2018-03-29 12:14:46 +02:00

56 lines
1.2 KiB
TypeScript

import { AnimeNotifier } from "../AnimeNotifier"
import { Diff } from "../Diff"
// Load more
export async function loadMore(arn: AnimeNotifier, button: HTMLButtonElement) {
// Prevent firing this event multiple times
if(arn.isLoading || button.disabled || button.classList.contains("hidden")) {
return
}
arn.loading(true)
button.disabled = true
let target = arn.app.find("load-more-target")
let index = button.dataset.index
try {
let response = await fetch("/_" + arn.app.currentPath + "/from/" + index, {
credentials: "same-origin"
})
if(!response.ok) {
throw response.statusText
}
let newIndex = response.headers.get("X-LoadMore-Index")
// End of data?
if(newIndex === "-1") {
button.disabled = true
button.classList.add("hidden")
} else {
button.dataset.index = newIndex
}
let body = await response.text()
let tmp = document.createElement(target.tagName)
tmp.innerHTML = body
let children = [...tmp.childNodes]
Diff.mutations.queue(() => {
for(let child of children) {
target.appendChild(child)
}
arn.app.emit("DOMContentLoaded")
})
} catch(err) {
arn.statusMessage.showError(err)
} finally {
arn.loading(false)
button.disabled = false
}
}