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import React, { Component } from 'react'
import { Route } from 'react-router-dom'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'
import actions from '../../../actions'
import ParagraphForm from '../components/paragraph.form'
const floatLT = (a,b) => ((a*10|0) < (b*10|0))
const floatLTE = (a,b) => ((a*10|0) === (b*10|0) || floatLT(a,b))
const MEDIA_TYPES = new Set(['image', 'gallery', 'vitrine', 'video'])
class ParagraphList extends Component {
state = {
paragraphs: [],
currentParagraph: -1,
currentAnnotation: -1,
selectedParagraph: null,
selectedParagraphOffset: 0,
}
constructor(props) {
super(props)
this.handleAnnotationClick = this.handleAnnotationClick.bind(this)
this.handleParagraphDoubleClick = this.handleParagraphDoubleClick.bind(this)
this.handleCloseParagraphForm = this.handleCloseParagraphForm.bind(this)
this.updateSelectedParagraph = this.updateSelectedParagraph.bind(this)
}
componentDidMount() {
this.build()
}
componentDidUpdate(prevProps) {
if (this.props.paragraph !== prevProps.paragraph) {
this.build()
}
if (this.props.audio.play_ts === prevProps.audio.play_ts) return
this.setCurrentParagraph()
}
setCurrentParagraph() {
const { play_ts } = this.props.audio
const insideParagraph = this.state.paragraphs.some(paragraph => {
if (floatLTE(paragraph.start_ts, play_ts) && floatLT(play_ts, paragraph.end_ts)) {
this.setCurrentAnnotation(paragraph, play_ts)
return true
}
return false
})
if (!insideParagraph) {
this.setState({
currentParagraph: -1,
currentAnnotation: -1,
})
}
}
setCurrentAnnotation(paragraph, play_ts) {
const { id: currentParagraph, annotations } = paragraph
let currentAnnotation
let annotation
let i = 0
let len = annotations.length
for (let i = 0; i < len - 1; i++) {
if (floatLT(play_ts, annotations[i+1].start_ts)) {
currentAnnotation = annotations[i].id
break
}
}
if (!currentAnnotation) {
currentAnnotation = annotations[len-1].id
}
this.setState({ currentParagraph, currentAnnotation })
}
build() {
const { order: annotationOrder, lookup: annotationLookup } = this.props.annotation
const { lookup: paragraphLookup } = this.props.paragraph
let currentParagraph = {}
const paragraphs = []
// loop over the annotations in time order
annotationOrder.forEach((annotation_id, i) => {
const annotation = annotationLookup[annotation_id]
const paragraph = paragraphLookup[annotation.paragraph_id]
// if this annotation is media, insert it after the current paragraph
if (MEDIA_TYPES.has(annotation.type)) {
paragraphs.push({
id: ('index_' + i),
type: annotation.type,
start_ts: annotation.start_ts,
end_ts: 0,
annotations: [annotation],
})
return
}
// if this annotation is from a different paragraph, make a new paragraph
if (annotation.paragraph_id !== currentParagraph.id) {
const paragraph_type = getParagraphType(annotation, paragraph)
currentParagraph = {
id: annotation.paragraph_id || ('index_' + i),
type: paragraph_type,
start_ts: annotation.start_ts,
end_ts: 0,
annotations: [],
}
paragraphs.push(currentParagraph)
}
// if this annotation is a paragraph_end, set the end timestamp
if (annotation.type === 'paragraph_end') {
currentParagraph.end_ts = annotation.start_ts
}
// otherwise, just append this annotation to the paragraph
else {
currentParagraph.annotations.push(annotation)
}
})
for (let i = 0; i < (paragraphs.length - 1); i++) {
if (!paragraphs[i].end_ts) {
paragraphs[i].end_ts = paragraphs[i+1].start_ts - 0.1
}
}
this.setState({ paragraphs })
}
handleAnnotationClick(e, paragraph, annotation){
actions.audio.seek(annotation.start_ts)
}
handleParagraphDoubleClick(e, paragraph) {
console.log(e.target.parentNode)
let paragraphNode = e.target
if (!paragraphNode.classList.contains('paragraph')) {
paragraphNode = paragraphNode.parentNode
}
this.setState({
selectedParagraph: { ...paragraph },
selectedParagraphOffset: paragraphNode.offsetTop
})
}
updateSelectedParagraph(selectedParagraph) {
this.setState({ selectedParagraph })
}
handleCloseParagraphForm() {
this.setState({ selectedParagraph: null })
}
render() {
const { media, paragraphElementLookup } = this.props
const { paragraphs, selectedParagraph, selectedParagraphOffset, currentParagraph, currentAnnotation } = this.state
return (
<div className='paragraphs'>
<div className='content'>
{paragraphs.map(paragraph => {
if (selectedParagraph && selectedParagraph.id === paragraph.id) {
paragraph = selectedParagraph
}
if (paragraph.type in paragraphElementLookup) {
const ParagraphElement = paragraphElementLookup[paragraph.type]
return (
<ParagraphElement
key={paragraph.id}
paragraph={paragraph}
media={media}
currentParagraph={paragraph.id === currentParagraph}
currentAnnotation={paragraph.id === currentParagraph && currentAnnotation}
onAnnotationClick={this.handleAnnotationClick}
onDoubleClick={this.handleParagraphDoubleClick}
/>
)
} else {
return <div key={paragraph.id}>{'(waiting to implement' + paragraph.type + ')'}</div>
}
})}
{selectedParagraph &&
<ParagraphForm
paragraph={selectedParagraph}
onUpdate={this.updateSelectedParagraph}
onClose={this.handleCloseParagraphForm}
y={selectedParagraphOffset}
/>
}
</div>
</div>
)
}
}
const getParagraphType = (annotation, paragraph) => {
if (!paragraph) {
return annotation.type
}
return paragraph.type
}
const mapStateToProps = state => ({
paragraph: state.paragraph.index,
annotation: state.annotation.index,
audio: state.audio,
media: state.media.index,
})
const mapDispatchToProps = dispatch => ({
})
export default connect(mapStateToProps, mapDispatchToProps)(ParagraphList)
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