[Seaside-dev] Issue 78 in seaside: #waitUntilCompletion

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Issue 78: #waitUntilCompletion
http://code.google.com/p/seaside/issues/detail?id=78

Comment #3 by damien.cassou:
This feature can be found in a lot of websites like Gmail for example. 
When you send
a mail, a message indicates that you have to wait.

- What should be displayed to the user?

A dialog in the center of the screen with a default message 
like 'please wait...'.
This can be change by using #waitUntilCompletiom: instead.

- How should this be displayed?

I don't understand the question. Is it an implementation detail?

- What happens if the longComputation throws an error?

Same thing as if the error appears outside the block.

- What happens if the user hits the back button?
- What happens if the user hits refresh?

Can we have a similar behavior as with #isolate:?



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