## Background
`pathchooser.lua` does not support non-touch device to choose file or folder due to those device cannot generate long press event.
## Choose File
Non-touch device can select file in list, it is good enough to choose file without long press to confirm.
## Choose Folder
`pathchooser.lua` changes the label of current directory `.` to `Long-press to choose a folder`. It is user friendly, while for non-device, it is a very good place to let user tell the system I want the current folder to be chosen without extra long press.
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