examples/ux/ColumnHeaderGroup.js

   1 /*!
   2  * Ext JS Library 3.1.1
   3  * Copyright(c) 2006-2010 Ext JS, LLC
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 Ext.ns('Ext.ux.grid');\r
   8 \r
   9 Ext.ux.grid.ColumnHeaderGroup = Ext.extend(Ext.util.Observable, {\r
  10 \r
  11     constructor: function(config){\r
  12         this.config = config;\r
  13     },\r
  14 \r
  15     init: function(grid){\r
  16         Ext.applyIf(grid.colModel, this.config);\r
  17         Ext.apply(grid.getView(), this.viewConfig);\r
  18     },\r
  19 \r
  20     viewConfig: {\r
  21         initTemplates: function(){\r
  22             this.constructor.prototype.initTemplates.apply(this, arguments);\r
  23             var ts = this.templates || {};\r
  24             if(!ts.gcell){\r
  25                 ts.gcell = new Ext.XTemplate('<td class="x-grid3-hd x-grid3-gcell x-grid3-td-{id} ux-grid-hd-group-row-{row} {cls}" style="{style}">', '<div {tooltip} class="x-grid3-hd-inner x-grid3-hd-{id}" unselectable="on" style="{istyle}">', this.grid.enableHdMenu ? '<a class="x-grid3-hd-btn" href="#"></a>' : '', '{value}</div></td>');\r
  26             }\r
  27             this.templates = ts;\r
  28             this.hrowRe = new RegExp("ux-grid-hd-group-row-(\\d+)", "");\r
  29         },\r
  30 \r
  31         renderHeaders: function(){\r
  32             var ts = this.templates, headers = [], cm = this.cm, rows = cm.rows, tstyle = 'width:' + this.getTotalWidth() + ';';\r
  33 \r
  34             for(var row = 0, rlen = rows.length; row < rlen; row++){\r
  35                 var r = rows[row], cells = [];\r
  36                 for(var i = 0, gcol = 0, len = r.length; i < len; i++){\r
  37                     var group = r[i];\r
  38                     group.colspan = group.colspan || 1;\r
  39                     var id = this.getColumnId(group.dataIndex ? cm.findColumnIndex(group.dataIndex) : gcol), gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol);\r
  40                     cells[i] = ts.gcell.apply({\r
  41                         cls: 'ux-grid-hd-group-cell',\r
  42                         id: id,\r
  43                         row: row,\r
  44                         style: 'width:' + gs.width + ';' + (gs.hidden ? 'display:none;' : '') + (group.align ? 'text-align:' + group.align + ';' : ''),\r
  45                         tooltip: group.tooltip ? (Ext.QuickTips.isEnabled() ? 'ext:qtip' : 'title') + '="' + group.tooltip + '"' : '',\r
  46                         istyle: group.align == 'right' ? 'padding-right:16px' : '',\r
  47                         btn: this.grid.enableHdMenu && group.header,\r
  48                         value: group.header || '&nbsp;'\r
  49                     });\r
  50                     gcol += group.colspan;\r
  51                 }\r
  52                 headers[row] = ts.header.apply({\r
  53                     tstyle: tstyle,\r
  54                     cells: cells.join('')\r
  55                 });\r
  56             }\r
  57             headers.push(this.constructor.prototype.renderHeaders.apply(this, arguments));\r
  58             return headers.join('');\r
  59         },\r
  60 \r
  61         onColumnWidthUpdated: function(){\r
  62             this.constructor.prototype.onColumnWidthUpdated.apply(this, arguments);\r
  63             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);\r
  64         },\r
  65 \r
  66         onAllColumnWidthsUpdated: function(){\r
  67             this.constructor.prototype.onAllColumnWidthsUpdated.apply(this, arguments);\r
  68             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);\r
  69         },\r
  70 \r
  71         onColumnHiddenUpdated: function(){\r
  72             this.constructor.prototype.onColumnHiddenUpdated.apply(this, arguments);\r
  73             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);\r
  74         },\r
  75 \r
  76         getHeaderCell: function(index){\r
  77             return this.mainHd.query(this.cellSelector)[index];\r
  78         },\r
  79 \r
  80         findHeaderCell: function(el){\r
  81             return el ? this.fly(el).findParent('td.x-grid3-hd', this.cellSelectorDepth) : false;\r
  82         },\r
  83 \r
  84         findHeaderIndex: function(el){\r
  85             var cell = this.findHeaderCell(el);\r
  86             return cell ? this.getCellIndex(cell) : false;\r
  87         },\r
  88 \r
  89         updateSortIcon: function(col, dir){\r
  90             var sc = this.sortClasses, hds = this.mainHd.select(this.cellSelector).removeClass(sc);\r
  91             hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);\r
  92         },\r
  93 \r
  94         handleHdDown: function(e, t){\r
  95             var el = Ext.get(t);\r
  96             if(el.hasClass('x-grid3-hd-btn')){\r
  97                 e.stopEvent();\r
  98                 var hd = this.findHeaderCell(t);\r
  99                 Ext.fly(hd).addClass('x-grid3-hd-menu-open');\r
 100                 var index = this.getCellIndex(hd);\r
 101                 this.hdCtxIndex = index;\r
 102                 var ms = this.hmenu.items, cm = this.cm;\r
 103                 ms.get('asc').setDisabled(!cm.isSortable(index));\r
 104                 ms.get('desc').setDisabled(!cm.isSortable(index));\r
 105                 this.hmenu.on('hide', function(){\r
 106                     Ext.fly(hd).removeClass('x-grid3-hd-menu-open');\r
 107                 }, this, {\r
 108                     single: true\r
 109                 });\r
 110                 this.hmenu.show(t, 'tl-bl?');\r
 111             }else if(el.hasClass('ux-grid-hd-group-cell') || Ext.fly(t).up('.ux-grid-hd-group-cell')){\r
 112                 e.stopEvent();\r
 113             }\r
 114         },\r
 115 \r
 116         handleHdMove: function(e, t){\r
 117             var hd = this.findHeaderCell(this.activeHdRef);\r
 118             if(hd && !this.headersDisabled && !Ext.fly(hd).hasClass('ux-grid-hd-group-cell')){\r
 119                 var hw = this.splitHandleWidth || 5, r = this.activeHdRegion, x = e.getPageX(), ss = hd.style, cur = '';\r
 120                 if(this.grid.enableColumnResize !== false){\r
 121                     if(x - r.left <= hw && this.cm.isResizable(this.activeHdIndex - 1)){\r
 122                         cur = Ext.isAir ? 'move' : Ext.isWebKit ? 'e-resize' : 'col-resize'; // col-resize\r
 123                                                                                                 // not\r
 124                                                                                                 // always\r
 125                                                                                                 // supported\r
 126                     }else if(r.right - x <= (!this.activeHdBtn ? hw : 2) && this.cm.isResizable(this.activeHdIndex)){\r
 127                         cur = Ext.isAir ? 'move' : Ext.isWebKit ? 'w-resize' : 'col-resize';\r
 128                     }\r
 129                 }\r
 130                 ss.cursor = cur;\r
 131             }\r
 132         },\r
 133 \r
 134         handleHdOver: function(e, t){\r
 135             var hd = this.findHeaderCell(t);\r
 136             if(hd && !this.headersDisabled){\r
 137                 this.activeHdRef = t;\r
 138                 this.activeHdIndex = this.getCellIndex(hd);\r
 139                 var fly = this.fly(hd);\r
 140                 this.activeHdRegion = fly.getRegion();\r
 141                 if(!(this.cm.isMenuDisabled(this.activeHdIndex) || fly.hasClass('ux-grid-hd-group-cell'))){\r
 142                     fly.addClass('x-grid3-hd-over');\r
 143                     this.activeHdBtn = fly.child('.x-grid3-hd-btn');\r
 144                     if(this.activeHdBtn){\r
 145                         this.activeHdBtn.dom.style.height = (hd.firstChild.offsetHeight - 1) + 'px';\r
 146                     }\r
 147                 }\r
 148             }\r
 149         },\r
 150 \r
 151         handleHdOut: function(e, t){\r
 152             var hd = this.findHeaderCell(t);\r
 153             if(hd && (!Ext.isIE || !e.within(hd, true))){\r
 154                 this.activeHdRef = null;\r
 155                 this.fly(hd).removeClass('x-grid3-hd-over');\r
 156                 hd.style.cursor = '';\r
 157             }\r
 158         },\r
 159 \r
 160         handleHdMenuClick: function(item){\r
 161             var index = this.hdCtxIndex, cm = this.cm, ds = this.ds, id = item.getItemId();\r
 162             switch(id){\r
 163                 case 'asc':\r
 164                     ds.sort(cm.getDataIndex(index), 'ASC');\r
 165                     break;\r
 166                 case 'desc':\r
 167                     ds.sort(cm.getDataIndex(index), 'DESC');\r
 168                     break;\r
 169                 default:\r
 170                     if(id.substr(0, 5) == 'group'){\r
 171                         var i = id.split('-'), row = parseInt(i[1], 10), col = parseInt(i[2], 10), r = this.cm.rows[row], group, gcol = 0;\r
 172                         for(var i = 0, len = r.length; i < len; i++){\r
 173                             group = r[i];\r
 174                             if(col >= gcol && col < gcol + group.colspan){\r
 175                                 break;\r
 176                             }\r
 177                             gcol += group.colspan;\r
 178                         }\r
 179                         if(item.checked){\r
 180                             var max = cm.getColumnsBy(this.isHideableColumn, this).length;\r
 181                             for(var i = gcol, len = gcol + group.colspan; i < len; i++){\r
 182                                 if(!cm.isHidden(i)){\r
 183                                     max--;\r
 184                                 }\r
 185                             }\r
 186                             if(max < 1){\r
 187                                 this.onDenyColumnHide();\r
 188                                 return false;\r
 189                             }\r
 190                         }\r
 191                         for(var i = gcol, len = gcol + group.colspan; i < len; i++){\r
 192                             if(cm.config[i].fixed !== true && cm.config[i].hideable !== false){\r
 193                                 cm.setHidden(i, item.checked);\r
 194                             }\r
 195                         }\r
 196                     }else{\r
 197                         index = cm.getIndexById(id.substr(4));\r
 198                         if(index != -1){\r
 199                             if(item.checked && cm.getColumnsBy(this.isHideableColumn, this).length <= 1){\r
 200                                 this.onDenyColumnHide();\r
 201                                 return false;\r
 202                             }\r
 203                             cm.setHidden(index, item.checked);\r
 204                         }\r
 205                     }\r
 206                     item.checked = !item.checked;\r
 207                     if(item.menu){\r
 208                         var updateChildren = function(menu){\r
 209                             menu.items.each(function(childItem){\r
 210                                 if(!childItem.disabled){\r
 211                                     childItem.setChecked(item.checked, false);\r
 212                                     if(childItem.menu){\r
 213                                         updateChildren(childItem.menu);\r
 214                                     }\r
 215                                 }\r
 216                             });\r
 217                         }\r
 218                         updateChildren(item.menu);\r
 219                     }\r
 220                     var parentMenu = item, parentItem;\r
 221                     while(parentMenu = parentMenu.parentMenu){\r
 222                         if(!parentMenu.parentMenu || !(parentItem = parentMenu.parentMenu.items.get(parentMenu.getItemId())) || !parentItem.setChecked){\r
 223                             break;\r
 224                         }\r
 225                         var checked = parentMenu.items.findIndexBy(function(m){\r
 226                             return m.checked;\r
 227                         }) >= 0;\r
 228                         parentItem.setChecked(checked, true);\r
 229                     }\r
 230                     item.checked = !item.checked;\r
 231             }\r
 232             return true;\r
 233         },\r
 234 \r
 235         beforeColMenuShow: function(){\r
 236             var cm = this.cm, rows = this.cm.rows;\r
 237             this.colMenu.removeAll();\r
 238             for(var col = 0, clen = cm.getColumnCount(); col < clen; col++){\r
 239                 var menu = this.colMenu, title = cm.getColumnHeader(col), text = [];\r
 240                 if(cm.config[col].fixed !== true && cm.config[col].hideable !== false){\r
 241                     for(var row = 0, rlen = rows.length; row < rlen; row++){\r
 242                         var r = rows[row], group, gcol = 0;\r
 243                         for(var i = 0, len = r.length; i < len; i++){\r
 244                             group = r[i];\r
 245                             if(col >= gcol && col < gcol + group.colspan){\r
 246                                 break;\r
 247                             }\r
 248                             gcol += group.colspan;\r
 249                         }\r
 250                         if(group && group.header){\r
 251                             if(cm.hierarchicalColMenu){\r
 252                                 var gid = 'group-' + row + '-' + gcol;\r
 253                                 var item = menu.items.item(gid);\r
 254                                 var submenu = item ? item.menu : null;\r
 255                                 if(!submenu){\r
 256                                     submenu = new Ext.menu.Menu({\r
 257                                         itemId: gid\r
 258                                     });\r
 259                                     submenu.on("itemclick", this.handleHdMenuClick, this);\r
 260                                     var checked = false, disabled = true;\r
 261                                     for(var c = gcol, lc = gcol + group.colspan; c < lc; c++){\r
 262                                         if(!cm.isHidden(c)){\r
 263                                             checked = true;\r
 264                                         }\r
 265                                         if(cm.config[c].hideable !== false){\r
 266                                             disabled = false;\r
 267                                         }\r
 268                                     }\r
 269                                     menu.add({\r
 270                                         itemId: gid,\r
 271                                         text: group.header,\r
 272                                         menu: submenu,\r
 273                                         hideOnClick: false,\r
 274                                         checked: checked,\r
 275                                         disabled: disabled\r
 276                                     });\r
 277                                 }\r
 278                                 menu = submenu;\r
 279                             }else{\r
 280                                 text.push(group.header);\r
 281                             }\r
 282                         }\r
 283                     }\r
 284                     text.push(title);\r
 285                     menu.add(new Ext.menu.CheckItem({\r
 286                         itemId: "col-" + cm.getColumnId(col),\r
 287                         text: text.join(' '),\r
 288                         checked: !cm.isHidden(col),\r
 289                         hideOnClick: false,\r
 290                         disabled: cm.config[col].hideable === false\r
 291                     }));\r
 292                 }\r
 293             }\r
 294         },\r
 295 \r
 296         renderUI: function(){\r
 297             this.constructor.prototype.renderUI.apply(this, arguments);\r
 298             Ext.apply(this.columnDrop, Ext.ux.grid.ColumnHeaderGroup.prototype.columnDropConfig);\r
 299             Ext.apply(this.splitZone, Ext.ux.grid.ColumnHeaderGroup.prototype.splitZoneConfig);\r
 300         }\r
 301     },\r
 302 \r
 303     splitZoneConfig: {\r
 304         allowHeaderDrag: function(e){\r
 305             return !e.getTarget(null, null, true).hasClass('ux-grid-hd-group-cell');\r
 306         }\r
 307     },\r
 308 \r
 309     columnDropConfig: {\r
 310         getTargetFromEvent: function(e){\r
 311             var t = Ext.lib.Event.getTarget(e);\r
 312             return this.view.findHeaderCell(t);\r
 313         },\r
 314 \r
 315         positionIndicator: function(h, n, e){\r
 316             var data = Ext.ux.grid.ColumnHeaderGroup.prototype.getDragDropData.call(this, h, n, e);\r
 317             if(data === false){\r
 318                 return false;\r
 319             }\r
 320             var px = data.px + this.proxyOffsets[0];\r
 321             this.proxyTop.setLeftTop(px, data.r.top + this.proxyOffsets[1]);\r
 322             this.proxyTop.show();\r
 323             this.proxyBottom.setLeftTop(px, data.r.bottom);\r
 324             this.proxyBottom.show();\r
 325             return data.pt;\r
 326         },\r
 327 \r
 328         onNodeDrop: function(n, dd, e, data){\r
 329             var h = data.header;\r
 330             if(h != n){\r
 331                 var d = Ext.ux.grid.ColumnHeaderGroup.prototype.getDragDropData.call(this, h, n, e);\r
 332                 if(d === false){\r
 333                     return false;\r
 334                 }\r
 335                 var cm = this.grid.colModel, right = d.oldIndex < d.newIndex, rows = cm.rows;\r
 336                 for(var row = d.row, rlen = rows.length; row < rlen; row++){\r
 337                     var r = rows[row], len = r.length, fromIx = 0, span = 1, toIx = len;\r
 338                     for(var i = 0, gcol = 0; i < len; i++){\r
 339                         var group = r[i];\r
 340                         if(d.oldIndex >= gcol && d.oldIndex < gcol + group.colspan){\r
 341                             fromIx = i;\r
 342                         }\r
 343                         if(d.oldIndex + d.colspan - 1 >= gcol && d.oldIndex + d.colspan - 1 < gcol + group.colspan){\r
 344                             span = i - fromIx + 1;\r
 345                         }\r
 346                         if(d.newIndex >= gcol && d.newIndex < gcol + group.colspan){\r
 347                             toIx = i;\r
 348                         }\r
 349                         gcol += group.colspan;\r
 350                     }\r
 351                     var groups = r.splice(fromIx, span);\r
 352                     rows[row] = r.splice(0, toIx - (right ? span : 0)).concat(groups).concat(r);\r
 353                 }\r
 354                 for(var c = 0; c < d.colspan; c++){\r
 355                     var oldIx = d.oldIndex + (right ? 0 : c), newIx = d.newIndex + (right ? -1 : c);\r
 356                     cm.moveColumn(oldIx, newIx);\r
 357                     this.grid.fireEvent("columnmove", oldIx, newIx);\r
 358                 }\r
 359                 return true;\r
 360             }\r
 361             return false;\r
 362         }\r
 363     },\r
 364 \r
 365     getGroupStyle: function(group, gcol){\r
 366         var width = 0, hidden = true;\r
 367         for(var i = gcol, len = gcol + group.colspan; i < len; i++){\r
 368             if(!this.cm.isHidden(i)){\r
 369                 var cw = this.cm.getColumnWidth(i);\r
 370                 if(typeof cw == 'number'){\r
 371                     width += cw;\r
 372                 }\r
 373                 hidden = false;\r
 374             }\r
 375         }\r
 376         return {\r
 377             width: (Ext.isBorderBox || (Ext.isWebKit && !Ext.isSafari2) ? width : Math.max(width - this.borderWidth, 0)) + 'px',\r
 378             hidden: hidden\r
 379         };\r
 380     },\r
 381 \r
 382     updateGroupStyles: function(col){\r
 383         var tables = this.mainHd.query('.x-grid3-header-offset > table'), tw = this.getTotalWidth(), rows = this.cm.rows;\r
 384         for(var row = 0; row < tables.length; row++){\r
 385             tables[row].style.width = tw;\r
 386             if(row < rows.length){\r
 387                 var cells = tables[row].firstChild.firstChild.childNodes;\r
 388                 for(var i = 0, gcol = 0; i < cells.length; i++){\r
 389                     var group = rows[row][i];\r
 390                     if((typeof col != 'number') || (col >= gcol && col < gcol + group.colspan)){\r
 391                         var gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol);\r
 392                         cells[i].style.width = gs.width;\r
 393                         cells[i].style.display = gs.hidden ? 'none' : '';\r
 394                     }\r
 395                     gcol += group.colspan;\r
 396                 }\r
 397             }\r
 398         }\r
 399     },\r
 400 \r
 401     getGroupRowIndex: function(el){\r
 402         if(el){\r
 403             var m = el.className.match(this.hrowRe);\r
 404             if(m && m[1]){\r
 405                 return parseInt(m[1], 10);\r
 406             }\r
 407         }\r
 408         return this.cm.rows.length;\r
 409     },\r
 410 \r
 411     getGroupSpan: function(row, col){\r
 412         if(row < 0){\r
 413             return {\r
 414                 col: 0,\r
 415                 colspan: this.cm.getColumnCount()\r
 416             };\r
 417         }\r
 418         var r = this.cm.rows[row];\r
 419         if(r){\r
 420             for(var i = 0, gcol = 0, len = r.length; i < len; i++){\r
 421                 var group = r[i];\r
 422                 if(col >= gcol && col < gcol + group.colspan){\r
 423                     return {\r
 424                         col: gcol,\r
 425                         colspan: group.colspan\r
 426                     };\r
 427                 }\r
 428                 gcol += group.colspan;\r
 429             }\r
 430             return {\r
 431                 col: gcol,\r
 432                 colspan: 0\r
 433             };\r
 434         }\r
 435         return {\r
 436             col: col,\r
 437             colspan: 1\r
 438         };\r
 439     },\r
 440 \r
 441     getDragDropData: function(h, n, e){\r
 442         if(h.parentNode != n.parentNode){\r
 443             return false;\r
 444         }\r
 445         var cm = this.grid.colModel, x = Ext.lib.Event.getPageX(e), r = Ext.lib.Dom.getRegion(n.firstChild), px, pt;\r
 446         if((r.right - x) <= (r.right - r.left) / 2){\r
 447             px = r.right + this.view.borderWidth;\r
 448             pt = "after";\r
 449         }else{\r
 450             px = r.left;\r
 451             pt = "before";\r
 452         }\r
 453         var oldIndex = this.view.getCellIndex(h), newIndex = this.view.getCellIndex(n);\r
 454         if(cm.isFixed(newIndex)){\r
 455             return false;\r
 456         }\r
 457         var row = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupRowIndex.call(this.view, h),\r
 458             oldGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row, oldIndex),\r
 459             newGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row, newIndex),\r
 460             oldIndex = oldGroup.col;\r
 461             newIndex = newGroup.col + (pt == "after" ? newGroup.colspan : 0);\r
 462         if(newIndex >= oldGroup.col && newIndex <= oldGroup.col + oldGroup.colspan){\r
 463             return false;\r
 464         }\r
 465         var parentGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row - 1, oldIndex);\r
 466         if(newIndex < parentGroup.col || newIndex > parentGroup.col + parentGroup.colspan){\r
 467             return false;\r
 468         }\r
 469         return {\r
 470             r: r,\r
 471             px: px,\r
 472             pt: pt,\r
 473             row: row,\r
 474             oldIndex: oldIndex,\r
 475             newIndex: newIndex,\r
 476             colspan: oldGroup.colspan\r
 477         };\r
 478     }\r
 479 });