From 23eb42013be63c90e1ea4a0a1e959603b4505592 Mon Sep 17 00:00:00 2001
From: Cranken <cranken1337@gmail.com>
Date: Mon, 24 Jul 2017 13:48:34 +0200
Subject: [PATCH] Implemented issues #71 and #72 (#80)

* Implemented CTRL-Enter not erasing the input

* Added arrow Up and Down cycling through past messages.

* Disabled CTRL+Enter adding messages more than once.
---
 src/widgets/chatwidgetinput.cpp | 28 ++++++++++++++++++++++++++--
 src/widgets/chatwidgetinput.hpp |  3 ++-
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/src/widgets/chatwidgetinput.cpp b/src/widgets/chatwidgetinput.cpp
index acddf1af..6d9b67de 100644
--- a/src/widgets/chatwidgetinput.cpp
+++ b/src/widgets/chatwidgetinput.cpp
@@ -57,10 +57,34 @@ ChatWidgetInput::ChatWidgetInput(ChatWidget *_chatWidget)
             if (c == nullptr) {
                 return;
             }
-
             c->sendMessage(textInput.toPlainText());
+            prevMsg.append(textInput.toPlainText());
             event->accept();
-            textInput.setText(QString());
+            if(!(event->modifiers() == Qt::ControlModifier))
+            {
+                textInput.setText(QString());
+                prevIndex = 0;
+            }
+            else if(textInput.toPlainText() == prevMsg.at(prevMsg.size()-1))
+            {
+                prevMsg.removeLast();
+            }
+            prevIndex = prevMsg.size();
+        }
+        else if(event->key() == Qt::Key_Up){
+            if(prevMsg.size() && prevIndex){
+                prevIndex--;
+                textInput.setText(prevMsg.at(prevIndex));
+            }
+        }
+        else if(event->key() == Qt::Key_Down){
+            if(prevIndex != (prevMsg.size() - 1) && prevIndex != prevMsg.size()){
+                prevIndex++;
+                textInput.setText(prevMsg.at(prevIndex));
+            } else {
+                prevIndex = prevMsg.size();
+                textInput.setText(QString());
+            }
         }
     });
 
diff --git a/src/widgets/chatwidgetinput.hpp b/src/widgets/chatwidgetinput.hpp
index 2d0a3e38..48520308 100644
--- a/src/widgets/chatwidgetinput.hpp
+++ b/src/widgets/chatwidgetinput.hpp
@@ -38,7 +38,8 @@ private:
     ResizingTextEdit textInput;
     QLabel textLengthLabel;
     ChatWidgetHeaderButton emotesLabel;
-
+    QStringList prevMsg;
+    unsigned int prevIndex = 0;
     virtual void refreshTheme() override;
 
 private slots: