reactstrap
Version:
React Bootstrap components
274 lines (267 loc) • 9.99 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _react = _interopRequireDefault(require("react"));
var _propTypes = _interopRequireDefault(require("prop-types"));
var _classnames = _interopRequireDefault(require("classnames"));
var _CarouselItem = _interopRequireDefault(require("./CarouselItem"));
var _CarouselContext = require("./CarouselContext");
var _utils = require("./utils");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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); }
const SWIPE_THRESHOLD = 40;
const propTypes = {
/** the current active slide of the carousel */
activeIndex: _propTypes.default.number,
/** a function which should advance the carousel to the next slide (via activeIndex) */
next: _propTypes.default.func.isRequired,
/** a function which should advance the carousel to the previous slide (via activeIndex) */
previous: _propTypes.default.func.isRequired,
/** controls if the left and right arrow keys should control the carousel */
keyboard: _propTypes.default.bool,
/** If set to "hover", pauses the cycling of the carousel on mouseenter and resumes the cycling of the carousel on
* mouseleave. If set to false, hovering over the carousel won't pause it.
*/
pause: _propTypes.default.oneOf(['hover', false]),
/** Autoplays the carousel after the user manually cycles the first item. If "carousel", autoplays the carousel on load. */
ride: _propTypes.default.oneOf(['carousel']),
/** the interval at which the carousel automatically cycles */
interval: _propTypes.default.oneOfType([_propTypes.default.number, _propTypes.default.string, _propTypes.default.bool]),
children: _propTypes.default.array,
/** called when the mouse enters the Carousel */
mouseEnter: _propTypes.default.func,
/** called when the mouse exits the Carousel */
mouseLeave: _propTypes.default.func,
/** controls whether the slide animation on the Carousel works or not */
slide: _propTypes.default.bool,
/** make the controls, indicators and captions dark on the Carousel */
dark: _propTypes.default.bool,
fade: _propTypes.default.bool,
/** Change underlying component's CSS base class name */
cssModule: _propTypes.default.object,
/** Add custom class */
className: _propTypes.default.string,
/** Enable touch support */
enableTouch: _propTypes.default.bool
};
const propsToOmit = Object.keys(propTypes);
const defaultProps = {
interval: 5000,
pause: 'hover',
keyboard: true,
slide: true,
enableTouch: true,
fade: false
};
class Carousel extends _react.default.Component {
constructor(props) {
super(props);
this.handleKeyPress = this.handleKeyPress.bind(this);
this.renderItems = this.renderItems.bind(this);
this.hoverStart = this.hoverStart.bind(this);
this.hoverEnd = this.hoverEnd.bind(this);
this.handleTouchStart = this.handleTouchStart.bind(this);
this.handleTouchEnd = this.handleTouchEnd.bind(this);
this.touchStartX = 0;
this.touchStartY = 0;
this.state = {
activeIndex: this.props.activeIndex,
direction: 'end',
indicatorClicked: false
};
}
componentDidMount() {
// Set up the cycle
if (this.props.ride === 'carousel') {
this.setInterval();
}
// TODO: move this to the specific carousel like bootstrap. Currently it will trigger ALL carousels on the page.
document.addEventListener('keyup', this.handleKeyPress);
}
static getDerivedStateFromProps(nextProps, prevState) {
let newState = null;
let {
activeIndex,
direction,
indicatorClicked
} = prevState;
if (nextProps.activeIndex !== activeIndex) {
// Calculate the direction to turn
if (nextProps.activeIndex === activeIndex + 1) {
direction = 'end';
} else if (nextProps.activeIndex === activeIndex - 1) {
direction = 'start';
} else if (nextProps.activeIndex < activeIndex) {
direction = indicatorClicked ? 'start' : 'end';
} else if (nextProps.activeIndex !== activeIndex) {
direction = indicatorClicked ? 'end' : 'start';
}
newState = {
activeIndex: nextProps.activeIndex,
direction,
indicatorClicked: false
};
}
return newState;
}
componentDidUpdate(prevProps, prevState) {
if (prevState.activeIndex === this.state.activeIndex) return;
this.setInterval();
}
componentWillUnmount() {
this.clearInterval();
document.removeEventListener('keyup', this.handleKeyPress);
}
handleKeyPress(evt) {
if (this.props.keyboard) {
if (evt.keyCode === 37) {
this.props.previous();
} else if (evt.keyCode === 39) {
this.props.next();
}
}
}
handleTouchStart(e) {
if (!this.props.enableTouch) {
return;
}
this.touchStartX = e.changedTouches[0].screenX;
this.touchStartY = e.changedTouches[0].screenY;
}
handleTouchEnd(e) {
if (!this.props.enableTouch) {
return;
}
const currentX = e.changedTouches[0].screenX;
const currentY = e.changedTouches[0].screenY;
const diffX = Math.abs(this.touchStartX - currentX);
const diffY = Math.abs(this.touchStartY - currentY);
// Don't swipe if Y-movement is bigger than X-movement
if (diffX < diffY) {
return;
}
if (diffX < SWIPE_THRESHOLD) {
return;
}
if (currentX < this.touchStartX) {
this.props.next();
} else {
this.props.previous();
}
}
getContextValue() {
return {
direction: this.state.direction
};
}
setInterval() {
// make sure not to have multiple intervals going...
this.clearInterval();
if (this.props.interval) {
this.cycleInterval = setInterval(() => {
this.props.next();
}, parseInt(this.props.interval, 10));
}
}
clearInterval() {
clearInterval(this.cycleInterval);
}
hoverStart(...args) {
if (this.props.pause === 'hover') {
this.clearInterval();
}
if (this.props.mouseEnter) {
this.props.mouseEnter(...args);
}
}
hoverEnd(...args) {
if (this.props.pause === 'hover') {
this.setInterval();
}
if (this.props.mouseLeave) {
this.props.mouseLeave(...args);
}
}
renderItems(carouselItems, className) {
const {
slide
} = this.props;
return /*#__PURE__*/_react.default.createElement("div", {
className: className
}, carouselItems.map((item, index) => {
const isIn = index === this.state.activeIndex;
return /*#__PURE__*/_react.default.cloneElement(item, {
in: isIn,
slide: slide
});
}));
}
render() {
const {
cssModule,
slide,
className,
dark,
fade
} = this.props;
const attributes = (0, _utils.omit)(this.props, propsToOmit);
const outerClasses = (0, _utils.mapToCssModules)((0, _classnames.default)(className, 'carousel', fade && 'carousel-fade', slide && 'slide', dark && 'carousel-dark'), cssModule);
const innerClasses = (0, _utils.mapToCssModules)((0, _classnames.default)('carousel-inner'), cssModule);
// filter out booleans, null, or undefined
const children = this.props.children.filter(child => child !== null && child !== undefined && typeof child !== 'boolean');
const slidesOnly = children.every(child => child.type === _CarouselItem.default);
// Rendering only slides
if (slidesOnly) {
return /*#__PURE__*/_react.default.createElement("div", _extends({}, attributes, {
className: outerClasses,
onMouseEnter: this.hoverStart,
onMouseLeave: this.hoverEnd
}), /*#__PURE__*/_react.default.createElement(_CarouselContext.CarouselContext.Provider, {
value: this.getContextValue()
}, this.renderItems(children, innerClasses)));
}
// Rendering slides and controls
if (children[0] instanceof Array) {
const carouselItems = children[0];
const controlLeft = children[1];
const controlRight = children[2];
return /*#__PURE__*/_react.default.createElement("div", _extends({}, attributes, {
className: outerClasses,
onMouseEnter: this.hoverStart,
onMouseLeave: this.hoverEnd
}), /*#__PURE__*/_react.default.createElement(_CarouselContext.CarouselContext.Provider, {
value: this.getContextValue()
}, this.renderItems(carouselItems, innerClasses), controlLeft, controlRight));
}
// Rendering indicators, slides and controls
const indicators = children[0];
const wrappedOnClick = e => {
if (typeof indicators.props.onClickHandler === 'function') {
this.setState({
indicatorClicked: true
}, () => indicators.props.onClickHandler(e));
}
};
const wrappedIndicators = /*#__PURE__*/_react.default.cloneElement(indicators, {
onClickHandler: wrappedOnClick
});
const carouselItems = children[1];
const controlLeft = children[2];
const controlRight = children[3];
return /*#__PURE__*/_react.default.createElement("div", _extends({}, attributes, {
className: outerClasses,
onMouseEnter: this.hoverStart,
onMouseLeave: this.hoverEnd,
onTouchStart: this.handleTouchStart,
onTouchEnd: this.handleTouchEnd
}), /*#__PURE__*/_react.default.createElement(_CarouselContext.CarouselContext.Provider, {
value: this.getContextValue()
}, wrappedIndicators, this.renderItems(carouselItems, innerClasses), controlLeft, controlRight));
}
}
Carousel.propTypes = propTypes;
Carousel.defaultProps = defaultProps;
var _default = Carousel;
exports.default = _default;