Tile sources as param widgets

I wrote this bit of code so that I can display the tile sources as widgets. It seems like it might be useful in geoviews itself:

import geoviews as gv
import geoviews.tile_sources as gvts
import param
import panel as pn

class GVTS(param.Parameterized):
    
    source = param.ObjectSelector(default=list(gvts.tile_sources.keys())[0], objects=list(gvts.tile_sources.keys()), label='Web Map Tile Services')
        
    def widget(self):
        return pn.panel(self.param, parameters=['source'])
    
    @param.depends('source')
    def view(self):
        return gvts.tile_sources[self.source]
    
    def panel(self):
        return pn.Column(self.widget, self.view)

I’m not super happy with the syntax on the tile sources in the ObjectSelector. I wanted to do something like this:
source = param.ObjectSelector(default=gvts.tile_sources['EsriImagery'], objects=gvts.tile_sources, label='Web Map Tile Services')

But that gave me extra widgets that I didn’t want to expose to the user and I couldn’t see a way around it. I suspect its due to the use of dict as ObjectSelector.

[jsignell]

I just came across this issue and think it should be closed. Unless someone wants to add a snippet to the docs. Here is an (arguably) simpler version using @pn.depends

import panel as pn
import geoviews.tile_sources as gvts

tiles_widget = pn.widgets.Select(options=gvts.tile_sources, name='Web Map Tile Services')

@pn.depends(tiles_widget)
def tile_plot(tile): 
    return tile

pn.Row(tiles_widget, tile_plot)

[jbednar]

I’m a bit confused; to me the grabcut.py files seem messy because they are using string URLs rather than gvts.tile_sources, but that’s a matter of updating grabcut.py rather than GeoViews. I’m not able to see just what would go into GeoViews that would be reusable, beyond tile_sources that’s already in GeoViews. I must be missing something?