Datepicker event on the top buttons (calendar header)

[wederfabricio]

Bug, feature request, or proposal:

Feature request

What is the expected behavior?

When user clicks in buttons "NEXT" and "PREVIOUS" for change actually month/year, emit a event with next/previous first date (equals monthSelected, but in the calendar header buttons).

What is the current behavior?

Not available.

[wederfabricio]

If possible, disable/enable these controls.

[jelbourn]

From the issue template:

What is the use-case or motivation for changing an existing behavior?

[wederfabricio]

Dear @jelbourn,

The motivation is to have the possibility to pick up the click event in these buttons.

For example:
I need a filter in activated month. Actually, it is possible filter dates, but the navigation events in arrows help me to filter according to my backend dates.

Sorry for my bad english rs.

[jelbourn]

What kind of filtering do you need to do that's not covered by the min/max settings?

[wederfabricio]

Filter specific dates. Example:

In July month, I am available in dates 11, 12, 20, 23, 30 and 31. (The number of days). Is not a range, thereforce this kind of event is necessary. When month changes, I can search in backend which dates are available for activated month.

[jelbourn]

I see- you want to lazy request information from the server based on which month is currently rendered.

[jelbourn]

I think it's reasonable to have events emitted when the current rendered view changes (whether it's month, year, or multi-year).

[wederfabricio]

Thanks, if possible I like to contribute this request. I'll try.

[wederfabricio]

Dear @jelbourn , I would like if you can review my pull request too and test my commit. :D