Method openSubgraph

src/LGraphCanvas.ts:1636–1649

(subgraph: Subgraph)

  }

  openSubgraph(subgraph: Subgraph): void {
    const { graph } = this
    if (!graph) throw new NullGraphError()

    const options = { bubbles: true, detail: { subgraph, closingGraph: graph }, cancelable: true }
    const mayContinue = this.canvas.dispatchEvent(new CustomEvent("subgraph-opening", options))
    if (!mayContinue) return

    this.clear()
    this.subgraph = subgraph
    this.setGraph(subgraph)

    this.canvas.dispatchEvent(new CustomEvent("subgraph-opened", options))
  }

  /**
   * @returns the visually active graph (in case there are more in the stack)