fixes and improves tab navigation mechanism.

src/ui/widget/dialogue.h

@@ -2,6 +2,7 @@
 #define DIALOGUE_H
 
 #include "../widget.h"
+#include "../../common.h"
 #include "button.h"
 #include "group.h"
 #include <ncurses.h>
@@ -17,16 +18,14 @@ typedef struct {
   struct {
     int32_t id;
     enum g_type type;
-    uint32_t y, x;
   } active;
-  uint32_t cur_y;
-  uint32_t cur_x;
   char text[DIALOGUE_TEXT];
   uint32_t is_initiated : 1;
+  coordinates_t *p_coordinates;
 } dialogue_t;
 
 void init_dialogue(dialogue_t *d, const char title[], const char text[],
-                   uint32_t cur_x, uint32_t cur_y);
+                   coordinates_t *p_coordinates);
 int32_t draw_dialogue(dialogue_t *d);
 void destroy_dialogue(dialogue_t *d);
 void dialogue_default_callback(callback_args_t *args);