examples/ux/ColumnHeaderGroup.js

   1 /*!
   2  * Ext JS Library 3.2.0
   3  * Copyright(c) 2006-2010 Ext JS, Inc.
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 Ext.ns('Ext.ux.grid');
   8
   9 Ext.ux.grid.ColumnHeaderGroup = Ext.extend(Ext.util.Observable, {
  10
  11     constructor: function(config){
  12         this.config = config;
  13     },
  14
  15     init: function(grid){
  16         Ext.applyIf(grid.colModel, this.config);
  17         Ext.apply(grid.getView(), this.viewConfig);
  18     },
  19
  20     viewConfig: {
  21         initTemplates: function(){
  22             this.constructor.prototype.initTemplates.apply(this, arguments);
  23             var ts = this.templates || {};
  24             if(!ts.gcell){
  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>');
  26             }
  27             this.templates = ts;
  28             this.hrowRe = new RegExp("ux-grid-hd-group-row-(\\d+)", "");
  29         },
  30
  31         renderHeaders: function(){
  32             var ts = this.templates, headers = [], cm = this.cm, rows = cm.rows, tstyle = 'width:' + this.getTotalWidth() + ';';
  33
  34             for(var row = 0, rlen = rows.length; row < rlen; row++){
  35                 var r = rows[row], cells = [];
  36                 for(var i = 0, gcol = 0, len = r.length; i < len; i++){
  37                     var group = r[i];
  38                     group.colspan = group.colspan || 1;
  39                     var id = this.getColumnId(group.dataIndex ? cm.findColumnIndex(group.dataIndex) : gcol), gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol);
  40                     cells[i] = ts.gcell.apply({
  41                         cls: 'ux-grid-hd-group-cell',
  42                         id: id,
  43                         row: row,
  44                         style: 'width:' + gs.width + ';' + (gs.hidden ? 'display:none;' : '') + (group.align ? 'text-align:' + group.align + ';' : ''),
  45                         tooltip: group.tooltip ? (Ext.QuickTips.isEnabled() ? 'ext:qtip' : 'title') + '="' + group.tooltip + '"' : '',
  46                         istyle: group.align == 'right' ? 'padding-right:16px' : '',
  47                         btn: this.grid.enableHdMenu && group.header,
  48                         value: group.header || '&nbsp;'
  49                     });
  50                     gcol += group.colspan;
  51                 }
  52                 headers[row] = ts.header.apply({
  53                     tstyle: tstyle,
  54                     cells: cells.join('')
  55                 });
  56             }
  57             headers.push(this.constructor.prototype.renderHeaders.apply(this, arguments));
  58             return headers.join('');
  59         },
  60
  61         onColumnWidthUpdated: function(){
  62             this.constructor.prototype.onColumnWidthUpdated.apply(this, arguments);
  63             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);
  64         },
  65
  66         onAllColumnWidthsUpdated: function(){
  67             this.constructor.prototype.onAllColumnWidthsUpdated.apply(this, arguments);
  68             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);
  69         },
  70
  71         onColumnHiddenUpdated: function(){
  72             this.constructor.prototype.onColumnHiddenUpdated.apply(this, arguments);
  73             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);
  74         },
  75
  76         getHeaderCell: function(index){
  77             return this.mainHd.query(this.cellSelector)[index];
  78         },
  79
  80         findHeaderCell: function(el){
  81             return el ? this.fly(el).findParent('td.x-grid3-hd', this.cellSelectorDepth) : false;
  82         },
  83
  84         findHeaderIndex: function(el){
  85             var cell = this.findHeaderCell(el);
  86             return cell ? this.getCellIndex(cell) : false;
  87         },
  88
  89         updateSortIcon: function(col, dir){
  90             var sc = this.sortClasses, hds = this.mainHd.select(this.cellSelector).removeClass(sc);
  91             hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);
  92         },
  93
  94         handleHdDown: function(e, t){
  95             var el = Ext.get(t);
  96             if(el.hasClass('x-grid3-hd-btn')){
  97                 e.stopEvent();
  98                 var hd = this.findHeaderCell(t);
  99                 Ext.fly(hd).addClass('x-grid3-hd-menu-open');
 100                 var index = this.getCellIndex(hd);
 101                 this.hdCtxIndex = index;
 102                 var ms = this.hmenu.items, cm = this.cm;
 103                 ms.get('asc').setDisabled(!cm.isSortable(index));
 104                 ms.get('desc').setDisabled(!cm.isSortable(index));
 105                 this.hmenu.on('hide', function(){
 106                     Ext.fly(hd).removeClass('x-grid3-hd-menu-open');
 107                 }, this, {
 108                     single: true
 109                 });
 110                 this.hmenu.show(t, 'tl-bl?');
 111             }else if(el.hasClass('ux-grid-hd-group-cell') || Ext.fly(t).up('.ux-grid-hd-group-cell')){
 112                 e.stopEvent();
 113             }
 114         },
 115
 116         handleHdMove: function(e, t){
 117             var hd = this.findHeaderCell(this.activeHdRef);
 118             if(hd && !this.headersDisabled && !Ext.fly(hd).hasClass('ux-grid-hd-group-cell')){
 119                 var hw = this.splitHandleWidth || 5, r = this.activeHdRegion, x = e.getPageX(), ss = hd.style, cur = '';
 120                 if(this.grid.enableColumnResize !== false){
 121                     if(x - r.left <= hw && this.cm.isResizable(this.activeHdIndex - 1)){
 122                         cur = Ext.isAir ? 'move' : Ext.isWebKit ? 'e-resize' : 'col-resize'; // col-resize
 123                                                                                                 // not
 124                                                                                                 // always
 125                                                                                                 // supported
 126                     }else if(r.right - x <= (!this.activeHdBtn ? hw : 2) && this.cm.isResizable(this.activeHdIndex)){
 127                         cur = Ext.isAir ? 'move' : Ext.isWebKit ? 'w-resize' : 'col-resize';
 128                     }
 129                 }
 130                 ss.cursor = cur;
 131             }
 132         },
 133
 134         handleHdOver: function(e, t){
 135             var hd = this.findHeaderCell(t);
 136             if(hd && !this.headersDisabled){
 137                 this.activeHdRef = t;
 138                 this.activeHdIndex = this.getCellIndex(hd);
 139                 var fly = this.fly(hd);
 140                 this.activeHdRegion = fly.getRegion();
 141                 if(!(this.cm.isMenuDisabled(this.activeHdIndex) || fly.hasClass('ux-grid-hd-group-cell'))){
 142                     fly.addClass('x-grid3-hd-over');
 143                     this.activeHdBtn = fly.child('.x-grid3-hd-btn');
 144                     if(this.activeHdBtn){
 145                         this.activeHdBtn.dom.style.height = (hd.firstChild.offsetHeight - 1) + 'px';
 146                     }
 147                 }
 148             }
 149         },
 150
 151         handleHdOut: function(e, t){
 152             var hd = this.findHeaderCell(t);
 153             if(hd && (!Ext.isIE || !e.within(hd, true))){
 154                 this.activeHdRef = null;
 155                 this.fly(hd).removeClass('x-grid3-hd-over');
 156                 hd.style.cursor = '';
 157             }
 158         },
 159
 160         handleHdMenuClick: function(item){
 161             var index = this.hdCtxIndex, cm = this.cm, ds = this.ds, id = item.getItemId();
 162             switch(id){
 163                 case 'asc':
 164                     ds.sort(cm.getDataIndex(index), 'ASC');
 165                     break;
 166                 case 'desc':
 167                     ds.sort(cm.getDataIndex(index), 'DESC');
 168                     break;
 169                 default:
 170                     if(id.substr(0, 5) == 'group'){
 171                         var i = id.split('-'), row = parseInt(i[1], 10), col = parseInt(i[2], 10), r = this.cm.rows[row], group, gcol = 0;
 172                         for(var i = 0, len = r.length; i < len; i++){
 173                             group = r[i];
 174                             if(col >= gcol && col < gcol + group.colspan){
 175                                 break;
 176                             }
 177                             gcol += group.colspan;
 178                         }
 179                         if(item.checked){
 180                             var max = cm.getColumnsBy(this.isHideableColumn, this).length;
 181                             for(var i = gcol, len = gcol + group.colspan; i < len; i++){
 182                                 if(!cm.isHidden(i)){
 183                                     max--;
 184                                 }
 185                             }
 186                             if(max < 1){
 187                                 this.onDenyColumnHide();
 188                                 return false;
 189                             }
 190                         }
 191                         for(var i = gcol, len = gcol + group.colspan; i < len; i++){
 192                             if(cm.config[i].fixed !== true && cm.config[i].hideable !== false){
 193                                 cm.setHidden(i, item.checked);
 194                             }
 195                         }
 196                     }else{
 197                         index = cm.getIndexById(id.substr(4));
 198                         if(index != -1){
 199                             if(item.checked && cm.getColumnsBy(this.isHideableColumn, this).length <= 1){
 200                                 this.onDenyColumnHide();
 201                                 return false;
 202                             }
 203                             cm.setHidden(index, item.checked);
 204                         }
 205                     }
 206                     item.checked = !item.checked;
 207                     if(item.menu){
 208                         var updateChildren = function(menu){
 209                             menu.items.each(function(childItem){
 210                                 if(!childItem.disabled){
 211                                     childItem.setChecked(item.checked, false);
 212                                     if(childItem.menu){
 213                                         updateChildren(childItem.menu);
 214                                     }
 215                                 }
 216                             });
 217                         }
 218                         updateChildren(item.menu);
 219                     }
 220                     var parentMenu = item, parentItem;
 221                     while(parentMenu = parentMenu.parentMenu){
 222                         if(!parentMenu.parentMenu || !(parentItem = parentMenu.parentMenu.items.get(parentMenu.getItemId())) || !parentItem.setChecked){
 223                             break;
 224                         }
 225                         var checked = parentMenu.items.findIndexBy(function(m){
 226                             return m.checked;
 227                         }) >= 0;
 228                         parentItem.setChecked(checked, true);
 229                     }
 230                     item.checked = !item.checked;
 231             }
 232             return true;
 233         },
 234
 235         beforeColMenuShow: function(){
 236             var cm = this.cm, rows = this.cm.rows;
 237             this.colMenu.removeAll();
 238             for(var col = 0, clen = cm.getColumnCount(); col < clen; col++){
 239                 var menu = this.colMenu, title = cm.getColumnHeader(col), text = [];
 240                 if(cm.config[col].fixed !== true && cm.config[col].hideable !== false){
 241                     for(var row = 0, rlen = rows.length; row < rlen; row++){
 242                         var r = rows[row], group, gcol = 0;
 243                         for(var i = 0, len = r.length; i < len; i++){
 244                             group = r[i];
 245                             if(col >= gcol && col < gcol + group.colspan){
 246                                 break;
 247                             }
 248                             gcol += group.colspan;
 249                         }
 250                         if(group && group.header){
 251                             if(cm.hierarchicalColMenu){
 252                                 var gid = 'group-' + row + '-' + gcol;
 253                                 var item = menu.items.item(gid);
 254                                 var submenu = item ? item.menu : null;
 255                                 if(!submenu){
 256                                     submenu = new Ext.menu.Menu({
 257                                         itemId: gid
 258                                     });
 259                                     submenu.on("itemclick", this.handleHdMenuClick, this);
 260                                     var checked = false, disabled = true;
 261                                     for(var c = gcol, lc = gcol + group.colspan; c < lc; c++){
 262                                         if(!cm.isHidden(c)){
 263                                             checked = true;
 264                                         }
 265                                         if(cm.config[c].hideable !== false){
 266                                             disabled = false;
 267                                         }
 268                                     }
 269                                     menu.add({
 270                                         itemId: gid,
 271                                         text: group.header,
 272                                         menu: submenu,
 273                                         hideOnClick: false,
 274                                         checked: checked,
 275                                         disabled: disabled
 276                                     });
 277                                 }
 278                                 menu = submenu;
 279                             }else{
 280                                 text.push(group.header);
 281                             }
 282                         }
 283                     }
 284                     text.push(title);
 285                     menu.add(new Ext.menu.CheckItem({
 286                         itemId: "col-" + cm.getColumnId(col),
 287                         text: text.join(' '),
 288                         checked: !cm.isHidden(col),
 289                         hideOnClick: false,
 290                         disabled: cm.config[col].hideable === false
 291                     }));
 292                 }
 293             }
 294         },
 295
 296         renderUI: function(){
 297             this.constructor.prototype.renderUI.apply(this, arguments);
 298             Ext.apply(this.columnDrop, Ext.ux.grid.ColumnHeaderGroup.prototype.columnDropConfig);
 299             Ext.apply(this.splitZone, Ext.ux.grid.ColumnHeaderGroup.prototype.splitZoneConfig);
 300         }
 301     },
 302
 303     splitZoneConfig: {
 304         allowHeaderDrag: function(e){
 305             return !e.getTarget(null, null, true).hasClass('ux-grid-hd-group-cell');
 306         }
 307     },
 308
 309     columnDropConfig: {
 310         getTargetFromEvent: function(e){
 311             var t = Ext.lib.Event.getTarget(e);
 312             return this.view.findHeaderCell(t);
 313         },
 314
 315         positionIndicator: function(h, n, e){
 316             var data = Ext.ux.grid.ColumnHeaderGroup.prototype.getDragDropData.call(this, h, n, e);
 317             if(data === false){
 318                 return false;
 319             }
 320             var px = data.px + this.proxyOffsets[0];
 321             this.proxyTop.setLeftTop(px, data.r.top + this.proxyOffsets[1]);
 322             this.proxyTop.show();
 323             this.proxyBottom.setLeftTop(px, data.r.bottom);
 324             this.proxyBottom.show();
 325             return data.pt;
 326         },
 327
 328         onNodeDrop: function(n, dd, e, data){
 329             var h = data.header;
 330             if(h != n){
 331                 var d = Ext.ux.grid.ColumnHeaderGroup.prototype.getDragDropData.call(this, h, n, e);
 332                 if(d === false){
 333                     return false;
 334                 }
 335                 var cm = this.grid.colModel, right = d.oldIndex < d.newIndex, rows = cm.rows;
 336                 for(var row = d.row, rlen = rows.length; row < rlen; row++){
 337                     var r = rows[row], len = r.length, fromIx = 0, span = 1, toIx = len;
 338                     for(var i = 0, gcol = 0; i < len; i++){
 339                         var group = r[i];
 340                         if(d.oldIndex >= gcol && d.oldIndex < gcol + group.colspan){
 341                             fromIx = i;
 342                         }
 343                         if(d.oldIndex + d.colspan - 1 >= gcol && d.oldIndex + d.colspan - 1 < gcol + group.colspan){
 344                             span = i - fromIx + 1;
 345                         }
 346                         if(d.newIndex >= gcol && d.newIndex < gcol + group.colspan){
 347                             toIx = i;
 348                         }
 349                         gcol += group.colspan;
 350                     }
 351                     var groups = r.splice(fromIx, span);
 352                     rows[row] = r.splice(0, toIx - (right ? span : 0)).concat(groups).concat(r);
 353                 }
 354                 for(var c = 0; c < d.colspan; c++){
 355                     var oldIx = d.oldIndex + (right ? 0 : c), newIx = d.newIndex + (right ? -1 : c);
 356                     cm.moveColumn(oldIx, newIx);
 357                     this.grid.fireEvent("columnmove", oldIx, newIx);
 358                 }
 359                 return true;
 360             }
 361             return false;
 362         }
 363     },
 364
 365     getGroupStyle: function(group, gcol){
 366         var width = 0, hidden = true;
 367         for(var i = gcol, len = gcol + group.colspan; i < len; i++){
 368             if(!this.cm.isHidden(i)){
 369                 var cw = this.cm.getColumnWidth(i);
 370                 if(typeof cw == 'number'){
 371                     width += cw;
 372                 }
 373                 hidden = false;
 374             }
 375         }
 376         return {
 377             width: (Ext.isBorderBox || (Ext.isWebKit && !Ext.isSafari2) ? width : Math.max(width - this.borderWidth, 0)) + 'px',
 378             hidden: hidden
 379         };
 380     },
 381
 382     updateGroupStyles: function(col){
 383         var tables = this.mainHd.query('.x-grid3-header-offset > table'), tw = this.getTotalWidth(), rows = this.cm.rows;
 384         for(var row = 0; row < tables.length; row++){
 385             tables[row].style.width = tw;
 386             if(row < rows.length){
 387                 var cells = tables[row].firstChild.firstChild.childNodes;
 388                 for(var i = 0, gcol = 0; i < cells.length; i++){
 389                     var group = rows[row][i];
 390                     if((typeof col != 'number') || (col >= gcol && col < gcol + group.colspan)){
 391                         var gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol);
 392                         cells[i].style.width = gs.width;
 393                         cells[i].style.display = gs.hidden ? 'none' : '';
 394                     }
 395                     gcol += group.colspan;
 396                 }
 397             }
 398         }
 399     },
 400
 401     getGroupRowIndex: function(el){
 402         if(el){
 403             var m = el.className.match(this.hrowRe);
 404             if(m && m[1]){
 405                 return parseInt(m[1], 10);
 406             }
 407         }
 408         return this.cm.rows.length;
 409     },
 410
 411     getGroupSpan: function(row, col){
 412         if(row < 0){
 413             return {
 414                 col: 0,
 415                 colspan: this.cm.getColumnCount()
 416             };
 417         }
 418         var r = this.cm.rows[row];
 419         if(r){
 420             for(var i = 0, gcol = 0, len = r.length; i < len; i++){
 421                 var group = r[i];
 422                 if(col >= gcol && col < gcol + group.colspan){
 423                     return {
 424                         col: gcol,
 425                         colspan: group.colspan
 426                     };
 427                 }
 428                 gcol += group.colspan;
 429             }
 430             return {
 431                 col: gcol,
 432                 colspan: 0
 433             };
 434         }
 435         return {
 436             col: col,
 437             colspan: 1
 438         };
 439     },
 440
 441     getDragDropData: function(h, n, e){
 442         if(h.parentNode != n.parentNode){
 443             return false;
 444         }
 445         var cm = this.grid.colModel, x = Ext.lib.Event.getPageX(e), r = Ext.lib.Dom.getRegion(n.firstChild), px, pt;
 446         if((r.right - x) <= (r.right - r.left) / 2){
 447             px = r.right + this.view.borderWidth;
 448             pt = "after";
 449         }else{
 450             px = r.left;
 451             pt = "before";
 452         }
 453         var oldIndex = this.view.getCellIndex(h), newIndex = this.view.getCellIndex(n);
 454         if(cm.isFixed(newIndex)){
 455             return false;
 456         }
 457         var row = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupRowIndex.call(this.view, h),
 458             oldGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row, oldIndex),
 459             newGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row, newIndex),
 460             oldIndex = oldGroup.col;
 461             newIndex = newGroup.col + (pt == "after" ? newGroup.colspan : 0);
 462         if(newIndex >= oldGroup.col && newIndex <= oldGroup.col + oldGroup.colspan){
 463             return false;
 464         }
 465         var parentGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row - 1, oldIndex);
 466         if(newIndex < parentGroup.col || newIndex > parentGroup.col + parentGroup.colspan){
 467             return false;
 468         }
 469         return {
 470             r: r,
 471             px: px,
 472             pt: pt,
 473             row: row,
 474             oldIndex: oldIndex,
 475             newIndex: newIndex,
 476             colspan: oldGroup.colspan
 477         };
 478     }
 479 });