From 2a66fbdaf9f18297d6d162f50125f682c4e73bbf Mon Sep 17 00:00:00 2001
From: Henadzi Simonovich <13178207+simonovich@users.noreply.github.com>
Date: Wed, 27 Jul 2022 15:38:04 +0300
Subject: [PATCH] Fix using BACKSPACE key in input dialogs

---
 src/Input/InputIO.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Input/InputIO.php b/src/Input/InputIO.php
index 14f81d5..51e293c 100644
--- a/src/Input/InputIO.php
+++ b/src/Input/InputIO.php
@@ -75,9 +75,11 @@ public function collect(Input $input) : InputResult
                         }
 
                     case InputCharacter::BACKSPACE:
-                        $inputValue = substr($inputValue, 0, -1);
-                        $this->parentMenu->redraw();
-                        $this->drawInput($input, $inputValue);
+                        if (!empty($inputValue)) {
+                            $inputValue = substr($inputValue, 0, -1);
+                            $this->parentMenu->redraw();
+                            $this->drawInput($input, $inputValue);
+                        }
                         continue 2;
                 }