36 lines
795 B
JavaScript
36 lines
795 B
JavaScript
import LZString from "lz-string";
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export function read() {
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const hash = document.location.hash.slice(1);
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if (!hash) {
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return {};
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}
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// backwards support for old json encoded URIComponent
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const decode =
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hash.indexOf("%7B%22") !== -1
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? decodeURIComponent
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: LZString.decompressFromEncodedURIComponent;
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try {
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return JSON.parse(decode(hash));
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} catch (_) {
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return {};
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}
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}
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export function replace(state) {
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const hash = LZString.compressToEncodedURIComponent(JSON.stringify(state));
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if (
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typeof URL === "function" &&
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typeof history === "object" &&
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typeof history.replaceState === "function"
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) {
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const url = new URL(location);
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url.hash = hash;
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history.replaceState(null, null, url);
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} else {
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location.hash = hash;
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}
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}
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