/// <summary>
/// Add a key to the sequence currently being built. If necessary, output
/// the finished sequence or trigger actions for invalid sequences.
/// </summary>
private static bool AddToSequence(Key key)
{
KeySequence old_sequence = new KeySequence(m_sequence);
m_sequence.Add(key);
// We try the following, in this order:
// 1. if m_sequence + key is a valid sequence, we don't go further,
// we append key to m_sequence and output the result.
// 2. if m_sequence + key is a valid prefix, it means the user
// could type other characters to build a longer sequence,
// so just append key to m_sequence.
// 3. if m_sequence + key is a valid generic prefix, continue as well.
// 4. if m_sequence + key is a valid sequence, send it.
// 5. (optionally) try again 1. and 2. ignoring case.
// 6. none of the characters make sense, output all of them as if
// the user didn't press Compose.
foreach (bool ignore_case in Settings.CaseInsensitive.Value ?
new bool[] { false, true } : new bool[] { false })
{
if (Settings.IsValidSequence(m_sequence, ignore_case))
{
string tosend = Settings.GetSequenceResult(m_sequence,
ignore_case);
Stats.AddSequence(m_sequence);
Log.Debug("Valid sequence! Sending {0}", tosend);
ResetSequence();
SendString(tosend);
return(true);
}
if (Settings.IsValidPrefix(m_sequence, ignore_case))
{
// Still a valid prefix, continue building sequence
return(true);
}
if (!ignore_case)
{
if (Settings.IsValidGenericPrefix(m_sequence))
{
return(true);
}
if (Settings.IsValidGenericSequence(m_sequence))
{
string tosend = Settings.GetGenericSequenceResult(m_sequence);
Stats.AddSequence(m_sequence);
Log.Debug("Valid generic sequence! Sending {0}", tosend);
ResetSequence();
SendString(tosend);
return(true);
}
}
// Try to swap characters if the corresponding option is set
if (m_sequence.Count == 2 && Settings.SwapOnInvalid.Value)
{
var other_sequence = new KeySequence()
{
m_sequence[1], m_sequence[0]
};
if (Settings.IsValidSequence(other_sequence, ignore_case))
{
string tosend = Settings.GetSequenceResult(other_sequence,
ignore_case);
Stats.AddSequence(other_sequence);
Log.Debug("Found swapped sequence! Sending {0}", tosend);
ResetSequence();
SendString(tosend);
return(true);
}
}
}
// Unknown characters for sequence, print them if necessary
if (!Settings.DiscardOnInvalid.Value)
{
foreach (Key k in m_sequence)
{
// FIXME: what if the key is e.g. left arrow?
if (k.IsPrintable)
{
SendString(k.ToString());
}
}
}
if (Settings.BeepOnInvalid.Value)
{
SystemSounds.Beep.Play();
}
ResetSequence();
return(true);
}
/// <summary>
/// Add a key to the sequence currently being built. If necessary, output
/// the finished sequence or trigger actions for invalid sequences.
/// </summary>
private static bool AddToSequence(Key key)
{
KeySequence old_sequence = new KeySequence(m_sequence);
m_sequence.Add(key);
// We try the following, in this order:
// 1. if m_sequence + key is a valid sequence, we don't go further,
// we append key to m_sequence and output the result.
// 2. if m_sequence + key is a valid prefix, it means the user
// could type other characters to build a longer sequence,
// so just append key to m_sequence.
// 3. if m_sequence + key is a valid generic prefix, continue as well.
// 4. if m_sequence + key is a valid sequence, send it.
// 5. (optionally) try again 1. and 2. ignoring case.
// 6. none of the characters make sense, output all of them as if
// the user didn't press Compose.
foreach (bool ignore_case in Settings.CaseInsensitive.Value ?
new bool[] { false, true } : new bool[] { false })
{
if (Settings.IsValidSequence(m_sequence, ignore_case))
{
string tosend = Settings.GetSequenceResult(m_sequence,
ignore_case);
SendString(tosend);
Log.Debug("Valid sequence! Sent “{0}”", tosend);
Stats.AddSequence(m_sequence);
ResetSequence();
return(true);
}
if (Settings.IsValidPrefix(m_sequence, ignore_case))
{
// Still a valid prefix, continue building sequence
return(true);
}
if (!ignore_case)
{
if (Settings.IsValidGenericPrefix(m_sequence))
{
return(true);
}
if (Settings.GetGenericSequenceResult(m_sequence, out var tosend))
{
SendString(tosend);
Log.Debug("Valid generic sequence! Sent “{0}”", tosend);
Stats.AddSequence(m_sequence);
ResetSequence();
return(true);
}
}
// Wait for a second character if SwapOnInvalid is true
if (m_sequence.Count == 1 && Settings.SwapOnInvalid.Value)
{
return(true);
}
// Try to swap characters if the corresponding option is set
if (m_sequence.Count == 2 && Settings.SwapOnInvalid.Value)
{
var other_sequence = new KeySequence()
{
m_sequence[1], m_sequence[0]
};
if (Settings.IsValidSequence(other_sequence, ignore_case))
{
string tosend = Settings.GetSequenceResult(other_sequence,
ignore_case);
SendString(tosend);
Log.Debug("Found swapped sequence! Sent “{0}”", tosend);
Stats.AddSequence(other_sequence);
ResetSequence();
return(true);
}
}
}
// FIXME: At this point we know the key can’t be part of a valid
// sequence, but this should not be a hard error if the key is a
// modifier key.
OnInvalidSequence();
return(true);
}