1
0
Fork 0
mirror of https://github.com/twbs/bootstrap.git synced 2022-11-09 12:25:43 -05:00
twbs--bootstrap/js/dist/carousel.js
2020-09-29 18:33:00 +03:00

747 lines
25 KiB
JavaScript

/*!
* Bootstrap carousel.js v5.0.0-alpha2 (https://getbootstrap.com/)
* Copyright 2011-2020 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
*/
(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) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Carousel = factory(global.Data, global.EventHandler, global.Manipulator, global.SelectorEngine));
}(this, (function (Data, EventHandler, Manipulator, SelectorEngine) { 'use strict';
function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
var Data__default = /*#__PURE__*/_interopDefaultLegacy(Data);
var EventHandler__default = /*#__PURE__*/_interopDefaultLegacy(EventHandler);
var Manipulator__default = /*#__PURE__*/_interopDefaultLegacy(Manipulator);
var SelectorEngine__default = /*#__PURE__*/_interopDefaultLegacy(SelectorEngine);
/**
* --------------------------------------------------------------------------
* Bootstrap (v5.0.0-alpha2): util/index.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
var MILLISECONDS_MULTIPLIER = 1000;
var TRANSITION_END = 'transitionend'; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
var toType = function toType(obj) {
if (obj === null || obj === undefined) {
return "" + obj;
}
return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
};
var getSelector = function getSelector(element) {
var selector = element.getAttribute('data-target');
if (!selector || selector === '#') {
var hrefAttr = element.getAttribute('href');
selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : null;
}
return selector;
};
var getElementFromSelector = function getElementFromSelector(element) {
var selector = getSelector(element);
return selector ? document.querySelector(selector) : null;
};
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) {
element.dispatchEvent(new Event(TRANSITION_END));
};
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 isVisible = function isVisible(element) {
if (!element) {
return false;
}
if (element.style && element.parentNode && element.parentNode.style) {
var elementStyle = getComputedStyle(element);
var parentNodeStyle = getComputedStyle(element.parentNode);
return elementStyle.display !== 'none' && parentNodeStyle.display !== 'none' && elementStyle.visibility !== 'hidden';
}
return false;
};
var reflow = function reflow(element) {
return element.offsetHeight;
};
var getjQuery = function getjQuery() {
var _window = window,
jQuery = _window.jQuery;
if (jQuery && !document.body.hasAttribute('data-no-jquery')) {
return jQuery;
}
return null;
};
function _extends() { _extends = Object.assign || 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 _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; }
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
var NAME = 'carousel';
var VERSION = '5.0.0-alpha2';
var DATA_KEY = 'bs.carousel';
var EVENT_KEY = "." + DATA_KEY;
var DATA_API_KEY = '.data-api';
var ARROW_LEFT_KEY = 'ArrowLeft';
var ARROW_RIGHT_KEY = 'ArrowRight';
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';
var DIRECTION_PREV = 'prev';
var DIRECTION_LEFT = 'left';
var DIRECTION_RIGHT = 'right';
var EVENT_SLIDE = "slide" + EVENT_KEY;
var EVENT_SLID = "slid" + EVENT_KEY;
var EVENT_KEYDOWN = "keydown" + EVENT_KEY;
var EVENT_MOUSEENTER = "mouseenter" + EVENT_KEY;
var EVENT_MOUSELEAVE = "mouseleave" + EVENT_KEY;
var EVENT_TOUCHSTART = "touchstart" + EVENT_KEY;
var EVENT_TOUCHMOVE = "touchmove" + EVENT_KEY;
var EVENT_TOUCHEND = "touchend" + EVENT_KEY;
var EVENT_POINTERDOWN = "pointerdown" + EVENT_KEY;
var EVENT_POINTERUP = "pointerup" + EVENT_KEY;
var EVENT_DRAG_START = "dragstart" + EVENT_KEY;
var EVENT_LOAD_DATA_API = "load" + EVENT_KEY + DATA_API_KEY;
var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
var CLASS_NAME_CAROUSEL = 'carousel';
var CLASS_NAME_ACTIVE = 'active';
var CLASS_NAME_SLIDE = 'slide';
var CLASS_NAME_RIGHT = 'carousel-item-right';
var CLASS_NAME_LEFT = 'carousel-item-left';
var CLASS_NAME_NEXT = 'carousel-item-next';
var CLASS_NAME_PREV = 'carousel-item-prev';
var CLASS_NAME_POINTER_EVENT = 'pointer-event';
var SELECTOR_ACTIVE = '.active';
var SELECTOR_ACTIVE_ITEM = '.active.carousel-item';
var SELECTOR_ITEM = '.carousel-item';
var SELECTOR_ITEM_IMG = '.carousel-item img';
var SELECTOR_NEXT_PREV = '.carousel-item-next, .carousel-item-prev';
var SELECTOR_INDICATORS = '.carousel-indicators';
var SELECTOR_DATA_SLIDE = '[data-slide], [data-slide-to]';
var SELECTOR_DATA_RIDE = '[data-ride="carousel"]';
var PointerType = {
TOUCH: 'touch',
PEN: 'pen'
};
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
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;
this._indicatorsElement = SelectorEngine__default['default'].findOne(SELECTOR_INDICATORS, this._element);
this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
this._pointerEvent = Boolean(window.PointerEvent);
this._addEventListeners();
Data__default['default'].setData(element, DATA_KEY, this);
} // Getters
var _proto = Carousel.prototype;
// Public
_proto.next = function next() {
if (!this._isSliding) {
this._slide(DIRECTION_NEXT);
}
};
_proto.nextWhenVisible = function 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();
}
};
_proto.prev = function prev() {
if (!this._isSliding) {
this._slide(DIRECTION_PREV);
}
};
_proto.pause = function pause(event) {
if (!event) {
this._isPaused = true;
}
if (SelectorEngine__default['default'].findOne(SELECTOR_NEXT_PREV, this._element)) {
triggerTransitionEnd(this._element);
this.cycle(true);
}
clearInterval(this._interval);
this._interval = null;
};
_proto.cycle = function 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._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
}
};
_proto.to = function to(index) {
var _this = this;
this._activeElement = SelectorEngine__default['default'].findOne(SELECTOR_ACTIVE_ITEM, this._element);
var activeIndex = this._getItemIndex(this._activeElement);
if (index > this._items.length - 1 || index < 0) {
return;
}
if (this._isSliding) {
EventHandler__default['default'].one(this._element, EVENT_SLID, function () {
return _this.to(index);
});
return;
}
if (activeIndex === index) {
this.pause();
this.cycle();
return;
}
var direction = index > activeIndex ? DIRECTION_NEXT : DIRECTION_PREV;
this._slide(direction, this._items[index]);
};
_proto.dispose = function dispose() {
EventHandler__default['default'].off(this._element, EVENT_KEY);
Data__default['default'].removeData(this._element, DATA_KEY);
this._items = null;
this._config = null;
this._element = null;
this._interval = null;
this._isPaused = null;
this._isSliding = null;
this._activeElement = null;
this._indicatorsElement = null;
} // Private
;
_proto._getConfig = function _getConfig(config) {
config = _extends({}, Default, config);
typeCheckConfig(NAME, config, DefaultType);
return config;
};
_proto._handleSwipe = function _handleSwipe() {
var absDeltax = Math.abs(this.touchDeltaX);
if (absDeltax <= SWIPE_THRESHOLD) {
return;
}
var direction = absDeltax / this.touchDeltaX;
this.touchDeltaX = 0; // swipe left
if (direction > 0) {
this.prev();
} // swipe right
if (direction < 0) {
this.next();
}
};
_proto._addEventListeners = function _addEventListeners() {
var _this2 = this;
if (this._config.keyboard) {
EventHandler__default['default'].on(this._element, EVENT_KEYDOWN, function (event) {
return _this2._keydown(event);
});
}
if (this._config.pause === 'hover') {
EventHandler__default['default'].on(this._element, EVENT_MOUSEENTER, function (event) {
return _this2.pause(event);
});
EventHandler__default['default'].on(this._element, EVENT_MOUSELEAVE, function (event) {
return _this2.cycle(event);
});
}
if (this._config.touch && this._touchSupported) {
this._addTouchEventListeners();
}
};
_proto._addTouchEventListeners = function _addTouchEventListeners() {
var _this3 = this;
var start = function start(event) {
if (_this3._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
_this3.touchStartX = event.clientX;
} else if (!_this3._pointerEvent) {
_this3.touchStartX = event.touches[0].clientX;
}
};
var move = function move(event) {
// ensure swiping with one touch and not pinching
if (event.touches && event.touches.length > 1) {
_this3.touchDeltaX = 0;
} else {
_this3.touchDeltaX = event.touches[0].clientX - _this3.touchStartX;
}
};
var end = function end(event) {
if (_this3._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
_this3.touchDeltaX = event.clientX - _this3.touchStartX;
}
_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();
if (_this3.touchTimeout) {
clearTimeout(_this3.touchTimeout);
}
_this3.touchTimeout = setTimeout(function (event) {
return _this3.cycle(event);
}, TOUCHEVENT_COMPAT_WAIT + _this3._config.interval);
}
};
SelectorEngine__default['default'].find(SELECTOR_ITEM_IMG, this._element).forEach(function (itemImg) {
EventHandler__default['default'].on(itemImg, EVENT_DRAG_START, function (e) {
return e.preventDefault();
});
});
if (this._pointerEvent) {
EventHandler__default['default'].on(this._element, EVENT_POINTERDOWN, function (event) {
return start(event);
});
EventHandler__default['default'].on(this._element, EVENT_POINTERUP, function (event) {
return end(event);
});
this._element.classList.add(CLASS_NAME_POINTER_EVENT);
} else {
EventHandler__default['default'].on(this._element, EVENT_TOUCHSTART, function (event) {
return start(event);
});
EventHandler__default['default'].on(this._element, EVENT_TOUCHMOVE, function (event) {
return move(event);
});
EventHandler__default['default'].on(this._element, EVENT_TOUCHEND, function (event) {
return end(event);
});
}
};
_proto._keydown = function _keydown(event) {
if (/input|textarea/i.test(event.target.tagName)) {
return;
}
switch (event.key) {
case ARROW_LEFT_KEY:
event.preventDefault();
this.prev();
break;
case ARROW_RIGHT_KEY:
event.preventDefault();
this.next();
break;
}
};
_proto._getItemIndex = function _getItemIndex(element) {
this._items = element && element.parentNode ? SelectorEngine__default['default'].find(SELECTOR_ITEM, element.parentNode) : [];
return this._items.indexOf(element);
};
_proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
var isNextDirection = direction === DIRECTION_NEXT;
var isPrevDirection = direction === DIRECTION_PREV;
var activeIndex = this._getItemIndex(activeElement);
var lastItemIndex = this._items.length - 1;
var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;
if (isGoingToWrap && !this._config.wrap) {
return activeElement;
}
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];
};
_proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
var targetIndex = this._getItemIndex(relatedTarget);
var fromIndex = this._getItemIndex(SelectorEngine__default['default'].findOne(SELECTOR_ACTIVE_ITEM, this._element));
return EventHandler__default['default'].trigger(this._element, EVENT_SLIDE, {
relatedTarget: relatedTarget,
direction: eventDirectionName,
from: fromIndex,
to: targetIndex
});
};
_proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
if (this._indicatorsElement) {
var indicators = SelectorEngine__default['default'].find(SELECTOR_ACTIVE, this._indicatorsElement);
for (var i = 0; i < indicators.length; i++) {
indicators[i].classList.remove(CLASS_NAME_ACTIVE);
}
var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
if (nextIndicator) {
nextIndicator.classList.add(CLASS_NAME_ACTIVE);
}
}
};
_proto._slide = function _slide(direction, element) {
var _this4 = this;
var activeElement = SelectorEngine__default['default'].findOne(SELECTOR_ACTIVE_ITEM, this._element);
var activeElementIndex = this._getItemIndex(activeElement);
var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);
var nextElementIndex = this._getItemIndex(nextElement);
var isCycling = Boolean(this._interval);
var directionalClassName;
var orderClassName;
var eventDirectionName;
if (direction === DIRECTION_NEXT) {
directionalClassName = CLASS_NAME_LEFT;
orderClassName = CLASS_NAME_NEXT;
eventDirectionName = DIRECTION_LEFT;
} else {
directionalClassName = CLASS_NAME_RIGHT;
orderClassName = CLASS_NAME_PREV;
eventDirectionName = DIRECTION_RIGHT;
}
if (nextElement && nextElement.classList.contains(CLASS_NAME_ACTIVE)) {
this._isSliding = false;
return;
}
var 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);
if (this._element.classList.contains(CLASS_NAME_SLIDE)) {
nextElement.classList.add(orderClassName);
reflow(nextElement);
activeElement.classList.add(directionalClassName);
nextElement.classList.add(directionalClassName);
var nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10);
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;
}
var transitionDuration = getTransitionDurationFromElement(activeElement);
EventHandler__default['default'].one(activeElement, TRANSITION_END, function () {
nextElement.classList.remove(directionalClassName, orderClassName);
nextElement.classList.add(CLASS_NAME_ACTIVE);
activeElement.classList.remove(CLASS_NAME_ACTIVE, orderClassName, directionalClassName);
_this4._isSliding = false;
setTimeout(function () {
EventHandler__default['default'].trigger(_this4._element, EVENT_SLID, {
relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
});
}, 0);
});
emulateTransitionEnd(activeElement, transitionDuration);
} else {
activeElement.classList.remove(CLASS_NAME_ACTIVE);
nextElement.classList.add(CLASS_NAME_ACTIVE);
this._isSliding = false;
EventHandler__default['default'].trigger(this._element, EVENT_SLID, {
relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
});
}
if (isCycling) {
this.cycle();
}
} // Static
;
Carousel.carouselInterface = function carouselInterface(element, config) {
var data = Data__default['default'].getData(element, DATA_KEY);
var _config = _extends({}, Default, Manipulator__default['default'].getDataAttributes(element));
if (typeof config === 'object') {
_config = _extends({}, _config, config);
}
var action = typeof config === 'string' ? config : _config.slide;
if (!data) {
data = new Carousel(element, _config);
}
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();
}
};
Carousel.jQueryInterface = function jQueryInterface(config) {
return this.each(function () {
Carousel.carouselInterface(this, config);
});
};
Carousel.dataApiClickHandler = function dataApiClickHandler(event) {
var target = getElementFromSelector(this);
if (!target || !target.classList.contains(CLASS_NAME_CAROUSEL)) {
return;
}
var config = _extends({}, Manipulator__default['default'].getDataAttributes(target), Manipulator__default['default'].getDataAttributes(this));
var slideIndex = this.getAttribute('data-slide-to');
if (slideIndex) {
config.interval = false;
}
Carousel.carouselInterface(target, config);
if (slideIndex) {
Data__default['default'].getData(target, DATA_KEY).to(slideIndex);
}
event.preventDefault();
};
Carousel.getInstance = function getInstance(element) {
return Data__default['default'].getData(element, DATA_KEY);
};
_createClass(Carousel, null, [{
key: "VERSION",
get: function get() {
return VERSION;
}
}, {
key: "Default",
get: function get() {
return Default;
}
}]);
return Carousel;
}();
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_SLIDE, Carousel.dataApiClickHandler);
EventHandler__default['default'].on(window, EVENT_LOAD_DATA_API, function () {
var carousels = SelectorEngine__default['default'].find(SELECTOR_DATA_RIDE);
for (var i = 0, len = carousels.length; i < len; i++) {
Carousel.carouselInterface(carousels[i], Data__default['default'].getData(carousels[i], DATA_KEY));
}
});
var $ = getjQuery();
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
* add .carousel to jQuery only if jQuery is present
*/
/* istanbul ignore if */
if ($) {
var JQUERY_NO_CONFLICT = $.fn[NAME];
$.fn[NAME] = Carousel.jQueryInterface;
$.fn[NAME].Constructor = Carousel;
$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT;
return Carousel.jQueryInterface;
};
}
return Carousel;
})));
//# sourceMappingURL=carousel.js.map