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- <template>
- <view class="u-char-box">
- <view class="u-char-flex">
- <input :disabled="disabledKeyboard" :value="valueModel" type="number" :focus="focus" :maxlength="maxlength" class="u-input" @input="getVal"/>
- <view v-for="(item, index) in loopCharArr" :key="index">
- <view :class="[breathe && charArrLength == index ? 'u-breathe' : '', 'u-char-item',
- charArrLength === index && mode == 'box' ? 'u-box-active' : '',
- mode === 'box' ? 'u-box' : '']" :style="{
- fontWeight: bold ? 'bold' : 'normal',
- fontSize: fontSize + 'rpx',
- width: width + 'rpx',
- height: width + 'rpx',
- color: inactiveColor,
- borderColor: charArrLength === index && mode == 'box' ? activeColor : inactiveColor
- }">
- <view class="u-placeholder-line" :style="{
- display: charArrLength === index ? 'block' : 'none',
- height: width * 0.5 +'rpx'
- }"
- v-if="mode !== 'middleLine'"
- ></view>
- <view v-if="mode === 'middleLine' && charArrLength <= index" :class="[breathe && charArrLength == index ? 'u-breathe' : '', charArrLength === index ? 'u-middle-line-active' : '']"
- class="u-middle-line" :style="{height: bold ? '4px' : '2px', background: charArrLength === index ? activeColor : inactiveColor}"></view>
- <view v-if="mode === 'bottomLine'" :class="[breathe && charArrLength == index ? 'u-breathe' : '', charArrLength === index ? 'u-buttom-line-active' : '']"
- class="u-bottom-line" :style="{height: bold ? '4px' : '2px', background: charArrLength === index ? activeColor : inactiveColor}"></view>
- <block v-if="!dotFill"> {{ charArr[index] ? charArr[index] : ''}}</block>
- <block v-else>
- <text class="u-dot">{{ charArr[index] ? '●' : ''}}</text>
- </block>
- </view>
- </view>
- </view>
- </view>
- </template>
- <script>
- /**
- * 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://www.uviewui.com/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#2979ff)
- * @property {String} inactive-color 非激活输入框的样式,文字颜色同此值(默认#606266)
- * @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>
- */
- export default {
- name: "u-message-input",
- props: {
- // 最大输入长度
- maxlength: {
- type: [Number, String],
- default: 4
- },
- // 是否用圆点填充
- dotFill: {
- type: Boolean,
- default: false
- },
- // 显示模式,box-盒子模式,bottomLine-横线在底部模式,middleLine-横线在中部模式
- mode: {
- type: String,
- default: "box"
- },
- // 预置值
- value: {
- type: [String, Number],
- default: ''
- },
- // 当前激活输入item,是否带有呼吸效果
- breathe: {
- type: Boolean,
- default: true
- },
- // 是否自动获取焦点
- focus: {
- type: Boolean,
- default: false
- },
- // 字体是否加粗
- bold: {
- type: Boolean,
- default: false
- },
- // 字体大小
- fontSize: {
- type: [String, Number],
- default: 60
- },
- // 激活样式
- activeColor: {
- type: String,
- default: '#2979ff'
- },
- // 未激活的样式
- inactiveColor: {
- type: String,
- default: '#606266'
- },
- // 输入框的大小,单位rpx,宽等于高
- width: {
- type: [Number, String],
- default: '80'
- },
- // 是否隐藏原生键盘,如果想用自定义键盘的话,需设置此参数为true
- disabledKeyboard: {
- type: Boolean,
- default: false
- }
- },
- watch: {
- // maxlength: {
- // // 此值设置为true,会在组件加载后无需maxlength变化就会执行一次本监听函数,无需再created生命周期中处理
- // immediate: true,
- // handler(val) {
- // this.maxlength = Number(val);
- // }
- // },
- value: {
- immediate: true,
- handler(val) {
- // 转为字符串
- val = String(val);
- // 超出部分截掉
- this.valueModel = val.substring(0, this.maxlength);
- }
- },
- },
- data() {
- return {
- valueModel: ""
- }
- },
- computed: {
- // 是否显示呼吸灯效果
- animationClass() {
- return (index) => {
- if (this.breathe && this.charArr.length == index) return 'u-breathe';
- else return '';
- }
- },
- // 用于显示字符
- charArr() {
- return this.valueModel.split('');
- },
- charArrLength() {
- return this.charArr.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
- loopCharArr() {
- return new Array(this.maxlength);
- }
- },
- methods: {
- getVal(e) {
- let {
- value
- } = e.detail
- this.valueModel = 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 > this.maxlength) return;
- // 未达到maxlength之前,发送change事件,达到后发送finish事件
- this.$emit('change', value);
- if (String(value).length == this.maxlength) {
- this.$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 #cccccc;
- 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: #333333;
- 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: #000000;
- width: 80%;
- position: absolute;
- border-radius: 2px;
- top: 50%;
- left: 50%;
- transform: translate(-50%, -50%);
- }
- .u-buttom-line-active {
- background: $u-type-primary;
- }
- .u-bottom-line {
- height: 4px;
- background: #000000;
- width: 80%;
- position: absolute;
- border-radius: 2px;
- bottom: 0;
- left: 50%;
- transform: translate(-50%);
- }
- </style>
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