[FEATURE REQUEST] Add name property for wire frame

Submitted by ada..@..il.com

Assigned to Olivier Fourdan @olivier

Link to original bug (#12396)

Description

Current xfwm4 wire frame has no name nor class property, that's OK if one is using the integrated compositor.

But if user like me, is using standalone compositor like compton/xcompmgr and enabled shadow, then compositor will draw shadows for the wire frame windows created at alt-tab. Which is quite wired and ugly.

Currently, compton user can disable exclude shadow for wire frame using "! name ~= ''", but that will also exclude shadow for any window which doesn't has a name.

If wire frame has a windows class or name, it will be much accurate for compton to match.

There is already a RFC patch for reference: https://github.com/chjj/compton/issues/128

Thanks.

Version: 4.12.0