handleTap method

@override void handleTap(RowColumnIndex rowColumnIndex)

Processes the selection operation when tap a cell.

Implementation

@override
void handleTap(RowColumnIndex rowColumnIndex) {
  final DataGridConfiguration dataGridConfiguration =
      _dataGridStateDetails!();
  _pressedRowColumnIndex = rowColumnIndex;
  if (dataGridConfiguration.selectionMode == SelectionMode.none) {
    return;
  }
  final int recordIndex = grid_helper.resolveToRecordIndex(
    dataGridConfiguration,
    rowColumnIndex.rowIndex,
  );

  final RowColumnIndex previousRowColumnIndex = RowColumnIndex(
    dataGridConfiguration.currentCell.rowIndex,
    dataGridConfiguration.currentCell.columnIndex,
  );
  if (!dataGridConfiguration.currentCell._handlePointerOperation(
    dataGridConfiguration,
    rowColumnIndex,
  )) {
    return;
  }
  final bool isShiftPressed = dataGridConfiguration.isShiftKeyPressed;
  // Issue:
  // Header checkbox selection causes shift selection to fail.
  //
  // Fix:
  // After header checkbox selection, the pressed rowIndex is set to -1.
  // To fix this, when performing shift or normal selection, if rowIndex is -1,
  // set it to the currently tapped rowIndex.
  if (_pressedRowIndex < 0 || !isShiftPressed) {
    _pressedRowIndex = recordIndex;
  }

  // Issue:
  // FLUT-920028-The HeaderCheckboxState changes when tapping on the header checkbox and normal rows, while setting onSelectionChanging to false and onCurrentCellActivating to true, with the selection mode set to multiple.
  // We resolved the issue by verifying that onSelectionChanging is set to false
  if (!isShiftPressed && _raiseSelectionChanging()) {
    _shiftSelectedRows.clear();
    _processSelection(
      dataGridConfiguration,
      rowColumnIndex,
      previousRowColumnIndex,
    );
  } else if (dataGridConfiguration.selectionMode == SelectionMode.multiple) {
    _processShiftKeySelection(rowColumnIndex, recordIndex);
  }
}