konobangu/apps/webui/src/components/ui/tanstack-form.tsx

144 lines
3.1 KiB
TypeScript

import { Slot } from "@radix-ui/react-slot";
import * as React from "react";
import { Label } from "@/components/ui/label";
import { cn } from "@/presentation/utils";
import {
createFormHook,
createFormHookContexts,
useStore,
} from "@tanstack/react-form";
const {
fieldContext,
formContext,
useFieldContext: useFormFieldContext,
useFormContext,
} = createFormHookContexts();
const { useAppForm, withForm } = createFormHook({
fieldContext,
formContext,
fieldComponents: {
FormLabel,
FormControl,
FormDescription,
FormMessage,
FormItem,
},
formComponents: {},
});
type FormItemContextValue = {
id: string;
};
const FormItemContext = React.createContext<FormItemContextValue>(
{} as FormItemContextValue
);
function FormItem({ className, ...props }: React.ComponentProps<"div">) {
const id = React.useId();
return (
<FormItemContext.Provider value={{ id }}>
<div
data-slot="form-item"
className={cn("grid gap-2", className)}
{...props}
/>
</FormItemContext.Provider>
);
}
const useFieldContext = () => {
const { id } = React.useContext(FormItemContext);
const { name, store, ...fieldContext } = useFormFieldContext();
const errors = useStore(store, (state) => state.meta.errors);
if (!fieldContext) {
throw new Error("useFieldContext should be used within <FormItem>");
}
return {
id,
name,
formItemId: `${id}-form-item`,
formDescriptionId: `${id}-form-item-description`,
formMessageId: `${id}-form-item-message`,
errors,
store,
...fieldContext,
};
};
function FormLabel({
className,
...props
}: React.ComponentProps<typeof Label>) {
const { formItemId, errors } = useFieldContext();
return (
<Label
data-slot="form-label"
data-error={!!errors.length}
className={cn("data-[error=true]:text-destructive", className)}
htmlFor={formItemId}
{...props}
/>
);
}
function FormControl({ ...props }: React.ComponentProps<typeof Slot>) {
const { errors, formItemId, formDescriptionId, formMessageId } =
useFieldContext();
return (
<Slot
data-slot="form-control"
id={formItemId}
aria-describedby={
errors.length
? `${formDescriptionId} ${formMessageId}`
: `${formDescriptionId}`
}
aria-invalid={!!errors.length}
{...props}
/>
);
}
function FormDescription({ className, ...props }: React.ComponentProps<"p">) {
const { formDescriptionId } = useFieldContext();
return (
<p
data-slot="form-description"
id={formDescriptionId}
className={cn("text-muted-foreground text-sm", className)}
{...props}
/>
);
}
function FormMessage({ className, ...props }: React.ComponentProps<"p">) {
const { errors, formMessageId } = useFieldContext();
const body = errors.length
? String(errors.at(0)?.message ?? "")
: props.children;
if (!body) return null;
return (
<p
data-slot="form-message"
id={formMessageId}
className={cn("text-destructive text-sm", className)}
{...props}
>
{body}
</p>
);
}
export { useAppForm, useFormContext, useFieldContext, withForm };