Method connect

packages/blockly/core/connection.ts:240–264

* Connect this connection to another connection. * * @param otherConnection Connection to connect to. * @returns Whether the blocks are now connected or not.

(otherConnection: Connection)

   * @returns Whether the blocks are now connected or not.
   */
  connect(otherConnection: Connection): boolean {
    if (this.targetConnection === otherConnection) {
      // Already connected together.  NOP.
      return true;
    }

    const checker = this.getConnectionChecker();
    if (checker.canConnect(this, otherConnection, false)) {
      const existingGroup = eventUtils.getGroup();
      if (!existingGroup) {
        eventUtils.setGroup(true);
      }
      // Determine which block is superior (higher in the source stack).
      if (this.isSuperior()) {
        // Superior block.
        this.connect_(otherConnection);
      } else {
        // Inferior block.
        otherConnection.connect_(this);
      }
      eventUtils.setGroup(existingGroup);
    }

    return this.isConnected();
  }

  /**
   * Disconnect this connection.