Add initial support for Miriway

Miriway is a new generic compositor built on the Mir compositor
library that is designed to be used as part of composable desktop
environments.

configurations/CMakeLists.txt

@@ -17,6 +17,7 @@ install(FILES
 install(DIRECTORY
     labwc
     firstrun
+    miriway
     DESTINATION "${CMAKE_INSTALL_DATADIR}/lxqt/wayland"
     COMPONENT Runtime
 )

configurations/miriway/lxqt-miriway-wrapper

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+unset WAYLAND_DISPLAY
+unset DISPLAY
+
+port=0
+while [ -e "${XDG_RUNTIME_DIR}/wayland-${port}" ]; do
+    let port+=1
+done
+wayland_display=wayland-${port}
+
+export WAYLAND_DISPLAY=${wayland_display}
+
+if command -v Xwayland > /dev/null
+then
+  export MIR_SERVER_ENABLE_X11=1
+  MIR_SERVER_XWAYLAND_PATH=$(which Xwayland)
+  export MIR_SERVER_XWAYLAND_PATH
+fi
+
+export MIRIWAY_CONFIG_DIR="lxqt"
+
+miriway-shell --display-config=static="${XDG_CONFIG_HOME}/miriway-shell.display-config" --add-wayland-extensions=all --lockscreen-app="lxqt-leave --lockscreen" &
+miriway_pid=$!
+
+# Wait until the server starts
+until [ -O "${XDG_RUNTIME_DIR}/${WAYLAND_DISPLAY}" ]
+do
+  if ! kill -0 ${miriway_pid} &> /dev/null
+  then
+    echo "ERROR: miriway-shell [pid=${miriway_pid}] is not running"
+    exit 1
+  fi
+  inotifywait -qq --timeout 5 --event create "$(dirname "${XDG_RUNTIME_DIR}/${WAYLAND_DISPLAY}")"
+done
+
+lxqt-session "$@"
+lxqt_session_exit_code=$?
+
+kill $miriway_pid
+
+exit $lxqt_session_exit_code

configurations/miriway/miriway-shell.config

@@ -0,0 +1,21 @@
+x11-window-title=LXQt (Miriway)
+idle-timeout=600
+
+shell-component=dbus-update-activation-environment --systemd DISPLAY WAYLAND_DISPLAY XDG_SESSION_TYPE XDG_CURRENT_DESKTOP
+
+shell-alt=Space:lxqt-runner
+shell-alt=F2:lxqt-runner
+shell-meta=l:lxqt-leave --lockscreen
+
+meta=p:pcmanfm-qt
+meta=Return:qterminal
+meta=f:featherpad
+
+meta=Left:@dock-left
+meta=Right:@dock-right
+meta=Space:@toggle-maximized
+meta=Home:@workspace-begin
+meta=End:@workspace-end
+meta=Page_Up:@workspace-up
+meta=Page_Down:@workspace-down
+ctrl-alt=BackSpace:@exit

startlxqtwayland.in

@@ -140,6 +140,15 @@ elif [ "$COMPOSITOR" = "kwin_wayland" ]; then
     # WARNING: Option '--no-kactivities' can result in crashes with animations and corner actions.
     exec ${COMPOSITOR}_wrapper --exit-with-session lxqt-session --xwayland
 
+elif [ "$COMPOSITOR" = "miriway" ]; then
+    export XDG_CURRENT_DESKTOP="LXQt:$COMPOSITOR:mir"
+    if [ ! -f "$XDG_CONFIG_HOME/lxqt/miriway-shell.config" ]; then
+        cp "$share_dir"/lxqt/wayland/miriway/miriway-shell.config "$XDG_CONFIG_HOME/lxqt/miriway-shell.config"
+       if echo "$valid_layouts" | grep -q "$trylayout"; then
+          echo "keymap=$trylayout" >> "$XDG_CONFIG_HOME/lxqt/miriway-shell.config"
+       fi
+    exec "${share_dir}/lxqt/wayland/${COMPOSITOR}/lxqt-${COMPOSITOR}-wrapper"
+
 elif [ "$COMPOSITOR" = "wayfire" ]; then
     if [ ! -f "$XDG_CONFIG_HOME/lxqt/wayland/lxqt-wayfire.ini" ]; then
         cp "$share_dir"/lxqt/wayland/lxqt-wayfire.ini "$XDG_CONFIG_HOME"/lxqt/wayland/