Issue #420 - Splitting onOpen and onClose to before and after actions

[Ryan-Bell]

Issue #420

My attempt at implementing onBeforeOpen, onBeforeClose, onAfterOpen, onAfterClose hooks.

I wasn't sure what arguments should be passed to the "after" hooks and whether or not onAfterClose should be called if the dropdown has been destroyed.

Let me know if there are any changes to documentation/implementation or tests you want.

Thanks for the great addon!

[cibernox]

I'm not 100% if we should call it here or wait until the afterRender step.
I lean towards your solution, and let the user wait for the render if they want to.

[cibernox]

This looks great. I just have one request. Can you update Ember Power Select to use the new onBeforeOpen/onBeforeClose hooks? Otherwise there will be a lot of noise. After that I'll merge it

[cibernox]

It's also worth noting that I'm planing a new major release updating to GlimmerComponents, and it would be a good moment to remove the now-deprecated onOpen/onClose

[Ryan-Bell]

Awesome! Quick question, should onAfterOpen and onAfterClose be exposed in ember-power-select or is it enough to update the onOpen and onClose internally? I noticed power-select-multiple.hbs has @onClose={{@onClose}}. Will this have to be updated to @onBeforeClose={{@onClose}}

[hadiwina]

Is this PR no longer be merged?