Enum UndoRequest 

pub enum UndoRequest {
    Undo,
    Redo,
}

A widget’s request that the host drive the history. The host performs it through the one undo implementation; a widget never touches the stacks.

Variants

Undo

Redo

Implementations

impl UndoRequest

pub fn verb(self) -> &'static str

Lower-case verb, for composed sentences ("Nothing to undo").

pub fn title(self) -> &'static str

Title-case label, for a control’s accessible name.

pub fn shortcut(self) -> &'static str

The keyboard shortcut the host binds to this verb, for a tooltip — so the control teaches the shortcut rather than replacing it.

Trait Implementations

impl Clone for UndoRequest

fn clone(&self) -> UndoRequest

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UndoRequest

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for UndoRequest

fn deserialize<__D>( __deserializer: __D, ) -> Result<UndoRequest, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for UndoRequest

fn eq(&self, other: &UndoRequest) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for UndoRequest

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for UndoRequest

impl Eq for UndoRequest

impl StructuralPartialEq for UndoRequest