001    // Copyright 2007 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.contrib.ajax;
016    
017    import java.util.HashMap;
018    import java.util.Map;
019    import org.apache.tapestry.IMarkupWriter;
020    import org.apache.tapestry.IRequestCycle;
021    import org.apache.tapestry.IScript;
022    import org.apache.tapestry.PageRenderSupport;
023    import org.apache.tapestry.TapestryUtils;
024    import org.apache.tapestry.components.Any;
025    
026    /**
027     * @since 4.1.2
028     */
029    public abstract class AjaxStatus extends Any
030    {
031        public abstract IScript getScript();
032        
033        protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle)
034        {
035            // render as if an Any component
036            super.renderComponent(writer, cycle);
037            // then add the script
038            if(!cycle.isRewinding()) {
039                PageRenderSupport pageRenderSupport = TapestryUtils.getPageRenderSupport(cycle, this);
040                Map symbols = new HashMap();
041                symbols.put("id", getClientId());
042                getScript().execute(this, cycle, pageRenderSupport, symbols);
043            }
044        }
045    }