废弃代码删除
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<template>
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<!-- 小型弹窗，用于完成，删除，保存等操作 -->
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<el-dialog class="l-dialog" :class="lDialog" :title="title" :visible.sync="dialogVisible" :showClose="true"
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:closeOnClickModal="false" @close="handleClose" :append-to-body="true">
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<el-row :gutter="24" style="display: flex; align-items: center">
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<el-col :span="16">
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<el-input v-model="filterText" placeholder="输入关键字" @keyup.enter.native="onHandleSearch">
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</el-input>
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</el-col>
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<el-col :span="8">
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<el-button type="primary" size="small" @click="onHandleSearch">
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查询
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</el-button>
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</el-col>
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</el-row>
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<div class="tree-container" style="max-height: calc(80vh - 190px); overflow-y: auto;">
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<el-tree ref="leftTreeRef" :data="treeDataList" default-expand-all class="left-tree-list"
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@node-click="onHandleNodeClick" :filter-node-method="filterNode" highlight-current node-key="id">
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<span class="custom-tree-node" slot-scope="{ node }">
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<span class="node-label">{{ node.label }}</span>
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</span>
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</el-tree>
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</div>
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<span slot="footer" class="dialog-footer">
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<el-button class="clear-btn" @click="handleClose">取消</el-button>
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<el-button type="primary" class="search-btn" @click="handleSave">确认</el-button>
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</span>
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</el-dialog>
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</template>
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<script>
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import _ from 'lodash'
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import {
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getFileManageTreeApi
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} from '@/api/filesTransfer/apply'
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import { validSecurity } from '@/utils/validate'
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export default {
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name: "FileTree",
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props: ["width", "title", "rowData"],
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data() {
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return {
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lDialog: this.width > 500 ? "w700" : "w500",
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dialogVisible: true,
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isDisabled: true,
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treeDataList: [],
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filterText: '',
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originalTreeData: [], // 保存原始数据,
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selectedNodeId: null, // 保存当前选中的节点ID
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};
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},
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created() {
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this.getLeftTreeList();
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},
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computed: {
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// 过滤后的树数据
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filteredTreeData() {
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if (!this.filterText) {
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return this.treeDataList
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}
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return this.filterTreeData(this.treeDataList)
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}
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},
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methods: {
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// 获取树列表
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async getLeftTreeList() {
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const proId = this.rowData.proId;
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const res = await getFileManageTreeApi({ proId })
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const transformedData = this.convertToVueTree(res.data)
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this.treeDataList = transformedData;
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// 保存原始数据
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this.originalTreeData = JSON.parse(JSON.stringify(this.treeDataList))
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},
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/* 刷新树节点 */
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async handleQuery() {
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// 保存当前选中的节点ID
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const currentNode = this.$refs.leftTreeRef.getCurrentNode();
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if (currentNode) {
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this.selectedNodeId = currentNode.id;
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}
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// 重新获取树数据
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await this.getLeftTreeList();
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// 恢复选中状态
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this.$nextTick(() => {
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if (this.selectedNodeId) {
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this.$refs.leftTreeRef.setCurrentKey(this.selectedNodeId);
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}
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});
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},
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// 树数据过滤 - 支持无限层级转换
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convertToVueTree(data) {
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if (!data || !Array.isArray(data)) {
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return [];
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}
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return data.map(item => {
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const node = {
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id: item.id,
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label: item.contentName,
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level: item.level,
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parentId: item.parentId
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};
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// 递归处理子节点
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if (item.children && Array.isArray(item.children) && item.children.length > 0) {
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const children = this.convertToVueTree(item.children);
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// 只有当子节点不为空时才添加 children 属性
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if (children.length > 0) {
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node.children = children;
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}
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}
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return node;
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});
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},
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// 节点点击事件
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onHandleNodeClick(data) {
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// 保存选中的节点ID
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this.selectedNodeId = data.id;
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},
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// 搜索
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onHandleSearch() {
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// 安全校验
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if (this.filterText && !validSecurity(this.filterText)) {
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this.$message.error('搜索内容包含非法字符，请重新输入')
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return
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}
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this.$refs.leftTreeRef.filter(this.filterText)
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},
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// 树节点过滤方法
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filterNode(value, data) {
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if (!value) return true
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return data.label.indexOf(value) !== -1
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},
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// 递归过滤树数据
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filterTreeData(treeData) {
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const result = []
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for (const node of treeData) {
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const newNode = { ...node }
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if (node.children && node.children.length > 0) {
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const filteredChildren = this.filterTreeData(node.children)
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if (filteredChildren.length > 0) {
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newNode.children = filteredChildren
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result.push(newNode)
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} else if (node.label.indexOf(this.filterText) !== -1) {
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// 如果父节点匹配，保留所有子节点
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result.push(node)
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}
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} else if (node.label.indexOf(this.filterText) !== -1) {
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result.push(newNode)
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}
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}
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return result
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},
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/*关闭弹窗 */
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handleClose() {
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this.dialogVisible = false;
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this.$emit("closeDialog");
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/* setTimeout(() => {
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this.dialogVisible = true;
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}); */
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},
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/**确认弹窗 */
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sureBtnClick() {
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this.dialogVisible = false;
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this.$emit("closeDialog");
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/* setTimeout(() => {
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this.dialogVisible = true;
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}); */
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},
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// 保存数据
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handleSave(){
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this.$emit('getTreeData', this.selectedNodeId);
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this.handleClose();
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}
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}
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};
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</script>
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<style lang="scss" scoped>
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.w700 ::v-deep .el-dialog {
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width: 700px;
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}
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.w500 ::v-deep .el-dialog {
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width: 500px;
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}
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.w500 ::v-deep .el-dialog__header,
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.w700 ::v-deep .el-dialog__header {
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// background: #eeeeee;
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.el-dialog__title {
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font-size: 16px;
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}
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}
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.yxq .el-range-separator {
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margin-right: 7px !important;
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}
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.el-date-editor--daterange.el-input__inner {
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width: 260px;
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}
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.form-item {
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width: 100%;
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}
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.select-style {
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display: flex;
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justify-content: space-between;
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}
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.tree-container {
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margin-top: 10px;
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overflow-x: hidden;
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}
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/* 自定义滚动条样式 */
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.tree-container::-webkit-scrollbar {
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width: 6px;
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background: #f5f5f5;
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}
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.tree-container::-webkit-scrollbar-track {
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background: #f5f5f5;
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border-radius: 3px;
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}
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.tree-container::-webkit-scrollbar-thumb {
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background: #c0c4cc;
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border-radius: 3px;
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transition: background 0.3s;
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}
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.tree-container::-webkit-scrollbar-thumb:hover {
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background: #909399;
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}
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.left-tree-list {
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width: 100%;
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}
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/* 自定义节点行：左右布局，支持多行文本 */
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.custom-tree-node {
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display: flex;
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align-items: center;
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justify-content: space-between;
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width: 100%;
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min-height: 20px;
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padding: 1px 0;
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}
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.node-label {
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flex: 1;
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min-width: 0;
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overflow: visible;
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text-overflow: initial;
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white-space: normal;
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word-break: break-word;
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word-wrap: break-word;
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line-height: 1.2;
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padding-right: 4px;
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}
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/* 使行容器自适应高度，单行文本居中对齐，多行文本顶部对齐 */
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.left-tree-list .el-tree-node__content {
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display: flex;
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align-items: center;
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height: auto;
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min-height: 20px;
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padding: 1px 4px;
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line-height: 1.2;
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}
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/* 多行文本时改为顶部对齐 */
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.left-tree-list .el-tree-node__content:has(.node-label[style*="height"]) {
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align-items: flex-start;
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}
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/* 高亮选中状态同样自适应高度 */
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.el-tree--highlight-current .el-tree-node.is-current>.el-tree-node__content {
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height: auto !important;
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align-items: center;
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line-height: 1.2;
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}
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/* 选中节点的背景色 */
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.left-tree-list .el-tree-node.is-current>.el-tree-node__content {
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background-color: #b3d9ff;
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color: #006e6a !important;
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}
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/* 确保选中节点的文字颜色正确应用 */
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.left-tree-list .el-tree-node.is-current>.el-tree-node__content .el-tree-node__label {
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color: #006e6a !important;
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}
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/* 确保自定义树节点中的文字颜色正确应用 */
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.left-tree-list .el-tree-node.is-current>.el-tree-node__content .custom-tree-node {
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color: #006e6a !important;
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}
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/* 悬停效果 */
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.left-tree-list .el-tree-node__content:hover {
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background-color: #f5f5f5;
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}
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.el-tree--highlight-current .el-tree-node.is-current>.el-tree-node__content {
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height: auto;
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}
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/* 选中节点的悬停效果 */
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.left-tree-list .el-tree-node.is-current>.el-tree-node__content:hover {
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background-color: #8cc8ff;
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}
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.btn-box {
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margin-left: 4px;
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opacity: 0;
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transition: opacity 0.15s ease-in-out;
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flex-shrink: 0;
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display: flex;
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align-items: center;
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gap: 1px;
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}
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/* 悬浮到整行时显示操作按钮 */
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.left-tree-list .el-tree-node__content:hover .btn-box {
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opacity: 1;
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}
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/* 确保树节点内容正确显示 */
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::v-deep .el-tree-node__content {
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display: flex;
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align-items: center;
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cursor: pointer;
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height: auto;
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min-height: 38px;
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padding: 1px 4px;
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}
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/* 树节点展开/收起图标 */
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::v-deep .el-tree-node__expand-icon {
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padding: 1px;
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margin-right: 1px;
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flex-shrink: 0;
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}
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/* 树节点图标容器 */
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::v-deep .el-tree-node__content>.el-tree-node__expand-icon {
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flex-shrink: 0;
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}
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</style>
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<template>
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<!-- 预览文件 -->
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<el-dialog class="l-dialog" :class="lDialog" :title="title" :visible.sync="dialogVisible" :showClose="true"
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:closeOnClickModal="false" @close="handleClose" :append-to-body="true">
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<div style="text-align:center">
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<!-- 图片预览 -->
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<template v-if="isImage">
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<div class="image-toolbar">
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<!-- <el-button size="mini" @click="downloadFile"><i class="el-icon-download"></i> 下载</el-button> -->
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</div>
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<el-image :src="processedFileUrl" :preview-src-list="previewList" fit="contain"
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style="max-width:100%;max-height:70vh">
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<div slot="error" class="image-slot">
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<i class="el-icon-picture-outline"></i>
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</div>
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</el-image>
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</template>
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<!-- PDF 预览 -->
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<template v-else>
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<div class="pdf-container">
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<!-- PDF加载状态 -->
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<div v-if="pdfLoading" class="pdf-loading">
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<i class="el-icon-loading"></i>
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<p>PDF加载中...</p>
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</div>
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<!-- PDF错误状态 -->
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<div v-else-if="pdfError" class="pdf-error">
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<i class="el-icon-warning"></i>
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<p>PDF加载失败</p>
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<el-button size="small" @click="retryLoadPdf">重试</el-button>
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</div>
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<!-- PDF内容 -->
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<div v-else class="pdf-content">
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<!-- PDF工具栏 -->
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<div class="pdf-toolbar">
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<div class="pdf-controls">
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<el-button size="mini" :disabled="currentPage <= 1" @click="prevPage">
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<i class="el-icon-arrow-left"></i> 上一页
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</el-button>
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<span class="page-info">
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{{ currentPage }} / {{ numPages }}
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</span>
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<el-button size="mini" :disabled="currentPage >= numPages" @click="nextPage">
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下一页 <i class="el-icon-arrow-right"></i>
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</el-button>
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</div>
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<div class="pdf-actions">
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<!-- <el-button size="mini" @click="downloadFile"><i class="el-icon-download"></i> 下载</el-button> -->
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</div>
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</div>
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<!-- PDF显示区域 -->
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<div class="pdf-viewer" @wheel="handleWheel" ref="pdfViewer">
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<pdf :src="processedFileUrl" :page="currentPage" @num-pages="numPages = $event" @loaded="onPdfLoaded"
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@error="onPdfError" style="width:100%;height:70vh" />
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</div>
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</div>
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</div>
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</template>
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</div>
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</el-dialog>
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</template>
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<script>
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import pdf from 'vue-pdf'
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import { getFileAsBase64Api } from '@/api/archivesManagement/fileManager/fileManager'
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export default {
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name: 'ViewFile',
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props: ['width', 'hight', 'dataForm', 'title', 'disabled', 'isAdd', 'rowData', 'projectId'],
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components: { pdf },
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data() {
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return {
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dialogVisible: true,
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lDialog: this.width > 500 ? "w700" : "w500",
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fileUrl: '', // 实际文件地址
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fileName: '', // 用于从文件名判断类型
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previewList: [], // 预览组（可只放当前图片）
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// PDF相关状态
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pdfLoading: false,
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pdfError: false,
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currentPage: 1,
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numPages: 0,
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// 滚轮翻页相关
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wheelTimeout: null,
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isWheelScrolling: false
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}
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},
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computed: {
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isImage() {
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// 允许的图片类型
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const exts = ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.webp']
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const url = (this.fileUrl || '')
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const name = (this.fileName || '').toLowerCase()
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return exts.some(ext => url.endsWith(ext) || name.endsWith(ext))
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},
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isPdf() {
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// 判断是否为PDF文件
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const exts = ['.pdf']
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const url = (this.fileUrl || '')
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const name = (this.fileName || '').toLowerCase()
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return exts.some(ext => url.endsWith(ext) || name.endsWith(ext))
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},
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processedFileUrl() {
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// 处理文件URL，为PDF和图片添加data前缀
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if (this.fileUrl && !this.fileUrl.startsWith('data:')) {
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if (this.isPdf) {
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return `data:application/pdf;base64,${this.fileUrl}`
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} else if (this.isImage) {
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// 根据图片类型添加相应的MIME类型
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const imageType = this.getImageMimeType()
|
||||
return `data:${imageType};base64,${this.fileUrl}`
|
||||
}
|
||||
}
|
||||
return this.fileUrl
|
||||
}
|
||||
},
|
||||
created() {
|
||||
this.getFileAsBase64();
|
||||
},
|
||||
|
||||
watch: {
|
||||
isPdf(newVal) {
|
||||
if (newVal) {
|
||||
this.resetPdfState();
|
||||
}
|
||||
}
|
||||
},
|
||||
methods: {
|
||||
handleClose() {
|
||||
this.dialogVisible = false
|
||||
this.$emit('closeDialog')
|
||||
},
|
||||
/* 获取文件的base64 */
|
||||
getFileAsBase64() {
|
||||
if (this.isPdf) {
|
||||
this.pdfLoading = true;
|
||||
this.pdfError = false;
|
||||
}
|
||||
getFileAsBase64Api({ id: this.rowData.fileId }).then(res => {
|
||||
const obj = res.data;
|
||||
this.fileUrl = obj?.fileBase64 || ''
|
||||
this.fileName = obj?.fileName || ''
|
||||
|
||||
// 预览组（如果你有多张，可放数组；没有就放当前一张）
|
||||
if (this.isImage && this.fileUrl) {
|
||||
this.previewList = [this.processedFileUrl]
|
||||
}
|
||||
}).catch(error => {
|
||||
if (this.isPdf) {
|
||||
this.pdfError = true;
|
||||
this.pdfLoading = false;
|
||||
}
|
||||
console.error('获取文件失败:', error);
|
||||
})
|
||||
},
|
||||
|
||||
// PDF相关方法
|
||||
resetPdfState() {
|
||||
this.currentPage = 1;
|
||||
this.numPages = 0;
|
||||
this.pdfLoading = false;
|
||||
this.pdfError = false;
|
||||
this.isWheelScrolling = false;
|
||||
if (this.wheelTimeout) {
|
||||
clearTimeout(this.wheelTimeout);
|
||||
this.wheelTimeout = null;
|
||||
}
|
||||
},
|
||||
|
||||
onPdfLoaded() {
|
||||
this.pdfLoading = false;
|
||||
this.pdfError = false;
|
||||
},
|
||||
|
||||
onPdfError(error) {
|
||||
this.pdfLoading = false;
|
||||
this.pdfError = true;
|
||||
console.error('PDF加载失败:', error);
|
||||
},
|
||||
|
||||
retryLoadPdf() {
|
||||
this.resetPdfState();
|
||||
this.getFileAsBase64();
|
||||
},
|
||||
|
||||
prevPage() {
|
||||
if (this.currentPage > 1) {
|
||||
this.currentPage--;
|
||||
}
|
||||
},
|
||||
|
||||
nextPage() {
|
||||
if (this.currentPage < this.numPages) {
|
||||
this.currentPage++;
|
||||
}
|
||||
},
|
||||
// 下载文件（图片或PDF，base64 -> Blob，避免在控制台暴露base64）
|
||||
downloadFile() {
|
||||
if (!this.fileUrl) return
|
||||
const filename = this.fileName || '文件'
|
||||
|
||||
// 推断 MIME 类型
|
||||
let mime = this.isPdf ? 'application/pdf' : this.getImageMimeType()
|
||||
|
||||
// 如果带有 data: 前缀，从中解析 mime 与数据体
|
||||
let base64Data = this.fileUrl
|
||||
if (typeof base64Data === 'string' && base64Data.startsWith('data:')) {
|
||||
try {
|
||||
const parts = base64Data.split(',')
|
||||
const header = parts[0]
|
||||
const dataPart = parts[1]
|
||||
const match = header.match(/^data:(.*?);base64$/)
|
||||
if (match && match[1]) mime = match[1]
|
||||
base64Data = dataPart
|
||||
} catch (e) {
|
||||
// 解析失败则按原样处理
|
||||
}
|
||||
}
|
||||
|
||||
const blob = this.base64ToBlob(base64Data, mime)
|
||||
const url = URL.createObjectURL(blob)
|
||||
const a = document.createElement('a')
|
||||
a.style.display = 'none'
|
||||
a.href = url
|
||||
a.download = filename
|
||||
document.body.appendChild(a)
|
||||
a.click()
|
||||
document.body.removeChild(a)
|
||||
URL.revokeObjectURL(url)
|
||||
},
|
||||
|
||||
// base64(不含data前缀) 转 Blob
|
||||
base64ToBlob(base64, mime) {
|
||||
const byteChars = atob(base64)
|
||||
const sliceSize = 1024
|
||||
const byteArrays = []
|
||||
for (let offset = 0; offset < byteChars.length; offset += sliceSize) {
|
||||
const slice = byteChars.slice(offset, offset + sliceSize)
|
||||
const byteNumbers = new Array(slice.length)
|
||||
for (let i = 0; i < slice.length; i++) {
|
||||
byteNumbers[i] = slice.charCodeAt(i)
|
||||
}
|
||||
const byteArray = new Uint8Array(byteNumbers)
|
||||
byteArrays.push(byteArray)
|
||||
}
|
||||
return new Blob(byteArrays, { type: mime || 'application/octet-stream' })
|
||||
},
|
||||
|
||||
// 获取图片MIME类型
|
||||
getImageMimeType() {
|
||||
// 根据文件扩展名返回对应的MIME类型
|
||||
const name = (this.fileName || '').toLowerCase()
|
||||
if (name.endsWith('.jpg') || name.endsWith('.jpeg')) {
|
||||
return 'image/jpeg'
|
||||
} else if (name.endsWith('.png')) {
|
||||
return 'image/png'
|
||||
} else if (name.endsWith('.gif')) {
|
||||
return 'image/gif'
|
||||
} else if (name.endsWith('.bmp')) {
|
||||
return 'image/bmp'
|
||||
} else if (name.endsWith('.webp')) {
|
||||
return 'image/webp'
|
||||
}
|
||||
// 默认返回jpeg
|
||||
return 'image/jpeg'
|
||||
},
|
||||
|
||||
// 处理滚轮事件
|
||||
handleWheel(event) {
|
||||
// 阻止默认滚动行为
|
||||
event.preventDefault();
|
||||
|
||||
// 如果正在滚轮翻页中，忽略新的滚轮事件
|
||||
if (this.isWheelScrolling) {
|
||||
return;
|
||||
}
|
||||
|
||||
// 设置滚轮翻页状态
|
||||
this.isWheelScrolling = true;
|
||||
|
||||
// 清除之前的定时器
|
||||
if (this.wheelTimeout) {
|
||||
clearTimeout(this.wheelTimeout);
|
||||
}
|
||||
|
||||
// 根据滚轮方向翻页
|
||||
if (event.deltaY > 0) {
|
||||
// 向下滚动 - 下一页
|
||||
this.nextPage();
|
||||
} else if (event.deltaY < 0) {
|
||||
// 向上滚动 - 上一页
|
||||
this.prevPage();
|
||||
}
|
||||
|
||||
// 设置定时器，防止滚轮翻页过于频繁
|
||||
this.wheelTimeout = setTimeout(() => {
|
||||
this.isWheelScrolling = false;
|
||||
}, 300);
|
||||
}
|
||||
},
|
||||
}
|
||||
</script>
|
||||
<style lang="scss" scoped>
|
||||
.w700 ::v-deep .el-dialog {
|
||||
width: 700px;
|
||||
}
|
||||
|
||||
.w500 ::v-deep .el-dialog {
|
||||
width: 500px;
|
||||
}
|
||||
|
||||
.w500 ::v-deep .el-dialog__header,
|
||||
.w700 ::v-deep .el-dialog__header {
|
||||
// background: #eeeeee;
|
||||
|
||||
.el-dialog__title {
|
||||
font-size: 16px;
|
||||
}
|
||||
}
|
||||
|
||||
.yxq .el-range-separator {
|
||||
margin-right: 7px !important;
|
||||
}
|
||||
|
||||
.el-date-editor--daterange.el-input__inner {
|
||||
width: 260px;
|
||||
}
|
||||
|
||||
.form-item {
|
||||
width: 100%;
|
||||
}
|
||||
|
||||
.select-style {
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
}
|
||||
|
||||
.image-slot {
|
||||
width: 100%;
|
||||
height: 240px;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
color: #909399;
|
||||
font-size: 24px;
|
||||
}
|
||||
|
||||
/* PDF预览样式 */
|
||||
.pdf-container {
|
||||
width: 100%;
|
||||
height: 70vh;
|
||||
position: relative;
|
||||
}
|
||||
|
||||
.pdf-loading,
|
||||
.pdf-error {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
height: 100%;
|
||||
color: #909399;
|
||||
font-size: 16px;
|
||||
}
|
||||
|
||||
.pdf-loading i {
|
||||
font-size: 32px;
|
||||
margin-bottom: 16px;
|
||||
animation: rotating 2s linear infinite;
|
||||
}
|
||||
|
||||
.pdf-error i {
|
||||
font-size: 32px;
|
||||
margin-bottom: 16px;
|
||||
color: #F56C6C;
|
||||
}
|
||||
|
||||
.pdf-content {
|
||||
height: 100%;
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
}
|
||||
|
||||
.pdf-toolbar {
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
align-items: center;
|
||||
padding: 8px 12px;
|
||||
background: #f5f5f5;
|
||||
border-bottom: 1px solid #e4e7ed;
|
||||
flex-shrink: 0;
|
||||
}
|
||||
|
||||
.pdf-controls {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 8px;
|
||||
}
|
||||
|
||||
.image-toolbar {
|
||||
display: flex;
|
||||
justify-content: flex-end;
|
||||
padding: 4px 0 8px 0;
|
||||
}
|
||||
|
||||
.pdf-actions {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 8px;
|
||||
}
|
||||
|
||||
.page-info {
|
||||
font-size: 14px;
|
||||
color: #606266;
|
||||
min-width: 60px;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
.pdf-viewer {
|
||||
flex: 1;
|
||||
overflow: hidden;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
background: #f8f9fa;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
/* 移除滚动条样式，因为现在使用滚轮翻页 */
|
||||
|
||||
@keyframes rotating {
|
||||
0% {
|
||||
transform: rotate(0deg);
|
||||
}
|
||||
|
||||
100% {
|
||||
transform: rotate(360deg);
|
||||
}
|
||||
}
|
||||
</style>
|
||||
Loading…
Reference in New Issue