1 files changed, 133 insertions, 0 deletions
diff --git a/wizards/com/sun/star/wizards/ui/event/AbstractListener.java b/wizards/com/sun/star/wizards/ui/event/AbstractListener.java
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+++ b/wizards/com/sun/star/wizards/ui/event/AbstractListener.java
@@ -0,0 +1,133 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+package com.sun.star.wizards.ui.event;
+
+import com.sun.star.awt.XControl;
+import com.sun.star.lang.EventObject;
+import com.sun.star.uno.UnoRuntime;
+import com.sun.star.wizards.common.Helper;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.Hashtable;
+
+/**
+ * This class is a base class for listener classes.
+ * It uses a hashtable to map between a ComponentName, EventName and a MethodInvokation Object.
+ * To use this class do the following:<br/>
+ * <list>
+ * <li>Write a subclass which implements the needed Listener(s).</li>
+ * in the even methods, use invoke(...).
+ * <li>When instanciating the component, register the subclass as the event listener.</li>
+ * <li>Write the methods which should be performed when the event occures.</li>
+ * <li>call the "add" method, to define a component-event-action mapping.</li>
+ * </list>
+ * @author  rpiterman
+ */
+public class AbstractListener
+{
+
+    private Hashtable mHashtable = new Hashtable();
+
+    /** Creates a new instance of AbstractListener */
+    public AbstractListener()
+    {
+    }
+
+    public void add(String componentName, String eventName, String methodName, Object target)
+    {
+        try
+        {
+            add(componentName, eventName, new MethodInvocation(methodName, target));
+        }
+        catch (Exception ex)
+        {
+            ex.printStackTrace();
+        }
+    }
+
+    public void add(String componentName, String eventName, MethodInvocation mi)
+    {
+        mHashtable.put(componentName + eventName, mi);
+    }
+
+    public MethodInvocation get(String componentName, String eventName)
+    {
+        return (MethodInvocation) mHashtable.get(componentName + eventName);
+    }
+
+    public Object invoke(String componentName, String eventName, Object param)
+    {
+        try
+        {
+            MethodInvocation mi = get(componentName, eventName);
+            if (mi != null)
+            {
+                return mi.invoke(param);
+            }
+            else
+            {
+                return null;
+            }
+        }
+        catch (InvocationTargetException ite)
+        {
+
+            System.out.println("=======================================================");
+            System.out.println("=== Note: An Exception was thrown which should have ===");
+            System.out.println("=== caused a crash. I caught it. Please report this ===");
+            System.out.println("=== to  openoffice.org                              ===");
+            System.out.println("=======================================================");
+
+            ite.printStackTrace();
+
+        }
+        catch (IllegalAccessException iae)
+        {
+            iae.printStackTrace();
+        }
+        catch (Exception ex)
+        {
+            System.out.println("=======================================================");
+            System.out.println("=== Note: An Exception was thrown which should have ===");
+            System.out.println("=== caused a crash. I Catched it. Please report this ==");
+            System.out.println("=== to  openoffice.org                               ==");
+            System.out.println("=======================================================");
+            ex.printStackTrace();
+        }
+
+        return null;
+    }
+
+    /**
+     * Rerurns the property "name" of the Object which is the source of the event.
+     */
+    public static String getEventSourceName(EventObject eventObject)
+    {
+        XControl xControl = (XControl) UnoRuntime.queryInterface(XControl.class, eventObject.Source);
+        return (String) Helper.getUnoPropertyValue(xControl.getModel(), "Name", String.class);
+    }
+}