gipy: powersaving disabled by default + setting

you can enable it by default in the settings

apps/gipy/README.md

@@ -121,11 +121,15 @@ Few settings for now (feel free to suggest me more) :
 - brightness : how bright should screen be ? (by default 0.5, again saving power)
 - power lcd off (disabled by default): turn lcd off when inactive to save power. the watch will wake up when reaching points,
 when you touch the screen and when speed is below 13km/h.
+- powersave by default: when gipy starts is powersaving activated ? (see below)
 
 ### Powersaving
 
 Starting with release 0.20 we experiment with power saving.
 
+By default, powersaving is **disabled**. You can turn it on in the menu by checking the powersaving box.
+You can also change the default choice in the app settings (*powersave by default* setting).
+
 There are now two display modes :
 
 - active : the screen is lit back (default at 50% light but can be configured with the *brightness* setting)
@@ -140,6 +144,7 @@ Activation events are the following :
 
 - you are near (< 100m) the next point on path
 - you are slow (< *wake-up speed* setting (13 km/h by default))
+- you are lost
 - you press the button / touch the screen
 
 

apps/gipy/app.js

@@ -3,9 +3,10 @@ let displaying = false;
 let in_menu = false;
 let go_backwards = false;
 let zoomed = true;
-let powersaving = true;
 let status;
 
+let initial_options = Bangle.getOptions();
+
 let interests_colors = [
   0xffff, // Waypoints, white
   0xf800, // Bakery, red
@@ -32,10 +33,13 @@ var settings = Object.assign(
     buzz_on_turns: false,
     disable_bluetooth: true,
     power_lcd_off: false,
+    powersave_by_default: false,
   },
   s.readJSON("gipy.json", true) || {}
 );
 
+let powersaving = settings.powersave_by_default;
+
 // let profile_start_times = [];
 
 // function start_profiling() {
@@ -678,6 +682,9 @@ class Status {
     this.old_times = []; // the corresponding times
   }
   activate() {
+    if (!powersaving) {
+      return;
+    }
     this.last_activity = getTime();
     if (this.active) {
       return;
@@ -778,16 +785,10 @@ class Status {
       this.activate(); // if we go too slow turn on, we might be looking for the direction to follow
       if (!this.default_options) {
         this.default_options = true;
-
+        Bangle.setOptions(initial_options);
-        Bangle.setOptions({
-          lockTimeout: 0,
-          backlightTimeout: 10000,
-          wakeOnTwist: true,
-          powerSave: true,
-        });
       }
     } else {
-      if (this.default_options) {
+      if (this.default_options && powersaving) {
         this.default_options = false;
 
         Bangle.setOptions({

apps/gipy/settings.js

@@ -9,6 +9,7 @@
             disable_bluetooth: true,
             brightness: 0.5,
             power_lcd_off: false,
+            powersave_by_default: false,
         },
         require("Storage").readJSON(FILE, true) || {}
     );
@@ -82,5 +83,12 @@
                 writeSettings();
             }
         },
+        "powersave by default": {
+            value: settings.powersave_by_default == true,
+            onchange: (v) => {
+                settings.powersave_by_default = v;
+                writeSettings();
+            }
+        }
     });
 });