Fixes T430. Fixes T4834. Obsoletes D7641. Currently, we do some things less-well than we could:
- We just let the browser queue and prioritize requests, so if you load a revision with 50 changes and then click "Award Token", the action blocks until the changes load in most/all browsers. It would be better to prioritize this action and queue it immediately.
- Similarly, changes tend to load in order, even if the user has clicked to a specific file. When the user expresses a preference for a specific file, we should prioritize it.
- We show a spinning GIF when waiting on requests. This is appropriate for some types of reuqests, but distracting for others.
To fix this:
- Queue all (or, at least, most) requests into a new queue in JX.Router.
- JX.Router handles prioritizing the requests. Principally:
- You can submit a request with a specific priority (500 = general content loading, 1000 = default, 2000 = explicit user action) and JX.Router will get the higher stuff fired off sooner.
- You can name requests and then adjust their prorities later, if the user expresses an interest in specific results.
- Only use the spinner gif for "workflow" requests, which is bascially when the user clicked something and we're waiting on the server. I think it's useful and not-annoying in this case.
- Don't show any status for draft requests.
- For content requests, show a subtle hipster-style top loading bar.