workflows: improve or replace tooltips

[oliver-sanders]

The status indicators next to each workflow contain contextual information which is revealed when you hover over it.

This feature is carried over from Cylc 7 where it was introduced as the result of a request from operators.

These tooltips were flagged as being too noisy / getting in the way at a recent meeting with operators.

Ideas for improving the tooltips:

• Delay tooltip activation (i.e. make it so you have to hover more purposefully to reveal the tooltip).
• Disable tooltips for elements where there is no contextual information available (e.g. if there are no failed tasks, disable the tooltip rather than a message saying there are no failed tasks).
• Prevent multiple tooltips from opening at once (can happen when you move the mouse quickly)
• Add a timeout to ensure stale tooltips get cleaned up.

Idea for replacing the tooltips:

• Replace on-hover tooltips with on-click menus.
  • Pros:
    • No tooltips, no tooltip related issues.
    • Mobile friendly (on-hover don't work for touch devices!).
    • Can open a more complex menu if desired (e.g, could display warnings more elegantly).
  • Cons:
    • Context info slightly harder to access.
    • Context info less discoverable (why would a user think to click on the icon?).
    • Dismissing a warning triangle becomes three clicks, one to open the menu, one to dismiss the warning, one to close the menu (might be able to hack away the last one?).
• Replace task-state tooltips with a "click through" feature.
  • I.E, if you click on the failed task indicator, it could take you to that workflow and pop up a tree view pre-filtered for the failed state.
  • Pros:
    • Much easier to access the selected tasks.
    • Resolves tooltip issues.
    • Mobile friendly.
  • Cons:
    • Feature less discoverable.
    • Warning triangles may remain implemented via tooltips so some would remain.

Note: To improve feature discoverability, we could keep a tooltip with a long delay that makes users aware that the icon can be clicked (e.g, "click for more info" or "click to view failed tasks" or whatever).