get old client by surface's node

Merge branch 'main' into scenegraph

make sure configure and activate listeners are removed from list

set correct position for unmanaged clients

- don't allow to move/resize with them
- don't focus unmanaged clients on buttonpress()

add support for layer_shell popups

use wlr_scene_xdg_surface_create() for xdg_popups

Merge branch 'fix-segfault-in-fullscreennotify'

don't use fullscreen event in fullscreennotify()

always call arrange() on setfullscreen()

also don't count full screen clients on tile()

print status about floating and fullscreen

more style fixes

suckless style: don't use '//' for comments

use loop to call arrangelayer

zwlr_layer_shell_v1_layer are ordered by bottom-most first so we can
just use a loop from 3 to 0

Merge pull request #196 from noocsharp/main

die on allocation failure

fix left border 'y' position

also add comment about border ordering

use wlr_scene_node_raise_to_top()

use wlr_scene_output_send_frame_done()

use wlr_box for previous geom

don't warn about unused result

Closes: #186

replace tabs by spaces in alignment