[Tickets #3849] Disable spell-checking button for empty message

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Ticket URL: https://dev.horde.org/horde/whups/ticket/?id=3849
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 Ticket             | 3849
 Updated By         | Michael Slusarz <slusarz at horde.org>
 Summary            | Disable spell-checking button for empty message
 Queue              | IMP
 Version            | HEAD
 State              | Accepted
 Priority           | 1. Low
 Type               | Enhancement
 Owners             | 
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Michael Slusarz <slusarz at horde.org> (2006-04-28 09:46) wrote:

What if the textarea has a single space in it?  It will look blank to the
user, but spellcheck would be enabled.  It might confuse them why spellcheck
is enabled in this situation, but be disabled in a situation (truly blank
message) that may not be discernable to them.

Adding a bunch of javascript to check for this (it may be trivial in the
text case, but it may require quite a bit more for html mode) doesn't seem
to be worth it IMHO.