java.lang.Object
- com.vaadin.flow.component.ShortcutRegistration

All Implemented Interfaces:

Registration, Serializable
```
public class ShortcutRegistration
extends Object
implements Registration, Serializable
```
A registration object for both configuring and removing the registered keyboard shortcut.

Since:

1.3

Author:

Vaadin Ltd.

See Also:

Serialized Form

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`ShortcutRegistration`	`allowBrowserDefault()`	Allows the default keyboard event handling when the shortcut is invoked.
`ShortcutRegistration`	`allowEventPropagation()`	Allow the event to propagate upwards in the DOM tree, when the shortcut is invoked.
`ShortcutRegistration`	`bindLifecycleTo(Component component)`	Binds the shortcut's life cycle to that of the given `Component`.
`Key`	`getKey()`	Get the primary `Key` of the shortcut.
`Component`	`getLifecycleOwner()`	`Component` which controls when the shortcut is active and when it is not.
`Set<Key>`	`getModifiers()`	Get a set of `keys` where each `key` is an instance of a `KeyModifier`.
`Component`	`getOwner()`	Deprecated. This component has now multiple owners so this method has been replaced by #getOwners().
`Component[]`	`getOwners()`	The `Component`s which own the shortcuts key event listeners.
`boolean`	`isBrowserDefaultAllowed()`	Checks if the default key behaviour in the browser is allowed by the shortcut.
`boolean`	`isEventPropagationAllowed()`	Checks if the shortcut allows keydown event (associated with the shortcut) propagation in the browser.
`boolean`	`isResetFocusOnActiveElement()`	Checks if shortcut resets focus on active element before triggering shortcut event handler.
`boolean`	`isShortcutActive()`	Is the shortcut active on the current UI.
`ShortcutRegistration`	`listenOn(Component... listenOnComponents)`	Fluently define the `Component` onto which the shortcut's listener is bound.
`void`	`remove()`	Removes the `ShortcutRegistration`
`ShortcutRegistration`	`resetFocusOnActiveElement()`	Reset focus on active element before triggering shortcut event handler.
`void`	`setBrowserDefaultAllowed(boolean browserDefaultAllowed)`	Set whether the default key behavior is allowed in the browser.
`void`	`setEventPropagationAllowed(boolean eventPropagationAllowed)`	Set whether shortcut's keydown event is allowed to propagate up the DOM tree in the browser.
`void`	`setResetFocusOnActiveElement(boolean resetFocusOnActiveElement)`	Set if shortcut resets focus on active element before triggering shortcut event handler.
`String`	`toString()`
`ShortcutRegistration`	`withAlt()`	Fluently adds `KeyModifier.ALT` to the shortcut's modifiers.
`ShortcutRegistration`	`withCtrl()`	Fluently adds `KeyModifier.CONTROL` to the shortcut's modifiers.
`ShortcutRegistration`	`withMeta()`	Fluently adds `KeyModifier.META` to the shortcut's modifiers.
`ShortcutRegistration`	`withModifiers(KeyModifier... keyModifiers)`	Configures `KeyModifiers` for the shortcut.
`ShortcutRegistration`	`withShift()`	Fluently adds `KeyModifier.SHIFT` to the shortcut's modifiers.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - withModifiers
```
public ShortcutRegistration withModifiers(KeyModifier... keyModifiers)
```
    Configures KeyModifiers for the shortcut. Calling this method will overwrite any previously set modifier keys. Hence, calling shortcutRegistration.withModifiers(); will remove all previously set modifier keys.
    
    Parameters:
    
    keyModifiers - Key modifiers. Can be empty.
    
    Returns:
    
    this ShortcutRegistration
  - withAlt
```
public ShortcutRegistration withAlt()
```
    Fluently adds KeyModifier.ALT to the shortcut's modifiers.
    
    Returns:
    
    this ShortcutRegistration
  - withCtrl
```
public ShortcutRegistration withCtrl()
```
    Fluently adds KeyModifier.CONTROL to the shortcut's modifiers.
    
    Returns:
    
    this ShortcutRegistration
  - withMeta
```
public ShortcutRegistration withMeta()
```
    Fluently adds KeyModifier.META to the shortcut's modifiers.
    
    Returns:
    
    this ShortcutRegistration
  - withShift
```
public ShortcutRegistration withShift()
```
    Fluently adds KeyModifier.SHIFT to the shortcut's modifiers.
    
    Returns:
    
    this ShortcutRegistration
  - allowBrowserDefault
```
public ShortcutRegistration allowBrowserDefault()
```
    Allows the default keyboard event handling when the shortcut is invoked.
    
    Returns:
    
    this ShortcutRegistration
    
    See Also:
    
    setBrowserDefaultAllowed(boolean)
  - allowEventPropagation
```
public ShortcutRegistration allowEventPropagation()
```
    Allow the event to propagate upwards in the DOM tree, when the shortcut is invoked.
    
    Returns:
    
    this ShortcutRegistration
    
    See Also:
    
    setEventPropagationAllowed(boolean)
  - resetFocusOnActiveElement
```
public ShortcutRegistration resetFocusOnActiveElement()
```
    Reset focus on active element before triggering shortcut event handler.
    
    Returns:
    
    this ShortcutRegistration
    
    See Also:
    
    setResetFocusOnActiveElement(boolean)
  - bindLifecycleTo
```
public ShortcutRegistration bindLifecycleTo(Component component)
```
    Binds the shortcut's life cycle to that of the given Component. When the given component is attached, the shortcut's listener is attached to the Component that owns the shortcut. When the given component is detached, so is the listener. is detached, the shortcut is removed from all attached scopes.
    
    Parameters:
    
    component - New lifecycle owner of the shortcut
    
    Returns:
    
    this ShortcutRegistration
  - listenOn
```
public ShortcutRegistration listenOn(Component... listenOnComponents)
```
    Fluently define the Component onto which the shortcut's listener is bound. Calling this method will remove the previous listener from the component it was bound to.
    
    Parameters:
    
    listenOnComponents - Components onto which the shortcut listeners are bound. Must not be null. Must not contain null. Must not have duplicate components.
    
    Returns:
    
    this ShortcutRegistration
  - remove
```
public void remove()
```
    Removes the ShortcutRegistration
    Removes all the underlying registrations tied to owner and lifecycle owner components.
    
    Specified by:
    
    remove in interface Registration
    
    See Also:
    
    Registration.once(Command)
  - isShortcutActive
```
public boolean isShortcutActive()
```
    Is the shortcut active on the current UI. For this to be true, the lifecycle owner needs to be attached and visible and handler owner needs to be attached.
    
    Returns:
    
    Is the shortcut active
  - getKey
```
public Key getKey()
```
    Get the primary Key of the shortcut. Primary key can be any key besides modifier keys.
    
    Returns:
    
    Primary key
  - getModifiers
```
public Set<Key> getModifiers()
```
    Get a set of keys where each key is an instance of a KeyModifier.
    
    Returns:
    
    Set of modifier keys
  - isBrowserDefaultAllowed
```
public boolean isBrowserDefaultAllowed()
```
    Checks if the default key behaviour in the browser is allowed by the shortcut. The default value is false.
    
    Returns:
    
    Allows default key behavior
  - setBrowserDefaultAllowed
```
public void setBrowserDefaultAllowed(boolean browserDefaultAllowed)
```
    Set whether the default key behavior is allowed in the browser. The default value is false, and it prevents the default key events from taking place in the browser.
    
    Parameters:
    
    browserDefaultAllowed - Allow default behavior on keydown
  - isEventPropagationAllowed
```
public boolean isEventPropagationAllowed()
```
    Checks if the shortcut allows keydown event (associated with the shortcut) propagation in the browser. The default value is false.
    
    Returns:
    
    Allows event propagation
  - setEventPropagationAllowed
```
public void setEventPropagationAllowed(boolean eventPropagationAllowed)
```
    Set whether shortcut's keydown event is allowed to propagate up the DOM tree in the browser. The default value is false, and the DOM event is consumed by the shortcut handler.
    
    Parameters:
    
    eventPropagationAllowed - Allow event propagation
  - isResetFocusOnActiveElement
```
public boolean isResetFocusOnActiveElement()
```
    Checks if shortcut resets focus on active element before triggering shortcut event handler.
    
    Returns:
    
    True when focus is reset on the active element, false otherwise.
  - setResetFocusOnActiveElement
```
public void setResetFocusOnActiveElement(boolean resetFocusOnActiveElement)
```
    Set if shortcut resets focus on active element before triggering shortcut event handler. Reset means to first blur() and then focus() the element. If element is an input field with a ValueChangeMode.ON_CHANGE, then resetting focus ensures that value change event is triggered before shortcut event is handled. Active element is document.activeElement or shadowRoot.activeElement if active element is the shadowRoot.
    
    Parameters:
    
    resetFocusOnActiveElement - Reset focus on active element
  - getOwner
```
@Deprecated
public Component getOwner()
```
    Deprecated.
    This component has now multiple owners so this method has been replaced by #getOwners().
    
    Component which owns the first shortcuts key event listener.
    
    Returns:
    
    Component
  - getOwners
```
public Component[] getOwners()
```
    The Components which own the shortcuts key event listeners.
    
    Returns:
    
    Component[]
  - getLifecycleOwner
```
public Component getLifecycleOwner()
```
    Component which controls when the shortcut is active and when it is not.
    
    Returns:
    
    Component
    
    See Also:
    
    isShortcutActive()
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class ShortcutRegistration

Method Summary

Methods inherited from class java.lang.Object

Method Detail

withModifiers

withAlt

withCtrl

withMeta

withShift

allowBrowserDefault

allowEventPropagation

resetFocusOnActiveElement

bindLifecycleTo

listenOn

remove

isShortcutActive

getKey

getModifiers

isBrowserDefaultAllowed

setBrowserDefaultAllowed

isEventPropagationAllowed

setEventPropagationAllowed

isResetFocusOnActiveElement

setResetFocusOnActiveElement

getOwner

getOwners

getLifecycleOwner

toString