yunshangxie/tuniao-ui/components/tn-checkbox/tn-checkbox.vue

329 lines
9.1 KiB
Vue
Raw Normal View History

2023-12-25 17:56:30 +08:00
<template>
<view class="tn-checkbox-class tn-checkbox" :style="[checkboxStyle]">
<view
class="tn-checkbox__icon-wrap"
:class="[iconClass]"
:style="[iconStyle]"
@tap="toggle"
>
<view class="tn-checkbox__icon-wrap__icon" :class="[`tn-icon-${iconName}`]"></view>
</view>
<view
class="tn-checkbox__label"
:class="[labelClass]"
:style="{
fontSize: labelSize ? labelSize + 'rpx' : ''
}"
@tap="onClickLabel"
>
<slot></slot>
</view>
</view>
</template>
<script>
export default {
name: 'tn-checkbox',
props: {
// checkbox名称
name: {
type: [String, Number],
default: ''
},
// 是否为选中状态
value: {
type: Boolean,
default: false
},
// 禁用选择
disabled: {
type: Boolean,
default: false
},
// 禁用点击标签进行选择
disabledLabel: {
type: Boolean,
default: false
},
// 选择框的形状 square 方形 circle 圆形
shape: {
type: String,
default: ''
},
// 选中时的颜色
activeColor: {
type: String,
default: ''
},
// 组件大小
size: {
type: Number,
default: 0
},
// 图标名称
iconName: {
type: String,
default: 'success'
},
// 图标大小
iconSize: {
type: Number,
default: 0
},
// label的字体大小
labelSize: {
type: Number,
default: 0
}
},
computed: {
// 是否禁用选中,父组件的禁用会覆盖当前的禁用状态
isDisabled() {
return this.disabled ? this.disabled : (this.parent ? this.parentData.disabled : false)
},
// 是否禁用点击label选中父组件的禁用会覆盖当前的禁用状态
isDisabledLabel() {
return this.disabledLabel ? this.disabledLabel : (this.parent ? this.parentData.disabledLabel : false)
},
// 尺寸
checkboxSize() {
return this.size ? this.size : (this.parent ? this.parentData.size : 34)
},
// 激活时的颜色
elAvtiveColor() {
return this.activeColor ? this.activeColor : (this.parent ? this.parentData.activeColor : '#01BEFF')
},
// 形状
elShape() {
return this.shape ? this.shape : (this.parent ? this.parentData.shape : 'square')
},
iconClass() {
let clazz = ''
clazz += (' tn-checkbox__icon-wrap--' + this.elShape)
if (this.checkValue) clazz += ' tn-checkbox__icon-wrap--checked'
if (this.isDisabled) clazz += ' tn-checkbox__icon-wrap--disabled'
if (this.value && this.isDisabled) clazz += ' tn-checkbox__icon-wrap--disabled--checked'
return clazz
},
iconStyle() {
let style = {}
// 判断是否用户手动禁用和传递的值
if (this.elAvtiveColor && this.checkValue && !this.isDisabled) {
style.borderColor = this.elAvtiveColor
style.backgroundColor = this.elAvtiveColor
}
// checkbox内部的勾选图标如果选中状态为白色否则为透明色即可
style.color = this.checkValue ? '#FFFFFF' : 'transparent'
style.width = this.checkboxSize + 'rpx'
style.height = style.width
style.fontSize = (this.iconSize ? this.iconSize : (this.parent ? this.parentData.iconSize : 20)) + 'rpx'
return style
},
checkboxStyle() {
let style = {}
if (this.parent && this.parentData.width) {
// #ifdef MP
// 各家小程序因为它们特殊的编译结构使用float布局
style.float = 'left';
// #endif
// #ifndef MP
// H5和APP使用flex布局
style.flex = `0 0 ${this.parentData.width}`;
// #endif
}
if(this.parent && this.parentData.wrap) {
style.width = '100%';
// #ifndef MP
// H5和APP使用flex布局将宽度设置100%,即可自动换行
style.flex = '0 0 100%';
// #endif
}
return style
},
labelClass() {
let clazz = ''
if (this.isDisabled) {
clazz += ' tn-checkbox__label--disabled'
}
return clazz
}
},
data() {
return {
// 当前checkbox的value值
checkValue: false,
parentData: {
value: null,
max: null,
disabled: null,
disabledLabel: null,
shape: null,
activeColor: null,
size: null,
width: null,
wrap: null,
iconSize: null
}
}
},
watch: {
value(val) {
this.checkValue = val
}
},
created() {
// 支付宝小程序不支持provide/inject所以使用这个方法获取整个父组件在created定义避免循环应用
// this.parent = this.$tn.$parent.call(this, 'tn-checkbox-group')
// // 如果存在u-checkbox-group将本组件的this塞进父组件的children中
// this.parent && this.parent.children.push(this)
// // 初始化父组件的value值
// this.parent && this.parent.emitEvent()
this.updateParentData()
this.parent && this.parent.children.push(this)
},
methods: {
updateCheckValue() {
// 更新当前checkbox的选中状态
this.checkValue = (this.parent && this.parentData.value.includes(this.name)) || this.value === true
if (this.parent) {
if (this.value && !this.parentData.value.includes(this.name)) {
this.parentData.value.push(this.name)
this.parent.initValue(this.parentData.value)
}
}
},
updateParentData() {
this.getParentData('tn-checkbox-group')
this.updateCheckValue()
},
onClickLabel() {
if (!this.isDisabled && !this.isDisabledLabel) {
this.setValue()
}
},
toggle() {
if (!this.isDisabled) {
this.setValue()
}
},
emitEvent() {
this.$emit('change', {
name: this.name,
value: !this.checkValue
})
if (this.parent) {
this.checkValue = !this.checkValue
// 执行父组件tn-checkbox-group的事件方法
// 等待下一个周期再执行因为this.$emit('input')作用于父组件,再反馈到子组件内部,需要时间
setTimeout(() => {
if(this.parent.emitEvent) this.parent.emitEvent();
}, 80)
}
},
// 设置input的值通过v-modal绑定组件的值
setValue() {
// 判断是否为可选项组
if (this.parent) {
// 反转状态
if (this.checkValue === true) {
this.emitEvent()
// this.$emit('input', !this.checkValue)
} else {
// 超出最大可选项,弹出提示
if (this.parentData.value.length >= this.parentData.max) {
return this.$tn.message.toast(`最多可选${this.parent.max}`)
}
// 如果原来为未选中状态需要选中的数量少于父组件中设置的max值才可以选中
this.emitEvent();
// this.$emit('input', !this.checkValue);
}
} else {
// 只有一个可选项
this.emitEvent()
this.$emit('input', !this.checkValue)
}
}
}
}
</script>
<style lang="scss" scoped>
.tn-checkbox {
/* #ifndef APP-NVUE */
display: inline-flex;
/* #endif */
align-items: center;
overflow: hidden;
user-select: none;
line-height: 1.8;
&__icon-wrap {
color: $tn-font-color;
flex: none;
display: flex;
flex-direction: row;
align-items: center;
justify-content: center;
box-sizing: border-box;
width: 42rpx;
height: 42rpx;
color: transparent;
text-align: center;
transition-property: color, border-color, background-color;
border: 1px solid $tn-font-sub-color;
transition-duration: 0.2s;
/* #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: 0;
}
/* #endif */
&--circle {
border-radius: 100%;
}
&--square {
border-radius: 6rpx;
}
&--checked {
color: #FFFFFF;
background-color: $tn-main-color;
border-color: $tn-main-color;
}
&--disabled {
background-color: $tn-font-holder-color;
border-color: $tn-font-sub-color;
}
&--disabled--checked {
color: $tn-font-sub-color !important;
}
}
&__label {
word-wrap: break-word;
margin-left: 10rpx;
margin-right: 24rpx;
color: $tn-font-color;
font-size: 30rpx;
&--disabled {
color: $tn-font-sub-color;
}
}
}
</style>