set the anchor rectangle within the parent surface
Specify the anchor rectangle within the parent surface that the child
surface will be placed relative to. The rectangle is relative to the
window geometry as defined by xdg_surface.set_window_geometry of the
parent surface. The rectangle must be at least 1x1 large.
When the xdg_positioner object is used to position a child surface, the
anchor rectangle may not extend outside the window geometry of the
positioned child's parent surface.
If a zero or negative size is set the invalid_input error is raised.
set the anchor rectangle within the parent surface
Specify the anchor rectangle within the parent surface that the child surface will be placed relative to. The rectangle is relative to the window geometry as defined by xdg_surface.set_window_geometry of the parent surface. The rectangle must be at least 1x1 large.
When the xdg_positioner object is used to position a child surface, the anchor rectangle may not extend outside the window geometry of the positioned child's parent surface.
If a zero or negative size is set the invalid_input error is raised.