public bool HasShortcut(IGlobalCommand command)
{
command.AssertParameterNotNull(nameof(command));
if (!CommandManager.IsRegistered(command))
{
throw new Exception("Error : Requesting shortcut information of an unknown command : The command is not registered in the command manager.");
}
return(command.Metadata.OfType <KeyShortcut>().Any());
}
public void ClearShortcut(IGlobalCommand command)
{
command.AssertParameterNotNull(nameof(command));
if (!CommandManager.IsRegistered(command))
{
throw new Exception($"Error : Requesting shortcut cleanup on an unknown command : The command is not registered in the CommandManager.");
}
if (HasShortcut(command))
{
var shortcut = GetShortcut(command);
command.Metadata.Remove(shortcut);
NotifyCommandShortcutsChanged(command);
}
}
public static GlobalCommandShortcutInformation CreateFromGlobalCommand(IGlobalCommand command)
{
command.AssertParameterNotNull(nameof(command));
var guid = command.Metadata.OfType <CommandGuid>().Single().Guid;
var hasShortcut = command.Metadata.OfType <KeyShortcut>().Any();
return(new GlobalCommandShortcutInformation()
{
CommandGuid = guid,
HasShortcut = hasShortcut,
IsDefault = true,
ModifierKeys = hasShortcut ? command.Metadata.OfType <KeyShortcut>().Single().ModifierKeys : ModifierKeys.None,
Key = hasShortcut ? command.Metadata.OfType <KeyShortcut>().Single().Key : Key.None
});
}
public KeyShortcut GetShortcut(IGlobalCommand command)
{
command.AssertParameterNotNull(nameof(command));
if (!CommandManager.IsRegistered(command))
{
throw new Exception("Error : Requesting shortcut information of an unknown command : The command is not registered in the command manager.");
}
try
{
return(command.Metadata.OfType <KeyShortcut>().Single());
}
catch (InvalidOperationException)
{
throw new Exception("Error : The specified command doesn't have an associated shortcut.");
}
}
public void SetShortcut(IGlobalCommand command, ModifierKeys modifierKeys, Key key)
{
command.AssertParameterNotNull(nameof(command));
if (!CommandManager.IsRegistered(command))
{
throw new Exception("Error : Cannot set the shortcut for the specified command : The command is not registered in the command manager.");
}
if (!LoadingScope.IsInScope)
{
var matchingElements = GetElementsMatchingShortcut(modifierKeys, key).Where(o => !(o == command));
if (matchingElements.Any())
{
throw new Exception($"Error setting the shortcut {modifierKeys.ToString()}+{key.ToString()} on command {GetElementName(command)} " +
$"because element(s) {string.Join(",", matchingElements.Select(o => GetElementName(o)))} already have a shortcut with the same " +
$"key combination.");
}
}
if (HasShortcut(command))
{
var shortcut = GetShortcut(command);
if (shortcut.ModifierKeys == modifierKeys && shortcut.Key == key)
{
return;
}
shortcut.ModifierKeys = modifierKeys;
shortcut.Key = key;
}
else
{
command.Metadata.Add(new KeyShortcut(modifierKeys, key));
}
NotifyCommandShortcutsChanged(command);
}
public bool Matches(IGlobalCommand command)
{
command.AssertParameterNotNull(nameof(command));
return(CommandGuid == command.Metadata.OfType <CommandGuid>().Single().Guid);
}