132 lines
3.6 KiB
TypeScript
132 lines
3.6 KiB
TypeScript
import { View } from '@tarojs/components'
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import Big from 'big.js'
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import InputX from '../InputX'
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import styles from './index.module.scss'
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import { usePropsValue } from '@/use/useCommon'
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interface params {
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minNum?: number // 最小值
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maxNum?: number // 最大值
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step?: number // 步长
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defaultNum?: number // 默认值
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digits?: number // 多少位小数
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onChange?: (val: number) => void
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onBlue?: (val: number) => void // 失去焦点触发
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onClickBtn?: (val: number) => void
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unit?: string
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disable?: boolean // 是否禁用
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}
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const Counter = ({ minNum = 0, maxNum = 10000, step = 1, digits = 0, defaultNum = 0, onChange: onValueChange, onBlue, onClickBtn, unit = '', disable = false }: params) => {
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const [value, setValue] = usePropsValue<number>({
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value: defaultNum,
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defaultValue: defaultNum,
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onChange: (nextValue) => {
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onValueChange && onValueChange(nextValue)
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},
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})
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// 保留小数
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const formatDigits = (num) => {
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num = `${num}`
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if (num.includes('.') && digits > 0) {
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console.log('num::', num.includes('.'))
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const res = num.split('.')
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const last_num = res[1].substr(0, digits)
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return `${res[0]}.${last_num}`
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}
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return parseFloat(num)
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}
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// 加号
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const onPlus = (event) => {
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event.stopPropagation()
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if (disable) { return false }
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let num_res = Big(value).add(step).toNumber()
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num_res = num_res >= maxNum ? maxNum : num_res
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num_res = formatDigits(num_res)
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setValue(num_res)
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onClickBtn?.(parseFloat(num_res))
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}
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// 减号
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const minus = (event) => {
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event.stopPropagation()
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if (disable) { return false }
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let num_res = Big(value).minus(step).toNumber()
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num_res = num_res < minNum ? minNum : num_res
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setValue(num_res)
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onClickBtn?.(parseFloat(num_res))
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}
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// 检查数据
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const checkData = (val) => {
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const num = parseFloat(val)
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if (num > maxNum) { return maxNum }
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if (num < minNum) { return minNum }
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return val
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}
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const onInputEven = (e) => {
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const res = e.detail.value
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if (res === '') {
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setValue(minNum)
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return minNum
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}
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else if (!Number.isNaN(Number(res))) {
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let count = formatDigits(res)
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count = checkData(count)
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setValue(count as number)
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return count
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}
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else {
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const num = parseFloat(res)
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if (!Number.isNaN(num)) {
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let count = formatDigits(num)
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count = checkData(count)
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setValue(count as number)
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return count
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}
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else {
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setValue(defaultNum)
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return defaultNum
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}
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}
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}
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const onBluerEven = () => {
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const num = parseFloat(String(value))
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console.log('onInputEven res===>', num)
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if (!Number.isNaN(num)) {
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let count = formatDigits(num)
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count = checkData(count)
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setValue(count as number)
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onBlue?.(count as number)
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return count
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}
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else {
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setValue(defaultNum)
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onBlue?.(defaultNum)
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return defaultNum
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}
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}
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const noop = (e) => {
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e.stopPropagation()
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}
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return (
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<View className={styles.main}>
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<View className={styles.reduce} onClick={minus}>
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-
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</View>
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<View className={styles.input} onClick={noop}>
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<InputX value={String(value)} onInput={onInputEven} onBlur={onBluerEven} type="digit" disabled={disable} />
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<View className={styles.unit}>{unit}</View>
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</View>
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<View className={styles.plus} onClick={onPlus}>
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+
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</View>
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</View>
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)
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}
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export default Counter
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