332 lines
10 KiB
JavaScript
332 lines
10 KiB
JavaScript
var cache = cache || {}
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var layer = 'keywords'
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var imageResolution = 480
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var videoExtension
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async function pandoraAPI(action, data) {
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var url = pandoraURL + '/api/'
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//var url = '/pandoraAPI/'
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var key = JSON.stringify([action, data])
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if (!cache[key]) {
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var response = await fetch(url, {
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method: 'POST',
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headers: {'Content-Type': 'application/json'},
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body: JSON.stringify({
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action: action,
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data: data
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})
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})
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cache[key] = await response.json()
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}
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return cache[key]
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}
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function setVideoSrc(video, src) {
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var ext
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if (!videoExtension) {
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[
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['video/mp4; codecs="avc1.42E01E, mp4a.40.2"', '.mp4'],
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['video/webm; codecs="vp8, vorbis"', '.webm'],
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].forEach(opt => {
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if (videoExtension) { return }
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if (video.canPlayType(opt[0]).replace('no', '')) {
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videoExtension = opt[1]
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}
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})
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}
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src = src.replace('.webm', videoExtension)
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if (src != video.src) {
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video.src = src
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}
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}
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function resize() {
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var video = document.querySelector('video')
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if (video && video._frame) {
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var rect = video._frame.getBoundingClientRect();
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video.style.top = (rect.top + window.scrollY) + 'px'
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}
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}
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function updatePlayer(video, frame, currentTime, out, src) {
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var rect = frame.getBoundingClientRect();
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video.style.opacity = 0
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video.style.top = (rect.top + window.scrollY) + 'px'
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video.style.display = 'block';
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if (src) {
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setVideoSrc(video, src)
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}
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//video.poster = frame.querySelector('img').src
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var muted = video.muted
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// video.muted = true
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video.currentTime = currentTime
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video.dataset.in = currentTime
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video.dataset.out = out
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video._frame = frame
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const show = event => {
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video.style.opacity = 1
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video.muted = muted
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video.removeEventListener('seeked', show)
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}
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video.addEventListener('seeked', show)
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video.play()
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}
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function isElementInViewport (el) {
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var rect = el.getBoundingClientRect();
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return (
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rect.top >= 0 &&
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rect.left >= 0 &&
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rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && /* or $(window).height() */
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Math.floor(rect.right) <= (window.innerWidth || document.documentElement.clientWidth) /* or $(window).width() */
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);
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}
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function onVisibilityChange(el, callback) {
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var old_visible;
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return function () {
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var visible = isElementInViewport(el);
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if (visible != old_visible) {
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old_visible = visible;
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if (visible) {
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el.classList.add('visible')
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} else {
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el.classList.remove('visible')
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}
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if (typeof callback == 'function') {
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callback(visible);
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}
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}
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}
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}
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function scrollTo(element) {
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var delta = element.offsetTop - document.scrollingElement.scrollTop,
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duration = 1000, t = 40, n = duration / t,
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step = delta / n;
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function scroll() {
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if (document.scrollingElement.scrollTop + step > element.offsetTop) {
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document.scrollingElement.scrollTop = element.offsetTop
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n = 0
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} else {
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document.scrollingElement.scrollTop += step
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}
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n--
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if (n) setTimeout(scroll, t)
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}
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scroll()
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}
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function timeupdate(event) {
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var video = event.target
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var now = video.currentTime
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document.querySelectorAll('#player .annotation').forEach(annotation => {
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var display
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if (
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parseFloat(annotation.dataset['in']) < now && parseFloat(annotation.dataset['out']) > now
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) {
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display = 'block'
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} else {
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display = 'none'
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}
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if (annotation.style.display != display) {
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annotation.style.display = display
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}
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})
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if (event.target.dataset.out && event.target.dataset.in) {
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var in_= parseFloat(event.target.dataset.in)
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var out_= parseFloat(event.target.dataset.out)
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if (event.target.currentTime >= out_) {
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/*
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var next
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if (event.target._frame) {
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next = event.target._frame.parentElement.nextSibling
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if (next) {
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next = next.querySelector('.frame')
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}
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}
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if (next) {
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scrollTo(next)
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} else {
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event.target.pause()
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}
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*/
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if (config.pause) {
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event.target.pause()
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} else {
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event.target.currentTime = in_
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}
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}
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}
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}
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function formatInfo(config, player) {
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var info = document.createElement('div')
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info.classList.add('info')
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var folder = document.createElement('a')
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folder.href = '..'
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folder.innerText = config.folder
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var h1 = document.createElement('h1')
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h1.appendChild(folder)
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var title = document.createElement('span')
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title.innerHTML = ': ' + config.title
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h1.appendChild(title)
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info.appendChild(h1)
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player.appendChild(info)
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return info
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}
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function renderAnnotation(config, video, player, annotation) {
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var div = document.createElement('div')
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div.classList.add('annotation')
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annotation.value = annotation.value.replace(/src="\//g, `src="${pandoraURL}/`).replace(/href="\//g, `href="${pandoraURL}/`)
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div.dataset['in'] = annotation['in']
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div.dataset['out'] = annotation['out']
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div.innerHTML = `
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<div class="text">${annotation.value}</div>
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`
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player.appendChild(div)
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}
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function renderPlayer(config) {
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var player = document.querySelector('#ascroll')
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player.id = 'player'
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config.loaded = false
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var video = document.createElement('video')
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video.classList.add('player')
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video.playsinline = true
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video.setAttribute('playsinline', 'playsinline')
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video.setAttribute('webkit-playsinline', 'webkit-playsinline')
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video.WebKitPlaysInline = true
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video.muted = false
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video.controls = true
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if (config.item) {
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setVideoSrc(video, `${pandoraURL}/${config.item}/480p.webm`)
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video.poster = `${pandoraURL}/${config.item}/480p.jpg`
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}
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video.addEventListener('timeupdate', timeupdate)
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var box = document.createElement('div')
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box.classList.add('vbox')
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box.appendChild(video)
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config.info = formatInfo(config, player)
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player.appendChild(box)
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config.annotations.forEach(annotation => {
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renderAnnotation(config, video, player, annotation)
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})
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config.loaded = true
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}
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async function loadClips(annotations) {
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var items = annotations.map(annotation => annotation.id.split('/')[0])
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items = [...new Set(items)]
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return pandoraAPI('findClips', {itemsQuery: {
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conditions: [{key: 'id', operator: '&', value: items}]
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}, range: [0, 10000], keys: [
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'id', 'hue', 'saturation', 'lightness'
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]}).then(response => {
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var colors = {}
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response.data.items.forEach(clip => {
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colors[clip.id] = clip
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})
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var previous
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annotations.forEach(annotation => {
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var clipId = annotation.id.split('/')[0] + '/' + annotation.in.toFixed(3) + '-'+ annotation.out.toFixed(3)
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annotation.color1 = colors[clipId]
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if(previous) {
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previous.color2 = annotation.color1
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}
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previous = annotation
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})
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if (annotations.length) {
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annotations[annotations.length - 1].color2 = annotations[0].color1
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}
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return annotations
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})
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}
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function loadAnnotations(config) {
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if (config.item) {
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pandoraAPI('get', {id: config.item, keys: [
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'title', 'date', 'country', 'featuring', 'layers', 'folder'
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]}).then(response => {
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['title', 'date', 'country', 'featuring', 'folder'].forEach(key => {
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config[key] = response.data[key]
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})
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var annotations = []
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Object.keys(response.data.layers).forEach(layer => {
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response.data.layers[layer].forEach(annotation => {
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if (!(config.user && annotation.user != config.user)) {
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annotations.push(annotation)
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}
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})
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})
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loadClips(annotations).then(annotations => {
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config.annotations = annotations.filter(annotation => {
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if (config.only_e) {
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if (annotation.value.slice(0, 2) == 'E:') {
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annotation.value = annotation.value.slice(2).trim()
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return true
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} else {
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return false
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}
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} else {
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return annotation.value.slice(0, 2) != 'E:'
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}
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})
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renderPlayer(config)
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})
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})
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} else {
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var cited = {}
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pandoraAPI('getEdit', {id: config.edit, keys: []}).then(response => {
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var annotations = []
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response.data.clips.forEach(clip => {
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cited[clip.item] = {
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title: clip.title,
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director: clip.director,
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id: clip.item
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}
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clip.layers[config.layer].forEach(annotation => {
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if (config.user && annotation.user != config.user) {
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return
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}
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;['title', 'director', 'date'].forEach(key => {
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annotation[key] = clip[key]
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})
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if (config.only_e) {
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if (annotation.value.slice(0, 2) == 'E:') {
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annotation.value = annotation.value.slice(2).trim()
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annotations.push(annotation)
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}
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} else {
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if (annotation.value.slice(0, 2) != 'E:') {
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annotations.push(annotation)
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}
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}
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})
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})
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loadClips(annotations).then(annotations => {
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config.annotations = annotations
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config.cited = Object.values(cited)
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renderPlayer(config)
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})
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})
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}
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}
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config.layer = config.layer || layer
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if (config.annotations) {
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renderPlayer(config)
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} else {
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loadAnnotations(config)
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}
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window.addEventListener('resize', resize, false);
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