uis open close

available in 0.19.0

The uis-open-close directive allows a callback to be defined that is called whenever the dropdown is opened or closed.

Callback is passed an isOpen parameter which is set to true if the dropdown has been opened, otherwise false.

option	description	example
`uis-open-close`	called whenever the dropdown is opened or closed	`uis-open-close="onOpenClose(isOpen)"`

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