Adds "Topic editing only" along with the tooltip explanation to lower right
of message editing box when it's past the message content editing deadline.
This is controlled through the admin tab and a new field in the Realms table.
Notes:
* The admin tab setting takes a value in minutes, whereas the backend stores it
in seconds.
* This setting is unused when allow_message_editing is false.
* There is some generosity in how the limit is enforced. For instance, if the
user sees the hovering edit button, we ensure they have at least 5 seconds to
click it, and if the user gets to the message edit form, we ensure they have
at least 10 seconds to make the edit, by relaxing the limit.
* This commit also includes a countdown timer in the message edit form.
Resolves#903.
I love press-enter-to-send but find this behavior confusing when
I'm in an edit box -- if we're going to respect it, we should
do so obviously (with a checkbox visible).
This reverts commit 6e3fc6495b7012aa12728a78b8bdd95701bb21e1.
(imported from commit d1ae16110f5504e879e315037c85c211ba3bca9a)
This is a behavior that basically only administrators can trigger
today, with the exception of the fact that anyone can edit a no-topic
message.
(imported from commit d50eded79ddf3438d87e3dc6a8641fbfb034d50c)
This change would allow anyone in the realm to set a topic for a "no topic"
message. As soon as the message topic is set, only the sender can change it again.
(imported from commit 0a91a93b8fd14549965cedc79f45ffd869d82307)
In a few cases the $.each was doing something imperatively that was
terser and easier to understand by using a different Underscore method,
so a few of these I rewrote.
Some code was using the fact that jQuery sets `this` in the callback to
be the item; I rewrote those to use an explicit parameter.
Some code was using $(some selector).each(callback). I converted these
to _.each($(some selector), callback).
One function, ui.process_condensing, was written to be a jQuery $.each
callback despite being in a totally different module from code using it.
I noticed this and updated the function's args.
(imported from commit bf5922a35f257c168cc09ec1d077415d6ef19a03)