Thumbnail view does not work as expected

[jrief]

That new thumbnail view really looks great, but unfortunately it does not work properly. @corentinbettiol please check this, because it's a show-stopper for that feature.

How to reproduce

• Use django-filer version 2.3rc1 or HEAD in branch master.
• Open a directory list view, for instance http://my-site/en/admin/filer/folder/, it should contain at least 1 file or folder.
• Click on the checkbox on the left side of that folder.
• In the toolbar there are buttons to delete, copy and move the selected files. In an additional drop-down menu there are options to change permissions, to rename and to resize the selected images. If at least one file is selected, it is possible to perform these actions.
• Switch over to thumbnail view and try the same. Even if a file is selected, those action buttons are disabled.

Screenshot:

[corentinbettiol]

I will look into this issue (and #1342) later this week.

[fsbraun]

I think there's a solution: #1345