60 lines
1.7 KiB
TypeScript
60 lines
1.7 KiB
TypeScript
import { UIEventSource } from "../UIEventSource"
|
|
import { Utils } from "../../Utils"
|
|
|
|
/**
|
|
* Wrapper around the hash to create an UIEventSource from it
|
|
*/
|
|
export default class Hash {
|
|
public static hash: UIEventSource<string> = Hash.Get()
|
|
|
|
/**
|
|
* Gets the current string, including the pound sign if there is any
|
|
* @constructor
|
|
*/
|
|
public static Current(): string {
|
|
if (Hash.hash.data === undefined || Hash.hash.data === "") {
|
|
return ""
|
|
} else {
|
|
return "#" + Hash.hash.data
|
|
}
|
|
}
|
|
|
|
private static Get(): UIEventSource<string> {
|
|
if (Utils.runningFromConsole) {
|
|
return new UIEventSource<string>(undefined)
|
|
}
|
|
const hash = new UIEventSource<string>(window.location.hash.substr(1))
|
|
hash.addCallback((h) => {
|
|
if (h === "undefined") {
|
|
console.warn("Got a literal 'undefined' as hash, ignoring")
|
|
h = undefined
|
|
}
|
|
|
|
if (h === undefined || h === "") {
|
|
window.location.hash = ""
|
|
return
|
|
}
|
|
|
|
history.pushState({}, "")
|
|
window.location.hash = "#" + h
|
|
})
|
|
|
|
window.onhashchange = () => {
|
|
let newValue = window.location.hash.substr(1)
|
|
if (newValue === "") {
|
|
newValue = undefined
|
|
}
|
|
hash.setData(newValue)
|
|
}
|
|
|
|
window.addEventListener("popstate", (_) => {
|
|
let newValue = window.location.hash.substr(1)
|
|
if (newValue === "") {
|
|
newValue = undefined
|
|
}
|
|
hash.setData(newValue)
|
|
})
|
|
|
|
return hash
|
|
}
|
|
}
|