--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/browser/SimpleEnumerator.d	Sat Aug 09 17:00:02 2008 +0200
@@ -0,0 +1,120 @@
+/*******************************************************************************
+ * Copyright (c) 2003, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+module dwt.browser.SimpleEnumerator;
+
+import dwt.dwthelper.utils;
+
+import dwt.internal.C;
+import dwt.internal.mozilla.XPCOM;
+import dwt.internal.mozilla.XPCOMObject;
+import dwt.internal.mozilla.nsID;
+import dwt.internal.mozilla.nsISimpleEnumerator;
+import dwt.internal.mozilla.nsISupports;
+
+class SimpleEnumerator {
+    XPCOMObject supports;
+    XPCOMObject simpleEnumerator;
+    int refCount = 0;
+    nsISupports[] values;
+    int index = 0;
+
+SimpleEnumerator (nsISupports[] values) {
+    this.values = values;
+    for (int i = 0; i < values.length; i++) {
+        values[i].AddRef ();
+    }
+    createCOMInterfaces ();
+}
+
+int AddRef () {
+    refCount++;
+    return refCount;
+}
+
+void createCOMInterfaces () {
+    /* Create each of the interfaces that this object implements */
+    supports = new XPCOMObject (new int[] {2, 0, 0}) {
+        public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
+        public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
+        public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
+    };
+
+    simpleEnumerator = new XPCOMObject (new int[] {2, 0, 0, 1, 1}) {
+        public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
+        public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
+        public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
+        public int /*long*/ method3 (int /*long*/[] args) {return HasMoreElements (args[0]);}
+        public int /*long*/ method4 (int /*long*/[] args) {return GetNext (args[0]);}
+    };
+}
+
+void disposeCOMInterfaces () {
+    if (supports !is null) {
+        supports.dispose ();
+        supports = null;
+    }   
+    if (simpleEnumerator !is null) {
+        simpleEnumerator.dispose ();
+        simpleEnumerator = null;    
+    }
+    if (values !is null) {
+        for (int i = 0; i < values.length; i++) {
+            values[i].Release ();
+        }
+        values = null;
+    }
+}
+
+int /*long*/ getAddress () {
+    return simpleEnumerator.getAddress ();
+}
+
+int QueryInterface (int /*long*/ riid, int /*long*/ ppvObject) {
+    if (riid is 0 || ppvObject is 0) return XPCOM.NS_ERROR_NO_INTERFACE;
+    nsID guid = new nsID ();
+    XPCOM.memmove (guid, riid, nsID.sizeof);
+
+    if (guid.Equals (nsISupports.NS_ISUPPORTS_IID)) {
+        XPCOM.memmove (ppvObject, new int /*long*/[] {supports.getAddress ()}, C.PTR_SIZEOF);
+        AddRef ();
+        return XPCOM.NS_OK;
+    }
+    if (guid.Equals (nsISimpleEnumerator.NS_ISIMPLEENUMERATOR_IID)) {
+        XPCOM.memmove (ppvObject, new int /*long*/[] {simpleEnumerator.getAddress ()}, C.PTR_SIZEOF);
+        AddRef ();
+        return XPCOM.NS_OK;
+    }
+
+    XPCOM.memmove (ppvObject, new int /*long*/[] {0}, C.PTR_SIZEOF);
+    return XPCOM.NS_ERROR_NO_INTERFACE;
+}
+
+int Release () {
+    refCount--;
+    if (refCount is 0) disposeCOMInterfaces ();
+    return refCount;
+}
+
+int HasMoreElements (int /*long*/ _retval) {
+    bool more = values !is null && index < values.length;
+    XPCOM.memmove (_retval, new int[] {more ? 1 : 0}, 4); /*PRBool */
+    return XPCOM.NS_OK;
+}   
+    
+int GetNext (int /*long*/ _retval) {
+    if (values is null || index is values.length) return XPCOM.NS_ERROR_UNEXPECTED;
+    nsISupports value = values[index++];
+    value.AddRef ();
+    XPCOM.memmove (_retval, new int /*long*/[] {value.getAddress ()}, C.PTR_SIZEOF);
+    return XPCOM.NS_OK;
+}       
+}
+