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79x 79x 79x 79x 25x 40x 14x 40x 36x 4x 4x 25x 20x 11x 20x 17x 3x 3x 25x 25x 209x 209x 209x 209x 209x 209x 209x 8x 4x 8x 65x 29x 65x 59x 28x 59x 47x 18x 47x 24x 24x 6x 209x 209x 666x 209x 209x 457x 457x 457x 457x 209x 140x 140x 6x 6x 4x 2x 134x 140x 583x 583x 583x 216x 90x 216x 201x 62x 201x 113x 16x 113x 53x 53x 2515x 209x 1706x 1706x 1706x 209x 816x 816x 816x 816x 816x 816x 814x 11x 11x 11x 11x 814x 13x 13x 13x 13x 816x 217x 217x 217x 217x 16x 16x 16x 16x 16x 7x 7x 7x 9x 9x 9x 16x 16x 16x 217x 816x 816x 1607x 1607x 25x 816x 816x 17x 17x | import React, { Component, Fragment } from 'react';
import throttle from 'lodash/throttle';
import each from 'lodash/each';
import get from 'lodash/get';
import isEqual from 'lodash/isEqual';
import classNames from 'classnames';
import ResizeObserver from 'resize-observer-polyfill';
import CircularArray from './array';
import { defaultProps, propTypes } from './types';
import { PrevArrow, NextArrow } from './arrows';
import Dots from './dots';
import {
signupListener,
removeListener,
handleCarouselTap,
handleAutoplayPause,
handleCarouselDrag,
handleCarouselRelease,
handleClick,
handleKeyDown,
handleResize,
handleResizeHeight,
handleWheel,
handleVisibilityChange,
} from './listener';
// import './style.css';
const extractObject = (spec, keys) => {
const newObject = {};
for (let i = 0; i < keys.length; i += 1) {
const key = keys[i];
newObject[key] = spec[key];
}
return newObject;
};
class Slider extends Component {
isMounted = true;
constructor(props) {
super(props);
this.state = {
SliderRef: null,
width: 0,
height: 0,
autoplaying: null,
settings: defaultProps,
activeIndex: 0
};
this.touchObject = {};
this.newChildren = [];
this.virtualList = [];
this.center = 0;
this.offset = 0;
this.target = 0;
this.items = null;
this.virtualItem = null;
this.dim = 1;
this.xform = '';
this.resizeObserver = null;
this.autoplayTimer = null;
['', 'Webkit', 'Moz', 'O', 'ms'].every((prefix) => {
const e = `${prefix}Transform`;
Iif (typeof document !== 'undefined' && typeof document.body.style[e] !== 'undefined') {
this.xform = e;
return false;
}
return true;
});
/* switch */
this.doubleTrigger = false;
this.initialSet = false;
this.beforeChangeTrigger = false;
this.scrollEnd = false;
this.autoplayTimer = null;
this.scrollType = {};
this.scrollOptions = {};
this.rerender = false;
this.resizeHeight = false;
this.endIndex = null;
this.changeWindow = false;
/* functionBind */
this.scroll = this.scroll.bind(this);
this.setRef = this.setRef.bind(this);
this.slideInit = this.slideInit.bind(this);
this.slickNext = this.slickNext.bind(this);
this.slickPrev = this.slickPrev.bind(this);
this.slickSet = this.slickSet.bind(this);
this.cycleTo = this.cycleTo.bind(this);
this.autoPlay = this.autoPlay.bind(this);
this.handleCarouselTap = handleCarouselTap.bind(this);
this.signupListener = signupListener.bind(this);
this.removeListener = removeListener.bind(this);
this.handleCarouselDrag = handleCarouselDrag.bind(this);
this.handleCarouselRelease = handleCarouselRelease.bind(this);
this.handleAutoplayPause = handleAutoplayPause.bind(this);
this.handleResize = throttle(handleResize.bind(this), 1000, { leading: true });
this.handleResizeHeight = throttle(handleResizeHeight.bind(this), 500);
this.handleVisibilityChange = handleVisibilityChange.bind(this);
this.handleKeyDown = handleKeyDown.bind(this);
this.handleClick = handleClick.bind(this);
this.handleWheel = handleWheel.bind(this);
}
componentDidMount() {
this.isMounted = true;
window.addEventListener('resize', this.handleResize);
this.init();
const { onInit } = this.props;
if (onInit && typeof onInit === 'function') onInit(this);
}
shouldComponentUpdate(nextProps, nextState) {
this.init();
const { slidesPerRow, rows } = nextProps;
const { settings: { slidesPerRow: originPerRow, rows: originRows } } = this.state;
if (slidesPerRow !== originPerRow || rows !== originRows) {
this.resizeHeight = false;
}
return isEqual(nextProps, this.props) || isEqual(nextState, this.state);
}
componentDidUpdate(prevProps) {
const { SliderRef } = this.state;
const newProps = { ...this.props, children: [] };
const newPrevProps = { ...prevProps, children: [] };
const { children } = this.props;
if (!isEqual(newProps, newPrevProps) || prevProps.children.length !== children.length) {
const { onReInit } = this.props;
this.init();
this.setRef(SliderRef);
if (onReInit && typeof onReInit === 'function') onReInit(this);
}
}
componentWillUnmount() {
window.removeEventListener('resize', this.handleResize);
this.isMounted = false;
}
/**
* settings init
*/
init = () => {
let { settings, width } = this.state;
const { activeIndex } = this.state;
settings = { ...defaultProps, ...this.props };
// force showing one slide and scrolling by one if the fade mode is on
Iif (settings.fade) {
if (
settings.slidesToShow > 1 && process.env.NODE_ENV !== 'production'
) {
console.warn(
`slidesToShow should be equal to 1 when fade is true, you're using ${settings.slidesToShow}`
);
}
settings.slidesToShow = 1;
}
let { children } = this.props;
children = React.Children.toArray(children).filter((child) => (typeof child === 'string' ? !!child.trim() : !!child));
const newWith = this.widthInit();
if (width !== newWith) {
width = newWith;
}
const newChildren = [];
for (
let i = 0;
i < children.length;
i += settings.rows * settings.slidesPerRow
) {
const newSlide = [];
for (
let j = i;
j < i + settings.rows * settings.slidesPerRow;
j += settings.slidesPerRow
) {
const row = [];
for (let k = j; k < j + settings.slidesPerRow; k += 1) {
Eif (k < children.length) {
row.push(
React.cloneElement(children[k], {
key: 100 * i + 10 * j + k,
tabIndex: -1,
style: {
width: `${100 / settings.slidesPerRow}%`,
display: 'inline-block'
}
})
);
}
}
newSlide.push(<div className="carousel-row" key={10 * i + j}>{row}</div>);
}
newChildren.push(
<div
data-carouselkey={i}
key={i}
className="carousel-item"
style={{ width: `${width}px`, display: 'none' }}
>
{newSlide}
</div>
);
}
if (this.newChildren.length !== newChildren.length) {
this.rerender = true;
this.newChildren = newChildren;
} else {
this.rerender = false;
this.newChildren = newChildren;
this.virtualList = newChildren;
}
if (
settings.virtualList
&& this.items
&& this.items.length === this.newChildren.length
&& !this.rerender
) {
if (this.endIndex === activeIndex) {
this.endIndex = null;
}
this.virtualList = this.createVirtualList();
this.forceUpdate(() => {
Eif (!this.resizeHeight) {
this.connectObserver();
}
});
}
if (!isEqual(get(this.state, 'settings'), settings) && this.isMounted) {
this.setState({ settings });
}
};
/**
* Get slider reference
*/
setRef = (element) => this.setState({ SliderRef: element }, () => {
const slides = element.querySelectorAll('.carousel-item');
const { settings: { virtualList } } = this.state;
if (virtualList) {
this.virtualList = this.newChildren;
this.forceUpdate(() => {
this.items = new CircularArray(element.querySelectorAll('.carousel-item'));
this.virtualItem = null;
});
} else {
this.items = new CircularArray(slides);
}
this.slideInit();
const { settings } = this.state;
const { slidesToShow } = settings;
if (slidesToShow < slides.length) {
this.signupListener();
this.autoPlay();
} else {
this.removeListener();
}
element.addEventListener('click', this.handleClick);
});
/**
* autoPlay func
*/
autoPlay = () => {
const {
SliderRef,
settings: {
autoplay, autoplaySpeed, pauseOnHover
}
} = this.state;
if (autoplay && autoplaySpeed > 0 && !this.autoplayTimer) {
this.scrollType = {
type: 'autoplay'
};
this.autoplayTimer = setInterval(() => {
const { autoplayScroll } = this.props;
const { activeIndex } = this.state;
this.beforeChangeTrigger = false;
this.slickNext(activeIndex + autoplayScroll);
}, autoplaySpeed);
window.addEventListener('visibilitychange', this.handleVisibilityChange);
if (pauseOnHover) {
SliderRef.addEventListener('mouseover', this.handleAutoplayPause);
SliderRef.removeEventListener('mouseleave', this.autoPlay);
} else {
SliderRef.removeEventListener('mouseover', this.handleAutoplayPause);
SliderRef.removeEventListener('mouseleave', this.autoPlay);
}
} else if (autoplay && autoplaySpeed && this.autoplayTimer) {
this.autoPlayInit();
if (!pauseOnHover) {
SliderRef.removeEventListener('mouseover', this.handleAutoplayPause);
SliderRef.removeEventListener('mouseleave', this.autoPlay);
}
}
};
/**
* autoPlay init func
* @param {Object} options
* @param {Number} options.autoplaySpeed
*/
autoPlayInit = () => {
const { settings } = this.state;
if (settings.autoplay) {
this.handleAutoplayPause();
this.autoPlay();
} else Eif (this.isMounted) {
this.setState({
settings: {
...settings,
autoplay: true
}
}, () => {
this.handleAutoplayPause();
this.autoPlay();
});
}
};
/**
* ResizeObserver connect
*/
connectObserver = () => {
if (!this.resizeObserver) {
const { SliderRef } = this.state;
this.resizeObserver = new ResizeObserver(this.handleResizeHeight);
this.resizeObserver.observe(SliderRef.querySelector('.carousel-item'));
} else {
this.disconnectObserver();
this.connectObserver();
}
};
/**
* ResizeObserver disconnect
*/
disconnectObserver = () => {
Eif (this.resizeObserver) {
this.resizeObserver.disconnect();
this.resizeObserver = null;
}
};
/**
* Tracks scrolling information
*/
track = () => {
const now = Date.now();
const elapsed = now - this.timestamp;
this.timestamp = now;
const delta = this.offset - this.frame;
this.frame = this.offset;
const v = (1000 * delta) / (1 + elapsed);
this.velocity = 0.8 * v + 0.2 * this.velocity;
};
/**
* Auto scrolls to nearest carousel item.
*/
autoScroll = (type) => {
const { settings } = this.state;
Eif (this.amplitude) {
const elapsed = Date.now() - this.timestamp;
const delta = this.amplitude * Math.exp(-elapsed / settings.duration);
if (this.doubleTrigger) {
this.beforeChangeTrigger = false;
this.scroll('auto', this.target - delta);
requestAnimationFrame(this.autoScroll);
this.doubleTrigger = false;
} else if (delta > 2 || delta < -2) {
this.scroll(type === 'start' ? type : 'auto', this.target - delta);
requestAnimationFrame(this.autoScroll);
} else Iif (this.changeWindow) {
this.changeWindow = false;
this.scroll('auto', this.target);
} else {
this.scroll('end', this.target);
}
}
};
getItem = (scrollItem, index) => {
const { settings: { virtualList } } = this.state;
let el;
if (virtualList) {
const keyIndex = scrollItem.getKeyIndex(index);
if (keyIndex >= 0) {
el = scrollItem.get(keyIndex);
}
} else {
el = scrollItem.get(index);
}
return el;
}
/**
* Scroll to target
* @param {string} type
* @param {Number} x
*/
scroll = (type, x) => {
const {
SliderRef,
width,
settings,
activeIndex
} = this.state;
const {
centerMode,
beforeChange,
afterChange,
slidesToShow,
virtualList
} = settings;
// Start actual scroll
let i;
let el;
let alignment = 'translateX(0px)';
if (!x) {
this.offset = width * activeIndex * 2;
} else {
this.offset = typeof x === 'number' ? x : this.offset;
}
this.center = Math.floor((this.offset + this.dim / 2) / this.dim);
const delta = this.offset - this.center * this.dim;
const dir = delta < 0 ? 1 : -1;
const tween = (-dir * delta * 2) / this.dim;
if (centerMode) {
if (slidesToShow % 2 === 0) {
alignment = `translateX(${width * (slidesToShow / 2)}px)`;
} else {
alignment = `translateX(${(SliderRef.clientWidth - width) / 2 - settings.centerPadding}px)`;
}
} else {
alignment = 'translateX(0px)';
}
const { type: scrollType, direction } = this.scrollType;
// Track scrolling state
if (
!SliderRef.classList.contains('scrolling')
&& scrollType !== 'arrows'
&& (type !== 'init' && type !== 'resize')) {
this.swiping = true;
SliderRef.classList.add('scrolling');
}
// center
// Don't show wrapped items.
const index = this.wrap(this.center);
if (
!this.beforeChangeTrigger
&& (type !== 'start' && type !== 'end' && type !== 'init')
) {
this.beforeChangeTrigger = true;
let newIndex;
switch (scrollType) {
case 'arrows': {
const slides = settings.arrowsScroll;
this.scrollDistance = slides;
newIndex = this.items.getIndex(direction === 'prev' ? activeIndex - slides : activeIndex + slides);
break;
}
case 'dots': {
newIndex = this.scrollOptions.index * this.scrollOptions.dotsScroll;
break;
}
case 'autoplay': {
const slides = settings.autoplayScroll;
this.scrollDistance = slides;
newIndex = this.items.getIndex(activeIndex + slides);
break;
}
case 'wheel': {
const slides = settings.wheelScroll;
this.scrollDistance = slides;
newIndex = this.items.getIndex(direction === 'prev' ? activeIndex - slides : activeIndex + slides);
break;
}
default: break;
}
this.endIndex = newIndex;
if (beforeChange && typeof beforeChange === 'function') {
beforeChange(activeIndex, newIndex);
}
}
if (type !== 'end' && this.scrollEnd) this.scrollEnd = false;
if (type === 'end') {
if (afterChange && typeof afterChange === 'function' && !this.scrollEnd) {
afterChange(this.wrap(this.center));
}
this.scrollEnd = true;
SliderRef.classList.remove('scrolling');
this.beforeChangeTrigger = false;
this.swiping = false;
} else Iif (this.scrollEnd) {
this.scrollEnd(true);
}
this.virtualItem = this.virtualItem || new CircularArray(SliderRef.querySelectorAll('.carousel-item'), this.items);
const scrollItem = virtualList ? this.virtualItem : this.items;
if (scrollItem.length <= slidesToShow) {
el = this.getItem(scrollItem, 0);
Eif (el) {
// Add active class to center item.
Eif (el.classList.contains('active')) {
each(SliderRef.querySelectorAll('.carousel-item'), (ele) => ele.classList.remove('active'));
el.classList.add('active');
}
const transformString = `${alignment} translateX(0px)`;
this.updateItemStyle(el, transformString);
}
} else Eif (!this.noWrap || (this.center >= 0 && this.center < scrollItem.length)) {
el = this.getItem(scrollItem, index);
Eif (el) {
// Add active class to center item.
if (el.classList.contains('active')) {
each(SliderRef.querySelectorAll('.carousel-item'), (ele) => ele.classList.remove('active'));
el.classList.add('active');
}
const transformString = `${alignment} translateX(${-delta / 2}px) translateX(${dir * settings.shift * tween * i}px)`;
this.updateItemStyle(el, transformString);
}
}
if (centerMode) {
const half = Math.floor(scrollItem.length / 2);
for (i = 1; i <= half; i += 1) {
// right side
// Don't show wrapped items.
Eif (!this.noWrap || this.center + i < scrollItem.length) {
el = this.getItem(scrollItem, this.wrap(this.center + i));
if (el) {
const transformString = `${alignment} translateX(${settings.shift + (this.dim * i - delta) / 2}px)`;
this.updateItemStyle(el, transformString);
}
}
// left side
// Don't show wrapped items.
Eif (!this.noWrap || this.center - i >= 0) {
el = this.getItem(scrollItem, this.wrap(this.center - i));
if (el) {
const transformString = `${alignment} translateX(${-settings.shift + (-this.dim * i - delta) / 2}px)`;
this.updateItemStyle(el, transformString);
}
}
}
} else Iif (scrollItem.length <= slidesToShow) {
for (i = 1; i < scrollItem.length; i += 1) {
el = this.getItem(scrollItem, i);
if (el) {
const transformString = `${alignment} translateX(${settings.shift + (this.dim * i - delta) / 2}px)`;
this.updateItemStyle(el, transformString);
}
}
} else {
for (i = 1; i < slidesToShow; i += 1) {
el = this.getItem(scrollItem, this.wrap(this.center + i));
if (el) {
const transformString = `${alignment} translateX(${settings.shift + (this.dim * i - delta) / 2}px)`;
this.updateItemStyle(el, transformString);
}
}
const half = Math.ceil((scrollItem.length - slidesToShow) / 2);
for (i = 0; i < half; i += 1) {
// right side
Eif (!this.noWrap || this.center + slidesToShow + i < scrollItem.length) {
el = this.getItem(scrollItem, this.wrap(this.center + slidesToShow + i));
if (el) {
const transformString = `${alignment} translateX(${settings.shift + (this.dim * (slidesToShow + i) - delta) / 2}px)`;
this.updateItemStyle(el, transformString);
}
}
// left side
Eif (!this.noWrap || this.center + slidesToShow + i < scrollItem.length) {
el = this.getItem(scrollItem, this.wrap(this.center - i - 1));
if (el) {
const transformString = `${alignment} translateX(${-settings.shift + (-this.dim * (i + 1) - delta) / 2}px)`;
this.updateItemStyle(el, transformString);
}
}
}
}
// center
// Don't show wrapped items.
if ((!this.noWrap || (this.center < this.items.length)) && slidesToShow < scrollItem.length) {
el = this.getItem(scrollItem, this.center);
Eif (el) {
if (!el.classList.contains('active')) {
each(SliderRef.querySelectorAll('.carousel-item'), (ele) => ele.classList.remove('active'));
el.classList.add('active');
const newActiveIndex = this.wrap(this.center);
if (this.beforeChangeTrigger && this.isMounted) {
this.setState({ activeIndex: newActiveIndex }, () => { this.virtualItem = null; });
}
}
const transformString = `${alignment} translateX(${-delta / 2}px) translateX(${dir * settings.shift * tween}px)`;
this.updateItemStyle(el, transformString);
}
}
this.adaptHeight();
// onCycleTo callback
const currItem = SliderRef.querySelectorAll('.carousel-item')[
this.wrap(this.center)
];
// One time callback
Iif (typeof this.oneTimeCallback === 'function') {
this.oneTimeCallback.call(this, currItem, this.dragged);
this.oneTimeCallback = null;
}
};
/**
* Cycle to target
* @param {Element} el
* @param {String} transform
*/
updateItemStyle = (el, transform) => {
const newEl = el;
newEl.style[this.xform] = transform;
newEl.style.zIndex = 1;
newEl.style.display = '';
};
widthInit = () => {
const { settings, SliderRef } = this.state;
const {
centerMode,
centerPadding,
slidesToShow
} = settings;
if (SliderRef) {
let padding = 0;
if (typeof centerPadding === 'string') {
[padding] = centerPadding.match(/\d+/g);
} else if (typeof centerPadding === 'number') {
padding = centerPadding;
} else {
padding = 50;
console.warn('centerPadding have to be number or string like 50px');
}
let { offsetWidth } = SliderRef;
Eif (offsetWidth <= 0) {
offsetWidth = window.innerWidth;
}
const sliderWidth = centerMode
? offsetWidth - padding * 2
: offsetWidth;
const width = sliderWidth / slidesToShow;
return width;
}
return 0;
}
/**
* Carousel first initional
*/
slideInit = () => {
const { SliderRef, settings: { initialSlide } } = this.state;
Eif (SliderRef && this.isMounted) {
const width = this.widthInit();
this.setState({ width }, () => {
this.dim = width * 2;
// this.settings.gutter = padding;
this.scroll('init');
if (initialSlide) {
Eif (typeof initialSlide === 'number') {
if (initialSlide > 0 && !this.initialSet) {
this.slickSet(initialSlide);
this.initialSet = true;
}
} else {
this.slickSet(0);
this.initialSet = false;
console.warn('initialSlide must be a number');
}
}
this.connectObserver();
});
}
};
adaptHeight = () => {
const { settings, SliderRef, height } = this.state;
Iif (settings.adaptiveHeight && SliderRef) {
const index = this.wrap(this.center);
const elem = this.items.get(index);
const { offsetHeight } = elem;
if (height !== offsetHeight && offsetHeight > 0 && this.isMounted) {
this.setState({
height: offsetHeight
});
}
}
};
/**
* Get x position from event
* @param {Event} e
*/
xpos = (e) => {
// touch event
if (e.targetTouches && e.targetTouches.length >= 1) {
return e.targetTouches[0].clientX;
}
// mouse event
return e.clientX;
};
/**
* Get y position from event
* @param {Event} e
*/
ypos = (e) => {
// touch event
if (e.targetTouches && e.targetTouches.length >= 1) {
return e.targetTouches[0].clientY;
}
// mouse event
return e.clientY;
};
/**
* Wrap index
* @param {Number} x
*/
wrap = (x) => this.items.getIndex(x);
/**
* Cycle to target
* @param {Number} n
* @param {Function} callback
*/
cycleTo = (n, callback) => {
let diff = (this.center % this.items.length) - n;
// Account for wraparound.
Eif (!this.noWrap) {
if (diff < 0) {
if (Math.abs(diff + this.items.length) < Math.abs(diff)) {
diff += this.items.length;
}
} else Eif (diff > 0) {
Iif (Math.abs(diff - this.items.length) < diff) {
diff -= this.items.length;
}
}
}
this.target = this.dim * Math.round(this.offset / this.dim);
// Next
if (diff < 0) {
this.target += this.dim * Math.abs(diff);
// Prev
} else Eif (diff > 0) {
this.target -= this.dim * diff;
}
// Set one time callback
Iif (typeof callback === 'function') {
this.oneTimeCallback = callback;
}
// Scroll
Eif (this.offset !== this.target) {
this.amplitude = this.target - this.offset;
this.timestamp = Date.now();
requestAnimationFrame(() => {
this.autoScroll('start');
});
}
};
/**
* Cycle to next item
* @param {Number} n
*/
slickNext = (n) => {
if (this.scrollType.type === 'arrows') {
this.doubleTrigger = true;
}
if (typeof n === 'number') {
this.cycleTo(n);
} else {
const { activeIndex } = this.state;
this.cycleTo(activeIndex + 1);
}
};
/**
* Cycle to previous item
* @param {Number} n
*/
slickPrev = (n) => {
if (this.scrollType.type === 'arrows') {
this.doubleTrigger = true;
}
if (typeof n === 'number') {
this.cycleTo(n);
} else {
const { activeIndex } = this.state;
this.cycleTo(activeIndex - 1);
}
};
/**
* Cycle to nth item
* @param {Number} [n]
* @param {Function} callback
*/
slickSet = (n, callback) => this.cycleTo(n, callback);
createVirtualList = () => {
const {
settings: {
slidesToShow,
overScan
},
activeIndex
} = this.state;
Eif (this.virtualList.length > (((slidesToShow + overScan) * 2) + 1)) {
const result = [];
const getIndex = [];
let newActiveIndex = activeIndex;
const { type, direction } = this.scrollType;
switch (type) {
case 'scroll': {
if (direction === 'left') newActiveIndex += 1;
else newActiveIndex -= 1;
break;
}
case 'arrows': {
if (direction === 'next') newActiveIndex += 1;
else newActiveIndex -= 1;
break;
}
case 'dots': {
if (direction === 'right') newActiveIndex += 1;
else newActiveIndex -= 1;
break;
}
case 'wheel': {
if (direction === 'next') newActiveIndex += 1;
else newActiveIndex -= 1;
break;
}
case 'autoplay': {
newActiveIndex += 1;
break;
}
default:
break;
}
let i = 0;
for (; i < slidesToShow + overScan; i += 1) {
if (i === 0) {
const index = this.items.getIndex(newActiveIndex);
getIndex.push(index);
} else {
const rightIndex = this.items.getIndex(newActiveIndex + i);
const leftIndex = this.items.getIndex(newActiveIndex - i);
getIndex.push(rightIndex);
getIndex.unshift(leftIndex);
}
}
if (this.endIndex >= 0 && typeof this.endIndex === 'number') {
let buffer = 0;
if (
activeIndex + this.endIndex < this.newChildren.length + this.scrollDistance
&& activeIndex + this.endIndex >= this.newChildren.length - this.scrollDistance
&& (activeIndex >= this.newChildren.length - this.scrollDistance
|| this.endIndex >= this.newChildren.length - this.scrollDistance)
) {
Eif (this.endIndex + activeIndex < this.newChildren.length) {
if (this.endIndex < activeIndex) {
buffer = this.newChildren.length - activeIndex + this.endIndex;
} else {
buffer = this.newChildren.length - this.endIndex + activeIndex;
}
} else if (this.endIndex < activeIndex) {
buffer = (this.newChildren.length + this.scrollDistance) - activeIndex + this.endIndex;
} else {
buffer = (this.newChildren.length + this.scrollDistance) - this.endIndex + activeIndex;
}
} else {
buffer = this.endIndex < activeIndex
? activeIndex - this.endIndex
: this.endIndex - activeIndex;
}
for (let j = 0; j < buffer; j += 1) {
const rightIndex = this.items.getIndex(newActiveIndex + i + j);
const leftIndex = this.items.getIndex(newActiveIndex - i - j);
switch (type) {
case 'arrows': {
if (direction === 'next') getIndex.push(rightIndex);
else getIndex.unshift(leftIndex);
break;
}
case 'dots': {
if (direction === 'right') getIndex.push(rightIndex);
else getIndex.unshift(leftIndex);
break;
}
case 'wheel': {
if (direction === 'next') getIndex.push(rightIndex);
else getIndex.unshift(leftIndex);
break;
}
case 'autoplay': {
getIndex.push(rightIndex);
break;
}
default:
break;
}
}
}
getIndex.sort((a, b) => a - b);
for (i = 0; i < getIndex.length; i += 1) {
const childrenIndex = getIndex[i];
const children = this.newChildren[childrenIndex];
result.push(children);
}
return result;
}
return this.virtualList;
}
render() {
const { height, settings, activeIndex } = this.state;
const spec = { ...settings, ...this.prop };
const { centerPadding, centerMode } = settings;
const padding = typeof centerPadding === 'string' ? centerPadding : `${centerPadding}px`;
/* arrow */
const arrowProps = extractObject(spec, [
'arrows',
'arrowsScroll',
'centerMode',
'currentSlide',
'slideCount',
'slidesToShow',
'prevArrow',
'nextArrow',
'arrowsBlock'
]);
let prevArrow;
let nextArrow;
if (settings.arrows) {
prevArrow = (
<PrevArrow
{...arrowProps}
clickHandler={(options) => {
this.beforeChangeTrigger = false;
this.scrollType = {
type: 'arrows',
direction: 'prev'
};
this.scrollOptions = options;
this.slickPrev(activeIndex - options.arrowsScroll);
}}
/>
);
nextArrow = (
<NextArrow
{...arrowProps}
clickHandler={(options) => {
this.beforeChangeTrigger = false;
this.scrollType = {
type: 'arrows',
direction: 'next'
};
this.scrollOptions = options;
this.slickNext(activeIndex + options.arrowsScroll);
}}
/>
);
}
/* Dots */
let dots;
if (settings.dots === true && this.items) {
Eif (this.items.length >= settings.slidesToShow) {
const dotProps = extractObject(spec, [
'dotsClass',
'slidesToShow',
'dotsScroll',
'clickHandler',
'children',
'customPaging',
'infinite',
'appendDots'
]);
const { pauseOnDotsHover } = settings;
Object.assign(dotProps, {
activeIndex,
slideCount: this.items.length,
clickHandler: (options) => {
this.beforeChangeTrigger = false;
let right = 0;
let left = 0;
let direction = null;
if (activeIndex > options.index) {
right = this.newChildren.length - activeIndex + options.index;
left = activeIndex - options.index;
direction = right < left ? 'right' : 'left';
} else {
right = options.index - activeIndex;
left = this.newChildren.length - options.index + activeIndex;
direction = right <= left ? 'right' : 'left';
}
this.scrollType = {
type: 'dots',
direction
};
this.scrollOptions = options;
this.slickSet(options.index * options.dotsScroll);
},
onMouseEnter: pauseOnDotsHover ? this.onDotsLeave : null,
onMouseOver: pauseOnDotsHover ? this.onDotsOver : null,
onMouseLeave: pauseOnDotsHover ? this.onDotsLeave : null
});
dots = <Dots {...dotProps} />;
}
}
const judge = this.items ? settings.slidesToShow < this.items.length : false;
/* Slide */
let component = (
<Fragment>
<div
ref={(e) => {
const { SliderRef } = this.state;
if (!SliderRef && this.isMounted) {
this.setRef(e);
}
}}
className="carousel-initialized"
style={{
padding: centerMode ? `0 ${padding}` : 0
}}
>
{!settings.unslick && judge ? prevArrow : ''}
<div style={{ height: `${height}px` }} className="carousel-track">
{this.rerender ? this.newChildren : this.virtualList}
</div>
{!settings.unslick && judge ? nextArrow : ''}
</div>
{!settings.unslick && judge ? dots : ''}
</Fragment>
);
Iif (settings === 'unslick') {
const className = `regular slider ${settings.className || ''}`;
component = <div className={className}>{this.newChildren}</div>;
}
return (
<div className={classNames(settings.className)}>{component}</div>
);
}
}
Slider.propTypes = propTypes;
Slider.defaultProps = defaultProps;
export default Slider;
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