From a430c7f5435c2f5dd82418c05495b12938e0ac2b Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Mon, 11 Apr 2016 18:02:50 +0200
Subject: [PATCH] Add experimental menu_entries_push/file_list_push

---
 libretro-common/include/lists/file_list.h |  5 +++
 libretro-common/lists/file_list.c         | 43 +++++++++++++++++++++++
 menu/menu_displaylist.c                   |  7 ++++
 menu/menu_entries.c                       | 34 ++++++++++++++++++
 menu/menu_entries.h                       |  3 ++
 5 files changed, 92 insertions(+)

diff --git a/libretro-common/include/lists/file_list.h b/libretro-common/include/lists/file_list.h
index 849c5a5f0d..60664fbdb5 100644
--- a/libretro-common/include/lists/file_list.h
+++ b/libretro-common/include/lists/file_list.h
@@ -65,6 +65,11 @@ bool file_list_append(file_list_t *userdata, const char *path,
       const char *label, unsigned type, size_t current_directory_ptr,
       size_t entry_index);
 
+bool file_list_push(file_list_t *list,
+      const char *path, const char *label,
+      unsigned type, size_t directory_ptr,
+      size_t entry_idx);
+
 void file_list_pop(file_list_t *list, size_t *directory_ptr);
 
 void file_list_clear(file_list_t *list);
diff --git a/libretro-common/lists/file_list.c b/libretro-common/lists/file_list.c
index 736a24bdef..2051f23550 100644
--- a/libretro-common/lists/file_list.c
+++ b/libretro-common/lists/file_list.c
@@ -59,6 +59,49 @@ static bool file_list_capacity(file_list_t *list, size_t cap)
    return true;
 }
 
+bool file_list_push(file_list_t *list,
+      const char *path, const char *label,
+      unsigned type, size_t directory_ptr,
+      size_t entry_idx)
+{
+   unsigned i;
+   if (list->size >= list->capacity &&
+      !file_list_capacity(list, list->capacity * 2 + 1))
+         return false;
+
+   list->size++;
+
+   for (i = list->size -1; i > 0; i--)
+   {
+      file_list_t *copy = calloc(1, sizeof(file_list_t));
+      
+      memcpy(copy, &list->list[i-1], sizeof(file_list_t));
+
+      memcpy(&list->list[i-1], &list->list[i], sizeof(file_list_t));
+      memcpy(&list->list[i],             copy, sizeof(file_list_t));
+
+      free(copy);
+   }
+
+   memset(&list->list[0], 0, sizeof(file_list_t));
+
+   list->list[0].label         = NULL;
+   list->list[0].path          = NULL;
+   list->list[0].alt           = NULL;
+   list->list[0].userdata      = NULL;
+   list->list[0].actiondata    = NULL;
+   list->list[0].type          = type;
+   list->list[0].directory_ptr = directory_ptr;
+   list->list[0].entry_idx     = entry_idx;
+
+   if (label)
+      list->list[0].label      = strdup(label);
+   if (path)
+      list->list[0].path       = strdup(path);
+
+   return true;
+}
+
 bool file_list_append(file_list_t *list,
       const char *path, const char *label,
       unsigned type, size_t directory_ptr,
diff --git a/menu/menu_displaylist.c b/menu/menu_displaylist.c
index 8c8db4df97..14fc244a22 100644
--- a/menu/menu_displaylist.c
+++ b/menu/menu_displaylist.c
@@ -2345,6 +2345,13 @@ static int menu_displaylist_parse_add_content_list(
          MENU_SETTING_ACTION, 0, 0);
 #endif
 
+#if 0
+   menu_entries_push(info->list,
+         "Daddy is talking shit",
+         "daddys_talking_shit",
+         MENU_SETTING_ACTION, 0, 0);
+#endif
+
    return 0;
 }
 
diff --git a/menu/menu_entries.c b/menu/menu_entries.c
index e663f562ee..74080ddf33 100644
--- a/menu/menu_entries.c
+++ b/menu/menu_entries.c
@@ -536,6 +536,40 @@ void menu_entries_add(file_list_t *list, const char *path, const char *label,
    menu_cbs_init(list, cbs, path, label, type, idx);
 }
 
+void menu_entries_push(file_list_t *list, const char *path, const char *label,
+      unsigned type, size_t directory_ptr, size_t entry_idx)
+{
+   menu_ctx_list_t list_info;
+   size_t idx;
+   menu_file_list_cbs_t *cbs       = NULL;
+   if (!list || !label)
+      return;
+
+   file_list_push(list, path, label, type, directory_ptr, entry_idx);
+
+   idx              = 0;
+
+   list_info.list   = list;
+   list_info.path   = path;
+   list_info.label  = label;
+   list_info.idx    = idx;
+
+   menu_driver_ctl(RARCH_MENU_CTL_LIST_INSERT, &list_info);
+
+   file_list_free_actiondata(list, idx);
+   cbs = (menu_file_list_cbs_t*)
+      calloc(1, sizeof(menu_file_list_cbs_t));
+
+   if (!cbs)
+      return;
+
+   file_list_set_actiondata(list, idx, cbs);
+
+   cbs->setting = menu_setting_find(label);
+
+   menu_cbs_init(list, cbs, path, label, type, idx);
+}
+
 menu_file_list_cbs_t *menu_entries_get_last_stack_actiondata(void)
 {
    menu_list_t *menu_list         = NULL;
diff --git a/menu/menu_entries.h b/menu/menu_entries.h
index 61d903aa33..9f164dbfb0 100644
--- a/menu/menu_entries.h
+++ b/menu/menu_entries.h
@@ -174,6 +174,9 @@ void menu_entries_set_alt_at_offset(file_list_t *list, size_t idx,
 
 rarch_setting_t *menu_entries_get_setting(uint32_t i);
 
+void menu_entries_push(file_list_t *list, const char *path, const char *label,
+      unsigned type, size_t directory_ptr, size_t entry_idx);
+
 bool menu_entries_ctl(enum menu_entries_ctl_state state, void *data);
 
 #ifdef __cplusplus