1 files changed, 162 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp b/src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp
new file mode 100644
index 00000000..9a270223
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp
@@ -0,0 +1,162 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is a COM aware array class.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corp.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Alec Flett <alecf@netscape.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsCOMArray.h"
+#include "nsCOMPtr.h"
+
+PR_STATIC_CALLBACK(PRBool) ReleaseObjects(void* aElement, void*);
+
+// implementations of non-trivial methods in nsCOMArray_base
+
+// copy constructor - we can't just memcpy here, because
+// we have to make sure we own our own array buffer, and that each
+// object gets another AddRef()
+nsCOMArray_base::nsCOMArray_base(const nsCOMArray_base& aOther)
+{
+    // make sure we do only one allocation
+    mArray.SizeTo(aOther.Count());
+    AppendObjects(aOther);
+}
+
+nsCOMArray_base::~nsCOMArray_base()
+{
+    PRInt32 count = Count(), i;
+    for (i = 0; i < count; ++i) {
+        nsISupports* obj = ObjectAt(i);
+        NS_IF_RELEASE(obj);
+    }                        
+}
+
+PRInt32
+nsCOMArray_base::IndexOfObject(nsISupports* aObject) const {
+    NS_ENSURE_TRUE(aObject, -1);
+    nsCOMPtr<nsISupports> supports = do_QueryInterface(aObject);
+    NS_ENSURE_TRUE(supports, -1);
+
+    PRInt32 i, count;
+    PRInt32 retval = -1;
+    count = mArray.Count();
+    for (i = 0; i < count; ++i) {
+        nsCOMPtr<nsISupports> arrayItem =
+            do_QueryInterface(NS_REINTERPRET_CAST(nsISupports*,mArray.ElementAt(i)));
+        if (arrayItem == supports) {
+            retval = i;
+            break;
+        }
+    }
+    return retval;
+}
+
+PRBool
+nsCOMArray_base::InsertObjectAt(nsISupports* aObject, PRInt32 aIndex) {
+    PRBool result = mArray.InsertElementAt(aObject, aIndex);
+    if (result)
+        NS_IF_ADDREF(aObject);
+    return result;
+}
+
+PRBool
+nsCOMArray_base::InsertObjectsAt(const nsCOMArray_base& aObjects, PRInt32 aIndex) {
+    PRBool result = mArray.InsertElementsAt(aObjects.mArray, aIndex);
+    if (result) {
+        // need to addref all these
+        PRInt32 count = aObjects.Count();
+        for (PRInt32 i = 0; i < count; ++i) {
+            NS_IF_ADDREF(aObjects.ObjectAt(i));
+        }
+    }
+    return result;
+}
+
+PRBool
+nsCOMArray_base::ReplaceObjectAt(nsISupports* aObject, PRInt32 aIndex)
+{
+    // its ok if oldObject is null here
+    nsISupports *oldObject =
+        NS_REINTERPRET_CAST(nsISupports*, mArray.SafeElementAt(aIndex));
+
+    PRBool result = mArray.ReplaceElementAt(aObject, aIndex);
+
+    // ReplaceElementAt could fail, such as if the array grows
+    // so only release the existing object if the replacement succeeded
+    if (result) {
+        // Make sure to addref first, in case aObject == oldObject
+        NS_IF_ADDREF(aObject);
+        NS_IF_RELEASE(oldObject);
+    }
+    return result;
+}
+
+PRBool
+nsCOMArray_base::RemoveObject(nsISupports *aObject)
+{
+    PRBool result = mArray.RemoveElement(aObject);
+    if (result)
+        NS_IF_RELEASE(aObject);
+    return result;
+}
+
+PRBool
+nsCOMArray_base::RemoveObjectAt(PRInt32 aIndex)
+{
+    nsISupports* element = ObjectAt(aIndex);
+    if (element) {
+        PRBool result = mArray.RemoveElementAt(aIndex);
+        if (result)
+            NS_IF_RELEASE(element);
+        return result;
+    }
+    return PR_FALSE;
+}
+
+// useful for destructors
+PRBool
+ReleaseObjects(void* aElement, void*)
+{
+    nsISupports* element = NS_STATIC_CAST(nsISupports*, aElement);
+    NS_IF_RELEASE(element);
+    return PR_TRUE;
+}
+
+void
+nsCOMArray_base::Clear()
+{
+    mArray.EnumerateForwards(ReleaseObjects, nsnull);
+    mArray.Clear();
+}
+