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Bootstrap/js/dist/carousel.js

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/*!
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* Bootstrap carousel.js v4.3.1 (https://getbootstrap.com/)
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* Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
*/
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(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('../dom/data.js'), require('../dom/event-handler.js'), require('../dom/manipulator.js'), require('../dom/selector-engine.js')) :
typeof define === 'function' && define.amd ? define(['../dom/data.js', '../dom/event-handler.js', '../dom/manipulator.js', '../dom/selector-engine.js'], factory) :
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(global = global || self, global.Carousel = factory(global.Data, global.EventHandler, global.Manipulator, global.SelectorEngine));
}(this, function (Data, EventHandler, Manipulator, SelectorEngine) { 'use strict';
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Data = Data && Data.hasOwnProperty('default') ? Data['default'] : Data;
EventHandler = EventHandler && EventHandler.hasOwnProperty('default') ? EventHandler['default'] : EventHandler;
Manipulator = Manipulator && Manipulator.hasOwnProperty('default') ? Manipulator['default'] : Manipulator;
SelectorEngine = SelectorEngine && SelectorEngine.hasOwnProperty('default') ? SelectorEngine['default'] : SelectorEngine;
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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);
return Constructor;
}
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
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return obj;
}
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function ownKeys(object, enumerableOnly) {
var keys = Object.keys(object);
if (Object.getOwnPropertySymbols) {
var symbols = Object.getOwnPropertySymbols(object);
if (enumerableOnly) symbols = symbols.filter(function (sym) {
return Object.getOwnPropertyDescriptor(object, sym).enumerable;
});
keys.push.apply(keys, symbols);
}
return keys;
}
function _objectSpread2(target) {
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for (var i = 1; i < arguments.length; i++) {
var source = arguments[i] != null ? arguments[i] : {};
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if (i % 2) {
ownKeys(source, true).forEach(function (key) {
_defineProperty(target, key, source[key]);
});
} else if (Object.getOwnPropertyDescriptors) {
Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
} else {
ownKeys(source).forEach(function (key) {
Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
});
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}
}
return target;
}
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/**
* --------------------------------------------------------------------------
* Bootstrap (v4.3.1): util/index.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
var MILLISECONDS_MULTIPLIER = 1000;
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var TRANSITION_END = 'transitionend'; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
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var toType = function toType(obj) {
return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
};
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var getSelector = function getSelector(element) {
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var selector = element.getAttribute('data-target');
if (!selector || selector === '#') {
var hrefAttr = element.getAttribute('href');
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selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : null;
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}
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return selector;
};
var getElementFromSelector = function getElementFromSelector(element) {
var selector = getSelector(element);
return selector ? document.querySelector(selector) : null;
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};
var getTransitionDurationFromElement = function getTransitionDurationFromElement(element) {
if (!element) {
return 0;
} // Get transition-duration of the element
var _window$getComputedSt = window.getComputedStyle(element),
transitionDuration = _window$getComputedSt.transitionDuration,
transitionDelay = _window$getComputedSt.transitionDelay;
var floatTransitionDuration = parseFloat(transitionDuration);
var floatTransitionDelay = parseFloat(transitionDelay); // Return 0 if element or transition duration is not found
if (!floatTransitionDuration && !floatTransitionDelay) {
return 0;
} // If multiple durations are defined, take the first
transitionDuration = transitionDuration.split(',')[0];
transitionDelay = transitionDelay.split(',')[0];
return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER;
};
var triggerTransitionEnd = function triggerTransitionEnd(element) {
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var evt = document.createEvent('HTMLEvents');
evt.initEvent(TRANSITION_END, true, true);
element.dispatchEvent(evt);
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};
var isElement = function isElement(obj) {
return (obj[0] || obj).nodeType;
};
var emulateTransitionEnd = function emulateTransitionEnd(element, duration) {
var called = false;
var durationPadding = 5;
var emulatedDuration = duration + durationPadding;
function listener() {
called = true;
element.removeEventListener(TRANSITION_END, listener);
}
element.addEventListener(TRANSITION_END, listener);
setTimeout(function () {
if (!called) {
triggerTransitionEnd(element);
}
}, emulatedDuration);
};
var typeCheckConfig = function typeCheckConfig(componentName, config, configTypes) {
Object.keys(configTypes).forEach(function (property) {
var expectedTypes = configTypes[property];
var value = config[property];
var valueType = value && isElement(value) ? 'element' : toType(value);
if (!new RegExp(expectedTypes).test(valueType)) {
throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
}
});
};
var makeArray = function makeArray(nodeList) {
if (!nodeList) {
return [];
}
return [].slice.call(nodeList);
};
var isVisible = function isVisible(element) {
if (!element) {
return false;
}
if (element.style && element.parentNode && element.parentNode.style) {
return element.style.display !== 'none' && element.parentNode.style.display !== 'none' && element.style.visibility !== 'hidden';
}
return false;
};
var reflow = function reflow(element) {
return element.offsetHeight;
};
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var getjQuery = function getjQuery() {
var _window = window,
jQuery = _window.jQuery;
if (jQuery && !document.body.hasAttribute('data-no-jquery')) {
return jQuery;
}
return null;
};
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/**
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* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
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*/
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var NAME = 'carousel';
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var VERSION = '4.3.1';
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var DATA_KEY = 'bs.carousel';
var EVENT_KEY = "." + DATA_KEY;
var DATA_API_KEY = '.data-api';
var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key
var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key
var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch
var SWIPE_THRESHOLD = 40;
var Default = {
interval: 5000,
keyboard: true,
slide: false,
pause: 'hover',
wrap: true,
touch: true
};
var DefaultType = {
interval: '(number|boolean)',
keyboard: 'boolean',
slide: '(boolean|string)',
pause: '(string|boolean)',
wrap: 'boolean',
touch: 'boolean'
};
var Direction = {
NEXT: 'next',
PREV: 'prev',
LEFT: 'left',
RIGHT: 'right'
};
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var Event = {
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SLIDE: "slide" + EVENT_KEY,
SLID: "slid" + EVENT_KEY,
KEYDOWN: "keydown" + EVENT_KEY,
MOUSEENTER: "mouseenter" + EVENT_KEY,
MOUSELEAVE: "mouseleave" + EVENT_KEY,
TOUCHSTART: "touchstart" + EVENT_KEY,
TOUCHMOVE: "touchmove" + EVENT_KEY,
TOUCHEND: "touchend" + EVENT_KEY,
POINTERDOWN: "pointerdown" + EVENT_KEY,
POINTERUP: "pointerup" + EVENT_KEY,
DRAG_START: "dragstart" + EVENT_KEY,
LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
};
var ClassName = {
CAROUSEL: 'carousel',
ACTIVE: 'active',
SLIDE: 'slide',
RIGHT: 'carousel-item-right',
LEFT: 'carousel-item-left',
NEXT: 'carousel-item-next',
PREV: 'carousel-item-prev',
ITEM: 'carousel-item',
POINTER_EVENT: 'pointer-event'
};
var Selector = {
ACTIVE: '.active',
ACTIVE_ITEM: '.active.carousel-item',
ITEM: '.carousel-item',
ITEM_IMG: '.carousel-item img',
NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
INDICATORS: '.carousel-indicators',
DATA_SLIDE: '[data-slide], [data-slide-to]',
DATA_RIDE: '[data-ride="carousel"]'
};
var PointerType = {
TOUCH: 'touch',
PEN: 'pen'
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/**
* ------------------------------------------------------------------------
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* Class Definition
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* ------------------------------------------------------------------------
*/
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};
var Carousel =
/*#__PURE__*/
function () {
function Carousel(element, config) {
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._element = element;
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this._indicatorsElement = SelectorEngine.findOne(Selector.INDICATORS, this._element);
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this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent);
this._addEventListeners();
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Data.setData(element, DATA_KEY, this);
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} // Getters
var _proto = Carousel.prototype;
// Public
_proto.next = function next() {
if (!this._isSliding) {
this._slide(Direction.NEXT);
}
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};
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_proto.nextWhenVisible = function nextWhenVisible() {
// Don't call next when the page isn't visible
// or the carousel or its parent isn't visible
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if (!document.hidden && isVisible(this._element)) {
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this.next();
}
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};
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_proto.prev = function prev() {
if (!this._isSliding) {
this._slide(Direction.PREV);
}
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};
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_proto.pause = function pause(event) {
if (!event) {
this._isPaused = true;
}
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if (SelectorEngine.findOne(Selector.NEXT_PREV, this._element)) {
triggerTransitionEnd(this._element);
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this.cycle(true);
}
clearInterval(this._interval);
this._interval = null;
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};
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_proto.cycle = function cycle(event) {
if (!event) {
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this._isPaused = false;
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}
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if (this._interval) {
clearInterval(this._interval);
this._interval = null;
}
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if (this._config && this._config.interval && !this._isPaused) {
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this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
}
};
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_proto.to = function to(index) {
var _this = this;
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this._activeElement = SelectorEngine.findOne(Selector.ACTIVE_ITEM, this._element);
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var activeIndex = this._getItemIndex(this._activeElement);
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if (index > this._items.length - 1 || index < 0) {
return;
}
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if (this._isSliding) {
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EventHandler.one(this._element, Event.SLID, function () {
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return _this.to(index);
});
return;
}
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if (activeIndex === index) {
this.pause();
this.cycle();
return;
}
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var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;
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this._slide(direction, this._items[index]);
};
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_proto.dispose = function dispose() {
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EventHandler.off(this._element, EVENT_KEY);
Data.removeData(this._element, DATA_KEY);
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this._items = null;
this._config = null;
this._element = null;
this._interval = null;
this._isPaused = null;
this._isSliding = null;
this._activeElement = null;
this._indicatorsElement = null;
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} // Private
;
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_proto._getConfig = function _getConfig(config) {
config = _objectSpread2({}, Default, {}, config);
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typeCheckConfig(NAME, config, DefaultType);
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return config;
};
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_proto._handleSwipe = function _handleSwipe() {
var absDeltax = Math.abs(this.touchDeltaX);
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if (absDeltax <= SWIPE_THRESHOLD) {
return;
}
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var direction = absDeltax / this.touchDeltaX;
this.touchDeltaX = 0; // swipe left
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if (direction > 0) {
this.prev();
} // swipe right
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if (direction < 0) {
this.next();
}
};
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_proto._addEventListeners = function _addEventListeners() {
var _this2 = this;
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if (this._config.keyboard) {
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EventHandler.on(this._element, Event.KEYDOWN, function (event) {
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return _this2._keydown(event);
});
}
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if (this._config.pause === 'hover') {
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EventHandler.on(this._element, Event.MOUSEENTER, function (event) {
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return _this2.pause(event);
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});
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EventHandler.on(this._element, Event.MOUSELEAVE, function (event) {
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return _this2.cycle(event);
});
}
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if (this._config.touch && this._touchSupported) {
this._addTouchEventListeners();
}
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};
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_proto._addTouchEventListeners = function _addTouchEventListeners() {
var _this3 = this;
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var start = function start(event) {
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if (_this3._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
_this3.touchStartX = event.clientX;
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} else if (!_this3._pointerEvent) {
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_this3.touchStartX = event.touches[0].clientX;
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}
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};
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var move = function move(event) {
// ensure swiping with one touch and not pinching
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if (event.touches && event.touches.length > 1) {
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_this3.touchDeltaX = 0;
} else {
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_this3.touchDeltaX = event.touches[0].clientX - _this3.touchStartX;
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}
};
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var end = function end(event) {
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if (_this3._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
_this3.touchDeltaX = event.clientX - _this3.touchStartX;
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}
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_this3._handleSwipe();
if (_this3._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
_this3.pause();
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if (_this3.touchTimeout) {
clearTimeout(_this3.touchTimeout);
}
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_this3.touchTimeout = setTimeout(function (event) {
return _this3.cycle(event);
}, TOUCHEVENT_COMPAT_WAIT + _this3._config.interval);
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}
};
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makeArray(SelectorEngine.find(Selector.ITEM_IMG, this._element)).forEach(function (itemImg) {
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EventHandler.on(itemImg, Event.DRAG_START, function (e) {
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return e.preventDefault();
});
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});
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if (this._pointerEvent) {
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EventHandler.on(this._element, Event.POINTERDOWN, function (event) {
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return start(event);
});
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EventHandler.on(this._element, Event.POINTERUP, function (event) {
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return end(event);
});
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this._element.classList.add(ClassName.POINTER_EVENT);
} else {
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EventHandler.on(this._element, Event.TOUCHSTART, function (event) {
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return start(event);
});
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EventHandler.on(this._element, Event.TOUCHMOVE, function (event) {
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return move(event);
});
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EventHandler.on(this._element, Event.TOUCHEND, function (event) {
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return end(event);
});
}
};
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_proto._keydown = function _keydown(event) {
if (/input|textarea/i.test(event.target.tagName)) {
return;
}
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switch (event.which) {
case ARROW_LEFT_KEYCODE:
event.preventDefault();
this.prev();
break;
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case ARROW_RIGHT_KEYCODE:
event.preventDefault();
this.next();
break;
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default:
}
};
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_proto._getItemIndex = function _getItemIndex(element) {
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this._items = element && element.parentNode ? makeArray(SelectorEngine.find(Selector.ITEM, element.parentNode)) : [];
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return this._items.indexOf(element);
};
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_proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
var isNextDirection = direction === Direction.NEXT;
var isPrevDirection = direction === Direction.PREV;
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var activeIndex = this._getItemIndex(activeElement);
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var lastItemIndex = this._items.length - 1;
var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;
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if (isGoingToWrap && !this._config.wrap) {
return activeElement;
}
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var delta = direction === Direction.PREV ? -1 : 1;
var itemIndex = (activeIndex + delta) % this._items.length;
return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
};
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_proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
var targetIndex = this._getItemIndex(relatedTarget);
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var fromIndex = this._getItemIndex(SelectorEngine.findOne(Selector.ACTIVE_ITEM, this._element));
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return EventHandler.trigger(this._element, Event.SLIDE, {
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relatedTarget: relatedTarget,
direction: eventDirectionName,
from: fromIndex,
to: targetIndex
});
};
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_proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
if (this._indicatorsElement) {
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var indicators = SelectorEngine.find(Selector.ACTIVE, this._indicatorsElement);
for (var i = 0; i < indicators.length; i++) {
indicators[i].classList.remove(ClassName.ACTIVE);
}
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var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
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if (nextIndicator) {
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nextIndicator.classList.add(ClassName.ACTIVE);
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}
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}
};
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_proto._slide = function _slide(direction, element) {
var _this4 = this;
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var activeElement = SelectorEngine.findOne(Selector.ACTIVE_ITEM, this._element);
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var activeElementIndex = this._getItemIndex(activeElement);
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var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);
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var nextElementIndex = this._getItemIndex(nextElement);
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var isCycling = Boolean(this._interval);
var directionalClassName;
var orderClassName;
var eventDirectionName;
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if (direction === Direction.NEXT) {
directionalClassName = ClassName.LEFT;
orderClassName = ClassName.NEXT;
eventDirectionName = Direction.LEFT;
} else {
directionalClassName = ClassName.RIGHT;
orderClassName = ClassName.PREV;
eventDirectionName = Direction.RIGHT;
}
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if (nextElement && nextElement.classList.contains(ClassName.ACTIVE)) {
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this._isSliding = false;
return;
}
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var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
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if (slideEvent.defaultPrevented) {
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return;
}
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if (!activeElement || !nextElement) {
// Some weirdness is happening, so we bail
return;
}
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this._isSliding = true;
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if (isCycling) {
this.pause();
}
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this._setActiveIndicatorElement(nextElement);
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if (this._element.classList.contains(ClassName.SLIDE)) {
nextElement.classList.add(orderClassName);
reflow(nextElement);
activeElement.classList.add(directionalClassName);
nextElement.classList.add(directionalClassName);
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var nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10);
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if (nextElementInterval) {
this._config.defaultInterval = this._config.defaultInterval || this._config.interval;
this._config.interval = nextElementInterval;
} else {
this._config.interval = this._config.defaultInterval || this._config.interval;
}
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var transitionDuration = getTransitionDurationFromElement(activeElement);
EventHandler.one(activeElement, TRANSITION_END, function () {
nextElement.classList.remove(directionalClassName);
nextElement.classList.remove(orderClassName);
nextElement.classList.add(ClassName.ACTIVE);
activeElement.classList.remove(ClassName.ACTIVE);
activeElement.classList.remove(orderClassName);
activeElement.classList.remove(directionalClassName);
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_this4._isSliding = false;
setTimeout(function () {
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EventHandler.trigger(_this4._element, Event.SLID, {
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relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
});
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}, 0);
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});
emulateTransitionEnd(activeElement, transitionDuration);
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} else {
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activeElement.classList.remove(ClassName.ACTIVE);
nextElement.classList.add(ClassName.ACTIVE);
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this._isSliding = false;
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EventHandler.trigger(this._element, Event.SLID, {
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relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
});
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}
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if (isCycling) {
this.cycle();
}
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} // Static
;
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Carousel.carouselInterface = function carouselInterface(element, config) {
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var data = Data.getData(element, DATA_KEY);
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var _config = _objectSpread2({}, Default, {}, Manipulator.getDataAttributes(element));
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if (typeof config === 'object') {
_config = _objectSpread2({}, _config, {}, config);
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}
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var action = typeof config === 'string' ? config : _config.slide;
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if (!data) {
data = new Carousel(element, _config);
}
if (typeof config === 'number') {
data.to(config);
} else if (typeof action === 'string') {
if (typeof data[action] === 'undefined') {
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throw new TypeError("No method named \"" + action + "\"");
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}
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data[action]();
} else if (_config.interval && _config.ride) {
data.pause();
data.cycle();
}
};
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Carousel.jQueryInterface = function jQueryInterface(config) {
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return this.each(function () {
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Carousel.carouselInterface(this, config);
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});
};
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Carousel.dataApiClickHandler = function dataApiClickHandler(event) {
var target = getElementFromSelector(this);
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if (!target || !target.classList.contains(ClassName.CAROUSEL)) {
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return;
}
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var config = _objectSpread2({}, Manipulator.getDataAttributes(target), {}, Manipulator.getDataAttributes(this));
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var slideIndex = this.getAttribute('data-slide-to');
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if (slideIndex) {
config.interval = false;
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}
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Carousel.carouselInterface(target, config);
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if (slideIndex) {
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Data.getData(target, DATA_KEY).to(slideIndex);
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}
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event.preventDefault();
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};
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Carousel.getInstance = function getInstance(element) {
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return Data.getData(element, DATA_KEY);
};
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_createClass(Carousel, null, [{
key: "VERSION",
get: function get() {
return VERSION;
}
}, {
key: "Default",
get: function get() {
return Default;
}
}]);
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return Carousel;
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}();
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
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EventHandler.on(document, Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel.dataApiClickHandler);
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EventHandler.on(window, Event.LOAD_DATA_API, function () {
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var carousels = makeArray(SelectorEngine.find(Selector.DATA_RIDE));
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for (var i = 0, len = carousels.length; i < len; i++) {
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Carousel.carouselInterface(carousels[i], Data.getData(carousels[i], DATA_KEY));
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}
});
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var $ = getjQuery();
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/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
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* add .carousel to jQuery only if jQuery is present
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*/
/* istanbul ignore if */
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if ($) {
var JQUERY_NO_CONFLICT = $.fn[NAME];
$.fn[NAME] = Carousel.jQueryInterface;
$.fn[NAME].Constructor = Carousel;
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$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT;
return Carousel.jQueryInterface;
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};
}
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return Carousel;
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}));
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//# sourceMappingURL=carousel.js.map