274 lines
9.8 KiB
JavaScript
274 lines
9.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _react = _interopRequireDefault(require("react"));
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var _propTypes = _interopRequireDefault(require("prop-types"));
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var _classnames = _interopRequireDefault(require("classnames"));
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var _CarouselItem = _interopRequireDefault(require("./CarouselItem"));
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var _CarouselContext = require("./CarouselContext");
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var _utils = require("./utils");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
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const SWIPE_THRESHOLD = 40;
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const propTypes = {
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/** the current active slide of the carousel */
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activeIndex: _propTypes.default.number,
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/** a function which should advance the carousel to the next slide (via activeIndex) */
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next: _propTypes.default.func.isRequired,
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/** a function which should advance the carousel to the previous slide (via activeIndex) */
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previous: _propTypes.default.func.isRequired,
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/** controls if the left and right arrow keys should control the carousel */
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keyboard: _propTypes.default.bool,
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/** If set to "hover", pauses the cycling of the carousel on mouseenter and resumes the cycling of the carousel on
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* mouseleave. If set to false, hovering over the carousel won't pause it.
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*/
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pause: _propTypes.default.oneOf(['hover', false]),
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/** Autoplays the carousel after the user manually cycles the first item. If "carousel", autoplays the carousel on load. */
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ride: _propTypes.default.oneOf(['carousel']),
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/** the interval at which the carousel automatically cycles */
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interval: _propTypes.default.oneOfType([_propTypes.default.number, _propTypes.default.string, _propTypes.default.bool]),
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children: _propTypes.default.array,
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/** called when the mouse enters the Carousel */
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mouseEnter: _propTypes.default.func,
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/** called when the mouse exits the Carousel */
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mouseLeave: _propTypes.default.func,
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/** controls whether the slide animation on the Carousel works or not */
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slide: _propTypes.default.bool,
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/** make the controls, indicators and captions dark on the Carousel */
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dark: _propTypes.default.bool,
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fade: _propTypes.default.bool,
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/** Change underlying component's CSS base class name */
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cssModule: _propTypes.default.object,
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/** Add custom class */
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className: _propTypes.default.string,
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/** Enable touch support */
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enableTouch: _propTypes.default.bool
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};
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const propsToOmit = Object.keys(propTypes);
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const defaultProps = {
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interval: 5000,
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pause: 'hover',
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keyboard: true,
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slide: true,
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enableTouch: true,
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fade: false
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};
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class Carousel extends _react.default.Component {
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constructor(props) {
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super(props);
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this.handleKeyPress = this.handleKeyPress.bind(this);
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this.renderItems = this.renderItems.bind(this);
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this.hoverStart = this.hoverStart.bind(this);
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this.hoverEnd = this.hoverEnd.bind(this);
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this.handleTouchStart = this.handleTouchStart.bind(this);
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this.handleTouchEnd = this.handleTouchEnd.bind(this);
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this.touchStartX = 0;
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this.touchStartY = 0;
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this.state = {
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activeIndex: this.props.activeIndex,
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direction: 'end',
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indicatorClicked: false
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};
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}
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componentDidMount() {
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// Set up the cycle
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if (this.props.ride === 'carousel') {
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this.setInterval();
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}
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// TODO: move this to the specific carousel like bootstrap. Currently it will trigger ALL carousels on the page.
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document.addEventListener('keyup', this.handleKeyPress);
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}
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static getDerivedStateFromProps(nextProps, prevState) {
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let newState = null;
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let {
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activeIndex,
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direction,
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indicatorClicked
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} = prevState;
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if (nextProps.activeIndex !== activeIndex) {
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// Calculate the direction to turn
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if (nextProps.activeIndex === activeIndex + 1) {
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direction = 'end';
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} else if (nextProps.activeIndex === activeIndex - 1) {
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direction = 'start';
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} else if (nextProps.activeIndex < activeIndex) {
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direction = indicatorClicked ? 'start' : 'end';
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} else if (nextProps.activeIndex !== activeIndex) {
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direction = indicatorClicked ? 'end' : 'start';
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}
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newState = {
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activeIndex: nextProps.activeIndex,
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direction,
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indicatorClicked: false
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};
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}
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return newState;
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}
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componentDidUpdate(prevProps, prevState) {
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if (prevState.activeIndex === this.state.activeIndex) return;
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this.setInterval();
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}
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componentWillUnmount() {
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this.clearInterval();
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document.removeEventListener('keyup', this.handleKeyPress);
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}
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handleKeyPress(evt) {
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if (this.props.keyboard) {
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if (evt.keyCode === 37) {
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this.props.previous();
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} else if (evt.keyCode === 39) {
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this.props.next();
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}
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}
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}
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handleTouchStart(e) {
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if (!this.props.enableTouch) {
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return;
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}
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this.touchStartX = e.changedTouches[0].screenX;
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this.touchStartY = e.changedTouches[0].screenY;
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}
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handleTouchEnd(e) {
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if (!this.props.enableTouch) {
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return;
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}
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const currentX = e.changedTouches[0].screenX;
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const currentY = e.changedTouches[0].screenY;
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const diffX = Math.abs(this.touchStartX - currentX);
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const diffY = Math.abs(this.touchStartY - currentY);
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// Don't swipe if Y-movement is bigger than X-movement
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if (diffX < diffY) {
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return;
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}
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if (diffX < SWIPE_THRESHOLD) {
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return;
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}
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if (currentX < this.touchStartX) {
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this.props.next();
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} else {
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this.props.previous();
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}
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}
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getContextValue() {
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return {
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direction: this.state.direction
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};
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}
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setInterval() {
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// make sure not to have multiple intervals going...
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this.clearInterval();
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if (this.props.interval) {
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this.cycleInterval = setInterval(() => {
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this.props.next();
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}, parseInt(this.props.interval, 10));
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}
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}
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clearInterval() {
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clearInterval(this.cycleInterval);
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}
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hoverStart(...args) {
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if (this.props.pause === 'hover') {
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this.clearInterval();
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}
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if (this.props.mouseEnter) {
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this.props.mouseEnter(...args);
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}
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}
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hoverEnd(...args) {
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if (this.props.pause === 'hover') {
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this.setInterval();
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}
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if (this.props.mouseLeave) {
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this.props.mouseLeave(...args);
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}
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}
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renderItems(carouselItems, className) {
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const {
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slide
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} = this.props;
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return /*#__PURE__*/_react.default.createElement("div", {
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className: className
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}, carouselItems.map((item, index) => {
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const isIn = index === this.state.activeIndex;
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return /*#__PURE__*/_react.default.cloneElement(item, {
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in: isIn,
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slide: slide
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});
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}));
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}
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render() {
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const {
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cssModule,
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slide,
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className,
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dark,
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fade
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} = this.props;
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const attributes = (0, _utils.omit)(this.props, propsToOmit);
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const outerClasses = (0, _utils.mapToCssModules)((0, _classnames.default)(className, 'carousel', fade && 'carousel-fade', slide && 'slide', dark && 'carousel-dark'), cssModule);
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const innerClasses = (0, _utils.mapToCssModules)((0, _classnames.default)('carousel-inner'), cssModule);
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// filter out booleans, null, or undefined
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const children = this.props.children.filter(child => child !== null && child !== undefined && typeof child !== 'boolean');
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const slidesOnly = children.every(child => child.type === _CarouselItem.default);
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// Rendering only slides
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if (slidesOnly) {
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return /*#__PURE__*/_react.default.createElement("div", _extends({}, attributes, {
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className: outerClasses,
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onMouseEnter: this.hoverStart,
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onMouseLeave: this.hoverEnd
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}), /*#__PURE__*/_react.default.createElement(_CarouselContext.CarouselContext.Provider, {
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value: this.getContextValue()
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}, this.renderItems(children, innerClasses)));
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}
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// Rendering slides and controls
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if (children[0] instanceof Array) {
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const carouselItems = children[0];
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const controlLeft = children[1];
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const controlRight = children[2];
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return /*#__PURE__*/_react.default.createElement("div", _extends({}, attributes, {
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className: outerClasses,
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onMouseEnter: this.hoverStart,
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onMouseLeave: this.hoverEnd
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}), /*#__PURE__*/_react.default.createElement(_CarouselContext.CarouselContext.Provider, {
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value: this.getContextValue()
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}, this.renderItems(carouselItems, innerClasses), controlLeft, controlRight));
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}
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// Rendering indicators, slides and controls
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const indicators = children[0];
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const wrappedOnClick = e => {
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if (typeof indicators.props.onClickHandler === 'function') {
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this.setState({
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indicatorClicked: true
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}, () => indicators.props.onClickHandler(e));
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}
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};
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const wrappedIndicators = /*#__PURE__*/_react.default.cloneElement(indicators, {
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onClickHandler: wrappedOnClick
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});
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const carouselItems = children[1];
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const controlLeft = children[2];
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const controlRight = children[3];
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return /*#__PURE__*/_react.default.createElement("div", _extends({}, attributes, {
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className: outerClasses,
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onMouseEnter: this.hoverStart,
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onMouseLeave: this.hoverEnd,
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onTouchStart: this.handleTouchStart,
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onTouchEnd: this.handleTouchEnd
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}), /*#__PURE__*/_react.default.createElement(_CarouselContext.CarouselContext.Provider, {
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value: this.getContextValue()
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}, wrappedIndicators, this.renderItems(carouselItems, innerClasses), controlLeft, controlRight));
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}
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}
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Carousel.propTypes = propTypes;
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Carousel.defaultProps = defaultProps;
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var _default = Carousel;
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exports.default = _default; |