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refactored errors provider

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This commit is contained in:
Annika Hannig 2022-07-25 20:46:24 +02:00
parent d2fb819723
commit 0a81590b56
1 changed files with 7 additions and 15 deletions
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22
ui/src/app/context/errors.js
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@ -5,7 +5,6 @@
import { useState
, createContext
, useContext
, useRef
, useCallback
}
from 'react';
@ -15,8 +14,8 @@ const ErrorContext = createContext(null);
export const useErrors = () => useContext(ErrorContext);
export const useErrorHandler = () => {
const [handleRef] = useErrors();
return useCallback((err) => handleRef.current(err), [handleRef]);
const [handle] = useErrors();
return handle;
};
@ -27,20 +26,13 @@ export const ErrorsProvider = ({children}) => {
const [errors, setErrors] = useState([]);
// Handle prepends the error to the state.
// Use a ref to the handler function to prevent
// a rendering loop.
const handle = (err) => {
setErrors([err, ...errors]);
};
const handleRef = useRef(handle);
const handle = useCallback((err) => setErrors(
(errors) => ([err, ...errors])), []);
// Dismiss removes the error from the state
const dismiss = (err) => {
const filtered = errors.filter((e) => e !== err)
setErrors(filtered);
}
const dismiss = useCallback((err) => setErrors(
(errors) => errors.filter((e) => e !== err)), []);
const ctx = [handleRef, dismiss, errors];
const ctx = [handle, dismiss, errors];
return (
<ErrorContext.Provider value={ctx}>
{children}