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, 15 insertions, 5 deletions

diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
index edb7975dbaa2..05e72066b359 100644
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -49,6 +49,17 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
         char *instr = dialog_input_result;
         WINDOW *dialog;
 
+        if (!init)
+                instr[0] = '\0';
+        else
+                strcpy(instr, init);
+
+do_resize:
+        if (getmaxy(stdscr) <= (height - 2))
+                return -ERRDISPLAYTOOSMALL;
+        if (getmaxx(stdscr) <= (width - 2))
+                return -ERRDISPLAYTOOSMALL;
+
         /* center dialog box on screen */
         x = (COLS - width) / 2;
         y = (LINES - height) / 2;
@@ -86,11 +97,6 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
         wmove(dialog, box_y, box_x);
         wattrset(dialog, dlg.inputbox.atr);
 
-        if (!init)
-                instr[0] = '\0';
-        else
-                strcpy(instr, init);
-
         input_x = strlen(instr);
 
         if (input_x >= box_width) {
@@ -220,6 +226,10 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
                 case KEY_ESC:
                         key = on_key_esc(dialog);
                         break;
+                case KEY_RESIZE:
+                        delwin(dialog);
+                        on_key_resize();
+                        goto do_resize;
                 }
         }