345 lines
12 KiB
Vue
345 lines
12 KiB
Vue
<template>
|
||
<view
|
||
class="u-checkbox"
|
||
:style="[checkboxStyle]"
|
||
@tap.stop="wrapperClickHandler"
|
||
:class="[`u-checkbox-label--${parentData.iconPlacement}`, parentData.borderBottom && parentData.placement === 'column' && 'u-border-bottom']"
|
||
>
|
||
<view
|
||
class="u-checkbox__icon-wrap"
|
||
@tap.stop="iconClickHandler"
|
||
:class="iconClasses"
|
||
:style="[iconWrapStyle]"
|
||
>
|
||
<slot name="icon">
|
||
<u-icon
|
||
class="u-checkbox__icon-wrap__icon"
|
||
name="checkbox-mark"
|
||
:size="elIconSize"
|
||
:color="elIconColor"
|
||
/>
|
||
</slot>
|
||
</view>
|
||
<text
|
||
@tap.stop="labelClickHandler"
|
||
:style="{
|
||
color: elDisabled ? elInactiveColor : elLabelColor,
|
||
fontSize: elLabelSize,
|
||
lineHeight: elLabelSize
|
||
}"
|
||
>{{label}}</text>
|
||
</view>
|
||
</template>
|
||
|
||
<script>
|
||
import props from './props.js';
|
||
/**
|
||
* checkbox 复选框
|
||
* @description 复选框组件一般用于需要多个选择的场景，该组件功能完整，使用方便
|
||
* @tutorial https://uviewui.com/components/checkbox.html
|
||
* @property {String | Number | Boolean} name checkbox组件的标示符
|
||
* @property {String} shape 形状，square为方形，circle为圆型
|
||
* @property {String | Number} size 整体的大小
|
||
* @property {Boolean} checked 是否默认选中
|
||
* @property {String | Boolean} disabled 是否禁用
|
||
* @property {String} activeColor 选中状态下的颜色，如设置此值，将会覆盖parent的activeColor值
|
||
* @property {String} inactiveColor 未选中的颜色
|
||
* @property {String | Number} iconSize 图标的大小，单位px
|
||
* @property {String} iconColor 图标颜色
|
||
* @property {String | Number} label label提示文字，因为nvue下，直接slot进来的文字，由于特殊的结构，无法修改样式
|
||
* @property {String} labelColor label的颜色
|
||
* @property {String | Number} labelSize label的字体大小，px单位
|
||
* @property {String | Boolean} labelDisabled 是否禁止点击提示语选中复选框
|
||
* @property {Object} customStyle 定义需要用到的外部样式
|
||
*
|
||
* @event {Function} change 任一个checkbox状态发生变化时触发，回调为一个对象
|
||
* @example <u-checkbox v-model="checked" :disabled="false">天涯</u-checkbox>
|
||
*/
|
||
export default {
|
||
name: "u-checkbox",
|
||
mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
|
||
data() {
|
||
return {
|
||
isChecked: false,
|
||
// 父组件的默认值，因为头条小程序不支持在computed中使用this.parent.shape的形式
|
||
// 故只能使用如此方法
|
||
parentData: {
|
||
iconSize: 12,
|
||
labelDisabled: null,
|
||
disabled: null,
|
||
shape: 'square',
|
||
activeColor: null,
|
||
inactiveColor: null,
|
||
size: 18,
|
||
value: null,
|
||
iconColor: null,
|
||
placement: 'row',
|
||
borderBottom: false,
|
||
iconPlacement: 'left'
|
||
}
|
||
}
|
||
},
|
||
computed: {
|
||
// 是否禁用，如果父组件u-raios-group禁用的话，将会忽略子组件的配置
|
||
elDisabled() {
|
||
return this.disabled !== '' ? this.disabled : this.parentData.disabled !== null ? this.parentData.disabled : false;
|
||
},
|
||
// 是否禁用label点击
|
||
elLabelDisabled() {
|
||
return this.labelDisabled !== '' ? this.labelDisabled : this.parentData.labelDisabled !== null ? this.parentData.labelDisabled :
|
||
false;
|
||
},
|
||
// 组件尺寸，对应size的值，默认值为21px
|
||
elSize() {
|
||
return this.size ? this.size : (this.parentData.size ? this.parentData.size : 21);
|
||
},
|
||
// 组件的勾选图标的尺寸，默认12px
|
||
elIconSize() {
|
||
return this.iconSize ? this.iconSize : (this.parentData.iconSize ? this.parentData.iconSize : 12);
|
||
},
|
||
// 组件选中激活时的颜色
|
||
elActiveColor() {
|
||
return this.activeColor ? this.activeColor : (this.parentData.activeColor ? this.parentData.activeColor : '#2979ff');
|
||
},
|
||
// 组件选未中激活时的颜色
|
||
elInactiveColor() {
|
||
return this.inactiveColor ? this.inactiveColor : (this.parentData.inactiveColor ? this.parentData.inactiveColor :
|
||
'#c8c9cc');
|
||
},
|
||
// label的颜色
|
||
elLabelColor() {
|
||
return this.labelColor ? this.labelColor : (this.parentData.labelColor ? this.parentData.labelColor : '#606266')
|
||
},
|
||
// 组件的形状
|
||
elShape() {
|
||
return this.shape ? this.shape : (this.parentData.shape ? this.parentData.shape : 'circle');
|
||
},
|
||
// label大小
|
||
elLabelSize() {
|
||
return uni.$u.addUnit(this.labelSize ? this.labelSize : (this.parentData.labelSize ? this.parentData.labelSize :
|
||
'15'))
|
||
},
|
||
elIconColor() {
|
||
const iconColor = this.iconColor ? this.iconColor : (this.parentData.iconColor ? this.parentData.iconColor :
|
||
'#ffffff');
|
||
// 图标的颜色
|
||
if (this.elDisabled) {
|
||
// disabled状态下，已勾选的checkbox图标改为elInactiveColor
|
||
return this.isChecked ? this.elInactiveColor : 'transparent'
|
||
} else {
|
||
return this.isChecked ? iconColor : 'transparent'
|
||
}
|
||
},
|
||
iconClasses() {
|
||
let classes = []
|
||
// 组件的形状
|
||
classes.push('u-checkbox__icon-wrap--' + this.elShape)
|
||
if (this.elDisabled) {
|
||
classes.push('u-checkbox__icon-wrap--disabled')
|
||
}
|
||
if (this.isChecked && this.elDisabled) {
|
||
classes.push('u-checkbox__icon-wrap--disabled--checked')
|
||
}
|
||
// 支付宝，头条小程序无法动态绑定一个数组类名，否则解析出来的结果会带有","，而导致失效
|
||
// #ifdef MP-ALIPAY || MP-TOUTIAO
|
||
classes = classes.join(' ')
|
||
// #endif
|
||
return classes
|
||
},
|
||
iconWrapStyle() {
|
||
// checkbox的整体样式
|
||
const style = {}
|
||
style.backgroundColor = this.isChecked && !this.elDisabled ? this.elActiveColor : '#ffffff'
|
||
style.borderColor = this.isChecked && !this.elDisabled ? this.elActiveColor : this.elInactiveColor
|
||
style.width = uni.$u.addUnit(this.elSize)
|
||
style.height = uni.$u.addUnit(this.elSize)
|
||
// 如果是图标在右边的话，移除它的右边距
|
||
if (this.parentData.iconPlacement === 'right') {
|
||
style.marginRight = 0
|
||
}
|
||
return style
|
||
},
|
||
checkboxStyle() {
|
||
const style = {}
|
||
if (this.parentData.borderBottom && this.parentData.placement === 'row') {
|
||
uni.$u.error('检测到您将borderBottom设置为true，需要同时将u-checkbox-group的placement设置为column才有效')
|
||
}
|
||
// 当父组件设置了显示下边框并且排列形式为纵向时，给内容和边框之间加上一定间隔
|
||
if (this.parentData.borderBottom && this.parentData.placement === 'column') {
|
||
style.paddingBottom = '8px'
|
||
}
|
||
return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle))
|
||
}
|
||
},
|
||
mounted() {
|
||
this.init()
|
||
},
|
||
methods: {
|
||
init() {
|
||
// 支付宝小程序不支持provide/inject，所以使用这个方法获取整个父组件，在created定义，避免循环引用
|
||
this.updateParentData()
|
||
if (!this.parent) {
|
||
uni.$u.error('u-checkbox必须搭配u-checkbox-group组件使用')
|
||
}
|
||
// 设置初始化时，是否默认选中的状态，父组件u-checkbox-group的value可能是array，所以额外判断
|
||
if (this.checked) {
|
||
this.isChecked = true
|
||
} else if (uni.$u.test.array(this.parentData.value)) {
|
||
// 查找数组是是否存在this.name元素值
|
||
this.isChecked = this.parentData.value.some(item => {
|
||
return item === this.name
|
||
})
|
||
}
|
||
},
|
||
updateParentData() {
|
||
this.getParentData('u-checkbox-group')
|
||
},
|
||
// 横向两端排列时，点击组件即可触发选中事件
|
||
wrapperClickHandler(e) {
|
||
this.parentData.iconPlacement === 'right' && this.iconClickHandler(e)
|
||
},
|
||
// 点击图标
|
||
iconClickHandler(e) {
|
||
this.preventEvent(e)
|
||
// 如果整体被禁用，不允许被点击
|
||
if (!this.elDisabled) {
|
||
this.setRadioCheckedStatus()
|
||
}
|
||
},
|
||
// 点击label
|
||
labelClickHandler(e) {
|
||
this.preventEvent(e)
|
||
// 如果按钮整体被禁用或者label被禁用，则不允许点击文字修改状态
|
||
if (!this.elLabelDisabled && !this.elDisabled) {
|
||
this.setRadioCheckedStatus()
|
||
}
|
||
},
|
||
emitEvent() {
|
||
this.$emit('change', this.isChecked)
|
||
// 尝试调用u-form的验证方法，进行一定延迟，否则微信小程序更新可能会不及时
|
||
this.$nextTick(() => {
|
||
uni.$u.formValidate(this, 'change')
|
||
})
|
||
},
|
||
// 改变组件选中状态
|
||
// 这里的改变的依据是，更改本组件的checked值为true，同时通过父组件遍历所有u-checkbox实例
|
||
// 将本组件外的其他u-checkbox的checked都设置为false(都被取消选中状态)，因而只剩下一个为选中状态
|
||
setRadioCheckedStatus() {
|
||
// 将本组件标记为与原来相反的状态
|
||
this.isChecked = !this.isChecked
|
||
this.emitEvent()
|
||
typeof this.parent.unCheckedOther === 'function' && this.parent.unCheckedOther(this)
|
||
}
|
||
},
|
||
watch:{
|
||
checked(){
|
||
this.isChecked = this.checked
|
||
}
|
||
}
|
||
}
|
||
</script>
|
||
|
||
<style lang="scss" scoped>
|
||
@import "../../libs/css/components.scss";
|
||
$u-checkbox-icon-wrap-margin-right:6px !default;
|
||
$u-checkbox-icon-wrap-font-size:6px !default;
|
||
$u-checkbox-icon-wrap-border-width:1px !default;
|
||
$u-checkbox-icon-wrap-border-color:#c8c9cc !default;
|
||
$u-checkbox-icon-wrap-icon-line-height:0 !default;
|
||
$u-checkbox-icon-wrap-circle-border-radius:100% !default;
|
||
$u-checkbox-icon-wrap-square-border-radius:3px !default;
|
||
$u-checkbox-icon-wrap-checked-color:#fff !default;
|
||
$u-checkbox-icon-wrap-checked-background-color:red !default;
|
||
$u-checkbox-icon-wrap-checked-border-color:#2979ff !default;
|
||
$u-checkbox-icon-wrap-disabled-background-color:#ebedf0 !default;
|
||
$u-checkbox-icon-wrap-disabled-checked-color:#c8c9cc !default;
|
||
$u-checkbox-label-margin-left:5px !default;
|
||
$u-checkbox-label-margin-right:12px !default;
|
||
$u-checkbox-label-color:$u-content-color !default;
|
||
$u-checkbox-label-font-size:15px !default;
|
||
$u-checkbox-label-disabled-color:#c8c9cc !default;
|
||
|
||
.u-checkbox {
|
||
/* #ifndef APP-NVUE */
|
||
@include flex(row);
|
||
/* #endif */
|
||
overflow: hidden;
|
||
flex-direction: row;
|
||
align-items: center;
|
||
|
||
&-label--left {
|
||
flex-direction: row
|
||
}
|
||
|
||
&-label--right {
|
||
flex-direction: row-reverse;
|
||
justify-content: space-between
|
||
}
|
||
|
||
&__icon-wrap {
|
||
/* #ifndef APP-NVUE */
|
||
box-sizing: border-box;
|
||
// nvue下，border-color过渡有问题
|
||
transition-property: border-color, background-color, color;
|
||
transition-duration: 0.2s;
|
||
/* #endif */
|
||
color: $u-content-color;
|
||
@include flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
color: transparent;
|
||
text-align: center;
|
||
margin-right: $u-checkbox-icon-wrap-margin-right;
|
||
|
||
font-size: $u-checkbox-icon-wrap-font-size;
|
||
border-width: $u-checkbox-icon-wrap-border-width;
|
||
border-color: $u-checkbox-icon-wrap-border-color;
|
||
border-style: solid;
|
||
|
||
/* #ifdef MP-TOUTIAO */
|
||
// 头条小程序兼容性问题，需要设置行高为0，否则图标偏下
|
||
&__icon {
|
||
line-height: $u-checkbox-icon-wrap-icon-line-height;
|
||
}
|
||
|
||
/* #endif */
|
||
|
||
&--circle {
|
||
border-radius: $u-checkbox-icon-wrap-circle-border-radius;
|
||
}
|
||
|
||
&--square {
|
||
border-radius: $u-checkbox-icon-wrap-square-border-radius;
|
||
}
|
||
|
||
&--checked {
|
||
color: $u-checkbox-icon-wrap-checked-color;
|
||
background-color: $u-checkbox-icon-wrap-checked-background-color;
|
||
border-color: $u-checkbox-icon-wrap-checked-border-color;
|
||
}
|
||
|
||
&--disabled {
|
||
background-color: $u-checkbox-icon-wrap-disabled-background-color !important;
|
||
}
|
||
|
||
&--disabled--checked {
|
||
color: $u-checkbox-icon-wrap-disabled-checked-color !important;
|
||
}
|
||
}
|
||
|
||
&__label {
|
||
/* #ifndef APP-NVUE */
|
||
word-wrap: break-word;
|
||
/* #endif */
|
||
margin-left: $u-checkbox-label-margin-left;
|
||
margin-right: $u-checkbox-label-margin-right;
|
||
color: $u-checkbox-label-color;
|
||
font-size: $u-checkbox-label-font-size;
|
||
|
||
&--disabled {
|
||
color: $u-checkbox-label-disabled-color;
|
||
}
|
||
}
|
||
}
|
||
</style>
|