diff --git a/package.json b/package.json
index 203fa8e..3510488 100644
--- a/package.json
+++ b/package.json
@@ -88,8 +88,7 @@
     "vue-template-compiler": "^2.6.13"
   },
   "engines": {
-    "node": ">=8.9",
-    "npm": ">= 3.0.0"
+    "node": "^16"
   },
   "browserslist": [
     "> 1%",
diff --git a/src/api/file-history.js b/src/api/file-history.js
new file mode 100644
index 0000000..4b46bf0
--- /dev/null
+++ b/src/api/file-history.js
@@ -0,0 +1,64 @@
+import request from '@/utils/request'
+
+export default {
+  /**
+   * 查询历史文件列表
+   * @param params
+   * @returns {*}
+   */
+  fileHistoryList: function(params) {
+    return request({
+      url: '/history/list',
+      method: 'get',
+      params
+    })
+  },
+  /**
+   * 查询历史文件列表(根据path)
+   * @param params
+   * @returns {*}
+   */
+  fileHistoryPathList: function(params) {
+    return request({
+      url: '/history/path/list',
+      method: 'get',
+      params
+    })
+  },
+  /**
+   * 预览某版本的历史文件
+   * @param params
+   * @returns {*}
+   */
+  previewHistoryText: function(params) {
+    return request({
+      url: '/history/preview/text',
+      method: 'get',
+      params
+    })
+  },
+  /**
+   * 恢复该历史版本
+   * @param params
+   * @returns {*}
+   */
+  recoveryHistory: function(params) {
+    return request({
+      url: '/history/recovery',
+      method: 'put',
+      params
+    })
+  },
+  /**
+   * 删除该历史版本
+   * @param params
+   * @returns {*}
+   */
+  deleteHistory: function(params) {
+    return request({
+      url: '/history/delete',
+      method: 'delete',
+      params
+    })
+  },
+}
diff --git a/src/assets/img/history.svg b/src/assets/img/history.svg
new file mode 100644
index 0000000..6c65697
--- /dev/null
+++ b/src/assets/img/history.svg
@@ -0,0 +1,11 @@
+<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+  "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg t="1684983182221" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="5240"
+     xmlns:xlink="http://www.w3.org/1999/xlink">
+  <path
+    d="M748.896 624.16l-221.44-137.888 0-223.648c0-14.624-11.84-26.496-26.496-26.496s-26.496 11.84-26.496 26.496l0 238.336c0 9.152 4.736 17.664 12.48 22.464l233.92 145.664c4.352 2.688 9.184 4 13.984 4 8.832 0 17.472-4.416 22.496-12.48 7.744-12.416 3.936-28.768-8.48-36.48z"
+    fill="#ffffff" p-id="5241"></path>
+  <path
+    d="M512 0c-282.336 0-512 229.664-512 512s229.664 512 512 512c282.304 0 512-229.696 512-512s-229.696-512-512-512zM512 971.04c-253.12 0-459.04-205.92-459.04-459.04s205.92-459.04 459.04-459.04c253.12 0 459.04 205.92 459.04 459.04s-205.92 459.04-459.04 459.04z"
+    fill="#ffffff" p-id="5242"></path>
+</svg>
diff --git a/src/components/HistoryPopover/index.vue b/src/components/HistoryPopover/index.vue
new file mode 100644
index 0000000..1b6921a
--- /dev/null
+++ b/src/components/HistoryPopover/index.vue
@@ -0,0 +1,217 @@
+<template>
+  <div>
+    <el-popover
+      v-if="hasHistoryVersion"
+      style="margin-right: 15px"
+      :visible-arrow="false"
+      :popper-class="(lightTheme ? 'file-history-popover' : 'dark-file-history-popover') + ' history-popover'"
+      placement="bottom"
+      @show="popoverShow"
+      @hide="popoverHide"
+      v-model="historyListPopoverVisible"
+      trigger="manual">
+      <el-table :data="fileHistoryList" height="300" row-class-name="file-history-row" :class="lightTheme? 'file-history-list' : 'dark-file-history-list'">
+        <el-table-column show-overflow-tooltip width="200" property="metadata.filename" label="文件名"></el-table-column>
+        <el-table-column width="190" property="metadata.time" label="版本日期"></el-table-column>
+        <el-table-column label="操作" width="210">
+          <template slot-scope="scope">
+            <div style="display: flex">
+              <el-button
+                size="mini"
+                :class="lightTheme?'':'dark-button'"
+                @click="viewHistoryFile(scope.row, true, false)" :loading="historyOperationLoading">预览</el-button>
+              <el-popover
+                placement="bottom"
+                width="310"
+                :popper-class="(lightTheme ? 'file-history-popover' : 'dark-file-history-popover') + ' delete-' + scope.row.id"
+                style="margin: 0 10px;"
+                :visible-arrow="false"
+                trigger="click">
+                <p class="el-popconfirm__main">
+                  <i class="el-popconfirm__icon el-icon-question" style="color: rgb(255, 153, 0);"></i>
+                  {{'确定要恢复到'+ scope.row.metadata.time +'吗？当前内容将被覆盖!'}}
+                </p>
+                <div style="text-align: right; margin: 0">
+                  <el-button size="mini" type="text" @click="cancelRecovery(scope.row.id)">取消</el-button>
+                  <el-button type="primary" size="mini" @click="confirmRecoveryHistoryFile(scope.row)">确定</el-button>
+                </div>
+                <el-button slot="reference" size="mini" :id="'recoveryVersionBtn-'+scope.row.id" type="warning" :loading="historyOperationLoading">恢复</el-button>
+              </el-popover>
+              <el-popover
+                placement="bottom"
+                width="310"
+                :popper-class="(lightTheme ? 'file-history-popover' : 'dark-file-history-popover') + ' delete-' + scope.row.id"
+                :visible-arrow="false"
+                trigger="click">
+                <p class="el-popconfirm__main">
+                  <i class="el-popconfirm__icon el-icon-question" style="color: rgb(255, 153, 0);"></i>
+                  {{'确定要删除'+ scope.row.metadata.time +'吗？这将永久删除该历史版本!'}}
+                </p>
+                <div style="text-align: right; margin: 0">
+                  <el-button size="mini" type="text" @click="cancelDelete(scope.row.id)">取消</el-button>
+                  <el-button type="primary" size="mini" @click="confirmDeleteHistoryFile(scope.row.id)">确定</el-button>
+                </div>
+                <el-button slot="reference" size="mini" :id="'deleteVersionBtn-'+scope.row.id" type="danger" :loading="historyOperationLoading">删除</el-button>
+              </el-popover>
+            </div>
+          </template>
+        </el-table-column>
+      </el-table>
+
+      <el-button slot="reference" :style="versionBtnStyle" ref="versionBtn" :size="buttonSize" :class="lightTheme?' history-version-btn':'dark-button history-version-btn'" @click="showOrHidePopover">历史版本</el-button>
+    </el-popover>
+  </div>
+</template>
+
+<script>
+import historyApi from "@/api/file-history"
+
+export default {
+  name: "history-popover",
+  props: {
+    hasHistoryVersion: {
+      type: Object,
+      default: function () {
+        return {metadata: {}}
+      }
+    },
+    lightTheme: {
+      type: Boolean,
+      default: true
+    },
+    historyListPopoverVisible: {
+      type: Boolean,
+      default: false
+    },
+    historyOperationLoading: {
+      type: Boolean,
+      default: false
+    },
+    saved: {
+      type: Boolean,
+      default: true
+    },
+    buttonSize: {
+      type: String,
+      default: 'mini'
+    },
+    transparent: {
+      type: Boolean,
+      default: false
+    }
+  },
+  computed: {
+    versionBtnStyle() {
+      if (this.transparent) {
+        return 'background: #00000000;border: 0;'
+      } else {
+        return ''
+      }
+    }
+  },
+  data() {
+    return {
+      fileHistoryList: [],
+      recoveryHistoryListenerMap: new Map(),
+      deleteHistoryListenerMap: new Map(),
+      historyPageIndex: 1,
+      historyPageSize: 50
+    }
+  },
+  watch: {
+    historyListPopoverVisible(value) {
+      if (value) {
+        document.getElementById('app').addEventListener('click', this.onGlobalClick)
+      } else {
+        // destroy elementListeners
+        document.getElementById('app').removeEventListener('click', this.onGlobalClick)
+      }
+    },
+  },
+  methods: {
+    loadHistoryList(id) {
+      historyApi.fileHistoryList({fileId: id, username: this.$store.state.user.name, pageIndex: this.historyPageIndex, pageSize: this.historyPageSize}).then((res) => {
+        if (res.count && res.count > 0) {
+          this.fileHistoryList = res.data
+          this.$emit('update:hasHistoryVersion', true)
+        } else {
+          this.$emit('update:hasHistoryVersion', false)
+        }
+      })
+    },
+    loadHistoryPathList(pathname) {
+      historyApi.fileHistoryPathList({path: encodeURI(pathname), username: this.$store.state.user.name, pageIndex: this.historyPageIndex, pageSize: this.historyPageSize}).then((res) => {
+        this.fileHistoryList = res.data
+        this.$emit('loadHistoryPathListSuccess', {res: res, pathname: pathname})
+      })
+    },
+    onGlobalClick(event) {
+      let eventClass = event.target.getAttribute('class') || event.target.parentElement.getAttribute('class')
+      if (eventClass && eventClass.indexOf('history-version-btn') > -1) {
+        return
+      }
+      if (this.historyListPopoverVisible) {
+        this.$emit('update:historyListPopoverVisible', false)
+      }
+      if (event.target.getAttribute("data-tab") === "file") {
+        setTimeout(() => {
+          let parentDoc = document.querySelector('.component-only-office')
+          let doc = parentDoc.getElementsByTagName('iframe')[0].contentWindow.document
+          doc.getElementById('fm-btn-history').style.display = 'none'
+        })
+      }
+    },
+    popoverShow() {
+      this.$emit('update:historyListPopoverVisible', true)
+    },
+    showOrHidePopover() {
+      if (this.historyListPopoverVisible) {
+        this.$emit('update:historyListPopoverVisible', false)
+      } else {
+        this.$emit('update:historyListPopoverVisible', true)
+      }
+    },
+    popoverHide() {
+      this.$emit('update:historyListPopoverVisible', false)
+    },
+    viewHistoryFile(historyInfo, diff, recovery) {
+      this.$emit('viewHistoryFile', {historyInfo: historyInfo, diff: diff, recovery: recovery})
+    },
+    cancelDelete(id) {
+      document.getElementById('deleteVersionBtn-'+id).click()
+    },
+    cancelRecovery(id) {
+      document.getElementById('recoveryVersionBtn-'+id).click()
+    },
+    confirmRecoveryHistoryFile(historyInfo) {
+      if (!this.saved) {
+        this.$message({type: 'info', message: "请先保存当前修改的内容"})
+        return
+      }
+      this.cancelRecovery(historyInfo.id)
+      this.$emit('update:historyOperationLoading', true)
+      historyApi.recoveryHistory({id: historyInfo.id}).then((res) => {
+        this.$emit('recoverySuccess', {historyInfo: historyInfo, result: res})
+      })
+    },
+    confirmDeleteHistoryFile(id) {
+      this.cancelDelete(id)
+      this.$emit('update:historyOperationLoading', true)
+      historyApi.deleteHistory({id: id}).then(() => {
+        this.$emit('update:historyOperationLoading', false)
+        this.$message({message: '删除成功',type: 'success'})
+        let deleteIndex = this.fileHistoryList.findIndex(fileHistory => fileHistory.id === id)
+        this.fileHistoryList.splice(deleteIndex, 1)
+        if (this.fileHistoryList.length < 1) {
+          this.$emit('update:hasHistoryVersion', false)
+        }
+      })
+    }
+  }
+}
+
+</script>
+
+<style scoped>
+
+</style>
diff --git a/src/components/Minder/minder.vue b/src/components/Minder/minder.vue
index 723c0e0..577b8bc 100644
--- a/src/components/Minder/minder.vue
+++ b/src/components/Minder/minder.vue
@@ -1,8 +1,25 @@
 <template>
   <div class="minder-editor-container">
     <div class="minder-title" v-show="titleShow">
-      <div class="minder-title-name" :style="{'color': saved ? '': '#ff8200'}">{{title}}</div>
-      <div  class="minder-save"><el-button v-if="!saved" @click="save" size="mini" :loading="saveBtnUpdating">保存</el-button></div>
+      <div class="minder-title-name" :style="{'color': titleColor}">{{title}}</div>
+      <div class="minder-operation">
+        <div style="margin-right: 15px">
+          <el-button v-if="historyVersion.metadata.time" @click="cancelPreview" size="mini">取消预览</el-button>
+        </div>
+        <history-popover
+          ref="historyPopover"
+          :has-history-version.sync="hasHistoryVersion"
+          :history-list-popover-visible.sync="historyListPopoverVisible"
+          :history-operation-loading="!loading.closed"
+          :saved.sync="saved"
+          @viewHistoryFile="viewHistoryFile"
+          @recoverySuccess="recoverySuccess"
+        >
+        </history-popover>
+        <div>
+          <el-button v-if="!saved" @click="save" size="mini" :loading="saveBtnUpdating">保存</el-button>
+        </div>
+      </div>
     </div>
     <div class="quickbar">
       <el-tooltip placement="top" effect="light">
@@ -13,7 +30,7 @@
           <el-slider v-model="zoom" :min="10" :max="300" input-size="mini" tooltip-class="slider-tooltip"></el-slider>
         </div>
       </el-tooltip>
-      <el-tooltip v-if="readOnly!==true" placement="top" effect="light">
+      <el-tooltip v-if="!hasReadOnly" placement="top" effect="light">
         <div>
           <em class="ft icon" title="图形">
             <svg-icon icon-class="graph1"/>
@@ -21,16 +38,16 @@
         </div>
         <div slot="content">
           <ul class="minder-editor-quickul mold" style="margin-bottom: 0;">
-            <li @click="execCommand('template', 'default')"><span class="default"></span></li>
-            <li @click="execCommand('template', 'structure')"><span class="structure"></span></li>
-            <li @click="execCommand('template', 'filetree')"><span class="filetree"></span></li>
-            <li @click="execCommand('template', 'right')"><span class="right"></span></li>
-            <li @click="execCommand('template', 'fish-bone')"><span class="fish-bone"></span></li>
-            <li @click="execCommand('template', 'tianpan')"><span class="tianpan"></span></li>
+            <li @click="execCommand('template', 'default')" title="默认"><span class="default"></span></li>
+            <li @click="execCommand('template', 'structure')" title="结构"><span class="structure"></span></li>
+            <li @click="execCommand('template', 'filetree')" title="树形"><span class="filetree"></span></li>
+            <li @click="execCommand('template', 'right')" title="靠右"><span class="right"></span></li>
+            <li @click="execCommand('template', 'fish-bone')" title="鱼骨"><span class="fish-bone"></span></li>
+            <li @click="execCommand('template', 'tianpan')" title="天盘"><span class="tianpan"></span></li>
           </ul>
         </div>
       </el-tooltip>
-      <el-tooltip v-if="readOnly!==true" placement="top" effect="light">
+      <el-tooltip v-if="!hasReadOnly" placement="top" effect="light">
         <div>
           <em class="ft icon" title="样式">
             <svg-icon icon-class="clothes"/>
@@ -94,10 +111,13 @@ import JSPDF from 'jspdf';
 import api from "@/api/file-api";
 import txtApi from "@/api/markdown-api";
 import Bus from "@/assets/js/bus";
+import historyApi from "@/api/file-history";
+import HistoryPopover from "@/components/HistoryPopover/index.vue";
 
 
 export default {
   name: 'my-mind-editor',
+  components: {HistoryPopover},
   props: {
     file: {
       type: Object,
@@ -118,6 +138,17 @@ export default {
       default: 'minder-component-' + generateMixed(12)
     },
   },
+  computed: {
+    hasReadOnly() {
+      return this.readOnly || this.viewHistory
+    },
+    titleColor() {
+      if (!this.saved) {
+        return '#ff8200'
+      }
+      return ''
+    }
+  },
   data() {
     return {
       minder: null,
@@ -129,7 +160,16 @@ export default {
       zoom: 100,
       saved: true,
       titleShow: false,
-    };
+      currentContext: undefined,
+      currentTitle: undefined,
+      historyVersion: {metadata: {}},
+      hasHistoryVersion: false,
+      historyListPopoverVisible: false,
+      viewHistory: false,
+      loading: {
+        closed: true
+      },
+    }
   },
   watch: {
     'file.id': {
@@ -138,7 +178,7 @@ export default {
           return
         }
         let request = 'previewText'
-        if (this.readOnly) {
+        if (this.hasReadOnly) {
           request = 'sharePreviewText'
         }
         this.content = null
@@ -158,6 +198,9 @@ export default {
           this.init(this.content)
           this.$emit('onReady')
         })
+        this.$nextTick(()=> {
+          this.$refs.historyPopover.loadHistoryList(this.file.id)
+        })
       },
       deep: true,
       immediate: true
@@ -175,9 +218,70 @@ export default {
     document.removeEventListener('keydown', this.ctrlAndS)
   },
   methods: {
-    /**
-     * 保存并关闭
-     */
+    viewHistoryFile({historyInfo, recovery}) {
+      if (!this.saved) {
+        this.$message({type: 'info', message: "请先保存当前修改的内容"})
+        return
+      }
+      let loadingInfo = recovery ? '恢复中...' : '加载中...'
+      this.loading = this.$message({
+        iconClass: 'el-icon-loading',
+        type: 'info',
+        duration: 0,
+        dangerouslyUseHTMLString: true,
+        message: `<span>&nbsp;&nbsp;${loadingInfo}</span>`
+      })
+      historyApi.previewHistoryText({id: historyInfo.id}).then((res) => {
+        this.loading.close()
+
+        if (this.historyListPopoverVisible) {
+          this.historyListPopoverVisible = false
+        }
+        if (recovery) {
+          this.cancelPreview(null, res.data.contentText)
+          this.$message({message: '恢复成功',type: 'success'})
+        } else {
+          this.currentContext = JSON.stringify(this.content)
+          this.currentTitle = this.title
+          this.content = JSON.parse(res.data.contentText)
+          this.bakValue = res.data.contentText
+          this.minder.importJson(this.content)
+          this.historyVersion = historyInfo
+          this.title = `历史版本：${historyInfo.metadata.time}`
+          this.viewHistory = true
+          this.setReadOnly()
+        }
+      }).catch(() => {
+        this.loading.close()
+      })
+    },
+    recoverySuccess({historyInfo}) {
+      this.viewHistoryFile({historyInfo: historyInfo, recovery: true})
+    },
+    cancelPreview(event, currentContext) {
+      if (!currentContext) {
+        currentContext = this.currentContext
+      }
+      this.historyVersion = {metadata: {}}
+      this.content = JSON.parse(currentContext)
+      this.bakValue = currentContext
+      this.minder.importJson(this.content)
+      if (this.currentTitle) {
+        this.title = this.currentTitle
+      }
+      this.viewHistory = false
+      this.setReadOnly()
+    },
+    setReadOnly() {
+      window.__minderReadOnly = this.hasReadOnly
+      if (this.hasReadOnly === true) {
+        this.minder.disable()
+        this.minder.execCommand('Hand')
+        this.isHand = true
+      } else {
+        this.minder.enable()
+      }
+    },
     saveAndClose() {
       this.save()
       this.$emit('onClose')
@@ -247,31 +351,30 @@ export default {
             this.minder.importJson(this.content)
             return
           }
-          window.__minderReadOnly = this.readOnly
           const Editor = require('./editor')
           this.minder = window.editor = new Editor(document.getElementById(this.id)).minder
           this.bakValue = JSON.stringify(this.content)
           this.titleShow = true
           this.minder.importJson(this.content)
-          if (this.readOnly === true) {
-            this.minder.disable()
-            this.minder.execCommand('Hand')
-            this.isHand = true
-          }
-          this.minder.on('contentchange', () => {
-            const newJson = this.minder.exportJson()
-            if (this.bakValue === JSON.stringify(newJson)) {
-              return
-            }
-            this.bakValue = JSON.stringify(newJson)
-            this.content = newJson
-            this.saved = false
-            this.title = `*${this.file.name}`
-            this.$emit('onEdit', this.saved)
-          })
+          this.setReadOnly()
+          this.minder.on('contentchange', () => this.onContentChange())
         }, 300)
       })
     },
+    onContentChange() {
+      const newJson = this.minder.exportJson()
+      if (this.bakValue === JSON.stringify(newJson)) {
+        this.saved = true
+        if (this.title === `*${this.file.name}`) {
+          this.title = this.file.name
+        }
+      } else {
+        this.content = newJson
+        this.saved = false
+        this.title = `*${this.file.name}`
+      }
+      this.$emit('onEdit', this.saved)
+    },
     init(newObj) {
       if (typeof newObj !== "object" || newObj === null) {
         newObj = {
@@ -314,6 +417,7 @@ export default {
         this.saved = true
         this.title = this.file.name
         this.$emit('onEdit', this.saved)
+        this.$refs.historyPopover.loadHistoryList(this.file.id)
       }).catch(() => {
         this.saveBtnUpdating = false
       })
@@ -466,7 +570,8 @@ export default {
       line-height: 40px;
     }
 
-    .minder-save {
+    .minder-operation {
+      display: flex;
       float: right;
       margin-top: -40px;
       margin-right: 30px;
diff --git a/src/components/MonacoEditorVue/index.js b/src/components/MonacoEditorVue/index.js
index 7322a61..e85518b 100644
--- a/src/components/MonacoEditorVue/index.js
+++ b/src/components/MonacoEditorVue/index.js
@@ -162,7 +162,13 @@ export default {
 
     _getValue() {
       let editor = this._getEditor();
-      if(!editor) return '';
+      if(!editor) {
+        if (this.diffEditor) {
+          return this.editor.getModel().modified.getValue()
+        } else {
+          return ''
+        }
+      }
       return editor.getValue();
     },
 
@@ -175,8 +181,8 @@ export default {
       this.editorMounted(editor, monaco);
       if(this.diffEditor){
         editor.onDidUpdateDiff((event) => {
-          const value = this._getValue();
-          this._emitChange(value, event);
+          const value = this._getValue()
+          this._emitChange(value, event)
         });
       }else{
         editor.onDidChangeModelContent(event => {
diff --git a/src/components/ShowFile/ShowFile.vue b/src/components/ShowFile/ShowFile.vue
index 84a6b50..606f31e 100644
--- a/src/components/ShowFile/ShowFile.vue
+++ b/src/components/ShowFile/ShowFile.vue
@@ -3222,6 +3222,12 @@ export default {
           this.officePreviewRow = row
           return
         }
+        if (row.contentType.indexOf('utf-8') > -1) {
+          // 文本文件
+          this.textPreviewRow = row
+          this.textPreviewVisible = true
+          return
+        }
         this.notPreviewDialogVisible = true
       }
     },
diff --git a/src/components/office/Drawio.vue b/src/components/office/Drawio.vue
index 7df6e31..3d164c1 100644
--- a/src/components/office/Drawio.vue
+++ b/src/components/office/Drawio.vue
@@ -2,7 +2,23 @@
   <div class="drawio-content" :style="{'top': readOnly ? '0': '2.5rem'}">
     <div class="drawio-title">
       <div class="drawio-title-name" :style="{'color': saved ? '': '#ff8200'}">{{title}}</div>
-      <div  class="drawio-save"><el-button v-if="!saved" @click="save" size="mini" :loading="saveBtnUpdating">保存</el-button></div>
+      <div class="drawio-operation">
+        <div style="margin-right: 15px">
+          <el-button v-if="historyVersion.metadata.time" @click="cancelPreview" size="mini">取消预览</el-button>
+        </div>
+        <history-popover
+          ref="historyPopover"
+          :has-history-version.sync="hasHistoryVersion"
+          :history-list-popover-visible.sync="historyListPopoverVisible"
+          :history-operation-loading="!loading.closed"
+          :saved.sync="saved"
+          @viewHistoryFile="viewHistoryFile"
+          @recoverySuccess="recoverySuccess"
+        >
+        </history-popover>
+
+        <div><el-button v-if="!saved" @click="save" size="mini" :loading="saveBtnUpdating">保存</el-button></div>
+      </div>
     </div>
     <iframe ref="myFlow" class="drawio-iframe" :src="url" :title="file.name"></iframe>
   </div>
@@ -13,9 +29,12 @@
 import api from '@/api/file-api'
 import txtApi from "@/api/markdown-api"
 import Bus from "@/assets/js/bus";
+import HistoryPopover from "@/components/HistoryPopover/index.vue";
+import historyApi from "@/api/file-history";
 
 export default {
   name: "Drawio",
+  components: {HistoryPopover},
   props: {
     file: {
       type: Object,
@@ -40,7 +59,16 @@ export default {
       saveBtnUpdating: false,
       title: this.file.name,
       saved: true,
-      reday: false
+      ready: false,
+      currentContext: undefined,
+      currentTitle: undefined,
+      historyVersion: {metadata: {}},
+      hasHistoryVersion: false,
+      historyListPopoverVisible: false,
+      viewHistory: false,
+      loading: {
+        closed: true
+      },
     }
   },
   created() {
@@ -90,15 +118,67 @@ export default {
           this.bakData = res.data.contentText
           this.updateContent()
         })
+        this.$nextTick(()=> {
+          this.$refs.historyPopover.loadHistoryList(this.file.id)
+        })
       },
       immediate: true,
       deep: true,
     },
   },
   methods: {
-    /**
-     * 保存并关闭
-     */
+    viewHistoryFile({historyInfo, recovery}) {
+      if (!this.saved) {
+        this.$message({type: 'info', message: "请先保存当前修改的内容"})
+        return
+      }
+      let loadingInfo = recovery ? '恢复中...' : '加载中...'
+      this.loading = this.$message({
+        iconClass: 'el-icon-loading',
+        type: 'info',
+        duration: 0,
+        dangerouslyUseHTMLString: true,
+        message: `<span>&nbsp;&nbsp;${loadingInfo}</span>`
+      })
+      historyApi.previewHistoryText({id: historyInfo.id}).then((res) => {
+        this.loading.close()
+
+        if (this.historyListPopoverVisible) {
+          this.historyListPopoverVisible = false
+        }
+        if (recovery) {
+          this.cancelPreview(null, res.data.contentText)
+          this.$message({message: '恢复成功',type: 'success'})
+        } else {
+          this.currentContext = this.xml
+          this.currentTitle = this.title
+          this.bakData = res.data.contentText
+          this.xml = res.data.contentText
+          this.updateContent()
+          this.historyVersion = historyInfo
+          this.title = `历史版本：${historyInfo.metadata.time}`
+          this.viewHistory = true
+        }
+      }).catch(() => {
+        this.loading.close()
+      })
+    },
+    recoverySuccess({historyInfo}) {
+      this.viewHistoryFile({historyInfo: historyInfo, recovery: true})
+    },
+    cancelPreview(event, currentContext) {
+      if (!currentContext) {
+        currentContext = this.currentContext
+      }
+      this.historyVersion = {metadata: {}}
+      this.xml = currentContext
+      this.bakData = currentContext
+      this.updateContent()
+      if (this.currentTitle) {
+        this.title = this.currentTitle
+      }
+      this.viewHistory = false
+    },
     saveAndClose() {
       this.save()
       this.$emit('onClose')
@@ -127,6 +207,7 @@ export default {
         this.saved = true
         this.title = this.file.name
         this.$emit('onEdit', this.saved)
+        this.$refs.historyPopover.loadHistoryList(this.file.id)
       }).catch(() => {
         this.saveBtnUpdating = false
       })
@@ -136,13 +217,13 @@ export default {
       if (event.source !== editWindow) {
         return
       }
+      let doc = this.$refs.myFlow.contentWindow.document
       const payload = $J.jsonParse(event.data)
       switch (payload.event) {
         case "init":
-          this.reday = true
+          this.ready = true
           this.$emit('onReady')
           this.updateContent()
-          let doc = this.$refs.myFlow.contentWindow.document
           let helpMenu = doc.querySelector('.geMenubarContainer .geMenubar').childNodes[5]
           helpMenu.style.display = 'none'
           break
@@ -155,15 +236,24 @@ export default {
           break
 
         case "autosave":
-          this.bakData = payload.xml
-          this.xml = payload.xml
-          this.saved = false
-          this.title = `*${this.file.name}`
-          this.$emit('onEdit', this.saved)
+          let undo = doc.querySelector('.geSprite.geSprite-undo')
+          if (undo && !this.viewHistory) {
+            let undoClass = undo.parentElement.getAttribute('class')
+            if (undoClass && undoClass.indexOf('mxDisabled') > -1) {
+              this.saved = true
+              if (this.title === `*${this.file.name}`) {
+                this.title = this.file.name
+              }
+            } else {
+              this.xml = payload.xml
+              this.saved = false
+              this.title = `*${this.file.name}`
+            }
+            this.$emit('onEdit', this.saved)
+          }
           break
 
         case "save":
-          // save
           this.save()
           break
       }
@@ -187,18 +277,19 @@ export default {
     z-index: 2001;
     position: absolute;
     top: 0;
-    width: 50%;
-    margin-left: 50%;
+    width: calc(50% + 121px);
+    margin-left: calc(50% - 121px);
     height: 0;
 
     .drawio-title-name {
       line-height: 32px;
     }
 
-    .drawio-save {
+    .drawio-operation {
+      display: flex;
       float: right;
       margin-top: -32px;
-      margin-right: 32px;
+      margin-right: 15px;
       line-height: 32px;
     }
   }
diff --git a/src/components/office/OnlyOfficeEditor.vue b/src/components/office/OnlyOfficeEditor.vue
index f26db6e..85f926e 100644
--- a/src/components/office/OnlyOfficeEditor.vue
+++ b/src/components/office/OnlyOfficeEditor.vue
@@ -1,9 +1,22 @@
 <template>
-  <di>
+  <div>
+
+    <history-popover
+      ref="historyPopover"
+      style="right: 20px;top: 61px;position: absolute;"
+      :transparent="true"
+      :has-history-version.sync="hasHistoryVersion"
+      :history-list-popover-visible.sync="historyListPopoverVisible"
+      :history-operation-loading.sync="historyOperationLoading"
+      :saved.sync="saved"
+      @viewHistoryFile="viewHistoryFile"
+      @recoverySuccess="recoverySuccess"
+    >
+    </history-popover>
     <div class="component-only-office">
       <div :id="this.id" class="placeholder"></div>
     </div>
-  </di>
+  </div>
 </template>
 
 <script>
@@ -12,9 +25,11 @@ import api from "@/api/file-api"
 import fileConfig from "@/utils/file-config";
 import Bus from "@/assets/js/bus";
 import SparkMD5 from 'spark-md5'
+import HistoryPopover from "@/components/HistoryPopover/index.vue";
 
 export default {
   name: "OnlyOfficeEditor",
+  components: {HistoryPopover},
   props: {
     id: {
       type: String,
@@ -48,15 +63,23 @@ export default {
   },
   data() {
     return {
+      docEditorConfig: {},
       docEditor: null,
+      fileKey: '',
       saved: true,
+      hasHistoryVersion: false,
+      historyVersion: {metadata: {}},
+      titleObserver: null,
+      fileHistoryDateList: [],
+      historyListPopoverVisible: false,
+      historyPageIndex: 1,
+      historyPageSize: 50,
+      viewHistory: false,
+      historyOperationLoading: false
     }
   },
   beforeDestroy() {
-    if (this.docEditor !== null) {
-      this.docEditor.destroyEditor()
-      this.docEditor = null
-    }
+    this.destroyEditor()
   },
   computed: {
     fileType() {
@@ -90,6 +113,16 @@ export default {
         })
       },
       immediate: true,
+    },
+    hasHistoryVersion(value) {
+      if (!value) {
+        let parentDoc = document.querySelector('.component-only-office')
+        let doc = parentDoc.getElementsByTagName('iframe')[0].contentWindow.document
+        let versionBtn = doc.getElementById('box-doc-name-history-btn')
+        if (versionBtn) {
+          versionBtn.style.display = 'none'
+        }
+      }
     }
   },
   mounted() {
@@ -101,6 +134,74 @@ export default {
     Bus.$off('previewSaveAndClose')
   },
   methods: {
+    viewHistoryFile({historyInfo}) {
+      const historyUrl = window.location.origin + fileConfig.previewHistoryUrl(historyInfo.id, this.$store.state.user.name, this.$store.state.user.token)
+      this.onRequestHistoryData(null, historyInfo, historyUrl)
+      this.historyListPopoverVisible = false
+
+      let parentDoc = document.querySelector('.component-only-office')
+      let doc = parentDoc.getElementsByTagName('iframe')[0].contentWindow.document
+      const toolbar = doc.getElementById('box-doc-name')
+      // add cancelPreview button
+      if (!doc.getElementById('box-doc-name-cancel-preview')) {
+        let newButton = document.createElement("button")
+        newButton.setAttribute('id', 'box-doc-name-cancel-preview')
+        newButton.classList.add('btn', 'btn-header')
+        newButton.innerHTML = '取消预览'
+        newButton.style.color = '#fff'
+        newButton.style.width = '60px'
+        newButton.addEventListener('click', this.cancelPreview)
+        toolbar.prepend(newButton)
+      }
+      // update title
+      this.updateTitle(doc, historyInfo)
+    },
+    updateTitle(doc, historyInfo) {
+      this.historyVersion = historyInfo
+      let docTitle = doc.getElementById('title-doc-name')
+
+      // Monitor title changes
+      if (this.titleObserver === null) {
+        let that = this
+        this.titleObserver = new MutationObserver(function(mutations) {
+          let el = mutations[mutations.length-1].target
+          setTimeout(() => {
+            el.innerHTML = `历史版本: ${that.historyVersion.metadata.time}`
+          }, 0)
+        })
+        let config = { childList: true, characterData: true }
+        this.titleObserver.observe(docTitle, config)
+      }
+    },
+    recoverySuccess({result}) {
+      console.log('recoverySuccess', result)
+      this.reloadDocument(`${result.data}-${SparkMD5.hash(this.file.id)}`)
+      this.$message({message: '恢复成功',type: 'success'})
+      this.historyListPopoverVisible = false
+      this.historyOperationLoading = false
+    },
+    cancelPreview() {
+      this.reloadDocument()
+    },
+    reloadDocument(key) {
+      this.destroyEditor()
+      this.docEditorConfig.document.key = key ? key : this.fileKey
+      this.docEditor = new DocsAPI.DocEditor(this.id, this.docEditorConfig)
+    },
+    onRequestHistoryData(event, historyInfo, url) {
+      this.docEditor.setHistoryData({
+        "fileType": this.fileType,
+        "key": `${new Date(historyInfo.metadata.time).getTime()}-${SparkMD5.hash(this.file.id)}`,
+        "url":  url,
+        "version": historyInfo.metadata.time,
+      })
+    },
+    onRequestHistory() {
+      this.docEditor.refreshHistory({
+        "currentVersion": 'currentVersion',
+        "history": []
+      })
+    },
     getType(type) {
       switch (type) {
         case 'doc':
@@ -116,91 +217,92 @@ export default {
       }
       return type
     },
-    loadFile() {
-      if (this.docEditor !== null) {
-        this.docEditor.destroyEditor()
-        this.docEditor = null
-      }
+    async loadFile() {
+      this.$nextTick(()=> {
+        this.$refs.historyPopover.loadHistoryList(this.file.id)
+      })
+      this.destroyEditor()
       this.fileUrl = window.location.origin + fileConfig.previewUrl(this.$store.state.user.name, this.file, this.$store.getters.token)
-      if(this.readOnly && window.shareId){
+      if (this.readOnly && window.shareId) {
         this.fileUrl = window.location.origin + fileConfig.publicPreviewUrl(this.file, window.shareId, this.$store.getters.shareToken)
       }
-      let fileKey = `${new Date(this.file.updateDate).getTime()}-${SparkMD5.hash(this.file.id)}`
+      this.fileKey = `${new Date(this.file.updateDate).getTime()}-${SparkMD5.hash(this.file.id)}`
 
       let callbackUrl = fileConfig.officeCallBackUrl(this.$store.getters.token, this.$store.getters.name, this.file.id)
 
-      const config = {
-        "document": {
-          "fileType": this.fileType,
-          "key": fileKey,
-          "title": this.file.name,
-          "url": this.fileUrl,
+      this.docEditorConfig = {
+        document: {
+          fileType: this.fileType,
+          key: this.fileKey,
+          title: this.file.name,
+          url: this.fileUrl,
         },
-        "editorConfig": {
-          "mode": "edit",
-          "lang": "zh",
-          "user": {
-            "id": this.$store.state.user.userId,
-            "name": this.$store.state.user.name
+        editorConfig: {
+          mode: "edit",
+          lang: "zh",
+          user: {
+            id: this.$store.state.user.userId,
+            name: this.$store.state.user.name
           },
-          "customization": {
-            "logo": null,
-            "autosave": false,
-            "comments": true,
-            "compactHeader": false,
-            "compactToolbar": false,
-            "compatibleFeatures": false,
-            "forcesave": false,
-            "help": false,
-            "hideRightMenu": false,
-            "hideRulers": false,
-            "submitForm": false,
-            "about": null,
-            "feedback": false
+          customization: {
+            autosave: false,
+            comments: true,
+            compactHeader: false,
+            compactToolbar: false,
+            compatibleFeatures: false,
+            forcesave: false,
+            help: false,
+            hideRightMenu: false,
+            hideRulers: false,
+            submitForm: false,
+            about: null,
+            feedback: false
           },
-          "callbackUrl": callbackUrl,
+          callbackUrl: callbackUrl,
         }
       }
       if (!this.$pc) {
-        config.type = 'mobile'
+        this.docEditorConfig.type = 'mobile'
       }
       if (this.readOnly) {
-        config.editorConfig.mode = "view"
-        config.editorConfig.callbackUrl = null
-        if (!config.editorConfig.user.id) {
+        this.docEditorConfig.editorConfig.mode = "view"
+        this.docEditorConfig.editorConfig.callbackUrl = null
+        if (!this.docEditorConfig.editorConfig.user.id) {
           let visitor = $J.getStorageInt("visitor")
           if (!visitor) {
             visitor = $J.randNum(1000, 99999)
             $J.setStorage("viewer", visitor)
           }
-          config.editorConfig.user.id = "visitor_" + visitor
-          config.editorConfig.user.name = "Visitor_" + visitor
+          this.docEditorConfig.editorConfig.user.id = "visitor_" + visitor
+          this.docEditorConfig.editorConfig.user.name = "Visitor_" + visitor
         }
       }
-      config.events = {
+      this.docEditorConfig.events = {
         "onAppReady": this.onAppReady,
         "onDocumentReady": this.onDocumentReady,
         "onDocumentStateChange": this.onDocumentStateChange,
+        "onRequestHistory": this.onRequestHistory,
+        "onRequestHistoryData": this.onRequestHistoryData,
       }
       this.$nextTick(() => {
-        this.docEditor = new DocsAPI.DocEditor(this.id, config)
+        this.titleObserver = null
+        this.docEditor = new DocsAPI.DocEditor(this.id, this.docEditorConfig)
       })
     },
+    onClickHistoryVersion(event) {
+      this.historyListPopoverVisible = !this.historyListPopoverVisible
+      event.stopPropagation()
+    },
     onAppReady() {
       this.$emit('onReady')
-      console.log('onAppReady')
     },
     onDocumentReady() {
-      console.log('onDocumentReady')
       let parentDoc = document.querySelector('.component-only-office')
       let doc = parentDoc.getElementsByTagName('iframe')[0].contentWindow.document
 
       if (!this.$pc) {
         parentDoc.style.top = '5rem'
         doc.querySelector('.navbar.main-navbar.navbar-with-logo').style.height = '0'
-        let editorNavbar = doc.getElementById("editor-navbar")
-        console.log(editorNavbar)
-        // editorNavbar.style.display = 'none'
       }
 
       let logo = doc.querySelector('.extra .logo')
@@ -210,6 +312,27 @@ export default {
       about.style.display = 'none'
       this.saveBtnDoc = doc.getElementById('slot-btn-dt-save').getElementsByTagName('button')[0]
 
+      doc.getElementById('id-box-doc-name').style.paddingRight = '0'
+
+      if (this.hasHistoryVersion && !doc.getElementById('box-doc-name-history-btn')) {
+        const toolbar = doc.getElementById('box-doc-name')
+        toolbar.style.justifyContent = 'right'
+        let versionButton = document.createElement("button")
+        versionButton.classList.add('btn', 'btn-header')
+        versionButton.setAttribute('id', 'box-doc-name-history-btn')
+        fetch(require("@/assets/img/history.svg"))
+          .then(response => response.text())
+          .then(data => {
+            let parser = new DOMParser()
+            let svgDoc = parser.parseFromString(data, "image/svg+xml")
+            let svgElement = svgDoc.querySelector('svg')
+            svgElement.setAttribute('style', 'width:16px;height:16px;')
+            versionButton.appendChild(svgElement)
+          })
+        versionButton.addEventListener('click', this.onClickHistoryVersion)
+        doc.addEventListener('click', this.$refs.historyPopover.onGlobalClick)
+        toolbar.appendChild(versionButton)
+      }
     },
     onDocumentStateChange() {
       this.saved = this.saveBtnDoc.classList.contains('disabled')
@@ -217,7 +340,14 @@ export default {
     },
     requestClose() {
       this.$emit('manualSave')
-    }
+    },
+    destroyEditor() {
+      if (this.docEditor !== null) {
+        this.docEditor.destroyEditor()
+        this.docEditor = null
+        this.titleObserver = null
+      }
+    },
   }
 }
 </script>
diff --git a/src/components/preview/OfficePreview.vue b/src/components/preview/OfficePreview.vue
index c0b98e4..3361a4e 100644
--- a/src/components/preview/OfficePreview.vue
+++ b/src/components/preview/OfficePreview.vue
@@ -94,13 +94,13 @@ export default {
           this.previewDocument = document.querySelector('.preview-block')
         })
         this.checkReadOnly(this.file.userId)
-        // 6秒后还没加载出来视为加载失败
+        // 12秒后还没加载出来视为加载失败
         let that = this
         this.delayClosing = setTimeout(function () {
           if (!that.readyShow) {
             that.loadFileFaild()
           }
-        },6000)
+        },12000)
       }
     }
   },
diff --git a/src/components/preview/SimTextPreview.vue b/src/components/preview/SimTextPreview.vue
index a29b6f0..8169f3e 100644
--- a/src/components/preview/SimTextPreview.vue
+++ b/src/components/preview/SimTextPreview.vue
@@ -38,17 +38,33 @@
       <div slot="title" class="simtext-header-title">
         <span v-show="!moblie"><file-path-nav class="title-name" :path="filePathNav" @loadPath="loadPath"></file-path-nav></span>
         <div class="title-extension">
-          <el-button v-if="isShowUpdateBtn" @click="saveAll(false)" :class="lightTheme?'':'dark-button'" size="small" :loading="updating">保存所有</el-button>
-          <el-button
-            v-if="editableTabsValue.endsWith('.md')"
-            :class="lightTheme?'':'dark-button'"
-            size="small"
-            circle
-            @click="changePreviewMode"
-            :title="previewMode?'编辑':'预览'"
+
+          <history-popover
+            ref="historyPopover"
+            :saved="!isShowUpdateBtn"
+            :has-history-version.sync="hasHistoryVersion"
+            :history-list-popover-visible.sync="historyListPopoverVisible"
+            :history-operation-loading="!loading.closed"
+            :light-theme.sync="lightTheme"
+            buttonSize="small"
+            @viewHistoryFile="viewHistoryFile"
+            @recoverySuccess="recoverySuccess"
+            @loadHistoryPathListSuccess="loadHistoryPathListSuccess"
           >
-            <icon :type="previewMode?lightTheme?'icon-quxiaoyulan1':'icon-quxiaoyulan1-copy':lightTheme?'icon-yulan':'icon-yulan-copy'"></icon>
-          </el-button>
+          </history-popover>
+
+          <el-button v-if="isShowUpdateBtn" @click="saveAll(false)" :class="lightTheme?'':'dark-button'" size="small" :loading="updating">保存所有</el-button>
+
+<!--          <el-button-->
+<!--            v-if="editableTabsValue.endsWith('.md')"-->
+<!--            :class="lightTheme?'':'dark-button'"-->
+<!--            size="small"-->
+<!--            circle-->
+<!--            @click="changePreviewMode"-->
+<!--            :title="previewMode?'编辑':'预览'"-->
+<!--          >-->
+<!--            <icon :type="previewMode?lightTheme?'icon-quxiaoyulan1':'icon-quxiaoyulan1-copy':lightTheme?'icon-yulan':'icon-yulan-copy'"></icon>-->
+<!--          </el-button>-->
           <el-button
             :class="lightTheme?'':'dark-button'"
             size="small"
@@ -86,7 +102,7 @@
         </div>
         <div class="editor-resize" :style="{marginLeft: panelReadOnly || moblie ?`0px`:`${contentsWidth}px`,transition: transition}">
           <div class="darg-resize-conter"></div>
-          <i v-show="!panelReadOnly && !moblie " class="editor-resize-conter" icon="el-icon-arrow-right" title="影藏文件目录" @click="hideContents"/>
+          <i v-show="!panelReadOnly && !moblie " class="editor-resize-conter" icon="el-icon-arrow-right" title="隐藏文件目录" @click="hideContents"/>
         </div>
         <div :style="{width: editorWidth-2+'px'}">
           <el-tabs v-model="editableTabsValue" type="card" closable @tab-remove="removeTab" @tab-click="clickTab">
@@ -111,7 +127,7 @@
                   :height="editorHieght"
                   :theme="lightTheme?'vs':'vs-dark'"
                   :language="item.language"
-                  :diffEditor="diffEditor"
+                  :diffEditor="item.hasHistoryVersion"
                   original="..."
                   :options="options"
                   @change="change($event,index)"
@@ -132,6 +148,7 @@
   import _ from "lodash"
   import '@/utils/directives.js'
   import api from '@/api/file-api'
+  import historyApi from '@/api/file-history'
   import markdownApi from '@/api/markdown-api'
 
   import { iconClass,lineWrapping,suffix } from '@/utils/file-type'
@@ -146,10 +163,12 @@
   import Icon from '@/components/Icon/Icon.vue'
 
   import VditorPreview from "@/components/preview/VditorPreview";
+  import HistoryPopover from "@/components/HistoryPopover/index.vue";
 
   export default {
     name: "SimTextPreview",
     components: {
+      HistoryPopover,
       Icon,MonacoEditor,FileTree,FancyTree,MessageDialog,FilePathNav,VditorPreview
     },
     props: {
@@ -174,6 +193,8 @@
         }
       }
     },
+    computed: {
+    },
     data(){
       return{
         lightTheme: true,
@@ -194,19 +215,20 @@
           // 换行
           wordWrap: this.lineWrapping ? 'wordWrapColumn':'',
           wordWrapMinified: true,
-          wrappingIndent: "indent"
+          wrappingIndent: "indent",
+          preview: true,
+          previewMode: 'subwordSmart'
         },
-        diffEditor: false,
         textPreviewVisible: false,
         fullscreen: false,
-        dialogWidth: 0,
+        dialogWidth: 650,
+        minDialogWidth: 650,
         dialogWidthPercent: 0.7,
         lastTransform: undefined,
         contentsWidth: 273,
         editorWidth: 1035,
         editorHieght: 640,
         transition: 'all 500ms ease 0s',
-        content: '',
         newContent: '',
         previewMode: true,
         isShowUpdateBtn: false,
@@ -227,16 +249,20 @@
         editableTabs: [],
         editableValueMap: new Map(),
         abortControllerMap: new Map(),
+        editableVersionMap: new Map(),
+        hasHistoryVersion: false,
+        historyListPopoverVisible: false,
+        historyVersion: {metadata: {}},
         filePathNav: '',
         toolbars: {
           readmodel: true, // 沉浸式阅读
           navigation: true, // 导航目录
-        }
+        },
       }
     },
     mounted() {
       this.$nextTick(()=>{
-        this.dialogWidth = document.body.clientWidth * this.dialogWidthPercent
+        this.setDialogWidth()
       })
     },
     directives: {
@@ -311,13 +337,10 @@
           }
           this.textPreviewVisible = true
 
-          this.requestStream(request, params, 0)
-
           let pathname = res.data.path.substring(1, res.data.path.length) + res.data.name
           if ('previewTextByPath' === request) {
             pathname = `/${res.data.path}/${res.data.name}`
           }
-
           // 加载tabs
           this.editableTabs.push({
             title: res.data.name,
@@ -326,11 +349,16 @@
             status: undefined,//标签状态
             name: pathname
           })
+
+          this.requestStream(request, params, 0)
+
           this.editableTabsValue = pathname
+          // 加载历史版本
+          this.$refs.historyPopover.loadHistoryPathList(pathname)
           // 界面的渲染后的初始化工作
           this.$nextTick(() => {
             this.onDialogDblClick()
-            this.dargDialogSize()
+            this.dragDialogSize()
             this.dragControllerDiv()
             this.setTheme()
           })
@@ -347,9 +375,90 @@
         if(value.endsWith('.md')){
           this.previewMode = false
         }
+        this.hasHistoryVersion = this.editableVersionMap.get(value)
+        if (this.hasHistoryVersion) {
+          let currentIndex = this.editableTabs.findIndex(editable => editable.name === value)
+          const tab = this.editableTabs[currentIndex]
+          this.historyVersion = tab.historyVersion || {metadata: {}}
+        } else {
+          this.historyVersion = {metadata: {}}
+        }
       }
     },
     methods:{
+      setDialogWidth() {
+        this.dialogWidth = document.body.clientWidth * this.dialogWidthPercent
+      },
+      loadHistoryPathListSuccess({res, pathname}) {
+        if (res.count && res.count > 0) {
+          this.editableVersionMap.set(pathname, true)
+        } else {
+          this.editableVersionMap.set(pathname, false)
+        }
+        this.hasHistoryVersion = this.editableVersionMap.get(pathname)
+      },
+      // loading
+      viewHistoryFile({historyInfo, diff, recovery}) {
+        const pathname = this.editableTabsValue
+        let currentIndex = this.editableTabs.findIndex(editable => editable.name === pathname)
+        const tab = this.editableTabs[currentIndex]
+
+        if (this.isShowUpdateBtn) {
+          this.$message({type: 'info', message: "请先保存当前修改的内容"})
+          return
+        }
+
+        const currentContentText = this.getContentText(currentIndex)
+
+        let loadingInfo = recovery ? '恢复中...' : '加载中...'
+        this.loading = this.$message({
+          iconClass: 'el-icon-loading',
+          type: 'info',
+          duration: 0,
+          dangerouslyUseHTMLString: true,
+          message: `<span>&nbsp;&nbsp;${loadingInfo}</span>`
+        })
+        historyApi.previewHistoryText({id: historyInfo.id}).then((res) => {
+          // add new tab
+          let newTab = {
+            title: tab.title,
+            copyTitle: tab.copyTitle,
+            status: undefined,
+            language: tab.language,
+            name: pathname,
+            hasHistoryVersion: !recovery || diff,
+            historyVersion: historyInfo
+          }
+          // remove
+          this.removeTab(pathname)
+          this.$nextTick(() => {
+            this.loading.close()
+            this.editableTabs.splice(currentIndex, 0, newTab)
+            if (diff) {
+              this.setEditMap(currentIndex, currentContentText, res.data.contentText, historyInfo.metadata.time)
+            } else {
+              this.setEditMap(currentIndex, res.data.contentText)
+            }
+            this.editableTabsValue = pathname
+            if (this.historyListPopoverVisible) {
+              this.historyListPopoverVisible = false
+            }
+            if (recovery) {
+              this.historyVersion = {metadata: {}}
+            } else {
+              this.historyVersion = newTab.historyVersion
+            }
+            if (recovery) {
+              this.$message({message: '恢复成功',type: 'success'})
+            }
+          })
+        }).catch(() => {
+          this.loading.close()
+        })
+      },
+      recoverySuccess({historyInfo}) {
+        this.viewHistoryFile({historyInfo: historyInfo, diff: false, recovery: true})
+      },
       abortControllerAbort(index) {
         const map = this.abortControllerMap.get(index)
         if (map !== undefined && map.abort !== undefined) {
@@ -362,7 +471,7 @@
           const readOnly = this.panelReadOnly
           this.options.readOnly = true
           this.abortControllerAbort(index)
-          const queryString = this.buildQueryString(params);
+          const queryString = this.buildQueryString(params)
           let url = "/api/preview/text/stream"
           if (request === 'previewTextByPath') {
             url = "/api/preview/path/text/stream"
@@ -374,8 +483,7 @@
           let result = "";
           // 创建一个节流函数，限制更新频率为每 1500 毫秒一次
           const throttledUpdateContent = _.throttle(text => {
-            this.content = text;
-            this.setEditMap(index, this.content)
+            this.setEditMap(index, text)
           }, 1500);
 
           this.abortControllerMap.set(index, {abort: abortController, throttle: throttledUpdateContent})
@@ -387,8 +495,7 @@
             if (done) {
               // 确保在流结束时取消节流
               throttledUpdateContent.cancel();
-              this.content = result;
-              this.setEditMap(index, this.content)
+              this.setEditMap(index, result)
               this.options.readOnly = readOnly
               return;
             }
@@ -454,7 +561,7 @@
         }
       },
       // 拖动调整窗口大小
-      dargDialogSize(){
+      dragDialogSize(){
         // 右下角
         let nwse = document.querySelector('.el-dialog__body .nwse-resize')
         if(nwse){
@@ -567,7 +674,7 @@
         if(row.isFolder){
           return
         }
-        if(!suffix.simText.includes(row.suffix)){
+        if(!suffix.simText.includes(row.suffix) && row.contentType.indexOf('utf-8') < 0){
           return
         }
         let languages = monaco.languages.getLanguages();
@@ -621,6 +728,9 @@
               }
             }
             this.editableTabsValue = row.path
+
+            // 加载历史版本
+            this.$refs.historyPopover.loadHistoryPathList(row.path)
           }).catch(() => {
             this.loading.close()
           })
@@ -629,15 +739,50 @@
           this.clickTab()
         }
       },
-      setEditMap(index, text) {
+      getContentText(index) {
+        let ref = 'monacoEditor' + index
+        return this.$refs[ref][0]._getValue()
+      },
+      setEditMap(index, text, historyText, historyVersion) {
         this.editableValueMap.set(index, text)
         this.$nextTick(()=> {
           let ref = 'monacoEditor' + index
-          this.$refs[ref][0]._setValue(text)
+          if (historyText) {
+            this.$refs[ref][0]._setModel(text, historyText)
+          } else {
+            this.$refs[ref][0]._setValue(text)
+          }
           if (!this.$pc && this.dialogWidthPercent < 1) {
             this.fullScreen()
           }
         })
+
+        this.$nextTick(() => {
+          const pathname = this.editableTabs[index].name
+          let monacoDiffEditor = document.getElementById(`pane-${pathname}`)
+          let original = monacoDiffEditor.querySelector(".editor.original")
+          let current = monacoDiffEditor.querySelector(".editor.modified")
+          if (original !== null && current !== null) {
+            this.setVersionInfo(original, historyVersion)
+            this.setVersionInfo(current, "当前版本")
+          }
+        })
+
+      },
+      setVersionInfo(editor, versionInfo) {
+        const existingDiv = editor.querySelector('.version-info');
+        if (!existingDiv) {
+          const div = document.createElement('div');
+          div.className = 'version-info';
+          div.textContent = versionInfo;
+          if (editor.firstChild) {
+            editor.insertBefore(div, editor.firstChild);
+          } else {
+            editor.appendChild(div);
+          }
+        } else {
+          existingDiv.textContent = versionInfo
+        }
       },
       containerResize() {
         this.loadEditorSize()
@@ -666,7 +811,7 @@
         }
       },
       loadEditorSize(){
-        this.dialogWidth = document.body.clientWidth * this.dialogWidthPercent
+        this.setDialogWidth()
         if(this.contentsHide){
           this.editorWidth = this.dialogWidth
         }else{
@@ -701,7 +846,7 @@
         this.isSaveDialogVisible = false
         this.isShowUpdateBtn = false
       },
-      // 放弃修改
+      // Abandon Modification
       closeTabDialog(){
         this.isTabSaveDialogVisible = false
         this.editableTabsValue = this.nextActiveName
@@ -716,24 +861,26 @@
         this.$emit('update:status', this.textPreviewVisible)
         this.isSaveDialogVisible = false
         this.isShowUpdateBtn = false
+        this.historyVersion = {metadata: {}}
         this.closeAllTabs()
       },
       change(value,index) {
+        let editableTabValue = this.editableTabs[index]
         if(value === this.editableValueMap.get(index)){
-          if(this.editableTabs[index].copyTitle !== this.editableTabs[index].title){
-            this.editableTabs[index].title = this.editableTabs[index].copyTitle
-            this.editableTabs[index].status = 'Modified'
-            // 没有任何改变
+          if(editableTabValue.copyTitle !== editableTabValue.title){
+            editableTabValue.title = editableTabValue.copyTitle
+            editableTabValue.status = 'Modified'
+            // without any change
             if(this.editableTabs.findIndex(tab=>tab.title !== tab.copyTitle) < 0){
               this.isShowUpdateBtn = false
             }
           }
         }else{
-          if(this.editableTabs[index].copyTitle === this.editableTabs[index].title){
-            this.editableTabs[index].title += '*'
-            this.editableTabs[index].status = 'Modifying'
+          if(editableTabValue.copyTitle === editableTabValue.title){
+            editableTabValue.title += '*'
+            editableTabValue.status = 'Modifying'
             this.isShowUpdateBtn = true
-            this.editableTabs[index].change = value
+            editableTabValue.change = value
           }
         }
       },
@@ -758,7 +905,7 @@
           this.abortControllerAbort(key)
         }
       },
-      save(value,index) {
+      save(value, index) {
         if(value !== this.editableTabs[index].content && this.isShowUpdateBtn){
           this.update(value,this.editableTabs[index].name,index)
         }
@@ -794,6 +941,7 @@
               }
             }
             if(!this.modifyMsg){
+              this.$refs.historyPopover.loadHistoryPathList(this.editableTabsValue)
               this.modifyMsg = this.$message({
                 message: "更新成功",
                 type: 'success',
@@ -815,11 +963,11 @@
         if(this.fullscreen){
           this.lastTransform = dragDom.style.transform
           this.dialogWidthPercent = 1
-          this.dialogWidth = document.body.clientWidth * this.dialogWidthPercent
+          this.setDialogWidth()
           dragDom.style.transform="translate("+0+"px,"+0+"px)";
         }else{
           this.dialogWidthPercent = 0.7
-          this.dialogWidth = document.body.clientWidth * this.dialogWidthPercent
+          this.setDialogWidth()
           let x = (document.body.clientWidth - this.dialogWidth)/2
           let y = (document.body.clientHeight - this.dialogWidth)/2
           if(this.lastTransform){
@@ -880,8 +1028,8 @@
         this.clickTab()
       },
       clickTab() {
-        this.editorWidth += 0.001
-        this.editorHieght += 0.001
+        // this.editorWidth += 0.001
+        // this.editorHieght += 0.001
       },
       removeTab(targetName) {
         let tabs = this.editableTabs;
@@ -900,13 +1048,19 @@
         }
         this.nextActiveName = activeName
         if(this.editableTabs[removeIndex].status !== 'Modifying'){
-          this.editableTabsValue = activeName
           this.editableTabs = tabs.filter(tab => tab.name !== targetName)
         }else{
           this.removeIndex = removeIndex
           this.isTabSaveDialogVisible = true
         }
+        this.editableTabsValue = activeName
         this.abortControllerAbort(removeIndex)
+        setTimeout(()=> {
+          if (this.editableTabs.length < 1) {
+            this.hasHistoryVersion = false
+            this.historyVersion = {metadata: {}}
+          }
+        }, 100)
       },
     }
   }
@@ -983,15 +1137,14 @@
       background: #ececec;
       border: 1px solid #ececec;
     }
-
+    .light-button:hover {
+      background: #DCDFE6;
+    }
     .dark-button {
       background: #3e3e3e;
       border: 1px solid #3e3e3e;
       color: #ffffff;
     }
-    .light-button:hover {
-      background: #DCDFE6;
-    }
     .dark-button:hover {
       color: #409EFF;
       background-color: #181818;
@@ -1407,4 +1560,5 @@
     padding: 20px 30px;
     background-color: #ffffff;
   }
+
 </style>
diff --git a/src/styles/index.scss b/src/styles/index.scss
index 2454428..c4e7c0c 100644
--- a/src/styles/index.scss
+++ b/src/styles/index.scss
@@ -183,3 +183,46 @@ input {
   background-color:transparent;
 
 }
+
+.file-history-popover {
+  .el-popconfirm {
+    width: 310px;
+  }
+}
+.dark-file-history-popover {
+  background-color: #202021;
+  color: #b7b7b7;
+  border: 1px solid #2e2e30;
+  .el-popconfirm {
+    width: 310px;
+  }
+}
+
+.dark-file-history-list.el-table--enable-row-hover {
+  .el-table__body tr:hover>td {
+    background-color: #2e2e30;
+    color: #fff;
+  }
+}
+
+.dark-file-history-list.el-table {
+  background-color: #202021;
+  tr,th,td {
+    background-color: #202021;
+    color: #b7b7b7;
+    border-bottom: 1px solid #3e3e3e;
+  }
+
+  .dark-button {
+    background: #3e3e3e;
+    border: 1px solid #3e3e3e;
+    color: #ffffff;
+  }
+  .dark-button:hover {
+    color: #409EFF;
+    background-color: #181818;
+  }
+}
+.dark-file-history-list.el-table::before {
+  background-color: #3e3e3e;
+}
diff --git a/src/utils/file-config.js b/src/utils/file-config.js
index 1fed9ab..86cc4f8 100644
--- a/src/utils/file-config.js
+++ b/src/utils/file-config.js
@@ -30,6 +30,10 @@ export default {
     }
     return fileUrl
   },
+  // 预览历史文件
+  previewHistoryUrl: function(historyId, name, token) {
+    return `${this.baseUrl}/history/preview/file?id=${historyId}&name=${name}&jmal-token=${token}`
+  },
   // markdown里上传图片后的图片预览地址
   markdownPreviewUrl: function (path){
     return window.location.origin + `${this.baseUrl}${path}`