2026.camp.carte/js/components/upcoming-talks.js

90 lines
No EOL
2.2 KiB
JavaScript

import { getUpcomingTalksForRoom } from "../pretalx.js"
class UpcomingTalksElement extends HTMLElement {
#roomId
#loadingPromise
srcObject = undefined
get roomId(){
return this.#roomId
}
set roomId(val){
this.#roomId = val
}
connectedCallback(){
this.updateContent()
}
updateContent(){
if(!this.roomId){
this.replaceChildren()
return
}
if(!this.srcObject){
if(!this.#loadingPromise){
this.fetchTalks()
}
let loading = document.createElement("div")
loading.classList.add("loading")
loading.textContent = "Chargement des événements..."
this.replaceChildren(loading)
} else {
let childrens = []
for(let talk of this.srcObject){
let item = document.createElement("camp-talk")
item.srcObject = talk
let a = document.createElement("a")
a.href = talk.displayUrl
a.target = "_blank"
a.append(item)
childrens.push(a)
}
this.classList.toggle("empty", childrens.length == 0)
if(childrens.length == 0){
let empty = document.createElement("p")
empty.classList.add("empty")
empty.textContent = `Aucun événement à venir dans cette salle`
childrens.push(empty)
}
this.replaceChildren(...childrens)
}
this.classList.toggle("loading", !this.srcObject && this.#loadingPromise)
}
async fetchTalks(){
let prom = (async () => {
this.srcObject = await getUpcomingTalksForRoom(this.roomId)
this.#loadingPromise = null
this.updateContent()
})()
this.#loadingPromise = prom
await prom
}
static observedAttributes = ["room-id"]
attributeChangedCallback(name, oldVal, newVal){
switch(name){
case "room-id":
this.roomId = newVal
break;
}
}
}
customElements.define("camp-upcoming-talks", UpcomingTalksElement);