* Fix some detected memory leaks
[modest] / src / maemo / modest-main-window.c
index 013b49b..68bf108 100644 (file)
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <hildon-widgets/hildon-window.h>
-#include <hildon-widgets/hildon-note.h>
-
 #include <glib/gi18n.h>
 #include <gtk/gtktreeviewcolumn.h>
 #include <tny-account-store-view.h>
 #include <tny-simple-list.h>
-
+#include "modest-hildon-includes.h"
+#include "modest-defs.h"
 #include <string.h>
 
 #include "widgets/modest-main-window.h"
 #include "modest-mail-operation.h"
 #include "modest-icon-names.h"
 #include "modest-progress-bar-widget.h"
+#include "maemo/modest-osso-state-saving.h"
+
+#ifdef MODEST_HILDON_VERSION_0
+#include <hildon-widgets/hildon-program.h>
+#else
+#include <hildon/hildon-program.h>
+#endif /*MODEST_HILDON_VERSION_0*/
+
 
 /* 'private'/'protected' functions */
 static void modest_main_window_class_init    (ModestMainWindowClass *klass);
@@ -71,6 +77,14 @@ static void save_sizes (ModestMainWindow *self);
 static void modest_main_window_show_toolbar   (ModestWindow *window,
                                               gboolean show_toolbar);
 
+static void cancel_progressbar (GtkToolButton *toolbutton,
+                               ModestMainWindow *self);
+
+static void         on_queue_changed                     (ModestMailOperationQueue *queue,
+                                                         ModestMailOperation *mail_op,
+                                                         ModestMailOperationQueueNotification type,
+                                                         ModestMainWindow *self);
+
 static void on_account_update                 (TnyAccountStore *account_store, 
                                               gchar *account_name,
                                               gpointer user_data);
@@ -84,6 +98,10 @@ static void on_configuration_key_changed      (ModestConf* conf,
                                               ModestConfEvent event, 
                                               ModestMainWindow *self);
 
+static void 
+set_toolbar_mode (ModestMainWindow *self, 
+                 ModestToolBarModes mode);
+
 /* list my signals */
 enum {
        /* MY_SIGNAL_1, */
@@ -100,12 +118,23 @@ struct _ModestMainWindowPrivate {
        GtkWidget *contents_widget;
 
        /* Progress observers */
-       GtkWidget *progress_widget;
+       GtkWidget        *progress_bar;
+       GSList           *progress_widgets;
+
+       /* Tollbar items */
+       GtkWidget   *progress_toolitem;
+       GtkWidget   *cancel_toolitem;
+       GtkWidget   *sort_toolitem;
+       GtkWidget   *refresh_toolitem;
+       ModestToolBarModes current_toolbar_mode;
 
        /* On-demand widgets */
        GtkWidget *accounts_popup;
        GtkWidget *details_widget;
 
+       /* Optimized view enabled */
+       gboolean optimized_view;
+
        ModestHeaderView *header_view;
        ModestFolderView *folder_view;
 
@@ -142,6 +171,12 @@ static const GtkActionEntry modest_folder_view_action_entries [] = {
        { "FolderViewCSMHelp", NULL, N_("mcen_me_inbox_help"), NULL, NULL, NULL },
 };
 
+
+static const GtkToggleActionEntry modest_main_window_toggle_action_entries [] = {
+       { "ToolbarToggleView", MODEST_STOCK_SPLIT_VIEW, N_("gqn_toolb_rss_fldonoff"), "<CTRL>t", NULL, G_CALLBACK (modest_ui_actions_toggle_folders_view), FALSE },
+};
+
+
 /************************************************************************/
 
 GType
@@ -201,6 +236,12 @@ modest_main_window_init (ModestMainWindow *obj)
        priv->accounts_popup  = NULL;
        priv->details_widget  = NULL;
 
+       priv->optimized_view  = FALSE;
+
+       priv->progress_widgets  = NULL;
+       priv->progress_bar = NULL;
+       priv->current_toolbar_mode = TOOLBAR_MODE_NORMAL;
+
        priv->style  = MODEST_MAIN_WINDOW_STYLE_SPLIT;
        priv->contents_style  = MODEST_MAIN_WINDOW_CONTENTS_STYLE_HEADERS;
 }
@@ -208,6 +249,12 @@ modest_main_window_init (ModestMainWindow *obj)
 static void
 modest_main_window_finalize (GObject *obj)
 {
+       ModestMainWindowPrivate *priv;
+
+       priv = MODEST_MAIN_WINDOW_GET_PRIVATE(obj);
+
+       g_slist_free (priv->progress_widgets);
+
        G_OBJECT_CLASS(parent_class)->finalize (obj);
 }
 
@@ -249,11 +296,11 @@ restore_sizes (ModestMainWindow *self)
        conf = modest_runtime_get_conf ();
        
        modest_widget_memory_restore (conf, G_OBJECT(priv->main_paned),
-                                     "modest-main-paned");
+                                     MODEST_CONF_MAIN_PANED_KEY);
        modest_widget_memory_restore (conf, G_OBJECT(priv->header_view),
-                                     "header-view");
+                                     MODEST_CONF_HEADER_VIEW_KEY);
        modest_widget_memory_restore (conf, G_OBJECT(self), 
-                                     "modest-main-window");
+                                     MODEST_CONF_MAIN_WINDOW_KEY);
 }
 
 
@@ -266,10 +313,12 @@ save_sizes (ModestMainWindow *self)
        priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
        conf = modest_runtime_get_conf ();
        
-       modest_widget_memory_save (conf,G_OBJECT(self), "modest-main-window");
-       modest_widget_memory_save (conf, G_OBJECT(priv->main_paned),
-                                  "modest-main-paned");
-       modest_widget_memory_save (conf, G_OBJECT(priv->header_view), "header-view");
+       modest_widget_memory_save (conf,G_OBJECT(self), 
+                                  MODEST_CONF_MAIN_WINDOW_KEY);
+       modest_widget_memory_save (conf, G_OBJECT(priv->main_paned), 
+                                  MODEST_CONF_MAIN_PANED_KEY);
+       modest_widget_memory_save (conf, G_OBJECT(priv->header_view), 
+                                  MODEST_CONF_HEADER_VIEW_KEY);
 }
 
 static void
@@ -291,6 +340,20 @@ on_delete_event (GtkWidget *widget, GdkEvent  *event, ModestMainWindow *self)
        return FALSE;
 }
 
+
+static void
+on_connection_changed (TnyDevice *device, gboolean online, ModestMainWindow *self)
+{
+       /* When going online, do the equivalent of pressing the send/receive button, 
+        * as per the specification:
+        * (without the check for >0 accounts, though that is not specified): */
+       if (online) {
+               do_send_receive (MODEST_WINDOW (self));
+       }
+}
+
+
+
 static void
 connect_signals (ModestMainWindow *self)
 {      
@@ -331,6 +394,12 @@ connect_signals (ModestMainWindow *self)
                          NULL);
        g_signal_connect (G_OBJECT(self), "delete-event", G_CALLBACK(on_delete_event), self);
 
+       /* Mail Operation Queue */
+       g_signal_connect (G_OBJECT (modest_runtime_get_mail_operation_queue ()),
+                         "queue-changed",
+                         G_CALLBACK (on_queue_changed),
+                         self);
+
        /* Track changes in the device name */
        g_signal_connect (G_OBJECT(modest_runtime_get_conf ()),
                          "key_changed",
@@ -342,17 +411,59 @@ connect_signals (ModestMainWindow *self)
                          "account_update",
                          G_CALLBACK (on_account_update),
                          self);
-}
 
+       /* Device */
+       g_signal_connect (G_OBJECT(modest_runtime_get_device()), "connection_changed",
+                         G_CALLBACK(on_connection_changed), self);
+}
 
+/** Idle handler, to send/receive at startup .*/
 gboolean
 sync_accounts_cb (ModestMainWindow *win)
 {
-       modest_ui_actions_on_send_receive (NULL, MODEST_WINDOW(win));
-       return FALSE;
+       do_send_receive (MODEST_WINDOW(win));
+       return FALSE; /* Do not call this idle handler again. */
+}
+
+static void on_hildon_program_is_topmost_notify(GObject *self,
+       GParamSpec *propert_param, gpointer user_data)
+{
+       HildonProgram *app = HILDON_PROGRAM (self);
+       
+       /*
+       ModestWindow* self = MODEST_WINDOW(user_data);
+       */
+       
+       /* Note that use of hildon_program_set_can_hibernate() 
+        * is generally referred to as "setting the killable flag", 
+        * though hibernation does not seem equal to death.
+        * murrayc */
+                
+       if (hildon_program_get_is_topmost (app)) {
+               /* Prevent hibernation when the progam comes to the foreground,
+                * because hibernation should only happen when the application 
+                * is in the background: */
+               hildon_program_set_can_hibernate (app, FALSE);
+       } else {
+               /* Allow hibernation if the program has gone to the background: */
+               
+               /* However, prevent hibernation while the settings are being changed: */
+               gboolean settings_dialog_is_open = FALSE;
+               
+               if (settings_dialog_is_open)
+                       hildon_program_set_can_hibernate (app, FALSE);
+               else {
+                       
+                       /* Allow hibernation, after saving the state: */
+                       modest_osso_save_state();
+                       hildon_program_set_can_hibernate (app, TRUE);
+               }
+       }
+       
 }
 
 
+
 ModestWindow*
 modest_main_window_new (void)
 {
@@ -391,6 +502,11 @@ modest_main_window_new (void)
                                             G_N_ELEMENTS (modest_toggle_action_entries),
                                             self);
 
+       gtk_action_group_add_toggle_actions (action_group,
+                                            modest_main_window_toggle_action_entries,
+                                            G_N_ELEMENTS (modest_main_window_toggle_action_entries),
+                                            self);
+
        gtk_ui_manager_insert_action_group (parent_priv->ui_manager, action_group, 0);
        g_object_unref (action_group);
 
@@ -428,7 +544,7 @@ modest_main_window_new (void)
        if (!priv->folder_view)
                g_printerr ("modest: cannot instantiate folder view\n");
        g_object_unref (G_OBJECT (query));
-       modest_folder_view_set_style (priv->folder_view, 
+       modest_folder_view_set_style (priv->folder_view,
                                      MODEST_FOLDER_VIEW_STYLE_SHOW_ONE);
 
        /* Get device name */
@@ -478,11 +594,31 @@ modest_main_window_new (void)
        /* Set account store */
        tny_account_store_view_set_account_store (TNY_ACCOUNT_STORE_VIEW (priv->folder_view),
                                                  TNY_ACCOUNT_STORE (modest_runtime_get_account_store ()));
-       g_idle_add ((GSourceFunc)sync_accounts_cb, self);
-       /* do send & receive when we are idle */        
 
+       /* do send & receive when we are idle */
+       g_idle_add ((GSourceFunc)sync_accounts_cb, self);
        
+
+       HildonProgram *app = hildon_program_get_instance ();
+       hildon_program_add_window (app, HILDON_WINDOW (self));
        
+       /* Register HildonProgram  signal handlers: */
+       /* These are apparently deprecated, according to the 
+        * "HildonApp/HildonAppView to HildonProgram/HildonWindow migration guide",
+        * though the API reference does not mention that:
+        *
+       g_signal_connect (G_OBJECT(app), "topmost_status_lose",
+               G_CALLBACK (on_hildon_program_save_state), self);
+       g_signal_connect (G_OBJECT(app), "topmost_status_acquire",
+               G_CALLBACK (on_hildon_program_status_acquire), self);
+    */
+       g_signal_connect (G_OBJECT(app), "notify::is-topmost",
+               G_CALLBACK (on_hildon_program_is_topmost_notify), self);
+               
+       /* Load previous osso state, for instance if we are being restored from 
+        * hibernation:  */
+       modest_osso_load_state();
+
        return MODEST_WINDOW(self);
 }
 
@@ -508,67 +644,27 @@ modest_main_window_close_all (ModestMainWindow *self)
                return FALSE;
 }
 
-void 
-modest_main_window_set_toolbar_mode (ModestMainWindow *self, 
-                                     ModestToolBarModes mode)
-{
-       ModestMainWindowPrivate *priv;
-       ModestWindowPrivate *parent_priv;
-       GtkAction *action;
-       gboolean transfer_mode= FALSE;
-       gboolean normal_mode= FALSE;
-
-
-       g_return_if_fail (MODEST_IS_MAIN_WINDOW (self));
-
-       priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
-       parent_priv = MODEST_WINDOW_GET_PRIVATE (self);
-                       
-       switch (mode) {
-       case TOOLBAR_MODE_NORMAL:
-               normal_mode = TRUE;
-               transfer_mode = FALSE;
-               gtk_widget_hide (priv->progress_widget);
-               break;
-       case TOOLBAR_MODE_TRANSFER:
-               normal_mode = FALSE;
-               transfer_mode = TRUE;
-               gtk_widget_show (priv->progress_widget);
-               break;
-       default:
-               normal_mode = TRUE;
-               transfer_mode = FALSE;          
-               gtk_widget_hide (priv->progress_widget);
-       }
-
-       /* Transfer mode toolitems */
-       action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarCancel");
-       if (action != NULL) 
-               gtk_action_set_visible (action, transfer_mode);
-       
-       /* Normal mode toolitems */
-       action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarSort");
-       if (action != NULL) 
-               gtk_action_set_visible (action, normal_mode);
-       action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarSendReceive");
-       if (action != NULL) 
-               gtk_action_set_visible (action, normal_mode);
-}
 
 void 
 modest_main_window_set_style (ModestMainWindow *self, 
                              ModestMainWindowStyle style)
 {
        ModestMainWindowPrivate *priv;
+       ModestWindowPrivate *parent_priv;
+       GtkAction *action;
 
        g_return_if_fail (MODEST_IS_MAIN_WINDOW (self));
 
        priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
+       parent_priv = MODEST_WINDOW_GET_PRIVATE(self);
 
        /* no change -> nothing to do */
        if (priv->style == style)
                return;
 
+       /* Get toggle button */
+       action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarToggleView");
+
        priv->style = style;
 
        switch (style) {
@@ -580,6 +676,10 @@ modest_main_window_set_style (ModestMainWindow *self,
                /* Reparent the contents widget to the main vbox */
                gtk_widget_reparent (priv->contents_widget, priv->main_vbox);
 
+               g_signal_handlers_block_by_func (action, modest_ui_actions_toggle_folders_view, self);
+               gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
+               g_signal_handlers_unblock_by_func (action, modest_ui_actions_toggle_folders_view, self);
+
                break;
        case MODEST_MAIN_WINDOW_STYLE_SPLIT:
                /* Remove header view */
@@ -589,6 +689,11 @@ modest_main_window_set_style (ModestMainWindow *self,
                /* Reparent the main paned */
                gtk_paned_add2 (GTK_PANED (priv->main_paned), priv->contents_widget);
                gtk_container_add (GTK_CONTAINER (priv->main_vbox), priv->main_paned);
+
+               g_signal_handlers_block_by_func (action, modest_ui_actions_toggle_folders_view, self);
+               gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), FALSE);
+               g_signal_handlers_unblock_by_func (action, modest_ui_actions_toggle_folders_view, self);
+
                break;
        default:
                g_return_if_reached ();
@@ -615,6 +720,8 @@ modest_main_window_get_style (ModestMainWindow *self)
        return priv->style;
 }
 
+
+
 static gboolean
 modest_main_window_window_state_event (GtkWidget *widget, GdkEventWindowState *event, gpointer userdata)
 {
@@ -658,31 +765,47 @@ modest_main_window_show_toolbar (ModestWindow *self,
        ModestWindowPrivate *parent_priv = NULL;        
        GtkWidget *reply_button = NULL, *menu = NULL;
        GtkWidget *placeholder = NULL;
-       GtkWidget *tool_item = NULL;
        gint insert_index;
 
-       parent_priv = MODEST_WINDOW_GET_PRIVATE(self);
+       g_return_if_fail (MODEST_IS_MAIN_WINDOW (self));
        priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
+       parent_priv = MODEST_WINDOW_GET_PRIVATE(self);
+
+       /* Set optimized view status */
+       priv->optimized_view = !show_toolbar;
 
-       if (!parent_priv->toolbar && show_toolbar) {
+       if (!parent_priv->toolbar) {
                parent_priv->toolbar = gtk_ui_manager_get_widget (parent_priv->ui_manager, 
                                                                  "/ToolBar");
 
                /* Set homogeneous toolbar */
                gtk_container_foreach (GTK_CONTAINER (parent_priv->toolbar), 
                                       set_homogeneous, NULL);
+       
+               priv->progress_toolitem = GTK_WIDGET (gtk_tool_item_new ());
+               priv->cancel_toolitem = gtk_ui_manager_get_widget (parent_priv->ui_manager, "/ToolBar/ToolbarCancel");
+               priv->refresh_toolitem = gtk_ui_manager_get_widget (parent_priv->ui_manager, "/ToolBar/ToolbarSendReceive");
+               priv->sort_toolitem = gtk_ui_manager_get_widget (parent_priv->ui_manager, "/ToolBar/ToolbarSort");
+               gtk_tool_item_set_homogeneous (GTK_TOOL_ITEM (priv->progress_toolitem), FALSE);
+               gtk_tool_item_set_expand (GTK_TOOL_ITEM (priv->progress_toolitem), FALSE);
+               gtk_tool_item_set_homogeneous (GTK_TOOL_ITEM (priv->cancel_toolitem), FALSE);
+               gtk_tool_item_set_expand (GTK_TOOL_ITEM (priv->cancel_toolitem), FALSE);
 
                /* Add ProgressBar (Transfer toolbar) */ 
-               priv->progress_widget = modest_progress_bar_widget_new ();
-               gtk_widget_set_no_show_all (priv->progress_widget, TRUE);
-               modest_progress_bar_widget_set_status (MODEST_PROGRESS_BAR_WIDGET(priv->progress_widget), 0);
+               priv->progress_bar = modest_progress_bar_widget_new ();
+               gtk_widget_set_no_show_all (priv->progress_bar, TRUE);
                placeholder = gtk_ui_manager_get_widget (parent_priv->ui_manager, "/ToolBar/ProgressBarView");
                insert_index = gtk_toolbar_get_item_index(GTK_TOOLBAR (parent_priv->toolbar), GTK_TOOL_ITEM(placeholder));
-               tool_item = GTK_WIDGET (gtk_tool_item_new ());
-               gtk_container_add (GTK_CONTAINER (tool_item), priv->progress_widget);
-/*             gtk_tool_item_set_expand (GTK_TOOL_ITEM (tool_item), TRUE); */
-/*             gtk_tool_item_set_homogeneous (GTK_TOOL_ITEM (tool_item), TRUE); */
-               gtk_toolbar_insert(GTK_TOOLBAR(parent_priv->toolbar), GTK_TOOL_ITEM (tool_item), insert_index);
+               gtk_container_add (GTK_CONTAINER (priv->progress_toolitem), priv->progress_bar);
+               gtk_toolbar_insert(GTK_TOOLBAR(parent_priv->toolbar), GTK_TOOL_ITEM (priv->progress_toolitem), insert_index);
+               
+               /* Connect cancel 'clicked' signal to abort progress mode */
+               g_signal_connect(priv->cancel_toolitem, "clicked",
+                                G_CALLBACK(cancel_progressbar),
+                                self);
+               
+               /* Add it to the observers list */
+               priv->progress_widgets = g_slist_prepend(priv->progress_widgets, priv->progress_bar);
 
                /* Add to window */
                hildon_window_add_toolbar (HILDON_WINDOW (self), 
@@ -700,16 +823,20 @@ modest_main_window_show_toolbar (ModestWindow *self,
                                   NULL, self);
        }
 
-
        if (show_toolbar) {
+               /* Quick hack: this prevents toolbar icons "dance" when progress bar show status is changed */
+               /* TODO: resize mode migth be GTK_RESIZE_QUEUE, in order to avoid unneccesary shows */
+               gtk_container_set_resize_mode (GTK_CONTAINER(parent_priv->toolbar), GTK_RESIZE_IMMEDIATE);
+               
                gtk_widget_show (GTK_WIDGET (parent_priv->toolbar));
-               modest_main_window_set_toolbar_mode (MODEST_MAIN_WINDOW(self), TOOLBAR_MODE_NORMAL);
+               set_toolbar_mode (MODEST_MAIN_WINDOW(self), TOOLBAR_MODE_NORMAL);
        } else
                gtk_widget_hide (GTK_WIDGET (parent_priv->toolbar));
+
 }
 
 /*
- * TODO: modify the menu dinamically. Add handlers to each item of the
+ * TODO: modify the menu dynamically. Add handlers to each item of the
  * menu when created
  */
 static void 
@@ -734,8 +861,13 @@ on_account_update (TnyAccountStore *account_store,
        if (!parent_priv->toolbar)
                return;
 
-       if (priv->accounts_popup)
+       if (priv->accounts_popup && gtk_menu_get_attach_widget (GTK_MENU (priv->accounts_popup)) ) {
+               /* gtk_menu_detach will also unreference the popup, 
+                * so we can forget about this instance, and create a new one later:
+                */
                gtk_menu_detach (GTK_MENU (priv->accounts_popup));
+               priv->accounts_popup = NULL;
+       }
 
        /* Get accounts */
        account_list = tny_simple_list_new ();
@@ -763,19 +895,28 @@ on_account_update (TnyAccountStore *account_store,
        default_account = modest_account_mgr_get_default_account (mgr);
 
        do {
-               TnyAccount *acc;
-               const gchar *acc_name;
-               gchar *display_name;
+               TnyAccount *acc = NULL;
+               const gchar *acc_name = NULL;
 
                /* Create tool item */
                acc = TNY_ACCOUNT (tny_iterator_get_current (iter));
-               acc_name = tny_account_get_name (acc);
+               if (acc)
+                       acc_name = tny_account_get_name (acc);
 
                /* Create display name */
-               if (!strcmp (default_account, acc_name))
-                       display_name = g_strdup_printf (_("mcen_me_toolbar_sendreceive_default"), acc_name);
+               gchar *display_name = NULL;
+               if (acc_name) {
+                       if (default_account && !(strcmp (default_account, acc_name) == 0))
+                               display_name = g_strdup_printf (_("mcen_me_toolbar_sendreceive_default"), acc_name);
+                       else
+                               display_name = g_strdup_printf (_("mcen_me_toolbar_sendreceive_mailbox_n"), acc_name);
+               }
                else
-                       display_name = g_strdup_printf (_("mcen_me_toolbar_sendreceive_mailbox_n"), acc_name);
+               {
+                       /* TODO: This probably should never happen: */
+                       display_name = g_strdup_printf (_("mcen_me_toolbar_sendreceive_default"), "");
+               }
+               
 
                item = gtk_menu_item_new_with_label (display_name);
 
@@ -1011,3 +1152,168 @@ on_configuration_key_changed (ModestConf* conf,
                g_list_free (children);
        }
 }
+
+static void 
+set_toolbar_mode (ModestMainWindow *self, 
+                 ModestToolBarModes mode)
+{
+       ModestWindowPrivate *parent_priv = NULL;
+       ModestMainWindowPrivate *priv = NULL;
+       GtkAction *sort_action = NULL, *refresh_action = NULL, *cancel_action = NULL;
+       
+       g_return_if_fail (MODEST_IS_MAIN_WINDOW (self));
+
+       parent_priv = MODEST_WINDOW_GET_PRIVATE(self);
+       priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
+
+       g_return_if_fail (GTK_IS_TOOLBAR(parent_priv->toolbar)); 
+       
+       sort_action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarSort");
+       refresh_action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarSendReceive");
+       cancel_action = gtk_ui_manager_get_action (parent_priv->ui_manager, "/ToolBar/ToolbarCancel");
+
+       /* Sets current toolbar mode */
+       priv->current_toolbar_mode = mode;
+
+       /* Show and hide toolbar items */
+       switch (mode) {
+       case TOOLBAR_MODE_NORMAL:
+               if (sort_action) 
+                       gtk_action_set_visible (sort_action, TRUE);
+               if (refresh_action) 
+                       gtk_action_set_visible (refresh_action, TRUE);
+               if (priv->progress_toolitem) {
+                       gtk_tool_item_set_expand (GTK_TOOL_ITEM (priv->progress_toolitem), FALSE);
+                       gtk_widget_hide (priv->progress_toolitem);
+               }
+               if (priv->progress_bar)
+                       gtk_widget_hide (priv->progress_bar);                   
+               
+               if (cancel_action)
+                       gtk_action_set_visible (cancel_action, FALSE);
+
+               /* Hide toolbar if optimized view is enabled */
+               if (priv->optimized_view)
+                       gtk_widget_hide (GTK_WIDGET(parent_priv->toolbar));
+               break;
+       case TOOLBAR_MODE_TRANSFER:
+               if (sort_action)
+                       gtk_action_set_visible (sort_action, FALSE);
+               if (refresh_action)
+                       gtk_action_set_visible (refresh_action, FALSE);
+               if (cancel_action)
+                       gtk_action_set_visible (cancel_action, TRUE);
+               if (priv->progress_toolitem) {
+                       gtk_tool_item_set_expand (GTK_TOOL_ITEM (priv->progress_toolitem), TRUE);
+                       gtk_widget_show (priv->progress_toolitem);
+               }
+               if (priv->progress_bar)
+                       gtk_widget_show (priv->progress_bar);                   
+
+               /* Show toolbar if it's hiden (optimized view ) */
+               if (priv->optimized_view)
+                       gtk_widget_show (GTK_WIDGET (parent_priv->toolbar));
+               break;
+       default:
+               g_return_if_reached ();
+       }
+}
+
+static void
+cancel_progressbar (GtkToolButton *toolbutton,
+                   ModestMainWindow *self)
+{
+       GSList *tmp;
+       ModestMainWindowPrivate *priv;
+       
+       priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
+
+       /* Get operation observers and cancel its current operation */
+       tmp = priv->progress_widgets;
+       while (tmp) {
+               modest_progress_object_cancel_current_operation (MODEST_PROGRESS_OBJECT(tmp->data));
+               tmp=g_slist_next(tmp);
+       }
+}
+
+static gboolean
+observers_empty (ModestMainWindow *self)
+{
+       GSList *tmp = NULL;
+       ModestMainWindowPrivate *priv;
+       gboolean is_empty = TRUE;
+       guint pending_ops = 0;
+       priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
+       tmp = priv->progress_widgets;
+
+       /* Check all observers */
+       while (tmp && is_empty)  {
+               pending_ops = modest_progress_object_num_pending_operations (MODEST_PROGRESS_OBJECT(tmp->data));
+               is_empty = pending_ops == 0;
+               
+               tmp = g_slist_next(tmp);
+       }
+       
+       return is_empty;
+}
+
+static void
+on_queue_changed (ModestMailOperationQueue *queue,
+                 ModestMailOperation *mail_op,
+                 ModestMailOperationQueueNotification type,
+                 ModestMainWindow *self)
+{
+       ModestMainWindowPrivate *priv;
+       ModestMailOperationId op_id;
+       ModestToolBarModes mode;
+       GSList *tmp;
+       gboolean mode_changed = FALSE;
+
+       g_return_if_fail (MODEST_IS_MAIN_WINDOW (self));
+       priv = MODEST_MAIN_WINDOW_GET_PRIVATE(self);
+              
+       /* Get toolbar mode from operation id*/
+       op_id = modest_mail_operation_get_id (mail_op);
+       switch (op_id) {
+       case MODEST_MAIL_OPERATION_ID_SEND:
+       case MODEST_MAIL_OPERATION_ID_RECEIVE:
+               mode = TOOLBAR_MODE_TRANSFER;
+               if (priv->current_toolbar_mode == TOOLBAR_MODE_NORMAL)
+                       mode_changed = TRUE;
+               break;
+       default:
+               mode = TOOLBAR_MODE_NORMAL;
+               
+       }
+               
+                      
+       /* Add operation observers and change toolbar if neccessary*/
+       tmp = priv->progress_widgets;
+       switch (type) {
+       case MODEST_MAIL_OPERATION_QUEUE_OPERATION_ADDED:
+               if (mode_changed)
+                       set_toolbar_mode (self, mode);
+               if (mode == TOOLBAR_MODE_TRANSFER) {
+                       while (tmp) {
+                               modest_progress_object_add_operation (MODEST_PROGRESS_OBJECT (tmp->data),
+                                                                     mail_op);
+                               tmp = g_slist_next (tmp);
+                       }
+               }
+               break;
+       case MODEST_MAIL_OPERATION_QUEUE_OPERATION_REMOVED:
+               if (mode == TOOLBAR_MODE_TRANSFER) {
+                       while (tmp) {
+                               modest_progress_object_remove_operation (MODEST_PROGRESS_OBJECT (tmp->data),
+                                                                        mail_op);
+                               tmp = g_slist_next (tmp);
+                       }
+                       
+                       /* If no more operations are being observed, NORMAL mode is enabled again */
+                       if (observers_empty (self))
+                               set_toolbar_mode (self, TOOLBAR_MODE_NORMAL);
+               }
+               break;
+       }       
+}