/** * -------------------------------------------------------------------------- * Bootstrap (v4.0.0-beta): util.js * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * -------------------------------------------------------------------------- */ var Util = function ($) { /** * ------------------------------------------------------------------------ * Private TransitionEnd Helpers * ------------------------------------------------------------------------ */ var transition = false; var MAX_UID = 1000000; var TransitionEndEvent = { WebkitTransition: 'webkitTransitionEnd', MozTransition: 'transitionend', OTransition: 'oTransitionEnd otransitionend', transition: 'transitionend' // shoutout AngusCroll (https://goo.gl/pxwQGp) };function toType(obj) { return {}.toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase(); } function isElement(obj) { return (obj[0] || obj).nodeType; } function getSpecialTransitionEndEvent() { return { bindType: transition.end, delegateType: transition.end, handle: function handle(event) { if ($(event.target).is(this)) { return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params } return undefined; } }; } function transitionEndTest() { if (window.QUnit) { return false; } var el = document.createElement('bootstrap'); for (var name in TransitionEndEvent) { if (el.style[name] !== undefined) { return { end: TransitionEndEvent[name] }; } } return false; } function transitionEndEmulator(duration) { var _this = this; var called = false; $(this).one(Util.TRANSITION_END, function () { called = true; }); setTimeout(function () { if (!called) { Util.triggerTransitionEnd(_this); } }, duration); return this; } function setTransitionEndSupport() { transition = transitionEndTest(); $.fn.emulateTransitionEnd = transitionEndEmulator; if (Util.supportsTransitionEnd()) { $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent(); } } /** * -------------------------------------------------------------------------- * Public Util Api * -------------------------------------------------------------------------- */ var Util = { TRANSITION_END: 'bsTransitionEnd', getUID: function getUID(prefix) { do { // eslint-disable-next-line no-bitwise prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here } while (document.getElementById(prefix)); return prefix; }, getSelectorFromElement: function getSelectorFromElement(element) { var selector = element.getAttribute('data-target'); if (!selector || selector === '#') { selector = element.getAttribute('href') || ''; } try { var $selector = $(selector); return $selector.length > 0 ? selector : null; } catch (error) { return null; } }, reflow: function reflow(element) { return element.offsetHeight; }, triggerTransitionEnd: function triggerTransitionEnd(element) { $(element).trigger(transition.end); }, supportsTransitionEnd: function supportsTransitionEnd() { return Boolean(transition); }, typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) { for (var property in configTypes) { if (configTypes.hasOwnProperty(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 + '".')); } } } } }; setTransitionEndSupport(); return Util; }(jQuery); //# sourceMappingURL=util.js.map