In practice this shape is only used to outline the popover when it is
above native windows, in the most normal full-csw case the shape won't apply
visibly, so popovers will still be able to cast a shadow there.
If there are native windows below the popover, the shape will exclude the
shadow, so there are no alpha contents above the window. One worst case that
might happen is that the popover lays above patches of native/client-side
windows, so the shadow could come and go around the border. But first let's
see whether that happens often or visibly enough before adding something more
convoluted.
The update of the needs-attention state is done via its own property,
so it doesn't need to be done via visibility changes.
This patch is largely the result of inspecting the code due to a warning
and not a result of testing. So if issues pop up that bisect back to
this patch, that's why.
And document the fact that the popover will get destroyed if
a NULL relative-to is given on a parented popover, if no extra
references are kept.
For gtk_popover_new*(), a NULL relative-to will leave the widget
as a floating object, to be sunk by a later call to
gtk_widget_set_relative_to().
https://bugzilla.gnome.org/show_bug.cgi?id=724407
The recursion in map needs to follow the actual physical
widget tree, otherwise we violate invariants. The generic
container map implementation uses gtk_container_forall to
operate on the children, and thus is not suitable for
containers where the children are inside some internal
container.
We should only eat button release events when the label is
actually selectable, since the comment indicates that we
want to eat the release events belonging to press events
that triggered a selection. This fixes problems with actions
on parent widgets that are triggered by button release,
as seen in this bug:
https://bugzilla.gnome.org/show_bug.cgi?id=724541
Suprisingly, this bug has been there for a very long time.
I'm fixing it now because we now use a custom search entry
in the app chooser dialog, and this is causing the templates
cleanup test to fail.
The with_separators argument does not really make sense
for popovers, it was just copied from the menu implementation.
Drop it now, before it becomes part of the public API.
Dragging windows was not working on widgets in the titlebar
region unless they had the window-dragging style property
set. Fix this by looking at the region for motion notify
events as well as for buton press events.
