2 * jQuery UI Resizable 1.7.1
4 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT (MIT-LICENSE.txt)
6 * and GPL (GPL-LICENSE.txt) licenses.
8 * http://docs.jquery.com/UI/Resizables
15 $.widget("ui.resizable", $.extend({}, $.ui.mouse, {
19 var self = this, o = this.options;
20 this.element.addClass("ui-resizable");
23 _aspectRatio: !!(o.aspectRatio),
24 aspectRatio: o.aspectRatio,
25 originalElement: this.element,
26 _proportionallyResizeElements: [],
27 _helper: o.helper || o.ghost || o.animate ? o.helper || 'ui-resizable-helper' : null
30 //Wrap the element if it cannot hold child nodes
31 if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) {
33 //Opera fix for relative positioning
34 if (/relative/.test(this.element.css('position')) && $.browser.opera)
35 this.element.css({ position: 'relative', top: 'auto', left: 'auto' });
37 //Create a wrapper element and set the wrapper to the new current internal element
39 $('<div class="ui-wrapper" style="overflow: hidden;"></div>').css({
40 position: this.element.css('position'),
41 width: this.element.outerWidth(),
42 height: this.element.outerHeight(),
43 top: this.element.css('top'),
44 left: this.element.css('left')
48 //Overwrite the original this.element
49 this.element = this.element.parent().data(
50 "resizable", this.element.data('resizable')
53 this.elementIsWrapper = true;
55 //Move margins to the wrapper
56 this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
57 this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
59 //Prevent Safari textarea resize
60 this.originalResizeStyle = this.originalElement.css('resize');
61 this.originalElement.css('resize', 'none');
63 //Push the actual element to our proportionallyResize internal array
64 this._proportionallyResizeElements.push(this.originalElement.css({ position: 'static', zoom: 1, display: 'block' }));
66 // avoid IE jump (hard set the margin)
67 this.originalElement.css({ margin: this.originalElement.css('margin') });
69 // fix handlers offset
70 this._proportionallyResize();
74 this.handles = o.handles || (!$('.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' });
75 if(this.handles.constructor == String) {
77 if(this.handles == 'all') this.handles = 'n,e,s,w,se,sw,ne,nw';
78 var n = this.handles.split(","); this.handles = {};
80 for(var i = 0; i < n.length; i++) {
82 var handle = $.trim(n[i]), hname = 'ui-resizable-'+handle;
83 var axis = $('<div class="ui-resizable-handle ' + hname + '"></div>');
85 // increase zIndex of sw, se, ne, nw axis
86 //TODO : this modifies original option
87 if(/sw|se|ne|nw/.test(handle)) axis.css({ zIndex: ++o.zIndex });
89 //TODO : What's going on here?
91 axis.addClass('ui-icon ui-icon-gripsmall-diagonal-se');
94 //Insert into internal handles object and append to element
95 this.handles[handle] = '.ui-resizable-'+handle;
96 this.element.append(axis);
101 this._renderAxis = function(target) {
103 target = target || this.element;
105 for(var i in this.handles) {
107 if(this.handles[i].constructor == String)
108 this.handles[i] = $(this.handles[i], this.element).show();
110 //Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
111 if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) {
113 var axis = $(this.handles[i], this.element), padWrapper = 0;
115 //Checking the correct pad and border
116 padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();
118 //The padding type i have to apply...
119 var padPos = [ 'padding',
120 /ne|nw|n/.test(i) ? 'Top' :
121 /se|sw|s/.test(i) ? 'Bottom' :
122 /^e$/.test(i) ? 'Right' : 'Left' ].join("");
124 target.css(padPos, padWrapper);
126 this._proportionallyResize();
130 //TODO: What's that good for? There's not anything to be executed left
131 if(!$(this.handles[i]).length)
137 //TODO: make renderAxis a prototype function
138 this._renderAxis(this.element);
140 this._handles = $('.ui-resizable-handle', this.element)
144 this._handles.mouseover(function() {
145 if (!self.resizing) {
147 var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
149 self.axis = axis && axis[1] ? axis[1] : 'se';
153 //If we want to auto hide the elements
155 this._handles.hide();
157 .addClass("ui-resizable-autohide")
159 $(this).removeClass("ui-resizable-autohide");
160 self._handles.show();
163 if (!self.resizing) {
164 $(this).addClass("ui-resizable-autohide");
165 self._handles.hide();
170 //Initialize the mouse interaction
175 destroy: function() {
177 this._mouseDestroy();
179 var _destroy = function(exp) {
180 $(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing")
181 .removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
184 //TODO: Unwrap at same DOM position
185 if (this.elementIsWrapper) {
186 _destroy(this.element);
187 var wrapper = this.element;
188 wrapper.parent().append(
189 this.originalElement.css({
190 position: wrapper.css('position'),
191 width: wrapper.outerWidth(),
192 height: wrapper.outerHeight(),
193 top: wrapper.css('top'),
194 left: wrapper.css('left')
199 this.originalElement.css('resize', this.originalResizeStyle);
200 _destroy(this.originalElement);
204 _mouseCapture: function(event) {
207 for(var i in this.handles) {
208 if($(this.handles[i])[0] == event.target) handle = true;
211 return this.options.disabled || !!handle;
215 _mouseStart: function(event) {
217 var o = this.options, iniPos = this.element.position(), el = this.element;
219 this.resizing = true;
220 this.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };
222 // bugfix for http://dev.jquery.com/ticket/1749
223 if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {
224 el.css({ position: 'absolute', top: iniPos.top, left: iniPos.left });
227 //Opera fixing relative position
228 if ($.browser.opera && (/relative/).test(el.css('position')))
229 el.css({ position: 'relative', top: 'auto', left: 'auto' });
233 var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));
236 curleft += $(o.containment).scrollLeft() || 0;
237 curtop += $(o.containment).scrollTop() || 0;
240 //Store needed variables
241 this.offset = this.helper.offset();
242 this.position = { left: curleft, top: curtop };
243 this.size = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
244 this.originalSize = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
245 this.originalPosition = { left: curleft, top: curtop };
246 this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };
247 this.originalMousePosition = { left: event.pageX, top: event.pageY };
250 this.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);
252 var cursor = $('.ui-resizable-' + this.axis).css('cursor');
253 $('body').css('cursor', cursor == 'auto' ? this.axis + '-resize' : cursor);
255 el.addClass("ui-resizable-resizing");
256 this._propagate("start", event);
260 _mouseDrag: function(event) {
262 //Increase performance, avoid regex
263 var el = this.helper, o = this.options, props = {},
264 self = this, smp = this.originalMousePosition, a = this.axis;
266 var dx = (event.pageX-smp.left)||0, dy = (event.pageY-smp.top)||0;
267 var trigger = this._change[a];
268 if (!trigger) return false;
270 // Calculate the attrs that will be change
271 var data = trigger.apply(this, [event, dx, dy]), ie6 = $.browser.msie && $.browser.version < 7, csdif = this.sizeDiff;
273 if (this._aspectRatio || event.shiftKey)
274 data = this._updateRatio(data, event);
276 data = this._respectSize(data, event);
278 // plugins callbacks need to be called first
279 this._propagate("resize", event);
282 top: this.position.top + "px", left: this.position.left + "px",
283 width: this.size.width + "px", height: this.size.height + "px"
286 if (!this._helper && this._proportionallyResizeElements.length)
287 this._proportionallyResize();
289 this._updateCache(data);
291 // calling the user callback at the end
292 this._trigger('resize', event, this.ui());
297 _mouseStop: function(event) {
299 this.resizing = false;
300 var o = this.options, self = this;
303 var pr = this._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
304 soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
305 soffsetw = ista ? 0 : self.sizeDiff.width;
307 var s = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },
308 left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
309 top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;
312 this.element.css($.extend(s, { top: top, left: left }));
314 self.helper.height(self.size.height);
315 self.helper.width(self.size.width);
317 if (this._helper && !o.animate) this._proportionallyResize();
320 $('body').css('cursor', 'auto');
322 this.element.removeClass("ui-resizable-resizing");
324 this._propagate("stop", event);
326 if (this._helper) this.helper.remove();
331 _updateCache: function(data) {
332 var o = this.options;
333 this.offset = this.helper.offset();
334 if (isNumber(data.left)) this.position.left = data.left;
335 if (isNumber(data.top)) this.position.top = data.top;
336 if (isNumber(data.height)) this.size.height = data.height;
337 if (isNumber(data.width)) this.size.width = data.width;
340 _updateRatio: function(data, event) {
342 var o = this.options, cpos = this.position, csize = this.size, a = this.axis;
344 if (data.height) data.width = (csize.height * this.aspectRatio);
345 else if (data.width) data.height = (csize.width / this.aspectRatio);
348 data.left = cpos.left + (csize.width - data.width);
352 data.top = cpos.top + (csize.height - data.height);
353 data.left = cpos.left + (csize.width - data.width);
359 _respectSize: function(data, event) {
361 var el = this.helper, o = this.options, pRatio = this._aspectRatio || event.shiftKey, a = this.axis,
362 ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
363 isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(data.height) && o.minHeight && (o.minHeight > data.height);
365 if (isminw) data.width = o.minWidth;
366 if (isminh) data.height = o.minHeight;
367 if (ismaxw) data.width = o.maxWidth;
368 if (ismaxh) data.height = o.maxHeight;
370 var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;
371 var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);
373 if (isminw && cw) data.left = dw - o.minWidth;
374 if (ismaxw && cw) data.left = dw - o.maxWidth;
375 if (isminh && ch) data.top = dh - o.minHeight;
376 if (ismaxh && ch) data.top = dh - o.maxHeight;
378 // fixing jump error on top/left - bug #2330
379 var isNotwh = !data.width && !data.height;
380 if (isNotwh && !data.left && data.top) data.top = null;
381 else if (isNotwh && !data.top && data.left) data.left = null;
386 _proportionallyResize: function() {
388 var o = this.options;
389 if (!this._proportionallyResizeElements.length) return;
390 var element = this.helper || this.element;
392 for (var i=0; i < this._proportionallyResizeElements.length; i++) {
394 var prel = this._proportionallyResizeElements[i];
396 if (!this.borderDif) {
397 var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],
398 p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];
400 this.borderDif = $.map(b, function(v, i) {
401 var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;
402 return border + padding;
406 if ($.browser.msie && !(!($(element).is(':hidden') || $(element).parents(':hidden').length)))
410 height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0,
411 width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0
418 _renderProxy: function() {
420 var el = this.element, o = this.options;
421 this.elementOffset = el.offset();
425 this.helper = this.helper || $('<div style="overflow:hidden;"></div>');
427 // fix ie6 offset TODO: This seems broken
428 var ie6 = $.browser.msie && $.browser.version < 7, ie6offset = (ie6 ? 1 : 0),
429 pxyoffset = ( ie6 ? 2 : -1 );
431 this.helper.addClass(this._helper).css({
432 width: this.element.outerWidth() + pxyoffset,
433 height: this.element.outerHeight() + pxyoffset,
434 position: 'absolute',
435 left: this.elementOffset.left - ie6offset +'px',
436 top: this.elementOffset.top - ie6offset +'px',
437 zIndex: ++o.zIndex //TODO: Don't modify option
445 this.helper = this.element;
451 e: function(event, dx, dy) {
452 return { width: this.originalSize.width + dx };
454 w: function(event, dx, dy) {
455 var o = this.options, cs = this.originalSize, sp = this.originalPosition;
456 return { left: sp.left + dx, width: cs.width - dx };
458 n: function(event, dx, dy) {
459 var o = this.options, cs = this.originalSize, sp = this.originalPosition;
460 return { top: sp.top + dy, height: cs.height - dy };
462 s: function(event, dx, dy) {
463 return { height: this.originalSize.height + dy };
465 se: function(event, dx, dy) {
466 return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
468 sw: function(event, dx, dy) {
469 return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
471 ne: function(event, dx, dy) {
472 return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
474 nw: function(event, dx, dy) {
475 return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
479 _propagate: function(n, event) {
480 $.ui.plugin.call(this, n, [event, this.ui()]);
481 (n != "resize" && this._trigger(n, event, this.ui()));
488 originalElement: this.originalElement,
489 element: this.element,
491 position: this.position,
493 originalSize: this.originalSize,
494 originalPosition: this.originalPosition
500 $.extend($.ui.resizable, {
502 eventPrefix: "resize",
506 animateDuration: "slow",
507 animateEasing: "swing",
510 cancel: ":input,option",
527 * Resizable Extensions
530 $.ui.plugin.add("resizable", "alsoResize", {
532 start: function(event, ui) {
534 var self = $(this).data("resizable"), o = self.options;
536 _store = function(exp) {
537 $(exp).each(function() {
538 $(this).data("resizable-alsoresize", {
539 width: parseInt($(this).width(), 10), height: parseInt($(this).height(), 10),
540 left: parseInt($(this).css('left'), 10), top: parseInt($(this).css('top'), 10)
545 if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
546 if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0]; _store(o.alsoResize); }
547 else { $.each(o.alsoResize, function(exp, c) { _store(exp); }); }
549 _store(o.alsoResize);
553 resize: function(event, ui){
554 var self = $(this).data("resizable"), o = self.options, os = self.originalSize, op = self.originalPosition;
557 height: (self.size.height - os.height) || 0, width: (self.size.width - os.width) || 0,
558 top: (self.position.top - op.top) || 0, left: (self.position.left - op.left) || 0
561 _alsoResize = function(exp, c) {
562 $(exp).each(function() {
563 var el = $(this), start = $(this).data("resizable-alsoresize"), style = {}, css = c && c.length ? c : ['width', 'height', 'top', 'left'];
565 $.each(css || ['width', 'height', 'top', 'left'], function(i, prop) {
566 var sum = (start[prop]||0) + (delta[prop]||0);
568 style[prop] = sum || null;
571 //Opera fixing relative position
572 if (/relative/.test(el.css('position')) && $.browser.opera) {
573 self._revertToRelativePosition = true;
574 el.css({ position: 'absolute', top: 'auto', left: 'auto' });
581 if (typeof(o.alsoResize) == 'object' && !o.alsoResize.nodeType) {
582 $.each(o.alsoResize, function(exp, c) { _alsoResize(exp, c); });
584 _alsoResize(o.alsoResize);
588 stop: function(event, ui){
589 var self = $(this).data("resizable");
591 //Opera fixing relative position
592 if (self._revertToRelativePosition && $.browser.opera) {
593 self._revertToRelativePosition = false;
594 el.css({ position: 'relative' });
597 $(this).removeData("resizable-alsoresize-start");
601 $.ui.plugin.add("resizable", "animate", {
603 stop: function(event, ui) {
604 var self = $(this).data("resizable"), o = self.options;
606 var pr = self._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
607 soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
608 soffsetw = ista ? 0 : self.sizeDiff.width;
610 var style = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },
611 left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
612 top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;
614 self.element.animate(
615 $.extend(style, top && left ? { top: top, left: left } : {}), {
616 duration: o.animateDuration,
617 easing: o.animateEasing,
621 width: parseInt(self.element.css('width'), 10),
622 height: parseInt(self.element.css('height'), 10),
623 top: parseInt(self.element.css('top'), 10),
624 left: parseInt(self.element.css('left'), 10)
627 if (pr && pr.length) $(pr[0]).css({ width: data.width, height: data.height });
629 // propagating resize, and updating values for each animation step
630 self._updateCache(data);
631 self._propagate("resize", event);
640 $.ui.plugin.add("resizable", "containment", {
642 start: function(event, ui) {
643 var self = $(this).data("resizable"), o = self.options, el = self.element;
644 var oc = o.containment, ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
647 self.containerElement = $(ce);
649 if (/document/.test(oc) || oc == document) {
650 self.containerOffset = { left: 0, top: 0 };
651 self.containerPosition = { left: 0, top: 0 };
654 element: $(document), left: 0, top: 0,
655 width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight
659 // i'm a node, so compute top, left, right, bottom
661 var element = $(ce), p = [];
662 $([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); });
664 self.containerOffset = element.offset();
665 self.containerPosition = element.position();
666 self.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) };
668 var co = self.containerOffset, ch = self.containerSize.height, cw = self.containerSize.width,
669 width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw ), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);
672 element: ce, left: co.left, top: co.top, width: width, height: height
677 resize: function(event, ui) {
678 var self = $(this).data("resizable"), o = self.options,
679 ps = self.containerSize, co = self.containerOffset, cs = self.size, cp = self.position,
680 pRatio = self._aspectRatio || event.shiftKey, cop = { top:0, left:0 }, ce = self.containerElement;
682 if (ce[0] != document && (/static/).test(ce.css('position'))) cop = co;
684 if (cp.left < (self._helper ? co.left : 0)) {
685 self.size.width = self.size.width + (self._helper ? (self.position.left - co.left) : (self.position.left - cop.left));
686 if (pRatio) self.size.height = self.size.width / o.aspectRatio;
687 self.position.left = o.helper ? co.left : 0;
690 if (cp.top < (self._helper ? co.top : 0)) {
691 self.size.height = self.size.height + (self._helper ? (self.position.top - co.top) : self.position.top);
692 if (pRatio) self.size.width = self.size.height * o.aspectRatio;
693 self.position.top = self._helper ? co.top : 0;
696 self.offset.left = self.parentData.left+self.position.left;
697 self.offset.top = self.parentData.top+self.position.top;
699 var woset = Math.abs( (self._helper ? self.offset.left - cop.left : (self.offset.left - cop.left)) + self.sizeDiff.width ),
700 hoset = Math.abs( (self._helper ? self.offset.top - cop.top : (self.offset.top - co.top)) + self.sizeDiff.height );
702 var isParent = self.containerElement.get(0) == self.element.parent().get(0),
703 isOffsetRelative = /relative|absolute/.test(self.containerElement.css('position'));
705 if(isParent && isOffsetRelative) woset -= self.parentData.left;
707 if (woset + self.size.width >= self.parentData.width) {
708 self.size.width = self.parentData.width - woset;
709 if (pRatio) self.size.height = self.size.width / self.aspectRatio;
712 if (hoset + self.size.height >= self.parentData.height) {
713 self.size.height = self.parentData.height - hoset;
714 if (pRatio) self.size.width = self.size.height * self.aspectRatio;
718 stop: function(event, ui){
719 var self = $(this).data("resizable"), o = self.options, cp = self.position,
720 co = self.containerOffset, cop = self.containerPosition, ce = self.containerElement;
722 var helper = $(self.helper), ho = helper.offset(), w = helper.outerWidth() - self.sizeDiff.width, h = helper.outerHeight() - self.sizeDiff.height;
724 if (self._helper && !o.animate && (/relative/).test(ce.css('position')))
725 $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
727 if (self._helper && !o.animate && (/static/).test(ce.css('position')))
728 $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
733 $.ui.plugin.add("resizable", "ghost", {
735 start: function(event, ui) {
737 var self = $(this).data("resizable"), o = self.options, cs = self.size;
739 self.ghost = self.originalElement.clone();
741 .css({ opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 })
742 .addClass('ui-resizable-ghost')
743 .addClass(typeof o.ghost == 'string' ? o.ghost : '');
745 self.ghost.appendTo(self.helper);
749 resize: function(event, ui){
750 var self = $(this).data("resizable"), o = self.options;
751 if (self.ghost) self.ghost.css({ position: 'relative', height: self.size.height, width: self.size.width });
754 stop: function(event, ui){
755 var self = $(this).data("resizable"), o = self.options;
756 if (self.ghost && self.helper) self.helper.get(0).removeChild(self.ghost.get(0));
761 $.ui.plugin.add("resizable", "grid", {
763 resize: function(event, ui) {
764 var self = $(this).data("resizable"), o = self.options, cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || event.shiftKey;
765 o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
766 var ox = Math.round((cs.width - os.width) / (o.grid[0]||1)) * (o.grid[0]||1), oy = Math.round((cs.height - os.height) / (o.grid[1]||1)) * (o.grid[1]||1);
768 if (/^(se|s|e)$/.test(a)) {
769 self.size.width = os.width + ox;
770 self.size.height = os.height + oy;
772 else if (/^(ne)$/.test(a)) {
773 self.size.width = os.width + ox;
774 self.size.height = os.height + oy;
775 self.position.top = op.top - oy;
777 else if (/^(sw)$/.test(a)) {
778 self.size.width = os.width + ox;
779 self.size.height = os.height + oy;
780 self.position.left = op.left - ox;
783 self.size.width = os.width + ox;
784 self.size.height = os.height + oy;
785 self.position.top = op.top - oy;
786 self.position.left = op.left - ox;
792 var num = function(v) {
793 return parseInt(v, 10) || 0;
796 var isNumber = function(value) {
797 return !isNaN(parseInt(value, 10));