Hover text over nodes for basic summary information

[ColemanTom]

Problem

I have not learn all the colours and symbols meanings. When looking at tasks in the UI, I often don't know what their state is.

Proposed Solution

When hovering over a node, provide some sort of summary. Sorry, this isn't very fleshed out, but there are a lot of possible options depending on if the node is a cycle, family, task.

I think perhaps:

• for a task some information about if the task/job state and timings.
• for a family/cycle - a count of tasks in different states (like what the LHS area hover provides)

I may be wrong, but I think Cylc7 provided some information on hover?

[oliver-sanders]

The key to task and job state icons can be found in the "Guide" which is linked from the dashboard page.

If you click on a task you get a summary which includes a text representation of the task's state e.g. "waiting" at the top of the list of commands.

Tooltips aren't universally popular (we had a lot of negative feedback about their use in the Cylc 7 GUI) and don't work for mobile devices (which is a stated aim of the Cylc UI, though sadly we haven't had the time to put into this as yet) so we use them sparingly.