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58 lines
1.7 KiB
JavaScript

// 1. Import dependencies, select DOM elements, define global var
import srtParser2 from 'https://cdn.skypack.dev/srt-parser-2';
const player = document.querySelector('#player')
const sub = document.querySelector('#sub')
// 4. Interactive functions to attach to the subtitle id
// a. note that there can be more functions for every id
// using the syntax id: () => {function1(); function2()}
// b. note that to pass params to the functions you need to pass them to all
// using the syntax: id: (param) => function1(param)
//
const srtFunctions = {
// id: () => callback()
1: () => testFunction(),
2: () => testFunction(),
3: () => test2()
}
const printText = (text) => {
sub.innerHTML = text
}
const testFunction = () => {
console.log('test function eheh')
}
const test2 = () => {
console.log('test 2')
}
// 3. Parse .srt file and setup audio player callback
const readSRT = (srt) => {
let parser = new srtParser2();
let srt_array = parser.fromSrt(srt)
console.log(srt_array)
let currentId = 0
player.addEventListener('timeupdate', (e)=>{
let current = srt_array.find(
caption =>
caption.startSeconds <= e.target.currentTime &&
caption.endSeconds >= e.target.currentTime
)
if (current != undefined && currentId != parseInt(current.id)){
currentId = parseInt(current.id)
printText(current.text)
// Check if the srtFunctions object has some callback for the current index
if(srtFunctions.hasOwnProperty(current.id))
srtFunctions[current.id]()
}
})
}
// 2. Open .srt file and trigger readSRT() function
fetch('jeetee.srt').then(res=>res.text()).then(data=>readSRT(data))