new function to notify keyboard enter

sort client.h functions

set monitor for clients that don't have one in updatemons()

only if selmon is enabled and the clients are mapped

handle client_from_wlr_surface() receiving a subsurface

always set the same monitor and tags for child clients of a client

fixes #272

remove a useless check

if `s->role_data == NULL`, wlr_*_surface_from_wlr_surface() will return NULL
and we are checking it

respect size hints

unconstrain layer shell popups

also unconstrain popups from monitor's usable area

move ugglyness to client.h

improve client_from_wlr_surface()

add a new function to get a client from a wlr_surface

Check if XWayland client size_hints are NULL

fix segfault when dragging chromium tabs

add missing return in client_is_floating_type()

This causes all Xwayland clients to be treated as floating

improve floating detection

mostly copied from sway

Merge pull request #204 from djpohly/scenegraph3

merge scenegraph3

Merge branch 'main' into scenegraph

do not allow set client size less than its min size

constraint popups to its parent client

Closes: #146
Closes: #155

Merge branch 'main' into scenegraph