Function loadVideoJsLibrary

Picviewer CE+/dist.user.js:12432–12521

()

        });
    }
    function loadVideoJsLibrary() {
        if (!window.videoJsStatus) {
            window.videoJsStatus = 'none';
        }

        return new Promise((resolve, reject) => {
            if (window.videoJsStatus === 'loaded') {
                return resolve();
            }

            if (window.videoJsStatus === 'loading') {
                const interval = setInterval(() => {
                    if (window.videoJsStatus === 'loaded') {
                        clearInterval(interval);
                        resolve();
                    } else if (window.videoJsStatus === 'failed') {
                        clearInterval(interval);
                        reject(new Error('Previous Video.js loading attempt failed.'));
                    }
                }, 100);
                return;
            }

            window.videoJsStatus = 'loading';

            const cssSources = [
                "https://vjs.zencdn.net/8.23.3/video-js.min.css",
                "https://unpkg.com/video.js/dist/video-js.min.css",
                "https://cdn.jsdelivr.net/npm/video.js@8.23.3/dist/video-js.min.css"
            ];
            const jsSources = [
                "https://vjs.zencdn.net/8.23.3/video.min.js",
                "https://unpkg.com/video.js/dist/video.min.js",
                "https://cdn.jsdelivr.net/npm/video.js@8.23.3/dist/video.min.js"
            ];
            const fetchWithFallback = (urls) => {
                return new Promise((resolve, reject) => {
                    let lastError = null;
                    const urlsToTry = [...urls];

                    const tryNext = () => {
                        if (urlsToTry.length === 0) {
                            reject(new Error(`Failed to load resource after trying all sources. Last error: ${lastError}`));
                            return;
                        }

                        const url = urlsToTry.shift();
                        const xhr = new XMLHttpRequest();
                        xhr.open('GET', url);
                        xhr.onload = () => {
                            if (xhr.status === 200) {
                                resolve(xhr.responseText);
                            } else {
                                lastError = `Status ${xhr.status} from ${url}`;
                                console.warn(`Failed to load ${url}, trying next source...`);
                                tryNext();
                            }
                        };