private void txtApiConsole_KeyDown(object sender, KeyEventArgs e)
{
// Always go to the end of the textbox, never type in the middle
txtApiConsole.SelectionStart = txtApiConsole.TextLength;
txtApiConsole.ScrollToCaret();
// Never remove the last >
if (e.KeyCode == Keys.Back)
{
if (txtApiConsole.Text[txtApiConsole.TextLength - 1] == '>')
{
e.SuppressKeyPress = true;
}
}
if (e.KeyCode == Keys.Enter)
{
string[] splitStrings = txtApiConsole.Text.Split('>');
string trimmed = splitStrings[splitStrings.Length - 1].Trim();
// Only the last line starting with a > is needed
// Avoid sending empty requests
if (trimmed != string.Empty)
{
_apiCommands.Insert(0, trimmed);
Dictionary <string, string>[] request = PruvotApi.Request(Rig.IpAddress, Rig.Port, trimmed);
if (request != null)
{
txtApiConsole.AppendText(Environment.NewLine +
JsonConvert.SerializeObject(request, Formatting.Indented)
+ Environment.NewLine + " > ");
_apiCommandsIndex = 0;
}
}
else
{
txtApiConsole.AppendText(Environment.NewLine + " > ");
}
e.SuppressKeyPress = true;
}
if (e.KeyCode == Keys.Up || e.KeyCode == Keys.Down)
{
if (string.IsNullOrEmpty(_stringBeforeUpOrDown))
{
_stringBeforeUpOrDown = txtApiConsole.Lines[txtApiConsole.Lines.Length - 1];
// Keep the current string in memory when browsing through history of commands
}
StringBuilder sb = new StringBuilder(txtApiConsole.TextLength);
for (int index = 0; index < txtApiConsole.Lines.Length - 1; index++)
{
sb.AppendLine(txtApiConsole.Lines[index]);
}
if (_apiCommands.Count > 0)
{
if (e.KeyCode == Keys.Up)
{
if (_apiCommandsIndex >= _apiCommands.Count)
{
_apiCommandsIndex = _apiCommands.Count - 1;
}
sb.AppendLine(" > " + _apiCommands[_apiCommandsIndex]);
}
else
{
_apiCommandsIndex -= 2;
// -2 seems to give the most normal behavior
if (_apiCommandsIndex < 0)
{
_apiCommandsIndex = -1;
sb.AppendLine(_stringBeforeUpOrDown);
}
else
{
sb.AppendLine(" > " + _apiCommands[_apiCommandsIndex]);
}
}
_apiCommandsIndex++;
}
else
{
sb.AppendLine(_stringBeforeUpOrDown);
}
txtApiConsole.Text = sb.ToString(0, sb.Length - 2);
txtApiConsole.SelectionStart = txtApiConsole.TextLength;
txtApiConsole.ScrollToCaret();
e.SuppressKeyPress = true;
}
else
{
_stringBeforeUpOrDown = string.Empty;
}
}
