Added logout function

LockWindow.py

@@ -9,6 +9,7 @@ _ = locale.gettext
 
 class LockWindow(Gtk.Window):
     __gsignals__ = {
+        'logout': (GObject.SIGNAL_RUN_FIRST, None, ()),
         'tryUnlock': (GObject.SIGNAL_RUN_FIRST, None, (str,))
     }
 
@@ -44,40 +45,56 @@ class LockWindow(Gtk.Window):
         self.unlockWindow.connect('delete-event', lambda w, e: True)
 
         self.promptEntry.connect('activate', lambda w: self._tryUnlock())
+        self.logoutButton.connect('clicked', lambda w: self._logout())
         self.unlockButton.connect('clicked', lambda w: self._tryUnlock())
 
-        self.reset()
+        self.reset(True)
+
+    def _logout(self):
+        self.promptEntry.set_sensitive(False)
+        self.unlockButton.set_sensitive(False)
+        self.logoutButton.set_sensitive(False)
+        GLib.idle_add(lambda: self.emit('logout'))
 
     def _tryUnlock(self):
         self.promptEntry.set_sensitive(False)
         self.unlockButton.set_sensitive(False)
+        self.logoutButton.set_sensitive(False)
         GLib.idle_add(lambda: self.emit('tryUnlock', self.promptEntry.get_text()))
 
-    def reset(self):
+    def _update(self):
+        self.promptEntry.set_sensitive(self._enablePromptEntry)
+        self.logoutButton.set_sensitive(self._enableLogoutButton)
+        self.unlockButton.set_sensitive(self._enableUnlockButton)
+
+    def reset(self, resetButtons = False):
+        if resetButtons:
+            self._enablePromptEntry = True
+            self._enableLogoutButton = False
+            self._enableUnlockButton = True
+
         self.promptEntry.set_text('')
-        self.promptEntry.set_sensitive(True)
+        self.messageLabel.set_label('')
+        self._update()
+
         self.promptEntry.grab_focus()
 
-        self.unlockButton.set_sensitive(True)
-
-        self.messageLabel.set_label('')
-
-        self.logoutButton.set_sensitive(False)
 
     def updateLockMessage(self, username, logoutTime = None):
         if logoutTime is None:
             self.lockLabel.set_markup(_('This computer is currently locked by the user <i>{username}</i>.').format(username=GLib.markup_escape_text(username)))
-            self.logoutButton.set_sensitive(False)
+            self._enableLogoutButton = False
         elif logoutTime > 0:
             self.lockLabel.set_markup(
                 _('This computer is currently locked by the user <i>{username}</i>.\nThe user can be logged out in {minutes:02}:{seconds:02} minutes.').format(
                     username=GLib.markup_escape_text(username), minutes=logoutTime//60, seconds=logoutTime%60))
-            self.logoutButton.set_sensitive(False)
+            self._enableLogoutButton = False
         else:
             self.lockLabel.set_markup(
                 _('This computer is currently locked by the user <i>{username}</i>.\nThe user can be logged out now.').format(
                     username=GLib.markup_escape_text(username)))
-            self.logoutButton.set_sensitive(True)
+            self._enableLogoutButton = True
+        self._update()
 
     def setAuthMessage(self, message):
         self.messageLabel.set_label(message)
@@ -92,4 +109,4 @@ class LockWindow(Gtk.Window):
         self.unlockWindow.hide()
         self.hide()
 
-        self.reset()
+        self.reset(True)

Locker.py

@@ -50,3 +50,10 @@ class Locker(object):
             self.locked = False
 
             GLib.timeout_add_seconds(1, self._checkLock)
+
+    def _canLogout(self):
+        return (self.locked and self.doLogout is not None and self.currentLogoutTimeout <= 0)
+
+    def logout(self):
+        if self._canLogout():
+            self.doLogout()

pylock.py

@@ -46,7 +46,7 @@ def lock(timeLeft):
     window.lock()
 
 def logout():
-    pass
+    exit()
 
 def updateTimeout(timeLeft):
     window.updateLockMessage(username, timeLeft)
@@ -64,6 +64,7 @@ def tryUnlock(w, password):
 
     return True
 
+window.connect('logout', lambda w: locker.logout())
 window.connect('tryUnlock', tryUnlock)
 
 Gtk.main()