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.ILink;
025    import org.apache.tapestry.services.LinkFactory;
026    import org.apache.tapestry.services.ServiceConstants;
027    
028    /**
029     * @author mindbridge
030     * @author Paul Green
031     * @since 4.0
032     */
033    public abstract class XTile extends BaseComponent implements IXTile
034    {
035        public abstract LinkFactory getLinkFactory();
036        
037        public abstract IActionListener getListener();
038        public abstract String getSendName();
039        public abstract String getReceiveName();
040        public abstract String getErrorName();
041        public abstract boolean getDisableCaching();
042    
043            public void trigger(IRequestCycle cycle) {
044            IActionListener listener = getListener();
045    
046            if (listener == null)
047                    throw Tapestry.createRequiredParameterException(this, "listener");
048    
049            listener.actionTriggered(this, cycle);
050            }
051            
052            public Map getScriptSymbols()
053            {
054                    Map ret = new HashMap();
055                    ret.put("sendFunctionName", getSendName());
056                    ret.put("receiveFunctionName", getReceiveName());
057                    ret.put("errorFunctionName", getErrorName());
058                    ret.put("disableCaching", getDisableCaching() ? "true" : null);
059    
060            Map parameters = new HashMap();
061            parameters.put(ServiceConstants.SERVICE, XTileService.SERVICE_NAME);
062            parameters.put(ServiceConstants.PAGE, getPage().getPageName());
063            parameters.put(ServiceConstants.COMPONENT, getIdPath());
064                    
065                    ILink link = getLinkFactory().constructLink(getPage().getRequestCycle(), 
066                                    false, parameters, false);
067    
068                    ret.put("url", link.getURL());
069                    
070                    return ret;
071            }
072    
073    }