/// <summary>
/// if downkey is pressed and intellisence is being displayed: enters intelliselect
/// otherwise executes if Return is pressed.
/// </summary>
public static void Update_Typing()
{
if (IsKeyDown(KeyCode.DownArrow) && IntelliSenceHelp.Any())
{
Enter_IntelliSelect();
}
else if (IsKeyDown(KeyCode.Tab) && IntelliSenceHelp.Count > 0)
{
SelectedHelp = 0;
UseIntelliSelection();
return;
}
else if (IsKeyDown(KeyCode.Return) || IsKeyDown(KeyCode.KeypadEnter))
{
// Replace code with selected history element.
Exit_Typing();
Execute();
return;
}
else if (IsKeyDown(KeyCode.Escape))
{
DisplayHelp = false;
}
var parseResult = Parser.ParseAssignment(Code);
if (IntelliSenceLastCode != parseResult.ExpressionString)
{
DisplayHelp = true;
IntelliSenceLastCode = parseResult.ExpressionString;
IntelliSenceHelp = IntellisenseProvider.Intellisense(Code).ToList();
SelectedHelp = -1;
Repaint();
}
}
/// <summary>
/// Signals the end of intelliselection.
/// Adds the chosen intelliSence item to the current code string and replaces it.
/// </summary>
public static void UseIntelliSelection()
{
ReplacementCode = ReplacementString();
if (ReplacementCode != Code)
{
IntelliSenceHelp.Clear();
ShouldReplaceCode = true;
SelectedHelp = -1;
}
}
public static string ReplacementString()
{
if (SelectedHelp < 0 || SelectedHelp >= IntelliSenceHelp.Count(i => !i.IsMethodOverload))
{
return(Code);
}
var completion = IntelliSenceHelp[SelectedHelp];
if (IntelliSenceHelp.Any(i => i.IsMethodOverload))
{
completion = IntelliSenceHelp.Where(i => !i.IsMethodOverload).ToArray()[SelectedHelp];
}
return(Code.Substring(0, completion.Start) + completion.ReplaceString + Code.Substring(completion.End + 1));
}