SnackBar does not close zone when dismissed

[sv2dev]

Bug:

SnackBar should close duration zone when dismissed, so protractor is not blocked.

What is the expected behavior?

When calling MdSnackBarRef.prototype.dismiss(), the timeout reference by setTimeout should be cleared to close the angular zone.

What is the current behavior?

The zone stays open for the duration of the timeout.

What are the steps to reproduce?

Plunker (watch the zone state)

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

@angular/[email protected]

[jelbourn]

We should do clearTimeout for that duration timeout if the snackbar is manually dismissed before the duration completes.

[sv2dev]

Good point, @jelbourn.

That complicates the timeout handling:
We would have to remember the timeoutHandle. Since the ref can be directly dismissed, we would have to create either a new subject which fires on exitStart or the ref has to know about that handle.
In the latter case we cannot pass the timeout through the constructor, since we start that timeout afterOpened(), so we have to introduce a public field.

Which way do you prefer?

[jelbourn]

I would just move the setTimeout call into the snackbar ref in a function like dismissAfter(timeout), then you can keep track of the timeout id in the ref and clear it when necessary.

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