min level set

[okwme]

I'm sorry I didn't understand what you meant before when you said I should set

self.options.map.zoom.init = self.options.map.zoom.minLevel 

if minLevel is set.

[Indigo744]

Thanks for this PR.

Just to be sure, this modification allows the user to specify a min level different from 0, right?

[neveldo]

That's it @Indigo744 .

Here is a JSFiddle where I put the updated code from @billyrennekamp : http://jsfiddle.net/neveldo/uz72posg/ .

Actually, it works fine. But you can see in the JSFiddle that I have set minLevel to 5, and, the map is initialized with a zoomLevel = 0 (no zoom, this is the default behavior). So, when the user click on the '+' button or use the mousewheel to zoom-in, it will set the zoomLevel from 0 to 5 (the minLevel value). Maybe it's not an issue because the user is able to set an initial zoom level through the options in order to avoid this behaviour.

So I'm still wondering if we should force the initial zoomLevel to the minLevel value if set or no ... What do you think about it ?

[Indigo744]

I see! This is because the zoom event is only triggered at creation if self.options.map.zoom.init is set (see line 213).

This can be easily corrected by adding a default options options.map.zoom.init like this:

defaultOptions: {
    ...
    zoom: {
        ...
        init: {
            level: 0
        },
        ...
    }
    ...

That way, zoom event is always triggered and the minimum value will be applied.

[neveldo]

Indeed, it works fine by setting a default value for the initial zoom level : http://jsfiddle.net/neveldo/gqzgezjf/ . However, by doing this, all the instances will run all the code within onZoomEvent() function, just to avoid a little side effect with the ongoing minLevel option. So I'm not fond of this approach for my part. Maybe we should just do nothing more than the code from @billyrennekamp , and let the users set the zoom.init.level option according to minLevel value ?

[Indigo744]

There is a side effect indeed.

I agree with you to let the user decide. If he wants to initialize the zoom, there is already an option available.

Let's merge this PR :)

[neveldo]

Done :)