[PATCH] menu: add vi like key support

[DU HUANPENG]

From: Du Huanpeng <u74147 at gmail.com>

add vi like key support:
        j: down
        k: up
  <Space>: select

Signed-off-by: Du Huanpeng <u74147 at gmail.com>
---
 common/menu.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/common/menu.c b/common/menu.c
index 54f2c71..51b4cfc 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -327,6 +327,7 @@ int menu_show(struct menu *m)
 			}
 			break;
 		}
+		case 'k':
 		case BB_KEY_UP:
 			m->selected = list_entry(m->selected->list.prev, struct menu_entry,
 						 list);
@@ -336,6 +337,7 @@ int menu_show(struct menu *m)
 			}
 			repaint = 1;
 			break;
+		case 'j':
 		case BB_KEY_DOWN:
 			m->selected = list_entry(m->selected->list.next, struct menu_entry,
 						 list);
@@ -346,13 +348,13 @@ int menu_show(struct menu *m)
 			repaint = 1;
 			break;
 		case ' ':
-			if (m->selected->type != MENU_ENTRY_BOX)
-				break;
-			m->selected->box_state = !m->selected->box_state;
-			if (m->selected->action)
-				m->selected->action(m, m->selected);
-			repaint = 1;
-			break;
+			if (m->selected->type == MENU_ENTRY_BOX) {
+				m->selected->box_state = !m->selected->box_state;
+				if (m->selected->action)
+					m->selected->action(m, m->selected);
+				repaint = 1;
+			}
+			/* no break */
 		case BB_KEY_ENTER:
 			if (ch_previous == BB_KEY_RETURN)
 				break;
-- 
1.9.1