Added countdown timer application

apps.json

@@ -2855,5 +2855,17 @@
   "storage": [
     {"name":"widhrt.wid.js","url":"widget.js"}
   ]
+},
+{ "id": "countdowntimer",
+  "name" : "Countdown Timer",
+  "icon": "countdowntimer.png",
+  "version": "0.01",
+  "description": "A simple countdown timer with a focus on usability",
+  "tags": "timer, tool",
+  "readme": "README.md",
+  "storage": [
+    {"name": "countdowntimer.app.js", "url": "countdowntimer.js"},
+    {"name": "countdowntimer.img", "url": "countdowntimer-icon.js", "evaluate": true}
+  ]
 }
 ]

apps/countdowntimer/ChangeLog

@@ -0,0 +1 @@
+0.01: Initial version

apps/countdowntimer/README.md

@@ -0,0 +1,12 @@
+# countdown-timer
+
+A basic bangle.js timer with a focus on usability.
+
+* Start or Pause the timer with BTN1
+* Reset the timer with BTN2
+* Exit the application with BTN3
+* Touch the right side of the screen to increase the time amount by 1 second
+* Touch the left side of the scren to decrease the time amount by 1 second
+* Touching and holding the screen will increase or decrease the time amount by 60 seconds at a time.
+
+Icons made by [Freepik](https://www.freepik.com) from [Flaticon](https://www.flaticon.com/).

apps/countdowntimer/countdowntimer-icon.js

@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEwwgMJhvd7tEogkSC4lAC6xWUgUgNysiC6hGBL58BiMQLoYXDMJkRAAIWEC4gYJFwIABCwgXFDBAWCpoXLMYwuCigUD6czmUSmQYKC4QuD6f//8xiUzmckJJIuECwQXEDAgXGFwc/C4XykYXCmZIJCwVPCwQABCwczmgwHXYXUCwgXFGBAXC74XLGAQXELowXIVgYXF6QWF+Z3EJAhGFUganHJAoXFRooXLMAQXCLwwXHMAQXUMAQXCRwQWFC9HSiMvC40iCocxiKoEC4cTC4sRiLBDC5MiF4wXFmQXHL4/zkRHEO6H/OwwXFX5IXfd5HfC5s0C4/TC5skRwZ4LLxAXHMAxeIC4hIJLxYXEJAxGMJAgwFFw4XGGAZhD+UjLoxGEC4owDmMSIoouGJAgYBGIIXDCwYuGGAoABIQMiaIQuKDA/dCoguJJIwXHCxQYGCyIYFCyRjELZYA="))

apps/countdowntimer/countdowntimer.js

@@ -0,0 +1,232 @@
+const heatshrinkDecompress = require("heatshrink").decompress;
+
+const playIcon = heatshrinkDecompress(atob("jEYwhC/gFwBZV3BhV3u4LLBhILCEpALCBhALDu9gBaojKHZZrVQZSbLAG4A="));
+const pauseIcon = heatshrinkDecompress(atob("jEYwhC/xGIAYoL/Bf4LfAHA="));
+const resetIcon = heatshrinkDecompress(atob("jEYwg30h3u93gAgIKHBgXuBYgIBoEEBoQWFAgQMCBYgrBE4giEBYYjGAgY+DBY4AHBZlABZQ7DLIpTFAo5ZJLYYDFTZKzLAGQA=="));
+const closeIcon = heatshrinkDecompress(atob("jEYwhC/4AEDhgKEhnMAofMCIgGECAoHFCwwIDCw4YDCxAYCCxALMEZY7KKZZrKQZibKAHIA="));
+
+const timerState = {
+    IDLE: 0,
+    RUNNING: 1
+};
+
+let currentState = timerState.IDLE;
+let remainingSeconds = 0;
+let countdownInterval = null;
+let increasingInterval = null;
+let decreasingInterval = null;
+let isDecreasingRemainingSeconds = false;
+let isIncreasingRemainingSeconds = false;
+
+function main() {
+    g.clear();
+    g.setFont("Vector", 40);
+    g.setFontAlign(0, 0);
+
+    registerInputHandlers();
+
+    draw();
+}
+
+function registerInputHandlers() {
+    setWatch(onPrimaryButtonPressed, BTN1, { repeat: true });
+    setWatch(onResetButtonPressed, BTN2, { repeat: true });
+    setWatch(onExitButtonPressed, BTN3, { repeat: true });
+    setWatch(onDecreaseRemainingSecondsPressed, BTN4, { repeat: true, edge: "rising" });
+    setWatch(onIncreaseRemainingSecondsPressed, BTN5, { repeat: true, edge: "rising" });
+    setWatch(onDecreaseRemainingSecondsReleased, BTN4, { repeat: true, edge: "falling" });
+    setWatch(onIncreaseRemainingSecondsReleased, BTN5, { repeat: true, edge: "falling" });
+}
+
+function draw() {
+    g.clearRect(200, 0, 240, 240);
+    g.clearRect(0, 0, 240, 80);
+
+    drawRemainingSecondsPanel();
+
+    g.drawImage(resetIcon, 216, 108);
+    g.drawImage(closeIcon, 216, 188);
+
+    if (currentState == timerState.IDLE) {
+        g.drawImage(playIcon, 216, 28);
+    } else {
+        g.drawImage(pauseIcon, 216, 28);
+    }
+
+    g.flip();
+}
+
+function drawRemainingSecondsPanel() {
+    g.clearRect(0, 100, 200, 140);
+    g.drawString(formatRemainingSeconds(), 105, 120);
+
+    if (currentState == timerState.IDLE) {
+        drawSubtractRemainingSeconds();
+        drawIncreaseRemainingSeconds();
+    } else {
+        g.setColor(0.4, 0.4, 0.4);
+        drawSubtractRemainingSeconds();
+        drawIncreaseRemainingSeconds();
+        g.setColor(-1);
+    }
+}
+
+function drawSubtractRemainingSeconds() {
+    if (isDecreasingRemainingSeconds) {
+        drawFilledCircle(22, 117, 15);
+    }
+
+    g.drawString("-", 25, 120);
+}
+
+function drawIncreaseRemainingSeconds() {
+    if (isIncreasingRemainingSeconds) {
+        drawFilledCircle(182, 117, 15);
+    }
+
+    g.drawString("+", 185, 120);
+}
+
+function drawFilledCircle(x, y, radians) {
+    g.setColor(0.1, 0.37, 0.87);
+    g.fillCircle(x, y, radians);
+    g.setColor(-1);
+}
+
+function formatRemainingSeconds() {
+    const minutes = Math.floor(remainingSeconds / 60);
+    const minutesTens = Math.floor(minutes / 10);
+    const minutesUnits = minutes % 10;
+
+    const seconds = remainingSeconds % 60;
+    const secondsTens = Math.floor(seconds / 10);
+    const secondsUnits = seconds % 10;
+
+    return `${minutesTens}${minutesUnits}:${secondsTens}${secondsUnits}`;
+}
+
+function onPrimaryButtonPressed() {
+    if (isIncreasingRemainingSeconds || isDecreasingRemainingSeconds) return;
+
+    if (currentState == timerState.IDLE) {
+        if (remainingSeconds == 0) return;
+        currentState = timerState.RUNNING;
+        beginCountdown();
+        draw();
+    } else {
+        currentState = timerState.IDLE;
+        stopCountdown();
+        draw();
+    }
+}
+
+function beginCountdown() {
+    countdownInterval = setInterval(countdown, 1000);
+}
+
+function countdown() {
+    --remainingSeconds;
+
+    if (remainingSeconds <= 0) {
+        remainingSeconds = 0;
+        stopCountdown();
+    }
+
+    drawRemainingSecondsPanel();
+
+    if (remainingSeconds <= 0) {
+        drawStopMessage();
+    }
+}
+
+function drawStopMessage() {
+    draw();
+    Bangle.buzz(800);
+    g.setFont("Vector", 30);
+    g.setColor(1.0, 0.91, 0);
+    g.drawString("Time's Up!", 105, 40);
+    g.setColor(-1);
+    g.setFont("Vector", 40);
+}
+
+function stopCountdown() {
+    clearInterval(countdownInterval);
+    countdownInterval = null;
+    currentState = timerState.IDLE;
+}
+
+function onResetButtonPressed() {
+    currentState = timerState.IDLE;
+    remainingSeconds = 0;
+    draw();
+}
+
+function onExitButtonPressed() {
+    Bangle.showLauncher();
+}
+
+function onIncreaseRemainingSecondsPressed() {
+    if (currentState == timerState.RUNNING) return;
+    incremementRemainingSeconds();
+
+    increasingInterval = setInterval(() => {
+        remainingSeconds += 60;
+
+        if (remainingSeconds >= 5999) {
+            remainingSeconds = 5999;
+        }
+
+        drawRemainingSecondsPanel();
+    }, 250);
+
+    isIncreasingRemainingSeconds = true;
+
+    drawRemainingSecondsPanel();
+}
+
+function incremementRemainingSeconds() {
+    if (remainingSeconds >= 5999) return;
+    ++remainingSeconds;
+}
+
+function onIncreaseRemainingSecondsReleased() {
+    if (currentState == timerState.RUNNING) return;
+    clearInterval(increasingInterval);
+    isIncreasingRemainingSeconds = false;
+    drawRemainingSecondsPanel();
+}
+
+function onDecreaseRemainingSecondsPressed() {
+    if (currentState == timerState.RUNNING) return;
+    decreaseRemainingSeconds();
+
+    decreasingInterval = setInterval(() => {
+        remainingSeconds -= 60;
+        
+        if (remainingSeconds < 0) {
+            remainingSeconds = 0;
+        }
+
+        drawRemainingSecondsPanel();
+    }, 250);
+
+    isDecreasingRemainingSeconds = true;
+
+    drawRemainingSecondsPanel();
+}
+
+function decreaseRemainingSeconds() {
+    if (remainingSeconds <= 0) return;
+    --remainingSeconds;
+}
+
+function onDecreaseRemainingSecondsReleased() {
+    if (currentState == timerState.RUNNING) return;
+
+    clearInterval(decreasingInterval);
+
+    isDecreasingRemainingSeconds = false;
+    draw();
+}
+
+main();