* Fix some detected memory leaks
[modest] / src / widgets / modest-folder-view.c
index 5acdcba..46f87cb 100644 (file)
 
 #include <glib/gi18n.h>
 #include <string.h>
-
+#include <gdk/gdkkeysyms.h>
 #include <tny-account-store-view.h>
 #include <tny-gtk-account-list-model.h>
 #include <tny-gtk-folder-store-tree-model.h>
 #include <tny-gtk-header-list-model.h>
 #include <tny-folder.h>
-#include <tny-folder-monitor.h>
 #include <tny-account-store.h>
 #include <tny-account.h>
 #include <tny-folder.h>
@@ -49,6 +48,9 @@
 #include <modest-runtime.h>
 #include "modest-folder-view.h"
 #include <modest-dnd.h>
+#include <modest-platform.h>
+#include <modest-account-mgr-helpers.h>
+#include <modest-widget-memory.h>
 
 /* 'private'/'protected' functions */
 static void modest_folder_view_class_init  (ModestFolderViewClass *klass);
@@ -64,8 +66,6 @@ static void         modest_folder_view_set_account_store (TnyAccountStoreView *s
 static gboolean     update_model           (ModestFolderView *self,
                                            ModestTnyAccountStore *account_store);
 
-static gboolean     update_model_empty     (ModestFolderView *self);
-
 static void         on_selection_changed   (GtkTreeSelection *sel, gpointer data);
 
 static void         on_account_update      (TnyAccountStore *account_store, 
@@ -80,6 +80,19 @@ static gint         cmp_rows               (GtkTreeModel *tree_model,
                                            GtkTreeIter *iter2,
                                            gpointer user_data);
 
+static gboolean     filter_row             (GtkTreeModel *model,
+                                           GtkTreeIter *iter,
+                                           gpointer data);
+
+static gboolean     on_key_pressed         (GtkWidget *self,
+                                           GdkEventKey *event,
+                                           gpointer user_data);
+
+static void         on_configuration_key_changed         (ModestConf* conf, 
+                                                         const gchar *key, 
+                                                         ModestConfEvent event, 
+                                                         ModestFolderView *self);
+
 /* DnD functions */
 static void         on_drag_data_get       (GtkWidget *widget, 
                                            GdkDragContext *context, 
@@ -110,26 +123,26 @@ static void         setup_drag_and_drop    (GtkTreeView *self);
 
 enum {
        FOLDER_SELECTION_CHANGED_SIGNAL,
-       FOLDER_XFER_SIGNAL,
+       FOLDER_DISPLAY_NAME_CHANGED_SIGNAL,
        LAST_SIGNAL
 };
 
 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
 struct _ModestFolderViewPrivate {
-       TnyAccountStore     *account_store;
-       TnyFolder           *cur_folder;
-       GtkTreeRowReference *cur_row;
-
-       gulong               account_update_signal;
-       gulong               changed_signal;
-       gulong               accounts_reloaded_signal;
-       GMutex              *lock;
+       TnyAccountStore      *account_store;
+       TnyFolderStore       *cur_folder_store;
+
+       gulong                account_update_signal;
+       gulong                changed_signal;
+       gulong                accounts_reloaded_signal;
        
-       GtkTreeSelection    *cur_selection;
-       TnyFolderStoreQuery *query;
-       guint                timer_expander;
+       GtkTreeSelection     *cur_selection;
+       TnyFolderStoreQuery  *query;
+       guint                 timer_expander;
 
-       TnyFolderMonitor    *monitor;
+       gchar                *local_account_name;
+       gchar                *visible_account_id;
+       ModestFolderViewStyle style;
 };
 #define MODEST_FOLDER_VIEW_GET_PRIVATE(o)                      \
        (G_TYPE_INSTANCE_GET_PRIVATE((o),                       \
@@ -198,26 +211,22 @@ modest_folder_view_class_init (ModestFolderViewClass *klass)
                              modest_marshal_VOID__POINTER_BOOLEAN,
                              G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_BOOLEAN);
 
-       /**
-        * ModestFolderView::folder-moved
-        * @self: the #MailOperation that emits the signal
-        * @folder: the #TnyFolder that is going to be moved
-        * @parent: then #TnyFolderStore that is going to be the new parent
-        * @done: indicates if the folder move was correctly completed or not
-        * @user_data: user data set when the signal handler was connected
-        *
-        * Emitted when a the user wants to move a folder through a
-        * drag and drop action
+       /*
+        * This signal is emitted whenever the currently selected
+        * folder display name is computed. Note that the name could
+        * be different to the folder name, because we could append
+        * the unread messages count to the folder name to build the
+        * folder display name
         */
-       signals[FOLDER_XFER_SIGNAL] = 
-               g_signal_new ("folder_xfer",
+       signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL] = 
+               g_signal_new ("folder-display-name-changed",
                              G_TYPE_FROM_CLASS (gobject_class),
                              G_SIGNAL_RUN_FIRST,
-                             G_STRUCT_OFFSET (ModestFolderViewClass, folder_xfer),
+                             G_STRUCT_OFFSET (ModestFolderViewClass,
+                                              folder_display_name_changed),
                              NULL, NULL,
-                             modest_marshal_VOID__POINTER_POINTER_BOOL_POINTER,
-                             G_TYPE_NONE, 4, 
-                             G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_BOOLEAN, G_TYPE_POINTER);
+                             g_cclosure_marshal_VOID__STRING,
+                             G_TYPE_NONE, 1, G_TYPE_STRING);
 }
 
 
@@ -226,188 +235,253 @@ static void
 text_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
                 GtkTreeModel *tree_model,  GtkTreeIter *iter,  gpointer data)
 {
+       ModestFolderViewPrivate *priv;
        GObject *rendobj;
        gchar *fname = NULL;
-       gint unread;
+       gint unread, all;
        TnyFolderType type;
-       TnyFolder *folder = NULL;
+       GObject *instance = NULL;
        
        g_return_if_fail (column);
        g_return_if_fail (tree_model);
 
        gtk_tree_model_get (tree_model, iter,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_ALL_COLUMN, &all,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
                            -1);
        rendobj = G_OBJECT(renderer);
  
        if (!fname)
                return;
+
+       if (!instance) {
+               g_free (fname);
+               return;
+       }
+
        
-       if (folder && type != TNY_FOLDER_TYPE_ROOT) { /* FIXME: tnymail bug? crashes with root folders */
-               if (modest_tny_folder_is_local_folder (folder)) {
+       priv =  MODEST_FOLDER_VIEW_GET_PRIVATE (data);
+       
+       if (type != TNY_FOLDER_TYPE_ROOT) {
+               gint number;
+
+               if (modest_tny_folder_is_local_folder (TNY_FOLDER (instance))) {
                        TnyFolderType type;
-                       type = modest_tny_folder_get_local_folder_type (folder);
+                       type = modest_tny_folder_get_local_folder_type (TNY_FOLDER (instance));
                        if (type != TNY_FOLDER_TYPE_UNKNOWN) {
                                g_free (fname);
                                fname = g_strdup(modest_local_folder_info_get_type_display_name (type));
                        }
                }
-       } else if (folder && type == TNY_FOLDER_TYPE_ROOT) {
-               if (strcmp (fname, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0) {/* FIXME: hack */
-                       g_free (fname);
-                       fname = g_strdup (MODEST_LOCAL_FOLDERS_DISPLAY_NAME);
-               }
-       }
-                       
-       if (unread > 0) {
-               gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
-               g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
-               g_free (folder_title);
-       } else 
-               g_object_set (rendobj,"text", fname, "weight", 400, NULL);
-               
-       g_free (fname);
-       if (folder) g_object_unref (G_OBJECT (folder));
-}
 
+               /* Select the number to show */
+               if ((type == TNY_FOLDER_TYPE_DRAFTS) || (type == TNY_FOLDER_TYPE_OUTBOX))
+                       number = all;
+               else
+                       number = unread;
+
+               /* Use bold font style if there are unread messages */
+               if (unread > 0) {
+                       gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
+                       g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
+                       if (G_OBJECT (priv->cur_folder_store) == instance)
+                               g_signal_emit (G_OBJECT(data),
+                                              signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
+                                              folder_title);
+                       g_free (folder_title);
+               } else {
+                       g_object_set (rendobj,"text", fname, "weight", 400, NULL);
+                       if (G_OBJECT (priv->cur_folder_store) == instance)
+                               g_signal_emit (G_OBJECT(data),
+                                              signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
+                                              fname);
+               }
 
-static GdkPixbuf*
-get_cached_icon (const gchar *name)
-{
-       GError *err = NULL;
-       gpointer pixbuf;
-       gpointer orig_key;
-       static GHashTable *icon_cache = NULL;
-       
-       g_return_val_if_fail (name, NULL);
+       } else {
+               const gchar *account_name = NULL;
+               const gchar *account_id = NULL;
 
-       if (G_UNLIKELY(!icon_cache))
-               icon_cache = modest_cache_mgr_get_cache (modest_runtime_get_cache_mgr(),
-                                                        MODEST_CACHE_MGR_CACHE_TYPE_PIXBUF);
-       
-       if (!icon_cache || !g_hash_table_lookup_extended (icon_cache, name, &orig_key, &pixbuf)) {
-               pixbuf = (gpointer)gdk_pixbuf_new_from_file (name, &err);
-               if (!pixbuf) {
-                       g_printerr ("modest: error in icon factory while loading '%s': %s\n",
-                                   name, err->message);
-                       g_error_free (err);
+               /* If it's a server account */
+               account_id = tny_account_get_id (TNY_ACCOUNT (instance));
+               if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
+                       account_name = priv->local_account_name;
+               } else {
+                       if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
+                               /* TODO: get MMC card name */
+                       } else {
+                               account_name = fname;
+                       }
                }
-               /* if we cannot find it, we still insert (if we have a cache), so we get the error
-                * only once */
-               if (icon_cache)
-                       g_hash_table_insert (icon_cache, g_strdup(name),(gpointer)pixbuf);
+
+               /* Notify display name observers */
+               if (G_OBJECT (priv->cur_folder_store) == instance)
+                       g_signal_emit (G_OBJECT(data),
+                                      signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
+                                      account_name);
+
+               /* Use bold font style */
+               g_object_set (rendobj,"text", account_name, "weight", 800, NULL);
        }
-       return GDK_PIXBUF(pixbuf);
+       
+       g_object_unref (G_OBJECT (instance));
+       g_free (fname);
 }
 
 
+
 static void
 icon_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
                 GtkTreeModel *tree_model,  GtkTreeIter *iter, gpointer data)
 {
-       GObject *rendobj;
-       GdkPixbuf *pixbuf;
+       GObject *rendobj = NULL, *instance = NULL;
+       GdkPixbuf *pixbuf = NULL;
        TnyFolderType type;
        gchar *fname = NULL;
+       const gchar *account_id = NULL;
        gint unread;
        
        rendobj = G_OBJECT(renderer);
        gtk_tree_model_get (tree_model, iter,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread, 
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
                            -1);
-       rendobj = G_OBJECT(renderer);
+
+       if (!fname)
+               return;
+
+       if (!instance) {
+               g_free (fname);
+               return;
+       }
        
        if (type == TNY_FOLDER_TYPE_NORMAL || type == TNY_FOLDER_TYPE_UNKNOWN) {
                type = modest_tny_folder_guess_folder_type_from_name (fname);
        }
-       g_free (fname);
 
        switch (type) {
        case TNY_FOLDER_TYPE_ROOT:
-               pixbuf = get_cached_icon (MODEST_FOLDER_ICON_ACCOUNT);
+               account_id = tny_account_get_id (TNY_ACCOUNT (instance));
+               if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
+                       pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_LOCAL_FOLDERS);
+               } else {
+                       if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
+                               pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_MMC);
+                       else
+                               pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_ACCOUNT);
+               }
                 break;
        case TNY_FOLDER_TYPE_INBOX:
-                pixbuf = get_cached_icon (MODEST_FOLDER_ICON_INBOX);
+                pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_INBOX);
                 break;
         case TNY_FOLDER_TYPE_OUTBOX:
-                pixbuf = get_cached_icon (MODEST_FOLDER_ICON_OUTBOX);
+                pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_OUTBOX);
                 break;
         case TNY_FOLDER_TYPE_JUNK:
-                pixbuf = get_cached_icon (MODEST_FOLDER_ICON_JUNK);
+                pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_JUNK);
                 break;
         case TNY_FOLDER_TYPE_SENT:
-                pixbuf = get_cached_icon (MODEST_FOLDER_ICON_SENT);
+                pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_SENT);
                 break;
        case TNY_FOLDER_TYPE_TRASH:
-               pixbuf = get_cached_icon (MODEST_FOLDER_ICON_TRASH);
+               pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_TRASH);
                 break;
        case TNY_FOLDER_TYPE_DRAFTS:
-               pixbuf = get_cached_icon (MODEST_FOLDER_ICON_DRAFTS);
-                break;
-       case TNY_FOLDER_TYPE_NOTES:
-               pixbuf = get_cached_icon (MODEST_FOLDER_ICON_NOTES);
-                break;
-       case TNY_FOLDER_TYPE_CALENDAR:
-               pixbuf = get_cached_icon (MODEST_FOLDER_ICON_CALENDAR);
-                break;
-       case TNY_FOLDER_TYPE_CONTACTS:
-                pixbuf = get_cached_icon (MODEST_FOLDER_ICON_CONTACTS);
+               pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_DRAFTS);
                 break;
        case TNY_FOLDER_TYPE_NORMAL:
         default:
-                pixbuf = get_cached_icon (MODEST_FOLDER_ICON_NORMAL);
+                pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_NORMAL);
                break;
         }
+       g_object_unref (G_OBJECT (instance));
+       g_free (fname);
+
+       /* Set pixbuf */
        g_object_set (rendobj, "pixbuf", pixbuf, NULL);
 }
 
 static void
-modest_folder_view_init (ModestFolderView *obj)
+add_columns (GtkWidget *treeview)
 {
-       ModestFolderViewPrivate *priv;
        GtkTreeViewColumn *column;
        GtkCellRenderer *renderer;
        GtkTreeSelection *sel;
-       
-       priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
-       
-       priv->timer_expander = 0;
-       priv->account_store  = NULL;
-       priv->cur_folder     = NULL;
-       priv->cur_row        = NULL;
-       priv->query          = NULL;
-       priv->monitor        = NULL;
-
-       priv->lock           = g_mutex_new ();
 
+       /* Create column */
        column = gtk_tree_view_column_new ();   
-       gtk_tree_view_append_column (GTK_TREE_VIEW(obj),column);
        
+       /* Set icon and text render function */
        renderer = gtk_cell_renderer_pixbuf_new();
        gtk_tree_view_column_pack_start (column, renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func(column, renderer,
-                                               icon_cell_data, NULL, NULL);
+                                               icon_cell_data, treeview, NULL);
        
        renderer = gtk_cell_renderer_text_new();
        gtk_tree_view_column_pack_start (column, renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func(column, renderer,
-                                               text_cell_data, NULL, NULL);
+                                               text_cell_data, treeview, NULL);
        
-       sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
+       /* Set selection mode */
+       sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(treeview));
        gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 
+       /* Set treeview appearance */
        gtk_tree_view_column_set_spacing (column, 2);
        gtk_tree_view_column_set_resizable (column, TRUE);
        gtk_tree_view_column_set_fixed_width (column, TRUE);            
-       gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(obj), FALSE);
-       gtk_tree_view_set_enable_search     (GTK_TREE_VIEW(obj), FALSE);
+       gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(treeview), FALSE);
+       gtk_tree_view_set_enable_search (GTK_TREE_VIEW(treeview), FALSE);
+
+       /* Add column */
+       gtk_tree_view_append_column (GTK_TREE_VIEW(treeview),column);
+}
+
+static void
+modest_folder_view_init (ModestFolderView *obj)
+{
+       ModestFolderViewPrivate *priv;
+       ModestConf *conf;
+       
+       priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
+       
+       priv->timer_expander = 0;
+       priv->account_store  = NULL;
+       priv->query          = NULL;
+       priv->style          = MODEST_FOLDER_VIEW_STYLE_SHOW_ALL;
+       priv->cur_folder_store   = NULL;
+       priv->visible_account_id = NULL;
 
+       /* Initialize the local account name */
+       conf = modest_runtime_get_conf();
+       priv->local_account_name = modest_conf_get_string (conf, MODEST_CONF_DEVICE_NAME, NULL);
+
+       /* Build treeview */
+       add_columns (GTK_WIDGET (obj));
+
+       /* Setup drag and drop */
        setup_drag_and_drop (GTK_TREE_VIEW(obj));
+
+       /* Restore conf */
+       modest_widget_memory_restore (conf, G_OBJECT (obj), MODEST_CONF_FOLDER_VIEW_KEY);
+
+       /* Connect signals */
+       g_signal_connect (G_OBJECT (obj), 
+                         "key-press-event", 
+                         G_CALLBACK (on_key_pressed), NULL);
+
+       /*
+        * Track changes in the local account name (in the device it
+        * will be the device name)
+        */
+       g_signal_connect (G_OBJECT(conf), 
+                         "key_changed",
+                         G_CALLBACK(on_configuration_key_changed), obj);
+
 }
 
 static void
@@ -444,11 +518,6 @@ modest_folder_view_finalize (GObject *obj)
                priv->account_store = NULL;
        }
 
-       if (priv->lock) {
-               g_mutex_free (priv->lock);
-               priv->lock = NULL;
-       }
-
        if (priv->query) {
                g_object_unref (G_OBJECT (priv->query));
                priv->query = NULL;
@@ -457,6 +526,9 @@ modest_folder_view_finalize (GObject *obj)
        sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
        if (sel)
                g_signal_handler_disconnect (G_OBJECT(sel), priv->changed_signal);
+
+       g_free (priv->local_account_name);
+       g_free (priv->visible_account_id);
        
        G_OBJECT_CLASS(parent_class)->finalize (obj);
 }
@@ -551,39 +623,16 @@ modest_folder_view_new (TnyFolderStoreQuery *query)
        self = G_OBJECT (g_object_new (MODEST_TYPE_FOLDER_VIEW, NULL));
        priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 
-       priv->query = g_object_ref (query);
+       if (query)
+               priv->query = g_object_ref (query);
        
        sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
        priv->changed_signal = g_signal_connect (sel, "changed",
                                                 G_CALLBACK (on_selection_changed), self);
-       return GTK_WIDGET(self);
-}
-
 
-static gboolean
-update_model_empty (ModestFolderView *self)
-{
-       ModestFolderViewPrivate *priv;
-       
-       g_return_val_if_fail (self, FALSE);
-       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
-
-       g_mutex_lock (priv->lock);
-       {
-               if (priv->monitor) {
-                       tny_folder_monitor_stop (priv->monitor);
-                       g_object_unref(G_OBJECT(priv->monitor));
-                       priv->monitor = NULL;
-               }
-       }
-       g_mutex_unlock (priv->lock);
-       
-       g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
-                      NULL, TRUE);
-       return TRUE;
+       return GTK_WIDGET(self);
 }
 
-
 /* this feels dirty; any other way to expand all the root items? */
 static void
 expand_root_items (ModestFolderView *self)
@@ -598,20 +647,63 @@ expand_root_items (ModestFolderView *self)
        gtk_tree_path_free (path);
 }
 
+/*
+ * We use this function to implement the
+ * MODEST_FOLDER_VIEW_STYLE_SHOW_ONE style. We only show the default
+ * account in this case
+ */
+static gboolean 
+filter_row (GtkTreeModel *model,
+           GtkTreeIter *iter,
+           gpointer data)
+{
+       gboolean retval = TRUE;
+       gint type;
+       GObject *instance = NULL;
+
+       gtk_tree_model_get (model, iter,
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
+                           -1);
+
+       if (type == TNY_FOLDER_TYPE_ROOT) {
+               TnyAccount *acc;
+               const gchar *account_id;
+
+               acc = TNY_ACCOUNT (instance);
+               account_id = tny_account_get_id (acc);
+
+               if (strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID) &&
+                   strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) { 
+                       ModestFolderViewPrivate *priv;
+                       
+                       /* Show only the visible account id */
+                       priv = MODEST_FOLDER_VIEW_GET_PRIVATE (data);
+                       if (priv->visible_account_id && strcmp (account_id, priv->visible_account_id))
+                               retval = FALSE;
+               }
+       }
+
+       g_object_unref (instance);
+
+       return retval;
+}
+
 static gboolean
 update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 {
        ModestFolderViewPrivate *priv;
-
        TnyList          *account_list;
-       GtkTreeModel     *model, *sortable;
+       GtkTreeModel     *model;
 
        g_return_val_if_fail (account_store, FALSE);
 
        priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
        
        /* Notify that there is no folder selected */
-       update_model_empty (self);
+       g_signal_emit (G_OBJECT(self), 
+                      signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
+                      NULL, TRUE);
        
        /* FIXME: the local accounts are not shown when the query
           selects only the subscribed folders. */
@@ -623,6 +715,8 @@ update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
                                        account_list,
                                        TNY_ACCOUNT_STORE_STORE_ACCOUNTS);      
        if (account_list) {
+               GtkTreeModel *filter_model = NULL, *sortable = NULL;
+
                sortable = gtk_tree_model_sort_new_with_model (model);
                gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
                                                      TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, 
@@ -631,8 +725,18 @@ update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
                                                 TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
                                                 cmp_rows, NULL, NULL);
 
+               /* Create filter model */
+               if (priv->style == MODEST_FOLDER_VIEW_STYLE_SHOW_ONE) {
+                       filter_model = gtk_tree_model_filter_new (sortable, NULL);
+                       gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (filter_model),
+                                                               filter_row,
+                                                               self,
+                                                               NULL);
+               }
+
                /* Set new model */
-               gtk_tree_view_set_model (GTK_TREE_VIEW(self), sortable);
+               gtk_tree_view_set_model (GTK_TREE_VIEW(self), 
+                                        (filter_model) ? filter_model : sortable);
                expand_root_items (self); /* expand all account folders */
                g_object_unref (account_list);
        }
@@ -644,10 +748,9 @@ update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 static void
 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 {
-       GtkTreeModel            *model_sort, *model;
-       TnyFolder               *folder = NULL;
-       GtkTreeIter             iter, iter_sort;
-       GtkTreePath            *path;
+       GtkTreeModel            *model;
+       TnyFolderStore          *folder = NULL;
+       GtkTreeIter             iter;
        ModestFolderView        *tree_view;
        ModestFolderViewPrivate *priv;
        gint                    type;
@@ -659,18 +762,18 @@ on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
        priv->cur_selection = sel;
        
        /* folder was _un_selected if true */
-       if (!gtk_tree_selection_get_selected (sel, &model_sort, &iter_sort)) {
-               priv->cur_folder = NULL; /* FIXME: need this? */
-               gtk_tree_row_reference_free (priv->cur_row);
-               priv->cur_row = NULL;
-               return; 
+       if (!gtk_tree_selection_get_selected (sel, &model, &iter)) {
+               if (priv->cur_folder_store)
+                       g_object_unref (priv->cur_folder_store);
+               priv->cur_folder_store = NULL;
+
+               /* Notify the display name observers */
+               g_signal_emit (G_OBJECT(user_data),
+                              signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
+                              NULL);
+               return;
        }
 
-       model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
-       gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
-                                                       &iter,
-                                                       &iter_sort);
-
        tree_view = MODEST_FOLDER_VIEW (user_data);
 
        gtk_tree_model_get (model, &iter,
@@ -678,36 +781,29 @@ on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
                            -1);
 
-       if (type == TNY_FOLDER_TYPE_ROOT) {
+       /* If the folder is the same do not notify */
+       if (priv->cur_folder_store == folder) {
                g_object_unref (folder);
                return;
        }
        
        /* Current folder was unselected */
-       g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
-                      priv->cur_folder, FALSE);
-
-       if (priv->cur_row) {
-/*             tny_folder_sync (priv->cur_folder, TRUE, NULL); /\* FIXME *\/ */
-               gtk_tree_row_reference_free (priv->cur_row);
+       if (priv->cur_folder_store) {
+               g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
+                              priv->cur_folder_store, FALSE);
+               g_object_unref (priv->cur_folder_store);
        }
 
        /* New current references */
-       path = gtk_tree_model_get_path (model_sort, &iter_sort);
-       priv->cur_folder = folder;
-       priv->cur_row = gtk_tree_row_reference_new (model_sort, path);
-
-       /* Frees */
-       gtk_tree_path_free (path);
-       g_object_unref (G_OBJECT (folder));
+       priv->cur_folder_store = folder;
 
        /* New folder has been selected */
-       g_signal_emit (G_OBJECT(tree_view), 
-                      signals[FOLDER_SELECTION_CHANGED_SIGNAL], 
-                      0, folder, TRUE); 
+       g_signal_emit (G_OBJECT(tree_view),
+                      signals[FOLDER_SELECTION_CHANGED_SIGNAL],
+                      0, folder, TRUE);
 }
 
-TnyFolder *
+TnyFolderStore *
 modest_folder_view_get_selected (ModestFolderView *self)
 {
        ModestFolderViewPrivate *priv;
@@ -715,96 +811,18 @@ modest_folder_view_get_selected (ModestFolderView *self)
        g_return_val_if_fail (self, NULL);
        
        priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
-       if (priv->cur_folder)
-               g_object_ref (priv->cur_folder);
+       if (priv->cur_folder_store)
+               g_object_ref (priv->cur_folder_store);
 
-       return priv->cur_folder;
-}
-
-static gboolean
-get_model_iter (ModestFolderView *self, 
-               GtkTreeModel **model, 
-               GtkTreeIter *iter)
-{
-       GtkTreeModel *model_sort;
-       GtkTreeIter iter_sort;
-       GtkTreePath *path;
-       ModestFolderViewPrivate *priv;
-
-       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
-
-       if (!priv->cur_folder)
-               return FALSE;
-
-       if (!gtk_tree_row_reference_valid (priv->cur_row))
-               return FALSE;
-
-       model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
-       *model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
-
-       /* Get path to retrieve iter */
-       path = gtk_tree_row_reference_get_path (priv->cur_row);
-       if (!gtk_tree_model_get_iter (model_sort, &iter_sort, path))
-               return FALSE;
-
-       gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
-                                                       iter,
-                                                       &iter_sort);
-       return TRUE;
-}
-
-gboolean 
-modest_folder_view_rename (ModestFolderView *self)
-{
-       GtkTreeModel *model;
-       GtkTreeIter iter;
-       ModestFolderViewPrivate *priv;
-
-       g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
-
-       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
-
-       if (!get_model_iter (self, &model, &iter))
-               return FALSE;
-
-       /* Set new name */
-       gtk_tree_store_set (GTK_TREE_STORE (model), &iter,
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
-                           tny_folder_get_name (priv->cur_folder), -1);
-
-       /* Invalidate selection */
-       g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
-                      priv->cur_folder, TRUE);
-
-       return TRUE;
-}
-
-gboolean 
-modest_folder_view_add_subfolder (ModestFolderView *self, TnyFolder *folder)
-{
-       GtkTreeModel *model;
-       GtkTreeIter iter, child;
-
-       g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
-
-       if (!get_model_iter (self, &model, &iter))
-               return FALSE;
-
-       /* Append a new child to the folder */
-       gtk_tree_store_append (GTK_TREE_STORE (model), &child, &iter);
-       gtk_tree_store_set (GTK_TREE_STORE (model), &child,
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
-                           tny_folder_get_name (TNY_FOLDER (folder)),
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN,
-                           tny_folder_get_unread_count (TNY_FOLDER (folder)),
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN,
-                           tny_folder_get_folder_type (TNY_FOLDER (folder)),
-                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
-                           folder, -1);
-
-       return TRUE;
+       return priv->cur_folder_store;
 }
 
+/*
+ * This function orders the mail accounts following the next rules
+ * 1st - remote accounts
+ * 2nd - local account
+ * 3rd - MMC account
+ */
 static gint
 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
          gpointer user_data)
@@ -813,7 +831,7 @@ cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
        gchar         *name1, *name2;
        TnyFolderType type;
        TnyFolder     *folder1, *folder2;
-       
+
        gtk_tree_model_get (tree_model, iter1,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name1,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
@@ -824,25 +842,35 @@ cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
                            TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder2,
                            -1);
 
-       /* local_folders should be the last one */
+       /* Order must be: Remote accounts -> Local account -> MMC account */
        if (type == TNY_FOLDER_TYPE_ROOT) {
-               /* the account name is also the name of the root folder
-                * in case of local folders */
-               if (name1 && strcmp (name1, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
+               const gchar *account_id = tny_account_get_id (TNY_ACCOUNT (folder1));
+               const gchar *account_id2 = tny_account_get_id (TNY_ACCOUNT (folder2));
+
+               if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
                        cmp = +1;
-               else if (name2 && strcmp (name2, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
-                       cmp = -1;
-               else 
-                       cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
+               else {
+                       if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
+                               if (!strcmp (account_id2, MODEST_MMC_ACCOUNT_ID))
+                                       cmp = -1;
+                               else
+                                       cmp = +1;
+                       } else {
+                               if (!strcmp (account_id2, MODEST_LOCAL_FOLDERS_ACCOUNT_ID) ||
+                                   !strcmp (account_id2, MODEST_MMC_ACCOUNT_ID))
+                                       cmp = -1;
+                               else
+                                       cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
+                       }
+               }
        } else 
                cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
-
        
        if (folder1)
                g_object_unref(G_OBJECT(folder1));
        if (folder2)
                g_object_unref(G_OBJECT(folder2));
-       
+
        g_free (name1);
        g_free (name2);
 
@@ -889,19 +917,154 @@ on_drag_data_get (GtkWidget *widget,
        gtk_tree_path_free (source_row);
 }
 
+typedef struct _DndHelper {
+       gboolean delete_source;
+       GtkTreePath *source_row;
+       GdkDragContext *context;
+       guint time;
+} DndHelper;
+
 
+/*
+ * This function is the callback of the
+ * modest_mail_operation_xfer_msgs () and
+ * modest_mail_operation_xfer_folder() calls. We check here if the
+ * message/folder was correctly asynchronously transferred. The reason
+ * to use the same callback is that the code is the same, it only has
+ * to check that the operation went fine and then finalize the drag
+ * and drop action
+ */
 static void
 on_progress_changed (ModestMailOperation *mail_op, gpointer user_data)
 {
-       ModestMailOperationQueue *queue;
+       gboolean success;
+       DndHelper *helper;
+
+       helper = (DndHelper *) user_data;
+
+       if (!modest_mail_operation_is_finished (mail_op))
+               return;
 
        if (modest_mail_operation_get_status (mail_op) == 
            MODEST_MAIL_OPERATION_STATUS_SUCCESS) {
-               g_print ("Bien bien");
+               success = TRUE;
+       } else {
+               success = FALSE;
        }
-       queue = modest_runtime_get_mail_operation_queue ();
 
-       modest_mail_operation_queue_remove (queue, mail_op);
+       /* Notify the drag source. Never call delete, the monitor will
+          do the job if needed */
+       gtk_drag_finish (helper->context, success, FALSE, helper->time);
+
+       /* Free the helper */
+       gtk_tree_path_free (helper->source_row);        
+       g_slice_free (DndHelper, helper);
+}
+
+/*
+ * This function is used by drag_data_received_cb to manage drag and
+ * drop of a header, i.e, and drag from the header view to the folder
+ * view.
+ */
+static void
+drag_and_drop_from_header_view (GtkTreeModel *source_model,
+                               GtkTreeModel *dest_model,
+                               GtkTreePath  *dest_row,
+                               DndHelper    *helper)
+{
+       TnyList *headers;
+       TnyHeader *header;
+       TnyFolder *folder;
+       ModestMailOperation *mail_op;
+       GtkTreeIter source_iter, dest_iter;
+
+       /* Get header */
+       gtk_tree_model_get_iter (source_model, &source_iter, helper->source_row);
+       gtk_tree_model_get (source_model, &source_iter, 
+                           TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, 
+                           &header, -1);
+
+       /* Get Folder */
+       gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
+       gtk_tree_model_get (dest_model, &dest_iter, 
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, 
+                           &folder, -1);
+
+       /* Transfer message */
+       mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_ID_RECEIVE, NULL);
+
+       modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
+                                        mail_op);
+       g_signal_connect (G_OBJECT (mail_op), "progress-changed",
+                         G_CALLBACK (on_progress_changed), helper);
+
+       /* FIXME: I replaced this because the API changed, but D&D
+          should be reviewed in order to allow multiple drags*/
+       headers = tny_simple_list_new ();
+       tny_list_append (headers, G_OBJECT (header));
+       g_object_unref (header);
+       modest_mail_operation_xfer_msgs (mail_op, headers, folder, helper->delete_source);
+
+       /* Frees */
+       g_object_unref (G_OBJECT (mail_op));
+       g_object_unref (G_OBJECT (header));
+       g_object_unref (G_OBJECT (folder));
+}
+
+/*
+ * This function is used by drag_data_received_cb to manage drag and
+ * drop of a folder, i.e, and drag from the folder view to the same
+ * folder view.
+ */
+static void
+drag_and_drop_from_folder_view (GtkTreeModel     *source_model,
+                               GtkTreeModel     *dest_model,
+                               GtkTreePath      *dest_row,
+                               GtkSelectionData *selection_data,
+                               DndHelper        *helper)
+{
+       ModestMailOperation *mail_op;
+       GtkTreeIter parent_iter, iter;
+       TnyFolderStore *parent_folder;
+       TnyFolder *folder;
+
+       /* Check if the drag is possible */
+       if (!gtk_tree_path_compare (helper->source_row, dest_row) ||
+           !gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (dest_model),
+                                                  dest_row,
+                                                  selection_data)) {
+
+               gtk_drag_finish (helper->context, FALSE, FALSE, helper->time);
+               gtk_tree_path_free (helper->source_row);        
+               g_slice_free (DndHelper, helper);
+               return;
+       }
+
+       /* Get data */
+       gtk_tree_model_get_iter (source_model, &parent_iter, dest_row);
+       gtk_tree_model_get_iter (source_model, &iter, helper->source_row);
+       gtk_tree_model_get (source_model, &parent_iter, 
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, 
+                           &parent_folder, -1);
+       gtk_tree_model_get (source_model, &iter,
+                           TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
+                           &folder, -1);
+
+       /* Do the mail operation */
+       mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_ID_RECEIVE, NULL);
+       modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (), 
+                                        mail_op);
+       g_signal_connect (G_OBJECT (mail_op), "progress-changed",
+                         G_CALLBACK (on_progress_changed), helper);
+
+       modest_mail_operation_xfer_folder (mail_op, 
+                                          folder, 
+                                          parent_folder,
+                                          helper->delete_source);
+
+       /* Frees */
+       g_object_unref (G_OBJECT (parent_folder));
+       g_object_unref (G_OBJECT (folder));
        g_object_unref (G_OBJECT (mail_op));
 }
 
@@ -926,180 +1089,76 @@ on_drag_data_received (GtkWidget *widget,
        GtkTreePath *source_row, *dest_row, *child_dest_row;
        GtkTreeViewDropPosition pos;
        gboolean success = FALSE, delete_source = FALSE;
+       DndHelper *helper;
 
        /* Do not allow further process */
        g_signal_stop_emission_by_name (widget, "drag-data-received");
 
-       /* Check if the get_data failed */
-       if (selection_data == NULL || selection_data->length < 0)
-               return;
-
        /* Get the action */
        if (context->action == GDK_ACTION_MOVE)
                delete_source = TRUE;
 
+       /* Check if the get_data failed */
+       if (selection_data == NULL || selection_data->length < 0)
+               gtk_drag_finish (context, success, FALSE, time);
+
        /* Get the models */
        source_widget = gtk_drag_get_source_widget (context);
-       model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
-
        gtk_tree_get_row_drag_data (selection_data,
                                    &source_model,
                                    &source_row);
 
+       model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
        /* Select the destination model */
-       if (source_widget == widget)
+       if (source_widget == widget) {
                dest_model = source_model;
-       else
+       } else {
                dest_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
-
+       }
 
        /* Get the path to the destination row. Can not call
           gtk_tree_view_get_drag_dest_row() because the source row
-          it's not selected anymore */
-       gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
-                                          x, y,
-                                          &dest_row,
-                                          &pos);
+          is not selected anymore */
+       gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget), x, y,
+                                          &dest_row, &pos);
 
        /* Only allow drops IN other rows */
-       if (!dest_row || 
-           pos == GTK_TREE_VIEW_DROP_BEFORE ||
-           pos == GTK_TREE_VIEW_DROP_AFTER)
-               goto finish;
+       if (!dest_row || pos == GTK_TREE_VIEW_DROP_BEFORE || pos == GTK_TREE_VIEW_DROP_AFTER)
+               gtk_drag_finish (context, success, FALSE, time);
+
+       /* Create the helper */
+       helper = g_slice_new0 (DndHelper);
+       helper->delete_source = delete_source;
+       helper->source_row = gtk_tree_path_copy (source_row);
+       helper->context = context;
+       helper->time = time;
 
-       /* Get the destination row in the usorted model */
+       /* Get path from the unsorted model */
        child_dest_row = 
                gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
                                                                dest_row);
+       gtk_tree_path_free (dest_row);
 
        /* Drags from the header view */
-       if ((target_type == FOLDER_ROW) && (source_widget != widget)) {
-               TnyHeader *header;
-               TnyFolder *folder;
-               ModestMailOperationQueue *queue;
-               ModestMailOperation *mail_op;
-               gboolean started;
-               GtkTreeIter source_iter, dest_iter;
-
-               /* Get header */
-               gtk_tree_model_get_iter (source_model, &source_iter, source_row);
-               gtk_tree_model_get (source_model, &source_iter, 
-                                   TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, 
-                                   &header, -1);
-
-               /* Get Folder */
-               gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
-               gtk_tree_model_get (dest_model, &dest_iter, 
-                                   TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, 
-                                   &folder, -1);
-
-               /* Transfer message */
-               queue = modest_runtime_get_mail_operation_queue ();
-               mail_op = modest_mail_operation_new ();
-               started = modest_mail_operation_xfer_msg (mail_op, header,
-                                                         folder, delete_source);
-               if (started) {
-                       g_signal_connect (G_OBJECT (mail_op), "progress_changed", 
-                                         G_CALLBACK (on_progress_changed), queue);
-                       modest_mail_operation_queue_add (queue, mail_op);
-               } else {
-                       const GError *error;
-                       error = modest_mail_operation_get_error (mail_op);
-                       g_warning ("Error trying to transfer messages: %s\n",
-                                  error->message);
-               }
-               g_object_unref (G_OBJECT (mail_op));
-               g_object_unref (G_OBJECT (header));
-               g_object_unref (G_OBJECT (folder));
+       if (source_widget != widget) {
 
-               /* FIXME */
-               success = TRUE;
+               drag_and_drop_from_header_view (source_model,
+                                               dest_model,
+                                               child_dest_row,
+                                               helper);
        } else {
-               GtkTreeRowReference *source_row_reference;
-               GtkTreeIter parent_iter, iter;
-               TnyFolder *folder, *new_folder;
-               TnyFolderStore *parent_folder;
-
-               /* Check if the drag is possible */
-               if (!gtk_tree_path_compare (source_row, child_dest_row))
-                       goto out;
-
-               if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (dest_model),
-                                                          child_dest_row,
-                                                          selection_data))
-                       goto out;
-
-               /* Do the mail operation */
-               gtk_tree_model_get_iter (source_model, &parent_iter, child_dest_row);
-               gtk_tree_model_get_iter (source_model, &iter, source_row);
-               gtk_tree_model_get (source_model, &parent_iter, 
-                                   TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, 
-                                   &parent_folder, -1);
-               gtk_tree_model_get (source_model, &iter,
-                                   TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
-                                   &folder, -1);
-               
-               g_signal_emit (G_OBJECT (widget), signals[FOLDER_XFER_SIGNAL], 0,
-                              folder, parent_folder, delete_source, &new_folder);
-
-               g_object_unref (G_OBJECT (parent_folder));
-               g_object_unref (G_OBJECT (folder));
-
-               if (!new_folder)
-                       goto out;
-
-               /* Get a row reference to the source path because the path
-                  could change after the insertion. The gtk_drag_finish() is
-                  not able to delete the source because that, so we have to
-                  do it manually */
-               source_row_reference = gtk_tree_row_reference_new (source_model, source_row);
-               gtk_tree_path_free (source_row);
-
-               /* Insert the dragged row as a child of the dest row */
-               gtk_tree_path_down (child_dest_row);
-               if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (dest_model),
-                                                          child_dest_row,
-                                                          selection_data)) {
-
-                       {
-                               GtkTreeIter iter;
-
-                               gtk_tree_model_get_iter (dest_model, &iter, child_dest_row);
-                               gtk_tree_store_set (GTK_TREE_STORE (dest_model), &iter,
-                                                   TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, new_folder, -1);
-                               g_object_unref (G_OBJECT (new_folder));
-                       }
 
-                       source_row = gtk_tree_row_reference_get_path (source_row_reference);
 
-                       success = TRUE;
-               }
-               gtk_tree_row_reference_free (source_row_reference);
-               
-               if (folder)
-                       g_object_unref (G_OBJECT(folder));
-               if (parent_folder)
-                       g_object_unref (G_OBJECT(parent_folder));
-               
+               drag_and_drop_from_folder_view (source_model,
+                                               dest_model,
+                                               child_dest_row,
+                                               selection_data, 
+                                               helper);
        }
- out:
-       gtk_tree_path_free (dest_row);
-       gtk_tree_path_free (child_dest_row);
-
-       /* Save the new path, will be used by the
-          drag-data-delete handler */
-       if (success && delete_source)
-               g_object_set_data (G_OBJECT (source_widget),
-                                  ROW_REF_DATA_NAME,
-                                  gtk_tree_path_copy (source_row));
 
-       /* Clean dest row */
-       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
-                                        NULL,
-                                        GTK_TREE_VIEW_DROP_BEFORE);
-
- finish:
-       gtk_drag_finish (context, success, (success && delete_source), time);
+       /* Frees */
+       gtk_tree_path_free (source_row);
+       gtk_tree_path_free (child_dest_row);
 }
 
 /*
@@ -1117,44 +1176,21 @@ drag_drop_cb (GtkWidget      *widget,
              guint           time,
              gpointer        user_data) 
 {
+       gpointer target;
+
        if (!context->targets)
                return FALSE;
 
+       /* Check if we're dragging a folder row */
+       target = gtk_drag_dest_find_target (widget, context, NULL);
+
        /* Request the data from the source. */
-       gtk_drag_get_data(widget, 
-                         context, 
-                         GDK_POINTER_TO_ATOM (context->targets->data), 
-                         time);
+       gtk_drag_get_data(widget, context, target, time);
 
     return TRUE;
 }
 
 /*
- * This function deletes the data that has been dragged from its
- * source widget. Since is a function received by the source of the
- * drag, this function only deletes rows of the folder view
- * widget. The header view widget will need to define its own one.
- */
-static void 
-drag_data_delete_cb (GtkWidget      *widget,
-                    GdkDragContext *context,
-                    gpointer        user_data)
-{
-       GtkTreePath *source_row;
-       GtkTreeModel *model_sort, *model;
-
-       model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
-       model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
-       source_row = g_object_steal_data (G_OBJECT (widget), ROW_REF_DATA_NAME);
-
-       /* Delete the source row */
-       gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
-                                              source_row);
-
-       gtk_tree_path_free (source_row);
-}
-
-/*
  * This function expands a node of a tree view if it's not expanded
  * yet. Not sure why it needs the threads stuff, but gtk+`example code
  * does that, so that's why they're here.
@@ -1211,6 +1247,7 @@ on_drag_motion (GtkWidget      *widget,
        GtkTreePath *dest_row;
        ModestFolderViewPrivate *priv;
        GdkDragAction suggested_action;
+       gboolean valid_location = FALSE;
 
        priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
 
@@ -1224,8 +1261,17 @@ on_drag_motion (GtkWidget      *widget,
                                           &dest_row,
                                           &pos);
 
-       if (!dest_row)
-               return FALSE;
+       /* Do not allow drops between folders */
+       if (!dest_row ||
+           pos == GTK_TREE_VIEW_DROP_BEFORE || 
+           pos == GTK_TREE_VIEW_DROP_AFTER) {
+               gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget), NULL, 0);
+               gdk_drag_status(context, 0, time);
+               valid_location = FALSE;
+               goto out;
+       } else {
+               valid_location = TRUE;
+       }
 
        /* Expand the selected row after 1/2 second */
        if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
@@ -1246,14 +1292,17 @@ on_drag_motion (GtkWidget      *widget,
        else
             gdk_drag_status(context, GDK_ACTION_DEFAULT, time);
 
-       return TRUE;
+ out:
+       g_signal_stop_emission_by_name (widget, "drag-motion");
+       return valid_location;
 }
 
 
 /* Folder view drag types */
 const GtkTargetEntry folder_view_drag_types[] =
 {
-       { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, FOLDER_ROW },
+       { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, MODEST_FOLDER_ROW },
+       { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP,    MODEST_HEADER_ROW }
 };
 
 /*
@@ -1272,10 +1321,10 @@ setup_drag_and_drop (GtkTreeView *self)
                           G_N_ELEMENTS (folder_view_drag_types),
                           GDK_ACTION_MOVE | GDK_ACTION_COPY);
 
-       gtk_signal_connect(GTK_OBJECT (self),
-                          "drag_data_received",
-                          GTK_SIGNAL_FUNC(on_drag_data_received),
-                          NULL);
+       g_signal_connect (G_OBJECT (self),
+                         "drag_data_received",
+                         G_CALLBACK (on_drag_data_received),
+                         NULL);
 
 
        /* Set up the treeview as a dnd source */
@@ -1285,24 +1334,138 @@ setup_drag_and_drop (GtkTreeView *self)
                             G_N_ELEMENTS (folder_view_drag_types),
                             GDK_ACTION_MOVE | GDK_ACTION_COPY);
 
-       gtk_signal_connect(GTK_OBJECT (self),
-                          "drag_data_delete",
-                          GTK_SIGNAL_FUNC(drag_data_delete_cb),
-                          NULL);
+       g_signal_connect (G_OBJECT (self),
+                         "drag_motion",
+                         G_CALLBACK (on_drag_motion),
+                         NULL);
+       
+       g_signal_connect (G_OBJECT (self),
+                         "drag_data_get",
+                         G_CALLBACK (on_drag_data_get),
+                         NULL);
+
+       g_signal_connect (G_OBJECT (self),
+                         "drag_drop",
+                         G_CALLBACK (drag_drop_cb),
+                         NULL);
+}
+
+/*
+ * This function manages the navigation through the folders using the
+ * keyboard or the hardware keys in the device
+ */
+static gboolean
+on_key_pressed (GtkWidget *self,
+               GdkEventKey *event,
+               gpointer user_data)
+{
+       GtkTreeSelection *selection;
+       GtkTreeIter iter;
+       GtkTreeModel *model;
+       gboolean retval = FALSE;
+
+       /* Up and Down are automatically managed by the treeview */
+       if (event->keyval == GDK_Return) {
+               /* Expand/Collapse the selected row */
+               selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
+               if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
+                       GtkTreePath *path;
+
+                       path = gtk_tree_model_get_path (model, &iter);
+
+                       if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (self), path))
+                               gtk_tree_view_collapse_row (GTK_TREE_VIEW (self), path);
+                       else
+                               gtk_tree_view_expand_row (GTK_TREE_VIEW (self), path, FALSE);
+                       gtk_tree_path_free (path);
+               }
+               /* No further processing */
+               retval = TRUE;
+       }
+
+       return retval;
+}
 
-       gtk_signal_connect(GTK_OBJECT (self),
-                          "drag_motion",
-                          GTK_SIGNAL_FUNC(on_drag_motion),
-                          NULL);
+/*
+ * We listen to the changes in the local folder account name key,
+ * because we want to show the right name in the view. The local
+ * folder account name corresponds to the device name in the Maemo
+ * version. We do this because we do not want to query gconf on each
+ * tree view refresh. It's better to cache it and change whenever
+ * necessary.
+ */
+static void 
+on_configuration_key_changed (ModestConf* conf, 
+                             const gchar *key, 
+                             ModestConfEvent event, 
+                             ModestFolderView *self)
+{
+       ModestFolderViewPrivate *priv;
 
+       if (!key)
+               return;
 
-       gtk_signal_connect(GTK_OBJECT (self),
-                          "drag_data_get",
-                          GTK_SIGNAL_FUNC(on_drag_data_get),
-                          NULL);
+       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
+
+       if (!strcmp (key, MODEST_CONF_DEVICE_NAME)) {
+               g_free (priv->local_account_name);
+
+               if (event == MODEST_CONF_EVENT_KEY_UNSET)
+                       priv->local_account_name = g_strdup (MODEST_LOCAL_FOLDERS_DEFAULT_DISPLAY_NAME);
+               else
+                       priv->local_account_name = modest_conf_get_string (modest_runtime_get_conf(),
+                                                                          MODEST_CONF_DEVICE_NAME, NULL);
+
+               /* Force a redraw */
+#if GTK_CHECK_VERSION(2, 8, 0) /* gtk_tree_view_column_queue_resize is only available in GTK+ 2.8 */
+               GtkTreeViewColumn * tree_column = gtk_tree_view_get_column (GTK_TREE_VIEW (self), 
+                                                                           TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN);
+               gtk_tree_view_column_queue_resize (tree_column);
+#endif
+       }
+}
+
+void 
+modest_folder_view_set_style (ModestFolderView *self,
+                             ModestFolderViewStyle style)
+{
+       ModestFolderViewPrivate *priv;
+
+       g_return_if_fail (self);
+       
+       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
+
+       priv->style = style;
+}
+
+void
+modest_folder_view_set_account_id_of_visible_server_account (ModestFolderView *self,
+                                                            const gchar *account_id)
+{
+       ModestFolderViewPrivate *priv;
+       ModestConf *conf;
+
+       g_return_if_fail (self);
+       
+       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
+
+       if (priv->visible_account_id)
+               g_free (priv->visible_account_id);
+       priv->visible_account_id = g_strdup (account_id);
+
+       /* Save preferences */
+       conf = modest_runtime_get_conf ();
+       modest_widget_memory_save (conf, G_OBJECT (self), MODEST_CONF_FOLDER_VIEW_KEY);
+}
+
+const gchar *
+modest_folder_view_get_account_id_of_visible_server_account (ModestFolderView *self)
+{
+       ModestFolderViewPrivate *priv;
+
+       g_return_val_if_fail (self, NULL);
+       
+       priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 
-       gtk_signal_connect(GTK_OBJECT (self),
-                          "drag_drop",
-                          GTK_SIGNAL_FUNC(drag_drop_cb),
-                          NULL);
+       return (const gchar *) priv->visible_account_id;
 }