Method showConnectionMenu

src/LGraphCanvas.ts:6022–6188

(optPass: Partial<ICreateNodeOptions & { e: MouseEvent }>)

  }

  showConnectionMenu(optPass: Partial<ICreateNodeOptions & { e: MouseEvent }>): ContextMenu<string> | undefined {
    const opts = Object.assign<ICreateNodeOptions & HasShowSearchCallback, ICreateNodeOptions>({
      nodeFrom: null,
      slotFrom: null,
      nodeTo: null,
      slotTo: null,
      e: undefined,
      allow_searchbox: this.allow_searchbox,
      showSearchBox: this.showSearchBox,
    }, optPass || {})
    const dirty = () => this.#dirty()
    const that = this
    const { graph } = this
    const { afterRerouteId } = opts

    const isFrom = opts.nodeFrom && opts.slotFrom
    const isTo = !isFrom && opts.nodeTo && opts.slotTo

    if (!isFrom && !isTo) {
      console.warn("No data passed to showConnectionMenu")
      return
    }

    const nodeX = isFrom ? opts.nodeFrom : opts.nodeTo
    if (!nodeX) throw new TypeError("nodeX was null when creating default node for slot.")
    let slotX = isFrom ? opts.slotFrom : opts.slotTo

    let iSlotConn: number
    if (nodeX instanceof SubgraphIONodeBase) {
      if (typeof slotX !== "object" || !slotX) {
        console.warn("Cant get slot information", slotX)
        return
      }
      const { name } = slotX
      iSlotConn = nodeX.slots.findIndex(s => s.name === name)
      // If it's not found in the main slots, it might be the empty slot from a Subgraph node.
      // In that case, the original `slotX` object is the correct one, so don't overwrite it.
      if (iSlotConn !== -1) {
        slotX = nodeX.slots[iSlotConn]
      }
      if (!slotX) {
        console.warn("Cant get slot information", slotX)
        return
      }
    } else {
      switch (typeof slotX) {
      case "string":
        iSlotConn = isFrom
          ? nodeX.findOutputSlot(slotX, false)
          : nodeX.findInputSlot(slotX, false)
        slotX = isFrom ? nodeX.outputs[slotX] : nodeX.inputs[slotX]
        break
      case "object":
        if (slotX === null) {
          console.warn("Cant get slot information", slotX)
          return
        }