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<template>
<view class="uni-collapse">
<slot />
</view>
</template>
<script>
/**
* Collapse 折叠面板
* @description 展示可以折叠 / 展开的内容区域
* @tutorial https://ext.dcloud.net.cn/plugin?id=23
* @property {String|Array} value 当前激活面板改变时触发(如果是手风琴模式,参数类型为string,否则为array)
* @property {Boolean} accordion = [true|false] 是否开启手风琴效果是否开启手风琴效果
* @event {Function} change 切换面板时触发,如果是手风琴模式,返回类型为string,否则为array
*/
export default {
name: 'uniCollapse',
emits:['change','activeItem','input','update:modelValue'],
props: {
value: {
type: [String, Array],
default: ''
},
modelValue: {
type: [String, Array],
default: ''
},
accordion: {
// 是否开启手风琴效果
type: [Boolean, String],
default: false
},
},
data() {
return {}
},
computed: {
// TODO 兼容 vue2 和 vue3
dataValue() {
let value = (typeof this.value === 'string' && this.value === '') ||
(Array.isArray(this.value) && this.value.length === 0)
let modelValue = (typeof this.modelValue === 'string' && this.modelValue === '') ||
(Array.isArray(this.modelValue) && this.modelValue.length === 0)
if (value) {
return this.modelValue
}
if (modelValue) {
return this.value
}
return this.value
}
},
watch: {
dataValue(val) {
this.setOpen(val)
}
},
created() {
this.childrens = []
this.names = []
},
mounted() {
this.$nextTick(()=>{
this.setOpen(this.dataValue)
})
},
methods: {
setOpen(val) {
let str = typeof val === 'string'
let arr = Array.isArray(val)
this.childrens.forEach((vm, index) => {
if (str) {
if (val === vm.nameSync) {
if (!this.accordion) {
console.warn('accordion 属性为 false ,v-model 类型应该为 array')
return
}
vm.isOpen = true
}
}
if (arr) {
val.forEach(v => {
if (v === vm.nameSync) {
if (this.accordion) {
console.warn('accordion 属性为 true ,v-model 类型应该为 string')
return
}
vm.isOpen = true
}
})
}
})
this.emit(val)
},
setAccordion(self) {
if (!this.accordion) return
this.childrens.forEach((vm, index) => {
if (self !== vm) {
vm.isOpen = false
}
})
},
resize() {
this.childrens.forEach((vm, index) => {
// #ifndef APP-NVUE
vm.getCollapseHeight()
// #endif
// #ifdef APP-NVUE
vm.getNvueHwight()
// #endif
})
},
onChange(isOpen, self) {
let activeItem = []
if (this.accordion) {
activeItem = isOpen ? self.nameSync : ''
} else {
this.childrens.forEach((vm, index) => {
if (vm.isOpen) {
activeItem.push(vm.nameSync)
}
})
}
this.$emit('change', activeItem)
this.emit(activeItem)
},
emit(val){
this.$emit('input', val)
this.$emit('update:modelValue', val)
}
}
}
</script>
<style lang="scss" >
.uni-collapse {
/* #ifndef APP-NVUE */
width: 100%;
display: flex;
/* #endif */
/* #ifdef APP-NVUE */
flex: 1;
/* #endif */
flex-direction: column;
background-color: #fff;
}
</style>