136 lines
3.7 KiB
JavaScript
136 lines
3.7 KiB
JavaScript
class PandoraScroll extends HTMLElement {
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constructor() {
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super()
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if (this.attributes.src && this.attributes.src.value) {
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const attributes = parseIframeURL(this.attributes.src.value)
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Object.keys(attributes).forEach(key => {
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if (key[0] != '_') {
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this.setAttribute(key, attributes[key])
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}
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})
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}
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const shadow = this.attachShadow({mode: 'open'})
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const link = document.createElement('link')
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link.rel = 'stylesheet'
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link.href = document.head.querySelector('link[rel="stylesheet"]').href
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const style = document.createElement('style')
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const body = document.createElement('div')
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body.classList.add('pandora-scroll')
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shadow.appendChild(link)
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shadow.appendChild(style)
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shadow.appendChild(body)
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this.mute = function() {
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shadow.querySelectorAll('video').forEach(video => {
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video.muted = true
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})
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}
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}
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static get observedAttributes() { return ['muted']; }
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connectedCallback() {
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console.log('scroll connected')
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this._loadAnnotations()
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this._updateStyle()
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}
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disconnectedCallback() {
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console.log('scroll disconnected')
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}
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adoptedCallback() {
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console.log('Custom square element moved to new page.');
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}
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attributeChangedCallback(name, oldValue, newValue) {
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console.log('value changed', name, oldValue, newValue);
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this._updateStyle()
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}
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_updateStyle() {
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const shadow = this.shadowRoot;
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const childNodes = shadow.childNodes;
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for (const node of childNodes) {
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if (node.nodeName === 'STYLE') {
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node.textContent = `
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.pandora-scroll {
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position: relative;
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display: block;
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}
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`
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}
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}
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}
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_config() {
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var config = {}
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for (var i=0; i<this.attributes.length; i++) {
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var a = this.attributes[i]
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config[a.name] = a.value
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if (a.name == 'layers') {
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config[a.name] = a.value.split(' ')
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} else if (['in', 'out'].indexOf(a.name) > -1) {
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config[a.name] = parseTime(a.value)
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} else {
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config[a.name] = a.value
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}
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}
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return config
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}
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_loadAnnotations() {
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var config = this._config()
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config.root = this.shadowRoot.querySelector('.pandora-scroll')
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console.log(config)
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loadAnnotations(config)
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}
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}
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customElements.define("pandora-scroll", PandoraScroll);
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function parseTime(value) {
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return value.split(":").map(p => parseFloat(p)).reduce((c, p) => { return c*60 + p}, 0)
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}
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function isInside(config, annotation) {
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if (!config['in'] && !config['out']) {
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return true
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}
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if (annotation['in'] < config['out'] && annotation['out'] > config['in']) {
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return true
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}
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return false
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}
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function parseIframeURL(value) {
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var config = {}
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value = value.replace('/player/', '/')
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value = value.replace('/editor/', '/')
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var data = value.split('#embed?')
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function decodeValue(value) {
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return decodeURIComponent(value)
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.replace(/_/g, ' ').replace(/\t/g, '_')
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.replace(/\x0E/g, '<').replace(/\x0F/g, '>');
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}
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var args = data[1].replace('&', '&').split('&').map(kv => {
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kv = kv.split('=')
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console.log(kv, decodeValue(kv[1]))
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return [kv[0], JSON.parse(decodeValue(kv[1]))]
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}).reduce((k, v) => {
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k[v[0]] = v[1]
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return k
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}, {})
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var parts = data[0].split('/')
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config.item = parts[3]
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var ts = parts[4].split(',')
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config['in'] = ts[0]
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config['out'] = ts[1]
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config._args = args
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if (args.showLayers) {
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config.layers = args.showLayers.join(' ')
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}
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if (args.showTimeline) {
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config.timeline = "slitscan"
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}
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return config
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}
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