WPVR – 360 Panorama viewer and Virtual Tour Builder for WordPress / 8.5.79

WPVR – 360 Panorama viewer and Virtual Tour Builder for WordPress v8.5.79

wpvr / public / js / owl.carousel.js

owl.carousel.js in WPVR – 360 Panorama viewer and Virtual Tour Builder for WordPress 8.5.79, at public/js/owl.carousel.js

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1	/**
2	* Owl carousel
3	* @version 2.3.4
4	* @author Bartosz Wojciechowski
5	* @author David Deutsch
6	* @license The MIT License (MIT)
7	* @todo Lazy Load Icon
8	* @todo prevent animationend bubling
9	* @todo itemsScaleUp
10	* @todo Test Zepto
11	* @todo stagePadding calculate wrong active classes
12	*/
13	;(function($, window, document, undefined) {
14
15	/**
16	* Creates a carousel.
17	* @class The Owl Carousel.
18	* @public
19	* @param {HTMLElement\|jQuery} element - The element to create the carousel for.
20	* @param {Object} [options] - The options
21	*/
22	function Owl(element, options) {
23
24	/**
25	* Current settings for the carousel.
26	* @public
27	*/
28	this.settings = null;
29
30	/**
31	* Current options set by the caller including defaults.
32	* @public
33	*/
34	this.options = $.extend({}, Owl.Defaults, options);
35
36	/**
37	* Plugin element.
38	* @public
39	*/
40	this.$element = $(element);
41
42	/**
43	* Proxied event handlers.
44	* @protected
45	*/
46	this._handlers = {};
47
48	/**
49	* References to the running plugins of this carousel.
50	* @protected
51	*/
52	this._plugins = {};
53
54	/**
55	* Currently suppressed events to prevent them from being retriggered.
56	* @protected
57	*/
58	this._supress = {};
59
60	/**
61	* Absolute current position.
62	* @protected
63	*/
64	this._current = null;
65
66	/**
67	* Animation speed in milliseconds.
68	* @protected
69	*/
70	this._speed = null;
71
72	/**
73	* Coordinates of all items in pixel.
74	* @todo The name of this member is missleading.
75	* @protected
76	*/
77	this._coordinates = [];
78
79	/**
80	* Current breakpoint.
81	* @todo Real media queries would be nice.
82	* @protected
83	*/
84	this._breakpoint = null;
85
86	/**
87	* Current width of the plugin element.
88	*/
89	this._width = null;
90
91	/**
92	* All real items.
93	* @protected
94	*/
95	this._items = [];
96
97	/**
98	* All cloned items.
99	* @protected
100	*/
101	this._clones = [];
102
103	/**
104	* Merge values of all items.
105	* @todo Maybe this could be part of a plugin.
106	* @protected
107	*/
108	this._mergers = [];
109
110	/**
111	* Widths of all items.
112	*/
113	this._widths = [];
114
115	/**
116	* Invalidated parts within the update process.
117	* @protected
118	*/
119	this._invalidated = {};
120
121	/**
122	* Ordered list of workers for the update process.
123	* @protected
124	*/
125	this._pipe = [];
126
127	/**
128	* Current state information for the drag operation.
129	* @todo #261
130	* @protected
131	*/
132	this._drag = {
133	time: null,
134	target: null,
135	pointer: null,
136	stage: {
137	start: null,
138	current: null
139	},
140	direction: null
141	};
142
143	/**
144	* Current state information and their tags.
145	* @type {Object}
146	* @protected
147	*/
148	this._states = {
149	current: {},
150	tags: {
151	'initializing': [ 'busy' ],
152	'animating': [ 'busy' ],
153	'dragging': [ 'interacting' ]
154	}
155	};
156
157	$.each([ 'onResize', 'onThrottledResize' ], $.proxy(function(i, handler) {
158	this._handlers[handler] = $.proxy(this[handler], this);
159	}, this));
160
161	$.each(Owl.Plugins, $.proxy(function(key, plugin) {
162	this._plugins[key.charAt(0).toLowerCase() + key.slice(1)]
163	= new plugin(this);
164	}, this));
165
166	$.each(Owl.Workers, $.proxy(function(priority, worker) {
167	this._pipe.push({
168	'filter': worker.filter,
169	'run': $.proxy(worker.run, this)
170	});
171	}, this));
172
173	this.setup();
174	this.initialize();
175	}
176
177	/**
178	* Default options for the carousel.
179	* @public
180	*/
181	Owl.Defaults = {
182	items: 3,
183	loop: false,
184	center: false,
185	rewind: false,
186	checkVisibility: true,
187
188	mouseDrag: true,
189	touchDrag: true,
190	pullDrag: true,
191	freeDrag: false,
192
193	margin: 0,
194	stagePadding: 0,
195
196	merge: false,
197	mergeFit: true,
198	autoWidth: false,
199
200	startPosition: 0,
201	rtl: false,
202
203	smartSpeed: 250,
204	fluidSpeed: false,
205	dragEndSpeed: false,
206
207	responsive: {},
208	responsiveRefreshRate: 200,
209	responsiveBaseElement: window,
210
211	fallbackEasing: 'swing',
212	slideTransition: '',
213
214	info: false,
215
216	nestedItemSelector: false,
217	itemElement: 'div',
218	stageElement: 'div',
219
220	refreshClass: 'owl-refresh',
221	loadedClass: 'owl-loaded',
222	loadingClass: 'owl-loading',
223	rtlClass: 'owl-rtl',
224	responsiveClass: 'owl-responsive',
225	dragClass: 'owl-drag',
226	itemClass: 'owl-item',
227	stageClass: 'owl-stage',
228	stageOuterClass: 'owl-stage-outer',
229	grabClass: 'owl-grab'
230	};
231
232	/**
233	* Enumeration for width.
234	* @public
235	* @readonly
236	* @enum {String}
237	*/
238	Owl.Width = {
239	Default: 'default',
240	Inner: 'inner',
241	Outer: 'outer'
242	};
243
244	/**
245	* Enumeration for types.
246	* @public
247	* @readonly
248	* @enum {String}
249	*/
250	Owl.Type = {
251	Event: 'event',
252	State: 'state'
253	};
254
255	/**
256	* Contains all registered plugins.
257	* @public
258	*/
259	Owl.Plugins = {};
260
261	/**
262	* List of workers involved in the update process.
263	*/
264	Owl.Workers = [ {
265	filter: [ 'width', 'settings' ],
266	run: function() {
267	this._width = this.$element.width();
268	}
269	}, {
270	filter: [ 'width', 'items', 'settings' ],
271	run: function(cache) {
272	cache.current = this._items && this._items[this.relative(this._current)];
273	}
274	}, {
275	filter: [ 'items', 'settings' ],
276	run: function() {
277	this.$stage.children('.cloned').remove();
278	}
279	}, {
280	filter: [ 'width', 'items', 'settings' ],
281	run: function(cache) {
282	var margin = this.settings.margin \|\| '',
283	grid = !this.settings.autoWidth,
284	rtl = this.settings.rtl,
285	css = {
286	'width': 'auto',
287	'margin-left': rtl ? margin : '',
288	'margin-right': rtl ? '' : margin
289	};
290
291	!grid && this.$stage.children().css(css);
292
293	cache.css = css;
294	}
295	}, {
296	filter: [ 'width', 'items', 'settings' ],
297	run: function(cache) {
298	var width = (this.width() / this.settings.items).toFixed(3) - this.settings.margin,
299	merge = null,
300	iterator = this._items.length,
301	grid = !this.settings.autoWidth,
302	widths = [];
303
304	cache.items = {
305	merge: false,
306	width: width
307	};
308
309	while (iterator--) {
310	merge = this._mergers[iterator];
311	merge = this.settings.mergeFit && Math.min(merge, this.settings.items) \|\| merge;
312
313	cache.items.merge = merge > 1 \|\| cache.items.merge;
314
315	widths[iterator] = !grid ? this._items[iterator].width() : width * merge;
316	}
317
318	this._widths = widths;
319	}
320	}, {
321	filter: [ 'items', 'settings' ],
322	run: function() {
323	var clones = [],
324	items = this._items,
325	settings = this.settings,
326	// TODO: Should be computed from number of min width items in stage
327	view = Math.max(settings.items * 2, 4),
328	size = Math.ceil(items.length / 2) * 2,
329	repeat = settings.loop && items.length ? settings.rewind ? view : Math.max(view, size) : 0,
330	append = '',
331	prepend = '';
332
333	repeat /= 2;
334
335	while (repeat > 0) {
336	// Switch to only using appended clones
337	clones.push(this.normalize(clones.length / 2, true));
338	$(items[clones[clones.length - 1]][0]).clone(true).addClass('cloned').appendTo(this.$stage);
339	clones.push(this.normalize(items.length - 1 - (clones.length - 1) / 2, true));
340	$(items[clones[clones.length - 1]][0]).clone(true).addClass('cloned').prependTo(this.$stage);
341	repeat -= 1;
342	}
343	this._clones = clones;
344	}
345	}, {
346	filter: [ 'width', 'items', 'settings' ],
347	run: function() {
348	var rtl = this.settings.rtl ? 1 : -1,
349	size = this._clones.length + this._items.length,
350	iterator = -1,
351	previous = 0,
352	current = 0,
353	coordinates = [];
354
355	while (++iterator < size) {
356	previous = coordinates[iterator - 1] \|\| 0;
357	current = this._widths[this.relative(iterator)] + this.settings.margin;
358	coordinates.push(previous + current * rtl);
359	}
360
361	this._coordinates = coordinates;
362	}
363	}, {
364	filter: [ 'width', 'items', 'settings' ],
365	run: function() {
366	var padding = this.settings.stagePadding,
367	coordinates = this._coordinates,
368	css = {
369	'width': Math.ceil(Math.abs(coordinates[coordinates.length - 1])) + padding * 2,
370	'padding-left': padding \|\| '',
371	'padding-right': padding \|\| ''
372	};
373
374	this.$stage.css(css);
375	}
376	}, {
377	filter: [ 'width', 'items', 'settings' ],
378	run: function(cache) {
379	var iterator = this._coordinates.length,
380	grid = !this.settings.autoWidth,
381	items = this.$stage.children();
382
383	if (grid && cache.items.merge) {
384	while (iterator--) {
385	cache.css.width = this._widths[this.relative(iterator)];
386	items.eq(iterator).css(cache.css);
387	}
388	} else if (grid) {
389	cache.css.width = cache.items.width;
390	items.css(cache.css);
391	}
392	}
393	}, {
394	filter: [ 'items' ],
395	run: function() {
396	this._coordinates.length < 1 && this.$stage.removeAttr('style');
397	}
398	}, {
399	filter: [ 'width', 'items', 'settings' ],
400	run: function(cache) {
401	cache.current = cache.current ? this.$stage.children().index(cache.current) : 0;
402	cache.current = Math.max(this.minimum(), Math.min(this.maximum(), cache.current));
403	this.reset(cache.current);
404	}
405	}, {
406	filter: [ 'position' ],
407	run: function() {
408	this.animate(this.coordinates(this._current));
409	}
410	}, {
411	filter: [ 'width', 'position', 'items', 'settings' ],
412	run: function() {
413	var rtl = this.settings.rtl ? 1 : -1,
414	padding = this.settings.stagePadding * 2,
415	begin = this.coordinates(this.current()) + padding,
416	end = begin + this.width() * rtl,
417	inner, outer, matches = [], i, n;
418
419	for (i = 0, n = this._coordinates.length; i < n; i++) {
420	inner = this._coordinates[i - 1] \|\| 0;
421	outer = Math.abs(this._coordinates[i]) + padding * rtl;
422
423	if ((this.op(inner, '<=', begin) && (this.op(inner, '>', end)))
424	\|\| (this.op(outer, '<', begin) && this.op(outer, '>', end))) {
425	matches.push(i);
426	}
427	}
428
429	this.$stage.children('.active').removeClass('active');
430	this.$stage.children(':eq(' + matches.join('), :eq(') + ')').addClass('active');
431
432	this.$stage.children('.center').removeClass('center');
433	if (this.settings.center) {
434	this.$stage.children().eq(this.current()).addClass('center');
435	}
436	}
437	} ];
438
439	/**
440	* Create the stage DOM element
441	*/
442	Owl.prototype.initializeStage = function() {
443	this.$stage = this.$element.find('.' + this.settings.stageClass);
444
445	// if the stage is already in the DOM, grab it and skip stage initialization
446	if (this.$stage.length) {
447	return;
448	}
449
450	this.$element.addClass(this.options.loadingClass);
451
452	// create stage
453	this.$stage = $('<' + this.settings.stageElement + '>', {
454	"class": this.settings.stageClass
455	}).wrap( $( '<div/>', {
456	"class": this.settings.stageOuterClass
457	}));
458
459	// append stage
460	this.$element.append(this.$stage.parent());
461	};
462
463	/**
464	* Create item DOM elements
465	*/
466	Owl.prototype.initializeItems = function() {
467	var $items = this.$element.find('.owl-item');
468
469	// if the items are already in the DOM, grab them and skip item initialization
470	if ($items.length) {
471	this._items = $items.get().map(function(item) {
472	return $(item);
473	});
474
475	this._mergers = this._items.map(function() {
476	return 1;
477	});
478
479	this.refresh();
480
481	return;
482	}
483
484	// append content
485	this.replace(this.$element.children().not(this.$stage.parent()));
486
487	// check visibility
488	if (this.isVisible()) {
489	// update view
490	this.refresh();
491	} else {
492	// invalidate width
493	this.invalidate('width');
494	}
495
496	this.$element
497	.removeClass(this.options.loadingClass)
498	.addClass(this.options.loadedClass);
499	};
500
501	/**
502	* Initializes the carousel.
503	* @protected
504	*/
505	Owl.prototype.initialize = function() {
506	this.enter('initializing');
507	this.trigger('initialize');
508
509	this.$element.toggleClass(this.settings.rtlClass, this.settings.rtl);
510
511	if (this.settings.autoWidth && !this.is('pre-loading')) {
512	var imgs, nestedSelector, width;
513	imgs = this.$element.find('img');
514	nestedSelector = this.settings.nestedItemSelector ? '.' + this.settings.nestedItemSelector : undefined;
515	width = this.$element.children(nestedSelector).width();
516
517	if (imgs.length && width <= 0) {
518	this.preloadAutoWidthImages(imgs);
519	}
520	}
521
522	this.initializeStage();
523	this.initializeItems();
524
525	// register event handlers
526	this.registerEventHandlers();
527
528	this.leave('initializing');
529	this.trigger('initialized');
530	};
531
532	/**
533	* @returns {Boolean} visibility of $element
534	* if you know the carousel will always be visible you can set `checkVisibility` to `false` to
535	* prevent the expensive browser layout forced reflow the $element.is(':visible') does
536	*/
537	Owl.prototype.isVisible = function() {
538	return this.settings.checkVisibility
539	? this.$element.is(':visible')
540	: true;
541	};
542
543	/**
544	* Setups the current settings.
545	* @todo Remove responsive classes. Why should adaptive designs be brought into IE8?
546	* @todo Support for media queries by using `matchMedia` would be nice.
547	* @public
548	*/
549	Owl.prototype.setup = function() {
550	var viewport = this.viewport(),
551	overwrites = this.options.responsive,
552	match = -1,
553	settings = null;
554
555	if (!overwrites) {
556	settings = $.extend({}, this.options);
557	} else {
558	$.each(overwrites, function(breakpoint) {
559	if (breakpoint <= viewport && breakpoint > match) {
560	match = Number(breakpoint);
561	}
562	});
563
564	settings = $.extend({}, this.options, overwrites[match]);
565	if (typeof settings.stagePadding === 'function') {
566	settings.stagePadding = settings.stagePadding();
567	}
568	delete settings.responsive;
569
570	// responsive class
571	if (settings.responsiveClass) {
572	this.$element.attr('class',
573	this.$element.attr('class').replace(new RegExp('(' + this.options.responsiveClass + '-)\\S+\\s', 'g'), '$1' + match)
574	);
575	}
576	}
577
578	this.trigger('change', { property: { name: 'settings', value: settings } });
579	this._breakpoint = match;
580	this.settings = settings;
581	this.invalidate('settings');
582	this.trigger('changed', { property: { name: 'settings', value: this.settings } });
583	};
584
585	/**
586	* Updates option logic if necessery.
587	* @protected
588	*/
589	Owl.prototype.optionsLogic = function() {
590	if (this.settings.autoWidth) {
591	this.settings.stagePadding = false;
592	this.settings.merge = false;
593	}
594	};
595
596	/**
597	* Prepares an item before add.
598	* @todo Rename event parameter `content` to `item`.
599	* @protected
600	* @returns {jQuery\|HTMLElement} - The item container.
601	*/
602	Owl.prototype.prepare = function(item) {
603	var event = this.trigger('prepare', { content: item });
604
605	if (!event.data) {
606	event.data = $('<' + this.settings.itemElement + '/>')
607	.addClass(this.options.itemClass).append(item)
608	}
609
610	this.trigger('prepared', { content: event.data });
611
612	return event.data;
613	};
614
615	/**
616	* Updates the view.
617	* @public
618	*/
619	Owl.prototype.update = function() {
620	var i = 0,
621	n = this._pipe.length,
622	filter = $.proxy(function(p) { return this[p] }, this._invalidated),
623	cache = {};
624
625	while (i < n) {
626	if (this._invalidated.all \|\| $.grep(this._pipe[i].filter, filter).length > 0) {
627	this._pipe[i].run(cache);
628	}
629	i++;
630	}
631
632	this._invalidated = {};
633
634	!this.is('valid') && this.enter('valid');
635	};
636
637	/**
638	* Gets the width of the view.
639	* @public
640	* @param {Owl.Width} [dimension=Owl.Width.Default] - The dimension to return.
641	* @returns {Number} - The width of the view in pixel.
642	*/
643	Owl.prototype.width = function(dimension) {
644	dimension = dimension \|\| Owl.Width.Default;
645	switch (dimension) {
646	case Owl.Width.Inner:
647	case Owl.Width.Outer:
648	return this._width;
649	default:
650	return this._width - this.settings.stagePadding * 2 + this.settings.margin;
651	}
652	};
653
654	/**
655	* Refreshes the carousel primarily for adaptive purposes.
656	* @public
657	*/
658	Owl.prototype.refresh = function(resizing) {
659	resizing = resizing \|\| false;
660
661	this.enter('refreshing');
662	this.trigger('refresh');
663
664	this.setup();
665
666	this.optionsLogic();
667
668	this.$element.addClass(this.options.refreshClass);
669
670	this.update();
671
672	if (!resizing) {
673	this.onResize();
674	}
675
676	this.$element.removeClass(this.options.refreshClass);
677
678	this.leave('refreshing');
679	this.trigger('refreshed');
680	};
681
682	/**
683	* Checks window `resize` event.
684	* @protected
685	*/
686	Owl.prototype.onThrottledResize = function() {
687	window.clearTimeout(this.resizeTimer);
688	this.resizeTimer = window.setTimeout(this._handlers.onResize, this.settings.responsiveRefreshRate);
689	};
690
691	/**
692	* Checks window `resize` event.
693	* @protected
694	*/
695	Owl.prototype.onResize = function() {
696	var resizing = true;
697
698	if (!this._items.length) {
699	return false;
700	}
701
702	if (this._width === this.$element.width()) {
703	return false;
704	}
705
706	if (!this.isVisible()) {
707	return false;
708	}
709
710	this.enter('resizing');
711
712	if (this.trigger('resize').isDefaultPrevented()) {
713	this.leave('resizing');
714	return false;
715	}
716
717	this.invalidate('width');
718
719	this.refresh(resizing);
720
721	this.leave('resizing');
722	this.trigger('resized');
723	};
724
725	/**
726	* Registers event handlers.
727	* @todo Check `msPointerEnabled`
728	* @todo #261
729	* @protected
730	*/
731	Owl.prototype.registerEventHandlers = function() {
732	if ($.support.transition) {
733	this.$stage.on($.support.transition.end + '.owl.core', $.proxy(this.onTransitionEnd, this));
734	}
735
736	if (this.settings.responsive !== false) {
737	this.on(window, 'resize', this._handlers.onThrottledResize);
738	}
739
740	if (this.settings.mouseDrag) {
741	this.$element.addClass(this.options.dragClass);
742	this.$stage.on('mousedown.owl.core', $.proxy(this.onDragStart, this));
743	this.$stage.on('dragstart.owl.core selectstart.owl.core', function() { return false });
744	}
745
746	if (this.settings.touchDrag){
747	this.$stage.on('touchstart.owl.core', $.proxy(this.onDragStart, this));
748	this.$stage.on('touchcancel.owl.core', $.proxy(this.onDragEnd, this));
749	}
750	};
751
752	/**
753	* Handles `touchstart` and `mousedown` events.
754	* @todo Horizontal swipe threshold as option
755	* @todo #261
756	* @protected
757	* @param {Event} event - The event arguments.
758	*/
759	Owl.prototype.onDragStart = function(event) {
760	var stage = null;
761
762	if (event.which === 3) {
763	return;
764	}
765
766	if ($.support.transform) {
767	stage = this.$stage.css('transform').replace(/.*\(\|\)\| /g, '').split(',');
768	stage = {
769	x: stage[stage.length === 16 ? 12 : 4],
770	y: stage[stage.length === 16 ? 13 : 5]
771	};
772	} else {
773	stage = this.$stage.position();
774	stage = {
775	x: this.settings.rtl ?
776	stage.left + this.$stage.width() - this.width() + this.settings.margin :
777	stage.left,
778	y: stage.top
779	};
780	}
781
782	if (this.is('animating')) {
783	$.support.transform ? this.animate(stage.x) : this.$stage.stop()
784	this.invalidate('position');
785	}
786
787	this.$element.toggleClass(this.options.grabClass, event.type === 'mousedown');
788
789	this.speed(0);
790
791	this._drag.time = new Date().getTime();
792	this._drag.target = $(event.target);
793	this._drag.stage.start = stage;
794	this._drag.stage.current = stage;
795	this._drag.pointer = this.pointer(event);
796
797	$(document).on('mouseup.owl.core touchend.owl.core', $.proxy(this.onDragEnd, this));
798
799	$(document).one('mousemove.owl.core touchmove.owl.core', $.proxy(function(event) {
800	var delta = this.difference(this._drag.pointer, this.pointer(event));
801
802	$(document).on('mousemove.owl.core touchmove.owl.core', $.proxy(this.onDragMove, this));
803
804	if (Math.abs(delta.x) < Math.abs(delta.y) && this.is('valid')) {
805	return;
806	}
807
808	event.preventDefault();
809
810	this.enter('dragging');
811	this.trigger('drag');
812	}, this));
813	};
814
815	/**
816	* Handles the `touchmove` and `mousemove` events.
817	* @todo #261
818	* @protected
819	* @param {Event} event - The event arguments.
820	*/
821	Owl.prototype.onDragMove = function(event) {
822	var minimum = null,
823	maximum = null,
824	pull = null,
825	delta = this.difference(this._drag.pointer, this.pointer(event)),
826	stage = this.difference(this._drag.stage.start, delta);
827
828	if (!this.is('dragging')) {
829	return;
830	}
831
832	event.preventDefault();
833
834	if (this.settings.loop) {
835	minimum = this.coordinates(this.minimum());
836	maximum = this.coordinates(this.maximum() + 1) - minimum;
837	stage.x = (((stage.x - minimum) % maximum + maximum) % maximum) + minimum;
838	} else {
839	minimum = this.settings.rtl ? this.coordinates(this.maximum()) : this.coordinates(this.minimum());
840	maximum = this.settings.rtl ? this.coordinates(this.minimum()) : this.coordinates(this.maximum());
841	pull = this.settings.pullDrag ? -1 * delta.x / 5 : 0;
842	stage.x = Math.max(Math.min(stage.x, minimum + pull), maximum + pull);
843	}
844
845	this._drag.stage.current = stage;
846
847	this.animate(stage.x);
848	};
849
850	/**
851	* Handles the `touchend` and `mouseup` events.
852	* @todo #261
853	* @todo Threshold for click event
854	* @protected
855	* @param {Event} event - The event arguments.
856	*/
857	Owl.prototype.onDragEnd = function(event) {
858	var delta = this.difference(this._drag.pointer, this.pointer(event)),
859	stage = this._drag.stage.current,
860	direction = delta.x > 0 ^ this.settings.rtl ? 'left' : 'right';
861
862	$(document).off('.owl.core');
863
864	this.$element.removeClass(this.options.grabClass);
865
866	if (delta.x !== 0 && this.is('dragging') \|\| !this.is('valid')) {
867	this.speed(this.settings.dragEndSpeed \|\| this.settings.smartSpeed);
868	this.current(this.closest(stage.x, delta.x !== 0 ? direction : this._drag.direction));
869	this.invalidate('position');
870	this.update();
871
872	this._drag.direction = direction;
873
874	if (Math.abs(delta.x) > 3 \|\| new Date().getTime() - this._drag.time > 300) {
875	this._drag.target.one('click.owl.core', function() { return false; });
876	}
877	}
878
879	if (!this.is('dragging')) {
880	return;
881	}
882
883	this.leave('dragging');
884	this.trigger('dragged');
885	};
886
887	/**
888	* Gets absolute position of the closest item for a coordinate.
889	* @todo Setting `freeDrag` makes `closest` not reusable. See #165.
890	* @protected
891	* @param {Number} coordinate - The coordinate in pixel.
892	* @param {String} direction - The direction to check for the closest item. Ether `left` or `right`.
893	* @return {Number} - The absolute position of the closest item.
894	*/
895	Owl.prototype.closest = function(coordinate, direction) {
896	var position = -1,
897	pull = 30,
898	width = this.width(), // visible carousel width
899	count = this.settings.items,
900	itemWidth = Math.round(width / count),
901	coordinates = this.coordinates();
902
903	if (!this.settings.freeDrag) {
904	// check closest item
905	$.each(coordinates, $.proxy(function(index, value) {
906	// on a left pull, check on current index
907	if (direction === 'left' && coordinate > value - pull && coordinate < value + pull) {
908	position = index;
909	// on a right pull, check on previous index
910	// to do so, subtract width from value and set position = index + 1
911	} else if (direction === 'right' && coordinate > value - itemWidth - pull && coordinate < value - itemWidth + pull) {
912	position = index + 1;
913	} else if (this.op(coordinate, '<', value)
914	&& this.op(coordinate, '>', coordinates[index + 1] !== undefined ? coordinates[index + 1] : value - width)) {
915	position = direction === 'left' ? index + 1 : index;
916	}
917	return position === -1;
918	}, this));
919	}
920
921	if (!this.settings.loop) {
922	// non loop boundries
923	if (this.op(coordinate, '>', coordinates[this.minimum()])) {
924	position = coordinate = this.minimum();
925	} else if (this.op(coordinate, '<', coordinates[this.maximum()])) {
926	position = coordinate = this.maximum();
927	}
928	}
929
930	return position;
931	};
932
933	/**
934	* Animates the stage.
935	* @todo #270
936	* @public
937	* @param {Number} coordinate - The coordinate in pixels.
938	*/
939	Owl.prototype.animate = function(coordinate) {
940	var animate = this.speed() > 0;
941
942	this.is('animating') && this.onTransitionEnd();
943
944	if (animate) {
945	this.enter('animating');
946	this.trigger('translate');
947	}
948
949	if ($.support.transform3d && $.support.transition) {
950	this.$stage.css({
951	transform: 'translate3d(' + coordinate + 'px,0px,0px)',
952	transition: (this.speed() / 1000) + 's' + (
953	this.settings.slideTransition ? ' ' + this.settings.slideTransition : ''
954	)
955	});
956	} else if (animate) {
957	this.$stage.animate({
958	left: coordinate + 'px'
959	}, this.speed(), this.settings.fallbackEasing, $.proxy(this.onTransitionEnd, this));
960	} else {
961	this.$stage.css({
962	left: coordinate + 'px'
963	});
964	}
965	};
966
967	/**
968	* Checks whether the carousel is in a specific state or not.
969	* @param {String} state - The state to check.
970	* @returns {Boolean} - The flag which indicates if the carousel is busy.
971	*/
972	Owl.prototype.is = function(state) {
973	return this._states.current[state] && this._states.current[state] > 0;
974	};
975
976	/**
977	* Sets the absolute position of the current item.
978	* @public
979	* @param {Number} [position] - The new absolute position or nothing to leave it unchanged.
980	* @returns {Number} - The absolute position of the current item.
981	*/
982	Owl.prototype.current = function(position) {
983	if (position === undefined) {
984	return this._current;
985	}
986
987	if (this._items.length === 0) {
988	return undefined;
989	}
990
991	position = this.normalize(position);
992
993	if (this._current !== position) {
994	var event = this.trigger('change', { property: { name: 'position', value: position } });
995
996	if (event.data !== undefined) {
997	position = this.normalize(event.data);
998	}
999
1000	this._current = position;
1001
1002	this.invalidate('position');
1003
1004	this.trigger('changed', { property: { name: 'position', value: this._current } });
1005	}
1006
1007	return this._current;
1008	};
1009
1010	/**
1011	* Invalidates the given part of the update routine.
1012	* @param {String} [part] - The part to invalidate.
1013	* @returns {Array.<String>} - The invalidated parts.
1014	*/
1015	Owl.prototype.invalidate = function(part) {
1016	if ($.type(part) === 'string') {
1017	this._invalidated[part] = true;
1018	this.is('valid') && this.leave('valid');
1019	}
1020	return $.map(this._invalidated, function(v, i) { return i });
1021	};
1022
1023	/**
1024	* Resets the absolute position of the current item.
1025	* @public
1026	* @param {Number} position - The absolute position of the new item.
1027	*/
1028	Owl.prototype.reset = function(position) {
1029	position = this.normalize(position);
1030
1031	if (position === undefined) {
1032	return;
1033	}
1034
1035	this._speed = 0;
1036	this._current = position;
1037
1038	this.suppress([ 'translate', 'translated' ]);
1039
1040	this.animate(this.coordinates(position));
1041
1042	this.release([ 'translate', 'translated' ]);
1043	};
1044
1045	/**
1046	* Normalizes an absolute or a relative position of an item.
1047	* @public
1048	* @param {Number} position - The absolute or relative position to normalize.
1049	* @param {Boolean} [relative=false] - Whether the given position is relative or not.
1050	* @returns {Number} - The normalized position.
1051	*/
1052	Owl.prototype.normalize = function(position, relative) {
1053	var n = this._items.length,
1054	m = relative ? 0 : this._clones.length;
1055
1056	if (!this.isNumeric(position) \|\| n < 1) {
1057	position = undefined;
1058	} else if (position < 0 \|\| position >= n + m) {
1059	position = ((position - m / 2) % n + n) % n + m / 2;
1060	}
1061
1062	return position;
1063	};
1064
1065	/**
1066	* Converts an absolute position of an item into a relative one.
1067	* @public
1068	* @param {Number} position - The absolute position to convert.
1069	* @returns {Number} - The converted position.
1070	*/
1071	Owl.prototype.relative = function(position) {
1072	position -= this._clones.length / 2;
1073	return this.normalize(position, true);
1074	};
1075
1076	/**
1077	* Gets the maximum position for the current item.
1078	* @public
1079	* @param {Boolean} [relative=false] - Whether to return an absolute position or a relative position.
1080	* @returns {Number}
1081	*/
1082	Owl.prototype.maximum = function(relative) {
1083	var settings = this.settings,
1084	maximum = this._coordinates.length,
1085	iterator,
1086	reciprocalItemsWidth,
1087	elementWidth;
1088
1089	if (settings.loop) {
1090	maximum = this._clones.length / 2 + this._items.length - 1;
1091	} else if (settings.autoWidth \|\| settings.merge) {
1092	iterator = this._items.length;
1093	if (iterator) {
1094	reciprocalItemsWidth = this._items[--iterator].width();
1095	elementWidth = this.$element.width();
1096	while (iterator--) {
1097	reciprocalItemsWidth += this._items[iterator].width() + this.settings.margin;
1098	if (reciprocalItemsWidth > elementWidth) {
1099	break;
1100	}
1101	}
1102	}
1103	maximum = iterator + 1;
1104	} else if (settings.center) {
1105	maximum = this._items.length - 1;
1106	} else {
1107	maximum = this._items.length - settings.items;
1108	}
1109
1110	if (relative) {
1111	maximum -= this._clones.length / 2;
1112	}
1113
1114	return Math.max(maximum, 0);
1115	};
1116
1117	/**
1118	* Gets the minimum position for the current item.
1119	* @public
1120	* @param {Boolean} [relative=false] - Whether to return an absolute position or a relative position.
1121	* @returns {Number}
1122	*/
1123	Owl.prototype.minimum = function(relative) {
1124	return relative ? 0 : this._clones.length / 2;
1125	};
1126
1127	/**
1128	* Gets an item at the specified relative position.
1129	* @public
1130	* @param {Number} [position] - The relative position of the item.
1131	* @return {jQuery\|Array.<jQuery>} - The item at the given position or all items if no position was given.
1132	*/
1133	Owl.prototype.items = function(position) {
1134	if (position === undefined) {
1135	return this._items.slice();
1136	}
1137
1138	position = this.normalize(position, true);
1139	return this._items[position];
1140	};
1141
1142	/**
1143	* Gets an item at the specified relative position.
1144	* @public
1145	* @param {Number} [position] - The relative position of the item.
1146	* @return {jQuery\|Array.<jQuery>} - The item at the given position or all items if no position was given.
1147	*/
1148	Owl.prototype.mergers = function(position) {
1149	if (position === undefined) {
1150	return this._mergers.slice();
1151	}
1152
1153	position = this.normalize(position, true);
1154	return this._mergers[position];
1155	};
1156
1157	/**
1158	* Gets the absolute positions of clones for an item.
1159	* @public
1160	* @param {Number} [position] - The relative position of the item.
1161	* @returns {Array.<Number>} - The absolute positions of clones for the item or all if no position was given.
1162	*/
1163	Owl.prototype.clones = function(position) {
1164	var odd = this._clones.length / 2,
1165	even = odd + this._items.length,
1166	map = function(index) { return index % 2 === 0 ? even + index / 2 : odd - (index + 1) / 2 };
1167
1168	if (position === undefined) {
1169	return $.map(this._clones, function(v, i) { return map(i) });
1170	}
1171
1172	return $.map(this._clones, function(v, i) { return v === position ? map(i) : null });
1173	};
1174
1175	/**
1176	* Sets the current animation speed.
1177	* @public
1178	* @param {Number} [speed] - The animation speed in milliseconds or nothing to leave it unchanged.
1179	* @returns {Number} - The current animation speed in milliseconds.
1180	*/
1181	Owl.prototype.speed = function(speed) {
1182	if (speed !== undefined) {
1183	this._speed = speed;
1184	}
1185
1186	return this._speed;
1187	};
1188
1189	/**
1190	* Gets the coordinate of an item.
1191	* @todo The name of this method is missleanding.
1192	* @public
1193	* @param {Number} position - The absolute position of the item within `minimum()` and `maximum()`.
1194	* @returns {Number\|Array.<Number>} - The coordinate of the item in pixel or all coordinates.
1195	*/
1196	Owl.prototype.coordinates = function(position) {
1197	var multiplier = 1,
1198	newPosition = position - 1,
1199	coordinate;
1200
1201	if (position === undefined) {
1202	return $.map(this._coordinates, $.proxy(function(coordinate, index) {
1203	return this.coordinates(index);
1204	}, this));
1205	}
1206
1207	if (this.settings.center) {
1208	if (this.settings.rtl) {
1209	multiplier = -1;
1210	newPosition = position + 1;
1211	}
1212
1213	coordinate = this._coordinates[position];
1214	coordinate += (this.width() - coordinate + (this._coordinates[newPosition] \|\| 0)) / 2 * multiplier;
1215	} else {
1216	coordinate = this._coordinates[newPosition] \|\| 0;
1217	}
1218
1219	coordinate = Math.ceil(coordinate);
1220
1221	return coordinate;
1222	};
1223
1224	/**
1225	* Calculates the speed for a translation.
1226	* @protected
1227	* @param {Number} from - The absolute position of the start item.
1228	* @param {Number} to - The absolute position of the target item.
1229	* @param {Number} [factor=undefined] - The time factor in milliseconds.
1230	* @returns {Number} - The time in milliseconds for the translation.
1231	*/
1232	Owl.prototype.duration = function(from, to, factor) {
1233	if (factor === 0) {
1234	return 0;
1235	}
1236
1237	return Math.min(Math.max(Math.abs(to - from), 1), 6) * Math.abs((factor \|\| this.settings.smartSpeed));
1238	};
1239
1240	/**
1241	* Slides to the specified item.
1242	* @public
1243	* @param {Number} position - The position of the item.
1244	* @param {Number} [speed] - The time in milliseconds for the transition.
1245	*/
1246	Owl.prototype.to = function(position, speed) {
1247	var current = this.current(),
1248	revert = null,
1249	distance = position - this.relative(current),
1250	direction = (distance > 0) - (distance < 0),
1251	items = this._items.length,
1252	minimum = this.minimum(),
1253	maximum = this.maximum();
1254
1255	if (this.settings.loop) {
1256	if (!this.settings.rewind && Math.abs(distance) > items / 2) {
1257	distance += direction * -1 * items;
1258	}
1259
1260	position = current + distance;
1261	revert = ((position - minimum) % items + items) % items + minimum;
1262
1263	if (revert !== position && revert - distance <= maximum && revert - distance > 0) {
1264	current = revert - distance;
1265	position = revert;
1266	this.reset(current);
1267	}
1268	} else if (this.settings.rewind) {
1269	maximum += 1;
1270	position = (position % maximum + maximum) % maximum;
1271	} else {
1272	position = Math.max(minimum, Math.min(maximum, position));
1273	}
1274
1275	this.speed(this.duration(current, position, speed));
1276	this.current(position);
1277
1278	if (this.isVisible()) {
1279	this.update();
1280	}
1281	};
1282
1283	/**
1284	* Slides to the next item.
1285	* @public
1286	* @param {Number} [speed] - The time in milliseconds for the transition.
1287	*/
1288	Owl.prototype.next = function(speed) {
1289	speed = speed \|\| false;
1290	this.to(this.relative(this.current()) + 1, speed);
1291	};
1292
1293	/**
1294	* Slides to the previous item.
1295	* @public
1296	* @param {Number} [speed] - The time in milliseconds for the transition.
1297	*/
1298	Owl.prototype.prev = function(speed) {
1299	speed = speed \|\| false;
1300	this.to(this.relative(this.current()) - 1, speed);
1301	};
1302
1303	/**
1304	* Handles the end of an animation.
1305	* @protected
1306	* @param {Event} event - The event arguments.
1307	*/
1308	Owl.prototype.onTransitionEnd = function(event) {
1309
1310	// if css2 animation then event object is undefined
1311	if (event !== undefined) {
1312	event.stopPropagation();
1313
1314	// Catch only owl-stage transitionEnd event
1315	if ((event.target \|\| event.srcElement \|\| event.originalTarget) !== this.$stage.get(0)) {
1316	return false;
1317	}
1318	}
1319
1320	this.leave('animating');
1321	this.trigger('translated');
1322	};
1323
1324	/**
1325	* Gets viewport width.
1326	* @protected
1327	* @return {Number} - The width in pixel.
1328	*/
1329	Owl.prototype.viewport = function() {
1330	var width;
1331	if (this.options.responsiveBaseElement !== window) {
1332	width = $(this.options.responsiveBaseElement).width();
1333	} else if (window.innerWidth) {
1334	width = window.innerWidth;
1335	} else if (document.documentElement && document.documentElement.clientWidth) {
1336	width = document.documentElement.clientWidth;
1337	} else {
1338	console.warn('Can not detect viewport width.');
1339	}
1340	return width;
1341	};
1342
1343	/**
1344	* Replaces the current content.
1345	* @public
1346	* @param {HTMLElement\|jQuery\|String} content - The new content.
1347	*/
1348	Owl.prototype.replace = function(content) {
1349	this.$stage.empty();
1350	this._items = [];
1351
1352	if (content) {
1353	content = (content instanceof jQuery) ? content : $(content);
1354	}
1355
1356	if (this.settings.nestedItemSelector) {
1357	content = content.find('.' + this.settings.nestedItemSelector);
1358	}
1359
1360	content.filter(function() {
1361	return this.nodeType === 1;
1362	}).each($.proxy(function(index, item) {
1363	item = this.prepare(item);
1364	this.$stage.append(item);
1365	this._items.push(item);
1366	this._mergers.push(item.find('[data-merge]').addBack('[data-merge]').attr('data-merge') * 1 \|\| 1);
1367	}, this));
1368
1369	this.reset(this.isNumeric(this.settings.startPosition) ? this.settings.startPosition : 0);
1370
1371	this.invalidate('items');
1372	};
1373
1374	/**
1375	* Adds an item.
1376	* @todo Use `item` instead of `content` for the event arguments.
1377	* @public
1378	* @param {HTMLElement\|jQuery\|String} content - The item content to add.
1379	* @param {Number} [position] - The relative position at which to insert the item otherwise the item will be added to the end.
1380	*/
1381	Owl.prototype.add = function(content, position) {
1382	var current = this.relative(this._current);
1383
1384	position = position === undefined ? this._items.length : this.normalize(position, true);
1385	content = content instanceof jQuery ? content : $(content);
1386
1387	this.trigger('add', { content: content, position: position });
1388
1389	content = this.prepare(content);
1390
1391	if (this._items.length === 0 \|\| position === this._items.length) {
1392	this._items.length === 0 && this.$stage.append(content);
1393	this._items.length !== 0 && this._items[position - 1].after(content);
1394	this._items.push(content);
1395	this._mergers.push(content.find('[data-merge]').addBack('[data-merge]').attr('data-merge') * 1 \|\| 1);
1396	} else {
1397	this._items[position].before(content);
1398	this._items.splice(position, 0, content);
1399	this._mergers.splice(position, 0, content.find('[data-merge]').addBack('[data-merge]').attr('data-merge') * 1 \|\| 1);
1400	}
1401
1402	this._items[current] && this.reset(this._items[current].index());
1403
1404	this.invalidate('items');
1405
1406	this.trigger('added', { content: content, position: position });
1407	};
1408
1409	/**
1410	* Removes an item by its position.
1411	* @todo Use `item` instead of `content` for the event arguments.
1412	* @public
1413	* @param {Number} position - The relative position of the item to remove.
1414	*/
1415	Owl.prototype.remove = function(position) {
1416	position = this.normalize(position, true);
1417
1418	if (position === undefined) {
1419	return;
1420	}
1421
1422	this.trigger('remove', { content: this._items[position], position: position });
1423
1424	this._items[position].remove();
1425	this._items.splice(position, 1);
1426	this._mergers.splice(position, 1);
1427
1428	this.invalidate('items');
1429
1430	this.trigger('removed', { content: null, position: position });
1431	};
1432
1433	/**
1434	* Preloads images with auto width.
1435	* @todo Replace by a more generic approach
1436	* @protected
1437	*/
1438	Owl.prototype.preloadAutoWidthImages = function(images) {
1439	images.each($.proxy(function(i, element) {
1440	this.enter('pre-loading');
1441	element = $(element);
1442	$(new Image()).one('load', $.proxy(function(e) {
1443	element.attr('src', e.target.src);
1444	element.css('opacity', 1);
1445	this.leave('pre-loading');
1446	!this.is('pre-loading') && !this.is('initializing') && this.refresh();
1447	}, this)).attr('src', (window.devicePixelRatio > 1) ? element.attr('data-src-retina') : element.attr('data-src') \|\| element.attr('src'));
1448	}, this));
1449	};
1450
1451	/**
1452	* Destroys the carousel.
1453	* @public
1454	*/
1455	Owl.prototype.destroy = function() {
1456
1457	this.$element.off('.owl.core');
1458	this.$stage.off('.owl.core');
1459	$(document).off('.owl.core');
1460
1461	if (this.settings.responsive !== false) {
1462	window.clearTimeout(this.resizeTimer);
1463	this.off(window, 'resize', this._handlers.onThrottledResize);
1464	}
1465
1466	for (var i in this._plugins) {
1467	this._plugins[i].destroy();
1468	}
1469
1470	this.$stage.children('.cloned').remove();
1471
1472	this.$stage.unwrap();
1473	this.$stage.children().contents().unwrap();
1474	this.$stage.children().unwrap();
1475	this.$stage.remove();
1476	this.$element
1477	.removeClass(this.options.refreshClass)
1478	.removeClass(this.options.loadingClass)
1479	.removeClass(this.options.loadedClass)
1480	.removeClass(this.options.rtlClass)
1481	.removeClass(this.options.dragClass)
1482	.removeClass(this.options.grabClass)
1483	.attr('class', this.$element.attr('class').replace(new RegExp(this.options.responsiveClass + '-\\S+\\s', 'g'), ''))
1484	.removeData('owl.carousel');
1485	};
1486
1487	/**
1488	* Operators to calculate right-to-left and left-to-right.
1489	* @protected
1490	* @param {Number} [a] - The left side operand.
1491	* @param {String} [o] - The operator.
1492	* @param {Number} [b] - The right side operand.
1493	*/
1494	Owl.prototype.op = function(a, o, b) {
1495	var rtl = this.settings.rtl;
1496	switch (o) {
1497	case '<':
1498	return rtl ? a > b : a < b;
1499	case '>':
1500	return rtl ? a < b : a > b;
1501	case '>=':
1502	return rtl ? a <= b : a >= b;
1503	case '<=':
1504	return rtl ? a >= b : a <= b;
1505	default:
1506	break;
1507	}
1508	};
1509
1510	/**
1511	* Attaches to an internal event.
1512	* @protected
1513	* @param {HTMLElement} element - The event source.
1514	* @param {String} event - The event name.
1515	* @param {Function} listener - The event handler to attach.
1516	* @param {Boolean} capture - Wether the event should be handled at the capturing phase or not.
1517	*/
1518	Owl.prototype.on = function(element, event, listener, capture) {
1519	if (element.addEventListener) {
1520	element.addEventListener(event, listener, capture);
1521	} else if (element.attachEvent) {
1522	element.attachEvent('on' + event, listener);
1523	}
1524	};
1525
1526	/**
1527	* Detaches from an internal event.
1528	* @protected
1529	* @param {HTMLElement} element - The event source.
1530	* @param {String} event - The event name.
1531	* @param {Function} listener - The attached event handler to detach.
1532	* @param {Boolean} capture - Wether the attached event handler was registered as a capturing listener or not.
1533	*/
1534	Owl.prototype.off = function(element, event, listener, capture) {
1535	if (element.removeEventListener) {
1536	element.removeEventListener(event, listener, capture);
1537	} else if (element.detachEvent) {
1538	element.detachEvent('on' + event, listener);
1539	}
1540	};
1541
1542	/**
1543	* Triggers a public event.
1544	* @todo Remove `status`, `relatedTarget` should be used instead.
1545	* @protected
1546	* @param {String} name - The event name.
1547	* @param {*} [data=null] - The event data.
1548	* @param {String} [namespace=carousel] - The event namespace.
1549	* @param {String} [state] - The state which is associated with the event.
1550	* @param {Boolean} [enter=false] - Indicates if the call enters the specified state or not.
1551	* @returns {Event} - The event arguments.
1552	*/
1553	Owl.prototype.trigger = function(name, data, namespace, state, enter) {
1554	var status = {
1555	item: { count: this._items.length, index: this.current() }
1556	}, handler = $.camelCase(
1557	$.grep([ 'on', name, namespace ], function(v) { return v })
1558	.join('-').toLowerCase()
1559	), event = $.Event(
1560	[ name, 'owl', namespace \|\| 'carousel' ].join('.').toLowerCase(),
1561	$.extend({ relatedTarget: this }, status, data)
1562	);
1563
1564	if (!this._supress[name]) {
1565	$.each(this._plugins, function(name, plugin) {
1566	if (plugin.onTrigger) {
1567	plugin.onTrigger(event);
1568	}
1569	});
1570
1571	this.register({ type: Owl.Type.Event, name: name });
1572	this.$element.trigger(event);
1573
1574	if (this.settings && typeof this.settings[handler] === 'function') {
1575	this.settings[handler].call(this, event);
1576	}
1577	}
1578
1579	return event;
1580	};
1581
1582	/**
1583	* Enters a state.
1584	* @param name - The state name.
1585	*/
1586	Owl.prototype.enter = function(name) {
1587	$.each([ name ].concat(this._states.tags[name] \|\| []), $.proxy(function(i, name) {
1588	if (this._states.current[name] === undefined) {
1589	this._states.current[name] = 0;
1590	}
1591
1592	this._states.current[name]++;
1593	}, this));
1594	};
1595
1596	/**
1597	* Leaves a state.
1598	* @param name - The state name.
1599	*/
1600	Owl.prototype.leave = function(name) {
1601	$.each([ name ].concat(this._states.tags[name] \|\| []), $.proxy(function(i, name) {
1602	this._states.current[name]--;
1603	}, this));
1604	};
1605
1606	/**
1607	* Registers an event or state.
1608	* @public
1609	* @param {Object} object - The event or state to register.
1610	*/
1611	Owl.prototype.register = function(object) {
1612	if (object.type === Owl.Type.Event) {
1613	if (!$.event.special[object.name]) {
1614	$.event.special[object.name] = {};
1615	}
1616
1617	if (!$.event.special[object.name].owl) {
1618	var _default = $.event.special[object.name]._default;
1619	$.event.special[object.name]._default = function(e) {
1620	if (_default && _default.apply && (!e.namespace \|\| e.namespace.indexOf('owl') === -1)) {
1621	return _default.apply(this, arguments);
1622	}
1623	return e.namespace && e.namespace.indexOf('owl') > -1;
1624	};
1625	$.event.special[object.name].owl = true;
1626	}
1627	} else if (object.type === Owl.Type.State) {
1628	if (!this._states.tags[object.name]) {
1629	this._states.tags[object.name] = object.tags;
1630	} else {
1631	this._states.tags[object.name] = this._states.tags[object.name].concat(object.tags);
1632	}
1633
1634	this._states.tags[object.name] = $.grep(this._states.tags[object.name], $.proxy(function(tag, i) {
1635	return $.inArray(tag, this._states.tags[object.name]) === i;
1636	}, this));
1637	}
1638	};
1639
1640	/**
1641	* Suppresses events.
1642	* @protected
1643	* @param {Array.<String>} events - The events to suppress.
1644	*/
1645	Owl.prototype.suppress = function(events) {
1646	$.each(events, $.proxy(function(index, event) {
1647	this._supress[event] = true;
1648	}, this));
1649	};
1650
1651	/**
1652	* Releases suppressed events.
1653	* @protected
1654	* @param {Array.<String>} events - The events to release.
1655	*/
1656	Owl.prototype.release = function(events) {
1657	$.each(events, $.proxy(function(index, event) {
1658	delete this._supress[event];
1659	}, this));
1660	};
1661
1662	/**
1663	* Gets unified pointer coordinates from event.
1664	* @todo #261
1665	* @protected
1666	* @param {Event} - The `mousedown` or `touchstart` event.
1667	* @returns {Object} - Contains `x` and `y` coordinates of current pointer position.
1668	*/
1669	Owl.prototype.pointer = function(event) {
1670	var result = { x: null, y: null };
1671
1672	event = event.originalEvent \|\| event \|\| window.event;
1673
1674	event = event.touches && event.touches.length ?
1675	event.touches[0] : event.changedTouches && event.changedTouches.length ?
1676	event.changedTouches[0] : event;
1677
1678	if (event.pageX) {
1679	result.x = event.pageX;
1680	result.y = event.pageY;
1681	} else {
1682	result.x = event.clientX;
1683	result.y = event.clientY;
1684	}
1685
1686	return result;
1687	};
1688
1689	/**
1690	* Determines if the input is a Number or something that can be coerced to a Number
1691	* @protected
1692	* @param {Number\|String\|Object\|Array\|Boolean\|RegExp\|Function\|Symbol} - The input to be tested
1693	* @returns {Boolean} - An indication if the input is a Number or can be coerced to a Number
1694	*/
1695	Owl.prototype.isNumeric = function(number) {
1696	return !isNaN(parseFloat(number));
1697	};
1698
1699	/**
1700	* Gets the difference of two vectors.
1701	* @todo #261
1702	* @protected
1703	* @param {Object} - The first vector.
1704	* @param {Object} - The second vector.
1705	* @returns {Object} - The difference.
1706	*/
1707	Owl.prototype.difference = function(first, second) {
1708	return {
1709	x: first.x - second.x,
1710	y: first.y - second.y
1711	};
1712	};
1713
1714	/**
1715	* The jQuery Plugin for the Owl Carousel
1716	* @todo Navigation plugin `next` and `prev`
1717	* @public
1718	*/
1719	$.fn.owlCarousel = function(option) {
1720	var args = Array.prototype.slice.call(arguments, 1);
1721
1722	return this.each(function() {
1723	var $this = $(this),
1724	data = $this.data('owl.carousel');
1725
1726	if (!data) {
1727	data = new Owl(this, typeof option == 'object' && option);
1728	$this.data('owl.carousel', data);
1729
1730	$.each([
1731	'next', 'prev', 'to', 'destroy', 'refresh', 'replace', 'add', 'remove'
1732	], function(i, event) {
1733	data.register({ type: Owl.Type.Event, name: event });
1734	data.$element.on(event + '.owl.carousel.core', $.proxy(function(e) {
1735	if (e.namespace && e.relatedTarget !== this) {
1736	this.suppress([ event ]);
1737	data[event].apply(this, [].slice.call(arguments, 1));
1738	this.release([ event ]);
1739	}
1740	}, data));
1741	});
1742	}
1743
1744	if (typeof option == 'string' && option.charAt(0) !== '_') {
1745	data[option].apply(data, args);
1746	}
1747	});
1748	};
1749
1750	/**
1751	* The constructor for the jQuery Plugin
1752	* @public
1753	*/
1754	$.fn.owlCarousel.Constructor = Owl;
1755
1756	})(window.Zepto \|\| window.jQuery, window, document);
1757