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[evolution] EMailShellView: Open the selected folder ourselves.

commit ae28ea4621c9ced08524548ca67a5297c284ce01
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon May 2 21:01:48 2011 -0400

    EMailShellView: Open the selected folder ourselves.
    
    This one's a little involved:
    
     - EMailShellView now obtains a CamelFolder itself in response to
       EMFolderTree::folder-selected signals.  Uses EActivity to do so.
    
     - Revise EMFolderTree::folder-selected signal arguments to be more
       useful: emit a CamelStore object instead of a folder URI.
    
     - Also revise EMFolderTree::folder-activiated signal arguments the
       same way while we're at it.
    
     - Remove the "folder_uri" argument from e_mail_reader_set_folder().
       If you have a CamelFolder object you can obtain the URI string by
       calling camel_folder_get_uri().

 e-util/e-marshal.list                    |    2 +-
 mail/e-mail-notebook-view.c              |   14 ++--
 mail/e-mail-paned-view.c                 |    7 +-
 mail/e-mail-reader-utils.c               |    2 +-
 mail/e-mail-reader.c                     |   22 +++---
 mail/e-mail-reader.h                     |    6 +-
 mail/em-folder-selector.c                |   14 +++-
 mail/em-folder-tree.c                    |   49 +++++++------
 mail/em-folder-tree.h                    |   10 +-
 mail/mail.error.xml                      |    6 ++
 modules/mail/e-mail-shell-backend.c      |    2 +-
 modules/mail/e-mail-shell-content.c      |    5 +-
 modules/mail/e-mail-shell-view-private.c |  119 +++++++++++++++++++++++++++---
 modules/mail/e-mail-shell-view-private.h |    3 +
 modules/mail/e-mail-shell-view.c         |   22 ++----
 15 files changed, 194 insertions(+), 89 deletions(-)
---
diff --git a/e-util/e-marshal.list b/e-util/e-marshal.list
index d4e6f43..7cdfc09 100644
--- a/e-util/e-marshal.list
+++ b/e-util/e-marshal.list
@@ -43,6 +43,7 @@ NONE:OBJECT,STRING
 NONE:OBJECT,STRING,INT
 NONE:OBJECT,STRING,STRING
 NONE:OBJECT,STRING,STRING,INT,STRING,STRING,STRING
+NONE:OBJECT,STRING,UINT
 NONE:POINTER,INT
 NONE:POINTER,INT,INT,INT,INT
 NONE:POINTER,INT,OBJECT
@@ -53,6 +54,5 @@ NONE:STRING,DOUBLE
 NONE:STRING,INT,INT
 NONE:STRING,POINTER,POINTER
 NONE:STRING,STRING
-NONE:STRING,STRING,UINT
 NONE:UINT,STRING
 STRING:NONE
diff --git a/mail/e-mail-notebook-view.c b/mail/e-mail-notebook-view.c
index bd92b52..d5a7965 100644
--- a/mail/e-mail-notebook-view.c
+++ b/mail/e-mail-notebook-view.c
@@ -981,7 +981,7 @@ mail_netbook_view_open_mail (EMailView *view,
 		E_MAIL_READER (pane), "folder-loaded",
 		G_CALLBACK (reconnect_folder_loaded_event), nview);
 	e_mail_reader_set_folder (
-		E_MAIL_READER (pane), folder, folder_uri);
+		E_MAIL_READER (pane), folder);
 	e_mail_reader_set_group_by_threads (
 		E_MAIL_READER (pane),
 		e_mail_reader_get_group_by_threads (E_MAIL_READER (view)));
@@ -1078,22 +1078,23 @@ build_histogram (GtkWidget *widget, CamelFolder *folder)
 
 static void
 mail_notebook_view_set_folder (EMailReader *reader,
-                               CamelFolder *folder,
-                               const gchar *folder_uri)
+                               CamelFolder *folder)
 {
 	EMailNotebookViewPrivate *priv;
 	GtkWidget *new_view;
+	const gchar *folder_uri;
 #if HAVE_CLUTTER
 	EMailTab *tab;
 	ClutterActor *clone;
 	ClutterTimeline *timeline;
 #endif
 
-	if (!folder_uri)
+	if (folder == NULL)
 		return;
 
 	priv = E_MAIL_NOTEBOOK_VIEW (reader)->priv;
 
+	folder_uri = camel_folder_get_uri (folder);
 	new_view = g_hash_table_lookup (priv->views, folder_uri);
 	if (new_view) {
 		gint curr = emnv_get_page_num (E_MAIL_NOTEBOOK_VIEW (reader), new_view);
@@ -1123,7 +1124,8 @@ mail_notebook_view_set_folder (EMailReader *reader,
 		return;
 	}
 
-	if (folder || folder_uri) {
+	/* FIXME Redundant NULL check. */
+	if (folder != NULL) {
 		gint page;
 #if HAVE_CLUTTER
 		GtkWidget *list;
@@ -1221,7 +1223,7 @@ mail_notebook_view_set_folder (EMailReader *reader,
 		g_object_set_data ((GObject *)list, "actor", priv->actor);
 
 #endif
-		e_mail_reader_set_folder (E_MAIL_READER (priv->current_view), folder, folder_uri);
+		e_mail_reader_set_folder (E_MAIL_READER (priv->current_view), folder);
 		g_hash_table_insert (priv->views, g_strdup (folder_uri), priv->current_view);
 		g_signal_connect (
 			priv->current_view, "changed",
diff --git a/mail/e-mail-paned-view.c b/mail/e-mail-paned-view.c
index c1e4cc4..62d3e67 100644
--- a/mail/e-mail-paned-view.c
+++ b/mail/e-mail-paned-view.c
@@ -456,8 +456,7 @@ mail_paned_view_get_window (EMailReader *reader)
 
 static void
 mail_paned_view_set_folder (EMailReader *reader,
-                            CamelFolder *folder,
-                            const gchar *folder_uri)
+                            CamelFolder *folder)
 {
 	EMailPanedViewPrivate *priv;
 	EMailView *view;
@@ -469,6 +468,7 @@ mail_paned_view_set_folder (EMailReader *reader,
 	GtkWidget *message_list;
 	GKeyFile *key_file;
 	gchar *group_name;
+	const gchar *folder_uri;
 	const gchar *key;
 	gboolean value;
 	GError *error = NULL;
@@ -488,7 +488,7 @@ mail_paned_view_set_folder (EMailReader *reader,
 
 	/* Chain up to interface's default set_folder() method. */
 	default_interface = g_type_default_interface_peek (E_TYPE_MAIL_READER);
-	default_interface->set_folder (reader, folder, folder_uri);
+	default_interface->set_folder (reader, folder);
 
 	if (folder == NULL)
 		goto exit;
@@ -507,6 +507,7 @@ mail_paned_view_set_folder (EMailReader *reader,
 
 	/* Restore the folder's preview and threaded state. */
 
+	folder_uri = camel_folder_get_uri (folder);
 	key_file = e_shell_view_get_state_key_file (shell_view);
 	group_name = g_strdup_printf ("Folder %s", folder_uri);
 
diff --git a/mail/e-mail-reader-utils.c b/mail/e-mail-reader-utils.c
index c74caad..7f7d57d 100644
--- a/mail/e-mail-reader-utils.c
+++ b/mail/e-mail-reader-utils.c
@@ -294,7 +294,7 @@ e_mail_reader_open_selected (EMailReader *reader)
 
 		browser = e_mail_browser_new (backend);
 		e_mail_reader_set_folder (
-			E_MAIL_READER (browser), folder, folder_uri);
+			E_MAIL_READER (browser), folder);
 		e_mail_reader_set_message (E_MAIL_READER (browser), uid);
 		copy_tree_state (reader, E_MAIL_READER (browser));
 		e_mail_reader_set_group_by_threads (
diff --git a/mail/e-mail-reader.c b/mail/e-mail-reader.c
index f26921c..c9a4386 100644
--- a/mail/e-mail-reader.c
+++ b/mail/e-mail-reader.c
@@ -1697,11 +1697,9 @@ action_mail_show_source_cb (GtkAction *action,
 	CamelFolder *folder;
 	GtkWidget *browser;
 	GPtrArray *uids;
-	const gchar *folder_uri;
 
 	backend = e_mail_reader_get_backend (reader);
 	folder = e_mail_reader_get_folder (reader);
-	folder_uri = e_mail_reader_get_folder_uri (reader);
 	uids = e_mail_reader_get_selected_uids (reader);
 
 	g_return_if_fail (uids->len > 0);
@@ -1714,7 +1712,7 @@ action_mail_show_source_cb (GtkAction *action,
 		em_format_set_mode (
 			EM_FORMAT (formatter), EM_FORMAT_MODE_SOURCE);
 
-	e_mail_reader_set_folder (reader, folder, folder_uri);
+	e_mail_reader_set_folder (reader, folder);
 	e_mail_reader_set_message (reader, uids->pdata[0]);
 	gtk_widget_show (browser);
 
@@ -2899,8 +2897,7 @@ mail_reader_get_enable_show_folder (EMailReader *reader)
 
 static void
 mail_reader_set_folder (EMailReader *reader,
-                        CamelFolder *folder,
-                        const gchar *folder_uri)
+                        CamelFolder *folder)
 {
 	EMailReaderPrivate *priv;
 	EMFormatHTML *formatter;
@@ -2908,7 +2905,7 @@ mail_reader_set_folder (EMailReader *reader,
 	GtkWidget *message_list;
 	EMailBackend *backend;
 	EShell *shell;
-	const gchar *previous_folder_uri;
+	const gchar *folder_uri = NULL;
 	gboolean outgoing;
 
 	priv = E_MAIL_READER_GET_PRIVATE (reader);
@@ -2918,7 +2915,6 @@ mail_reader_set_folder (EMailReader *reader,
 	message_list = e_mail_reader_get_message_list (reader);
 
 	previous_folder = e_mail_reader_get_folder (reader);
-	previous_folder_uri = e_mail_reader_get_folder_uri (reader);
 
 	shell = e_shell_backend_get_shell (E_SHELL_BACKEND (backend));
 
@@ -2927,9 +2923,12 @@ mail_reader_set_folder (EMailReader *reader,
 		mail_sync_folder (previous_folder, NULL, NULL);
 
 	/* Skip the rest if we're already viewing the folder. */
-	if (g_strcmp0 (folder_uri, previous_folder_uri) == 0)
+	if (folder == previous_folder)
 		return;
 
+	if (folder != NULL)
+		folder_uri = camel_folder_get_uri (folder);
+
 	outgoing = folder != NULL && folder_uri != NULL && (
 		em_utils_folder_is_drafts (folder, folder_uri) ||
 		em_utils_folder_is_outbox (folder, folder_uri) ||
@@ -4109,8 +4108,7 @@ e_mail_reader_get_folder_uri (EMailReader *reader)
 
 void
 e_mail_reader_set_folder (EMailReader *reader,
-                          CamelFolder *folder,
-                          const gchar *folder_uri)
+                          CamelFolder *folder)
 {
 	EMailReaderInterface *interface;
 
@@ -4119,7 +4117,7 @@ e_mail_reader_set_folder (EMailReader *reader,
 	interface = E_MAIL_READER_GET_INTERFACE (reader);
 	g_return_if_fail (interface->set_folder != NULL);
 
-	interface->set_folder (reader, folder, folder_uri);
+	interface->set_folder (reader, folder);
 }
 
 /* Helper for e_mail_reader_set_folder_uri () */
@@ -4130,7 +4128,7 @@ mail_reader_got_folder_cb (gchar *folder_uri,
 {
 	EMailReader *reader = user_data;
 
-	e_mail_reader_set_folder (reader, folder, folder_uri);
+	e_mail_reader_set_folder (reader, folder);
 }
 
 void
diff --git a/mail/e-mail-reader.h b/mail/e-mail-reader.h
index d9a78f2..8076b08 100644
--- a/mail/e-mail-reader.h
+++ b/mail/e-mail-reader.h
@@ -98,8 +98,7 @@ struct _EMailReaderInterface {
 	CamelFolder *	(*get_folder)		(EMailReader *reader);
 	const gchar *	(*get_folder_uri)	(EMailReader *reader);
 	void		(*set_folder)		(EMailReader *reader,
-						 CamelFolder *folder,
-						 const gchar *folder_uri);
+						 CamelFolder *folder);
 	void		(*set_message)		(EMailReader *reader,
 						 const gchar *uid);
 	guint		(*open_selected_mail)	(EMailReader *reader);
@@ -136,8 +135,7 @@ GtkWindow *	e_mail_reader_get_window	(EMailReader *reader);
 CamelFolder *	e_mail_reader_get_folder	(EMailReader *reader);
 const gchar *	e_mail_reader_get_folder_uri	(EMailReader *reader);
 void		e_mail_reader_set_folder	(EMailReader *reader,
-						 CamelFolder *folder,
-						 const gchar *folder_uri);
+						 CamelFolder *folder);
 void		e_mail_reader_set_folder_uri	(EMailReader *reader,
 						 const gchar *folder_uri);
 void		e_mail_reader_set_message	(EMailReader *reader,
diff --git a/mail/em-folder-selector.c b/mail/em-folder-selector.c
index 5144936..ae3092d 100644
--- a/mail/em-folder-selector.c
+++ b/mail/em-folder-selector.c
@@ -139,16 +139,24 @@ emfs_create_name_changed (GtkEntry *entry, EMFolderSelector *emfs)
 }
 
 static void
-folder_selected_cb (EMFolderTree *emft, const gchar *path, const gchar *uri, guint32 flags, EMFolderSelector *emfs)
+folder_selected_cb (EMFolderTree *emft,
+                    CamelStore *store,
+                    const gchar *folder_name,
+                    CamelFolderInfoFlags flags,
+                    EMFolderSelector *emfs)
 {
 	if (emfs->name_entry)
 		emfs_create_name_changed (emfs->name_entry, emfs);
 	else
-		gtk_dialog_set_response_sensitive (GTK_DIALOG (emfs), GTK_RESPONSE_OK, TRUE);
+		gtk_dialog_set_response_sensitive (
+			GTK_DIALOG (emfs), GTK_RESPONSE_OK, TRUE);
 }
 
 static void
-folder_activated_cb (EMFolderTree *emft, const gchar *path, const gchar *uri, EMFolderSelector *emfs)
+folder_activated_cb (EMFolderTree *emft,
+                     CamelStore *store,
+                     const gchar *folder_name,
+                     EMFolderSelector *emfs)
 {
 	gtk_dialog_response ((GtkDialog *) emfs, GTK_RESPONSE_OK);
 }
diff --git a/mail/em-folder-tree.c b/mail/em-folder-tree.c
index e0ce87b..849fb87 100644
--- a/mail/em-folder-tree.c
+++ b/mail/em-folder-tree.c
@@ -672,11 +672,11 @@ folder_tree_selection_changed_cb (EMFolderTree *folder_tree,
 	GtkTreeModel *model;
 	GtkTreeIter iter;
 	GList *list;
-	guint32 flags = 0;
+	CamelStore *store = NULL;
+	CamelFolderInfoFlags flags = 0;
 	guint unread = 0;
 	guint old_unread = 0;
-	gchar *full_name = NULL;
-	gchar *uri = NULL;
+	gchar *folder_name = NULL;
 
 	list = gtk_tree_selection_get_selected_rows (selection, &model);
 
@@ -687,10 +687,11 @@ folder_tree_selection_changed_cb (EMFolderTree *folder_tree,
 
 	gtk_tree_model_get (
 		model, &iter,
-		COL_STRING_FULL_NAME, &full_name,
-		COL_STRING_URI, &uri, COL_UINT_FLAGS, &flags,
-		COL_UINT_UNREAD, &unread, COL_UINT_UNREAD_LAST_SEL,
-		&old_unread, -1);
+		COL_POINTER_CAMEL_STORE, &store,
+		COL_STRING_FULL_NAME, &folder_name,
+		COL_UINT_FLAGS, &flags,
+		COL_UINT_UNREAD, &unread,
+		COL_UINT_UNREAD_LAST_SEL, &old_unread, -1);
 
 	/* Sync unread counts to distinguish new incoming mail. */
 	if (unread != old_unread)
@@ -700,10 +701,10 @@ folder_tree_selection_changed_cb (EMFolderTree *folder_tree,
 
 exit:
 	g_signal_emit (
-		folder_tree, signals[FOLDER_SELECTED], 0, full_name, uri, flags);
+		folder_tree, signals[FOLDER_SELECTED], 0,
+		store, folder_name, flags);
 
-	g_free (full_name);
-	g_free (uri);
+	g_free (folder_name);
 
 	g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 	g_list_free (list);
@@ -972,9 +973,10 @@ folder_tree_row_activated (GtkTreeView *tree_view,
 {
 	EMFolderTreePrivate *priv;
 	GtkTreeModel *model;
-	gchar *full_name, *uri;
+	gchar *folder_name;
 	GtkTreeIter iter;
-	guint32 flags;
+	CamelStore *store;
+	CamelFolderInfoFlags flags;
 
 	priv = EM_FOLDER_TREE (tree_view)->priv;
 
@@ -987,19 +989,22 @@ folder_tree_row_activated (GtkTreeView *tree_view,
 		return;
 
 	gtk_tree_model_get (
-		model, &iter, COL_STRING_FULL_NAME, &full_name,
-		COL_STRING_URI, &uri, COL_UINT_FLAGS, &flags, -1);
+		model, &iter,
+		COL_POINTER_CAMEL_STORE, &store,
+		COL_STRING_FULL_NAME, &folder_name,
+		COL_UINT_FLAGS, &flags, -1);
 
 	folder_tree_clear_selected_list (EM_FOLDER_TREE (tree_view));
 
 	g_signal_emit (
-		tree_view, signals[FOLDER_SELECTED], 0, full_name, uri, flags);
+		tree_view, signals[FOLDER_SELECTED], 0,
+		store, folder_name, flags);
 
 	g_signal_emit (
-		tree_view, signals[FOLDER_ACTIVATED], 0, full_name, uri);
+		tree_view, signals[FOLDER_ACTIVATED], 0,
+		store, folder_name);
 
-	g_free (full_name);
-	g_free (uri);
+	g_free (folder_name);
 }
 
 static gboolean
@@ -1132,9 +1137,9 @@ folder_tree_class_init (EMFolderTreeClass *class)
 		G_SIGNAL_RUN_FIRST,
 		G_STRUCT_OFFSET (EMFolderTreeClass, folder_selected),
 		NULL, NULL,
-		e_marshal_VOID__STRING_STRING_UINT,
+		e_marshal_VOID__OBJECT_STRING_UINT,
 		G_TYPE_NONE, 3,
-		G_TYPE_STRING,
+		CAMEL_TYPE_STORE,
 		G_TYPE_STRING,
 		G_TYPE_UINT);
 
@@ -1144,9 +1149,9 @@ folder_tree_class_init (EMFolderTreeClass *class)
 		G_SIGNAL_RUN_FIRST,
 		G_STRUCT_OFFSET (EMFolderTreeClass, folder_activated),
 		NULL, NULL,
-		e_marshal_VOID__STRING_STRING,
+		e_marshal_VOID__OBJECT_STRING,
 		G_TYPE_NONE, 2,
-		G_TYPE_STRING,
+		CAMEL_TYPE_STORE,
 		G_TYPE_STRING);
 
 	signals[POPUP_EVENT] = g_signal_new (
diff --git a/mail/em-folder-tree.h b/mail/em-folder-tree.h
index c824e86..4cb032b 100644
--- a/mail/em-folder-tree.h
+++ b/mail/em-folder-tree.h
@@ -78,12 +78,12 @@ struct _EMFolderTreeClass {
 
 	/* signals */
 	void		(*folder_activated)	(EMFolderTree *folder_tree,
-						 const gchar *full_name,
-						 const gchar *uri);
+						 CamelStore *store,
+						 const gchar *folder_name);
 	void		(*folder_selected)	(EMFolderTree *folder_tree,
-						 const gchar *full_name,
-						 const gchar *uri,
-						 guint32 flags);
+						 CamelStore *store,
+						 const gchar *folder_name,
+						 CamelFolderInfoFlags flags);
 	void		(*popup_event)		(EMFolderTree *folder_tree);
 	void		(*hidden_key_event)	(EMFolderTree *emft, GdkEvent *event);
 };
diff --git a/mail/mail.error.xml b/mail/mail.error.xml
index 4b9b986..67b7e09 100644
--- a/mail/mail.error.xml
+++ b/mail/mail.error.xml
@@ -504,5 +504,11 @@ An mbox account will be created to preserve the old mbox folders. You can delete
     <_primary>Unable to retrieve message.</_primary>
     <_secondary xml:space="preserve">{0}</_secondary>
   </error>
+
+  <error id="folder-open" type="error">
+    <_primary>Failed to open folder.</_primary>
+    <_secondary>The reported error was &quot;{0}&quot;.</_secondary>
+  </error>
+
 </error-list>
 
diff --git a/modules/mail/e-mail-shell-backend.c b/modules/mail/e-mail-shell-backend.c
index 1de34a9..609e483 100644
--- a/modules/mail/e-mail-shell-backend.c
+++ b/modules/mail/e-mail-shell-backend.c
@@ -315,7 +315,7 @@ mail_shell_backend_handle_email_uri_cb (gchar *folder_uri,
 		/* FIXME Should pass in the shell module. */
 		browser = e_mail_browser_new (backend);
 		e_mail_reader_set_folder (
-			E_MAIL_READER (browser), folder, folder_uri);
+			E_MAIL_READER (browser), folder);
 		e_mail_reader_set_message (E_MAIL_READER (browser), uid);
 		gtk_widget_show (browser);
 	}
diff --git a/modules/mail/e-mail-shell-content.c b/modules/mail/e-mail-shell-content.c
index c3b6cf9..57d1663 100644
--- a/modules/mail/e-mail-shell-content.c
+++ b/modules/mail/e-mail-shell-content.c
@@ -361,8 +361,7 @@ mail_shell_content_get_window (EMailReader *reader)
 
 static void
 mail_shell_content_set_folder (EMailReader *reader,
-                               CamelFolder *folder,
-                               const gchar *folder_uri)
+                               CamelFolder *folder)
 {
 	EMailShellContentPrivate *priv;
 
@@ -372,7 +371,7 @@ mail_shell_content_set_folder (EMailReader *reader,
 	 * also implements the EMailReader interface. */
 	reader = E_MAIL_READER (priv->mail_view);
 
-	return e_mail_reader_set_folder (reader, folder, folder_uri);
+	return e_mail_reader_set_folder (reader, folder);
 }
 
 static void
diff --git a/modules/mail/e-mail-shell-view-private.c b/modules/mail/e-mail-shell-view-private.c
index ac13439..c67dc76 100644
--- a/modules/mail/e-mail-shell-view-private.c
+++ b/modules/mail/e-mail-shell-view-private.c
@@ -26,36 +26,125 @@
 
 #include "e-util/e-util-private.h"
 
+typedef struct _AsyncContext AsyncContext;
+
+struct _AsyncContext {
+	EActivity *activity;
+	EMailReader *reader;
+	EShellView *shell_view;
+};
+
+static void
+async_context_free (AsyncContext *context)
+{
+	if (context->activity != NULL)
+		g_object_unref (context->activity);
+
+	if (context->reader != NULL)
+		g_object_unref (context->reader);
+
+	if (context->shell_view != NULL)
+		g_object_unref (context->shell_view);
+
+	g_slice_free (AsyncContext, context);
+}
+
+static void
+mail_shell_view_got_folder_cb (CamelStore *store,
+                               GAsyncResult *result,
+                               AsyncContext *context)
+{
+	EAlertSink *alert_sink;
+	CamelFolder *folder;
+	GError *error = NULL;
+
+	alert_sink = e_activity_get_alert_sink (context->activity);
+
+	folder = camel_store_get_folder_finish (store, result, &error);
+
+	/* Ignore cancellations. */
+	if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
+		g_warn_if_fail (folder == NULL);
+		async_context_free (context);
+		g_error_free (error);
+		return;
+
+	} else if (error != NULL) {
+		g_warn_if_fail (folder == NULL);
+		e_alert_submit (
+			alert_sink, "folder-open",
+			error->message, NULL);
+		async_context_free (context);
+		g_error_free (error);
+		return;
+	}
+
+	e_mail_reader_set_folder (context->reader, folder);
+	e_shell_view_update_actions (context->shell_view);
+
+	g_object_unref (folder);
+
+	async_context_free (context);
+}
+
 static void
 mail_shell_view_folder_tree_selected_cb (EMailShellView *mail_shell_view,
-                                         const gchar *full_name,
-                                         const gchar *uri,
-                                         guint32 flags,
+                                         CamelStore *store,
+                                         const gchar *folder_name,
+                                         CamelFolderInfoFlags flags,
                                          EMFolderTree *folder_tree)
 {
 	EMailShellContent *mail_shell_content;
+	EShellBackend *shell_backend;
 	EShellView *shell_view;
 	EMailReader *reader;
 	EMailView *mail_view;
-	gboolean folder_selected;
+	GCancellable *cancellable;
+	EAlertSink *alert_sink;
+	AsyncContext *context;
 
 	shell_view = E_SHELL_VIEW (mail_shell_view);
+	shell_backend = e_shell_view_get_shell_backend (shell_view);
 
 	mail_shell_content = mail_shell_view->priv->mail_shell_content;
 	mail_view = e_mail_shell_content_get_mail_view (mail_shell_content);
 
 	reader = E_MAIL_READER (mail_view);
 
-	folder_selected =
-		!(flags & CAMEL_FOLDER_NOSELECT) &&
-		full_name != NULL;
+	/* Cancel any unfinished open folder operations. */
+	if (mail_shell_view->priv->opening_folder != NULL) {
+		g_cancellable_cancel (mail_shell_view->priv->opening_folder);
+		mail_shell_view->priv->opening_folder = NULL;
+	}
 
-	if (folder_selected)
-		e_mail_reader_set_folder_uri (reader, uri);
-	else
-		e_mail_reader_set_folder (reader, NULL, NULL);
+	/* If we are to clear the message list, do so immediately. */
+	if ((flags & CAMEL_FOLDER_NOSELECT) || folder_name == NULL) {
+		e_mail_reader_set_folder (reader, NULL);
+		e_shell_view_update_actions (shell_view);
+		return;
+	}
 
-	e_shell_view_update_actions (shell_view);
+	g_warn_if_fail (CAMEL_IS_STORE (store));
+
+	/* Open the selected folder asynchronously. */
+
+	context = g_slice_new0 (AsyncContext);
+	context->activity = e_activity_new ();
+	context->reader = g_object_ref (reader);
+	context->shell_view = g_object_ref (shell_view);
+
+	alert_sink = E_ALERT_SINK (mail_shell_content);
+	e_activity_set_alert_sink (context->activity, alert_sink);
+
+	cancellable = camel_operation_new ();
+	e_activity_set_cancellable (context->activity, cancellable);
+	mail_shell_view->priv->opening_folder = cancellable;
+
+	e_shell_backend_add_activity (shell_backend, context->activity);
+
+	camel_store_get_folder (
+		store, folder_name, 0, G_PRIORITY_DEFAULT, cancellable,
+		(GAsyncReadyCallback) mail_shell_view_got_folder_cb, context);
 }
 
 static gboolean
@@ -748,6 +837,12 @@ e_mail_shell_view_private_dispose (EMailShellView *mail_shell_view)
 	for (ii = 0; ii < MAIL_NUM_SEARCH_RULES; ii++)
 		DISPOSE (priv->search_rules[ii]);
 
+	if (priv->opening_folder != NULL) {
+		g_cancellable_cancel (priv->opening_folder);
+		g_object_unref (priv->opening_folder);
+		priv->opening_folder = NULL;
+	}
+
 	if (priv->search_account_all != NULL) {
 		g_object_unref (priv->search_account_all);
 		priv->search_account_all = NULL;
diff --git a/modules/mail/e-mail-shell-view-private.h b/modules/mail/e-mail-shell-view-private.h
index ac460a7..0109705 100644
--- a/modules/mail/e-mail-shell-view-private.h
+++ b/modules/mail/e-mail-shell-view-private.h
@@ -149,6 +149,9 @@ struct _EMailShellViewPrivate {
 	/* EShell::prepare-for-quit */
 	gulong prepare_for_quit_handler_id;
 
+	/* For opening the selected folder. */
+	GCancellable *opening_folder;
+
 	/* Search folders for interactive search. */
 	CamelVeeFolder *search_account_all;
 	CamelVeeFolder *search_account_current;
diff --git a/modules/mail/e-mail-shell-view.c b/modules/mail/e-mail-shell-view.c
index 4af7de5..0b0f13e 100644
--- a/modules/mail/e-mail-shell-view.c
+++ b/modules/mail/e-mail-shell-view.c
@@ -116,8 +116,7 @@ mail_shell_view_setup_search_results_folder (CamelFolder *folder,
 
 static void
 mail_shell_view_show_search_results_folder (EMailShellView *mail_shell_view,
-                                            CamelFolder *folder,
-                                            const gchar *folder_uri)
+                                            CamelFolder *folder)
 {
 	EMailShellContent *mail_shell_content;
 	GtkWidget *message_list;
@@ -132,7 +131,7 @@ mail_shell_view_show_search_results_folder (EMailShellView *mail_shell_view,
 
 	message_list_freeze (MESSAGE_LIST (message_list));
 
-	e_mail_reader_set_folder (reader, folder, folder_uri);
+	e_mail_reader_set_folder (reader, folder);
 	e_tree_set_state (E_TREE (message_list), SEARCH_RESULTS_STATE);
 
 	message_list_thaw (MESSAGE_LIST (message_list));
@@ -240,7 +239,6 @@ mail_shell_view_execute_search (EShellView *shell_view)
 	gchar *query;
 	gchar *temp;
 	gchar *tag;
-	gchar *uri;
 	const gchar *use_tag;
 	gint value;
 
@@ -519,9 +517,7 @@ all_accounts:
 		 * folder URI and let the asynchronous callbacks run
 		 * after we've already kicked off the search. */
 		folder = em_folder_tree_get_selected_folder (folder_tree);
-		uri = em_folder_tree_get_selected_uri (folder_tree);
-		e_mail_reader_set_folder (reader, folder, uri);
-		g_free (uri);
+		e_mail_reader_set_folder (reader, folder);
 
 		gtk_widget_set_sensitive (GTK_WIDGET (combo_box), TRUE);
 
@@ -606,11 +602,9 @@ all_accounts:
 		CAMEL_FOLDER (search_folder), list,
 		priv->search_account_cancel);
 
-	folder_uri = camel_folder_get_uri (CAMEL_FOLDER (search_folder));
-
 	mail_shell_view_show_search_results_folder (
 		E_MAIL_SHELL_VIEW (shell_view),
-		CAMEL_FOLDER (search_folder), folder_uri);
+		CAMEL_FOLDER (search_folder));
 
 	goto execute;
 
@@ -639,9 +633,7 @@ current_account:
 		 * folder URI and let the asynchronous callbacks run
 		 * after we've already kicked off the search. */
 		folder = em_folder_tree_get_selected_folder (folder_tree);
-		uri = em_folder_tree_get_selected_uri (folder_tree);
-		e_mail_reader_set_folder (reader, folder, uri);
-		g_free (uri);
+		e_mail_reader_set_folder (reader, folder);
 
 		gtk_widget_set_sensitive (GTK_WIDGET (combo_box), TRUE);
 
@@ -758,11 +750,9 @@ current_account:
 		CAMEL_FOLDER (search_folder), list,
 		priv->search_account_cancel);
 
-	folder_uri = camel_folder_get_uri (CAMEL_FOLDER (search_folder));
-
 	mail_shell_view_show_search_results_folder (
 		E_MAIL_SHELL_VIEW (shell_view),
-		CAMEL_FOLDER (search_folder), folder_uri);
+		CAMEL_FOLDER (search_folder));
 
 execute:
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