When initialized, or when expiration-related attributes change, expiring
messages will set timers to self-destruct. On self-destruct they trigger
'expired' events so that frontend listeners can clean up any collections
and views referencing them.
At startup, load all messages pending expiration so they can start their
timers even if they haven't been loaded in the frontend yet.
Todo: Remove expired conversation snippets from the left pane.
Previously we only declared the message body as selectable, but Chrome's
implementation of user-select is a little quirky in that it allows
unselectable text to be copied if you select elements around it. Oddly
enough, styling the entire bubble contents as selectable, including the
timestamp, actually prevents chrome from copying the timestamp text when
it's not supposed to, i.e., when triple-clicking the message body.
Fixes#887
// FREEBIE
Move away from inline style attributes for setting contact colors.
Apply colors by name via css classes instead. Also lays groundwork
for syncing contact colors.
// FREEBIE
The bar is effectively invisible, but having it present means that we
don't see a jarring change in width when the content expands into the
overflow zone and triggers the scrollbar to suddenly appear.
// FREEBIE
For messages that failed to send due to network errors, this change
allows retrying them directly from the main conversation view rather
than only from the message detail view.
// FREEBIE
lilia
bitim