// Incriment cell focus to next available cell or defocus
private void LetterCell_TextChanged(CustomEntry entry, TextChangedEventArgs e)
{
// Check if the character is not empty
if (!IsCellEmpty(e))
{
return;
}
// Check if word is complete and correct - if so, defocus and dehighlight
if (_wordChecker.IsWordCorrect())
{
// Update Score
UpdateScoring();
if (_focusedLetterCell != null)
{
DeFocusCell();
_isPlacedWordSelected = false;
}
}
else
{
// Exit if _focusedLetterCell is null
if (!IsFocusedLetterCellNull())
{
return;
}
// Exit if placed word is not selected
if (!IsFocusedLetterCellNull())
{
return;
}
// Change Entry focus to next cell in word
// Return next cell position
var nextCellPos = _currentPlacedWord.IncrimentCellPos(_focusedLetterCell.Pos);
if (nextCellPos != null)
{
// Clear character when selected
var letterCell = CrosswordViewModel.Instance().DisplayBoard[nextCellPos.Item2][nextCellPos.Item1];
if (letterCell.LetterIn != Char.MinValue)
{
letterCell.LetterIn = Char.MinValue;
}
_focusedLetterCell = letterCell;
}
else
{
DeFocusCell();
_isPlacedWordSelected = false;
}
if (nextCellPos != null)
{
CrosswordViewModel.Instance().DisplayBoard[nextCellPos.Item2][nextCellPos.Item1].CellEntry.Focus();
}
}
}