js/jquery/src/jquery-ui/jquery.ui.resizable.js

   1 /*!
   2  * jQuery UI Resizable @VERSION
   3  * http://jqueryui.com
   4  *
   5  * Copyright 2012 jQuery Foundation and other contributors
   6  * Released under the MIT license.
   7  * http://jquery.org/license
   8  *
   9  * http://api.jqueryui.com/resizable/
  10  *
  11  * Depends:
  12  *      jquery.ui.core.js
  13  *      jquery.ui.mouse.js
  14  *      jquery.ui.widget.js
  15  */
  16 (function( $, undefined ) {
  17
  18 $.widget("ui.resizable", $.ui.mouse, {
  19         version: "@VERSION",
  20         widgetEventPrefix: "resize",
  21         options: {
  22                 alsoResize: false,
  23                 animate: false,
  24                 animateDuration: "slow",
  25                 animateEasing: "swing",
  26                 aspectRatio: false,
  27                 autoHide: false,
  28                 containment: false,
  29                 ghost: false,
  30                 grid: false,
  31                 handles: "e,s,se",
  32                 helper: false,
  33                 maxHeight: null,
  34                 maxWidth: null,
  35                 minHeight: 10,
  36                 minWidth: 10,
  37                 zIndex: 1000
  38         },
  39         _create: function() {
  40
  41                 var that = this, o = this.options;
  42                 this.element.addClass("ui-resizable");
  43
  44                 $.extend(this, {
  45                         _aspectRatio: !!(o.aspectRatio),
  46                         aspectRatio: o.aspectRatio,
  47                         originalElement: this.element,
  48                         _proportionallyResizeElements: [],
  49                         _helper: o.helper || o.ghost || o.animate ? o.helper || 'ui-resizable-helper' : null
  50                 });
  51
  52                 //Wrap the element if it cannot hold child nodes
  53                 if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) {
  54
  55                         //Create a wrapper element and set the wrapper to the new current internal element
  56                         this.element.wrap(
  57                                 $('<div class="ui-wrapper" style="overflow: hidden;"></div>').css({
  58                                         position: this.element.css('position'),
  59                                         width: this.element.outerWidth(),
  60                                         height: this.element.outerHeight(),
  61                                         top: this.element.css('top'),
  62                                         left: this.element.css('left')
  63                                 })
  64                         );
  65
  66                         //Overwrite the original this.element
  67                         this.element = this.element.parent().data(
  68                                 "resizable", this.element.data('resizable')
  69                         );
  70
  71                         this.elementIsWrapper = true;
  72
  73                         //Move margins to the wrapper
  74                         this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
  75                         this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
  76
  77                         //Prevent Safari textarea resize
  78                         this.originalResizeStyle = this.originalElement.css('resize');
  79                         this.originalElement.css('resize', 'none');
  80
  81                         //Push the actual element to our proportionallyResize internal array
  82                         this._proportionallyResizeElements.push(this.originalElement.css({ position: 'static', zoom: 1, display: 'block' }));
  83
  84                         // avoid IE jump (hard set the margin)
  85                         this.originalElement.css({ margin: this.originalElement.css('margin') });
  86
  87                         // fix handlers offset
  88                         this._proportionallyResize();
  89
  90                 }
  91
  92                 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' });
  93                 if(this.handles.constructor == String) {
  94
  95                         if(this.handles == 'all') this.handles = 'n,e,s,w,se,sw,ne,nw';
  96                         var n = this.handles.split(","); this.handles = {};
  97
  98                         for(var i = 0; i < n.length; i++) {
  99
 100                                 var handle = $.trim(n[i]), hname = 'ui-resizable-'+handle;
 101                                 var axis = $('<div class="ui-resizable-handle ' + hname + '"></div>');
 102
 103                                 // Apply zIndex to all handles - see #7960
 104                                 axis.css({ zIndex: o.zIndex });
 105
 106                                 //TODO : What's going on here?
 107                                 if ('se' == handle) {
 108                                         axis.addClass('ui-icon ui-icon-gripsmall-diagonal-se');
 109                                 };
 110
 111                                 //Insert into internal handles object and append to element
 112                                 this.handles[handle] = '.ui-resizable-'+handle;
 113                                 this.element.append(axis);
 114                         }
 115
 116                 }
 117
 118                 this._renderAxis = function(target) {
 119
 120                         target = target || this.element;
 121
 122                         for(var i in this.handles) {
 123
 124                                 if(this.handles[i].constructor == String)
 125                                         this.handles[i] = $(this.handles[i], this.element).show();
 126
 127                                 //Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
 128                                 if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) {
 129
 130                                         var axis = $(this.handles[i], this.element), padWrapper = 0;
 131
 132                                         //Checking the correct pad and border
 133                                         padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();
 134
 135                                         //The padding type i have to apply...
 136                                         var padPos = [ 'padding',
 137                                                 /ne|nw|n/.test(i) ? 'Top' :
 138                                                 /se|sw|s/.test(i) ? 'Bottom' :
 139                                                 /^e$/.test(i) ? 'Right' : 'Left' ].join("");
 140
 141                                         target.css(padPos, padWrapper);
 142
 143                                         this._proportionallyResize();
 144
 145                                 }
 146
 147                                 //TODO: What's that good for? There's not anything to be executed left
 148                                 if(!$(this.handles[i]).length)
 149                                         continue;
 150
 151                         }
 152                 };
 153
 154                 //TODO: make renderAxis a prototype function
 155                 this._renderAxis(this.element);
 156
 157                 this._handles = $('.ui-resizable-handle', this.element)
 158                         .disableSelection();
 159
 160                 //Matching axis name
 161                 this._handles.mouseover(function() {
 162                         if (!that.resizing) {
 163                                 if (this.className)
 164                                         var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
 165                                 //Axis, default = se
 166                                 that.axis = axis && axis[1] ? axis[1] : 'se';
 167                         }
 168                 });
 169
 170                 //If we want to auto hide the elements
 171                 if (o.autoHide) {
 172                         this._handles.hide();
 173                         $(this.element)
 174                                 .addClass("ui-resizable-autohide")
 175                                 .mouseenter(function() {
 176                                         if (o.disabled) return;
 177                                         $(this).removeClass("ui-resizable-autohide");
 178                                         that._handles.show();
 179                                 })
 180                                 .mouseleave(function(){
 181                                         if (o.disabled) return;
 182                                         if (!that.resizing) {
 183                                                 $(this).addClass("ui-resizable-autohide");
 184                                                 that._handles.hide();
 185                                         }
 186                                 });
 187                 }
 188
 189                 //Initialize the mouse interaction
 190                 this._mouseInit();
 191
 192         },
 193
 194         _destroy: function() {
 195
 196                 this._mouseDestroy();
 197
 198                 var _destroy = function(exp) {
 199                         $(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing")
 200                                 .removeData("resizable").removeData("ui-resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
 201                 };
 202
 203                 //TODO: Unwrap at same DOM position
 204                 if (this.elementIsWrapper) {
 205                         _destroy(this.element);
 206                         var wrapper = this.element;
 207                         this.originalElement.css({
 208                                 position: wrapper.css('position'),
 209                                 width: wrapper.outerWidth(),
 210                                 height: wrapper.outerHeight(),
 211                                 top: wrapper.css('top'),
 212                                 left: wrapper.css('left')
 213                         }).insertAfter( wrapper );
 214                         wrapper.remove();
 215                 }
 216
 217                 this.originalElement.css('resize', this.originalResizeStyle);
 218                 _destroy(this.originalElement);
 219
 220                 return this;
 221         },
 222
 223         _mouseCapture: function(event) {
 224                 var handle = false;
 225                 for (var i in this.handles) {
 226                         if ($(this.handles[i])[0] == event.target) {
 227                                 handle = true;
 228                         }
 229                 }
 230
 231                 return !this.options.disabled && handle;
 232         },
 233
 234         _mouseStart: function(event) {
 235
 236                 var o = this.options, iniPos = this.element.position(), el = this.element;
 237
 238                 this.resizing = true;
 239                 this.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };
 240
 241                 // bugfix for http://dev.jquery.com/ticket/1749
 242                 if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {
 243                         el.css({ position: 'absolute', top: iniPos.top, left: iniPos.left });
 244                 }
 245
 246                 this._renderProxy();
 247
 248                 var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));
 249
 250                 if (o.containment) {
 251                         curleft += $(o.containment).scrollLeft() || 0;
 252                         curtop += $(o.containment).scrollTop() || 0;
 253                 }
 254
 255                 //Store needed variables
 256                 this.offset = this.helper.offset();
 257                 this.position = { left: curleft, top: curtop };
 258                 this.size = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
 259                 this.originalSize = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
 260                 this.originalPosition = { left: curleft, top: curtop };
 261                 this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };
 262                 this.originalMousePosition = { left: event.pageX, top: event.pageY };
 263
 264                 //Aspect Ratio
 265                 this.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);
 266
 267                 var cursor = $('.ui-resizable-' + this.axis).css('cursor');
 268                 $('body').css('cursor', cursor == 'auto' ? this.axis + '-resize' : cursor);
 269
 270                 el.addClass("ui-resizable-resizing");
 271                 this._propagate("start", event);
 272                 return true;
 273         },
 274
 275         _mouseDrag: function(event) {
 276
 277                 //Increase performance, avoid regex
 278                 var el = this.helper, o = this.options, props = {},
 279                         that = this, smp = this.originalMousePosition, a = this.axis;
 280
 281                 var dx = (event.pageX-smp.left)||0, dy = (event.pageY-smp.top)||0;
 282                 var trigger = this._change[a];
 283                 if (!trigger) return false;
 284
 285                 // Calculate the attrs that will be change
 286                 var data = trigger.apply(this, [event, dx, dy]);
 287
 288                 // Put this in the mouseDrag handler since the user can start pressing shift while resizing
 289                 this._updateVirtualBoundaries(event.shiftKey);
 290                 if (this._aspectRatio || event.shiftKey)
 291                         data = this._updateRatio(data, event);
 292
 293                 data = this._respectSize(data, event);
 294
 295                 // plugins callbacks need to be called first
 296                 this._propagate("resize", event);
 297
 298                 el.css({
 299                         top: this.position.top + "px", left: this.position.left + "px",
 300                         width: this.size.width + "px", height: this.size.height + "px"
 301                 });
 302
 303                 if (!this._helper && this._proportionallyResizeElements.length)
 304                         this._proportionallyResize();
 305
 306                 this._updateCache(data);
 307
 308                 // calling the user callback at the end
 309                 this._trigger('resize', event, this.ui());
 310
 311                 return false;
 312         },
 313
 314         _mouseStop: function(event) {
 315
 316                 this.resizing = false;
 317                 var o = this.options, that = this;
 318
 319                 if(this._helper) {
 320                         var pr = this._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
 321                                 soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : that.sizeDiff.height,
 322                                 soffsetw = ista ? 0 : that.sizeDiff.width;
 323
 324                         var s = { width: (that.helper.width()  - soffsetw), height: (that.helper.height() - soffseth) },
 325                                 left = (parseInt(that.element.css('left'), 10) + (that.position.left - that.originalPosition.left)) || null,
 326                                 top = (parseInt(that.element.css('top'), 10) + (that.position.top - that.originalPosition.top)) || null;
 327
 328                         if (!o.animate)
 329                                 this.element.css($.extend(s, { top: top, left: left }));
 330
 331                         that.helper.height(that.size.height);
 332                         that.helper.width(that.size.width);
 333
 334                         if (this._helper && !o.animate) this._proportionallyResize();
 335                 }
 336
 337                 $('body').css('cursor', 'auto');
 338
 339                 this.element.removeClass("ui-resizable-resizing");
 340
 341                 this._propagate("stop", event);
 342
 343                 if (this._helper) this.helper.remove();
 344                 return false;
 345
 346         },
 347
 348         _updateVirtualBoundaries: function(forceAspectRatio) {
 349                 var o = this.options, pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b;
 350
 351                 b = {
 352                         minWidth: isNumber(o.minWidth) ? o.minWidth : 0,
 353                         maxWidth: isNumber(o.maxWidth) ? o.maxWidth : Infinity,
 354                         minHeight: isNumber(o.minHeight) ? o.minHeight : 0,
 355                         maxHeight: isNumber(o.maxHeight) ? o.maxHeight : Infinity
 356                 };
 357
 358                 if(this._aspectRatio || forceAspectRatio) {
 359                         // We want to create an enclosing box whose aspect ration is the requested one
 360                         // First, compute the "projected" size for each dimension based on the aspect ratio and other dimension
 361                         pMinWidth = b.minHeight * this.aspectRatio;
 362                         pMinHeight = b.minWidth / this.aspectRatio;
 363                         pMaxWidth = b.maxHeight * this.aspectRatio;
 364                         pMaxHeight = b.maxWidth / this.aspectRatio;
 365
 366                         if(pMinWidth > b.minWidth) b.minWidth = pMinWidth;
 367                         if(pMinHeight > b.minHeight) b.minHeight = pMinHeight;
 368                         if(pMaxWidth < b.maxWidth) b.maxWidth = pMaxWidth;
 369                         if(pMaxHeight < b.maxHeight) b.maxHeight = pMaxHeight;
 370                 }
 371                 this._vBoundaries = b;
 372         },
 373
 374         _updateCache: function(data) {
 375                 var o = this.options;
 376                 this.offset = this.helper.offset();
 377                 if (isNumber(data.left)) this.position.left = data.left;
 378                 if (isNumber(data.top)) this.position.top = data.top;
 379                 if (isNumber(data.height)) this.size.height = data.height;
 380                 if (isNumber(data.width)) this.size.width = data.width;
 381         },
 382
 383         _updateRatio: function(data, event) {
 384
 385                 var o = this.options, cpos = this.position, csize = this.size, a = this.axis;
 386
 387                 if (isNumber(data.height)) data.width = (data.height * this.aspectRatio);
 388                 else if (isNumber(data.width)) data.height = (data.width / this.aspectRatio);
 389
 390                 if (a == 'sw') {
 391                         data.left = cpos.left + (csize.width - data.width);
 392                         data.top = null;
 393                 }
 394                 if (a == 'nw') {
 395                         data.top = cpos.top + (csize.height - data.height);
 396                         data.left = cpos.left + (csize.width - data.width);
 397                 }
 398
 399                 return data;
 400         },
 401
 402         _respectSize: function(data, event) {
 403
 404                 var el = this.helper, o = this._vBoundaries, pRatio = this._aspectRatio || event.shiftKey, a = this.axis,
 405                                 ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
 406                                         isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(data.height) && o.minHeight && (o.minHeight > data.height);
 407
 408                 if (isminw) data.width = o.minWidth;
 409                 if (isminh) data.height = o.minHeight;
 410                 if (ismaxw) data.width = o.maxWidth;
 411                 if (ismaxh) data.height = o.maxHeight;
 412
 413                 var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;
 414                 var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);
 415
 416                 if (isminw && cw) data.left = dw - o.minWidth;
 417                 if (ismaxw && cw) data.left = dw - o.maxWidth;
 418                 if (isminh && ch)       data.top = dh - o.minHeight;
 419                 if (ismaxh && ch)       data.top = dh - o.maxHeight;
 420
 421                 // fixing jump error on top/left - bug #2330
 422                 var isNotwh = !data.width && !data.height;
 423                 if (isNotwh && !data.left && data.top) data.top = null;
 424                 else if (isNotwh && !data.top && data.left) data.left = null;
 425
 426                 return data;
 427         },
 428
 429         _proportionallyResize: function() {
 430
 431                 var o = this.options;
 432                 if (!this._proportionallyResizeElements.length) return;
 433                 var element = this.helper || this.element;
 434
 435                 for (var i=0; i < this._proportionallyResizeElements.length; i++) {
 436
 437                         var prel = this._proportionallyResizeElements[i];
 438
 439                         if (!this.borderDif) {
 440                                 var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],
 441                                         p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];
 442
 443                                 this.borderDif = $.map(b, function(v, i) {
 444                                         var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;
 445                                         return border + padding;
 446                                 });
 447                         }
 448
 449                         prel.css({
 450                                 height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0,
 451                                 width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0
 452                         });
 453
 454                 };
 455
 456         },
 457
 458         _renderProxy: function() {
 459
 460                 var el = this.element, o = this.options;
 461                 this.elementOffset = el.offset();
 462
 463                 if(this._helper) {
 464
 465                         this.helper = this.helper || $('<div style="overflow:hidden;"></div>');
 466
 467                         // fix ie6 offset TODO: This seems broken
 468                         var ie6offset = ($.ui.ie6 ? 1 : 0),
 469                         pxyoffset = ( $.ui.ie6 ? 2 : -1 );
 470
 471                         this.helper.addClass(this._helper).css({
 472                                 width: this.element.outerWidth() + pxyoffset,
 473                                 height: this.element.outerHeight() + pxyoffset,
 474                                 position: 'absolute',
 475                                 left: this.elementOffset.left - ie6offset +'px',
 476                                 top: this.elementOffset.top - ie6offset +'px',
 477                                 zIndex: ++o.zIndex //TODO: Don't modify option
 478                         });
 479
 480                         this.helper
 481                                 .appendTo("body")
 482                                 .disableSelection();
 483
 484                 } else {
 485                         this.helper = this.element;
 486                 }
 487
 488         },
 489
 490         _change: {
 491                 e: function(event, dx, dy) {
 492                         return { width: this.originalSize.width + dx };
 493                 },
 494                 w: function(event, dx, dy) {
 495                         var o = this.options, cs = this.originalSize, sp = this.originalPosition;
 496                         return { left: sp.left + dx, width: cs.width - dx };
 497                 },
 498                 n: function(event, dx, dy) {
 499                         var o = this.options, cs = this.originalSize, sp = this.originalPosition;
 500                         return { top: sp.top + dy, height: cs.height - dy };
 501                 },
 502                 s: function(event, dx, dy) {
 503                         return { height: this.originalSize.height + dy };
 504                 },
 505                 se: function(event, dx, dy) {
 506                         return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
 507                 },
 508                 sw: function(event, dx, dy) {
 509                         return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
 510                 },
 511                 ne: function(event, dx, dy) {
 512                         return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
 513                 },
 514                 nw: function(event, dx, dy) {
 515                         return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
 516                 }
 517         },
 518
 519         _propagate: function(n, event) {
 520                 $.ui.plugin.call(this, n, [event, this.ui()]);
 521                 (n != "resize" && this._trigger(n, event, this.ui()));
 522         },
 523
 524         plugins: {},
 525
 526         ui: function() {
 527                 return {
 528                         originalElement: this.originalElement,
 529                         element: this.element,
 530                         helper: this.helper,
 531                         position: this.position,
 532                         size: this.size,
 533                         originalSize: this.originalSize,
 534                         originalPosition: this.originalPosition
 535                 };
 536         }
 537
 538 });
 539
 540 /*
 541  * Resizable Extensions
 542  */
 543
 544 $.ui.plugin.add("resizable", "alsoResize", {
 545
 546         start: function (event, ui) {
 547                 var that = $(this).data("resizable"), o = that.options;
 548
 549                 var _store = function (exp) {
 550                         $(exp).each(function() {
 551                                 var el = $(this);
 552                                 el.data("resizable-alsoresize", {
 553                                         width: parseInt(el.width(), 10), height: parseInt(el.height(), 10),
 554                                         left: parseInt(el.css('left'), 10), top: parseInt(el.css('top'), 10)
 555                                 });
 556                         });
 557                 };
 558
 559                 if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
 560                         if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0]; _store(o.alsoResize); }
 561                         else { $.each(o.alsoResize, function (exp) { _store(exp); }); }
 562                 }else{
 563                         _store(o.alsoResize);
 564                 }
 565         },
 566
 567         resize: function (event, ui) {
 568                 var that = $(this).data("resizable"), o = that.options, os = that.originalSize, op = that.originalPosition;
 569
 570                 var delta = {
 571                         height: (that.size.height - os.height) || 0, width: (that.size.width - os.width) || 0,
 572                         top: (that.position.top - op.top) || 0, left: (that.position.left - op.left) || 0
 573                 },
 574
 575                 _alsoResize = function (exp, c) {
 576                         $(exp).each(function() {
 577                                 var el = $(this), start = $(this).data("resizable-alsoresize"), style = {},
 578                                         css = c && c.length ? c : el.parents(ui.originalElement[0]).length ? ['width', 'height'] : ['width', 'height', 'top', 'left'];
 579
 580                                 $.each(css, function (i, prop) {
 581                                         var sum = (start[prop]||0) + (delta[prop]||0);
 582                                         if (sum && sum >= 0)
 583                                                 style[prop] = sum || null;
 584                                 });
 585
 586                                 el.css(style);
 587                         });
 588                 };
 589
 590                 if (typeof(o.alsoResize) == 'object' && !o.alsoResize.nodeType) {
 591                         $.each(o.alsoResize, function (exp, c) { _alsoResize(exp, c); });
 592                 }else{
 593                         _alsoResize(o.alsoResize);
 594                 }
 595         },
 596
 597         stop: function (event, ui) {
 598                 $(this).removeData("resizable-alsoresize");
 599         }
 600 });
 601
 602 $.ui.plugin.add("resizable", "animate", {
 603
 604         stop: function(event, ui) {
 605                 var that = $(this).data("resizable"), o = that.options;
 606
 607                 var pr = that._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
 608                                         soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : that.sizeDiff.height,
 609                                                 soffsetw = ista ? 0 : that.sizeDiff.width;
 610
 611                 var style = { width: (that.size.width - soffsetw), height: (that.size.height - soffseth) },
 612                                         left = (parseInt(that.element.css('left'), 10) + (that.position.left - that.originalPosition.left)) || null,
 613                                                 top = (parseInt(that.element.css('top'), 10) + (that.position.top - that.originalPosition.top)) || null;
 614
 615                 that.element.animate(
 616                         $.extend(style, top && left ? { top: top, left: left } : {}), {
 617                                 duration: o.animateDuration,
 618                                 easing: o.animateEasing,
 619                                 step: function() {
 620
 621                                         var data = {
 622                                                 width: parseInt(that.element.css('width'), 10),
 623                                                 height: parseInt(that.element.css('height'), 10),
 624                                                 top: parseInt(that.element.css('top'), 10),
 625                                                 left: parseInt(that.element.css('left'), 10)
 626                                         };
 627
 628                                         if (pr && pr.length) $(pr[0]).css({ width: data.width, height: data.height });
 629
 630                                         // propagating resize, and updating values for each animation step
 631                                         that._updateCache(data);
 632                                         that._propagate("resize", event);
 633
 634                                 }
 635                         }
 636                 );
 637         }
 638
 639 });
 640
 641 $.ui.plugin.add("resizable", "containment", {
 642
 643         start: function(event, ui) {
 644                 var that = $(this).data("resizable"), o = that.options, el = that.element;
 645                 var oc = o.containment, ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
 646                 if (!ce) return;
 647
 648                 that.containerElement = $(ce);
 649
 650                 if (/document/.test(oc) || oc == document) {
 651                         that.containerOffset = { left: 0, top: 0 };
 652                         that.containerPosition = { left: 0, top: 0 };
 653
 654                         that.parentData = {
 655                                 element: $(document), left: 0, top: 0,
 656                                 width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight
 657                         };
 658                 }
 659
 660                 // i'm a node, so compute top, left, right, bottom
 661                 else {
 662                         var element = $(ce), p = [];
 663                         $([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); });
 664
 665                         that.containerOffset = element.offset();
 666                         that.containerPosition = element.position();
 667                         that.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) };
 668
 669                         var co = that.containerOffset, ch = that.containerSize.height,  cw = that.containerSize.width,
 670                                                 width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw ), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);
 671
 672                         that.parentData = {
 673                                 element: ce, left: co.left, top: co.top, width: width, height: height
 674                         };
 675                 }
 676         },
 677
 678         resize: function(event, ui) {
 679                 var that = $(this).data("resizable"), o = that.options,
 680                                 ps = that.containerSize, co = that.containerOffset, cs = that.size, cp = that.position,
 681                                 pRatio = that._aspectRatio || event.shiftKey, cop = { top:0, left:0 }, ce = that.containerElement;
 682
 683                 if (ce[0] != document && (/static/).test(ce.css('position'))) cop = co;
 684
 685                 if (cp.left < (that._helper ? co.left : 0)) {
 686                         that.size.width = that.size.width + (that._helper ? (that.position.left - co.left) : (that.position.left - cop.left));
 687                         if (pRatio) that.size.height = that.size.width / that.aspectRatio;
 688                         that.position.left = o.helper ? co.left : 0;
 689                 }
 690
 691                 if (cp.top < (that._helper ? co.top : 0)) {
 692                         that.size.height = that.size.height + (that._helper ? (that.position.top - co.top) : that.position.top);
 693                         if (pRatio) that.size.width = that.size.height * that.aspectRatio;
 694                         that.position.top = that._helper ? co.top : 0;
 695                 }
 696
 697                 that.offset.left = that.parentData.left+that.position.left;
 698                 that.offset.top = that.parentData.top+that.position.top;
 699
 700                 var woset = Math.abs( (that._helper ? that.offset.left - cop.left : (that.offset.left - cop.left)) + that.sizeDiff.width ),
 701                                         hoset = Math.abs( (that._helper ? that.offset.top - cop.top : (that.offset.top - co.top)) + that.sizeDiff.height );
 702
 703                 var isParent = that.containerElement.get(0) == that.element.parent().get(0),
 704                         isOffsetRelative = /relative|absolute/.test(that.containerElement.css('position'));
 705
 706                 if(isParent && isOffsetRelative) woset -= that.parentData.left;
 707
 708                 if (woset + that.size.width >= that.parentData.width) {
 709                         that.size.width = that.parentData.width - woset;
 710                         if (pRatio) that.size.height = that.size.width / that.aspectRatio;
 711                 }
 712
 713                 if (hoset + that.size.height >= that.parentData.height) {
 714                         that.size.height = that.parentData.height - hoset;
 715                         if (pRatio) that.size.width = that.size.height * that.aspectRatio;
 716                 }
 717         },
 718
 719         stop: function(event, ui){
 720                 var that = $(this).data("resizable"), o = that.options, cp = that.position,
 721                                 co = that.containerOffset, cop = that.containerPosition, ce = that.containerElement;
 722
 723                 var helper = $(that.helper), ho = helper.offset(), w = helper.outerWidth() - that.sizeDiff.width, h = helper.outerHeight() - that.sizeDiff.height;
 724
 725                 if (that._helper && !o.animate && (/relative/).test(ce.css('position')))
 726                         $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
 727
 728                 if (that._helper && !o.animate && (/static/).test(ce.css('position')))
 729                         $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
 730
 731         }
 732 });
 733
 734 $.ui.plugin.add("resizable", "ghost", {
 735
 736         start: function(event, ui) {
 737
 738                 var that = $(this).data("resizable"), o = that.options, cs = that.size;
 739
 740                 that.ghost = that.originalElement.clone();
 741                 that.ghost
 742                         .css({ opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 })
 743                         .addClass('ui-resizable-ghost')
 744                         .addClass(typeof o.ghost == 'string' ? o.ghost : '');
 745
 746                 that.ghost.appendTo(that.helper);
 747
 748         },
 749
 750         resize: function(event, ui){
 751                 var that = $(this).data("resizable"), o = that.options;
 752                 if (that.ghost) that.ghost.css({ position: 'relative', height: that.size.height, width: that.size.width });
 753         },
 754
 755         stop: function(event, ui){
 756                 var that = $(this).data("resizable"), o = that.options;
 757                 if (that.ghost && that.helper) that.helper.get(0).removeChild(that.ghost.get(0));
 758         }
 759
 760 });
 761
 762 $.ui.plugin.add("resizable", "grid", {
 763
 764         resize: function(event, ui) {
 765                 var that = $(this).data("resizable"), o = that.options, cs = that.size, os = that.originalSize, op = that.originalPosition, a = that.axis, ratio = o._aspectRatio || event.shiftKey;
 766                 o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
 767                 var ox = Math.round((cs.width - os.width) / (o.grid[0]||1)) * (o.grid[0]||1), oy = Math.round((cs.height - os.height) / (o.grid[1]||1)) * (o.grid[1]||1);
 768
 769                 if (/^(se|s|e)$/.test(a)) {
 770                         that.size.width = os.width + ox;
 771                         that.size.height = os.height + oy;
 772                 }
 773                 else if (/^(ne)$/.test(a)) {
 774                         that.size.width = os.width + ox;
 775                         that.size.height = os.height + oy;
 776                         that.position.top = op.top - oy;
 777                 }
 778                 else if (/^(sw)$/.test(a)) {
 779                         that.size.width = os.width + ox;
 780                         that.size.height = os.height + oy;
 781                         that.position.left = op.left - ox;
 782                 }
 783                 else {
 784                         that.size.width = os.width + ox;
 785                         that.size.height = os.height + oy;
 786                         that.position.top = op.top - oy;
 787                         that.position.left = op.left - ox;
 788                 }
 789         }
 790
 791 });
 792
 793 var num = function(v) {
 794         return parseInt(v, 10) || 0;
 795 };
 796
 797 var isNumber = function(value) {
 798         return !isNaN(parseInt(value, 10));
 799 };
 800
 801 })(jQuery);