agl-demo-control-panel: Refactor Settings, Config and UI scaling

V1:
    - Add template to specify new configs in config.ini
    - Add drop-down to load all configurations specified in config.ini
    - Add new assets and refine UI elements (Scaling issue fixed)
    - Add size grip to main window
    - Add options in settings to configure port and AGL's CA.pem file
    - Removed unused or redundant files

V2:
    - Check for user configs agl-demo-control-panel.ini & config.ini
      before resorting to default config.ini
    - Check for CA.pem and jwt tokens in default paths
    - Add new fields in settings for CA.pem file, jwt token path, TLS Server name
    - Fix crash in dashboard.py module due to icon.availableSizes()

V3: Add Start/Stop states for the client

V4: Block subscription event updates to the UI when values are changed on the control panel

Bug-AGL: SPEC-4905

Signed-off-by: suchinton2001 <suchinton.2001@gmail.com>
Change-Id: Id7883ba3bc88248dabb58d54e6e931f6d365fd54

1 files changed, 17 insertions, 2 deletions

diff --git a/extras/UI_Handeler.py b/extras/UI_Handeler.py
index 2bfcfc4..261df94 100644
--- a/extras/UI_Handeler.py
+++ b/extras/UI_Handeler.py
@@ -24,16 +24,30 @@ from PyQt5.QtWidgets import QDesktopWidget
 import logging
 import json
 
+from . import FeedKuksa as feed_kuksa
 from . import Kuksa_Instance as kuksa_instance
 
 # Global variables
 subscribed = False
 should_execute_callback = True
+block_subscription_updates = False
 
 class UI_Handeler(MainWindow):
     """
     This class handles the UI of the AGL Demo Control Panel application.
     """
+    def __init__(self):
+        self.feed_kuksa = feed_kuksa.FeedKuksa()
+        self.feed_kuksa.sending_values.connect(self.block_updates)
+        self.feed_kuksa.finished_sending_values.connect(self.unblock_updates)
+
+    def block_updates(self):
+        global block_subscription_updates
+        block_subscription_updates = True
+
+    def unblock_updates(self):
+        global block_subscription_updates
+        block_subscription_updates = False
 
     def Hide_Navbar(self, bool_arg):
         """
@@ -143,9 +157,10 @@ class UI_Handeler(MainWindow):
         Args:
         - data: The data received from the signal.
         """
-        global should_execute_callback
-        if should_execute_callback is False:
+        global block_subscription_updates
+        if block_subscription_updates:
             return
+        
         IC_Page = self.stackedWidget.widget(1)
         HVAC_Page = self.stackedWidget.widget(2)