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, 17 insertions, 1 deletions

diff --git a/camel/camel-data-wrapper.c b/camel/camel-data-wrapper.c
index d5a43d27ba..277c4025bb 100644
--- a/camel/camel-data-wrapper.c
+++ b/camel/camel-data-wrapper.c
@@ -1,4 +1,4 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; -*- */
 /* camel-data-wrapper.c : Abstract class for a data_wrapper */
 
 /*
@@ -66,6 +66,7 @@ camel_data_wrapper_init (gpointer object, gpointer klass)
 	CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
 
 	camel_data_wrapper->mime_type = header_content_type_new ("application", "octet-stream");
+	camel_data_wrapper->offline = FALSE;
 }
 
 static void
@@ -272,3 +273,18 @@ camel_data_wrapper_set_mime_type_field (CamelDataWrapper *data_wrapper,
 {
 	CDW_CLASS (data_wrapper)->set_mime_type_field (data_wrapper, mime_type);
 }
+
+
+/**
+ * camel_data_wrapper_is_offline:
+ * @data_wrapper: a data wrapper
+ *
+ * Return value: whether @data_wrapper is "offline" (data stored
+ * remotely) or not. Some optional code paths may choose to not
+ * operate on offline data.
+ **/
+gboolean
+camel_data_wrapper_is_offline (CamelDataWrapper *data_wrapper)
+{
+	return data_wrapper->offline;
+}