124 lines
2.0 KiB
Vue
124 lines
2.0 KiB
Vue
<template>
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<view
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class="cl-captcha"
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:class="{
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'is-border': border,
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}"
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>
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<input
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class="cl-captcha__input"
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v-model="value"
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type="number"
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:focus="focus"
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:maxlength="len"
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@focus="onFocus"
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@blur="onBlur"
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@input="onInput"
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/>
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<view class="cl-captcha__code">
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<view
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class="cl-captcha__item"
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:style="{
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height: parseRpx(height),
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margin: `0 ${parseRpx(gutter)}`,
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backgroundColor,
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}"
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v-for="(_, index) in list"
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:key="index"
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>
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<text class="cl-captcha__value">{{ value[index] }}</text>
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<view class="cl-captcha__cursor" v-if="value.length == index && isFocus"></view>
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</view>
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</view>
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</view>
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</template>
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<script lang="ts">
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import { computed, defineComponent, ref, watch } from "vue";
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import { parseRpx } from "/@/cool/utils";
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export default defineComponent({
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name: "cl-captcha",
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props: {
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// 绑定值
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modelValue: String,
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// 是否自动聚焦
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focus: Boolean,
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// 验证码高度
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height: {
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type: [String, Number],
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default: 140,
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},
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// 验证码位数
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len: {
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type: Number,
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default: 4,
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},
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// 间隔
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gutter: {
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type: Number,
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default: 20,
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},
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// 带边框
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border: Boolean,
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// 背景色
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backgroundColor: {
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type: String,
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default: "#ebecee",
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},
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},
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emits: ["update:modelValue", "done"],
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setup(props, { emit }) {
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const value = ref();
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// 是否聚焦
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const isFocus = ref(props.focus);
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// 头条小程序下，无法 v-for 数字
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const list = computed(() => new Array(props.len).fill(1));
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watch(
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() => props.modelValue,
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(val) => {
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value.value = val || "";
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},
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{
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immediate: true,
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},
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);
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function onFocus() {
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isFocus.value = true;
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}
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function onBlur() {
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isFocus.value = false;
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}
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function onInput(e: any) {
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const val = e.detail.value;
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emit("update:modelValue", val);
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if (val.length === props.len) {
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emit("done", val);
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}
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}
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return {
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value,
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isFocus,
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list,
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parseRpx,
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onFocus,
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onBlur,
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onInput,
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};
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},
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});
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</script>
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