Update:

This only happens with some have content and some do not. When all have content in the second div, it moves freely. Although they sometime disappear.

An additional test. Those id's have no css linked to it. You cannot drag the first list item below the last.

<ul id='sort'>
		<li><div>1<div><br /> 2</div></div></li>

		<li><div>2</div></li>
		<li><div>3</div></li>
		<li><div>4</div></li>
	</ul>
</div>
<script type='text/javascript'>
	$("#sort").sortable({ items: "li", revert: true, tree: true });
</script>

Attaching my version (grabbed from ui.jquery, personalized (contains everything). I have modified it where I think the error is occurring. drag: function(e) acts funny when the nested (or multipule does not have to be nested) is dragged, reporting the item number and the max items differently than the rest of the items.

Nevermind I cannot do that. I'll see if I can copy and paste here.

{{{

/*

• jQuery UI @VERSION

*

• Copyright (c) 2008 Paul Bakaus (ui.jquery.com)
• Dual licensed under the MIT (MIT-LICENSE.txt)
• and GPL (GPL-LICENSE.txt) licenses.

*

• http://docs.jquery.com/UI

*

• $Date: 2008-05-04 16:52:15 +0200 (So, 04 Mai 2008) $
• $Rev: 5419 $

*/

;(function($) {

$.ui = $.ui || {};

Add methods that are vital for all mouse interaction stuff

(plugin registering)

$.extend($.ui, {

plugin: {

add: function(module, option, set) {

var proto = $.ui[module].prototype;

for(var i in set) {

proto.plugins[i] = proto.plugins[i] || [];

proto.plugins[i].push([option, set[i]]);

}

},

call: function(instance, name, args) {

var set = instance.plugins[name];

if(!set) { return; }

for (var i = 0; i < set.length; i++) {

if (instance.options[set[i][0]]) {

set[i][1].apply(instance.element, args);

}

}

}

},

cssCache: {},

css: function(name) {

if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }

var tmp = $('<div class="ui-resizable-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');

if (!$.browser.safari)

tmp.appendTo('body');

Opera and Safari set width and height to 0px instead of auto

Safari returns rgba(0,0,0,0) when bgcolor is not set

$.ui.cssCache[name] = !!(

(!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) ||

!(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\\(0, 0, 0, 0\\)/).test(tmp.css('backgroundColor')))

);

try { $('body').get(0).removeChild(tmp.get(0)); } catch(e){}

return $.ui.cssCache[name];

},

disableSelection: function(e) {

e.unselectable = "on";

e.onselectstart = function() { return false; };

if (e.style) { e.style.MozUserSelect = "none"; }

},

enableSelection: function(e) {

e.unselectable = "off";

e.onselectstart = function() { return true; };

if (e.style) { e.style.MozUserSelect = ""; }

},

hasScroll: function(e, a) {

var scroll = /top/.test(a||"top") ? 'scrollTop' : 'scrollLeft', has = false;

if (e[scroll] > 0) return true; e[scroll] = 1;

has = e[scroll] > 0 ? true : false; e[scroll] = 0;

return has;

}

});

/** jQuery core modifications and additions **/

var _remove = $.fn.remove;

$.fn.remove = function() {

$("*", this).add(this).trigger("remove");

return _remove.apply(this, arguments );

};

$.widget is a factory to create jQuery plugins

taking some boilerplate code out of the plugin code

// created by Scott González and Jörn Zaefferer

function getter(namespace, plugin, method) {

var methods = $[namespace][plugin].getter || [];

methods = (typeof methods == "string" ? methods.split(/,?\\s+/) : methods);

return ($.inArray(method, methods) != -1);

};

var widgetPrototype = {

init: function() {},

destroy: function() {},

getData: function(e, key) {

return this.options[key];

},

setData: function(e, key, value) {

this.options[key] = value;

},

enable: function() {

this.setData(null, 'disabled', false);

},

disable: function() {

this.setData(null, 'disabled', true);

}

};

$.widget = function(name, prototype) {

var namespace = name.split(".")[0];

name = name.split(".")[1];

create plugin method

$.fn[name] = function(options, data) {

var isMethodCall = (typeof options == 'string'),

args = arguments;

if (isMethodCall && getter(namespace, name, options)) {

var instance = $.data(this[0], name);

return (instance ? instance[options](data) : undefined);

}

return this.each(function() {

var instance = $.data(this, name);

if (!instance) {

$.data(this, name, new $[namespace][name](this, options));

} else if (isMethodCall) {

instance[options].apply(instance, $.makeArray(args).slice(1));

}

});

};

create widget constructor

$[namespace][name] = function(element, options) {

var self = this;

this.options = $.extend({}, $[namespace][name].defaults, options);

this.element = $(element)

.bind('setData.' + name, function(e, key, value) {

return self.setData(e, key, value);

})

.bind('getData.' + name, function(e, key) {

return self.getData(e, key);

})

.bind('remove', function() {

return self.destroy();

});

this.init();

};

// add widget prototype

$[namespace][name].prototype = $.extend({}, widgetPrototype, prototype);

};

/** Mouse Interaction Plugin **/

$.widget("ui.mouse", {

init: function() {

var self = this;

this.element

.bind('mousedown.mouse', function() { return self.click.apply(self, arguments); })

.bind('mouseup.mouse', function() { (self.timer && clearInterval(self.timer)); })

.bind('click.mouse', function() { if(self.initialized) { self.initialized = false; return false; } });

Prevent text selection in IE

if ($.browser.msie) {

this.unselectable = this.element.attr('unselectable');

this.element.attr('unselectable', 'on');

}

},

destroy: function() {

this.element.unbind('.mouse').removeData("mouse");

($.browser.msie && this.element.attr('unselectable', this.unselectable));

},

trigger: function() { return this.click.apply(this, arguments); },

click: function(e) {

if( e.which != 1 only left click starts dragging

|| $.inArray(e.target.nodeName.toLowerCase(), this.options.dragPrevention || []) != -1 Prevent execution on defined elements

|| (this.options.condition && !this.options.condition.apply(this.options.executor || this, [e, this.element])) Prevent execution on condition

) { return true; }

var self = this;

this.initialized = false;

var initialize = function() {

self._MP = { left: e.pageX, top: e.pageY }; Store the click mouse position

$(document).bind('mouseup.mouse', function() { return self.stop.apply(self, arguments); });

$(document).bind('mousemove.mouse', function() { return self.drag.apply(self, arguments); });

if(!self.initalized && Math.abs(self._MP.left-e.pageX) >= self.options.distance || Math.abs(self._MP.top-e.pageY) >= self.options.distance) {

(self.options.start && self.options.start.call(self.options.executor || self, e, self.element));

(self.options.drag && self.options.drag.call(self.options.executor || self, e, this.element)); This is actually not correct, but expected

self.initialized = true;

}

};

if(this.options.delay) {

if(this.timer) { clearInterval(this.timer); }

this.timer = setTimeout(initialize, this.options.delay);

} else {

initialize();

}

return false;

},

stop: function(e) {

if(!this.initialized) {

return $(document).unbind('mouseup.mouse').unbind('mousemove.mouse');

}

(this.options.stop && this.options.stop.call(this.options.executor || this, e, this.element));

$(document).unbind('mouseup.mouse').unbind('mousemove.mouse');

return false;

},

drag: function(e) {

var o = this.options;

if ($.browser.msie && !e.button) {

return this.stop.call(this, e); // IE mouseup check

}

if(!this.initialized && (Math.abs(this._MP.left-e.pageX) >= o.distance || Math.abs(this._MP.top-e.pageY) >= o.distance)) {

(o.start && o.start.call(o.executor || this, e, this.element));

this.initialized = true;

} else {

if(!this.initialized) { return false; }

}

(o.drag && o.drag.call(this.options.executor || this, e, this.element));

return false;

}

});

})(jQuery);

/*

• jQuery UI Draggable

*

• Copyright (c) 2008 Paul Bakaus
• Dual licensed under the MIT (MIT-LICENSE.txt)
• and GPL (GPL-LICENSE.txt) licenses.
*
• http://docs.jquery.com/UI/Draggables

*

• Depends:

* ui.core.js

*

• Revision: $Id: ui.draggable.js 5433 2008-05-04 20:07:17Z joern.zaefferer $

*/

;(function($) {

$.widget("ui.draggable", {

init: function() {

Initialize needed constants

var o = this.options;

Initialize mouse events for interaction

this.element.mouse({

executor: this,

delay: o.delay,

distance: o.distance,

dragPrevention: o.cancel,

start: this.start,

stop: this.stop,

drag: this.drag,

condition: function(e) {

var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;

if(!handle) $(this.options.handle, this.element).each(function() { if(this == e.target) handle = true; });

return !(e.target.className.indexOf("ui-resizable-handle") != -1 || this.options.disabled) && handle;

}

});

//Position the node

if(o.helper == 'original' && !(/(relative|absolute|fixed)/).test(this.element.css('position')))

this.element.css('position', 'relative');

},

start: function(e) {

var o = this.options;

if($.ui.ddmanager) $.ui.ddmanager.current = this;

//Create and append the visible helper

this.helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [e])) : (o.helper == 'clone' ? this.element.clone() : this.element);

if(!this.helper.parents('body').length) this.helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));

if(!this.helper.css("position") || this.helper.css("position") == "static") this.helper.css("position", "absolute");

/*

• - Position generation -
• This block generates everything position related - it's the core of draggables.

*/

this.margins = { Cache the margins

left: (parseInt(this.element.css("marginLeft"),10) || 0),

top: (parseInt(this.element.css("marginTop"),10) || 0)

};

this.cssPosition = this.helper.css("position"); Store the helper's css position

this.offset = this.element.offset(); The element's absolute position on the page

this.offset = { Substract the margins from the element's absolute offset

top: this.offset.top - this.margins.top,

left: this.offset.left - this.margins.left

};

this.offset.click = { Where the click happened, relative to the element

left: e.pageX - this.offset.left,

top: e.pageY - this.offset.top

};

this.offsetParent = this.helper.offsetParent(); var po = this.offsetParent.offset(); Get the offsetParent and cache its position

this.offset.parent = { Store its position plus border

top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),

left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)

};

var p = this.element.position(); This is a relative to absolute position minus the actual position calculation - only used for relative positioned helpers

this.offset.relative = this.cssPosition == "relative" ? {

top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.offsetParent[0].scrollTop,

left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.offsetParent[0].scrollLeft

} : { top: 0, left: 0 };

this.originalPosition = this.generatePosition(e); Generate the original position

this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };Cache the helper size

if(o.cursorAt) {

if(o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left;

if(o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right;

if(o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top;

if(o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom;

}

/*

• - Position constraining -
• Here we prepare position constraining like grid and containment.

*/

if(o.containment) {

if(o.containment == 'parent') o.containment = this.helper[0].parentNode;

if(o.containment == 'document') this.containment = [0,0,$(document).width(), ($(document).height() || document.body.parentNode.scrollHeight)];

if(!(/^(document|window|parent)$/).test(o.containment)) {

var ce = $(o.containment)[0];

var co = $(o.containment).offset();

this.containment = [

co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left,

co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.relative.top - this.offset.parent.top,

co.left+Math.max(ce.scrollWidth,ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0),

co.top+Math.max(ce.scrollHeight,ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"),10) || 0)

];

}

}

Call plugins and callbacks

this.propagate("start", e);

this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };Recache the helper size

if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);

return false;

},

convertPositionTo: function(d, pos) {

if(!pos) pos = this.position;

var mod = d == "absolute" ? 1 : -1;

return {

top: (

pos.top the calculated relative position

+ this.offset.relative.top * mod Only for relative positioned nodes: Relative offset from element to offset parent

+ this.offset.parent.top * mod The offsetParent's offset without borders (offset + border)

• (this.cssPosition == "fixed" ? 0 : this.offsetParent[0].scrollTop) * mod The offsetParent's scroll position, not if the element is fixed

+ this.margins.top * mod Add the margin (you don't want the margin counting in intersection methods)

),

left: (

pos.left the calculated relative position

+ this.offset.relative.left * mod Only for relative positioned nodes: Relative offset from element to offset parent

+ this.offset.parent.left * mod The offsetParent's offset without borders (offset + border)

• (this.cssPosition == "fixed" ? 0 : this.offsetParent[0].scrollLeft) * mod The offsetParent's scroll position, not if the element is fixed

+ this.margins.left * mod Add the margin (you don't want the margin counting in intersection methods)

)

};

},

generatePosition: function(e) {

var o = this.options;

var position = {

top: (

e.pageY The absolute mouse position

• this.offset.click.top Click offset (relative to the element)
• this.offset.relative.top Only for relative positioned nodes: Relative offset from element to offset parent
• this.offset.parent.top The offsetParent's offset without borders (offset + border)

+ (this.cssPosition == "fixed" ? 0 : this.offsetParent[0].scrollTop) The offsetParent's scroll position, not if the element is fixed

),

left: (

e.pageX The absolute mouse position

• this.offset.click.left Click offset (relative to the element)
• this.offset.relative.left Only for relative positioned nodes: Relative offset from element to offset parent
• this.offset.parent.left The offsetParent's offset without borders (offset + border)

+ (this.cssPosition == "fixed" ? 0 : this.offsetParent[0].scrollLeft) The offsetParent's scroll position, not if the element is fixed

)

};

if(!this.originalPosition) return position; //If we are not dragging yet, we won't check for options

/*

• - Position constraining -
• Constrain the position to a mix of grid, containment.

*/

if(this.containment) {

if(position.left < this.containment[0]) position.left = this.containment[0];

if(position.top < this.containment[1]) position.top = this.containment[1];

if(position.left > this.containment[2]) position.left = this.containment[2];

if(position.top > this.containment[3]) position.top = this.containment[3];

}

if(o.grid) {

var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1];

position.top = this.containment ? (!(top < this.containment[1] || top > this.containment[3]) ? top : (!(top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;

var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0];

position.left = this.containment ? (!(left < this.containment[0] || left > this.containment[2]) ? left : (!(left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;

}

return position;

},

drag: function(e) {

Compute the helpers position

this.position = this.generatePosition(e);

this.positionAbs = this.convertPositionTo("absolute");

Call plugins and callbacks and use the resulting position if something is returned

this.position = this.propagate("drag", e) || this.position;

if(!this.options.axis || this.options.axis == "x") this.helper[0].style.left = this.position.left+'px';

if(!this.options.axis || this.options.axis == "y") this.helper[0].style.top = this.position.top+'px';

if($.ui.ddmanager) $.ui.ddmanager.drag(this, e);

return false;

},

stop: function(e) {

If we are using droppables, inform the manager about the drop

if ($.ui.ddmanager && !this.options.dropBehaviour)

$.ui.ddmanager.drop(this, e);

if(this.options.revert) {

var self = this;

$(this.helper).animate(this.originalPosition, parseInt(this.options.revert, 10) || 500, function() {

self.propagate("stop", e);

self.clear();

});

} else {

this.propagate("stop", e);

this.clear();

}

return false;

},

clear: function() {

if(this.options.helper != 'original' && !this.cancelHelperRemoval) this.helper.remove();

if($.ui.ddmanager) $.ui.ddmanager.current = null;

this.helper = null;

this.cancelHelperRemoval = false;

},

From now on bulk stuff - mainly helpers

plugins: {},

ui: function(e) {

return {

helper: this.helper,

position: this.position,

absolutePosition: this.positionAbs,

options: this.options

};

},

propagate: function(n,e) {

$.ui.plugin.call(this, n, [e, this.ui()]);

return this.element.triggerHandler(n == "drag" ? n : "drag"+n, [e, this.ui()], this.options[n]);

},

destroy: function() {

if(!this.element.data('draggable')) return;

this.element.removeData("draggable").unbind(".draggable").mouse("destroy");

},

enable: function() {

this.options.disabled = false;

},

disable: function() {

this.options.disabled = true;

}

});

$.ui.draggable.defaults = {

helper: "original",

appendTo: "parent",

cancel: ['input','textarea','button','select','option'],

distance: 1,

delay: 0

};

$.ui.plugin.add("draggable", "cursor", {

start: function(e, ui) {

var t = $('body');

if (t.css("cursor")) ui.options._cursor = t.css("cursor");

t.css("cursor", ui.options.cursor);

},

stop: function(e, ui) {

if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);

}

});

$.ui.plugin.add("draggable", "zIndex", {

start: function(e, ui) {

var t = $(ui.helper);

if(t.css("zIndex")) ui.options._zIndex = t.css("zIndex");

t.css('zIndex', ui.options.zIndex);

},

stop: function(e, ui) {

if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);

}

});

$.ui.plugin.add("draggable", "opacity", {

start: function(e, ui) {

var t = $(ui.helper);

if(t.css("opacity")) ui.options._opacity = t.css("opacity");

t.css('opacity', ui.options.opacity);

},

stop: function(e, ui) {

if(ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);

}

});

$.ui.plugin.add("draggable", "iframeFix", {

start: function(e, ui) {

$(ui.options.iframeFix === true ? "iframe" : ui.options.iframeFix).each(function() {

$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>')

.css({

width: this.offsetWidth+"px", height: this.offsetHeight+"px",

position: "absolute", opacity: "0.001", zIndex: 1000

})

.css($(this).offset())

.appendTo("body");

});

},

stop: function(e, ui) {

$("div.DragDropIframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers

}

});

$.ui.plugin.add("draggable", "scroll", {

start: function(e, ui) {

var o = ui.options;

var i = $(this).data("draggable");

o.scrollSensitivity = o.scrollSensitivity || 20;

o.scrollSpeed = o.scrollSpeed || 20;

i.overflowY = function(el) {

do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode);

return $(document);

}(this);

i.overflowX = function(el) {

do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode);

return $(document);

}(this);

if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') i.overflowYOffset = i.overflowY.offset();

if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') i.overflowXOffset = i.overflowX.offset();

},

drag: function(e, ui) {

var o = ui.options;

var i = $(this).data("draggable");

if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {

if((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - e.pageY < o.scrollSensitivity)

i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;

if(e.pageY - i.overflowYOffset.top < o.scrollSensitivity)

i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;

} else {

if(e.pageY - $(document).scrollTop() < o.scrollSensitivity)

$(document).scrollTop($(document).scrollTop() - o.scrollSpeed);

if($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity)

$(document).scrollTop($(document).scrollTop() + o.scrollSpeed);

}

if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') {

if((i.overflowXOffset.left + i.overflowX[0].offsetWidth) - e.pageX < o.scrollSensitivity)

i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed;

if(e.pageX - i.overflowXOffset.left < o.scrollSensitivity)

i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed;

} else {

if(e.pageX - $(document).scrollLeft() < o.scrollSensitivity)

$(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);

if($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity)

$(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);

}

}

});

$.ui.plugin.add("draggable", "snap", {

start: function(e, ui) {

var inst = $(this).data("draggable");

inst.snapElements = [];

$(ui.options.snap === true ? '.ui-draggable' : ui.options.snap).each(function() {

var $t = $(this); var $o = $t.offset();

if(this != inst.element[0]) inst.snapElements.push({

item: this,

width: $t.outerWidth(), height: $t.outerHeight(),

top: $o.top, left: $o.left

});

});

},

drag: function(e, ui) {

var inst = $(this).data("draggable");

var d = ui.options.snapTolerance || 20;

var x1 = ui.absolutePosition.left, x2 = x1 + inst.helperProportions.width,

y1 = ui.absolutePosition.top, y2 = y1 + inst.helperProportions.height;

for (var i = inst.snapElements.length - 1; i >= 0; i--){

var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width,

t = inst.snapElements[i].top, b = t + inst.snapElements[i].height;

Yes, I know, this is insane ;)

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))) continue;

if(ui.options.snapMode != 'inner') {

var ts = Math.abs(t - y2) <= 20;

var bs = Math.abs(b - y1) <= 20;

var ls = Math.abs(l - x2) <= 20;

var rs = Math.abs(r - x1) <= 20;

if(ts) ui.position.top = inst.convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top;

if(bs) ui.position.top = inst.convertPositionTo("relative", { top: b, left: 0 }).top;

if(ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left;

if(rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r }).left;

}

if(ui.options.snapMode != 'outer') {

var ts = Math.abs(t - y1) <= 20;

var bs = Math.abs(b - y2) <= 20;

var ls = Math.abs(l - x1) <= 20;

var rs = Math.abs(r - x2) <= 20;

if(ts) ui.position.top = inst.convertPositionTo("relative", { top: t, left: 0 }).top;

if(bs) ui.position.top = inst.convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top;

if(ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l }).left;

if(rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left;

}

};

}

});

$.ui.plugin.add("draggable", "connectToSortable", {

start: function(e,ui) {

var inst = $(this).data("draggable");

inst.sortable = $.data($(ui.options.connectToSortable)[0], 'sortable');

inst.sortableOffset = inst.sortable.element.offset();

inst.sortableOuterWidth = inst.sortable.element.outerWidth();

inst.sortableOuterHeight = inst.sortable.element.outerHeight();

if(inst.sortable.options.revert) inst.sortable.shouldRevert = true;

},

stop: function(e,ui) {

If we are still over the sortable, we fake the stop event of the sortable, but also remove helper

var instDraggable = $(this).data("draggable");

var inst = instDraggable.sortable;

if(inst.isOver) {

inst.isOver = 0;

instDraggable.cancelHelperRemoval = true; Don't remove the helper in the draggable instance

inst.cancelHelperRemoval = false; Remove it in the sortable instance (so sortable plugins like revert still work)

if(inst.shouldRevert) inst.options.revert = true; revert here

inst.stop(e);

inst.options.helper = "original";

}

},

drag: function(e,ui) {

This is handy: We reuse the intersectsWith method for checking if the current draggable helper

intersects with the sortable container

var instDraggable = $(this).data("draggable");

var inst = instDraggable.sortable;

instDraggable.position.absolute = ui.absolutePosition; Sorry, this is an ugly API fix

if(inst.intersectsWith.call(instDraggable, {

left: instDraggable.sortableOffset.left, top: instDraggable.sortableOffset.top,

width: instDraggable.sortableOuterWidth, height: instDraggable.sortableOuterHeight

})) {

If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once

if(!inst.isOver) {

inst.isOver = 1;

Cache the width/height of the new helper

var height = inst.options.placeholderElement ? $(inst.options.placeholderElement, $(inst.options.items, inst.element)).innerHeight() : $(inst.options.items, inst.element).innerHeight();

var width = inst.options.placeholderElement ? $(inst.options.placeholderElement, $(inst.options.items, inst.element)).innerWidth() : $(inst.options.items, inst.element).innerWidth();

Now we fake the start of dragging for the sortable instance,

by cloning the list group item, appending it to the sortable and using it as inst.currentItem

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)

inst.currentItem = $(this).clone().appendTo(inst.element);

inst.options.helper = function() { return ui.helper[0]; };

inst.start(e);

Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes

inst.clickOffset.top = instDraggable.offset.click.top;

inst.clickOffset.left = instDraggable.offset.click.left;

inst.offset.left -= ui.absolutePosition.left - inst.position.absolute.left;

inst.offset.top -= ui.absolutePosition.top - inst.position.absolute.top;

Do a nifty little helper animation: Animate it to the portlet's size (just takes the first 'li' element in the sortable now)

inst.helperProportions = {width: width, height: height}; We have to reset the helper proportions, because we are doing our animation there

ui.helper.animate({height: height, width: width}, 500);

instDraggable.propagate("toSortable", e);

}

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

if(inst.currentItem) inst.drag(e);

} else {

If it doesn't intersect with the sortable, and it intersected before,

we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval

if(inst.isOver) {

inst.isOver = 0;

inst.cancelHelperRemoval = true;

inst.options.revert = false; No revert here

inst.stop(e);

inst.options.helper = "original";

//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size

inst.currentItem.remove();

inst.placeholder.remove();

ui.helper.animate({ height: this.innerHeight(), width: this.innerWidth() }, 500);

instDraggable.propagate("fromSortable", e);

}

};

}

});

$.ui.plugin.add("draggable", "stack", {

start: function(e,ui) {

var group = $.makeArray($(ui.options.stack.group)).sort(function(a,b) {

return (parseInt($(a).css("zIndex")) || ui.options.stack.min) - (parseInt($(b).css("zIndex")) || ui.options.stack.min);

});

$(group).each(function(i) {

this.style.zIndex = ui.options.stack.min + i;

});

this[0].style.zIndex = ui.options.stack.min + group.length;

}

});

})(jQuery);/*

• jQuery UI Droppable

*

• Copyright (c) 2008 Paul Bakaus
• Dual licensed under the MIT (MIT-LICENSE.txt)
• and GPL (GPL-LICENSE.txt) licenses.
*
• http://docs.jquery.com/UI/Droppables

*

• Depends:

* ui.core.js

* ui.draggable.js

*

• Revision: $Id: ui.droppable.js 5433 2008-05-04 20:07:17Z joern.zaefferer $

*/

;(function($) {

$.widget("ui.droppable", {

init: function() {

this.element.addClass("ui-droppable");

this.isover = 0; this.isout = 1;

Prepare the passed options

var o = this.options, accept = o.accept;

o = $.extend(o, {

accept: o.accept && o.accept.constructor == Function ? o.accept : function(d) {

return $(d).is(accept);

}

});

Store the droppable's proportions

this.proportions = { width: this.element.outerWidth(), height: this.element.outerHeight() };

Add the reference and positions to the manager

$.ui.ddmanager.droppables.push(this);

},

plugins: {},

ui: function(c) {

return {

instance: this,

draggable: (c.currentItem || c.element),

helper: c.helper,

position: c.position,

absolutePosition: c.positionAbs,

options: this.options,

element: this.element

};

},

destroy: function() {

var drop = $.ui.ddmanager.droppables;

for ( var i = 0; i < drop.length; i++ )

if ( drop[i] == this )

drop.splice(i, 1);

this.element

.removeClass("ui-droppable ui-droppable-disabled")

.removeData("droppable")

.unbind(".droppable");

},

enable: function() {

this.element.removeClass("ui-droppable-disabled");

this.options.disabled = false;

},

disable: function() {

this.element.addClass("ui-droppable-disabled");

this.options.disabled = true;

},

over: function(e) {

var draggable = $.ui.ddmanager.current;

if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; Bail if draggable and droppable are same element

if (this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {

$.ui.plugin.call(this, 'over', [e, this.ui(draggable)]);

this.element.triggerHandler("dropover", [e, this.ui(draggable)], this.options.over);

}

},

out: function(e) {

var draggable = $.ui.ddmanager.current;

if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; Bail if draggable and droppable are same element

if (this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {

$.ui.plugin.call(this, 'out', [e, this.ui(draggable)]);

this.element.triggerHandler("dropout", [e, this.ui(draggable)], this.options.out);

}

},

drop: function(e,custom) {

var draggable = custom || $.ui.ddmanager.current;

if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return false; Bail if draggable and droppable are same element

var childrenIntersection = false;

this.element.find(".ui-droppable").each(function() {

var inst = $.data(this, 'droppable');

if(inst.options.greedy && $.ui.intersect(draggable, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance)) {

childrenIntersection = true; return false;

}

});

if(childrenIntersection) return false;

if(this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {

$.ui.plugin.call(this, 'drop', [e, this.ui(draggable)]);

this.element.triggerHandler("drop", [e, this.ui(draggable)], this.options.drop);

return true;

}

return false;

},

activate: function(e) {

var draggable = $.ui.ddmanager.current;

$.ui.plugin.call(this, 'activate', [e, this.ui(draggable)]);

if(draggable) this.element.triggerHandler("dropactivate", [e, this.ui(draggable)], this.options.activate);

},

deactivate: function(e) {

var draggable = $.ui.ddmanager.current;

$.ui.plugin.call(this, 'deactivate', [e, this.ui(draggable)]);

if(draggable) this.element.triggerHandler("dropdeactivate", [e, this.ui(draggable)], this.options.deactivate);

}

});

$.extend($.ui.droppable, {

defaults: {

disabled: false,

tolerance: 'intersect'

}

});

$.ui.intersect = function(draggable, droppable, toleranceMode) {

if (!droppable.offset) return false;

var x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width,

y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height;

var l = droppable.offset.left, r = l + droppable.proportions.width,

t = droppable.offset.top, b = t + droppable.proportions.height;

switch (toleranceMode) {

case 'fit':

if(!((y2-(draggable.helperProportions.height/2) > t && y1 < t) || (y1 < b && y2 > b) || (x2 > l && x1 < l) || (x1 < r && x2 > r))) return false;

if(y2-(draggable.helperProportions.height/2) > t && y1 < t) return 1; Crosses top edge

if(y1 < b && y2 > b) return 2; Crosses bottom edge

if(x2 > l && x1 < l) return 1; Crosses left edge

if(x1 < r && x2 > r) return 2; Crosses right edge

return (l < x1 && x2 < r

&& t < y1 && y2 < b);

break;

case 'intersect':

return (l < x1 + (draggable.helperProportions.width / 2) // Right Half

&& x2 - (draggable.helperProportions.width / 2) < r // Left Half

&& t < y1 + (draggable.helperProportions.height / 2) // Bottom Half

&& y2 - (draggable.helperProportions.height / 2) < b ); Top Half

break;

case 'pointer':

return (l < ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left) && ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left) < r

&& t < ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top) && ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top) < b);

break;

case 'touch':

return (

(y1 >= t && y1 <= b) || Top edge touching

(y2 >= t && y2 <= b) || Bottom edge touching

(y1 < t && y2 > b) Surrounded vertically

) && (

(x1 >= l && x1 <= r) || Left edge touching

(x2 >= l && x2 <= r) || Right edge touching

(x1 < l && x2 > r) // Surrounded horizontally

);

break;

default:

return false;

break;

}

};

/*

This manager tracks offsets of draggables and droppables

*/

$.ui.ddmanager = {

current: null,

droppables: [],

prepareOffsets: function(t, e) {

var m = $.ui.ddmanager.droppables;

var type = e ? e.type : null; workaround for #2317

for (var i = 0; i < m.length; i++) {

if(m[i].options.disabled || (t && !m[i].options.accept.call(m[i].element,(t.currentItem || t.element)))) continue;

m[i].visible = m[i].element.is(":visible"); if(!m[i].visible) continue; If the element is not visible, continue

m[i].offset = m[i].element.offset();

m[i].proportions = { width: m[i].element.outerWidth(), height: m[i].element.outerHeight() };

if(type == "dragstart" || type == "sortactivate") m[i].activate.call(m[i], e); Activate the droppable if used directly from draggables

}

},

drop: function(draggable, e) {

var dropped = false;

$.each($.ui.ddmanager.droppables, function() {

if(!this.options) return;

if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance))

dropped = this.drop.call(this, e);

if (!this.options.disabled && this.visible && this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {

this.isout = 1; this.isover = 0;

this.deactivate.call(this, e);

}

});

return dropped;

},

drag: function(draggable, e) {

If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse.

if(draggable.options.refreshPositions) $.ui.ddmanager.prepareOffsets(draggable, e);

Run through all droppables and check their positions based on specific tolerance options

$.each($.ui.ddmanager.droppables, function() {

if(this.disabled || this.greedyChild || !this.visible) return;

var intersects = $.ui.intersect(draggable, this, this.options.tolerance);

var c = !intersects && this.isover == 1 ? 'isout' : (intersects && this.isover == 0 ? 'isover' : null);

if(!c) return;

var parentInstance;

if (this.options.greedy) {

var parent = this.element.parents('.ui-droppable:eq(0)');

if (parent.length) {

parentInstance = $.data(parent[0], 'droppable');

parentInstance.greedyChild = (c == 'isover' ? 1 : 0);

}

}

we just moved into a greedy child

if (parentInstance && c == 'isover') {

parentInstance['isover'] = 0;

parentInstance['isout'] = 1;

parentInstance.out.call(parentInstance, e);

}

this[c] = 1; this[c == 'isout' ? 'isover' : 'isout'] = 0;

this[c == "isover" ? "over" : "out"].call(this, e);

// we just moved out of a greedy child

if (parentInstance && c == 'isout') {

parentInstance['isout'] = 0;

parentInstance['isover'] = 1;

parentInstance.over.call(parentInstance, e);

}

});

}

};

/*

• Droppable Extensions

*/

$.ui.plugin.add("droppable", "activeClass", {

activate: function(e, ui) {

$(this).addClass(ui.options.activeClass);

},

deactivate: function(e, ui) {

$(this).removeClass(ui.options.activeClass);

},

drop: function(e, ui) {

$(this).removeClass(ui.options.activeClass);

}

});

$.ui.plugin.add("droppable", "hoverClass", {

over: function(e, ui) {

$(this).addClass(ui.options.hoverClass);

},

out: function(e, ui) {

$(this).removeClass(ui.options.hoverClass);

},

drop: function(e, ui) {

$(this).removeClass(ui.options.hoverClass);

}

});

})(jQuery);

/*

• jQuery UI Resizable

*

• Copyright (c) 2008 Paul Bakaus
• Dual licensed under the MIT (MIT-LICENSE.txt)
• and GPL (GPL-LICENSE.txt) licenses.
*
• http://docs.jquery.com/UI/Resizables

*

• Depends:

* ui.core.js

*

• Revision: $Id: ui.resizable.js 5649 2008-05-21 03:06:36Z braeker $

*/

;(function($) {

$.widget("ui.resizable", {

init: function() {

var self = this, o = this.options;

var elpos = this.element.css('position');

// simulate .ui-resizable { position: relative; }

this.element.addClass("ui-resizable").css({ position: /static/.test(elpos) ? 'relative' : elpos });

$.extend(o, {

_aspectRatio: !!(o.aspectRatio),

proxy: o.proxy || o.ghost || o.animate ? 'proxy' : null,

knobHandles: o.knobHandles === true ? 'ui-resizable-knob-handle' : o.knobHandles

});

Default Theme

var aBorder = '1px solid #DEDEDE';

o.defaultTheme = {

'ui-resizable': { display: 'block' },

'ui-resizable-handle': { position: 'absolute', background: '#F2F2F2', fontSize: '0.1px' },

'ui-resizable-n': { cursor: 'n-resize', height: '4px', left: '0px', right: '0px', borderTop: aBorder },

'ui-resizable-s': { cursor: 's-resize', height: '4px', left: '0px', right: '0px', borderBottom: aBorder },

'ui-resizable-e': { cursor: 'e-resize', width: '4px', top: '0px', bottom: '0px', borderRight: aBorder },

'ui-resizable-w': { cursor: 'w-resize', width: '4px', top: '0px', bottom: '0px', borderLeft: aBorder },

'ui-resizable-se': { cursor: 'se-resize', width: '4px', height: '4px', borderRight: aBorder, borderBottom: aBorder },

'ui-resizable-sw': { cursor: 'sw-resize', width: '4px', height: '4px', borderBottom: aBorder, borderLeft: aBorder },

'ui-resizable-ne': { cursor: 'ne-resize', width: '4px', height: '4px', borderRight: aBorder, borderTop: aBorder },

'ui-resizable-nw': { cursor: 'nw-resize', width: '4px', height: '4px', borderLeft: aBorder, borderTop: aBorder }

};

o.knobTheme = {

'ui-resizable-handle': { background: '#F2F2F2', border: '1px solid #808080', height: '8px', width: '8px' },

'ui-resizable-n': { cursor: 'n-resize', top: '0px', left: '45%' },

'ui-resizable-s': { cursor: 's-resize', bottom: '0px', left: '45%' },

'ui-resizable-e': { cursor: 'e-resize', right: '0px', top: '45%' },

'ui-resizable-w': { cursor: 'w-resize', left: '0px', top: '45%' },

'ui-resizable-se': { cursor: 'se-resize', right: '0px', bottom: '0px' },

'ui-resizable-sw': { cursor: 'sw-resize', left: '0px', bottom: '0px' },

'ui-resizable-nw': { cursor: 'nw-resize', left: '0px', top: '0px' },

'ui-resizable-ne': { cursor: 'ne-resize', right: '0px', top: '0px' }

};

o._nodeName = this.element[0].nodeName;

Wrap the element if it cannot hold child nodes

if(o._nodeName.match(/canvas|textarea|input|select|button|img/i)) {

var el = this.element;

//Opera fixing relative position

if (/relative/.test(el.css('position')) && $.browser.opera)

el.css({ position: 'relative', top: 'auto', left: 'auto' });

//Create a wrapper element and set the wrapper to the new current internal element

el.wrap(

$('<div class="ui-wrapper" style="overflow: hidden;"></div>').css( {

position: el.css('position'),

width: el.outerWidth(),

height: el.outerHeight(),

top: el.css('top'),

left: el.css('left')

})

);

var oel = this.element; this.element = this.element.parent();

Move margins to the wrapper

this.element.css({ marginLeft: oel.css("marginLeft"), marginTop: oel.css("marginTop"),

marginRight: oel.css("marginRight"), marginBottom: oel.css("marginBottom")

});

oel.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});

Prevent Safari textarea resize

if ($.browser.safari && o.preventDefault) oel.css('resize', 'none');

o.proportionallyResize = oel.css({ position: 'static', zoom: 1, display: 'block' });

avoid IE jump

this.element.css({ margin: oel.css('margin') });

fix handlers offset

this._proportionallyResize();

}

if(!o.handles) o.handles = !$('.ui-resizable-handle', this.element).length ? "e,s,se" : { n: '.ui-resizable-n', e: '.ui-resizable-e', s: '.ui-resizable-s', w: '.ui-resizable-w', se: '.ui-resizable-se', sw: '.ui-resizable-sw', ne: '.ui-resizable-ne', nw: '.ui-resizable-nw' };

if(o.handles.constructor == String) {

o.zIndex = o.zIndex || 1000;

if(o.handles == 'all') o.handles = 'n,e,s,w,se,sw,ne,nw';

var n = o.handles.split(","); o.handles = {};

insertions are applied when don't have theme loaded

var insertionsDefault = {

handle: 'position: absolute; display: none; overflow:hidden;',

n: 'top: 0pt; width:100%;',

e: 'right: 0pt; height:100%;',

s: 'bottom: 0pt; width:100%;',

w: 'left: 0pt; height:100%;',

se: 'bottom: 0pt; right: 0px;',

sw: 'bottom: 0pt; left: 0px;',

ne: 'top: 0pt; right: 0px;',

nw: 'top: 0pt; left: 0px;'

};

for(var i = 0; i < n.length; i++) {

var handle = $.trim(n[i]), dt = o.defaultTheme, hname = 'ui-resizable-'+handle, loadDefault = !$.ui.css(hname) && !o.knobHandles, userKnobClass = $.ui.css('ui-resizable-knob-handle'),

allDefTheme = $.extend(dt[hname], dt['ui-resizable-handle']), allKnobTheme = $.extend(o.knobTheme[hname], !userKnobClass ? o.knobTheme['ui-resizable-handle'] : {});

increase zIndex of sw, se, ne, nw axis

var applyZIndex = /sw|se|ne|nw/.test(handle) ? { zIndex: ++o.zIndex } : {};

var defCss = (loadDefault ? insertionsDefault[handle] : ''),

axis = $(['<div class="ui-resizable-handle ', hname, '" style="', defCss, insertionsDefault.handle, '"></div>'].join('')).css( applyZIndex );

o.handles[handle] = '.ui-resizable-'+handle;

this.element.append(

Theme detection, if not loaded, load o.defaultTheme

axis.css( loadDefault ? allDefTheme : {} )

Load the knobHandle css, fix width, height, top, left...

.css( o.knobHandles ? allKnobTheme : {} ).addClass(o.knobHandles ? 'ui-resizable-knob-handle' : '').addClass(o.knobHandles)

);

}

if (o.knobHandles) this.element.addClass('ui-resizable-knob').css( !$.ui.css('ui-resizable-knob') ? { /*border: '1px #fff dashed'*/ } : {} );

}

this._renderAxis = function(target) {

target = target || this.element;

for(var i in o.handles) {

if(o.handles[i].constructor == String)

o.handles[i] = $(o.handles[i], this.element).show();

if (o.transparent)

o.handles[i].css({opacity:0});

//Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)

if (this.element.is('.ui-wrapper') &&

o._nodeName.match(/textarea|input|select|button/i)) {

var axis = $(o.handles[i], this.element), padWrapper = 0;

//Checking the correct pad and border

padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();

//The padding type i have to apply...

var padPos = [ 'padding',

/ne|nw|n/.test(i) ? 'Top' :

/se|sw|s/.test(i) ? 'Bottom' :

/^e$/.test(i) ? 'Right' : 'Left' ].join("");

if (!o.transparent)

target.css(padPos, padWrapper);

this._proportionallyResize();

}

if(!$(o.handles[i]).length) continue;

}

};

this._renderAxis(this.element);

o._handles = $('.ui-resizable-handle', self.element);

if (o.disableSelection)

o._handles.each(function(i, e) { $.ui.disableSelection(e); });

//Matching axis name

o._handles.mouseover(function() {

if (!o.resizing) {

if (this.className)

var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);

Axis, default = se

self.axis = o.axis = axis && axis[1] ? axis[1] : 'se';

}

});

If we want to auto hide the elements

if (o.autohide) {

o._handles.hide();

$(self.element).addClass("ui-resizable-autohide").hover(function() {

$(this).removeClass("ui-resizable-autohide");

o._handles.show();

},

function(){

if (!o.resizing) {

$(this).addClass("ui-resizable-autohide");

o._handles.hide();

}

});

}

Initialize mouse events for interaction

this.element.mouse({

executor: this,

delay: 0,

distance: 0,

dragPrevention: ['input','textarea','button','select','option'],

start: this.start,

stop: this.stop,

drag: this.drag,

condition: function(e) {

if(this.disabled) return false;

for(var i in this.options.handles) {

if($(this.options.handles[i])[0] == e.target) return true;

}

return false;

}

});

},

plugins: {},

ui: function() {

return {

instance: this,

axis: this.options.axis,

options: this.options

};

},

propagate: function(n,e) {

$.ui.plugin.call(this, n, [e, this.ui()]);

this.element.triggerHandler(n == "resize" ? n : ["resize", n].join(""), [e, this.ui()], this.options[n]);

},

destroy: function() {

var el = this.element, wrapped = el.children(".ui-resizable").get(0),

_destroy = function(exp) {

$(exp).removeClass("ui-resizable ui-resizable-disabled")

.mouse("destroy").removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();

};

_destroy(el);

if (el.is('.ui-wrapper') && wrapped) {

el.parent().append(

$(wrapped).css({

position: el.css('position'),

width: el.outerWidth(),

height: el.outerHeight(),

top: el.css('top'),

left: el.css('left')

})

).end().remove();

_destroy(wrapped);

}

},

enable: function() {

this.element.removeClass("ui-resizable-disabled");

this.disabled = false;

},

disable: function() {

this.element.addClass("ui-resizable-disabled");

this.disabled = true;

},

start: function(e) {

var o = this.options, iniPos = this.element.position(), el = this.element,

num = function(v) { return parseInt(v, 10) || 0; }, ie6 = $.browser.msie && $.browser.version < 7;

o.resizing = true;

o.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };

bugfix #1749

if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {

// sOffset decides if document scrollOffset will be added to the top/left of the resizable element

var sOffset = $.browser.msie && !o.containment && (/absolute/).test(el.css('position')) && !(/relative/).test(el.parent().css('position'));

var dscrollt = sOffset ? o.documentScroll.top : 0, dscrolll = sOffset ? o.documentScroll.left : 0;

el.css({ position: 'absolute', top: (iniPos.top + dscrollt), left: (iniPos.left + dscrolll) });

}

//Opera fixing relative position

if (/relative/.test(el.css('position')) && $.browser.opera)

el.css({ position: 'relative', top: 'auto', left: 'auto' });

this._renderProxy();

var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));

Store needed variables

this.offset = this.helper.offset();

this.position = { left: curleft, top: curtop };

this.size = o.proxy || ie6 ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };

this.originalSize = o.proxy || ie6 ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };

this.originalPosition = { left: curleft, top: curtop };

this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };

this.originalMousePosition = { left: e.pageX, top: e.pageY };

Aspect Ratio

o.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.height / this.originalSize.width)||1);

if (o.preserveCursor)

$('body').css('cursor', this.axis + '-resize');

this.propagate("start", e);

return false;

},

stop: function(e) {

this.options.resizing = false;

var o = this.options, num = function(v) { return parseInt(v, 10) || 0; }, self = this;

if(o.proxy) {

var pr = o.proportionallyResize, ista = pr && (/textarea/i).test(pr.get(0).nodeName),

soffseth = ista && $.ui.hasScroll(pr.get(0), 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,

soffsetw = ista ? 0 : self.sizeDiff.width;

var s = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },

left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,

top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;

if (!o.animate)

this.element.css($.extend(s, { top: top, left: left }));

if (o.proxy && !o.animate) this._proportionallyResize();

this.helper.remove();

}

if (o.preserveCursor)

$('body').css('cursor', 'auto');

this.propagate("stop", e);

return false;

},

drag: function(e) {

Increase performance, avoid regex

var el = this.helper, o = this.options, props = {},

self = this, smp = this.originalMousePosition, a = this.axis;

var dx = (e.pageX-smp.left)||0, dy = (e.pageY-smp.top)||0;

var trigger = this._change[a];

if (!trigger) return false;

Calculate the attrs that will be change

var data = trigger.apply(this, [e, dx, dy]), ie6 = $.browser.msie && $.browser.version < 7, csdif = this.sizeDiff;

if (o._aspectRatio || e.shiftKey)

data = this._updateRatio(data, e);

data = this._respectSize(data, e);

this.propagate("resize", e);

el.css({

top: this.position.top + "px", left: this.position.left + "px",

width: this.size.width + "px", height: this.size.height + "px"

});

if (!o.proxy && o.proportionallyResize)

this._proportionallyResize();

this._updateCache(data);

return false;

},

_updateCache: function(data) {

var o = this.options;

this.offset = this.helper.offset();

if (data.left) this.position.left = data.left;

if (data.top) this.position.top = data.top;

if (data.height) this.size.height = data.height;

if (data.width) this.size.width = data.width;

},

_updateRatio: function(data, e) {

var o = this.options, cpos = this.position, csize = this.size, a = this.axis;

if (data.height) data.width = (csize.height / o.aspectRatio);

else if (data.width) data.height = (csize.width * o.aspectRatio);

if (a == 'sw') {

data.left = cpos.left + (csize.width - data.width);

data.top = null;

}

if (a == 'nw') {

data.top = cpos.top + (csize.height - data.height);

data.left = cpos.left + (csize.width - data.width);

}

return data;

},

_respectSize: function(data, e) {

var el = this.helper, o = this.options, pRatio = o._aspectRatio || e.shiftKey, a = this.axis,

ismaxw = data.width && o.maxWidth && o.maxWidth < data.width, ismaxh = data.height && o.maxHeight && o.maxHeight < data.height,

isminw = data.width && o.minWidth && o.minWidth > data.width, isminh = data.height && o.minHeight && o.minHeight > data.height;

if (isminw) data.width = o.minWidth;

if (isminh) data.height = o.minHeight;

if (ismaxw) data.width = o.maxWidth;

if (ismaxh) data.height = o.maxHeight;

var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;

var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);

if (isminw && cw) data.left = dw - o.minWidth;

if (ismaxw && cw) data.left = dw - o.maxWidth;

if (isminh && ch) data.top = dh - o.minHeight;

if (ismaxh && ch) data.top = dh - o.maxHeight;

// fixing jump error on top/left - bug #2330

var isNotwh = !data.width && !data.height;

if (isNotwh && !data.left && data.top) data.top = null;

else if (isNotwh && !data.top && data.left) data.left = null;

return data;

},

_proportionallyResize: function() {

var o = this.options;

if (!o.proportionallyResize) return;

var prel = o.proportionallyResize, el = this.helper || this.element;

if (!o.borderDif) {

var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],

p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];

o.borderDif = $.map(b, function(v, i) {

var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;

return border + padding;

});

}

prel.css({

height: (el.height() - o.borderDif[0] - o.borderDif[2]) + "px",

width: (el.width() - o.borderDif[1] - o.borderDif[3]) + "px"

});

},

_renderProxy: function() {

var el = this.element, o = this.options;

this.elementOffset = el.offset();

if(o.proxy) {

this.helper = this.helper || $('<div style="overflow:hidden;"></div>');

// fix ie6 offset

var ie6 = $.browser.msie && $.browser.version < 7, ie6offset = (ie6 ? 1 : 0),

pxyoffset = ( ie6 ? 2 : -1 );

this.helper.addClass(o.proxy).css({

width: el.outerWidth() + pxyoffset,

height: el.outerHeight() + pxyoffset,

position: 'absolute',

left: this.elementOffset.left - ie6offset +'px',

top: this.elementOffset.top - ie6offset +'px',

zIndex: ++o.zIndex

});

this.helper.appendTo("body");

if (o.disableSelection)

$.ui.disableSelection(this.helper.get(0));

} else {

this.helper = el;

}

},

_change: {

e: function(e, dx, dy) {

return { width: this.originalSize.width + dx };

},

w: function(e, dx, dy) {

var o = this.options, cs = this.originalSize, sp = this.originalPosition;

return { left: sp.left + dx, width: cs.width - dx };

},

n: function(e, dx, dy) {

var o = this.options, cs = this.originalSize, sp = this.originalPosition;

return { top: sp.top + dy, height: cs.height - dy };

},

s: function(e, dx, dy) {

return { height: this.originalSize.height + dy };

},

se: function(e, dx, dy) {

return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [e, dx, dy]));

},

sw: function(e, dx, dy) {

return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [e, dx, dy]));

},

ne: function(e, dx, dy) {

return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [e, dx, dy]));

},

nw: function(e, dx, dy) {

return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [e, dx, dy]));

}

}

});

$.extend($.ui.resizable, {

defaults: {

preventDefault: true,

transparent: false,

minWidth: 10,

minHeight: 10,

aspectRatio: false,

disableSelection: true,

preserveCursor: true,

autohide: false,

knobHandles: false

}

});

/*

• Resizable Extensions

*/

$.ui.plugin.add("resizable", "containment", {

start: function(e, ui) {

var o = ui.options, self = ui.instance, el = self.element;

var oc = o.containment, ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;

if (!ce) return;

if (/document/.test(oc) || oc == document) {

self.containerOffset = { left: 0, top: 0 };

self.parentData = {

element: $(document), left: 0, top: 0, width: $(document).width(),

height: $(document).height() || document.body.parentNode.scrollHeight

};

}

// i'm a node, so compute top, left, right, bottom

else{

self.containerOffset = $(ce).offset();

self.containerSize = { height: $(ce).innerHeight(), width: $(ce).innerWidth() };

var co = self.containerOffset, ch = self.containerSize.height, cw = self.containerSize.width,

width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw ), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);

self.parentData = {

element: ce, left: co.left, top: co.top, width: width, height: height

};

}

},

resize: function(e, ui) {

var o = ui.options, self = ui.instance, ps = self.containerSize,

co = self.containerOffset, cs = self.size, cp = self.position,

pRatio = o._aspectRatio || e.shiftKey;

if (cp.left < (o.proxy ? co.left : 0)) {

self.size.width = self.size.width + (o.proxy ? (self.position.left - co.left) : self.position.left);

if (pRatio) self.size.height = self.size.width * o.aspectRatio;

self.position.left = o.proxy ? co.left : 0;

}

if (cp.top < (o.proxy ? co.top : 0)) {

self.size.height = self.size.height + (o.proxy ? (self.position.top - co.top) : self.position.top);

if (pRatio) self.size.width = self.size.height / o.aspectRatio;

self.position.top = o.proxy ? co.top : 0;

}

var woset = (o.proxy ? self.offset.left - co.left : self.position.left) + self.sizeDiff.width,

hoset = (o.proxy ? self.offset.top - co.top : self.position.top) + self.sizeDiff.height;

if (woset + self.size.width >= self.parentData.width) {

self.size.width = self.parentData.width - woset;

if (pRatio) self.size.height = self.size.width * o.aspectRatio;

}

if (hoset + self.size.height >= self.parentData.height) {

self.size.height = self.parentData.height - hoset;

if (pRatio) self.size.width = self.size.height / o.aspectRatio;

}

}

});

$.ui.plugin.add("resizable", "grid", {

resize: function(e, ui) {

var o = ui.options, self = ui.instance, cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || e.shiftKey;

o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;

var ox = Math.round((cs.width - os.width) / o.grid[0]) * o.grid[0], oy = Math.round((cs.height - os.height) / o.grid[1]) * o.grid[1];

if (/^(se|s|e)$/.test(a)) {

self.size.width = os.width + ox;

self.size.height = os.height + oy;

}

else if (/^(ne)$/.test(a)) {

self.size.width = os.width + ox;

self.size.height = os.height + oy;

self.position.top = op.top - oy;

}

else if (/^(sw)$/.test(a)) {

self.size.width = os.width + ox;

self.size.height = os.height + oy;

self.position.left = op.left - ox;

}

else {

self.size.width = os.width + ox;

self.size.height = os.height + oy;

self.position.top = op.top - oy;

self.position.left = op.left - ox;

}

}

});

$.ui.plugin.add("resizable", "animate", {

stop: function(e, ui) {

var o = ui.options, self = ui.instance;

var pr = o.proportionallyResize, ista = pr && (/textarea/i).test(pr.get(0).nodeName),

soffseth = ista && $.ui.hasScroll(pr.get(0), 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,

soffsetw = ista ? 0 : self.sizeDiff.width;

var style = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },

left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,

top = (parseInt(self.element.css('top'), 10)

That didn't work either.

The drag function starts at line 2519, where I think the error is, is in the if inside the for loop (lines 2529-2533), 10 lines down.

Please create a new ticket in the UI bug tracker. Thanks.