From cae43ec998b6e029d61dbb03119b3541b52ea68e Mon Sep 17 00:00:00 2001
From: Serraniel <mail@serraniel.dev>
Date: Wed, 29 Jul 2020 13:49:05 +0200
Subject: [PATCH] #12 Extended helpers for pressed State of shift and ctrl keys

---
 utils/helpers.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/utils/helpers.js b/utils/helpers.js
index cb18055..ed73b4f 100644
--- a/utils/helpers.js
+++ b/utils/helpers.js
@@ -1,3 +1,25 @@
+var isShiftPressed = false;
+var isCtrlPressed = false;
+
 function isHtmlElement(object) {
     return object instanceof HTMLElement;
+}
+
+document.addEventListener('keydown', event => handleKeyDown(event));
+document.addEventListener('keyup', event => handleKeyUp(event));
+
+function handleKeyDown(event) {
+    handleKeyToggle(event, true);
+}
+
+function handleKeyUp(event) {
+    handleKeyToggle(event, false);
+}
+
+function handleKeyToggle(event, isPressed) {
+    if (event.key === 'Shift') {
+        isShiftPressed = isPressed;
+    } else if (event.key === 'Control') {
+        isCtrlPressed = isPressed;
+    }
 }
\ No newline at end of file