in Hands-on lab/lab-files/BigDataTravel/BigDataTravel/Scripts/bootstrap.bundle.js [663:1152]
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 = this._element.querySelector(SELECTOR_INDICATORS);
this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent);
this._addEventListeners();
} // Getters
var _proto = Carousel.prototype;
// Public
_proto.next = function next() {
if (!this._isSliding) {
this._slide(DIRECTION_NEXT);
}
};
_proto.nextWhenVisible = function nextWhenVisible() {
var $element = $__default['default'](this._element); // Don't call next when the page isn't visible
// or the carousel or its parent isn't visible
if (!document.hidden && $element.is(':visible') && $element.css('visibility') !== 'hidden') {
this.next();
}
};
_proto.prev = function prev() {
if (!this._isSliding) {
this._slide(DIRECTION_PREV);
}
};
_proto.pause = function pause(event) {
if (!event) {
this._isPaused = true;
}
if (this._element.querySelector(SELECTOR_NEXT_PREV)) {
Util.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.interval && !this._isPaused) {
this._updateInterval();
this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
}
};
_proto.to = function to(index) {
var _this = this;
this._activeElement = this._element.querySelector(SELECTOR_ACTIVE_ITEM);
var activeIndex = this._getItemIndex(this._activeElement);
if (index > this._items.length - 1 || index < 0) {
return;
}
if (this._isSliding) {
$__default['default'](this._element).one(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() {
$__default['default'](this._element).off(EVENT_KEY$2);
$__default['default'].removeData(this._element, DATA_KEY$2);
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);
Util.typeCheckConfig(NAME$2, 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) {
$__default['default'](this._element).on(EVENT_KEYDOWN, function (event) {
return _this2._keydown(event);
});
}
if (this._config.pause === 'hover') {
$__default['default'](this._element).on(EVENT_MOUSEENTER, function (event) {
return _this2.pause(event);
}).on(EVENT_MOUSELEAVE, function (event) {
return _this2.cycle(event);
});
}
if (this._config.touch) {
this._addTouchEventListeners();
}
};
_proto._addTouchEventListeners = function _addTouchEventListeners() {
var _this3 = this;
if (!this._touchSupported) {
return;
}
var start = function start(event) {
if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
_this3.touchStartX = event.originalEvent.clientX;
} else if (!_this3._pointerEvent) {
_this3.touchStartX = event.originalEvent.touches[0].clientX;
}
};
var move = function move(event) {
// ensure swiping with one touch and not pinching
if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
_this3.touchDeltaX = 0;
} else {
_this3.touchDeltaX = event.originalEvent.touches[0].clientX - _this3.touchStartX;
}
};
var end = function end(event) {
if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
_this3.touchDeltaX = event.originalEvent.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);
}
};
$__default['default'](this._element.querySelectorAll(SELECTOR_ITEM_IMG)).on(EVENT_DRAG_START, function (e) {
return e.preventDefault();
});
if (this._pointerEvent) {
$__default['default'](this._element).on(EVENT_POINTERDOWN, function (event) {
return start(event);
});
$__default['default'](this._element).on(EVENT_POINTERUP, function (event) {
return end(event);
});
this._element.classList.add(CLASS_NAME_POINTER_EVENT);
} else {
$__default['default'](this._element).on(EVENT_TOUCHSTART, function (event) {
return start(event);
});
$__default['default'](this._element).on(EVENT_TOUCHMOVE, function (event) {
return move(event);
});
$__default['default'](this._element).on(EVENT_TOUCHEND, function (event) {
return end(event);
});
}
};
_proto._keydown = function _keydown(event) {
if (/input|textarea/i.test(event.target.tagName)) {
return;
}
switch (event.which) {
case ARROW_LEFT_KEYCODE:
event.preventDefault();
this.prev();
break;
case ARROW_RIGHT_KEYCODE:
event.preventDefault();
this.next();
break;
}
};
_proto._getItemIndex = function _getItemIndex(element) {
this._items = element && element.parentNode ? [].slice.call(element.parentNode.querySelectorAll(SELECTOR_ITEM)) : [];
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(this._element.querySelector(SELECTOR_ACTIVE_ITEM));
var slideEvent = $__default['default'].Event(EVENT_SLIDE, {
relatedTarget: relatedTarget,
direction: eventDirectionName,
from: fromIndex,
to: targetIndex
});
$__default['default'](this._element).trigger(slideEvent);
return slideEvent;
};
_proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
if (this._indicatorsElement) {
var indicators = [].slice.call(this._indicatorsElement.querySelectorAll(SELECTOR_ACTIVE$1));
$__default['default'](indicators).removeClass(CLASS_NAME_ACTIVE$1);
var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
if (nextIndicator) {
$__default['default'](nextIndicator).addClass(CLASS_NAME_ACTIVE$1);
}
}
};
_proto._updateInterval = function _updateInterval() {
var element = this._activeElement || this._element.querySelector(SELECTOR_ACTIVE_ITEM);
if (!element) {
return;
}
var elementInterval = parseInt(element.getAttribute('data-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;
}
};
_proto._slide = function _slide(direction, element) {
var _this4 = this;
var activeElement = this._element.querySelector(SELECTOR_ACTIVE_ITEM);
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 && $__default['default'](nextElement).hasClass(CLASS_NAME_ACTIVE$1)) {
this._isSliding = false;
return;
}
var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
if (slideEvent.isDefaultPrevented()) {
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;
var slidEvent = $__default['default'].Event(EVENT_SLID, {
relatedTarget: nextElement,
direction: eventDirectionName,
from: activeElementIndex,
to: nextElementIndex
});
if ($__default['default'](this._element).hasClass(CLASS_NAME_SLIDE)) {
$__default['default'](nextElement).addClass(orderClassName);
Util.reflow(nextElement);
$__default['default'](activeElement).addClass(directionalClassName);
$__default['default'](nextElement).addClass(directionalClassName);
var transitionDuration = Util.getTransitionDurationFromElement(activeElement);
$__default['default'](activeElement).one(Util.TRANSITION_END, function () {
$__default['default'](nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(CLASS_NAME_ACTIVE$1);
$__default['default'](activeElement).removeClass(CLASS_NAME_ACTIVE$1 + " " + orderClassName + " " + directionalClassName);
_this4._isSliding = false;
setTimeout(function () {
return $__default['default'](_this4._element).trigger(slidEvent);
}, 0);
}).emulateTransitionEnd(transitionDuration);
} else {
$__default['default'](activeElement).removeClass(CLASS_NAME_ACTIVE$1);
$__default['default'](nextElement).addClass(CLASS_NAME_ACTIVE$1);
this._isSliding = false;
$__default['default'](this._element).trigger(slidEvent);
}
if (isCycling) {
this.cycle();
}
} // Static
;
Carousel._jQueryInterface = function _jQueryInterface(config) {
return this.each(function () {
var data = $__default['default'](this).data(DATA_KEY$2);
var _config = _extends({}, Default, $__default['default'](this).data());
if (typeof config === 'object') {
_config = _extends({}, _config, config);
}
var action = typeof config === 'string' ? config : _config.slide;
if (!data) {
data = new Carousel(this, _config);
$__default['default'](this).data(DATA_KEY$2, data);
}
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._dataApiClickHandler = function _dataApiClickHandler(event) {
var selector = Util.getSelectorFromElement(this);
if (!selector) {
return;
}
var target = $__default['default'](selector)[0];
if (!target || !$__default['default'](target).hasClass(CLASS_NAME_CAROUSEL)) {
return;
}
var config = _extends({}, $__default['default'](target).data(), $__default['default'](this).data());
var slideIndex = this.getAttribute('data-slide-to');
if (slideIndex) {
config.interval = false;
}
Carousel._jQueryInterface.call($__default['default'](target), config);
if (slideIndex) {
$__default['default'](target).data(DATA_KEY$2).to(slideIndex);
}
event.preventDefault();
};
_createClass(Carousel, null, [{
key: "VERSION",
get: function get() {
return VERSION$2;
}
}, {
key: "Default",
get: function get() {
return Default;
}
}]);
return Carousel;
}();