| // Copyright 2004, 2005 The Apache Software Foundation |
| // |
| // Licensed 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.tapestry.contrib.table.components.inserted; |
| |
| import org.apache.tapestry.BaseComponent; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.Tapestry; |
| import org.apache.tapestry.contrib.table.components.Table; |
| import org.apache.tapestry.contrib.table.model.ITableColumn; |
| import org.apache.tapestry.contrib.table.model.ITableModelSource; |
| import org.apache.tapestry.contrib.table.model.ITableRendererListener; |
| import org.apache.tapestry.event.PageDetachListener; |
| import org.apache.tapestry.event.PageEvent; |
| import org.apache.tapestry.util.ComponentAddress; |
| |
| /** |
| * A component that renders a sorting link - to be used with contrib:Table when |
| * customizing a column's header. |
| * |
| * |
| * @author andyhot |
| */ |
| public abstract class SimpleTableColumnSortLink extends BaseComponent |
| implements ITableRendererListener, PageDetachListener |
| { |
| // transient |
| private ITableColumn m_objColumn; |
| private ITableModelSource m_objModelSource; |
| |
| public SimpleTableColumnSortLink() |
| { |
| init(); |
| } |
| |
| public abstract Table getTable(); |
| |
| /** |
| * @see org.apache.tapestry.event.PageDetachListener#pageDetached(PageEvent) |
| */ |
| public void pageDetached(PageEvent arg0) |
| { |
| init(); |
| } |
| |
| private void init() |
| { |
| m_objColumn = null; |
| m_objModelSource = null; |
| } |
| |
| public void prepareForRender(IRequestCycle cycle) |
| { |
| if (getTable()==null) |
| throw Tapestry.createRequiredParameterException(this, "table"); |
| m_objModelSource = getTable(); |
| m_objColumn = getTable().getTableColumn(); |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.table.model.ITableRendererListener#initializeRenderer(IRequestCycle, |
| * ITableModelSource, ITableColumn, Object) |
| */ |
| public void initializeRenderer(IRequestCycle objCycle, |
| ITableModelSource objSource, ITableColumn objColumn, Object objRow) |
| { |
| m_objModelSource = objSource; |
| m_objColumn = objColumn; |
| } |
| |
| public Object[] getColumnSelectedParameters() |
| { |
| return new Object[] { new ComponentAddress(m_objModelSource), |
| m_objColumn.getColumnName() }; |
| } |
| |
| public void columnSelected(IRequestCycle objCycle) |
| { |
| Object[] arrArgs = objCycle.getListenerParameters(); |
| ComponentAddress objAddr = (ComponentAddress) arrArgs[0]; |
| String strColumnName = (String) arrArgs[1]; |
| |
| ITableModelSource objSource = (ITableModelSource) objAddr |
| .findComponent(objCycle); |
| objSource.storeTableAction(new TableActionColumnSort(strColumnName)); |
| } |
| |
| } |