Dir mode optimized (#2992)

* optimized isRepoOwner&isAdmin

* optimized isAdmin

* optimized encrypted porps

* optimized showShareBtn judgement

* repair share bug

* update showShareBtn logic

* delete unnecessary comment

frontend/src/components/toolbar/dir-operation-toolbar.js

@@ -14,7 +14,6 @@ const propTypes = {
   repoEncrypted: PropTypes.bool.isRequired,
   enableDirPrivateShare: PropTypes.bool.isRequired,
   userPerm: PropTypes.string.isRequired,
-  isAdmin: PropTypes.bool.isRequired,
   isGroupOwnedRepo: PropTypes.bool.isRequired,
   showShareBtn: PropTypes.bool.isRequired,
   onAddFile: PropTypes.func.isRequired,
@@ -155,7 +154,7 @@ class DirOperationToolbar extends React.Component {
 
   render() {
     let { path, repoName } = this.props;
-    let itemType = 'dir';
+    let itemType = path === '/' ? 'library' : 'dir';
     let itemName = path == '/' ? repoName : Utils.getFolderName(path);
     return (
       <Fragment>
@@ -217,7 +216,6 @@ class DirOperationToolbar extends React.Component {
               repoEncrypted={this.props.repoEncrypted}
               enableDirPrivateShare={this.props.enableDirPrivateShare}
               userPerm={this.props.userPerm}
-              isAdmin={this.props.isAdmin}
               isGroupOwnedRepo={this.props.isGroupOwnedRepo}
               toggleDialog={this.onShareClick}
             />