#450@trivial: Starts adding support for Range.

packages/happy-dom/src/range/Range.ts

@@ -0,0 +1,59 @@
+import INode from '../nodes/node/INode';
+import IDocument from '../nodes/document/IDocument';
+
+/**
+ * Range.
+ *
+ * Reference:
+ * https://developer.mozilla.org/en-US/docs/Web/API/Range.
+ */
+export default class Range {
+	public static _ownerDocument: IDocument = null;
+	public readonly startOffset: number = 0;
+	public readonly endOffset: number = 0;
+	public readonly startContainer: INode = null;
+	public readonly endContainer: INode = null;
+
+	/**
+	 * Constructor.
+	 */
+	constructor() {
+		this.startContainer = (<typeof Range>this.constructor)._ownerDocument;
+		this.endContainer = (<typeof Range>this.constructor)._ownerDocument;
+	}
+
+	/**
+	 * Returns a boolean value indicating whether the range's start and end points are at the same position.
+	 *
+	 * @returns Collapsed.
+	 */
+	public get collapsed(): boolean {
+		return this.startContainer === this.endContainer && this.startOffset === this.endOffset;
+	}
+
+	/**
+	 * Returns the deepest Node that contains the startContainer and endContainer nodes.
+	 *
+	 * @returns Node.
+	 */
+	public get commonAncestorContainer(): INode {
+		// TODO: Implement
+		return null;
+	}
+
+	/**
+	 * Collapses the current selection.
+	 *
+	 * @param _toStart To start.
+	 */
+	public collapse(_toStart?: boolean): void {
+		// TODO: Implement
+	}
+
+	/**
+	 * Returns string currently being represented by the selection object.
+	 */
+	public toString(): string {
+		return '';
+	}
+}