endif
// TODO 接入form表单规范，可以submit
</script>
<style>
.stars-pos {
/* 确保两个 star 的位置重叠 */
position: absolute;
top: 0;
left: 0;
overflow: hidden; /* 关键：裁剪点亮层 */
}
.gray-stars {
color: #ccc; /* 未点亮颜色 */
position: relative; /* 确保底层可见 */
}
.active-init-width {
width: 0%; /* full时高亮星的初始宽度 */
}
.active-color{
color: #ffca3e; /* 点亮颜色 */
}
</style>
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