Autocomplete dumps focus to body when selecting via mouse #4645
Description
Bug, feature request, or proposal:
When selecting an option using the keyboard, the host input does not blur on selection. However, when selecting an option using the mouse, the host input blurs.
What is the expected behavior?
As the MdSelect does not blur on clicking an option or selecting via the keyboard, I think that clicking should probably not blur the input. Or at least, the option for specifying the behavior should be present.
What is the current behavior?
The input blurs on click but not on keyboard selection.
What are the steps to reproduce?
The example plunks for the MdAutoComplete and the MdSelect show their corresponding behaviour.
https://plnkr.co/edit/ASQ9jmd8h5Y13kyD2wRI
What is the use-case or motivation for changing an existing behavior?
Bringing MdSelect and MdAutocomplete behavior into alignment
Which versions of Angular, Material, OS, TypeScript, browsers are affected?
Angular 4.x, Material Beta 3.
Is there anything else we should know?
I'm not sure if this helps, but I can see a preventDefault in the keyboard event handling in MdAutoComplete here: https://github.com/angular/material2/blob/master/src/lib/autocomplete/autocomplete-trigger.ts#L236
This could be why the keyboard is not blurring the input?