51 lines
1.9 KiB
Vue
51 lines
1.9 KiB
Vue
<template>
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<div class="aa-numrange" :class="{ 'is-error': !!errorMsg }">
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<input type="number" :value="value[0]" :step="step" :min="min" :max="max"
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:placeholder="placeholder[0]" @input="onMin" />
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<span class="aa-numrange-sep">{{ separator }}</span>
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<input type="number" :value="value[1]" :step="step" :min="min" :max="max"
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:placeholder="placeholder[1]" @input="onMax" />
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<span class="aa-numrange-unit" v-if="unit">{{ unit }}</span>
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<span class="aa-numrange-msg" v-if="errorMsg">{{ errorMsg }}</span>
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</div>
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</template>
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<script>
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export default {
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name: 'AaNumberRangeInput',
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props: {
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value: { type: Array, default: function () { return ['', '']; } },
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step: { type: Number, default: 1 },
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min: { type: Number, default: -Infinity },
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max: { type: Number, default: Infinity },
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separator: { type: String, default: '—' },
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unit: { type: String, default: '' },
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placeholder: { type: Array, default: function () { return ['最小', '最大']; } }
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},
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data: function () { return { errorMsg: '' }; },
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methods: {
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emit: function (arr) { this.$emit('input', arr); },
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onMin: function (e) {
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var arr = [e.target.value, this.value[1]];
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this.validate(arr);
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this.emit(arr);
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},
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onMax: function (e) {
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var arr = [this.value[0], e.target.value];
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this.validate(arr);
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this.emit(arr);
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},
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validate: function (arr) {
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var a = parseFloat(arr[0]), b = parseFloat(arr[1]), err = '';
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if (arr[0] !== '' && (a < this.min || a > this.max)) err = '最小值需在 ' + this.min + '~' + this.max;
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else if (arr[1] !== '' && (b < this.min || b > this.max)) err = '最大值需在 ' + this.min + '~' + this.max;
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else if (arr[0] !== '' && arr[1] !== '' && a > b) err = '最小值不能大于最大值';
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this.errorMsg = err;
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this.$emit('error', err);
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}
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}
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};
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</script>
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<style src="./NumberRangeInput.css"></style>
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