Merge pull request #3480 from thyttan/delaylock

delaylock: delay lock 5 sec after backlight off

apps/delaylock/ChangeLog

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+0.01: New App!

apps/delaylock/README.md

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+# Delayed Locking
+
+Delay the locking of the touchscreen to 5 seconds after the backlight turns off. Giving you the chance to interact with the watch without having to press the hardware button again.
+
+## Usage
+
+Just install and the behavior is tweaked at boot time.
+
+## Features
+
+- respects the LCD Timeout and Brightness as configured in the settings app.
+
+## Requests
+
+Tag @thyttan in an issue to https://gitbub.com/espruino/BangleApps/issues to report problems or suggestions.
+
+## Creator
+
+thyttan
+
+## Acknowledgements
+
+Inspired by the conversation between Gordon Williams and user156427 linked here: https://forum.espruino.com/conversations/392219/

apps/delaylock/boot.js

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+{
+  let backlightTimeout = Bangle.getOptions().backlightTimeout;
+  let brightness = require("Storage").readJSON("setting.json", true);
+  brightness = brightness?brightness.brightness:1;
+
+  Bangle.setOptions({
+    backlightTimeout: backlightTimeout,
+    lockTimeout: backlightTimeout+5000
+  });
+
+  let turnLightsOn = (_,numOrObj)=>{
+    if (!Bangle.isBacklightOn()) {
+      Bangle.setLCDPower(brightness);
+      if (typeof numOrObj !== "number") E.stopEventPropagation(); // Touches will not be passed on to other listeners, but swipes will.
+    }
+  };
+
+  setWatch(turnLightsOn, BTN1, { repeat: true, edge: 'rising' });
+  Bangle.prependListener("swipe", turnLightsOn);
+  Bangle.prependListener("touch", turnLightsOn);
+}

apps/delaylock/metadata.json

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+{ "id": "delaylock",
+  "name": "Delayed Locking",
+  "version":"0.01",
+  "description": "Delay the locking of the screen to 5 seconds after the backlight turns off.",
+  "icon": "app.png",
+  "tags": "settings, configuration, backlight, touchscreen, screen",
+  "type": "bootloader",
+  "supports" : ["BANGLEJS2"],
+  "readme": "README.md",
+  "storage": [
+    {"name":"delaylock.boot.js","url":"boot.js"}
+  ]
+}