transfer.vue
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<template>
<div :class="classes">
<List
v-ref:left
:prefix-cls="prefixCls + '-list'"
:data="leftData"
:render-format="renderFormat"
:checked-keys.sync="leftCheckedKeys"
:valid-keys-count.sync="leftValidKeysCount"
:style="listStyle"
:title="titles[0]"
:filterable="filterable"
:filter-placeholder="filterPlaceholder"
:filter-method="filterMethod"
:not-found-text="notFoundText">
<slot></slot>
</List><Operation
:prefix-cls="prefixCls"
:operations="operations"
:left-active="leftValidKeysCount > 0"
:right-active="rightValidKeysCount > 0"></Operation><List
v-ref:right
:prefix-cls="prefixCls + '-list'"
:data="rightData"
:render-format="renderFormat"
:checked-keys.sync="rightCheckedKeys"
:valid-keys-count.sync="rightValidKeysCount"
:style="listStyle"
:title="titles[1]"
:filterable="filterable"
:filter-placeholder="filterPlaceholder"
:filter-method="filterMethod"
:not-found-text="notFoundText">
<slot></slot>
</List>
</div>
</template>
<script>
import List from './list.vue';
import Operation from './operation.vue';
const prefixCls = 'ivu-transfer';
export default {
components: { List, Operation },
props: {
data: {
type: Array,
default () {
return []
}
},
renderFormat: {
type: Function,
default (item) {
return item.label || item.key;
}
},
targetKeys: {
type: Array,
default () {
return []
}
},
selectedKeys: {
type: Array,
default () {
return []
}
},
listStyle: {
type: Object,
default () {
return {}
}
},
titles: {
type: Array,
default () {
return ['源列表', '目的列表']
}
},
operations: {
type: Array,
default () {
return []
}
},
filterable: {
type: Boolean,
default: false
},
filterPlaceholder: {
type: String,
default: '请输入搜索内容'
},
filterMethod: {
type: Function,
default (data, query) {
const type = ('label' in data) ? 'label' : 'key';
return data[type].indexOf(query) > -1;
}
},
notFoundText: {
type: String,
default: '列表为空'
}
},
data () {
return {
prefixCls: prefixCls,
leftData: [],
rightData: [],
leftCheckedKeys: [],
rightCheckedKeys: []
}
},
computed: {
classes () {
return [
`${prefixCls}`
]
},
leftValidKeysCount () {
return this.getValidKeys('left').length;
},
rightValidKeysCount () {
return this.getValidKeys('right').length;
}
},
methods: {
getValidKeys (direction) {
return this[`${direction}Data`].filter(data => !data.disabled && this[`${direction}CheckedKeys`].indexOf(data.key) > -1).map(data => data.key);
},
splitData (init = false) {
this.leftData = [...this.data];
this.rightData = [];
if (this.targetKeys.length > 0) {
this.targetKeys.forEach((targetKey) => {
this.rightData.push(
this.leftData.filter((data, index) => {
if (data.key === targetKey) {
this.leftData.splice(index, 1);
return true;
}
return false;
})[0]);
});
}
if (init) {
this.splitSelectedKey();
}
},
splitSelectedKey () {
const selectedKeys = this.selectedKeys;
if (selectedKeys.length > 0) {
this.leftCheckedKeys = this.leftData
.filter(data => selectedKeys.indexOf(data.key) > -1)
.map(data => data.key);
this.rightCheckedKeys = this.rightData
.filter(data => selectedKeys.indexOf(data.key) > -1)
.map(data => data.key);
}
},
moveTo (direction) {
const targetKeys = this.targetKeys;
const opposite = direction === 'left' ? 'right' : 'left';
const moveKeys = this.getValidKeys(opposite);
const newTargetKeys = direction === 'right' ?
moveKeys.concat(targetKeys) :
targetKeys.filter(targetKey => !moveKeys.some(checkedKey => targetKey === checkedKey));
this.$refs[opposite].toggleSelectAll(false);
this.$emit('on-change', newTargetKeys, direction, moveKeys);
}
},
watch: {
targetKeys () {
this.splitData(false);
}
},
created () {
this.splitData(true);
}
}
</script>