Struct UndoState 

pub struct UndoState {
    pub can_undo: bool,
    pub can_redo: bool,
    pub undo_label: String,
    pub redo_label: String,
}

The undo stack’s face, as a native front mirrors it (Toolkit::set_undo_state): what is possible and what the menu titles should say. Labels arrive already localized: a toolkit cannot invent translated text, the same rule as every other label in this file.

Fields

can_undo: bool

can_redo: bool

undo_label: String

The next undo unit’s display label (“Rename”), empty when nothing is undoable. Fronts interpolate it into the platform’s own title form (“Undo Rename”).

redo_label: String

Trait Implementations

impl Clone for UndoState

fn clone(&self) -> UndoState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UndoState

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

Formats the value using the given formatter.

impl Default for UndoState

fn default() -> UndoState

Returns the “default value” for a type.

impl PartialEq for UndoState

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for UndoState