1 files changed, 179 insertions, 0 deletions
diff --git a/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WORepetition.java b/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WORepetition.java
new file mode 100644
index 0000000..afa118a
--- /dev/null
+++ b/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WORepetition.java
@@ -0,0 +1,179 @@
+/*
+ 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.util.Collection;
+import java.util.Iterator;
+
+import net.wotonomy.foundation.NSDictionary;
+
+public class WORepetition extends WODynamicElement {
+
+    protected int count;
+    protected int index;
+    protected Object item;
+    protected Collection list;
+    protected Iterator iterator;
+
+    protected WORepetition() {
+        super();
+    }
+
+    public WORepetition(String aName, NSDictionary aMap, WOElement template) {
+        super(aName, aMap, template);
+    }
+
+    public void setCount(int value) {
+        count = value;
+    }
+    
+    public int count() {
+        return count;
+    }
+
+    public void setIndex(int value) {
+        index = value;
+    }
+    public int index() {
+        return index;
+    }
+
+    public void setItem(Object value) {
+        item = value;
+    }
+    public Object item() {
+        return item;
+    }
+
+    public void setList(Collection value) {
+        list = value;
+    }
+    public Collection list() {
+        return list;
+    }
+
+    public void takeValuesFromRequest(WORequest r, WOContext c) {
+        c.appendZeroElementIDComponent();
+        pullValuesFromParent(c.component());
+        index = 0;
+        WOAssociation countAsoc = (WOAssociation)associations.objectForKey("count");
+        item = getNextItem();
+        while (item != null) {
+            pushValuesToParent(c.component());
+            rootElement.takeValuesFromRequest(r, c);
+            index++;
+            c.incrementLastElementIDComponent();
+            if (countAsoc != null && index >= count())
+                item = null;
+            else
+                item = getNextItem();
+        }
+        iterator = null;
+        c.deleteLastElementIDComponent();
+    }
+
+    public WOActionResults invokeAction(WORequest r, WOContext c) {
+        c.appendZeroElementIDComponent();
+        pullValuesFromParent(c.component());
+        index = 0;
+        WOAssociation countAsoc = (WOAssociation)associations.objectForKey("count");
+        item = getNextItem();
+        while (item != null) {
+            pushValuesToParent(c.component());
+            WOActionResults e = rootElement.invokeAction(r, c);
+            if (e != null)
+            {
+                iterator = null;
+                return e;
+            }
+            index++;
+            c.incrementLastElementIDComponent();
+            if (countAsoc != null && index >= count())
+                item = null;
+            else
+                item = getNextItem();
+        }
+        iterator = null;
+        c.deleteLastElementIDComponent();
+        return null;
+    }
+
+    public void appendToResponse(WOResponse r, WOContext c) {
+        c.appendZeroElementIDComponent();
+        pullValuesFromParent(c.component());
+        index = 0;
+        WOAssociation countAsoc = (WOAssociation)associations.objectForKey("count");
+        item = getNextItem();
+        while (item != null) {
+            pushValuesToParent(c.component());
+            rootElement.appendToResponse(r, c);
+            index++;
+            c.incrementLastElementIDComponent();
+            if (countAsoc != null || index < count())
+                item = null;
+            else
+                item = getNextItem();
+        }
+        iterator = null;
+        c.deleteLastElementIDComponent();
+    }
+
+    protected Object getNextItem() {
+        if ( iterator == null )
+        {
+            if ( list == null ) return null;
+            iterator = list.iterator();
+        }
+        if ( iterator.hasNext() ) 
+        {
+            return iterator.next();
+        }
+        return null;
+    }
+
+    protected void pullValuesFromParent(WOComponent c) {
+        Object value;
+        
+        value = valueForProperty("count", c);
+        if ( value instanceof Number )
+        {
+            setCount( ((Number)value).intValue() );
+        }
+        else
+        {
+            setCount( -1 );
+        }
+        
+        value = valueForProperty("list", c);
+        if ( value instanceof Collection )
+        {
+            setList( (Collection) value );
+        }
+        else
+        {
+            setList( null );
+        }
+    }
+
+    protected void pushValuesToParent(WOComponent c) {
+        setValueForProperty("index", new Integer(index), c);
+        setValueForProperty("item", item, c);
+    }
+
+}