mirror of
https://gitee.com/huangge1199_admin/vue-pro.git
synced 2024-11-30 11:11:55 +08:00
241 lines
7.1 KiB
Vue
241 lines
7.1 KiB
Vue
<template>
|
||
<view class="u-code-input">
|
||
<view
|
||
class="u-code-input__item"
|
||
:style="[itemStyle(index)]"
|
||
v-for="(item, index) in codeLength"
|
||
:key="index"
|
||
>
|
||
<view
|
||
class="u-code-input__item__dot"
|
||
v-if="dot && codeArray.length > index"
|
||
></view>
|
||
<text
|
||
v-else
|
||
:style="{
|
||
fontSize: $u.addUnit(fontSize),
|
||
fontWeight: bold ? 'bold' : 'normal',
|
||
color: color
|
||
}"
|
||
>{{codeArray[index]}}</text>
|
||
<view
|
||
class="u-code-input__item__line"
|
||
v-if="mode === 'line'"
|
||
:style="[lineStyle]"
|
||
></view>
|
||
<view v-if="codeArray.length === index" :style="{backgroundColor: color}" class="u-code-input__item__cursor"></view>
|
||
</view>
|
||
<input
|
||
:disabled="disabledKeyboard"
|
||
type="number"
|
||
:focus="focus"
|
||
:value="inputValue"
|
||
:maxlength="maxlength"
|
||
class="u-code-input__input"
|
||
@input="inputHandler"
|
||
:style="{
|
||
height: $u.addUnit(size)
|
||
}"
|
||
/>
|
||
</view>
|
||
</template>
|
||
|
||
<script>
|
||
import props from './props.js';
|
||
/**
|
||
* CodeInput 验证码输入
|
||
* @description 该组件一般用于验证用户短信验证码的场景,也可以结合uView的键盘组件使用
|
||
* @tutorial https://www.uviewui.com/components/codeInput.html
|
||
* @property {String | Number} maxlength 最大输入长度 (默认 6 )
|
||
* @property {Boolean} dot 是否用圆点填充 (默认 false )
|
||
* @property {String} mode 显示模式,box-盒子模式,line-底部横线模式 (默认 'box' )
|
||
* @property {Boolean} hairline 是否细边框 (默认 false )
|
||
* @property {String | Number} space 字符间的距离 (默认 10 )
|
||
* @property {String | Number} value 预置值
|
||
* @property {Boolean} focus 是否自动获取焦点 (默认 false )
|
||
* @property {Boolean} bold 字体和输入横线是否加粗 (默认 false )
|
||
* @property {String} color 字体颜色 (默认 '#606266' )
|
||
* @property {String | Number} fontSize 字体大小,单位px (默认 18 )
|
||
* @property {String | Number} size 输入框的大小,宽等于高 (默认 35 )
|
||
* @property {Boolean} disabledKeyboard 是否隐藏原生键盘,如果想用自定义键盘的话,需设置此参数为true (默认 false )
|
||
* @property {String} borderColor 边框和线条颜色 (默认 '#c9cacc' )
|
||
* @property {Boolean} disabledDot 是否禁止输入"."符号 (默认 true )
|
||
*
|
||
* @event {Function} change 输入内容发生改变时触发,具体见上方说明 value:当前输入的值
|
||
* @event {Function} finish 输入字符个数达maxlength值时触发,见上方说明 value:当前输入的值
|
||
* @example <u-code-input v-model="value4" :focus="true"></u-code-input>
|
||
*/
|
||
export default {
|
||
name: 'u-code-input',
|
||
mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
|
||
data() {
|
||
return {
|
||
inputValue: ''
|
||
}
|
||
},
|
||
watch: {
|
||
value: {
|
||
immediate: true,
|
||
handler(val) {
|
||
// 转为字符串,超出部分截掉
|
||
this.inputValue = String(val).substring(0, this.maxlength)
|
||
}
|
||
},
|
||
},
|
||
computed: {
|
||
// 根据长度,循环输入框的个数,因为头条小程序数值不能用于v-for
|
||
codeLength() {
|
||
return new Array(Number(this.maxlength))
|
||
},
|
||
// 循环item的样式
|
||
itemStyle() {
|
||
return index => {
|
||
const addUnit = uni.$u.addUnit
|
||
const style = {
|
||
width: addUnit(this.size),
|
||
height: addUnit(this.size)
|
||
}
|
||
// 盒子模式下,需要额外进行处理
|
||
if (this.mode === 'box') {
|
||
// 设置盒子的边框,如果是细边框,则设置为0.5px宽度
|
||
style.border = `${this.hairline ? 0.5 : 1}px solid ${this.borderColor}`
|
||
// 如果盒子间距为0的话
|
||
if (uni.$u.getPx(this.space) === 0) {
|
||
// 给第一和最后一个盒子设置圆角
|
||
if (index === 0) {
|
||
style.borderTopLeftRadius = '3px'
|
||
style.borderBottomLeftRadius = '3px'
|
||
}
|
||
if (index === this.codeLength.length - 1) {
|
||
style.borderTopRightRadius = '3px'
|
||
style.borderBottomRightRadius = '3px'
|
||
}
|
||
// 最后一个盒子的右边框需要保留
|
||
if (index !== this.codeLength.length - 1) {
|
||
style.borderRight = 'none'
|
||
}
|
||
}
|
||
}
|
||
if (index !== this.codeLength.length - 1) {
|
||
// 设置验证码字符之间的距离,通过margin-right设置,最后一个字符,无需右边框
|
||
style.marginRight = addUnit(this.space)
|
||
} else {
|
||
// 最后一个盒子的有边框需要保留
|
||
style.marginRight = 0
|
||
}
|
||
|
||
return style
|
||
}
|
||
},
|
||
// 将输入的值,转为数组,给item历遍时,根据当前的索引显示数组的元素
|
||
codeArray() {
|
||
return String(this.inputValue).split('')
|
||
},
|
||
// 下划线模式下,横线的样式
|
||
lineStyle() {
|
||
const style = {}
|
||
style.height = this.hairline ? '2px' : '4px'
|
||
style.width = uni.$u.addUnit(this.size)
|
||
// 线条模式下,背景色即为边框颜色
|
||
style.backgroundColor = this.borderColor
|
||
return style
|
||
}
|
||
},
|
||
methods: {
|
||
// 监听输入框的值发生变化
|
||
inputHandler(e) {
|
||
const value = e.detail.value
|
||
this.inputValue = value
|
||
// 是否允许输入“.”符号
|
||
if(this.disabledDot) {
|
||
this.$nextTick(() => {
|
||
this.inputValue = value.replace('.', '')
|
||
})
|
||
}
|
||
// 未达到maxlength之前,发送change事件,达到后发送finish事件
|
||
this.$emit('change', value)
|
||
// 修改通过v-model双向绑定的值
|
||
this.$emit('input', value)
|
||
// 达到用户指定输入长度时,发出完成事件
|
||
if (String(value).length >= Number(this.maxlength)) {
|
||
this.$emit('finish', value)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
</script>
|
||
|
||
<style lang="scss" scoped>
|
||
@import "../../libs/css/components.scss";
|
||
$u-code-input-cursor-width: 1px;
|
||
$u-code-input-cursor-height: 40%;
|
||
$u-code-input-cursor-animation-duration: 1s;
|
||
$u-code-input-cursor-animation-name: u-cursor-flicker;
|
||
|
||
.u-code-input {
|
||
@include flex;
|
||
position: relative;
|
||
overflow: hidden;
|
||
|
||
&__item {
|
||
@include flex;
|
||
justify-content: center;
|
||
align-items: center;
|
||
position: relative;
|
||
|
||
&__text {
|
||
font-size: 15px;
|
||
color: $u-content-color;
|
||
}
|
||
|
||
&__dot {
|
||
width: 7px;
|
||
height: 7px;
|
||
border-radius: 100px;
|
||
background-color: $u-content-color;
|
||
}
|
||
|
||
&__line {
|
||
position: absolute;
|
||
bottom: 0;
|
||
height: 4px;
|
||
border-radius: 100px;
|
||
width: 40px;
|
||
background-color: $u-content-color;
|
||
}
|
||
&__cursor {
|
||
position: absolute;
|
||
top: 50%;
|
||
left: 50%;
|
||
transform: translate(-50%,-50%);
|
||
width: $u-code-input-cursor-width;
|
||
height: $u-code-input-cursor-height;
|
||
animation: $u-code-input-cursor-animation-duration u-cursor-flicker infinite;
|
||
}
|
||
}
|
||
|
||
&__input {
|
||
// 之所以需要input输入框,是因为有它才能唤起键盘
|
||
// 这里将它设置为两倍的屏幕宽度,再将左边的一半移出屏幕,为了不让用户看到输入的内容
|
||
position: absolute;
|
||
left: -750rpx;
|
||
width: 1500rpx;
|
||
top: 0;
|
||
background-color: transparent;
|
||
text-align: left;
|
||
}
|
||
}
|
||
|
||
@keyframes u-cursor-flicker {
|
||
0% {
|
||
opacity: 0;
|
||
}
|
||
50% {
|
||
opacity: 1;
|
||
}
|
||
100% {
|
||
opacity: 0;
|
||
}
|
||
}
|
||
</style>
|