1 files changed, 43 insertions, 0 deletions
diff --git a/comm/mailnews/mime/src/mimecont.h b/comm/mailnews/mime/src/mimecont.h
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+++ b/comm/mailnews/mime/src/mimecont.h
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+/* -*- 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 _MIMECONT_H_
+#define _MIMECONT_H_
+
+#include "mimeobj.h"
+
+/* MimeContainer is the class for the objects representing all MIME
+   types which can contain other MIME objects within them.  In addition
+   to the methods inherited from MimeObject, it provides one method:
+
+   int add_child (MimeObject *parent, MimeObject *child)
+
+     Given a parent (a subclass of MimeContainer) this method adds the
+     child (any MIME object) to the parent's list of children.
+
+     The MimeContainer `finalize' method will finalize the children as well.
+ */
+
+typedef struct MimeContainerClass MimeContainerClass;
+typedef struct MimeContainer MimeContainer;
+
+struct MimeContainerClass {
+  MimeObjectClass object;
+  int (*add_child)(MimeObject* parent, MimeObject* child);
+};
+
+extern MimeContainerClass mimeContainerClass;
+
+struct MimeContainer {
+  MimeObject object; /* superclass variables */
+
+  MimeObject** children; /* list of contained objects */
+  int32_t nchildren;     /* how many */
+};
+
+#define MimeContainerClassInitializer(ITYPE, CSUPER) \
+  { MimeObjectClassInitializer(ITYPE, CSUPER) }
+
+#endif /* _MIMECONT_H_ */