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import { h, Component } from 'preact'
import { isMobile } from '../util'
import db from '../db'
import { Lethargy } from 'lethargy'
export default class App extends Component {
constructor() {
super()
this.state = {
index: 0,
data: db.backupDB,
}
this.lastScroll = Date.now()
this.onScroll = this.onScroll.bind(this)
this.lethargy = new Lethargy(8, 100, 1.1, 1000)
db.fetch( data => {
document.body.parentNode.classList.remove('loading')
this.setState({ data })
})
// document.body.addEventListener('mousewheel', this.onScroll)
// document.body.addEventListener('DOMMouseScroll', this.onScroll)
document.body.addEventListener('wheel', this.onScroll)
}
onScroll(e) {
e.preventDefault()
e.stopPropagation()
const scrollDirection = this.lethargy.check(e)
const now = Date.now()
if (scrollDirection !== false && now - this.lastScroll > 500) {
this.lastScroll = now
const cellCount = this.state.data.painting.length
const index = (this.state.index + cellCount - scrollDirection) % cellCount
this.setState({ index })
}
}
render() {
const paintings = this.state.data.painting.map( (painting, i) => {
return (
<div class='cell' key={i}>
<div class='painting'>
<div class='image' style={'background-image: url(' + painting.image.uri + ')'} />
</div>
<div class='about'>
{painting.title}<br/>
{painting.medium}<br/>
{painting.date}<br/>
{painting.image.caption}<br/>
</div>
</div>
)
})
const about = this.state.data.page[0]
const body = (about.body || '').replace(/\n/g,'<br>')
const page = (
<div class='cell'>
<div class='painting'>
<div class='image' style={'background-image: url(' + about.image.uri + ')'} />
</div>
<div class='about' dangerouslySetInnerHTML={{ __html: body }}>
</div>
</div>
)
const scrollPercentage = this.state.index * -100
return (
<div>
<div class='header'>Procedural Paintings by Pepper</div>
<div class='scroller'
style={'transform:translateY(' + scrollPercentage + 'vh)'}
>
{paintings}
{page}
</div>
</div>
)
}
}
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