From 606e0efdfe7c7f21be2167b352226f3037e33c4b Mon Sep 17 00:00:00 2001
From: ArthurSonzogni <sonzogniarthur@gmail.com>
Date: Sun, 20 Sep 2020 11:47:06 +0200
Subject: [PATCH] Implement Input::on_change.

---
 include/ftxui/component/input.hpp | 4 ++--
 src/ftxui/component/input.cpp     | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/ftxui/component/input.hpp b/include/ftxui/component/input.hpp
index d20cc85..92f3d21 100644
--- a/include/ftxui/component/input.hpp
+++ b/include/ftxui/component/input.hpp
@@ -20,8 +20,8 @@ class Input : public Component {
   std::wstring placeholder;
 
   // State update callback.
-  std::function<void()> on_change = []() {};
-  std::function<void()> on_enter = []() {};
+  std::function<void()> on_change = [] {};
+  std::function<void()> on_enter = [] {};
 
   // Component implementation.
   Element Render() override;
diff --git a/src/ftxui/component/input.cpp b/src/ftxui/component/input.cpp
index db04765..7a76055 100644
--- a/src/ftxui/component/input.cpp
+++ b/src/ftxui/component/input.cpp
@@ -52,6 +52,7 @@ bool Input::OnEvent(Event event) {
       return false;
     content.erase(cursor_position - 1, 1);
     cursor_position--;
+    on_change();
     return true;
   }
 
@@ -60,6 +61,7 @@ bool Input::OnEvent(Event event) {
     if (cursor_position == int(content.size()))
       return false;
     content.erase(cursor_position, 1);
+    on_change();
     return true;
   }
 
@@ -87,6 +89,7 @@ bool Input::OnEvent(Event event) {
   if (event.is_character()) {
     content.insert(cursor_position, 1, event.character());
     cursor_position++;
+    on_change();
     return true;
   }
   return false;