Add Spooky theme: replace Legacy Halloween with Spooky options and implement related CSS and JavaScript for visual effects

Jellyfin.Plugin.Seasonals/Web/spooky.js

@@ -0,0 +1,144 @@
+const config = window.SeasonalsPluginConfig?.Spooky || {};
+
+const spooky = config.EnableSpooky !== undefined ? config.EnableSpooky : true; // enable/disable
+const spookyCount = config.SymbolCount || 25; // count of random extra symbols
+const enableDifferentDuration = config.EnableDifferentDuration !== undefined ? config.EnableDifferentDuration : true;
+const enableSpookySway = config.EnableSpookySway !== undefined ? config.EnableSpookySway : true;
+const spookySize = config.SpookySize || 20;
+const spookyGlowSize = config.SpookyGlowSize !== undefined ? config.SpookyGlowSize : 2;
+
+let msgPrinted = false;
+
+// function to check and control the spooky theme
+function toggleSpooky() {
+  const spookyContainer = document.querySelector('.spooky-container');
+  if (!spookyContainer) 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');
+
+  if (videoPlayer || trailerPlayer || isDashboard || hasUserMenu) {
+    spookyContainer.style.display = 'none'; // hide spooky
+    if (!msgPrinted) {
+      console.log('Spooky Theme hidden');
+      msgPrinted = true;
+    }
+  } else {
+    spookyContainer.style.display = 'block'; // show spooky
+    if (msgPrinted) {
+      console.log('Spooky Theme visible');
+      msgPrinted = false;
+    }
+  }
+}
+
+// observe changes in the DOM
+const observer = new MutationObserver(toggleSpooky);
+observer.observe(document.body, {
+  childList: true,
+  subtree: true,
+  attributes: true
+});
+
+const spookyImages = [
+  "../Seasonals/Resources/halloween_images/ghost_20x20.png",
+  "../Seasonals/Resources/halloween_images/bat_20x20.png",
+  "../Seasonals/Resources/halloween_images/pumpkin_20x20.png",
+];
+
+// create spooky objects
+function createSpooky() {
+  const container = document.querySelector('.spooky-container') || document.createElement("div");
+
+  if (!document.querySelector('.spooky-container')) {
+    container.className = "spooky-container";
+    container.setAttribute("aria-hidden", "true");
+    document.body.appendChild(container);
+  }
+
+  // Base items per image
+  for (let i = 0; i < 4; i++) {
+    spookyImages.forEach(imageSrc => {
+      const spookyOuter = document.createElement("div");
+      spookyOuter.className = "spooky";
+      
+      const spookyInner = document.createElement("div");
+      spookyInner.className = "spooky-inner";
+      spookyInner.style.width = `${spookySize}px`;
+      if (!enableSpookySway) spookyInner.style.animationName = 'none';
+
+      const img = document.createElement("img");
+      img.src = imageSrc;
+      img.style.filter = spookyGlowSize > 0 ? `drop-shadow(0 0 ${spookyGlowSize}px rgba(255, 120, 0, 0.4))` : 'none';
+
+      // randomize fall and sway (shake) speeds like halloween.js
+      if (enableDifferentDuration) {
+        const randomAnimationDuration = Math.random() * 10 + 6; // fall duration (6s to 10s)
+        const randomAnimationDuration2 = Math.random() * 5 + 2; // shake duration (2s to 5s)
+        spookyOuter.style.animationDuration = `${randomAnimationDuration}s`;
+        spookyInner.style.animationDuration = `${randomAnimationDuration2}s`;
+      }
+
+      const randomLeft = Math.random() * 100;
+      const randomAnimationDelay = Math.random() * 10;
+      const randomAnimationDelay2 = Math.random() * 3;
+      
+      spookyOuter.style.left = `${randomLeft}%`;
+      spookyOuter.style.animationDelay = `${randomAnimationDelay}s`;
+      spookyInner.style.animationDelay = `${randomAnimationDelay2}s`;
+
+      spookyInner.appendChild(img);
+      spookyOuter.appendChild(spookyInner);
+      container.appendChild(spookyOuter);
+    });
+  }
+
+  // Add configured extra symbols
+  for (let i = 0; i < spookyCount; i++) {
+    const spookyOuter = document.createElement("div");
+    spookyOuter.className = "spooky";
+    
+    const spookyInner = document.createElement("div");
+    spookyInner.className = "spooky-inner";
+    spookyInner.style.width = `${spookySize}px`;
+    if (!enableSpookySway) spookyInner.style.animationName = 'none';
+
+    const imageSrc = spookyImages[Math.floor(Math.random() * spookyImages.length)];
+    const img = document.createElement("img");
+    img.src = imageSrc;
+    img.style.filter = spookyGlowSize > 0 ? `drop-shadow(0 0 ${spookyGlowSize}px rgba(255, 120, 0, 0.4))` : 'none';
+
+    const randomLeft = Math.random() * 100;
+    const randomAnimationDelay = Math.random() * 10;
+    const randomAnimationDelay2 = Math.random() * 3;
+
+    spookyOuter.style.left = `${randomLeft}%`;
+    spookyOuter.style.animationDelay = `${randomAnimationDelay}s`;
+    spookyInner.style.animationDelay = `${randomAnimationDelay2}s`;
+
+    if (enableDifferentDuration) {
+        const randomAnimationDuration = Math.random() * 10 + 6; // delay (6s to 10s)
+        const randomAnimationDuration2 = Math.random() * 5 + 2; // delay (2s to 5s)
+        spookyOuter.style.animationDuration = `${randomAnimationDuration}s`;
+        spookyInner.style.animationDuration = `${randomAnimationDuration2}s`;
+    }
+
+    spookyInner.appendChild(img);
+    spookyOuter.appendChild(spookyInner);
+    container.appendChild(spookyOuter);
+  }
+  
+  console.log('Spooky symbols added');
+}
+
+// initialize spooky
+function initializeSpooky() {
+  if (!spooky) return;
+  createSpooky();
+  toggleSpooky();
+}
+
+// initialize script
+initializeSpooky();