ecomp-portal-FE/client/bower_components_external/angular-att-gridster/angular-gridster.js

   1 /*global define:true*/
   2 (function(root, factory) {
   3
   4         'use strict';
   5
   6         if (typeof define === 'function' && define.amd) {
   7                 // AMD
   8                 define(['../angular/angular'], factory);
   9         } else if (typeof exports === 'object') {
  10                 // CommonJS
  11                 module.exports = factory(require('angular'));
  12         } else {
  13                 // Browser, nothing "exported". Only registered as a module with angular.
  14                 factory(root.angular);
  15         }
  16 }(this, function(angular) {
  17
  18         'use strict';
  19
  20         var ie8 = false;
  21
  22         var getInternetExplorerVersion = function()
  23         // Returns the version of Internet Explorer or a -1
  24         // (indicating the use of another browser).
  25         {
  26             var rv = -1; // Return value assumes failure.
  27             if (navigator.appName == 'Microsoft Internet Explorer')
  28             {
  29                 var ua = navigator.userAgent;
  30                 var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
  31                 if (re.exec(ua) != null)
  32                     rv = parseFloat(RegExp.$1);
  33             }
  34             return rv;
  35         };
  36
  37         var ver = getInternetExplorerVersion();
  38
  39         if ( ver > -1 && ver===8.0){
  40             ie8 = true;
  41         }
  42
  43         // This returned angular module 'gridster' is what is exported.
  44         return angular.module('attGridsterLib', [])
  45
  46         .constant('gridsterConfig', {
  47                 columns: 6, // number of columns in the grid
  48                 pushing: true, // whether to push other items out of the way
  49                 floating: true, // whether to automatically float items up so they stack
  50                 swapping: true, // whether or not to have items switch places instead of push down if they are the same size
  51                 width: 'auto', // width of the grid. "auto" will expand the grid to its parent container
  52                 colWidth: 'auto', // width of grid columns. "auto" will divide the width of the grid evenly among the columns
  53                 rowHeight: 'match', // height of grid rows. 'match' will make it the same as the column width, a numeric value will be interpreted as pixels, '/2' is half the column width, '*5' is five times the column width, etc.
  54                 margins: [10, 10], // margins in between grid items
  55                 outerMargin: false,
  56                 isMobile: false, // toggle mobile view
  57                 mobileBreakPoint: 100, // width threshold to toggle mobile mode
  58                 mobileModeEnabled: true, // whether or not to toggle mobile mode when screen width is less than mobileBreakPoint
  59                 minColumns: 1, // minimum amount of columns the grid can scale down to
  60                 minRows: 1, // minimum amount of rows to show if the grid is empty
  61                 maxRows: 100, // maximum amount of rows in the grid
  62                 defaultSizeX: 1, // default width of an item in columns
  63                 defaultSizeY: 1, // default height of an item in rows
  64                 minSizeX: 1, // minimum column width of an item
  65                 maxSizeX: null, // maximum column width of an item
  66                 minSizeY: 1, // minumum row height of an item
  67                 maxSizeY: null, // maximum row height of an item
  68                 saveGridItemCalculatedHeightInMobile: false, // grid item height in mobile display. true- to use the calculated height by sizeY given
  69                 resizable: { // options to pass to resizable handler
  70                         enabled: false,
  71                         handles: ['s', 'e', 'n', 'w', 'se', 'ne', 'sw', 'nw']
  72                 },
  73                 draggable: { // options to pass to draggable handler
  74                         enabled: true,
  75                         scrollSensitivity: 20, // Distance in pixels from the edge of the viewport after which the viewport should scroll, relative to pointer
  76                         scrollSpeed: 15 // Speed at which the window should scroll once the mouse pointer gets within scrollSensitivity distance
  77                 }
  78         })
  79
  80         .controller('GridsterCtrl', ['gridsterConfig', '$timeout',
  81                 function(gridsterConfig, $timeout) {
  82
  83                         var gridster = this;
  84
  85                         /**
  86                          * Create options from gridsterConfig constant
  87                          */
  88                         angular.extend(this, gridsterConfig);
  89
  90                         this.resizable = angular.extend({}, gridsterConfig.resizable || {});
  91                         this.draggable = angular.extend({}, gridsterConfig.draggable || {});
  92
  93                         var flag = false;
  94                         this.layoutChanged = function() {
  95                                 if (flag) {
  96                                         return;
  97                                 }
  98                                 flag = true;
  99                                 $timeout(function() {
 100                                         flag = false;
 101                                         if (gridster.loaded) {
 102                                                 gridster.floatItemsUp();
 103                                         }
 104                                         gridster.updateHeight(gridster.movingItem ? gridster.movingItem.sizeY : 0);
 105                                 }, 30);
 106                         };
 107
 108                         /**
 109                          * A positional array of the items in the grid
 110                          */
 111                         this.grid = [];
 112
 113                         /**
 114                          * Clean up after yourself
 115                          */
 116                         this.destroy = function() {
 117                                 // empty the grid to cut back on the possibility
 118                                 // of circular references
 119                                 if (this.grid) {
 120                                         this.grid = [];
 121                                 }
 122                                 this.$element = null;
 123                         };
 124
 125                         /**
 126                          * Overrides default options
 127                          *
 128                          * @param {Object} options The options to override
 129                          */
 130                         this.setOptions = function(options) {
 131                                 if (!options) {
 132                                         return;
 133                                 }
 134
 135                                 options = angular.extend({}, options);
 136
 137                                 // all this to avoid using jQuery...
 138                                 if (options.draggable) {
 139                                         angular.extend(this.draggable, options.draggable);
 140                                         delete(options.draggable);
 141                                 }
 142                                 if (options.resizable) {
 143                                         angular.extend(this.resizable, options.resizable);
 144                                         delete(options.resizable);
 145                                 }
 146
 147                                 angular.extend(this, options);
 148
 149                                 if (!this.margins || this.margins.length !== 2) {
 150                                         this.margins = [0, 0];
 151                                 } else {
 152                                         for (var x = 0, l = this.margins.length; x < l; ++x) {
 153                                                 this.margins[x] = parseInt(this.margins[x], 10);
 154                                                 if (isNaN(this.margins[x])) {
 155                                                         this.margins[x] = 0;
 156                                                 }
 157                                         }
 158                                 }
 159                         };
 160
 161                         /**
 162                          * Check if item can occupy a specified position in the grid
 163                          *
 164                          * @param {Object} item The item in question
 165                          * @param {Number} row The row index
 166                          * @param {Number} column The column index
 167                          * @returns {Boolean} True if if item fits
 168                          */
 169                         this.canItemOccupy = function(item, row, column) {
 170                                 return row > -1 && column > -1 && item.sizeX + column <= this.columns && item.sizeY + row <= this.maxRows;
 171                         };
 172
 173                         /**
 174                          * Set the item in the first suitable position
 175                          *
 176                          * @param {Object} item The item to insert
 177                          */
 178                         this.autoSetItemPosition = function(item) {
 179                                 // walk through each row and column looking for a place it will fit
 180                                 for (var rowIndex = 0; rowIndex < this.maxRows; ++rowIndex) {
 181                                         for (var colIndex = 0; colIndex < this.columns; ++colIndex) {
 182                                                 // only insert if position is not already taken and it can fit
 183                                                 var items = this.getItems(rowIndex, colIndex, item.sizeX, item.sizeY, item);
 184                                                 if (items.length === 0 && this.canItemOccupy(item, rowIndex, colIndex)) {
 185                                                         this.putItem(item, rowIndex, colIndex);
 186                                                         return;
 187                                                 }
 188                                         }
 189                                 }
 190                                 throw new Error('Unable to place item!');
 191                         };
 192
 193                         /**
 194                          * Gets items at a specific coordinate
 195                          *
 196                          * @param {Number} row
 197                          * @param {Number} column
 198                          * @param {Number} sizeX
 199                          * @param {Number} sizeY
 200                          * @param {Array} excludeItems An array of items to exclude from selection
 201                          * @returns {Array} Items that match the criteria
 202                          */
 203                         this.getItems = function(row, column, sizeX, sizeY, excludeItems) {
 204                                 var items = [];
 205                                 if (!sizeX || !sizeY) {
 206                                         sizeX = sizeY = 1;
 207                                 }
 208                                 if (excludeItems && !(excludeItems instanceof Array)) {
 209                                         excludeItems = [excludeItems];
 210                                 }
 211                                 for (var h = 0; h < sizeY; ++h) {
 212                                         for (var w = 0; w < sizeX; ++w) {
 213                                                 var item = this.getItem(row + h, column + w, excludeItems);
 214                                                 if (item && (!excludeItems || excludeItems.indexOf(item) === -1) && items.indexOf(item) === -1) {
 215                                                         items.push(item);
 216                                                 }
 217                                         }
 218                                 }
 219                                 return items;
 220                         };
 221
 222                         /**
 223                          * @param {Array} items
 224                          * @returns {Object} An item that represents the bounding box of the items
 225                          */
 226                         this.getBoundingBox = function(items) {
 227
 228                                 if (items.length === 0) {
 229                                         return null;
 230                                 }
 231                                 if (items.length === 1) {
 232                                         return {
 233                                                 row: items[0].row,
 234                                                 col: items[0].col,
 235                                                 sizeY: items[0].sizeY,
 236                                                 sizeX: items[0].sizeX
 237                                         };
 238                                 }
 239
 240                                 var maxRow = 0;
 241                                 var maxCol = 0;
 242                                 var minRow = 9999;
 243                                 var minCol = 9999;
 244
 245                                 for (var i = 0, l = items.length; i < l; ++i) {
 246                                         var item = items[i];
 247                                         minRow = Math.min(item.row, minRow);
 248                                         minCol = Math.min(item.col, minCol);
 249                                         maxRow = Math.max(item.row + item.sizeY, maxRow);
 250                                         maxCol = Math.max(item.col + item.sizeX, maxCol);
 251                                 }
 252
 253                                 return {
 254                                         row: minRow,
 255                                         col: minCol,
 256                                         sizeY: maxRow - minRow,
 257                                         sizeX: maxCol - minCol
 258                                 };
 259                         };
 260
 261
 262                         /**
 263                          * Removes an item from the grid
 264                          *
 265                          * @param {Object} item
 266                          */
 267                         this.removeItem = function(item) {
 268                                 for (var rowIndex = 0, l = this.grid.length; rowIndex < l; ++rowIndex) {
 269                                         var columns = this.grid[rowIndex];
 270                                         if (!columns) {
 271                                                 continue;
 272                                         }
 273                                         var index = columns.indexOf(item);
 274                                         if (index !== -1) {
 275                                                 columns[index] = null;
 276                                                 break;
 277                                         }
 278                                 }
 279                                 this.layoutChanged();
 280                         };
 281
 282                         /**
 283                          * Returns the item at a specified coordinate
 284                          *
 285                          * @param {Number} row
 286                          * @param {Number} column
 287                          * @param {Array} excludeItems Items to exclude from selection
 288                          * @returns {Object} The matched item or null
 289                          */
 290                         this.getItem = function(row, column, excludeItems) {
 291                                 if (excludeItems && !(excludeItems instanceof Array)) {
 292                                         excludeItems = [excludeItems];
 293                                 }
 294                                 var sizeY = 1;
 295                                 while (row > -1) {
 296                                         var sizeX = 1,
 297                                                 col = column;
 298                                         while (col > -1) {
 299                                                 var items = this.grid[row];
 300                                                 if (items) {
 301                                                         var item = items[col];
 302                                                         if (item && (!excludeItems || excludeItems.indexOf(item) === -1) && item.sizeX >= sizeX && item.sizeY >= sizeY) {
 303                                                                 return item;
 304                                                         }
 305                                                 }
 306                                                 ++sizeX;
 307                                                 --col;
 308                                         }
 309                                         --row;
 310                                         ++sizeY;
 311                                 }
 312                                 return null;
 313                         };
 314
 315                         /**
 316                          * Insert an array of items into the grid
 317                          *
 318                          * @param {Array} items An array of items to insert
 319                          */
 320                         this.putItems = function(items) {
 321                                 for (var i = 0, l = items.length; i < l; ++i) {
 322                                         this.putItem(items[i]);
 323                                 }
 324                         };
 325
 326                         /**
 327                          * Insert a single item into the grid
 328                          *
 329                          * @param {Object} item The item to insert
 330                          * @param {Number} row (Optional) Specifies the items row index
 331                          * @param {Number} column (Optional) Specifies the items column index
 332                          * @param {Array} ignoreItems
 333                          */
 334                         this.putItem = function(item, row, column, ignoreItems) {
 335                                 // auto place item if no row specified
 336                                 if (typeof row === 'undefined' || row === null) {
 337                                         row = item.row;
 338                                         column = item.col;
 339                                         if (typeof row === 'undefined' || row === null) {
 340                                                 this.autoSetItemPosition(item);
 341                                                 return;
 342                                         }
 343                                 }
 344
 345                                 // keep item within allowed bounds
 346                                 if (!this.canItemOccupy(item, row, column)) {
 347                                         column = Math.min(this.columns - item.sizeX, Math.max(0, column));
 348                                         row = Math.min(this.maxRows - item.sizeY, Math.max(0, row));
 349                                 }
 350
 351                                 // check if item is already in grid
 352                                 if (item.oldRow !== null && typeof item.oldRow !== 'undefined') {
 353                                         var samePosition = item.oldRow === row && item.oldColumn === column;
 354                                         var inGrid = this.grid[row] && this.grid[row][column] === item;
 355                                         if (samePosition && inGrid) {
 356                                                 item.row = row;
 357                                                 item.col = column;
 358                                                 return;
 359                                         } else {
 360                                                 // remove from old position
 361                                                 var oldRow = this.grid[item.oldRow];
 362                                                 if (oldRow && oldRow[item.oldColumn] === item) {
 363                                                         delete oldRow[item.oldColumn];
 364                                                 }
 365                                         }
 366                                 }
 367
 368                                 item.oldRow = item.row = row;
 369                                 item.oldColumn = item.col = column;
 370
 371                                 this.moveOverlappingItems(item, ignoreItems);
 372
 373                                 if (!this.grid[row]) {
 374                                         this.grid[row] = [];
 375                                 }
 376                                 this.grid[row][column] = item;
 377
 378                                 if (this.movingItem === item) {
 379                                         this.floatItemUp(item);
 380                                 }
 381                                 this.layoutChanged();
 382                         };
 383
 384                         /**
 385                          * Trade row and column if item1 with item2
 386                          *
 387                          * @param {Object} item1
 388                          * @param {Object} item2
 389                          */
 390                         this.swapItems = function(item1, item2) {
 391                                 this.grid[item1.row][item1.col] = item2;
 392                                 this.grid[item2.row][item2.col] = item1;
 393
 394                                 var item1Row = item1.row;
 395                                 var item1Col = item1.col;
 396                                 item1.row = item2.row;
 397                                 item1.col = item2.col;
 398                                 item2.row = item1Row;
 399                                 item2.col = item1Col;
 400                         };
 401
 402                         /**
 403                          * Prevents items from being overlapped
 404                          *
 405                          * @param {Object} item The item that should remain
 406                          * @param {Array} ignoreItems
 407                          */
 408                         this.moveOverlappingItems = function(item, ignoreItems) {
 409                                 // don't move item, so ignore it
 410                                 if (!ignoreItems) {
 411                                         ignoreItems = [item];
 412                                 } else if (ignoreItems.indexOf(item) === -1) {
 413                                         ignoreItems = ignoreItems.slice(0);
 414                                         ignoreItems.push(item);
 415                                 }
 416
 417                                 // get the items in the space occupied by the item's coordinates
 418                                 var overlappingItems = this.getItems(
 419                                         item.row,
 420                                         item.col,
 421                                         item.sizeX,
 422                                         item.sizeY,
 423                                         ignoreItems
 424                                 );
 425                                 this.moveItemsDown(overlappingItems, item.row + item.sizeY, ignoreItems);
 426                         };
 427
 428                         /**
 429                          * Moves an array of items to a specified row
 430                          *
 431                          * @param {Array} items The items to move
 432                          * @param {Number} newRow The target row
 433                          * @param {Array} ignoreItems
 434                          */
 435                         this.moveItemsDown = function(items, newRow, ignoreItems) {
 436                                 if (!items || items.length === 0) {
 437                                         return;
 438                                 }
 439                                 items.sort(function(a, b) {
 440                                         return a.row - b.row;
 441                                 });
 442
 443                                 ignoreItems = ignoreItems ? ignoreItems.slice(0) : [];
 444                                 var topRows = {},
 445                                         item, i, l;
 446
 447                                 // calculate the top rows in each column
 448                                 for (i = 0, l = items.length; i < l; ++i) {
 449                                         item = items[i];
 450                                         var topRow = topRows[item.col];
 451                                         if (typeof topRow === 'undefined' || item.row < topRow) {
 452                                                 topRows[item.col] = item.row;
 453                                         }
 454                                 }
 455
 456                                 // move each item down from the top row in its column to the row
 457                                 for (i = 0, l = items.length; i < l; ++i) {
 458                                         item = items[i];
 459                                         var rowsToMove = newRow - topRows[item.col];
 460                                         this.moveItemDown(item, item.row + rowsToMove, ignoreItems);
 461                                         ignoreItems.push(item);
 462                                 }
 463                         };
 464
 465                         /**
 466                          * Moves an item down to a specified row
 467                          *
 468                          * @param {Object} item The item to move
 469                          * @param {Number} newRow The target row
 470                          * @param {Array} ignoreItems
 471                          */
 472                         this.moveItemDown = function(item, newRow, ignoreItems) {
 473                                 if (item.row >= newRow) {
 474                                         return;
 475                                 }
 476                                 while (item.row < newRow) {
 477                                         ++item.row;
 478                                         this.moveOverlappingItems(item, ignoreItems);
 479                                 }
 480                                 this.putItem(item, item.row, item.col, ignoreItems);
 481                         };
 482
 483                         /**
 484                          * Moves all items up as much as possible
 485                          */
 486                         this.floatItemsUp = function() {
 487                                 if (this.floating === false) {
 488                                         return;
 489                                 }
 490                                 for (var rowIndex = 0, l = this.grid.length; rowIndex < l; ++rowIndex) {
 491                                         var columns = this.grid[rowIndex];
 492                                         if (!columns) {
 493                                                 continue;
 494                                         }
 495                                         for (var colIndex = 0, len = columns.length; colIndex < len; ++colIndex) {
 496                                                 var item = columns[colIndex];
 497                                                 if (item) {
 498                                                         this.floatItemUp(item);
 499                                                 }
 500                                         }
 501                                 }
 502                         };
 503
 504                         /**
 505                          * Float an item up to the most suitable row
 506                          *
 507                          * @param {Object} item The item to move
 508                          */
 509                         this.floatItemUp = function(item) {
 510                                 if (this.floating === false) {
 511                                         return;
 512                                 }
 513                                 var colIndex = item.col,
 514                                         sizeY = item.sizeY,
 515                                         sizeX = item.sizeX,
 516                                         bestRow = null,
 517                                         bestColumn = null,
 518                                         rowIndex = item.row - 1;
 519
 520                                 while (rowIndex > -1) {
 521                                         var items = this.getItems(rowIndex, colIndex, sizeX, sizeY, item);
 522                                         if (items.length !== 0) {
 523                                                 break;
 524                                         }
 525                                         bestRow = rowIndex;
 526                                         bestColumn = colIndex;
 527                                         --rowIndex;
 528                                 }
 529                                 if (bestRow !== null) {
 530                                         this.putItem(item, bestRow, bestColumn);
 531                                 }
 532                         };
 533
 534                         /**
 535                          * Update gridsters height
 536                          *
 537                          * @param {Number} plus (Optional) Additional height to add
 538                          */
 539                         this.updateHeight = function(plus) {
 540                                 var maxHeight = this.minRows;
 541                                 plus = plus || 0;
 542                                 for (var rowIndex = this.grid.length; rowIndex >= 0; --rowIndex) {
 543                                         var columns = this.grid[rowIndex];
 544                                         if (!columns) {
 545                                                 continue;
 546                                         }
 547                                         for (var colIndex = 0, len = columns.length; colIndex < len; ++colIndex) {
 548                                                 if (columns[colIndex]) {
 549                                                         maxHeight = Math.max(maxHeight, rowIndex + plus + columns[colIndex].sizeY);
 550                                                 }
 551                                         }
 552                                 }
 553                                 this.gridHeight = this.maxRows - maxHeight > 0 ? Math.min(this.maxRows, maxHeight) : Math.max(this.maxRows, maxHeight);
 554                         };
 555
 556                         /**
 557                          * Returns the number of rows that will fit in given amount of pixels
 558                          *
 559                          * @param {Number} pixels
 560                          * @param {Boolean} ceilOrFloor (Optional) Determines rounding method
 561                          */
 562                         this.pixelsToRows = function(pixels, ceilOrFloor) {
 563                                 if (ceilOrFloor === true) {
 564                                         return Math.ceil(pixels / this.curRowHeight);
 565                                 } else if (ceilOrFloor === false) {
 566                                         return Math.floor(pixels / this.curRowHeight);
 567                                 }
 568
 569                                 return Math.round(pixels / this.curRowHeight);
 570                         };
 571
 572                         /**
 573                          * Returns the number of columns that will fit in a given amount of pixels
 574                          *
 575                          * @param {Number} pixels
 576                          * @param {Boolean} ceilOrFloor (Optional) Determines rounding method
 577                          * @returns {Number} The number of columns
 578                          */
 579                         this.pixelsToColumns = function(pixels, ceilOrFloor) {
 580                                 if (ceilOrFloor === true) {
 581                                         return Math.ceil(pixels / this.curColWidth);
 582                                 } else if (ceilOrFloor === false) {
 583                                         return Math.floor(pixels / this.curColWidth);
 584                                 }
 585
 586                                 return Math.round(pixels / this.curColWidth);
 587                         };
 588                 }
 589         ])
 590
 591         .directive('gridsterPreview', function() {
 592                 return {
 593                         replace: true,
 594                         scope: true,
 595                         require: '^gridster',
 596                         template: '<div ng-style="previewStyle()" class="gridster-item gridster-preview-holder"></div>',
 597                         link: function(scope, $el, attrs, gridster) {
 598
 599                                 /**
 600                                  * @returns {Object} style object for preview element
 601                                  */
 602                                 scope.previewStyle = function() {
 603
 604                                         if (!gridster.movingItem) {
 605                                                 return {
 606                                                         display: 'none'
 607                                                 };
 608                                         }
 609
 610                                         return {
 611                                                 display: 'block',
 612                                                 height: (gridster.movingItem.sizeY * gridster.curRowHeight - gridster.margins[0]) + 'px',
 613                                                 width: (gridster.movingItem.sizeX * gridster.curColWidth - gridster.margins[1]) + 'px',
 614                                                 top: (gridster.movingItem.row * gridster.curRowHeight + (gridster.outerMargin ? gridster.margins[0] : 0)) + 'px',
 615                                                 left: (gridster.movingItem.col * gridster.curColWidth + (gridster.outerMargin ? gridster.margins[1] : 0)) + 'px'
 616                                         };
 617                                 };
 618                         }
 619                 };
 620         })
 621
 622         /**
 623          * The gridster directive
 624          *
 625          * @param {Function} $timeout
 626          * @param {Object} $window
 627          * @param {Object} $rootScope
 628          * @param {Function} gridsterDebounce
 629          */
 630         .directive('gridster', ['$timeout', '$window', '$rootScope', 'gridsterDebounce',
 631                 function($timeout, $window, $rootScope, gridsterDebounce) {
 632                         return {
 633                                 scope: true,
 634                                 restrict: 'EAC',
 635                                 controller: 'GridsterCtrl',
 636                                 controllerAs: 'gridster',
 637                                 compile: function($tplElem) {
 638
 639                                         $tplElem.prepend('<div ng-if="gridster.movingItem" gridster-preview></div>');
 640
 641                                         return function(scope, $elem, attrs, gridster) {
 642                                                 gridster.loaded = false;
 643
 644                                                 gridster.$element = $elem;
 645
 646                                                 scope.gridster = gridster;
 647
 648                                                 $elem.addClass('gridster');
 649
 650                                                 var isVisible = function(ele) {
 651                                                         return ele.style.visibility !== 'hidden' && ele.style.display !== 'none';
 652                                                 };
 653
 654                                                 function refresh(config) {
 655                                                         gridster.setOptions(config);
 656
 657                                                         if (!isVisible($elem[0])) {
 658                                                                 return;
 659                                                         }
 660
 661                                                         // resolve "auto" & "match" values
 662                                                         if (gridster.width === 'auto') {
 663                                                                 gridster.curWidth = $elem[0].offsetWidth || parseInt($elem.css('width'), 10);
 664                                                         } else {
 665                                                                 gridster.curWidth = gridster.width;
 666                                                         }
 667
 668                                                         if (gridster.colWidth === 'auto') {
 669                                                                 gridster.curColWidth = (gridster.curWidth + (gridster.outerMargin ? -gridster.margins[1] : gridster.margins[1])) / gridster.columns;
 670                                                         } else {
 671                                                                 gridster.curColWidth = gridster.colWidth;
 672                                                         }
 673
 674                                                         gridster.curRowHeight = gridster.rowHeight;
 675                                                         if (typeof gridster.rowHeight === 'string') {
 676                                                                 if (gridster.rowHeight === 'match') {
 677                                                                         gridster.curRowHeight = Math.round(gridster.curColWidth);
 678                                                                 } else if (gridster.rowHeight.indexOf('*') !== -1) {
 679                                                                         gridster.curRowHeight = Math.round(gridster.curColWidth * gridster.rowHeight.replace('*', '').replace(' ', ''));
 680                                                                 } else if (gridster.rowHeight.indexOf('/') !== -1) {
 681                                                                         gridster.curRowHeight = Math.round(gridster.curColWidth / gridster.rowHeight.replace('/', '').replace(' ', ''));
 682                                                                 }
 683                                                         }
 684
 685                                                         gridster.isMobile = gridster.mobileModeEnabled && gridster.curWidth <= gridster.mobileBreakPoint;
 686
 687                                                         // loop through all items and reset their CSS
 688                                                         for (var rowIndex = 0, l = gridster.grid.length; rowIndex < l; ++rowIndex) {
 689                                                                 var columns = gridster.grid[rowIndex];
 690                                                                 if (!columns) {
 691                                                                         continue;
 692                                                                 }
 693
 694                                                                 for (var colIndex = 0, len = columns.length; colIndex < len; ++colIndex) {
 695                                                                         if (columns[colIndex]) {
 696                                                                                 var item = columns[colIndex];
 697                                                                                 item.setElementPosition();
 698                                                                                 item.setElementSizeY();
 699                                                                                 item.setElementSizeX();
 700                                                                         }
 701                                                                 }
 702                                                         }
 703
 704                                                         updateHeight();
 705                                                 }
 706
 707                                                 var optionsKey = attrs.gridster;
 708                                                 if (optionsKey) {
 709                                                         scope.$parent.$watch(optionsKey, function(newConfig) {
 710                                                                 refresh(newConfig);
 711                                                         }, true);
 712                                                 } else {
 713                                                         refresh({});
 714                                                 }
 715
 716                                                 scope.$watch(function() {
 717                                                         return gridster.loaded;
 718                                                 }, function() {
 719                                                         if (gridster.loaded) {
 720                                                                 $elem.addClass('gridster-loaded');
 721                                                         } else {
 722                                                                 $elem.removeClass('gridster-loaded');
 723                                                         }
 724                                                 });
 725
 726                                                 scope.$watch(function() {
 727                                                         return gridster.isMobile;
 728                                                 }, function() {
 729                                                         if (gridster.isMobile) {
 730                                                                 $elem.addClass('gridster-mobile').removeClass('gridster-desktop');
 731                                                         } else {
 732                                                                 $elem.removeClass('gridster-mobile').addClass('gridster-desktop');
 733                                                         }
 734                                                         $rootScope.$broadcast('gridster-mobile-changed', gridster);
 735                                                 });
 736
 737                                                 scope.$watch(function() {
 738                                                         return gridster.draggable;
 739                                                 }, function() {
 740                                                         $rootScope.$broadcast('gridster-draggable-changed', gridster);
 741                                                 }, true);
 742
 743                                                 scope.$watch(function() {
 744                                                         return gridster.resizable;
 745                                                 }, function() {
 746                                                         $rootScope.$broadcast('gridster-resizable-changed', gridster);
 747                                                 }, true);
 748
 749                                                 function updateHeight() {
 750                                                     if(gridster.gridHeight){ //need to put this check, otherwise fail in IE8
 751                                                         $elem.css('height', (gridster.gridHeight * gridster.curRowHeight) + (gridster.outerMargin ? gridster.margins[0] : -gridster.margins[0]) + 'px');
 752                                                     }
 753                                                 }
 754
 755                                                 scope.$watch(function() {
 756                                                         return gridster.gridHeight;
 757                                                 }, updateHeight);
 758
 759                                                 scope.$watch(function() {
 760                                                         return gridster.movingItem;
 761                                                 }, function() {
 762                                                         gridster.updateHeight(gridster.movingItem ? gridster.movingItem.sizeY : 0);
 763                                                 });
 764
 765                                                 var prevWidth = $elem[0].offsetWidth || parseInt($elem.css('width'), 10);
 766
 767                                                 var resize = function() {
 768                                                         var width = $elem[0].offsetWidth || parseInt($elem.css('width'), 10);
 769
 770                                                         if (!width || width === prevWidth || gridster.movingItem) {
 771                                                                 return;
 772                                                         }
 773                                                         prevWidth = width;
 774
 775                                                         if (gridster.loaded) {
 776                                                                 $elem.removeClass('gridster-loaded');
 777                                                         }
 778
 779                                                         refresh();
 780
 781                                                         if (gridster.loaded) {
 782                                                                 $elem.addClass('gridster-loaded');
 783                                                         }
 784
 785                                                         $rootScope.$broadcast('gridster-resized', [width, $elem[0].offsetHeight], gridster);
 786                                                 };
 787
 788                                                 // track element width changes any way we can
 789                                                 var onResize = gridsterDebounce(function onResize() {
 790                                                         resize();
 791                                                         $timeout(function() {
 792                                                                 scope.$apply();
 793                                                         });
 794                                                 }, 100);
 795
 796                                                 scope.$watch(function() {
 797                                                         return isVisible($elem[0]);
 798                                                 }, onResize);
 799
 800                                                 // see https://github.com/sdecima/javascript-detect-element-resize
 801                                                 if (typeof window.addResizeListener === 'function') {
 802                                                         window.addResizeListener($elem[0], onResize);
 803                                                 } else {
 804                                                         scope.$watch(function() {
 805                                                                 return $elem[0].offsetWidth || parseInt($elem.css('width'), 10);
 806                                                         }, resize);
 807                                                 }
 808                                                 var $win = angular.element($window);
 809                                                 $win.on('resize', onResize);
 810
 811                                                 // be sure to cleanup
 812                                                 scope.$on('$destroy', function() {
 813                                                         gridster.destroy();
 814                                                         $win.off('resize', onResize);
 815                                                         if (typeof window.removeResizeListener === 'function') {
 816                                                                 window.removeResizeListener($elem[0], onResize);
 817                                                         }
 818                                                 });
 819
 820                                                 // allow a little time to place items before floating up
 821                                                 $timeout(function() {
 822                                                         scope.$watch('gridster.floating', function() {
 823                                                                 gridster.floatItemsUp();
 824                                                         });
 825                                                         gridster.loaded = true;
 826                                                 }, 100);
 827                                         };
 828                                 }
 829                         };
 830                 }
 831         ])
 832
 833         .controller('GridsterItemCtrl', function() {
 834                 this.$element = null;
 835                 this.gridster = null;
 836                 this.row = null;
 837                 this.col = null;
 838                 this.sizeX = null;
 839                 this.sizeY = null;
 840                 this.minSizeX = 0;
 841                 this.minSizeY = 0;
 842                 this.maxSizeX = null;
 843                 this.maxSizeY = null;
 844
 845                 this.init = function($element, gridster) {
 846                         this.$element = $element;
 847                         this.gridster = gridster;
 848                         this.sizeX = gridster.defaultSizeX;
 849                         this.sizeY = gridster.defaultSizeY;
 850                 };
 851
 852                 this.destroy = function() {
 853                         // set these to null to avoid the possibility of circular references
 854                         this.gridster = null;
 855                         this.$element = null;
 856                 };
 857
 858                 /**
 859                  * Returns the items most important attributes
 860                  */
 861                 this.toJSON = function() {
 862                         return {
 863                                 row: this.row,
 864                                 col: this.col,
 865                                 sizeY: this.sizeY,
 866                                 sizeX: this.sizeX
 867                         };
 868                 };
 869
 870                 this.isMoving = function() {
 871                         return this.gridster.movingItem === this;
 872                 };
 873
 874                 /**
 875                  * Set the items position
 876                  *
 877                  * @param {Number} row
 878                  * @param {Number} column
 879                  */
 880                 this.setPosition = function(row, column) {
 881                         this.gridster.putItem(this, row, column);
 882
 883                         if (!this.isMoving()) {
 884                                 this.setElementPosition();
 885                         }
 886                 };
 887
 888                 /**
 889                  * Sets a specified size property
 890                  *
 891                  * @param {String} key Can be either "x" or "y"
 892                  * @param {Number} value The size amount
 893                  * @param {Boolean} preventMove
 894                  */
 895                 this.setSize = function(key, value, preventMove) {
 896                         key = key.toUpperCase();
 897                         var camelCase = 'size' + key,
 898                                 titleCase = 'Size' + key;
 899                         if (value === '') {
 900                                 return;
 901                         }
 902                         value = parseInt(value, 10);
 903                         if (isNaN(value) || value === 0) {
 904                                 value = this.gridster['default' + titleCase];
 905                         }
 906                         var max = key === 'X' ? this.gridster.columns : this.gridster.maxRows;
 907                         if (this['max' + titleCase]) {
 908                                 max = Math.min(this['max' + titleCase], max);
 909                         }
 910                         if (this.gridster['max' + titleCase]) {
 911                                 max = Math.min(this.gridster['max' + titleCase], max);
 912                         }
 913                         if (key === 'X' && this.cols) {
 914                                 max -= this.cols;
 915                         } else if (key === 'Y' && this.rows) {
 916                                 max -= this.rows;
 917                         }
 918
 919                         var min = 0;
 920                         if (this['min' + titleCase]) {
 921                                 min = Math.max(this['min' + titleCase], min);
 922                         }
 923                         if (this.gridster['min' + titleCase]) {
 924                                 min = Math.max(this.gridster['min' + titleCase], min);
 925                         }
 926
 927                         value = Math.max(Math.min(value, max), min);
 928
 929                         var changed = (this[camelCase] !== value || (this['old' + titleCase] && this['old' + titleCase] !== value));
 930                         this['old' + titleCase] = this[camelCase] = value;
 931
 932                         if (!this.isMoving()) {
 933                                 this['setElement' + titleCase]();
 934                         }
 935                         if (!preventMove && changed) {
 936                                 this.gridster.moveOverlappingItems(this);
 937                                 this.gridster.layoutChanged();
 938                         }
 939
 940                         return changed;
 941                 };
 942
 943                 /**
 944                  * Sets the items sizeY property
 945                  *
 946                  * @param {Number} rows
 947                  * @param {Boolean} preventMove
 948                  */
 949                 this.setSizeY = function(rows, preventMove) {
 950                         return this.setSize('Y', rows, preventMove);
 951                 };
 952
 953                 /**
 954                  * Sets the items sizeX property
 955                  *
 956                  * @param {Number} columns
 957                  * @param {Boolean} preventMove
 958                  */
 959                 this.setSizeX = function(columns, preventMove) {
 960                         return this.setSize('X', columns, preventMove);
 961                 };
 962
 963                 /**
 964                  * Sets an elements position on the page
 965                  */
 966                 this.setElementPosition = function() {
 967                         if (this.gridster.isMobile) {
 968                                 this.$element.css({
 969                                         marginLeft: this.gridster.margins[0] + 'px',
 970                                         marginRight: this.gridster.margins[0] + 'px',
 971                                         marginTop: this.gridster.margins[1] + 'px',
 972                                         marginBottom: this.gridster.margins[1] + 'px',
 973                                         top: '',
 974                                         left: ''
 975                                 });
 976                         } else {
 977                                 this.$element.css({
 978                                         margin: 0,
 979                                         top: (this.row * this.gridster.curRowHeight + (this.gridster.outerMargin ? this.gridster.margins[0] : 0)) + 'px',
 980                                         left: (this.col * this.gridster.curColWidth + (this.gridster.outerMargin ? this.gridster.margins[1] : 0)) + 'px'
 981                                 });
 982                         }
 983                 };
 984
 985                 /**
 986                  * Sets an elements height
 987                  */
 988                 this.setElementSizeY = function() {
 989                         if (this.gridster.isMobile && !this.gridster.saveGridItemCalculatedHeightInMobile) {
 990                                 this.$element.css('height', '');
 991                         } else {
 992                                 this.$element.css('height', (this.sizeY * this.gridster.curRowHeight - this.gridster.margins[0]) + 'px');
 993                         }
 994                 };
 995
 996                 /**
 997                  * Sets an elements width
 998                  */
 999                 this.setElementSizeX = function() {
1000                         if (this.gridster.isMobile) {
1001                                 this.$element.css('width', '');
1002                         } else {
1003                                 this.$element.css('width', (this.sizeX * this.gridster.curColWidth - this.gridster.margins[1]) + 'px');
1004                         }
1005                 };
1006
1007                 /**
1008                  * Gets an element's width
1009                  */
1010                 this.getElementSizeX = function() {
1011                         return (this.sizeX * this.gridster.curColWidth - this.gridster.margins[1]);
1012                 };
1013
1014                 /**
1015                  * Gets an element's height
1016                  */
1017                 this.getElementSizeY = function() {
1018                         return (this.sizeY * this.gridster.curRowHeight - this.gridster.margins[0]);
1019                 };
1020
1021         })
1022
1023         .factory('GridsterTouch', [function() {
1024                 return function GridsterTouch(target, startEvent, moveEvent, endEvent) {
1025                         var lastXYById = {};
1026
1027                         //  Opera doesn't have Object.keys so we use this wrapper
1028                         var numberOfKeys = function(theObject) {
1029                                 if (Object.keys) {
1030                                         return Object.keys(theObject).length;
1031                                 }
1032
1033                                 var n = 0,
1034                                         key;
1035                                 for (key in theObject) {
1036                                         ++n;
1037                                 }
1038
1039                                 return n;
1040                         };
1041
1042                         //  this calculates the delta needed to convert pageX/Y to offsetX/Y because offsetX/Y don't exist in the TouchEvent object or in Firefox's MouseEvent object
1043                         var computeDocumentToElementDelta = function(theElement) {
1044                                 var elementLeft = 0;
1045                                 var elementTop = 0;
1046                                 var oldIEUserAgent = navigator.userAgent.match(/\bMSIE\b/);
1047
1048                                 for (var offsetElement = theElement; offsetElement != null; offsetElement = offsetElement.offsetParent) {
1049                                         //  the following is a major hack for versions of IE less than 8 to avoid an apparent problem on the IEBlog with double-counting the offsets
1050                                         //  this may not be a general solution to IE7's problem with offsetLeft/offsetParent
1051                                         if (oldIEUserAgent &&
1052                                                 (!document.documentMode || document.documentMode < 8) &&
1053                                                 offsetElement.currentStyle.position === 'relative' && offsetElement.offsetParent && offsetElement.offsetParent.currentStyle.position === 'relative' && offsetElement.offsetLeft === offsetElement.offsetParent.offsetLeft) {
1054                                                 // add only the top
1055                                                 elementTop += offsetElement.offsetTop;
1056                                         } else {
1057                                                 elementLeft += offsetElement.offsetLeft;
1058                                                 elementTop += offsetElement.offsetTop;
1059                                         }
1060                                 }
1061
1062                                 return {
1063                                         x: elementLeft,
1064                                         y: elementTop
1065                                 };
1066                         };
1067
1068                         //  cache the delta from the document to our event target (reinitialized each mousedown/MSPointerDown/touchstart)
1069                         var documentToTargetDelta = computeDocumentToElementDelta(target);
1070
1071                         //  common event handler for the mouse/pointer/touch models and their down/start, move, up/end, and cancel events
1072                         var doEvent = function(theEvtObj) {
1073
1074                                 if (theEvtObj.type === 'mousemove' && numberOfKeys(lastXYById) === 0) {
1075                                         return;
1076                                 }
1077
1078                                 var prevent = true;
1079
1080                                 var pointerList = theEvtObj.changedTouches ? theEvtObj.changedTouches : [theEvtObj];
1081
1082                                 for (var i = 0; i < pointerList.length; ++i) {
1083                                         var pointerObj = pointerList[i];
1084                                         var pointerId = (typeof pointerObj.identifier !== 'undefined') ? pointerObj.identifier : (typeof pointerObj.pointerId !== 'undefined') ? pointerObj.pointerId : 1;
1085
1086                                         //  use the pageX/Y coordinates to compute target-relative coordinates when we have them (in ie < 9, we need to do a little work to put them there)
1087                                         if (typeof pointerObj.pageX === 'undefined') {
1088
1089                                                 //  initialize assuming our source element is our target
1090                                                 if(!ie8){
1091                                                     pointerObj.pageX = pointerObj.offsetX + documentToTargetDelta.x;
1092                                                     pointerObj.pageY = pointerObj.offsetY + documentToTargetDelta.y;
1093                                                 }
1094                                                 else{
1095                                                     pointerObj.pageX = pointerObj.clientX;
1096                                                     pointerObj.pageY = pointerObj.clientY;
1097                                                 }
1098
1099                                                 if (pointerObj.srcElement.offsetParent === target && document.documentMode && document.documentMode === 8 && pointerObj.type === 'mousedown') {
1100                                                         //  source element is a child piece of VML, we're in IE8, and we've not called setCapture yet - add the origin of the source element
1101                                                         pointerObj.pageX += pointerObj.srcElement.offsetLeft;
1102                                                         pointerObj.pageY += pointerObj.srcElement.offsetTop;
1103                                                 } else if (pointerObj.srcElement !== target && !document.documentMode || document.documentMode < 8) {
1104                                                         //  source element isn't the target (most likely it's a child piece of VML) and we're in a version of IE before IE8 -
1105                                                         //  the offsetX/Y values are unpredictable so use the clientX/Y values and adjust by the scroll offsets of its parents
1106                                                         //  to get the document-relative coordinates (the same as pageX/Y)
1107                                                         var sx = -2,
1108                                                                 sy = -2; // adjust for old IE's 2-pixel border
1109                                                         for (var scrollElement = pointerObj.srcElement; scrollElement !== null; scrollElement = scrollElement.parentNode) {
1110                                                                 sx += scrollElement.scrollLeft ? scrollElement.scrollLeft : 0;
1111                                                                 sy += scrollElement.scrollTop ? scrollElement.scrollTop : 0;
1112                                                         }
1113
1114                                                         pointerObj.pageX = pointerObj.clientX + sx;
1115                                                         pointerObj.pageY = pointerObj.clientY + sy;
1116                                                 }
1117                                         }
1118
1119
1120                                         var pageX = pointerObj.pageX;
1121                                         var pageY = pointerObj.pageY;
1122
1123                                         if (theEvtObj.type.match(/(start|down)$/i)) {
1124                                                 //  clause for processing MSPointerDown, touchstart, and mousedown
1125
1126                                                 //  refresh the document-to-target delta on start in case the target has moved relative to document
1127                                                 documentToTargetDelta = computeDocumentToElementDelta(target);
1128
1129                                                 //  protect against failing to get an up or end on this pointerId
1130                                                 if (lastXYById[pointerId]) {
1131                                                         if (endEvent) {
1132                                                                 endEvent({
1133                                                                         target: theEvtObj.target,
1134                                                                         which: theEvtObj.which,
1135                                                                         pointerId: pointerId,
1136                                                                         pageX: pageX,
1137                                                                         pageY: pageY
1138                                                                 });
1139                                                         }
1140
1141                                                         delete lastXYById[pointerId];
1142                                                 }
1143
1144                                                 if (startEvent) {
1145                                                         if (prevent) {
1146                                                                 prevent = startEvent({
1147                                                                         target: theEvtObj.target,
1148                                                                         which: theEvtObj.which,
1149                                                                         pointerId: pointerId,
1150                                                                         pageX: pageX,
1151                                                                         pageY: pageY
1152                                                                 });
1153                                                         }
1154                                                 }
1155
1156                                                 //  init last page positions for this pointer
1157                                                 lastXYById[pointerId] = {
1158                                                         x: pageX,
1159                                                         y: pageY
1160                                                 };
1161
1162                                                 // IE pointer model
1163                                                 if (target.msSetPointerCapture) {
1164                                                         target.msSetPointerCapture(pointerId);
1165                                                 } else if (theEvtObj.type === 'mousedown' && numberOfKeys(lastXYById) === 1) {
1166                                                         if (useSetReleaseCapture) {
1167                                                                 target.setCapture(true);
1168                                                         } else {
1169                                                                 document.addEventListener('mousemove', doEvent, false);
1170                                                                 document.addEventListener('mouseup', doEvent, false);
1171                                                         }
1172                                                 }
1173                                         } else if (theEvtObj.type.match(/move$/i)) {
1174                                                 //  clause handles mousemove, MSPointerMove, and touchmove
1175
1176                                                 if (lastXYById[pointerId] && !(lastXYById[pointerId].x === pageX && lastXYById[pointerId].y === pageY)) {
1177                                                         //  only extend if the pointer is down and it's not the same as the last point
1178
1179                                                         if (moveEvent && prevent) {
1180                                                                 prevent = moveEvent({
1181                                                                         target: theEvtObj.target,
1182                                                                         which: theEvtObj.which,
1183                                                                         pointerId: pointerId,
1184                                                                         pageX: pageX,
1185                                                                         pageY: pageY
1186                                                                 });
1187                                                         }
1188
1189                                                         //  update last page positions for this pointer
1190                                                         lastXYById[pointerId].x = pageX;
1191                                                         lastXYById[pointerId].y = pageY;
1192                                                 }
1193                                         } else if (lastXYById[pointerId] && theEvtObj.type.match(/(up|end|cancel)$/i)) {
1194                                                 //  clause handles up/end/cancel
1195
1196                                                 if (endEvent && prevent) {
1197                                                         prevent = endEvent({
1198                                                                 target: theEvtObj.target,
1199                                                                 which: theEvtObj.which,
1200                                                                 pointerId: pointerId,
1201                                                                 pageX: pageX,
1202                                                                 pageY: pageY
1203                                                         });
1204                                                 }
1205
1206                                                 //  delete last page positions for this pointer
1207                                                 delete lastXYById[pointerId];
1208
1209                                                 //  in the Microsoft pointer model, release the capture for this pointer
1210                                                 //  in the mouse model, release the capture or remove document-level event handlers if there are no down points
1211                                                 //  nothing is required for the iOS touch model because capture is implied on touchstart
1212                                                 if (target.msReleasePointerCapture) {
1213                                                         target.msReleasePointerCapture(pointerId);
1214                                                 } else if (theEvtObj.type === 'mouseup' && numberOfKeys(lastXYById) === 0) {
1215                                                         if (useSetReleaseCapture) {
1216                                                                 target.releaseCapture();
1217                                                         } else {
1218                                                                 document.removeEventListener('mousemove', doEvent, false);
1219                                                                 document.removeEventListener('mouseup', doEvent, false);
1220                                                         }
1221                                                 }
1222                                         }
1223                                 }
1224
1225                                 if (prevent) {
1226                                         if (theEvtObj.preventDefault) {
1227                                                 theEvtObj.preventDefault();
1228                                         }
1229
1230                                         if (theEvtObj.preventManipulation) {
1231                                                 theEvtObj.preventManipulation();
1232                                         }
1233
1234                                         if (theEvtObj.preventMouseEvent) {
1235                                                 theEvtObj.preventMouseEvent();
1236                                         }
1237                                 }
1238                         };
1239
1240                         var useSetReleaseCapture = false;
1241                         // saving the settings for contentZooming and touchaction before activation
1242                         var contentZooming, msTouchAction;
1243
1244                         this.enable = function() {
1245
1246                                 if (window.navigator.msPointerEnabled) {
1247                                         //  Microsoft pointer model
1248                                         target.addEventListener('MSPointerDown', doEvent, false);
1249                                         target.addEventListener('MSPointerMove', doEvent, false);
1250                                         target.addEventListener('MSPointerUp', doEvent, false);
1251                                         target.addEventListener('MSPointerCancel', doEvent, false);
1252
1253                                         //  css way to prevent panning in our target area
1254                                         if (typeof target.style.msContentZooming !== 'undefined') {
1255                                                 contentZooming = target.style.msContentZooming;
1256                                                 target.style.msContentZooming = 'none';
1257                                         }
1258
1259                                         //  new in Windows Consumer Preview: css way to prevent all built-in touch actions on our target
1260                                         //  without this, you cannot touch draw on the element because IE will intercept the touch events
1261                                         if (typeof target.style.msTouchAction !== 'undefined') {
1262                                                 msTouchAction = target.style.msTouchAction;
1263                                                 target.style.msTouchAction = 'none';
1264                                         }
1265                                 } else if (target.addEventListener) {
1266                                         //  iOS touch model
1267                                         target.addEventListener('touchstart', doEvent, false);
1268                                         target.addEventListener('touchmove', doEvent, false);
1269                                         target.addEventListener('touchend', doEvent, false);
1270                                         target.addEventListener('touchcancel', doEvent, false);
1271
1272                                         //  mouse model
1273                                         target.addEventListener('mousedown', doEvent, false);
1274
1275                                         //  mouse model with capture
1276                                         //  rejecting gecko because, unlike ie, firefox does not send events to target when the mouse is outside target
1277                                         if (target.setCapture && !window.navigator.userAgent.match(/\bGecko\b/)) {
1278                                                 useSetReleaseCapture = true;
1279
1280                                                 target.addEventListener('mousemove', doEvent, false);
1281                                                 target.addEventListener('mouseup', doEvent, false);
1282                                         }
1283                                 } else if (target.attachEvent && target.setCapture) {
1284                                         //  legacy IE mode - mouse with capture
1285                                         useSetReleaseCapture = true;
1286                                         target.attachEvent('onmousedown', function() {
1287                                                 doEvent(window.event);
1288                                                 window.event.returnValue = false;
1289                                                 return false;
1290                                         });
1291                                         target.attachEvent('onmousemove', function() {
1292                                                 doEvent(window.event);
1293                                                 window.event.returnValue = false;
1294                                                 return false;
1295                                         });
1296                                         target.attachEvent('onmouseup', function() {
1297                                                 doEvent(window.event);
1298                                                 window.event.returnValue = false;
1299                                                 return false;
1300                                         });
1301                                 }
1302                         };
1303
1304                         this.disable = function() {
1305                                 if (window.navigator.msPointerEnabled) {
1306                                         //  Microsoft pointer model
1307                                         target.removeEventListener('MSPointerDown', doEvent, false);
1308                                         target.removeEventListener('MSPointerMove', doEvent, false);
1309                                         target.removeEventListener('MSPointerUp', doEvent, false);
1310                                         target.removeEventListener('MSPointerCancel', doEvent, false);
1311
1312                                         //  reset zooming to saved value
1313                                         if (contentZooming) {
1314                                                 target.style.msContentZooming = contentZooming;
1315                                         }
1316
1317                                         // reset touch action setting
1318                                         if (msTouchAction) {
1319                                                 target.style.msTouchAction = msTouchAction;
1320                                         }
1321                                 } else if (target.removeEventListener) {
1322                                         //  iOS touch model
1323                                         target.removeEventListener('touchstart', doEvent, false);
1324                                         target.removeEventListener('touchmove', doEvent, false);
1325                                         target.removeEventListener('touchend', doEvent, false);
1326                                         target.removeEventListener('touchcancel', doEvent, false);
1327
1328                                         //  mouse model
1329                                         target.removeEventListener('mousedown', doEvent, false);
1330
1331                                         //  mouse model with capture
1332                                         //  rejecting gecko because, unlike ie, firefox does not send events to target when the mouse is outside target
1333                                         if (target.setCapture && !window.navigator.userAgent.match(/\bGecko\b/)) {
1334                                                 useSetReleaseCapture = true;
1335
1336                                                 target.removeEventListener('mousemove', doEvent, false);
1337                                                 target.removeEventListener('mouseup', doEvent, false);
1338                                         }
1339                                 } else if (target.detachEvent && target.setCapture) {
1340                                         //  legacy IE mode - mouse with capture
1341                                         useSetReleaseCapture = true;
1342                                         target.detachEvent('onmousedown');
1343                                         target.detachEvent('onmousemove');
1344                                         target.detachEvent('onmouseup');
1345                                 }
1346                         };
1347
1348                         return this;
1349                 };
1350         }])
1351
1352         .factory('GridsterDraggable', ['$document', '$timeout', '$window', 'GridsterTouch',
1353                 function($document, $timeout, $window, GridsterTouch) {
1354                         function GridsterDraggable($el, scope, gridster, item, itemOptions) {
1355
1356                                 var elmX, elmY, elmW, elmH,
1357
1358                                         mouseX = 0,
1359                                         mouseY = 0,
1360                                         lastMouseX = 0,
1361                                         lastMouseY = 0,
1362                                         mOffX = 0,
1363                                         mOffY = 0,
1364
1365                                         minTop = 0,
1366                                         maxTop = 9999,
1367                                         minLeft = 0,
1368                                         realdocument = $document[0];
1369
1370                                 var originalCol, originalRow;
1371                                 var inputTags = ['select', 'input', 'textarea', 'button'];
1372
1373                                 var gridsterItemDragElement = $el[0].querySelector('[gridster-item-drag]');
1374                                 //console.log(gridsterItemDragElement);
1375                                 var isDraggableAreaDefined = gridsterItemDragElement?true:false;
1376                                //console.log(isDraggableAreaDefined);
1377
1378                                 function mouseDown(e) {
1379
1380                                     if(ie8){
1381                                         e.target = window.event.srcElement;
1382                                         e.which = window.event.button;
1383                                     }
1384
1385                                     if(isDraggableAreaDefined && (!gridsterItemDragElement.contains(e.target))){
1386                                         return false;
1387                                     }
1388
1389                                         if (inputTags.indexOf(e.target.nodeName.toLowerCase()) !== -1) {
1390                                             return false;
1391                                         }
1392
1393                                         var $target = angular.element(e.target);
1394
1395                                         // exit, if a resize handle was hit
1396                                         if ($target.hasClass('gridster-item-resizable-handler')) {
1397                                                 return false;
1398                                         }
1399
1400                                         // exit, if the target has it's own click event
1401                                         if ($target.attr('onclick') || $target.attr('ng-click')) {
1402                                                 return false;
1403                                         }
1404
1405                                         // only works if you have jQuery
1406                                         if ($target.closest && $target.closest('.gridster-no-drag').length) {
1407                                                 return false;
1408                                         }
1409
1410                                         switch (e.which) {
1411                                                 case 1:
1412                                                         // left mouse button
1413                                                         break;
1414                                                 case 2:
1415                                                 case 3:
1416                                                         // right or middle mouse button
1417                                                         return;
1418                                         }
1419
1420                                         lastMouseX = e.pageX;
1421                                         lastMouseY = e.pageY;
1422
1423                                         elmX = parseInt($el.css('left'), 10);
1424                                         elmY = parseInt($el.css('top'), 10);
1425                                         elmW = $el[0].offsetWidth;
1426                                         elmH = $el[0].offsetHeight;
1427
1428                                         originalCol = item.col;
1429                                         originalRow = item.row;
1430
1431                                         dragStart(e);
1432
1433                                         return true;
1434                                 }
1435
1436                                 function mouseMove(e) {
1437                                         if (!$el.hasClass('gridster-item-moving') || $el.hasClass('gridster-item-resizing')) {
1438                                                 return false;
1439                                         }
1440
1441                                         var maxLeft = gridster.curWidth - 1;
1442
1443                                         // Get the current mouse position.
1444                                         mouseX = e.pageX;
1445                                         mouseY = e.pageY;
1446
1447                                         // Get the deltas
1448                                         var diffX = mouseX - lastMouseX + mOffX;
1449                                         var diffY = mouseY - lastMouseY + mOffY;
1450                                         mOffX = mOffY = 0;
1451
1452                                         // Update last processed mouse positions.
1453                                         lastMouseX = mouseX;
1454                                         lastMouseY = mouseY;
1455
1456                                         var dX = diffX,
1457                                                 dY = diffY;
1458                                         if (elmX + dX < minLeft) {
1459                                                 diffX = minLeft - elmX;
1460                                                 mOffX = dX - diffX;
1461                                         } else if (elmX + elmW + dX > maxLeft) {
1462                                                 diffX = maxLeft - elmX - elmW;
1463                                                 mOffX = dX - diffX;
1464                                         }
1465
1466                                         if (elmY + dY < minTop) {
1467                                                 diffY = minTop - elmY;
1468                                                 mOffY = dY - diffY;
1469                                         } else if (elmY + elmH + dY > maxTop) {
1470                                                 diffY = maxTop - elmY - elmH;
1471                                                 mOffY = dY - diffY;
1472                                         }
1473                                         elmX += diffX;
1474                                         elmY += diffY;
1475
1476                                         // set new position
1477                                         $el.css({
1478                                                 'top': elmY + 'px',
1479                                                 'left': elmX + 'px'
1480                                         });
1481
1482                                         drag(e);
1483
1484                                         return true;
1485                                 }
1486
1487                                 function mouseUp(e) {
1488                                         if (!$el.hasClass('gridster-item-moving') || $el.hasClass('gridster-item-resizing')) {
1489                                                 return false;
1490                                         }
1491
1492                                         mOffX = mOffY = 0;
1493
1494                                         dragStop(e);
1495
1496                                         return true;
1497                                 }
1498
1499                                 function dragStart(event) {
1500                                         $el.addClass('gridster-item-moving');
1501                                         gridster.movingItem = item;
1502
1503                                         gridster.updateHeight(item.sizeY);
1504                                         scope.$apply(function() {
1505                                                 if (gridster.draggable && gridster.draggable.start) {
1506                                                         gridster.draggable.start(event, $el, itemOptions);
1507                                                 }
1508                                         });
1509                                 }
1510
1511                                 function drag(event) {
1512                                         var oldRow = item.row,
1513                                                 oldCol = item.col,
1514                                                 hasCallback = gridster.draggable && gridster.draggable.drag,
1515                                                 scrollSensitivity = gridster.draggable.scrollSensitivity,
1516                                                 scrollSpeed = gridster.draggable.scrollSpeed;
1517
1518                                         var row = gridster.pixelsToRows(elmY);
1519                                         var col = gridster.pixelsToColumns(elmX);
1520
1521                                         var itemsInTheWay = gridster.getItems(row, col, item.sizeX, item.sizeY, item);
1522                                         var hasItemsInTheWay = itemsInTheWay.length !== 0;
1523
1524                                         if (gridster.swapping === true && hasItemsInTheWay) {
1525                                                 var boundingBoxItem = gridster.getBoundingBox(itemsInTheWay),
1526                                                         sameSize = boundingBoxItem.sizeX === item.sizeX && boundingBoxItem.sizeY === item.sizeY,
1527                                                         sameRow = boundingBoxItem.row === oldRow,
1528                                                         sameCol = boundingBoxItem.col === oldCol,
1529                                                         samePosition = boundingBoxItem.row === row && boundingBoxItem.col === col,
1530                                                         inline = sameRow || sameCol;
1531
1532                                                 if (sameSize && itemsInTheWay.length === 1) {
1533                                                         if (samePosition) {
1534                                                                 gridster.swapItems(item, itemsInTheWay[0]);
1535                                                         } else if (inline) {
1536                                                                 return;
1537                                                         }
1538                                                 } else if (boundingBoxItem.sizeX <= item.sizeX && boundingBoxItem.sizeY <= item.sizeY && inline) {
1539                                                         var emptyRow = item.row <= row ? item.row : row + item.sizeY,
1540                                                                 emptyCol = item.col <= col ? item.col : col + item.sizeX,
1541                                                                 rowOffset = emptyRow - boundingBoxItem.row,
1542                                                                 colOffset = emptyCol - boundingBoxItem.col;
1543
1544                                                         for (var i = 0, l = itemsInTheWay.length; i < l; ++i) {
1545                                                                 var itemInTheWay = itemsInTheWay[i];
1546
1547                                                                 var itemsInFreeSpace = gridster.getItems(
1548                                                                         itemInTheWay.row + rowOffset,
1549                                                                         itemInTheWay.col + colOffset,
1550                                                                         itemInTheWay.sizeX,
1551                                                                         itemInTheWay.sizeY,
1552                                                                         item
1553                                                                 );
1554
1555                                                                 if (itemsInFreeSpace.length === 0) {
1556                                                                         gridster.putItem(itemInTheWay, itemInTheWay.row + rowOffset, itemInTheWay.col + colOffset);
1557                                                                 }
1558                                                         }
1559                                                 }
1560                                         }
1561
1562                                         if (gridster.pushing !== false || !hasItemsInTheWay) {
1563                                                 item.row = row;
1564                                                 item.col = col;
1565                                         }
1566
1567                                         if(($window.navigator.appName === 'Microsoft Internet Explorer' && !ie8) || $window.navigator.userAgent.indexOf("Firefox")!==-1){
1568                                             if (event.pageY - realdocument.documentElement.scrollTop < scrollSensitivity) {
1569                                                     realdocument.documentElement.scrollTop = realdocument.documentElement.scrollTop - scrollSpeed;
1570                                             } else if ($window.innerHeight - (event.pageY - realdocument.documentElement.scrollTop) < scrollSensitivity) {
1571                                                     realdocument.documentElement.scrollTop = realdocument.documentElement.scrollTop + scrollSpeed;
1572                                             }
1573                                         }
1574                                         else{
1575                                             if (event.pageY - realdocument.body.scrollTop < scrollSensitivity) {
1576                                                     realdocument.body.scrollTop = realdocument.body.scrollTop - scrollSpeed;
1577                                             } else if ($window.innerHeight - (event.pageY - realdocument.body.scrollTop) < scrollSensitivity) {
1578                                                     realdocument.body.scrollTop = realdocument.body.scrollTop + scrollSpeed;
1579                                             }
1580                                         }
1581
1582
1583
1584                                         if (event.pageX - realdocument.body.scrollLeft < scrollSensitivity) {
1585                                                 realdocument.body.scrollLeft = realdocument.body.scrollLeft - scrollSpeed;
1586                                         } else if ($window.innerWidth - (event.pageX - realdocument.body.scrollLeft) < scrollSensitivity) {
1587                                                 realdocument.body.scrollLeft = realdocument.body.scrollLeft + scrollSpeed;
1588                                         }
1589
1590                                         if (hasCallback || oldRow !== item.row || oldCol !== item.col) {
1591                                                 scope.$apply(function() {
1592                                                         if (hasCallback) {
1593                                                                 gridster.draggable.drag(event, $el, itemOptions);
1594                                                         }
1595                                                 });
1596                                         }
1597                                 }
1598
1599                                 function dragStop(event) {
1600                                         $el.removeClass('gridster-item-moving');
1601                                         var row = gridster.pixelsToRows(elmY);
1602                                         var col = gridster.pixelsToColumns(elmX);
1603                                         if (gridster.pushing !== false || gridster.getItems(row, col, item.sizeX, item.sizeY, item).length === 0) {
1604                                                 item.row = row;
1605                                                 item.col = col;
1606                                         }
1607                                         gridster.movingItem = null;
1608                                         item.setPosition(item.row, item.col);
1609
1610                                         scope.$apply(function() {
1611                                                 if (gridster.draggable && gridster.draggable.stop) {
1612                                                         gridster.draggable.stop(event, $el, itemOptions);
1613                                                 }
1614                                         });
1615                                 }
1616
1617                                 var enabled = null;
1618                                 var $dragHandles = null;
1619                                 var unifiedInputs = [];
1620
1621                                 this.enable = function() {
1622                                         if (enabled === true) {
1623                                                 return;
1624                                         }
1625
1626                                         // disable and timeout required for some template rendering
1627                                         $timeout(function() {
1628                                                 // disable any existing draghandles
1629                                                 for (var u = 0, ul = unifiedInputs.length; u < ul; ++u) {
1630                                                         unifiedInputs[u].disable();
1631                                                 }
1632                                                 unifiedInputs = [];
1633
1634                                                 if (gridster.draggable && gridster.draggable.handle) {
1635                                                         $dragHandles = angular.element($el[0].querySelectorAll(gridster.draggable.handle));
1636                                                         if ($dragHandles.length === 0) {
1637                                                                 // fall back to element if handle not found...
1638                                                                 $dragHandles = $el;
1639                                                         }
1640                                                 } else {
1641                                                         $dragHandles = $el;
1642                                                 }
1643
1644                                                 for (var h = 0, hl = $dragHandles.length; h < hl; ++h) {
1645                                                         unifiedInputs[h] = new GridsterTouch($dragHandles[h], mouseDown, mouseMove, mouseUp);
1646                                                         unifiedInputs[h].enable();
1647                                                 }
1648
1649                                                 enabled = true;
1650                                         });
1651                                 };
1652
1653                                 this.disable = function() {
1654                                         if (enabled === false) {
1655                                                 return;
1656                                         }
1657
1658                                         // timeout to avoid race contition with the enable timeout
1659                                         $timeout(function() {
1660
1661                                                 for (var u = 0, ul = unifiedInputs.length; u < ul; ++u) {
1662                                                         unifiedInputs[u].disable();
1663                                                 }
1664
1665                                                 unifiedInputs = [];
1666                                                 enabled = false;
1667                                         });
1668                                 };
1669
1670                                 this.toggle = function(enabled) {
1671                                         if (enabled) {
1672                                                 this.enable();
1673                                         } else {
1674                                                 this.disable();
1675                                         }
1676                                 };
1677
1678                                 this.destroy = function() {
1679                                         this.disable();
1680                                 };
1681                         }
1682
1683                         return GridsterDraggable;
1684                 }
1685         ])
1686
1687         .factory('GridsterResizable', ['GridsterTouch', function(GridsterTouch) {
1688                 function GridsterResizable($el, scope, gridster, item, itemOptions) {
1689
1690                         function ResizeHandle(handleClass) {
1691
1692                                 var hClass = handleClass;
1693
1694                                 var elmX, elmY, elmW, elmH,
1695
1696                                         mouseX = 0,
1697                                         mouseY = 0,
1698                                         lastMouseX = 0,
1699                                         lastMouseY = 0,
1700                                         mOffX = 0,
1701                                         mOffY = 0,
1702
1703                                         minTop = 0,
1704                                         maxTop = 9999,
1705                                         minLeft = 0;
1706
1707                                 var getMinHeight = function() {
1708                                         return (item.minSizeY ? item.minSizeY : 1) * gridster.curRowHeight - gridster.margins[0];
1709                                 };
1710                                 var getMinWidth = function() {
1711                                         return (item.minSizeX ? item.minSizeX : 1) * gridster.curColWidth - gridster.margins[1];
1712                                 };
1713
1714                                 var originalWidth, originalHeight;
1715                                 var savedDraggable;
1716
1717                                 function mouseDown(e) {
1718                                         switch (e.which) {
1719                                                 case 1:
1720                                                         // left mouse button
1721                                                         break;
1722                                                 case 2:
1723                                                 case 3:
1724                                                         // right or middle mouse button
1725                                                         return;
1726                                         }
1727
1728                                         // save the draggable setting to restore after resize
1729                                         savedDraggable = gridster.draggable.enabled;
1730                                         if (savedDraggable) {
1731                                                 gridster.draggable.enabled = false;
1732                                                 scope.$broadcast('gridster-draggable-changed', gridster);
1733                                         }
1734
1735                                         // Get the current mouse position.
1736                                         lastMouseX = e.pageX;
1737                                         lastMouseY = e.pageY;
1738
1739                                         // Record current widget dimensions
1740                                         elmX = parseInt($el.css('left'), 10);
1741                                         elmY = parseInt($el.css('top'), 10);
1742                                         elmW = $el[0].offsetWidth;
1743                                         elmH = $el[0].offsetHeight;
1744
1745                                         originalWidth = item.sizeX;
1746                                         originalHeight = item.sizeY;
1747
1748                                         resizeStart(e);
1749
1750                                         return true;
1751                                 }
1752
1753                                 function resizeStart(e) {
1754                                         $el.addClass('gridster-item-moving');
1755                                         $el.addClass('gridster-item-resizing');
1756
1757                                         gridster.movingItem = item;
1758
1759                                         item.setElementSizeX();
1760                                         item.setElementSizeY();
1761                                         item.setElementPosition();
1762                                         gridster.updateHeight(1);
1763
1764                                         scope.$apply(function() {
1765                                                 // callback
1766                                                 if (gridster.resizable && gridster.resizable.start) {
1767                                                         gridster.resizable.start(e, $el, itemOptions); // options is the item model
1768                                                 }
1769                                         });
1770                                 }
1771
1772                                 function mouseMove(e) {
1773                                         var maxLeft = gridster.curWidth - 1;
1774
1775                                         // Get the current mouse position.
1776                                         mouseX = e.pageX;
1777                                         mouseY = e.pageY;
1778
1779                                         // Get the deltas
1780                                         var diffX = mouseX - lastMouseX + mOffX;
1781                                         var diffY = mouseY - lastMouseY + mOffY;
1782                                         mOffX = mOffY = 0;
1783
1784                                         // Update last processed mouse positions.
1785                                         lastMouseX = mouseX;
1786                                         lastMouseY = mouseY;
1787
1788                                         var dY = diffY,
1789                                                 dX = diffX;
1790
1791                                         if (hClass.indexOf('n') >= 0) {
1792                                                 if (elmH - dY < getMinHeight()) {
1793                                                         diffY = elmH - getMinHeight();
1794                                                         mOffY = dY - diffY;
1795                                                 } else if (elmY + dY < minTop) {
1796                                                         diffY = minTop - elmY;
1797                                                         mOffY = dY - diffY;
1798                                                 }
1799                                                 elmY += diffY;
1800                                                 elmH -= diffY;
1801                                         }
1802                                         if (hClass.indexOf('s') >= 0) {
1803                                                 if (elmH + dY < getMinHeight()) {
1804                                                         diffY = getMinHeight() - elmH;
1805                                                         mOffY = dY - diffY;
1806                                                 } else if (elmY + elmH + dY > maxTop) {
1807                                                         diffY = maxTop - elmY - elmH;
1808                                                         mOffY = dY - diffY;
1809                                                 }
1810                                                 elmH += diffY;
1811                                         }
1812                                         if (hClass.indexOf('w') >= 0) {
1813                                                 if (elmW - dX < getMinWidth()) {
1814                                                         diffX = elmW - getMinWidth();
1815                                                         mOffX = dX - diffX;
1816                                                 } else if (elmX + dX < minLeft) {
1817                                                         diffX = minLeft - elmX;
1818                                                         mOffX = dX - diffX;
1819                                                 }
1820                                                 elmX += diffX;
1821                                                 elmW -= diffX;
1822                                         }
1823                                         if (hClass.indexOf('e') >= 0) {
1824                                                 if (elmW + dX < getMinWidth()) {
1825                                                         diffX = getMinWidth() - elmW;
1826                                                         mOffX = dX - diffX;
1827                                                 } else if (elmX + elmW + dX > maxLeft) {
1828                                                         diffX = maxLeft - elmX - elmW;
1829                                                         mOffX = dX - diffX;
1830                                                 }
1831                                                 elmW += diffX;
1832                                         }
1833
1834                                         // set new position
1835                                         $el.css({
1836                                                 'top': elmY + 'px',
1837                                                 'left': elmX + 'px',
1838                                                 'width': elmW + 'px',
1839                                                 'height': elmH + 'px'
1840                                         });
1841
1842                                         resize(e);
1843
1844                                         return true;
1845                                 }
1846
1847                                 function mouseUp(e) {
1848                                         // restore draggable setting to its original state
1849                                         if (gridster.draggable.enabled !== savedDraggable) {
1850                                                 gridster.draggable.enabled = savedDraggable;
1851                                                 scope.$broadcast('gridster-draggable-changed', gridster);
1852                                         }
1853
1854                                         mOffX = mOffY = 0;
1855
1856                                         resizeStop(e);
1857
1858                                         return true;
1859                                 }
1860
1861                                 function resize(e) {
1862                                         var oldRow = item.row,
1863                                                 oldCol = item.col,
1864                                                 oldSizeX = item.sizeX,
1865                                                 oldSizeY = item.sizeY,
1866                                                 hasCallback = gridster.resizable && gridster.resizable.resize;
1867
1868                                         var col = item.col;
1869                                         // only change column if grabbing left edge
1870                                         if (['w', 'nw', 'sw'].indexOf(handleClass) !== -1) {
1871                                                 col = gridster.pixelsToColumns(elmX, false);
1872                                         }
1873
1874                                         var row = item.row;
1875                                         // only change row if grabbing top edge
1876                                         if (['n', 'ne', 'nw'].indexOf(handleClass) !== -1) {
1877                                                 row = gridster.pixelsToRows(elmY, false);
1878                                         }
1879
1880                                         var sizeX = item.sizeX;
1881                                         // only change row if grabbing left or right edge
1882                                         if (['n', 's'].indexOf(handleClass) === -1) {
1883                                                 sizeX = gridster.pixelsToColumns(elmW, true);
1884                                         }
1885
1886                                         var sizeY = item.sizeY;
1887                                         // only change row if grabbing top or bottom edge
1888                                         if (['e', 'w'].indexOf(handleClass) === -1) {
1889                                                 sizeY = gridster.pixelsToRows(elmH, true);
1890                                         }
1891
1892                                         if (gridster.pushing !== false || gridster.getItems(row, col, sizeX, sizeY, item).length === 0) {
1893                                                 item.row = row;
1894                                                 item.col = col;
1895                                                 item.sizeX = sizeX;
1896                                                 item.sizeY = sizeY;
1897                                         }
1898                                         var isChanged = item.row !== oldRow || item.col !== oldCol || item.sizeX !== oldSizeX || item.sizeY !== oldSizeY;
1899
1900                                         if (hasCallback || isChanged) {
1901                                                 scope.$apply(function() {
1902                                                         if (hasCallback) {
1903                                                                 gridster.resizable.resize(e, $el, itemOptions); // options is the item model
1904                                                         }
1905                                                 });
1906                                         }
1907                                 }
1908
1909                                 function resizeStop(e) {
1910                                         $el.removeClass('gridster-item-moving');
1911                                         $el.removeClass('gridster-item-resizing');
1912
1913                                         gridster.movingItem = null;
1914
1915                                         item.setPosition(item.row, item.col);
1916                                         item.setSizeY(item.sizeY);
1917                                         item.setSizeX(item.sizeX);
1918
1919                                         scope.$apply(function() {
1920                                                 if (gridster.resizable && gridster.resizable.stop) {
1921                                                         gridster.resizable.stop(e, $el, itemOptions); // options is the item model
1922                                                 }
1923                                         });
1924                                 }
1925
1926                                 var $dragHandle = null;
1927                                 var unifiedInput;
1928
1929                                 this.enable = function() {
1930                                         if (!$dragHandle) {
1931                                                 $dragHandle = angular.element('<div class="gridster-item-resizable-handler handle-' + hClass + '"></div>');
1932                                                 $el.append($dragHandle);
1933                                         }
1934
1935                                         unifiedInput = new GridsterTouch($dragHandle[0], mouseDown, mouseMove, mouseUp);
1936                                         unifiedInput.enable();
1937                                 };
1938
1939                                 this.disable = function() {
1940                                         if ($dragHandle) {
1941                                                 $dragHandle.remove();
1942                                                 $dragHandle = null;
1943                                         }
1944
1945                                         unifiedInput.disable();
1946                                         unifiedInput = undefined;
1947                                 };
1948
1949                                 this.destroy = function() {
1950                                         this.disable();
1951                                 };
1952                         }
1953
1954                         var handles = [];
1955                         var handlesOpts = gridster.resizable.handles;
1956                         if (typeof handlesOpts === 'string') {
1957                                 handlesOpts = gridster.resizable.handles.split(',');
1958                         }
1959                         var enabled = false;
1960
1961                         for (var c = 0, l = handlesOpts.length; c < l; c++) {
1962                                 handles.push(new ResizeHandle(handlesOpts[c]));
1963                         }
1964
1965                         this.enable = function() {
1966                                 if (enabled) {
1967                                         return;
1968                                 }
1969                                 for (var c = 0, l = handles.length; c < l; c++) {
1970                                         handles[c].enable();
1971                                 }
1972                                 enabled = true;
1973                         };
1974
1975                         this.disable = function() {
1976                                 if (!enabled) {
1977                                         return;
1978                                 }
1979                                 for (var c = 0, l = handles.length; c < l; c++) {
1980                                         handles[c].disable();
1981                                 }
1982                                 enabled = false;
1983                         };
1984
1985                         this.toggle = function(enabled) {
1986                                 if (enabled) {
1987                                         this.enable();
1988                                 } else {
1989                                         this.disable();
1990                                 }
1991                         };
1992
1993                         this.destroy = function() {
1994                                 for (var c = 0, l = handles.length; c < l; c++) {
1995                                         handles[c].destroy();
1996                                 }
1997                         };
1998                 }
1999                 return GridsterResizable;
2000         }])
2001
2002         .factory('gridsterDebounce', function() {
2003                 return function gridsterDebounce(func, wait, immediate) {
2004                         var timeout;
2005                         return function() {
2006                                 var context = this,
2007                                         args = arguments;
2008                                 var later = function() {
2009                                         timeout = null;
2010                                         if (!immediate) {
2011                                                 func.apply(context, args);
2012                                         }
2013                                 };
2014                                 var callNow = immediate && !timeout;
2015                                 clearTimeout(timeout);
2016                                 timeout = setTimeout(later, wait);
2017                                 if (callNow) {
2018                                         func.apply(context, args);
2019                                 }
2020                         };
2021                 };
2022         })
2023
2024         /**
2025          * GridsterItem directive
2026          * @param $parse
2027          * @param GridsterDraggable
2028          * @param GridsterResizable
2029          * @param gridsterDebounce
2030          */
2031         .directive('gridsterItem', ['$parse', 'GridsterDraggable', 'GridsterResizable', 'gridsterDebounce',
2032                 function($parse, GridsterDraggable, GridsterResizable, gridsterDebounce) {
2033                         return {
2034                                 scope: true,
2035                                 restrict: 'EA',
2036                                 controller: 'GridsterItemCtrl',
2037                                 controllerAs: 'gridsterItem',
2038                                 require: ['^gridster', 'gridsterItem'],
2039                                 link: function(scope, $el, attrs, controllers) {
2040                                         var optionsKey = attrs.gridsterItem,
2041                                                 options;
2042
2043                                         var gridster = controllers[0],
2044                                                 item = controllers[1];
2045
2046                                         scope.gridster = gridster;
2047
2048
2049                                         // bind the item's position properties
2050                                         // options can be an object specified by gridster-item="object"
2051                                         // or the options can be the element html attributes object
2052                                         if (optionsKey) {
2053                                                 var $optionsGetter = $parse(optionsKey);
2054                                                 options = $optionsGetter(scope) || {};
2055                                                 if (!options && $optionsGetter.assign) {
2056                                                         options = {
2057                                                                 row: item.row,
2058                                                                 col: item.col,
2059                                                                 sizeX: item.sizeX,
2060                                                                 sizeY: item.sizeY,
2061                                                                 minSizeX: 0,
2062                                                                 minSizeY: 0,
2063                                                                 maxSizeX: null,
2064                                                                 maxSizeY: null
2065                                                         };
2066                                                         $optionsGetter.assign(scope, options);
2067                                                 }
2068                                         } else {
2069                                                 options = attrs;
2070                                         }
2071
2072                                         item.init($el, gridster);
2073
2074                                         $el.addClass('gridster-item');
2075
2076                                         var aspects = ['minSizeX', 'maxSizeX', 'minSizeY', 'maxSizeY', 'sizeX', 'sizeY', 'row', 'col'],
2077                                                 $getters = {};
2078
2079                                         var expressions = [];
2080                                         var aspectFn = function(aspect) {
2081                                                 var expression;
2082                                                 if (typeof options[aspect] === 'string') {
2083                                                         // watch the expression in the scope
2084                                                         expression = options[aspect];
2085                                                 } else if (typeof options[aspect.toLowerCase()] === 'string') {
2086                                                         // watch the expression in the scope
2087                                                         expression = options[aspect.toLowerCase()];
2088                                                 } else if (optionsKey) {
2089                                                         // watch the expression on the options object in the scope
2090                                                         expression = optionsKey + '.' + aspect;
2091                                                 } else {
2092                                                         return;
2093                                                 }
2094                                                 expressions.push('"' + aspect + '":' + expression);
2095                                                 $getters[aspect] = $parse(expression);
2096
2097                                                 // initial set
2098                                                 var val = $getters[aspect](scope);
2099                                                 if (typeof val === 'number') {
2100                                                         item[aspect] = val;
2101                                                 }
2102                                         };
2103
2104                                         for (var i = 0, l = aspects.length; i < l; ++i) {
2105                                                 aspectFn(aspects[i]);
2106                                         }
2107
2108                                         var watchExpressions = '{' + expressions.join(',') + '}';
2109
2110                                         // when the value changes externally, update the internal item object
2111                                         scope.$watchCollection(watchExpressions, function(newVals, oldVals) {
2112                                                 for (var aspect in newVals) {
2113                                                         var newVal = newVals[aspect];
2114                                                         var oldVal = oldVals[aspect];
2115                                                         if (oldVal === newVal) {
2116                                                                 continue;
2117                                                         }
2118                                                         newVal = parseInt(newVal, 10);
2119                                                         if (!isNaN(newVal)) {
2120                                                                 item[aspect] = newVal;
2121                                                         }
2122                                                 }
2123                                         });
2124
2125                                         function positionChanged() {
2126                                                 // call setPosition so the element and gridster controller are updated
2127                                                 item.setPosition(item.row, item.col);
2128
2129                                                 // when internal item position changes, update externally bound values
2130                                                 if ($getters.row && $getters.row.assign) {
2131                                                         $getters.row.assign(scope, item.row);
2132                                                 }
2133                                                 if ($getters.col && $getters.col.assign) {
2134                                                         $getters.col.assign(scope, item.col);
2135                                                 }
2136                                         }
2137                                         scope.$watch(function() {
2138                                                 return item.row + ',' + item.col;
2139                                         }, positionChanged);
2140
2141                                         function sizeChanged() {
2142                                                 var changedX = item.setSizeX(item.sizeX, true);
2143                                                 if (changedX && $getters.sizeX && $getters.sizeX.assign) {
2144                                                         $getters.sizeX.assign(scope, item.sizeX);
2145                                                 }
2146                                                 var changedY = item.setSizeY(item.sizeY, true);
2147                                                 if (changedY && $getters.sizeY && $getters.sizeY.assign) {
2148                                                         $getters.sizeY.assign(scope, item.sizeY);
2149                                                 }
2150
2151                                                 if (changedX || changedY) {
2152                                                         item.gridster.moveOverlappingItems(item);
2153                                                         gridster.layoutChanged();
2154                                                         scope.$broadcast('gridster-item-resized', item);
2155                                                 }
2156                                         }
2157
2158                                         scope.$watch(function() {
2159                                                 return item.sizeY + ',' + item.sizeX + ',' + item.minSizeX + ',' + item.maxSizeX + ',' + item.minSizeY + ',' + item.maxSizeY;
2160                                         }, sizeChanged);
2161
2162                                         var draggable = new GridsterDraggable($el, scope, gridster, item, options);
2163                                         var resizable = new GridsterResizable($el, scope, gridster, item, options);
2164
2165                                         var updateResizable = function() {
2166                                                 resizable.toggle(!gridster.isMobile && gridster.resizable && gridster.resizable.enabled);
2167                                         };
2168                                         updateResizable();
2169
2170                                         var updateDraggable = function() {
2171                                                 draggable.toggle(!gridster.isMobile && gridster.draggable && gridster.draggable.enabled);
2172                                         };
2173                                         updateDraggable();
2174
2175                                         scope.$on('gridster-draggable-changed', updateDraggable);
2176                                         scope.$on('gridster-resizable-changed', updateResizable);
2177                                         scope.$on('gridster-resized', updateResizable);
2178                                         scope.$on('gridster-mobile-changed', function() {
2179                                                 updateResizable();
2180                                                 updateDraggable();
2181                                         });
2182
2183                                         function whichTransitionEvent() {
2184                                                 var el = document.createElement('div');
2185                                                 var transitions = {
2186                                                         'transition': 'transitionend',
2187                                                         'OTransition': 'oTransitionEnd',
2188                                                         'MozTransition': 'transitionend',
2189                                                         'WebkitTransition': 'webkitTransitionEnd'
2190                                                 };
2191                                                 for (var t in transitions) {
2192                                                         if (el.style[t] !== undefined) {
2193                                                                 return transitions[t];
2194                                                         }
2195                                                 }
2196                                         }
2197
2198                                         var debouncedTransitionEndPublisher = gridsterDebounce(function() {
2199                                                 scope.$apply(function() {
2200                                                         scope.$broadcast('gridster-item-transition-end', item);
2201                                                 });
2202                                         }, 50);
2203
2204                                         if(whichTransitionEvent()){ //check for IE8, as it evaluates to null
2205                                             $el.on(whichTransitionEvent(), debouncedTransitionEndPublisher);
2206                                         }
2207
2208                                         scope.$broadcast('gridster-item-initialized', item);
2209
2210                                         return scope.$on('$destroy', function() {
2211                                                 try {
2212                                                         resizable.destroy();
2213                                                         draggable.destroy();
2214                                                 } catch (e) {}
2215
2216                                                 try {
2217                                                         gridster.removeItem(item);
2218                                                 } catch (e) {}
2219
2220                                                 try {
2221                                                         item.destroy();
2222                                                 } catch (e) {}
2223                                         });
2224                                 }
2225                         };
2226                 }
2227         ])
2228
2229         .directive('gridsterNoDrag', function() {
2230                 return {
2231                         restrict: 'A',
2232                         link: function(scope, $element) {
2233                                 $element.addClass('gridster-no-drag');
2234                         }
2235                 };
2236         })
2237
2238         ;
2239
2240 }));