Add method to get the folder without accessing network.
[modest] / src / hildon2 / modest-hildon2-window-mgr.c
index 41d2b3e..879a300 100644 (file)
  */
 
 #include <string.h>
+#include <hildon/hildon.h>
+#include "modest-hildon2-window.h"
 #include "modest-hildon2-window-mgr.h"
 #include "modest-msg-edit-window.h"
+#include "modest-mailboxes-window.h"
+#include "modest-header-window.h"
 #include "modest-main-window.h"
 #include "modest-conf.h"
 #include "modest-defs.h"
 #include "modest-ui-actions.h"
 #include "modest-debug.h"
 #include "modest-tny-folder.h"
-#include <hildon/hildon.h>
+#include "modest-folder-window.h"
+#include "modest-accounts-window.h"
+#include "modest-maemo-utils.h"
+#include "modest-utils.h"
+#include "modest-tny-msg.h"
+#include <tny-merge-folder.h>
 
 /* 'private'/'protected' functions */
 static void modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass);
@@ -70,27 +79,44 @@ static void modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
 static gboolean modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, 
                                                                  TnyHeader *header,
                                                                  ModestWindow **win);
+static gboolean modest_hildon2_window_mgr_find_registered_message_uid (ModestWindowMgr *self, 
+                                                                      const gchar *msg_uid,
+                                                                      ModestWindow **win);
 static GList *modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self);
 static gboolean modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self);
 static gboolean window_can_close (ModestWindow *window);
 static gboolean window_has_modals (ModestWindow *window);
+static ModestWindow *modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self);
+static ModestWindow *modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self);
+static gboolean modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self);
+static void modest_hildon2_window_mgr_create_caches (ModestWindowMgr *self);
+static void osso_display_event_cb (osso_display_state_t state, 
+                                  gpointer data);
+static void on_account_removed (TnyAccountStore *acc_store, 
+                               TnyAccount *account,
+                               gpointer user_data);
 
 typedef struct _ModestHildon2WindowMgrPrivate ModestHildon2WindowMgrPrivate;
 struct _ModestHildon2WindowMgrPrivate {
        GList        *window_list;
        GMutex       *queue_lock;
        GQueue       *modal_windows;
-       
+
        gboolean     fullscreen_mode;
-       
+
        GHashTable   *destroy_handlers;
        GHashTable   *viewer_handlers;
        GSList       *window_state_uids;
-       
+
        guint        closing_time;
 
        GSList       *modal_handler_uids;
        ModestWindow *current_top;
+
+       gulong        accounts_handler;
+
+       /* Display state */
+       osso_display_state_t display_state;
 };
 #define MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
                                                                                   MODEST_TYPE_HILDON2_WINDOW_MGR, \
@@ -142,8 +168,13 @@ modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass)
        mgr_class->get_modal = modest_hildon2_window_mgr_get_modal;
        mgr_class->set_modal = modest_hildon2_window_mgr_set_modal;
        mgr_class->find_registered_header = modest_hildon2_window_mgr_find_registered_header;
+       mgr_class->find_registered_message_uid = modest_hildon2_window_mgr_find_registered_message_uid;
        mgr_class->get_window_list = modest_hildon2_window_mgr_get_window_list;
        mgr_class->close_all_windows = modest_hildon2_window_mgr_close_all_windows;
+       mgr_class->show_initial_window = modest_hildon2_window_mgr_show_initial_window;
+       mgr_class->get_current_top = modest_hildon2_window_mgr_get_current_top;
+       mgr_class->screen_is_on = modest_hildon2_window_mgr_screen_is_on;
+       mgr_class->create_caches = modest_hildon2_window_mgr_create_caches;
 
        g_type_class_add_private (gobject_class, sizeof(ModestHildon2WindowMgrPrivate));
 
@@ -157,30 +188,45 @@ modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj)
        priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
        priv->window_list = NULL;
        priv->fullscreen_mode = FALSE;
-       priv->current_top = NULL;
        priv->window_state_uids = NULL;
 
        priv->modal_windows = g_queue_new ();
        priv->queue_lock = g_mutex_new ();
-       
+
        /* Could not initialize it from gconf, singletons are not
           ready yet */
-       priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);   
+       priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
        priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 
        priv->closing_time = 0;
 
        priv->modal_handler_uids = NULL;
+       priv->display_state = OSSO_DISPLAY_ON;
+
+       /* Listen for changes in the screen, we don't want to show a
+          led pattern when the display is on for example */
+       osso_hw_set_display_event_cb (modest_maemo_utils_get_osso_context (),
+                                     osso_display_event_cb,
+                                     obj); 
+
 }
 
 static void
 modest_hildon2_window_mgr_finalize (GObject *obj)
 {
        ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
+       ModestTnyAccountStore *acc_store;
 
        modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
        priv->window_state_uids = NULL;
 
+       osso_hw_set_display_event_cb (modest_maemo_utils_get_osso_context (),
+                                     NULL, NULL);
+
+       acc_store = modest_runtime_get_account_store ();
+       if (acc_store && g_signal_handler_is_connected (acc_store, priv->accounts_handler))
+               g_signal_handler_disconnect (acc_store, priv->accounts_handler);
+
        if (priv->window_list) {
                GList *iter = priv->window_list;
                /* unregister pending windows */
@@ -214,11 +260,10 @@ modest_hildon2_window_mgr_finalize (GObject *obj)
                g_mutex_unlock (priv->queue_lock);
        }
        g_mutex_free (priv->queue_lock);
-       
+
        /* Do not unref priv->main_window because it does not hold a
           new reference */
 
-       
        G_OBJECT_CLASS(parent_class)->finalize (obj);
 }
 
@@ -231,17 +276,19 @@ modest_hildon2_window_mgr_new (void)
 static gboolean
 modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self)
 {
+       ModestHildon2WindowMgrPrivate *priv = NULL;
        gboolean ret_value = FALSE;
        GtkWidget *window;
-       gboolean failed = FALSE;
        HildonWindowStack *stack;
+       gboolean failed = FALSE;
 
        g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
+       priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 
        stack = hildon_window_stack_get_default ();
 
        while ((window = hildon_window_stack_peek (stack)) != NULL) {
-               g_signal_emit_by_name (window, "delete-event", NULL, &ret_value);
+               g_signal_emit_by_name (G_OBJECT (window), "delete-event", NULL, &ret_value);
                if (ret_value == TRUE) {
                        failed = TRUE;
                        break;
@@ -268,13 +315,34 @@ compare_msguids (ModestWindow *win,
        } else {
                msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
        }
-       
+
        if (msg_uid && uid &&!strcmp (msg_uid, uid))
                return 0;
        else
                return 1;
 }
 
+static gint
+compare_headers (ModestWindow *win,
+                TnyHeader *header)
+{
+       TnyHeader *my_header;
+       gint result = 1;
+
+       if (!MODEST_IS_MSG_VIEW_WINDOW (win))
+               return 1;
+
+       /* Get message uid from msg window */
+       my_header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
+       if (my_header) {
+               if (my_header == header)
+                       result = 0;
+               g_object_unref (my_header);
+       }
+       return result;
+}
+
+
 static gboolean
 modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
                                                  ModestWindow **win)
@@ -311,6 +379,38 @@ modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHead
        return has_header || has_window;
 }
 
+static gboolean
+modest_hildon2_window_mgr_find_registered_message_uid (ModestWindowMgr *self, const gchar *msg_uid,
+                                                      ModestWindow **win)
+{
+       ModestHildon2WindowMgrPrivate *priv = NULL;
+       gboolean has_header, has_window = FALSE;
+       GList *item = NULL;
+
+       g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
+       g_return_val_if_fail (msg_uid && msg_uid[0] != '\0', FALSE);
+       
+       priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
+
+       has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_message_uid (self, msg_uid, win);
+       
+       item = g_list_find_custom (priv->window_list, msg_uid, (GCompareFunc) compare_msguids);
+       if (item) {
+               has_window = TRUE;
+               if (win) {
+                       if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) && 
+                           (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
+                               g_debug ("not a valid window!");
+                       else {
+                               g_debug ("found a window");
+                               *win = MODEST_WINDOW (item->data);
+                       }
+               }
+       }
+       
+       return has_header || has_window;
+}
+
 static GList *
 modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self)
 {
@@ -330,27 +430,124 @@ modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
        GList *win;
        ModestHildon2WindowMgrPrivate *priv;
        gint *handler_id;
-       ModestWindow *main_window;
-       HildonProgram *program;
-       GtkWidget *current_top;
        HildonWindowStack *stack;
+       gboolean nested_msg = FALSE;
+       ModestWindow *current_top;
+       GtkWidget *modal;
 
        g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
        g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 
        priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 
-       program = hildon_program_get_instance ();
+       /* Check that there is no active modal dialog */
+       modal = (GtkWidget *) modest_window_mgr_get_modal (self);
+       while (modal && GTK_IS_DIALOG (modal)) {
+               GtkWidget *parent;
+
+               /* Get the parent */
+               parent = (GtkWidget *) gtk_window_get_transient_for (GTK_WINDOW (modal));
+
+               /* Try to close it */
+               gtk_dialog_response (GTK_DIALOG (modal), GTK_RESPONSE_DELETE_EVENT);
+
+               /* Maybe the dialog was not closed, because a close
+                  confirmation dialog for example. Then ignore the
+                  register process */
+               if (GTK_IS_WINDOW (modal)) {
+                       gtk_window_present (GTK_WINDOW (modal));
+                       return FALSE;
+               }
+
+               /* Get next modal */
+               modal = parent;
+       }
+
+       stack = hildon_window_stack_get_default ();
+       current_top = (ModestWindow *) hildon_window_stack_peek (stack);
+
        win = g_list_find (priv->window_list, window);
        if (win) {
-               /* this is for the case we want to register the window and it was already
-                * registered. We leave silently, telling the operation was succesful.
-                */
-               gtk_window_present (GTK_WINDOW (win));
-               return TRUE;
+               /* this is for the case we want to register the window
+                  and it was already registered */
+               gtk_window_present (GTK_WINDOW (window));
+               return FALSE;
        }
 
-       stack = hildon_window_stack_get_default ();
+       /* Do not allow standalone editors or standalone viewers */
+       if (!current_top &&
+           (MODEST_IS_MSG_VIEW_WINDOW (window) ||
+            MODEST_IS_MSG_EDIT_WINDOW (window)))
+               modest_window_mgr_show_initial_window (self);
+
+       if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
+               gchar *uid;
+               TnyHeader *header;
+
+               uid = g_strdup (modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (window)));
+               
+               header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (window));
+
+               if (uid == NULL)
+                       uid = modest_tny_folder_get_header_unique_id (header);
+               /* Embedded messages do not have uid */
+               if (uid) {
+                       if (g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids)) {
+                               g_debug ("%s found another view window showing the same header", __FUNCTION__);
+                               g_free (uid);
+                               g_object_unref (header);
+                               return FALSE;
+                       }
+                       g_free (uid);
+               } else if (header) {
+                       if (g_list_find_custom (priv->window_list, header, (GCompareFunc) compare_headers)) {
+                               g_debug ("%s found another view window showing the same header", __FUNCTION__);
+                               g_object_unref (header);
+                               return FALSE;
+                       }
+               }
+               if (header)
+                       g_object_unref (header);
+       }
+
+       /* Do not go backwards */
+       if ((MODEST_IS_MSG_VIEW_WINDOW (current_top) || MODEST_IS_MSG_EDIT_WINDOW (current_top)) &&
+           (MODEST_IS_FOLDER_WINDOW (window) || MODEST_IS_ACCOUNTS_WINDOW (window) || 
+            MODEST_IS_MAILBOXES_WINDOW (window))) {
+               gtk_window_present (GTK_WINDOW (window));
+               return FALSE;
+       }
+
+       if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_FOLDER_WINDOW (window)) {
+               gtk_window_present (GTK_WINDOW (window));
+               return FALSE;
+       }
+
+       if (MODEST_IS_MAILBOXES_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
+               gtk_window_present (GTK_WINDOW (window));
+               return FALSE;
+       }
+
+       /* Mailboxes window can not replace folder windows */
+       if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
+               gtk_window_present (GTK_WINDOW (current_top));
+               return FALSE;
+       }
+
+       /* Trying to open a folders window and a mailboxes window at
+          the same time from the accounts window is not allowed */
+       if (MODEST_IS_MAILBOXES_WINDOW (current_top) &&
+           MODEST_IS_FOLDER_WINDOW (window) &&
+           MODEST_IS_ACCOUNTS_WINDOW (parent)) {
+               gtk_window_present (GTK_WINDOW (window));
+               return FALSE;
+       }
+
+       if (MODEST_IS_HEADER_WINDOW (current_top) && MODEST_IS_HEADER_WINDOW (window)) {
+               g_debug ("Trying to register a second header window is not allowed");
+               gtk_window_present (GTK_WINDOW (current_top));
+               return FALSE;
+       }
 
        if (!MODEST_WINDOW_MGR_CLASS (parent_class)->register_window (self, window, parent))
                goto fail;
@@ -359,42 +556,28 @@ modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
        g_object_ref (window);
        priv->window_list = g_list_prepend (priv->window_list, window);
 
-       current_top = hildon_window_stack_peek (stack);
-
-       /* TODO: rethink this method it will be different depending on
-          the type of the window that we're registering */
-       if (!parent || ((GtkWidget *) parent != current_top)) {
-               guint num_windows = hildon_window_stack_size (stack);
+       nested_msg = MODEST_IS_MSG_VIEW_WINDOW (window) &&
+               MODEST_IS_MSG_VIEW_WINDOW (parent);
 
-               /* We have to close all windows with the exception of the root window */
-               if (num_windows > 1)
-                       hildon_window_stack_pop (stack, num_windows - 1, NULL);
+       /* Close views if they're being shown. Nevertheless we must
+          allow nested messages */
+       if (!nested_msg &&
+           (MODEST_IS_MSG_EDIT_WINDOW (current_top) ||
+            MODEST_IS_MSG_VIEW_WINDOW (current_top))) {
+               gboolean retval;
 
-               /* We remove 1 because we added it before */
-               if (modest_window_mgr_num_windows (MODEST_WINDOW_MGR (self)) - 1> 1) {
-                       /* Then we couldn't close one of the preceding windows, so we have to stop the 
-                        * window register process and fail.
-                        */
+               /* If the current view has modal dialogs then
+                  we fail to register the new view */
+               if ((current_top != NULL) &&
+                   window_has_modals (MODEST_WINDOW (current_top))) {
+                       /* Window on top but it has opened dialogs */
                        goto fail;
                }
 
-               if ((current_top != NULL) && !MODEST_IS_MAIN_WINDOW (current_top)) {
-                       gboolean retval;
-                       g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
-                       if (retval == TRUE) {
-                               /* Cancelled closing top window, then we fail to register */
-                               goto fail;
-                       }
-                       current_top = hildon_window_stack_peek (stack);
-               }
-               if ((current_top != NULL) && !MODEST_IS_MAIN_WINDOW (current_top)) {
-                       /* Closing the stacked windows failed, then we shouldn't show the
-                          new window */
-                       goto fail;
-               }
-               if ((current_top != NULL) && 
-                   window_has_modals (MODEST_WINDOW (current_top))) {
-                       /* Window on top but it has opened dialogs */
+               /* Close the current view */
+               g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
+               if (retval == TRUE) {
+                       /* Cancelled closing top window, then we fail to register */
                        goto fail;
                }
        }
@@ -404,17 +587,6 @@ modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
        *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
        g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 
-       main_window = modest_window_mgr_get_main_window (self, FALSE);
-       /* If there is a msg view window, let the main window listen the msg-changed signal */
-       if (MODEST_IS_MSG_VIEW_WINDOW(window) && main_window) {
-               gulong *handler;
-               handler = g_malloc0 (sizeof (gulong));
-               *handler = g_signal_connect (window, "msg-changed",
-                                            G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
-                                            main_window);
-               g_hash_table_insert (priv->viewer_handlers, window, handler);
-       }
-
        /* Show toolbar always */
        modest_window_show_toolbar (window, TRUE);
 
@@ -423,8 +595,7 @@ fail:
        /* Add to list. Keep a reference to the window */
        priv->window_list = g_list_remove (priv->window_list, window);
        g_object_unref (window);
-
-       current_top = hildon_window_stack_peek (stack);
+       current_top = (ModestWindow *) hildon_window_stack_peek (stack);
        if (current_top)
                gtk_window_present (GTK_WINDOW (current_top));
        return FALSE;
@@ -436,14 +607,16 @@ cancel_window_operations (ModestWindow *window)
        GSList* pending_ops = NULL;
 
        /* cancel open and receive operations */
-       pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
+       pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (), 
                                                                 G_OBJECT (window));
        while (pending_ops != NULL) {
                ModestMailOperationTypeOperation type;
                GSList* tmp_list = NULL;
 
                type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
-               if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
+               if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE ||
+                   type == MODEST_MAIL_OPERATION_TYPE_OPEN ||
+                   type == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
                        modest_mail_operation_cancel (pending_ops->data);
                }
                g_object_unref (G_OBJECT (pending_ops->data));
@@ -464,7 +637,8 @@ window_has_modals (ModestWindow *window)
        toplevels = gtk_window_list_toplevels ();
        for (node = toplevels; node != NULL; node = g_list_next (node)) {
                if (GTK_IS_WINDOW (node->data) &&
-                   gtk_window_get_transient_for (GTK_WINDOW (node->data)) == GTK_WINDOW (window)) {
+                   gtk_window_get_transient_for (GTK_WINDOW (node->data)) == GTK_WINDOW (window) &&
+                   GTK_WIDGET_VISIBLE (node->data)) {
                        retvalue = TRUE;
                        break;
                }
@@ -491,73 +665,66 @@ on_window_destroy (ModestWindow *window,
 {
        gboolean no_propagate = FALSE;
 
-       if (!window_can_close (window)) {
+       if (!window_can_close (window))
                return TRUE;
-       }
-       /* Specific stuff first */
-       if (MODEST_IS_MAIN_WINDOW (window)) {
-               ModestHildon2WindowMgrPrivate *priv;
-               ModestMainWindowContentsStyle style;
-               priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
-
-               /* If we're on header view, then just go to folder view and don't close */
-               style = modest_main_window_get_contents_style (MODEST_MAIN_WINDOW (window));
-               if (style == MODEST_MAIN_WINDOW_CONTENTS_STYLE_HEADERS) {
-                       modest_main_window_set_contents_style (MODEST_MAIN_WINDOW (window),
-                                                              MODEST_MAIN_WINDOW_CONTENTS_STYLE_FOLDERS);
-                       return TRUE;
-               }
-
-               /* Do not unregister it, just hide */
-               gtk_widget_hide_all (GTK_WIDGET (window));
-
-               /* Cancel pending operations */
-               cancel_window_operations (window);
 
-               /* Fake the window system, make it think that there is no window */
-               if (modest_window_mgr_num_windows (MODEST_WINDOW_MGR (self)) == 0)
-                       g_signal_emit_by_name (self, "window-list-empty");
-
-               no_propagate = TRUE;
-       }
-       else {
-               if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
-                       gboolean sent = FALSE;
-                       sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
-                       /* Save currently edited message to Drafts if it was not sent */
-                       if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
-
-                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
-                                 return TRUE;
+       if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
+               gboolean sent = FALSE;
+               sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
+               /* Save currently edited message to Drafts if it was not sent */
+               if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
+                       ModestMsgEditWindow *edit_window;
+                       MsgData *data;
+
+                       edit_window = MODEST_MSG_EDIT_WINDOW (window);
+                       data = modest_msg_edit_window_get_msg_data (edit_window);
+
+                       if (data) {
+                               gint parts_count;
+                               guint64 parts_size, available_size, expected_size;
+
+                               available_size = modest_utils_get_available_space (NULL);
+                               modest_msg_edit_window_get_parts_size (edit_window, &parts_count, &parts_size);
+                               expected_size = modest_tny_msg_estimate_size (data->plain_body,
+                                                                             data->html_body,
+                                                                             parts_count,
+                                                                             parts_size);
+                               modest_msg_edit_window_free_msg_data (edit_window, data);
+                               data = NULL;
+
+                               /* If there is not enough space
+                                  available for saving the message
+                                  then show an error and close the
+                                  window without saving */
+                               if (expected_size >= available_size) {
+                                       modest_platform_run_information_dialog (GTK_WINDOW (edit_window),
+                                                                               _("mail_in_ui_save_error"),
+                                                                               FALSE);
+                               } else {
+                                       if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
+                                               return TRUE;
+                               }
+                       } else {
+                               g_warning ("Edit window without message data. This is probably a bug");
                        }
                }
-               /* Unregister window */
-               modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (self), window);
-               no_propagate = FALSE;
        }
 
+       /* Unregister window */
+       modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (self), window);
+       no_propagate = FALSE;
+
        return no_propagate;
 }
 
 static void
-disconnect_msg_changed (gpointer key, 
-                       gpointer value, 
-                       gpointer user_data)
-{
-       guint handler_id;
-       handler_id = GPOINTER_TO_UINT(value);
-       
-       if (key && G_IS_OBJECT(key))
-               g_signal_handler_disconnect (G_OBJECT (key), handler_id);
-}
-
-static void 
 modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self, 
                                             ModestWindow *window)
 {
        GList *win;
        ModestHildon2WindowMgrPrivate *priv;
        gulong *tmp, handler_id;
+       guint num_windows;
 
        g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
        g_return_if_fail (MODEST_IS_WINDOW (window));
@@ -566,24 +733,10 @@ modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
 
        win = g_list_find (priv->window_list, window);
        if (!win) {
-               g_warning ("Trying to unregister a window that has not being registered yet");
+               g_debug ("Trying to unregister a window that has not being registered yet");
                return;
        }
 
-       /* If it's the main window unset it */
-       if (MODEST_IS_MAIN_WINDOW (window)) {
-               modest_window_mgr_set_main_window (self, NULL);
-
-               /* Disconnect all emissions of msg-changed */
-               if (priv->viewer_handlers) {
-                       g_hash_table_foreach (priv->viewer_handlers, 
-                                             disconnect_msg_changed, 
-                                             NULL);
-                       g_hash_table_destroy (priv->viewer_handlers);
-                       priv->viewer_handlers = NULL;
-               }
-       }
-
        /* Remove the viewer window handler from the hash table. The
           HashTable could not exist if the main window was closed
           when there were other windows remaining */
@@ -608,44 +761,33 @@ modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
        /* cancel open and receive operations */
        cancel_window_operations (window);
 
-       /* Check if it's the topmost window, and remove the window from the stack.
-        * This is needed for the cases there's no other topmost window that will
-        * replace it in topmost handler.
-        */
-        if (window == priv->current_top)
-                priv->current_top = NULL;
-
        /* Disconnect the "window-state-event" handler, we won't need it anymore */
        if (priv->window_state_uids) {
-#ifndef MODEST_TOOLKIT_GTK
                priv->window_state_uids = 
                        modest_signal_mgr_disconnect (priv->window_state_uids, 
                                                      G_OBJECT (window), 
                                                      "notify::is-topmost");
-#else
-               priv->window_state_uids = 
-                       modest_signal_mgr_disconnect (priv->window_state_uids, 
-                                                     G_OBJECT (window), 
-                                                     "window-state-event");
-#endif
        }
-       
+
        /* Disconnect the "delete-event" handler, we won't need it anymore */
        g_signal_handler_disconnect (window, handler_id);
 
        /* Destroy the window */
        g_object_unref (win->data);
        g_list_free (win);
-       
+
        MODEST_WINDOW_MGR_CLASS (parent_class)->unregister_window (self, window);
 
+       /* We have to get the number of windows here in order not to
+          emit the signal too many times */
+       num_windows = modest_window_mgr_get_num_windows (self);
+
        /* If there are no more windows registered emit the signal */
-       if (modest_window_mgr_num_windows (self) == 0)
+       if (num_windows == 0)
                g_signal_emit_by_name (self, "window-list-empty");
 }
 
 
-
 static void
 modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
                                               gboolean on)
@@ -677,10 +819,12 @@ modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
 {
        ModestHildon2WindowMgrPrivate *priv;
        ModestWindow *result;
-       
+
        g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
        priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
-       
+
+       /* TODO: make this return NULL always */
+
        result = MODEST_WINDOW_MGR_CLASS (parent_class)->get_main_window (self, FALSE);
        /* create the main window, if it hasn't been created yet */
        if (!result && show) {
@@ -703,32 +847,59 @@ modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
                gtk_widget_show_all (GTK_WIDGET (result));
                gtk_window_present (GTK_WINDOW (result));
        }
-       
+
        return result;
 }
 
+static gint
+look_for_transient (gconstpointer a,
+                   gconstpointer b)
+{
+       GtkWindow *win, *child;
+
+       if (a == b)
+               return 1;
+
+       child = (GtkWindow *) b;
+       win = (GtkWindow *) a;
+
+       if (gtk_window_get_transient_for (win) == child)
+               return 0;
+       else
+               return 1;
+}
 
 static GtkWindow *
 modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self)
 {
        ModestHildon2WindowMgrPrivate *priv;
        GList *toplevel_list;
-       GtkWidget *toplevel;
-       
+       GtkWidget *current_top, *toplevel;
+       HildonWindowStack *stack;
+
        g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
        priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 
-       toplevel = NULL;
+       /* Get current top */
+       stack = hildon_window_stack_get_default ();
+       current_top = hildon_window_stack_peek (stack);
+       toplevel = current_top;
        toplevel_list = gtk_window_list_toplevels ();
-       while (toplevel_list) {
-               if (gtk_window_is_active (toplevel_list->data)) {
-                       toplevel = toplevel_list->data;
+
+       while (toplevel) {
+               GList *parent_link;
+
+               parent_link = g_list_find_custom (toplevel_list, toplevel, look_for_transient);
+               if (parent_link)
+                       toplevel = (GtkWidget *) parent_link->data;
+               else
                        break;
-               }
-               toplevel_list = g_list_next (toplevel_list);
        }
 
-       return NULL;
+       if (toplevel && GTK_WIDGET_VISIBLE (toplevel) && gtk_window_get_modal ((GtkWindow *) toplevel))
+               return (GtkWindow *) toplevel;
+       else
+               return NULL;
 }
 
 
@@ -745,3 +916,162 @@ modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
        gtk_window_set_destroy_with_parent (window, TRUE);
 }
 
+static void
+close_all_but_first (HildonWindowStack *stack)
+{
+       gint num_windows, i;
+       gboolean retval;
+
+       num_windows = hildon_window_stack_size (stack);
+
+       for (i = 0; i < (num_windows - 1); i++) {
+               GtkWidget *current_top;
+
+               /* Close window */
+               current_top = hildon_window_stack_peek (stack);
+               g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
+       }
+}
+
+static void
+on_account_removed (TnyAccountStore *acc_store, 
+                   TnyAccount *account,
+                   gpointer user_data)
+{
+       HildonWindowStack *stack;
+       ModestWindow *current_top;
+
+       /* Ignore transport account removals */
+       if (TNY_IS_TRANSPORT_ACCOUNT (account))
+               return;
+
+       stack = hildon_window_stack_get_default ();
+       current_top = (ModestWindow *) hildon_window_stack_peek (stack);
+
+       /* if we're showing the header view of the currently deleted
+          account, or the outbox and we deleted the last account,
+          then close the window */
+       if (current_top && MODEST_IS_HEADER_WINDOW (current_top)) {
+               ModestHeaderView *header_view;
+               TnyFolder *folder;
+
+               header_view = modest_header_window_get_header_view (MODEST_HEADER_WINDOW (current_top));
+               folder = modest_header_view_get_folder (header_view);
+               if (folder) {
+                       /* Close if it's my account */
+                       if (!TNY_IS_MERGE_FOLDER (folder)) {
+                               TnyAccount *my_account;
+
+                               my_account = tny_folder_get_account (folder);
+                               if (my_account) {
+                                       if (my_account == account)
+                                               close_all_but_first (stack);
+
+                                       g_object_unref (my_account);
+                               }
+                       }
+
+                       /* Close if viewing outbox and no account left */
+                       if (tny_folder_get_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX)
+                               close_all_but_first (stack);
+
+                       g_object_unref (folder);
+               }
+       }
+}
+
+static ModestWindow *
+modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self)
+{
+       ModestWindow *initial_window = NULL;
+       ModestHildon2WindowMgrPrivate *priv;
+
+       priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
+
+       /* Connect to the account store "account-removed" signal". We
+          do this here because in the init the singletons are still
+          not initialized properly */
+       if (!g_signal_handler_is_connected (modest_runtime_get_account_store (),
+                                           priv->accounts_handler)) {
+               priv->accounts_handler = g_signal_connect (modest_runtime_get_account_store (),
+                                                          "account-removed",
+                                                          G_CALLBACK (on_account_removed),
+                                                          self);
+       }
+
+       /* Return accounts window */
+       initial_window = MODEST_WINDOW (modest_accounts_window_new ());
+       modest_window_mgr_register_window (self, initial_window, NULL);
+
+       return initial_window;
+}
+
+
+static ModestWindow *
+modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self)
+{
+       HildonWindowStack *stack;
+       stack = hildon_window_stack_get_default ();
+       return (ModestWindow *) hildon_window_stack_peek (stack);
+}
+
+static gint 
+find_folder_window (gconstpointer a,
+                   gconstpointer b)
+{
+       return (MODEST_IS_FOLDER_WINDOW (a)) ? 0 : 1;
+}
+
+ModestWindow *
+modest_hildon2_window_mgr_get_folder_window (ModestHildon2WindowMgr *self)
+{
+       ModestHildon2WindowMgrPrivate *priv;
+       GList *window;
+
+       g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
+
+       priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
+
+       window = g_list_find_custom (priv->window_list,
+                                    NULL,
+                                    find_folder_window);
+
+       return (window != NULL) ? MODEST_WINDOW (window->data) : NULL;
+}
+
+static gboolean
+modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self)
+{
+       ModestHildon2WindowMgrPrivate *priv = NULL;
+
+       g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
+
+       priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
+       
+       return (priv->display_state == OSSO_DISPLAY_ON) ? TRUE : FALSE;
+}
+
+static void
+modest_hildon2_window_mgr_create_caches (ModestWindowMgr *self)
+{
+       g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
+
+       modest_accounts_window_pre_create ();
+
+       MODEST_WINDOW_MGR_CLASS(parent_class)->create_caches (self);
+       
+}
+
+static void 
+osso_display_event_cb (osso_display_state_t state, 
+                      gpointer data)
+{
+       ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (data);
+
+       priv->display_state = state;
+
+       /* Stop blinking if the screen becomes on */
+       if (priv->display_state == OSSO_DISPLAY_ON)
+               modest_platform_remove_new_mail_notifications (TRUE);
+}
+