105 lines
2.9 KiB
Plaintext
105 lines
2.9 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>
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export default {
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name: 'AaCodeInput',
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props: {
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value: { 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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data() {
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return {
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cells: this.value.split('').slice(0, this.length).concat(Array(Math.max(0, this.length - this.value.length)).fill('')).slice(0, this.length),
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focusedIndex: -1
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};
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},
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watch: {
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value(v) {
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const arr = v.split('').slice(0, this.length);
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while (arr.length < this.length) arr.push('');
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this.cells = arr;
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},
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length() {
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const arr = this.cells.slice(0, this.length);
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while (arr.length < this.length) arr.push('');
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this.cells = arr;
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}
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},
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methods: {
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emit() {
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const code = this.cells.join('');
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this.$emit('input', code);
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this.$emit('change', code);
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},
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onInput(e, i) {
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const ch = (e.target.value || '').slice(-1);
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this.$set(this.cells, i, ch);
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e.target.value = ch;
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if (ch && i < this.length - 1) this.focus(i + 1);
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this.emit();
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},
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onKeydown(e, i) {
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if (e.key === 'Backspace') {
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e.preventDefault();
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if (this.cells[i]) {
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this.$set(this.cells, i, '');
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} else if (i > 0) {
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this.$set(this.cells, i - 1, '');
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this.focus(i - 1);
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}
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this.emit();
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} else if (e.key === 'ArrowLeft' && i > 0) {
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this.focus(i - 1);
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} else if (e.key === 'ArrowRight' && i < this.length - 1) {
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this.focus(i + 1);
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}
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},
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onPaste(e) {
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e.preventDefault();
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const text = (e.clipboardData || window.clipboardData).getData('text') || '';
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const digits = text.replace(/\D/g, '').slice(0, this.length).split('');
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const arr = this.cells.slice();
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for (let k = 0; k < this.length; k++) arr[k] = digits[k] || '';
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this.cells = arr;
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this.focus(Math.min(digits.length, this.length - 1));
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this.emit();
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},
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focus(i) {
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this.$nextTick(() => {
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const el = this.$refs.inputs && this.$refs.inputs[i];
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if (el) el.focus();
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});
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}
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}
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};
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</script>
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<style src="./CodeInput.css"></style>
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