cleanup code and fix fastload issue

apps/rebble/ChangeLog

@@ -11,3 +11,4 @@
 0.11: fix issue https://github.com/espruino/BangleApps/issues/2128 (#2128) ( settings undefined )
 0.12: implemented widget_utils 
 0.13: convert var/function into let
+0.14: cleanup code and fix fastload issue 

apps/rebble/metadata.json

@@ -2,7 +2,7 @@
   "id": "rebble",
   "name": "Rebble Clock",
   "shortName": "Rebble",
-  "version": "0.13",
+  "version": "0.14",
   "description": "A Pebble style clock, with configurable background, three sidebars including steps, day, date, sunrise, sunset, long live the rebellion",
   "readme": "README.md",
   "icon": "rebble.png",

apps/rebble/rebble.app.js

@@ -291,48 +291,8 @@ Graphics.prototype.setFontKdamThmor = function(scale) {
   }
 
 
-  log_debug("starting..");
-  loadSettings();
-  loadLocation();
 
-
+  let chargingListener= function(charging) { 
-  if(settings.autoCycle || settings.sideTap==0)
-  {
-    Bangle.setUI({
-      mode : "clockupdown",
-      remove : function() {
-        // Called to unload all of the clock app
-        if (drawTimeout) clearTimeout(drawTimeout);
-        drawTimeout = undefined;
-        delete Graphics.prototype.setFontKdamThmor;
-      }},
-      btn=> {
-        if (btn<0) prevSidebar();
-        if (btn>0) nextSidebar();
-        draw();
-      });
- 
-  }
-  else{
-    Bangle.setUI({
-      mode : "clock",
-      remove : function() {
-        // Called to unload all of the clock app
-        if (drawTimeout) clearTimeout(drawTimeout);
-        drawTimeout = undefined;
-        delete Graphics.prototype.setFontKdamThmor;
-      }});
-  }
-
-
-  Bangle.loadWidgets();
-  draw();
-  require("widget_utils").hide();
-
-
-
-
-  Bangle.on('charging', function(charging) { 
     
     //redraw the sidebar ( with the battery )
     switch(sideBar) {
@@ -343,5 +303,55 @@ Graphics.prototype.setFontKdamThmor = function(scale) {
         drawSideBar2();
         break;
     }
+  }
+  
+  let deleteAll=function()
+  {
+    // Called to unload all of the clock app
+    if (drawTimeout) clearTimeout(drawTimeout);
+    drawTimeout = undefined;
+    delete Graphics.prototype.setFontKdamThmor;
+    Bangle.removeListener('charging',chargingListener);
+  }
+
+  let main=function(){
+
+
+    log_debug("starting..");
+    loadSettings();
+    loadLocation();
+  
+    if(settings.autoCycle || settings.sideTap==0)
+    {
+      Bangle.setUI({
+        mode : "clockupdown",
+        remove : deleteAll
+      },
+        btn=> {
+          if (btn<0) prevSidebar();
+          if (btn>0) nextSidebar();
+          draw();
         });
+  
+    }
+    else{
+      Bangle.setUI({
+        mode : "clock",
+        remove : deleteAll
+      });
+    }
+
+
+
+    Bangle.on('charging',chargingListener);
+
+
+    Bangle.loadWidgets();
+    draw();
+    require("widget_utils").hide();
+
+  }
+
+
+  main();
 }