mirror of https://github.com/espruino/BangleApps
140 lines
3.1 KiB
TypeScript
140 lines
3.1 KiB
TypeScript
const app = "drained";
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// from boot.js
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declare var drainedInterval: number | undefined;
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if(typeof drainedInterval !== "undefined")
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drainedInterval = clearInterval(drainedInterval) as undefined;
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// backlight
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Bangle.setLCDBrightness(0);
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// peripherals
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const powerNoop = () => false;
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const forceOff = (name: "GPS" | "HRM" | "Compass" /*| "Barom"*/) => {
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if ((Bangle as any)._PWR?.[name])
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(Bangle as any)._PWR[name] = [];
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// if(name === "Barom"){ setBarometerPower(...) }
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// ^^^^
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Bangle[`set${name}Power`](0, app);
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Bangle[`set${name}Power`] = powerNoop;
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};
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forceOff("GPS");
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forceOff("HRM");
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try{
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NRF.disconnect();
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NRF.sleep();
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}catch(e){
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console.log(`couldn't disable ble: ${e}`);
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}
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// events
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Bangle.removeAllListeners();
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clearWatch();
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// UI
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Bangle.setOptions({
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wakeOnFaceUp: 0,
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wakeOnTouch: 0,
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wakeOnTwist: 0,
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});
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// clock
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let nextDraw: number | undefined;
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const draw = () => {
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const x = g.getWidth() / 2;
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const y = g.getHeight() / 2 - 48;
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const date = new Date();
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const timeStr = require("locale").time(date, 1);
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const dateStr = require("locale").date(date, 0).toUpperCase() +
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"\n" +
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require("locale").dow(date, 0).toUpperCase();
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const x2 = x + 6;
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const y2 = y + 66;
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g.reset()
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.clearRect(Bangle.appRect)
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.setFont("Vector", 55)
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.setFontAlign(0, 0)
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.drawString(timeStr, x, y)
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.setFont("Vector", 24)
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.drawString(dateStr, x2, y2)
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.drawString(`${E.getBattery()}%`, x2, y2 + 48);
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if(nextDraw) clearTimeout(nextDraw);
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nextDraw = setTimeout(() => {
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nextDraw = undefined;
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draw();
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}, 60000 - (date.getTime() % 60000));
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};
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const reload = () => {
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Bangle.setUI({
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mode: "custom",
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remove: () => {
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if (nextDraw) clearTimeout(nextDraw);
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nextDraw = undefined;
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},
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btn: () => {
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E.showPrompt("Restore watch to full power?").then(v => {
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if(v){
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drainedRestore();
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}else{
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reload();
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}
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})
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}
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});
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Bangle.CLOCK=1;
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g.clear();
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draw();
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};
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reload();
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// permit other apps to put themselves into low-power mode
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Bangle.emit("drained", E.getBattery());
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// restore normal boot on charge
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const { keepStartup = true, restore = 20, exceptions = ["widdst.0"] }: DrainedSettings
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= require("Storage").readJSON(`${app}.setting.json`, true) || {};
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// re-enable normal boot code when we're above a threshold:
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function drainedRestore() { // "public", to allow users to call
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if(!keepStartup){
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try{
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eval(require('Storage').read('bootupdate.js'));
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}catch(e){
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console.log("error restoring bootupdate:" + e);
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}
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}
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load(); // necessary after updating boot.0
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}
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const checkCharge = () => {
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if(E.getBattery() < restore) return;
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drainedRestore();
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};
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if (Bangle.isCharging())
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checkCharge();
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Bangle.on("charging", charging => {
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if(charging) checkCharge();
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});
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if(!keepStartup){
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const storage = require("Storage");
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for(const boot of exceptions){
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try{
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const js = storage.read(`${boot}.boot.js`);
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if(js) eval(js);
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}catch(e){
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console.log(`error loading boot exception "${boot}": ${e}`);
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}
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}
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}
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