Returns an activation handler that opens the subject in the layout, or undefined if the subject is not
navigable (e.g. not an Echo object, or not of a user-facing type). Use it for a card's own click.
A card lives inside a plank, so its object opens as a plank beside that plank (add), resolved
structurally from the target via Attention.getRootAttendableId — or, given detailOf, as that
plank's detail unless meta/ctrl is held. The destination path comes from openObject.
Returns an activation handler that opens the subject in the layout, or undefined if the subject is not navigable (e.g. not an Echo object, or not of a user-facing type). Use it for a card's own click. A card lives inside a plank, so its object opens as a plank beside that plank (
add), resolved structurally from the target via Attention.getRootAttendableId — or, givendetailOf, as that plank's detail unless meta/ctrl is held. The destination path comes from openObject.