diff --git a/scripts/kconfig/lxdialog/checklist.c b/scripts/kconfig/lxdialog/checklist.c
index 282511020bcb64b9de9f5bf9d100acfce8065fa0..39becb72444a70aedc8132f2a0f078b4fd8bcb0a 100644
--- a/scripts/kconfig/lxdialog/checklist.c
+++ b/scripts/kconfig/lxdialog/checklist.c
@@ -192,7 +192,7 @@ int dialog_checklist(const char *title, const char *prompt, int height,
wnoutrefresh(list);
doupdate();
- while (key != ESC) {
+ while (key != KEY_ESC) {
key = wgetch(dialog);
for (i = 0; i < max_choice; i++) {
@@ -298,8 +298,10 @@ int dialog_checklist(const char *title, const char *prompt, int height,
break;
case 'X':
case 'x':
- key = ESC;
- case ESC:
+ key = KEY_ESC;
+ break;
+ case KEY_ESC:
+ key = on_key_esc(dialog);
break;
}
@@ -308,5 +310,5 @@ int dialog_checklist(const char *title, const char *prompt, int height,
}
delwin(list);
delwin(dialog);
- return 255; /* ESC pressed */
+ return key; /* ESC pressed */
}
diff --git a/scripts/kconfig/lxdialog/dialog.h b/scripts/kconfig/lxdialog/dialog.h
index 065ded0a449f2c7c9f3ee8f2ea71a40dccaa3fad..a7cfdecc2409b695cd8cd063b15e3fa8a9a8cd5d 100644
--- a/scripts/kconfig/lxdialog/dialog.h
+++ b/scripts/kconfig/lxdialog/dialog.h
@@ -48,7 +48,7 @@
#define TR(params) _tracef params
-#define ESC 27
+#define KEY_ESC 27
#define TAB 9
#define MAX_LEN 2048
#define BUF_SIZE (10*1024)
@@ -179,6 +179,8 @@ int item_is_tag(char tag);
for (item_cur = item_head ? item_head: item_cur; \
item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
+/* generic key handlers */
+int on_key_esc(WINDOW *win);
void init_dialog(const char *backtitle);
void reset_dialog(void);
diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
index 9c53098d6b741de2e90cccc415471885ac8ec4ea..edb7975dbaa2e2a69b6f9af4503b9ef90971ff73 100644
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -106,7 +106,7 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
wrefresh(dialog);
- while (key != ESC) {
+ while (key != KEY_ESC) {
key = wgetch(dialog);
if (button == -1) { /* Input box selected */
@@ -215,12 +215,14 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
return (button == -1 ? 0 : button);
case 'X':
case 'x':
- key = ESC;
- case ESC:
+ key = KEY_ESC;
+ break;
+ case KEY_ESC:
+ key = on_key_esc(dialog);
break;
}
}
delwin(dialog);
- return 255; /* ESC pressed */
+ return KEY_ESC; /* ESC pressed */
}
diff --git a/scripts/kconfig/lxdialog/menubox.c b/scripts/kconfig/lxdialog/menubox.c
index f39ae29f4fcc10165b34f421fd07c69eadcb74ac..d3305bad15c7a115b4345b4e83cb8bd7e9675250 100644
--- a/scripts/kconfig/lxdialog/menubox.c
+++ b/scripts/kconfig/lxdialog/menubox.c
@@ -263,7 +263,7 @@ int dialog_menu(const char *title, const char *prompt, int height, int width,
wmove(menu, choice, item_x + 1);
wrefresh(menu);
- while (key != ESC) {
+ while (key != KEY_ESC) {
key = wgetch(menu);
if (key < 256 && isalpha(key))
@@ -402,12 +402,14 @@ int dialog_menu(const char *title, const char *prompt, int height, int width,
return button;
case 'e':
case 'x':
- key = ESC;
- case ESC:
+ key = KEY_ESC;
+ break;
+ case KEY_ESC:
+ key = on_key_esc(menu);
break;
}
}
delwin(menu);
delwin(dialog);
- return 255; /* ESC pressed */
+ return key; /* ESC pressed */
}
diff --git a/scripts/kconfig/lxdialog/textbox.c b/scripts/kconfig/lxdialog/textbox.c
index 86b0770b03877313f1cbe56e25ec3672c2354820..a99e1f497d67e54cc4fd1ec63db2b2ec72f88f1f 100644
--- a/scripts/kconfig/lxdialog/textbox.c
+++ b/scripts/kconfig/lxdialog/textbox.c
@@ -92,7 +92,7 @@ int dialog_textbox(const char *title, const char *tbuf, int height, int width)
wmove(dialog, cur_y, cur_x); /* Restore cursor position */
wrefresh(dialog);
- while ((key != ESC) && (key != '\n')) {
+ while ((key != KEY_ESC) && (key != '\n')) {
key = wgetch(dialog);
switch (key) {
case 'E': /* Exit */
@@ -228,13 +228,14 @@ int dialog_textbox(const char *title, const char *tbuf, int height, int width)
wmove(dialog, cur_y, cur_x);
wrefresh(dialog);
break;
- case ESC:
+ case KEY_ESC:
+ key = on_key_esc(dialog);
break;
}
}
delwin(text);
delwin(dialog);
- return 255; /* ESC pressed */
+ return key; /* ESC pressed */
}
/*
diff --git a/scripts/kconfig/lxdialog/util.c b/scripts/kconfig/lxdialog/util.c
index 0b3118df50df0ca37cfcce172c8d8386916c51d2..cb21dc4dd9fc21fe697a855f5e5258c07cabb646 100644
--- a/scripts/kconfig/lxdialog/util.c
+++ b/scripts/kconfig/lxdialog/util.c
@@ -477,6 +477,39 @@ int first_alpha(const char *string, const char *exempt)
return 0;
}
+/*
+ * ncurses uses ESC to detect escaped char sequences. This resutl in
+ * a small timeout before ESC is actually delivered to the application.
+ * lxdialog suggest <ESC> <ESC> which is correctly translated to two
+ * times esc. But then we need to ignore the second esc to avoid stepping
+ * out one menu too much. Filter away all escaped key sequences since
+ * keypad(FALSE) turn off ncurses support for escape sequences - and thats
+ * needed to make notimeout() do as expected.
+ */
+int on_key_esc(WINDOW *win)
+{
+ int key;
+ int key2;
+ int key3;
+
+ nodelay(win, TRUE);
+ keypad(win, FALSE);
+ key = wgetch(win);
+ key2 = wgetch(win);
+ do {
+ key3 = wgetch(win);
+ } while (key3 != ERR);
+ nodelay(win, FALSE);
+ keypad(win, TRUE);
+ if (key == KEY_ESC && key2 == ERR)
+ return KEY_ESC;
+ else if (key != ERR && key != KEY_ESC && key2 == ERR)
+ ungetch(key);
+
+ return -1;
+}
+
+
struct dialog_list *item_cur;
struct dialog_list item_nil;
struct dialog_list *item_head;
diff --git a/scripts/kconfig/lxdialog/yesno.c b/scripts/kconfig/lxdialog/yesno.c
index 9fc24492c52f3a0c7c406ce9fb130bc59ef16780..8364f9dd01c3340f8676cc9d7c70ad35a599e0f2 100644
--- a/scripts/kconfig/lxdialog/yesno.c
+++ b/scripts/kconfig/lxdialog/yesno.c
@@ -69,7 +69,7 @@ int dialog_yesno(const char *title, const char *prompt, int height, int width)
print_buttons(dialog, height, width, 0);
- while (key != ESC) {
+ while (key != KEY_ESC) {
key = wgetch(dialog);
switch (key) {
case 'Y':
@@ -93,11 +93,12 @@ int dialog_yesno(const char *title, const char *prompt, int height, int width)
case '\n':
delwin(dialog);
return button;
- case ESC:
+ case KEY_ESC:
+ key = on_key_esc(dialog);
break;
}
}
delwin(dialog);
- return 255; /* ESC pressed */
+ return key; /* ESC pressed */
}
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index b1ad9a00ab19c9ee3149b379afbd2665ec9697e9..ef75d6c3d3e52806f27c52c8af3ca3d7a697a048 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -608,7 +608,7 @@ static void conf(struct menu *menu)
_(menu_instructions),
rows, cols, rows - 10,
active_menu, &s_scroll);
- if (res == 1 || res == 255)
+ if (res == 1 || res == KEY_ESC)
break;
if (!item_activate_selected())
continue;
@@ -754,7 +754,7 @@ static void conf_choice(struct menu *menu)
} else
show_help(menu);
break;
- case 255:
+ case KEY_ESC:
return;
}
}
@@ -794,7 +794,7 @@ static void conf_string(struct menu *menu)
case 1:
show_help(menu);
break;
- case 255:
+ case KEY_ESC:
return;
}
}
@@ -819,7 +819,7 @@ static void conf_load(void)
case 1:
show_helptext(_("Load Alternate Configuration"), load_config_help);
break;
- case 255:
+ case KEY_ESC:
return;
}
}
@@ -843,7 +843,7 @@ static void conf_save(void)
case 1:
show_helptext(_("Save Alternate Configuration"), save_config_help);
break;
- case 255:
+ case KEY_ESC:
return;
}
}
@@ -883,12 +883,15 @@ int main(int ac, char **av)
init_wsize();
reset_dialog();
init_dialog(menu_backtitle);
- conf(&rootmenu);
- reset_dialog();
- res = dialog_yesno(NULL,
- _("Do you wish to save your "
- "new kernel configuration?"),
- 5, 60);
+ do {
+ conf(&rootmenu);
+ reset_dialog();
+ res = dialog_yesno(NULL,
+ _("Do you wish to save your "
+ "new kernel configuration?\n"
+ "<ESC><ESC> to continue."),
+ 6, 60);
+ } while (res == KEY_ESC);
end_dialog();
if (res == 0) {
if (conf_write(NULL)) {