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Diffstat (limited to 'comm/mailnews/base/src/nsMsgEnumerator.h')
-rw-r--r-- | comm/mailnews/base/src/nsMsgEnumerator.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/comm/mailnews/base/src/nsMsgEnumerator.h b/comm/mailnews/base/src/nsMsgEnumerator.h new file mode 100644 index 0000000000..306c3e3d72 --- /dev/null +++ b/comm/mailnews/base/src/nsMsgEnumerator.h @@ -0,0 +1,45 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef _nsMsgEnumerator_H_ +#define _nsMsgEnumerator_H_ + +#include "nsIMsgEnumerator.h" + +/** + * A base implementation nsIMsgEnumerator for stepping over an ordered set + * of nsIMsgDBHdr objects. + * This provides the javascript iterable protocol (to support for...of + * constructs), but getNext() and hasMoreElements() must be implemented by + * derived classes. + */ +class nsBaseMsgEnumerator : public nsIMsgEnumerator { + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIMSGENUMERATOR + nsBaseMsgEnumerator(){}; + + protected: + virtual ~nsBaseMsgEnumerator(){}; +}; + +/** + * A base implementation nsIMsgThreadEnumerator for stepping over an ordered + * set of nsIMsgThread objects. + * This provides the javascript iterable protocol (to support for...of + * constructs), but getNext() and hasMoreElements() must be implemented by + * derived classes. + */ +class nsBaseMsgThreadEnumerator : public nsIMsgThreadEnumerator { + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIMSGTHREADENUMERATOR + nsBaseMsgThreadEnumerator(){}; + + protected: + virtual ~nsBaseMsgThreadEnumerator(){}; +}; + +#endif /* _nsMsgEnumerator_H_ */ |