diff --git a/frontend/src/components/dirent-detail/detail-list-view.js b/frontend/src/components/dirent-detail/detail-list-view.js
index 701f7ddc6c..2353ddd658 100644
--- a/frontend/src/components/dirent-detail/detail-list-view.js
+++ b/frontend/src/components/dirent-detail/detail-list-view.js
@@ -6,6 +6,7 @@ import { Utils } from '../../utils/utils';
 import EditFileTagDialog from '../dialog/edit-filetag-dialog';
 import ModalPortal from '../modal-portal';
 import RelatedFileDialogs from '../dialog/related-file-dialogs';
+import { seafileAPI } from '../../utils/seafile-api';
 
 const propTypes = {
   repoInfo: PropTypes.object.isRequired,
@@ -27,6 +28,7 @@ class DetailListView extends React.Component {
     this.state = {
       isEditFileTagShow: false,
       showRelatedFileDialog: false,
+      repo: {},
     };
   }
 
@@ -69,6 +71,28 @@ class DetailListView extends React.Component {
       showRelatedFileDialog: false,
     });
   }
+
+  getRepoInfo = (repoID) => {
+    seafileAPI.listRepos({type: 'mine'}).then((res) => {
+      let repoList = res.data.repos;
+      for (let i = 0, length = repoList.length; i < length; i++) {
+        if (repoList[i].repo_id === repoID) {
+          this.setState({ repo: repoList[i] });
+          break;
+        }
+      }
+    });
+  }
+
+  componentDidMount() {
+    this.getRepoInfo(this.props.repoID);
+  }
+
+  componentWillReceiveProps(nextProps) {
+    if (nextProps.repoID !== this.props.repoID) {
+      this.getRepoInfo(nextProps.repoID);
+    }
+  }
   
   render() {
     let { direntType, direntDetail, fileTagList, relatedFiles } = this.props;
@@ -86,6 +110,20 @@ class DetailListView extends React.Component {
           </tbody>
         </table>
       );
+    } else if (direntType === 'repo') {
+      const repoInfo = this.props.repoInfo;
+      return (
+        <table className="table-thead-hidden">
+          <thead>
+            <tr><th width="35%"></th><th width="65%"></th></tr>
+          </thead>
+          <tbody>
+            <tr><th>{gettext('File Count')}</th><td>{repoInfo.file_count}</td></tr>
+            <tr><th>{gettext('Size')}</th><td>{repoInfo.size}</td></tr>
+            <tr><th>{gettext('Last Update')}</th><td>{moment(this.state.repo.last_modified).format('YYYY-MM-DD')}</td></tr>
+          </tbody>
+        </table>
+      );
     } else {
       return (
         <Fragment>
diff --git a/frontend/src/components/dirent-detail/dirent-details.js b/frontend/src/components/dirent-detail/dirent-details.js
index 5340ed3473..696601fcca 100644
--- a/frontend/src/components/dirent-detail/dirent-details.js
+++ b/frontend/src/components/dirent-detail/dirent-details.js
@@ -2,6 +2,7 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { Utils } from '../../utils/utils';
 import { seafileAPI } from '../../utils/seafile-api';
+import Dirent from '../../models/dirent';
 import DetailListView from './detail-list-view';
 import RepoInfo from '../../models/repo-info';
 import FileTag from '../../models/file-tag';
@@ -25,9 +26,16 @@ class DirentDetail extends React.Component {
       repoInfo: null,
       fileTagList: [],
       relatedFiles: [],
+      currentFolderDirent: null,
     };
   }
 
+  componentWillMount() {
+    if (!this.props.dirent.name) {
+      this.getCurrentFolderDirent();
+    }
+  }
+
   componentDidMount() {
     let { dirent, path, repoID } = this.props;
     let direntPath = Utils.joinPath(path, dirent.name);
@@ -46,7 +54,7 @@ class DirentDetail extends React.Component {
 
   updateDetailView = (dirent, direntPath) => {
     let repoID = this.props.repoID;
-    if (dirent.type === 'file') {
+    if (dirent && dirent.type === 'file') {
       seafileAPI.getFileInfo(repoID, direntPath).then(res => {
         this.setState({
           direntType: 'file',
@@ -76,16 +84,44 @@ class DirentDetail extends React.Component {
           });
         }
       });
-    } else {
+    } else if (this.props.path !== '/') {
+      const dirPath = dirent.name ? direntPath : this.props.path;
+      seafileAPI.getDirInfo(repoID, dirPath).then(res => {
+        this.setState({
+          direntType: 'dir',
+          direntDetail: res.data
+        });
+      });
+    } else if (this.props.path === '/' && dirent.name) {
       seafileAPI.getDirInfo(repoID, direntPath).then(res => {
         this.setState({
           direntType: 'dir',
           direntDetail: res.data
         });
       });
+    } else if (this.props.path === '/' && !dirent.name) {
+      this.setState({
+        direntType: 'repo',
+        direntDetail: {},
+      });
     }
   }
 
+  getCurrentFolderDirent = () => {
+    const path = this.props.path;
+    const parentPath = path.slice(0, path.lastIndexOf('/'));
+    seafileAPI.listDir(this.props.repoID, parentPath).then(res => {
+      try {
+        res.data.dirent_list.forEach((dirent) => {
+          if ((dirent.parent_dir + dirent.name) === path) throw dirent;
+        });
+      } catch (dirent) {
+        let dirent = new Dirent(dirent);
+        this.setState({ currentFolderDirent: dirent });
+      }
+    });
+  }
+
   onFileTagChanged = (dirent, direntPath) => {
     this.updateDetailView(dirent, direntPath);
     this.props.onFileTagChanged(dirent, direntPath);
@@ -98,9 +134,26 @@ class DirentDetail extends React.Component {
   }
 
   render() {
-    let { dirent } = this.props;
-    let smallIconUrl = Utils.getDirentIcon(dirent);
-    let bigIconUrl = Utils.getDirentIcon(dirent, true);
+    let { dirent, path, currentRepoInfo } = this.props;
+    let smallIconUrl, bigIconUrl, direntName;
+    let folderDirent = this.state.currentFolderDirent;
+
+    if (dirent.name) {
+      // selected something
+      smallIconUrl = Utils.getDirentIcon(dirent);
+      bigIconUrl = Utils.getDirentIcon(dirent, true);
+      direntName = dirent.name;
+    } else if (!dirent.name && path === '/') {
+      // seleted nothing and parent is repo
+      smallIconUrl = Utils.getLibIconUrl(currentRepoInfo);
+      bigIconUrl = Utils.getLibIconUrl(currentRepoInfo, true);
+      direntName = currentRepoInfo.repo_name;
+    } else if (!dirent.name && path !== '/') {
+      // select nothing and parent is folder
+      smallIconUrl = folderDirent && Utils.getDirentIcon(folderDirent);
+      bigIconUrl = folderDirent && Utils.getDirentIcon(folderDirent, true);
+      direntName = folderDirent && folderDirent.name;
+    }
 
     return (
       <div className="detail-container">
@@ -108,7 +161,7 @@ class DirentDetail extends React.Component {
           <div className="detail-control sf2-icon-x1" onClick={this.props.onItemDetailsClose}></div>
           <div className="detail-title dirent-title">
             <img src={smallIconUrl} width="24" height="24" alt="" />{' '}
-            <span className="name ellipsis" title={dirent.name}>{dirent.name}</span>
+            <span className="name ellipsis" title={direntName}>{direntName}</span>
           </div>
         </div>
         <div className="detail-body dirent-info">
@@ -121,7 +174,7 @@ class DirentDetail extends React.Component {
                 repoInfo={this.state.repoInfo}
                 path={this.props.path}
                 repoID={this.props.repoID}
-                dirent={this.props.dirent}
+                dirent={this.props.dirent || folderDirent}
                 direntType={this.state.direntType}
                 direntDetail={this.state.direntDetail} 
                 fileTagList={this.state.fileTagList}
diff --git a/frontend/src/components/toolbar/view-mode-toolbar.js b/frontend/src/components/toolbar/view-mode-toolbar.js
index f664519207..a83d84b38e 100644
--- a/frontend/src/components/toolbar/view-mode-toolbar.js
+++ b/frontend/src/components/toolbar/view-mode-toolbar.js
@@ -21,11 +21,16 @@ class ViewModeToolbar extends React.Component {
   render() {
     let baseClass = 'btn btn-secondary btn-icon sf-view-mode-btn ';
     return (
-      <div className="view-mode btn-group">
-        <button className={`${baseClass} sf2-icon-list-view ${this.props.currentMode === 'list' ? 'current-mode' : ''}`} id='list' title={gettext('List')} onClick={this.switchViewMode}></button>
-        {/* <button className={`${baseClass} sf2-icon-grid-view ${this.props.currentMode === 'grid' ? 'current-mode' : ''}`} id='grid' title={gettext('Grid')} onClick={this.switchViewMode}></button> */}
-        <button className={`${baseClass} sf2-icon-two-columns ${this.props.currentMode === 'column' ? 'current-mode' : ''}`} id='column' title={gettext('Column')} onClick={this.switchViewMode}></button>
-      </div>
+      <React.Fragment>
+        <div className="view-mode btn-group">
+          <button className={`${baseClass} sf2-icon-list-view ${this.props.currentMode === 'list' ? 'current-mode' : ''}`} id='list' title={gettext('List')} onClick={this.switchViewMode}></button>
+          {/* <button className={`${baseClass} sf2-icon-grid-view ${this.props.currentMode === 'grid' ? 'current-mode' : ''}`} id='grid' title={gettext('Grid')} onClick={this.switchViewMode}></button> */}
+          <button className={`${baseClass} sf2-icon-two-columns ${this.props.currentMode === 'column' ? 'current-mode' : ''}`} id='column' title={gettext('Column')} onClick={this.switchViewMode}></button>
+        </div>
+        <div className="dirent-detail-btn btn-group">
+          <button className={`${baseClass} ml-1 fas fa-info`} id='detail' title={gettext('Detail')} onClick={this.switchViewMode}></button>
+        </div>
+      </React.Fragment>
     );
   }
 }
diff --git a/frontend/src/css/dirent-detail.css b/frontend/src/css/dirent-detail.css
index 59655c6fd6..61d836f2b6 100644
--- a/frontend/src/css/dirent-detail.css
+++ b/frontend/src/css/dirent-detail.css
@@ -13,6 +13,7 @@
   line-height: 2.5rem;
   background-color: #f9f9f9;
   border-bottom: 1px solid #e8e8e8;
+  height: 40px;
 }
 
 .detail-header .detail-control {
diff --git a/frontend/src/css/layout.css b/frontend/src/css/layout.css
index b6a4e06eee..3c0677b15b 100644
--- a/frontend/src/css/layout.css
+++ b/frontend/src/css/layout.css
@@ -52,6 +52,7 @@
   flex-shrink: 0;
   background: #f4f4f7;
   border-bottom: 1px solid #e8e8e8;
+  z-index: 100;
 }
 
 @media (max-width: 767px) {
@@ -140,8 +141,30 @@
 }
 
 .cur-view-detail {
-  flex: 0 0 20rem;
-  display: flex;
+  display: block;
+  position: absolute;
+  right: 0;
+  background-color: #fff;
+  width: 300px;
+  height: calc(100% - 50px);
+  box-shadow: -1px 0 3px 0 #ccc;
+  top: 49px;
+  animation: move .5s ease-in-out 1;
+}
+
+@keyframes move {
+  from {
+    right: -500px;
+    opacity: 0.5;
+  }
+  to {
+    right: 0px;
+    opacity: 1;
+  }
+}
+
+.cur-view-detail .detail-container {
+  height: 100%;
 }
 
 /* for reach/router */
diff --git a/frontend/src/css/toolbar.css b/frontend/src/css/toolbar.css
index 3e125d9f25..21af69c1a9 100644
--- a/frontend/src/css/toolbar.css
+++ b/frontend/src/css/toolbar.css
@@ -61,6 +61,11 @@
   border-radius: 0 !important;
 }
 
+.dirent-detail-btn .sf-view-mode-btn {
+  font-size: 15px;
+  border-radius: 3px !important;
+}
+
 .sf-view-mode-btn.current-mode {
   background-color: #ccc !important;
   color: #fff !important;
diff --git a/frontend/src/pages/lib-content-view/lib-content-container.js b/frontend/src/pages/lib-content-view/lib-content-container.js
index b7dbf94587..30c31eba75 100644
--- a/frontend/src/pages/lib-content-view/lib-content-container.js
+++ b/frontend/src/pages/lib-content-view/lib-content-container.js
@@ -83,7 +83,7 @@ class LibContentContainer extends React.Component {
   constructor(props) {
     super(props);
     this.state = {
-      currentDirent: null,
+      currentDirent: {},
       appMenuType: 'item_op_menu',
     };
 
@@ -286,6 +286,7 @@ class LibContentContainer extends React.Component {
               repoID={repoID}
               path={this.props.path}
               dirent={this.state.currentDirent}
+              currentRepoInfo={this.props.currentRepoInfo}
               onItemDetailsClose={this.onItemDetailsClose}
               onFileTagChanged={this.props.onFileTagChanged}
             />
diff --git a/frontend/src/pages/lib-content-view/lib-content-view.js b/frontend/src/pages/lib-content-view/lib-content-view.js
index a5aa45f7d8..359c3f0e25 100644
--- a/frontend/src/pages/lib-content-view/lib-content-view.js
+++ b/frontend/src/pages/lib-content-view/lib-content-view.js
@@ -83,6 +83,10 @@ class LibContentView extends React.Component {
     });
   }
 
+  toggleDirentDetail = () => {
+    this.setState({ isDirentDetailShow: !this.state.isDirentDetailShow });
+  }
+
   closeDirentDetail = () => {
     this.setState({ isDirentDetailShow: false });
   }
@@ -538,6 +542,10 @@ class LibContentView extends React.Component {
     if (mode === this.state.currentMode) {
       return;
     }
+    if (mode === 'detail') {
+      this.toggleDirentDetail();
+      return;
+    }
     cookie.save('seafile-view-mode', mode);
     let path = this.state.path;
     if (this.state.currentMode === 'column' && this.state.isViewFile) {