kconfig/lxdialog: support resize

In all dialogs now properly catch KEY_RESIZE and take proper action.
In mconf try to behave sensibly when a dialog routine returns
-ERRDISPLAYTOOSMALL.

The original check for a screnn size of 80x19 is kept for now.
It may make sense to remove it later, but thats anyway what
much text is adjusted for.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index ef75d6c3d3e5..f7abca434829 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -606,9 +606,8 @@ static void conf(struct menu *menu)
                 reset_dialog();
                 res = dialog_menu(prompt ? prompt : _("Main Menu"),
                                   _(menu_instructions),
-                                  rows, cols, rows - 10,
                                   active_menu, &s_scroll);
-                if (res == 1 || res == KEY_ESC)
+                if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
                         break;
                 if (!item_activate_selected())
                         continue;
@@ -617,7 +616,10 @@ static void conf(struct menu *menu)
 
                 submenu = item_data();
                 active_menu = item_data();
-                sym = submenu->sym;
+                if (submenu)
+                        sym = submenu->sym;
+                else
+                        sym = NULL;
 
                 switch (res) {
                 case 0:
@@ -683,7 +685,7 @@ static void conf(struct menu *menu)
 static void show_textbox(const char *title, const char *text, int r, int c)
 {
         reset_dialog();
-        dialog_textbox(title, text, r ? r : rows, c ? c : cols);
+        dialog_textbox(title, text, r, c);
 }
 
 static void show_helptext(const char *title, const char *text)
@@ -756,6 +758,8 @@ static void conf_choice(struct menu *menu)
                         break;
                 case KEY_ESC:
                         return;
+                case -ERRDISPLAYTOOSMALL:
+                        return;
                 }
         }
 }