/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.empire.struts2.jsp.tags;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import org.apache.empire.commons.StringUtils;
import org.apache.empire.data.ColumnExpr;
import org.apache.empire.struts2.action.ListSortingInfo;
import org.apache.empire.struts2.html.HtmlTagDictionary;
import org.apache.empire.struts2.html.HtmlWriter;
import org.apache.empire.struts2.html.HtmlWriter.HtmlTag;
import org.apache.struts2.components.Component;
import com.opensymphony.xwork2.util.ValueStack;
@SuppressWarnings("serial")
public class TableHeadRowTag extends EmpireTagSupport
{
public static final String HEADROWINFO_ATTRIBUTE = "tableHeadRowInfo";
public static class HeadRowInfo
{
public String currentColumnName;
public boolean sortOrderChangeable;
public boolean sortDescending;
public String sortAction;
public String sortColumnParam;
public String sortOrderParam;
public String currentClass;
// Overridable column defaults
public String columnClass;
public String columnStyle;
public String columnAlign;
public String columnWrap;
}
// Item Information
protected ListSortingInfo sortingInfo;
protected ColumnExpr currentColumn;
protected Object sortOrder; // null=none, 0=ascending, 1=descending
protected String sortAction;
protected String sortColumnParam;
protected String sortOrderParam;
protected String currentClass;
// Overrideable column defaults
protected String columnClass;
protected String columnStyle;
protected String columnAlign;
protected String columnWrap;
// Temporary Information
private Object oldHeadRowInfo;
/*
* Clears all params since tag is reused
*/
@Override
protected void resetParams()
{
// Item Information
sortingInfo = null;
currentColumn = null;
sortOrder = null;
sortAction = null;
currentClass = null;
columnClass = null;
columnStyle = null;
columnAlign = null;
columnWrap = null;
sortColumnParam = null;
sortOrderParam = null;
// reset
super.resetParams();
}
@Override
public Component getBean(ValueStack arg0, HttpServletRequest arg1, HttpServletResponse arg2)
{
return null;
}
@Override
protected void populateParams()
{
log.error("Illegal Method call");
}
@Override
public int doStartTag() throws JspException
{
// Tabel cell tag
HtmlTagDictionary dic = HtmlTagDictionary.getInstance();
HtmlWriter w = new HtmlWriter(pageContext.getOut());
HtmlTag thr = w.startTag(dic.TableHeadRowTag());
addStandardAttributes(thr, null);
thr.beginBody(true);
// Set current Column
HeadRowInfo hri = new HeadRowInfo();
// Is sorting Info supplied
if (sortingInfo!=null)
{ // Set from sorting Info
hri.currentColumnName = sortingInfo.getSortColumn();
hri.sortOrderChangeable = true;
hri.sortDescending = sortingInfo.isSortDescending();
hri.sortColumnParam = getSortParamName(sortingInfo, "sortColumn");
hri.sortOrderParam = getSortParamName(sortingInfo, "sortDesc");
}
else
{ // Set Manually
hri.currentColumnName = ((currentColumn!=null) ? currentColumn.getName() : null);
hri.sortOrderChangeable = (sortOrder!=null);
hri.sortDescending = getBoolean(sortOrder, false);
hri.sortColumnParam = sortColumnParam;
hri.sortOrderParam = sortOrderParam;
}
hri.sortAction = sortAction;
hri.columnClass = columnClass;
hri.currentClass = currentClass;
hri.columnAlign = columnAlign;
hri.columnStyle = columnStyle;
hri.columnWrap = columnWrap;
oldHeadRowInfo = putPageAttribute(HEADROWINFO_ATTRIBUTE, hri);
// return usesBody ? EVAL_BODY_BUFFERED : EVAL_BODY_INCLUDE;
return EVAL_BODY_INCLUDE;
}
@Override
public int doEndTag() throws JspException
{
// Set current Column
removePageAttribute(HEADROWINFO_ATTRIBUTE, oldHeadRowInfo);
oldHeadRowInfo = null;
// Write End Tag
HtmlTagDictionary dic = HtmlTagDictionary.getInstance();
HtmlWriter w = new HtmlWriter(pageContext.getOut());
HtmlTag thr = w.continueTag (dic.TableHeadRowTag(), true);
thr.endTag();
// done
resetParams();
return EVAL_PAGE;
}
// ------- helpers -------
private String getSortParamName(ListSortingInfo sortInfo, String sortProperty)
{
String listProperty = sortInfo.getListPropertyName();
if (StringUtils.isEmpty(listProperty))
return sortProperty;
return listProperty + "." + sortProperty;
}
// -------------------------------- Property accessors -----------------------------
public void setCurrentClass(String currentClass)
{
this.currentClass = currentClass;
}
public void setCurrentColumn(ColumnExpr currentColumn)
{
this.currentColumn = currentColumn;
}
public void setSortAction(String sortAction)
{
this.sortAction = sortAction;
}
public void setSortOrder(Object sortOrder)
{
this.sortOrder = sortOrder;
}
public void setSortColumnParam(String sortColumnParam)
{
this.sortColumnParam = sortColumnParam;
}
public void setSortOrderParam(String sortOrderParam)
{
this.sortOrderParam = sortOrderParam;
}
public void setColumnClass(String columnClass)
{
this.columnClass = columnClass;
}
public void setColumnStyle(String columnStyle)
{
this.columnStyle = columnStyle;
}
public void setColumnAlign(String columnAlign)
{
this.columnAlign = columnAlign;
}
public void setColumnWrap(String columnWrap)
{
this.columnWrap = columnWrap;
}
public void setSortingInfo(ListSortingInfo sortingInfo)
{
this.sortingInfo = sortingInfo;
}
}