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/*
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* Angkor Web Framework
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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package com.tirsen.angkor.widget;
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import com.tirsen.angkor.RenderContext;
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import com.tirsen.angkor.Component;
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import com.tirsen.angkor.event.Action;
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import com.tirsen.angkor.event.ActionListener;
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import com.tirsen.angkor.event.ActionSource;
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import com.tirsen.angkor.event.ActionSourceHelper;
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import java.io.IOException;
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/**
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* <!-- $Id: ImageButton.java,v 1.4 2002/10/13 19:59:23 tirsen Exp $ -->
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* <!-- $Author: tirsen $ -->
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*
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* @author Jon Tirs´n (tirsen@users.sourceforge.net)
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* @version $Revision: 1.4 $
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*/
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public class ImageButton extends Component implements ActionSource
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{
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private ActionSourceHelper actionSourceHelper = new ActionSourceHelper(this);
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private String imageURL;
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public ImageButton(String id)
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{
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super(id);
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}
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public ImageButton()
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{
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}
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public ImageButton(Action action)
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{
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setAction(action);
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}
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public void setAction(Action action)
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{
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actionSourceHelper.setAction(action);
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}
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public Action getAction()
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{
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return actionSourceHelper.getAction();
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}
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public void addActionListener(ActionListener listener)
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{
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actionSourceHelper.addActionListener(listener);
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}
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public void removeActionListener(ActionListener listener)
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{
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actionSourceHelper.removeActionListener(listener);
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}
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public void signalActionEvent()
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{
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actionSourceHelper.signalActionEvent();
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}
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public void setImageURL(String label)
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{
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this.imageURL = label;
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}
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public boolean isParsing()
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{
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return true;
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}
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public String getImageURL()
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{
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String resultingImageURL = null;
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if (imageURL != null)
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{
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resultingImageURL = imageURL;
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}
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else
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{
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if (getAction() != null) resultingImageURL = (String) getAction().getValue(Action.IMAGE_URL);
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}
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return resultingImageURL;
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}
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public String toString()
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{
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return getClass().getName() + "[" + getAction() + "]";
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}
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public void render(RenderContext context) throws IOException
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{
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if (isVisible())
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{
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context.startTag("INPUT name=\"" + uniqueId(context) + "\" border=\"0\" type=\"image\" src=\"" + getImageURL() + "\"");
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context.registerParsingComponent(this);
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}
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}
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public void parse(RenderContext context)
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{
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super.parse(context);
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if (context.getRequestParameter(getId() + ".x") != null)
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{
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actionSourceHelper.signalActionEvent(context);
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}
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}
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}
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