jquery-ui/ui/jquery.ui.resizable.js
Jo Liss 37dcc3e21d Protect all copyright notices against minification
For instance, this is useful for the jquery-ui-rails gem, which does not
use jQuery UI's own minification, but relies on Rails to minify the
files where necessary. Rails in turn uses UglifyJS for JS and YUI for
CSS, both of which respect the /*! ... */ convention.
2012-04-02 15:21:06 +02:00

806 lines
26 KiB
JavaScript

/*!
* jQuery UI Resizable @VERSION
*
* Copyright 2012, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Resizables
*
* Depends:
* jquery.ui.core.js
* jquery.ui.mouse.js
* jquery.ui.widget.js
*/
(function( $, undefined ) {
$.widget("ui.resizable", $.ui.mouse, {
version: "@VERSION",
widgetEventPrefix: "resize",
options: {
alsoResize: false,
animate: false,
animateDuration: "slow",
animateEasing: "swing",
aspectRatio: false,
autoHide: false,
containment: false,
ghost: false,
grid: false,
handles: "e,s,se",
helper: false,
maxHeight: null,
maxWidth: null,
minHeight: 10,
minWidth: 10,
zIndex: 1000
},
_create: function() {
var self = this, o = this.options;
this.element.addClass("ui-resizable");
$.extend(this, {
_aspectRatio: !!(o.aspectRatio),
aspectRatio: o.aspectRatio,
originalElement: this.element,
_proportionallyResizeElements: [],
_helper: o.helper || o.ghost || o.animate ? o.helper || 'ui-resizable-helper' : null
});
//Wrap the element if it cannot hold child nodes
if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) {
//Create a wrapper element and set the wrapper to the new current internal element
this.element.wrap(
$('<div class="ui-wrapper" style="overflow: hidden;"></div>').css({
position: this.element.css('position'),
width: this.element.outerWidth(),
height: this.element.outerHeight(),
top: this.element.css('top'),
left: this.element.css('left')
})
);
//Overwrite the original this.element
this.element = this.element.parent().data(
"resizable", this.element.data('resizable')
);
this.elementIsWrapper = true;
//Move margins to the wrapper
this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
//Prevent Safari textarea resize
this.originalResizeStyle = this.originalElement.css('resize');
this.originalElement.css('resize', 'none');
//Push the actual element to our proportionallyResize internal array
this._proportionallyResizeElements.push(this.originalElement.css({ position: 'static', zoom: 1, display: 'block' }));
// avoid IE jump (hard set the margin)
this.originalElement.css({ margin: this.originalElement.css('margin') });
// fix handlers offset
this._proportionallyResize();
}
this.handles = o.handles || (!$('.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(this.handles.constructor == String) {
if(this.handles == 'all') this.handles = 'n,e,s,w,se,sw,ne,nw';
var n = this.handles.split(","); this.handles = {};
for(var i = 0; i < n.length; i++) {
var handle = $.trim(n[i]), hname = 'ui-resizable-'+handle;
var axis = $('<div class="ui-resizable-handle ' + hname + '"></div>');
// increase zIndex of sw, se, ne, nw axis
//TODO : this modifies original option
if(/sw|se|ne|nw/.test(handle)) axis.css({ zIndex: ++o.zIndex });
//TODO : What's going on here?
if ('se' == handle) {
axis.addClass('ui-icon ui-icon-gripsmall-diagonal-se');
};
//Insert into internal handles object and append to element
this.handles[handle] = '.ui-resizable-'+handle;
this.element.append(axis);
}
}
this._renderAxis = function(target) {
target = target || this.element;
for(var i in this.handles) {
if(this.handles[i].constructor == String)
this.handles[i] = $(this.handles[i], this.element).show();
//Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) {
var axis = $(this.handles[i], this.element), padWrapper = 0;
//Checking the correct pad and border
padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();
//The padding type i have to apply...
var padPos = [ 'padding',
/ne|nw|n/.test(i) ? 'Top' :
/se|sw|s/.test(i) ? 'Bottom' :
/^e$/.test(i) ? 'Right' : 'Left' ].join("");
target.css(padPos, padWrapper);
this._proportionallyResize();
}
//TODO: What's that good for? There's not anything to be executed left
if(!$(this.handles[i]).length)
continue;
}
};
//TODO: make renderAxis a prototype function
this._renderAxis(this.element);
this._handles = $('.ui-resizable-handle', this.element)
.disableSelection();
//Matching axis name
this._handles.mouseover(function() {
if (!self.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 = axis && axis[1] ? axis[1] : 'se';
}
});
//If we want to auto hide the elements
if (o.autoHide) {
this._handles.hide();
$(this.element)
.addClass("ui-resizable-autohide")
.hover(function() {
if (o.disabled) return;
$(this).removeClass("ui-resizable-autohide");
self._handles.show();
},
function(){
if (o.disabled) return;
if (!self.resizing) {
$(this).addClass("ui-resizable-autohide");
self._handles.hide();
}
});
}
//Initialize the mouse interaction
this._mouseInit();
},
destroy: function() {
this._mouseDestroy();
var _destroy = function(exp) {
$(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing")
.removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
};
//TODO: Unwrap at same DOM position
if (this.elementIsWrapper) {
_destroy(this.element);
var wrapper = this.element;
wrapper.after(
this.originalElement.css({
position: wrapper.css('position'),
width: wrapper.outerWidth(),
height: wrapper.outerHeight(),
top: wrapper.css('top'),
left: wrapper.css('left')
})
).remove();
}
this.originalElement.css('resize', this.originalResizeStyle);
_destroy(this.originalElement);
return this;
},
_mouseCapture: function(event) {
var handle = false;
for (var i in this.handles) {
if ($(this.handles[i])[0] == event.target) {
handle = true;
}
}
return !this.options.disabled && handle;
},
_mouseStart: function(event) {
var o = this.options, iniPos = this.element.position(), el = this.element;
this.resizing = true;
this.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };
// bugfix for http://dev.jquery.com/ticket/1749
if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {
el.css({ position: 'absolute', top: iniPos.top, left: iniPos.left });
}
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 = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
this.originalSize = this._helper ? { 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: event.pageX, top: event.pageY };
//Aspect Ratio
this.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);
var cursor = $('.ui-resizable-' + this.axis).css('cursor');
$('body').css('cursor', cursor == 'auto' ? this.axis + '-resize' : cursor);
el.addClass("ui-resizable-resizing");
this._propagate("start", event);
return true;
},
_mouseDrag: function(event) {
//Increase performance, avoid regex
var el = this.helper, o = this.options, props = {},
self = this, smp = this.originalMousePosition, a = this.axis;
var dx = (event.pageX-smp.left)||0, dy = (event.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, [event, dx, dy]);
// Put this in the mouseDrag handler since the user can start pressing shift while resizing
this._updateVirtualBoundaries(event.shiftKey);
if (this._aspectRatio || event.shiftKey)
data = this._updateRatio(data, event);
data = this._respectSize(data, event);
// plugins callbacks need to be called first
this._propagate("resize", event);
el.css({
top: this.position.top + "px", left: this.position.left + "px",
width: this.size.width + "px", height: this.size.height + "px"
});
if (!this._helper && this._proportionallyResizeElements.length)
this._proportionallyResize();
this._updateCache(data);
// calling the user callback at the end
this._trigger('resize', event, this.ui());
return false;
},
_mouseStop: function(event) {
this.resizing = false;
var o = this.options, self = this;
if(this._helper) {
var pr = this._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
soffsetw = ista ? 0 : self.sizeDiff.width;
var s = { width: (self.helper.width() - soffsetw), height: (self.helper.height() - soffseth) },
left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;
if (!o.animate)
this.element.css($.extend(s, { top: top, left: left }));
self.helper.height(self.size.height);
self.helper.width(self.size.width);
if (this._helper && !o.animate) this._proportionallyResize();
}
$('body').css('cursor', 'auto');
this.element.removeClass("ui-resizable-resizing");
this._propagate("stop", event);
if (this._helper) this.helper.remove();
return false;
},
_updateVirtualBoundaries: function(forceAspectRatio) {
var o = this.options, pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b;
b = {
minWidth: isNumber(o.minWidth) ? o.minWidth : 0,
maxWidth: isNumber(o.maxWidth) ? o.maxWidth : Infinity,
minHeight: isNumber(o.minHeight) ? o.minHeight : 0,
maxHeight: isNumber(o.maxHeight) ? o.maxHeight : Infinity
};
if(this._aspectRatio || forceAspectRatio) {
// We want to create an enclosing box whose aspect ration is the requested one
// First, compute the "projected" size for each dimension based on the aspect ratio and other dimension
pMinWidth = b.minHeight * this.aspectRatio;
pMinHeight = b.minWidth / this.aspectRatio;
pMaxWidth = b.maxHeight * this.aspectRatio;
pMaxHeight = b.maxWidth / this.aspectRatio;
if(pMinWidth > b.minWidth) b.minWidth = pMinWidth;
if(pMinHeight > b.minHeight) b.minHeight = pMinHeight;
if(pMaxWidth < b.maxWidth) b.maxWidth = pMaxWidth;
if(pMaxHeight < b.maxHeight) b.maxHeight = pMaxHeight;
}
this._vBoundaries = b;
},
_updateCache: function(data) {
var o = this.options;
this.offset = this.helper.offset();
if (isNumber(data.left)) this.position.left = data.left;
if (isNumber(data.top)) this.position.top = data.top;
if (isNumber(data.height)) this.size.height = data.height;
if (isNumber(data.width)) this.size.width = data.width;
},
_updateRatio: function(data, event) {
var o = this.options, cpos = this.position, csize = this.size, a = this.axis;
if (isNumber(data.height)) data.width = (data.height * this.aspectRatio);
else if (isNumber(data.width)) data.height = (data.width / this.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, event) {
var el = this.helper, o = this._vBoundaries, pRatio = this._aspectRatio || event.shiftKey, a = this.axis,
ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(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 (!this._proportionallyResizeElements.length) return;
var element = this.helper || this.element;
for (var i=0; i < this._proportionallyResizeElements.length; i++) {
var prel = this._proportionallyResizeElements[i];
if (!this.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')];
this.borderDif = $.map(b, function(v, i) {
var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;
return border + padding;
});
}
if ($.browser.msie && !(!($(element).is(':hidden') || $(element).parents(':hidden').length)))
continue;
prel.css({
height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0,
width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0
});
};
},
_renderProxy: function() {
var el = this.element, o = this.options;
this.elementOffset = el.offset();
if(this._helper) {
this.helper = this.helper || $('<div style="overflow:hidden;"></div>');
// fix ie6 offset TODO: This seems broken
var ie6 = $.browser.msie && $.browser.version < 7, ie6offset = (ie6 ? 1 : 0),
pxyoffset = ( ie6 ? 2 : -1 );
this.helper.addClass(this._helper).css({
width: this.element.outerWidth() + pxyoffset,
height: this.element.outerHeight() + pxyoffset,
position: 'absolute',
left: this.elementOffset.left - ie6offset +'px',
top: this.elementOffset.top - ie6offset +'px',
zIndex: ++o.zIndex //TODO: Don't modify option
});
this.helper
.appendTo("body")
.disableSelection();
} else {
this.helper = this.element;
}
},
_change: {
e: function(event, dx, dy) {
return { width: this.originalSize.width + dx };
},
w: function(event, dx, dy) {
var o = this.options, cs = this.originalSize, sp = this.originalPosition;
return { left: sp.left + dx, width: cs.width - dx };
},
n: function(event, dx, dy) {
var o = this.options, cs = this.originalSize, sp = this.originalPosition;
return { top: sp.top + dy, height: cs.height - dy };
},
s: function(event, dx, dy) {
return { height: this.originalSize.height + dy };
},
se: function(event, dx, dy) {
return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
},
sw: function(event, dx, dy) {
return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
},
ne: function(event, dx, dy) {
return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
},
nw: function(event, dx, dy) {
return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
}
},
_propagate: function(n, event) {
$.ui.plugin.call(this, n, [event, this.ui()]);
(n != "resize" && this._trigger(n, event, this.ui()));
},
plugins: {},
ui: function() {
return {
originalElement: this.originalElement,
element: this.element,
helper: this.helper,
position: this.position,
size: this.size,
originalSize: this.originalSize,
originalPosition: this.originalPosition
};
}
});
/*
* Resizable Extensions
*/
$.ui.plugin.add("resizable", "alsoResize", {
start: function (event, ui) {
var self = $(this).data("resizable"), o = self.options;
var _store = function (exp) {
$(exp).each(function() {
var el = $(this);
el.data("resizable-alsoresize", {
width: parseInt(el.width(), 10), height: parseInt(el.height(), 10),
left: parseInt(el.css('left'), 10), top: parseInt(el.css('top'), 10)
});
});
};
if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0]; _store(o.alsoResize); }
else { $.each(o.alsoResize, function (exp) { _store(exp); }); }
}else{
_store(o.alsoResize);
}
},
resize: function (event, ui) {
var self = $(this).data("resizable"), o = self.options, 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 el = $(this), start = $(this).data("resizable-alsoresize"), style = {},
css = c && c.length ? c : el.parents(ui.originalElement[0]).length ? ['width', 'height'] : ['width', 'height', 'top', 'left'];
$.each(css, function (i, prop) {
var sum = (start[prop]||0) + (delta[prop]||0);
if (sum && sum >= 0)
style[prop] = sum || null;
});
el.css(style);
});
};
if (typeof(o.alsoResize) == 'object' && !o.alsoResize.nodeType) {
$.each(o.alsoResize, function (exp, c) { _alsoResize(exp, c); });
}else{
_alsoResize(o.alsoResize);
}
},
stop: function (event, ui) {
$(this).removeData("resizable-alsoresize");
}
});
$.ui.plugin.add("resizable", "animate", {
stop: function(event, ui) {
var self = $(this).data("resizable"), o = self.options;
var pr = self._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
soffseth = ista && $.ui.hasScroll(pr[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,
easing: o.animateEasing,
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.length) $(pr[0]).css({ width: data.width, height: data.height });
// propagating resize, and updating values for each animation step
self._updateCache(data);
self._propagate("resize", event);
}
}
);
}
});
$.ui.plugin.add("resizable", "containment", {
start: function(event, ui) {
var self = $(this).data("resizable"), o = self.options, 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 {
var element = $(ce), p = [];
$([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); });
self.containerOffset = element.offset();
self.containerPosition = element.position();
self.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) };
var co = self.containerOffset, ch = self.containerSize.height, cw = self.containerSize.width,
width = ($.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(event, ui) {
var self = $(this).data("resizable"), o = self.options,
ps = self.containerSize, co = self.containerOffset, cs = self.size, cp = self.position,
pRatio = self._aspectRatio || event.shiftKey, cop = { top:0, left:0 }, ce = self.containerElement;
if (ce[0] != document && (/static/).test(ce.css('position'))) cop = co;
if (cp.left < (self._helper ? co.left : 0)) {
self.size.width = self.size.width + (self._helper ? (self.position.left - co.left) : (self.position.left - cop.left));
if (pRatio) self.size.height = self.size.width / self.aspectRatio;
self.position.left = o.helper ? co.left : 0;
}
if (cp.top < (self._helper ? co.top : 0)) {
self.size.height = self.size.height + (self._helper ? (self.position.top - co.top) : self.position.top);
if (pRatio) self.size.width = self.size.height * self.aspectRatio;
self.position.top = self._helper ? co.top : 0;
}
self.offset.left = self.parentData.left+self.position.left;
self.offset.top = self.parentData.top+self.position.top;
var woset = Math.abs( (self._helper ? self.offset.left - cop.left : (self.offset.left - cop.left)) + self.sizeDiff.width ),
hoset = Math.abs( (self._helper ? self.offset.top - cop.top : (self.offset.top - co.top)) + self.sizeDiff.height );
var isParent = self.containerElement.get(0) == self.element.parent().get(0),
isOffsetRelative = /relative|absolute/.test(self.containerElement.css('position'));
if(isParent && isOffsetRelative) woset -= self.parentData.left;
if (woset + self.size.width >= self.parentData.width) {
self.size.width = self.parentData.width - woset;
if (pRatio) self.size.height = self.size.width / self.aspectRatio;
}
if (hoset + self.size.height >= self.parentData.height) {
self.size.height = self.parentData.height - hoset;
if (pRatio) self.size.width = self.size.height * self.aspectRatio;
}
},
stop: function(event, ui){
var self = $(this).data("resizable"), o = self.options, cp = self.position,
co = self.containerOffset, cop = self.containerPosition, ce = self.containerElement;
var helper = $(self.helper), ho = helper.offset(), w = helper.outerWidth() - self.sizeDiff.width, h = helper.outerHeight() - self.sizeDiff.height;
if (self._helper && !o.animate && (/relative/).test(ce.css('position')))
$(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
if (self._helper && !o.animate && (/static/).test(ce.css('position')))
$(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
}
});
$.ui.plugin.add("resizable", "ghost", {
start: function(event, ui) {
var self = $(this).data("resizable"), o = self.options, cs = self.size;
self.ghost = self.originalElement.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(event, ui){
var self = $(this).data("resizable"), o = self.options;
if (self.ghost) self.ghost.css({ position: 'relative', height: self.size.height, width: self.size.width });
},
stop: function(event, ui){
var self = $(this).data("resizable"), o = self.options;
if (self.ghost && self.helper) self.helper.get(0).removeChild(self.ghost.get(0));
}
});
$.ui.plugin.add("resizable", "grid", {
resize: function(event, ui) {
var self = $(this).data("resizable"), o = self.options, cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || event.shiftKey;
o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
var ox = Math.round((cs.width - os.width) / (o.grid[0]||1)) * (o.grid[0]||1), oy = Math.round((cs.height - os.height) / (o.grid[1]||1)) * (o.grid[1]||1);
if (/^(se|s|e)$/.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;
}
}
});
var num = function(v) {
return parseInt(v, 10) || 0;
};
var isNumber = function(value) {
return !isNaN(parseInt(value, 10));
};
})(jQuery);