R E D

NAME	SIZE	PERMISSION
dom	[ DIR ]	drwxr-xr-x
util	[ DIR ]	drwxr-xr-x
alert.js	2.53 KB	-rwxr-xr-x
base-component.js	1.79 KB	-rwxr-xr-x
button.js	2.26 KB	-rwxr-xr-x
carousel.js	16.31 KB	-rwxr-xr-x
collapse.js	9.05 KB	-rwxr-xr-x
dropdown.js	14.37 KB	-rwxr-xr-x
modal.js	11.52 KB	-rwxr-xr-x
offcanvas.js	6.72 KB	-rwxr-xr-x
popover.js	2.91 KB	-rwxr-xr-x
scrollspy.js	8.01 KB	-rwxr-xr-x
tab.js	6.24 KB	-rwxr-xr-x
toast.js	5.86 KB	-rwxr-xr-x
tooltip.js	19.49 KB	-rwxr-xr-x

Code Editor : carousel.js

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v5.1.3): carousel.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
 * --------------------------------------------------------------------------
 */

import {
  defineJQueryPlugin,
  getElementFromSelector,
  isRTL,
  isVisible,
  getNextActiveElement,
  reflow,
  triggerTransitionEnd,
  typeCheckConfig,
} from './util/index';
import EventHandler from './dom/event-handler';
import Manipulator from './dom/manipulator';
import SelectorEngine from './dom/selector-engine';
import BaseComponent from './base-component';

/**
 * ------------------------------------------------------------------------
 * Constants
 * ------------------------------------------------------------------------
 */

const NAME = 'carousel';
const DATA_KEY = 'bs.carousel';
const EVENT_KEY = `.${DATA_KEY}`;
const DATA_API_KEY = '.data-api';

const ARROW_LEFT_KEY = 'ArrowLeft';
const ARROW_RIGHT_KEY = 'ArrowRight';
const TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch
const SWIPE_THRESHOLD = 40;

const Default = {
  interval: 5000,
  keyboard: true,
  slide: false,
  pause: 'hover',
  wrap: true,
  touch: true,
};

const DefaultType = {
  interval: '(number|boolean)',
  keyboard: 'boolean',
  slide: '(boolean|string)',
  pause: '(string|boolean)',
  wrap: 'boolean',
  touch: 'boolean',
};

const ORDER_NEXT = 'next';
const ORDER_PREV = 'prev';
const DIRECTION_LEFT = 'left';
const DIRECTION_RIGHT = 'right';

const KEY_TO_DIRECTION = {
  [ARROW_LEFT_KEY]: DIRECTION_RIGHT,
  [ARROW_RIGHT_KEY]: DIRECTION_LEFT,
};

const CLASS_NAME_CAROUSEL = 'carousel';
const CLASS_NAME_ACTIVE = 'active';
const CLASS_NAME_SLIDE = 'slide';
const CLASS_NAME_END = 'carousel-item-end';
const CLASS_NAME_START = 'carousel-item-start';
const CLASS_NAME_NEXT = 'carousel-item-next';
const CLASS_NAME_PREV = 'carousel-item-prev';
const CLASS_NAME_POINTER_EVENT = 'pointer-event';

const SELECTOR_ACTIVE = '.active';
const SELECTOR_ACTIVE_ITEM = '.active.carousel-item';
const SELECTOR_ITEM = '.carousel-item';
const SELECTOR_ITEM_IMG = '.carousel-item img';
const SELECTOR_NEXT_PREV = '.carousel-item-next, .carousel-item-prev';
const SELECTOR_INDICATORS = '.carousel-indicators';
const SELECTOR_INDICATOR = '[data-bs-target]';
const SELECTOR_DATA_SLIDE = '[data-bs-slide], [data-bs-slide-to]';
const SELECTOR_DATA_RIDE = '[data-bs-ride="carousel"]';

const POINTER_TYPE_TOUCH = 'touch';
const POINTER_TYPE_PEN = 'pen';

/**
 * ------------------------------------------------------------------------
 * Class Definition
 * ------------------------------------------------------------------------
 */
class Carousel extends BaseComponent {
  constructor(element, config) {
    super(element);

this._items = null;
    this._interval = null;
    this._activeElement = null;
    this._isPaused = false;
    this._isSliding = false;
    this.touchTimeout = null;
    this.touchStartX = 0;
    this.touchDeltaX = 0;

this._config = this._getConfig(config);
    this._indicatorsElement = SelectorEngine.findOne(SELECTOR_INDICATORS, this._element);
    this._touchSupported =
      'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
    this._pointerEvent = Boolean(window.PointerEvent);

this._addEventListeners();
  }

// Getters

static get Default() {
    return Default;
  }

static get NAME() {
    return NAME;
  }

// Public

next() {
    this._slide(ORDER_NEXT);
  }

nextWhenVisible() {
    // Don't call next when the page isn't visible
    // or the carousel or its parent isn't visible
    if (!document.hidden && isVisible(this._element)) {
      this.next();
    }
  }

prev() {
    this._slide(ORDER_PREV);
  }

pause(event) {
    if (!event) {
      this._isPaused = true;
    }

if (SelectorEngine.findOne(SELECTOR_NEXT_PREV, this._element)) {
      triggerTransitionEnd(this._element);
      this.cycle(true);
    }

clearInterval(this._interval);
    this._interval = null;
  }

cycle(event) {
    if (!event) {
      this._isPaused = false;
    }

if (this._interval) {
      clearInterval(this._interval);
      this._interval = null;
    }

if (this._config && this._config.interval && !this._isPaused) {
      this._updateInterval();

this._interval = setInterval(
        (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
        this._config.interval
      );
    }
  }

to(index) {
    this._activeElement = SelectorEngine.findOne(SELECTOR_ACTIVE_ITEM, this._element);
    const activeIndex = this._getItemIndex(this._activeElement);

if (index > this._items.length - 1 || index < 0) {
      return;
    }

if (this._isSliding) {
      EventHandler.one(this._element, EVENT_SLID, () => this.to(index));
      return;
    }

if (activeIndex === index) {
      this.pause();
      this.cycle();
      return;
    }

const order = index > activeIndex ? ORDER_NEXT : ORDER_PREV;

this._slide(order, this._items[index]);
  }

// Private

_getConfig(config) {
    config = {
      ...Default,
      ...Manipulator.getDataAttributes(this._element),
      ...(typeof config === 'object' ? config : {}),
    };
    typeCheckConfig(NAME, config, DefaultType);
    return config;
  }

_handleSwipe() {
    const absDeltax = Math.abs(this.touchDeltaX);

if (absDeltax <= SWIPE_THRESHOLD) {
      return;
    }

const direction = absDeltax / this.touchDeltaX;

this.touchDeltaX = 0;

if (!direction) {
      return;
    }

this._slide(direction > 0 ? DIRECTION_RIGHT : DIRECTION_LEFT);
  }

_addEventListeners() {
    if (this._config.keyboard) {
      EventHandler.on(this._element, EVENT_KEYDOWN, (event) => this._keydown(event));
    }

if (this._config.pause === 'hover') {
      EventHandler.on(this._element, EVENT_MOUSEENTER, (event) => this.pause(event));
      EventHandler.on(this._element, EVENT_MOUSELEAVE, (event) => this.cycle(event));
    }

if (this._config.touch && this._touchSupported) {
      this._addTouchEventListeners();
    }
  }

_addTouchEventListeners() {
    const hasPointerPenTouch = (event) => {
      return (
        this._pointerEvent &&
        (event.pointerType === POINTER_TYPE_PEN || event.pointerType === POINTER_TYPE_TOUCH)
      );
    };

const move = (event) => {
      // ensure swiping with one touch and not pinching
      this.touchDeltaX =
        event.touches && event.touches.length > 1 ? 0 : event.touches[0].clientX - this.touchStartX;
    };

const end = (event) => {
      if (hasPointerPenTouch(event)) {
        this.touchDeltaX = event.clientX - this.touchStartX;
      }

this._handleSwipe();
      if (this._config.pause === 'hover') {
        // If it's a touch-enabled device, mouseenter/leave are fired as
        // part of the mouse compatibility events on first tap - the carousel
        // would stop cycling until user tapped out of it;
        // here, we listen for touchend, explicitly pause the carousel
        // (as if it's the second time we tap on it, mouseenter compat event
        // is NOT fired) and after a timeout (to allow for mouse compatibility
        // events to fire) we explicitly restart cycling

this.pause();
        if (this.touchTimeout) {
          clearTimeout(this.touchTimeout);
        }

this.touchTimeout = setTimeout(
          (event) => this.cycle(event),
          TOUCHEVENT_COMPAT_WAIT + this._config.interval
        );
      }
    };

SelectorEngine.find(SELECTOR_ITEM_IMG, this._element).forEach((itemImg) => {
      EventHandler.on(itemImg, EVENT_DRAG_START, (event) => event.preventDefault());
    });

if (this._pointerEvent) {
      EventHandler.on(this._element, EVENT_POINTERDOWN, (event) => start(event));
      EventHandler.on(this._element, EVENT_POINTERUP, (event) => end(event));

this._element.classList.add(CLASS_NAME_POINTER_EVENT);
    } else {
      EventHandler.on(this._element, EVENT_TOUCHSTART, (event) => start(event));
      EventHandler.on(this._element, EVENT_TOUCHMOVE, (event) => move(event));
      EventHandler.on(this._element, EVENT_TOUCHEND, (event) => end(event));
    }
  }

_keydown(event) {
    if (/input|textarea/i.test(event.target.tagName)) {
      return;
    }

const direction = KEY_TO_DIRECTION[event.key];
    if (direction) {
      event.preventDefault();
      this._slide(direction);
    }
  }

_getItemIndex(element) {
    this._items =
      element && element.parentNode ? SelectorEngine.find(SELECTOR_ITEM, element.parentNode) : [];

return this._items.indexOf(element);
  }

_getItemByOrder(order, activeElement) {
    const isNext = order === ORDER_NEXT;
    return getNextActiveElement(this._items, activeElement, isNext, this._config.wrap);
  }

_triggerSlideEvent(relatedTarget, eventDirectionName) {
    const targetIndex = this._getItemIndex(relatedTarget);
    const fromIndex = this._getItemIndex(
      SelectorEngine.findOne(SELECTOR_ACTIVE_ITEM, this._element)
    );

return EventHandler.trigger(this._element, EVENT_SLIDE, {
      relatedTarget,
      direction: eventDirectionName,
      from: fromIndex,
      to: targetIndex,
    });
  }

_setActiveIndicatorElement(element) {
    if (this._indicatorsElement) {
      const activeIndicator = SelectorEngine.findOne(SELECTOR_ACTIVE, this._indicatorsElement);

activeIndicator.classList.remove(CLASS_NAME_ACTIVE);
      activeIndicator.removeAttribute('aria-current');

const indicators = SelectorEngine.find(SELECTOR_INDICATOR, this._indicatorsElement);

for (let i = 0; i < indicators.length; i++) {
        if (
          Number.parseInt(indicators[i].getAttribute('data-bs-slide-to'), 10) ===
          this._getItemIndex(element)
        ) {
          indicators[i].classList.add(CLASS_NAME_ACTIVE);
          indicators[i].setAttribute('aria-current', 'true');
          break;
        }
      }
    }
  }

_updateInterval() {
    const element =
      this._activeElement || SelectorEngine.findOne(SELECTOR_ACTIVE_ITEM, this._element);

if (!element) {
      return;
    }

const elementInterval = Number.parseInt(element.getAttribute('data-bs-interval'), 10);

if (elementInterval) {
      this._config.defaultInterval = this._config.defaultInterval || this._config.interval;
      this._config.interval = elementInterval;
    } else {
      this._config.interval = this._config.defaultInterval || this._config.interval;
    }
  }

_slide(directionOrOrder, element) {
    const order = this._directionToOrder(directionOrOrder);
    const activeElement = SelectorEngine.findOne(SELECTOR_ACTIVE_ITEM, this._element);
    const activeElementIndex = this._getItemIndex(activeElement);
    const nextElement = element || this._getItemByOrder(order, activeElement);

const nextElementIndex = this._getItemIndex(nextElement);
    const isCycling = Boolean(this._interval);

const isNext = order === ORDER_NEXT;
    const directionalClassName = isNext ? CLASS_NAME_START : CLASS_NAME_END;
    const orderClassName = isNext ? CLASS_NAME_NEXT : CLASS_NAME_PREV;
    const eventDirectionName = this._orderToDirection(order);

if (nextElement && nextElement.classList.contains(CLASS_NAME_ACTIVE)) {
      this._isSliding = false;
      return;
    }

if (this._isSliding) {
      return;
    }

const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
    if (slideEvent.defaultPrevented) {
      return;
    }

if (!activeElement || !nextElement) {
      // Some weirdness is happening, so we bail
      return;
    }

this._isSliding = true;

if (isCycling) {
      this.pause();
    }

this._setActiveIndicatorElement(nextElement);
    this._activeElement = nextElement;

const triggerSlidEvent = () => {
      EventHandler.trigger(this._element, EVENT_SLID, {
        relatedTarget: nextElement,
        direction: eventDirectionName,
        from: activeElementIndex,
        to: nextElementIndex,
      });
    };

if (this._element.classList.contains(CLASS_NAME_SLIDE)) {
      nextElement.classList.add(orderClassName);

reflow(nextElement);

activeElement.classList.add(directionalClassName);
      nextElement.classList.add(directionalClassName);

const completeCallBack = () => {
        nextElement.classList.remove(directionalClassName, orderClassName);
        nextElement.classList.add(CLASS_NAME_ACTIVE);

activeElement.classList.remove(CLASS_NAME_ACTIVE, orderClassName, directionalClassName);

this._isSliding = false;

setTimeout(triggerSlidEvent, 0);
      };

this._queueCallback(completeCallBack, activeElement, true);
    } else {
      activeElement.classList.remove(CLASS_NAME_ACTIVE);
      nextElement.classList.add(CLASS_NAME_ACTIVE);

this._isSliding = false;
      triggerSlidEvent();
    }

if (isCycling) {
      this.cycle();
    }
  }

_directionToOrder(direction) {
    if (![DIRECTION_RIGHT, DIRECTION_LEFT].includes(direction)) {
      return direction;
    }

if (isRTL()) {
      return direction === DIRECTION_LEFT ? ORDER_PREV : ORDER_NEXT;
    }

return direction === DIRECTION_LEFT ? ORDER_NEXT : ORDER_PREV;
  }

_orderToDirection(order) {
    if (![ORDER_NEXT, ORDER_PREV].includes(order)) {
      return order;
    }

if (isRTL()) {
      return order === ORDER_PREV ? DIRECTION_LEFT : DIRECTION_RIGHT;
    }

return order === ORDER_PREV ? DIRECTION_RIGHT : DIRECTION_LEFT;
  }

// Static

static carouselInterface(element, config) {
    const data = Carousel.getOrCreateInstance(element, config);

let { _config } = data;
    if (typeof config === 'object') {
      _config = {
        ..._config,
        ...config,
      };
    }

const action = typeof config === 'string' ? config : _config.slide;

if (typeof config === 'number') {
      data.to(config);
    } else if (typeof action === 'string') {
      if (typeof data[action] === 'undefined') {
        throw new TypeError(`No method named "${action}"`);
      }

data[action]();
    } else if (_config.interval && _config.ride) {
      data.pause();
      data.cycle();
    }
  }

static jQueryInterface(config) {
    return this.each(function () {
      Carousel.carouselInterface(this, config);
    });
  }

static dataApiClickHandler(event) {
    const target = getElementFromSelector(this);

if (!target || !target.classList.contains(CLASS_NAME_CAROUSEL)) {
      return;
    }

const config = {
      ...Manipulator.getDataAttributes(target),
      ...Manipulator.getDataAttributes(this),
    };
    const slideIndex = this.getAttribute('data-bs-slide-to');

if (slideIndex) {
      config.interval = false;
    }

Carousel.carouselInterface(target, config);

if (slideIndex) {
      Carousel.getInstance(target).to(slideIndex);
    }

event.preventDefault();
  }
}

/**
 * ------------------------------------------------------------------------
 * Data Api implementation
 * ------------------------------------------------------------------------
 */

EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_SLIDE, Carousel.dataApiClickHandler);

EventHandler.on(window, EVENT_LOAD_DATA_API, () => {
  const carousels = SelectorEngine.find(SELECTOR_DATA_RIDE);

for (let i = 0, len = carousels.length; i < len; i++) {
    Carousel.carouselInterface(carousels[i], Carousel.getInstance(carousels[i]));
  }
});

/**
 * ------------------------------------------------------------------------
 * jQuery
 * ------------------------------------------------------------------------
 * add .Carousel to jQuery only if jQuery is present
 */

defineJQueryPlugin(Carousel);

export default Carousel;

${this.title}

Code Editor : carousel.js