Before this change, we were using sequentially generated ids
on the client side to identify streams. Now we just use
the ids from the server. The goal here is to reduce the
confusion of having two different ids attached to a stream.
Also, not that it matters a ton, but this also means that
the browser basically has an immutable id for each stream
that is future-proof to reloads, multiple create_sub calls, etc.
It also a bit easier to grep for ".stream_id" than ".id".
(imported from commit 057f9e50dfee127edfe3facd52da93108241666a)
Perhaps we should be checking based on an ID rather than the actual
text, but this fixes the proximal issue.
(imported from commit b125415c3a8356255b64c8e22733532491ea0065)
This fixes trac #1357, which says that some users get annoyed
when the system keeps generating the same color for them, which
would happen if they didn't like #76ce90 and kept picking a
new color for their streams.
(imported from commit 0fdb726aad4009332cc056a5e98bb39e01ef414c)
Instead of splicing up a cloned copy of stream_assignment_colors
every time somebody uses a color, we just rebuild a hash
of used_colors from our subscribed streams when we need to assign
a color, and we avoid calling into stream_color.pick_color() when
a stream already has a color.
This change has a slight functional impact in the situation where
a user unsubscribes some streams during their session, because
we weren't "reclaiming" colors before on unsubscription, but the
simple approach gets that for free.
(imported from commit adf360365bdf1ae9db99c533a0bde62d91f5dfe8)
This is a pure refactoring that mostly just moves code from
subs.js to the new stream_color.js and updates module references
accordingly. In order to prevent introducing some exports,
update_stream_color was given an additional "sub" parameter
and update_stream_sidebar_swatch_color was given an "id"
parameter.
Killed off unused initial_color_fetch var.
(imported from commit b7644ce67f50d31fb46f564d758d661eea776aa6)
