FileDropTargetAndSelector Add-on: FileDropTargetAndSelector is a UI component extension for Vaadin 8.1+.
!!! See also 8.1 HTML5 drag & drop not working on Windows 10 in some browsers · Issue #9974 · vaadin/framework · GitHub !!!
Workaround with UI.setMobileHtml5DndEnabled(true); seems to work for now
It extends Vaadin’s FileDropTarget (since 8.1) extension with file selector capability and uses the same api to transfer the selected file(s) to the server.
This extension simple uses following approach to get the selected file or files, and passes the FileList to Vaadin’s FileDropTargetConnector: Using files from web applications