screensaver and touchpad settings

defaults/main.yaml

@@ -0,0 +1,6 @@
+---
+
+screensaver_enforce_settings: false
+screensaver_locktime: 10
+screensaver_theme: screensavers-popsquares
+screensaver_sleeptime: "{{screensaver_locktime}}"

files/mate-screensaver-helper-inhibition.py

@@ -0,0 +1,142 @@
+#!/usr/bin/python3
+import os
+import sys
+import time
+
+import dbus
+import dbus.service
+import dbus.mainloop.glib
+dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+from gi.repository import GObject as gobject
+
+# DBus connection information for MATE screensaver
+DBUS_MSCR_WAIT = 60
+DBUS_MSCR_DBUS = dbus.SessionBus()
+DBUS_MSCR_NAME = "org.mate.ScreenSaver"
+DBUS_MSCR_PATH = "/"
+DBUS_MSCR_IFACE_MAIN = "org.mate.ScreenSaver"
+
+# DBus listening information for the Idle Inhibition Spec
+DBUS_IIS_DBUS = dbus.SessionBus()
+DBUS_IIS_NAME = "org.freedesktop.ScreenSaver"
+DBUS_IIS_PATH = "/org/freedesktop/ScreenSaver"
+DBUS_IIS_PATH2= "/ScreenSaver"
+DBUS_IIS_IFACE_MAIN = "org.freedesktop.ScreenSaver"
+
+# Connect to the system and session bus
+bus_system  = dbus.SystemBus()
+bus_session = dbus.SessionBus()
+
+# Connect to MATE screensaver
+print("Waiting for screensaver...")
+for i in range(DBUS_MSCR_WAIT):
+	try:
+		mate_screensaver = dbus.Interface(
+				bus_session.get_object(DBUS_MSCR_NAME, DBUS_MSCR_PATH),
+				DBUS_MSCR_IFACE_MAIN
+		)
+	except dbus.exceptions.DBusException:
+		# Screensaver not running yet
+		if i < (DBUS_MSCR_WAIT - 1):
+			time.sleep(1)
+		else:
+			print("MATE screensaver not running, aborting!", file=sys.stderr)
+			sys.exit(2)
+	else:
+		print("MATE screensaver connected!")
+		break
+
+
+class IdleInhibitor(object):
+	"""
+	Represents a single client that inhibits the screensaver
+	"""
+	def __init__(self, screensaver, name, reason, cookie, unique_name):
+		self.screensaver = screensaver
+
+		self.name        = name
+		self.reason      = reason
+		self.cookie      = cookie
+		self.unique_name = unique_name
+
+		# Tell MATE screensaver about the application we are proxying
+		self._cookie = self.screensaver.Inhibit(name, reason)
+
+	def destroy(self):
+		# Stop bothering MATE screensaver
+		self.screensaver.UnInhibit(self._cookie)
+
+
+# Create DBus interface
+class IdleInhibitionService(dbus.service.Object):
+	def __init__(self, mate_screensaver):
+		# Store connection to screensaver
+		self.screensaver = mate_screensaver
+
+		# Counter for inhibition requests (used for cookies)
+		self.counter = 1
+
+		# Storage for clients
+		self.inhibitors = []
+
+		# Store constants
+		self.bus   = DBUS_IIS_DBUS
+		self.path  = DBUS_IIS_PATH
+		self.path2 = DBUS_IIS_PATH2
+
+		# Claim bus name with both paths used by GNOME
+		dbus.service.Object.__init__(self,
+				self.bus, self.path, dbus.service.BusName(DBUS_IIS_NAME, self.bus)
+		)
+		dbus.service.Object.__init__(self,
+                self.bus, self.path2, dbus.service.BusName(DBUS_IIS_NAME, self.bus)
+        )
+
+	def on_name_change(self, sender, unique_name):
+		print("mate-screensaver-helper-inhibition: on_name_change: '%s', '%s'" % (sender, unique_name))
+
+		if sender != unique_name:
+			for inhibitor in self.inhibitors:
+				if inhibitor.unique_name == sender:
+					self.UnInhibit(inhibitor.cookie, sender)
+
+	@dbus.service.method(DBUS_IIS_IFACE_MAIN, "ss", "u", sender_keyword="sender")
+	def Inhibit(self, application_name, reason_for_inhibit, sender):
+		print("mate-screensaver-helper-inhibition: Inhibit: '%s', '%s' -> %d (from '%s')"
+				% (application_name, reason_for_inhibit, self.counter + 1, sender))
+
+		# Create new cookie
+		self.counter += 1
+
+		# Add inhibitor
+		self.inhibitors.append(IdleInhibitor(
+			self.screensaver,
+			application_name,
+			reason_for_inhibit,
+			self.counter,
+			sender
+		))
+
+		# Watch if bus name owner disappears
+		self.bus.watch_name_owner(sender, lambda name: self.on_name_change(sender, name))
+
+		return self.counter
+
+	@dbus.service.method(DBUS_IIS_IFACE_MAIN, "u", "", sender_keyword="sender")
+	def UnInhibit(self, cookie, sender):
+		print("mate-screensaver-helper-inhibition: UnInhibit: %d (from '%s')" % (cookie, sender))
+
+		for inhibitor in self.inhibitors:
+			if inhibitor.cookie == cookie and inhibitor.unique_name == sender:
+				# Stop inhibiting
+				inhibitor.destroy()
+
+				# Remove inhibitor from list
+				self.inhibitors.remove(inhibitor)
+
+
+# Create service
+service = IdleInhibitionService(mate_screensaver)
+
+# Wait for stuff to happen
+gobject.MainLoop().run()

tasks/dconf-lock.yaml

@@ -16,7 +16,6 @@
     dest: /etc/dconf/profile/user
   notify: dconf update
 
-
 - name: dconf local db directory
   file:
     path: /etc/dconf/db/local.d/
@@ -24,7 +23,7 @@
 
 - name: dconf settings
   template:
-    src: settings.j2
+    src: dconf-lock/settings.j2
     dest: /etc/dconf/db/local.d/{{dconf_lock_id}}
   notify: dconf update
 
@@ -35,6 +34,6 @@
 
 - name: dconf locks
   template:
-    src: locks.j2
+    src: dconf-lock/locks.j2
     dest: /etc/dconf/db/local.d/locks/{{dconf_lock_id}}
   notify: dconf update

tasks/main.yaml

@@ -11,3 +11,10 @@
   apt:
     pkg: dunst
     state: absent
+
+- name: xorg touchpad config
+  template:
+    src: touchpad.conf.j2
+    dest: /etc/X11/xorg.conf.d/30-touchpad.conf
+
+- import_tasks: screensaver.yaml

tasks/screensaver.yaml

@@ -0,0 +1,44 @@
+---
+
+- name: ensure old screensavers are absent
+  apt:
+    pkg:
+      - light-locker
+      - xscreensaver
+    state: absent
+
+- name: gdmflexiserver dummy script
+  copy:
+    src: gdmflexiserver-fake.sh
+    dest: /usr/local/bin/gdmflexiserver
+    mode: 0755
+
+# Bug: https://github.com/mate-desktop/mate-screensaver/issues/57
+# https://gist.github.com/alexander255/9b991816418e4e60ee7c
+- name: mate-screensaver-helper-inhibition script
+  copy:
+    src: mate-screensaver-helper-inhibition.py
+    dest: /usr/local/bin/mate-screensaver-helper-inhibition
+    mode: 0755
+
+- import_tasks: dconf-lock.yaml
+  vars:
+    dconf_lock_id: screensaver
+    dconf_lock_settings:
+      /org/mate/screensaver:
+        idle-activation-enabled: 'true'
+        lock-enabled: 'true'
+        mode: "'single'"
+        themes: "['{{screensaver_theme}}']"
+      /org/mate/desktop/session:
+        idle-delay: "{{ screensaver_locktime | int }}"
+      /org/mate/power-manager:
+        sleep-display-ac: "{{ screensaver_sleeptime | int * 60 }}"
+    dconf_lock_paths:
+      - /org/mate/desktop/session/idle-delay
+      - /org/mate/screensaver/idle-activation-enabled
+      - /org/mate/screensaver/lock-enabled
+      - /org/mate/screensaver/mode
+      - /org/mate/screensaver/themes
+      - /org/mate/power-manager/sleep-display-ac
+  when: "{{screensaver_enforce_settings}}"

templates/gdmflexiserver-fake.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+/usr/bin/dm-tool switch-to-greeter

templates/touchpad.conf.j2

@@ -0,0 +1,7 @@
+Section "InputClass"
+    Identifier "touchpad"
+    Driver "libinput"
+    MatchIsTouchpad "on"
+    Option "Tapping" "on"
+    Option "TappingButtonMap" "lrm"
+EndSection

vars/main.yaml

@@ -122,6 +122,17 @@ desktop_packages:
   - chromium-l10n
   - webext-ublock-origin
 
+  # lockscreen
+  - mate-screensaver
+  - xscreensaver-gl
+  - python3
+  - mate-power-manager
+  - xautolock
+  - xss-lock
+  - xbacklight
+  - i3lock
+  - xssproxy
+
   # xfce
   - xfce4