001    // Copyright 2004, 2005 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    
020    import org.apache.tapestry.BaseComponent;
021    import org.apache.tapestry.IActionListener;
022    import org.apache.tapestry.IRequestCycle;
023    import org.apache.tapestry.Tapestry;
024    import org.apache.tapestry.engine.IEngineService;
025    import org.apache.tapestry.engine.ILink;
026    
027    /**
028     * @author mindbridge
029     * @author Paul Green
030     * @since 4.0
031     */
032    public abstract class XTile extends BaseComponent implements IXTile
033    {
034        public abstract IActionListener getListener();
035    
036        public abstract String getSendName();
037    
038        public abstract String getReceiveName();
039    
040        public abstract String getErrorName();
041    
042        public abstract boolean getDisableCaching();
043    
044        // Injected
045    
046        public abstract IEngineService getService();
047    
048        public void trigger(IRequestCycle cycle)
049        {
050            IActionListener listener = getListener();
051    
052            if (listener == null)
053                throw Tapestry.createRequiredParameterException(this, "listener");
054    
055            listener.actionTriggered(this, cycle);
056        }
057    
058        public Map getScriptSymbols()
059        {
060            ILink link = getService().getLink(false, this);
061    
062            Map result = new HashMap();
063    
064            result.put("sendFunctionName", getSendName());
065            result.put("receiveFunctionName", getReceiveName());
066            result.put("errorFunctionName", getErrorName());
067            result.put("disableCaching", getDisableCaching() ? "true" : null);
068            result.put("url", link.getURL());
069    
070            return result;
071        }
072    
073    }