From b06d56b9453f81d96b804697b004af7354126f85 Mon Sep 17 00:00:00 2001
From: Lorenzo Cogotti <lcg@doublefourteen.io>
Date: Sun, 2 Oct 2022 17:54:00 +0200
Subject: [PATCH] [input] Invoke onChange() on text change.

---
 input.lua | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/input.lua b/input.lua
index b72768b..7cc0a26 100644
--- a/input.lua
+++ b/input.lua
@@ -85,6 +85,8 @@ function Input:textinput(text)
 
         self.text = table.concat {a, text, b}
         self.cursor = self.cursor + utf8.len(text)
+
+        self:onChange(self.text)
     end
 end
 
@@ -100,21 +102,22 @@ function Input:keypressed(key, code, isrepeat)
     end
 
     if self.candidate.length == 0 then
-        if key == 'backspace' then
+        if key == 'backspace' and self.cursor > 1 then
             local a,b = split(self.text, self.cursor)
 
             self.text = table.concat { split(a, utf8.len(a)), b }
-            self.cursor = math.max(1, self.cursor-1)
+            self.cursor = self.cursor-1
 
-        elseif key == 'delete' then
+            self:onChange(self.text)
+        elseif key == 'delete' and self.cursor ~= utf8.len(self.text)+1 then
             local a,b = split(self.text, self.cursor)
             local _,b = split(b, 2)
 
             self.text = table.concat { a, b }
 
+            self:onChange(self.text)
         elseif key == 'left' then
-            self.cursor = math.max(0, self.cursor-1)
-
+            self.cursor = math.max(1, self.cursor-1)
         elseif key == 'right' then
             self.cursor = math.min(utf8.len(self.text)+1, self.cursor+1)
         end