Initial import from SVN

1 files changed, 136 insertions, 0 deletions

diff --git a/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WOString.java b/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WOString.java
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index 0000000..ef5b771
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+++ b/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WOString.java
@@ -0,0 +1,136 @@
+/*
+Wotonomy: OpenStep design patterns for pure Java applications.
+Copyright (C) 2000 Blacksmith, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library 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 for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, see http://www.gnu.org
+*/
+
+package net.wotonomy.web;
+
+import java.text.Format;
+
+import net.wotonomy.foundation.NSDictionary;
+import net.wotonomy.foundation.NSNumberFormatter;
+import net.wotonomy.foundation.NSTimestampFormatter;
+
+/**
+* WOString renders a dynamically generated string in the output.
+* Bindings are:
+* <ul>
+* <li>value: a property returning a value which will be rendered as the 
+* output.  If a formatter is not used, then the value must be convertable
+* to a String with toString().</li>
+* <li>escapeHTML: a property returning a value convertable to a Boolean
+* indicating whether the any html characters in the output should be
+* escaped so they are shown as html characters rather than interpreted
+* as html.</li>
+* <li>formatter: a property returning a Format object that will be
+* used to format the value into a String.</li>
+* <li>dateformat: a property returning a DateFormat object that will be
+* used to format the value into a String.</li>
+* <li>numberformat: a property returning a NumberFormat object that will be
+* used to format the value into a String.  Not yet implemented.</li>
+* <li>valueWhenEmpty: a property returning a String that will be used
+* in place of an empty or null value.  Not yet implemented.</li>
+* </ul>
+*
+* @author michael@mpowers.net
+* @author $Author: cgruber $
+* @version $Revision: 905 $
+*/
+public class WOString extends WODynamicElement
+{
+	protected Object value;
+	protected boolean escapeHTML;
+	protected Format formatter;
+	protected String dateformat;
+	protected String numberformat;
+    protected Object valueWhenEmpty;
+
+	/**
+	* The default constructor.
+	*/
+    protected WOString ()
+    {
+    }
+    
+    public WOString (
+    	String aName, NSDictionary anAssociationMap, WOElement aRootElement)
+    {
+    	super( aName, anAssociationMap, aRootElement );
+	    escapeHTML = true;
+    }
+
+    public void appendToResponse (WOResponse aResponse, WOContext aContext)
+    {	
+        WOComponent c = aContext.component();
+        numberformat = stringForProperty("numberformat", c );
+        dateformat = stringForProperty("dateformat", c );
+        formatter = (Format) valueForProperty("formatter", c );
+        escapeHTML = booleanForProperty("escapeHTML", c );
+        value = valueForProperty("value", c );
+        valueWhenEmpty = valueForProperty("valueWhenEmpty", c );
+        
+        Object result = value;
+	    if ( result != null )
+        {
+            if ( formatter != null )
+            {
+                try
+                {
+                    result = formatter.format( result );
+                }
+                catch ( IllegalArgumentException exc )
+                {
+                }
+            }
+            if ( dateformat != null )
+            {
+                try
+                {
+                    result = new NSTimestampFormatter( dateformat ).format( result );
+                }
+                catch ( IllegalArgumentException exc )
+                {
+                }
+            }
+            if ( numberformat != null )
+            {
+                try
+                {
+                    result = new NSNumberFormatter( numberformat ).format( result );
+                }
+                catch ( IllegalArgumentException exc )
+                {
+                }
+            }
+        }
+	    if ( result == null )
+	    {
+            result = valueWhenEmpty;
+            if ( result == null )
+            {
+                result = "nil";
+            }
+	    }
+    	if ( escapeHTML )
+	    {
+    		aResponse.appendContentHTMLString( result.toString() );
+	    }
+	    else
+	    {
+    		aResponse.appendContentString( result.toString() );
+		}
+    }
+}