X-Git-Url: http://git.maemo.org/git/?p=modest;a=blobdiff_plain;f=src%2Fwidgets%2Fmodest-window-mgr.c;h=6da29ad48c2cbd9373080bc69aa9899a2e7a9b3c;hp=d66cc14adbb898278947fff868bd6c0a75b757f4;hb=f027aeec354ec9c5ea3432ccd6ae544cce43f696;hpb=87596c5aa5517ac7ba37e50664a969fcaaea72f9

diff --git a/src/widgets/modest-window-mgr.c b/src/widgets/modest-window-mgr.c
index d66cc14..6da29ad 100644
--- a/src/widgets/modest-window-mgr.c
+++ b/src/widgets/modest-window-mgr.c
@@ -36,39 +36,60 @@
 #include "widgets/modest-main-window.h"
 #include "widgets/modest-msg-edit-window.h"
 #include "widgets/modest-msg-view-window.h"
-/* include other impl specific header files */
+#include "modest-debug.h"
+
 
 /* 'private'/'protected' functions */
 static void modest_window_mgr_class_init (ModestWindowMgrClass *klass);
 static void modest_window_mgr_init       (ModestWindowMgr *obj);
 static void modest_window_mgr_finalize   (GObject *obj);
 
-/* static void on_window_destroy            (ModestWindow *window,  */
-/* 					  ModestWindowMgr *self); */
-static gboolean on_window_destroy            (ModestWindow *window,
-					      GdkEvent *event,
-					      ModestWindowMgr *self);
+static gboolean modest_window_mgr_register_window_default (ModestWindowMgr *self, 
+							   ModestWindow *window,
+							   ModestWindow *parent);
+static void modest_window_mgr_unregister_window_default (ModestWindowMgr *self, 
+							 ModestWindow *window);
+static void modest_window_mgr_set_fullscreen_mode_default (ModestWindowMgr *self,
+							   gboolean on);
+static gboolean modest_window_mgr_get_fullscreen_mode_default (ModestWindowMgr *self);
+static void modest_window_mgr_show_toolbars_default (ModestWindowMgr *self,
+						     GType window_type,
+						     gboolean show_toolbars,
+						     gboolean fullscreen);
+static ModestWindow* modest_window_mgr_get_main_window_default (ModestWindowMgr *self, gboolean show);
+static GtkWindow *modest_window_mgr_get_modal_default (ModestWindowMgr *self);
+static void modest_window_mgr_set_modal_default (ModestWindowMgr *self, 
+						 GtkWindow *window,
+						 GtkWindow *parent);
+static gboolean modest_window_mgr_close_all_windows_default (ModestWindowMgr *self);
+static gboolean modest_window_mgr_find_registered_header_default (ModestWindowMgr *self, 
+								  TnyHeader *header,
+								  ModestWindow **win);
+static GList *modest_window_mgr_get_window_list_default (ModestWindowMgr *self);
 
 /* list my signals  */
 enum {
-	/* MY_SIGNAL_1, */
-	/* MY_SIGNAL_2, */
-	LAST_SIGNAL
+	WINDOW_LIST_EMPTY_SIGNAL,
+	NUM_SIGNALS
 };
 
 typedef struct _ModestWindowMgrPrivate ModestWindowMgrPrivate;
 struct _ModestWindowMgrPrivate {
-	GList        *window_list;
+	guint         banner_counter;
+
 	ModestWindow *main_window;
-	gboolean     fullscreen_mode;
-	gboolean     show_toolbars;
-	gboolean     show_toolbars_fullscreen;
-	
+
 	GSList       *windows_that_prevent_hibernation;
 	GSList       *preregistered_uids;
-	GHashTable   *destroy_handlers;
-	GHashTable   *viewer_handlers;
+	
+	guint        closing_time;
+
+	GtkWidget    *cached_view;
+	GtkWidget    *cached_editor;
+	guint        idle_load_view_id;
+	guint        idle_load_editor_id;
 };
+
 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
                                                MODEST_TYPE_WINDOW_MGR, \
                                                ModestWindowMgrPrivate))
@@ -76,7 +97,7 @@ struct _ModestWindowMgrPrivate {
 static GObjectClass *parent_class = NULL;
 
 /* uncomment the following if you have defined any signals */
-/* static guint signals[LAST_SIGNAL] = {0}; */
+static guint signals[NUM_SIGNALS] = {0};
 
 GType
 modest_window_mgr_get_type (void)
@@ -106,12 +127,79 @@ static void
 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 {
 	GObjectClass *gobject_class;
+	ModestWindowMgrClass *mgr_class;
+
 	gobject_class = (GObjectClass*) klass;
+	mgr_class = (ModestWindowMgrClass *) klass;
 
 	parent_class            = g_type_class_peek_parent (klass);
 	gobject_class->finalize = modest_window_mgr_finalize;
+	mgr_class->register_window = modest_window_mgr_register_window_default;
+	mgr_class->unregister_window = modest_window_mgr_unregister_window_default;
+	mgr_class->set_fullscreen_mode = modest_window_mgr_set_fullscreen_mode_default;
+	mgr_class->get_fullscreen_mode = modest_window_mgr_get_fullscreen_mode_default;
+	mgr_class->show_toolbars = modest_window_mgr_show_toolbars_default;
+	mgr_class->get_main_window = modest_window_mgr_get_main_window_default;
+	mgr_class->get_modal = modest_window_mgr_get_modal_default;
+	mgr_class->set_modal = modest_window_mgr_set_modal_default;
+	mgr_class->close_all_windows = modest_window_mgr_close_all_windows_default;
+	mgr_class->find_registered_header = modest_window_mgr_find_registered_header_default;
+	mgr_class->get_window_list = modest_window_mgr_get_window_list_default;
 
 	g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
+
+
+	/**
+	 * ModestWindowMgr::window-list-empty
+	 * @self: the #ModestWindowMgr that emits the signal
+	 * @user_data: user data set when the signal handler was connected
+	 *
+	 * Issued whenever the window list becomes empty
+	 */
+	signals[WINDOW_LIST_EMPTY_SIGNAL] =
+		g_signal_new ("window-list-empty",
+			      G_TYPE_FROM_CLASS (gobject_class),
+			      G_SIGNAL_RUN_FIRST,
+			      G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
+			      NULL, NULL,
+			      g_cclosure_marshal_VOID__VOID,
+			      G_TYPE_NONE, 0);
+}
+
+static gboolean
+idle_load_view (ModestWindowMgr *mgr)
+{
+	ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
+	
+	priv->cached_view = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
+	priv->idle_load_view_id = 0;
+	return FALSE;
+}
+
+static gboolean
+idle_load_editor (ModestWindowMgr *mgr)
+{
+	ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
+	
+	priv->cached_editor = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
+	priv->idle_load_editor_id = 0;
+	return FALSE;
+}
+
+static void
+load_new_view (ModestWindowMgr *self)
+{
+	ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+	if ((priv->cached_view == NULL) && (priv->idle_load_view_id == 0))
+		priv->idle_load_view_id = g_idle_add ((GSourceFunc) idle_load_view, self);
+}
+
+static void
+load_new_editor (ModestWindowMgr *self)
+{
+	ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+	if ((priv->cached_editor == NULL) && (priv->idle_load_editor_id == 0))
+		priv->idle_load_editor_id = g_idle_add ((GSourceFunc) idle_load_editor, self);
 }
 
 static void
@@ -120,18 +208,17 @@ modest_window_mgr_init (ModestWindowMgr *obj)
 	ModestWindowMgrPrivate *priv;
 
 	priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
-	priv->window_list = NULL;
+	priv->banner_counter = 0;
 	priv->main_window = NULL;
-	priv->fullscreen_mode = FALSE;
 
 	priv->preregistered_uids = NULL;
 
-	/* Could not initialize it from gconf, singletons are not
-	   ready yet */
-	priv->show_toolbars = FALSE;
-	priv->show_toolbars_fullscreen = FALSE;
-	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->cached_view = NULL;
+	priv->cached_editor = NULL;
+
+	priv->windows_that_prevent_hibernation = NULL;
 }
 
 static void
@@ -139,35 +226,32 @@ modest_window_mgr_finalize (GObject *obj)
 {
 	ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 
-	if (priv->window_list) {
-		GList *iter = priv->window_list;
-		/* unregister pending windows */
-		while (iter) {
-			modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj), 
-							     MODEST_WINDOW (iter->data));
-			iter = g_list_next (iter);
-		}
-		g_list_free (priv->window_list);
-		priv->window_list = NULL;
+	if (priv->idle_load_view_id > 0) {
+		g_source_remove (priv->idle_load_view_id);
+		priv->idle_load_view_id = 0;
+	}
+	
+	if (priv->idle_load_editor_id > 0) {
+		g_source_remove (priv->idle_load_editor_id);
+		priv->idle_load_editor_id = 0;
 	}
-
-	g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
-	g_slist_free (priv->preregistered_uids);
-
 	
-	/* Free the hash table with the handlers */
-	if (priv->destroy_handlers) {
-		g_hash_table_destroy (priv->destroy_handlers);
-		priv->destroy_handlers = NULL;
+	if (priv->cached_view) {
+		gtk_widget_destroy (priv->cached_view);
+		priv->cached_view = NULL;
+	}
+	if (priv->cached_editor) {
+		gtk_widget_destroy (priv->cached_editor);
+		priv->cached_editor = NULL;
 	}
 
-	if (priv->viewer_handlers) {
-		g_hash_table_destroy (priv->viewer_handlers);
-		priv->viewer_handlers = NULL;
+	if (priv->windows_that_prevent_hibernation) {
+		g_slist_free (priv->windows_that_prevent_hibernation);
+		priv->cached_editor = NULL;
 	}
 
-	/* Do not unref priv->main_window because it does not hold a
-	   new reference */
+	g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
+	g_slist_free (priv->preregistered_uids);
 
 	G_OBJECT_CLASS(parent_class)->finalize (obj);
 }
@@ -206,7 +290,7 @@ remove_uid (GSList *list, const gchar *uid)
 	GSList *cursor = list, *start = list;
 	
 	if (!uid)
-		return FALSE;
+		return list;
 	
 	while (cursor) {
 		GSList *next = g_slist_next (cursor);
@@ -229,7 +313,7 @@ append_uid (GSList *list, const gchar *uid)
 
 
 void 
-modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header)
+modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 {
 	ModestWindowMgrPrivate *priv;
 	gchar* uid;
@@ -240,13 +324,15 @@ modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header)
 	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 	uid = modest_tny_folder_get_header_unique_id (header);
 
-
+	if (uid == NULL)
+		uid = g_strdup (alt_uid);
+	
 	if (!has_uid (priv->preregistered_uids, uid)) {
-		g_debug ("registering new uid %s", uid);
+		MODEST_DEBUG_BLOCK(g_debug ("registering new uid %s", uid););
 		priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 	} else
-		g_debug ("already had uid %s", uid);
-
+		MODEST_DEBUG_BLOCK(g_debug ("already had uid %s", uid););
+	
 	g_free (uid);
 }
 
@@ -261,52 +347,78 @@ modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 		
 	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 	uid = modest_tny_folder_get_header_unique_id (header);
-	
+
 	if (!has_uid (priv->preregistered_uids, uid)) {
-		g_debug ("trying to unregister non-existing uid %s", uid);
+		MODEST_DEBUG_BLOCK(g_debug ("trying to unregister non-existing uid %s", uid););
 		priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 	} else
-		g_debug ("unregistering uid %s", uid);
-
+		MODEST_DEBUG_BLOCK(g_debug ("unregistering uid %s", uid););
+	
 	if (has_uid (priv->preregistered_uids, uid)) {
 		priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 		if (has_uid (priv->preregistered_uids, uid))
 			g_debug ("BUG: uid %s NOT removed", uid);
 		else
-			g_debug ("uid %s removed", uid);
+			MODEST_DEBUG_BLOCK(g_debug ("uid %s removed", uid););
 	}
-
+		
 	g_free (uid);
 }
 
-static gint
-compare_msguids (ModestWindow *win,
-		 const gchar *uid)
-{
-	const gchar *msg_uid;
 
-	if (!MODEST_IS_MSG_VIEW_WINDOW (win))
-		return 1;
+#define MODEST_WINDOW_HELP_ID_PARAM "help-id"
+
+void
+modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
+{
+	/* we don't need 'self', but for API consistency... */
+	g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 
-	/* Get message uid from msg window */
-	msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
+	g_return_if_fail (win && GTK_IS_WINDOW(win));
+	g_return_if_fail (help_id);
 	
-	if (msg_uid && uid &&!strcmp (msg_uid, uid))
-		return 0;
-	else
-		return 1;
+	g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
+				g_strdup(help_id), g_free);
 }
 
 
+const gchar*
+modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
+{
+	/* we don't need 'self', but for API consistency... */
+	g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR (self), NULL);
+	g_return_val_if_fail (win, NULL);
+
+	return g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
+}
+
+gboolean
+modest_window_mgr_close_all_windows (ModestWindowMgr *self)
+{
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->close_all_windows (self);
+}
+
+static gboolean
+modest_window_mgr_close_all_windows_default (ModestWindowMgr *self)
+{
+	return TRUE;
+}
+
 
 gboolean
 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
-					  ModestWindow **win)
+						  ModestWindow **win)
 {
-	ModestWindowMgrPrivate *priv;
-	gchar* uid;
-	gboolean has_header, has_window = FALSE;
-	GList *item = NULL;
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->find_registered_header (self, header, win);
+}
+
+static gboolean
+modest_window_mgr_find_registered_header_default (ModestWindowMgr *self, TnyHeader *header,
+						  ModestWindow **win)
+{
+	ModestWindowMgrPrivate *priv = NULL;
+	gchar* uid = NULL;
+	gboolean has_header = FALSE;
 
 	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 	g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
@@ -317,59 +429,54 @@ modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *head
 	
 	if (win)
 		*win = NULL;
-	
-	g_debug ("windows in list: %d", g_list_length (priv->window_list));
-	g_debug ("headers in list: %d", g_slist_length (priv->preregistered_uids));
 
 	has_header = has_uid (priv->preregistered_uids, uid);
-		
-	item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
-	if (item) {
-		has_window = TRUE;
-		if (win) {
-			if (!MODEST_IS_MSG_VIEW_WINDOW(item->data))
-				g_debug ("not a valid window!");
-			else {
-				g_debug ("found a window");
-				*win = MODEST_WINDOW (item->data);
-			}
-		}
-	}
 
-	g_free (uid);
-	return has_header || has_window;
+	return has_header;
 }
 
+GList *
+modest_window_mgr_get_window_list (ModestWindowMgr *self)
+{
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->get_window_list (self);
+}
 
+static GList *
+modest_window_mgr_get_window_list_default (ModestWindowMgr *self)
+{
+	return NULL;
+}
 
-void 
+gboolean
 modest_window_mgr_register_window (ModestWindowMgr *self, 
-				   ModestWindow *window)
+				   ModestWindow *window,
+				   ModestWindow *parent)
+{
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->register_window (self, window, parent);
+}
+
+static gboolean
+modest_window_mgr_register_window_default (ModestWindowMgr *self, 
+					   ModestWindow *window,
+					   ModestWindow *parent)
 {
-	static gboolean first_time = TRUE;
-	GList *win;
-	gboolean show;
 	ModestWindowMgrPrivate *priv;
-	gint *handler_id;
 
-	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
-	g_return_if_fail (MODEST_IS_WINDOW (window));
+	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
+	g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 
 	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 
-	win = g_list_find (priv->window_list, window);
-	if (win) {
-		g_warning ("Trying to register an already registered window");
-		return;
-	}
-	
 	/* Check that it's not a second main window */
 	if (MODEST_IS_MAIN_WINDOW (window)) {
 		if (priv->main_window) {
-			g_warning ("Trying to register a second main window");
-			return;
+			g_warning ("%s: trying to register a second main window",
+				   __FUNCTION__);
+			return FALSE;
 		} else {
 			priv->main_window = window;
+			load_new_view (self);
+			load_new_editor (self);
 		}
 	}
 
@@ -378,294 +485,181 @@ modest_window_mgr_register_window (ModestWindowMgr *self,
 		const gchar *uid = modest_msg_view_window_get_message_uid
 			(MODEST_MSG_VIEW_WINDOW (window));
 
-		g_debug ("registering window for %s", uid);
-				
 		if (!has_uid (priv->preregistered_uids, uid)) 
 			g_debug ("weird: no uid for window (%s)", uid);
-
+		
+		MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid ? uid : "<none>"););
+		
 		priv->preregistered_uids = 
 			remove_uid (priv->preregistered_uids,
 				    modest_msg_view_window_get_message_uid
 				    (MODEST_MSG_VIEW_WINDOW (window)));
-	}
-	
-	/* Add to list. Keep a reference to the window */
-	g_object_ref (window);
-	priv->window_list = g_list_prepend (priv->window_list, window);
-
-	/* Listen to object destruction */
-	handler_id = g_malloc0 (sizeof (gint));
-	*handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
-	g_hash_table_insert (priv->destroy_handlers, window, handler_id);
-
-	/* If there is a msg view window, let the main window listen the msg-changed signal */
-	if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->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), 
-					     priv->main_window);
-		g_hash_table_insert (priv->viewer_handlers, window, handler);
-	}
-
-	/* Put into fullscreen if needed */
-	if (priv->fullscreen_mode)
-		gtk_window_fullscreen (GTK_WINDOW (window));
-
-	/* Fill caches */
-	if (first_time) {
-		ModestConf *conf = modest_runtime_get_conf ();
-		priv->show_toolbars = 
-			modest_conf_get_bool (conf, MODEST_CONF_SHOW_TOOLBAR, NULL);
-		priv->show_toolbars_fullscreen = 
-			modest_conf_get_bool (conf, MODEST_CONF_SHOW_TOOLBAR_FULLSCREEN, NULL);
-		first_time = FALSE;
-	}
-
-	/* Show/hide toolbar */
-	if (priv->fullscreen_mode)
-		show = priv->show_toolbars_fullscreen;
-	else
-		show = priv->show_toolbars;
-	modest_window_show_toolbar (window, show);
-}
+	} else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
+		const gchar *uid = modest_msg_edit_window_get_message_uid
+			(MODEST_MSG_EDIT_WINDOW (window));
+		
+		MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid););
 
-/* static void */
-/* on_window_destroy (ModestWindow *window, ModestWindowMgr *self) */
-static gboolean
-on_window_destroy (ModestWindow *window, 
-		   GdkEvent *event,
-		   ModestWindowMgr *self)
-{
-	/* Specific stuff first */
-	if (MODEST_IS_MAIN_WINDOW (window)) {
-		ModestWindowMgrPrivate *priv;
-		priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
-
-		/* If more than one window already opened */
-		if (g_list_length (priv->window_list) > 1) {
-
-			/* If the user wants to close all the windows */
-			if (modest_main_window_close_all (MODEST_MAIN_WINDOW (window))) {
-				GList *iter = priv->window_list;
-				do {
-					if (iter->data != window) {
-						GList *tmp = iter->next;
-						on_window_destroy (MODEST_WINDOW (iter->data),
-								   event,
-								   self);
-						iter = tmp;
-					} else {
-						iter = g_list_next (iter);
-					}
-				} while (iter);
-			}
-		}
-	}
-	else {
-		if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
-			gboolean sent = FALSE;
-			gint response = GTK_RESPONSE_ACCEPT;
-			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))) {
-				
-				response =
-					modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
-										 _("mcen_nc_no_email_message_modified_save_changes"));
-				/* Save to drafts */
-				if (response != GTK_RESPONSE_CANCEL) 				
-					modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window));
-				
-			}
-		}
+		priv->preregistered_uids = 
+			remove_uid (priv->preregistered_uids,
+				    modest_msg_edit_window_get_message_uid
+				    (MODEST_MSG_EDIT_WINDOW (window)));
 	}
 
-	/* Save configuration state (TODO: why edit window does not require this function ?) */
-	if (!MODEST_IS_MSG_EDIT_WINDOW (window)) 
-		modest_window_save_state (MODEST_WINDOW(window));
-
-
-	/* Unregister window */
-	modest_window_mgr_unregister_window (self, window);
-	
-	return FALSE;
-}
-
-static void
-disconnect_msg_changed (gpointer key, 
-			gpointer value, 
-			gpointer user_data)
-{
-	gulong *handler_id;
-
-	handler_id = (gulong *) value;
-	g_signal_handler_disconnect (G_OBJECT (key), *handler_id);
+	return TRUE;
 }
 
-
 void 
 modest_window_mgr_unregister_window (ModestWindowMgr *self, 
 				     ModestWindow *window)
 {
-	GList *win;
+	MODEST_WINDOW_MGR_GET_CLASS (self)->unregister_window (self, window);
+}
+
+static void 
+modest_window_mgr_unregister_window_default (ModestWindowMgr *self, 
+					     ModestWindow *window)
+{
 	ModestWindowMgrPrivate *priv;
-	gint *tmp, handler_id;
 
 	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 	g_return_if_fail (MODEST_IS_WINDOW (window));
 
 	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 
-	win = g_list_find (priv->window_list, window);
-	if (!win) {
-		g_warning ("Trying to unregister a window that has not being registered yet");
-		return;
-	}
-
-	/* If it's the main window unset it */
-	if (priv->main_window == window) {
-		priv->main_window = NULL;
-
-		/* Disconnect all emissions of msg-changed */
-		g_hash_table_foreach (priv->viewer_handlers, 
-				      disconnect_msg_changed, 
-				      NULL);
-		g_hash_table_destroy (priv->viewer_handlers);
-		priv->viewer_handlers = NULL;
-	}
-
 	/* Save state */
 	modest_window_save_state (window);
 
-	/* Remove from list & hash table */
-	priv->window_list = g_list_remove_link (priv->window_list, win);
-	tmp = g_hash_table_lookup (priv->destroy_handlers, window);
-	handler_id = *tmp;
-	g_hash_table_remove (priv->destroy_handlers, window);
-
-	/* Disconnect the "delete-event" handler, we won't need it anymore */
-	g_signal_handler_disconnect (window, handler_id);
-
+	/* Disconnect all the window signals */
+	modest_window_disconnect_signals (window);
+	
 	/* Destroy the window */
-	gtk_widget_destroy (win->data);
-
-	/* If there are no more windows registered then exit program */
-	if (priv->window_list == NULL) {
-		ModestConf *conf = modest_runtime_get_conf ();
-
-		/* Save show toolbar status */
-		modest_conf_set_bool (conf, MODEST_CONF_SHOW_TOOLBAR_FULLSCREEN, 
-				      priv->show_toolbars_fullscreen, NULL);
-		modest_conf_set_bool (conf, MODEST_CONF_SHOW_TOOLBAR, 
-				      priv->show_toolbars, NULL);
-
-		/* Quit main loop */
-		/* FIXME: do we ever need to do this here? */
-		if (gtk_main_level() > 0)
-			gtk_main_quit ();
-	}
+	gtk_widget_destroy (GTK_WIDGET (window));
 }
 
+
+
 void
 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 				       gboolean on)
 {
-	ModestWindowMgrPrivate *priv;
-	GList *win = NULL;
-
-	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
-
-	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
-
-	/* If there is no change do nothing */
-	if (priv->fullscreen_mode == on)
-		return;
-
-	priv->fullscreen_mode = on;
+	MODEST_WINDOW_MGR_GET_CLASS (self)->set_fullscreen_mode (self, on);
+}
 
-	/* Update windows */
-	win = priv->window_list;
-	while (win) {
-		if (on) {
-			gtk_window_fullscreen (GTK_WINDOW (win->data));
-			modest_window_show_toolbar (MODEST_WINDOW (win->data), 
-						    priv->show_toolbars_fullscreen);
-		} else {
-			gtk_window_unfullscreen (GTK_WINDOW (win->data));
-			modest_window_show_toolbar (MODEST_WINDOW (win->data), 
-						    priv->show_toolbars);
-		}
-		win = g_list_next (win);
-	}
+static void
+modest_window_mgr_set_fullscreen_mode_default (ModestWindowMgr *self,
+					       gboolean on)
+{
+	return;
 }
 
 gboolean
 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 {
-	ModestWindowMgrPrivate *priv;
-
-	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
-
-	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->get_fullscreen_mode (self);
+}
 
-	return priv->fullscreen_mode;
+static gboolean
+modest_window_mgr_get_fullscreen_mode_default (ModestWindowMgr *self)
+{
+	return FALSE;
 }
 
 void 
 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
+				 GType window_type,
 				 gboolean show_toolbars,
 				 gboolean fullscreen)
 {
-	ModestWindowMgrPrivate *priv;
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->show_toolbars (self, window_type, show_toolbars, fullscreen);
+}
 
+static void 
+modest_window_mgr_show_toolbars_default (ModestWindowMgr *self,
+					 GType window_type,
+					 gboolean show_toolbars,
+					 gboolean fullscreen)
+{
+	return;
+}
+
+void
+modest_window_mgr_set_main_window (ModestWindowMgr *self, ModestWindow *win)
+{
+	ModestWindowMgrPrivate *priv;
+	
 	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 
 	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+	priv->main_window = win;
+}
 
-	/* If nothing changes then return. Otherwise cache it, do not
-	   save to GConf for the moment, it will be done when all
-	   windows become unregistered in order to avoid unnecessary
-	   ModestConf calls */
-	if (fullscreen) {
-		if (priv->show_toolbars_fullscreen == show_toolbars)
-			return;
-		else
-			priv->show_toolbars_fullscreen = show_toolbars;
-	} else {
-		if (priv->show_toolbars == show_toolbars)
-			return;
-		else
-			priv->show_toolbars = show_toolbars;
-	}
+ModestWindow*  
+modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
+{
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->get_main_window (self, show);
+}
 
-	/* Apply now if the view mode is the right one */
-	if ((fullscreen && priv->fullscreen_mode) ||
-	    (!fullscreen && !priv->fullscreen_mode)) {
+static ModestWindow*  
+modest_window_mgr_get_main_window_default (ModestWindowMgr *self, gboolean show)
+{
+	ModestWindowMgrPrivate *priv;
+	
+	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 
-		GList *win = priv->window_list;
+	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+	if (priv->main_window)
+		return priv->main_window;
 
-		while (win) {
-			modest_window_show_toolbar (MODEST_WINDOW (win->data),
-						    show_toolbars);
-			win = g_list_next (win);
-		}
-	}
+	if (show) 
+		return modest_main_window_new ();
+	else return NULL;
 }
 
-ModestWindow*  
-modest_window_mgr_get_main_window (ModestWindowMgr *self)
+
+gboolean
+modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
 {
 	ModestWindowMgrPrivate *priv;
+	
+	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
+	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 
-	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
+	return priv->main_window != NULL;
+}
 
-	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 
-	return priv->main_window;
+GtkWindow *
+modest_window_mgr_get_modal (ModestWindowMgr *self)
+{
+	return MODEST_WINDOW_MGR_GET_CLASS (self)->get_modal (self);
+}
+
+static GtkWindow *
+modest_window_mgr_get_modal_default (ModestWindowMgr *self)
+{
+	return NULL;
+}
+
+
+void
+modest_window_mgr_set_modal (ModestWindowMgr *self, 
+			     GtkWindow *window,
+			     GtkWindow *parent)
+{
+	MODEST_WINDOW_MGR_GET_CLASS (self)->set_modal (self, window, parent);
 }
 
 static void
+modest_window_mgr_set_modal_default (ModestWindowMgr *self, 
+				     GtkWindow *window,
+				     GtkWindow *parent)
+{
+	return;
+}
+
+
+static void
 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
 {
 	ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
@@ -693,7 +687,8 @@ on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
 		G_CALLBACK (on_nonhibernating_window_hide), self);
 }
 
-void modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
+void
+modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
 								  GtkWindow *window)
 {
 	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
@@ -707,7 +702,8 @@ void modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMg
 	}
 }
 
-gboolean modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
+gboolean
+modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
 {
 	g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 	
@@ -719,22 +715,117 @@ gboolean modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
 }
 
 
-void modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
+void
+modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
 {
+	GList *window_list;
+	GList *node;
 	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 	
-	ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
-
 	/* Iterate over all windows */
-	GList *win = priv->window_list;
-	while (win) {
-		ModestWindow *window = MODEST_WINDOW (win->data);
+	window_list = modest_window_mgr_get_window_list (self);
+	node = window_list;
+	while (node) {
+		ModestWindow *window = MODEST_WINDOW (node->data);
 		if (window) {
 			/* This calls the vfunc, 
 			 * so each window can do its own thing: */
 			modest_window_save_state (window);
 		}	
 		
-		win = g_list_next (win);
+		node = g_list_next (node);
 	}
+	g_list_free (window_list);
+}
+
+gint 
+modest_window_mgr_num_windows (ModestWindowMgr *self)
+{
+	ModestWindowMgrPrivate *priv;
+	gint num_windows = 0;
+	GList *window_list;
+
+	g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), -1);
+	
+	priv =  MODEST_WINDOW_MGR_GET_PRIVATE(self);
+
+	window_list = modest_window_mgr_get_window_list (self);
+	
+	if (window_list) {
+		num_windows = g_list_length (window_list);
+		g_list_free (window_list);
+	}
+
+	/* Do not take into account the main window if it was hidden */
+	if (priv->main_window && !GTK_WIDGET_VISIBLE (priv->main_window))
+		num_windows--;
+
+	return num_windows + priv->banner_counter;
+}
+
+GtkWidget *   
+modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
+{
+	GtkWidget *result;
+	ModestWindowMgrPrivate *priv;
+
+	g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
+
+	priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
+		
+	if (priv->cached_editor) {
+		result = priv->cached_editor;
+		priv->cached_editor = NULL;
+		load_new_editor (self);
+	} else {
+		result = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
+	}
+
+	return result;
+}
+
+GtkWidget *   
+modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
+{
+	GtkWidget *result;
+	ModestWindowMgrPrivate *priv;
+
+	g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
+	
+	priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
+
+	if (priv->cached_view) {
+		result = priv->cached_view;
+		priv->cached_view = NULL;
+		load_new_view (self);
+	} else {
+		result = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
+	}
+
+	return result;
+}
+
+void           
+modest_window_mgr_register_banner (ModestWindowMgr *self)
+{
+	ModestWindowMgrPrivate *priv;
+
+	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
+	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+
+	priv->banner_counter++;
+	
+}
+
+void           
+modest_window_mgr_unregister_banner (ModestWindowMgr *self)
+{
+	ModestWindowMgrPrivate *priv;
+
+	g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
+	priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+
+	priv->banner_counter--;
+	if (modest_window_mgr_num_windows (self) == 0)
+		g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 }