e07d1c8a3139b427db040f8bbfa13b7a97acc73d
2 * jQuery UI Draggable 1.7.1
4 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT (MIT-LICENSE.txt)
6 * and GPL (GPL-LICENSE.txt) licenses.
8 * http://docs.jquery.com/UI/Draggables
15 $.widget("ui.draggable", $.extend({}, $.ui
.mouse
, {
19 if (this.options
.helper
== 'original' && !(/^(?:r|a|f)/).test(this.element
.css("position")))
20 this.element
[0].style
.position
= 'relative';
22 (this.options
.addClasses
&& this.element
.addClass("ui-draggable"));
23 (this.options
.disabled
&& this.element
.addClass("ui-draggable-disabled"));
30 if(!this.element
.data('draggable')) return;
32 .removeData("draggable")
34 .removeClass("ui-draggable"
35 + " ui-draggable-dragging"
36 + " ui-draggable-disabled");
40 _mouseCapture: function(event
) {
44 if (this.helper
|| o
.disabled
|| $(event
.target
).is('.ui-resizable-handle'))
47 //Quit if we're not on a valid handle
48 this.handle
= this._getHandle(event
);
56 _mouseStart: function(event
) {
60 //Create and append the visible helper
61 this.helper
= this._createHelper(event
);
63 //Cache the helper size
64 this._cacheHelperProportions();
66 //If ddmanager is used for droppables, set the global draggable
68 $.ui
.ddmanager
.current
= this;
71 * - Position generation -
72 * This block generates everything position related - it's the core of draggables.
75 //Cache the margins of the original element
78 //Store the helper's css position
79 this.cssPosition
= this.helper
.css("position");
80 this.scrollParent
= this.helper
.scrollParent();
82 //The element's absolute position on the page minus margins
83 this.offset
= this.element
.offset();
85 top
: this.offset
.top
- this.margins
.top
,
86 left
: this.offset
.left
- this.margins
.left
89 $.extend(this.offset
, {
90 click
: { //Where the click happened, relative to the element
91 left
: event
.pageX
- this.offset
.left
,
92 top
: event
.pageY
- this.offset
.top
94 parent
: this._getParentOffset(),
95 relative
: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
98 //Generate the original position
99 this.originalPosition
= this._generatePosition(event
);
100 this.originalPageX
= event
.pageX
;
101 this.originalPageY
= event
.pageY
;
103 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
105 this._adjustOffsetFromHelper(o
.cursorAt
);
107 //Set a containment if given in the options
109 this._setContainment();
111 //Call plugins and callbacks
112 this._trigger("start", event
);
114 //Recache the helper size
115 this._cacheHelperProportions();
117 //Prepare the droppable offsets
118 if ($.ui
.ddmanager
&& !o
.dropBehaviour
)
119 $.ui
.ddmanager
.prepareOffsets(this, event
);
121 this.helper
.addClass("ui-draggable-dragging");
122 this._mouseDrag(event
, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position
126 _mouseDrag: function(event
, noPropagation
) {
128 //Compute the helpers position
129 this.position
= this._generatePosition(event
);
130 this.positionAbs
= this._convertPositionTo("absolute");
132 //Call plugins and callbacks and use the resulting position if something is returned
133 if (!noPropagation
) {
134 var ui
= this._uiHash();
135 this._trigger('drag', event
, ui
);
136 this.position
= ui
.position
;
139 if(!this.options
.axis
|| this.options
.axis
!= "y") this.helper
[0].style
.left
= this.position
.left
+'px';
140 if(!this.options
.axis
|| this.options
.axis
!= "x") this.helper
[0].style
.top
= this.position
.top
+'px';
141 if($.ui
.ddmanager
) $.ui
.ddmanager
.drag(this, event
);
146 _mouseStop: function(event
) {
148 //If we are using droppables, inform the manager about the drop
150 if ($.ui
.ddmanager
&& !this.options
.dropBehaviour
)
151 dropped
= $.ui
.ddmanager
.drop(this, event
);
153 //if a drop comes from outside (a sortable)
155 dropped
= this.dropped
;
156 this.dropped
= false;
159 if((this.options
.revert
== "invalid" && !dropped
) || (this.options
.revert
== "valid" && dropped
) || this.options
.revert
=== true || ($.isFunction(this.options
.revert
) && this.options
.revert
.call(this.element
, dropped
))) {
161 $(this.helper
).animate(this.originalPosition
, parseInt(this.options
.revertDuration
, 10), function() {
162 self
._trigger("stop", event
);
166 this._trigger("stop", event
);
173 _getHandle: function(event
) {
175 var handle
= !this.options
.handle
|| !$(this.options
.handle
, this.element
).length
? true : false;
176 $(this.options
.handle
, this.element
)
180 if(this == event
.target
) handle
= true;
187 _createHelper: function(event
) {
189 var o
= this.options
;
190 var helper
= $.isFunction(o
.helper
) ? $(o
.helper
.apply(this.element
[0], [event
])) : (o
.helper
== 'clone' ? this.element
.clone() : this.element
);
192 if(!helper
.parents('body').length
)
193 helper
.appendTo((o
.appendTo
== 'parent' ? this.element
[0].parentNode
: o
.appendTo
));
195 if(helper
[0] != this.element
[0] && !(/(fixed|absolute)/).test(helper
.css("position")))
196 helper
.css("position", "absolute");
202 _adjustOffsetFromHelper: function(obj
) {
203 if(obj
.left
!= undefined) this.offset
.click
.left
= obj
.left
+ this.margins
.left
;
204 if(obj
.right
!= undefined) this.offset
.click
.left
= this.helperProportions
.width
- obj
.right
+ this.margins
.left
;
205 if(obj
.top
!= undefined) this.offset
.click
.top
= obj
.top
+ this.margins
.top
;
206 if(obj
.bottom
!= undefined) this.offset
.click
.top
= this.helperProportions
.height
- obj
.bottom
+ this.margins
.top
;
209 _getParentOffset: function() {
211 //Get the offsetParent and cache its position
212 this.offsetParent
= this.helper
.offsetParent();
213 var po
= this.offsetParent
.offset();
215 // This is a special case where we need to modify a offset calculated on start, since the following happened:
216 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
217 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
218 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
219 if(this.cssPosition
== 'absolute' && this.scrollParent
[0] != document
&& $.ui
.contains(this.scrollParent
[0], this.offsetParent
[0])) {
220 po
.left
+= this.scrollParent
.scrollLeft();
221 po
.top
+= this.scrollParent
.scrollTop();
224 if((this.offsetParent
[0] == document
.body
) //This needs to be actually done for all browsers, since pageX/pageY includes this information
225 || (this.offsetParent
[0].tagName
&& this.offsetParent
[0].tagName
.toLowerCase() == 'html' && $.browser
.msie
)) //Ugly IE fix
226 po
= { top
: 0, left
: 0 };
229 top
: po
.top
+ (parseInt(this.offsetParent
.css("borderTopWidth"),10) || 0),
230 left
: po
.left
+ (parseInt(this.offsetParent
.css("borderLeftWidth"),10) || 0)
235 _getRelativeOffset: function() {
237 if(this.cssPosition
== "relative") {
238 var p
= this.element
.position();
240 top
: p
.top
- (parseInt(this.helper
.css("top"),10) || 0) + this.scrollParent
.scrollTop(),
241 left
: p
.left
- (parseInt(this.helper
.css("left"),10) || 0) + this.scrollParent
.scrollLeft()
244 return { top
: 0, left
: 0 };
249 _cacheMargins: function() {
251 left
: (parseInt(this.element
.css("marginLeft"),10) || 0),
252 top
: (parseInt(this.element
.css("marginTop"),10) || 0)
256 _cacheHelperProportions: function() {
257 this.helperProportions
= {
258 width
: this.helper
.outerWidth(),
259 height
: this.helper
.outerHeight()
263 _setContainment: function() {
265 var o
= this.options
;
266 if(o
.containment
== 'parent') o
.containment
= this.helper
[0].parentNode
;
267 if(o
.containment
== 'document' || o
.containment
== 'window') this.containment
= [
268 0 - this.offset
.relative
.left
- this.offset
.parent
.left
,
269 0 - this.offset
.relative
.top
- this.offset
.parent
.top
,
270 $(o
.containment
== 'document' ? document
: window
).width() - this.helperProportions
.width
- this.margins
.left
,
271 ($(o
.containment
== 'document' ? document
: window
).height() || document
.body
.parentNode
.scrollHeight
) - this.helperProportions
.height
- this.margins
.top
274 if(!(/^(document|window|parent)$/).test(o
.containment
) && o
.containment
.constructor != Array
) {
275 var ce
= $(o
.containment
)[0]; if(!ce
) return;
276 var co
= $(o
.containment
).offset();
277 var over
= ($(ce
).css("overflow") != 'hidden');
280 co
.left
+ (parseInt($(ce
).css("borderLeftWidth"),10) || 0) + (parseInt($(ce
).css("paddingLeft"),10) || 0) - this.margins
.left
,
281 co
.top
+ (parseInt($(ce
).css("borderTopWidth"),10) || 0) + (parseInt($(ce
).css("paddingTop"),10) || 0) - this.margins
.top
,
282 co
.left
+(over
? Math
.max(ce
.scrollWidth
,ce
.offsetWidth
) : ce
.offsetWidth
) - (parseInt($(ce
).css("borderLeftWidth"),10) || 0) - (parseInt($(ce
).css("paddingRight"),10) || 0) - this.helperProportions
.width
- this.margins
.left
,
283 co
.top
+(over
? Math
.max(ce
.scrollHeight
,ce
.offsetHeight
) : ce
.offsetHeight
) - (parseInt($(ce
).css("borderTopWidth"),10) || 0) - (parseInt($(ce
).css("paddingBottom"),10) || 0) - this.helperProportions
.height
- this.margins
.top
285 } else if(o
.containment
.constructor == Array
) {
286 this.containment
= o
.containment
;
291 _convertPositionTo: function(d
, pos
) {
293 if(!pos
) pos
= this.position
;
294 var mod
= d
== "absolute" ? 1 : -1;
295 var o
= this.options
, scroll
= this.cssPosition
== 'absolute' && !(this.scrollParent
[0] != document
&& $.ui
.contains(this.scrollParent
[0], this.offsetParent
[0])) ? this.offsetParent
: this.scrollParent
, scrollIsRootNode
= (/(html|body)/i).test(scroll
[0].tagName
);
299 pos
.top
// The absolute mouse position
300 + this.offset
.relative
.top
* mod
// Only for relative positioned nodes: Relative offset from element to offset parent
301 + this.offset
.parent
.top
* mod
// The offsetParent's offset without borders (offset + border)
302 - ($.browser
.safari
&& this.cssPosition
== 'fixed' ? 0 : ( this.cssPosition
== 'fixed' ? -this.scrollParent
.scrollTop() : ( scrollIsRootNode
? 0 : scroll
.scrollTop() ) ) * mod
)
305 pos
.left
// The absolute mouse position
306 + this.offset
.relative
.left
* mod
// Only for relative positioned nodes: Relative offset from element to offset parent
307 + this.offset
.parent
.left
* mod
// The offsetParent's offset without borders (offset + border)
308 - ($.browser
.safari
&& this.cssPosition
== 'fixed' ? 0 : ( this.cssPosition
== 'fixed' ? -this.scrollParent
.scrollLeft() : scrollIsRootNode
? 0 : scroll
.scrollLeft() ) * mod
)
314 _generatePosition: function(event
) {
316 var o
= this.options
, scroll
= this.cssPosition
== 'absolute' && !(this.scrollParent
[0] != document
&& $.ui
.contains(this.scrollParent
[0], this.offsetParent
[0])) ? this.offsetParent
: this.scrollParent
, scrollIsRootNode
= (/(html|body)/i).test(scroll
[0].tagName
);
318 // This is another very weird special case that only happens for relative elements:
319 // 1. If the css position is relative
320 // 2. and the scroll parent is the document or similar to the offset parent
321 // we have to refresh the relative offset during the scroll so there are no jumps
322 if(this.cssPosition
== 'relative' && !(this.scrollParent
[0] != document
&& this.scrollParent
[0] != this.offsetParent
[0])) {
323 this.offset
.relative
= this._getRelativeOffset();
326 var pageX
= event
.pageX
;
327 var pageY
= event
.pageY
;
330 * - Position constraining -
331 * Constrain the position to a mix of grid, containment.
334 if(this.originalPosition
) { //If we are not dragging yet, we won't check for options
336 if(this.containment
) {
337 if(event
.pageX
- this.offset
.click
.left
< this.containment
[0]) pageX
= this.containment
[0] + this.offset
.click
.left
;
338 if(event
.pageY
- this.offset
.click
.top
< this.containment
[1]) pageY
= this.containment
[1] + this.offset
.click
.top
;
339 if(event
.pageX
- this.offset
.click
.left
> this.containment
[2]) pageX
= this.containment
[2] + this.offset
.click
.left
;
340 if(event
.pageY
- this.offset
.click
.top
> this.containment
[3]) pageY
= this.containment
[3] + this.offset
.click
.top
;
344 var top
= this.originalPageY
+ Math
.round((pageY
- this.originalPageY
) / o
.grid
[1]) * o
.grid
[1];
345 pageY
= this.containment
? (!(top
- this.offset
.click
.top
< this.containment
[1] || top
- this.offset
.click
.top
> this.containment
[3]) ? top
: (!(top
- this.offset
.click
.top
< this.containment
[1]) ? top
- o
.grid
[1] : top
+ o
.grid
[1])) : top
;
347 var left
= this.originalPageX
+ Math
.round((pageX
- this.originalPageX
) / o
.grid
[0]) * o
.grid
[0];
348 pageX
= this.containment
? (!(left
- this.offset
.click
.left
< this.containment
[0] || left
- this.offset
.click
.left
> this.containment
[2]) ? left
: (!(left
- this.offset
.click
.left
< this.containment
[0]) ? left
- o
.grid
[0] : left
+ o
.grid
[0])) : left
;
355 pageY
// The absolute mouse position
356 - this.offset
.click
.top
// Click offset (relative to the element)
357 - this.offset
.relative
.top
// Only for relative positioned nodes: Relative offset from element to offset parent
358 - this.offset
.parent
.top
// The offsetParent's offset without borders (offset + border)
359 + ($.browser
.safari
&& this.cssPosition
== 'fixed' ? 0 : ( this.cssPosition
== 'fixed' ? -this.scrollParent
.scrollTop() : ( scrollIsRootNode
? 0 : scroll
.scrollTop() ) ))
362 pageX
// The absolute mouse position
363 - this.offset
.click
.left
// Click offset (relative to the element)
364 - this.offset
.relative
.left
// Only for relative positioned nodes: Relative offset from element to offset parent
365 - this.offset
.parent
.left
// The offsetParent's offset without borders (offset + border)
366 + ($.browser
.safari
&& this.cssPosition
== 'fixed' ? 0 : ( this.cssPosition
== 'fixed' ? -this.scrollParent
.scrollLeft() : scrollIsRootNode
? 0 : scroll
.scrollLeft() ))
373 this.helper
.removeClass("ui-draggable-dragging");
374 if(this.helper
[0] != this.element
[0] && !this.cancelHelperRemoval
) this.helper
.remove();
375 //if($.ui.ddmanager) $.ui.ddmanager.current = null;
377 this.cancelHelperRemoval
= false;
380 // From now on bulk stuff - mainly helpers
382 _trigger: function(type
, event
, ui
) {
383 ui
= ui
|| this._uiHash();
384 $.ui
.plugin
.call(this, type
, [event
, ui
]);
385 if(type
== "drag") this.positionAbs
= this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins
386 return $.widget
.prototype._trigger
.call(this, type
, event
, ui
);
391 _uiHash: function(event
) {
394 position
: this.position
,
395 absolutePosition
: this.positionAbs
, //deprecated
396 offset
: this.positionAbs
402 $.extend($.ui
.draggable
, {
409 cancel
: ":input,option",
410 connectToSortable
: false,
421 refreshPositions
: false,
426 scrollSensitivity
: 20,
436 $.ui
.plugin
.add("draggable", "connectToSortable", {
437 start: function(event
, ui
) {
439 var inst
= $(this).data("draggable"), o
= inst
.options
,
440 uiSortable
= $.extend({}, ui
, { item
: inst
.element
});
442 $(o
.connectToSortable
).each(function() {
443 var sortable
= $.data(this, 'sortable');
444 if (sortable
&& !sortable
.options
.disabled
) {
445 inst
.sortables
.push({
447 shouldRevert
: sortable
.options
.revert
449 sortable
._refreshItems(); //Do a one-time refresh at start to refresh the containerCache
450 sortable
._trigger("activate", event
, uiSortable
);
455 stop: function(event
, ui
) {
457 //If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
458 var inst
= $(this).data("draggable"),
459 uiSortable
= $.extend({}, ui
, { item
: inst
.element
});
461 $.each(inst
.sortables
, function() {
462 if(this.instance
.isOver
) {
464 this.instance
.isOver
= 0;
466 inst
.cancelHelperRemoval
= true; //Don't remove the helper in the draggable instance
467 this.instance
.cancelHelperRemoval
= false; //Remove it in the sortable instance (so sortable plugins like revert still work)
469 //The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid'
470 if(this.shouldRevert
) this.instance
.options
.revert
= true;
472 //Trigger the stop of the sortable
473 this.instance
._mouseStop(event
);
475 this.instance
.options
.helper
= this.instance
.options
._helper
;
477 //If the helper has been the original item, restore properties in the sortable
478 if(inst
.options
.helper
== 'original')
479 this.instance
.currentItem
.css({ top
: 'auto', left
: 'auto' });
482 this.instance
.cancelHelperRemoval
= false; //Remove the helper in the sortable instance
483 this.instance
._trigger("deactivate", event
, uiSortable
);
489 drag: function(event
, ui
) {
491 var inst
= $(this).data("draggable"), self
= this;
493 var checkPos = function(o
) {
494 var dyClick
= this.offset
.click
.top
, dxClick
= this.offset
.click
.left
;
495 var helperTop
= this.positionAbs
.top
, helperLeft
= this.positionAbs
.left
;
496 var itemHeight
= o
.height
, itemWidth
= o
.width
;
497 var itemTop
= o
.top
, itemLeft
= o
.left
;
499 return $.ui
.isOver(helperTop
+ dyClick
, helperLeft
+ dxClick
, itemTop
, itemLeft
, itemHeight
, itemWidth
);
502 $.each(inst
.sortables
, function(i
) {
504 //Copy over some variables to allow calling the sortable's native _intersectsWith
505 this.instance
.positionAbs
= inst
.positionAbs
;
506 this.instance
.helperProportions
= inst
.helperProportions
;
507 this.instance
.offset
.click
= inst
.offset
.click
;
509 if(this.instance
._intersectsWith(this.instance
.containerCache
)) {
511 //If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once
512 if(!this.instance
.isOver
) {
514 this.instance
.isOver
= 1;
515 //Now we fake the start of dragging for the sortable instance,
516 //by cloning the list group item, appending it to the sortable and using it as inst.currentItem
517 //We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one)
518 this.instance
.currentItem
= $(self
).clone().appendTo(this.instance
.element
).data("sortable-item", true);
519 this.instance
.options
._helper
= this.instance
.options
.helper
; //Store helper option to later restore it
520 this.instance
.options
.helper = function() { return ui
.helper
[0]; };
522 event
.target
= this.instance
.currentItem
[0];
523 this.instance
._mouseCapture(event
, true);
524 this.instance
._mouseStart(event
, true, true);
526 //Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes
527 this.instance
.offset
.click
.top
= inst
.offset
.click
.top
;
528 this.instance
.offset
.click
.left
= inst
.offset
.click
.left
;
529 this.instance
.offset
.parent
.left
-= inst
.offset
.parent
.left
- this.instance
.offset
.parent
.left
;
530 this.instance
.offset
.parent
.top
-= inst
.offset
.parent
.top
- this.instance
.offset
.parent
.top
;
532 inst
._trigger("toSortable", event
);
533 inst
.dropped
= this.instance
.element
; //draggable revert needs that
534 //hack so receive/update callbacks work (mostly)
535 inst
.currentItem
= inst
.element
;
536 this.instance
.fromOutside
= inst
;
540 //Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable
541 if(this.instance
.currentItem
) this.instance
._mouseDrag(event
);
545 //If it doesn't intersect with the sortable, and it intersected before,
546 //we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval
547 if(this.instance
.isOver
) {
549 this.instance
.isOver
= 0;
550 this.instance
.cancelHelperRemoval
= true;
552 //Prevent reverting on this forced stop
553 this.instance
.options
.revert
= false;
555 // The out event needs to be triggered independently
556 this.instance
._trigger('out', event
, this.instance
._uiHash(this.instance
));
558 this.instance
._mouseStop(event
, true);
559 this.instance
.options
.helper
= this.instance
.options
._helper
;
561 //Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size
562 this.instance
.currentItem
.remove();
563 if(this.instance
.placeholder
) this.instance
.placeholder
.remove();
565 inst
._trigger("fromSortable", event
);
566 inst
.dropped
= false; //draggable revert needs that
576 $.ui
.plugin
.add("draggable", "cursor", {
577 start: function(event
, ui
) {
578 var t
= $('body'), o
= $(this).data('draggable').options
;
579 if (t
.css("cursor")) o
._cursor
= t
.css("cursor");
580 t
.css("cursor", o
.cursor
);
582 stop: function(event
, ui
) {
583 var o
= $(this).data('draggable').options
;
584 if (o
._cursor
) $('body').css("cursor", o
._cursor
);
588 $.ui
.plugin
.add("draggable", "iframeFix", {
589 start: function(event
, ui
) {
590 var o
= $(this).data('draggable').options
;
591 $(o
.iframeFix
=== true ? "iframe" : o
.iframeFix
).each(function() {
592 $('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>')
594 width
: this.offsetWidth
+"px", height
: this.offsetHeight
+"px",
595 position
: "absolute", opacity
: "0.001", zIndex
: 1000
597 .css($(this).offset())
601 stop: function(event
, ui
) {
602 $("div.ui-draggable-iframeFix").each(function() { this.parentNode
.removeChild(this); }); //Remove frame helpers
606 $.ui
.plugin
.add("draggable", "opacity", {
607 start: function(event
, ui
) {
608 var t
= $(ui
.helper
), o
= $(this).data('draggable').options
;
609 if(t
.css("opacity")) o
._opacity
= t
.css("opacity");
610 t
.css('opacity', o
.opacity
);
612 stop: function(event
, ui
) {
613 var o
= $(this).data('draggable').options
;
614 if(o
._opacity
) $(ui
.helper
).css('opacity', o
._opacity
);
618 $.ui
.plugin
.add("draggable", "scroll", {
619 start: function(event
, ui
) {
620 var i
= $(this).data("draggable");
621 if(i
.scrollParent
[0] != document
&& i
.scrollParent
[0].tagName
!= 'HTML') i
.overflowOffset
= i
.scrollParent
.offset();
623 drag: function(event
, ui
) {
625 var i
= $(this).data("draggable"), o
= i
.options
, scrolled
= false;
627 if(i
.scrollParent
[0] != document
&& i
.scrollParent
[0].tagName
!= 'HTML') {
629 if(!o
.axis
|| o
.axis
!= 'x') {
630 if((i
.overflowOffset
.top
+ i
.scrollParent
[0].offsetHeight
) - event
.pageY
< o
.scrollSensitivity
)
631 i
.scrollParent
[0].scrollTop
= scrolled
= i
.scrollParent
[0].scrollTop
+ o
.scrollSpeed
;
632 else if(event
.pageY
- i
.overflowOffset
.top
< o
.scrollSensitivity
)
633 i
.scrollParent
[0].scrollTop
= scrolled
= i
.scrollParent
[0].scrollTop
- o
.scrollSpeed
;
636 if(!o
.axis
|| o
.axis
!= 'y') {
637 if((i
.overflowOffset
.left
+ i
.scrollParent
[0].offsetWidth
) - event
.pageX
< o
.scrollSensitivity
)
638 i
.scrollParent
[0].scrollLeft
= scrolled
= i
.scrollParent
[0].scrollLeft
+ o
.scrollSpeed
;
639 else if(event
.pageX
- i
.overflowOffset
.left
< o
.scrollSensitivity
)
640 i
.scrollParent
[0].scrollLeft
= scrolled
= i
.scrollParent
[0].scrollLeft
- o
.scrollSpeed
;
645 if(!o
.axis
|| o
.axis
!= 'x') {
646 if(event
.pageY
- $(document
).scrollTop() < o
.scrollSensitivity
)
647 scrolled
= $(document
).scrollTop($(document
).scrollTop() - o
.scrollSpeed
);
648 else if($(window
).height() - (event
.pageY
- $(document
).scrollTop()) < o
.scrollSensitivity
)
649 scrolled
= $(document
).scrollTop($(document
).scrollTop() + o
.scrollSpeed
);
652 if(!o
.axis
|| o
.axis
!= 'y') {
653 if(event
.pageX
- $(document
).scrollLeft() < o
.scrollSensitivity
)
654 scrolled
= $(document
).scrollLeft($(document
).scrollLeft() - o
.scrollSpeed
);
655 else if($(window
).width() - (event
.pageX
- $(document
).scrollLeft()) < o
.scrollSensitivity
)
656 scrolled
= $(document
).scrollLeft($(document
).scrollLeft() + o
.scrollSpeed
);
661 if(scrolled
!== false && $.ui
.ddmanager
&& !o
.dropBehaviour
)
662 $.ui
.ddmanager
.prepareOffsets(i
, event
);
667 $.ui
.plugin
.add("draggable", "snap", {
668 start: function(event
, ui
) {
670 var i
= $(this).data("draggable"), o
= i
.options
;
673 $(o
.snap
.constructor != String
? ( o
.snap
.items
|| ':data(draggable)' ) : o
.snap
).each(function() {
674 var $t
= $(this); var $o
= $t
.offset();
675 if(this != i
.element
[0]) i
.snapElements
.push({
677 width
: $t
.outerWidth(), height
: $t
.outerHeight(),
678 top
: $o
.top
, left
: $o
.left
683 drag: function(event
, ui
) {
685 var inst
= $(this).data("draggable"), o
= inst
.options
;
686 var d
= o
.snapTolerance
;
688 var x1
= ui
.offset
.left
, x2
= x1
+ inst
.helperProportions
.width
,
689 y1
= ui
.offset
.top
, y2
= y1
+ inst
.helperProportions
.height
;
691 for (var i
= inst
.snapElements
.length
- 1; i
>= 0; i
--){
693 var l
= inst
.snapElements
[i
].left
, r
= l
+ inst
.snapElements
[i
].width
,
694 t
= inst
.snapElements
[i
].top
, b
= t
+ inst
.snapElements
[i
].height
;
696 //Yes, I know, this is insane ;)
697 if(!((l
-d
< x1
&& x1
< r
+d
&& t
-d
< y1
&& y1
< b
+d
) || (l
-d
< x1
&& x1
< r
+d
&& t
-d
< y2
&& y2
< b
+d
) || (l
-d
< x2
&& x2
< r
+d
&& t
-d
< y1
&& y1
< b
+d
) || (l
-d
< x2
&& x2
< r
+d
&& t
-d
< y2
&& y2
< b
+d
))) {
698 if(inst
.snapElements
[i
].snapping
) (inst
.options
.snap
.release
&& inst
.options
.snap
.release
.call(inst
.element
, event
, $.extend(inst
._uiHash(), { snapItem
: inst
.snapElements
[i
].item
})));
699 inst
.snapElements
[i
].snapping
= false;
703 if(o
.snapMode
!= 'inner') {
704 var ts
= Math
.abs(t
- y2
) <= d
;
705 var bs
= Math
.abs(b
- y1
) <= d
;
706 var ls
= Math
.abs(l
- x2
) <= d
;
707 var rs
= Math
.abs(r
- x1
) <= d
;
708 if(ts
) ui
.position
.top
= inst
._convertPositionTo("relative", { top
: t
- inst
.helperProportions
.height
, left
: 0 }).top
- inst
.margins
.top
;
709 if(bs
) ui
.position
.top
= inst
._convertPositionTo("relative", { top
: b
, left
: 0 }).top
- inst
.margins
.top
;
710 if(ls
) ui
.position
.left
= inst
._convertPositionTo("relative", { top
: 0, left
: l
- inst
.helperProportions
.width
}).left
- inst
.margins
.left
;
711 if(rs
) ui
.position
.left
= inst
._convertPositionTo("relative", { top
: 0, left
: r
}).left
- inst
.margins
.left
;
714 var first
= (ts
|| bs
|| ls
|| rs
);
716 if(o
.snapMode
!= 'outer') {
717 var ts
= Math
.abs(t
- y1
) <= d
;
718 var bs
= Math
.abs(b
- y2
) <= d
;
719 var ls
= Math
.abs(l
- x1
) <= d
;
720 var rs
= Math
.abs(r
- x2
) <= d
;
721 if(ts
) ui
.position
.top
= inst
._convertPositionTo("relative", { top
: t
, left
: 0 }).top
- inst
.margins
.top
;
722 if(bs
) ui
.position
.top
= inst
._convertPositionTo("relative", { top
: b
- inst
.helperProportions
.height
, left
: 0 }).top
- inst
.margins
.top
;
723 if(ls
) ui
.position
.left
= inst
._convertPositionTo("relative", { top
: 0, left
: l
}).left
- inst
.margins
.left
;
724 if(rs
) ui
.position
.left
= inst
._convertPositionTo("relative", { top
: 0, left
: r
- inst
.helperProportions
.width
}).left
- inst
.margins
.left
;
727 if(!inst
.snapElements
[i
].snapping
&& (ts
|| bs
|| ls
|| rs
|| first
))
728 (inst
.options
.snap
.snap
&& inst
.options
.snap
.snap
.call(inst
.element
, event
, $.extend(inst
._uiHash(), { snapItem
: inst
.snapElements
[i
].item
})));
729 inst
.snapElements
[i
].snapping
= (ts
|| bs
|| ls
|| rs
|| first
);
736 $.ui
.plugin
.add("draggable", "stack", {
737 start: function(event
, ui
) {
739 var o
= $(this).data("draggable").options
;
741 var group
= $.makeArray($(o
.stack
.group
)).sort(function(a
,b
) {
742 return (parseInt($(a
).css("zIndex"),10) || o
.stack
.min
) - (parseInt($(b
).css("zIndex"),10) || o
.stack
.min
);
745 $(group
).each(function(i
) {
746 this.style
.zIndex
= o
.stack
.min
+ i
;
749 this[0].style
.zIndex
= o
.stack
.min
+ group
.length
;
754 $.ui
.plugin
.add("draggable", "zIndex", {
755 start: function(event
, ui
) {
756 var t
= $(ui
.helper
), o
= $(this).data("draggable").options
;
757 if(t
.css("zIndex")) o
._zIndex
= t
.css("zIndex");
758 t
.css('zIndex', o
.zIndex
);
760 stop: function(event
, ui
) {
761 var o
= $(this).data("draggable").options
;
762 if(o
._zIndex
) $(ui
.helper
).css('zIndex', o
._zIndex
);