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244import * as React from 'react';
import { Cross2Icon } from '@radix-ui/react-icons';
import * as ToastPrimitive from '@radix-ui/react-toast';
interface ToastPayload {
title: string;
description: string;
status?: 'default' | 'success' | 'error';
duration?: number;
}
interface ToastContextValue {
(payload: ToastPayload): void;
success: (payload: ToastPayload) => void;
error: (payload: ToastPayload) => void;
}
const ToastContext = React.createContext<ToastContextValue | null>(null);
const ToastContextImpl = React.createContext<{
toastElementsMapRef: React.MutableRefObject<Map<string, HTMLLIElement>>;
sortToasts: () => void;
} | null>(null);
const ANIMATION_OUT_DURATION = 350;
const CheckmarkIcon = () => <div aria-hidden className="checkmark" />;
const ErrorIcon = () => <div aria-hidden className="error" />;
export const Toasts: React.FC<{ children: React.ReactNode }> = ({ children }) => {
const [toasts, setToasts] = React.useState<Map<string, ToastPayload>>(new Map());
const toastElementsMapRef = React.useRef<Map<string, HTMLLIElement>>(new Map());
const viewportRef = React.useRef<HTMLOListElement | null>(null);
const sortToasts = React.useCallback(() => {
const toastElements = Array.from(toastElementsMapRef.current).reverse();
const heights: number[] = [];
toastElements.forEach(([, toast], index) => {
if (!toast) return;
const height = toast.clientHeight;
heights.push(height);
const frontToastHeight = heights[0];
toast.setAttribute('data-front', String(index === 0));
toast.setAttribute('data-hidden', String(index > 2));
toast.style.setProperty('--index', String(index));
toast.style.setProperty('--height', `${height}px`);
toast.style.setProperty('--front-height', `${frontToastHeight}px`);
const hoverOffsetY = heights
.slice(0, index)
.reduce((res, next) => (res += next), 0);
toast.style.setProperty('--hover-offset-y', `-${hoverOffsetY}px`);
});
}, []);
const handleAddToast = React.useCallback((toast: ToastPayload) => {
setToasts((currentToasts) => {
const newMap = new Map(currentToasts);
newMap.set(String(Date.now()), {
...toast,
status: toast.status || 'default',
});
return newMap;
});
}, []);
const handleRemoveToast = React.useCallback((key: string) => {
setToasts((currentToasts) => {
const newMap = new Map(currentToasts);
newMap.delete(key);
return newMap;
});
}, []);
const handleDispatchDefault = React.useCallback(
(payload: ToastPayload) =>
handleAddToast({ ...payload, status: 'default' }),
[handleAddToast],
);
const handleDispatchSuccess = React.useCallback(
(payload: ToastPayload) =>
handleAddToast({ ...payload, status: 'success' }),
[handleAddToast],
);
const handleDispatchError = React.useCallback(
(payload: ToastPayload) => handleAddToast({ ...payload, status: 'error' }),
[handleAddToast],
);
React.useEffect(() => {
const viewport = viewportRef.current;
if (viewport) {
const handleFocus = () => {
toastElementsMapRef.current.forEach((toast) => {
toast.setAttribute('data-hovering', 'true');
});
};
const handleBlur = (event: FocusEvent) => {
if (
!viewport.contains(event.target as Node) ||
viewport === event.target
) {
toastElementsMapRef.current.forEach((toast) => {
toast.setAttribute('data-hovering', 'false');
});
}
};
viewport.addEventListener('pointermove', handleFocus);
viewport.addEventListener('pointerleave', handleBlur);
viewport.addEventListener('focusin', handleFocus);
viewport.addEventListener('focusout', handleBlur);
return () => {
viewport.removeEventListener('pointermove', handleFocus);
viewport.removeEventListener('pointerleave', handleBlur);
viewport.removeEventListener('focusin', handleFocus);
viewport.removeEventListener('focusout', handleBlur);
};
}
}, []);
React.useEffect(() => {
ToastManager.getInstance().setAddToastFunction(handleAddToast);
}, [handleAddToast]);
return (
<ToastContext.Provider
value={React.useMemo(
() =>
Object.assign(handleDispatchDefault, {
success: handleDispatchSuccess,
error: handleDispatchError,
}),
[handleDispatchDefault, handleDispatchSuccess, handleDispatchError],
)}
>
<ToastContextImpl.Provider
value={React.useMemo(
() => ({
toastElementsMapRef,
sortToasts,
}),
[sortToasts],
)}
>
<ToastPrimitive.Provider swipeDirection="right">
{children}
{Array.from(toasts).map(([key, toast]) => (
<Toast
key={key}
id={key}
toast={toast}
onOpenChange={(open) => {
if (!open) {
toastElementsMapRef.current.delete(key);
sortToasts();
setTimeout(() => {
handleRemoveToast(key);
}, ANIMATION_OUT_DURATION);
}
}}
/>
))}
<ToastPrimitive.Viewport
ref={viewportRef}
className="ToastViewport"
/>
</ToastPrimitive.Provider>
</ToastContextImpl.Provider>
</ToastContext.Provider>
);
};
class ToastManager {
private static instance: ToastManager;
private addToast: (toast: ToastPayload) => void = () => {};
private constructor() {}
public static getInstance(): ToastManager {
if (!ToastManager.instance) {
ToastManager.instance = new ToastManager();
}
return ToastManager.instance;
}
public setAddToastFunction(addToastFunction: (toast: ToastPayload) => void) {
this.addToast = addToastFunction;
}
public success(toast: ToastPayload) {
this.addToast({ ...toast, status: 'success' });
}
public error(toast: ToastPayload) {
this.addToast({ ...toast, status: 'error' });
}
public default(toast: ToastPayload) {
this.addToast({ ...toast, status: 'default' });
}
}
export const toast = ToastManager.getInstance();
const Toast: React.FC<{
toast: ToastPayload;
id: string;
onOpenChange: (open: boolean) => void;
}> = ({ toast, id, onOpenChange }) => {
const ref = React.useRef<HTMLLIElement | null>(null);
const { sortToasts, toastElementsMapRef } =
React.useContext(ToastContextImpl)!;
React.useLayoutEffect(() => {
if (ref.current) {
toastElementsMapRef.current.set(id, ref.current);
sortToasts();
}
}, [id, sortToasts, toastElementsMapRef]);
return (
<ToastPrimitive.Root
ref={ref}
type="foreground"
duration={toast.duration}
className="ToastRoot"
onOpenChange={onOpenChange}
>
<div className="ToastInner" data-status={toast.status}>
{toast.status === 'success' && <CheckmarkIcon />}
{toast.status === 'error' && <ErrorIcon />}
<ToastPrimitive.Title className="ToastTitle">{toast.title}</ToastPrimitive.Title>
<ToastPrimitive.Description className="ToastDescription">{toast.description}</ToastPrimitive.Description>
<ToastPrimitive.Close aria-label="Close" className="ToastClose">
<Cross2Icon />
</ToastPrimitive.Close>
</div>
</ToastPrimitive.Root>
);
};