From 5c88156b467eb2ab229b074f9a106766dde9d93c Mon Sep 17 00:00:00 2001
From: Krisjanis Rijnieks <krisjanis.rijnieks@gmail.com>
Date: Thu, 11 Feb 2016 15:41:39 +0100
Subject: [PATCH] Add `TerminalListener` from github.com/jvcleave

---
 src/Utils/TerminalListener.cpp | 68 ++++++++++++++++++++++++++++++++++
 src/Utils/TerminalListener.h   | 41 ++++++++++++++++++++
 2 files changed, 109 insertions(+)
 create mode 100644 src/Utils/TerminalListener.cpp
 create mode 100644 src/Utils/TerminalListener.h

diff --git a/src/Utils/TerminalListener.cpp b/src/Utils/TerminalListener.cpp
new file mode 100644
index 0000000..df0af5c
--- /dev/null
+++ b/src/Utils/TerminalListener.cpp
@@ -0,0 +1,68 @@
+#include "TerminalListener.h"
+
+KeyListenerEventData::KeyListenerEventData(char character, void * listener){
+	this->character = character;
+	this->listener = listener;
+}
+
+TerminalListener::TerminalListener(){
+	sleepTime = 100;
+	listener = 0;
+}
+
+TerminalListener::~TerminalListener(){
+	close();
+}
+
+void TerminalListener::setup(KeyListener * listener_, int sleepTime_ = 0){
+	listener = listener_;
+
+	if(sleepTime_ > 0){
+		sleepTime = sleepTime_;
+	}
+
+	struct termios new_termios;
+
+	tcgetattr(STDIN_FILENO, &orig_termios);
+
+	new_termios = orig_termios;
+	new_termios.c_lflag &= ~(ICANON | ECHO | ECHOCTL | ECHONL);
+	new_termios.c_cflag |= HUPCL;
+	new_termios.c_cc[VMIN] = 0;
+
+	tcsetattr(STDIN_FILENO, TCSANOW, &new_termios);
+	thread.start(*this);
+}
+
+void TerminalListener::run(){
+	while (thread.isRunning()){
+		if (listener != NULL){
+			int ch[8];
+			int chnum = 0;
+
+			while ((ch[chnum] = getchar()) != EOF){
+				chnum++;
+			}
+
+			if (chnum > 1){
+				ch[0] = ch[chnum - 1];
+			}else{
+				(ch[chnum - 2] << 8);
+			}
+
+			if (chnum > 0){
+				//ofLog(OF_LOG_VERBOSE, "TerminalListener: character %c", ch[0]);
+				KeyListenerEventData eventData(ch[0], (void *)this);
+				listener->onCharacterReceived(eventData);
+			}
+
+			thread.sleep(sleepTime);
+		}
+	}
+}
+
+void TerminalListener::close(){
+	tcsetattr(STDIN_FILENO, TCSANOW, &orig_termios);
+	thread.tryJoin(50);
+	listener = NULL;
+}
diff --git a/src/Utils/TerminalListener.h b/src/Utils/TerminalListener.h
new file mode 100644
index 0000000..da128dd
--- /dev/null
+++ b/src/Utils/TerminalListener.h
@@ -0,0 +1,41 @@
+/* 
+ * TerminalListener
+ * Helper for capturing keyboard input when via SSH
+ * Author: Jason Van Cleave / https://github.com/jvcleave
+ * Adaptor: Krisjanis Rijnieks / https://github.com/kr15h
+ */
+
+#pragma once
+
+#include "ofMain.h"
+#include <fcntl.h>
+
+class KeyListenerEventData {
+	public:
+		KeyListenerEventData(char character, void * listener);
+		void * listener;
+		char character;
+};
+
+class KeyListener {
+	public:
+		virtual void onCharacterReceived(KeyListenerEventData & e) = 0;
+};
+
+
+class TerminalListener : public Poco::Runnable {
+	private:
+		struct termios orig_termios;
+	
+	public:
+		TerminalListener();
+		~TerminalListener();
+	
+		void setup(KeyListener* listener_, int sleepTime_);
+		void run();
+		void close();
+	
+		KeyListener* listener;
+		Poco::Thread thread;
+		int sleepTime;
+};
\ No newline at end of file