/*
* Command function for CharButtonCommand
* Handles the interaction for each key press and for when the application is in predictive mode
* @param Object parameter passed in by the UI, the Key character for the button in this case
*/
private void OnCharacterPress(object param)
{
var paramString = param as string;
char key = paramString[0];
switch (key)
{
case '*':
OnBackspace();
if (PredictiveModeChecked)
{
GetCurrentPredictions();
}
else
{
_currentViewChar = null;
}
break;
case '1':
_currentViewChar = null;
break;
case '#':
if (PredictiveModeChecked && SelectedPrediction != null)
{
SetSelectedWord();
}
OnCharacter(key);
break;
case '0':
if (PredictiveModeChecked)
{
CyclePredictionSelections();
}
else
{
_currentViewChar = null;
}
break;
default:
OnCharacter(key);
if (PredictiveModeChecked)
{
GetCurrentPredictions();
}
break;
}
}
/*
* Sequence of checks and functions for different stages of pressing a T9 Button
*/
private void OnCharacter(char key)
{
// If the first character inputed or the current ViewChar has been nullified
if (_currentViewChar == null)
{
_currentViewChar = new ViewChar(key, T9CharacterModel.T9CharDictionary[key].Length);
AppendCurrChar();
//Timer stuff
_charStopWatch.Reset();
_charStopWatch.Start();
return;
}
// If pressing same character
if (key == _currentViewChar.charKey)
{
_currentViewChar.currCharIndex++;
_charStopWatch.Stop();
if (_charStopWatch.ElapsedMilliseconds < _setCharTimeInterval)
{
if (_currentViewChar.currCharIndex >= _currentViewChar.dictSize)
{
_currentViewChar = new ViewChar(key, T9CharacterModel.T9CharDictionary[key].Length);
AppendCurrChar();
_charStopWatch.Reset();
_charStopWatch.Start();
}
else
{
SwapLastWithCurrChar();
_charStopWatch.Reset();
_charStopWatch.Start();
}
}
else
{
_currentViewChar = new ViewChar(key, T9CharacterModel.T9CharDictionary[key].Length);
AppendCurrChar();
_charStopWatch.Reset();
_charStopWatch.Start();
}
return;
}
// if new char pressed compared to last char
_currentViewChar = new ViewChar(key, T9CharacterModel.T9CharDictionary[key].Length);
AppendCurrChar();
_charStopWatch.Reset();
_charStopWatch.Start();
}