src/vs/editor/browser/widget/codeEditorWidget.ts/CodeEditorWidget/getTargetAtClientPoint
class CodeEditorWidget:	public getTargetAtClientPoint(clientX: number, clientY: number): editorBrowser.IMouseTarget | null {
		if (!this._modelData || !this._modelData.hasRealView) {
			return null;
		}
		return this._modelData.view.getTargetAtClientPoint(clientX, clientY);
	}