<template>
|
<nut-input type="number" :formatter="formatter" formatTrigger="onBlur" v-model="innerModelValue">
|
<template #right>
|
<slot name="right"></slot>
|
</template>
|
</nut-input>
|
</template>
|
|
<script setup lang="ts">
|
import { computed } from 'vue';
|
|
defineOptions({
|
name: 'NumberInput',
|
});
|
|
type Props = {
|
min?: number;
|
max?: number;
|
precision?: number;
|
modelValue?: number | string;
|
};
|
|
const props = withDefaults(defineProps<Props>(), {
|
max: Math.pow(2, 53) - 1,
|
});
|
|
const emit = defineEmits<{
|
(e: 'update:modelValue', val: string | number): void;
|
}>();
|
|
const innerModelValue = computed({
|
get() {
|
return props.modelValue + '';
|
},
|
set(val) {
|
emit('update:modelValue', val);
|
},
|
});
|
|
function formatter(value: string): string {
|
const newVal = value !== '' ? Number.parseFloat(value) : '';
|
if (Number.isNaN(newVal)) {
|
return '';
|
}
|
if (newVal && newVal > props.max) {
|
return `${toPrecision(props.max)}`;
|
}
|
if (props.min !== undefined && !!`${newVal}` && (newVal as number) < props.min) {
|
return `${toPrecision(props.min)}`;
|
}
|
return newVal !== '' ? `${toPrecision(newVal)}` : newVal;
|
}
|
|
function toPrecision(num: number) {
|
if (props.precision) {
|
if (props.precision === 0) return Math.round(num);
|
let snum = String(num);
|
const pointPos = snum.indexOf('.');
|
if (pointPos === -1) return num;
|
const nums = snum.replace('.', '').split('');
|
const datum = nums[pointPos + props.precision];
|
if (!datum) return num;
|
const length = snum.length;
|
if (snum.charAt(length - 1) === '5') {
|
snum = `${snum.slice(0, Math.max(0, length - 1))}6`;
|
}
|
return Number(snum).toFixed(props.precision);
|
}
|
return String(num);
|
}
|
</script>
|
