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Commit 0a2bddd

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[FIX]: #1529 Watch Local Storage Values
1 parent 4bcbc11 commit 0a2bddd

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1 file changed

+29
-14
lines changed

1 file changed

+29
-14
lines changed

‎client/packages/lowcoder/src/comps/hooks/localStorageComp.ts‎

Lines changed: 29 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -13,21 +13,28 @@ const APP_STORE_NAMESPACE = "lowcoder_app_local_storage";
1313
const LocalStorageCompBase = withViewFn(
1414
simpleMultiComp({ values: stateComp<JSONObject>({}) }),
1515
(comp) => {
16-
const originStore = localStorage.getItem(APP_STORE_NAMESPACE) || "{}";
17-
let parseStore = {};
18-
try {
19-
parseStore = JSON.parse(originStore);
20-
} catch (e) {
21-
log.error("application local storage invalid");
22-
}
23-
16+
// add custom event listener to update values reactively
2417
useEffect(() => {
25-
const value = comp.children.values.value;
26-
if (!isEqual(value, parseStore)) {
27-
log.info(value, parseStore);
28-
comp.children.values.dispatchChangeValueAction(parseStore);
29-
}
30-
}, [parseStore]);
18+
const handler = () => {
19+
try {
20+
const raw = localStorage.getItem(APP_STORE_NAMESPACE) || "{}";
21+
const parsed = JSON.parse(raw);
22+
comp.children.values.dispatchChangeValueAction(parsed);
23+
} catch (e) {
24+
log.error("Failed to parse localStorage:", e);
25+
}
26+
};
27+
28+
// Add listener on mount
29+
window.addEventListener("lowcoder-localstorage-updated", handler);
30+
31+
// Run once on mount to initialize
32+
handler();
33+
34+
return () => {
35+
window.removeEventListener("lowcoder-localstorage-updated", handler);
36+
};
37+
}, []);
3138

3239
return null;
3340
}
@@ -62,6 +69,8 @@ LocalStorageComp = withMethodExposing(LocalStorageComp, [
6269
parseStore[key] = value;
6370
localStorage.setItem(APP_STORE_NAMESPACE, JSON.stringify(parseStore));
6471
comp.children.values.dispatchChangeValueAction(parseStore);
72+
73+
window.dispatchEvent(new CustomEvent("lowcoder-localstorage-updated"));
6574
} catch (e) {
6675
localStorage.setItem(APP_STORE_NAMESPACE, "{}");
6776
}
@@ -83,6 +92,9 @@ LocalStorageComp = withMethodExposing(LocalStorageComp, [
8392
delete parseStore[key];
8493
localStorage.setItem(APP_STORE_NAMESPACE, JSON.stringify(parseStore));
8594
comp.children.values.dispatchChangeValueAction(parseStore);
95+
96+
// Trigger update
97+
window.dispatchEvent(new CustomEvent("lowcoder-localstorage-updated"));
8698
} catch (e) {
8799
localStorage.setItem(APP_STORE_NAMESPACE, "{}");
88100
}
@@ -98,6 +110,9 @@ LocalStorageComp = withMethodExposing(LocalStorageComp, [
98110
execute: (comp) => {
99111
localStorage.removeItem(APP_STORE_NAMESPACE);
100112
comp.children.values.dispatchChangeValueAction({});
113+
114+
// Trigger update
115+
window.dispatchEvent(new CustomEvent("lowcoder-localstorage-updated"));
101116
},
102117
},
103118
]);

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