Prevent typing over-long topic names

[gnprice]

Zulip has a maximum length for the name of a topic. (Historically 60 characters, and now a server setting that's typically still 60 characters; see #307.)

Currently we apply that maximum as a validator on the topic input, causing the send button to be disabled, and show an error message if you try to send.

It'd be better to instead apply the maximum sooner, when you're typing the topic itself, so that you can't type more than the limit. We heard this as beta feedback this week.

Related issues

• The way we determine the maximum will change: Use max_topic_length instead of hardcoded limit of 60 #307

  That's independent of this issue. For this issue, we'll use the old way of getting the maximum if we do it before that other issue, and the new way if we do it after.

[ARYPROGRAMMER]

hey @gnprice , I think I have cross verified this issue on my local setup and have a plan to solve this. Can you assign me this, I'll get it done quickly. Thanks

[gnprice]

Sure, go ahead.