Kodi is primarily designed to be used with a remote, the same as any other entertainment device such as Tv, dvd/bluray player, dvr etc, with the on screen controls meant to help with limited button remotes which don't have playback controls.
However with all said, if a mouse is your preference then one of the great things about Kodi is the amount of user custimisation that can be done, and for controls that is in the form of keymap files that are customisable. For more info on keymaps see
https://kodi.wiki/view/Keymap
In the keymaps while in fullscreen video or music there's 2 actions:
OSD which brings up the overlay with the playback controls and other actions/settings:
Info which brings up only the info on the playing item
Looking at the default
mouse.xml, can be seen at
https://github.com/xbmc/xbmc/blob/master.../mouse.xml, there's no explictly defined actions for the
Visualisation window (the fullscreen music playback window) so this is problem, because for the
OSD to remain on screen then a defined
OSD action must be done, so it appears there must some default fallback routine for mouse movement. Having looked at what can be done to change this I came up with
https://gist.github.com/jjd-uk/8175be865...573fa58598
Click
Raw then use browser right click to access
Save As to download, then refer to wiki for where to place.
In this I've add a section for the
Visualisation window.
xml:
<Visualisation>
<mouse>
<mousedrag>OSD</mousedrag>
<mousemove>OSD</mousemove>
<leftclick>OSD</leftclick>
<rightclick>Info</rightclick>
</mouse>
</Visualisation>
So any mouse movement triggers the action
OSD, however now because the action
OSD is explictly defined it will remain on screen, at least it does for me in my tests. In addition I've added action
OSD to
leftclick so that you can close the OSD if you so wish to leave the visualisation with no overlay. I also explictly added the action Info to rightclick to match
Fullscreenvideo section (window for video playback) which toggles the
Info overlay.
However change this to whatever you want for your preference, the file will show the various possiblitites that Kodi can act on e.g. middleclick, doubleclick etc. then see the wiki keymaps page for possible Kodi actions.