examples/docs/source/TreeGrid.html

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   2 <head>
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   4   <title>The source code</title>
   5     <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
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   9     <pre class="prettyprint lang-js">/*!
  10  * Ext JS Library 3.3.1
  11  * Copyright(c) 2006-2010 Sencha Inc.
  12  * licensing@sencha.com
  13  * http://www.sencha.com/license
  14  */
  15 <div id="cls-Ext.ux.tree.TreeGrid"></div>/**
  16  * @class Ext.ux.tree.TreeGrid
  17  * @extends Ext.tree.TreePanel
  18  *
  19  * @xtype treegrid
  20  */
  21 Ext.ux.tree.TreeGrid = Ext.extend(Ext.tree.TreePanel, {
  22     rootVisible : false,
  23     useArrows : true,
  24     lines : false,
  25     borderWidth : Ext.isBorderBox ? 0 : 2, // the combined left/right border for each cell
  26     cls : 'x-treegrid',
  27
  28     columnResize : true,
  29     enableSort : true,
  30     reserveScrollOffset : true,
  31     enableHdMenu : true,
  32
  33     columnsText : 'Columns',
  34
  35     initComponent : function() {
  36         if(!this.root) {
  37             this.root = new Ext.tree.AsyncTreeNode({text: 'Root'});
  38         }
  39
  40         // initialize the loader
  41         var l = this.loader;
  42         if(!l){
  43             l = new Ext.ux.tree.TreeGridLoader({
  44                 dataUrl: this.dataUrl,
  45                 requestMethod: this.requestMethod,
  46                 store: this.store
  47             });
  48         }else if(Ext.isObject(l) && !l.load){
  49             l = new Ext.ux.tree.TreeGridLoader(l);
  50         }
  51         this.loader = l;
  52
  53         Ext.ux.tree.TreeGrid.superclass.initComponent.call(this);
  54
  55         this.initColumns();
  56
  57         if(this.enableSort) {
  58             this.treeGridSorter = new Ext.ux.tree.TreeGridSorter(this, this.enableSort);
  59         }
  60
  61         if(this.columnResize){
  62             this.colResizer = new Ext.tree.ColumnResizer(this.columnResize);
  63             this.colResizer.init(this);
  64         }
  65
  66         var c = this.columns;
  67         if(!this.internalTpl){
  68             this.internalTpl = new Ext.XTemplate(
  69                 '<div class="x-grid3-header">',
  70                     '<div class="x-treegrid-header-inner">',
  71                         '<div class="x-grid3-header-offset">',
  72                             '<table style="table-layout: fixed;" cellspacing="0" cellpadding="0" border="0"><colgroup><tpl for="columns"><col /></tpl></colgroup>',
  73                             '<thead><tr class="x-grid3-hd-row">',
  74                             '<tpl for="columns">',
  75                             '<td class="x-grid3-hd x-grid3-cell x-treegrid-hd" style="text-align: {align};" id="', this.id, '-xlhd-{#}">',
  76                                 '<div class="x-grid3-hd-inner x-treegrid-hd-inner" unselectable="on">',
  77                                      this.enableHdMenu ? '<a class="x-grid3-hd-btn" href="#"></a>' : '',
  78                                      '{header}<img class="x-grid3-sort-icon" src="', Ext.BLANK_IMAGE_URL, '" />',
  79                                  '</div>',
  80                             '</td></tpl>',
  81                             '</tr></thead>',
  82                         '</table>',
  83                     '</div></div>',
  84                 '</div>',
  85                 '<div class="x-treegrid-root-node">',
  86                     '<table class="x-treegrid-root-table" cellpadding="0" cellspacing="0" style="table-layout: fixed;"></table>',
  87                 '</div>'
  88             );
  89         }
  90
  91         if(!this.colgroupTpl) {
  92             this.colgroupTpl = new Ext.XTemplate(
  93                 '<colgroup><tpl for="columns"><col style="width: {width}px"/></tpl></colgroup>'
  94             );
  95         }
  96     },
  97
  98     initColumns : function() {
  99         var cs = this.columns,
 100             len = cs.length,
 101             columns = [],
 102             i, c;
 103
 104         for(i = 0; i < len; i++){
 105             c = cs[i];
 106             if(!c.isColumn) {
 107                 c.xtype = c.xtype ? (/^tg/.test(c.xtype) ? c.xtype : 'tg' + c.xtype) : 'tgcolumn';
 108                 c = Ext.create(c);
 109             }
 110             c.init(this);
 111             columns.push(c);
 112
 113             if(this.enableSort !== false && c.sortable !== false) {
 114                 c.sortable = true;
 115                 this.enableSort = true;
 116             }
 117         }
 118
 119         this.columns = columns;
 120     },
 121
 122     onRender : function(){
 123         Ext.tree.TreePanel.superclass.onRender.apply(this, arguments);
 124
 125         this.el.addClass('x-treegrid');
 126
 127         this.outerCt = this.body.createChild({
 128             cls:'x-tree-root-ct x-treegrid-ct ' + (this.useArrows ? 'x-tree-arrows' : this.lines ? 'x-tree-lines' : 'x-tree-no-lines')
 129         });
 130
 131         this.internalTpl.overwrite(this.outerCt, {columns: this.columns});
 132
 133         this.mainHd = Ext.get(this.outerCt.dom.firstChild);
 134         this.innerHd = Ext.get(this.mainHd.dom.firstChild);
 135         this.innerBody = Ext.get(this.outerCt.dom.lastChild);
 136         this.innerCt = Ext.get(this.innerBody.dom.firstChild);
 137
 138         this.colgroupTpl.insertFirst(this.innerCt, {columns: this.columns});
 139
 140         if(this.hideHeaders){
 141             this.el.child('.x-grid3-header').setDisplayed('none');
 142         }
 143         else if(this.enableHdMenu !== false){
 144             this.hmenu = new Ext.menu.Menu({id: this.id + '-hctx'});
 145             if(this.enableColumnHide !== false){
 146                 this.colMenu = new Ext.menu.Menu({id: this.id + '-hcols-menu'});
 147                 this.colMenu.on({
 148                     scope: this,
 149                     beforeshow: this.beforeColMenuShow,
 150                     itemclick: this.handleHdMenuClick
 151                 });
 152                 this.hmenu.add({
 153                     itemId:'columns',
 154                     hideOnClick: false,
 155                     text: this.columnsText,
 156                     menu: this.colMenu,
 157                     iconCls: 'x-cols-icon'
 158                 });
 159             }
 160             this.hmenu.on('itemclick', this.handleHdMenuClick, this);
 161         }
 162     },
 163
 164     setRootNode : function(node){
 165         node.attributes.uiProvider = Ext.ux.tree.TreeGridRootNodeUI;
 166         node = Ext.ux.tree.TreeGrid.superclass.setRootNode.call(this, node);
 167         if(this.innerCt) {
 168             this.colgroupTpl.insertFirst(this.innerCt, {columns: this.columns});
 169         }
 170         return node;
 171     },
 172
 173     clearInnerCt : function(){
 174         if(Ext.isIE){
 175             var dom = this.innerCt.dom;
 176             while(dom.firstChild){
 177                 dom.removeChild(dom.firstChild);
 178             }
 179         }else{
 180             Ext.ux.tree.TreeGrid.superclass.clearInnerCt.call(this);
 181         }
 182     },
 183
 184     initEvents : function() {
 185         Ext.ux.tree.TreeGrid.superclass.initEvents.apply(this, arguments);
 186
 187         this.mon(this.innerBody, 'scroll', this.syncScroll, this);
 188         this.mon(this.innerHd, 'click', this.handleHdDown, this);
 189         this.mon(this.mainHd, {
 190             scope: this,
 191             mouseover: this.handleHdOver,
 192             mouseout: this.handleHdOut
 193         });
 194     },
 195
 196     onResize : function(w, h) {
 197         Ext.ux.tree.TreeGrid.superclass.onResize.apply(this, arguments);
 198
 199         var bd = this.innerBody.dom;
 200         var hd = this.innerHd.dom;
 201
 202         if(!bd){
 203             return;
 204         }
 205
 206         if(Ext.isNumber(h)){
 207             bd.style.height = this.body.getHeight(true) - hd.offsetHeight + 'px';
 208         }
 209
 210         if(Ext.isNumber(w)){
 211             var sw = Ext.num(this.scrollOffset, Ext.getScrollBarWidth());
 212             if(this.reserveScrollOffset || ((bd.offsetWidth - bd.clientWidth) > 10)){
 213                 this.setScrollOffset(sw);
 214             }else{
 215                 var me = this;
 216                 setTimeout(function(){
 217                     me.setScrollOffset(bd.offsetWidth - bd.clientWidth > 10 ? sw : 0);
 218                 }, 10);
 219             }
 220         }
 221     },
 222
 223     updateColumnWidths : function() {
 224         var cols = this.columns,
 225             colCount = cols.length,
 226             groups = this.outerCt.query('colgroup'),
 227             groupCount = groups.length,
 228             c, g, i, j;
 229
 230         for(i = 0; i<colCount; i++) {
 231             c = cols[i];
 232             for(j = 0; j<groupCount; j++) {
 233                 g = groups[j];
 234                 g.childNodes[i].style.width = (c.hidden ? 0 : c.width) + 'px';
 235             }
 236         }
 237
 238         for(i = 0, groups = this.innerHd.query('td'), len = groups.length; i<len; i++) {
 239             c = Ext.fly(groups[i]);
 240             if(cols[i] && cols[i].hidden) {
 241                 c.addClass('x-treegrid-hd-hidden');
 242             }
 243             else {
 244                 c.removeClass('x-treegrid-hd-hidden');
 245             }
 246         }
 247
 248         var tcw = this.getTotalColumnWidth();
 249         Ext.fly(this.innerHd.dom.firstChild).setWidth(tcw + (this.scrollOffset || 0));
 250         this.outerCt.select('table').setWidth(tcw);
 251         this.syncHeaderScroll();
 252     },
 253
 254     getVisibleColumns : function() {
 255         var columns = [],
 256             cs = this.columns,
 257             len = cs.length,
 258             i;
 259
 260         for(i = 0; i<len; i++) {
 261             if(!cs[i].hidden) {
 262                 columns.push(cs[i]);
 263             }
 264         }
 265         return columns;
 266     },
 267
 268     getTotalColumnWidth : function() {
 269         var total = 0;
 270         for(var i = 0, cs = this.getVisibleColumns(), len = cs.length; i<len; i++) {
 271             total += cs[i].width;
 272         }
 273         return total;
 274     },
 275
 276     setScrollOffset : function(scrollOffset) {
 277         this.scrollOffset = scrollOffset;
 278         this.updateColumnWidths();
 279     },
 280
 281     // private
 282     handleHdDown : function(e, t){
 283         var hd = e.getTarget('.x-treegrid-hd');
 284
 285         if(hd && Ext.fly(t).hasClass('x-grid3-hd-btn')){
 286             var ms = this.hmenu.items,
 287                 cs = this.columns,
 288                 index = this.findHeaderIndex(hd),
 289                 c = cs[index],
 290                 sort = c.sortable;
 291
 292             e.stopEvent();
 293             Ext.fly(hd).addClass('x-grid3-hd-menu-open');
 294             this.hdCtxIndex = index;
 295
 296             this.fireEvent('headerbuttonclick', ms, c, hd, index);
 297
 298             this.hmenu.on('hide', function(){
 299                 Ext.fly(hd).removeClass('x-grid3-hd-menu-open');
 300             }, this, {single:true});
 301
 302             this.hmenu.show(t, 'tl-bl?');
 303         }
 304         else if(hd) {
 305             var index = this.findHeaderIndex(hd);
 306             this.fireEvent('headerclick', this.columns[index], hd, index);
 307         }
 308     },
 309
 310     // private
 311     handleHdOver : function(e, t){
 312         var hd = e.getTarget('.x-treegrid-hd');
 313         if(hd && !this.headersDisabled){
 314             index = this.findHeaderIndex(hd);
 315             this.activeHdRef = t;
 316             this.activeHdIndex = index;
 317             var el = Ext.get(hd);
 318             this.activeHdRegion = el.getRegion();
 319             el.addClass('x-grid3-hd-over');
 320             this.activeHdBtn = el.child('.x-grid3-hd-btn');
 321             if(this.activeHdBtn){
 322                 this.activeHdBtn.dom.style.height = (hd.firstChild.offsetHeight-1)+'px';
 323             }
 324         }
 325     },
 326
 327     // private
 328     handleHdOut : function(e, t){
 329         var hd = e.getTarget('.x-treegrid-hd');
 330         if(hd && (!Ext.isIE || !e.within(hd, true))){
 331             this.activeHdRef = null;
 332             Ext.fly(hd).removeClass('x-grid3-hd-over');
 333             hd.style.cursor = '';
 334         }
 335     },
 336
 337     findHeaderIndex : function(hd){
 338         hd = hd.dom || hd;
 339         var cs = hd.parentNode.childNodes;
 340         for(var i = 0, c; c = cs[i]; i++){
 341             if(c == hd){
 342                 return i;
 343             }
 344         }
 345         return -1;
 346     },
 347
 348     // private
 349     beforeColMenuShow : function(){
 350         var cols = this.columns,
 351             colCount = cols.length,
 352             i, c;
 353         this.colMenu.removeAll();
 354         for(i = 1; i < colCount; i++){
 355             c = cols[i];
 356             if(c.hideable !== false){
 357                 this.colMenu.add(new Ext.menu.CheckItem({
 358                     itemId: 'col-' + i,
 359                     text: c.header,
 360                     checked: !c.hidden,
 361                     hideOnClick:false,
 362                     disabled: c.hideable === false
 363                 }));
 364             }
 365         }
 366     },
 367
 368     // private
 369     handleHdMenuClick : function(item){
 370         var index = this.hdCtxIndex,
 371             id = item.getItemId();
 372
 373         if(this.fireEvent('headermenuclick', this.columns[index], id, index) !== false) {
 374             index = id.substr(4);
 375             if(index > 0 && this.columns[index]) {
 376                 this.setColumnVisible(index, !item.checked);
 377             }
 378         }
 379
 380         return true;
 381     },
 382
 383     setColumnVisible : function(index, visible) {
 384         this.columns[index].hidden = !visible;
 385         this.updateColumnWidths();
 386     },
 387
 388     <div id="method-Ext.ux.tree.TreeGrid-scrollToTop"></div>/**
 389      * Scrolls the grid to the top
 390      */
 391     scrollToTop : function(){
 392         this.innerBody.dom.scrollTop = 0;
 393         this.innerBody.dom.scrollLeft = 0;
 394     },
 395
 396     // private
 397     syncScroll : function(){
 398         this.syncHeaderScroll();
 399         var mb = this.innerBody.dom;
 400         this.fireEvent('bodyscroll', mb.scrollLeft, mb.scrollTop);
 401     },
 402
 403     // private
 404     syncHeaderScroll : function(){
 405         var mb = this.innerBody.dom;
 406         this.innerHd.dom.scrollLeft = mb.scrollLeft;
 407         this.innerHd.dom.scrollLeft = mb.scrollLeft; // second time for IE (1/2 time first fails, other browsers ignore)
 408     },
 409
 410     registerNode : function(n) {
 411         Ext.ux.tree.TreeGrid.superclass.registerNode.call(this, n);
 412         if(!n.uiProvider && !n.isRoot && !n.ui.isTreeGridNodeUI) {
 413             n.ui = new Ext.ux.tree.TreeGridNodeUI(n);
 414         }
 415     }
 416 });
 417
 418 Ext.reg('treegrid', Ext.ux.tree.TreeGrid);</pre>
 419 </body>
 420 </html>