[client] Add mouse manager class

Nibriboard/ClientFiles/Utilities/Mouse.js

@@ -0,0 +1,126 @@
+"use strict";
+
+/*****************************************************************************
+ ******************************** Mouse class ********************************
+ ********************************************************************* v0.1 **
+ * A simple mouse class, records and stores mouse information later use
+ * outside an event listener. Depends on my earlier Vector class.
+ * 
+ * Author: Starbeamrainbowlabs
+ * Twitter: @SBRLabs
+ * Email: feedback at starbeamrainbowlabs dot com
+ *
+ * From https://gist.github.com/sbrl/06db619f2a1f75305fbd54f66402459b
+ *****************************************************************************
+ * Originally written for the Nibriboard client.
+ *****************************************************************************
+ * Changelog
+ *****************************************************************************
+ * v0.1 - 28th March 2017
+ 	 * Initial release.
+ */
+
+import Vector from './Vector.js';
+
+/**
+ * A reference for the different mouse button types.
+ * @type {Object}
+ */
+var MouseButtons = {
+	/**
+	 * The left mouse button.
+	 * @type {Number}
+	 */
+	Left: 0,
+	/**
+	 * The right mouse button.
+	 * @type {Number}
+	 */
+	Right: 2,
+	/**
+	 * The middle mouse button.
+	 * @type {Number}
+	 */
+	Middle: 1
+};
+
+class Mouse
+{
+	constructor()
+	{
+		/**
+		 * Whether the left mouse button is down or not.
+		 * @type {boolean}
+		 */
+		this.leftDown = false;
+		/**
+		 * Whether the right mouse button is down or not.
+		 * @type {boolean}
+		 */
+		this.rightDown = false;
+		/**
+		 * Whether the middle mouse button is down or not.
+		 * @type {boolean}
+		 */
+		this.middleDown = false;
+		/**
+		 * The last known position of the mouse in document-space.
+		 * @type {Vector}
+		 */
+		this.position = new Vector(0, 0);
+		
+		// Register the required event listeners
+		document.addEventListener("mouseup", handleMouseUp.bind(this));
+		document.addEventListener("mousedown", handleMouseDown.bind(this));
+		document.addEventListener("mousemove", handleMouseMove.bind(this));
+	}
+	
+	handleMouseUp(event)
+	{
+		switch(event.button)
+		{
+			case MouseButtons.Left:
+				this.leftDown = false;
+				break;
+			case MouseButtons.Right:
+				this.rightDown = false;
+				break;
+			case MouseButtons.Middle:
+				this.middleDown = false;
+				break;
+			default:
+				console.warn(`Unknown mouse up button type ${even.button}`);
+				break;
+		}
+	}
+	
+	handleMouseDown(event)
+	{
+		switch(event.button)
+		{
+			case MouseButtons.Left:
+			this.leftDown = true;
+			break;
+			case MouseButtons.Right:
+			this.rightDown = true;
+			break;
+			case MouseButtons.Middle:
+			this.middleDown = true;
+			break;
+			default:
+			console.warn(`Unknown mouse down button type ${even.button}`);
+			break;
+		}
+	}
+	
+	handleMouseMove(event)
+	{
+		this.position.x = event.clientX;
+		this.position.y = event.clientY;
+		this.pressur = typeof event.pressure === "number" ? event.pressure : event.mozPressure;
+	}
+}
+
+
+export { Mouse, MouseButtons };
+export default Mouse;