fix: 🐛 修复 InputNumber 设置了precision后无法输入小数点的问题 (#886)

✅ Closes: #878

Author: Moonofweisheng

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

@@ -1,7 +1,7 @@
 /*
  * @Author: weisheng
  * @Date: 2024-03-15 20:40:34
- * @LastEditTime: 2024-12-31 00:33:21
+ * @LastEditTime: 2025-02-11 18:38:54
  * @LastEditors: weisheng
  * @Description:
  * @FilePath: /wot-design-uni/src/uni_modules/wot-design-uni/components/wd-input-number/types.ts
@@ -37,7 +37,7 @@ export const inputNumberProps = {
   /**
    * 数值精度
    */
-  precision: makeNumberProp(0),
+  precision: makeNumericProp(0),
   /**
    * 是否禁用
    */

src/uni_modules/wot-design-uni/components/wd-input-number/wd-input-number.vue

@@ -1,8 +1,10 @@
 <template>
   <view :class="`wd-input-number ${customClass} ${disabled ? 'is-disabled' : ''} ${withoutInput ? 'is-without-input' : ''}`" :style="customStyle">
+    <!-- 减号按钮 -->
     <view :class="`wd-input-number__action ${minDisabled || disableMinus ? 'is-disabled' : ''}`" @click="sub">
       <wd-icon name="decrease" custom-class="wd-input-number__action-icon"></wd-icon>
     </view>
+    <!-- 输入框 -->
     <view v-if="!withoutInput" class="wd-input-number__inner" @click.stop="">
       <input
         class="wd-input-number__input"
@@ -18,6 +20,7 @@
       />
       <view class="wd-input-number__input-border"></view>
     </view>
+    <!-- 加号按钮 -->
     <view :class="`wd-input-number__action ${maxDisabled || disablePlus ? 'is-disabled' : ''}`" @click="add">
       <wd-icon name="add" custom-class="wd-input-number__action-icon"></wd-icon>
     </view>
@@ -60,22 +63,26 @@ const maxDisabled = computed(() => {
   return disabled || Number(value) >= max || changeStep(value, step) > max
 })
 
+// 监听 modelValue 变化
 watch(
   () => props.modelValue,
   (value) => {
     updateValue(value)
   }
 )
 
+// 监听 max, min, precision 变化
 watch([() => props.max, () => props.min, () => props.precision], () => {
   const value = formatValue(inputValue.value)
   updateValue(value)
 })
 
+// 判断两个值是否相等
 function isValueEqual(value1: number | string, value2: number | string) {
   return isEqual(String(value1), String(value2))
 }
 
+// 获取初始值
 function getInitValue() {
   const formatted = formatValue(props.modelValue)
   if (!isValueEqual(formatted, props.modelValue)) {
@@ -84,10 +91,13 @@ function getInitValue() {
   return formatted
 }
 
+// 将值转换为指定精度
 function toPrecision(value: number) {
-  return Number(parseFloat(`${Math.round(value * Math.pow(10, props.precision)) / Math.pow(10, props.precision)}`).toFixed(props.precision))
+  const precision = Number(props.precision)
+  return Number(parseFloat(`${Math.round(value * Math.pow(10, precision)) / Math.pow(10, precision)}`).toFixed(precision))
 }
 
+// 获取值的精度
 function getPrecision(value?: number) {
   if (!isDef(value)) return 0
   const valueString = value.toString()
@@ -99,12 +109,14 @@ function getPrecision(value?: number) {
   return precision
 }
 
+// 严格按照步进值递增或递减
 function toStrictlyStep(value: number | string) {
   const stepPrecision = getPrecision(props.step)
   const precisionFactory = Math.pow(10, stepPrecision)
   return (Math.round(Number(value) / props.step) * precisionFactory * props.step) / precisionFactory
 }
 
+// 更新值
 function updateValue(value: string | number, fromUser: boolean = false) {
   if (isValueEqual(value, inputValue.value)) {
     return
@@ -130,38 +142,46 @@ function updateValue(value: string | number, fromUser: boolean = false) {
   }
 }
 
+// 根据步进值改变值
 function changeStep(val: string | number, step: number) {
   val = Number(val)
   if (isNaN(val)) {
     return props.min
   }
-  const precisionFactory = Math.pow(10, props.precision)
-  return toPrecision((val * precisionFactory + step * precisionFactory) / precisionFactory)
+  const precision = Math.max(getPrecision(val), getPrecision(step))
+  const precisionFactor = Math.pow(10, precision)
+  return toPrecision((val * precisionFactor + step * precisionFactor) / precisionFactor)
 }
 
+// 改变值
 function changeValue(step: number) {
   if ((step < 0 && (minDisabled.value || props.disableMinus)) || (step > 0 && (maxDisabled.value || props.disablePlus))) return
   const value = changeStep(inputValue.value, step)
   updateValue(value, true)
 }
 
+// 减少值
 function sub() {
   changeValue(-props.step)
 }
 
+// 增加值
 function add() {
   changeValue(props.step)
 }
 
+// 处理输入事件
 function handleInput(event: any) {
-  const value = event.detail.value || ''
+  let value = event.detail.value || ''
   updateValue(value, true)
 }
 
+// 处理聚焦事件
 function handleFocus(event: any) {
   emit('focus', event.detail)
 }
 
+// 处理失焦事件
 function handleBlur(event: any) {
   const value = event.detail.value || ''
   updateValue(value, true)
@@ -170,6 +190,7 @@ function handleBlur(event: any) {
   })
 }
 
+// 格式化值
 function formatValue(value: string | number) {
   if (props.allowNull && (!isDef(value) || value === '')) {
     return ''
@@ -188,7 +209,7 @@ function formatValue(value: string | number) {
   formatted = Math.min(Math.max(formatted, props.min), props.max)
 
   if (isDef(props.precision)) {
-    formatted = Number(formatted.toFixed(props.precision))
+    formatted = toPrecision(formatted)
   }
 
   return formatted