102 lines
2.6 KiB
Plaintext
102 lines
2.6 KiB
Plaintext
<template>
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<div>
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<div class="aa-code" @paste="onPaste">
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<div
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v-for="(c, i) in cells"
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:key="i"
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class="aa-code-cell"
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:class="{ 'is-focus': focusedIndex === i, 'is-filled': !!cells[i], 'is-masked': masked }"
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>
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<input
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ref="inputs"
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class="aa-code-input"
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:value="cells[i]"
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maxlength="1"
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inputmode="numeric"
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:aria-label="'验证码第 ' + (i + 1) + ' 位'"
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@focus="focusedIndex = i"
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@input="onInput($event, i)"
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@keydown="onKeydown($event, i)"
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/>
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</div>
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</div>
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<div class="aa-code-tip" :class="{ error: hasError }">{{ tip }}</div>
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</div>
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</template>
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<script setup>
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import { ref, watch } from 'vue';
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const props = defineProps({
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modelValue: { type: String, default: '' },
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length: { type: Number, default: 6 },
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masked: { type: Boolean, default: false },
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tip: { type: String, default: '' },
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hasError: { type: Boolean, default: false }
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});
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const emit = defineEmits(['update:modelValue', 'change']);
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const inputs = ref([]);
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const focusedIndex = ref(-1);
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function buildCells(v) {
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const arr = (v || '').split('').slice(0, props.length);
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while (arr.length < props.length) arr.push('');
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return arr;
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}
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const cells = ref(buildCells(props.modelValue));
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watch(
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() => props.modelValue,
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(v) => { cells.value = buildCells(v); }
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);
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watch(
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() => props.length,
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() => { cells.value = buildCells(cells.value.join('')); }
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);
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function emit() {
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const code = cells.value.join('');
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emit('update:modelValue', code);
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emit('change', code);
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}
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function focus(i) {
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inputs.value[i] && inputs.value[i].focus();
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}
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function onInput(e, i) {
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const ch = (e.target.value || '').slice(-1);
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cells.value[i] = ch;
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e.target.value = ch;
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if (ch && i < props.length - 1) focus(i + 1);
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emit();
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}
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function onKeydown(e, i) {
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if (e.key === 'Backspace') {
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e.preventDefault();
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if (cells.value[i]) {
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cells.value[i] = '';
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} else if (i > 0) {
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cells.value[i - 1] = '';
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focus(i - 1);
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}
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emit();
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} else if (e.key === 'ArrowLeft' && i > 0) {
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focus(i - 1);
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} else if (e.key === 'ArrowRight' && i < props.length - 1) {
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focus(i + 1);
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}
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}
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function onPaste(e) {
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e.preventDefault();
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const text = (e.clipboardData || window.clipboardData).getData('text') || '';
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const digits = text.replace(/\D/g, '').slice(0, props.length).split('');
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const arr = cells.value.slice();
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for (let k = 0; k < props.length; k++) arr[k] = digits[k] || '';
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cells.value = arr;
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focus(Math.min(digits.length, props.length - 1));
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emit();
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}
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</script>
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<style src="./CodeInput.css"></style>
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