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ColumnHeaderGroup.js
资源名称：ext-3.1.0.zip　[点击查看]
上传用户：dawnssy
上传日期：2022-08-06
资源大小：9345k
文件大小：21k
源码类别：

JavaScript

开发平台：

JavaScript

ColumnHeaderGroup.js：源码内容
  1. /*!  * Ext JS Library 3.1.0  * Copyright(c) 2006-2009 Ext JS, LLC  * licensing@extjs.com  * http://www.extjs.com/license  */ Ext.ns('Ext.ux.grid');
  3. if(Ext.isWebKit){
  4.     Ext.grid.GridView.prototype.borderWidth = 0;
  5. }
  7. Ext.ux.grid.ColumnHeaderGroup = Ext.extend(Ext.util.Observable, {
  9.     constructor: function(config){
  10.         this.config = config;
  11.     },
  13.     init: function(grid){
  14.         Ext.applyIf(grid.colModel, this.config);
  15.         Ext.apply(grid.getView(), this.viewConfig);
  16.     },
  18.     viewConfig: {
  19.         initTemplates: function(){
  20.             this.constructor.prototype.initTemplates.apply(this, arguments);
  21.             var ts = this.templates || {};
  22.             if(!ts.gcell){
  23.                 ts.gcell = new Ext.XTemplate('<td class="x-grid3-hd x-grid3-gcell x-grid3-td-{id} ux-grid-hd-group-row-{row} {cls}" style="{style}">', '<div {tooltip} class="x-grid3-hd-inner x-grid3-hd-{id}" unselectable="on" style="{istyle}">', this.grid.enableHdMenu ? '<a class="x-grid3-hd-btn" href="#"></a>' : '', '{value}</div></td>');
  24.             }
  25.             this.templates = ts;
  26.             this.hrowRe = new RegExp("ux-grid-hd-group-row-(\d+)", "");
  27.         },
  29.         renderHeaders: function(){
  30.             var ts = this.templates, headers = [], cm = this.cm, rows = cm.rows, tstyle = 'width:' + this.getTotalWidth() + ';';
  32.             for(var row = 0, rlen = rows.length; row < rlen; row++){
  33.                 var r = rows[row], cells = [];
  34.                 for(var i = 0, gcol = 0, len = r.length; i < len; i++){
  35.                     var group = r[i];
  36.                     group.colspan = group.colspan || 1;
  37.                     var id = this.getColumnId(group.dataIndex ? cm.findColumnIndex(group.dataIndex) : gcol), gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol);
  38.                     cells[i] = ts.gcell.apply({
  39.                         cls: 'ux-grid-hd-group-cell',
  40.                         id: id,
  41.                         row: row,
  42.                         style: 'width:' + gs.width + ';' + (gs.hidden ? 'display:none;' : '') + (group.align ? 'text-align:' + group.align + ';' : ''),
  43.                         tooltip: group.tooltip ? (Ext.QuickTips.isEnabled() ? 'ext:qtip' : 'title') + '="' + group.tooltip + '"' : '',
  44.                         istyle: group.align == 'right' ? 'padding-right:16px' : '',
  45.                         btn: this.grid.enableHdMenu && group.header,
  46.                         value: group.header || '&nbsp;'
  47.                     });
  48.                     gcol += group.colspan;
  49.                 }
  50.                 headers[row] = ts.header.apply({
  51.                     tstyle: tstyle,
  52.                     cells: cells.join('')
  53.                 });
  54.             }
  55.             headers.push(this.constructor.prototype.renderHeaders.apply(this, arguments));
  56.             return headers.join('');
  57.         },
  59.         onColumnWidthUpdated: function(){
  60.             this.constructor.prototype.onColumnWidthUpdated.apply(this, arguments);
  61.             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);
  62.         },
  64.         onAllColumnWidthsUpdated: function(){
  65.             this.constructor.prototype.onAllColumnWidthsUpdated.apply(this, arguments);
  66.             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);
  67.         },
  69.         onColumnHiddenUpdated: function(){
  70.             this.constructor.prototype.onColumnHiddenUpdated.apply(this, arguments);
  71.             Ext.ux.grid.ColumnHeaderGroup.prototype.updateGroupStyles.call(this);
  72.         },
  74.         getHeaderCell: function(index){
  75.             return this.mainHd.query(this.cellSelector)[index];
  76.         },
  78.         findHeaderCell: function(el){
  79.             return el ? this.fly(el).findParent('td.x-grid3-hd', this.cellSelectorDepth) : false;
  80.         },
  82.         findHeaderIndex: function(el){
  83.             var cell = this.findHeaderCell(el);
  84.             return cell ? this.getCellIndex(cell) : false;
  85.         },
  87.         updateSortIcon: function(col, dir){
  88.             var sc = this.sortClasses, hds = this.mainHd.select(this.cellSelector).removeClass(sc);
  89.             hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);
  90.         },
  92.         handleHdDown: function(e, t){
  93.             var el = Ext.get(t);
  94.             if(el.hasClass('x-grid3-hd-btn')){
  95.                 e.stopEvent();
  96.                 var hd = this.findHeaderCell(t);
  97.                 Ext.fly(hd).addClass('x-grid3-hd-menu-open');
  98.                 var index = this.getCellIndex(hd);
  99.                 this.hdCtxIndex = index;
  100.                 var ms = this.hmenu.items, cm = this.cm;
  101.                 ms.get('asc').setDisabled(!cm.isSortable(index));
  102.                 ms.get('desc').setDisabled(!cm.isSortable(index));
  103.                 this.hmenu.on('hide', function(){
  104.                     Ext.fly(hd).removeClass('x-grid3-hd-menu-open');
  105.                 }, this, {
  106.                     single: true
  107.                 });
  108.                 this.hmenu.show(t, 'tl-bl?');
  109.             }else if(el.hasClass('ux-grid-hd-group-cell') || Ext.fly(t).up('.ux-grid-hd-group-cell')){
  110.                 e.stopEvent();
  111.             }
  112.         },
  114.         handleHdMove: function(e, t){
  115.             var hd = this.findHeaderCell(this.activeHdRef);
  116.             if(hd && !this.headersDisabled && !Ext.fly(hd).hasClass('ux-grid-hd-group-cell')){
  117.                 var hw = this.splitHandleWidth || 5, r = this.activeHdRegion, x = e.getPageX(), ss = hd.style, cur = '';
  118.                 if(this.grid.enableColumnResize !== false){
  119.                     if(x - r.left <= hw && this.cm.isResizable(this.activeHdIndex - 1)){
  120.                         cur = Ext.isAir ? 'move' : Ext.isWebKit ? 'e-resize' : 'col-resize'; // col-resize
  121.                                                                                                 // not
  122.                                                                                                 // always
  123.                                                                                                 // supported
  124.                     }else if(r.right - x <= (!this.activeHdBtn ? hw : 2) && this.cm.isResizable(this.activeHdIndex)){
  125.                         cur = Ext.isAir ? 'move' : Ext.isWebKit ? 'w-resize' : 'col-resize';
  126.                     }
  127.                 }
  128.                 ss.cursor = cur;
  129.             }
  130.         },
  132.         handleHdOver: function(e, t){
  133.             var hd = this.findHeaderCell(t);
  134.             if(hd && !this.headersDisabled){
  135.                 this.activeHdRef = t;
  136.                 this.activeHdIndex = this.getCellIndex(hd);
  137.                 var fly = this.fly(hd);
  138.                 this.activeHdRegion = fly.getRegion();
  139.                 if(!(this.cm.isMenuDisabled(this.activeHdIndex) || fly.hasClass('ux-grid-hd-group-cell'))){
  140.                     fly.addClass('x-grid3-hd-over');
  141.                     this.activeHdBtn = fly.child('.x-grid3-hd-btn');
  142.                     if(this.activeHdBtn){
  143.                         this.activeHdBtn.dom.style.height = (hd.firstChild.offsetHeight - 1) + 'px';
  144.                     }
  145.                 }
  146.             }
  147.         },
  149.         handleHdOut: function(e, t){
  150.             var hd = this.findHeaderCell(t);
  151.             if(hd && (!Ext.isIE || !e.within(hd, true))){
  152.                 this.activeHdRef = null;
  153.                 this.fly(hd).removeClass('x-grid3-hd-over');
  154.                 hd.style.cursor = '';
  155.             }
  156.         },
  158.         handleHdMenuClick: function(item){
  159.             var index = this.hdCtxIndex, cm = this.cm, ds = this.ds, id = item.getItemId();
  160.             switch(id){
  161.                 case 'asc':
  162.                     ds.sort(cm.getDataIndex(index), 'ASC');
  163.                     break;
  164.                 case 'desc':
  165.                     ds.sort(cm.getDataIndex(index), 'DESC');
  166.                     break;
  167.                 default:
  168.                     if(id.substr(0, 5) == 'group'){
  169.                         var i = id.split('-'), row = parseInt(i[1], 10), col = parseInt(i[2], 10), r = this.cm.rows[row], group, gcol = 0;
  170.                         for(var i = 0, len = r.length; i < len; i++){
  171.                             group = r[i];
  172.                             if(col >= gcol && col < gcol + group.colspan){
  173.                                 break;
  174.                             }
  175.                             gcol += group.colspan;
  176.                         }
  177.                         if(item.checked){
  178.                             var max = cm.getColumnsBy(this.isHideableColumn, this).length;
  179.                             for(var i = gcol, len = gcol + group.colspan; i < len; i++){
  180.                                 if(!cm.isHidden(i)){
  181.                                     max--;
  182.                                 }
  183.                             }
  184.                             if(max < 1){
  185.                                 this.onDenyColumnHide();
  186.                                 return false;
  187.                             }
  188.                         }
  189.                         for(var i = gcol, len = gcol + group.colspan; i < len; i++){
  190.                             if(cm.config[i].fixed !== true && cm.config[i].hideable !== false){
  191.                                 cm.setHidden(i, item.checked);
  192.                             }
  193.                         }
  194.                     }else{
  195.                         index = cm.getIndexById(id.substr(4));
  196.                         if(index != -1){
  197.                             if(item.checked && cm.getColumnsBy(this.isHideableColumn, this).length <= 1){
  198.                                 this.onDenyColumnHide();
  199.                                 return false;
  200.                             }
  201.                             cm.setHidden(index, item.checked);
  202.                         }
  203.                     }
  204.                     item.checked = !item.checked;
  205.                     if(item.menu){
  206.                         var updateChildren = function(menu){
  207.                             menu.items.each(function(childItem){
  208.                                 if(!childItem.disabled){
  209.                                     childItem.setChecked(item.checked, false);
  210.                                     if(childItem.menu){
  211.                                         updateChildren(childItem.menu);
  212.                                     }
  213.                                 }
  214.                             });
  215.                         }
  216.                         updateChildren(item.menu);
  217.                     }
  218.                     var parentMenu = item, parentItem;
  219.                     while(parentMenu = parentMenu.parentMenu){
  220.                         if(!parentMenu.parentMenu || !(parentItem = parentMenu.parentMenu.items.get(parentMenu.getItemId())) || !parentItem.setChecked){
  221.                             break;
  222.                         }
  223.                         var checked = parentMenu.items.findIndexBy(function(m){
  224.                             return m.checked;
  225.                         }) >= 0;
  226.                         parentItem.setChecked(checked, true);
  227.                     }
  228.                     item.checked = !item.checked;
  229.             }
  230.             return true;
  231.         },
  233.         beforeColMenuShow: function(){
  234.             var cm = this.cm, rows = this.cm.rows;
  235.             this.colMenu.removeAll();
  236.             for(var col = 0, clen = cm.getColumnCount(); col < clen; col++){
  237.                 var menu = this.colMenu, title = cm.getColumnHeader(col), text = [];
  238.                 if(cm.config[col].fixed !== true && cm.config[col].hideable !== false){
  239.                     for(var row = 0, rlen = rows.length; row < rlen; row++){
  240.                         var r = rows[row], group, gcol = 0;
  241.                         for(var i = 0, len = r.length; i < len; i++){
  242.                             group = r[i];
  243.                             if(col >= gcol && col < gcol + group.colspan){
  244.                                 break;
  245.                             }
  246.                             gcol += group.colspan;
  247.                         }
  248.                         if(group && group.header){
  249.                             if(cm.hierarchicalColMenu){
  250.                                 var gid = 'group-' + row + '-' + gcol;
  251.                                 var item = menu.items.item(gid);
  252.                                 var submenu = item ? item.menu : null;
  253.                                 if(!submenu){
  254.                                     submenu = new Ext.menu.Menu({
  255.                                         itemId: gid
  256.                                     });
  257.                                     submenu.on("itemclick", this.handleHdMenuClick, this);
  258.                                     var checked = false, disabled = true;
  259.                                     for(var c = gcol, lc = gcol + group.colspan; c < lc; c++){
  260.                                         if(!cm.isHidden(c)){
  261.                                             checked = true;
  262.                                         }
  263.                                         if(cm.config[c].hideable !== false){
  264.                                             disabled = false;
  265.                                         }
  266.                                     }
  267.                                     menu.add({
  268.                                         itemId: gid,
  269.                                         text: group.header,
  270.                                         menu: submenu,
  271.                                         hideOnClick: false,
  272.                                         checked: checked,
  273.                                         disabled: disabled
  274.                                     });
  275.                                 }
  276.                                 menu = submenu;
  277.                             }else{
  278.                                 text.push(group.header);
  279.                             }
  280.                         }
  281.                     }
  282.                     text.push(title);
  283.                     menu.add(new Ext.menu.CheckItem({
  284.                         itemId: "col-" + cm.getColumnId(col),
  285.                         text: text.join(' '),
  286.                         checked: !cm.isHidden(col),
  287.                         hideOnClick: false,
  288.                         disabled: cm.config[col].hideable === false
  289.                     }));
  290.                 }
  291.             }
  292.         },
  294.         renderUI: function(){
  295.             this.constructor.prototype.renderUI.apply(this, arguments);
  296.             Ext.apply(this.columnDrop, Ext.ux.grid.ColumnHeaderGroup.prototype.columnDropConfig);
  297.             Ext.apply(this.splitZone, Ext.ux.grid.ColumnHeaderGroup.prototype.splitZoneConfig);
  298.         }
  299.     },
  301.     splitZoneConfig: {
  302.         allowHeaderDrag: function(e){
  303.             return !e.getTarget(null, null, true).hasClass('ux-grid-hd-group-cell');
  304.         }
  305.     },
  307.     columnDropConfig: {
  308.         getTargetFromEvent: function(e){
  309.             var t = Ext.lib.Event.getTarget(e);
  310.             return this.view.findHeaderCell(t);
  311.         },
  313.         positionIndicator: function(h, n, e){
  314.             var data = Ext.ux.grid.ColumnHeaderGroup.prototype.getDragDropData.call(this, h, n, e);
  315.             if(data === false){
  316.                 return false;
  317.             }
  318.             var px = data.px + this.proxyOffsets[0];
  319.             this.proxyTop.setLeftTop(px, data.r.top + this.proxyOffsets[1]);
  320.             this.proxyTop.show();
  321.             this.proxyBottom.setLeftTop(px, data.r.bottom);
  322.             this.proxyBottom.show();
  323.             return data.pt;
  324.         },
  326.         onNodeDrop: function(n, dd, e, data){
  327.             var h = data.header;
  328.             if(h != n){
  329.                 var d = Ext.ux.grid.ColumnHeaderGroup.prototype.getDragDropData.call(this, h, n, e);
  330.                 if(d === false){
  331.                     return false;
  332.                 }
  333.                 var cm = this.grid.colModel, right = d.oldIndex < d.newIndex, rows = cm.rows;
  334.                 for(var row = d.row, rlen = rows.length; row < rlen; row++){
  335.                     var r = rows[row], len = r.length, fromIx = 0, span = 1, toIx = len;
  336.                     for(var i = 0, gcol = 0; i < len; i++){
  337.                         var group = r[i];
  338.                         if(d.oldIndex >= gcol && d.oldIndex < gcol + group.colspan){
  339.                             fromIx = i;
  340.                         }
  341.                         if(d.oldIndex + d.colspan - 1 >= gcol && d.oldIndex + d.colspan - 1 < gcol + group.colspan){
  342.                             span = i - fromIx + 1;
  343.                         }
  344.                         if(d.newIndex >= gcol && d.newIndex < gcol + group.colspan){
  345.                             toIx = i;
  346.                         }
  347.                         gcol += group.colspan;
  348.                     }
  349.                     var groups = r.splice(fromIx, span);
  350.                     rows[row] = r.splice(0, toIx - (right ? span : 0)).concat(groups).concat(r);
  351.                 }
  352.                 for(var c = 0; c < d.colspan; c++){
  353.                     var oldIx = d.oldIndex + (right ? 0 : c), newIx = d.newIndex + (right ? -1 : c);
  354.                     cm.moveColumn(oldIx, newIx);
  355.                     this.grid.fireEvent("columnmove", oldIx, newIx);
  356.                 }
  357.                 return true;
  358.             }
  359.             return false;
  360.         }
  361.     },
  363.     getGroupStyle: function(group, gcol){
  364.         var width = 0, hidden = true;
  365.         for(var i = gcol, len = gcol + group.colspan; i < len; i++){
  366.             if(!this.cm.isHidden(i)){
  367.                 var cw = this.cm.getColumnWidth(i);
  368.                 if(typeof cw == 'number'){
  369.                     width += cw;
  370.                 }
  371.                 hidden = false;
  372.             }
  373.         }
  374.         return {
  375.             width: (Ext.isBorderBox ? width : Math.max(width - this.borderWidth, 0)) + 'px',
  376.             hidden: hidden
  377.         };
  378.     },
  380.     updateGroupStyles: function(col){
  381.         var tables = this.mainHd.query('.x-grid3-header-offset > table'), tw = this.getTotalWidth(), rows = this.cm.rows;
  382.         for(var row = 0; row < tables.length; row++){
  383.             tables[row].style.width = tw;
  384.             if(row < rows.length){
  385.                 var cells = tables[row].firstChild.firstChild.childNodes;
  386.                 for(var i = 0, gcol = 0; i < cells.length; i++){
  387.                     var group = rows[row][i];
  388.                     if((typeof col != 'number') || (col >= gcol && col < gcol + group.colspan)){
  389.                         var gs = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupStyle.call(this, group, gcol);
  390.                         cells[i].style.width = gs.width;
  391.                         cells[i].style.display = gs.hidden ? 'none' : '';
  392.                     }
  393.                     gcol += group.colspan;
  394.                 }
  395.             }
  396.         }
  397.     },
  399.     getGroupRowIndex: function(el){
  400.         if(el){
  401.             var m = el.className.match(this.hrowRe);
  402.             if(m && m[1]){
  403.                 return parseInt(m[1], 10);
  404.             }
  405.         }
  406.         return this.cm.rows.length;
  407.     },
  409.     getGroupSpan: function(row, col){
  410.         if(row < 0){
  411.             return {
  412.                 col: 0,
  413.                 colspan: this.cm.getColumnCount()
  414.             };
  415.         }
  416.         var r = this.cm.rows[row];
  417.         if(r){
  418.             for(var i = 0, gcol = 0, len = r.length; i < len; i++){
  419.                 var group = r[i];
  420.                 if(col >= gcol && col < gcol + group.colspan){
  421.                     return {
  422.                         col: gcol,
  423.                         colspan: group.colspan
  424.                     };
  425.                 }
  426.                 gcol += group.colspan;
  427.             }
  428.             return {
  429.                 col: gcol,
  430.                 colspan: 0
  431.             };
  432.         }
  433.         return {
  434.             col: col,
  435.             colspan: 1
  436.         };
  437.     },
  439.     getDragDropData: function(h, n, e){
  440.         if(h.parentNode != n.parentNode){
  441.             return false;
  442.         }
  443.         var cm = this.grid.colModel, x = Ext.lib.Event.getPageX(e), r = Ext.lib.Dom.getRegion(n.firstChild), px, pt;
  444.         if((r.right - x) <= (r.right - r.left) / 2){
  445.             px = r.right + this.view.borderWidth;
  446.             pt = "after";
  447.         }else{
  448.             px = r.left;
  449.             pt = "before";
  450.         }
  451.         var oldIndex = this.view.getCellIndex(h), newIndex = this.view.getCellIndex(n);
  452.         if(cm.isFixed(newIndex)){
  453.             return false;
  454.         }
  455.         var row = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupRowIndex.call(this.view, h), 
  456.             oldGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row, oldIndex), 
  457.             newGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row, newIndex),
  458.             oldIndex = oldGroup.col;
  459.             newIndex = newGroup.col + (pt == "after" ? newGroup.colspan : 0);
  460.         if(newIndex >= oldGroup.col && newIndex <= oldGroup.col + oldGroup.colspan){
  461.             return false;
  462.         }
  463.         var parentGroup = Ext.ux.grid.ColumnHeaderGroup.prototype.getGroupSpan.call(this.view, row - 1, oldIndex);
  464.         if(newIndex < parentGroup.col || newIndex > parentGroup.col + parentGroup.colspan){
  465.             return false;
  466.         }
  467.         return {
  468.             r: r,
  469.             px: px,
  470.             pt: pt,
  471.             row: row,
  472.             oldIndex: oldIndex,
  473.             newIndex: newIndex,
  474.             colspan: oldGroup.colspan
  475.         };
  476.     }
  477. });