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import * as React from 'react';
import usePatchElement from '../../_util/hooks/usePatchElement';
import type { ModalFunc, ModalStaticFunctions } from '../confirm';
import { withConfirm, withError, withInfo, withSuccess, withWarn } from '../confirm';
import destroyFns from '../destroyFns';
import type { ModalFuncProps } from '../interface';
import type { HookModalRef } from './HookModal';
import HookModal from './HookModal';
let uuid = 0;
interface ElementsHolderRef {
patchElement: ReturnType<typeof usePatchElement>[1];
}
// Add `then` field for `ModalFunc` return instance.
export type ModalFuncWithPromise = (...args: Parameters<ModalFunc>) => ReturnType<ModalFunc> & {
then<T>(resolve: (confirmed: boolean) => T, reject: VoidFunction): Promise<T>;
};
export type HookAPI = Omit<Record<keyof ModalStaticFunctions, ModalFuncWithPromise>, 'warn'>;
const ElementsHolder = React.memo(
React.forwardRef<ElementsHolderRef>((_props, ref) => {
const [elements, patchElement] = usePatchElement();
React.useImperativeHandle(
ref,
() => ({
patchElement,
}),
[],
);
return <>{elements}</>;
}),
);
function useModal(): readonly [instance: HookAPI, contextHolder: React.ReactElement] {
const holderRef = React.useRef<ElementsHolderRef>(null);
// ========================== Effect ==========================
const [actionQueue, setActionQueue] = React.useState<VoidFunction[]>([]);
React.useEffect(() => {
if (actionQueue.length) {
const cloneQueue = [...actionQueue];
cloneQueue.forEach((action) => {
action();
});
setActionQueue([]);
}
}, [actionQueue]);
// =========================== Hook ===========================
const getConfirmFunc = React.useCallback(
(withFunc: (config: ModalFuncProps) => ModalFuncProps) =>
function hookConfirm(config: ModalFuncProps) {
uuid += 1;
const modalRef = React.createRef<HookModalRef>();
// Proxy to promise with `onClose`
let resolvePromise: (confirmed: boolean) => void;
const promise = new Promise<boolean>((resolve) => {
resolvePromise = resolve;
});
let silent = false;
let closeFunc: (() => void) | undefined;
const modal = (
<HookModal
key={`modal-${uuid}`}
config={withFunc(config)}
ref={modalRef}
afterClose={() => {
closeFunc?.();
}}
isSilent={() => silent}
onConfirm={(confirmed) => {
resolvePromise(confirmed);
}}
/>
);
closeFunc = holderRef.current?.patchElement(modal);
if (closeFunc) {
destroyFns.push(closeFunc);
}
const instance: ReturnType<ModalFuncWithPromise> = {
destroy: () => {
function destroyAction() {
modalRef.current?.destroy();
}
if (modalRef.current) {
destroyAction();
} else {
setActionQueue((prev) => [...prev, destroyAction]);
}
},
update: (newConfig) => {
function updateAction() {
modalRef.current?.update(newConfig);
}
if (modalRef.current) {
updateAction();
} else {
setActionQueue((prev) => [...prev, updateAction]);
}
},
then: (resolve) => {
silent = true;
return promise.then(resolve);
},
};
return instance;
},
[],
);
const fns = React.useMemo<HookAPI>(
() => ({
info: getConfirmFunc(withInfo),
success: getConfirmFunc(withSuccess),
error: getConfirmFunc(withError),
warning: getConfirmFunc(withWarn),
confirm: getConfirmFunc(withConfirm),
}),
[],
);
return [fns, <ElementsHolder key="modal-holder" ref={holderRef} />] as const;
}
export default useModal;
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