protocol/tablet-shell.xml

<protocol name="tablet">

  <interface name="tablet_shell" version="1">
    <request name="set_lockscreen">
      <arg name="surface" type="object" interface="wl_surface"/>
    </request>

    <request name="set_switcher">
      <arg name="surface" type="object" interface="wl_surface"/>
    </request>

    <request name="set_homescreen">
      <arg name="surface" type="object" interface="wl_surface"/>
    </request>

    <request name="show_grid">
      <arg name="surface" type="object" interface="wl_surface"/>
    </request>

    <request name="show_panels">
      <arg name="surface" type="object" interface="wl_surface"/>
    </request>

    <request name="create_client">
      <arg name="id" type="new_id" interface="tablet_client"/>
      <arg name="name" type="string"/>
      <arg name="fd" type="fd"/>
    </request>

    <event name="show_lockscreen"/>
    <event name="show_switcher"/>
    <event name="hide_switcher"/>
  </interface>

  <interface name="tablet_client" version="1">
    <request name="destroy" type="destructor"/>
    <request name="activate"/>
  </interface>

</protocol>