[evolution] Avoid em_folder_tree_get_selected_folder() in some places.

[Matthew Barnes <mbarnes src gnome org>]

commit acac6795d927185fec36dae65ee4c74e8165152c
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Jul 8 10:18:05 2012 -0400

    Avoid em_folder_tree_get_selected_folder() in some places.
    
    em_folder_tree_get_selected_folder() currently blocks, and I'm about to
    remove the function.  But there's a couple places where we just need to
    block for now, else it would require a significant rewrite.  So execute
    the em_folder_tree_get_selected_folder() logic manually in those places.

 mail/message-list.c              |   36 ++++++++++++++++++++++++++++++------
 modules/mail/e-mail-shell-view.c |   22 ++++++++++++++++++++--
 2 files changed, 50 insertions(+), 8 deletions(-)
---
diff --git a/mail/message-list.c b/mail/message-list.c
index 849fae8..997e38d 100644
--- a/mail/message-list.c
+++ b/mail/message-list.c
@@ -2447,6 +2447,7 @@ ml_tree_drag_motion (ETree *tree,
 {
 	GList *targets;
 	GdkDragAction action, actions = 0;
+	GtkWidget *source_widget;
 
 	/* If drop target is name of the account/store and not actual folder, don't allow any action */
 	if (!ml->folder) {
@@ -2454,18 +2455,41 @@ ml_tree_drag_motion (ETree *tree,
 		return TRUE;
 	}
 
+	source_widget = gtk_drag_get_source_widget (context);
+
 	/* If source widget is packed under 'tree', don't allow any action */
-	if (is_tree_widget_children (tree, gtk_drag_get_source_widget (context))) {
+	if (is_tree_widget_children (tree, source_widget)) {
 		gdk_drag_status (context, 0, time);
 		return TRUE;
 	}
 
-	if (EM_IS_FOLDER_TREE (gtk_drag_get_source_widget (context))) {
+	if (EM_IS_FOLDER_TREE (source_widget)) {
 		EMFolderTree *folder_tree;
-		CamelFolder *folder;
-
-		folder_tree = EM_FOLDER_TREE (gtk_drag_get_source_widget (context));
-		folder = em_folder_tree_get_selected_folder (folder_tree);
+		CamelFolder *folder = NULL;
+		CamelStore *selected_store;
+		gchar *selected_folder_name;
+		gboolean has_selection;
+
+		folder_tree = EM_FOLDER_TREE (source_widget);
+
+		has_selection = em_folder_tree_get_selected (
+			folder_tree, &selected_store, &selected_folder_name);
+
+		/* Sanity checks */
+		g_warn_if_fail (
+			(has_selection && selected_store != NULL) ||
+			(!has_selection && selected_store == NULL));
+		g_warn_if_fail (
+			(has_selection && selected_folder_name != NULL) ||
+			(!has_selection && selected_folder_name == NULL));
+
+		if (has_selection) {
+			folder = camel_store_get_folder_sync (
+				selected_store, selected_folder_name,
+				CAMEL_STORE_FOLDER_INFO_FAST, NULL, NULL);
+			g_object_unref (selected_store);
+			g_free (selected_folder_name);
+		}
 
 		if (folder == ml->folder) {
 			gdk_drag_status (context, 0, time);
diff --git a/modules/mail/e-mail-shell-view.c b/modules/mail/e-mail-shell-view.c
index 4d91a3d..146b89f 100644
--- a/modules/mail/e-mail-shell-view.c
+++ b/modules/mail/e-mail-shell-view.c
@@ -502,6 +502,9 @@ all_accounts:
 	 * account-wide searches still in progress. */
 	text = e_shell_searchbar_get_search_text (searchbar);
 	if (text == NULL || *text == '\0') {
+		CamelStore *selected_store;
+		gchar *selected_folder_name;
+
 		if (priv->search_account_all != NULL) {
 			g_object_unref (priv->search_account_all);
 			priv->search_account_all = NULL;
@@ -518,8 +521,14 @@ all_accounts:
 		 * avoid search conflicts, so we can't just grab the
 		 * 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);
+		em_folder_tree_get_selected (
+			folder_tree, &selected_store, &selected_folder_name);
+		folder = camel_store_get_folder_sync (
+			selected_store, selected_folder_name,
+			CAMEL_STORE_FOLDER_INFO_FAST, NULL, NULL);
 		e_mail_reader_set_folder (reader, folder);
+		g_object_unref (selected_store);
+		g_free (selected_folder_name);
 
 		gtk_widget_set_sensitive (GTK_WIDGET (combo_box), TRUE);
 
@@ -606,6 +615,9 @@ current_account:
 	 * account-wide searches still in progress. */
 	text = e_shell_searchbar_get_search_text (searchbar);
 	if (text == NULL || *text == '\0') {
+		CamelStore *selected_store;
+		gchar *selected_folder_name;
+
 		if (priv->search_account_current != NULL) {
 			g_object_unref (priv->search_account_current);
 			priv->search_account_current = NULL;
@@ -622,8 +634,14 @@ current_account:
 		 * avoid search conflicts, so we can't just grab the
 		 * 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);
+		em_folder_tree_get_selected (
+			folder_tree, &selected_store, &selected_folder_name);
+		folder = camel_store_get_folder_sync (
+			selected_store, selected_folder_name,
+			CAMEL_STORE_FOLDER_INFO_FAST, NULL, NULL);
 		e_mail_reader_set_folder (reader, folder);
+		g_object_unref (selected_store);
+		g_free (selected_folder_name);
 
 		gtk_widget_set_sensitive (GTK_WIDGET (combo_box), TRUE);