Jiggle/shake/move the mouse cursor to inhibit screensaver

jiggle-gui.sh

#!/bin/bash

# GUI version. Could be really useful for Partedmagic. Work-in-progress.

export MAIN_DIALOG='
    <window title="Mouse Jiggler">
        <vbox>
            <text>
                <label>Jiggle the mouse to prevent the display from sleeping</label>
            </text>
            <checkbox>
                <label>Jiggle the mouse</label>
                <variable>shake</variable>
		<action>if true shakethemouse</action>
            </checkbox>
        </vbox>
    </window>
'


# I don't know how to finish this script
# shakethemouse is blocking
# and I need the action above to not block


function shakethemouse {
  while [ true ]; do
    xdotool mousemove_relative --sync 1 1
    xdotool mousemove_relative --sync -- -1 -1
    sleep 0.2
  done
}


export -f shakethemouse





gtkdialog --program=MAIN_DIALOG

jiggle.sh

#!/bin/bash

# jiggle the mouse until Ctrl+C is pressed.

while [ true ]; do
  xdotool mousemove_relative --sync 1 1
  xdotool mousemove_relative --sync -- -1 -1
  sleep 0.2
done