183 lines
3.8 KiB
Groff
183 lines
3.8 KiB
Groff
.Dd June 11, 2023
|
|
.Dt DISPLAY 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm display
|
|
.Nd desktop environment
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Ar session ...
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
is a desktop environment and windowing system compositor.
|
|
Applications talk to the
|
|
.Nm
|
|
server process to receive user input and show their graphical user interfaces
|
|
in windows.
|
|
.Pp
|
|
The user's preferred startup applications are launched on startup by launching
|
|
the
|
|
.Xr session
|
|
program (if set) or otherwise the
|
|
.Xr displayrc 5
|
|
script in the background.
|
|
.Pp
|
|
.Nm
|
|
exits when Control + Alt + Delete is pressed.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width "12345678"
|
|
.It Fl m Ar mouse
|
|
Use
|
|
.Pa mouse
|
|
device instead of
|
|
.Pa /dev/mouse .
|
|
.It Fl t Ar tty
|
|
Use
|
|
.Pa tty
|
|
device instead of
|
|
.Pa /dev/tty .
|
|
.It Fl s Ar socket
|
|
Listen on
|
|
.Pa socket
|
|
instead of
|
|
.Pa /var/run/display .
|
|
.El
|
|
.Pp
|
|
The keyboard shortcuts are as follows:
|
|
.Bl -tag -width "Control + Alt + Delete"
|
|
.It Alt + F4
|
|
Quit the current window.
|
|
.It Alt + F10
|
|
Maximize (or restore) the current window.
|
|
.It Alt + Tab
|
|
Switch to the next window.
|
|
.It Alt + Drag
|
|
Drag the current window.
|
|
.It Control + Alt + Delete
|
|
Exit the desktop environment.
|
|
.It Control + Alt + T
|
|
Launch the
|
|
.Xr terminal 1
|
|
application.
|
|
.It Super + Left
|
|
Tile the current window leftwards.
|
|
.It Super + Right
|
|
Tile the current window rightwards.
|
|
.It Super + Up
|
|
Tile the current window upwards.
|
|
.It Super + Down
|
|
Tile the current window downwards.
|
|
.It F11
|
|
Grab input for the current window.
|
|
.It F12
|
|
Release the input grab on the current window.
|
|
.El
|
|
.Pp
|
|
The mouse gestures are as follow:
|
|
.Bl -bullet
|
|
.It
|
|
Clicking on a window brings it to the foreground.
|
|
.It
|
|
Dragging the window title bar moves the window.
|
|
.It
|
|
Double clicking on the window title bar maximizes (or restores) the window.
|
|
.It
|
|
Clicking on the rectangle icon in the title bar maximizes (or restores) the
|
|
window.
|
|
.It
|
|
Clicking on the X icon in the title bar closes the window.
|
|
.It
|
|
Dragging the edges of a window resizes it.
|
|
.It
|
|
Windows can be tiled by moving them when the cursor meets the left, right, top,
|
|
and bottom edges or any corner.
|
|
.El
|
|
.Pp
|
|
The keyboard layout can be changed with the
|
|
.Xr chkblayout 1
|
|
program.
|
|
The display resolution can be changed with the
|
|
.Xr chvideomode 1
|
|
program.
|
|
.Sh ENVIRONMENT
|
|
.Bl -tag -width "DISPLAY_SOCKET"
|
|
.It Ev DISPLAY_SOCKET
|
|
.Nm
|
|
sets
|
|
.Ev DISPLAY_SOCKET
|
|
to the path of the
|
|
.Xr unix 4
|
|
socket where it listens for connections from applications.
|
|
Applications use
|
|
.Ev DISPLAY_SOCKET
|
|
to connect to
|
|
.Nm
|
|
or
|
|
.Pa /var/run/display
|
|
by default.
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width 12345678 -compact
|
|
.It Pa ~/.displayrc , /etc/displayrc , /etc/default/displayrc
|
|
.Xr displayrc 5
|
|
script that spawns the user's preferred startup applications.
|
|
.It Pa /var/run/display
|
|
.Xr unix 4
|
|
socket where
|
|
.Nm
|
|
listens for connections from applications, as advertised in the
|
|
.Ev DISPLAY_SOCKET
|
|
environment variable.
|
|
.El
|
|
.Sh ASYNCHRONOUS EVENTS
|
|
.Bl -tag -width "SIGTERM"
|
|
.It Dv SIGTERM
|
|
Request daemon termination.
|
|
.El
|
|
.Sh EXIT STATUS
|
|
.Nm
|
|
runs as a
|
|
.Xr daemon 7
|
|
until stopped by
|
|
.Dv SIGTERM ,
|
|
the user explicitly exits the desktop environment, or an application asks
|
|
it to exit.
|
|
.Nm
|
|
signals readiness on the
|
|
.Ev READYFD
|
|
file descriptor when the display server is ready to receive connections from
|
|
applications.
|
|
.Nm
|
|
will exit non-zero on any fatal startup error.
|
|
.Sh EXAMPLES
|
|
.Nm
|
|
can be selected as the user's graphical user interface with this executable
|
|
.Pa ~/.session
|
|
script:
|
|
.Bd -literal -offset indent
|
|
#!/bin/sh
|
|
exec display
|
|
.Ed
|
|
.Pp
|
|
.Xr chkblayout 1 ,
|
|
.Xr chvideomode 1 ,
|
|
.Xr display 1
|
|
will run the
|
|
.Xr displayrc 5
|
|
script on startup, which can be used to start applications.
|
|
.Sh SEE ALSO
|
|
.Xr terminal 1 ,
|
|
.Xr displayrc 5 ,
|
|
.Xr session 5
|
|
.Sh BUGS
|
|
The following features are not yet implemented:
|
|
.Bl -bullet -compact
|
|
.It
|
|
Windows cannot be minimized.
|
|
.It
|
|
Applications cannot receive mouse events.
|
|
.It
|
|
The wallpaper is random and cannot be controlled.
|
|
.El
|