x-window-selector

x-window-selector will display custom label on your window surface. It aims to quick select a window and get the window id without mouse/touchpad. This project is forked from xorg-choose-window, and add some feature. You can use custom font style and set the font size.

Install

Clone this project and ensue you have installed following dependency.

• libxcb
• xcb-util-keysyms
• xcb-util-wm

Then

$ cd x-window-selector
$ make clean  # build the binary file
$ make install  # install the /usr/bin

Usage

Usage: x-window-selector [OPTION...] CHARACTERS

Running the program draws a string of characters over each visible window.
Typing one of those strings causes the program to print the corresponding
window ID to standard output and exit.  If any non-matching keys are pressed,
the program exits without printing anything.

CHARACTERS defines the characters available for use in the displayed strings;
eg. 'asdfjkl' is a good choice for a QWERTY keyboard layout.  Allowed
characters are the numbers 0-9 and the letters a-z.

The program exits with status 0 on success, 64 on invalid arguments, and 70 if
an unexpected error occurs.

  -b, --blacklist=WINDOWID   IDs of windows to ignore (specify this option
                             multiple times)
  -f, --format=FORMAT        Output format: 'decimal' or 'hexadecimal'
  -s, --font-size=FONT-SIZE  size of text font that will be displayed in your
                             window
  -t, --font-path=FONT-PATH  which font you want to use, please give the
                             font(ttf) absolute path
  -w, --whitelist=WINDOWID   IDs of windows to include (include all if none
                             specified) (specify this option multiple times)
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Have fun

You can use it with other application, such as bspwm, a tilling window manager. I will show how to swap windows in bspwm with x-window-selector.

Replace the variable in <> and save this script file.

FontSize=<font size> 
FontPath=<your font ttf file path> 
FocusWin=$(bspc query -N -n focused)
NewWin=$(x-window-selector -b ${FocusWin} -s ${FontSize} --font-path ${FontPath} 123456)
bspc node -s ${NewWin}
bspc node -f ${NewWin}

Add following code in your sxhkdrc

super + s;
    sh <your script path>

Reload sxhkd daemon by pkill -USR1 -x sxhkd. Press Super + s, then you can quick swap two window.

License

Apache-2.0 License.