/// <summary>
/// Called when a key is pressed.
/// </summary>
/// <param name="eventKey">The event key.</param>
/// <returns></returns>
protected override bool OnKeyPressEvent(EventKey eventKey)
{
// If we don't have a line buffer, don't do anything.
if (LineBuffer == null)
{
return(false);
}
// Decompose the key into its components.
ModifierType modifier;
Key key;
GdkUtility.DecomposeKeys(eventKey, out key, out modifier);
// Get the unicode character for this key.
uint unicodeChar = Keyval.ToUnicode(eventKey.KeyValue);
// Pass it on to the controller.
return(controller.HandleKeyPress(key, modifier, unicodeChar));
}
/// <summary>
/// Called when the <see cref="ActionManager"/> gets a key press and it passes
/// it on to the current keybindings.
/// </summary>
/// <param name="e">The <see cref="Gtk.KeyPressEventArgs"/> instance
/// containing the event data.</param>
public void KeyPressed(KeyPressEventArgs e)
{
// Decompose the key into its components.
ModifierType modifier;
Key key;
GdkUtility.DecomposeKeys(e.Event, out key, out modifier);
// Get the normalized string accelerator which we use for lookups.
bool isPartialAccelerator;
string accelerator = GdkUtility.ToAcceleratorString(
key, modifier, out isPartialAccelerator);
if (isPartialAccelerator)
{
// If we are partial, just ignore it.
return;
}
// Build a path with the current accelerator and the new one.
var acceleratorPath = new HierarchicalPath(accelerator, currentAccelerator);
// See if we have an accelerator for this path.
if (!keybindings.Contains(acceleratorPath))
{
// Reset the current accelerator key.
currentAccelerator = HierarchicalPath.AbsoluteRoot;
// We couldn't find it so return false.
e.RetVal = false;
return;
}
// Grab the accelerator for this key. If we don't have an item, then
// this is going to be a continued chain.
string actionName = keybindings.Get(acceleratorPath);
if (actionName == null)
{
// We are only the first part of an action chain.
currentAccelerator = acceleratorPath;
e.RetVal = true;
// TODO Fire an event to say incomplete accelerator.
return;
}
// We have found a terminal action, so get the action involved.
Action action = ActionManager.GetAction(actionName);
if (action != null)
{
action.Activate();
e.RetVal = true;
}
// Add it to the errors.
ActionManager.Messages.Add(
new SeverityMessage(
Severity.Error,
string.Format(
"Could not find action {0} to apply keybinding {1}.",
actionName,
acceleratorPath)));
// We couldn't find the action so we did nothing.
e.RetVal = false;
}