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CNCEC_APP/uni_modules/uview-pro/components/u-message-input/u-message-input.vue
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2026-03-25 14:54:15 +08:00

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<template>
<view class="u-char-box" :class="customClass" :style="$u.toStyle(customStyle)">
<view class="u-char-flex">
<!-- prettier-ignore -->
<input
:disabled="props.disabledKeyboard"
:value="valueModel"
:type="(type as any)"
:focus="props.focus"
:maxlength="Number(props.maxlength)"
class="u-input"
@input="getVal"
/>
<view v-for="(item, index) in loopCharArr" :key="index">
<view
:class="[
props.breathe && charArrLength === index ? 'u-breathe' : '',
'u-char-item',
charArrLength === index && props.mode == 'box' ? 'u-box-active' : '',
props.mode === 'box' ? 'u-box' : ''
]"
:style="{
fontWeight: props.bold ? 'bold' : 'normal',
fontSize: props.fontSize + 'rpx',
width: props.width + 'rpx',
height: props.width + 'rpx',
color: props.inactiveColor,
borderColor:
charArrLength === index && props.mode == 'box' ? props.activeColor : props.inactiveColor
}"
>
<view
class="u-placeholder-line"
:style="{
display: charArrLength === index ? 'block' : 'none',
height: Number(props.width) * 0.5 + 'rpx'
}"
v-if="props.mode !== 'middleLine'"
></view>
<view
v-if="props.mode === 'middleLine' && charArrLength <= index"
:class="[
props.breathe && charArrLength === index ? 'u-breathe' : '',
charArrLength === index ? 'u-middle-line-active' : ''
]"
class="u-middle-line"
:style="{
height: props.bold ? '4px' : '2px',
background: charArrLength === index ? props.activeColor : props.inactiveColor
}"
></view>
<view
v-if="props.mode === 'bottomLine'"
:class="[
props.breathe && charArrLength === index ? 'u-breathe' : '',
charArrLength === index ? 'u-bottom-line-active' : ''
]"
class="u-bottom-line"
:style="{
height: props.bold ? '4px' : '2px',
background: charArrLength === index ? props.activeColor : props.inactiveColor
}"
></view>
<block v-if="!props.dotFill"> {{ charArr[index] ? charArr[index] : '' }}</block>
<block v-else>
<text class="u-dot">{{ charArr[index] ? '●' : '' }}</text>
</block>
</view>
</view>
</view>
</view>
</template>
<script lang="ts">
export default {
name: 'u-message-input',
options: {
addGlobalClass: true,
// #ifndef MP-TOUTIAO
virtualHost: true,
// #endif
styleIsolation: 'shared'
}
};
</script>
<script setup lang="ts">
import { ref, computed, watch } from 'vue';
import { MessageInputProps } from './types';
import { $u } from '../../';
/**
* messageInput 验证码输入框
* @description 该组件一般用于验证用户短信验证码的场景,也可以结合uView的键盘组件使用
* @tutorial https://uviewpro.cn/zh/components/messageInput.html
* @property {String|Number} maxlength 输入字符个数(默认4
* @property {Boolean} dot-fill 是否用圆点填充(默认false)
* @property {String} mode 模式选择,见上方"基本使用"说明(默认box
* @property {String|Number} value 预置值
* @property {Boolean} breathe 是否开启呼吸效果,见上方说明(默认true)
* @property {Boolean} focus 是否自动获取焦点(默认false)
* @property {Boolean} bold 字体和输入横线是否加粗(默认true)
* @property {String|Number} font-size 字体大小,单位rpx(默认60)
* @property {String} active-color 当前激活输入框的样式(默认主题色primary)
* @property {String} inactive-color 非激活输入框的样式,文字颜色同此值(默认var(--u-content-color)
* @property {String|Number} width 输入框宽度,单位rpx,高等于宽(默认80)
* @property {Boolean} disabled-keyboard 禁止点击输入框唤起系统键盘(默认false)
* @event {Function} change 输入内容发生改变时触发,具体见官网说明
* @event {Function} finish 输入字符个数达maxlength值时触发,见官网说明
* @example <u-message-input mode="bottomLine"></u-message-input>
*/
const props = defineProps(MessageInputProps);
const emit = defineEmits(['change', 'finish']);
// 输入框实际值
const valueModel = ref('');
// 监听 value 变化,自动同步 valueModel,超出部分截掉
watch(
() => props.value,
val => {
// 转为字符串
const strVal = String(val);
// 超出部分截掉
valueModel.value = strVal.substring(0, Number(props.maxlength));
},
{ immediate: true }
);
// 用于显示字符
const charArr = computed(() => valueModel.value.split(''));
const charArrLength = computed(() => charArr.value.length);
// 根据长度,循环输入框的个数,因为头条小程序数值不能用于v-for
const loopCharArr = computed(() => new Array(Number(props.maxlength)));
/**
* 输入事件处理
* @param e input事件对象
*/
function getVal(e: any) {
const { value } = e.detail;
valueModel.value = value;
// 判断长度是否超出了maxlength值,理论上不会发生,因为input组件设置了maxlength属性值
if (String(value).length > Number(props.maxlength)) return;
// 未达到maxlength之前,发送change事件,达到后发送finish事件
emit('change', value);
if (String(value).length === Number(props.maxlength)) {
emit('finish', value);
}
}
</script>
<style scoped lang="scss">
@import '../../libs/css/style.components.scss';
@keyframes breathe {
0% {
opacity: 0.3;
}
50% {
opacity: 1;
}
100% {
opacity: 0.3;
}
}
.u-char-box {
text-align: center;
}
.u-char-flex {
@include vue-flex;
justify-content: center;
flex-wrap: wrap;
position: relative;
}
.u-input {
position: absolute;
top: 0;
left: -100%;
width: 200%;
height: 100%;
text-align: left;
z-index: 9;
opacity: 0;
background: none;
}
.u-char-item {
position: relative;
width: 90rpx;
height: 90rpx;
margin: 10rpx 10rpx;
font-size: 60rpx;
font-weight: bold;
color: $u-main-color;
line-height: 90rpx;
@include vue-flex;
justify-content: center;
align-items: center;
}
.u-middle-line {
border: none;
}
.u-box {
box-sizing: border-box;
border: 2rpx solid var(--u-light-color);
border-radius: 6rpx;
}
.u-box-active {
overflow: hidden;
animation-timing-function: ease-in-out;
animation-duration: 1500ms;
animation-iteration-count: infinite;
animation-direction: alternate;
border: 2rpx solid $u-type-primary;
}
.u-middle-line-active {
background: $u-type-primary;
}
.u-breathe {
animation: breathe 2s infinite ease;
}
.u-placeholder-line {
/* #ifndef APP-NVUE */
display: none;
/* #endif */
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 2rpx;
height: 40rpx;
background: var(--u-main-color);
animation: twinkling 1.5s infinite ease;
}
.u-animation-breathe {
animation-name: breathe;
}
.u-dot {
font-size: 34rpx;
line-height: 34rpx;
}
.u-middle-line {
height: 4px;
background: var(--u-bg-black);
width: 80%;
position: absolute;
border-radius: 2px;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.u-bottom-line-active {
background: $u-type-primary;
}
.u-bottom-line {
height: 4px;
background: var(--u-bg-black);
width: 80%;
position: absolute;
border-radius: 2px;
bottom: 0;
left: 50%;
transform: translate(-50%);
}
</style>