Method focusNode

frontend/layout/lib/layoutModel.ts:1230–1248

* Set the layout to focus on the given node. * @param nodeId The id of the node that is being focused.

(nodeId: string)

     * @param nodeId The id of the node that is being focused.
     */
    focusNode(nodeId: string) {
        if (this.focusedNodeId === nodeId) return;
        let layoutNode = findNode(this.treeState?.rootNode, nodeId);
        if (!layoutNode) {
            const ephemeralNode = this.getter(this.ephemeralNode);
            if (ephemeralNode?.id === nodeId) {
                layoutNode = ephemeralNode;
            } else {
                console.error("unable to focus node, cannot find it in tree", nodeId);
                return;
            }
        }
        const action: LayoutTreeFocusNodeAction = {
            type: LayoutTreeActionType.FocusNode,
            nodeId: nodeId,
        };

        this.treeReducer(action);
    }

    focusFirstNode() {
        const leafOrder = this.getter(this.leafOrder);