using Eto.Forms;
namespace NAPS2.EtoForms;
///
/// A helper class to assign keyboard shortcuts to commands.
///
public class KeyboardShortcutManager
{
private readonly Dictionary _dict = new();
private readonly Dictionary _commandDict = new();
private readonly Dictionary _customMap = new()
{
{ "mod", Application.Instance.CommonModifier },
{ "cmd", Keys.Application },
{ "ctrl", Keys.Control },
{ "del", Keys.Delete },
{ "ins", Keys.Insert },
{ "break", Keys.Pause },
{ "oemplus", Keys.Equal },
{ "oemminus", Keys.Minus },
{ "esc", Keys.Escape },
{ ".", Keys.Period },
{ "0", Keys.D0 },
{ "1", Keys.D1 },
{ "2", Keys.D2 },
{ "3", Keys.D3 },
{ "4", Keys.D4 },
{ "5", Keys.D5 },
{ "6", Keys.D6 },
{ "7", Keys.D7 },
{ "8", Keys.D8 },
{ "9", Keys.D9 }
};
public Keys Parse(string? value)
{
try
{
if (!string.IsNullOrWhiteSpace(value))
{
var keys = Keys.None;
foreach (var part in value!.Split('+').Select(x => x.Trim().ToLowerInvariant()))
{
if (_customMap.ContainsKey(part))
{
keys |= _customMap[part];
}
else
{
keys |= (Keys) Enum.Parse(typeof (Keys), part, true);
}
}
return keys;
}
}
catch (Exception ex)
{
Log.ErrorException("Error parsing keyboard shortcut", ex);
}
return Keys.None;
}
public bool Assign(string? value, Action action)
{
var keys = Parse(value);
if (keys != Keys.None)
{
_dict[keys] = action;
if (_commandDict.ContainsKey(keys))
{
_commandDict[keys].Shortcut = Keys.None;
_commandDict.Remove(keys);
}
return true;
}
return false;
}
public bool Assign(string? value, Command command, Action action)
{
var keys = Parse(value);
if (keys != Keys.None)
{
try
{
command.Shortcut = keys;
_commandDict[keys] = command;
_dict[keys] = action;
}
catch (Exception)
{
_dict[keys] = action;
if (_commandDict.ContainsKey(keys))
{
_commandDict[keys].Shortcut = Keys.None;
_commandDict.Remove(keys);
}
}
return true;
}
return false;
}
public bool Assign(string? value, Command command)
{
return Assign(value, command, command.Execute);
}
public bool Perform(Keys keyData)
{
if (_dict.ContainsKey(keyData))
{
_dict[keyData]();
return true;
}
return false;
}
}