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seperate single seasonals/Seasonals-Halloween/add_to_index_html.html

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+<script src="/seasonals/halloween.js"></script>
+<link rel="stylesheet" href="/seasonal/halloween.css">
+<div class="halloween-container"></div>

seperate single seasonals/Seasonals-Halloween/halloween.css

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+.halloween-container {
+    display: block;
+    pointer-events: none;
+    z-index: 0;
+    overflow: hidden;
+}
+
+.halloween {
+    position: fixed;
+    bottom: -10%;
+    z-index: 0;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+    -webkit-user-select: none;
+    cursor: default;
+    -webkit-animation-name: halloween-fall, halloween-shake;
+    -webkit-animation-duration: 10s, 3s;
+    -webkit-animation-timing-function: linear, ease-in-out;
+    -webkit-animation-iteration-count: infinite, infinite;
+    -webkit-animation-play-state: running, running;
+    animation-name: halloween-fall, halloween-shake;
+    animation-duration: 10s, 3s;
+    animation-timing-function: linear, ease-in-out;
+    animation-iteration-count: infinite, infinite;
+    animation-play-state: running, running
+}
+
+@-webkit-keyframes halloween-fall {
+    0% {
+        bottom: -10%
+    }
+
+    100% {
+        bottom: 100%
+    }
+}
+
+@-webkit-keyframes halloween-shake {
+
+    0%,
+    100% {
+        -webkit-transform: translateX(0);
+        transform: translateX(0)
+    }
+
+    50% {
+        -webkit-transform: translateX(80px);
+        transform: translateX(80px)
+    }
+}
+
+@keyframes halloween-fall {
+    0% {
+        bottom: -10%
+    }
+
+    100% {
+        bottom: 100%
+    }
+}
+
+@keyframes halloween-shake {
+
+    0%,
+    100% {
+        transform: translateX(0)
+    }
+
+    50% {
+        transform: translateX(80px)
+    }
+}
+
+.halloween:nth-of-type(0) {
+    left: 1%;
+    -webkit-animation-delay: 0s, 0s;
+    animation-delay: 0s, 0s
+}
+
+.halloween:nth-of-type(1) {
+    left: 10%;
+    -webkit-animation-delay: 1s, 1s;
+    animation-delay: 1s, 1s
+}
+
+.halloween:nth-of-type(2) {
+    left: 20%;
+    -webkit-animation-delay: 6s, .5s;
+    animation-delay: 6s, .5s
+}
+
+.halloween:nth-of-type(3) {
+    left: 30%;
+    -webkit-animation-delay: 4s, 2s;
+    animation-delay: 4s, 2s
+}
+
+.halloween:nth-of-type(4) {
+    left: 40%;
+    -webkit-animation-delay: 2s, 2s;
+    animation-delay: 2s, 2s
+}
+
+.halloween:nth-of-type(5) {
+    left: 50%;
+    -webkit-animation-delay: 8s, 3s;
+    animation-delay: 8s, 3s
+}
+
+.halloween:nth-of-type(6) {
+    left: 60%;
+    -webkit-animation-delay: 6s, 2s;
+    animation-delay: 6s, 2s
+}
+
+.halloween:nth-of-type(7) {
+    left: 70%;
+    -webkit-animation-delay: 2.5s, 1s;
+    animation-delay: 2.5s, 1s
+}
+
+.halloween:nth-of-type(8) {
+    left: 80%;
+    -webkit-animation-delay: 1s, 0s;
+    animation-delay: 1s, 0s
+}
+
+.halloween:nth-of-type(9) {
+    left: 90%;
+    -webkit-animation-delay: 3s, 1.5s;
+    animation-delay: 3s, 1.5s
+}
+
+.halloween:nth-of-type(10) {
+    left: 25%;
+    -webkit-animation-delay: 2s, 0s;
+    animation-delay: 2s, 0s
+}
+
+.halloween:nth-of-type(11) {
+    left: 65%;
+    -webkit-animation-delay: 4s, 2.5s;
+    animation-delay: 4s, 2.5s
+}

seperate single seasonals/Seasonals-Halloween/halloween.js

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+const halloween = true; // enable/disable halloween
+const randomSymbols = true; // enable more random symbols
+const randomSymbolsMobile = false; // enable random symbols on mobile devices
+const enableDiffrentDuration = true; // enable different duration for the random halloween symbols
+const halloweenCount = 25; // count of random extra symbols
+
+let msgPrinted = false; // flag to prevent multiple console messages
+
+// function to check and control the halloween
+function toggleHalloween() {
+  const halloweenContainer = document.querySelector('.snow-container');
+  if (!halloweenContainer) return;
+
+  const videoPlayer = document.querySelector('.videoPlayerContainer');
+  const trailerPlayer = document.querySelector('.youtubePlayerContainer');
+  const isDashboard = document.body.classList.contains('dashboardDocument');
+  const hasUserMenu = document.querySelector('#app-user-menu');
+
+  // hide halloween if video/trailer player is active or dashboard is visible
+  if (videoPlayer || trailerPlayer || isDashboard || hasUserMenu) {
+    halloweenContainer.style.display = 'none'; // hide halloween
+    if (!msgPrinted) {
+      console.log('Halloween hidden');
+      msgPrinted = true;
+    }
+  } else {
+    halloweenContainer.style.display = 'block'; // show halloween
+    if (msgPrinted) {
+      console.log('Halloween visible');
+      msgPrinted = false;
+    }
+  }
+}
+
+// observe changes in the DOM
+const observer = new MutationObserver(toggleHalloween);
+
+// start observation
+observer.observe(document.body, {
+  childList: true,    // observe adding/removing of child elements
+  subtree: true,      // observe all levels of the DOM tree
+  attributes: true    // observe changes to attributes (e.g. class changes)
+});
+
+
+const images = [
+  "./seasonals/halloween_images/ghost_20x20.png",
+  "./seasonals/halloween_images/bat_20x20.png",
+  "./seasonals/halloween_images/pumpkin_20x20.png",
+];
+
+// remove commented out image array to enable test site working, comment out above images array for that
+/*
+const images = [
+  "./images/ghost_20x20.png",
+  "./images/bat_20x20.png",
+  "./images/pumpkin_20x20.png",
+];
+*/
+
+function addRandomSymbols(count) {
+  const halloweenContainer = document.querySelector('.halloween-container'); // get the halloween container
+  if (!halloweenContainer) return; // exit if halloween container is not found
+
+  console.log('Adding random halloween symbols');
+
+
+  for (let i = 0; i < count; i++) {
+    // create a new halloween elements
+    const halloweenDiv = document.createElement("div");
+    halloweenDiv.className = "halloween";
+
+    // pick a random halloween symbol
+    const imageSrc = images[Math.floor(Math.random() * images.length)];
+    const img = document.createElement("img");
+    img.src = imageSrc;
+
+    halloweenDiv.appendChild(img);
+
+
+    // set random horizontal position, animation delay and size(uncomment lines to enable) 
+    const randomLeft = Math.random() * 100; // position (0% to 100%)
+    const randomAnimationDelay = Math.random() * 10; // delay (0s to 10s)
+    const randomAnimationDelay2 = Math.random() * 3; // delay (0s to 3s)
+
+    // apply styles
+    halloweenDiv.style.left = `${randomLeft}%`;
+    halloweenDiv.style.animationDelay = `${randomAnimationDelay}s, ${randomAnimationDelay2}s`;
+
+    // set random animation duration
+    if (enableDiffrentDuration) {
+      const randomAnimationDuration = Math.random() * 10 + 6; // delay (6s to 10s)
+      const randomAnimationDuration2 = Math.random() * 5 + 2; // delay (2s to 5s)
+      halloweenDiv.style.animationDuration = `${randomAnimationDuration}s, ${randomAnimationDuration2}s`;
+    }
+
+    // add the halloween to the container
+    halloweenContainer.appendChild(halloweenDiv);
+  }
+  console.log('Random halloween symbols added');
+}
+
+// create halloween objects
+function createHalloween() {
+  const container = document.querySelector('.halloween-container') || document.createElement("div");
+
+  if (!document.querySelector('.halloween-container')) {
+    container.className = "halloween-container";
+    container.setAttribute("aria-hidden", "true");
+    document.body.appendChild(container);
+  }
+
+  for (let i = 0; i < 4; i++) {
+    images.forEach(imageSrc => {
+      const halloweenDiv = document.createElement("div");
+      halloweenDiv.className = "halloween";
+
+      const img = document.createElement("img");
+      img.src = imageSrc;
+
+      // set random animation duration
+      if (enableDiffrentDuration) {
+        const randomAnimationDuration = Math.random() * 10 + 6; // delay (6s to 10s)
+        const randomAnimationDuration2 = Math.random() * 5 + 2; // delay (2s to 5s)
+        halloweenDiv.style.animationDuration = `${randomAnimationDuration}s, ${randomAnimationDuration2}s`;
+      }
+
+      halloweenDiv.appendChild(img);
+      container.appendChild(halloweenDiv);
+    });
+  }
+}
+
+// initialize halloween after the DOM is loaded
+document.addEventListener('DOMContentLoaded', () => {
+  if (!halloween) return; // exit if halloween is disabled
+  createHalloween();
+  toggleHalloween();
+
+  const screenWidth = window.innerWidth; // get the screen width to detect mobile devices
+  if (randomSymbols && (screenWidth > 768 || randomSymbolsMobile)) { // add random halloweens only on larger screens, unless enabled for mobile devices
+    addRandomSymbols(halloweenCount);
+  }
+});

seperate single seasonals/Seasonals-Halloween/test-site.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Halloween Display</title>
+    
+    <style>
+        body {
+            background-color: black;
+            overflow: hidden;
+        }
+    </style>
+</head>
+
+<body>
+    <link rel="stylesheet" href="halloween.css">
+    <script src="halloween.js"></script>
+    <div class="halloween-container" aria-hidden="true"></div>
+</body>
+
+</html>