git.roojs.org Git - roojs1/blob - Roo/grid/GridView.js

   1 /*
   2  * Based on:
   3  * Ext JS Library 1.1.1
   4  * Copyright(c) 2006-2007, Ext JS, LLC.
   5  *
   6  * Originally Released Under LGPL - original licence link has changed is not relivant.
   7  *
   8  * Fork - LGPL
   9  * <script type="text/javascript">
  10  */
  11
  12 /**
  13  * @class Roo.grid.GridView
  14  * @extends Roo.util.Observable
  15  *
  16  * @constructor
  17  * @param {Object} config
  18  */
  19 Roo.grid.GridView = function(config){
  20     Roo.grid.GridView.superclass.constructor.call(this);
  21     this.el = null;
  22
  23     Roo.apply(this, config);
  24 };
  25
  26 Roo.extend(Roo.grid.GridView, Roo.grid.AbstractGridView, {
  27
  28     unselectable :  'unselectable="on"',
  29     unselectableCls :  'x-unselectable',
  30
  31
  32     rowClass : "x-grid-row",
  33
  34     cellClass : "x-grid-col",
  35
  36     tdClass : "x-grid-td",
  37
  38     hdClass : "x-grid-hd",
  39
  40     splitClass : "x-grid-split",
  41
  42     sortClasses : ["sort-asc", "sort-desc"],
  43
  44     enableMoveAnim : false,
  45
  46     hlColor: "C3DAF9",
  47
  48     dh : Roo.DomHelper,
  49
  50     fly : Roo.Element.fly,
  51
  52     css : Roo.util.CSS,
  53
  54     borderWidth: 1,
  55
  56     splitOffset: 3,
  57
  58     scrollIncrement : 22,
  59
  60     cellRE: /(?:.*?)x-grid-(?:hd|cell|csplit)-(?:[\d]+)-([\d]+)(?:.*?)/,
  61
  62     findRE: /\s?(?:x-grid-hd|x-grid-col|x-grid-csplit)\s/,
  63
  64     bind : function(ds, cm){
  65         if(this.ds){
  66             this.ds.un("load", this.onLoad, this);
  67             this.ds.un("datachanged", this.onDataChange, this);
  68             this.ds.un("add", this.onAdd, this);
  69             this.ds.un("remove", this.onRemove, this);
  70             this.ds.un("update", this.onUpdate, this);
  71             this.ds.un("clear", this.onClear, this);
  72         }
  73         if(ds){
  74             ds.on("load", this.onLoad, this);
  75             ds.on("datachanged", this.onDataChange, this);
  76             ds.on("add", this.onAdd, this);
  77             ds.on("remove", this.onRemove, this);
  78             ds.on("update", this.onUpdate, this);
  79             ds.on("clear", this.onClear, this);
  80         }
  81         this.ds = ds;
  82
  83         if(this.cm){
  84             this.cm.un("widthchange", this.onColWidthChange, this);
  85             this.cm.un("headerchange", this.onHeaderChange, this);
  86             this.cm.un("hiddenchange", this.onHiddenChange, this);
  87             this.cm.un("columnmoved", this.onColumnMove, this);
  88             this.cm.un("columnlockchange", this.onColumnLock, this);
  89         }
  90         if(cm){
  91             this.generateRules(cm);
  92             cm.on("widthchange", this.onColWidthChange, this);
  93             cm.on("headerchange", this.onHeaderChange, this);
  94             cm.on("hiddenchange", this.onHiddenChange, this);
  95             cm.on("columnmoved", this.onColumnMove, this);
  96             cm.on("columnlockchange", this.onColumnLock, this);
  97         }
  98         this.cm = cm;
  99     },
 100
 101     init: function(grid){
 102         Roo.grid.GridView.superclass.init.call(this, grid);
 103
 104         this.bind(grid.dataSource, grid.colModel);
 105
 106         grid.on("headerclick", this.handleHeaderClick, this);
 107
 108         if(grid.trackMouseOver){
 109             grid.on("mouseover", this.onRowOver, this);
 110             grid.on("mouseout", this.onRowOut, this);
 111         }
 112         grid.cancelTextSelection = function(){};
 113         this.gridId = grid.id;
 114
 115         var tpls = this.templates || {};
 116
 117         if(!tpls.master){
 118             tpls.master = new Roo.Template(
 119                '<div class="x-grid" hidefocus="true">',
 120                 '<a href="#" class="x-grid-focus" tabIndex="-1"></a>',
 121                   '<div class="x-grid-topbar"></div>',
 122                   '<div class="x-grid-scroller"><div></div></div>',
 123                   '<div class="x-grid-locked">',
 124                       '<div class="x-grid-header">{lockedHeader}</div>',
 125                       '<div class="x-grid-body">{lockedBody}</div>',
 126                   "</div>",
 127                   '<div class="x-grid-viewport">',
 128                       '<div class="x-grid-header">{header}</div>',
 129                       '<div class="x-grid-body">{body}</div>',
 130                   "</div>",
 131                   '<div class="x-grid-bottombar"></div>',
 132
 133                   '<div class="x-grid-resize-proxy">&#160;</div>',
 134                "</div>"
 135             );
 136             tpls.master.disableformats = true;
 137         }
 138
 139         if(!tpls.header){
 140             tpls.header = new Roo.Template(
 141                '<table border="0" cellspacing="0" cellpadding="0">',
 142                '<tbody><tr class="x-grid-hd-row">{cells}</tr></tbody>',
 143                "</table>{splits}"
 144             );
 145             tpls.header.disableformats = true;
 146         }
 147         tpls.header.compile();
 148
 149         if(!tpls.hcell){
 150             tpls.hcell = new Roo.Template(
 151                 '<td class="x-grid-hd x-grid-td-{id} {cellId}"><div title="{title}" class="x-grid-hd-inner x-grid-hd-{id}">',
 152                 '<div class="x-grid-hd-text ' + this.unselectableCls +  '" ' + this.unselectable +'>{value}<img class="x-grid-sort-icon" src="', Roo.BLANK_IMAGE_URL, '" /></div>',
 153                 "</div></td>"
 154              );
 155              tpls.hcell.disableFormats = true;
 156         }
 157         tpls.hcell.compile();
 158
 159         if(!tpls.hsplit){
 160             tpls.hsplit = new Roo.Template('<div class="x-grid-split {splitId} x-grid-split-{id}" style="{style} ' +
 161                                             this.unselectableCls +  '" ' + this.unselectable +'>&#160;</div>');
 162             tpls.hsplit.disableFormats = true;
 163         }
 164         tpls.hsplit.compile();
 165
 166         if(!tpls.body){
 167             tpls.body = new Roo.Template(
 168                '<table border="0" cellspacing="0" cellpadding="0">',
 169                "<tbody>{rows}</tbody>",
 170                "</table>"
 171             );
 172             tpls.body.disableFormats = true;
 173         }
 174         tpls.body.compile();
 175
 176         if(!tpls.row){
 177             tpls.row = new Roo.Template('<tr class="x-grid-row {alt}">{cells}</tr>');
 178             tpls.row.disableFormats = true;
 179         }
 180         tpls.row.compile();
 181
 182         if(!tpls.cell){
 183             tpls.cell = new Roo.Template(
 184                 '<td class="x-grid-col x-grid-td-{id} {cellId} {css}" tabIndex="0">',
 185                 '<div class="x-grid-col-{id} x-grid-cell-inner"><div class="x-grid-cell-text ' +
 186                     this.unselectableCls +  '" ' + this.unselectable +'" {attr}>{value}</div></div>',
 187                 "</td>"
 188             );
 189             tpls.cell.disableFormats = true;
 190         }
 191         tpls.cell.compile();
 192
 193         this.templates = tpls;
 194     },
 195
 196     // remap these for backwards compat
 197     onColWidthChange : function(){
 198         this.updateColumns.apply(this, arguments);
 199     },
 200     onHeaderChange : function(){
 201         this.updateHeaders.apply(this, arguments);
 202     },
 203     onHiddenChange : function(){
 204         this.handleHiddenChange.apply(this, arguments);
 205     },
 206     onColumnMove : function(){
 207         this.handleColumnMove.apply(this, arguments);
 208     },
 209     onColumnLock : function(){
 210         this.handleLockChange.apply(this, arguments);
 211     },
 212
 213     onDataChange : function(){
 214         this.refresh();
 215         this.updateHeaderSortState();
 216     },
 217
 218     onClear : function(){
 219         this.refresh();
 220     },
 221
 222     onUpdate : function(ds, record){
 223         this.refreshRow(record);
 224     },
 225
 226     refreshRow : function(record){
 227         var ds = this.ds, index;
 228         if(typeof record == 'number'){
 229             index = record;
 230             record = ds.getAt(index);
 231         }else{
 232             index = ds.indexOf(record);
 233         }
 234         this.insertRows(ds, index, index, true);
 235         this.onRemove(ds, record, index+1, true);
 236         this.syncRowHeights(index, index);
 237         this.layout();
 238         this.fireEvent("rowupdated", this, index, record);
 239     },
 240
 241     onAdd : function(ds, records, index){
 242         this.insertRows(ds, index, index + (records.length-1));
 243     },
 244
 245     onRemove : function(ds, record, index, isUpdate){
 246         if(isUpdate !== true){
 247             this.fireEvent("beforerowremoved", this, index, record);
 248         }
 249         var bt = this.getBodyTable(), lt = this.getLockedTable();
 250         if(bt.rows[index]){
 251             bt.firstChild.removeChild(bt.rows[index]);
 252         }
 253         if(lt.rows[index]){
 254             lt.firstChild.removeChild(lt.rows[index]);
 255         }
 256         if(isUpdate !== true){
 257             this.stripeRows(index);
 258             this.syncRowHeights(index, index);
 259             this.layout();
 260             this.fireEvent("rowremoved", this, index, record);
 261         }
 262     },
 263
 264     onLoad : function(){
 265         this.scrollToTop();
 266     },
 267
 268     /**
 269      * Scrolls the grid to the top
 270      */
 271     scrollToTop : function(){
 272         if(this.scroller){
 273             this.scroller.dom.scrollTop = 0;
 274             this.syncScroll();
 275         }
 276     },
 277
 278     /**
 279      * Gets a panel in the header of the grid that can be used for toolbars etc.
 280      * After modifying the contents of this panel a call to grid.autoSize() may be
 281      * required to register any changes in size.
 282      * @param {Boolean} doShow By default the header is hidden. Pass true to show the panel
 283      * @return Roo.Element
 284      */
 285     getHeaderPanel : function(doShow){
 286         if(doShow){
 287             this.headerPanel.show();
 288         }
 289         return this.headerPanel;
 290     },
 291
 292     /**
 293      * Gets a panel in the footer of the grid that can be used for toolbars etc.
 294      * After modifying the contents of this panel a call to grid.autoSize() may be
 295      * required to register any changes in size.
 296      * @param {Boolean} doShow By default the footer is hidden. Pass true to show the panel
 297      * @return Roo.Element
 298      */
 299     getFooterPanel : function(doShow){
 300         if(doShow){
 301             this.footerPanel.show();
 302         }
 303         return this.footerPanel;
 304     },
 305
 306     initElements : function(){
 307         var E = Roo.Element;
 308         var el = this.grid.getGridEl().dom.firstChild;
 309         var cs = el.childNodes;
 310
 311         this.el = new E(el);
 312
 313          this.focusEl = new E(el.firstChild);
 314         this.focusEl.swallowEvent("click", true);
 315
 316         this.headerPanel = new E(cs[1]);
 317         this.headerPanel.enableDisplayMode("block");
 318
 319         this.scroller = new E(cs[2]);
 320         this.scrollSizer = new E(this.scroller.dom.firstChild);
 321
 322         this.lockedWrap = new E(cs[3]);
 323         this.lockedHd = new E(this.lockedWrap.dom.firstChild);
 324         this.lockedBody = new E(this.lockedWrap.dom.childNodes[1]);
 325
 326         this.mainWrap = new E(cs[4]);
 327         this.mainHd = new E(this.mainWrap.dom.firstChild);
 328         this.mainBody = new E(this.mainWrap.dom.childNodes[1]);
 329
 330         this.footerPanel = new E(cs[5]);
 331         this.footerPanel.enableDisplayMode("block");
 332
 333         this.resizeProxy = new E(cs[6]);
 334
 335         this.headerSelector = String.format(
 336            '#{0} td.x-grid-hd, #{1} td.x-grid-hd',
 337            this.lockedHd.id, this.mainHd.id
 338         );
 339
 340         this.splitterSelector = String.format(
 341            '#{0} div.x-grid-split, #{1} div.x-grid-split',
 342            this.idToCssName(this.lockedHd.id), this.idToCssName(this.mainHd.id)
 343         );
 344     },
 345     idToCssName : function(s)
 346     {
 347         return s.replace(/[^a-z0-9]+/ig, '-');
 348     },
 349
 350     getHeaderCell : function(index){
 351         return Roo.DomQuery.select(this.headerSelector)[index];
 352     },
 353
 354     getHeaderCellMeasure : function(index){
 355         return this.getHeaderCell(index).firstChild;
 356     },
 357
 358     getHeaderCellText : function(index){
 359         return this.getHeaderCell(index).firstChild.firstChild;
 360     },
 361
 362     getLockedTable : function(){
 363         return this.lockedBody.dom.firstChild;
 364     },
 365
 366     getBodyTable : function(){
 367         return this.mainBody.dom.firstChild;
 368     },
 369
 370     getLockedRow : function(index){
 371         return this.getLockedTable().rows[index];
 372     },
 373
 374     getRow : function(index){
 375         return this.getBodyTable().rows[index];
 376     },
 377
 378     getRowComposite : function(index){
 379         if(!this.rowEl){
 380             this.rowEl = new Roo.CompositeElementLite();
 381         }
 382         var els = [], lrow, mrow;
 383         if(lrow = this.getLockedRow(index)){
 384             els.push(lrow);
 385         }
 386         if(mrow = this.getRow(index)){
 387             els.push(mrow);
 388         }
 389         this.rowEl.elements = els;
 390         return this.rowEl;
 391     },
 392     /**
 393      * Gets the 'td' of the cell
 394      *
 395      * @param {Integer} rowIndex row to select
 396      * @param {Integer} colIndex column to select
 397      *
 398      * @return {Object}
 399      */
 400     getCell : function(rowIndex, colIndex){
 401         var locked = this.cm.getLockedCount();
 402         var source;
 403         if(colIndex < locked){
 404             source = this.lockedBody.dom.firstChild;
 405         }else{
 406             source = this.mainBody.dom.firstChild;
 407             colIndex -= locked;
 408         }
 409         return source.rows[rowIndex].childNodes[colIndex];
 410     },
 411
 412     getCellText : function(rowIndex, colIndex){
 413         return this.getCell(rowIndex, colIndex).firstChild.firstChild;
 414     },
 415
 416     getCellBox : function(cell){
 417         var b = this.fly(cell).getBox();
 418         if(Roo.isOpera){ // opera fails to report the Y
 419             b.y = cell.offsetTop + this.mainBody.getY();
 420         }
 421         return b;
 422     },
 423
 424     getCellIndex : function(cell){
 425         var id = String(cell.className).match(this.cellRE);
 426         if(id){
 427             return parseInt(id[1], 10);
 428         }
 429         return 0;
 430     },
 431
 432     findHeaderIndex : function(n){
 433         var r = Roo.fly(n).findParent("td." + this.hdClass, 6);
 434         return r ? this.getCellIndex(r) : false;
 435     },
 436
 437     findHeaderCell : function(n){
 438         var r = Roo.fly(n).findParent("td." + this.hdClass, 6);
 439         return r ? r : false;
 440     },
 441
 442     findRowIndex : function(n){
 443         if(!n){
 444             return false;
 445         }
 446         var r = Roo.fly(n).findParent("tr." + this.rowClass, 6);
 447         return r ? r.rowIndex : false;
 448     },
 449
 450     findCellIndex : function(node){
 451         var stop = this.el.dom;
 452         while(node && node != stop){
 453             if(this.findRE.test(node.className)){
 454                 return this.getCellIndex(node);
 455             }
 456             node = node.parentNode;
 457         }
 458         return false;
 459     },
 460
 461     getColumnId : function(index){
 462         return this.cm.getColumnId(index);
 463     },
 464
 465     getSplitters : function()
 466     {
 467         if(this.splitterSelector){
 468            return Roo.DomQuery.select(this.splitterSelector);
 469         }else{
 470             return null;
 471       }
 472     },
 473
 474     getSplitter : function(index){
 475         return this.getSplitters()[index];
 476     },
 477
 478     onRowOver : function(e, t){
 479         var row;
 480         if((row = this.findRowIndex(t)) !== false){
 481             this.getRowComposite(row).addClass("x-grid-row-over");
 482         }
 483     },
 484
 485     onRowOut : function(e, t){
 486         var row;
 487         if((row = this.findRowIndex(t)) !== false && row !== this.findRowIndex(e.getRelatedTarget())){
 488             this.getRowComposite(row).removeClass("x-grid-row-over");
 489         }
 490     },
 491
 492     renderHeaders : function(){
 493         var cm = this.cm;
 494         var ct = this.templates.hcell, ht = this.templates.header, st = this.templates.hsplit;
 495         var cb = [], lb = [], sb = [], lsb = [], p = {};
 496         for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 497             p.cellId = "x-grid-hd-0-" + i;
 498             p.splitId = "x-grid-csplit-0-" + i;
 499             p.id = cm.getColumnId(i);
 500             p.title = cm.getColumnTooltip(i) || "";
 501             p.value = cm.getColumnHeader(i) || "";
 502             p.style = (this.grid.enableColumnResize === false || !cm.isResizable(i) || cm.isFixed(i)) ? 'cursor:default' : '';
 503             if(!cm.isLocked(i)){
 504                 cb[cb.length] = ct.apply(p);
 505                 sb[sb.length] = st.apply(p);
 506             }else{
 507                 lb[lb.length] = ct.apply(p);
 508                 lsb[lsb.length] = st.apply(p);
 509             }
 510         }
 511         return [ht.apply({cells: lb.join(""), splits:lsb.join("")}),
 512                 ht.apply({cells: cb.join(""), splits:sb.join("")})];
 513     },
 514
 515     updateHeaders : function(){
 516         var html = this.renderHeaders();
 517         this.lockedHd.update(html[0]);
 518         this.mainHd.update(html[1]);
 519     },
 520
 521     /**
 522      * Focuses the specified row.
 523      * @param {Number} row The row index
 524      */
 525     focusRow : function(row)
 526     {
 527         //Roo.log('GridView.focusRow');
 528         var x = this.scroller.dom.scrollLeft;
 529         this.focusCell(row, 0, false);
 530         this.scroller.dom.scrollLeft = x;
 531     },
 532
 533     /**
 534      * Focuses the specified cell.
 535      * @param {Number} row The row index
 536      * @param {Number} col The column index
 537      * @param {Boolean} hscroll false to disable horizontal scrolling
 538      */
 539     focusCell : function(row, col, hscroll)
 540     {
 541         //Roo.log('GridView.focusCell');
 542         var el = this.ensureVisible(row, col, hscroll);
 543         this.focusEl.alignTo(el, "tl-tl");
 544         if(Roo.isGecko){
 545             this.focusEl.focus();
 546         }else{
 547             this.focusEl.focus.defer(1, this.focusEl);
 548         }
 549     },
 550
 551     /**
 552      * Scrolls the specified cell into view
 553      * @param {Number} row The row index
 554      * @param {Number} col The column index
 555      * @param {Boolean} hscroll false to disable horizontal scrolling
 556      */
 557     ensureVisible : function(row, col, hscroll)
 558     {
 559         //Roo.log('GridView.ensureVisible,' + row + ',' + col);
 560         //return null; //disable for testing.
 561         if(typeof row != "number"){
 562             row = row.rowIndex;
 563         }
 564         if(row < 0 && row >= this.ds.getCount()){
 565             return  null;
 566         }
 567         col = (col !== undefined ? col : 0);
 568         var cm = this.grid.colModel;
 569         while(cm.isHidden(col)){
 570             col++;
 571         }
 572
 573         var el = this.getCell(row, col);
 574         if(!el){
 575             return null;
 576         }
 577         var c = this.scroller.dom;
 578
 579         var ctop = parseInt(el.offsetTop, 10);
 580         var cleft = parseInt(el.offsetLeft, 10);
 581         var cbot = ctop + el.offsetHeight;
 582         var cright = cleft + el.offsetWidth;
 583
 584         var ch = c.clientHeight - this.mainHd.dom.offsetHeight;
 585         var stop = parseInt(c.scrollTop, 10);
 586         var sleft = parseInt(c.scrollLeft, 10);
 587         var sbot = stop + ch;
 588         var sright = sleft + c.clientWidth;
 589         /*
 590         Roo.log('GridView.ensureVisible:' +
 591                 ' ctop:' + ctop +
 592                 ' c.clientHeight:' + c.clientHeight +
 593                 ' this.mainHd.dom.offsetHeight:' + this.mainHd.dom.offsetHeight +
 594                 ' stop:' + stop +
 595                 ' cbot:' + cbot +
 596                 ' sbot:' + sbot +
 597                 ' ch:' + ch
 598                 );
 599         */
 600         if(ctop < stop){
 601              c.scrollTop = ctop;
 602             //Roo.log("set scrolltop to ctop DISABLE?");
 603         }else if(cbot > sbot){
 604             //Roo.log("set scrolltop to cbot-ch");
 605             c.scrollTop = cbot-ch;
 606         }
 607
 608         if(hscroll !== false){
 609             if(cleft < sleft){
 610                 c.scrollLeft = cleft;
 611             }else if(cright > sright){
 612                 c.scrollLeft = cright-c.clientWidth;
 613             }
 614         }
 615
 616         return el;
 617     },
 618
 619     updateColumns : function(){
 620         this.grid.stopEditing();
 621         var cm = this.grid.colModel, colIds = this.getColumnIds();
 622         //var totalWidth = cm.getTotalWidth();
 623         var pos = 0;
 624         for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 625             //if(cm.isHidden(i)) continue;
 626             var w = cm.getColumnWidth(i);
 627             this.css.updateRule(this.colSelector+this.idToCssName(colIds[i]), "width", (w - this.borderWidth) + "px");
 628             this.css.updateRule(this.hdSelector+this.idToCssName(colIds[i]), "width", (w - this.borderWidth) + "px");
 629         }
 630         this.updateSplitters();
 631     },
 632
 633     generateRules : function(cm){
 634         var ruleBuf = [], rulesId = this.idToCssName(this.grid.id)+ '-cssrules';
 635         Roo.util.CSS.removeStyleSheet(rulesId);
 636         for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 637             var cid = cm.getColumnId(i);
 638             var align = '';
 639             if(cm.config[i].align){
 640                 align = 'text-align:'+cm.config[i].align+';';
 641             }
 642             var hidden = '';
 643             if(cm.isHidden(i)){
 644                 hidden = 'display:none;';
 645             }
 646             var width = "width:" + (cm.getColumnWidth(i) - this.borderWidth) + "px;";
 647             ruleBuf.push(
 648                     this.colSelector, cid, " {\n", cm.config[i].css, align, width, "\n}\n",
 649                     this.hdSelector, cid, " {\n", align, width, "}\n",
 650                     this.tdSelector, cid, " {\n",hidden,"\n}\n",
 651                     this.splitSelector, cid, " {\n", hidden , "\n}\n");
 652         }
 653         return Roo.util.CSS.createStyleSheet(ruleBuf.join(""), rulesId);
 654     },
 655
 656     updateSplitters : function(){
 657         var cm = this.cm, s = this.getSplitters();
 658         if(s){ // splitters not created yet
 659             var pos = 0, locked = true;
 660             for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 661                 if(cm.isHidden(i)) continue;
 662                 var w = cm.getColumnWidth(i); // make sure it's a number
 663                 if(!cm.isLocked(i) && locked){
 664                     pos = 0;
 665                     locked = false;
 666                 }
 667                 pos += w;
 668                 s[i].style.left = (pos-this.splitOffset) + "px";
 669             }
 670         }
 671     },
 672
 673     handleHiddenChange : function(colModel, colIndex, hidden){
 674         if(hidden){
 675             this.hideColumn(colIndex);
 676         }else{
 677             this.unhideColumn(colIndex);
 678         }
 679     },
 680
 681     hideColumn : function(colIndex){
 682         var cid = this.getColumnId(colIndex);
 683         this.css.updateRule(this.tdSelector+this.idToCssName(cid), "display", "none");
 684         this.css.updateRule(this.splitSelector+this.idToCssName(cid), "display", "none");
 685         if(Roo.isSafari){
 686             this.updateHeaders();
 687         }
 688         this.updateSplitters();
 689         this.layout();
 690     },
 691
 692     unhideColumn : function(colIndex){
 693         var cid = this.getColumnId(colIndex);
 694         this.css.updateRule(this.tdSelector+this.idToCssName(cid), "display", "");
 695         this.css.updateRule(this.splitSelector+this.idToCssName(cid), "display", "");
 696
 697         if(Roo.isSafari){
 698             this.updateHeaders();
 699         }
 700         this.updateSplitters();
 701         this.layout();
 702     },
 703
 704     insertRows : function(dm, firstRow, lastRow, isUpdate){
 705         if(firstRow == 0 && lastRow == dm.getCount()-1){
 706             this.refresh();
 707         }else{
 708             if(!isUpdate){
 709                 this.fireEvent("beforerowsinserted", this, firstRow, lastRow);
 710             }
 711             var s = this.getScrollState();
 712             var markup = this.renderRows(firstRow, lastRow);
 713             this.bufferRows(markup[0], this.getLockedTable(), firstRow);
 714             this.bufferRows(markup[1], this.getBodyTable(), firstRow);
 715             this.restoreScroll(s);
 716             if(!isUpdate){
 717                 this.fireEvent("rowsinserted", this, firstRow, lastRow);
 718                 this.syncRowHeights(firstRow, lastRow);
 719                 this.stripeRows(firstRow);
 720                 this.layout();
 721             }
 722         }
 723     },
 724
 725     bufferRows : function(markup, target, index){
 726         var before = null, trows = target.rows, tbody = target.tBodies[0];
 727         if(index < trows.length){
 728             before = trows[index];
 729         }
 730         var b = document.createElement("div");
 731         b.innerHTML = "<table><tbody>"+markup+"</tbody></table>";
 732         var rows = b.firstChild.rows;
 733         for(var i = 0, len = rows.length; i < len; i++){
 734             if(before){
 735                 tbody.insertBefore(rows[0], before);
 736             }else{
 737                 tbody.appendChild(rows[0]);
 738             }
 739         }
 740         b.innerHTML = "";
 741         b = null;
 742     },
 743
 744     deleteRows : function(dm, firstRow, lastRow){
 745         if(dm.getRowCount()<1){
 746             this.fireEvent("beforerefresh", this);
 747             this.mainBody.update("");
 748             this.lockedBody.update("");
 749             this.fireEvent("refresh", this);
 750         }else{
 751             this.fireEvent("beforerowsdeleted", this, firstRow, lastRow);
 752             var bt = this.getBodyTable();
 753             var tbody = bt.firstChild;
 754             var rows = bt.rows;
 755             for(var rowIndex = firstRow; rowIndex <= lastRow; rowIndex++){
 756                 tbody.removeChild(rows[firstRow]);
 757             }
 758             this.stripeRows(firstRow);
 759             this.fireEvent("rowsdeleted", this, firstRow, lastRow);
 760         }
 761     },
 762
 763     updateRows : function(dataSource, firstRow, lastRow){
 764         var s = this.getScrollState();
 765         this.refresh();
 766         this.restoreScroll(s);
 767     },
 768
 769     handleSort : function(dataSource, sortColumnIndex, sortDir, noRefresh){
 770         if(!noRefresh){
 771            this.refresh();
 772         }
 773         this.updateHeaderSortState();
 774     },
 775
 776     getScrollState : function(){
 777
 778         var sb = this.scroller.dom;
 779         return {left: sb.scrollLeft, top: sb.scrollTop};
 780     },
 781
 782     stripeRows : function(startRow){
 783         if(!this.grid.stripeRows || this.ds.getCount() < 1){
 784             return;
 785         }
 786         startRow = startRow || 0;
 787         var rows = this.getBodyTable().rows;
 788         var lrows = this.getLockedTable().rows;
 789         var cls = ' x-grid-row-alt ';
 790         for(var i = startRow, len = rows.length; i < len; i++){
 791             var row = rows[i], lrow = lrows[i];
 792             var isAlt = ((i+1) % 2 == 0);
 793             var hasAlt = (' '+row.className + ' ').indexOf(cls) != -1;
 794             if(isAlt == hasAlt){
 795                 continue;
 796             }
 797             if(isAlt){
 798                 row.className += " x-grid-row-alt";
 799             }else{
 800                 row.className = row.className.replace("x-grid-row-alt", "");
 801             }
 802             if(lrow){
 803                 lrow.className = row.className;
 804             }
 805         }
 806     },
 807
 808     restoreScroll : function(state){
 809         //Roo.log('GridView.restoreScroll');
 810         var sb = this.scroller.dom;
 811         sb.scrollLeft = state.left;
 812         sb.scrollTop = state.top;
 813         this.syncScroll();
 814     },
 815
 816     syncScroll : function(){
 817         //Roo.log('GridView.syncScroll');
 818         var sb = this.scroller.dom;
 819         var sh = this.mainHd.dom;
 820         var bs = this.mainBody.dom;
 821         var lv = this.lockedBody.dom;
 822         sh.scrollLeft = bs.scrollLeft = sb.scrollLeft;
 823         lv.scrollTop = bs.scrollTop = sb.scrollTop;
 824     },
 825
 826     handleScroll : function(e){
 827         this.syncScroll();
 828         var sb = this.scroller.dom;
 829         this.grid.fireEvent("bodyscroll", sb.scrollLeft, sb.scrollTop);
 830         e.stopEvent();
 831     },
 832
 833     handleWheel : function(e){
 834         var d = e.getWheelDelta();
 835         this.scroller.dom.scrollTop -= d*22;
 836         // set this here to prevent jumpy scrolling on large tables
 837         this.lockedBody.dom.scrollTop = this.mainBody.dom.scrollTop = this.scroller.dom.scrollTop;
 838         e.stopEvent();
 839     },
 840
 841     renderRows : function(startRow, endRow){
 842         // pull in all the crap needed to render rows
 843         var g = this.grid, cm = g.colModel, ds = g.dataSource, stripe = g.stripeRows;
 844         var colCount = cm.getColumnCount();
 845
 846         if(ds.getCount() < 1){
 847             return ["", ""];
 848         }
 849
 850         // build a map for all the columns
 851         var cs = [];
 852         for(var i = 0; i < colCount; i++){
 853             var name = cm.getDataIndex(i);
 854             cs[i] = {
 855                 name : typeof name == 'undefined' ? ds.fields.get(i).name : name,
 856                 renderer : cm.getRenderer(i),
 857                 id : cm.getColumnId(i),
 858                 locked : cm.isLocked(i)
 859             };
 860         }
 861
 862         startRow = startRow || 0;
 863         endRow = typeof endRow == "undefined"? ds.getCount()-1 : endRow;
 864
 865         // records to render
 866         var rs = ds.getRange(startRow, endRow);
 867
 868         return this.doRender(cs, rs, ds, startRow, colCount, stripe);
 869     },
 870
 871     // As much as I hate to duplicate code, this was branched because FireFox really hates
 872     // [].join("") on strings. The performance difference was substantial enough to
 873     // branch this function
 874     doRender : Roo.isGecko ?
 875             function(cs, rs, ds, startRow, colCount, stripe){
 876                 var ts = this.templates, ct = ts.cell, rt = ts.row;
 877                 // buffers
 878                 var buf = "", lbuf = "", cb, lcb, c, p = {}, rp = {}, r, rowIndex;
 879
 880                 var hasListener = this.grid.hasListener('rowclass');
 881                 var rowcfg = {};
 882                 for(var j = 0, len = rs.length; j < len; j++){
 883                     r = rs[j]; cb = ""; lcb = ""; rowIndex = (j+startRow);
 884                     for(var i = 0; i < colCount; i++){
 885                         c = cs[i];
 886                         p.cellId = "x-grid-cell-" + rowIndex + "-" + i;
 887                         p.id = c.id;
 888                         p.css = p.attr = "";
 889                         p.value = c.renderer(r.data[c.name], p, r, rowIndex, i, ds);
 890                         if(p.value == undefined || p.value === "") p.value = "&#160;";
 891                         if(r.dirty && typeof r.modified[c.name] !== 'undefined'){
 892                             p.css += p.css ? ' x-grid-dirty-cell' : 'x-grid-dirty-cell';
 893                         }
 894                         var markup = ct.apply(p);
 895                         if(!c.locked){
 896                             cb+= markup;
 897                         }else{
 898                             lcb+= markup;
 899                         }
 900                     }
 901                     var alt = [];
 902                     if(stripe && ((rowIndex+1) % 2 == 0)){
 903                         alt.push("x-grid-row-alt")
 904                     }
 905                     if(r.dirty){
 906                         alt.push(  " x-grid-dirty-row");
 907                     }
 908                     rp.cells = lcb;
 909                     if(this.getRowClass){
 910                         alt.push(this.getRowClass(r, rowIndex));
 911                     }
 912                     if (hasListener) {
 913                         rowcfg = {
 914
 915                             record: r,
 916                             rowIndex : rowIndex,
 917                             rowClass : ''
 918                         };
 919                         this.grid.fireEvent('rowclass', this, rowcfg);
 920                         alt.push(rowcfg.rowClass);
 921                     }
 922                     rp.alt = alt.join(" ");
 923                     lbuf+= rt.apply(rp);
 924                     rp.cells = cb;
 925                     buf+=  rt.apply(rp);
 926                 }
 927                 return [lbuf, buf];
 928             } :
 929             function(cs, rs, ds, startRow, colCount, stripe){
 930                 var ts = this.templates, ct = ts.cell, rt = ts.row;
 931                 // buffers
 932                 var buf = [], lbuf = [], cb, lcb, c, p = {}, rp = {}, r, rowIndex;
 933                 var hasListener = this.grid.hasListener('rowclass');
 934
 935                 var rowcfg = {};
 936                 for(var j = 0, len = rs.length; j < len; j++){
 937                     r = rs[j]; cb = []; lcb = []; rowIndex = (j+startRow);
 938                     for(var i = 0; i < colCount; i++){
 939                         c = cs[i];
 940                         p.cellId = "x-grid-cell-" + rowIndex + "-" + i;
 941                         p.id = c.id;
 942                         p.css = p.attr = "";
 943                         p.value = c.renderer(r.data[c.name], p, r, rowIndex, i, ds);
 944                         if(p.value == undefined || p.value === "") p.value = "&#160;";
 945                         if(r.dirty && typeof r.modified[c.name] !== 'undefined'){
 946                             p.css += p.css ? ' x-grid-dirty-cell' : 'x-grid-dirty-cell';
 947                         }
 948
 949                         var markup = ct.apply(p);
 950                         if(!c.locked){
 951                             cb[cb.length] = markup;
 952                         }else{
 953                             lcb[lcb.length] = markup;
 954                         }
 955                     }
 956                     var alt = [];
 957                     if(stripe && ((rowIndex+1) % 2 == 0)){
 958                         alt.push( "x-grid-row-alt");
 959                     }
 960                     if(r.dirty){
 961                         alt.push(" x-grid-dirty-row");
 962                     }
 963                     rp.cells = lcb;
 964                     if(this.getRowClass){
 965                         alt.push( this.getRowClass(r, rowIndex));
 966                     }
 967                     if (hasListener) {
 968                         rowcfg = {
 969
 970                             record: r,
 971                             rowIndex : rowIndex,
 972                             rowClass : ''
 973                         };
 974                         this.grid.fireEvent('rowclass', this, rowcfg);
 975                         alt.push(rowcfg.rowClass);
 976                     }
 977                     rp.alt = alt.join(" ");
 978                     rp.cells = lcb.join("");
 979                     lbuf[lbuf.length] = rt.apply(rp);
 980                     rp.cells = cb.join("");
 981                     buf[buf.length] =  rt.apply(rp);
 982                 }
 983                 return [lbuf.join(""), buf.join("")];
 984             },
 985
 986     renderBody : function(){
 987         var markup = this.renderRows();
 988         var bt = this.templates.body;
 989         return [bt.apply({rows: markup[0]}), bt.apply({rows: markup[1]})];
 990     },
 991
 992     /**
 993      * Refreshes the grid
 994      * @param {Boolean} headersToo
 995      */
 996     refresh : function(headersToo){
 997         this.fireEvent("beforerefresh", this);
 998         this.grid.stopEditing();
 999         var result = this.renderBody();
1000         this.lockedBody.update(result[0]);
1001         this.mainBody.update(result[1]);
1002         if(headersToo === true){
1003             this.updateHeaders();
1004             this.updateColumns();
1005             this.updateSplitters();
1006             this.updateHeaderSortState();
1007         }
1008         this.syncRowHeights();
1009         this.layout();
1010         this.fireEvent("refresh", this);
1011     },
1012
1013     handleColumnMove : function(cm, oldIndex, newIndex){
1014         this.indexMap = null;
1015         var s = this.getScrollState();
1016         this.refresh(true);
1017         this.restoreScroll(s);
1018         this.afterMove(newIndex);
1019     },
1020
1021     afterMove : function(colIndex){
1022         if(this.enableMoveAnim && Roo.enableFx){
1023             this.fly(this.getHeaderCell(colIndex).firstChild).highlight(this.hlColor);
1024         }
1025         // if multisort - fix sortOrder, and reload..
1026         if (this.grid.dataSource.multiSort) {
1027             // the we can call sort again..
1028             var dm = this.grid.dataSource;
1029             var cm = this.grid.colModel;
1030             var so = [];
1031             for(var i = 0; i < cm.config.length; i++ ) {
1032
1033                 if ((typeof(dm.sortToggle[cm.config[i].dataIndex]) == 'undefined')) {
1034                     continue; // dont' bother, it's not in sort list or being set.
1035                 }
1036
1037                 so.push(cm.config[i].dataIndex);
1038             };
1039             dm.sortOrder = so;
1040             dm.load(dm.lastOptions);
1041
1042
1043         }
1044
1045     },
1046
1047     updateCell : function(dm, rowIndex, dataIndex){
1048         var colIndex = this.getColumnIndexByDataIndex(dataIndex);
1049         if(typeof colIndex == "undefined"){ // not present in grid
1050             return;
1051         }
1052         var cm = this.grid.colModel;
1053         var cell = this.getCell(rowIndex, colIndex);
1054         var cellText = this.getCellText(rowIndex, colIndex);
1055
1056         var p = {
1057             cellId : "x-grid-cell-" + rowIndex + "-" + colIndex,
1058             id : cm.getColumnId(colIndex),
1059             css: colIndex == cm.getColumnCount()-1 ? "x-grid-col-last" : ""
1060         };
1061         var renderer = cm.getRenderer(colIndex);
1062         var val = renderer(dm.getValueAt(rowIndex, dataIndex), p, rowIndex, colIndex, dm);
1063         if(typeof val == "undefined" || val === "") val = "&#160;";
1064         cellText.innerHTML = val;
1065         cell.className = this.cellClass + " " + this.idToCssName(p.cellId) + " " + p.css;
1066         this.syncRowHeights(rowIndex, rowIndex);
1067     },
1068
1069     calcColumnWidth : function(colIndex, maxRowsToMeasure){
1070         var maxWidth = 0;
1071         if(this.grid.autoSizeHeaders){
1072             var h = this.getHeaderCellMeasure(colIndex);
1073             maxWidth = Math.max(maxWidth, h.scrollWidth);
1074         }
1075         var tb, index;
1076         if(this.cm.isLocked(colIndex)){
1077             tb = this.getLockedTable();
1078             index = colIndex;
1079         }else{
1080             tb = this.getBodyTable();
1081             index = colIndex - this.cm.getLockedCount();
1082         }
1083         if(tb && tb.rows){
1084             var rows = tb.rows;
1085             var stopIndex = Math.min(maxRowsToMeasure || rows.length, rows.length);
1086             for(var i = 0; i < stopIndex; i++){
1087                 var cell = rows[i].childNodes[index].firstChild;
1088                 maxWidth = Math.max(maxWidth, cell.scrollWidth);
1089             }
1090         }
1091         return maxWidth + /*margin for error in IE*/ 5;
1092     },
1093     /**
1094      * Autofit a column to its content.
1095      * @param {Number} colIndex
1096      * @param {Boolean} forceMinSize true to force the column to go smaller if possible
1097      */
1098      autoSizeColumn : function(colIndex, forceMinSize, suppressEvent){
1099          if(this.cm.isHidden(colIndex)){
1100              return; // can't calc a hidden column
1101          }
1102         if(forceMinSize){
1103             var cid = this.cm.getColumnId(colIndex);
1104             this.css.updateRule(this.colSelector +this.idToCssName( cid), "width", this.grid.minColumnWidth + "px");
1105            if(this.grid.autoSizeHeaders){
1106                this.css.updateRule(this.hdSelector + this.idToCssName(cid), "width", this.grid.minColumnWidth + "px");
1107            }
1108         }
1109         var newWidth = this.calcColumnWidth(colIndex);
1110         this.cm.setColumnWidth(colIndex,
1111             Math.max(this.grid.minColumnWidth, newWidth), suppressEvent);
1112         if(!suppressEvent){
1113             this.grid.fireEvent("columnresize", colIndex, newWidth);
1114         }
1115     },
1116
1117     /**
1118      * Autofits all columns to their content and then expands to fit any extra space in the grid
1119      */
1120      autoSizeColumns : function(){
1121         var cm = this.grid.colModel;
1122         var colCount = cm.getColumnCount();
1123         for(var i = 0; i < colCount; i++){
1124             this.autoSizeColumn(i, true, true);
1125         }
1126         if(cm.getTotalWidth() < this.scroller.dom.clientWidth){
1127             this.fitColumns();
1128         }else{
1129             this.updateColumns();
1130             this.layout();
1131         }
1132     },
1133
1134     /**
1135      * Autofits all columns to the grid's width proportionate with their current size
1136      * @param {Boolean} reserveScrollSpace Reserve space for a scrollbar
1137      */
1138     fitColumns : function(reserveScrollSpace){
1139         var cm = this.grid.colModel;
1140         var colCount = cm.getColumnCount();
1141         var cols = [];
1142         var width = 0;
1143         var i, w;
1144         for (i = 0; i < colCount; i++){
1145             if(!cm.isHidden(i) && !cm.isFixed(i)){
1146                 w = cm.getColumnWidth(i);
1147                 cols.push(i);
1148                 cols.push(w);
1149                 width += w;
1150             }
1151         }
1152         var avail = Math.min(this.scroller.dom.clientWidth, this.el.getWidth());
1153         if(reserveScrollSpace){
1154             avail -= 17;
1155         }
1156         var frac = (avail - cm.getTotalWidth())/width;
1157         while (cols.length){
1158             w = cols.pop();
1159             i = cols.pop();
1160             cm.setColumnWidth(i, Math.floor(w + w*frac), true);
1161         }
1162         this.updateColumns();
1163         this.layout();
1164     },
1165
1166     onRowSelect : function(rowIndex){
1167         var row = this.getRowComposite(rowIndex);
1168         row.addClass("x-grid-row-selected");
1169     },
1170
1171     onRowDeselect : function(rowIndex){
1172         var row = this.getRowComposite(rowIndex);
1173         row.removeClass("x-grid-row-selected");
1174     },
1175
1176     onCellSelect : function(row, col){
1177         var cell = this.getCell(row, col);
1178         if(cell){
1179             Roo.fly(cell).addClass("x-grid-cell-selected");
1180         }
1181     },
1182
1183     onCellDeselect : function(row, col){
1184         var cell = this.getCell(row, col);
1185         if(cell){
1186             Roo.fly(cell).removeClass("x-grid-cell-selected");
1187         }
1188     },
1189
1190     updateHeaderSortState : function(){
1191
1192         // sort state can be single { field: xxx, direction : yyy}
1193         // or   { xxx=>ASC , yyy : DESC ..... }
1194
1195         var mstate = {};
1196         if (!this.ds.multiSort) {
1197             var state = this.ds.getSortState();
1198             if(!state){
1199                 return;
1200             }
1201             mstate[state.field] = state.direction;
1202             // FIXME... - this is not used here.. but might be elsewhere..
1203             this.sortState = state;
1204
1205         } else {
1206             mstate = this.ds.sortToggle;
1207         }
1208         //remove existing sort classes..
1209
1210         var sc = this.sortClasses;
1211         var hds = this.el.select(this.headerSelector).removeClass(sc);
1212
1213         for(var f in mstate) {
1214
1215             var sortColumn = this.cm.findColumnIndex(f);
1216
1217             if(sortColumn != -1){
1218                 var sortDir = mstate[f];
1219                 hds.item(sortColumn).addClass(sc[sortDir == "DESC" ? 1 : 0]);
1220             }
1221         }
1222
1223
1224
1225     },
1226
1227
1228     handleHeaderClick : function(g, index,e){
1229
1230         Roo.log("header click");
1231
1232         if (Roo.isTouch) {
1233             // touch events on header are handled by context
1234             this.handleHdCtx(g,index,e);
1235             return;
1236         }
1237
1238
1239         if(this.headersDisabled){
1240             return;
1241         }
1242         var dm = g.dataSource, cm = g.colModel;
1243         if(!cm.isSortable(index)){
1244             return;
1245         }
1246         g.stopEditing();
1247
1248         if (dm.multiSort) {
1249             // update the sortOrder
1250             var so = [];
1251             for(var i = 0; i < cm.config.length; i++ ) {
1252
1253                 if ((typeof(dm.sortToggle[cm.config[i].dataIndex]) == 'undefined') && (index != i)) {
1254                     continue; // dont' bother, it's not in sort list or being set.
1255                 }
1256
1257                 so.push(cm.config[i].dataIndex);
1258             };
1259             dm.sortOrder = so;
1260         }
1261
1262
1263         dm.sort(cm.getDataIndex(index));
1264     },
1265
1266
1267     destroy : function(){
1268         if(this.colMenu){
1269             this.colMenu.removeAll();
1270             Roo.menu.MenuMgr.unregister(this.colMenu);
1271             this.colMenu.getEl().remove();
1272             delete this.colMenu;
1273         }
1274         if(this.hmenu){
1275             this.hmenu.removeAll();
1276             Roo.menu.MenuMgr.unregister(this.hmenu);
1277             this.hmenu.getEl().remove();
1278             delete this.hmenu;
1279         }
1280         if(this.grid.enableColumnMove){
1281             var dds = Roo.dd.DDM.ids['gridHeader' + this.grid.getGridEl().id];
1282             if(dds){
1283                 for(var dd in dds){
1284                     if(!dds[dd].config.isTarget && dds[dd].dragElId){
1285                         var elid = dds[dd].dragElId;
1286                         dds[dd].unreg();
1287                         Roo.get(elid).remove();
1288                     } else if(dds[dd].config.isTarget){
1289                         dds[dd].proxyTop.remove();
1290                         dds[dd].proxyBottom.remove();
1291                         dds[dd].unreg();
1292                     }
1293                     if(Roo.dd.DDM.locationCache[dd]){
1294                         delete Roo.dd.DDM.locationCache[dd];
1295                     }
1296                 }
1297                 delete Roo.dd.DDM.ids['gridHeader' + this.grid.getGridEl().id];
1298             }
1299         }
1300         Roo.util.CSS.removeStyleSheet(this.idToCssName(this.grid.id) + '-cssrules');
1301         this.bind(null, null);
1302         Roo.EventManager.removeResizeListener(this.onWindowResize, this);
1303     },
1304
1305     handleLockChange : function(){
1306         this.refresh(true);
1307     },
1308
1309     onDenyColumnLock : function(){
1310
1311     },
1312
1313     onDenyColumnHide : function(){
1314
1315     },
1316
1317     handleHdMenuClick : function(item){
1318         var index = this.hdCtxIndex;
1319         var cm = this.cm, ds = this.ds;
1320         switch(item.id){
1321             case "asc":
1322                 ds.sort(cm.getDataIndex(index), "ASC");
1323                 break;
1324             case "desc":
1325                 ds.sort(cm.getDataIndex(index), "DESC");
1326                 break;
1327             case "lock":
1328                 var lc = cm.getLockedCount();
1329                 if(cm.getColumnCount(true) <= lc+1){
1330                     this.onDenyColumnLock();
1331                     return;
1332                 }
1333                 if(lc != index){
1334                     cm.setLocked(index, true, true);
1335                     cm.moveColumn(index, lc);
1336                     this.grid.fireEvent("columnmove", index, lc);
1337                 }else{
1338                     cm.setLocked(index, true);
1339                 }
1340             break;
1341             case "unlock":
1342                 var lc = cm.getLockedCount();
1343                 if((lc-1) != index){
1344                     cm.setLocked(index, false, true);
1345                     cm.moveColumn(index, lc-1);
1346                     this.grid.fireEvent("columnmove", index, lc-1);
1347                 }else{
1348                     cm.setLocked(index, false);
1349                 }
1350             break;
1351             case 'wider': // used to expand cols on touch..
1352             case 'narrow':
1353                 var cw = cm.getColumnWidth(index);
1354                 cw += (item.id == 'wider' ? 1 : -1) * 50;
1355                 cw = Math.max(0, cw);
1356                 cw = Math.min(cw,4000);
1357                 cm.setColumnWidth(index, cw);
1358                 break;
1359
1360             default:
1361                 index = cm.getIndexById(item.id.substr(4));
1362                 if(index != -1){
1363                     if(item.checked && cm.getColumnCount(true) <= 1){
1364                         this.onDenyColumnHide();
1365                         return false;
1366                     }
1367                     cm.setHidden(index, item.checked);
1368                 }
1369         }
1370         return true;
1371     },
1372
1373     beforeColMenuShow : function(){
1374         var cm = this.cm,  colCount = cm.getColumnCount();
1375         this.colMenu.removeAll();
1376         for(var i = 0; i < colCount; i++){
1377             this.colMenu.add(new Roo.menu.CheckItem({
1378                 id: "col-"+cm.getColumnId(i),
1379                 text: cm.getColumnHeader(i),
1380                 checked: !cm.isHidden(i),
1381                 hideOnClick:false
1382             }));
1383         }
1384     },
1385
1386     handleHdCtx : function(g, index, e){
1387         e.stopEvent();
1388         var hd = this.getHeaderCell(index);
1389         this.hdCtxIndex = index;
1390         var ms = this.hmenu.items, cm = this.cm;
1391         ms.get("asc").setDisabled(!cm.isSortable(index));
1392         ms.get("desc").setDisabled(!cm.isSortable(index));
1393         if(this.grid.enableColLock !== false){
1394             ms.get("lock").setDisabled(cm.isLocked(index));
1395             ms.get("unlock").setDisabled(!cm.isLocked(index));
1396         }
1397         this.hmenu.show(hd, "tl-bl");
1398     },
1399
1400     handleHdOver : function(e){
1401         var hd = this.findHeaderCell(e.getTarget());
1402         if(hd && !this.headersDisabled){
1403             if(this.grid.colModel.isSortable(this.getCellIndex(hd))){
1404                this.fly(hd).addClass("x-grid-hd-over");
1405             }
1406         }
1407     },
1408
1409     handleHdOut : function(e){
1410         var hd = this.findHeaderCell(e.getTarget());
1411         if(hd){
1412             this.fly(hd).removeClass("x-grid-hd-over");
1413         }
1414     },
1415
1416     handleSplitDblClick : function(e, t){
1417         var i = this.getCellIndex(t);
1418         if(this.grid.enableColumnResize !== false && this.cm.isResizable(i) && !this.cm.isFixed(i)){
1419             this.autoSizeColumn(i, true);
1420             this.layout();
1421         }
1422     },
1423
1424     render : function(){
1425
1426         var cm = this.cm;
1427         var colCount = cm.getColumnCount();
1428
1429         if(this.grid.monitorWindowResize === true){
1430             Roo.EventManager.onWindowResize(this.onWindowResize, this, true);
1431         }
1432         var header = this.renderHeaders();
1433         var body = this.templates.body.apply({rows:""});
1434         var html = this.templates.master.apply({
1435             lockedBody: body,
1436             body: body,
1437             lockedHeader: header[0],
1438             header: header[1]
1439         });
1440
1441         //this.updateColumns();
1442
1443         this.grid.getGridEl().dom.innerHTML = html;
1444
1445         this.initElements();
1446
1447         // a kludge to fix the random scolling effect in webkit
1448         this.el.on("scroll", function() {
1449             this.el.dom.scrollTop=0; // hopefully not recursive..
1450         },this);
1451
1452         this.scroller.on("scroll", this.handleScroll, this);
1453         this.lockedBody.on("mousewheel", this.handleWheel, this);
1454         this.mainBody.on("mousewheel", this.handleWheel, this);
1455
1456         this.mainHd.on("mouseover", this.handleHdOver, this);
1457         this.mainHd.on("mouseout", this.handleHdOut, this);
1458         this.mainHd.on("dblclick", this.handleSplitDblClick, this,
1459                 {delegate: "."+this.splitClass});
1460
1461         this.lockedHd.on("mouseover", this.handleHdOver, this);
1462         this.lockedHd.on("mouseout", this.handleHdOut, this);
1463         this.lockedHd.on("dblclick", this.handleSplitDblClick, this,
1464                 {delegate: "."+this.splitClass});
1465
1466         if(this.grid.enableColumnResize !== false && Roo.grid.SplitDragZone){
1467             new Roo.grid.SplitDragZone(this.grid, this.lockedHd.dom, this.mainHd.dom);
1468         }
1469
1470         this.updateSplitters();
1471
1472         if(this.grid.enableColumnMove && Roo.grid.HeaderDragZone){
1473             new Roo.grid.HeaderDragZone(this.grid, this.lockedHd.dom, this.mainHd.dom);
1474             new Roo.grid.HeaderDropZone(this.grid, this.lockedHd.dom, this.mainHd.dom);
1475         }
1476
1477         if(this.grid.enableCtxMenu !== false && Roo.menu.Menu){
1478             this.hmenu = new Roo.menu.Menu({id: this.grid.id + "-hctx"});
1479             this.hmenu.add(
1480                 {id:"asc", text: this.sortAscText, cls: "xg-hmenu-sort-asc"},
1481                 {id:"desc", text: this.sortDescText, cls: "xg-hmenu-sort-desc"}
1482             );
1483             if(this.grid.enableColLock !== false){
1484                 this.hmenu.add('-',
1485                     {id:"lock", text: this.lockText, cls: "xg-hmenu-lock"},
1486                     {id:"unlock", text: this.unlockText, cls: "xg-hmenu-unlock"}
1487                 );
1488             }
1489             if (Roo.isTouch) {
1490                  this.hmenu.add('-',
1491                     {id:"wider", text: this.columnsWiderText},
1492                     {id:"narrow", text: this.columnsNarrowText }
1493                 );
1494
1495
1496             }
1497
1498             if(this.grid.enableColumnHide !== false){
1499
1500                 this.colMenu = new Roo.menu.Menu({id:this.grid.id + "-hcols-menu"});
1501                 this.colMenu.on("beforeshow", this.beforeColMenuShow, this);
1502                 this.colMenu.on("itemclick", this.handleHdMenuClick, this);
1503
1504                 this.hmenu.add('-',
1505                     {id:"columns", text: this.columnsText, menu: this.colMenu}
1506                 );
1507             }
1508             this.hmenu.on("itemclick", this.handleHdMenuClick, this);
1509
1510             this.grid.on("headercontextmenu", this.handleHdCtx, this);
1511         }
1512
1513         if((this.grid.enableDragDrop || this.grid.enableDrag) && Roo.grid.GridDragZone){
1514             this.dd = new Roo.grid.GridDragZone(this.grid, {
1515                 ddGroup : this.grid.ddGroup || 'GridDD'
1516             });
1517
1518         }
1519
1520         /*
1521         for(var i = 0; i < colCount; i++){
1522             if(cm.isHidden(i)){
1523                 this.hideColumn(i);
1524             }
1525             if(cm.config[i].align){
1526                 this.css.updateRule(this.colSelector + i, "textAlign", cm.config[i].align);
1527                 this.css.updateRule(this.hdSelector + i, "textAlign", cm.config[i].align);
1528             }
1529         }*/
1530
1531         this.updateHeaderSortState();
1532
1533         this.beforeInitialResize();
1534         this.layout(true);
1535
1536         // two part rendering gives faster view to the user
1537         this.renderPhase2.defer(1, this);
1538     },
1539
1540     renderPhase2 : function(){
1541         // render the rows now
1542         this.refresh();
1543         if(this.grid.autoSizeColumns){
1544             this.autoSizeColumns();
1545         }
1546     },
1547
1548     beforeInitialResize : function(){
1549
1550     },
1551
1552     onColumnSplitterMoved : function(i, w){
1553         this.userResized = true;
1554         var cm = this.grid.colModel;
1555         cm.setColumnWidth(i, w, true);
1556         var cid = cm.getColumnId(i);
1557         this.css.updateRule(this.colSelector + this.idToCssName(cid), "width", (w-this.borderWidth) + "px");
1558         this.css.updateRule(this.hdSelector + this.idToCssName(cid), "width", (w-this.borderWidth) + "px");
1559         this.updateSplitters();
1560         this.layout();
1561         this.grid.fireEvent("columnresize", i, w);
1562     },
1563
1564     syncRowHeights : function(startIndex, endIndex){
1565         if(this.grid.enableRowHeightSync === true && this.cm.getLockedCount() > 0){
1566             startIndex = startIndex || 0;
1567             var mrows = this.getBodyTable().rows;
1568             var lrows = this.getLockedTable().rows;
1569             var len = mrows.length-1;
1570             endIndex = Math.min(endIndex || len, len);
1571             for(var i = startIndex; i <= endIndex; i++){
1572                 var m = mrows[i], l = lrows[i];
1573                 var h = Math.max(m.offsetHeight, l.offsetHeight);
1574                 m.style.height = l.style.height = h + "px";
1575             }
1576         }
1577     },
1578
1579     layout : function(initialRender, is2ndPass){
1580         var g = this.grid;
1581         var auto = g.autoHeight;
1582         var scrollOffset = 16;
1583         var c = g.getGridEl(), cm = this.cm,
1584                 expandCol = g.autoExpandColumn,
1585                 gv = this;
1586         //c.beginMeasure();
1587
1588         if(!c.dom.offsetWidth){ // display:none?
1589             if(initialRender){
1590                 this.lockedWrap.show();
1591                 this.mainWrap.show();
1592             }
1593             return;
1594         }
1595
1596         var hasLock = this.cm.isLocked(0);
1597
1598         var tbh = this.headerPanel.getHeight();
1599         var bbh = this.footerPanel.getHeight();
1600
1601         if(auto){
1602             var ch = this.getBodyTable().offsetHeight + tbh + bbh + this.mainHd.getHeight();
1603             var newHeight = ch + c.getBorderWidth("tb");
1604             if(g.maxHeight){
1605                 newHeight = Math.min(g.maxHeight, newHeight);
1606             }
1607             c.setHeight(newHeight);
1608         }
1609
1610         if(g.autoWidth){
1611             c.setWidth(cm.getTotalWidth()+c.getBorderWidth('lr'));
1612         }
1613
1614         var s = this.scroller;
1615
1616         var csize = c.getSize(true);
1617
1618         this.el.setSize(csize.width, csize.height);
1619
1620         this.headerPanel.setWidth(csize.width);
1621         this.footerPanel.setWidth(csize.width);
1622
1623         var hdHeight = this.mainHd.getHeight();
1624         var vw = csize.width;
1625         var vh = csize.height - (tbh + bbh);
1626
1627         s.setSize(vw, vh);
1628
1629         var bt = this.getBodyTable();
1630         var ltWidth = hasLock ?
1631                       Math.max(this.getLockedTable().offsetWidth, this.lockedHd.dom.firstChild.offsetWidth) : 0;
1632
1633         var scrollHeight = bt.offsetHeight;
1634         var scrollWidth = ltWidth + bt.offsetWidth;
1635         var vscroll = false, hscroll = false;
1636
1637         this.scrollSizer.setSize(scrollWidth, scrollHeight+hdHeight);
1638
1639         var lw = this.lockedWrap, mw = this.mainWrap;
1640         var lb = this.lockedBody, mb = this.mainBody;
1641
1642         setTimeout(function(){
1643             var t = s.dom.offsetTop;
1644             var w = s.dom.clientWidth,
1645                 h = s.dom.clientHeight;
1646
1647             lw.setTop(t);
1648             lw.setSize(ltWidth, h);
1649
1650             mw.setLeftTop(ltWidth, t);
1651             mw.setSize(w-ltWidth, h);
1652
1653             lb.setHeight(h-hdHeight);
1654             mb.setHeight(h-hdHeight);
1655
1656             if(is2ndPass !== true && !gv.userResized && expandCol){
1657                 // high speed resize without full column calculation
1658
1659                 var ci = cm.getIndexById(expandCol);
1660                 if (ci < 0) {
1661                     ci = cm.findColumnIndex(expandCol);
1662                 }
1663                 ci = Math.max(0, ci); // make sure it's got at least the first col.
1664                 var expandId = cm.getColumnId(ci);
1665                 var  tw = cm.getTotalWidth(false);
1666                 var currentWidth = cm.getColumnWidth(ci);
1667                 var cw = Math.min(Math.max(((w-tw)+currentWidth-2)-/*scrollbar*/(w <= s.dom.offsetWidth ? 0 : 18), g.autoExpandMin), g.autoExpandMax);
1668                 if(currentWidth != cw){
1669                     cm.setColumnWidth(ci, cw, true);
1670                     gv.css.updateRule(gv.colSelector+gv.idToCssName(expandId), "width", (cw - gv.borderWidth) + "px");
1671                     gv.css.updateRule(gv.hdSelector+gv.idToCssName(expandId), "width", (cw - gv.borderWidth) + "px");
1672                     gv.updateSplitters();
1673                     gv.layout(false, true);
1674                 }
1675             }
1676
1677             if(initialRender){
1678                 lw.show();
1679                 mw.show();
1680             }
1681             //c.endMeasure();
1682         }, 10);
1683     },
1684
1685     onWindowResize : function(){
1686         if(!this.grid.monitorWindowResize || this.grid.autoHeight){
1687             return;
1688         }
1689         this.layout();
1690     },
1691
1692     appendFooter : function(parentEl){
1693         return null;
1694     },
1695
1696     sortAscText : "Sort Ascending",
1697     sortDescText : "Sort Descending",
1698     lockText : "Lock Column",
1699     unlockText : "Unlock Column",
1700     columnsText : "Columns",
1701
1702     columnsWiderText : "Wider",
1703     columnsNarrowText : "Thinner"
1704 });
1705
1706
1707 Roo.grid.GridView.ColumnDragZone = function(grid, hd){
1708     Roo.grid.GridView.ColumnDragZone.superclass.constructor.call(this, grid, hd, null);
1709     this.proxy.el.addClass('x-grid3-col-dd');
1710 };
1711
1712 Roo.extend(Roo.grid.GridView.ColumnDragZone, Roo.grid.HeaderDragZone, {
1713     handleMouseDown : function(e){
1714
1715     },
1716
1717     callHandleMouseDown : function(e){
1718         Roo.grid.GridView.ColumnDragZone.superclass.handleMouseDown.call(this, e);
1719     }
1720 });