remove static method

bool remove(Keybinding keybinding, [ Function? callback ])

Removes the callback(s) associated with keybinding from Keybinder.

If a callback was provided, only that callback will be removed, otherwise if callback is null, every callback bound to keybinding will be removed.

Returns false if the keybinding isn't bound to any callbacks, of if callback was provided, but wasn't bound to keybinding, otherwise returns true.

Implementation

static bool remove(Keybinding keybinding, [Function? callback]) {
  if (!_keybindings.containsKey(keybinding)) {
    return false;
  }

  // If a callback wasn't provided, remove the [keybinding]
  // along with every callback bound to it.
  if (callback == null) {
    _keybindings.remove(keybinding);
    return true;
  }

  final wasRemoved = _keybindings[keybinding]!.remove(callback);

  // If there are no longer any callbacks registered to [keybinding],
  // remove it from the map.
  if (wasRemoved && _keybindings[keybinding]!.isEmpty) {
    _keybindings.remove(keybinding);
  }

  return wasRemoved;
}