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authorPali Rohár <pali.rohar@gmail.com>2013-03-23 14:50:40 +0000
committerAnatolij Gustschin <agust@denx.de>2013-03-29 09:35:33 +0100
commitfc9d64ffcd94c1e22675830eae13956cc4fd822d (patch)
treef14a977c82a3fb1ee3f606d71f8c1ff5306ee1f1 /common/menu.c
parent009d75ccc11d27b9a083375a88bb93cb746b4800 (diff)
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menu: Add support for user defined item choice function
Selecting menu items is currently done in menu_interactive_choice() by reading the user input strings from standard input. Extend menu_interactive_choice() to support user defined function for selecting menu items. This function and its argument can be specified when creating the menu. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'common/menu.c')
-rw-r--r--common/menu.c42
1 files changed, 31 insertions, 11 deletions
diff --git a/common/menu.c b/common/menu.c
index 6b2a2db..322b75e 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -47,6 +47,8 @@ struct menu {
char *title;
int prompt;
void (*item_data_print)(void *);
+ char *(*item_choice)(void *);
+ void *item_choice_data;
struct list_head items;
};
@@ -204,18 +206,26 @@ static inline int menu_interactive_choice(struct menu *m, void **choice)
menu_display(m);
- readret = readline_into_buffer("Enter choice: ", cbuf,
- m->timeout / 10);
+ if (!m->item_choice) {
+ readret = readline_into_buffer("Enter choice: ", cbuf,
+ m->timeout / 10);
- if (readret >= 0) {
- choice_item = menu_item_by_key(m, cbuf);
-
- if (!choice_item) {
- printf("%s not found\n", cbuf);
- m->timeout = 0;
+ if (readret >= 0) {
+ choice_item = menu_item_by_key(m, cbuf);
+ if (!choice_item)
+ printf("%s not found\n", cbuf);
+ } else {
+ return menu_default_choice(m, choice);
}
- } else
- return menu_default_choice(m, choice);
+ } else {
+ char *key = m->item_choice(m->item_choice_data);
+
+ if (key)
+ choice_item = menu_item_by_key(m, key);
+ }
+
+ if (!choice_item)
+ m->timeout = 0;
}
*choice = choice_item->data;
@@ -348,11 +358,19 @@ int menu_item_add(struct menu *m, char *item_key, void *item_data)
* what must be entered to select an item, the item_data_print function should
* make it obvious what the key for each entry is.
*
+ * item_choice - If not NULL, will be called when asking the user to choose an
+ * item. Returns a key string corresponding to the choosen item or NULL if
+ * no item has been selected.
+ *
+ * item_choice_data - Will be passed as the argument to the item_choice function
+ *
* Returns a pointer to the menu if successful, or NULL if there is
* insufficient memory available to create the menu.
*/
struct menu *menu_create(char *title, int timeout, int prompt,
- void (*item_data_print)(void *))
+ void (*item_data_print)(void *),
+ char *(*item_choice)(void *),
+ void *item_choice_data)
{
struct menu *m;
@@ -365,6 +383,8 @@ struct menu *menu_create(char *title, int timeout, int prompt,
m->prompt = prompt;
m->timeout = timeout;
m->item_data_print = item_data_print;
+ m->item_choice = item_choice;
+ m->item_choice_data = item_choice_data;
if (title) {
m->title = strdup(title);