Disable QUIT while saving a file

The problem is that if you are fast enough to do Ctrl-S and Ctrl-Q (and
the save is slow) the Quit action was executed before the Save finished.
The Save function modifies some GUI status but the window was already
closed because of Quit. And we get a crash.

Now the Quit action is ignored while a Save or Save-as is executing.

Fixes bug #1969
http://www.grisbi.org/bugsreports/view.php?id=1969

src/grisbi_app.c

@@ -299,6 +299,10 @@ static void grisbi_app_quit (GSimpleAction *action,
 
     app = GRISBI_APP (user_data);
 
+	/* do not exit while saving. See bug #1969 */
+	if (run.menu_save)
+		return;
+
     /* Remove all windows registered in the application */
     while ((l = gtk_application_get_windows (GTK_APPLICATION (app))))
     {

src/menu.c

@@ -444,7 +444,10 @@ void grisbi_cmd_file_save (GSimpleAction *action,
 						   GVariant *parameter,
 						   gpointer app)
 {
+	/* disable quit. See bug #1969 */
+	run.menu_save = TRUE;
 	gsb_file_save ();
+	run.menu_save = FALSE;
 }
 
 /**
@@ -460,7 +463,9 @@ void grisbi_cmd_file_save_as (GSimpleAction *action,
 							  GVariant *parameter,
 							  gpointer app)
 {
+	run.menu_save = TRUE;
 	gsb_file_save_as ();
+	run.menu_save = FALSE;
 }
 
 /**

src/structures.h

@@ -313,6 +313,7 @@ struct _GrisbiWinRun
     time_t		file_modification;
     gboolean	file_is_saving;
     gboolean	file_is_loading;
+    gboolean	menu_save;
 
     /* reconciliation */
     gint		equilibrage;