Struct Gate 

pub struct Gate { /* private fields */ }

Whether the actions that reach into a container may be used, and what to say when they may not.

Every action that would start a container, copy into one or delete a volume goes through a gate: while it is shut the action is drawn dead and carries the reason, instead of looking alive and failing with the engine’s own error once it is pressed. The reason is given twice, as a tooltip for the pointer and as a line the screen prints beside the actions for the keyboard, because a dead control takes no focus and a tooltip alone would only ever reach a mouse.

Implementations

impl Gate

pub fn of(engine: &EngineState) -> Self

The gate as engine leaves it.

pub fn shut(reason: impl Into<String>) -> Self

A gate that is shut for reason, for the actions kept back by something nearer than the engine, such as a profile that has no login to work on.

pub fn is_open(&self) -> bool

Whether the actions behind the gate may be used.

pub fn reason(&self) -> Option<&str>

Why they may not, while they may not.

pub fn show<Msg: 'static>( &self, ui: &mut View<'_, Msg>, build: impl FnOnce(&mut View<'_, Msg>, bool), )

Adds what build draws and, while the gate is shut, wraps it in a tooltip saying why. build is handed whether the gate is open, to pass straight on to disabled.

Trait Implementations

impl Clone for Gate

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Gate

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

Formats the value using the given formatter.

impl Eq for Gate

impl PartialEq for Gate

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Gate