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| <template>
| <el-select ref="dragSelect" v-model="selectVal" v-bind="$attrs" class="drag-select" multiple v-on="$attrs">
| <slot />
| </el-select>
| </template>
|
| <script>
| import { defineComponent } from 'vue';
| import Sortable from 'sortablejs';
|
| export default defineComponent({
| name: 'DragSelect',
| props: {
| modelValue: {
| type: Array,
| required: true
| },
| placeholder: {
| type: String,
| default: null
| },
| style: {
| type: [String, Object],
| default: null
| }
| },
| computed: {
| selectVal: {
| get() {
| return [...this.modelValue];
| },
| set(val) {
| this.$emit('update:modelValue', [...val]);
| }
| }
| },
| mounted() {
| this.setSort();
| },
| methods: {
| setSort() {
| const el = this.$refs.dragSelect.$el.querySelector('.el-select__wrapper .el-select__selection');
| this.sortable = Sortable.create(el, {
| ghostClass: 'sortable-ghost', // Class name for the drop placeholder,
| setData: function(dataTransfer) {
| dataTransfer.setData('Text', '');
| // to avoid Firefox bug
| // Detail see : https://github.com/RubaXa/Sortable/issues/1012
| },
| onEnd: evt => {
| const theValue = this.modelValue;
| const targetRow = theValue.splice(evt.oldIndex, 1)[0];
| theValue.splice(evt.newIndex, 0, targetRow);
| }
| });
| }
| }
| });
| </script>
|
| <style lang="less" scoped>
| .drag-select {
| :deep(.sortable-ghost .el-tag) {
| opacity: .8;
| color: #fff !important;
| background: #42b983 !important;
| }
| :deep(.el-tag) {
| cursor: pointer;
| }
| }
| </style>
|
|
