public addWidget(widget: IOverlayWidget): void {
		this._widgets[widget.getId()] = {
			widget: widget,
			preference: null
		};

		// This is sync because a widget wants to be in the dom
		var domNode = widget.getDomNode();
		domNode.style.position = 'absolute';
		domNode.setAttribute('widgetId', widget.getId());
		this.domNode.appendChild(domNode);
	}

	public addWidget(widget: IOverlayWidget): void {
		const domNode = createFastDomNode(widget.getDomNode());

		this._widgets[widget.getId()] = {
			widget: widget,
			preference: null,
			domNode: domNode
		};

		// This is sync because a widget wants to be in the dom
		domNode.setPosition('absolute');
		domNode.setAttribute('widgetId', widget.getId());
		this._domNode.domNode.appendChild(domNode.domNode);

		this.setShouldRender();
	}

	public removeWidget(widget: IOverlayWidget): void {
		var widgetId = widget.getId();
		if (this._widgets.hasOwnProperty(widgetId)) {
			var widgetData = this._widgets[widgetId];
			var domNode = widgetData.widget.getDomNode();
			delete this._widgets[widgetId];

			domNode.parentNode.removeChild(domNode);
		}
	}

	public setWidgetPosition(widget: IOverlayWidget, preference:OverlayWidgetPositionPreference): void {
		var widgetData = this._widgets[widget.getId()];
		widgetData.preference = preference;

		this._requestModificationFrame(() => {
			if(this._widgets.hasOwnProperty(widget.getId())) {
				this._renderWidget(widgetData);
			}
		});
	}

	public setWidgetPosition(widget: IOverlayWidget, preference: OverlayWidgetPositionPreference): boolean {
		let widgetData = this._widgets[widget.getId()];
		if (widgetData.preference === preference) {
			return false;
		}

		widgetData.preference = preference;
		this.setShouldRender();

		return true;
	}

	public removeWidget(widget: IOverlayWidget): void {
		let widgetId = widget.getId();
		if (this._widgets.hasOwnProperty(widgetId)) {
			const widgetData = this._widgets[widgetId];
			const domNode = widgetData.domNode.domNode;
			delete this._widgets[widgetId];

			domNode.parentNode.removeChild(domNode);
			this.setShouldRender();
		}
	}

	public setWidgetPosition(widget: IOverlayWidget, preference:OverlayWidgetPositionPreference): boolean {
		var widgetData = this._widgets[widget.getId()];
		if (widgetData.preference === preference) {
			return false;
		}

		widgetData.preference = preference;
		this._requestModificationFrame(() => {
			if(this._widgets.hasOwnProperty(widget.getId())) {
				this._renderWidget(widgetData);
			}
		});
		return true;
	}

		this._requestModificationFrame(() => {
			if(this._widgets.hasOwnProperty(widget.getId())) {
				this._renderWidget(widgetData);
			}
		});