From 4c7f465696dea37fa7f8d483910c3a1e249d62f4 Mon Sep 17 00:00:00 2001
From: Milan Crha <mcrha@redhat.com>
Date: Wed, 1 Jun 2011 16:13:03 +0200
Subject: Bug #578245 - View settings for threads getting lost

---
 mail/mail-config.c  |  8 ++++++++
 mail/message-list.c | 47 ++++++++++++++++++-----------------------------
 2 files changed, 26 insertions(+), 29 deletions(-)

diff --git a/mail/mail-config.c b/mail/mail-config.c
index 02d6f68cfe..2e67281670 100644
--- a/mail/mail-config.c
+++ b/mail/mail-config.c
@@ -240,6 +240,14 @@ mail_config_folder_to_cachename (CamelFolder *folder, const gchar *prefix)
 	const gchar *config_dir;
 
 	config_dir = mail_session_get_config_dir ();
+
+	basename = g_build_filename (config_dir, "folders", NULL);
+	if (!g_file_test (basename, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
+		/* create the folder if does not exist */
+		g_mkdir_with_parents (basename, 0700);
+	}
+	g_free (basename);
+
 	folder_uri = e_mail_folder_uri_from_folder (folder);
 	e_filename_make_safe (folder_uri);
 	basename = g_strdup_printf ("%s%s", prefix, folder_uri);
diff --git a/mail/message-list.c b/mail/message-list.c
index 5bcef28cfc..be7dda6052 100644
--- a/mail/message-list.c
+++ b/mail/message-list.c
@@ -2051,10 +2051,10 @@ save_tree_state (MessageList *ml)
 {
 	gchar *filename;
 
-	if (ml->folder == NULL)
+	if (ml->folder == NULL || (ml->search && *ml->search))
 		return;
 
-	filename = mail_config_folder_to_cachename(ml->folder, "et-expanded-");
+	filename = mail_config_folder_to_cachename (ml->folder, "et-expanded-");
 	e_tree_save_expanded_state (E_TREE (ml), filename);
 	g_free (filename);
 
@@ -2069,7 +2069,8 @@ load_tree_state (MessageList *ml, xmlDoc *expand_state)
 
 	if (expand_state) {
 		e_tree_load_expanded_state_xml (E_TREE (ml), expand_state);
-	} else {
+	} else if (!ml->search || !*ml->search) {
+		/* only when not searching */
 		gchar *filename;
 
 		filename = mail_config_folder_to_cachename (ml->folder, "et-expanded-");
@@ -2092,31 +2093,16 @@ message_list_setup_etree (MessageList *message_list, gboolean outgoing)
 	/* build the spec based on the folder, and possibly from a saved file */
 	/* otherwise, leave default */
 	if (message_list->folder) {
-		CamelStore *parent_store;
-		gchar *path;
-		gchar *name;
 		gint data = 1;
-		struct stat st;
 		ETableItem *item;
 
 		item = e_tree_get_item (E_TREE (message_list));
 
 		g_object_set (message_list, "uniform_row_height", TRUE, NULL);
-
-		parent_store = camel_folder_get_parent_store (message_list->folder);
-		name = camel_service_get_name (CAMEL_SERVICE (parent_store), TRUE);
-		d(printf ("folder name is '%s'\n", name));
-
-		path = mail_config_folder_to_cachename (message_list->folder, "et-expanded-");
 		g_object_set_data (G_OBJECT (((GnomeCanvasItem *) item)->canvas), "freeze-cursor", &data);
 
-		if (path && g_stat (path, &st) == 0 && st.st_size > 0 && S_ISREG (st.st_mode)) {
-			/* build based on saved file */
-			e_tree_load_expanded_state (E_TREE (message_list), path);
-		}
-		g_free (path);
-
-		g_free (name);
+		/* build based on saved file */
+		load_tree_state (message_list, NULL);
 	}
 }
 
@@ -4627,6 +4613,7 @@ regen_list_done (struct _regen_list_msg *m)
 {
 	ETree *tree;
 	GCancellable *cancellable;
+	gboolean searching;
 
 	cancellable = e_activity_get_cancellable (m->base.activity);
 
@@ -4649,6 +4636,13 @@ regen_list_done (struct _regen_list_msg *m)
 
 	g_signal_handlers_block_by_func (e_tree_get_table_adapter (tree), ml_tree_sorting_changed, m->ml);
 
+	if (m->ml->search && m->ml->search != m->search)
+		g_free (m->ml->search);
+	m->ml->search = m->search;
+	m->search = NULL;
+
+	searching = m->ml->search && *m->ml->search;
+
 	if (m->dotree) {
 		gboolean forcing_expand_state = m->ml->expand_all || m->ml->collapse_all;
 
@@ -4661,8 +4655,8 @@ regen_list_done (struct _regen_list_msg *m)
 			}
 		}
 
-		if (forcing_expand_state)
-			e_tree_force_expanded_state (tree, m->ml->expand_all ? 1 : -1);
+		if (forcing_expand_state || searching)
+			e_tree_force_expanded_state (tree, (m->ml->expand_all || searching) ? 1 : -1);
 
 		build_tree (m->ml, m->tree, m->changes);
 		if (m->ml->thread_tree)
@@ -4670,8 +4664,8 @@ regen_list_done (struct _regen_list_msg *m)
 		m->ml->thread_tree = m->tree;
 		m->tree = NULL;
 
-		if (forcing_expand_state) {
-			if (m->ml->folder != NULL && tree != NULL)
+		if (forcing_expand_state || searching) {
+			if (m->ml->folder != NULL && tree != NULL && !searching)
 				save_tree_state (m->ml);
 			/* do not forget to set this back to use the default value... */
 			e_tree_force_expanded_state (tree, 0);
@@ -4683,11 +4677,6 @@ regen_list_done (struct _regen_list_msg *m)
 	} else
 		build_flat (m->ml, m->summary, m->changes);
 
-	if (m->ml->search && m->ml->search != m->search)
-		g_free (m->ml->search);
-	m->ml->search = m->search;
-	m->search = NULL;
-
 	g_mutex_lock (m->ml->regen_lock);
 	m->ml->regen = g_list_remove (m->ml->regen, m);
 	g_mutex_unlock (m->ml->regen_lock);
-- 
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