I tried to follow the installation procedure and faced those problems:
1.If I put the package under myproject/protected/widgets then all the places in the code that have widgets.elfinder.xxx need to be prefixed with application, like this application.widgets.elfinder.xxx
The path is case sensitive so elFinder in the usage example (widgets.elFinder.FinderWidget) need to be changed to elfinder like the directory name in the distribution package.
After I fix 1 & 2 I got this: invalid jquery UI configuration. Selectable, draggable and droppable components must be included.
And here I’m stuck,