From e3356fde2de41b29989b4e8884f04b2be763256f Mon Sep 17 00:00:00 2001
From: Xavier Del Campo Romero <xavi.dcr@tutanota.com>
Date: Tue, 20 Sep 2022 17:31:17 +0200
Subject: [PATCH] gui: Implement gui_deinit

---
 src/gui/inc/gui.h |  2 ++
 src/gui/src/gui.c | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/gui/inc/gui.h b/src/gui/inc/gui.h
index 9093572..72b2fb0 100644
--- a/src/gui/inc/gui.h
+++ b/src/gui/inc/gui.h
@@ -20,6 +20,7 @@ struct gui_common
             const struct camera *, struct input *);
         int (*render)(const struct gui_common *);
         void (*get_dim)(const struct gui_common *, short *w, short *h);
+        void (*deinit)(struct gui_common *, struct input *);
     } *cb;
 
     short x, y, xoff, yoff;
@@ -32,6 +33,7 @@ void gui_add_sibling(struct gui_common *g, struct gui_common *sibling);
 int gui_update(struct gui_common *g, const union peripheral *p,
     const struct camera *c, struct input *in);
 int gui_render(const struct gui_common *g);
+void gui_deinit(struct gui_common *g, struct input *in);
 
 #ifdef __cplusplus
 }
diff --git a/src/gui/src/gui.c b/src/gui/src/gui.c
index b99300b..e8bd4d7 100644
--- a/src/gui/src/gui.c
+++ b/src/gui/src/gui.c
@@ -182,3 +182,15 @@ int gui_render(const struct gui_common *const g)
 
     return 0;
 }
+
+void gui_deinit(struct gui_common *const g, struct input *const in)
+{
+    if (g->cb && g->cb->deinit)
+        g->cb->deinit(g, in);
+
+    if (g->child)
+        gui_deinit(g->child, in);
+
+    for (struct gui_common *s = g->sibling; s; s = s->sibling)
+        gui_deinit(s, in);
+}