mirror of
https://github.com/ranaldsgift/KefinTweaks.git
synced 2026-11-05 07:42:47 +01:00
652 lines
25 KiB
JavaScript
652 lines
25 KiB
JavaScript
// KefinTweaks Utilities
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// Provides standardized functionality for hooking into Emby.Page.onViewShow
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// while maintaining original Jellyfin functionality
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(function() {
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'use strict';
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// Common logging function
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const LOG = (...args) => console.log('[KefinTweaks Utils]', ...args);
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const WARN = (...args) => console.warn('[KefinTweaks Utils]', ...args);
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const ERR = (...args) => console.error('[KefinTweaks Utils]', ...args);
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LOG('Initializing');
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// Store the original onViewShow function
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let originalOnViewShow = null;
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const state = {
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previousHash: null,
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}
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// Initialize the utils by hooking into Emby.Page.onViewShow
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function initialize() {
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// Store the original onViewShow if it exists
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if (window.Emby && window.Emby.Page && window.Emby.Page.onViewShow) {
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originalOnViewShow = window.Emby.Page.onViewShow;
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LOG('Stored original Emby.Page.onViewShow');
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}
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// Override onViewShow to maintain original functionality
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if (window.Emby && window.Emby.Page) {
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window.Emby.Page.onViewShow = function (...args) {
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// Call original handler if it exists
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if (originalOnViewShow) {
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try {
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originalOnViewShow.apply(this, ...args);
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} catch (err) {
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ERR('Error in original onViewShow handler:', err);
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}
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}
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const view = getCurrentView() ?? args[0];
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// Call our registered handlers
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notifyHandlers(view, args[1], window.location.hash, state.previousHash);
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state.previousHash = window.location.hash;
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};
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LOG('Hooked into Emby.Page.onViewShow');
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} else {
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WARN('Emby.Page.onViewShow not found - utils may not work correctly');
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}
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}
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// Array to store registered handlers
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const handlers = [];
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// Cache item per page view to avoid multiple fetches
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let cachedItem = null;
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let cachedItemId = null;
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let fetchInProgress = null; // Track the promise of an in-progress fetch
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let fetchItemId = null; // Track which item ID is currently being fetched
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/**
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* Register a callback to be called when page view changes
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* @param {Function} callback - Function to call when page view changes
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* @param {Object} options - Options for the handler
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*/
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function onViewPage(callback, options = {}) {
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if (typeof callback !== 'function') {
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ERR('Callback must be a function');
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return;
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}
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const handlerConfig = {
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callback,
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options: {
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pages: [], // Specific pages to watch (empty = all pages)
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...options
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}
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};
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handlers.push(handlerConfig);
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LOG(`Registered onViewPage handler (total: ${handlers.length})`);
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// Test if this is causing issues
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const currentView = getCurrentView();
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if (currentView && shouldCallHandler(handlerConfig, currentView)) {
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try {
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// Pass the promise (not awaited) for consistency with notifyHandlers
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const itemPromise = getCurrentItem();
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callback(currentView, document, window.location.hash, itemPromise);
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} catch (err) {
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ERR('Error in immediate handler call:', err);
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}
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}
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// Return a function to unregister this handler
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return () => {
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const index = handlers.indexOf(handlerConfig);
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if (index !== -1) {
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handlers.splice(index, 1);
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LOG(`Unregistered onViewPage handler (remaining: ${handlers.length})`);
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}
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};
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}
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/**
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* Get item ID from URL parameters
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* Works with both hash-based routing and traditional query strings
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* @returns {string|null} Item ID or null if not found
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*/
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function getItemIdFromUrl() {
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try {
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const match = window.location.href.match(/[\?&]id=([^&]+)/);
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return match ? match[1] : null;
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} catch {
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return null;
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}
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}
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/**
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* Fetch item by ID
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* @param {string} itemId - The item ID
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* @returns {Promise<Object|null>} The item object or null if not found
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*/
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async function fetchItemById(itemId) {
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if (!itemId || !window.ApiClient || !window.ApiClient.getItem || !window.ApiClient.getCurrentUserId || !window.ApiClient._loggedIn) {
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return null;
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}
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try {
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const userId = window.ApiClient.getCurrentUserId();
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const item = await window.ApiClient.getItem(userId, itemId);
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return item;
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} catch (error) {
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WARN('Error fetching item:', error);
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return null;
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}
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}
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/**
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* Get current item from URL, using cache if available
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* @returns {Promise<Object|null>} The item object or null if not found
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*/
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async function getCurrentItem() {
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const itemId = getItemIdFromUrl();
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// If no item ID, return null
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if (!itemId) {
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return null;
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}
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// If we have a cached item for this ID, return it
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if (cachedItem && cachedItemId === itemId) {
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return cachedItem;
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}
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// If a fetch is already in progress for this item, wait for it
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if (fetchInProgress && fetchItemId === itemId) {
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LOG('Fetch already in progress for this item, waiting for it to complete');
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return await fetchInProgress;
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}
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// Start a new fetch and store the promise
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fetchItemId = itemId;
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fetchInProgress = (async () => {
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try {
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LOG('Fetching item:', itemId);
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const item = await fetchItemById(itemId);
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cachedItem = item;
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cachedItemId = itemId;
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return item;
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} finally {
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// Clear the in-progress flag when done (only if still for this item)
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if (fetchItemId === itemId) {
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fetchInProgress = null;
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fetchItemId = null;
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}
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}
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})();
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LOG('Fetch in progress for item:', itemId);
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return await fetchInProgress;
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}
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/**
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* Notify all registered handlers of a view change
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* @param {string} view - The view name
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* @param {Element} element - The view element
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*/
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function notifyHandlers(view, element, hash, previousHash) {
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// Clear cache when view changes to ensure fresh data
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const currentItemId = getItemIdFromUrl();
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if (cachedItemId !== currentItemId) {
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LOG('Clearing cache for new item:', currentItemId);
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cachedItem = null;
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cachedItemId = null;
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fetchInProgress = null; // Clear any in-progress fetch for previous item
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fetchItemId = null;
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}
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// Get the item promise once - will be shared across all handlers
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// The promise is cached/fetched by getCurrentItem(), ensuring only one API call
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const itemPromise = getCurrentItem();
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handlers.forEach((config) => {
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if (shouldCallHandler(config, view)) {
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try {
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// Pass the promise as third parameter - handlers can await if needed
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config.callback(view, element, hash, itemPromise, previousHash);
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} catch (err) {
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ERR('Error in onViewPage handler:', err);
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}
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}
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});
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}
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/**
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* Check if a handler should be called for a given view
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* @param {Object} config - Handler configuration
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* @param {string} view - The view name
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* @returns {boolean} Whether the handler should be called
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*/
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function shouldCallHandler(config, view) {
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const { pages, triggerOnSameHash = true } = config.options;
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if (state.previousHash === window.location.hash && !triggerOnSameHash) {
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return false;
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}
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// If no specific pages are specified, call for all pages
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if (pages.length === 0) return true;
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// Get current URL hash to determine actual page
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const currentUrl = window.location.hash;
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// Check if the current URL matches any of the specified pages
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return pages.some(page => {
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if (typeof page === 'string') {
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// Check if URL hash contains the page pattern
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return currentUrl.includes(`/${page}.html`) || currentUrl.includes(`/${page}`) || currentUrl.includes(page);
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} else if (page instanceof RegExp) {
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return page.test(currentUrl);
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}
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return false;
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});
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}
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/**
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* Get the current view name
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* @returns {string|null} Current view name or null if not available
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*/
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function getCurrentView() {
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const hash = window.location.hash;
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if (hash) {
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// Extract page name from hash - match part after #/ and before ? or /
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// This handles both .html pages (old) and pages without .html (Jellyfin 10.11+)
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const pageMatch = hash.match(/#\/([^\/\?]+)/);
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if (pageMatch) {
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return pageMatch[1];
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}
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}
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return null;
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}
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/**
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* Get the number of registered handlers
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* @returns {number} Number of registered handlers
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*/
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function getHandlerCount() {
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return handlers.length;
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}
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/**
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* Clear all handlers
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*/
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function clearHandlers() {
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handlers.length = 0;
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LOG('Cleared all onViewPage handlers');
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}
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// Initialize when DOM is ready
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', initialize);
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} else {
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initialize();
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}
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/**
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* Add a custom menu link to the custom menu options
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* @param {string} name - Display name for the menu item
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* @param {string} icon - Material icon name
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* @param {string} url - URL to navigate to
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* @param {boolean} openInNewTab - Whether to open in new tab (default: false)
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* @param {string} containerSelector - CSS selector for the container to add the link to (default: '.customMenuOptions')
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* @returns {Promise<boolean>} - True if successfully added, false otherwise
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*/
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function addCustomMenuLink(name, icon, url, openInNewTab = false, containerSelector = '.customMenuOptions') {
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return new Promise((resolve) => {
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// Check if menu container already exists
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const existingContainer = document.querySelector(containerSelector);
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if (existingContainer) {
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const success = addLinkToContainer(existingContainer, name, icon, url, openInNewTab);
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resolve(success);
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return;
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}
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LOG(`Custom menu container not found, waiting for it to appear for link: ${name}`);
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// Use MutationObserver to watch for the menu container
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const observer = new MutationObserver((mutations) => {
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for (const mutation of mutations) {
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mutation.addedNodes.forEach(node => {
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if (node.nodeType === Node.ELEMENT_NODE) {
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// Check if the added node is the menu or contains it
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if (node.matches?.(containerSelector) || node.querySelector?.(containerSelector)) {
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const container = node.matches?.(containerSelector) ? node : node.querySelector(containerSelector);
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LOG(`Custom menu container detected, adding link: ${name}`);
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observer.disconnect();
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const success = addLinkToContainer(container, name, icon, url, openInNewTab);
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resolve(success);
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return;
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}
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}
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});
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}
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});
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observer.observe(document.body, {
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childList: true,
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subtree: true
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});
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});
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}
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/**
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* Waits for user to be logged in
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* @param {number} maxWaitMs - Maximum time to wait in milliseconds (default: 10000 = 10 seconds)
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* @param {number} checkInterval - Interval between checks in milliseconds (default: 500)
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* @returns {Promise<boolean>} - True if logged in, false if timeout
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*/
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async function waitForLogin(maxWaitMs = 10000, checkInterval = 500) {
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const startTime = Date.now();
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while (Date.now() - startTime < maxWaitMs) {
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if (window.ApiClient &&
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window.ApiClient._loggedIn &&
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window.ApiClient.accessToken &&
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window.ApiClient.serverAddress) {
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try {
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const token = window.ApiClient.accessToken();
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if (token) {
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LOG('User is logged in');
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return true;
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}
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} catch (e) {
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// Token not available yet
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}
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}
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await new Promise(resolve => setTimeout(resolve, checkInterval));
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}
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WARN('Timeout waiting for user login');
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return false;
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}
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/**
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* Saves the current KefinTweaksConfig back to JS Injector plugin
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* @param {Object} config - Optional config object to save. If not provided, uses window.KefinTweaksConfig
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* @param {Object} options - Options for saving
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* @param {boolean} options.waitForLogin - Whether to wait for login if not logged in (default: true)
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* @param {number} options.loginWaitTime - Maximum time to wait for login in ms (default: 10000)
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* @returns {Promise<boolean>} - Success status
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*/
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async function saveConfigToJavaScriptInjector(config = null, options = {}) {
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try {
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const { waitForLogin: shouldWaitForLogin = true, loginWaitTime = 10000 } = options;
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// Check if ApiClient is available
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if (!window.ApiClient) {
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if (shouldWaitForLogin) {
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LOG('ApiClient not available, waiting for initialization...');
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const loggedIn = await waitForLogin(loginWaitTime);
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if (!loggedIn) {
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WARN('ApiClient not available after waiting, cannot save config');
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return false;
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}
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} else {
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throw new Error('ApiClient not available');
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}
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}
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// Check if user is logged in
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const isLoggedIn = window.ApiClient._loggedIn &&
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window.ApiClient.accessToken &&
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window.ApiClient.serverAddress;
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if (!isLoggedIn) {
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if (shouldWaitForLogin) {
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LOG('User not logged in, waiting for login...');
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const loggedIn = await waitForLogin(loginWaitTime);
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if (!loggedIn) {
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WARN('User not logged in after waiting, cannot save config');
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return false;
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}
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} else {
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throw new Error('User not logged in');
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}
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}
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// Use provided config or fall back to window.KefinTweaksConfig
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const configToSave = config || window.KefinTweaksConfig;
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if (!configToSave) {
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throw new Error('No config provided and window.KefinTweaksConfig is not available');
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}
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// Find JavaScript Injector plugin
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const server = window.ApiClient.serverAddress();
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const token = window.ApiClient.accessToken();
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if (!server || !token) {
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throw new Error('Server address or access token not available');
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}
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let pluginsResponse = await fetch(`${server}/Plugins`, {
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headers: { 'X-Emby-Token': token }
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});
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// Handle 401 Unauthorized - retry once after waiting if waitForLogin is enabled
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if (pluginsResponse.status === 401 && shouldWaitForLogin) {
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WARN('Received 401 Unauthorized, waiting for login and retrying...');
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const loggedIn = await waitForLogin(5000); // Wait up to 5 more seconds
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if (loggedIn) {
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// Retry with fresh token
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const freshToken = window.ApiClient.accessToken();
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pluginsResponse = await fetch(`${server}/Plugins`, {
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headers: { 'X-Emby-Token': freshToken }
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});
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}
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}
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if (!pluginsResponse.ok) {
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if (pluginsResponse.status === 401) {
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throw new Error('Unauthorized - user may not be logged in or session expired');
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}
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throw new Error(`Failed to get plugins: ${pluginsResponse.status} ${pluginsResponse.statusText}`);
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}
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const pluginsData = await pluginsResponse.json();
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const pluginsList = Array.isArray(pluginsData) ? pluginsData : (pluginsData.Items || []);
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const plugin = pluginsList.find(p => p.Name === 'JavaScript Injector' || p.Name === 'JS Injector');
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if (!plugin) {
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WARN('JavaScript Injector plugin not found, cannot save config');
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return false;
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}
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const pluginId = plugin.Id;
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// Get current injector config
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const configUrl = `${server}/Plugins/${pluginId}/Configuration`;
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const configResponse = await fetch(configUrl, {
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headers: { 'X-Emby-Token': token }
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});
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if (!configResponse.ok) {
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throw new Error(`Failed to get plugin config: ${configResponse.statusText}`);
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}
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const injectorConfig = await configResponse.json();
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// Ensure CustomJavaScripts array exists
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if (!injectorConfig.CustomJavaScripts) {
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injectorConfig.CustomJavaScripts = [];
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}
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// Create the script content
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const scriptContent = `// KefinTweaks Configuration
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// This file is automatically generated by KefinTweaks Configuration UI
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// Do not edit manually unless you know what you're doing
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window.KefinTweaksConfig = ${JSON.stringify(configToSave, null, 2)};`;
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// Find or create KefinTweaks-Config script
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const existingScriptIndex = injectorConfig.CustomJavaScripts.findIndex(
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script => script.Name === 'KefinTweaks-Config'
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);
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if (existingScriptIndex !== -1) {
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// Update existing script
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injectorConfig.CustomJavaScripts[existingScriptIndex].Script = scriptContent;
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} else {
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// Add new script
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injectorConfig.CustomJavaScripts.push({
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Name: 'KefinTweaks-Config',
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Script: scriptContent,
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Enabled: true,
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RequiresAuthentication: false
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});
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}
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// Save the updated configuration
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const saveResponse = await fetch(configUrl, {
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method: 'POST',
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headers: {
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'X-Emby-Token': token,
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'Content-Type': 'application/json'
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},
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body: JSON.stringify(injectorConfig)
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});
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if (!saveResponse.ok) {
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throw new Error(`Failed to save plugin config: ${saveResponse.statusText}`);
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}
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LOG('Successfully saved config to JS Injector plugin');
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return true;
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} catch (err) {
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ERR('Error saving config to JS Injector:', err);
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return false;
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}
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}
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/**
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* Add the link to the existing container
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* @param {Element} container - The custom menu options container
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* @param {string} name - Display name for the menu item
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* @param {string} icon - Material icon name
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* @param {string} url - URL to navigate to
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* @param {boolean} openInNewTab - Whether to open in new tab
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* @returns {boolean} - True if successfully added
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*/
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function addLinkToContainer(container, name, icon, url, openInNewTab) {
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try {
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// Check if link already exists to prevent duplicates
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|
const existingLinks = container.querySelectorAll('a[href="' + url + '"]');
|
|
const existingByText = Array.from(container.querySelectorAll('.navMenuOptionText')).find(el => el.textContent === name);
|
|
|
|
if (existingLinks.length > 0 || existingByText) {
|
|
LOG(`Custom menu link already exists, skipping: ${name}`);
|
|
return true;
|
|
}
|
|
|
|
// Create the menu link element
|
|
const link = document.createElement('a');
|
|
link.setAttribute('is', 'emby-linkbutton');
|
|
link.className = 'emby-button navMenuOption lnkMediaFolder';
|
|
link.dataset.name = name.toLowerCase().replace(' ', '-');
|
|
link.href = url;
|
|
|
|
if (openInNewTab) {
|
|
link.setAttribute('rel', 'noopener noreferrer');
|
|
link.setAttribute('target', '_blank');
|
|
}
|
|
|
|
// Create the icon span
|
|
const iconSpan = document.createElement('span');
|
|
iconSpan.className = `material-icons navMenuOptionIcon ${icon}`;
|
|
iconSpan.setAttribute('aria-hidden', 'true');
|
|
|
|
// Create the text span
|
|
const textSpan = document.createElement('span');
|
|
textSpan.className = 'navMenuOptionText';
|
|
textSpan.textContent = name;
|
|
|
|
// Append icon and text to link
|
|
link.appendChild(iconSpan);
|
|
link.appendChild(textSpan);
|
|
|
|
// Append link to container
|
|
container.appendChild(link);
|
|
|
|
LOG(`Successfully added custom menu link: ${name}`);
|
|
return true;
|
|
} catch (err) {
|
|
ERR(`Error adding custom menu link ${name}:`, err);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
let _watchlistTabIndex = null;
|
|
|
|
async function fetchWatchlistTabIndex() {
|
|
// Fetch the tab index as we do in addCustomMenuLink
|
|
try {
|
|
const response = await fetch(`${ApiClient._serverAddress}/CustomTabs/Config`, {
|
|
method: "GET",
|
|
headers: {
|
|
"Content-Type": "application/json",
|
|
"X-Emby-Token": ApiClient._serverInfo.AccessToken || ApiClient.accessToken(),
|
|
},
|
|
});
|
|
const data = await response.json();
|
|
let tabIndex = null;
|
|
data.forEach((tab, index) => {
|
|
if (tab.ContentHtml.indexOf('sections watchlist') !== -1) {
|
|
tabIndex = index + 2;
|
|
}
|
|
});
|
|
return tabIndex;
|
|
} catch (err) {
|
|
ERR('Failed to fetch watchlist tab index:', err);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get watchlist tab index, fetching if not yet set
|
|
* @returns {number|null} The watchlist tab index or null if not found
|
|
*/
|
|
async function getWatchlistTabIndex() {
|
|
if (_watchlistTabIndex !== null) {
|
|
return _watchlistTabIndex;
|
|
}
|
|
|
|
// Check if the tab index is already stored in local storage
|
|
const storedTabIndex = localStorage.getItem(`kefinTweaks_watchlistTabIndex_${ApiClient.serverId()}`);
|
|
if (storedTabIndex) {
|
|
_watchlistTabIndex = Number(storedTabIndex);
|
|
LOG('Loaded watchlist tab index from local storage:', _watchlistTabIndex);
|
|
|
|
// Fetch tab in the background in case it has changed
|
|
fetchWatchlistTabIndex();
|
|
return _watchlistTabIndex;
|
|
}
|
|
|
|
_watchlistTabIndex = await fetchWatchlistTabIndex();
|
|
|
|
// Save to local storage
|
|
localStorage.setItem(`kefinTweaks_watchlistTabIndex_${ApiClient.serverId()}`, _watchlistTabIndex);
|
|
return _watchlistTabIndex;
|
|
}
|
|
|
|
// Expose utilities to global scope
|
|
window.KefinTweaksUtils = {
|
|
onViewPage,
|
|
notifyHandlers,
|
|
getCurrentView,
|
|
getHandlerCount,
|
|
clearHandlers,
|
|
addCustomMenuLink,
|
|
saveConfigToJavaScriptInjector,
|
|
getWatchlistTabIndex
|
|
};
|
|
|
|
LOG('Initialized successfully');
|
|
LOG('Available at window.KefinTweaksUtils');
|
|
})();
|