sortabletable.js

struts hibernet spring

						var val=dojo.html.renderedTextContent(cells[j]); //	should be the same index as the column.
						if(type == String){
							o[field]=val;
						} else {
							if (val!=null){
								o[field]=new type(val);
							} else {
								o[field]=new type();	//	let it use the default.
							}
						}
					}
				}
				if(dojo.html.hasAttribute(rows[i],"value")&&!o[this.valueField]){
					o[this.valueField]=dojo.html.getAttribute(rows[i],"value");
				}
				//	FIXME: add code to preserve row attributes in __metadata__ field?
				this.data.push(o);
				
				//	add it to the selections if selected="true" is present.
				if(dojo.html.getAttribute(rows[i],"selected")=="true"){
					this.selected.push(o);
				}
			}
		},
		
		showSelections:function(){
			var body=this.domNode.getElementsByTagName("tbody")[0];
			var rows=body.getElementsByTagName("tr");
			var idx=0;
			for(var i=0; i<rows.length; i++){
				if(rows[i].parentNode==body){
					if(dojo.html.getAttribute(rows[i],"selected")=="true"){
						rows[i].className=this.rowSelectedClass;
					} else {
						if(this.enableAlternateRows&&idx%2==1){
							rows[i].className=this.rowAlternateClass;
						}else{
							rows[i].className="";
						}
					}
					idx++;
				}
			}
		},
		render:function(bDontPreserve){
			//	summary
			//	renders the table to the browser
			var data=[];
			var body=this.domNode.getElementsByTagName("tbody")[0];

			if(!bDontPreserve){
				//	rebuild data and selection
				this.parseDataFromTable(body);
			}

			//	clone this.data for sorting purposes.
			for(var i=0; i<this.data.length; i++){
				data.push(this.data[i]);
			}
			
			var col=this.columns[this.sortIndex];
			if(!col.noSort){
				var field=col.getField();
				if(col.sortFunction){
					var sort=col.sortFunction;
				}else{
					var sort=function(a,b){
						if (a[field]>b[field]) return 1;
						if (a[field]<b[field]) return -1;
						return 0;
					}
				}
				data.sort(sort);
				if(this.sortDirection!=0) data.reverse();
			}

			//	build the table and pop it in.
			while(body.childNodes.length>0) body.removeChild(body.childNodes[0]);
			for(var i=0; i<data.length;i++){
				var row=document.createElement("tr");
				dojo.html.disableSelection(row);
				if (data[i][this.valueField]){
					row.setAttribute("value",data[i][this.valueField]);
				}
				if(this.isSelected(data[i])){
					row.className=this.rowSelectedClass;
					row.setAttribute("selected","true");
				} else {
					if(this.enableAlternateRows&&i%2==1){
						row.className=this.rowAlternateClass;
					}
				}
				for(var j=0;j<this.columns.length;j++){
					var cell=document.createElement("td");
					cell.setAttribute("align", this.columns[j].align);
					cell.setAttribute("valign", this.columns[j].valign);
					dojo.html.disableSelection(cell);
					if(this.sortIndex==j){
						cell.className=this.columnSelected;
					}
					if(this.columns[j].sortType=="__markup__"){
						cell.innerHTML=data[i][this.columns[j].getField()];
						for(var k=0; k<cell.childNodes.length; k++){
							var node=cell.childNodes[k];
							if(node&&node.nodeType==dojo.html.ELEMENT_NODE){
								dojo.html.disableSelection(node);
							}
						}
					}else{
						if(this.columns[j].getType()==Date){
							var format=this.defaultDateFormat;
							if(this.columns[j].format) format=this.columns[j].format;
							cell.appendChild(document.createTextNode(dojo.date.strftime(data[i][this.columns[j].getField()], format)));
						}else{
							cell.appendChild(document.createTextNode(data[i][this.columns[j].getField()]));
						}
					}
					row.appendChild(cell);
				}
				body.appendChild(row);
				dojo.event.connect(row, "onclick", this, "onUISelect");
			}
			
			//	if minRows exist.
			var minRows=parseInt(this.minRows);
			if (!isNaN(minRows) && minRows>0 && data.length<minRows){
				var mod=0;
				if(data.length%2==0) mod=1;
				var nRows=minRows-data.length;
				for(var i=0; i<nRows; i++){
					var row=document.createElement("tr");
					row.setAttribute("ignoreIfParsed","true");
					if(this.enableAlternateRows&&i%2==mod){
						row.className=this.rowAlternateClass;
					}
					for(var j=0;j<this.columns.length;j++){
						var cell=document.createElement("td");
						cell.appendChild(document.createTextNode("\u00A0"));
						row.appendChild(cell);
					}
					body.appendChild(row);
				}
			}
		},

		//	the following the user can override.
		onSelect:function(/* DomEvent */ e){ 
			//	summary
			//	empty function for the user to attach code to, fired by onUISelect
		},
		onUISelect:function(/* DomEvent */ e){
			//	summary
			//	fired when a user selects a row
			var row=dojo.html.getParentByType(e.target,"tr");
			var body=dojo.html.getParentByType(row,"tbody");
			if(this.enableMultipleSelect){
				if(e.metaKey||e.ctrlKey){
					if(this.isSelected(this.getObjectFromRow(row))){
						this.removeFromSelected(this.getObjectFromRow(row));
						row.removeAttribute("selected");
					}else{
						//	push onto the selection stack.
						this.setSelectionByRow(row);
						row.setAttribute("selected","true");
					}
				}else if(e.shiftKey){
					//	the tricky one.  We need to figure out the *last* selected row above, 
					//	and select all the rows in between.
					var startRow;
					var rows=body.getElementsByTagName("tr");
					//	if there's a selection above, we go with that first. 
					for(var i=0;i<rows.length;i++){
						if(rows[i].parentNode==body){
							if(rows[i]==row) break;
							if(dojo.html.getAttribute(rows[i],"selected")=="true"){
								startRow=rows[i];
							}
						}
					}
					//	if there isn't a selection above, we continue with a selection below.
					if(!startRow){
						startRow=row;
						for(;i<rows.length;i++){
							if(dojo.html.getAttribute(rows[i],"selected")=="true"){
								row=rows[i];
								break;
							}
						}
					}
					this.resetSelections(body);
					if(startRow==row){
						//	this is the only selection
						row.setAttribute("selected","true");
						this.setSelectionByRow(row);
					}else{
						var doSelect=false;
						for(var i=0; i<rows.length; i++){
							if(rows[i].parentNode==body){
								rows[i].removeAttribute("selected");
								if(rows[i]==startRow){
									doSelect=true;
								}
								if(doSelect){
									this.setSelectionByRow(rows[i]);
									rows[i].setAttribute("selected","true");
								}
								if(rows[i]==row){
									doSelect=false;
								}
							}
						}
					}
				}else{
					//	reset the selection
					this.resetSelections(body);
					row.setAttribute("selected","true");
					this.setSelectionByRow(row);
				}
			}else{
				//	reset the data selection and go.
				this.resetSelections(body);
				row.setAttribute("selected","true");
				this.setSelectionByRow(row);
			}
			this.showSelections();
			this.onSelect(e);
			e.stopPropagation();
			e.preventDefault();
		},
		onHeaderClick:function(/* DomEvent */ e){
			//	summary
			//	Main handler function for each header column click.
			var oldIndex=this.sortIndex;
			var oldDirection=this.sortDirection;
			var source=e.target;
			var row=dojo.html.getParentByType(source,"tr");
			var cellTag="td";
			if(row.getElementsByTagName(cellTag).length==0) cellTag="th";

			var headers=row.getElementsByTagName(cellTag);
			var header=dojo.html.getParentByType(source,cellTag);
			
			for(var i=0; i<headers.length; i++){
				if(headers[i]==header){
					if(i!=oldIndex){
						//	new col.
						this.sortIndex=i;
						this.sortDirection=0;
						headers[i].className=this.headerSortDownClass
					}else{
						this.sortDirection=(oldDirection==0)?1:0;
						if(this.sortDirection==0){
							headers[i].className=this.headerSortDownClass;
						}else{
							headers[i].className=this.headerSortUpClass;
						}
					}
				}else{
					//	reset the header class.
					headers[i].className=this.headerClass;
				}
			}
			this.render();
		},

		postCreate:function(){ 
			// 	summary
			//	overridden from HtmlWidget, initializes and renders the widget.
			var thead=this.domNode.getElementsByTagName("thead")[0];
			if(this.headClass.length>0){
				thead.className=this.headClass;
			}

			//	disable selections
			dojo.html.disableSelection(this.domNode);

			//	parse the columns.
			this.parseColumns(thead);

			//	attach header handlers.
			var header="td";
			if(thead.getElementsByTagName(header).length==0) header="th";
			var headers=thead.getElementsByTagName(header);
			for(var i=0; i<headers.length; i++){
				if(!this.columns[i].noSort){
					dojo.event.connect(headers[i], "onclick", this, "onHeaderClick");
				}
				if(this.sortIndex==i){
					if(this.sortDirection==0){
						headers[i].className=this.headerSortDownClass;
					}else{
						headers[i].className=this.headerSortUpClass;
					}
				}
			}

			//	parse the tbody element and re-render it.
			var tbody=this.domNode.getElementsByTagName("tbody")[0];
			if (this.tbodyClass.length>0) {
				tbody.className=this.tbodyClass;
			}

			this.parseDataFromTable(tbody);
			this.render(true);
		}
	}
);