Fix window update after hook execution

The introduction of hooks raised a problem with window updates. The diagnosis
in commit feb059e8 (Fix segmentation fault on reload with pre-load hook) was
right, the cure was wrong.

The problem is wins_update(), not the listbox contents. The wins_update() call
does not belong in wins_unprepare_external() (or in io_reload_data()), but at a
higher level. It should be called _after_ reload, as indeed it is in
key_generic_reload() when the listbox contents have been updated (todo as well
as appointments). The call was introduced in commit 8ae75f3 without comment.

The todo updates in io_reload_data() also belong in key_generic_reload() where
they were before commit 7f06c252.

When saving data, all panels must be updated in case a hook was executed.

Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk>
Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>

src/calcurse.c

@@ -272,17 +272,19 @@ static inline void key_generic_help(void)
 static inline void key_generic_save(void)
 {
 	io_save_cal(IO_SAVE_DISPLAY_BAR);
-	wins_update(FLAG_STA);
+	wins_update(FLAG_ALL);
 }
 
 static inline void key_generic_reload(void)
 {
 	if (io_reload_data()) {
+		ui_todo_load_items();
+		ui_todo_sel_reset();
 		do_storage(0);
 		notify_check_next_app(1);
 		ui_calendar_monthly_view_cache_set_invalid();
-		wins_update(FLAG_ALL);
 	}
+	wins_update(FLAG_ALL);
 }
 
 static inline void key_generic_import(void)

src/io.c

@@ -935,7 +935,6 @@ int io_reload_data(void)
 		case 3:
 			/* FALLTHROUGH */
 		default:
-			wins_update(FLAG_STA);
 			goto cleanup;
 		}
 	}
@@ -961,20 +960,10 @@ int io_reload_data(void)
 	recur_event_llist_init();
 	todo_init_list();
 
-	/*
-	 * Temporarily reinitialize the todo list box without any items to make
-	 * sure wins_unprepare_external() does not fail when it is called after
-	 * executing the pre-load hook.
-	 */
-	ui_todo_load_items();
-	ui_todo_sel_reset();
-
 	io_load_data(NULL);
 	run_hook("post-load");
 
 	io_unset_modified();
-	ui_todo_load_items();
-	ui_todo_sel_reset();
 
 	if (show_dialogs()) {
 		status_mesg(reload_success, enter);

src/wins.c

@@ -613,7 +613,6 @@ void wins_unprepare_external(void)
 	ui_mode = UI_CURSES;
 	wins_refresh();
 	wins_resize();
-	wins_update(FLAG_ALL);
 	if (notify_bar())
 		notify_start_main_thread();
 	if (conf.periodic_save > 0)