live_beats/assets/js/app.js
2021-11-08 14:52:45 -05:00

124 lines
3.8 KiB
JavaScript

import "phoenix_html"
import {Socket} from "phoenix"
import {LiveSocket} from "./phoenix_live_view"
import topbar from "../vendor/topbar"
let nowSeconds = () => Math.round(Date.now() / 1000)
let execJS = (selector, attr) => {
document.querySelectorAll(selector).forEach(el => liveSocket.execJS(el, el.getAttribute(attr)))
}
let Hooks = {}
Hooks.Progress = {
setWidth(at){
this.el.style.width = `${Math.floor((at / (this.max - this.min)) * 100)}%`
},
mounted(){
this.min = parseInt(this.el.dataset.min)
this.max = parseInt(this.el.dataset.max)
this.val = parseInt(this.el.dataset.val)
setInterval(() => this.setWidth(this.val++), 1000)
}
}
Hooks.AudioPlayer = {
mounted(){
this.playbackBeganAt = null
this.player = this.el.querySelector("audio")
this.currentTime = this.el.querySelector("#player-time")
this.duration = this.el.querySelector("#player-duration")
this.progress = this.el.querySelector("#player-progress")
let enableAudio = () => {
if(this.player.src){
document.removeEventListener("click", enableAudio)
this.player.play().catch(error => null)
this.player.pause()
}
}
document.addEventListener("click", enableAudio)
this.el.addEventListener("js:listen_now", () => this.play({sync: true}))
this.el.addEventListener("js:play_pause", () => {
if(this.player.paused){
this.play()
}
})
this.handleEvent("play", ({url, token, elapsed}) => {
this.playbackBeganAt = nowSeconds() - elapsed
let currentSrc = this.player.src.split("?")[0]
if(currentSrc === url && this.player.paused){
this.play({sync: true})
} else if(currentSrc !== url) {
this.player.src = `${url}?token=${token}`
this.play({sync: true})
}
})
this.handleEvent("pause", () => {
this.pause()
})
},
play(opts = {}){
let {sync} = opts
this.player.play().then(() => {
if(sync){ this.player.currentTime = nowSeconds() - this.playbackBeganAt }
this.progressTimer = setInterval(() => this.updateProgress(), 100)
}, error => {
if(error.name === "NotAllowedError"){
execJS("#enable-audio", "data-js-show")
}
})
},
pause(){
clearInterval(this.progressTimer)
this.player.pause()
},
updateProgress(){
if(isNaN(this.player.duration)){ return false }
this.progress.style.width = `${(this.player.currentTime / (this.player.duration) * 100)}%`
this.duration.innerText = this.formatTime(this.player.duration)
this.currentTime.innerText = this.formatTime(this.player.currentTime)
},
formatTime(seconds){ return new Date(1000 * seconds).toISOString().substr(14, 5) }
}
let csrfToken = document.querySelector("meta[name='csrf-token']").getAttribute("content")
let liveSocket = new LiveSocket("/live", Socket, {
hooks: Hooks,
params: {_csrf_token: csrfToken},
dom: {
onNodeAdded(node){
if(node.getAttribute && node.getAttribute("data-fade-in")){
from.classList.add("fade-in")
}
},
onBeforeElUpdated(from, to) {
if(from.classList.contains("fade-in")){
from.classList.remove("fade-in")
from.classList.add("fade-in")
}
}
}
})
// Show progress bar on live navigation and form submits
topbar.config({barColors: {0: "#29d"}, shadowColor: "rgba(0, 0, 0, .3)"})
window.addEventListener("phx:page-loading-start", info => topbar.show())
window.addEventListener("phx:page-loading-stop", info => topbar.hide())
window.addEventListener("js:exec", e => e.target[e.detail.call](...e.detail.args))
// connect if there are any LiveViews on the page
liveSocket.connect()
// expose liveSocket on window for web console debug logs and latency simulation:
// >> liveSocket.enableDebug()
// >> liveSocket.enableLatencySim(1000) // enabled for duration of browser session
// >> liveSocket.disableLatencySim()
window.liveSocket = liveSocket