gecko-dev/xpcom/ds/nsICollection.idl

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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Scott Collins <scc@mozilla.org>: |do_QueryElementAt|
*/
#include "nsISerializable.idl"
#include "nsIEnumerator.idl"
[scriptable, uuid(83b6019c-cbc4-11d2-8cca-0060b0fc14a3)]
interface nsICollection : nsISerializable
{
PRUint32 Count();
nsISupports GetElementAt(in PRUint32 index);
void QueryElementAt(in PRUint32 index, in nsIIDRef uuid,
[iid_is(uuid),retval] out nsQIResult result);
void SetElementAt(in PRUint32 index, in nsISupports item);
void AppendElement(in nsISupports item);
void RemoveElement(in nsISupports item);
nsIEnumerator Enumerate();
void Clear();
};
%{C++
#ifndef nsCOMPtr_h__
#include "nsCOMPtr.h"
#endif
class NS_EXPORT nsQueryElementAt : public nsCOMPtr_helper
{
public:
nsQueryElementAt( nsICollection* aCollection, PRUint32 aIndex, nsresult* aErrorPtr )
: mCollection(aCollection),
mIndex(aIndex),
mErrorPtr(aErrorPtr)
{
// nothing else to do here
}
virtual nsresult operator()( const nsIID& aIID, void** ) const;
private:
nsICollection* mCollection;
PRUint32 mIndex;
nsresult* mErrorPtr;
};
inline
const nsQueryElementAt
do_QueryElementAt( nsICollection* aCollection, PRUint32 aIndex, nsresult* aErrorPtr = 0 )
{
return nsQueryElementAt(aCollection, aIndex, aErrorPtr);
}
%}