expo: Convert to using a string ID for the scene title

This is easier to deal with if it uses the existing string handling,
since we will be able to use translations, etc. in the future.

Update it to use an ID instead of a string.

Signed-off-by: Simon Glass <sjg@chromium.org>

3 files changed, 17 insertions, 20 deletions

diff --git a/boot/scene.c b/boot/scene.c
index 030f6aa..d2f77c0 100644
--- a/boot/scene.c
+++ b/boot/scene.c
@@ -65,16 +65,12 @@ void scene_destroy(struct scene *scn)
 		scene_obj_destroy(obj);
 
 	free(scn->name);
-	free(scn->title);
 	free(scn);
 }
 
-int scene_title_set(struct scene *scn, const char *title)
+int scene_title_set(struct scene *scn, uint id)
 {
-	free(scn->title);
-	scn->title = strdup(title);
-	if (!scn->title)
-		return log_msg_ret("tit", -ENOMEM);
+	scn->title_id = id;
 
 	return 0;
 }
diff --git a/include/expo.h b/include/expo.h
index d242f48..8827f4b 100644
--- a/include/expo.h
+++ b/include/expo.h
@@ -92,7 +92,7 @@ struct expo_string {
  * @expo: Expo this scene is part of
  * @name: Name of the scene (allocated)
  * @id: ID number of the scene
- * @title: Title of the scene (allocated)
+ * @title_id: String ID of title of the scene (allocated)
  * @sibling: Node to link this scene to its siblings
  * @obj_head: List of objects in the scene
  */
@@ -100,7 +100,7 @@ struct scene {
 	struct expo *expo;
 	char *name;
 	uint id;
-	char *title;
+	uint title_id;
 	struct list_head sibling;
 	struct list_head obj_head;
 };
@@ -338,10 +338,10 @@ struct scene *expo_lookup_scene_id(struct expo *exp, uint scene_id);
  * scene_title_set() - set the scene title
  *
  * @scn: Scene to update
- * @title: Title to set, NULL if none (this is allocated by this call)
- * Returns: 0 if OK, -ENOMEM if out of memory
+ * @title_id: Title ID to set
+ * Returns: 0 if OK
  */
-int scene_title_set(struct scene *scn, const char *title);
+int scene_title_set(struct scene *scn, uint title_id);
 
 /**
  * scene_obj_count() - Count the number of objects in a scene
diff --git a/test/boot/expo.c b/test/boot/expo.c
index 7104dff..3c0bc78 100644
--- a/test/boot/expo.c
+++ b/test/boot/expo.c
@@ -28,6 +28,8 @@ enum {
 	OBJ_MENU_TITLE,
 
 	/* strings */
+	STR_SCENE_TITLE,
+
 	STR_TEXT,
 	STR_TEXT2,
 	STR_MENU_TITLE,
@@ -120,7 +122,7 @@ static int expo_scene(struct unit_test_state *uts)
 	struct expo *exp;
 	ulong start_mem;
 	char name[100];
-	int id;
+	int id, title_id;
 
 	start_mem = ut_check_free();
 
@@ -141,21 +143,20 @@ static int expo_scene(struct unit_test_state *uts)
 	ut_asserteq_str(SCENE_NAME1, scn->name);
 
 	/* Set the title */
-	strcpy(name, SCENE_TITLE);
-	ut_assertok(scene_title_set(scn, name));
-	*name = '\0';
-	ut_assertnonnull(scn->title);
-	ut_asserteq_str(SCENE_TITLE, scn->title);
+	title_id = expo_str(exp, "title", STR_SCENE_TITLE, SCENE_TITLE);
+	ut_assert(title_id >= 0);
 
-	/* Use an allocated ID */
+	/* Use an allocated ID - this will be allocated after the title str */
 	scn = NULL;
 	id = scene_new(exp, SCENE_NAME2, 0, &scn);
 	ut_assertnonnull(scn);
-	ut_asserteq(SCENE2, id);
-	ut_asserteq(SCENE2 + 1, exp->next_id);
+	ut_assertok(scene_title_set(scn, title_id));
+	ut_asserteq(STR_SCENE_TITLE + 1, id);
+	ut_asserteq(STR_SCENE_TITLE + 2, exp->next_id);
 	ut_asserteq_ptr(exp, scn->expo);
 
 	ut_asserteq_str(SCENE_NAME2, scn->name);
+	ut_asserteq(title_id, scn->title_id);
 
 	expo_destroy(exp);