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/* Background Video — frontend */ |
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(function () { |
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'use strict'; |
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|
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var reducedMotion = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches; |
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|
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/* ── Hosted video ─────────────────────────────────────────────────────── */ |
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function initHosted(outer, media, cfg) { |
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var video = document.createElement('video'); |
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video.src = cfg.url; |
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video.muted = true; |
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video.autoplay = false; |
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video.loop = cfg.loop; |
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video.playsInline = true; |
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video.playbackRate = cfg.rate; |
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video.style.cssText = 'position:absolute;inset:0;width:100%;height:100%;object-fit:' + cfg.fit + ';object-position:' + cfg.pos + ';pointer-events:none;'; |
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media.appendChild(video); |
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|
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var playing = false; |
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|
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function tryPlay() { |
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if (playing) { return; } |
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video.play().then(function () { |
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playing = true; |
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outer.classList.add('bkbv--playing'); |
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}).catch(function () {}); |
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} |
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function tryPause() { |
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if (!playing) { return; } |
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video.pause(); |
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playing = false; |
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} |
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|
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if (cfg.inView) { |
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var obs = new IntersectionObserver(function (entries) { |
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entries.forEach(function (e) { |
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if (e.isIntersecting) { tryPlay(); } |
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else { tryPause(); } |
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}); |
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}, { threshold: 0.1 }); |
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obs.observe(outer); |
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} else { |
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tryPlay(); |
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} |
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|
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if (cfg.pauseHover) { |
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outer.addEventListener('mouseenter', function () { video.pause(); playing = false; }); |
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outer.addEventListener('mouseleave', function () { tryPlay(); }); |
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} |
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} |
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|
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/* ── YouTube iframe ───────────────────────────────────────────────────── */ |
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function initYouTube(outer, media, cfg) { |
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var id = cfg.youtubeId; |
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if (!id) { return; } |
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|
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var params = [ |
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'autoplay=1', 'mute=1', 'controls=0', 'disablekb=1', 'fs=0', |
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'iv_load_policy=3', 'modestbranding=1', 'rel=0', 'showinfo=0', |
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'loop=' + (cfg.loop ? '1' : '0'), |
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cfg.loop ? 'playlist=' + id : '', |
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].filter(Boolean).join('&'); |
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|
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var iframe = document.createElement('iframe'); |
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iframe.src = 'https://www.youtube-nocookie.com/embed/' + id + '?' + params; |
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iframe.allow = 'autoplay; encrypted-media'; |
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iframe.setAttribute('allowfullscreen', ''); |
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iframe.setAttribute('tabindex', '-1'); |
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iframe.setAttribute('aria-hidden', 'true'); |
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media.appendChild(iframe); |
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|
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iframe.addEventListener('load', function () { |
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outer.classList.add('bkbv--playing'); |
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}); |
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} |
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|
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/* ── Vimeo iframe ─────────────────────────────────────────────────────── */ |
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function initVimeo(outer, media, cfg) { |
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var id = cfg.vimeoId; |
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if (!id) { return; } |
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|
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var params = [ |
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'autoplay=1', 'muted=1', 'controls=0', 'loop=' + (cfg.loop ? '1' : '0'), |
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'background=1', 'dnt=1', |
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].join('&'); |
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|
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var iframe = document.createElement('iframe'); |
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iframe.src = 'https://player.vimeo.com/video/' + id + '?' + params; |
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iframe.allow = 'autoplay; fullscreen; picture-in-picture'; |
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iframe.setAttribute('tabindex', '-1'); |
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iframe.setAttribute('aria-hidden', 'true'); |
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media.appendChild(iframe); |
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|
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iframe.addEventListener('load', function () { |
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outer.classList.add('bkbv--playing'); |
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}); |
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} |
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|
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/* ── init one block ───────────────────────────────────────────────────── */ |
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function initBlock(outer) { |
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if (outer._bkbvInit) { return; } |
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outer._bkbvInit = true; |
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|
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if (reducedMotion) { return; } |
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|
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var media = outer.querySelector('.bkbv-media'); |
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if (!media) { return; } |
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|
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var cfg = { |
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type: outer.getAttribute('data-video-type') || 'hosted', |
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url: outer.getAttribute('data-video-url') || '', |
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youtubeId: outer.getAttribute('data-youtube-id') || '', |
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vimeoId: outer.getAttribute('data-vimeo-id') || '', |
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loop: outer.getAttribute('data-loop') !== '0', |
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inView: outer.getAttribute('data-in-view') !== '0', |
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pauseHover:outer.getAttribute('data-pause-hover') === '1', |
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rate: parseFloat(outer.getAttribute('data-rate')) || 1, |
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fit: outer.getAttribute('data-object-fit') || 'cover', |
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pos: outer.getAttribute('data-object-pos') || 'center center', |
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}; |
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|
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if (cfg.type === 'hosted' && cfg.url) { |
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initHosted(outer, media, cfg); |
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} else if (cfg.type === 'youtube' && cfg.youtubeId) { |
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initYouTube(outer, media, cfg); |
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} else if (cfg.type === 'vimeo' && cfg.vimeoId) { |
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initVimeo(outer, media, cfg); |
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} |
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} |
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|
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/* ── boot ────────────────────────────────────────────────────────────── */ |
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function init() { |
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document.querySelectorAll('.bkbv-outer[data-video-type]').forEach(initBlock); |
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} |
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|
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if (document.readyState === 'loading') { |
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document.addEventListener('DOMContentLoaded', init); |
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} else { |
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init(); |
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} |
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}()); |
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