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import React, { Component } from 'react'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'
import actions from '../../../../actions'
import { ZOOM_STEPS } from '../../constants'
import { clamp } from '../../../../util'
import { positionToTime, timeToPosition } from '../../align.util'
import { AnnotationElementLookup } from './annotation.types'
class AnnotationIndex extends Component {
state = {
items: [],
}
constructor(props){
super(props)
this.handleClick = this.handleClick.bind(this)
}
componentDidUpdate(prevProps) {
if (this.props.index.loading) return
if (prevProps.timeline !== this.props.timeline || prevProps.index !== this.props.index) {
this.update()
}
}
update() {
let { timeline, index } = this.props
let { start_ts, zoom, duration } = this.props.timeline
const { order, lookup } = index
let secondsPerPixel = ZOOM_STEPS[zoom] * 0.1 // 0.1 sec / step
let widthTimeDuration = window.innerHeight * secondsPerPixel // secs per pixel
let timeMin = start_ts - 30.0
let timeMax = Math.min(start_ts + widthTimeDuration, duration)
const items = order.filter(id => {
const { start_ts: ts } = lookup[id]
return (timeMin < ts && ts < timeMax)
}).map(id => lookup[id]).reverse()
this.setState({ items })
}
handleClick(e, annotation) {
actions.audio.seek(annotation.start_ts)
actions.align.setSelectedAnnotation(annotation.id)
}
handleDoubleClick(e, annotation) {
actions.align.showEditAnnotationForm(annotation)
}
render() {
const { timeline } = this.props
const { start_ts, zoom, selected_annotation_id } = timeline
const { items } = this.state
const className = (zoom < 2)
? 'annotationIndex'
: (zoom < 3)
? 'annotationIndex condensed'
: 'annotationIndex collapsed'
return (
<div className={className}>
{items.map(annotation => {
const { id, type, start_ts } = annotation
const AnnotationElement = AnnotationElementLookup[type]
const y = timeToPosition(start_ts, timeline)
return (
<AnnotationElement
key={id}
y={y}
selected={annotation.id === selected_annotation_id}
annotation={annotation}
onClick={this.handleClick}
onDoubleClick={this.handleDoubleClick}
/>
)
})}
</div>
)
}
}
const mapStateToProps = state => ({
timeline: state.align.timeline,
index: state.annotation.index,
})
const mapDispatchToProps = dispatch => ({
})
export default connect(mapStateToProps, mapDispatchToProps)(AnnotationIndex)
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