[PATCH] xwayland: Avoid repeatedly looping through window ancestor chain

[Adam Jackson]

On Thu, 2017-08-10 at 15:49 +0300, Pekka Paalanen wrote:

> how does this work when windows are reparented? Does reparenting force
> them to go through the unrealize/realize steps again?

Yes, reparenting is implemented as: unmap the window if mapped, move
the window in the tree, map window if previously mapped.

- ajax