[repo snapshot] enable department admin to restore department repo (#4446)

frontend/src/repo-snapshot.js

@@ -16,7 +16,7 @@ import './css/search.css';
 import './css/repo-snapshot.css';
 
 const { 
-  repoID, repoName, isRepoOwner,
+  repoID, repoName, canRestoreRepo,
   commitID, commitTime, commitDesc, commitRelativeTime,
   showAuthor, authorAvatarURL, authorName, authorNickName
 } = window.app.pageOptions;
@@ -159,7 +159,7 @@ class RepoSnapshot extends React.Component {
                 )}
                 <div className="d-flex justify-content-between align-items-center op-bar">
                   <p className="m-0">{gettext('Current path: ')}{this.renderPath()}</p>
-                  {(folderPath == '/' && isRepoOwner) &&
+                  {(folderPath == '/' && canRestoreRepo) &&
                   <button className="btn btn-secondary op-bar-btn" onClick={this.toggleDialog}>{gettext('Restore')}</button>
                   }
                 </div>

seahub/templates/repo_snapshot_react.html

@@ -27,7 +27,7 @@ window.app.pageOptions = {
   authorNickName: '{{ current_commit.props.creator_name|email2nickname|escapejs }}',
   {% endif %}
 
-  isRepoOwner: {% if is_repo_owner %} true {% else %} false {% endif %}
+  canRestoreRepo: {% if can_restore_repo %} true {% else %} false {% endif %}
 };
 </script>
 {% render_bundle 'repoSnapshot' 'js' %}

seahub/views/repo.py

@@ -202,7 +202,7 @@ def repo_snapshot(request, repo_id):
 
     return render(request, 'repo_snapshot_react.html', {
             'repo': repo,
-            "is_repo_owner": has_perm,
+            "can_restore_repo": has_perm,
             'current_commit': current_commit,
             })