title: libinput-gestures on wayland: can't get 'super' key
body: <p>I'm trying to configure libinput-gestures by editing <code>/etc/libinput-gestures.conf</code>.</p>
  
  <p>I'm using gnome 3.28.1 on Linux Mint 19 and I want to trigger 'activities overview' with a given multi-touch trackpad gesture.  </p>
  
  <p>Libinput-gestures is working for switching desktops using </p>
  
  <p><code>_internal ws_up</code> &amp; </p>
  
  <p><code>_internal ws_down</code> in the config file.</p>
  
  <p>The way I got into overview in Linux Mint 18.03 is by sending a key via</p>
  
  <p><code>xdotool key super</code> for 'activities overview' &amp;</p>
  
  <p><code>xdotool key super+a</code> for 'show applications'.  </p>
  
  <p>From my research I have found that the version of gnome I had in mint 18 used x11 as it's display manager and the version of gnome in mint 19 uses wayland.  Wayland has I believe deprecated the ability to 'send keys' for security reasons.  </p>
  
  <p>Solutions to this problem might be: </p>
  
  <ul>
  <li>A way to trigger the 'activities overview' from the terminal.</li>
  <li>A way around waylands blocking of 'send key'.</li>
  </ul>
  
  <p>All insights are appreciated.
  Thanks :)</p>