首页 > 代码库 > Ext3.x版本锁定列和多表头的插件
Ext3.x版本锁定列和多表头的插件
Ext3.x版本的锁定列和多表头都是通过插件实现，但是这两个插件不能一起工作，而实际上这样的业务也是存在的，即在多表头的情况下也需要锁定列。
在Ext的论坛上有很多这样的需求，都没有一个解决方案，除了一个需要收费的（150没有），而且联系起来也麻烦。后面决定自己做一个。
效果如下图：
使用方法：
this.view = new Ext.ux.grid.LockingHeaderGroupView({grows : [[{},{},{},{"align":"center","colspan":2,"header":"合并后名称"},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}]]});
文件：
/*! * Ext JS Library 3.3.0 * Copyright(c) 2006-2010 Ext JS, Inc. * licensing@extjs.com * http://www.extjs.com/license */Ext.ns(‘Ext.ux.grid‘);Ext.ux.grid.LockingHeaderGroupView = Ext.extend(Ext.grid.GridView, { lockText : ‘锁定‘, unlockText : ‘解锁‘, rowBorderWidth : 1, lockedBorderWidth : 1, //先支持只有两层的多表头情况 //从外部传入 //grows : [[{},{},{},{"align":"center","colspan":2,"header":"合并后名称"},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}]], /* * This option ensures that height between the rows is synchronized * between the locked and unlocked sides. This option only needs to be used * when the row heights aren‘t predictable. */ syncHeights: false, initTemplates : function(){ var ts = this.templates || {}; if (!ts.masterTpl) { ts.masterTpl = new Ext.Template( ‘<div class="x-grid3" hidefocus="true">‘, ‘<div class="x-grid3-locked">‘, ‘<div class="x-grid3-header"><div class="x-grid3-header-inner"><div class="x-grid3-header-offset" style="{lstyle}">{lockedHeader}</div></div><div class="x-clear"></div></div>‘, //‘<div class="x-grid3-scroller"><div class="x-grid3-body" style="{lstyle}">{lockedBody}</div><div class="x-grid3-scroll-spacer"></div></div>‘, //锁定列加合计时，会导致合计行锁定部分和未锁定部分错行 ‘<div class="x-grid3-scroller"><div class="x-grid3-body" style="{lstyle}">{lockedBody}</div></div>‘, ‘</div>‘, ‘<div class="x-grid3-viewport x-grid3-unlocked">‘, ‘<div class="x-grid3-header"><div class="x-grid3-header-inner"><div class="x-grid3-header-offset" style="{ostyle}">{header}</div></div><div class="x-clear"></div></div>‘, ‘<div class="x-grid3-scroller"><div class="x-grid3-body" style="{bstyle}">{body}</div><a href="http://www.mamicode.com/#" class="x-grid3-focus" tabIndex="-1"></a></div>‘, ‘</div>‘, ‘<div class="x-grid3-resize-marker"> </div>‘, ‘<div class="x-grid3-resize-proxy"> </div>‘, ‘</div>‘ ); } if(!ts.gcell){ 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="http://www.mamicode.com/#"></a>‘ : ‘‘, ‘{value}</div></td>‘); } this.hrowRe = new RegExp("ux-grid-hd-group-row-(\\d+)", ""); this.templates = ts; Ext.ux.grid.LockingHeaderGroupView.superclass.initTemplates.call(this); }, getEditorParent : function(ed){ return this.el.dom; }, initElements : function(){ var el = Ext.get(this.grid.getGridEl().dom.firstChild), lockedWrap = el.child(‘div.x-grid3-locked‘), lockedHd = lockedWrap.child(‘div.x-grid3-header‘), lockedScroller = lockedWrap.child(‘div.x-grid3-scroller‘), mainWrap = el.child(‘div.x-grid3-viewport‘), mainHd = mainWrap.child(‘div.x-grid3-header‘), scroller = mainWrap.child(‘div.x-grid3-scroller‘); if (this.grid.hideHeaders) { lockedHd.setDisplayed(false); mainHd.setDisplayed(false); } if(this.forceFit){ scroller.setStyle(‘overflow-x‘, ‘hidden‘); } Ext.apply(this, { el : el, mainWrap: mainWrap, mainHd : mainHd, innerHd : mainHd.dom.firstChild, scroller: scroller, mainBody: scroller.child(‘div.x-grid3-body‘), focusEl : scroller.child(‘a‘), resizeMarker: el.child(‘div.x-grid3-resize-marker‘), resizeProxy : el.child(‘div.x-grid3-resize-proxy‘), lockedWrap: lockedWrap, lockedHd: lockedHd, lockedScroller: lockedScroller, lockedBody: lockedScroller.child(‘div.x-grid3-body‘), lockedInnerHd: lockedHd.child(‘div.x-grid3-header-inner‘, true) }); this.focusEl.swallowEvent(‘click‘, true); }, getLockedRows : function(){ return this.hasRows() ? this.lockedBody.dom.childNodes : []; }, getLockedRow : function(row){ return this.getLockedRows()[row]; }, getCell : function(row, col){ var lockedLen = this.cm.getLockedCount(); if(col < lockedLen){ return this.getLockedRow(row).getElementsByTagName(‘td‘)[col]; } return Ext.ux.grid.LockingHeaderGroupView.superclass.getCell.call(this, row, col - lockedLen); }, getHeaderCell : function(index){ var lockedLen = this.cm.getLockedCount(); if(index < lockedLen){ return this.lockedHd.dom.getElementsByTagName(‘td‘)[index]; } return Ext.ux.grid.LockingHeaderGroupView.superclass.getHeaderCell.call(this, index - lockedLen); }, addRowClass : function(row, cls){ var lockedRow = this.getLockedRow(row); if(lockedRow){ this.fly(lockedRow).addClass(cls); } Ext.ux.grid.LockingHeaderGroupView.superclass.addRowClass.call(this, row, cls); }, removeRowClass : function(row, cls){ var lockedRow = this.getLockedRow(row); if(lockedRow){ this.fly(lockedRow).removeClass(cls); } Ext.ux.grid.LockingHeaderGroupView.superclass.removeRowClass.call(this, row, cls); }, removeRow : function(row) { Ext.removeNode(this.getLockedRow(row)); Ext.ux.grid.LockingHeaderGroupView.superclass.removeRow.call(this, row); }, removeRows : function(firstRow, lastRow){ var lockedBody = this.lockedBody.dom, rowIndex = firstRow; for(; rowIndex <= lastRow; rowIndex++){ Ext.removeNode(lockedBody.childNodes[firstRow]); } Ext.ux.grid.LockingHeaderGroupView.superclass.removeRows.call(this, firstRow, lastRow); }, syncScroll : function(e){ this.lockedScroller.dom.scrollTop = this.scroller.dom.scrollTop; Ext.ux.grid.LockingHeaderGroupView.superclass.syncScroll.call(this, e); }, updateSortIcon : function(col, dir){ var sortClasses = this.sortClasses, lockedHeaders = this.lockedHd.select(‘td‘).removeClass(sortClasses), headers = this.mainHd.select(‘td‘).removeClass(sortClasses), lockedLen = this.cm.getLockedCount(), cls = sortClasses[dir == ‘DESC‘ ? 1 : 0]; if(col < lockedLen){ lockedHeaders.item(col).addClass(cls); }else{ headers.item(col - lockedLen).addClass(cls); } }, updateAllColumnWidths : function(){ var tw = this.getTotalWidth(), clen = this.cm.getColumnCount(), lw = this.getLockedWidth(), llen = this.cm.getLockedCount(), ws = [], len, i; this.updateLockedWidth(); for(i = 0; i < clen; i++){ ws[i] = this.getColumnWidth(i); var hd = this.getHeaderCell(i); hd.style.width = ws[i]; } var lns = this.getLockedRows(), ns = this.getRows(), row, trow, j; for(i = 0, len = ns.length; i < len; i++){ row = lns[i]; row.style.width = lw; if(row.firstChild){ row.firstChild.style.width = lw; trow = row.firstChild.rows[0]; for (j = 0; j < llen; j++) { trow.childNodes[j].style.width = ws[j]; } } row = ns[i]; row.style.width = tw; if(row.firstChild){ row.firstChild.style.width = tw; trow = row.firstChild.rows[0]; for (j = llen; j < clen; j++) { trow.childNodes[j - llen].style.width = ws[j]; } } } this.onAllColumnWidthsUpdated(ws, tw); this.syncHeaderHeight(); }, updateColumnWidth : function(col, width){ var w = this.getColumnWidth(col), llen = this.cm.getLockedCount(), ns, rw, c, row; this.updateLockedWidth(); if(col < llen){ ns = this.getLockedRows(); rw = this.getLockedWidth(); c = col; }else{ ns = this.getRows(); rw = this.getTotalWidth(); c = col - llen; } var hd = this.getHeaderCell(col); hd.style.width = w; for(var i = 0, len = ns.length; i < len; i++){ row = ns[i]; row.style.width = rw; if(row.firstChild){ row.firstChild.style.width = rw; row.firstChild.rows[0].childNodes[c].style.width = w; } } this.onColumnWidthUpdated(col, w, this.getTotalWidth()); this.syncHeaderHeight(); }, updateColumnHidden : function(col, hidden){ var llen = this.cm.getLockedCount(), ns, rw, c, row, display = hidden ? ‘none‘ : ‘‘; this.updateLockedWidth(); if(col < llen){ ns = this.getLockedRows(); rw = this.getLockedWidth(); c = col; }else{ ns = this.getRows(); rw = this.getTotalWidth(); c = col - llen; } var hd = this.getHeaderCell(col); hd.style.display = display; for(var i = 0, len = ns.length; i < len; i++){ row = ns[i]; row.style.width = rw; if(row.firstChild){ row.firstChild.style.width = rw; row.firstChild.rows[0].childNodes[c].style.display = display; } } this.onColumnHiddenUpdated(col, hidden, this.getTotalWidth()); delete this.lastViewWidth; this.layout(); }, doRender : function(cs, rs, ds, startRow, colCount, stripe){ var ts = this.templates, ct = ts.cell, rt = ts.row, last = colCount-1, tstyle = ‘width:‘+this.getTotalWidth()+‘;‘, lstyle = ‘width:‘+this.getLockedWidth()+‘;‘, buf = [], lbuf = [], cb, lcb, c, p = {}, rp = {}, r; for(var j = 0, len = rs.length; j < len; j++){ r = rs[j]; cb = []; lcb = []; var rowIndex = (j+startRow); for(var i = 0; i < colCount; i++){ c = cs[i]; p.id = c.id; p.css = (i === 0 ? ‘x-grid3-cell-first ‘ : (i == last ? ‘x-grid3-cell-last ‘ : ‘‘)) + (this.cm.config[i].cellCls ? ‘ ‘ + this.cm.config[i].cellCls : ‘‘); p.attr = p.cellAttr = ‘‘; p.style = c.style; //根据配置加入渲染前事件 if(c.scope && c.scope.beforeRenderer){ c.scope.beforeRenderer.call(c.scope, r.data[c.name], p, r, j, i); } p.value = c.renderer(r.data[c.name], p, r, rowIndex, i, ds); if(Ext.isEmpty(p.value)){ p.value = ‘ ‘; } if(this.markDirty && r.dirty && Ext.isDefined(r.modified[c.name])){ p.css += ‘ x-grid3-dirty-cell‘; } if(c.locked){ lcb[lcb.length] = ct.apply(p); }else{ cb[cb.length] = ct.apply(p); } } var alt = []; if(stripe && ((rowIndex+1) % 2 === 0)){ alt[0] = ‘x-grid3-row-alt‘; } if(r.dirty){ alt[1] = ‘ x-grid3-dirty-row‘; } rp.cols = colCount; if(this.getRowClass){ alt[2] = this.getRowClass(r, rowIndex, rp, ds); } rp.alt = alt.join(‘ ‘); rp.cells = cb.join(‘‘); rp.tstyle = tstyle; buf[buf.length] = rt.apply(rp); rp.cells = lcb.join(‘‘); rp.tstyle = lstyle; lbuf[lbuf.length] = rt.apply(rp); } return [buf.join(‘‘), lbuf.join(‘‘)]; }, processRows : function(startRow, skipStripe){ if(!this.ds || this.ds.getCount() < 1){ return; } var rows = this.getRows(), lrows = this.getLockedRows(), row, lrow; skipStripe = skipStripe || !this.grid.stripeRows; startRow = startRow || 0; for(var i = 0, len = rows.length; i < len; ++i){ row = rows[i]; lrow = lrows[i]; row.rowIndex = i; lrow.rowIndex = i; if(!skipStripe){ row.className = row.className.replace(this.rowClsRe, ‘ ‘); lrow.className = lrow.className.replace(this.rowClsRe, ‘ ‘); if ((i + 1) % 2 === 0){ row.className += ‘ x-grid3-row-alt‘; lrow.className += ‘ x-grid3-row-alt‘; } } this.syncRowHeights(row, lrow); } if(startRow === 0){ Ext.fly(rows[0]).addClass(this.firstRowCls); Ext.fly(lrows[0]).addClass(this.firstRowCls); } Ext.fly(rows[rows.length - 1]).addClass(this.lastRowCls); Ext.fly(lrows[lrows.length - 1]).addClass(this.lastRowCls); }, syncRowHeights: function(row1, row2){ if(this.syncHeights){ var el1 = Ext.get(row1), el2 = Ext.get(row2), h1 = el1.getHeight(), h2 = el2.getHeight(); if(h1 > h2){ el2.setHeight(h1); }else if(h2 > h1){ el1.setHeight(h2); } } }, afterRender : function(){ if(!this.ds || !this.cm){ return; } var bd = this.renderRows() || [‘ ‘, ‘ ‘]; this.mainBody.dom.innerHTML = bd[0]; this.lockedBody.dom.innerHTML = bd[1]; this.processRows(0, true); if(this.deferEmptyText !== true){ this.applyEmptyText(); } this.grid.fireEvent(‘viewready‘, this.grid); }, renderUI : function(){ var templates = this.templates, header = this.renderHeaders(), body = templates.body.apply({rows:‘ ‘}); return templates.masterTpl.apply({ body : body, header: header[0], ostyle: ‘width:‘ + this.getOffsetWidth() + ‘;‘, bstyle: ‘width:‘ + this.getTotalWidth() + ‘;‘, lockedBody: body, lockedHeader: header[1], lstyle: ‘width:‘+this.getLockedWidth()+‘;‘ }); }, afterRenderUI: function(){ var g = this.grid; this.initElements(); Ext.fly(this.innerHd).on(‘click‘, this.handleHdDown, this); Ext.fly(this.lockedInnerHd).on(‘click‘, this.handleHdDown, this); this.mainHd.on({ scope: this, mouseover: this.handleHdOver, mouseout: this.handleHdOut, mousemove: this.handleHdMove }); this.lockedHd.on({ scope: this, mouseover: this.handleHdOver, mouseout: this.handleHdOut, mousemove: this.handleHdMove }); this.scroller.on(‘scroll‘, this.syncScroll, this); if(g.enableColumnResize !== false){ this.splitZone = new Ext.grid.GridView.SplitDragZone(g, this.mainHd.dom); this.splitZone.setOuterHandleElId(Ext.id(this.lockedHd.dom)); this.splitZone.setOuterHandleElId(Ext.id(this.mainHd.dom)); } if(g.enableColumnMove){ this.columnDrag = new Ext.grid.GridView.ColumnDragZone(g, this.innerHd); this.columnDrag.setOuterHandleElId(Ext.id(this.lockedInnerHd)); this.columnDrag.setOuterHandleElId(Ext.id(this.innerHd)); this.columnDrop = new Ext.grid.HeaderDropZone(g, this.mainHd.dom); } if(g.enableHdMenu !== false){ this.hmenu = new Ext.menu.Menu({id: g.id + ‘-hctx‘}); this.hmenu.add( {itemId: ‘asc‘, text: this.sortAscText, cls: ‘xg-hmenu-sort-asc‘}, {itemId: ‘desc‘, text: this.sortDescText, cls: ‘xg-hmenu-sort-desc‘} ); if(this.grid.enableColLock !== false){ this.hmenu.add(‘-‘, {itemId: ‘lock‘, text: this.lockText, cls: ‘xg-hmenu-lock‘}, {itemId: ‘unlock‘, text: this.unlockText, cls: ‘xg-hmenu-unlock‘} ); } if(g.enableColumnHide !== false){ this.colMenu = new Ext.menu.Menu({id:g.id + ‘-hcols-menu‘}); this.colMenu.on({ scope: this, beforeshow: this.beforeColMenuShow, itemclick: this.handleHdMenuClick }); this.hmenu.add(‘-‘, { itemId:‘columns‘, hideOnClick: false, text: this.columnsText, menu: this.colMenu, iconCls: ‘x-cols-icon‘ }); } this.hmenu.on(‘itemclick‘, this.handleHdMenuClick, this); } if(g.trackMouseOver){ this.mainBody.on({ scope: this, mouseover: this.onRowOver, mouseout: this.onRowOut }); this.lockedBody.on({ scope: this, mouseover: this.onRowOver, mouseout: this.onRowOut }); } if(g.enableDragDrop || g.enableDrag){ this.dragZone = new Ext.grid.GridDragZone(g, { ddGroup : g.ddGroup || ‘GridDD‘ }); } this.updateHeaderSortState(); }, layout : function(){ if(!this.mainBody){ return; } var g = this.grid; var c = g.getGridEl(); var csize = c.getSize(true); var vw = csize.width; if(!g.hideHeaders && (vw < 20 || csize.height < 20)){ return; } this.syncHeaderHeight(); if(g.autoHeight){ this.scroller.dom.style.overflow = ‘visible‘; this.lockedScroller.dom.style.overflow = ‘visible‘; if(Ext.isWebKit){ this.scroller.dom.style.position = ‘static‘; this.lockedScroller.dom.style.position = ‘static‘; } }else{ this.el.setSize(csize.width, csize.height); var hdHeight = this.mainHd.getHeight(); var vh = csize.height - (hdHeight); } this.updateLockedWidth(); if(this.forceFit){ if(this.lastViewWidth != vw){ this.fitColumns(false, false); this.lastViewWidth = vw; } }else { this.autoExpand(); this.syncHeaderScroll(); } this.onLayout(vw, vh); }, getOffsetWidth : function() { return (this.cm.getTotalWidth() - this.cm.getTotalLockedWidth() + this.getScrollOffset()) + ‘px‘; }, //GROUP 方法 getGroupStyle: function(group, gcol){ var width = 0, hidden = true; for(var i = gcol, len = gcol + group.colspan; i < len; i++){ if(!this.cm.isHidden(i)){ var cw = this.cm.getColumnWidth(i); if(typeof cw == ‘number‘){ width += cw; } hidden = false; } } if(group.colspan > 1){ if(Ext.isWebKit){ width += (group.colspan-1); }else if (Ext.isIE7){ width = width-2; }else{ width--; } }else{ if(Ext.isGecko){ if(gcol==1 || gcol == 3){ width++; } } } return { width: (Ext.isBorderBox || (Ext.isWebKit && !Ext.isSafari2) ? width : Math.max(width - this.borderWidth, 0)) + ‘px‘, hidden: hidden }; }, updateGroupStyles: function(col){ var tables = this.mainHd.query(‘.x-grid3-header-offset > table‘), tw = this.getTotalWidth(), grows = this.grows; for(var row = 0; row < tables.length; row++){ tables[row].style.width = tw; if(row < grows.length){ var cells = tables[row].firstChild.firstChild.childNodes; for(var i = 0, gcol = 0; i < cells.length; i++){ var group = grows[row][i]; if((typeof col != ‘number‘) || (col >= gcol && col < gcol + group.colspan)){ var gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol); cells[i].style.width = gs.width; cells[i].style.display = gs.hidden ? ‘none‘ : ‘‘; } gcol += group.colspan; } } } }, getGroupRowIndex: function(el){ if(el){ var m = el.className.match(this.hrowRe); if(m && m[1]){ return parseInt(m[1], 10); } } return this.grows.length; }, getGroupSpan: function(row, col){ if(row < 0){ return { col: 0, colspan: this.cm.getColumnCount() }; } var r = this.grows[row]; if(r){ for(var i = 0, gcol = 0, len = r.length; i < len; i++){ var group = r[i]; if(col >= gcol && col < gcol + group.colspan){ return { col: gcol, colspan: group.colspan }; } gcol += group.colspan; } return { col: gcol, colspan: 0 }; } return { col: col, colspan: 1 }; }, renderHeaders: function(){ var ts = this.templates, headers = [], cm = this.cm, grows = this.grows; var len = cm.getColumnCount(); if(!grows || grows.length == 0){ //没有多表头， return this.getLockingHeaders(); } var lockIndex = -1,lockGrows=[],unlockGrows=[]; for(var i = 0; i < len; i++){ if(cm.isLocked(i)){ //这个字段是锁定字段，根据这个字段所处的位置，将多表头定义的rows分割成两部分 //注意不能break，需要找到最后的一个locked字段 lockIndex = i; } } grows = grows[0];//FIXME 定义分组情况的数组，只支持两级分组 //lockIndex = 5; //[{},{},{},{"align":"center","colspan":2,"header":"合并后名称"},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}] if(lockIndex >= 0){ var index = 0; for(var i=0;i<grows.length;i++){ var group = grows[i]; var colspan = group.colspan || 1; index = i+colspan; if(lockIndex >= (index-1)){ lockGrows.push(group); }else{ unlockGrows.push(group); } } } var lastLockCol = 0; for(var i=0;i<lockGrows.length;i++){ var g = lockGrows[i]; lastLockCol += (g.colspan || 1); } //分组表头，包括锁定的分组和未锁定的分组 var lockGroupHeader = this.getGroupHeader(lockGrows,true,0); var unlockGroupHeader = this.getGroupHeader(unlockGrows,false,lastLockCol); //实际的表头，包括锁定和未锁定 var lockingHeaders = this.getLockingHeaders(); var s1 = [unlockGroupHeader,lockingHeaders[0]].join(‘‘); var s2 = [lockGroupHeader,lockingHeaders[1]].join(‘‘); return [s1,s2]; }, /** * 返回多表头的header部分 * @param {} grows 列的集合，可能是锁定部分和未锁定部分 * @param {} lockflag 是否锁定的标识 * @param {} firstIndex 比如对于未锁定部分，表示的就是：lockGrows的第一个元素在整个cm的位置 * @return {} */ getGroupHeader : function(grows,lockflag,lastLockCol){ var ts = this.templates,cm = this.cm,cells = []; for(var i = 0, len = grows.length; i < len; i++){ var group = grows[i]; group.colspan = group.colspan || 1; //FIXME 如果没有分组的列，那么需要加入一个style，参见GridView.getColumnStyle var colIndex = group.dataIndex ? cm.findColumnIndex(group.dataIndex) : lastLockCol; //最底下的一层分组（不计算表格的header这一组） if(group.colspan == 1){ cm.config[colIndex].marginTop = true; } var id = this.getColumnId(colIndex), gs = this.getGroupStyle.call(this, group, lastLockCol); cells[i] = ts.gcell.apply({ cls: (group.header && group.header!=‘‘) ? ‘ux-grid-hd-group-cell‘ : ‘ux-grid-hd-nogroup-cell‘, id: id, row: 0, style: ‘width:‘ + gs.width + ‘;‘ + (gs.hidden ? ‘display:none;‘ : ‘‘) + (group.align ? ‘text-align:‘ + group.align + ‘;‘ : ‘‘), tooltip: group.tooltip ? (Ext.QuickTips.isEnabled() ? ‘ext:qtip‘ : ‘title‘) + ‘="‘ + group.tooltip + ‘"‘ : ‘‘, istyle: group.align == ‘right‘ ? ‘padding-right:16px‘ : ‘‘, btn: this.grid.enableHdMenu && group.header, value: group.header || ‘ ‘ }); lastLockCol += group.colspan; } var tstyle = ‘width:‘+this.getLockedWidth()+‘;‘; if(!lockflag){ tstyle = ‘width:‘+this.getTotalWidth()+‘;‘; } //加入合并的表头 return ts.header.apply({ cells: cells.join(‘‘), tstyle:tstyle }); }, /** * 返回锁定列的表头部分 * @return {} */ getLockingHeaders : function(){ var cm = this.cm, ts = this.templates, ct = ts.hcell, cb = [], lcb = [], p = {}, len = cm.getColumnCount(), last = len - 1; for(var i = 0; i < len; i++){ p.id = cm.getColumnId(i); p.value = cm.getColumnHeader(i) || ‘‘; p.style = this.getColumnStyle(i, true); p.tooltip = this.getColumnTooltip(i); p.css = (i === 0 ? ‘x-grid3-cell-first ‘ : (i == last ? ‘x-grid3-cell-last ‘ : ‘‘)) + (cm.config[i].headerCls ? ‘ ‘ + cm.config[i].headerCls : ‘‘); if(cm.config[i].align == ‘right‘){ p.istyle = ‘padding-right:16px‘; } else { delete p.istyle; } //FIXME 如果是多表头的情况下，需要设置文字上下居中，这里只针对适合2组表头的情况.marginTop在ColumnHeaderGroup.js中设置了 if(!p.istyle){ p.istyle = ‘‘; } if(cm.config[i].marginTop && !cm.config[i].hidden){ p.istyle += ‘;margin-top:-20px;height:40px;line-height:40px;‘; } if(cm.isLocked(i)){ lcb[lcb.length] = ct.apply(p); }else{ cb[cb.length] = ct.apply(p); } } return [ts.header.apply({cells: cb.join(‘‘), tstyle:‘width:‘+this.getTotalWidth()+‘;‘}), ts.header.apply({cells: lcb.join(‘‘), tstyle:‘width:‘+this.getLockedWidth()+‘;‘})]; }, updateHeaders : function(){ var hd = this.renderHeaders(); this.innerHd.firstChild.innerHTML = hd[0]; this.innerHd.firstChild.style.width = this.getOffsetWidth(); this.innerHd.firstChild.firstChild.style.width = this.getTotalWidth(); this.lockedInnerHd.firstChild.innerHTML = hd[1]; var lw = this.getLockedWidth(); this.lockedInnerHd.firstChild.style.width = lw; this.lockedInnerHd.firstChild.firstChild.style.width = lw; }, getResolvedXY : function(resolved){ if(!resolved){ return null; } var c = resolved.cell, r = resolved.row; return c ? Ext.fly(c).getXY() : [this.scroller.getX(), Ext.fly(r).getY()]; }, syncFocusEl : function(row, col, hscroll){ Ext.ux.grid.LockingHeaderGroupView.superclass.syncFocusEl.call(this, row, col, col < this.cm.getLockedCount() ? false : hscroll); }, ensureVisible : function(row, col, hscroll){ return Ext.ux.grid.LockingHeaderGroupView.superclass.ensureVisible.call(this, row, col, col < this.cm.getLockedCount() ? false : hscroll); }, insertRows : function(dm, firstRow, lastRow, isUpdate){ var last = dm.getCount() - 1; if(!isUpdate && firstRow === 0 && lastRow >= last){ this.refresh(); }else{ if(!isUpdate){ this.fireEvent(‘beforerowsinserted‘, this, firstRow, lastRow); } var html = this.renderRows(firstRow, lastRow), before = this.getRow(firstRow); if(before){ if(firstRow === 0){ this.removeRowClass(0, this.firstRowCls); } Ext.DomHelper.insertHtml(‘beforeBegin‘, before, html[0]); before = this.getLockedRow(firstRow); Ext.DomHelper.insertHtml(‘beforeBegin‘, before, html[1]); }else{ this.removeRowClass(last - 1, this.lastRowCls); Ext.DomHelper.insertHtml(‘beforeEnd‘, this.mainBody.dom, html[0]); Ext.DomHelper.insertHtml(‘beforeEnd‘, this.lockedBody.dom, html[1]); } if(!isUpdate){ this.fireEvent(‘rowsinserted‘, this, firstRow, lastRow); this.processRows(firstRow); }else if(firstRow === 0 || firstRow >= last){ this.addRowClass(firstRow, firstRow === 0 ? this.firstRowCls : this.lastRowCls); } } this.syncFocusEl(firstRow); }, getColumnStyle : function(col, isHeader){ var style = !isHeader ? this.cm.config[col].cellStyle || this.cm.config[col].css || ‘‘ : this.cm.config[col].headerStyle || ‘‘; style += ‘width:‘+this.getColumnWidth(col)+‘;‘; if(this.cm.isHidden(col)){ style += ‘display:none;‘; } var align = this.cm.config[col].align; if(align){ style += ‘text-align:‘+align+‘;‘; } return style; }, getLockedWidth : function() { return (this.cm.getTotalLockedWidth()+1) + ‘px‘; }, getTotalWidth : function() { return (this.cm.getTotalWidth() - this.cm.getTotalLockedWidth()) + ‘px‘; }, getColumnData : function(){ var cs = [], cm = this.cm, colCount = cm.getColumnCount(); for(var i = 0; i < colCount; i++){ var name = cm.getDataIndex(i); cs[i] = { name : (!Ext.isDefined(name) ? this.ds.fields.get(i).name : name), renderer : cm.getRenderer(i), scope : cm.getRendererScope(i), id : cm.getColumnId(i), style : this.getColumnStyle(i), locked : cm.isLocked(i) }; } return cs; }, renderBody : function(){ var markup = this.renderRows() || [‘ ‘, ‘ ‘]; return [this.templates.body.apply({rows: markup[0]}), this.templates.body.apply({rows: markup[1]})]; }, refreshRow: function(record){ var store = this.ds, colCount = this.cm.getColumnCount(), columns = this.getColumnData(), last = colCount - 1, cls = [‘x-grid3-row‘], rowParams = { tstyle: String.format("width: {0};", this.getTotalWidth()) }, lockedRowParams = { tstyle: String.format("width: {0};", this.getLockedWidth()) }, colBuffer = [], lockedColBuffer = [], cellTpl = this.templates.cell, rowIndex, row, lockedRow, column, meta, css, i; if (Ext.isNumber(record)) { rowIndex = record; record = store.getAt(rowIndex); } else { rowIndex = store.indexOf(record); } if (!record || rowIndex < 0) { return; } for (i = 0; i < colCount; i++) { column = columns[i]; if (i == 0) { css = ‘x-grid3-cell-first‘; } else { css = (i == last) ? ‘x-grid3-cell-last ‘ : ‘‘; } meta = { id: column.id, style: column.style, css: css, attr: "", cellAttr: "" }; if(column.scope && column.scope.beforeRenderer){ column.scope.beforeRenderer.call(column.scope, record.data[column.name], meta, record, rowIndex, i, store); } meta.value = column.renderer.call(column.scope, record.data[column.name], meta, record, rowIndex, i, store); if (Ext.isEmpty(meta.value)) { meta.value = ‘ ‘; } if (this.markDirty && record.dirty && typeof record.modified[column.name] != ‘undefined‘) { meta.css += ‘ x-grid3-dirty-cell‘; } if (column.locked) { lockedColBuffer[i] = cellTpl.apply(meta); } else { colBuffer[i] = cellTpl.apply(meta); } } row = this.getRow(rowIndex); row.className = ‘‘; lockedRow = this.getLockedRow(rowIndex); lockedRow.className = ‘‘; if (this.grid.stripeRows && ((rowIndex + 1) % 2 === 0)) { cls.push(‘x-grid3-row-alt‘); } if (this.getRowClass) { rowParams.cols = colCount; cls.push(this.getRowClass(record, rowIndex, rowParams, store)); } // Unlocked rows this.fly(row).addClass(cls).setStyle(rowParams.tstyle); rowParams.cells = colBuffer.join(""); row.innerHTML = this.templates.rowInner.apply(rowParams); // Locked rows this.fly(lockedRow).addClass(cls).setStyle(lockedRowParams.tstyle); lockedRowParams.cells = lockedColBuffer.join(""); lockedRow.innerHTML = this.templates.rowInner.apply(lockedRowParams); lockedRow.rowIndex = rowIndex; this.syncRowHeights(row, lockedRow); this.fireEvent(‘rowupdated‘, this, rowIndex, record); }, refresh : function(headersToo){ this.fireEvent(‘beforerefresh‘, this); this.grid.stopEditing(true); var result = this.renderBody(); this.mainBody.update(result[0]).setWidth(this.getTotalWidth()); this.lockedBody.update(result[1]).setWidth(this.getLockedWidth()); if(headersToo === true){ this.updateHeaders(); this.updateHeaderSortState(); } this.processRows(0, true); this.layout(); this.applyEmptyText(); this.fireEvent(‘refresh‘, this); }, onDenyColumnLock : function(){ }, initData : function(ds, cm){ if(this.cm){ this.cm.un(‘columnlockchange‘, this.onColumnLock, this); } Ext.ux.grid.LockingHeaderGroupView.superclass.initData.call(this, ds, cm); if(this.cm){ this.cm.on(‘columnlockchange‘, this.onColumnLock, this); } }, onColumnLock : function(){ this.refresh(true); }, handleHdMenuClick : function(item){ var index = this.hdCtxIndex, cm = this.cm, id = item.getItemId(), llen = cm.getLockedCount(); switch(id){ case ‘lock‘: if(cm.getColumnCount(true) <= llen + 1){ this.onDenyColumnLock(); return undefined; } cm.setLocked(index, true); if(llen != index){ cm.moveColumn(index, llen); this.grid.fireEvent(‘columnmove‘, index, llen); } break; case ‘unlock‘: if(llen - 1 != index){ cm.setLocked(index, false, true); cm.moveColumn(index, llen - 1); this.grid.fireEvent(‘columnmove‘, index, llen - 1); }else{ cm.setLocked(index, false); } break; default: return Ext.ux.grid.LockingHeaderGroupView.superclass.handleHdMenuClick.call(this, item); } return true; }, handleHdDown : function(e, t){ Ext.ux.grid.LockingHeaderGroupView.superclass.handleHdDown.call(this, e, t); if(this.grid.enableColLock !== false){ if(Ext.fly(t).hasClass(‘x-grid3-hd-btn‘)){ var hd = this.findHeaderCell(t), index = this.getCellIndex(hd), ms = this.hmenu.items, cm = this.cm; ms.get(‘lock‘).setDisabled(cm.isLocked(index)); ms.get(‘unlock‘).setDisabled(!cm.isLocked(index)); } } }, syncHeaderHeight: function(){ var hrow = Ext.fly(this.innerHd).child(‘tr‘, true), lhrow = Ext.fly(this.lockedInnerHd).child(‘tr‘, true); if(!hrow || !lhrow){ return; } hrow.style.height = ‘auto‘; lhrow.style.height = ‘auto‘; var hd = hrow.offsetHeight, lhd = lhrow.offsetHeight, height = Math.max(lhd, hd) + ‘px‘; hrow.style.height = height; lhrow.style.height = height; }, updateLockedWidth: function(){ var lw = this.cm.getTotalLockedWidth(), tw = this.cm.getTotalWidth() - lw, csize = this.grid.getGridEl().getSize(true), lp = Ext.isBorderBox ? 0 : this.lockedBorderWidth, rp = Ext.isBorderBox ? 0 : this.rowBorderWidth, vw = (csize.width - lw - lp - rp) + ‘px‘, so = this.getScrollOffset(); if(!this.grid.autoHeight){ //多页签时，隐藏的页签高度不能为0，否则会导致表体不见 if(csize.height - this.mainHd.getHeight()==0){ var vh = (this.grid.getGridEl().dom.style.height - this.mainHd.getHeight()) + ‘px‘; this.lockedScroller.dom.style.height = vh; this.scroller.dom.style.height = vh; }else{ var vh = (csize.height - this.mainHd.getHeight()) + ‘px‘; this.lockedScroller.dom.style.height = vh; this.scroller.dom.style.height = vh; } } this.lockedWrap.dom.style.width = (lw + rp) + ‘px‘; this.scroller.dom.style.width = vw; this.mainWrap.dom.style.left = (lw + lp + rp) + ‘px‘; if(this.innerHd){ this.lockedInnerHd.firstChild.style.width = lw + ‘px‘; this.lockedInnerHd.firstChild.firstChild.style.width = lw + ‘px‘; this.innerHd.style.width = vw; this.innerHd.firstChild.style.width = (tw + rp + so) + ‘px‘; this.innerHd.firstChild.firstChild.style.width = tw + ‘px‘; } if(this.mainBody){ this.lockedBody.dom.style.width = (lw + rp) + ‘px‘; this.mainBody.dom.style.width = (tw + rp) + ‘px‘; } }});Ext.ux.grid.LockingColumnModel = Ext.extend(Ext.grid.ColumnModel, { /** * Returns true if the given column index is currently locked * @param {Number} colIndex The column index * @return {Boolean} True if the column is locked */ isLocked : function(colIndex){ return this.config[colIndex].locked === true; }, /** * Locks or unlocks a given column * @param {Number} colIndex The column index * @param {Boolean} value True to lock, false to unlock * @param {Boolean} suppressEvent Pass false to cause the columnlockchange event not to fire */ setLocked : function(colIndex, value, suppressEvent){ if (this.isLocked(colIndex) == value) { return; } this.config[colIndex].locked = value; if (!suppressEvent) { this.fireEvent(‘columnlockchange‘, this, colIndex, value); } }, /** * Returns the total width of all locked columns * @return {Number} The width of all locked columns */ getTotalLockedWidth : function(){ var totalWidth = 0; for (var i = 0, len = this.config.length; i < len; i++) { if (this.isLocked(i) && !this.isHidden(i)) { totalWidth += this.getColumnWidth(i); } } return totalWidth; }, /** * Returns the total number of locked columns * @return {Number} The number of locked columns */ getLockedCount : function() { var len = this.config.length; for (var i = 0; i < len; i++) { if (!this.isLocked(i)) { return i; } } //if we get to this point all of the columns are locked so we return the total return len; }, /** * Moves a column from one position to another * @param {Number} oldIndex The current column index * @param {Number} newIndex The destination column index */ moveColumn : function(oldIndex, newIndex){ var oldLocked = this.isLocked(oldIndex), newLocked = this.isLocked(newIndex); if (oldIndex < newIndex && oldLocked && !newLocked) { this.setLocked(oldIndex, false, true); } else if (oldIndex > newIndex && !oldLocked && newLocked) { this.setLocked(oldIndex, true, true); } Ext.ux.grid.LockingColumnModel.superclass.moveColumn.apply(this, arguments); }});
Ext3.x版本锁定列和多表头的插件
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。