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