Preview the effects of a drag-and-drop operation on workboards
Summary:
Ref T10335. Ref T5474. When you drag-and-drop a card on a workboard, show a UI hint which lists all the things that the operation will do.
This shows: column moves; changes because of dragging a card to a different header; and changes which will be caused by triggers.
Not implemented here:
- Actions are currently shown even if they have no effect. For example, if you drag a "Normal" task to a different column, it says "Change priority to Normal.". I plan to hide actions which have no effect, but figuring this out is a little bit tricky.
- I'd like to make "trigger effects" vs "non-trigger effects" a little more clear in the future, probably.
Test Plan:
Dragged stuff between columns and headers, and into columns with triggers. Got appropriate preview text hints previewing what the action would do in the UI.
(This is tricky to take a screenshot of since it only shows up while the mouse cursor is down.)
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T10335, T5474
Differential Revision: https://secure.phabricator.com/D20299