[issue33839] IDLE tooltips.py: refactor and add docstrings and tests
Tal Einat
report at bugs.python.org
Wed Jun 20 03:36:45 EDT 2018
Tal Einat <taleinat at gmail.com> added the comment:
>> If so, should it be possible for two tooltips to be shown at once, one for the mouse hover and one for the keyboard focus?
> If we have different popup contents, I think 1 at a time would be fine.
Consider the following example: A window with two buttons, each with a tooltip. The keyboard focus is on one while the mouse hovers over another.
IMO there should never be more than a single tooltip displayed at once (perhaps not including calltips). We can have tooltips auto-hide when another is displayed (and no-op if itself it attempted to be re-displayed).
Having keyboard focus changes automatically trigger tooltip display (with or without delay) could interact poorly with the above in some cases, e.g. a mouse-hover tooltip suddenly disappearing due to a keyboard delay kicking in and displaying another tooltip.
I'm also not sure keyboard focus should affect tooltips shown by mouse-hover. If we have tooltips triggered by the keyboard, however, then the "anchor" widget losing keyboard focus should certainly hide the tooltip. I lean in favor of simplicity and consistency. IMO any keyboard focus change should likely hide all tooltips.
I suggest the following:
1. Add ability to show tooltips with the keyboard using the same keyboard shortcut as "<<force-open-calltip>>", which defaults to Ctrl+/. Perhaps as a separate "<<show-tooltip>>" virtual event, or just rename "<<force-open-calltip>>" to that and use it for both.
2. No auto-display of tooltips triggered by a widget receiving keyboard focus.
3. Any keyboard focus change should hide all tooltips and calltips.
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<https://bugs.python.org/issue33839>
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