private static T FindBlock <T>(BlockCollection blocks, TextPointer position) where T : Block
{
T result = null;
Block block = blocks.FirstOrDefault(x => x.ContentStart.CompareTo(position) == -1 && x.ContentEnd.CompareTo(position) == 1);
if (block is T)
{
result = (T)block;
}
else if (block is Table)
{
Table table = (Table)block;
foreach (TableRowGroup rowGroup in table.RowGroups)
{
foreach (TableRow row in rowGroup.Rows)
{
foreach (TableCell cell in row.Cells)
{
result = FindBlock <T>(cell.Blocks, position);
if (result != null)
{
return(result);
}
}
}
}
}
return(result);
}