recorder:Period 1s + Log GPS =>record on GPS event

recorder: writeInterval becomes writeSetup

recorder:change according to some Web IDE warnings

Update apps/recorder/widget.js

Co-authored-by: Rob Pilling <robpilling@gmail.com>

recorder: use `typeof writeSetup === "number"`

apps/recorder/ChangeLog

@@ -43,3 +43,5 @@
 0.34: Avoid prompting when creating a new file (#3081)
 0.35: Handle loading without a settings file (default record setting)
 0.36: When recording with 1 second periods, log time with one decimal.
+0.37: 1 second periods + gps log => log when gps event is received, not with
+	setInterval.

apps/recorder/metadata.json

@@ -2,7 +2,7 @@
   "id": "recorder",
   "name": "Recorder",
   "shortName": "Recorder",
-  "version": "0.36",
+  "version": "0.37",
   "description": "Record GPS position, heart rate and more in the background, then download to your PC.",
   "icon": "app.png",
   "tags": "tool,outdoors,gps,widget,clkinfo",

apps/recorder/widget.js

@@ -2,7 +2,7 @@
   let storageFile; // file for GPS track
   let entriesWritten = 0;
   let activeRecorders = [];
-  let writeInterval;
+  let writeSetup;
 
   let loadSettings = function() {
     var settings = require("Storage").readJSON("recorder.json",1)||{};
@@ -194,11 +194,14 @@
     }
   }
 
+  let writeOnGPS = function() {writeLog(settings.period);};
+
   // Called by the GPS app to reload settings and decide what to do
   let reload = function() {
     var settings = loadSettings();
-    if (writeInterval) clearInterval(writeInterval);
-    writeInterval = undefined;
+    if (typeof writeSetup === "number") clearInterval(writeSetup);
+    writeSetup = undefined;
+    Bangle.removeListener('GPS', writeOnGPS);
 
     activeRecorders.forEach(rec => rec.stop());
     activeRecorders = [];
@@ -222,7 +225,12 @@
       }
       // start recording...
       WIDGETS["recorder"].draw();
-      writeInterval = setInterval(writeLog, settings.period*1000, settings.period);
+      if (settings.period===1 && settings.record.includes("gps")) {
+        Bangle.on('GPS', writeOnGPS);
+        writeSetup = true;
+      } else {
+        writeSetup = setInterval(writeLog, settings.period*1000, settings.period);
+      }
     } else {
       WIDGETS["recorder"].width = 0;
       storageFile = undefined;
@@ -230,7 +238,7 @@
   }
   // add the widget
   WIDGETS["recorder"]={area:"tl",width:0,draw:function() {
-    if (!writeInterval) return;
+    if (!writeSetup) return;
     g.reset().drawImage(atob("DRSBAAGAHgDwAwAAA8B/D/hvx38zzh4w8A+AbgMwGYDMDGBjAA=="),this.x+1,this.y+2);
     activeRecorders.forEach((recorder,i)=>{
       recorder.draw(this.x+15+(i>>1)*12, this.y+(i&1)*12);
@@ -239,7 +247,7 @@
     reload();
     Bangle.drawWidgets(); // relayout all widgets
   },isRecording:function() {
-    return !!writeInterval;
+    return !!writeSetup;
   },setRecording:function(isOn, options) {
     /* options = {
       force : [optional] "append"/"new"/"overwrite" - don't ask, just do what's requested