When we populate the buddy list or update it for activity, we now
have buddy_data set a faded flag that is rendered in the template.
This avoids some re-rendering overhead and is on the eventual path
to having our widget be more data-oriented (and all rendering happens
"behind" the widget).
We still do direct DOM updates when the compose state changes or
when we get peer subscription events.
A recent change filtered out offline users from the buddy list
whenever the list size would otherwise exceed 600.
This commit reverts half that change--we can now show 600+ users
again, but only when searching.
If we would have more than 600 people in a buddy list, it's kind of
cumbersome to scroll through it, and it's also expensive to render
it (short of doing progressive rendering, which adds a lot of
complexity).
So, as a short term measure, we filter out offline users whenever the
list would exceed 600 users. Note that if you are doing a search that
narrows to fewer 600 users, the offline users will appear again.
Steve Howell