Animations should be exported for re-use #8904
Description
Bug, feature request, or proposal:
Feature request
What is the expected behavior?
Animations to be exported
What is the current behavior?
Animations are not exported
What is the use-case or motivation for changing an existing behavior?
Building custom material design components that match existing components without duplicating code. For example I would like to create sort component that would allow me to sort table on mobile devices when not every column is visible and the space is limited. Right now I'm forced to copy animations from https://github.com/angular/material2/blob/b4a83ab49a1c3d27acfdeb2ece8e21f755a32606/src/lib/sort/sort-header.ts#L69-L104 to look the same as MatSortHeader.
With exported animations I could reuse that code.
Which versions of Angular, Material, OS, TypeScript, browsers are affected?
5.0.0
Is there anything else we should know?
Some animations are exported so there is an inconsistency.