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@material-ui/core

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React components that implement Google's Material Design.

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import _extends from "@babel/runtime/helpers/esm/extends"; import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray"; import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties"; import React from 'react'; import PropTypes from 'prop-types'; import ReactDOM from 'react-dom'; import { elementTypeAcceptingRef } from '@material-ui/utils'; import Drawer, { getAnchor, isHorizontal } from '../Drawer/Drawer'; import { duration } from '../styles/transitions'; import useTheme from '../styles/useTheme'; import { getTransitionProps } from '../transitions/utils'; import NoSsr from '../NoSsr'; import SwipeArea from './SwipeArea'; // This value is closed to what browsers are using internally to // trigger a native scroll. var UNCERTAINTY_THRESHOLD = 3; // px // We can only have one node at the time claiming ownership for handling the swipe. // Otherwise, the UX would be confusing. // That's why we use a singleton here. var nodeThatClaimedTheSwipe = null; // Exported for test purposes. export function reset() { nodeThatClaimedTheSwipe = null; } function calculateCurrentX(anchor, touches) { return anchor === 'right' ? document.body.offsetWidth - touches[0].pageX : touches[0].pageX; } function calculateCurrentY(anchor, touches) { return anchor === 'bottom' ? window.innerHeight - touches[0].clientY : touches[0].clientY; } function getMaxTranslate(horizontalSwipe, paperInstance) { return horizontalSwipe ? paperInstance.clientWidth : paperInstance.clientHeight; } function getTranslate(currentTranslate, startLocation, open, maxTranslate) { return Math.min(Math.max(open ? startLocation - currentTranslate : maxTranslate + startLocation - currentTranslate, 0), maxTranslate); } var disableSwipeToOpenDefault = typeof navigator !== 'undefined' && /iPad|iPhone|iPod/.test(navigator.userAgent); var transitionDurationDefault = { enter: duration.enteringScreen, exit: duration.leavingScreen }; var useEnhancedEffect = typeof window !== 'undefined' ? React.useLayoutEffect : React.useEffect; var SwipeableDrawer = React.forwardRef(function SwipeableDrawer(props, ref) { var _props$anchor = props.anchor, anchor = _props$anchor === void 0 ? 'left' : _props$anchor, _props$disableBackdro = props.disableBackdropTransition, disableBackdropTransition = _props$disableBackdro === void 0 ? false : _props$disableBackdro, _props$disableDiscove = props.disableDiscovery, disableDiscovery = _props$disableDiscove === void 0 ? false : _props$disableDiscove, _props$disableSwipeTo = props.disableSwipeToOpen, disableSwipeToOpen = _props$disableSwipeTo === void 0 ? disableSwipeToOpenDefault : _props$disableSwipeTo, hideBackdrop = props.hideBackdrop, _props$hysteresis = props.hysteresis, hysteresis = _props$hysteresis === void 0 ? 0.55 : _props$hysteresis, _props$minFlingVeloci = props.minFlingVelocity, minFlingVelocity = _props$minFlingVeloci === void 0 ? 400 : _props$minFlingVeloci, _props$ModalProps = props.ModalProps; _props$ModalProps = _props$ModalProps === void 0 ? {} : _props$ModalProps; var BackdropProps = _props$ModalProps.BackdropProps, ModalPropsProp = _objectWithoutProperties(_props$ModalProps, ["BackdropProps"]), onClose = props.onClose, onOpen = props.onOpen, open = props.open, _props$PaperProps = props.PaperProps, PaperProps = _props$PaperProps === void 0 ? {} : _props$PaperProps, SwipeAreaProps = props.SwipeAreaProps, _props$swipeAreaWidth = props.swipeAreaWidth, swipeAreaWidth = _props$swipeAreaWidth === void 0 ? 20 : _props$swipeAreaWidth, _props$transitionDura = props.transitionDuration, transitionDuration = _props$transitionDura === void 0 ? transitionDurationDefault : _props$transitionDura, _props$variant = props.variant, variant = _props$variant === void 0 ? 'temporary' : _props$variant, other = _objectWithoutProperties(props, ["anchor", "disableBackdropTransition", "disableDiscovery", "disableSwipeToOpen", "hideBackdrop", "hysteresis", "minFlingVelocity", "ModalProps", "onClose", "onOpen", "open", "PaperProps", "SwipeAreaProps", "swipeAreaWidth", "transitionDuration", "variant"]); var theme = useTheme(); var _React$useState = React.useState(false), _React$useState2 = _slicedToArray(_React$useState, 2), maybeSwiping = _React$useState2[0], setMaybeSwiping = _React$useState2[1]; var swipeInstance = React.useRef({ isSwiping: null }); var swipeAreaRef = React.useRef(); var backdropRef = React.useRef(); var paperRef = React.useRef(); var touchDetected = React.useRef(false); var openRef = React.useRef(open); // Use a ref so the open value used is always up to date inside useCallback. useEnhancedEffect(function () { openRef.current = open; }, [open]); var setPosition = React.useCallback(function (translate) { var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; var _options$mode = options.mode, mode = _options$mode === void 0 ? null : _options$mode, _options$changeTransi = options.changeTransition, changeTransition = _options$changeTransi === void 0 ? true : _options$changeTransi; var anchorRtl = getAnchor(theme, anchor); var rtlTranslateMultiplier = ['right', 'bottom'].indexOf(anchorRtl) !== -1 ? 1 : -1; var horizontalSwipe = isHorizontal(anchor); var transform = horizontalSwipe ? "translate(".concat(rtlTranslateMultiplier * translate, "px, 0)") : "translate(0, ".concat(rtlTranslateMultiplier * translate, "px)"); var drawerStyle = paperRef.current.style; drawerStyle.webkitTransform = transform; drawerStyle.transform = transform; var transition = ''; if (mode) { transition = theme.transitions.create('all', getTransitionProps({ timeout: transitionDuration }, { mode: mode })); } if (changeTransition) { drawerStyle.webkitTransition = transition; drawerStyle.transition = transition; } if (!disableBackdropTransition && !hideBackdrop) { var backdropStyle = backdropRef.current.style; backdropStyle.opacity = 1 - translate / getMaxTranslate(horizontalSwipe, paperRef.current); if (changeTransition) { backdropStyle.webkitTransition = transition; backdropStyle.transition = transition; } } }, [anchor, disableBackdropTransition, hideBackdrop, theme, transitionDuration]); var handleBodyTouchEnd = React.useCallback(function (event) { if (!touchDetected.current) { return; } nodeThatClaimedTheSwipe = null; touchDetected.current = false; setMaybeSwiping(false); // The swipe wasn't started. if (!swipeInstance.current.isSwiping) { swipeInstance.current.isSwiping = null; return; } swipeInstance.current.isSwiping = null; var anchorRtl = getAnchor(theme, anchor); var horizontal = isHorizontal(anchor); var current; if (horizontal) { current = calculateCurrentX(anchorRtl, event.changedTouches); } else { current = calculateCurrentY(anchorRtl, event.changedTouches); } var startLocation = horizontal ? swipeInstance.current.startX : swipeInstance.current.startY; var maxTranslate = getMaxTranslate(horizontal, paperRef.current); var currentTranslate = getTranslate(current, startLocation, openRef.current, maxTranslate); var translateRatio = currentTranslate / maxTranslate; if (openRef.current) { if (swipeInstance.current.velocity > minFlingVelocity || translateRatio > hysteresis) { onClose(); } else { // Reset the position, the swipe was aborted. setPosition(0, { mode: 'exit' }); } return; } if (swipeInstance.current.velocity < -minFlingVelocity || 1 - translateRatio > hysteresis) { onOpen(); } else { // Reset the position, the swipe was aborted. setPosition(getMaxTranslate(horizontal, paperRef.current), { mode: 'enter' }); } }, [anchor, hysteresis, minFlingVelocity, onClose, onOpen, setPosition, theme]); var handleBodyTouchMove = React.useCallback(function (event) { // the ref may be null when a parent component updates while swiping if (!paperRef.current || !touchDetected.current) { return; } var anchorRtl = getAnchor(theme, anchor); var horizontalSwipe = isHorizontal(anchor); var currentX = calculateCurrentX(anchorRtl, event.touches); var currentY = calculateCurrentY(anchorRtl, event.touches); // We don't know yet. if (swipeInstance.current.isSwiping == null) { var dx = Math.abs(currentX - swipeInstance.current.startX); var dy = Math.abs(currentY - swipeInstance.current.startY); // We are likely to be swiping, let's prevent the scroll event on iOS. if (dx > dy) { if (event.cancelable) { event.preventDefault(); } } var definitelySwiping = horizontalSwipe ? dx > dy && dx > UNCERTAINTY_THRESHOLD : dy > dx && dy > UNCERTAINTY_THRESHOLD; if (definitelySwiping === true || (horizontalSwipe ? dy > UNCERTAINTY_THRESHOLD : dx > UNCERTAINTY_THRESHOLD)) { swipeInstance.current.isSwiping = definitelySwiping; if (!definitelySwiping) { handleBodyTouchEnd(event); return; } // Shift the starting point. swipeInstance.current.startX = currentX; swipeInstance.current.startY = currentY; // Compensate for the part of the drawer displayed on touch start. if (!disableDiscovery && !openRef.current) { if (horizontalSwipe) { swipeInstance.current.startX -= swipeAreaWidth; } else { swipeInstance.current.startY -= swipeAreaWidth; } } } } if (!swipeInstance.current.isSwiping) { return; } var startLocation = horizontalSwipe ? swipeInstance.current.startX : swipeInstance.current.startY; var maxTranslate = getMaxTranslate(horizontalSwipe, paperRef.current); var translate = getTranslate(horizontalSwipe ? currentX : currentY, startLocation, openRef.current, maxTranslate); if (swipeInstance.current.lastTranslate === null) { swipeInstance.current.lastTranslate = translate; swipeInstance.current.lastTime = performance.now() + 1; } var velocity = (translate - swipeInstance.current.lastTranslate) / (performance.now() - swipeInstance.current.lastTime) * 1e3; // Low Pass filter. swipeInstance.current.velocity = swipeInstance.current.velocity * 0.4 + velocity * 0.6; swipeInstance.current.lastTranslate = translate; swipeInstance.current.lastTime = performance.now(); // We are swiping, let's prevent the scroll event on iOS. if (event.cancelable) { event.preventDefault(); } setPosition(translate); }, [setPosition, handleBodyTouchEnd, anchor, disableDiscovery, swipeAreaWidth, theme]); var handleBodyTouchStart = React.useCallback(function (event) { // We are not supposed to handle this touch move. if (nodeThatClaimedTheSwipe !== null && nodeThatClaimedTheSwipe !== swipeInstance.current) { return; } var anchorRtl = getAnchor(theme, anchor); var horizontalSwipe = isHorizontal(anchor); var currentX = calculateCurrentX(anchorRtl, event.touches); var currentY = calculateCurrentY(anchorRtl, event.touches); if (!openRef.current) { if (disableSwipeToOpen || event.target !== swipeAreaRef.current) { return; } if (horizontalSwipe) { if (currentX > swipeAreaWidth) { return; } } else if (currentY > swipeAreaWidth) { return; } } nodeThatClaimedTheSwipe = swipeInstance.current; swipeInstance.current.startX = currentX; swipeInstance.current.startY = currentY; setMaybeSwiping(true); if (!openRef.current && paperRef.current) { // The ref may be null when a parent component updates while swiping. setPosition(getMaxTranslate(horizontalSwipe, paperRef.current) + (disableDiscovery ? 20 : -swipeAreaWidth), { changeTransition: false }); } swipeInstance.current.velocity = 0; swipeInstance.current.lastTime = null; swipeInstance.current.lastTranslate = null; touchDetected.current = true; }, [setPosition, anchor, disableDiscovery, disableSwipeToOpen, swipeAreaWidth, theme]); React.useEffect(function () { if (variant === 'temporary') { document.body.addEventListener('touchstart', handleBodyTouchStart); document.body.addEventListener('touchmove', handleBodyTouchMove, { passive: false }); document.body.addEventListener('touchend', handleBodyTouchEnd); return function () { document.body.removeEventListener('touchstart', handleBodyTouchStart); document.body.removeEventListener('touchmove', handleBodyTouchMove, { passive: false }); document.body.removeEventListener('touchend', handleBodyTouchEnd); }; } return undefined; }, [variant, handleBodyTouchStart, handleBodyTouchMove, handleBodyTouchEnd]); React.useEffect(function () { return function () { // We need to release the lock. if (nodeThatClaimedTheSwipe === swipeInstance.current) { nodeThatClaimedTheSwipe = null; } }; }, []); React.useEffect(function () { if (!open) { setMaybeSwiping(false); } }, [open]); var handleBackdropRef = React.useCallback(function (instance) { // #StrictMode ready backdropRef.current = ReactDOM.findDOMNode(instance); }, []); var handlePaperRef = React.useCallback(function (instance) { // #StrictMode ready paperRef.current = ReactDOM.findDOMNode(instance); }, []); return React.createElement(React.Fragment, null, React.createElement(Drawer, _extends({ open: variant === 'temporary' && maybeSwiping ? true : open, variant: variant, ModalProps: _extends({ BackdropProps: _extends({}, BackdropProps, { ref: handleBackdropRef }) }, ModalPropsProp), PaperProps: _extends({}, PaperProps, { style: _extends({ pointerEvents: variant === 'temporary' && !open ? 'none' : '' }, PaperProps.style), ref: handlePaperRef }), anchor: anchor, transitionDuration: transitionDuration, onClose: onClose, ref: ref }, other)), !disableSwipeToOpen && variant === 'temporary' && React.createElement(NoSsr, null, React.createElement(SwipeArea, _extends({ anchor: anchor, ref: swipeAreaRef, width: swipeAreaWidth }, SwipeAreaProps)))); }); process.env.NODE_ENV !== "production" ? SwipeableDrawer.propTypes = { /** * @ignore */ anchor: PropTypes.oneOf(['left', 'top', 'right', 'bottom']), /** * Disable the backdrop transition. * This can improve the FPS on low-end devices. */ disableBackdropTransition: PropTypes.bool, /** * If `true`, touching the screen near the edge of the drawer will not slide in the drawer a bit * to promote accidental discovery of the swipe gesture. */ disableDiscovery: PropTypes.bool, /** * If `true`, swipe to open is disabled. This is useful in browsers where swiping triggers * navigation actions. Swipe to open is disabled on iOS browsers by default. */ disableSwipeToOpen: PropTypes.bool, /** * @ignore */ hideBackdrop: PropTypes.bool, /** * Affects how far the drawer must be opened/closed to change his state. * Specified as percent (0-1) of the width of the drawer */ hysteresis: PropTypes.number, /** * Defines, from which (average) velocity on, the swipe is * defined as complete although hysteresis isn't reached. * Good threshold is between 250 - 1000 px/s */ minFlingVelocity: PropTypes.number, /** * @ignore */ ModalProps: PropTypes.shape({ BackdropProps: PropTypes.shape({ component: elementTypeAcceptingRef }) }), /** * Callback fired when the component requests to be closed. * * @param {object} event The event source of the callback */ onClose: PropTypes.func.isRequired, /** * Callback fired when the component requests to be opened. * * @param {object} event The event source of the callback */ onOpen: PropTypes.func.isRequired, /** * If `true`, the drawer is open. */ open: PropTypes.bool.isRequired, /** * @ignore */ PaperProps: PropTypes.shape({ component: elementTypeAcceptingRef, style: PropTypes.object }), /** * Props applied to the swipe area element. */ SwipeAreaProps: PropTypes.object, /** * The width of the left most (or right most) area in pixels where the * drawer can be swiped open from. */ swipeAreaWidth: PropTypes.number, /** * The duration for the transition, in milliseconds. * You may specify a single timeout for all transitions, or individually with an object. */ transitionDuration: PropTypes.oneOfType([PropTypes.number, PropTypes.shape({ enter: PropTypes.number, exit: PropTypes.number })]), /** * @ignore */ variant: PropTypes.oneOf(['permanent', 'persistent', 'temporary']) } : void 0; export default SwipeableDrawer;