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+<template>
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+ <div class="center-area">
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+ <!-- <p class="hint-text" v-show="data.list.length === 0">
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+ <a-empty description="从左侧选择控件添加" />
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+ </p> -->
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+ <draggable
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+ tag="div"
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+ class="draggable-box"
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+ v-bind="{
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+ group: 'form-draggable',
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+ ghostClass: 'moving',
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+ animation: 180,
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+ handle: '.drag-move',
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+ }"
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+ v-model="data.list"
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+ @end="endHandler"
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+ @add="deepClone"
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+ @start="dragStart($event, data.list)"
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+ >
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+ <transition-group tag="div" name="list" class="list-main">
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+ <LayoutItem
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+ v-for="(item, index) in data.list"
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+ :key="index"
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+ class="drag-move"
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+ :record="item"
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+ :selectItem.sync="selectItem"
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+ @handleColAdd="handleColAdd"
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+ @dragStart="dragStart"
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+ @handleSelectItem="handleSelectItem"
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+ @handleDelete="handleDelete"
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+ @handleShowRightMenu="handleShowRightMenu"
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+ />
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+ </transition-group>
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+ </draggable>
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+ </div>
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+</template>
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+
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+<script>
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+import LayoutItem from "./LayoutItem.vue";
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+import draggable from "vuedraggable";
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+export default {
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+ name: "CenterArea",
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+ props: ["selectItem", "data", "noModel"],
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+ components: { LayoutItem, draggable },
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+ data() {
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+ return {};
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+ },
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+ computed: {},
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+ methods: {
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+ handleCopy(isCopy = true, data) {
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+ const traverse = (array) => {
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+ array.forEach((element, index) => {
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+ if (element.key === this.selectItem.key) {
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+ if (isCopy) {
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+ // 复制添加到选择节点后面
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+ array.splice(index + 1, 0, element);
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+ } else {
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+ // 双击添加到选择节点后面
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+ array.splice(index + 1, 0, data);
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+ }
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+ // 复制完成,重置key值
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+ const evt = {
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+ newIndex: index + 1,
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+ };
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+ this.handleColAdd(evt, array, true);
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+ return;
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+ }
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+ if (["grid", "tabs", "selectInputList"].includes(element.type)) {
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+ // 栅格布局
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+ element.columns.forEach((item) => {
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+ traverse(item.list);
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+ });
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+ } else if (element.type === "card") {
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+ // 卡片布局
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+ traverse(element.list);
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+ } else if (element.type === "batch") {
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+ // 动态表格内复制
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+ if (!isCopy && !this.insertAllowedType.includes(data.type)) {
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+ // 插入不允许的字段时,直接return false
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+ return false;
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+ }
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+ traverse(element.list);
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+ }
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+ if (element.type === "table") {
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+ // 表格布局
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+ element.trs.forEach((item) => {
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+ item.tds.forEach((val) => {
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+ traverse(val.list);
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+ });
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+ });
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+ }
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+ });
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+ };
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+ traverse(this.data.list);
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+ },
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+ // 递归 删除已选择
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+ handleDelete(ele) {
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+ console.log("删除的元素", ele);
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+ // 删除已选择
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+ const traverse = (array) => {
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+ array = array.filter((element, index) => {
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+ if (["grid", "tabs", "selectInputList"].includes(element.type)) {
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+ // 栅格布局
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+ element.columns.forEach((item) => {
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+ item.list = traverse(item.list);
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+ });
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+ }
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+ if (element.type === "card" || element.type === "batch") {
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+ // 卡片布局
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+ element.list = traverse(element.list);
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+ }
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+ if (element.type === "table") {
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+ // 表格布局
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+ element.trs.forEach((item) => {
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+ item.tds.forEach((val) => {
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+ val.list = traverse(val.list);
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+ });
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+ });
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+ }
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+ if (element.key !== ele.key) {
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+ return true;
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+ } else {
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+ if (array.length === 1) {
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+ this.handleSelectItem({ key: "" });
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+ } else if (array.length - 1 > index) {
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+ this.handleSelectItem(array[index + 1]);
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+ } else {
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+ this.handleSelectItem(array[index - 1]);
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+ }
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+ return false;
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+ }
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+ });
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+ return array;
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+ };
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+
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+ this.data.list = traverse(this.data.list);
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+ },
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+ deepClone(evt) {
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+ console.log("deepClone", evt);
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+ const newIndex = evt.newIndex;
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+ // json深拷贝一次
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+ const listString = JSON.stringify(this.data.list);
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+ this.data.list = JSON.parse(listString);
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+ // 删除icon及compoent属性
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+ delete this.data.list[newIndex].icon;
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+ delete this.data.list[newIndex].component;
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+ // this.data.list[newIndex].key =
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+ // this.data.list[newIndex].type + "_" + new Date().getTime();
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+ this.$emit("setCurrentTarget", this.data.list[newIndex]);
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+ },
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+ dragStart(e, list) {
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+ this.$emit("setCurrentTarget", list[e.oldIndex]);
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+ },
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+ handleSelectItem(item) {
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+ this.$emit("setCurrentTarget", item);
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+ },
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+ handleShowRightMenu() {},
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+ handleColAdd(evt, columns, isCopy = false) {
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+ // 重置或者生成key值
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+ const newIndex = evt.newIndex;
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+ const key = columns[newIndex].type + "_" + new Date().getTime();
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+ if (columns[newIndex].key === "" || isCopy) {
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+ this.$set(columns, newIndex, {
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+ ...columns[newIndex],
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+ key,
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+ model: key,
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+ });
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+ if (this.noModel.includes(columns[newIndex].type)) {
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+ // 删除不需要的model属性
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+ delete columns[newIndex].model;
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+ }
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+ if (typeof columns[newIndex].options !== "undefined") {
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+ // 深拷贝options
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+ const optionsStr = JSON.stringify(columns[newIndex].options);
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+ columns[newIndex].options = JSON.parse(optionsStr);
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+ }
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+ if (typeof columns[newIndex].rules !== "undefined") {
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+ // 深拷贝rules
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+ const rulesStr = JSON.stringify(columns[newIndex].rules);
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+ columns[newIndex].rules = JSON.parse(rulesStr);
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+ }
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+ if (typeof columns[newIndex].list !== "undefined") {
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+ // 深拷贝list
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+ columns[newIndex].list = [];
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+ }
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+ if (typeof columns[newIndex].columns !== "undefined") {
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+ // 深拷贝columns
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+ const columnsStr = JSON.stringify(columns[newIndex].columns);
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+ columns[newIndex].columns = JSON.parse(columnsStr);
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+ // 复制时,清空数据
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+ columns[newIndex].columns.forEach((item) => {
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+ item.list = [];
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+ });
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+ }
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+ if (columns[newIndex].type === "table") {
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+ // 深拷贝trs
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+ const trsStr = JSON.stringify(columns[newIndex].trs);
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+ columns[newIndex].trs = JSON.parse(trsStr);
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+ // 复制时,清空数据
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+ columns[newIndex].trs.forEach((item) => {
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+ item.tds.forEach((val) => {
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+ val.list = [];
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+ });
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+ });
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+ }
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+ }
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+ // 深拷贝数据
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+ const listString = JSON.stringify(columns[newIndex]);
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+ columns[newIndex] = JSON.parse(listString);
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+ this.$emit("handleSetSelectItem", columns[newIndex]);
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+ },
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+ endHandler(ent) {
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+ console.log(ent);
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+ },
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+ },
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+};
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+</script>
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+
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+<style scoped lang="scss">
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+.center-area {
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+ // height: calc(100% - 40px);
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+ height: 100%;
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+ background: rgb(221, 221, 221);
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+ padding: 5px;
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+ position: relative;
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+ .hint-text {
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+ position: absolute;
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+ top: 50%;
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+ left: 50%;
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+ transform: translate(-50%, -50%);
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+ }
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+ .draggable-box {
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+ height: 100%;
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+ overflow: auto;
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+ .list-main {
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+ height: 100%;
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+ }
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+ }
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+}
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+</style>
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