FMX, TGrid, OnCellClick - events

Question

On my fmx-form I have TGrid with column of type TCheckColumn. To capture click events on cells of grid I connect the OnCellClick handler to it.
My Question is: how to reliably trigger the OnCellClick event when clicking the left mouse button (LMB) for an arbitrary line, if:
LMB clicks occur on the same cell in the TCheckColumn;
LMB clicks are not accompanied by mouse cursor displacement.
For a better explanation of the essence of the issue, I will give a picture (see below). LMB is pressed on it in the same cell without cursor offsets. Events arising in this situation are logged in the CodeSite window (on the right). As you can see from the picture: the cell in the TCheckColumn column changes its state (the checkmark appears or disappears), but the OnCellClick event occurs only 1 time.
The picture itself
TGrid with OnCellClick event handler:
unit uMain;
interface
uses
System.SysUtils,
System.Types,
System.UITypes,
System.Classes,
System.Variants,
System.Rtti,
//
FMX.Types,
FMX.Controls,
FMX.Forms,
FMX.Graphics,
FMX.Dialogs,
FMX.Grid.Style,
FMX.Grid,
FMX.Controls.Presentation,
FMX.ScrollBox,
FMX.StdCtrls,
FMX.ImgList;
//
type
//for grid row
TRow = record
ID:integer;
Checked:boolean;
end;
//Test form
TForm1 = class(TForm)
grd: TGrid;
CheckColumn2: TCheckColumn;
Label2: TLabel;
IntegerColumn1: TIntegerColumn;
procedure FormCreate(Sender: TObject);
procedure grdGetValue(Sender: TObject; const ACol, ARow: Integer; var Value: TValue);
procedure grdSetValue(Sender: TObject; const ACol, ARow: Integer; const Value: TValue);
procedure grdCellClick(const Column: TColumn; const Row: Integer);
private
FRowsA: array of TRow;
FSelectedRow: integer;
//
procedure PopulateGrid;
//
end;
//for cols of grid
TMyCols = (mcID, mcChecked);
var
Form1: TForm1;
implementation
{$R *.fmx}
//FormCreate
procedure TForm1.FormCreate(Sender: TObject);
begin
PopulateGrid;
end;
{$REGION 'TGrid'}
//PopulateGrid
procedure TForm1.PopulateGrid;
const
rows = 10;//rows count
begin
Grd.RowCount := rows ;
SetLength(FRowsA, rows);
for var r := 0 to rows-1 do
begin
//
FRowsA[r].ID := r; //id
FRowsA[r].Checked := false ; //check
end;
end;
//grdCellClick
procedure TForm1.grdCellClick(const Column: TColumn; const Row: Integer);
var
selRow, cnt: integer;
begin
var ci := Column.Index ;
FSelectedRow := Row;
cnt := grd.RowCount ;
//checked col
if ci = Ord(TMyCols.mcChecked) then
begin
//
grd.RowCount := 0;
grd.RowCount := cnt;
grd.SelectRow(FSelectedRow);
//
FRowsA[Row].Checked := not FRowsA[Row].Checked;
//
Log.d( Format('CellClick raised: row=%d; col=%d', [Row, ci]) );
end;
end;
//grdSetValue
procedure TForm1.grdSetValue(Sender: TObject; const ACol, ARow: Integer; const Value: TValue);
var
oldVal, newVal: boolean;
begin
var g := Sender as TGrid;
if not Assigned(g) then Exit;
if (ARow < 0) or (ARow >= g.RowCount) then Exit;
//
//col num
case ACol of
//id col
Ord(TMyCols.mcID):
begin
FRowsA[ARow].Checked := Value.AsBoolean;//id
end;
//checked col
Ord(TMyCols.mcChecked):
begin
oldVal := FRowsA[ARow].Checked;
Value.TryAsType<boolean>(newVal);
FRowsA[ARow].Checked := newVal;//checked
Log.d( Format('OnSetValue raised: row=%d; col=%d; oldValue=%s; newValue=%s', [ARow, ACol, oldVal.ToString(), newVal.ToString()]) );
end;
//
end;
//
end;
//grdGetValue
procedure TForm1.grdGetValue(Sender: TObject; const ACol, ARow: Integer; var Value: TValue);
var
val: boolean;
begin
var g := Sender as TGrid;
if not Assigned(g) then Exit;
if (ARow < 0) or (ARow >= g.RowCount) then Exit;
case ACol of
//id
Ord(TMyCols.mcID) :
begin
Value := FRowsA[ARow].ID;
end;
//checked
Ord(TMyCols.mcChecked):
begin
Value := FRowsA[ARow].Checked;
end;
end;
Log.d( Format('OnGetValue raised: row=%d; col=%d', [ARow, ACol]) );
//
end;
{$ENDREGION}
//
end.