private bool ApplyDeadKey(KeystrokeEventArgs e)
{
if (lastDeadKeyEvent != null)
{
lastDeadKeyEvent.KeyString = KeyboardLayoutParser.ProcessDeadkeyWithNextKey(lastDeadKeyEvent, e);
if (lastDeadKeyEvent.KeyString == "")
{
lastDeadKeyEvent = null;
return(false);
}
OnKeystrokeEvent(lastDeadKeyEvent);
lastDeadKeyEvent = null;
return(true);
}
return(false);
}
/// <summary>
/// Gets a KeyboardRawKeyEvent, parses it and forwards it via
/// the KeystrokeEvent
/// </summary>
/// <param name="e"></param>
void hook_KeyEvent(KeyboardRawEventArgs raw_e)
{
KeystrokeEventArgs e = new KeystrokeEventArgs(raw_e);
e.IsAlpha = CheckIsAlpha(e);
e.IsNumericFromNumpad = CheckIsNumericFromNumpad(e);
e.IsNumericFromNumbers = CheckIsNumericFromNumbers(e);
e.IsNoUnicodekey = CheckIsNoUnicodekey(e);
e.IsFunctionKey = CheckIsFunctionKey(e);
e.ModifierToggledEvent = CheckVkCodeIsModifier(e);
Log.e("KP", " alpha:" + e.IsAlpha.ToString());
if (e.Method == KeyUpDown.Down)
{
ApplyDeadKey(e);
if (e.IsAlpha && e.OnlyShiftOrCaps)
{
e.KeyString = ParseChar(e);
e.ShouldBeDisplayed = true;
e.StrokeType = KeystrokeType.Text;
e.Deletable = true;
Log.e("KP", " IsAlpha and OnlyShiftOrCaps > ParseChar");
}
else if (e.IsNumeric && e.NoModifiers)
{
e.KeyString = ParseNumeric(e);
e.ShouldBeDisplayed = true;
e.StrokeType = KeystrokeType.Text;
e.Deletable = true;
Log.e("KP", " e.IsNumeric && e.NoModifiers > ParseNumeric");
}
else if (e.ModifierToggledEvent) // vkcode is modifier
{
e.ShouldBeDisplayed = false;
AddModifier((Keys)e.vkCode, e);
e.StrokeType = KeystrokeType.Modifiers;
Log.e("KP", " e.ModifierToggledEvent > AddModifier " + ((Keys)e.vkCode).ToString());
}
else if (e.IsNoUnicodekey && e.NoModifiers)
{
ParseTexttViaSpecialkeysParser(e);
e.Deletable = IsDeletableSpecialKey(e.Key);
Log.e("KP", " e.IsNoUnicodekey && e.NoModifiers > ParseTexttViaSpecialkeysParser ");
}
else if (e.IsNoUnicodekey && !e.NoModifiers) // Shortcut
{
ParseShortcutViaSpecialkeysParser(e);
Log.e("KP", " e.IsNoUnicodekey && !e.NoModifiers > ParseShortcutViaSpecialkeysParser ");
}
else if (e.NoModifiers) // Simple Key, but not alphanumeric (first try special then unicode)
{
Log.e("KP", " e.NoModifiers > try SpecialkeysParser.ToString ");
try
{
e.KeyString = SpecialkeysParser.ToString((Keys)e.vkCode);
}
catch (NotImplementedException)
{
Log.e("KP", " e.NoModifiers 2> try KeyboardLayoutParser.ParseViaToUnicode ");
e.KeyString = KeyboardLayoutParser.ParseViaToUnicode(e);
BackupDeadKey(e);
}
e.ShouldBeDisplayed = true;
e.StrokeType = KeystrokeType.Text;
e.RequiresNewLineAfterwards = (Keys)e.vkCode == Keys.Return;
}
else if (e.OnlyShiftOrCaps) // special char, but only Shifted, eg ;:_ÖÄ'*ÜP
// (e.IsNoUnicodekey is always false here -> could be a unicode key combinatin)
{
e.KeyString = KeyboardLayoutParser.ParseViaToUnicode(e);
BackupDeadKey(e);
Log.e("KP", " e.OnlyShiftOrCaps > try KeyboardLayoutParser.ParseViaToUnicode ");
if (e.KeyString != "")
{
e.ShouldBeDisplayed = true;
e.StrokeType = KeystrokeType.Text;
e.Deletable = true;
}
else
{
// Is no unicode key combination? maybe a shortcut then: Shift + F2
ParseShortcutViaSpecialkeysParser(e);
Log.e("KP", " e.OnlyShiftOrCaps 2> ParseShortcutViaSpecialkeysParser ");
}
}
else if (!e.NoModifiers && !e.OnlyShiftOrCaps) // Special Char with Strg + Alt
// or shortcut else
{
// could be something like the german @ (Ctrl + Alt + Q)
// Temporary disabled because ToUnicode returns more often values than it should
e.KeyString = ""; //KeyboardLayoutParser.ParseViaToUnicode(e);
Log.e("KP", " !e.NoModifiers && !e.OnlyShiftOrCapss > KeyboardLayoutParser.ParseViaToUnicode");
// all other special char keycodes do not use Shift
if (e.KeyString != "" && !e.Shift && !e.IsNoUnicodekey)
{
e.ShouldBeDisplayed = true;
e.StrokeType = KeystrokeType.Text;
e.Deletable = true;
}
else // Shortcut
{
ParseShortcutViaSpecialkeysParser(e);
string possibleChar = KeyboardLayoutParser.ParseViaToUnicode(e);
BackupDeadKey(e);
if (possibleChar != "" && !CheckIsAlpha(possibleChar) &&
!CheckIsNumeric(possibleChar) &&
CheckIsASCII(possibleChar))
{
e.KeyString += " (" + possibleChar + ")";
}
Log.e("KP", " !e.NoModifiers && !e.OnlyShiftOrCapss 2> ParseShortcutViaSpecialkeysParser ");
}
}
Log.e("KP", " str:" + e.KeyString);
}
if (e.Method == KeyUpDown.Up)
{
if (e.ModifierToggledEvent) // vkcode is modifier
{
e.ShouldBeDisplayed = false;
RemoveModifier((Keys)e.vkCode, e);
e.StrokeType = KeystrokeType.Modifiers;
}
Log.e("KP", " code:" + ((Keys)e.vkCode).ToString());
// only react to modifiers on key up, nothing else
}
if (e.StrokeType != KeystrokeType.Undefined)
{
OnKeystrokeEvent(e);
}
}