Merge pull request #1187 from visualjerk/task/1186-support-touch-event

#1186@minor: Add support for TouchEvent.

Author: capricorn86

packages/happy-dom/src/event/ITouchInit.ts

@@ -0,0 +1,16 @@
+import IEventTarget from './IEventTarget.js';
+
+export default interface ITouchInit {
+	identifier: number;
+	target: IEventTarget;
+	clientX?: number;
+	clientY?: number;
+	screenX?: number;
+	screenY?: number;
+	pageX?: number;
+	pageY?: number;
+	radiusX?: number;
+	radiusY?: number;
+	rotationAngle?: number;
+	force?: number;
+}

packages/happy-dom/src/event/Touch.ts

@@ -0,0 +1,40 @@
+import IEventTarget from './IEventTarget.js';
+import ITouchInit from './ITouchInit.js';
+
+/**
+ *
+ */
+export default class Touch {
+	public readonly identifier: number;
+	public readonly target: IEventTarget;
+	public readonly clientX: number;
+	public readonly clientY: number;
+	public readonly screenX: number;
+	public readonly screenY: number;
+	public readonly pageX: number;
+	public readonly pageY: number;
+	public readonly radiusX: number;
+	public readonly radiusY: number;
+	public readonly rotationAngle: number;
+	public readonly force: number;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param [touchInit] Touch init.
+	 */
+	constructor(touchInit: ITouchInit) {
+		this.identifier = touchInit.identifier;
+		this.target = touchInit.target;
+		this.clientX = touchInit.clientX ?? 0;
+		this.clientY = touchInit.clientY ?? 0;
+		this.screenX = touchInit.screenX ?? 0;
+		this.screenY = touchInit.screenY ?? 0;
+		this.pageX = touchInit.pageX ?? 0;
+		this.pageY = touchInit.pageY ?? 0;
+		this.radiusX = touchInit.radiusX ?? 0;
+		this.radiusY = touchInit.radiusY ?? 0;
+		this.rotationAngle = touchInit.rotationAngle ?? 0;
+		this.force = touchInit.force ?? 0;
+	}
+}

packages/happy-dom/src/event/events/ITouchEventInit.ts

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+import IUIEventInit from '../IUIEventInit.js';
+import Touch from '../Touch.js';
+
+export default interface ITouchEventInit extends IUIEventInit {
+	touches?: Touch[] | null;
+	targetTouches?: Touch[] | null;
+	changedTouches?: Touch[] | null;
+	ctrlKey?: boolean | null;
+	shiftKey?: boolean | null;
+	altKey?: boolean | null;
+	metaKey?: boolean | null;
+}

packages/happy-dom/src/event/events/TouchEvent.ts

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+import ITouchEventInit from './ITouchEventInit.js';
+import UIEvent from '../UIEvent.js';
+import Touch from '../Touch.js';
+
+/**
+ *
+ */
+export default class TouchEvent extends UIEvent {
+	public readonly altKey: boolean;
+	public readonly changedTouches: Touch[];
+	public readonly ctrlKey: boolean;
+	public readonly metaKey: boolean;
+	public readonly shiftKey: boolean;
+	public readonly targetTouches: Touch[];
+	public readonly touches: Touch[];
+
+	/**
+	 * Constructor.
+	 *
+	 * @param type Event type.
+	 * @param [eventInit] Event init.
+	 */
+	constructor(type: string, eventInit: ITouchEventInit | null = null) {
+		super(type, eventInit);
+
+		this.altKey = eventInit?.altKey ?? false;
+		this.changedTouches = eventInit?.changedTouches ?? [];
+		this.ctrlKey = eventInit?.ctrlKey ?? false;
+		this.metaKey = eventInit?.metaKey ?? false;
+		this.shiftKey = eventInit?.shiftKey ?? false;
+		this.targetTouches = eventInit?.targetTouches ?? [];
+		this.touches = eventInit?.touches ?? [];
+	}
+}