ui.resizable.js(原版，未做改动)

/*
* 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
*/
(function($) {

$.widget("ui.resizable", $.extend({}, $.ui.mouse, {
    init: function() {

        var self = this, o = this.options;

        var elpos = this.element.css('position');
        this.originalElement = this.element;
        // simulate .ui-resizable { position: relative; }
        this.element.addClass("ui-resizable").css({ position: /static/.test(elpos) ? 'relative' : elpos });
        $.extend(o, {
            _aspectRatio: !!(o.aspectRatio),
            helper: o.helper || o.ghost || o.animate ? o.helper || '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(
                $('<div class="ui-wrapper"    style="overflow: hidden;"></div>').css( {
                    position: el.css('position'),
                    width: el.outerWidth(),
                    height: el.outerHeight(),
                    top: el.css('top'),
                    left: el.css('left')
                })
            );
            var oel = this.element; this.element = this.element.parent();
            // store instance on wrapper
            this.element.data('resizable', this);
            //Move margins to the wrapper
            this.element.css({ marginLeft: oel.css("marginLeft"), marginTop: oel.css("marginTop"),
                marginRight: oel.css("marginRight"), marginBottom: oel.css("marginBottom")
            });
            oel.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
            //Prevent Safari textarea resize
            if ($.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();
                }
            });
        }
        this.mouseInit();
    },
    plugins: {},
    ui: function() {
        return {
            originalElement: this.originalElement,
            element: this.element,
            helper: this.helper,
            position: this.position,
            size: this.size,
            options: this.options,
            originalSize: this.originalSize,
            originalPosition: this.originalPosition
        };
    },
    propagate: function(n,e) {
        $.ui.plugin.call(this, n, [e, this.ui()]);
        if (n != "resize") this.element.triggerHandler(["resize", n].join(""), [e, this.ui()], this.options[n]);
    },
    destroy: function() {
        var el = this.element, wrapped = el.children(".ui-resizable").get(0);
        this.mouseDestroy();
        var _destroy = function(exp) {
            $(exp).removeClass("ui-resizable ui-resizable-disabled")
                .removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
        };
        _destroy(el);
        if (el.is('.ui-wrapper') && wrapped) {
            el.parent().append(
                $(wrapped).css({
                    position: el.css('position'),
                    width: el.outerWidth(),
                    height: el.outerHeight(),
                    top: el.css('top'),
                    left: el.css('left')
                })
            ).end().remove();
            _destroy(wrapped);
        }
    },
    mouseStart: function(e) {
        if(this.options.disabled) return false;
        var handle = false;
        for(var i in this.options.handles) {
            if($(this.options.handles[i])[0] == e.target) handle = true;
        }
        if (!handle) return false;
        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 = $.browser.msie && !o.containment && (/absolute/).test(el.css('position')) && !(/relative/).test(el.parent().css('position'));
            var dscrollt = sOffset ? o.documentScroll.top : 0, dscrolll = sOffset ? o.documentScroll.left : 0;
            el.css({ position: 'absolute', top: (iniPos.top + dscrollt), left: (iniPos.left + dscrolll) });
        }
        //Opera fixing relative position
        if ($.browser.opera && /relative/.test(el.css('position')))
            el.css({ position: 'relative', top: 'auto', left: 'auto' });
        this._renderProxy();
        var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));
        if (o.containment) {
            curleft += $(o.containment).scrollLeft()||0;
            curtop += $(o.containment).scrollTop()||0;
        }
        //Store needed variables
        this.offset = this.helper.offset();
        this.position = { left: curleft, top: curtop };
        this.size = o.helper || ie6 ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
        this.originalSize = o.helper || 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 true;
    },
    mouseDrag: 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);
        // plugins callbacks need to be called first
        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.helper && o.proportionallyResize)
            this._proportionallyResize();
        this._updateCache(data);
        // calling the user callback at the end
        this.element.triggerHandler("resize", [e, this.ui()], this.options["resize"]);
        return false;
    },
    mouseStop: function(e) {
        this.options.resizing = false;
        var o = this.options, num = function(v) { return parseInt(v, 10) || 0; }, self = this;
        if(o.helper) {
            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.helper && !o.animate) this._proportionallyResize();
        }
        if (o.preserveCursor)
            $('body').css('cursor', 'auto');
        this.propagate("stop", e);
        if (o.helper) this.helper.remove();
        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.helper) {
            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.helper).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: {
        cancel: ":input",
        distance: 1,
        delay: 0,
        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 = $(this).data("resizable"), el = self.element;
        var oc = o.containment,    ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
        if (!ce) return;
        self.containerElement = $(ce);
        if (/document/.test(oc) || oc == document) {
            self.containerOffset = { left: 0, top: 0 };
            self.containerPosition = { 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.containerPosition = $(ce).position();
            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 = $(this).data("resizable"),
                ps = self.containerSize, co = self.containerOffset, cs = self.size, cp = self.position,
                pRatio = o._aspectRatio || e.shiftKey, cop = { top:0, left:0 }, ce = self.containerElement;
        if (ce[0] != document && /static/.test(ce.css('position')))
            cop = self.containerPosition;
        if (cp.left < (o.helper ? co.left : cop.left)) {
            self.size.width = self.size.width + (o.helper ? (self.position.left - co.left) : (self.position.left - cop.left));
            if (pRatio) self.size.height = self.size.width * o.aspectRatio;
            self.position.left = o.helper ? co.left : cop.left;
        }
        if (cp.top < (o.helper ? co.top : 0)) {
            self.size.height = self.size.height + (o.helper ? (self.position.top - co.top) : self.position.top);
            if (pRatio) self.size.width = self.size.height / o.aspectRatio;
            self.position.top = o.helper ? co.top : 0;
        }
        var woset = (o.helper ? self.offset.left - co.left : (self.position.left - cop.left)) + self.sizeDiff.width,
                    hoset = (o.helper ? 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;
        }
    },
    stop: function(e, ui){
        var o = ui.options, self = $(this).data("resizable"), cp = self.position,
                co = self.containerOffset, cop = self.containerPosition, ce = self.containerElement;
        var helper = $(self.helper), ho = helper.offset(), w = helper.innerWidth(), h = helper.innerHeight();
        if (o.helper && !o.animate && /relative/.test(ce.css('position')))
            $(this).css({ left: (ho.left - co.left), top: (ho.top - co.top), width: w, height: h });
        if (o.helper && !o.animate && /static/.test(ce.css('position')))
            $(this).css({ left: cop.left + (ho.left - co.left), top: cop.top + (ho.top - co.top), width: w, height: h });
    }
});

$.ui.plugin.add("resizable", "grid", {
    resize: function(e, ui) {
        var o = ui.options, self = $(this).data("resizable"), cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || e.shiftKey;
        o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
        var ox = Math.round((cs.width - os.width) / (o.grid[0]||1)) * (o.grid[0]||1), oy = Math.round((cs.height - os.height) / (o.grid[1]||1)) * (o.grid[1]||1);
        if (/^(se|s|e)$/.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 = $(this).data("resizable");
        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) + (self.position.top - self.originalPosition.top)) || null;
        self.element.animate(
            $.extend(style, top && left ? { top: top, left: left } : {}), {
                duration: o.animateDuration || "slow", easing: o.animateEasing || "swing",
                step: function() {
                    var data = {
                        width: parseInt(self.element.css('width'), 10),
                        height: parseInt(self.element.css('height'), 10),
                        top: parseInt(self.element.css('top'), 10),
                        left: parseInt(self.element.css('left'), 10)
                    };
                    if (pr) pr.css({ width: data.width, height: data.height });
                    // propagating resize, and updating values for each animation step
                    self._updateCache(data);
                    self.propagate("animate", e);
                }
            }
        );
    }
});

$.ui.plugin.add("resizable", "ghost", {
    start: function(e, ui) {
        var o = ui.options, self = $(this).data("resizable"), pr = o.proportionallyResize, cs = self.size;
        if (!pr) self.ghost = self.element.clone();
        else self.ghost = pr.clone();
        self.ghost.css(
            { opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 }
        )
        .addClass('ui-resizable-ghost').addClass(typeof o.ghost == 'string' ? o.ghost : '');
        self.ghost.appendTo(self.helper);
    },
    resize: function(e, ui){
        var o = ui.options, self = $(this).data("resizable"), pr = o.proportionallyResize;
        if (self.ghost) self.ghost.css({ position: 'relative', height: self.size.height, width: self.size.width });
    },
    stop: function(e, ui){
        var o = ui.options, self = $(this).data("resizable"), pr = o.proportionallyResize;
        if (self.ghost && self.helper) self.helper.get(0).removeChild(self.ghost.get(0));
    }
});

$.ui.plugin.add("resizable", "alsoResize", {
    start: function(e, ui) {
        var o = ui.options, self = $(this).data("resizable"),
        _store = function(exp) {
            $(exp).each(function() {
                $(this).data("resizable-alsoresize", {
                    width: parseInt($(this).width(), 10), height: parseInt($(this).height(), 10),
                    left: parseInt($(this).css('left'), 10), top: parseInt($(this).css('top'), 10)
                });
            });
        };
        if (typeof(o.alsoResize) == 'object') {
            if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0];    _store(o.alsoResize); }
            else { $.each(o.alsoResize, function(exp, c) { _store(exp); }); }
        }else{
            _store(o.alsoResize);
        }
    },
    resize: function(e, ui){
        var o = ui.options, self = $(this).data("resizable"), os = self.originalSize, op = self.originalPosition;
        var delta = {
            height: (self.size.height - os.height) || 0, width: (self.size.width - os.width) || 0,
            top: (self.position.top - op.top) || 0, left: (self.position.left - op.left) || 0
        },
        _alsoResize = function(exp, c) {
            $(exp).each(function() {
                var start = $(this).data("resizable-alsoresize"), style = {}, css = c && c.length ? c : ['width', 'height', 'top', 'left'];
                $.each(css || ['width', 'height', 'top', 'left'], function(i, prop) {
                    var sum = (start[prop]||0) + (delta[prop]||0);
                    if (sum && sum >= 0)
                        style[prop] = sum || null;
                });
                $(this).css(style);
            });
        };
        if (typeof(o.alsoResize) == 'object') {
            $.each(o.alsoResize, function(exp, c) { _alsoResize(exp, c); });
        }else{
            _alsoResize(o.alsoResize);
        }
    },
    stop: function(e, ui){
        $(this).removeData("resizable-alsoresize-start");
    }
});

})(jQuery);