corrade-http-templates – Blame information for rev 57

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57 office 1 /*!
2 * jQuery UI Draggable 1.12.1
3 * http://jqueryui.com
4 *
5 * Copyright jQuery Foundation and other contributors
6 * Released under the MIT license.
7 * http://jquery.org/license
8 */
9  
10 //>>label: Draggable
11 //>>group: Interactions
12 //>>description: Enables dragging functionality for any element.
13 //>>docs: http://api.jqueryui.com/draggable/
14 //>>demos: http://jqueryui.com/draggable/
15 //>>css.structure: ../../themes/base/draggable.css
16  
17 ( function( factory ) {
18 if ( typeof define === "function" && define.amd ) {
19  
20 // AMD. Register as an anonymous module.
21 define( [
22 "jquery",
23 "./mouse",
24 "../data",
25 "../plugin",
26 "../safe-active-element",
27 "../safe-blur",
28 "../scroll-parent",
29 "../version",
30 "../widget"
31 ], factory );
32 } else {
33  
34 // Browser globals
35 factory( jQuery );
36 }
37 }( function( $ ) {
38  
39 $.widget( "ui.draggable", $.ui.mouse, {
40 version: "1.12.1",
41 widgetEventPrefix: "drag",
42 options: {
43 addClasses: true,
44 appendTo: "parent",
45 axis: false,
46 connectToSortable: false,
47 containment: false,
48 cursor: "auto",
49 cursorAt: false,
50 grid: false,
51 handle: false,
52 helper: "original",
53 iframeFix: false,
54 opacity: false,
55 refreshPositions: false,
56 revert: false,
57 revertDuration: 500,
58 scope: "default",
59 scroll: true,
60 scrollSensitivity: 20,
61 scrollSpeed: 20,
62 snap: false,
63 snapMode: "both",
64 snapTolerance: 20,
65 stack: false,
66 zIndex: false,
67  
68 // Callbacks
69 drag: null,
70 start: null,
71 stop: null
72 },
73 _create: function() {
74  
75 if ( this.options.helper === "original" ) {
76 this._setPositionRelative();
77 }
78 if ( this.options.addClasses ) {
79 this._addClass( "ui-draggable" );
80 }
81 this._setHandleClassName();
82  
83 this._mouseInit();
84 },
85  
86 _setOption: function( key, value ) {
87 this._super( key, value );
88 if ( key === "handle" ) {
89 this._removeHandleClassName();
90 this._setHandleClassName();
91 }
92 },
93  
94 _destroy: function() {
95 if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
96 this.destroyOnClear = true;
97 return;
98 }
99 this._removeHandleClassName();
100 this._mouseDestroy();
101 },
102  
103 _mouseCapture: function( event ) {
104 var o = this.options;
105  
106 // Among others, prevent a drag on a resizable-handle
107 if ( this.helper || o.disabled ||
108 $( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) {
109 return false;
110 }
111  
112 //Quit if we're not on a valid handle
113 this.handle = this._getHandle( event );
114 if ( !this.handle ) {
115 return false;
116 }
117  
118 this._blurActiveElement( event );
119  
120 this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );
121  
122 return true;
123  
124 },
125  
126 _blockFrames: function( selector ) {
127 this.iframeBlocks = this.document.find( selector ).map( function() {
128 var iframe = $( this );
129  
130 return $( "<div>" )
131 .css( "position", "absolute" )
132 .appendTo( iframe.parent() )
133 .outerWidth( iframe.outerWidth() )
134 .outerHeight( iframe.outerHeight() )
135 .offset( iframe.offset() )[ 0 ];
136 } );
137 },
138  
139 _unblockFrames: function() {
140 if ( this.iframeBlocks ) {
141 this.iframeBlocks.remove();
142 delete this.iframeBlocks;
143 }
144 },
145  
146 _blurActiveElement: function( event ) {
147 var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
148 target = $( event.target );
149  
150 // Don't blur if the event occurred on an element that is within
151 // the currently focused element
152 // See #10527, #12472
153 if ( target.closest( activeElement ).length ) {
154 return;
155 }
156  
157 // Blur any element that currently has focus, see #4261
158 $.ui.safeBlur( activeElement );
159 },
160  
161 _mouseStart: function( event ) {
162  
163 var o = this.options;
164  
165 //Create and append the visible helper
166 this.helper = this._createHelper( event );
167  
168 this._addClass( this.helper, "ui-draggable-dragging" );
169  
170 //Cache the helper size
171 this._cacheHelperProportions();
172  
173 //If ddmanager is used for droppables, set the global draggable
174 if ( $.ui.ddmanager ) {
175 $.ui.ddmanager.current = this;
176 }
177  
178 /*
179 * - Position generation -
180 * This block generates everything position related - it's the core of draggables.
181 */
182  
183 //Cache the margins of the original element
184 this._cacheMargins();
185  
186 //Store the helper's css position
187 this.cssPosition = this.helper.css( "position" );
188 this.scrollParent = this.helper.scrollParent( true );
189 this.offsetParent = this.helper.offsetParent();
190 this.hasFixedAncestor = this.helper.parents().filter( function() {
191 return $( this ).css( "position" ) === "fixed";
192 } ).length > 0;
193  
194 //The element's absolute position on the page minus margins
195 this.positionAbs = this.element.offset();
196 this._refreshOffsets( event );
197  
198 //Generate the original position
199 this.originalPosition = this.position = this._generatePosition( event, false );
200 this.originalPageX = event.pageX;
201 this.originalPageY = event.pageY;
202  
203 //Adjust the mouse offset relative to the helper if "cursorAt" is supplied
204 ( o.cursorAt && this._adjustOffsetFromHelper( o.cursorAt ) );
205  
206 //Set a containment if given in the options
207 this._setContainment();
208  
209 //Trigger event + callbacks
210 if ( this._trigger( "start", event ) === false ) {
211 this._clear();
212 return false;
213 }
214  
215 //Recache the helper size
216 this._cacheHelperProportions();
217  
218 //Prepare the droppable offsets
219 if ( $.ui.ddmanager && !o.dropBehaviour ) {
220 $.ui.ddmanager.prepareOffsets( this, event );
221 }
222  
223 // Execute the drag once - this causes the helper not to be visible before getting its
224 // correct position
225 this._mouseDrag( event, true );
226  
227 // If the ddmanager is used for droppables, inform the manager that dragging has started
228 // (see #5003)
229 if ( $.ui.ddmanager ) {
230 $.ui.ddmanager.dragStart( this, event );
231 }
232  
233 return true;
234 },
235  
236 _refreshOffsets: function( event ) {
237 this.offset = {
238 top: this.positionAbs.top - this.margins.top,
239 left: this.positionAbs.left - this.margins.left,
240 scroll: false,
241 parent: this._getParentOffset(),
242 relative: this._getRelativeOffset()
243 };
244  
245 this.offset.click = {
246 left: event.pageX - this.offset.left,
247 top: event.pageY - this.offset.top
248 };
249 },
250  
251 _mouseDrag: function( event, noPropagation ) {
252  
253 // reset any necessary cached properties (see #5009)
254 if ( this.hasFixedAncestor ) {
255 this.offset.parent = this._getParentOffset();
256 }
257  
258 //Compute the helpers position
259 this.position = this._generatePosition( event, true );
260 this.positionAbs = this._convertPositionTo( "absolute" );
261  
262 //Call plugins and callbacks and use the resulting position if something is returned
263 if ( !noPropagation ) {
264 var ui = this._uiHash();
265 if ( this._trigger( "drag", event, ui ) === false ) {
266 this._mouseUp( new $.Event( "mouseup", event ) );
267 return false;
268 }
269 this.position = ui.position;
270 }
271  
272 this.helper[ 0 ].style.left = this.position.left + "px";
273 this.helper[ 0 ].style.top = this.position.top + "px";
274  
275 if ( $.ui.ddmanager ) {
276 $.ui.ddmanager.drag( this, event );
277 }
278  
279 return false;
280 },
281  
282 _mouseStop: function( event ) {
283  
284 //If we are using droppables, inform the manager about the drop
285 var that = this,
286 dropped = false;
287 if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
288 dropped = $.ui.ddmanager.drop( this, event );
289 }
290  
291 //if a drop comes from outside (a sortable)
292 if ( this.dropped ) {
293 dropped = this.dropped;
294 this.dropped = false;
295 }
296  
297 if ( ( this.options.revert === "invalid" && !dropped ) ||
298 ( this.options.revert === "valid" && dropped ) ||
299 this.options.revert === true || ( $.isFunction( this.options.revert ) &&
300 this.options.revert.call( this.element, dropped ) )
301 ) {
302 $( this.helper ).animate(
303 this.originalPosition,
304 parseInt( this.options.revertDuration, 10 ),
305 function() {
306 if ( that._trigger( "stop", event ) !== false ) {
307 that._clear();
308 }
309 }
310 );
311 } else {
312 if ( this._trigger( "stop", event ) !== false ) {
313 this._clear();
314 }
315 }
316  
317 return false;
318 },
319  
320 _mouseUp: function( event ) {
321 this._unblockFrames();
322  
323 // If the ddmanager is used for droppables, inform the manager that dragging has stopped
324 // (see #5003)
325 if ( $.ui.ddmanager ) {
326 $.ui.ddmanager.dragStop( this, event );
327 }
328  
329 // Only need to focus if the event occurred on the draggable itself, see #10527
330 if ( this.handleElement.is( event.target ) ) {
331  
332 // The interaction is over; whether or not the click resulted in a drag,
333 // focus the element
334 this.element.trigger( "focus" );
335 }
336  
337 return $.ui.mouse.prototype._mouseUp.call( this, event );
338 },
339  
340 cancel: function() {
341  
342 if ( this.helper.is( ".ui-draggable-dragging" ) ) {
343 this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
344 } else {
345 this._clear();
346 }
347  
348 return this;
349  
350 },
351  
352 _getHandle: function( event ) {
353 return this.options.handle ?
354 !!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
355 true;
356 },
357  
358 _setHandleClassName: function() {
359 this.handleElement = this.options.handle ?
360 this.element.find( this.options.handle ) : this.element;
361 this._addClass( this.handleElement, "ui-draggable-handle" );
362 },
363  
364 _removeHandleClassName: function() {
365 this._removeClass( this.handleElement, "ui-draggable-handle" );
366 },
367  
368 _createHelper: function( event ) {
369  
370 var o = this.options,
371 helperIsFunction = $.isFunction( o.helper ),
372 helper = helperIsFunction ?
373 $( o.helper.apply( this.element[ 0 ], [ event ] ) ) :
374 ( o.helper === "clone" ?
375 this.element.clone().removeAttr( "id" ) :
376 this.element );
377  
378 if ( !helper.parents( "body" ).length ) {
379 helper.appendTo( ( o.appendTo === "parent" ?
380 this.element[ 0 ].parentNode :
381 o.appendTo ) );
382 }
383  
384 // Http://bugs.jqueryui.com/ticket/9446
385 // a helper function can return the original element
386 // which wouldn't have been set to relative in _create
387 if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
388 this._setPositionRelative();
389 }
390  
391 if ( helper[ 0 ] !== this.element[ 0 ] &&
392 !( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
393 helper.css( "position", "absolute" );
394 }
395  
396 return helper;
397  
398 },
399  
400 _setPositionRelative: function() {
401 if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
402 this.element[ 0 ].style.position = "relative";
403 }
404 },
405  
406 _adjustOffsetFromHelper: function( obj ) {
407 if ( typeof obj === "string" ) {
408 obj = obj.split( " " );
409 }
410 if ( $.isArray( obj ) ) {
411 obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 };
412 }
413 if ( "left" in obj ) {
414 this.offset.click.left = obj.left + this.margins.left;
415 }
416 if ( "right" in obj ) {
417 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
418 }
419 if ( "top" in obj ) {
420 this.offset.click.top = obj.top + this.margins.top;
421 }
422 if ( "bottom" in obj ) {
423 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
424 }
425 },
426  
427 _isRootNode: function( element ) {
428 return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
429 },
430  
431 _getParentOffset: function() {
432  
433 //Get the offsetParent and cache its position
434 var po = this.offsetParent.offset(),
435 document = this.document[ 0 ];
436  
437 // This is a special case where we need to modify a offset calculated on start, since the
438 // following happened:
439 // 1. The position of the helper is absolute, so it's position is calculated based on the
440 // next positioned parent
441 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't
442 // the document, which means that the scroll is included in the initial calculation of the
443 // offset of the parent, and never recalculated upon drag
444 if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== document &&
445 $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
446 po.left += this.scrollParent.scrollLeft();
447 po.top += this.scrollParent.scrollTop();
448 }
449  
450 if ( this._isRootNode( this.offsetParent[ 0 ] ) ) {
451 po = { top: 0, left: 0 };
452 }
453  
454 return {
455 top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ),
456 left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 )
457 };
458  
459 },
460  
461 _getRelativeOffset: function() {
462 if ( this.cssPosition !== "relative" ) {
463 return { top: 0, left: 0 };
464 }
465  
466 var p = this.element.position(),
467 scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
468  
469 return {
470 top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
471 ( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
472 left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
473 ( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 )
474 };
475  
476 },
477  
478 _cacheMargins: function() {
479 this.margins = {
480 left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ),
481 top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ),
482 right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ),
483 bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 )
484 };
485 },
486  
487 _cacheHelperProportions: function() {
488 this.helperProportions = {
489 width: this.helper.outerWidth(),
490 height: this.helper.outerHeight()
491 };
492 },
493  
494 _setContainment: function() {
495  
496 var isUserScrollable, c, ce,
497 o = this.options,
498 document = this.document[ 0 ];
499  
500 this.relativeContainer = null;
501  
502 if ( !o.containment ) {
503 this.containment = null;
504 return;
505 }
506  
507 if ( o.containment === "window" ) {
508 this.containment = [
509 $( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
510 $( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
511 $( window ).scrollLeft() + $( window ).width() -
512 this.helperProportions.width - this.margins.left,
513 $( window ).scrollTop() +
514 ( $( window ).height() || document.body.parentNode.scrollHeight ) -
515 this.helperProportions.height - this.margins.top
516 ];
517 return;
518 }
519  
520 if ( o.containment === "document" ) {
521 this.containment = [
522 0,
523 0,
524 $( document ).width() - this.helperProportions.width - this.margins.left,
525 ( $( document ).height() || document.body.parentNode.scrollHeight ) -
526 this.helperProportions.height - this.margins.top
527 ];
528 return;
529 }
530  
531 if ( o.containment.constructor === Array ) {
532 this.containment = o.containment;
533 return;
534 }
535  
536 if ( o.containment === "parent" ) {
537 o.containment = this.helper[ 0 ].parentNode;
538 }
539  
540 c = $( o.containment );
541 ce = c[ 0 ];
542  
543 if ( !ce ) {
544 return;
545 }
546  
547 isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );
548  
549 this.containment = [
550 ( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) +
551 ( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
552 ( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) +
553 ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
554 ( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
555 ( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
556 ( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
557 this.helperProportions.width -
558 this.margins.left -
559 this.margins.right,
560 ( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
561 ( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) -
562 ( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) -
563 this.helperProportions.height -
564 this.margins.top -
565 this.margins.bottom
566 ];
567 this.relativeContainer = c;
568 },
569  
570 _convertPositionTo: function( d, pos ) {
571  
572 if ( !pos ) {
573 pos = this.position;
574 }
575  
576 var mod = d === "absolute" ? 1 : -1,
577 scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
578  
579 return {
580 top: (
581  
582 // The absolute mouse position
583 pos.top +
584  
585 // Only for relative positioned nodes: Relative offset from element to offset parent
586 this.offset.relative.top * mod +
587  
588 // The offsetParent's offset without borders (offset + border)
589 this.offset.parent.top * mod -
590 ( ( this.cssPosition === "fixed" ?
591 -this.offset.scroll.top :
592 ( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
593 ),
594 left: (
595  
596 // The absolute mouse position
597 pos.left +
598  
599 // Only for relative positioned nodes: Relative offset from element to offset parent
600 this.offset.relative.left * mod +
601  
602 // The offsetParent's offset without borders (offset + border)
603 this.offset.parent.left * mod -
604 ( ( this.cssPosition === "fixed" ?
605 -this.offset.scroll.left :
606 ( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
607 )
608 };
609  
610 },
611  
612 _generatePosition: function( event, constrainPosition ) {
613  
614 var containment, co, top, left,
615 o = this.options,
616 scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
617 pageX = event.pageX,
618 pageY = event.pageY;
619  
620 // Cache the scroll
621 if ( !scrollIsRootNode || !this.offset.scroll ) {
622 this.offset.scroll = {
623 top: this.scrollParent.scrollTop(),
624 left: this.scrollParent.scrollLeft()
625 };
626 }
627  
628 /*
629 * - Position constraining -
630 * Constrain the position to a mix of grid, containment.
631 */
632  
633 // If we are not dragging yet, we won't check for options
634 if ( constrainPosition ) {
635 if ( this.containment ) {
636 if ( this.relativeContainer ) {
637 co = this.relativeContainer.offset();
638 containment = [
639 this.containment[ 0 ] + co.left,
640 this.containment[ 1 ] + co.top,
641 this.containment[ 2 ] + co.left,
642 this.containment[ 3 ] + co.top
643 ];
644 } else {
645 containment = this.containment;
646 }
647  
648 if ( event.pageX - this.offset.click.left < containment[ 0 ] ) {
649 pageX = containment[ 0 ] + this.offset.click.left;
650 }
651 if ( event.pageY - this.offset.click.top < containment[ 1 ] ) {
652 pageY = containment[ 1 ] + this.offset.click.top;
653 }
654 if ( event.pageX - this.offset.click.left > containment[ 2 ] ) {
655 pageX = containment[ 2 ] + this.offset.click.left;
656 }
657 if ( event.pageY - this.offset.click.top > containment[ 3 ] ) {
658 pageY = containment[ 3 ] + this.offset.click.top;
659 }
660 }
661  
662 if ( o.grid ) {
663  
664 //Check for grid elements set to 0 to prevent divide by 0 error causing invalid
665 // argument errors in IE (see ticket #6950)
666 top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY -
667 this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY;
668 pageY = containment ? ( ( top - this.offset.click.top >= containment[ 1 ] ||
669 top - this.offset.click.top > containment[ 3 ] ) ?
670 top :
671 ( ( top - this.offset.click.top >= containment[ 1 ] ) ?
672 top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : top;
673  
674 left = o.grid[ 0 ] ? this.originalPageX +
675 Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] :
676 this.originalPageX;
677 pageX = containment ? ( ( left - this.offset.click.left >= containment[ 0 ] ||
678 left - this.offset.click.left > containment[ 2 ] ) ?
679 left :
680 ( ( left - this.offset.click.left >= containment[ 0 ] ) ?
681 left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : left;
682 }
683  
684 if ( o.axis === "y" ) {
685 pageX = this.originalPageX;
686 }
687  
688 if ( o.axis === "x" ) {
689 pageY = this.originalPageY;
690 }
691 }
692  
693 return {
694 top: (
695  
696 // The absolute mouse position
697 pageY -
698  
699 // Click offset (relative to the element)
700 this.offset.click.top -
701  
702 // Only for relative positioned nodes: Relative offset from element to offset parent
703 this.offset.relative.top -
704  
705 // The offsetParent's offset without borders (offset + border)
706 this.offset.parent.top +
707 ( this.cssPosition === "fixed" ?
708 -this.offset.scroll.top :
709 ( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
710 ),
711 left: (
712  
713 // The absolute mouse position
714 pageX -
715  
716 // Click offset (relative to the element)
717 this.offset.click.left -
718  
719 // Only for relative positioned nodes: Relative offset from element to offset parent
720 this.offset.relative.left -
721  
722 // The offsetParent's offset without borders (offset + border)
723 this.offset.parent.left +
724 ( this.cssPosition === "fixed" ?
725 -this.offset.scroll.left :
726 ( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
727 )
728 };
729  
730 },
731  
732 _clear: function() {
733 this._removeClass( this.helper, "ui-draggable-dragging" );
734 if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
735 this.helper.remove();
736 }
737 this.helper = null;
738 this.cancelHelperRemoval = false;
739 if ( this.destroyOnClear ) {
740 this.destroy();
741 }
742 },
743  
744 // From now on bulk stuff - mainly helpers
745  
746 _trigger: function( type, event, ui ) {
747 ui = ui || this._uiHash();
748 $.ui.plugin.call( this, type, [ event, ui, this ], true );
749  
750 // Absolute position and offset (see #6884 ) have to be recalculated after plugins
751 if ( /^(drag|start|stop)/.test( type ) ) {
752 this.positionAbs = this._convertPositionTo( "absolute" );
753 ui.offset = this.positionAbs;
754 }
755 return $.Widget.prototype._trigger.call( this, type, event, ui );
756 },
757  
758 plugins: {},
759  
760 _uiHash: function() {
761 return {
762 helper: this.helper,
763 position: this.position,
764 originalPosition: this.originalPosition,
765 offset: this.positionAbs
766 };
767 }
768  
769 } );
770  
771 $.ui.plugin.add( "draggable", "connectToSortable", {
772 start: function( event, ui, draggable ) {
773 var uiSortable = $.extend( {}, ui, {
774 item: draggable.element
775 } );
776  
777 draggable.sortables = [];
778 $( draggable.options.connectToSortable ).each( function() {
779 var sortable = $( this ).sortable( "instance" );
780  
781 if ( sortable && !sortable.options.disabled ) {
782 draggable.sortables.push( sortable );
783  
784 // RefreshPositions is called at drag start to refresh the containerCache
785 // which is used in drag. This ensures it's initialized and synchronized
786 // with any changes that might have happened on the page since initialization.
787 sortable.refreshPositions();
788 sortable._trigger( "activate", event, uiSortable );
789 }
790 } );
791 },
792 stop: function( event, ui, draggable ) {
793 var uiSortable = $.extend( {}, ui, {
794 item: draggable.element
795 } );
796  
797 draggable.cancelHelperRemoval = false;
798  
799 $.each( draggable.sortables, function() {
800 var sortable = this;
801  
802 if ( sortable.isOver ) {
803 sortable.isOver = 0;
804  
805 // Allow this sortable to handle removing the helper
806 draggable.cancelHelperRemoval = true;
807 sortable.cancelHelperRemoval = false;
808  
809 // Use _storedCSS To restore properties in the sortable,
810 // as this also handles revert (#9675) since the draggable
811 // may have modified them in unexpected ways (#8809)
812 sortable._storedCSS = {
813 position: sortable.placeholder.css( "position" ),
814 top: sortable.placeholder.css( "top" ),
815 left: sortable.placeholder.css( "left" )
816 };
817  
818 sortable._mouseStop( event );
819  
820 // Once drag has ended, the sortable should return to using
821 // its original helper, not the shared helper from draggable
822 sortable.options.helper = sortable.options._helper;
823 } else {
824  
825 // Prevent this Sortable from removing the helper.
826 // However, don't set the draggable to remove the helper
827 // either as another connected Sortable may yet handle the removal.
828 sortable.cancelHelperRemoval = true;
829  
830 sortable._trigger( "deactivate", event, uiSortable );
831 }
832 } );
833 },
834 drag: function( event, ui, draggable ) {
835 $.each( draggable.sortables, function() {
836 var innermostIntersecting = false,
837 sortable = this;
838  
839 // Copy over variables that sortable's _intersectsWith uses
840 sortable.positionAbs = draggable.positionAbs;
841 sortable.helperProportions = draggable.helperProportions;
842 sortable.offset.click = draggable.offset.click;
843  
844 if ( sortable._intersectsWith( sortable.containerCache ) ) {
845 innermostIntersecting = true;
846  
847 $.each( draggable.sortables, function() {
848  
849 // Copy over variables that sortable's _intersectsWith uses
850 this.positionAbs = draggable.positionAbs;
851 this.helperProportions = draggable.helperProportions;
852 this.offset.click = draggable.offset.click;
853  
854 if ( this !== sortable &&
855 this._intersectsWith( this.containerCache ) &&
856 $.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
857 innermostIntersecting = false;
858 }
859  
860 return innermostIntersecting;
861 } );
862 }
863  
864 if ( innermostIntersecting ) {
865  
866 // If it intersects, we use a little isOver variable and set it once,
867 // so that the move-in stuff gets fired only once.
868 if ( !sortable.isOver ) {
869 sortable.isOver = 1;
870  
871 // Store draggable's parent in case we need to reappend to it later.
872 draggable._parent = ui.helper.parent();
873  
874 sortable.currentItem = ui.helper
875 .appendTo( sortable.element )
876 .data( "ui-sortable-item", true );
877  
878 // Store helper option to later restore it
879 sortable.options._helper = sortable.options.helper;
880  
881 sortable.options.helper = function() {
882 return ui.helper[ 0 ];
883 };
884  
885 // Fire the start events of the sortable with our passed browser event,
886 // and our own helper (so it doesn't create a new one)
887 event.target = sortable.currentItem[ 0 ];
888 sortable._mouseCapture( event, true );
889 sortable._mouseStart( event, true, true );
890  
891 // Because the browser event is way off the new appended portlet,
892 // modify necessary variables to reflect the changes
893 sortable.offset.click.top = draggable.offset.click.top;
894 sortable.offset.click.left = draggable.offset.click.left;
895 sortable.offset.parent.left -= draggable.offset.parent.left -
896 sortable.offset.parent.left;
897 sortable.offset.parent.top -= draggable.offset.parent.top -
898 sortable.offset.parent.top;
899  
900 draggable._trigger( "toSortable", event );
901  
902 // Inform draggable that the helper is in a valid drop zone,
903 // used solely in the revert option to handle "valid/invalid".
904 draggable.dropped = sortable.element;
905  
906 // Need to refreshPositions of all sortables in the case that
907 // adding to one sortable changes the location of the other sortables (#9675)
908 $.each( draggable.sortables, function() {
909 this.refreshPositions();
910 } );
911  
912 // Hack so receive/update callbacks work (mostly)
913 draggable.currentItem = draggable.element;
914 sortable.fromOutside = draggable;
915 }
916  
917 if ( sortable.currentItem ) {
918 sortable._mouseDrag( event );
919  
920 // Copy the sortable's position because the draggable's can potentially reflect
921 // a relative position, while sortable is always absolute, which the dragged
922 // element has now become. (#8809)
923 ui.position = sortable.position;
924 }
925 } else {
926  
927 // If it doesn't intersect with the sortable, and it intersected before,
928 // we fake the drag stop of the sortable, but make sure it doesn't remove
929 // the helper by using cancelHelperRemoval.
930 if ( sortable.isOver ) {
931  
932 sortable.isOver = 0;
933 sortable.cancelHelperRemoval = true;
934  
935 // Calling sortable's mouseStop would trigger a revert,
936 // so revert must be temporarily false until after mouseStop is called.
937 sortable.options._revert = sortable.options.revert;
938 sortable.options.revert = false;
939  
940 sortable._trigger( "out", event, sortable._uiHash( sortable ) );
941 sortable._mouseStop( event, true );
942  
943 // Restore sortable behaviors that were modfied
944 // when the draggable entered the sortable area (#9481)
945 sortable.options.revert = sortable.options._revert;
946 sortable.options.helper = sortable.options._helper;
947  
948 if ( sortable.placeholder ) {
949 sortable.placeholder.remove();
950 }
951  
952 // Restore and recalculate the draggable's offset considering the sortable
953 // may have modified them in unexpected ways. (#8809, #10669)
954 ui.helper.appendTo( draggable._parent );
955 draggable._refreshOffsets( event );
956 ui.position = draggable._generatePosition( event, true );
957  
958 draggable._trigger( "fromSortable", event );
959  
960 // Inform draggable that the helper is no longer in a valid drop zone
961 draggable.dropped = false;
962  
963 // Need to refreshPositions of all sortables just in case removing
964 // from one sortable changes the location of other sortables (#9675)
965 $.each( draggable.sortables, function() {
966 this.refreshPositions();
967 } );
968 }
969 }
970 } );
971 }
972 } );
973  
974 $.ui.plugin.add( "draggable", "cursor", {
975 start: function( event, ui, instance ) {
976 var t = $( "body" ),
977 o = instance.options;
978  
979 if ( t.css( "cursor" ) ) {
980 o._cursor = t.css( "cursor" );
981 }
982 t.css( "cursor", o.cursor );
983 },
984 stop: function( event, ui, instance ) {
985 var o = instance.options;
986 if ( o._cursor ) {
987 $( "body" ).css( "cursor", o._cursor );
988 }
989 }
990 } );
991  
992 $.ui.plugin.add( "draggable", "opacity", {
993 start: function( event, ui, instance ) {
994 var t = $( ui.helper ),
995 o = instance.options;
996 if ( t.css( "opacity" ) ) {
997 o._opacity = t.css( "opacity" );
998 }
999 t.css( "opacity", o.opacity );
1000 },
1001 stop: function( event, ui, instance ) {
1002 var o = instance.options;
1003 if ( o._opacity ) {
1004 $( ui.helper ).css( "opacity", o._opacity );
1005 }
1006 }
1007 } );
1008  
1009 $.ui.plugin.add( "draggable", "scroll", {
1010 start: function( event, ui, i ) {
1011 if ( !i.scrollParentNotHidden ) {
1012 i.scrollParentNotHidden = i.helper.scrollParent( false );
1013 }
1014  
1015 if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] &&
1016 i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
1017 i.overflowOffset = i.scrollParentNotHidden.offset();
1018 }
1019 },
1020 drag: function( event, ui, i ) {
1021  
1022 var o = i.options,
1023 scrolled = false,
1024 scrollParent = i.scrollParentNotHidden[ 0 ],
1025 document = i.document[ 0 ];
1026  
1027 if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
1028 if ( !o.axis || o.axis !== "x" ) {
1029 if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY <
1030 o.scrollSensitivity ) {
1031 scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
1032 } else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
1033 scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
1034 }
1035 }
1036  
1037 if ( !o.axis || o.axis !== "y" ) {
1038 if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX <
1039 o.scrollSensitivity ) {
1040 scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
1041 } else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
1042 scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed;
1043 }
1044 }
1045  
1046 } else {
1047  
1048 if ( !o.axis || o.axis !== "x" ) {
1049 if ( event.pageY - $( document ).scrollTop() < o.scrollSensitivity ) {
1050 scrolled = $( document ).scrollTop( $( document ).scrollTop() - o.scrollSpeed );
1051 } else if ( $( window ).height() - ( event.pageY - $( document ).scrollTop() ) <
1052 o.scrollSensitivity ) {
1053 scrolled = $( document ).scrollTop( $( document ).scrollTop() + o.scrollSpeed );
1054 }
1055 }
1056  
1057 if ( !o.axis || o.axis !== "y" ) {
1058 if ( event.pageX - $( document ).scrollLeft() < o.scrollSensitivity ) {
1059 scrolled = $( document ).scrollLeft(
1060 $( document ).scrollLeft() - o.scrollSpeed
1061 );
1062 } else if ( $( window ).width() - ( event.pageX - $( document ).scrollLeft() ) <
1063 o.scrollSensitivity ) {
1064 scrolled = $( document ).scrollLeft(
1065 $( document ).scrollLeft() + o.scrollSpeed
1066 );
1067 }
1068 }
1069  
1070 }
1071  
1072 if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
1073 $.ui.ddmanager.prepareOffsets( i, event );
1074 }
1075  
1076 }
1077 } );
1078  
1079 $.ui.plugin.add( "draggable", "snap", {
1080 start: function( event, ui, i ) {
1081  
1082 var o = i.options;
1083  
1084 i.snapElements = [];
1085  
1086 $( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap )
1087 .each( function() {
1088 var $t = $( this ),
1089 $o = $t.offset();
1090 if ( this !== i.element[ 0 ] ) {
1091 i.snapElements.push( {
1092 item: this,
1093 width: $t.outerWidth(), height: $t.outerHeight(),
1094 top: $o.top, left: $o.left
1095 } );
1096 }
1097 } );
1098  
1099 },
1100 drag: function( event, ui, inst ) {
1101  
1102 var ts, bs, ls, rs, l, r, t, b, i, first,
1103 o = inst.options,
1104 d = o.snapTolerance,
1105 x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
1106 y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;
1107  
1108 for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {
1109  
1110 l = inst.snapElements[ i ].left - inst.margins.left;
1111 r = l + inst.snapElements[ i ].width;
1112 t = inst.snapElements[ i ].top - inst.margins.top;
1113 b = t + inst.snapElements[ i ].height;
1114  
1115 if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d ||
1116 !$.contains( inst.snapElements[ i ].item.ownerDocument,
1117 inst.snapElements[ i ].item ) ) {
1118 if ( inst.snapElements[ i ].snapping ) {
1119 ( inst.options.snap.release &&
1120 inst.options.snap.release.call(
1121 inst.element,
1122 event,
1123 $.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } )
1124 ) );
1125 }
1126 inst.snapElements[ i ].snapping = false;
1127 continue;
1128 }
1129  
1130 if ( o.snapMode !== "inner" ) {
1131 ts = Math.abs( t - y2 ) <= d;
1132 bs = Math.abs( b - y1 ) <= d;
1133 ls = Math.abs( l - x2 ) <= d;
1134 rs = Math.abs( r - x1 ) <= d;
1135 if ( ts ) {
1136 ui.position.top = inst._convertPositionTo( "relative", {
1137 top: t - inst.helperProportions.height,
1138 left: 0
1139 } ).top;
1140 }
1141 if ( bs ) {
1142 ui.position.top = inst._convertPositionTo( "relative", {
1143 top: b,
1144 left: 0
1145 } ).top;
1146 }
1147 if ( ls ) {
1148 ui.position.left = inst._convertPositionTo( "relative", {
1149 top: 0,
1150 left: l - inst.helperProportions.width
1151 } ).left;
1152 }
1153 if ( rs ) {
1154 ui.position.left = inst._convertPositionTo( "relative", {
1155 top: 0,
1156 left: r
1157 } ).left;
1158 }
1159 }
1160  
1161 first = ( ts || bs || ls || rs );
1162  
1163 if ( o.snapMode !== "outer" ) {
1164 ts = Math.abs( t - y1 ) <= d;
1165 bs = Math.abs( b - y2 ) <= d;
1166 ls = Math.abs( l - x1 ) <= d;
1167 rs = Math.abs( r - x2 ) <= d;
1168 if ( ts ) {
1169 ui.position.top = inst._convertPositionTo( "relative", {
1170 top: t,
1171 left: 0
1172 } ).top;
1173 }
1174 if ( bs ) {
1175 ui.position.top = inst._convertPositionTo( "relative", {
1176 top: b - inst.helperProportions.height,
1177 left: 0
1178 } ).top;
1179 }
1180 if ( ls ) {
1181 ui.position.left = inst._convertPositionTo( "relative", {
1182 top: 0,
1183 left: l
1184 } ).left;
1185 }
1186 if ( rs ) {
1187 ui.position.left = inst._convertPositionTo( "relative", {
1188 top: 0,
1189 left: r - inst.helperProportions.width
1190 } ).left;
1191 }
1192 }
1193  
1194 if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) {
1195 ( inst.options.snap.snap &&
1196 inst.options.snap.snap.call(
1197 inst.element,
1198 event,
1199 $.extend( inst._uiHash(), {
1200 snapItem: inst.snapElements[ i ].item
1201 } ) ) );
1202 }
1203 inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first );
1204  
1205 }
1206  
1207 }
1208 } );
1209  
1210 $.ui.plugin.add( "draggable", "stack", {
1211 start: function( event, ui, instance ) {
1212 var min,
1213 o = instance.options,
1214 group = $.makeArray( $( o.stack ) ).sort( function( a, b ) {
1215 return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) -
1216 ( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 );
1217 } );
1218  
1219 if ( !group.length ) { return; }
1220  
1221 min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
1222 $( group ).each( function( i ) {
1223 $( this ).css( "zIndex", min + i );
1224 } );
1225 this.css( "zIndex", ( min + group.length ) );
1226 }
1227 } );
1228  
1229 $.ui.plugin.add( "draggable", "zIndex", {
1230 start: function( event, ui, instance ) {
1231 var t = $( ui.helper ),
1232 o = instance.options;
1233  
1234 if ( t.css( "zIndex" ) ) {
1235 o._zIndex = t.css( "zIndex" );
1236 }
1237 t.css( "zIndex", o.zIndex );
1238 },
1239 stop: function( event, ui, instance ) {
1240 var o = instance.options;
1241  
1242 if ( o._zIndex ) {
1243 $( ui.helper ).css( "zIndex", o._zIndex );
1244 }
1245 }
1246 } );
1247  
1248 return $.ui.draggable;
1249  
1250 } ) );