Gesture Driven Modal Sheet

An iOS-style gesture driven modal sheet built with React Aria Components, Framer Motion, and Tailwind CSS.

Example#

import {animate, AnimatePresence, motion, useMotionTemplate, useMotionValue, useMotionValueEvent, useTransform} from 'framer-motion';
import {Button, Dialog, Heading, Modal, ModalOverlay} from 'react-aria-components';
import {useState} from 'react';

// Wrap React Aria modal components so they support framer-motion values.
const MotionModal = motion(Modal);
const MotionModalOverlay = motion(ModalOverlay);

const inertiaTransition = {
  type: 'inertia' as const,
  bounceStiffness: 300,
  bounceDamping: 40,
  timeConstant: 300
};

const staticTransition = {
  duration: 0.5,
  ease: [0.32, 0.72, 0, 1]
};

const SHEET_MARGIN = 34;
const SHEET_RADIUS = 12;

const root = document.body.firstChild as HTMLElement;

function Sheet() {
  let [isOpen, setOpen] = useState(false);
  let h = window.innerHeight - SHEET_MARGIN;
  let y = useMotionValue(h);
  let bgOpacity = useTransform(y, [0, h], [0.4, 0]);
  let bg = useMotionTemplate`rgba(0, 0, 0, ${bgOpacity})`;

  // Scale the body down and adjust the border radius when the sheet is open.
  let bodyScale = useTransform(
    y,
    [0, h],
    [(window.innerWidth - SHEET_MARGIN) / window.innerWidth, 1]
  );
  let bodyTranslate = useTransform(y, [0, h], [SHEET_MARGIN - SHEET_RADIUS, 0]);
  let bodyBorderRadius = useTransform(y, [0, h], [SHEET_RADIUS, 0]);

  useMotionValueEvent(bodyScale, 'change', (v) => root.style.scale = `${v}`);
  useMotionValueEvent(
    bodyTranslate,
    'change',
    (v) => root.style.translate = `0 ${v}px`
  );
  useMotionValueEvent(
    bodyBorderRadius,
    'change',
    (v) => root.style.borderRadius = `${v}px`
  );

  return (
    <>
      <Button
        className="text-blue-600 text-lg font-semibold outline-none rounded bg-transparent border-none pressed:text-blue-700 focus-visible:ring"
        onPress={() => setOpen(true)}
      >
        Open sheet
      </Button>
      <AnimatePresence>
        {isOpen && (
          <MotionModalOverlay
            // Force the modal to be open when AnimatePresence renders it.
            isOpen
            onOpenChange={setOpen}
            className="fixed inset-0 z-10"
            style={{ backgroundColor: bg as any }}
          >
            <MotionModal
              className="bg-[--page-background] absolute bottom-0 w-full rounded-t-xl shadow-lg will-change-transform"
              initial={{ y: h }}
              animate={{ y: 0 }}
              exit={{ y: h }}
              transition={staticTransition}
              style={{
                y,
                top: SHEET_MARGIN,
                // Extra padding at the bottom to account for rubber band scrolling.
                paddingBottom: window.screen.height
              }}
              drag="y"
              dragConstraints={{ top: 0 }}
              onDragEnd={(e, { offset, velocity }) => {
                if (offset.y > window.innerHeight * 0.75 || velocity.y > 10) {
                  setOpen(false);
                } else {
                  animate(y, 0, { ...inertiaTransition, min: 0, max: 0 });
                }
              }}
            >
              {/* drag affordance */}
              <div className="mx-auto w-12 mt-2 h-1.5 rounded-full bg-gray-400" />
              <Dialog className="px-4 pb-4 outline-none">
                <div className="flex justify-end">
                  <Button
                    className="text-blue-600 text-lg font-semibold mb-8 outline-none rounded bg-transparent border-none pressed:text-blue-700 focus-visible:ring"
                    onPress={() => setOpen(false)}
                  >
                    Done
                  </Button>
                </div>
                <Heading slot="title" className="text-3xl font-semibold mb-4">
                  Modal sheet
                </Heading>
                <p className="text-lg mb-4">
                  This is a dialog with a custom modal overlay built with React
                  Aria Components and Framer Motion.
                </p>
                <p className="text-lg">
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit.
                  Aenean sit amet nisl blandit, pellentesque eros eu,
                  scelerisque eros. Sed cursus urna at nunc lacinia dapibus.
                </p>
              </Dialog>
            </MotionModal>
          </MotionModalOverlay>
        )}
      </AnimatePresence>
    </>
  );
}

import {
  animate,
  AnimatePresence,
  motion,
  useMotionTemplate,
  useMotionValue,
  useMotionValueEvent,
  useTransform
} from 'framer-motion';
import {
  Button,
  Dialog,
  Heading,
  Modal,
  ModalOverlay
} from 'react-aria-components';
import {useState} from 'react';

// Wrap React Aria modal components so they support framer-motion values.
const MotionModal = motion(Modal);
const MotionModalOverlay = motion(ModalOverlay);

const inertiaTransition = {
  type: 'inertia' as const,
  bounceStiffness: 300,
  bounceDamping: 40,
  timeConstant: 300
};

const staticTransition = {
  duration: 0.5,
  ease: [0.32, 0.72, 0, 1]
};

const SHEET_MARGIN = 34;
const SHEET_RADIUS = 12;

const root = document.body.firstChild as HTMLElement;

function Sheet() {
  let [isOpen, setOpen] = useState(false);
  let h = window.innerHeight - SHEET_MARGIN;
  let y = useMotionValue(h);
  let bgOpacity = useTransform(y, [0, h], [0.4, 0]);
  let bg = useMotionTemplate`rgba(0, 0, 0, ${bgOpacity})`;

  // Scale the body down and adjust the border radius when the sheet is open.
  let bodyScale = useTransform(
    y,
    [0, h],
    [
      (window.innerWidth - SHEET_MARGIN) /
      window.innerWidth,
      1
    ]
  );
  let bodyTranslate = useTransform(y, [0, h], [
    SHEET_MARGIN - SHEET_RADIUS,
    0
  ]);
  let bodyBorderRadius = useTransform(y, [0, h], [
    SHEET_RADIUS,
    0
  ]);

  useMotionValueEvent(
    bodyScale,
    'change',
    (v) => root.style.scale = `${v}`
  );
  useMotionValueEvent(
    bodyTranslate,
    'change',
    (v) => root.style.translate = `0 ${v}px`
  );
  useMotionValueEvent(
    bodyBorderRadius,
    'change',
    (v) => root.style.borderRadius = `${v}px`
  );

  return (
    <>
      <Button
        className="text-blue-600 text-lg font-semibold outline-none rounded bg-transparent border-none pressed:text-blue-700 focus-visible:ring"
        onPress={() => setOpen(true)}
      >
        Open sheet
      </Button>
      <AnimatePresence>
        {isOpen && (
          <MotionModalOverlay
            // Force the modal to be open when AnimatePresence renders it.
            isOpen
            onOpenChange={setOpen}
            className="fixed inset-0 z-10"
            style={{ backgroundColor: bg as any }}
          >
            <MotionModal
              className="bg-[--page-background] absolute bottom-0 w-full rounded-t-xl shadow-lg will-change-transform"
              initial={{ y: h }}
              animate={{ y: 0 }}
              exit={{ y: h }}
              transition={staticTransition}
              style={{
                y,
                top: SHEET_MARGIN,
                // Extra padding at the bottom to account for rubber band scrolling.
                paddingBottom: window.screen.height
              }}
              drag="y"
              dragConstraints={{ top: 0 }}
              onDragEnd={(e, { offset, velocity }) => {
                if (
                  offset.y > window.innerHeight * 0.75 ||
                  velocity.y > 10
                ) {
                  setOpen(false);
                } else {
                  animate(y, 0, {
                    ...inertiaTransition,
                    min: 0,
                    max: 0
                  });
                }
              }}
            >
              {/* drag affordance */}
              <div className="mx-auto w-12 mt-2 h-1.5 rounded-full bg-gray-400" />
              <Dialog className="px-4 pb-4 outline-none">
                <div className="flex justify-end">
                  <Button
                    className="text-blue-600 text-lg font-semibold mb-8 outline-none rounded bg-transparent border-none pressed:text-blue-700 focus-visible:ring"
                    onPress={() => setOpen(false)}
                  >
                    Done
                  </Button>
                </div>
                <Heading
                  slot="title"
                  className="text-3xl font-semibold mb-4"
                >
                  Modal sheet
                </Heading>
                <p className="text-lg mb-4">
                  This is a dialog with a custom modal
                  overlay built with React Aria Components
                  and Framer Motion.
                </p>
                <p className="text-lg">
                  Lorem ipsum dolor sit amet, consectetur
                  adipiscing elit. Aenean sit amet nisl
                  blandit, pellentesque eros eu, scelerisque
                  eros. Sed cursus urna at nunc lacinia
                  dapibus.
                </p>
              </Dialog>
            </MotionModal>
          </MotionModalOverlay>
        )}
      </AnimatePresence>
    </>
  );
}

import {
  animate,
  AnimatePresence,
  motion,
  useMotionTemplate,
  useMotionValue,
  useMotionValueEvent,
  useTransform
} from 'framer-motion';
import {
  Button,
  Dialog,
  Heading,
  Modal,
  ModalOverlay
} from 'react-aria-components';
import {useState} from 'react';

// Wrap React Aria modal components so they support framer-motion values.
const MotionModal =
  motion(Modal);
const MotionModalOverlay =
  motion(ModalOverlay);

const inertiaTransition =
  {
    type:
      'inertia' as const,
    bounceStiffness: 300,
    bounceDamping: 40,
    timeConstant: 300
  };

const staticTransition =
  {
    duration: 0.5,
    ease: [
      0.32,
      0.72,
      0,
      1
    ]
  };

const SHEET_MARGIN = 34;
const SHEET_RADIUS = 12;

const root = document
  .body
  .firstChild as HTMLElement;

function Sheet() {
  let [isOpen, setOpen] =
    useState(false);
  let h =
    window.innerHeight -
    SHEET_MARGIN;
  let y = useMotionValue(
    h
  );
  let bgOpacity =
    useTransform(y, [
      0,
      h
    ], [0.4, 0]);
  let bg =
    useMotionTemplate`rgba(0, 0, 0, ${bgOpacity})`;

  // Scale the body down and adjust the border radius when the sheet is open.
  let bodyScale =
    useTransform(
      y,
      [0, h],
      [
        (window
          .innerWidth -
          SHEET_MARGIN) /
        window
          .innerWidth,
        1
      ]
    );
  let bodyTranslate =
    useTransform(y, [
      0,
      h
    ], [
      SHEET_MARGIN -
      SHEET_RADIUS,
      0
    ]);
  let bodyBorderRadius =
    useTransform(y, [
      0,
      h
    ], [
      SHEET_RADIUS,
      0
    ]);

  useMotionValueEvent(
    bodyScale,
    'change',
    (v) =>
      root.style.scale =
        `${v}`
  );
  useMotionValueEvent(
    bodyTranslate,
    'change',
    (v) =>
      root.style
        .translate =
          `0 ${v}px`
  );
  useMotionValueEvent(
    bodyBorderRadius,
    'change',
    (v) =>
      root.style
        .borderRadius =
          `${v}px`
  );

  return (
    <>
      <Button
        className="text-blue-600 text-lg font-semibold outline-none rounded bg-transparent border-none pressed:text-blue-700 focus-visible:ring"
        onPress={() =>
          setOpen(true)}
      >
        Open sheet
      </Button>
      <AnimatePresence>
        {isOpen && (
          <MotionModalOverlay
            // Force the modal to be open when AnimatePresence renders it.
            isOpen
            onOpenChange={setOpen}
            className="fixed inset-0 z-10"
            style={{
              backgroundColor:
                bg as any
            }}
          >
            <MotionModal
              className="bg-[--page-background] absolute bottom-0 w-full rounded-t-xl shadow-lg will-change-transform"
              initial={{
                y: h
              }}
              animate={{
                y: 0
              }}
              exit={{
                y: h
              }}
              transition={staticTransition}
              style={{
                y,
                top:
                  SHEET_MARGIN,
                // Extra padding at the bottom to account for rubber band scrolling.
                paddingBottom:
                  window
                    .screen
                    .height
              }}
              drag="y"
              dragConstraints={{
                top: 0
              }}
              onDragEnd={(
                e,
                {
                  offset,
                  velocity
                }
              ) => {
                if (
                  offset
                      .y >
                    window
                        .innerHeight *
                      0.75 ||
                  velocity
                      .y >
                    10
                ) {
                  setOpen(
                    false
                  );
                } else {
                  animate(
                    y,
                    0,
                    {
                      ...inertiaTransition,
                      min:
                        0,
                      max:
                        0
                    }
                  );
                }
              }}
            >
              {/* drag affordance */}
              <div className="mx-auto w-12 mt-2 h-1.5 rounded-full bg-gray-400" />
              <Dialog className="px-4 pb-4 outline-none">
                <div className="flex justify-end">
                  <Button
                    className="text-blue-600 text-lg font-semibold mb-8 outline-none rounded bg-transparent border-none pressed:text-blue-700 focus-visible:ring"
                    onPress={() =>
                      setOpen(
                        false
                      )}
                  >
                    Done
                  </Button>
                </div>
                <Heading
                  slot="title"
                  className="text-3xl font-semibold mb-4"
                >
                  Modal
                  sheet
                </Heading>
                <p className="text-lg mb-4">
                  This is
                  a
                  dialog
                  with a
                  custom
                  modal
                  overlay
                  built
                  with
                  React
                  Aria
                  Components
                  and
                  Framer
                  Motion.
                </p>
                <p className="text-lg">
                  Lorem
                  ipsum
                  dolor
                  sit
                  amet,
                  consectetur
                  adipiscing
                  elit.
                  Aenean
                  sit
                  amet
                  nisl
                  blandit,
                  pellentesque
                  eros
                  eu,
                  scelerisque
                  eros.
                  Sed
                  cursus
                  urna at
                  nunc
                  lacinia
                  dapibus.
                </p>
              </Dialog>
            </MotionModal>
          </MotionModalOverlay>
        )}
      </AnimatePresence>
    </>
  );
}

Tailwind config#

This example uses the tailwindcss-react-aria-components plugin. Add it to your tailwind.config.js:

module.exports = {
  // ...
  plugins: [
    require('tailwindcss-react-aria-components')
  ]
};

module.exports = {
  // ...
  plugins: [
    require('tailwindcss-react-aria-components')
  ]
};

module.exports = {
  // ...
  plugins: [
    require(
      'tailwindcss-react-aria-components'
    )
  ]
};

Components#