[evolution-data-server] CamelIMAPXStore: Add imapx_store_process_mailbox_attributes().

[Matthew Barnes <mbarnes src gnome org>]

commit fad49a0e6117ecf6a39de7b68916e8a11f5c71c3
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Aug 29 10:37:16 2013 -0400

    CamelIMAPXStore: Add imapx_store_process_mailbox_attributes().
    
    Processes a CamelIMAPXMailbox by adding relevant information to the
    CamelStoreSummary, and emitting the appropriate CamelStore signals.

 camel/camel-imapx-store.c |  180 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 180 insertions(+), 0 deletions(-)
---
diff --git a/camel/camel-imapx-store.c b/camel/camel-imapx-store.c
index 42e680d..b629a7e 100644
--- a/camel/camel-imapx-store.c
+++ b/camel/camel-imapx-store.c
@@ -356,6 +356,183 @@ imapx_store_add_mailbox_to_folder (CamelIMAPXStore *store,
        g_free (folder_path);
 }
 
+static CamelStoreInfoFlags
+imapx_store_mailbox_attributes_to_flags (CamelIMAPXMailbox *mailbox)
+{
+       CamelStoreInfoFlags store_info_flags = 0;
+       const gchar *attribute;
+
+       attribute = CAMEL_IMAPX_LIST_ATTR_NOSELECT;
+       if (camel_imapx_mailbox_has_attribute (mailbox, attribute))
+               store_info_flags |= CAMEL_STORE_INFO_FOLDER_NOSELECT;
+
+       attribute = CAMEL_IMAPX_LIST_ATTR_NOINFERIORS;
+       if (camel_imapx_mailbox_has_attribute (mailbox, attribute))
+               store_info_flags |= CAMEL_STORE_INFO_FOLDER_NOINFERIORS;
+
+       attribute = CAMEL_IMAPX_LIST_ATTR_HASCHILDREN;
+       if (camel_imapx_mailbox_has_attribute (mailbox, attribute))
+               store_info_flags |= CAMEL_STORE_INFO_FOLDER_CHILDREN;
+
+       attribute = CAMEL_IMAPX_LIST_ATTR_HASNOCHILDREN;
+       if (camel_imapx_mailbox_has_attribute (mailbox, attribute))
+               store_info_flags |= CAMEL_STORE_INFO_FOLDER_NOCHILDREN;
+
+       attribute = CAMEL_IMAPX_LIST_ATTR_SUBSCRIBED;
+       if (camel_imapx_mailbox_has_attribute (mailbox, attribute))
+               store_info_flags |= CAMEL_STORE_INFO_FOLDER_SUBSCRIBED;
+
+       /* XXX Does "\Marked" mean CAMEL_STORE_INFO_FOLDER_FLAGGED?
+        *     Who the heck knows; the enum value is undocumented. */
+
+       return store_info_flags;
+}
+
+static void
+imapx_store_process_mailbox_attributes (CamelIMAPXStore *store,
+                                        CamelIMAPXMailbox *mailbox,
+                                        const gchar *oldname)
+{
+       CamelFolderInfo *fi;
+       CamelIMAPXStoreInfo *si;
+       CamelStoreInfoFlags flags;
+       CamelStoreSummary *summary;
+       CamelSettings *settings;
+       gboolean use_subscriptions;
+       gboolean mailbox_is_subscribed;
+       gboolean mailbox_is_nonexistent;
+       gboolean mailbox_was_in_summary;
+       gboolean mailbox_was_subscribed;
+       gboolean emit_folder_created_subscribed = FALSE;
+       gboolean emit_folder_unsubscribed_deleted = FALSE;
+       gboolean emit_folder_renamed = FALSE;
+       const gchar *folder_path;
+       const gchar *mailbox_name;
+       gchar separator;
+
+       summary = CAMEL_STORE_SUMMARY (store->summary);
+
+       settings = camel_service_ref_settings (CAMEL_SERVICE (store));
+       use_subscriptions = camel_imapx_settings_get_use_subscriptions (
+               CAMEL_IMAPX_SETTINGS (settings));
+       g_object_unref (settings);
+
+       mailbox_name = camel_imapx_mailbox_get_name (mailbox);
+       separator = camel_imapx_mailbox_get_separator (mailbox);
+
+       mailbox_is_subscribed =
+               camel_imapx_mailbox_has_attribute (
+               mailbox, CAMEL_IMAPX_LIST_ATTR_SUBSCRIBED) ||
+               camel_imapx_mailbox_is_inbox (mailbox_name);
+
+       mailbox_is_nonexistent =
+               camel_imapx_mailbox_has_attribute (
+               mailbox, CAMEL_IMAPX_LIST_ATTR_NONEXISTENT);
+
+       /* XXX The flags type transforms from CamelStoreInfoFlags
+        *     to CamelFolderInfoFlags about half-way through this.
+        *     We should really eliminate the confusing redundancy. */
+       flags = imapx_store_mailbox_attributes_to_flags (mailbox);
+
+       /* Summary retains ownership of the returned CamelStoreInfo. */
+       si = camel_imapx_store_summary_mailbox (store->summary, mailbox_name);
+       if (si != NULL) {
+               mailbox_was_in_summary = TRUE;
+               if (si->info.flags & CAMEL_STORE_INFO_FOLDER_SUBSCRIBED)
+                       mailbox_was_subscribed = TRUE;
+               else
+                       mailbox_was_subscribed = FALSE;
+       } else {
+               /* XXX Shouldn't this take a GError if it can fail? */
+               si = camel_imapx_store_summary_add_from_mailbox (
+                       store->summary, mailbox_name, separator);
+               g_return_if_fail (si != NULL);
+               mailbox_was_in_summary = FALSE;
+               mailbox_was_subscribed = FALSE;
+       }
+
+       /* Check if the SUBSCRIBED flags disagree. */
+       if ((flags ^ si->info.flags) & CAMEL_STORE_INFO_FOLDER_SUBSCRIBED) {
+               si->info.flags &= ~CAMEL_FOLDER_SUBSCRIBED;
+               si->info.flags |= flags & CAMEL_FOLDER_SUBSCRIBED;
+               camel_store_summary_touch (summary);
+       }
+
+       folder_path = camel_store_info_path (summary, (CamelStoreInfo *) si);
+       fi = imapx_store_build_folder_info (store, folder_path, flags);
+
+       /* Figure out which signals to emit, if any. */
+       if (use_subscriptions) {
+               /* If we are honoring folder subscriptions, then
+                * subscription changes are equivalent to folder
+                * creation / deletion as far as we're concerned. */
+               if (mailbox_is_subscribed && !mailbox_is_nonexistent) {
+                       if (oldname != NULL) {
+                               emit_folder_renamed = TRUE;
+                       } else if (!mailbox_was_subscribed) {
+                               emit_folder_created_subscribed = TRUE;
+                       }
+               }
+               if (!mailbox_is_subscribed && mailbox_was_subscribed)
+                       emit_folder_unsubscribed_deleted = TRUE;
+               if (mailbox_is_nonexistent && mailbox_was_subscribed)
+                       emit_folder_unsubscribed_deleted = TRUE;
+       } else {
+               if (!mailbox_is_nonexistent) {
+                       if (oldname != NULL) {
+                               emit_folder_renamed = TRUE;
+                       } else if (!mailbox_was_in_summary) {
+                               emit_folder_created_subscribed = TRUE;
+                       }
+               }
+               if (mailbox_is_nonexistent && mailbox_was_in_summary)
+                       emit_folder_unsubscribed_deleted = TRUE;
+       }
+
+       /* At most one signal emission flag should be set. */
+       g_warn_if_fail (
+               (emit_folder_created_subscribed ? 1 : 0) +
+               (emit_folder_unsubscribed_deleted ? 1 : 0) +
+               (emit_folder_renamed ? 1 : 0) <= 1);
+
+       if (emit_folder_created_subscribed) {
+               camel_store_folder_created (
+                       CAMEL_STORE (store), fi);
+               camel_subscribable_folder_subscribed (
+                       CAMEL_SUBSCRIBABLE (store), fi);
+       }
+
+       if (emit_folder_unsubscribed_deleted) {
+               camel_subscribable_folder_unsubscribed (
+                       CAMEL_SUBSCRIBABLE (store), fi);
+               camel_store_folder_deleted (
+                       CAMEL_STORE (store), fi);
+       }
+
+       if (emit_folder_renamed) {
+               gchar *old_folder_path;
+               gchar *new_folder_path;
+
+               old_folder_path = camel_imapx_mailbox_to_folder_path (
+                       oldname, separator);
+               new_folder_path = camel_imapx_mailbox_to_folder_path (
+                       mailbox_name, separator);
+
+               imapx_store_rename_folder_info (
+                       store, old_folder_path, new_folder_path);
+               imapx_store_rename_storage_path (
+                       store, old_folder_path, new_folder_path);
+
+               camel_store_folder_renamed (
+                       CAMEL_STORE (store), old_folder_path, fi);
+
+               g_free (old_folder_path);
+               g_free (new_folder_path);
+       }
+
+       camel_folder_info_free (fi);
+}
+
 static void
 imapx_store_mailbox_select_cb (CamelIMAPXServer *server,
                                CamelIMAPXMailbox *mailbox,
@@ -376,6 +553,7 @@ imapx_store_mailbox_created_cb (CamelIMAPXServer *server,
                                 CamelIMAPXStore *store)
 {
        imapx_store_add_mailbox_to_folder (store, mailbox);
+       imapx_store_process_mailbox_attributes (store, mailbox, NULL);
 }
 
 static void
@@ -384,6 +562,7 @@ imapx_store_mailbox_renamed_cb (CamelIMAPXServer *server,
                                 const gchar *oldname,
                                 CamelIMAPXStore *store)
 {
+       imapx_store_process_mailbox_attributes (store, mailbox, oldname);
 }
 
 static void
@@ -391,6 +570,7 @@ imapx_store_mailbox_updated_cb (CamelIMAPXServer *server,
                                 CamelIMAPXMailbox *mailbox,
                                 CamelIMAPXStore *store)
 {
+       imapx_store_process_mailbox_attributes (store, mailbox, NULL);
 }
 
 static void