widbatpc remove jitter option

Add option 'Remove Jitter'='Drop only' to prevent percentage from getting up again when not charging

apps/hwid_a_battery_widget/metadata.json

@@ -9,6 +9,7 @@
   "readme": "README.md",
   "description": "Simple and slim battery widget with charge status and percentage",
   "tags": "widget,battery",
+  "provides_widgets" : ["battery"],
   "storage": [
     {"name":"hwid_a_battery_widget.wid.js","url":"widget.js"}
   ]

apps/wid_a_battery_widget/metadata.json

@@ -9,6 +9,7 @@
   "readme": "README.md",
   "description": "Simple and slim battery widget with charge status and percentage",
   "tags": "widget,battery",
+  "provides_widgets" : ["battery"],
   "storage": [
     {"name":"wid_a_battery_widget.wid.js","url":"widget.js"}
   ]

apps/widbatpc/ChangeLog

@@ -13,3 +13,4 @@
 0.14: Fix drawing the bar when charging
 0.15: Added option to always display the icon when charging (useful if 'hide if charge greater than' is enabled)
 0.16: Increase screen update rate when charging
+0.17: Add option 'Remove Jitter'='Drop only' to prevent percentage from getting up again when not charging

apps/widbatpc/metadata.json

@@ -2,7 +2,7 @@
   "id": "widbatpc",
   "name": "Battery Level Widget (with percentage)",
   "shortName": "Battery Widget",
-  "version": "0.16",
+  "version": "0.17",
   "description": "Show the current battery level and charging status in the top right of the clock, with charge percentage",
   "icon": "widget.png",
   "type": "widget",

apps/widbatpc/settings.js

@@ -5,6 +5,7 @@
 (function(back) {
   const SETTINGS_FILE = 'widbatpc.json'
   const COLORS = ['By Level', 'Green', 'Monochrome']
+  const RM_JITTER_OPTIONS = [/*LANG*/'Off', /*LANG*/'Drop only'];
 
   // initialize with default settings...
   let s = {
@@ -14,6 +15,7 @@
     'charger': true,
     'hideifmorethan': 100,
     'alwaysoncharge': false,
+    'removejitter': 0,
   }
   // ...and overwrite them with any saved values
   // This way saved values are preserved if a new version adds more settings
@@ -28,7 +30,9 @@
     return function (value) {
       s[key] = value;
       storage.write(SETTINGS_FILE, s);
-      WIDGETS["batpc"].reload();
+      if ("WIDGETS" in global && WIDGETS["batpc"] !== undefined) {
+        WIDGETS["batpc"].reload();
+      }
     }
   }
 
@@ -36,17 +40,17 @@
   const menu = {
     '': { 'title': 'Battery Widget' },
     '< Back': back,
-    'Percentage': {
+    /*LANG*/'Percentage': {
       value: s.percentage,
       format: onOffFormat,
       onchange: save('percentage'),
     },
-    'Charging Icon': {
+    /*LANG*/'Charging Icon': {
       value: s.charger,
       format: onOffFormat,
       onchange: save('charger'),
     },
-    'Color': {
+    /*LANG*/'Color': {
       format: () => s.color,
       onchange: function () {
         // cycles through options
@@ -56,12 +60,12 @@
         save('color')(s.color)
       }
     },
-    'Fill Bar': {
+    /*LANG*/'Fill Bar': {
       value: s.fillbar,
       format: onOffFormat,
       onchange: save('fillbar'),
     },
-    'Hide if >': {
+    /*LANG*/'Hide if >': {
       value: s.hideifmorethan||100,
       min: 10,
       max : 100,
@@ -69,11 +73,17 @@
       format: x => x+"%",
       onchange: save('hideifmorethan'),
     },
-    'Show on charge': { // Not sure if this is readable enough in the 'big' menu
+    /*LANG*/'Show on charge': { // Not sure if this is readable enough in the 'big' menu
       value: s.alwaysoncharge,
       format: onOffFormat,
       onchange: save('alwaysoncharge'),
     },
+    /*LANG*/'Remove Jitter': {
+      value: s.removejitter,
+      min: 0, max: 1,
+      format: v => RM_JITTER_OPTIONS[v],
+      onchange: save('removejitter'),
+    },
   }
   E.showMenu(menu)
 })

apps/widbatpc/widget.js

@@ -2,6 +2,8 @@
   const intervalLow = 60000; // update time when not charging
   const intervalHigh = 2000; // update time when charging
 
+  let prevMin = 100;
+
   let COLORS = {};
 
   if (process.env.HWVERSION == 1) {
@@ -33,6 +35,7 @@
       'charger': true,
       'hideifmorethan': 100,
       'alwaysoncharge': false,
+      'removejitter': 0, // 0 == off, 1 == downwards only
     };
     Object.keys(DEFAULTS).forEach(k=>{
       if (settings[k]===undefined) settings[k]=DEFAULTS[k];
@@ -88,8 +91,18 @@
     // else...
     var s = 39;
     var x = this.x, y = this.y;
-    const l = E.getBattery(),
-          c = levelColor(l);
+    let l = E.getBattery();
+    if (setting('removejitter') === 1) {
+      // if we have seen a battery percentage that was lower than current, use lower
+      if (Bangle.isCharging()) {
+        prevMin = l; // charging is the only way to increase percentage
+      } else if (prevMin >= l) {
+        prevMin = l;
+      } else {
+        l = prevMin;
+      }
+    }
+    const c = levelColor(l);
 
     if (Bangle.isCharging() && setting('charger')) {
       g.setColor(chargerColor()).drawImage(atob(