[ADD] Shows desktop every few minutes

roles/display/files/show_desktop_service_unit

@@ -0,0 +1,12 @@
+[Unit]
+Description=Show desktop for a few seconds
+
+[Service]  
+Type=oneshot
+Environment=DISPLAY=:0.0
+Environment=XAUTHORITY=/home/odoo/.Xauthority
+ExecStart=/usr/bin/nitrogen --set-zoom-fill --random /home/odoo/wallpapers/
+ExecStart=sh -c "xdotool key Super_L+d; sleep 7; xdotool key Super_L+d"
+User=odoo
+Group=users
+

roles/display/files/show_desktop_timer_unit

@@ -0,0 +1,10 @@
+[Unit]
+Description=Show desktop every few minutes
+
+[Timer]
+OnCalendar=*:0/5
+Persistent=true
+
+[Install]
+WantedBy=timers.target
+

roles/display/tasks/main.yml

@@ -20,3 +20,5 @@
 
 - import_tasks: allow_remote_page_refresh.yml
 
+- import_tasks: show_desktop_periodically.yml
+

roles/display/tasks/show_desktop_periodically.yml

@@ -0,0 +1,29 @@
+---
+
+- name: Copy wallpapers
+  copy:
+    src: wallpapers/
+    dest: /home/odoo/wallpapers/
+    owner: odoo
+
+- name: Service that schedules the desktop to show every few minutes
+  copy:
+    src: show_desktop_timer_unit
+    dest: /etc/systemd/system/show-desktop.timer
+    mode: 0644
+    owner: root
+
+- name: Script that reloads the screen when it detects the file changed
+  copy:
+    src: show_desktop_service_unit
+    dest: /etc/systemd/system/show-desktop.service
+    mode: 0644
+    owner: root
+
+- name: Enable and start the scheduled desktop show
+  systemd:
+    daemon_reload: yes
+    name: show-desktop.timer
+    state: started
+    enabled: true
+

roles/display/vars/main.yml

@@ -7,6 +7,7 @@ required_packages:
   - xinit
   - xdotool
   - openbox
+  - nitrogen
   - chromium-browser
 
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