Add in key-value datastore. Closes #25 and #24

g13gui/applet/manager.py

@@ -32,6 +32,7 @@ class AppletManager(dbus.service.Object, Subject):
 
         # [name] -> (sender, proxy)
         self._applets = {}
+        self._datastore = {}
 
         self._switcher = Switcher(self)
         self._lastApplet = self._switcher
@@ -88,10 +89,15 @@ class AppletManager(dbus.service.Object, Subject):
     def _removeActiveApplet(self):
         senders = {proxy: name for (name, (_, proxy)) in self._applets.items()}
         print('senders is %s' % (repr(senders)))
-        name = senders[self._activeApplet]
-        del self._applets[name]
 
-        self.addChange(ChangeType.REMOVE, 'applet', name)
+        try:
+            name = senders[self._activeApplet]
+            del self._applets[name]
+            self.addChange(ChangeType.REMOVE, 'applet', name)
+        except KeyError as err:
+            print('Desync occurred: senders does not contain %s!',
+                  (self._activeApplet))
+
         self._activeApplet = self._switcher
         self._lastApplet = self._switcher
         self.activeApplet = 'Switcher'
@@ -196,3 +202,22 @@ class AppletManager(dbus.service.Object, Subject):
             return False
 
         GLib.idle_add(self._prefs.setSelectedProfile, profileName)
+
+    @dbus.service.method(dbus_interface=INTERFACE_NAME,
+                         in_signature='ss',
+                         sender_keyword='sender')
+    def SetKey(self, keyName, data, sender):
+        if sender not in [s[0] for s in self._applets.values()]:
+            print('Sender %s is not in the registered list of applets.' % (sender))
+            return
+        self._datastore[keyName] = data
+
+    @dbus.service.method(dbus_interface=INTERFACE_NAME,
+                         in_signature='s', out_signature='s',
+                         sender_keyword='sender')
+    def GetKey(self, keyName, sender):
+       if sender not in [s[0] for s in self._applets.values()]:
+           print('Sender %s is not in the registered list of applets.' % (sender))
+           return ''
+       return self._datastore.get(keyName, '')
+

g13gui/applets/clock.py

@@ -2,6 +2,7 @@ import gi
 import time
 import enum
 import psutil
+import json
 
 from g13gui.applet.applet import Applet
 from g13gui.applet.applet import BUTTONS
@@ -23,6 +24,7 @@ class ClockMode(enum.Enum):
 
 class ClockApplet(Applet):
     NAME = 'Clock'
+    DATASTORE_KEY = 'com.theonelab.g13gui.applets.clock'
 
     def __init__(self):
         Applet.__init__(self, ClockApplet.NAME)
@@ -108,6 +110,34 @@ class ClockApplet(Applet):
         elif key == 'L3':
             self._ramGraphToggle.toggle()
             self._ramGraph.visible = self._ramGraphToggle.isOn
+        GLib.idle_add(self._storeSettings)
+
+    def onRegistered(self):
+        GLib.idle_add(self._loadSettings)
+
+    def _storeSettings(self):
+        settings = json.dumps([
+            self._clockMode.value,
+            self._loadGraph.visible,
+            self._ramGraph.visible
+        ])
+        print(f'Storing settings [{settings}]')
+        self.manager.SetKey(ClockApplet.DATASTORE_KEY, settings)
+
+    def _loadSettings(self):
+        settings = self.manager.GetKey(ClockApplet.DATASTORE_KEY)
+        print(f'Loaded settings are [{settings}]')
+        if settings:
+            (clockMode,
+             loadGraphVisible,
+             ramGraphVisible) = json.loads(settings)
+            self._clockMode = ClockMode(clockMode)
+            self._loadGraph.visible = loadGraphVisible
+            self._loadGraphToggle.isOn = loadGraphVisible
+            self._ramGraph.visible = ramGraphVisible
+            self._ramGraphToggle.isOn = ramGraphVisible
+            self._onModeSwitch()
+            self._update()
 
 
 def main():