reactstrap
Version:
React Bootstrap components
334 lines (328 loc) • 14.9 kB
JavaScript
function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(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); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import CarouselItem from './CarouselItem';
import { CarouselContext } from './CarouselContext';
import { mapToCssModules, omit } from './utils';
var SWIPE_THRESHOLD = 40;
var propTypes = {
/** the current active slide of the carousel */
activeIndex: PropTypes.number,
/** a function which should advance the carousel to the next slide (via activeIndex) */
next: PropTypes.func.isRequired,
/** a function which should advance the carousel to the previous slide (via activeIndex) */
previous: PropTypes.func.isRequired,
/** controls if the left and right arrow keys should control the carousel */
keyboard: PropTypes.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.oneOf(['hover', false]),
/** Autoplays the carousel after the user manually cycles the first item. If "carousel", autoplays the carousel on load. */
ride: PropTypes.oneOf(['carousel']),
/** the interval at which the carousel automatically cycles */
interval: PropTypes.oneOfType([PropTypes.number, PropTypes.string, PropTypes.bool]),
children: PropTypes.array,
/** called when the mouse enters the Carousel */
mouseEnter: PropTypes.func,
/** called when the mouse exits the Carousel */
mouseLeave: PropTypes.func,
/** controls whether the slide animation on the Carousel works or not */
slide: PropTypes.bool,
/** make the controls, indicators and captions dark on the Carousel */
dark: PropTypes.bool,
fade: PropTypes.bool,
/** Change underlying component's CSS base class name */
cssModule: PropTypes.object,
/** Add custom class */
className: PropTypes.string,
/** Enable touch support */
enableTouch: PropTypes.bool
};
var propsToOmit = Object.keys(propTypes);
var defaultProps = {
interval: 5000,
pause: 'hover',
keyboard: true,
slide: true,
enableTouch: true,
fade: false
};
var Carousel = /*#__PURE__*/function (_React$Component) {
_inherits(Carousel, _React$Component);
var _super = _createSuper(Carousel);
function Carousel(props) {
var _this;
_classCallCheck(this, Carousel);
_this = _super.call(this, props);
_this.handleKeyPress = _this.handleKeyPress.bind(_assertThisInitialized(_this));
_this.renderItems = _this.renderItems.bind(_assertThisInitialized(_this));
_this.hoverStart = _this.hoverStart.bind(_assertThisInitialized(_this));
_this.hoverEnd = _this.hoverEnd.bind(_assertThisInitialized(_this));
_this.handleTouchStart = _this.handleTouchStart.bind(_assertThisInitialized(_this));
_this.handleTouchEnd = _this.handleTouchEnd.bind(_assertThisInitialized(_this));
_this.touchStartX = 0;
_this.touchStartY = 0;
_this.state = {
activeIndex: _this.props.activeIndex,
direction: 'end',
indicatorClicked: false
};
return _this;
}
_createClass(Carousel, [{
key: "componentDidMount",
value: function 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);
}
}, {
key: "componentDidUpdate",
value: function componentDidUpdate(prevProps, prevState) {
if (prevState.activeIndex === this.state.activeIndex) return;
this.setInterval();
}
}, {
key: "componentWillUnmount",
value: function componentWillUnmount() {
this.clearInterval();
document.removeEventListener('keyup', this.handleKeyPress);
}
}, {
key: "handleKeyPress",
value: function handleKeyPress(evt) {
if (this.props.keyboard) {
if (evt.keyCode === 37) {
this.props.previous();
} else if (evt.keyCode === 39) {
this.props.next();
}
}
}
}, {
key: "handleTouchStart",
value: function handleTouchStart(e) {
if (!this.props.enableTouch) {
return;
}
this.touchStartX = e.changedTouches[0].screenX;
this.touchStartY = e.changedTouches[0].screenY;
}
}, {
key: "handleTouchEnd",
value: function handleTouchEnd(e) {
if (!this.props.enableTouch) {
return;
}
var currentX = e.changedTouches[0].screenX;
var currentY = e.changedTouches[0].screenY;
var diffX = Math.abs(this.touchStartX - currentX);
var 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();
}
}
}, {
key: "getContextValue",
value: function getContextValue() {
return {
direction: this.state.direction
};
}
}, {
key: "setInterval",
value: function (_setInterval) {
function setInterval() {
return _setInterval.apply(this, arguments);
}
setInterval.toString = function () {
return _setInterval.toString();
};
return setInterval;
}(function () {
var _this2 = this;
// make sure not to have multiple intervals going...
this.clearInterval();
if (this.props.interval) {
this.cycleInterval = setInterval(function () {
_this2.props.next();
}, parseInt(this.props.interval, 10));
}
})
}, {
key: "clearInterval",
value: function (_clearInterval) {
function clearInterval() {
return _clearInterval.apply(this, arguments);
}
clearInterval.toString = function () {
return _clearInterval.toString();
};
return clearInterval;
}(function () {
clearInterval(this.cycleInterval);
})
}, {
key: "hoverStart",
value: function hoverStart() {
if (this.props.pause === 'hover') {
this.clearInterval();
}
if (this.props.mouseEnter) {
var _this$props;
(_this$props = this.props).mouseEnter.apply(_this$props, arguments);
}
}
}, {
key: "hoverEnd",
value: function hoverEnd() {
if (this.props.pause === 'hover') {
this.setInterval();
}
if (this.props.mouseLeave) {
var _this$props2;
(_this$props2 = this.props).mouseLeave.apply(_this$props2, arguments);
}
}
}, {
key: "renderItems",
value: function renderItems(carouselItems, className) {
var _this3 = this;
var slide = this.props.slide;
return /*#__PURE__*/React.createElement("div", {
className: className
}, carouselItems.map(function (item, index) {
var isIn = index === _this3.state.activeIndex;
return /*#__PURE__*/React.cloneElement(item, {
"in": isIn,
slide: slide
});
}));
}
}, {
key: "render",
value: function render() {
var _this4 = this;
var _this$props3 = this.props,
cssModule = _this$props3.cssModule,
slide = _this$props3.slide,
className = _this$props3.className,
dark = _this$props3.dark,
fade = _this$props3.fade;
var attributes = omit(this.props, propsToOmit);
var outerClasses = mapToCssModules(classNames(className, 'carousel', fade && 'carousel-fade', slide && 'slide', dark && 'carousel-dark'), cssModule);
var innerClasses = mapToCssModules(classNames('carousel-inner'), cssModule);
// filter out booleans, null, or undefined
var children = this.props.children.filter(function (child) {
return child !== null && child !== undefined && typeof child !== 'boolean';
});
var slidesOnly = children.every(function (child) {
return child.type === CarouselItem;
});
// Rendering only slides
if (slidesOnly) {
return /*#__PURE__*/React.createElement("div", _extends({}, attributes, {
className: outerClasses,
onMouseEnter: this.hoverStart,
onMouseLeave: this.hoverEnd
}), /*#__PURE__*/React.createElement(CarouselContext.Provider, {
value: this.getContextValue()
}, this.renderItems(children, innerClasses)));
}
// Rendering slides and controls
if (children[0] instanceof Array) {
var _carouselItems = children[0];
var _controlLeft = children[1];
var _controlRight = children[2];
return /*#__PURE__*/React.createElement("div", _extends({}, attributes, {
className: outerClasses,
onMouseEnter: this.hoverStart,
onMouseLeave: this.hoverEnd
}), /*#__PURE__*/React.createElement(CarouselContext.Provider, {
value: this.getContextValue()
}, this.renderItems(_carouselItems, innerClasses), _controlLeft, _controlRight));
}
// Rendering indicators, slides and controls
var indicators = children[0];
var wrappedOnClick = function wrappedOnClick(e) {
if (typeof indicators.props.onClickHandler === 'function') {
_this4.setState({
indicatorClicked: true
}, function () {
return indicators.props.onClickHandler(e);
});
}
};
var wrappedIndicators = /*#__PURE__*/React.cloneElement(indicators, {
onClickHandler: wrappedOnClick
});
var carouselItems = children[1];
var controlLeft = children[2];
var controlRight = children[3];
return /*#__PURE__*/React.createElement("div", _extends({}, attributes, {
className: outerClasses,
onMouseEnter: this.hoverStart,
onMouseLeave: this.hoverEnd,
onTouchStart: this.handleTouchStart,
onTouchEnd: this.handleTouchEnd
}), /*#__PURE__*/React.createElement(CarouselContext.Provider, {
value: this.getContextValue()
}, wrappedIndicators, this.renderItems(carouselItems, innerClasses), controlLeft, controlRight));
}
}], [{
key: "getDerivedStateFromProps",
value: function getDerivedStateFromProps(nextProps, prevState) {
var newState = null;
var activeIndex = prevState.activeIndex,
direction = prevState.direction,
indicatorClicked = prevState.indicatorClicked;
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: direction,
indicatorClicked: false
};
}
return newState;
}
}]);
return Carousel;
}(React.Component);
Carousel.propTypes = propTypes;
Carousel.defaultProps = defaultProps;
export default Carousel;