allow custom toolbar tooltips on EditControl component

[fgoudreault]

I'd like to propose a new option to the EditControl component which allows to customize the tooltip shown when hovering on the draw buttons. Here's an example screenshot of what it looks like.

MWE:

from dash import Dash
import dash_leaflet as dl


app = Dash()
app.layout = [
        dl.Map(
            [
                dl.TileLayer(),
                dl.FeatureGroup(
                    [
                        dl.EditControl(
                            buttons={
                                "rectangle": "new tooltip",
                            },
                        ),
                    ],
                ),
            ],
            center=[56, 10], zoom=6, style={"height": "50vh"},
        )
        ]

if __name__ == "__main__":
    app.run(debug=True)

[emilhe]

This is a nice addition. And a neat PR. One question; is there a reason you only target the buttons property (there's are more, e.g. undo)? Or is it just the one needed for you use case?

[fgoudreault]

No particular reasons. I was just looking at these tooltips for my use case. Indeed I guess there could be options for all buttons and one could possibly override the whole L.drawLocal object to change any default tooltips. But then, doing so could create a very complex argument to the function or there could be several new arguments such as the one I am proposing here. I'd be happy to modify the approach if you think this should be a worthy addition :)