[Wayland-bugs] [Bug 777176] [wayland] gedit killed by protocol error "Invalid anchor rectangle size"

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=777176

--- Comment #2 from Olivier Fourdan <ofourdan at redhat.com> ---
Created attachment 343383
  --> https://bugzilla.gnome.org/attachment.cgi?id=343383&action=edit
[PATCH] wayland: avoid 0 width/height anchor rectangle

Passing a rectable with zero width or height to xdg_shell-v6
set_anchor_rect() will cause a protocol error and terminate the client,
as with gedit when pressing the Win key.

Reason for this is because the rectangle used to set the anchor comes
from gtk_text_layout_get_iter_location() which uses the pango layout
width/height, which can be empty if there is not character at the given
location.

Make sure we don't use 0 as width or height as an anchor rectangle to
avoid the protocol error.

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