DatePicker: support SheetMobile for mobile

docs/examples/datepicker/main.tsx

@@ -14,7 +14,7 @@ export default function Example() {
           onChange={({ value }) => setDateValue(value)}
           value={dateValue}
         />
-      </Flex>{' '}
+      </Flex>
     </Box>
   );
 }

docs/examples/datepicker/mobile.tsx

@@ -0,0 +1,18 @@
+import { useState } from 'react';
+import { DeviceTypeProvider } from 'gestalt';
+import { DatePicker } from 'gestalt-datepicker';
+
+export default function Example() {
+  const [dateValue, setDateValue] = useState<Date | null>(new Date(1985, 6, 4));
+  return (
+    <DeviceTypeProvider deviceType="mobile">
+      <DatePicker
+        disableMobileUI={false}
+        helperText="Select a date"
+        id="main" label="Delivery date"
+        onChange={({ value }) => setDateValue(value)}
+        value={dateValue}
+      />
+    </DeviceTypeProvider>
+  );
+}

docs/examples/defaultlabelprovider/translations.tsx

@@ -23,6 +23,8 @@ const labels = {
     iconAccessibilityLabelSuccess: myI18nTranslator('Success'),
   },
   DatePicker: {
+    accessibilityDismissButtonLabel: myI18nTranslator('Dismiss date picker'),
+    dismissButton: myI18nTranslator('Close'),
     openCalendar: myI18nTranslator('Open calendar'),
     previousMonth: myI18nTranslator('Navigate to previou month'),
     nextMonth: myI18nTranslator('Navigate to next month'),

docs/pages/web/datepicker.tsx

@@ -58,6 +58,7 @@ import enabled from '../../examples/datepicker/enabled';
 import error from '../../examples/datepicker/error';
 import helperText from '../../examples/datepicker/helperText';
 import main from '../../examples/datepicker/main';
+import mobile from '../../examples/datepicker/mobile';
 import preselected from '../../examples/datepicker/preselected';
 import range from '../../examples/datepicker/range';
 import readOnly from '../../examples/datepicker/readOnly';
@@ -391,6 +392,22 @@ Read-only TextFields are used to present information to the user without allowin
             )}
           </CombinationNew>
         </MainSection.Subsection>
+
+        <MainSection.Subsection
+          description={`DatePicker requires [DeviceTypeProvider](/web/utilities/devicetypeprovider) to enable its mobile user interface. The example below shows the mobile platform UI and its implementation.
+
+For mobile, DatePicker is displayed in a SheetMobile.
+`}
+          title="Mobile"
+        >
+          <MainSection.Card
+            cardSize="lg"
+            sandpackExample={
+              <SandpackExample code={mobile} layout="mobileRow" name="Mobile example" />
+            }
+          />
+        </MainSection.Subsection>
+
         <MainSection.Subsection
           badge="experimental"
           description={`DatePicker consumes external handlers from [GlobalEventsHandlerProvider](/web/utilities/globaleventshandlerprovider).

packages/gestalt-datepicker/src/DatePicker.jsdom.test.tsx

@@ -1,14 +1,24 @@
 import { useState } from 'react';
 import { act, fireEvent, render, screen } from '@testing-library/react';
+import { DeviceTypeProvider } from 'gestalt';
 import DatePicker from './DatePicker';
 
 const initialDate = new Date(2018, 11, 14);
 
-function DatePickerWrap({ showMonthYearDropdown }: { showMonthYearDropdown?: boolean }) {
+function DatePickerWrap({
+  showMonthYearDropdown,
+  disableMobileUI,
+  label,
+}: {
+  showMonthYearDropdown?: boolean;
+  disableMobileUI?: boolean;
+  label?: string;
+}) {
   const [date, setDate] = useState<Date | null>(initialDate);
 
   return (
     <DatePicker
+      disableMobileUI={disableMobileUI}
       id="fake_id"
       onChange={({ value }: any) => setDate(value)}
       selectLists={showMonthYearDropdown ? ['year', 'month'] : undefined}
@@ -140,4 +150,18 @@
     expect(screen.queryAllByRole('option', { name: 'January' })).toHaveLength(1);
     expect(screen.queryAllByRole('option', { name: '2017' })).toHaveLength(1);
   });
+
+  test('Mobile Datepicker renders', async () => {
+    const { baseElement } = render(
+      <DeviceTypeProvider deviceType="mobile">
+        <DatePickerWrap disableMobileUI={false} label="select" />
+      </DeviceTypeProvider>,
+    );
+
+    fireEvent.focus(screen.getByDisplayValue('12/14/2018'));
+
+    expect(screen.getByText('Close')).toBeInTheDocument();
+
+    expect(baseElement).toMatchSnapshot();
+  });
 });

packages/gestalt-datepicker/src/DatePicker.tsx

@@ -1,9 +1,33 @@
-import { forwardRef, ReactElement, useEffect, useImperativeHandle, useRef } from 'react';
+import {
+  forwardRef,
+  Fragment,
+  ReactElement,
+  useEffect,
+  useImperativeHandle,
+  useRef,
+  useState,
+} from 'react';
 import { Locale } from 'date-fns/locale';
-import { useGlobalEventsHandler } from 'gestalt';
+import {
+  Button,
+  Flex,
+  Layer,
+  SheetMobile,
+  useDefaultLabel,
+  useDeviceType,
+  useGlobalEventsHandler,
+} from 'gestalt';
 import InternalDatePicker from './DatePicker/InternalDatePicker';
 
+interface Indexable {
+  index(): number;
+}
+
 export type Props = {
+  /**
+   * DatePicker can adapt to mobile devices to [SheetMobile](https://gestalt.pinterest.systems/web/sheetmobile). Mobile adaptation is disabled by default. Set to 'false' to enable SheetMobile in mobile devices. See the [mobile variant](https://gestalt.pinterest.systems/web/datepicker#Mobile) to learn more.
+   */
+  disableMobileUI?: boolean;
   /**
    *  When disabled, DatePicker looks inactive and cannot be interacted with. See the [disabled example](https://gestalt.pinterest.systems/web/datepicker#States) to learn more.
    */
@@ -66,6 +90,14 @@ export type Props = {
    * Placeholder text shown if the user has not yet input a value. The default placeholder value shows the date format for each locale, e.g. MM/DD/YYYY.
    */
   placeholder?: string;
+  /**
+   * Callback fired when SheetMobile's in & out animations end. See [SheetMobile's animation variant](https://gestalt.pinterest.systems/web/sheetmobile#Animation) to learn more.
+   */
+  mobileOnAnimationEnd?: (arg1: { animationState: 'in' | 'out' }) => void;
+  /**
+   * An object representing the zIndex value of the SheetMobile where DatePicker is built upon on mobile. Learn more about [zIndex classes](https://gestalt.pinterest.systems/web/zindex_classes)
+   */
+  mobileZIndex?: Indexable;
   /**
    * Required for date range selection. End date on a date range selection. See the [date range example](https://gestalt.pinterest.systems/web/datepicker#Date-range) to learn more.
    */
@@ -107,6 +139,7 @@ export type Props = {
 const DatePickerWithForwardRef = forwardRef<HTMLInputElement, Props>(function DatePicker(
   {
     disabled,
+    disableMobileUI = false,
     errorMessage,
     excludeDates,
     helperText,
@@ -117,6 +150,8 @@ const DatePickerWithForwardRef = forwardRef<HTMLInputElement, Props>(function Da
     localeData,
     maxDate,
     minDate,
+    mobileZIndex,
+    mobileOnAnimationEnd,
     name,
     nextRef,
     onChange,
@@ -139,10 +174,115 @@ const DatePickerWithForwardRef = forwardRef<HTMLInputElement, Props>(function Da
     datePickerHandlers: undefined,
   };
 
+  const { accessibilityDismissButtonLabel, dismissButton } = useDefaultLabel('DatePicker');
+
+  const [showMobileCalendar, setShowMobileCalendar] = useState<boolean>(false);
+
+  const deviceType = useDeviceType();
+  const isMobile = deviceType === 'mobile';
+
   useEffect(() => {
     if (datePickerHandlers?.onRender) datePickerHandlers?.onRender();
   }, [datePickerHandlers]);
 
+  if (isMobile && !disableMobileUI) {
+    return (
+      <Fragment>
+        <InternalDatePicker
+          ref={innerInputRef}
+          disabled={disabled}
+          errorMessage={errorMessage}
+          excludeDates={excludeDates}
+          helperText={helperText}
+          id={id}
+          idealDirection={idealDirection}
+          includeDates={includeDates}
+          inputOnly
+          label={label}
+          localeData={localeData}
+          maxDate={maxDate}
+          minDate={minDate}
+          name={name}
+          nextRef={nextRef}
+          onChange={onChange}
+          onFocus={() => setShowMobileCalendar(true)}
+          placeholder={placeholder}
+          rangeEndDate={rangeEndDate}
+          rangeSelector={rangeSelector}
+          rangeStartDate={rangeStartDate}
+          readOnly={readOnly}
+          selectLists={selectLists}
+          value={value}
+        />
+        {showMobileCalendar ? (
+          <Layer zIndex={mobileZIndex}>
+            <SheetMobile
+              footer={
+                <SheetMobile.DismissingElement>
+                  {({ onDismissStart }) => (
+                    <Flex
+                      alignItems="center"
+                      direction="column"
+                      gap={4}
+                      justifyContent="center"
+                      width="100%"
+                    >
+                      <Button
+                        accessibilityLabel={accessibilityDismissButtonLabel}
+                        color="gray"
+                        onClick={() => onDismissStart()}
+                        size="lg"
+                        text={dismissButton}
+                      />
+                    </Flex>
+                  )}
+                </SheetMobile.DismissingElement>
+              }
+              heading=""
+              onAnimationEnd={mobileOnAnimationEnd}
+              onDismiss={() => setShowMobileCalendar(false)}
+              padding="none"
+              showDismissButton={false}
+              size="auto"
+            >
+              <SheetMobile.DismissingElement>
+                {({ onDismissStart }) => (
+                  <Flex
+                    alignItems="center"
+                    direction="column"
+                    gap={4}
+                    justifyContent="center"
+                    width="100%"
+                  >
+                    <InternalDatePicker
+                      errorMessage={errorMessage}
+                      excludeDates={excludeDates}
+                      id={id}
+                      idealDirection={idealDirection}
+                      includeDates={includeDates}
+                      inline
+                      localeData={localeData}
+                      maxDate={maxDate}
+                      minDate={minDate}
+                      nextRef={nextRef}
+                      onChange={onChange}
+                      onSelect={() => onDismissStart()}
+                      rangeEndDate={rangeEndDate}
+                      rangeSelector={rangeSelector}
+                      rangeStartDate={rangeStartDate}
+                      selectLists={selectLists}
+                      value={value}
+                    />
+                  </Flex>
+                )}
+              </SheetMobile.DismissingElement>
+            </SheetMobile>
+          </Layer>
+        ) : null}
+      </Fragment>
+    );
+  }
+
   return (
     <InternalDatePicker
       ref={innerInputRef}

packages/gestalt-datepicker/src/DatePicker/DateInput.tsx

@@ -22,6 +22,7 @@ type InjectedProps = {
   onChange?: (event: React.ChangeEvent<HTMLInputElement>) => void;
   onClick?: () => void;
   onFocus?: (event: React.FocusEvent<HTMLInputElement>) => void;
+  onPassthroughFocus?: () => void;
   onKeyDown?: (event: React.KeyboardEvent<HTMLInputElement>) => void;
   placeholder?: string;
   readOnly?: boolean;
@@ -44,6 +45,7 @@ const DateInputWithForwardRef = forwardRef<HTMLInputElement, Props>(function Dat
     onClick,
     onBlur,
     onFocus,
+    onPassthroughFocus,
     onKeyDown,
     placeholder,
     readOnly,
@@ -77,6 +79,7 @@ const DateInputWithForwardRef = forwardRef<HTMLInputElement, Props>(function Dat
         onBlur={(data) => onBlur?.(data.event)}
         onChange={(data) => onChange?.(data.event)}
         onFocus={(data) => {
+          onPassthroughFocus?.();
           onFocus?.(data.event);
           onClick?.();
         }}
@@ -109,6 +112,7 @@ const DateInputWithForwardRef = forwardRef<HTMLInputElement, Props>(function Dat
           onBlur={(data) => onBlur?.(data.event)}
           onChange={(data) => onChange?.(data.event)}
           onFocus={(data) => {
+            onPassthroughFocus?.();
             onFocus?.(data.event);
             onClick?.();
           }}