Delayed loading of IMAP message parts.

	* camel-types.h: typedef CamelMessageInfo and
	CamelMessageContentInfo here

	* camel-folder-summary.h: Add a "size" field to
	CamelMessageContentInfo.

	* camel-folder-summary.c (camel_folder_summary_content_info_new,
	camel_folder_summary_content_info_free): Renamed and made
	non-static for providers that construct their own content info.
	(content_info_load, content_info_save): load/save size

	* camel-data-wrapper.c (camel_data_wrapper_is_offline): New
	function to return if a data wrapper's contents are "offline". (So
	that, for example, we don't make thumbnails of images that haven't
	been loaded off the IMAP server yet.) Defaults to FALSE.

	* providers/imap/camel-imap-folder.c (camel_imap_folder_selected):
	Fix a bug in re-selecting a folder when messages have been
	expunged from it by another client in the meantime.
	(imap_get_message): Rewrite. If the message is larger than a
	certain size, just create a skeleton message containing
	CamelImapWrappers that will read parts as needed. This way, large
	attachments only need to be downloaded if the user looks at them,
	and multipart/alternative alternatives that aren't used will never
	be downloaded at all.
	(imap_update_summary): Rewrite this a bunch too to make the
	parsing more robust.

	* providers/imap/camel-imap-summary.c
	(CAMEL_IMAP_SUMMARY_VERSION): bump.
	(camel_imap_summary_new): Set build_content to TRUE.
	(content_info_load, content_info_save): Only save/load the content
	for messages that have it. (The content info gets created as a
	side effect of imap_get_message.)

	* providers/imap/camel-imap-utils.c (imap_parse_body): New routine
	(and helpers) to parse an IMAP 'body' FETCH response and fill in a
	CamelMessageContentInfo from it.

	* providers/imap/Makefile.am (libcamelimap_la_SOURCES,
	libcamelimap_la_HEADERS): add camel-imap-wrapper.

svn path=/trunk/; revision=7557

1 files changed, 68 insertions, 0 deletions

diff --git a/camel/providers/imap/camel-imap-wrapper.h b/camel/providers/imap/camel-imap-wrapper.h
new file mode 100644
index 0000000000..34b28424b7
--- /dev/null
+++ b/camel/providers/imap/camel-imap-wrapper.h
@@ -0,0 +1,68 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* camel-imap-wrapper.h: data wrapper for offline IMAP data */
+
+/*
+ * Copyright 2000 Helix Code, Inc. (http://www.helixcode.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+
+#ifndef CAMEL_IMAP_WRAPPER_H
+#define CAMEL_IMAP_WRAPPER_H 1
+
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus }*/
+
+#include <camel/camel-data-wrapper.h>
+
+#define CAMEL_IMAP_WRAPPER_TYPE     (camel_imap_wrapper_get_type ())
+#define CAMEL_IMAP_WRAPPER(obj)     (CAMEL_CHECK_CAST((obj), CAMEL_IMAP_WRAPPER_TYPE, CamelImapWrapper))
+#define CAMEL_IMAP_WRAPPER_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), CAMEL_IMAP_WRAPPER_TYPE, CamelImapWrapperClass))
+#define CAMEL_IS_IMAP_WRAPPER(o)    (CAMEL_CHECK_TYPE((o), CAMEL_IMAP_WRAPPER_TYPE))
+
+typedef struct
+{
+	CamelDataWrapper parent_object;
+
+	CamelFolder *folder;
+	char *uid, *part_spec;
+	CamelMimePart *part;
+} CamelImapWrapper;
+
+typedef struct {
+	CamelDataWrapperClass parent_class;
+
+} CamelImapWrapperClass;
+
+/* Standard Camel function */
+CamelType camel_imap_wrapper_get_type (void);
+
+/* Constructor */
+CamelDataWrapper *camel_imap_wrapper_new (CamelFolder *folder,
+					  CamelContentType *type,
+					  const char *uid,
+					  const char *part_spec,
+					  CamelMimePart *part);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* CAMEL_DATA_WRAPPER_H */