refactor: move datepicker to lib

libs/form-component/package.json

@@ -17,18 +17,22 @@
     "build-storybook": "storybook build"
   },
   "dependencies": {
-    "classnames": "2.5.1"
+    "classnames": "2.5.1",
+    "date-fns": "^4.1.0",
+    "react-day-picker": "^9.14.0",
+    "react-number-format": "^5.4.5"
   },
   "peerDependencies": {
     "@digdir/designsystemet-react": "^1.11.1",
-    "classnames": "2.5.1",
+    "@navikt/aksel-icons": "^8.9.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"
   },
   "devDependencies": {
     "@chromatic-com/storybook": "^5.0.1",
     "@digdir/designsystemet-css": "1.11.1",
     "@digdir/designsystemet-react": "1.11.1",
+    "@navikt/aksel-icons": "8.9.0",
     "@storybook/addon-docs": "10.2.16",
     "@storybook/addon-links": "10.2.16",
     "@storybook/builder-vite": "10.2.16",
@@ -39,7 +43,11 @@
     "@types/react": "19.2.14",
     "@types/react-dom": "19.2.3",
     "@vitejs/plugin-react": "^5.0.0",
+    "classnames": "2.5.1",
+    "date-fns": "4.1.0",
     "jsdom": "^26.1.0",
+    "react-day-picker": "9.14.0",
+    "react-number-format": "5.4.5",
     "storybook": "^10.2.11",
     "typescript": "5.9.3",
     "typescript-plugin-css-modules": "5.2.0",

src/App/frontend/src/app-components/Datepicker/DatePickerCalendar.tsx → libs/form-component/src/app-components/Datepicker/DatePickerCalendar.tsx

@@ -1,9 +1,8 @@
-import React from 'react';
 import { DayPicker } from 'react-day-picker';
 import type { Matcher, MonthCaption } from 'react-day-picker';
 
-import styles from 'src/app-components/Datepicker/Calendar.module.css';
-import { getLocale } from 'src/app-components/Datepicker/utils/dateHelpers';
+import styles from './Calendar.module.css';
+import { getLocale } from './utils/dateHelpers';
 
 export interface CalendarDialogProps {
   id: string;

src/App/frontend/src/app-components/Datepicker/DatePickerInput.tsx → libs/form-component/src/app-components/Datepicker/DatePickerInput.tsx

@@ -5,14 +5,14 @@ import type { Ref } from 'react';
 import { Textfield } from '@digdir/designsystemet-react';
 import { format, isValid } from 'date-fns';
 
-import styles from 'src/app-components/Datepicker/Calendar.module.css';
+import styles from './Calendar.module.css';
 import {
   dateFormatCanBeNumericInReactPatternFormat,
   getFormatAsPatternFormat,
   getSaveFormattedDateString,
   strictParseFormat,
   strictParseISO,
-} from 'src/app-components/Datepicker/utils/dateHelpers';
+} from './utils/dateHelpers';
 
 export interface DatePickerInputProps {
   id: string;
@@ -25,7 +25,15 @@ export interface DatePickerInputProps {
 }
 
 function DatePickerInputRef(
-  { id, value, datepickerFormat, timeStamp, onValueChange, readOnly, autoComplete }: DatePickerInputProps,
+  {
+    id,
+    value,
+    datepickerFormat,
+    timeStamp,
+    onValueChange,
+    readOnly,
+    autoComplete,
+  }: DatePickerInputProps,
   ref: Ref<HTMLInputElement>,
 ) {
   const dateValue = strictParseISO(value);

libs/form-component/src/app-components/Datepicker/Datepicker.stories.tsx

@@ -0,0 +1,58 @@
+import { useState } from 'react';
+import type { MonthCaptionProps } from 'react-day-picker';
+
+import type { Meta, StoryObj } from '@storybook/react-vite';
+
+import 'react-day-picker/style.css';
+
+import { DatePickerControl } from './Datepicker';
+
+const NoopDropdownCaption = ({ calendarMonth }: MonthCaptionProps) => (
+  <div style={{ padding: 8, fontWeight: 600 }}>
+    {calendarMonth.date.toLocaleString('en', { month: 'long', year: 'numeric' })}
+  </div>
+);
+
+const meta = {
+  title: 'AppComponents/DatePickerControl',
+  component: DatePickerControl,
+} satisfies Meta<typeof DatePickerControl>;
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+const Wrapper = (args: React.ComponentProps<typeof DatePickerControl>) => {
+  const [value, setValue] = useState(args.value);
+  return <DatePickerControl {...args} value={value} onValueChange={setValue} />;
+};
+
+export const Preview: Story = {
+  args: {
+    id: 'datepicker-preview',
+    value: '2025-03-15',
+    dateFormat: 'dd.MM.yyyy',
+    locale: 'nb',
+    buttonAriaLabel: 'Open date picker',
+    calendarIconTitle: 'Calendar',
+    DropdownCaption: NoopDropdownCaption,
+  },
+  render: (args) => <Wrapper {...args} />,
+};
+
+export const ReadOnly: Story = {
+  args: {
+    ...Preview.args,
+    readOnly: true,
+  },
+  render: (args) => <Wrapper {...args} />,
+};
+
+export const WithMinMax: Story = {
+  args: {
+    ...Preview.args,
+    minDate: new Date('2025-01-01'),
+    maxDate: new Date('2025-12-31'),
+  },
+  render: (args) => <Wrapper {...args} />,
+};

src/App/frontend/src/app-components/Datepicker/Datepicker.tsx → libs/form-component/src/app-components/Datepicker/Datepicker.tsx

@@ -4,12 +4,12 @@ import type { MonthCaption } from 'react-day-picker';
 import { CalendarIcon } from '@navikt/aksel-icons';
 import { isValid as isValidDate } from 'date-fns';
 
-import styles from 'src/app-components/Datepicker/Calendar.module.css';
-import { DatePickerCalendar } from 'src/app-components/Datepicker/DatePickerCalendar';
-import { DatePickerDialog } from 'src/app-components/Datepicker/DatepickerDialog';
-import { DatePickerInput } from 'src/app-components/Datepicker/DatePickerInput';
-import { getSaveFormattedDateString } from 'src/app-components/Datepicker/utils/dateHelpers';
-import { Flex } from 'src/app-components/Flex/Flex';
+import { Flex } from '../Flex/Flex';
+import styles from './Calendar.module.css';
+import { DatePickerCalendar } from './DatePickerCalendar';
+import { DatePickerDialog } from './DatepickerDialog';
+import { DatePickerInput } from './DatePickerInput';
+import { getSaveFormattedDateString } from './utils/dateHelpers';
 
 export type DatePickerControlProps = {
   id: string;
@@ -60,11 +60,7 @@ export const DatePickerControl: React.FC<DatePickerControlProps> = ({
   };
 
   return (
-    <Flex
-      container
-      item
-      size={{ xs: 12 }}
-    >
+    <Flex container item size={{ xs: 12 }}>
       <div className={styles.calendarInputWrapper}>
         <DatePickerInput
           ref={inputRef}

src/App/frontend/src/app-components/Datepicker/DatepickerDialog.tsx → libs/form-component/src/app-components/Datepicker/DatepickerDialog.tsx

@@ -1,10 +1,10 @@
-import React, { createContext, useContext, useEffect, useRef } from 'react';
+import { createContext, useContext, useEffect, useRef } from 'react';
 import type { PropsWithChildren, ReactNode } from 'react';
 
 import { Dialog, Popover } from '@digdir/designsystemet-react';
 
-import styles from 'src/app-components/Datepicker/Calendar.module.css';
-import { useIsMobile } from 'src/app-components/hooks/useDeviceWidths';
+import { useIsMobile } from '../hooks/useDeviceWidths';
+import styles from './Calendar.module.css';
 
 const DatePickerCloseContext = createContext<(() => void) | null>(null);
 

libs/form-component/src/app-components/Datepicker/index.ts

@@ -0,0 +1,28 @@
+export { DatePickerControl } from './Datepicker';
+export type { DatePickerControlProps } from './Datepicker';
+export { DatePickerCalendar } from './DatePickerCalendar';
+export type { CalendarDialogProps } from './DatePickerCalendar';
+export { DatePickerInput } from './DatePickerInput';
+export type { DatePickerInputProps } from './DatePickerInput';
+export { DatePickerDialog, useDatePickerClose } from './DatepickerDialog';
+export {
+  DateFlags,
+  DatepickerMinDateDefault,
+  DatepickerMaxDateDefault,
+  DatepickerFormatDefault,
+  PrettyDateAndTime,
+  getDateFormat,
+  getSaveFormattedDateString,
+  getDateConstraint,
+  formatISOString,
+  isDate,
+  getLocale,
+  getDateLib,
+  strictParseISO,
+  strictParseFormat,
+  dateFormatCanBeNumericInReactPatternFormat,
+  getFormatAsPatternFormat,
+  getMonths,
+  getYears,
+} from './utils/dateHelpers';
+export type { Token } from './utils/dateHelpers';

src/App/frontend/src/app-components/Datepicker/utils/dateHelpers.test.ts → libs/form-component/src/app-components/Datepicker/utils/dateHelpers.test.ts

@@ -1,4 +1,3 @@
-import { jest } from '@jest/globals';
 import { formatISO, isValid, parseISO } from 'date-fns';
 
 import {
@@ -10,18 +9,21 @@ import {
   getDateFormat,
   getSaveFormattedDateString,
   strictParseISO,
-} from 'src/app-components/Datepicker/utils/dateHelpers';
+} from './dateHelpers';
 
 describe('dateHelpers', () => {
   beforeAll(() => {
     /**
      * Mock todays date to be 2023-07-07T12:54:25.000Z
      */
-    jest.useFakeTimers({ now: 1688734465000 });
+    vi.useFakeTimers({ now: 1688734465000 });
   });
 
   describe('getDateFormat', () => {
-    const tests: { props: Parameters<typeof getDateFormat>; expected: ReturnType<typeof getDateFormat> }[] = [
+    const tests: {
+      props: Parameters<typeof getDateFormat>;
+      expected: ReturnType<typeof getDateFormat>;
+    }[] = [
       { props: ['YYYY-MM-DD'], expected: 'yyyy-MM-dd' },
       { props: ['DD/MM/YYYY'], expected: 'dd/MM/yyyy' },
       { props: ['DD.MM.YYYY'], expected: 'dd.MM.yyyy' },
@@ -127,7 +129,10 @@ describe('dateHelpers', () => {
   });
 
   describe('formatISOString', () => {
-    const tests: { props: Parameters<typeof formatISOString>; expected: ReturnType<typeof formatISOString> }[] = [
+    const tests: {
+      props: Parameters<typeof formatISOString>;
+      expected: ReturnType<typeof formatISOString>;
+    }[] = [
       { props: [undefined, 'dd/MM/yyyy'], expected: null },
       { props: ['2023-13-01', 'dd/MM/yyyy'], expected: null },
       { props: ['2023-10-41', 'dd/MM/yyyy'], expected: null },

src/App/frontend/src/app-components/Datepicker/utils/dateHelpers.ts → libs/form-component/src/app-components/Datepicker/utils/dateHelpers.ts

@@ -17,7 +17,7 @@ import {
 } from 'date-fns';
 import type { Locale } from 'date-fns/locale';
 
-import { locales } from 'src/app-components/Datepicker/utils/dateLocales';
+import { locales } from './dateLocales';
 
 export enum DateFlags {
   Today = 'today',
@@ -53,19 +53,26 @@ export function getDateFormat(format?: string, selectedLanguage = 'nb'): string
   if (format) {
     return convertLegacyFormat(format);
   }
-  return getLocale(selectedLanguage).formatLong?.date({ width: 'short' }) || DatepickerFormatDefault;
+  return (
+    getLocale(selectedLanguage).formatLong?.date({ width: 'short' }) || DatepickerFormatDefault
+  );
 }
 
 export function getSaveFormattedDateString(date: Date | null, timestamp: boolean) {
   if (date && isValid(date)) {
     return (
-      (!timestamp ? formatISO(date, { representation: 'date' }) : formatISO(date, { representation: 'complete' })) ?? ''
+      (!timestamp
+        ? formatISO(date, { representation: 'date' })
+        : formatISO(date, { representation: 'complete' })) ?? ''
     );
   }
   return null;
 }
 
-export function getDateConstraint(dateOrFlag: string | DateFlags | undefined, constraint: 'min' | 'max'): Date {
+export function getDateConstraint(
+  dateOrFlag: string | DateFlags | undefined,
+  constraint: 'min' | 'max',
+): Date {
   const shiftTime = constraint === 'min' ? startOfDay : endOfDay;
 
   if (dateOrFlag === DateFlags.Today) {
@@ -103,7 +110,11 @@ export function getDateConstraint(dateOrFlag: string | DateFlags | undefined, co
   }
 }
 
-export function formatISOString(isoString: string | undefined, format: string, locale?: Locale): string | null {
+export function formatISOString(
+  isoString: string | undefined,
+  format: string,
+  locale?: Locale,
+): string | null {
   const date = strictParseISO(isoString);
 
   if (date && isValid(date)) {
@@ -145,7 +156,10 @@ export function strictParseISO(isoString: string | undefined): Date | null {
  * this function requires that the parsed date when formatted using the same format is equal to the input.
  * This prevents the value in the Datepicker input from changing while typing.
  */
-export function strictParseFormat(formattedDate: string | undefined, formatString: string): Date | null {
+export function strictParseFormat(
+  formattedDate: string | undefined,
+  formatString: string,
+): Date | null {
   if (!formattedDate) {
     return null;
   }

src/App/frontend/src/app-components/Flex/Flex.tsx → libs/form-component/src/app-components/Flex/Flex.tsx

@@ -3,8 +3,17 @@ import type { CSSProperties, ElementType, PropsWithChildren } from 'react';
 
 import cn from 'classnames';
 
-import classes from 'src/app-components/Flex/Flex.module.css';
-import type { IGridStyling } from 'src/app-components/types';
+import classes from './Flex.module.css';
+
+type GridSize = 'auto' | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12;
+
+export interface IGridStyling {
+  xs?: GridSize;
+  sm?: GridSize;
+  md?: GridSize;
+  lg?: GridSize;
+  xl?: GridSize;
+}
 
 type Spacing = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10;
 

libs/form-component/src/app-components/Flex/index.ts

@@ -0,0 +1,2 @@
+export { Flex } from './Flex';
+export type { IGridStyling } from './Flex';

libs/form-component/src/app-components/hooks/index.ts

@@ -0,0 +1,7 @@
+export {
+  useIsMini,
+  useIsMobile,
+  useIsTablet,
+  useBrowserWidth,
+  breakpoints,
+} from './useDeviceWidths';

src/App/frontend/src/app-components/hooks/useDeviceWidths.ts → libs/form-component/src/app-components/hooks/useDeviceWidths.ts

@@ -10,7 +10,8 @@ type Condition = (width: number) => boolean;
 
 const conditionIsMini: Condition = (width) => width <= breakpoints.mini;
 const conditionIsMobile: Condition = (width) => width <= breakpoints.mobile;
-const conditionIsTablet: Condition = (width) => width > breakpoints.mobile && width <= breakpoints.tablet;
+const conditionIsTablet: Condition = (width) =>
+  width > breakpoints.mobile && width <= breakpoints.tablet;
 
 export function useIsMini() {
   return useBrowserWidth(conditionIsMini);

libs/form-component/src/app-components/index.ts

@@ -1,5 +1,8 @@
 export * from './AccordionItem';
 export * from './Button';
 export * from './Card';
+export * from './Datepicker';
+export * from './Flex';
+export * from './hooks';
 export * from './DisplayDate';
 export * from './Spinner';

src/App/frontend/monorepo-changed-paths.txt

@@ -2,7 +2,7 @@
 .github/
 .husky/
 .yarn/patches/jsdom-npm-26.1.0-3857255f02.patch
-.yarn/releases/yarn-4.14.1.cjs
+.yarn/releases/yarn-4.12.0.cjs
 .yarnrc.yml
 LICENSE.md
 adr/001-component-library.md
@@ -16,7 +16,8 @@ src/app-components/Accordion/
 src/app-components/Button/Button.tsx
 src/app-components/Card/
 src/app-components/Date/
-src/app-components/Datepicker/DatePickerHelpers.ts
+src/app-components/Datepicker/
+src/app-components/Flex/
 src/app-components/Text/DisplayText.tsx
 src/app-components/loading/Spinner/Spinner.tsx
 src/codegen/schemas/layout-sets.schema.v1.ts