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A userscript that adds a floating, dockable playlist to YouTube with drag & drop functionality, autoplay, and cross-tab synchronization.
// ==UserScript==
// @name YouTube Temporary Playlist (Floating + Dockable + Drag&Drop + Autoplay)
// @name:de YouTube Temporary Playlist (Floating + Dockable + Drag&Drop + Autoplay)
// @namespace https://greasyfork.org/users/928242
// @version 1.2.0
// @description A userscript that adds a floating, dockable playlist to YouTube with drag & drop functionality, autoplay, and cross-tab synchronization.
// @description:de Ein Benutzerskript, das YouTube eine schwebende, andockbare Wiedergabeliste mit Drag & Drop-Funktionalität, Autoplay und tabübergreifender Synchronisierung hinzufügt.
// @author Kamikaze (https://github.com/Kamiikaze)
// @supportURL https://github.com/Kamiikaze/Tampermonkey/issues
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @match https://www.youtube.com/*
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_addValueChangeListener
// @license MIT
// ==/UserScript==
(function() {
'use strict';
/**
* Fix for TrustedHTML issues in some browsers
*/
if (window.trustedTypes && window.trustedTypes.createPolicy && !window.trustedTypes.defaultPolicy) {
window.trustedTypes.createPolicy('default', {
createHTML: string => string
});
}
/**
* Constants and Configuration
*/
const CONFIG = {
// Storage keys for persistence across tabs/sessions
STORAGE: {
PLAYLIST: "tempPlaylist",
AUTOPLAY: "playlistActive",
POSITION: "tempPlaylistPos",
DOCKED: "tempPlaylistDocked"
},
// UI settings
UI: {
DEFAULT_WIDTH: "400px",
COLLAPSED_WIDTH: "200px",
MAX_HEIGHT: "400px",
MIN_HEIGHT: "40px",
AUTO_HIDE_DELAY: 3000 // 3 seconds delay before auto-hiding
}
};
/**
* State variables
*/
let state = {
playlist: GM_getValue(CONFIG.STORAGE.PLAYLIST, []),
autoplayEnabled: GM_getValue(CONFIG.STORAGE.AUTOPLAY, false),
savedPos: GM_getValue(CONFIG.STORAGE.POSITION, { left: null, top: null }),
isDocked: GM_getValue(CONFIG.STORAGE.DOCKED, false),
collapsed: false,
isDragging: false,
currentDraggedVideoInfo: null,
dragOffset: { x: 0, y: 0 },
autoHideTimer: null,
videoPlaying: false
};
/**
* Creates and injects CSS styles for the playlist
*/
function injectStyles() {
const style = document.createElement('style');
style.innerHTML = `
.autoPlaylistOverlay {
position: fixed;
background: rgba(0,0,0,0.85);
color: white;
padding: 10px;
border-radius: 12px;
z-index: 9999;
font-size: 14px;
display: flex;
flex-direction: column;
gap: 5px;
transition: all 0.3s ease;
box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.autoPlaylistOverlay #playlist {
display: flex;
flex-direction: column;
flex: 1;
min-height: 100px;
border: 1px dashed white;
padding: 5px;
overflow-y: auto;
transition: max-height 0.5s ease;
padding-bottom: 50px;
scrollbar-width: thin;
scrollbar-color: white transparent;
}
.autoPlaylistOverlay #playlist::-webkit-scrollbar {
width: 6px;
}
.autoPlaylistOverlay #playlist::-webkit-scrollbar-thumb {
background: white;
border-radius: 10px;
}
.autoPlaylistOverlay button {
padding: 5px 10px;
background: rgba(255,255,255,0.1);
border: none;
border-radius: 8px;
color: white;
cursor: pointer;
transition: background 0.3s;
font-weight: bold;
}
.autoPlaylistOverlay button:hover {
background: rgba(255,255,255,0.3);
}
.autoPlaylistOverlay button[data-index] {
padding: 5px;
background: none;
border: none;
border-radius: 8px;
color: red;
font-size: 16px;
cursor: pointer;
transition: background 0.3s;
}
.autoPlaylistOverlay button[data-index]:hover {
background: rgba(255, 0, 0, 0.2);
}
.playlist-item {
display: flex;
align-items: center;
gap: 10px;
padding: 8px;
border-bottom: 1px solid rgba(255,255,255,0.2);
background: rgba(255,255,255,0.05);
transition: background 0.2s;
cursor: pointer;
}
.playlist-item:hover {
background: rgba(255,255,255,0.1);
}
`;
document.head.appendChild(style);
}
/**
* Creates the main floating overlay interface
* @returns {Object} References to DOM elements
*/
function createInterface() {
const overlay = document.createElement('div');
overlay.className = "autoPlaylistOverlay";
overlay.innerHTML = `
<div id="header" style="display:flex; justify-content:space-between; align-items:center; cursor:move;">
<h3 id="overlayTitle" style="margin:0; font-size:16px;">AutoPlayList</h3>
<button id="collapseButton" style="background:none; border:none; color:white; font-size:18px; cursor:pointer;">_</button>
</div>
<div id="playlist">Drag Videos Here</div>
<div id="controls" style="display:flex; flex-wrap:wrap; justify-content:center; gap:5px;">
<button id="addCurrentVideo" title="Add current video to playlist">Current Video</button>
<button id="toggleAutoplay" title="Enables autplay for AutoPlayList after video end">Enable Autoplay</button>
<button id="clearPlaylist" title="Delete all items in playlist">Clear Playlist</button>
<button id="dockToggle" title="Toggle between docked and moveable overlay">Dock</button>
</div>
`;
document.body.appendChild(overlay);
return {
overlay,
playlistDiv: overlay.querySelector("#playlist"),
addCurrentButton: overlay.querySelector("#addCurrentVideo"),
toggleButton: overlay.querySelector("#toggleAutoplay"),
clearButton: overlay.querySelector("#clearPlaylist"),
dockButton: overlay.querySelector("#dockToggle"),
collapseButton: overlay.querySelector("#collapseButton"),
overlayTitle: overlay.querySelector("#overlayTitle"),
controlsDiv: overlay.querySelector("#controls"),
header: overlay.querySelector("#header")
};
}
/**
* Storage/Persistence methods
*/
const storage = {
savePlaylist: () => GM_setValue(CONFIG.STORAGE.PLAYLIST, state.playlist),
saveAutoplayState: () => GM_setValue(CONFIG.STORAGE.AUTOPLAY, state.autoplayEnabled),
savePosition: (left, top) => GM_setValue(CONFIG.STORAGE.POSITION, { left, top }),
saveDockState: () => GM_setValue(CONFIG.STORAGE.DOCKED, state.isDocked)
};
/**
* Updates the playlist container title with current count
* @param {Object} elements - DOM elements references
*/
function updateTitle(elements) {
elements.overlayTitle.textContent = `AutoPlayList (${state.playlist.length})`;
}
/**
* Applies docked or floating position based on current state
* @param {Object} elements - DOM elements references
*/
function applyDockState(elements) {
const { overlay, dockButton } = elements;
const { isDocked, collapsed } = state;
if (isDocked) {
overlay.style.position = 'fixed';
overlay.style.top = 'unset';
overlay.style.left = 'unset';
overlay.style.bottom = '0';
overlay.style.right = '10px';
overlay.style.borderRadius = '12px 12px 0 0';
overlay.style.width = collapsed ? CONFIG.UI.COLLAPSED_WIDTH : CONFIG.UI.DEFAULT_WIDTH;
overlay.style.maxHeight = collapsed ? CONFIG.UI.MIN_HEIGHT : CONFIG.UI.MAX_HEIGHT;
overlay.style.height = 'auto';
overlay.style.padding = collapsed ? '5px 10px' : '10px';
dockButton.textContent = 'Undock';
} else {
overlay.style.position = 'fixed';
overlay.style.top = 'unset';
overlay.style.left = 'unset';
overlay.style.bottom = '20px';
overlay.style.right = '20px';
overlay.style.borderRadius = '12px';
overlay.style.width = collapsed ? CONFIG.UI.COLLAPSED_WIDTH : CONFIG.UI.DEFAULT_WIDTH;
overlay.style.maxHeight = collapsed ? CONFIG.UI.MIN_HEIGHT : CONFIG.UI.MAX_HEIGHT;
overlay.style.height = 'auto';
overlay.style.padding = collapsed ? '5px 10px' : '10px';
dockButton.textContent = 'Dock';
}
}
/**
* Ensures the overlay stays within window boundaries
* @param {Object} pos - Position coordinates
* @param {Object} elements - DOM elements references
* @returns {Object} Adjusted position coordinates
*/
function clampPosition(pos, elements) {
const overlayWidth = elements.overlay.offsetWidth;
const overlayHeight = elements.overlay.offsetHeight;
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
let left = pos.left;
let top = pos.top;
if (left < 0) left = 0;
if (top < 0) top = 0;
if (left + overlayWidth > windowWidth) left = windowWidth - overlayWidth-50;
if (top + overlayHeight > windowHeight) top = windowHeight - overlayHeight-50;
return { left, top };
}
/**
* Renders the playlist items based on current state
* @param {Object} elements - DOM elements references
*/
function renderPlaylist(elements) {
const { playlistDiv } = elements;
updateTitle(elements);
playlistDiv.innerHTML = '';
if (state.playlist.length === 0) {
playlistDiv.textContent = 'Drag Videos Here';
return;
}
state.playlist.forEach((video, index) => {
const thumbnailUrl = `https://i.ytimg.com/vi/${video.id}/hqdefault.jpg`;
const item = document.createElement('div');
item.classList.add('playlist-item');
item.draggable = true;
item.dataset.index = index;
item.innerHTML = `
<div style="font-weight:bold; width:20px; text-align:center;">${index + 1}</div>
<img src="${thumbnailUrl}" style="width: 80px; height: 45px; object-fit: cover; border-radius:4px;">
<div style="flex:1; overflow:hidden;">
<div class="title" style="
font-size:14px;
font-weight:bold;
overflow:hidden;
display:-webkit-box;
-webkit-line-clamp:2;
-webkit-box-orient:vertical;
text-overflow: ellipsis;
">${video.title}</div>
<div style="font-size:12px; color:lightgray;">${video.channel}</div>
</div>
<button data-index="${index}" style="color:red;">❌</button>
`;
setupPlaylistItemEvents(item, index, elements);
playlistDiv.appendChild(item);
});
}
/**
* Sets up event handlers for playlist items
* @param {HTMLElement} item - The playlist item element
* @param {number} index - Index of the item in the playlist
* @param {Object} elements - DOM elements references
*/
function setupPlaylistItemEvents(item, index, elements) {
let isItemDragging = false;
// Drag & drop reordering
item.addEventListener('dragstart', (e) => {
isItemDragging = true;
e.dataTransfer.setData('text/plain', index);
});
item.addEventListener('dragend', () => {
isItemDragging = false;
});
// Play video on click
item.addEventListener('click', (e) => {
if (isItemDragging || e.target.tagName === 'BUTTON') return;
window.location.href = state.playlist[index].url;
});
// Title expansion on hover
item.addEventListener('mouseenter', () => {
const title = item.querySelector('.title');
title.style.overflow = 'visible';
title.style.webkitLineClamp = 'unset';
});
item.addEventListener('mouseleave', () => {
const title = item.querySelector('.title');
title.style.overflow = 'hidden';
title.style.webkitLineClamp = '2';
});
// Item reordering via drag & drop
item.addEventListener('dragover', (e) => {
e.preventDefault();
item.style.background = 'rgba(255,255,255,0.1)';
});
item.addEventListener('dragleave', () => {
item.style.background = 'rgba(255,255,255,0.05)';
});
item.addEventListener('drop', (e) => {
e.preventDefault();
item.style.background = 'rgba(255,255,255,0.05)';
const fromIndex = parseInt(e.dataTransfer.getData('text/plain'), 10);
const toIndex = parseInt(item.dataset.index, 10);
if (fromIndex !== toIndex) {
const movedItem = state.playlist.splice(fromIndex, 1)[0];
state.playlist.splice(toIndex, 0, movedItem);
storage.savePlaylist();
renderPlaylist(elements);
}
});
}
/**
* Sets up the overlay drag functionality with improved performance
* @param {Object} elements - DOM elements references
*/
function setupOverlayDrag(elements) {
const { header, overlay } = elements;
let rafId = null;
// Use requestAnimationFrame for smooth rendering
function updatePosition(x, y) {
if (rafId) {
cancelAnimationFrame(rafId);
}
rafId = requestAnimationFrame(() => {
const left = x - state.dragOffset.x;
const top = y - state.dragOffset.y;
overlay.style.left = `${left}px`;
overlay.style.top = `${top}px`;
overlay.style.bottom = 'unset';
overlay.style.right = 'unset';
rafId = null;
});
}
header.addEventListener('mousedown', (e) => {
if (state.isDocked || e.target.id === 'collapseButton') return;
state.isDragging = true;
// Calculate offset relative to the header
const rect = overlay.getBoundingClientRect();
state.dragOffset.x = e.clientX - rect.left;
state.dragOffset.y = e.clientY - rect.top;
// Make sure we're using fixed positioning
overlay.style.position = 'fixed';
overlay.style.bottom = 'unset';
overlay.style.right = 'unset';
document.body.style.userSelect = 'none';
});
document.addEventListener('mousemove', (e) => {
if (state.isDocked || !state.isDragging) return;
updatePosition(e.clientX, e.clientY);
});
document.addEventListener('mouseup', () => {
if (!state.isDragging) return;
state.isDragging = false;
document.body.style.userSelect = '';
if (!state.isDocked) {
// Apply clamping to ensure we stay within window boundaries
const left = parseFloat(overlay.style.left) || 0;
const top = parseFloat(overlay.style.top) || 0;
const finalPosition = clampPosition({
left: left,
top: top
}, elements);
// Apply the clamped position
overlay.style.left = `${finalPosition.left}px`;
overlay.style.top = `${finalPosition.top}px`;
storage.savePosition(finalPosition.left, finalPosition.top);
}
});
}
/**
* Sets up behavior for docking the overlay
* @param {Object} elements - DOM elements references
*/
function setupDockButton(elements) {
const { dockButton } = elements;
dockButton.addEventListener('click', () => {
state.isDocked = !state.isDocked;
storage.saveDockState();
applyDockState(elements);
});
}
/**
* Sets up collapse/expand behavior
* @param {Object} elements - DOM elements references
*/
function setupCollapseButton(elements) {
const { collapseButton, playlistDiv, controlsDiv, overlay } = elements;
collapseButton.addEventListener('click', (e) => {
e.stopPropagation();
toggleCollapse(elements);
});
}
/**
* Toggles the collapsed state of the playlist
* @param {Object} elements - DOM elements references
* @param {boolean} [forceCollapse] - Force a specific collapse state
*/
function toggleCollapse(elements, forceCollapse = null) {
const { playlistDiv, controlsDiv, overlay } = elements;
if (forceCollapse !== null) {
state.collapsed = forceCollapse;
} else {
state.collapsed = !state.collapsed;
}
if (state.collapsed) {
playlistDiv.style.maxHeight = '0';
playlistDiv.style.display = 'none';
controlsDiv.style.display = 'none';
overlay.style.width = CONFIG.UI.COLLAPSED_WIDTH;
overlay.style.padding = '5px 10px';
if (state.isDocked) {
overlay.style.bottom = '0';
overlay.style.right = '10px';
overlay.style.borderRadius = '12px 12px 0 0';
}
} else {
playlistDiv.style.maxHeight = '300px';
playlistDiv.style.display = 'flex';
controlsDiv.style.display = 'flex';
overlay.style.width = CONFIG.UI.DEFAULT_WIDTH;
overlay.style.padding = '10px';
if (state.isDocked) {
overlay.style.bottom = '0';
overlay.style.right = '10px';
overlay.style.borderRadius = '12px 12px 0 0';
}
}
}
/**
* Sets up drag & drop to add videos to playlist
* @param {Object} elements - DOM elements references
*/
function setupPlaylistDrop(elements) {
const { playlistDiv } = elements;
// Handle dragover events
playlistDiv.addEventListener('dragover', (e) => {
e.preventDefault();
playlistDiv.style.background = 'rgba(0, 150, 255, 0.2)';
playlistDiv.style.border = '2px dashed #00f';
});
// Reset styles when drag leaves
playlistDiv.addEventListener('dragleave', () => {
playlistDiv.style.background = '';
playlistDiv.style.border = '1px dashed white';
});
// Process dropped items
playlistDiv.addEventListener('drop', (e) => {
e.preventDefault();
playlistDiv.style.background = '';
playlistDiv.style.border = '1px dashed white';
if (state.currentDraggedVideoInfo) {
state.playlist.push(state.currentDraggedVideoInfo);
storage.savePlaylist();
renderPlaylist(elements);
state.currentDraggedVideoInfo = null;
} else {
const data = e.dataTransfer.getData('text/plain');
if (data && data.includes('youtube.com/watch')) {
const videoId = (new URL(data)).searchParams.get('v') || '';
state.playlist.push({
url: data,
id: videoId,
title: "Unknown Title",
channel: "Unknown Channel"
});
storage.savePlaylist();
renderPlaylist(elements);
}
}
});
}
/**
* Sets up delete functionality for playlist items
* @param {Object} elements - DOM elements references
*/
function setupPlaylistDelete(elements) {
const { playlistDiv } = elements;
playlistDiv.addEventListener('click', (e) => {
if (e.target.tagName === 'BUTTON' && e.target.hasAttribute('data-index')) {
const idx = parseInt(e.target.getAttribute('data-index'), 10);
if (!isNaN(idx)) {
state.playlist.splice(idx, 1);
storage.savePlaylist();
renderPlaylist(elements);
}
e.stopPropagation();
}
});
}
/**
* Extracts current video information from the YouTube page
* @returns {Object|null} Video information or null if not on a video page
*/
function getCurrentVideoInfo() {
// Check if we're on a video page
if (!window.location.pathname.includes('/watch')) {
return null;
}
try {
// Get video ID from URL
const videoId = new URL(window.location.href).searchParams.get('v');
if (!videoId) return null;
// Get video title
const titleElement = document.querySelector('h1.ytd-watch-metadata');
const title = titleElement ? titleElement.textContent.trim() : 'Unknown Title';
// Get channel name
const channelElement = document.querySelector('ytd-channel-name#channel-name a, #owner-name a');
const channel = channelElement ? channelElement.textContent.trim() : 'Unknown Channel';
return {
url: window.location.href,
id: videoId,
title: title,
channel: channel
};
} catch (error) {
console.error("Error getting current video info:", error);
return null;
}
}
/**
* Adds current video button to the controls
* @param {Object} elements - DOM elements references
*/
function setupCurrentVideoButton(elements) {
const { addCurrentButton } = elements;
// Add icon for better visibility
addCurrentButton.innerHTML = `<span style="font-size:14px;">➕</span> Current Video`;
// Setup click handler
addCurrentButton.addEventListener('click', () => {
const videoInfo = getCurrentVideoInfo();
if (videoInfo) {
// Check if video is already in playlist
const existingIndex = state.playlist.findIndex(v => v.id === videoInfo.id);
if (existingIndex >= 0) {
// Video already exists - provide visual feedback
addCurrentButton.textContent = 'Already Added';
addCurrentButton.style.background = 'rgba(255,255,255,0.2)';
// Reset button after a short delay
setTimeout(() => {
addCurrentButton.innerHTML = `<span style="font-size:14px;">➕</span> Current Video`;
addCurrentButton.style.background = 'rgba(255,255,255,0.1)';
}, 1500);
return;
}
// Add to playlist
state.playlist.push(videoInfo);
storage.savePlaylist();
renderPlaylist(elements);
// Provide visual feedback
addCurrentButton.textContent = 'Added! ✓';
addCurrentButton.style.background = 'rgba(0,255,0,0.2)';
// Reset button after a short delay
setTimeout(() => {
addCurrentButton.innerHTML = `<span style="font-size:14px;">➕</span> Current Video`;
addCurrentButton.style.background = 'rgba(255,255,255,0.1)';
}, 1500);
} else {
// Not on a video page or couldn't get info
addCurrentButton.textContent = 'No Video Found';
addCurrentButton.style.background = 'rgba(255,0,0,0.2)';
// Reset button after a short delay
setTimeout(() => {
addCurrentButton.innerHTML = `<span style="font-size:14px;">➕</span> Current Video`;
addCurrentButton.style.background = 'rgba(255,255,255,0.1)';
}, 1500);
}
});
// Update button visibility based on page type
function updateButtonVisibility() {
const isVideoPage = window.location.pathname.includes('/watch');
addCurrentButton.style.opacity = isVideoPage ? '1' : '0.5';
}
// Initial visibility update
updateButtonVisibility();
// Listen for navigation changes
const observer = new MutationObserver(() => {
updateButtonVisibility();
});
observer.observe(document.querySelector('head > title'), { subtree: true, characterData: true, childList: true });
}
/**
* Sets up autoplay toggle functionality
* @param {Object} elements - DOM elements references
*/
function setupAutoplayToggle(elements) {
const { toggleButton } = elements;
toggleButton.addEventListener('click', () => {
state.autoplayEnabled = !state.autoplayEnabled;
toggleButton.textContent = state.autoplayEnabled ? "Disable Autoplay" : "Enable Autoplay";
storage.saveAutoplayState();
});
}
/**
* Sets up playlist clear button
* @param {Object} elements - DOM elements references
*/
function setupClearButton(elements) {
const { clearButton } = elements;
clearButton.addEventListener('click', () => {
state.playlist = [];
storage.savePlaylist();
renderPlaylist(elements);
});
}
/**
* Sets up autoplay functionality for videos
*/
function setupVideoAutoplay() {
const observer = new MutationObserver(() => {
const video = document.querySelector('video');
if (!video) return;
video.addEventListener('ended', () => {
if (!state.autoplayEnabled || state.playlist.length === 0) return;
const currentUrl = location.href;
const nextIndex = state.playlist.findIndex(v => currentUrl.includes(v.id));
if (nextIndex >= 0 && nextIndex < state.playlist.length - 1) {
// Add a small delay before navigating to next video
setTimeout(() => {
window.location.href = state.playlist[nextIndex + 1].url;
}, 300);
} else {
state.autoplayEnabled = false;
storage.saveAutoplayState();
document.querySelector("#toggleAutoplay").textContent = "Enable Autoplay";
}
}, { once: true });
});
observer.observe(document.body, { childList: true, subtree: true });
}
/**
* Setup auto-hide functionality when video is playing
* @param {Object} elements - DOM elements references
*/
function setupAutoHideOnPlay(elements) {
const { overlay } = elements;
// Video play/pause state detection
const observeVideo = () => {
const observer = new MutationObserver(() => {
const video = document.querySelector('video');
if (!video) return;
// Setup play/pause event listeners if not already attached
if (!video.dataset.playlistEventsBound) {
video.dataset.playlistEventsBound = "true";
// When video plays, dock and collapse after delay
video.addEventListener('play', () => {
state.videoPlaying = true;
// Clear any existing timer
if (state.autoHideTimer) {
clearTimeout(state.autoHideTimer);
}
// Set timer to hide after delay
state.autoHideTimer = setTimeout(() => {
if (!state.isDocked) {
state.isDocked = true;
storage.saveDockState();
applyDockState(elements);
}
if (!state.collapsed) {
toggleCollapse(elements, true); // Force collapse
}
}, CONFIG.UI.AUTO_HIDE_DELAY);
});
// When video pauses, show the playlist again
video.addEventListener('pause', () => {
state.videoPlaying = false;
// Clear any hide timer
if (state.autoHideTimer) {
clearTimeout(state.autoHideTimer);
state.autoHideTimer = null;
}
// Only expand if it was auto-collapsed (while playing)
if (state.collapsed && !state.isDragging) {
toggleCollapse(elements, false); // Force expand
}
});
}
});
observer.observe(document.body, { childList: true, subtree: true });
};
// Start observing for video elements
observeVideo();
// Also handle navigation events to reattach listeners
window.addEventListener('yt-navigate-finish', () => {
// Reset bound state so we can reattach listeners
const video = document.querySelector('video');
if (video) {
delete video.dataset.playlistEventsBound;
}
observeVideo();
});
}
/**
* Sets up handling for YouTube video dragging
*/
function setupYouTubeDragHandling() {
document.addEventListener('dragstart', (e) => {
const videoEl = e.target.closest('ytd-video-renderer, ytd-grid-video-renderer, ytd-compact-video-renderer, ytd-playlist-video-renderer');
if (videoEl) {
const anchor = videoEl.querySelector('a[href*="/watch?v="]');
if (!anchor) return;
const videoUrl = anchor.href;
const videoId = (new URL(videoUrl)).searchParams.get('v') || '';
const titleEl = videoEl.querySelector('#video-title, yt-formatted-string#video-title');
const title = titleEl ? titleEl.textContent.trim() : 'Unknown Title';
const channelEl = videoEl.querySelector('ytd-channel-name a, .ytd-channel-name #text');
const channel = channelEl ? channelEl.textContent.trim() : 'Unknown Channel';
state.currentDraggedVideoInfo = {
url: videoUrl,
id: videoId,
title: title,
channel: channel
};
}
});
}
/**
* Sets up synchronization across tabs
* @param {Object} elements - DOM elements references
*/
function setupCrossBrowserSync(elements) {
GM_addValueChangeListener(CONFIG.STORAGE.PLAYLIST, (_, __, newValue) => {
state.playlist = newValue;
renderPlaylist(elements);
});
GM_addValueChangeListener(CONFIG.STORAGE.AUTOPLAY, (_, __, newValue) => {
state.autoplayEnabled = newValue;
elements.toggleButton.textContent = state.autoplayEnabled ? "Disable Autoplay" : "Enable Autoplay";
});
GM_addValueChangeListener(CONFIG.STORAGE.POSITION, (_, __, newValue) => {
if (state.isDocked) return;
const clamped = clampPosition(newValue, elements);
elements.overlay.style.left = `${clamped.left}px`;
elements.overlay.style.top = `${clamped.top}px`;
});
GM_addValueChangeListener(CONFIG.STORAGE.DOCKED, (_, __, newValue) => {
state.isDocked = newValue;
applyDockState(elements);
});
}
/**
* Handles window resize events
* @param {Object} elements - DOM elements references
*/
function setupWindowEvents(elements) {
const { overlay } = elements;
// Handle window resize
window.addEventListener('resize', () => {
if (state.isDocked) return;
const clamped = clampPosition({ left: overlay.offsetLeft, top: overlay.offsetTop }, elements);
overlay.style.left = `${clamped.left}px`;
overlay.style.top = `${clamped.top}px`;
storage.savePosition(clamped.left, clamped.top);
});
// Hide overlay during fullscreen video
document.addEventListener('fullscreenchange', () => {
const isFullscreen = !!document.fullscreenElement;
overlay.style.display = isFullscreen ? 'none' : 'flex';
});
}
/**
* Restores the overlay position from saved state
* @param {Object} elements - DOM elements references
*/
function restorePosition(elements) {
const { overlay } = elements;
const { savedPos } = state;
if (!state.isDocked && savedPos.left !== null && savedPos.top !== null) {
const clamped = clampPosition(savedPos, elements);
overlay.style.left = `${clamped.left}px`;
overlay.style.top = `${clamped.top}px`;
overlay.style.bottom = 'unset';
overlay.style.right = 'unset';
}
}
/**
* Main initialization function
*/
function init() {
// Setup UI
injectStyles();
const elements = createInterface();
// Apply initial state
applyDockState(elements);
renderPlaylist(elements);
restorePosition(elements);
// Set initial autoplay button text
elements.toggleButton.textContent = state.autoplayEnabled ? "Disable Autoplay" : "Enable Autoplay";
// Setup event handlers
setupOverlayDrag(elements);
setupCollapseButton(elements);
setupPlaylistDrop(elements);
setupPlaylistDelete(elements);
setupCurrentVideoButton(elements);
setupAutoplayToggle(elements);
setupClearButton(elements);
setupDockButton(elements);
setupVideoAutoplay();
setupAutoHideOnPlay(elements);
setupYouTubeDragHandling();
setupCrossBrowserSync(elements);
setupWindowEvents(elements);
}
// Start everything
init();
})();