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import React, { Component } from 'react'
import { connect } from 'react-redux'
import actions from 'app/actions'
import { ROMAN_NUMERALS } from 'app/constants'
import { timestamp } from 'app/utils'
import { thumbnailURL, sectionProgressPercentage } from 'app/utils/annotation.utils'
import { SpeakerIcon } from '../nav/viewer.icons'
const SECTION_WIDTH = 13 * 16
class ViewerSectionsList extends Component {
constructor(props) {
super(props)
this.scrollRef = React.createRef()
this.handleWheel = this.handleWheel.bind(this)
}
shouldComponentUpdate(nextProps) {
if (this.props.currentSection !== nextProps.currentSection) {
this.scrollToSection(nextProps.currentSection)
}
if (nextProps.nav !== this.props.nav) return true
return nextProps.nav
}
scrollToSection(section) {
const dx = section.index * SECTION_WIDTH
clearTimeout(this.timeout)
this.timeout = setTimeout(() => {
this.scrollRef.current.scrollTo(dx, 0)
}, 500)
}
handleWheel(e) {
let delta = Math.abs(e.deltaY) > Math.abs(e.deltaX) ? e.deltaY : e.deltaX
this.scrollRef.current.scrollLeft += delta
}
render() {
const { play_ts, sections, media, currentSection } = this.props
return (
<div
ref={this.scrollRef}
className="viewer-sections-scroll"
onWheel={e => this.handleWheel(e)}
>
{sections.map(section => {
// console.log(section)
let mediaItem
if (section.cover_id) {
mediaItem = media.lookup[section.cover_id]
} else {
mediaItem = section.media.length ? section.media[0].media : null
}
const { no_audio, section_nav_color } = section
const progress = sectionProgressPercentage(section, play_ts)
return (
<div
className={(!currentSection || section.index === currentSection.index) ? "viewer-section current-section" : "viewer-section"}
key={section.index}
onClick={() => actions.viewer.seekToSection(section)}
>
<div>
<div className="section-thumbnail" style={{
backgroundImage: mediaItem && 'url(' + thumbnailURL(mediaItem) + ')',
}}>
{!no_audio &&
<div className={"section-duration-" + section_nav_color}>
<div className="section-duration">
{timestamp(section.duration)}
</div>
<div className="section-has-audio">
{SpeakerIcon}
</div>
<div className="section-progress-bar">
<div className="section-progress"
style={{ width: progress }}
/>
</div>
</div>
}
</div>
<div className="section-title">
{ROMAN_NUMERALS[section.index]}<br />
{section.title}
</div>
<div className="section-media">
{section.mediaLabels}
</div>
</div>
</div>
)
})}
</div>
)
}
}
const mapStateToProps = state => ({
media: state.media.index,
nav: state.viewer.nav,
play_ts: state.audio.play_ts,
sections: state.viewer.sections,
currentSection: state.viewer.currentSection,
})
export default connect(mapStateToProps)(ViewerSectionsList)
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