fix：不改变原数据；
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小杨
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68a6050ba7
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<template>
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<div class="book-wrap">
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<el-scrollbar height="100%">
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<div class="book-name flex" @click="dialogVisible = true">
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<span>{{ curBook.data.itemtitle }}</span>
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<i class="iconfont icon-xiangyou"></i>
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</div>
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<div class="book-list" v-loading="treeLoading">
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<el-tree :data="treeData" accordion :props="defaultProps" node-key="id"
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:default-expanded-keys="defaultExpandedKeys" :current-node-key="curNode.data.id" highlight-current
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@node-click="handleNodeClick">
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<template #default="{ node }">
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<span :title="node.label" class="tree-label">{{ node.label }}</span>
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</template>
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</el-tree>
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</div>
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</el-scrollbar>
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</div>
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<!--弹窗 选择教材-->
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<el-dialog v-model="dialogVisible" append-to-body :show-close="false" width="550"
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style="border-radius: 10px; padding: 10px 15px;">
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<template #header>
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<div class="choose-book-header flex">
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<span>切换教材</span>
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<i class="iconfont icon-guanbi" @click="dialogVisible = false"></i>
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</div>
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</template>
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<div class="textbook-container">
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<el-scrollbar height="450px">
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<div class="textbook-item flex" v-for="item in subjectList" :class="curBook.data.id == item.id ? 'active-item' : ''"
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:key="item.id" @click="changeBook(item)">
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<img v-if="item.avartar" :src="item.avartar.indexOf('http') === 0 ? item.avartar : BaseUrl + item.avartar" class="textbook-img" alt="">
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<div v-else class="textbook-img">
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<i class="iconfont icon-jiaocaixuanze" style="font-size: 40px;"></i>
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</div>
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<span class="book-name">{{ item.itemtitle }}</span>
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</div>
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</el-scrollbar>
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</div>
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</el-dialog>
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</template>
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<script setup>
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import { onMounted, ref, nextTick, toRaw, reactive } from 'vue';
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import { cloneDeep } from 'lodash'
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import { sessionStore } from '@/utils/store'
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import { useGetSubject } from '@/hooks/useGetSubject'
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const BaseUrl = import.meta.env.VITE_APP_BUILD_BASE_PATH
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// 定义要发送的emit事件
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const emit = defineEmits(['nodeClick', 'changeBook'])
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let useSubject = null
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const subjectList = ref([])
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const dialogVisible = ref(false)
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// 当前教材下面单元内容数据
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const treeData = ref([])
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const defaultProps = {
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children: 'children',
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label: 'itemtitle',
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class: 'textbook-tree'
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}
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// 当前选中的教材
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const curBook = reactive({
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data: {}
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})
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// 当前节点
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const curNode = reactive({
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data:{}
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})
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const treeLoading = ref(false)
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// 默认展开的节点
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const defaultExpandedKeys = ref([])
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//选择教材
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const changeBook = (data) => {
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curBook.data = data
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treeData.value = useSubject.getTreeData(data.id)
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//切换教材后默认展开第一个并选中
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nextTick(() =>{
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defaultExpandedKeys.value = [treeData.value[0].id]
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curNode.data = getLastLevelData(treeData.value)[0]
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handleNodeClick(curNode.data)
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})
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// 延迟关闭 视觉上选中
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setTimeout(() => {
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dialogVisible.value = false
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}, 100);
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}
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const getLastLevelData = (tree) => {
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let lastLevelData = [];
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// 递归函数遍历树形结构
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function traverseTree(nodes) {
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nodes.forEach((node) => {
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// 如果当前节点有子节点，继续遍历
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if (node.children && node.children.length > 0) {
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traverseTree(node.children);
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} else {
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// 如果没有子节点，说明是最后一层的节点
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lastLevelData.push(node);
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}
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});
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}
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// 调用递归函数开始遍历
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traverseTree(tree);
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// 返回最后一层的数据
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return lastLevelData;
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}
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// 根据id 拿到父节点数据
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const findParentByChildId = (treeData, targetNodeId) => {
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// 递归查找函数
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// 遍历树中的每个节点
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for (let node of treeData) {
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// 检查当前节点的子节点是否包含目标子节点 ID
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if (node.children && node.children.some(child => child.id === targetNodeId)) {
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// 如果当前节点的某个子节点的 ID 匹配目标子节点 ID，则当前节点即为父节点
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return node;
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}
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// 如果当前节点没有匹配的子节点，则递归检查当前节点的子节点
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if (node.children) {
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let parentNode = findParentByChildId(node.children, targetNodeId);
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if (parentNode) {
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return parentNode;
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}
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}
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}
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// 如果未找到匹配的父节点，则返回 null 或者适当的默认值
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return null;
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}
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const handleNodeClick = (data) => {
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/**
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* data : 当前节点数据
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*/
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let nodeData = cloneDeep(toRaw(data));
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//增加一个label 之前取的label
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nodeData.label = nodeData.itemtitle
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// 父级节点 如果当前是一级节点 父级则为null
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let parent = {
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id: nodeData.parentid,
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label: nodeData.parenttitle,
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itemtitle: nodeData.parenttitle
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}
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const parentNode = nodeData.parentid ? parent : null
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nodeData.parentNode = parentNode
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let curData = {
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textBook: {
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curBookId: curBook.data.id,
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curBookName: curBook.data.itemtitle,
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curBookImg: BaseUrl + curBook.data.avartar,
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curBookPath: curBook.data.fileurl
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},
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node: nodeData
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}
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// 本地存储:electron-store
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emit('nodeClick', curData)
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}
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onMounted( async () => {
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treeLoading.value = true
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try{
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useSubject = await useGetSubject()
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subjectList.value = sessionStore.get('subject.bookList')
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// 当前教材
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if(sessionStore.get('subject.curBook')){
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curBook.data = sessionStore.get('subject.curBook')
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}
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else{
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curBook.data = subjectList.value[0]
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}
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// 章节"树"
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treeData.value = useSubject.getTreeData(curBook.data.id)
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nextTick(() =>{
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// 默认展开 选中
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if(sessionStore.get('subject.curNode')){
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defaultExpandedKeys.value = sessionStore.get('subject.defaultExpandedKeys')
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curNode.data = sessionStore.get('subject.curNode')
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}else{
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defaultExpandedKeys.value = [treeData.value[0].id]
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curNode.data = getLastLevelData(treeData.value)[0]
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}
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handleNodeClick(curNode.data)
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})
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} finally{
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treeLoading.value = false
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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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.book-wrap {
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width: 300px;
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height: 100%;
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background: #ffffff;
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border-radius: 10px;
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box-shadow: 0px 0px 20px 0px rgba(99, 99, 99, 0.06);
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display: flex;
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flex-direction: column;
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position: relative;
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.book-name {
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background-color: #ffffff;
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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height: 45px;
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padding: 0 15px;
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z-index: 1;
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justify-content: space-between;
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align-items: center;
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color: #3b3b3b;
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cursor: pointer;
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border-bottom: solid #f4f5f7 1px;
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font-size: 15px;
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font-weight: 600;
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border-radius: 10px 10px 0 0;
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}
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.book-list {
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padding: 45px 10px 0 10px;
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flex: 1;
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}
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}
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:deep(.choose-dialog) {
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border-radius: 10px;
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}
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.choose-book-header {
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justify-content: space-between;
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font-size: 15px;
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font-weight: bold;
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.icon-guanbi {
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font-size: 20px;
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cursor: pointer;
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}
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}
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.textbook-container {
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.textbook-item {
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padding: 10px 20px;
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align-items: center;
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border-radius: 5px;
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cursor: pointer;
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.book-name {
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margin-left: 20px;
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color: #3b3b3b;
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font-size: 13px;
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}
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&:hover {
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background: #f4f7f9;
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}
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}
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.active-item {
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background-color: #f4f7f9;
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.book-name {
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color: #368fff;
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font-weight: bold
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}
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}
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.textbook-img {
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width: 55px;
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height: 70px;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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}
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:deep(.el-tree-node) {
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.el-tree-node__content {
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height: 40px;
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border-radius: 10px;
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&:hover {
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background-color: #eaf3ff;
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}
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}
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}
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.tree-label {
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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}
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:deep(.el-tree--highlight-current .el-tree-node.is-current>.el-tree-node__content) {
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background-color: #eaf3ff !important;
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color: #409EFF
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}
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</style>
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@ -20,7 +20,7 @@
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<script setup>
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import { ref, defineExpose } from 'vue'
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import ChooseTextbook from '@/components/choose-textbook/index.vue'
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import ChooseTextbook from './chooseTextbook.vue'
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const dialogVisible = ref(false)
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const getNodeInfo = ref([])
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