From 907ddf8b24ea65700d9befb2dcd13322dfc8aeec Mon Sep 17 00:00:00 2001
From: pierow <pierow8@gmail.com>
Date: Mon, 4 Jan 2021 13:40:19 -0500
Subject: [PATCH] Fix for backspace being held preventing additional text
 input. Credit to Bacsu.

---
 .../cl_dll/vgui_TeamFortressViewport.cpp      |  2 +-
 main/source/ui/ChatPanel.cpp                  | 20 ++++++++++++-------
 main/source/ui/ChatPanel.h                    |  2 +-
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/main/source/cl_dll/vgui_TeamFortressViewport.cpp b/main/source/cl_dll/vgui_TeamFortressViewport.cpp
index 4fb5e6d7..2e673416 100644
--- a/main/source/cl_dll/vgui_TeamFortressViewport.cpp
+++ b/main/source/cl_dll/vgui_TeamFortressViewport.cpp
@@ -2388,7 +2388,7 @@ int	TeamFortressViewport::KeyInput( int down, int keynum, const char *pszCurrent
     if (m_chatPanel->isVisible())
     {
         // Don't let the game handle the input while the user is typing in the chat window.
-		m_chatPanel->KeyEvent();
+		m_chatPanel->KeyEvent(down);
         return 0;
     }
     
diff --git a/main/source/ui/ChatPanel.cpp b/main/source/ui/ChatPanel.cpp
index 69c98513..208f153d 100644
--- a/main/source/ui/ChatPanel.cpp
+++ b/main/source/ui/ChatPanel.cpp
@@ -208,10 +208,11 @@ std::string ChatPanel::UTF8toASCII(unsigned char* multibyte)
 	return ASCIIValue;
 }
 
-void ChatPanel::KeyEvent()
+void ChatPanel::KeyEvent(int iKeydown)
 {
-	const Uint8 *state = SDL_GetKeyboardState(NULL);	
-
+	const Uint8 *state = SDL_GetKeyboardState(NULL);
+	bool bTextinput;
+	bTextinput = false;
 	while (SDL_PollEvent(&event)) {
 
 		if (event.type == SDL_TEXTINPUT)
@@ -220,20 +221,25 @@ void ChatPanel::KeyEvent()
 			buffer = (unsigned char*)event.text.text;
 
 			mText += UTF8toASCII(buffer);
+			bTextinput = true;
 		}
 
 	}
 
 	if (state[SDL_SCANCODE_ESCAPE])
 	{
-		CancelChat();		
+		CancelChat();
+
 	}
 	if (state[SDL_SCANCODE_BACKSPACE])
 	{
-		if (mText.length() > 0)
+		if (iKeydown && !bTextinput)
 		{
-			mText.erase(mText.length() - 1, mText.length());
-		}		
+			if (mText.length() > 0)
+			{
+				mText.erase(mText.length() - 1, mText.length());
+			}
+		}
 	}
 	if (state[SDL_SCANCODE_RETURN])
 	{
diff --git a/main/source/ui/ChatPanel.h b/main/source/ui/ChatPanel.h
index 54caa9b8..23e4d014 100644
--- a/main/source/ui/ChatPanel.h
+++ b/main/source/ui/ChatPanel.h
@@ -20,7 +20,7 @@ public:
 
     void CancelChat();
     void SetChatMode(std::string sChatMode);
-	void KeyEvent();
+	void KeyEvent(int iKeydown);
     void KeyDown(int virtualKey, int scanCode);
 
     // Checks if a key was pushed since the chat window was opened.