Method getRowId

packages/blockly/core/inputs/input.ts:372–402

* Returns an ID for the logical "row" this input is part of. A "row" is * bounded by a previous/next connection, a statement input, or a block stack * boundary; all blocks/inputs nested inside of one of those are conceptually * part of its same row. * * @internal

()

   * @internal
   */
  getRowId(): string {
    const inputs = this.getSourceBlock().inputList;

    // The first visible input shares the block's row id; this also covers
    // the collapsed-input placeholder, since every other input is hidden.
    if (this === inputs.find((i) => i.isVisible())) {
      return (this.getSourceBlock() as BlockSvg).getRowId();
    }

    // Fallback when inputs[0] itself is hidden.
    if (this === inputs[0]) {
      return (this.getSourceBlock() as BlockSvg).getRowId();
    }

    const inputIndex = inputs.indexOf(this);
    const precedingStatementInput =
      inputs[inputIndex - 1].connection?.type === ConnectionType.NEXT_STATEMENT;

    // Each subsequent statement input or value input following a statement
    // input is on its own row and has its own row ID.
    if (
      this.connection?.type === ConnectionType.NEXT_STATEMENT ||
      precedingStatementInput
    ) {
      return `${this.getSourceBlock().id}-input${inputIndex}`;
    }

    // Value inputs have the same row ID as their preceding input, since
    // they're all on one row.
    return inputs[inputIndex - 1].getRowId();
  }

  /**
   * Returns a derived accessibility label for this input: field row text plus