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/*
This file is part of GNU Taler
(C) 2022 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import { AmountJson } from "@gnu-taler/taler-util";
export interface TextFieldHandler {
onInput?: SafeHandler<string>;
value: string;
error?: string | Error;
}
export interface AmountFieldHandler {
onInput?: SafeHandler<AmountJson>;
value: AmountJson;
error?: string | Error;
}
declare const __safe_handler: unique symbol;
export type SafeHandler<T> = {
<Req extends T>(req: Req): Promise<void>;
(): Promise<void>;
[__safe_handler]: true;
};
type UnsafeHandler<T> = ((p: T) => Promise<void>) | ((p: T) => void);
export function withSafe<T>(
handler: UnsafeHandler<T>,
onError: (e: Error) => void,
): SafeHandler<T> {
const sh = async function (p: T): Promise<void> {
try {
await handler(p);
} catch (e) {
if (e instanceof Error) {
onError(e);
} else {
onError(new Error(String(e)));
}
}
};
return sh as SafeHandler<T>;
}
export const nullFunction = async function (): Promise<void> {
//do nothing
} as SafeHandler<void>;
//FIXME: UI button should required SafeHandler but
//useStateComponent should not be required to create SafeHandlers
//so this need to be split in two:
// * ButtonHandlerUI => with i18n
// * ButtonHandlerLogic => without i18n
export interface ButtonHandler {
onClick?: SafeHandler<void>;
// error?: TalerError;
}
export interface ToggleHandler {
value?: boolean;
button: ButtonHandler;
}
export interface SelectFieldHandler {
onChange?: SafeHandler<string>;
error?: string;
value: string;
isDirty?: boolean;
list: Record<string, string>;
}
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