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<template>
<!-- #ifdef H5 -->
<th :rowspan="rowspan" :colspan="colspan" class="uni-table-th" :class="{ 'table--border': border }" :style="{ width: width + 'px', 'text-align': align }">
<view class="uni-table-th-row">
<view class="uni-table-th-content" :style="{ 'justify-content': contentAlign }" @click="sort">
<slot></slot>
<view v-if="sortable" class="arrow-box">
<text class="arrow up" :class="{ active: ascending }" @click.stop="ascendingFn"></text>
<text class="arrow down" :class="{ active: descending }" @click.stop="descendingFn"></text>
</view>
</view>
<dropdown v-if="filterType || filterData.length" :filterData="filterData" :filterType="filterType" @change="ondropdown"></dropdown>
</view>
</th>
<!-- #endif -->
<!-- #ifndef H5 -->
<view class="uni-table-th" :class="{ 'table--border': border }" :style="{ width: width + 'px', 'text-align': align }"><slot></slot></view>
<!-- #endif -->
</template>
<script>
import dropdown from './filter-dropdown.vue'
/**
* Th 表头
* @description 表格内的表头单元格组件
* @tutorial https://ext.dcloud.net.cn/plugin?id=3270
* @property {Number} width 单元格宽度
* @property {Boolean} sortable 是否启用排序
* @property {Number} align = [left|center|right] 单元格对齐方式
* @value left 单元格文字左侧对齐
* @value center 单元格文字居中
* @value right 单元格文字右侧对齐
* @property {Array} filterData 筛选数据
* @property {String} filterType [search|select] 筛选类型
* @value search 关键字搜素
* @value select 条件选择
* @event {Function} sort-change 排序触发事件
*/
export default {
name: 'uniTh',
options: {
virtualHost: true
},
components: {
dropdown
},
emits:['sort-change','filter-change'],
props: {
width: {
type: [String, Number],
default: ''
},
align: {
type: String,
default: 'left'
},
rowspan: {
type: [Number, String],
default: 1
},
colspan: {
type: [Number, String],
default: 1
},
sortable: {
type: Boolean,
default: false
},
filterType: {
type: String,
default: ""
},
filterData: {
type: Array,
default () {
return []
}
}
},
data() {
return {
border: false,
ascending: false,
descending: false
}
},
computed: {
contentAlign() {
let align = 'left'
switch (this.align) {
case 'left':
align = 'flex-start'
break
case 'center':
align = 'center'
break
case 'right':
align = 'flex-end'
break
}
return align
}
},
created() {
this.root = this.getTable('uniTable')
this.rootTr = this.getTable('uniTr')
this.rootTr.minWidthUpdate(this.width ? this.width : 140)
this.border = this.root.border
this.root.thChildren.push(this)
},
methods: {
sort() {
if (!this.sortable) return
this.clearOther()
if (!this.ascending && !this.descending) {
this.ascending = true
this.$emit('sort-change', { order: 'ascending' })
return
}
if (this.ascending && !this.descending) {
this.ascending = false
this.descending = true
this.$emit('sort-change', { order: 'descending' })
return
}
if (!this.ascending && this.descending) {
this.ascending = false
this.descending = false
this.$emit('sort-change', { order: null })
}
},
ascendingFn() {
this.clearOther()
this.ascending = !this.ascending
this.descending = false
this.$emit('sort-change', { order: this.ascending ? 'ascending' : null })
},
descendingFn() {
this.clearOther()
this.descending = !this.descending
this.ascending = false
this.$emit('sort-change', { order: this.descending ? 'descending' : null })
},
clearOther() {
this.root.thChildren.map(item => {
if (item !== this) {
item.ascending = false
item.descending = false
}
return item
})
},
ondropdown(e) {
this.$emit("filter-change", e)
},
/**
* 获取父元素实例
*/
getTable(name) {
let parent = this.$parent
let parentName = parent.$options.name
while (parentName !== name) {
parent = parent.$parent
if (!parent) return false
parentName = parent.$options.name
}
return parent
}
}
}
</script>
<style lang="scss">
$border-color: #ebeef5;
.uni-table-th {
padding: 12px 10px;
/* #ifndef APP-NVUE */
display: table-cell;
box-sizing: border-box;
/* #endif */
font-size: 14px;
font-weight: bold;
color: #909399;
border-bottom: 1px $border-color solid;
}
.uni-table-th-row {
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
flex-direction: row;
}
.table--border {
border-right: 1px $border-color solid;
}
.uni-table-th-content {
display: flex;
align-items: center;
flex: 1;
}
.arrow-box {
}
.arrow {
display: block;
position: relative;
width: 10px;
height: 8px;
// border: 1px red solid;
left: 5px;
overflow: hidden;
cursor: pointer;
}
.down {
top: 3px;
::after {
content: '';
width: 8px;
height: 8px;
position: absolute;
left: 2px;
top: -5px;
transform: rotate(45deg);
background-color: #ccc;
}
&.active {
::after {
background-color: #007aff;
}
}
}
.up {
::after {
content: '';
width: 8px;
height: 8px;
position: absolute;
left: 2px;
top: 5px;
transform: rotate(45deg);
background-color: #ccc;
}
&.active {
::after {
background-color: #007aff;
}
}
}
</style>