Visually Hide the Views Proximity Exposed Filter Form

Problem/Motivation

When creating a map views with geofield and leaflet, I would like to allow end-user update the exposed proximity filter original coordinates by:

• Moving the map with mouse click
• Capture the "moveend" Leaflet event with JS
• Using JQuery to update the exposed proximity filter original coordinates, with current map center Lat/Lng
• User click on "search" button will now showing an updated result, based on Lat/Lng just captured

From this point of view, end-user shouldn't manually update the exposed proximity filter form (both the operator for distance, Latitude and Longitude). The form should therefore set as visually-hidden with CSS.