internal bool NoveltyFunction(IPredictionSuggestion suggestion)
{
var fiddleFactor = AppSettings.Instance.Prediction.PredictionNovelty == PredictionNovelty.FromFirstLetter ? 0 : 1;
var matchIndex = 0;
var matchLim = Math.Min(suggestion.ReplacementLength + fiddleFactor - 1, offeredList.Count);
while (matchIndex < matchLim && offeredList[matchIndex] != suggestion.Text)
{
matchIndex++;
}
return(matchIndex == matchLim);
}
void InsertSuggestion(IPredictionSuggestion suggestion, string insert)
{
if ((_isAutoSpaceNeeded) && (suggestion.CompleteWord))
{
_isAutoSpaceNeeded = false;
insert = " " + insert;
}
_isAutoSpaceAdded = false;
Debug.Assert(!_isAutoSpaceNeeded);
Debug.Assert(!_isAutoSpaceAdded);
if (!suggestion.CompleteWord)
{
insert = insert.Substring(0, insert.Length - 1);
}
switch (Settings.Prediction.PredictionSpacingBehavior)
{
case PredictionSpacingBehavior.Always:
insert += " ";
break;
case PredictionSpacingBehavior.Never:
break;
case PredictionSpacingBehavior.AddAndRemoveIfUnwanted:
insert += " ";
_isAutoSpaceAdded = true;
break;
case PredictionSpacingBehavior.AddIfNeeded:
default:
Debug.Assert(Settings.Prediction.PredictionSpacingBehavior == PredictionSpacingBehavior.AddIfNeeded);
_isAutoSpaceNeeded = suggestion.CompleteWord;
break;
}
var originalText = TextSlice.Text;
var replacementText = originalText.Substring(0, suggestion.ReplacementStart) +
insert +
originalText.Substring(suggestion.ReplacementStart + suggestion.ReplacementLength);
var slice = new TextSlice(replacementText, suggestion.ReplacementStart + insert.Length);
if (slice != TextSlice)
{
// Normally selecting a prediction will change the text.
_editor.TextSlice = slice;
TextSlice = slice;
}
else
{
// Sometimes the prediction is just what we typed, but we still want to fire off the prediction engine
// which usually runs as a side-effect of the text changing. (This is probably the same as detecting that
// _isAutoSpaceNeeded changed as a side-effect of this method.)
SetTextHint(slice);
}
// Release the Shift key if it had been pressed.
ShiftToggleState.IsChecked = false;
_ambiguousKeys.Clear();
if (!suggestion.CompleteWord)
{
var entry = new List <string>();
entry.Add(insert);
_ambiguousKeys.Add(entry);
}
RaiseNarrationEvent(insert, NarrationEventType.AcceptSuggestion, insert);
}
