resources/jquery.ui/jquery.ui.resizable.js

   1 /*
   2  * jQuery UI Resizable 1.8.2
   3  *
   4  * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
   5  * Dual licensed under the MIT (MIT-LICENSE.txt)
   6  * and GPL (GPL-LICENSE.txt) licenses.
   7  *
   8  * http://docs.jquery.com/UI/Resizables
   9  *
  10  * Depends:
  11  *      jquery.ui.core.js
  12  *      jquery.ui.mouse.js
  13  *      jquery.ui.widget.js
  14  */
  15 (function($) {
  16
  17 $.widget("ui.resizable", $.ui.mouse, {
  18         widgetEventPrefix: "resize",
  19         options: {
  20                 alsoResize: false,
  21                 animate: false,
  22                 animateDuration: "slow",
  23                 animateEasing: "swing",
  24                 aspectRatio: false,
  25                 autoHide: false,
  26                 containment: false,
  27                 ghost: false,
  28                 grid: false,
  29                 handles: "e,s,se",
  30                 helper: false,
  31                 maxHeight: null,
  32                 maxWidth: null,
  33                 minHeight: 10,
  34                 minWidth: 10,
  35                 zIndex: 1000
  36         },
  37         _create: function() {
  38
  39                 var self = this, o = this.options;
  40                 this.element.addClass("ui-resizable");
  41
  42                 $.extend(this, {
  43                         _aspectRatio: !!(o.aspectRatio),
  44                         aspectRatio: o.aspectRatio,
  45                         originalElement: this.element,
  46                         _proportionallyResizeElements: [],
  47                         _helper: o.helper || o.ghost || o.animate ? o.helper || 'ui-resizable-helper' : null
  48                 });
  49
  50                 //Wrap the element if it cannot hold child nodes
  51                 if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) {
  52
  53                         //Opera fix for relative positioning
  54                         if (/relative/.test(this.element.css('position')) && $.browser.opera)
  55                                 this.element.css({ position: 'relative', top: 'auto', left: 'auto' });
  56
  57                         //Create a wrapper element and set the wrapper to the new current internal element
  58                         this.element.wrap(
  59                                 $('<div class="ui-wrapper" style="overflow: hidden;"></div>').css({
  60                                         position: this.element.css('position'),
  61                                         width: this.element.outerWidth(),
  62                                         height: this.element.outerHeight(),
  63                                         top: this.element.css('top'),
  64                                         left: this.element.css('left')
  65                                 })
  66                         );
  67
  68                         //Overwrite the original this.element
  69                         this.element = this.element.parent().data(
  70                                 "resizable", this.element.data('resizable')
  71                         );
  72
  73                         this.elementIsWrapper = true;
  74
  75                         //Move margins to the wrapper
  76                         this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
  77                         this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
  78
  79                         //Prevent Safari textarea resize
  80                         this.originalResizeStyle = this.originalElement.css('resize');
  81                         this.originalElement.css('resize', 'none');
  82
  83                         //Push the actual element to our proportionallyResize internal array
  84                         this._proportionallyResizeElements.push(this.originalElement.css({ position: 'static', zoom: 1, display: 'block' }));
  85
  86                         // avoid IE jump (hard set the margin)
  87                         this.originalElement.css({ margin: this.originalElement.css('margin') });
  88
  89                         // fix handlers offset
  90                         this._proportionallyResize();
  91
  92                 }
  93
  94                 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' });
  95                 if(this.handles.constructor == String) {
  96
  97                         if(this.handles == 'all') this.handles = 'n,e,s,w,se,sw,ne,nw';
  98                         var n = this.handles.split(","); this.handles = {};
  99
 100                         for(var i = 0; i < n.length; i++) {
 101
 102                                 var handle = $.trim(n[i]), hname = 'ui-resizable-'+handle;
 103                                 var axis = $('<div class="ui-resizable-handle ' + hname + '"></div>');
 104
 105                                 // increase zIndex of sw, se, ne, nw axis
 106                                 //TODO : this modifies original option
 107                                 if(/sw|se|ne|nw/.test(handle)) axis.css({ zIndex: ++o.zIndex });
 108
 109                                 //TODO : What's going on here?
 110                                 if ('se' == handle) {
 111                                         axis.addClass('ui-icon ui-icon-gripsmall-diagonal-se');
 112                                 };
 113
 114                                 //Insert into internal handles object and append to element
 115                                 this.handles[handle] = '.ui-resizable-'+handle;
 116                                 this.element.append(axis);
 117                         }
 118
 119                 }
 120
 121                 this._renderAxis = function(target) {
 122
 123                         target = target || this.element;
 124
 125                         for(var i in this.handles) {
 126
 127                                 if(this.handles[i].constructor == String)
 128                                         this.handles[i] = $(this.handles[i], this.element).show();
 129
 130                                 //Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
 131                                 if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) {
 132
 133                                         var axis = $(this.handles[i], this.element), padWrapper = 0;
 134
 135                                         //Checking the correct pad and border
 136                                         padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();
 137
 138                                         //The padding type i have to apply...
 139                                         var padPos = [ 'padding',
 140                                                 /ne|nw|n/.test(i) ? 'Top' :
 141                                                 /se|sw|s/.test(i) ? 'Bottom' :
 142                                                 /^e$/.test(i) ? 'Right' : 'Left' ].join("");
 143
 144                                         target.css(padPos, padWrapper);
 145
 146                                         this._proportionallyResize();
 147
 148                                 }
 149
 150                                 //TODO: What's that good for? There's not anything to be executed left
 151                                 if(!$(this.handles[i]).length)
 152                                         continue;
 153
 154                         }
 155                 };
 156
 157                 //TODO: make renderAxis a prototype function
 158                 this._renderAxis(this.element);
 159
 160                 this._handles = $('.ui-resizable-handle', this.element)
 161                         .disableSelection();
 162
 163                 //Matching axis name
 164                 this._handles.mouseover(function() {
 165                         if (!self.resizing) {
 166                                 if (this.className)
 167                                         var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
 168                                 //Axis, default = se
 169                                 self.axis = axis && axis[1] ? axis[1] : 'se';
 170                         }
 171                 });
 172
 173                 //If we want to auto hide the elements
 174                 if (o.autoHide) {
 175                         this._handles.hide();
 176                         $(this.element)
 177                                 .addClass("ui-resizable-autohide")
 178                                 .hover(function() {
 179                                         $(this).removeClass("ui-resizable-autohide");
 180                                         self._handles.show();
 181                                 },
 182                                 function(){
 183                                         if (!self.resizing) {
 184                                                 $(this).addClass("ui-resizable-autohide");
 185                                                 self._handles.hide();
 186                                         }
 187                                 });
 188                 }
 189
 190                 //Initialize the mouse interaction
 191                 this._mouseInit();
 192
 193         },
 194
 195         destroy: function() {
 196
 197                 this._mouseDestroy();
 198
 199                 var _destroy = function(exp) {
 200                         $(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing")
 201                                 .removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
 202                 };
 203
 204                 //TODO: Unwrap at same DOM position
 205                 if (this.elementIsWrapper) {
 206                         _destroy(this.element);
 207                         var wrapper = this.element;
 208                         wrapper.after(
 209                                 this.originalElement.css({
 210                                         position: wrapper.css('position'),
 211                                         width: wrapper.outerWidth(),
 212                                         height: wrapper.outerHeight(),
 213                                         top: wrapper.css('top'),
 214                                         left: wrapper.css('left')
 215                                 })
 216                         ).remove();
 217                 }
 218
 219                 this.originalElement.css('resize', this.originalResizeStyle);
 220                 _destroy(this.originalElement);
 221
 222                 return this;
 223         },
 224
 225         _mouseCapture: function(event) {
 226                 var handle = false;
 227                 for (var i in this.handles) {
 228                         if ($(this.handles[i])[0] == event.target) {
 229                                 handle = true;
 230                         }
 231                 }
 232
 233                 return !this.options.disabled && handle;
 234         },
 235
 236         _mouseStart: function(event) {
 237
 238                 var o = this.options, iniPos = this.element.position(), el = this.element;
 239
 240                 this.resizing = true;
 241                 this.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };
 242
 243                 // bugfix for http://dev.jquery.com/ticket/1749
 244                 if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {
 245                         el.css({ position: 'absolute', top: iniPos.top, left: iniPos.left });
 246                 }
 247
 248                 //Opera fixing relative position
 249                 if ($.browser.opera && (/relative/).test(el.css('position')))
 250                         el.css({ position: 'relative', top: 'auto', left: 'auto' });
 251
 252                 this._renderProxy();
 253
 254                 var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));
 255
 256                 if (o.containment) {
 257                         curleft += $(o.containment).scrollLeft() || 0;
 258                         curtop += $(o.containment).scrollTop() || 0;
 259                 }
 260
 261                 //Store needed variables
 262                 this.offset = this.helper.offset();
 263                 this.position = { left: curleft, top: curtop };
 264                 this.size = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
 265                 this.originalSize = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
 266                 this.originalPosition = { left: curleft, top: curtop };
 267                 this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };
 268                 this.originalMousePosition = { left: event.pageX, top: event.pageY };
 269
 270                 //Aspect Ratio
 271                 this.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);
 272
 273             var cursor = $('.ui-resizable-' + this.axis).css('cursor');
 274             $('body').css('cursor', cursor == 'auto' ? this.axis + '-resize' : cursor);
 275
 276                 el.addClass("ui-resizable-resizing");
 277                 this._propagate("start", event);
 278                 return true;
 279         },
 280
 281         _mouseDrag: function(event) {
 282
 283                 //Increase performance, avoid regex
 284                 var el = this.helper, o = this.options, props = {},
 285                         self = this, smp = this.originalMousePosition, a = this.axis;
 286
 287                 var dx = (event.pageX-smp.left)||0, dy = (event.pageY-smp.top)||0;
 288                 var trigger = this._change[a];
 289                 if (!trigger) return false;
 290
 291                 // Calculate the attrs that will be change
 292                 var data = trigger.apply(this, [event, dx, dy]), ie6 = $.browser.msie && $.browser.version < 7, csdif = this.sizeDiff;
 293
 294                 if (this._aspectRatio || event.shiftKey)
 295                         data = this._updateRatio(data, event);
 296
 297                 data = this._respectSize(data, event);
 298
 299                 // plugins callbacks need to be called first
 300                 this._propagate("resize", event);
 301
 302                 el.css({
 303                         top: this.position.top + "px", left: this.position.left + "px",
 304                         width: this.size.width + "px", height: this.size.height + "px"
 305                 });
 306
 307                 if (!this._helper && this._proportionallyResizeElements.length)
 308                         this._proportionallyResize();
 309
 310                 this._updateCache(data);
 311
 312                 // calling the user callback at the end
 313                 this._trigger('resize', event, this.ui());
 314
 315                 return false;
 316         },
 317
 318         _mouseStop: function(event) {
 319
 320                 this.resizing = false;
 321                 var o = this.options, self = this;
 322
 323                 if(this._helper) {
 324                         var pr = this._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
 325                                                 soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
 326                                                         soffsetw = ista ? 0 : self.sizeDiff.width;
 327
 328                         var s = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },
 329                                 left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
 330                                 top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;
 331
 332                         if (!o.animate)
 333                                 this.element.css($.extend(s, { top: top, left: left }));
 334
 335                         self.helper.height(self.size.height);
 336                         self.helper.width(self.size.width);
 337
 338                         if (this._helper && !o.animate) this._proportionallyResize();
 339                 }
 340
 341                 $('body').css('cursor', 'auto');
 342
 343                 this.element.removeClass("ui-resizable-resizing");
 344
 345                 this._propagate("stop", event);
 346
 347                 if (this._helper) this.helper.remove();
 348                 return false;
 349
 350         },
 351
 352         _updateCache: function(data) {
 353                 var o = this.options;
 354                 this.offset = this.helper.offset();
 355                 if (isNumber(data.left)) this.position.left = data.left;
 356                 if (isNumber(data.top)) this.position.top = data.top;
 357                 if (isNumber(data.height)) this.size.height = data.height;
 358                 if (isNumber(data.width)) this.size.width = data.width;
 359         },
 360
 361         _updateRatio: function(data, event) {
 362
 363                 var o = this.options, cpos = this.position, csize = this.size, a = this.axis;
 364
 365                 if (data.height) data.width = (csize.height * this.aspectRatio);
 366                 else if (data.width) data.height = (csize.width / this.aspectRatio);
 367
 368                 if (a == 'sw') {
 369                         data.left = cpos.left + (csize.width - data.width);
 370                         data.top = null;
 371                 }
 372                 if (a == 'nw') {
 373                         data.top = cpos.top + (csize.height - data.height);
 374                         data.left = cpos.left + (csize.width - data.width);
 375                 }
 376
 377                 return data;
 378         },
 379
 380         _respectSize: function(data, event) {
 381
 382                 var el = this.helper, o = this.options, pRatio = this._aspectRatio || event.shiftKey, a = this.axis,
 383                                 ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
 384                                         isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(data.height) && o.minHeight && (o.minHeight > data.height);
 385
 386                 if (isminw) data.width = o.minWidth;
 387                 if (isminh) data.height = o.minHeight;
 388                 if (ismaxw) data.width = o.maxWidth;
 389                 if (ismaxh) data.height = o.maxHeight;
 390
 391                 var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;
 392                 var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);
 393
 394                 if (isminw && cw) data.left = dw - o.minWidth;
 395                 if (ismaxw && cw) data.left = dw - o.maxWidth;
 396                 if (isminh && ch)       data.top = dh - o.minHeight;
 397                 if (ismaxh && ch)       data.top = dh - o.maxHeight;
 398
 399                 // fixing jump error on top/left - bug #2330
 400                 var isNotwh = !data.width && !data.height;
 401                 if (isNotwh && !data.left && data.top) data.top = null;
 402                 else if (isNotwh && !data.top && data.left) data.left = null;
 403
 404                 return data;
 405         },
 406
 407         _proportionallyResize: function() {
 408
 409                 var o = this.options;
 410                 if (!this._proportionallyResizeElements.length) return;
 411                 var element = this.helper || this.element;
 412
 413                 for (var i=0; i < this._proportionallyResizeElements.length; i++) {
 414
 415                         var prel = this._proportionallyResizeElements[i];
 416
 417                         if (!this.borderDif) {
 418                                 var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],
 419                                         p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];
 420
 421                                 this.borderDif = $.map(b, function(v, i) {
 422                                         var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;
 423                                         return border + padding;
 424                                 });
 425                         }
 426
 427                         if ($.browser.msie && !(!($(element).is(':hidden') || $(element).parents(':hidden').length)))
 428                                 continue;
 429
 430                         prel.css({
 431                                 height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0,
 432                                 width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0
 433                         });
 434
 435                 };
 436
 437         },
 438
 439         _renderProxy: function() {
 440
 441                 var el = this.element, o = this.options;
 442                 this.elementOffset = el.offset();
 443
 444                 if(this._helper) {
 445
 446                         this.helper = this.helper || $('<div style="overflow:hidden;"></div>');
 447
 448                         // fix ie6 offset TODO: This seems broken
 449                         var ie6 = $.browser.msie && $.browser.version < 7, ie6offset = (ie6 ? 1 : 0),
 450                         pxyoffset = ( ie6 ? 2 : -1 );
 451
 452                         this.helper.addClass(this._helper).css({
 453                                 width: this.element.outerWidth() + pxyoffset,
 454                                 height: this.element.outerHeight() + pxyoffset,
 455                                 position: 'absolute',
 456                                 left: this.elementOffset.left - ie6offset +'px',
 457                                 top: this.elementOffset.top - ie6offset +'px',
 458                                 zIndex: ++o.zIndex //TODO: Don't modify option
 459                         });
 460
 461                         this.helper
 462                                 .appendTo("body")
 463                                 .disableSelection();
 464
 465                 } else {
 466                         this.helper = this.element;
 467                 }
 468
 469         },
 470
 471         _change: {
 472                 e: function(event, dx, dy) {
 473                         return { width: this.originalSize.width + dx };
 474                 },
 475                 w: function(event, dx, dy) {
 476                         var o = this.options, cs = this.originalSize, sp = this.originalPosition;
 477                         return { left: sp.left + dx, width: cs.width - dx };
 478                 },
 479                 n: function(event, dx, dy) {
 480                         var o = this.options, cs = this.originalSize, sp = this.originalPosition;
 481                         return { top: sp.top + dy, height: cs.height - dy };
 482                 },
 483                 s: function(event, dx, dy) {
 484                         return { height: this.originalSize.height + dy };
 485                 },
 486                 se: function(event, dx, dy) {
 487                         return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
 488                 },
 489                 sw: function(event, dx, dy) {
 490                         return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
 491                 },
 492                 ne: function(event, dx, dy) {
 493                         return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
 494                 },
 495                 nw: function(event, dx, dy) {
 496                         return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
 497                 }
 498         },
 499
 500         _propagate: function(n, event) {
 501                 $.ui.plugin.call(this, n, [event, this.ui()]);
 502                 (n != "resize" && this._trigger(n, event, this.ui()));
 503         },
 504
 505         plugins: {},
 506
 507         ui: function() {
 508                 return {
 509                         originalElement: this.originalElement,
 510                         element: this.element,
 511                         helper: this.helper,
 512                         position: this.position,
 513                         size: this.size,
 514                         originalSize: this.originalSize,
 515                         originalPosition: this.originalPosition
 516                 };
 517         }
 518
 519 });
 520
 521 $.extend($.ui.resizable, {
 522         version: "1.8.2"
 523 });
 524
 525 /*
 526  * Resizable Extensions
 527  */
 528
 529 $.ui.plugin.add("resizable", "alsoResize", {
 530
 531         start: function(event, ui) {
 532
 533                 var self = $(this).data("resizable"), o = self.options;
 534
 535                 var _store = function(exp) {
 536                         $(exp).each(function() {
 537                                 $(this).data("resizable-alsoresize", {
 538                                         width: parseInt($(this).width(), 10), height: parseInt($(this).height(), 10),
 539                                         left: parseInt($(this).css('left'), 10), top: parseInt($(this).css('top'), 10)
 540                                 });
 541                         });
 542                 };
 543
 544                 if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
 545                         if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0];      _store(o.alsoResize); }
 546                         else { $.each(o.alsoResize, function(exp, c) { _store(exp); }); }
 547                 }else{
 548                         _store(o.alsoResize);
 549                 }
 550         },
 551
 552         resize: function(event, ui){
 553                 var self = $(this).data("resizable"), o = self.options, os = self.originalSize, op = self.originalPosition;
 554
 555                 var delta = {
 556                         height: (self.size.height - os.height) || 0, width: (self.size.width - os.width) || 0,
 557                         top: (self.position.top - op.top) || 0, left: (self.position.left - op.left) || 0
 558                 },
 559
 560                 _alsoResize = function(exp, c) {
 561                         $(exp).each(function() {
 562                                 var el = $(this), start = $(this).data("resizable-alsoresize"), style = {}, css = c && c.length ? c : ['width', 'height', 'top', 'left'];
 563
 564                                 $.each(css || ['width', 'height', 'top', 'left'], function(i, prop) {
 565                                         var sum = (start[prop]||0) + (delta[prop]||0);
 566                                         if (sum && sum >= 0)
 567                                                 style[prop] = sum || null;
 568                                 });
 569
 570                                 //Opera fixing relative position
 571                                 if (/relative/.test(el.css('position')) && $.browser.opera) {
 572                                         self._revertToRelativePosition = true;
 573                                         el.css({ position: 'absolute', top: 'auto', left: 'auto' });
 574                                 }
 575
 576                                 el.css(style);
 577                         });
 578                 };
 579
 580                 if (typeof(o.alsoResize) == 'object' && !o.alsoResize.nodeType) {
 581                         $.each(o.alsoResize, function(exp, c) { _alsoResize(exp, c); });
 582                 }else{
 583                         _alsoResize(o.alsoResize);
 584                 }
 585         },
 586
 587         stop: function(event, ui){
 588                 var self = $(this).data("resizable");
 589
 590                 //Opera fixing relative position
 591                 if (self._revertToRelativePosition && $.browser.opera) {
 592                         self._revertToRelativePosition = false;
 593                         el.css({ position: 'relative' });
 594                 }
 595
 596                 $(this).removeData("resizable-alsoresize-start");
 597         }
 598 });
 599
 600 $.ui.plugin.add("resizable", "animate", {
 601
 602         stop: function(event, ui) {
 603                 var self = $(this).data("resizable"), o = self.options;
 604
 605                 var pr = self._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
 606                                         soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
 607                                                 soffsetw = ista ? 0 : self.sizeDiff.width;
 608
 609                 var style = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },
 610                                         left = (parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left)) || null,
 611                                                 top = (parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top)) || null;
 612
 613                 self.element.animate(
 614                         $.extend(style, top && left ? { top: top, left: left } : {}), {
 615                                 duration: o.animateDuration,
 616                                 easing: o.animateEasing,
 617                                 step: function() {
 618
 619                                         var data = {
 620                                                 width: parseInt(self.element.css('width'), 10),
 621                                                 height: parseInt(self.element.css('height'), 10),
 622                                                 top: parseInt(self.element.css('top'), 10),
 623                                                 left: parseInt(self.element.css('left'), 10)
 624                                         };
 625
 626                                         if (pr && pr.length) $(pr[0]).css({ width: data.width, height: data.height });
 627
 628                                         // propagating resize, and updating values for each animation step
 629                                         self._updateCache(data);
 630                                         self._propagate("resize", event);
 631
 632                                 }
 633                         }
 634                 );
 635         }
 636
 637 });
 638
 639 $.ui.plugin.add("resizable", "containment", {
 640
 641         start: function(event, ui) {
 642                 var self = $(this).data("resizable"), o = self.options, el = self.element;
 643                 var oc = o.containment, ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
 644                 if (!ce) return;
 645
 646                 self.containerElement = $(ce);
 647
 648                 if (/document/.test(oc) || oc == document) {
 649                         self.containerOffset = { left: 0, top: 0 };
 650                         self.containerPosition = { left: 0, top: 0 };
 651
 652                         self.parentData = {
 653                                 element: $(document), left: 0, top: 0,
 654                                 width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight
 655                         };
 656                 }
 657
 658                 // i'm a node, so compute top, left, right, bottom
 659                 else {
 660                         var element = $(ce), p = [];
 661                         $([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); });
 662
 663                         self.containerOffset = element.offset();
 664                         self.containerPosition = element.position();
 665                         self.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) };
 666
 667                         var co = self.containerOffset, ch = self.containerSize.height,  cw = self.containerSize.width,
 668                                                 width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw ), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);
 669
 670                         self.parentData = {
 671                                 element: ce, left: co.left, top: co.top, width: width, height: height
 672                         };
 673                 }
 674         },
 675
 676         resize: function(event, ui) {
 677                 var self = $(this).data("resizable"), o = self.options,
 678                                 ps = self.containerSize, co = self.containerOffset, cs = self.size, cp = self.position,
 679                                 pRatio = self._aspectRatio || event.shiftKey, cop = { top:0, left:0 }, ce = self.containerElement;
 680
 681                 if (ce[0] != document && (/static/).test(ce.css('position'))) cop = co;
 682
 683                 if (cp.left < (self._helper ? co.left : 0)) {
 684                         self.size.width = self.size.width + (self._helper ? (self.position.left - co.left) : (self.position.left - cop.left));
 685                         if (pRatio) self.size.height = self.size.width / o.aspectRatio;
 686                         self.position.left = o.helper ? co.left : 0;
 687                 }
 688
 689                 if (cp.top < (self._helper ? co.top : 0)) {
 690                         self.size.height = self.size.height + (self._helper ? (self.position.top - co.top) : self.position.top);
 691                         if (pRatio) self.size.width = self.size.height * o.aspectRatio;
 692                         self.position.top = self._helper ? co.top : 0;
 693                 }
 694
 695                 self.offset.left = self.parentData.left+self.position.left;
 696                 self.offset.top = self.parentData.top+self.position.top;
 697
 698                 var woset = Math.abs( (self._helper ? self.offset.left - cop.left : (self.offset.left - cop.left)) + self.sizeDiff.width ),
 699                                         hoset = Math.abs( (self._helper ? self.offset.top - cop.top : (self.offset.top - co.top)) + self.sizeDiff.height );
 700
 701                 var isParent = self.containerElement.get(0) == self.element.parent().get(0),
 702                     isOffsetRelative = /relative|absolute/.test(self.containerElement.css('position'));
 703
 704                 if(isParent && isOffsetRelative) woset -= self.parentData.left;
 705
 706                 if (woset + self.size.width >= self.parentData.width) {
 707                         self.size.width = self.parentData.width - woset;
 708                         if (pRatio) self.size.height = self.size.width / self.aspectRatio;
 709                 }
 710
 711                 if (hoset + self.size.height >= self.parentData.height) {
 712                         self.size.height = self.parentData.height - hoset;
 713                         if (pRatio) self.size.width = self.size.height * self.aspectRatio;
 714                 }
 715         },
 716
 717         stop: function(event, ui){
 718                 var self = $(this).data("resizable"), o = self.options, cp = self.position,
 719                                 co = self.containerOffset, cop = self.containerPosition, ce = self.containerElement;
 720
 721                 var helper = $(self.helper), ho = helper.offset(), w = helper.outerWidth() - self.sizeDiff.width, h = helper.outerHeight() - self.sizeDiff.height;
 722
 723                 if (self._helper && !o.animate && (/relative/).test(ce.css('position')))
 724                         $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
 725
 726                 if (self._helper && !o.animate && (/static/).test(ce.css('position')))
 727                         $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
 728
 729         }
 730 });
 731
 732 $.ui.plugin.add("resizable", "ghost", {
 733
 734         start: function(event, ui) {
 735
 736                 var self = $(this).data("resizable"), o = self.options, cs = self.size;
 737
 738                 self.ghost = self.originalElement.clone();
 739                 self.ghost
 740                         .css({ opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 })
 741                         .addClass('ui-resizable-ghost')
 742                         .addClass(typeof o.ghost == 'string' ? o.ghost : '');
 743
 744                 self.ghost.appendTo(self.helper);
 745
 746         },
 747
 748         resize: function(event, ui){
 749                 var self = $(this).data("resizable"), o = self.options;
 750                 if (self.ghost) self.ghost.css({ position: 'relative', height: self.size.height, width: self.size.width });
 751         },
 752
 753         stop: function(event, ui){
 754                 var self = $(this).data("resizable"), o = self.options;
 755                 if (self.ghost && self.helper) self.helper.get(0).removeChild(self.ghost.get(0));
 756         }
 757
 758 });
 759
 760 $.ui.plugin.add("resizable", "grid", {
 761
 762         resize: function(event, ui) {
 763                 var self = $(this).data("resizable"), o = self.options, cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || event.shiftKey;
 764                 o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
 765                 var ox = Math.round((cs.width - os.width) / (o.grid[0]||1)) * (o.grid[0]||1), oy = Math.round((cs.height - os.height) / (o.grid[1]||1)) * (o.grid[1]||1);
 766
 767                 if (/^(se|s|e)$/.test(a)) {
 768                         self.size.width = os.width + ox;
 769                         self.size.height = os.height + oy;
 770                 }
 771                 else if (/^(ne)$/.test(a)) {
 772                         self.size.width = os.width + ox;
 773                         self.size.height = os.height + oy;
 774                         self.position.top = op.top - oy;
 775                 }
 776                 else if (/^(sw)$/.test(a)) {
 777                         self.size.width = os.width + ox;
 778                         self.size.height = os.height + oy;
 779                         self.position.left = op.left - ox;
 780                 }
 781                 else {
 782                         self.size.width = os.width + ox;
 783                         self.size.height = os.height + oy;
 784                         self.position.top = op.top - oy;
 785                         self.position.left = op.left - ox;
 786                 }
 787         }
 788
 789 });
 790
 791 var num = function(v) {
 792         return parseInt(v, 10) || 0;
 793 };
 794
 795 var isNumber = function(value) {
 796         return !isNaN(parseInt(value, 10));
 797 };
 798
 799 })(jQuery);