Module java.desktop
Package javax.swing.text

# Interface Keymap

public interface Keymap
A collection of bindings of KeyStrokes to actions. The bindings are basically name-value pairs that potentially resolve in a hierarchy.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `addActionForKeyStroke(KeyStroke key, Action a)`
  Adds a binding to the keymap.
  `Action`
  `getAction(KeyStroke key)`
  Fetches the action appropriate for the given symbolic event sequence.
  `Action[]`
  `getBoundActions()`
  Fetches all of the actions defined in this keymap.
  `KeyStroke[]`
  `getBoundKeyStrokes()`
  Fetches all of the keystrokes in this map that are bound to some action.
  `Action`
  `getDefaultAction()`
  Fetches the default action to fire if a key is typed (i.e. a KEY_TYPED KeyEvent is received) and there is no binding for it.
  `KeyStroke[]`
  `getKeyStrokesForAction(Action a)`
  Fetches the keystrokes that will result in the given action.
  `String`
  `getName()`
  Fetches the name of the set of key-bindings.
  `Keymap`
  `getResolveParent()`
  Fetches the parent keymap used to resolve key-bindings.
  `boolean`
  `isLocallyDefined(KeyStroke key)`
  Determines if the given key sequence is locally defined.
  `void`
  `removeBindings()`
  Removes all bindings from the keymap.
  `void`
  `removeKeyStrokeBinding(KeyStroke keys)`
  Removes a binding from the keymap.
  `void`
  `setDefaultAction(Action a)`
  Set the default action to fire if a key is typed.
  `void`
  `setResolveParent(Keymap parent)`
  Sets the parent keymap, which will be used to resolve key-bindings.

- ## Method Details

  - ### getName

    String getName()
    Fetches the name of the set of key-bindings.
    Returns:
      the name

  - ### getDefaultAction

    Action getDefaultAction()
    Fetches the default action to fire if a key is typed (i.e. a KEY_TYPED KeyEvent is received) and there is no binding for it. Typically this would be some action that inserts text so that the keymap doesn't require an action for each possible key.
    Returns:
      the default action

  - ### setDefaultAction

    void setDefaultAction(Action a)
    Set the default action to fire if a key is typed.
    Parameters:
      `a` - the action

  - ### getAction

    Action getAction(KeyStroke key)
    Fetches the action appropriate for the given symbolic event sequence. This is used by JTextController to determine how to interpret key sequences. If the binding is not resolved locally, an attempt is made to resolve through the parent keymap, if one is set.
    Parameters:
      `key` - the key sequence
    Returns:
      the action associated with the key sequence if one is defined, otherwise `null`

  - ### getBoundKeyStrokes

    KeyStroke[] getBoundKeyStrokes()
    Fetches all of the keystrokes in this map that are bound to some action.
    Returns:
      the list of keystrokes

  - ### getBoundActions

    Action[] getBoundActions()
    Fetches all of the actions defined in this keymap.
    Returns:
      the list of actions

  - ### getKeyStrokesForAction

    KeyStroke[] getKeyStrokesForAction(Action a)
    Fetches the keystrokes that will result in the given action.
    Parameters:
      `a` - the action
    Returns:
      the list of keystrokes

  - ### isLocallyDefined

    boolean isLocallyDefined(KeyStroke key)
    Determines if the given key sequence is locally defined.
    Parameters:
      `key` - the key sequence
    Returns:
      true if the key sequence is locally defined else false

  - ### addActionForKeyStroke

    void addActionForKeyStroke(KeyStroke key, Action a)
    Adds a binding to the keymap.
    Parameters:
      `key` - the key sequence
      `a` - the action

  - ### removeKeyStrokeBinding

    void removeKeyStrokeBinding(KeyStroke keys)
    Removes a binding from the keymap.
    Parameters:
      `keys` - the key sequence

  - ### removeBindings

    void removeBindings()
    Removes all bindings from the keymap.

  - ### getResolveParent

    Keymap getResolveParent()
    Fetches the parent keymap used to resolve key-bindings.
    Returns:
      the keymap

  - ### setResolveParent

    void setResolveParent(Keymap parent)
    Sets the parent keymap, which will be used to resolve key-bindings. The behavior is unspecified if a `Keymap` has itself as one of its resolve parents.
    Parameters:
      `parent` - the parent keymap