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