It doesn't emit that signal for all the accessibility object, specifically:
* NuxViewAccessible
* NuxLayoutAccessible
But this is because nux::View and nux::Layout lacks signals reporting that a child was added.
Anyway, this branch emit "children-changed" for the most important object, the root, and I found that no manual request of the object was required (so no accessible objects are missing).
So I suggest to close this bug once this branch gets merged, and managed those objects in a different bug.
I have just uploaded the branch lp:~apinheiro/unity/a11y-emit-children-changed
It doesn't emit that signal for all the accessibility object, specifically:
* NuxViewAccessible
* NuxLayoutAccessible
But this is because nux::View and nux::Layout lacks signals reporting that a child was added.
Anyway, this branch emit "children-changed" for the most important object, the root, and I found that no manual request of the object was required (so no accessible objects are missing).
So I suggest to close this bug once this branch gets merged, and managed those objects in a different bug.