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Bootstrap/js/dist/carousel.js

479 lines
14 KiB
JavaScript

'use strict';
var _createClass = (function () { 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
/**
* --------------------------------------------------------------------------
* Bootstrap (v4.0.0-alpha.2): carousel.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
var Carousel = (function ($) {
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
var NAME = 'carousel';
var VERSION = '4.0.0-alpha';
var DATA_KEY = 'bs.carousel';
var EVENT_KEY = '.' + DATA_KEY;
var DATA_API_KEY = '.data-api';
var JQUERY_NO_CONFLICT = $.fn[NAME];
var TRANSITION_DURATION = 600;
var Default = {
interval: 5000,
keyboard: true,
slide: false,
pause: 'hover',
wrap: true
};
var DefaultType = {
interval: '(number|boolean)',
keyboard: 'boolean',
slide: '(boolean|string)',
pause: '(string|boolean)',
wrap: 'boolean'
};
var Direction = {
NEXT: 'next',
PREVIOUS: 'prev'
};
var Event = {
SLIDE: 'slide' + EVENT_KEY,
SLID: 'slid' + EVENT_KEY,
KEYDOWN: 'keydown' + EVENT_KEY,
MOUSEENTER: 'mouseenter' + EVENT_KEY,
MOUSELEAVE: 'mouseleave' + 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: 'right',
LEFT: 'left',
ITEM: 'carousel-item'
};
var Selector = {
ACTIVE: '.active',
ACTIVE_ITEM: '.active.carousel-item',
ITEM: '.carousel-item',
NEXT_PREV: '.next, .prev',
INDICATORS: '.carousel-indicators',
DATA_SLIDE: '[data-slide], [data-slide-to]',
DATA_RIDE: '[data-ride="carousel"]'
};
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
var Carousel = (function () {
function Carousel(element, config) {
_classCallCheck(this, Carousel);
this._items = null;
this._interval = null;
this._activeElement = null;
this._isPaused = false;
this._isSliding = false;
this._config = this._getConfig(config);
this._element = $(element)[0];
this._indicatorsElement = $(this._element).find(Selector.INDICATORS)[0];
this._addEventListeners();
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
// getters
_createClass(Carousel, [{
key: 'next',
// public
value: function next() {
if (!this._isSliding) {
this._slide(Direction.NEXT);
}
}
}, {
key: 'nextWhenVisible',
value: function nextWhenVisible() {
// Don't call next when the page isn't visible
if (!document.hidden) {
this.next();
}
}
}, {
key: 'prev',
value: function prev() {
if (!this._isSliding) {
this._slide(Direction.PREVIOUS);
}
}
}, {
key: 'pause',
value: function pause(event) {
if (!event) {
this._isPaused = true;
}
if ($(this._element).find(Selector.NEXT_PREV)[0] && Util.supportsTransitionEnd()) {
Util.triggerTransitionEnd(this._element);
this.cycle(true);
}
clearInterval(this._interval);
this._interval = null;
}
}, {
key: 'cycle',
value: function cycle(event) {
if (!event) {
this._isPaused = false;
}
if (this._interval) {
clearInterval(this._interval);
this._interval = null;
}
if (this._config.interval && !this._isPaused) {
this._interval = setInterval($.proxy(document.visibilityState ? this.nextWhenVisible : this.next, this), this._config.interval);
}
}
}, {
key: 'to',
value: function to(index) {
var _this = this;
this._activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0];
var activeIndex = this._getItemIndex(this._activeElement);
if (index > this._items.length - 1 || index < 0) {
return;
}
if (this._isSliding) {
$(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.PREVIOUS;
this._slide(direction, this._items[index]);
}
}, {
key: 'dispose',
value: function dispose() {
$(this._element).off(EVENT_KEY);
$.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
}, {
key: '_getConfig',
value: function _getConfig(config) {
config = $.extend({}, Default, config);
Util.typeCheckConfig(NAME, config, DefaultType);
return config;
}
}, {
key: '_addEventListeners',
value: function _addEventListeners() {
if (this._config.keyboard) {
$(this._element).on(Event.KEYDOWN, $.proxy(this._keydown, this));
}
if (this._config.pause === 'hover' && !('ontouchstart' in document.documentElement)) {
$(this._element).on(Event.MOUSEENTER, $.proxy(this.pause, this)).on(Event.MOUSELEAVE, $.proxy(this.cycle, this));
}
}
}, {
key: '_keydown',
value: function _keydown(event) {
event.preventDefault();
if (/input|textarea/i.test(event.target.tagName)) {
return;
}
switch (event.which) {
case 37:
this.prev();break;
case 39:
this.next();break;
default:
return;
}
}
}, {
key: '_getItemIndex',
value: function _getItemIndex(element) {
this._items = $.makeArray($(element).parent().find(Selector.ITEM));
return this._items.indexOf(element);
}
}, {
key: '_getItemByDirection',
value: function _getItemByDirection(direction, activeElement) {
var isNextDirection = direction === Direction.NEXT;
var isPrevDirection = direction === Direction.PREVIOUS;
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.PREVIOUS ? -1 : 1;
var itemIndex = (activeIndex + delta) % this._items.length;
return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
}
}, {
key: '_triggerSlideEvent',
value: function _triggerSlideEvent(relatedTarget, directionalClassname) {
var slideEvent = $.Event(Event.SLIDE, {
relatedTarget: relatedTarget,
direction: directionalClassname
});
$(this._element).trigger(slideEvent);
return slideEvent;
}
}, {
key: '_setActiveIndicatorElement',
value: function _setActiveIndicatorElement(element) {
if (this._indicatorsElement) {
$(this._indicatorsElement).find(Selector.ACTIVE).removeClass(ClassName.ACTIVE);
var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
if (nextIndicator) {
$(nextIndicator).addClass(ClassName.ACTIVE);
}
}
}
}, {
key: '_slide',
value: function _slide(direction, element) {
var _this2 = this;
var activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0];
var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);
var isCycling = Boolean(this._interval);
var directionalClassName = direction === Direction.NEXT ? ClassName.LEFT : ClassName.RIGHT;
if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {
this._isSliding = false;
return;
}
var slideEvent = this._triggerSlideEvent(nextElement, directionalClassName);
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);
var slidEvent = $.Event(Event.SLID, {
relatedTarget: nextElement,
direction: directionalClassName
});
if (Util.supportsTransitionEnd() && $(this._element).hasClass(ClassName.SLIDE)) {
$(nextElement).addClass(direction);
Util.reflow(nextElement);
$(activeElement).addClass(directionalClassName);
$(nextElement).addClass(directionalClassName);
$(activeElement).one(Util.TRANSITION_END, function () {
$(nextElement).removeClass(directionalClassName).removeClass(direction);
$(nextElement).addClass(ClassName.ACTIVE);
$(activeElement).removeClass(ClassName.ACTIVE).removeClass(direction).removeClass(directionalClassName);
_this2._isSliding = false;
setTimeout(function () {
return $(_this2._element).trigger(slidEvent);
}, 0);
}).emulateTransitionEnd(TRANSITION_DURATION);
} else {
$(activeElement).removeClass(ClassName.ACTIVE);
$(nextElement).addClass(ClassName.ACTIVE);
this._isSliding = false;
$(this._element).trigger(slidEvent);
}
if (isCycling) {
this.cycle();
}
}
// static
}], [{
key: '_jQueryInterface',
value: function _jQueryInterface(config) {
return this.each(function () {
var data = $(this).data(DATA_KEY);
var _config = $.extend({}, Default, $(this).data());
if (typeof config === 'object') {
$.extend(_config, config);
}
var action = typeof config === 'string' ? config : _config.slide;
if (!data) {
data = new Carousel(this, _config);
$(this).data(DATA_KEY, data);
}
if (typeof config === 'number') {
data.to(config);
} else if (typeof action === 'string') {
if (data[action] === undefined) {
throw new Error('No method named "' + action + '"');
}
data[action]();
} else if (_config.interval) {
data.pause();
data.cycle();
}
});
}
}, {
key: '_dataApiClickHandler',
value: function _dataApiClickHandler(event) {
var selector = Util.getSelectorFromElement(this);
if (!selector) {
return;
}
var target = $(selector)[0];
if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {
return;
}
var config = $.extend({}, $(target).data(), $(this).data());
var slideIndex = this.getAttribute('data-slide-to');
if (slideIndex) {
config.interval = false;
}
Carousel._jQueryInterface.call($(target), config);
if (slideIndex) {
$(target).data(DATA_KEY).to(slideIndex);
}
event.preventDefault();
}
}, {
key: 'VERSION',
get: function get() {
return VERSION;
}
}, {
key: 'Default',
get: function get() {
return Default;
}
}]);
return Carousel;
})();
$(document).on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler);
$(window).on(Event.LOAD_DATA_API, function () {
$(Selector.DATA_RIDE).each(function () {
var $carousel = $(this);
Carousel._jQueryInterface.call($carousel, $carousel.data());
});
});
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
$.fn[NAME] = Carousel._jQueryInterface;
$.fn[NAME].Constructor = Carousel;
$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT;
return Carousel._jQueryInterface;
};
return Carousel;
})(jQuery);
//# sourceMappingURL=carousel.js.map