Struct SessionConfig 

pub struct SessionConfig {
    pub accelerator: Modifiers,
    pub redo_on_ctrl_y: bool,
    pub focusable: Vec<Subtype>,
    pub max_undo_items: u32,
    pub max_calculate_depth: u32,
}

The switches a caller sets once and the engine reads.

Fields

accelerator: Modifiers

Which modifier means “this is a shortcut, not text”.

Control everywhere but Apple keyboards, where it is Meta. A field rather than a compile-time platform test, so that both behaviours are reachable — and testable — on one machine.

redo_on_ctrl_y: bool

Whether the accelerator with Y redoes.

True off Apple, false on it, where the same gesture is spelled with shift and Z. That asymmetry is real and is reproduced.

focusable: Vec<Subtype>

Which annotation subtypes join the focus ring. Widgets alone by default.

max_undo_items: u32

How many undo items a field keeps.

Clamped up to four: a replace-selection group is four items, and a capacity that could not hold one would have to evict half a group.

max_calculate_depth: u32

How deep a calculation may trigger another calculation.

One by default, which is the oracle’s answer and not a loose reading of it: upstream guards the sweep with a flag rather than a counter, so the outer sweep is authoritative and every nested call it provokes returns immediately — no nesting at all. The knob makes that configurable rather than looser, mirroring Limits::max_calculate_depth.

Implementations

impl SessionConfig

pub fn apple() -> SessionConfig

The defaults for an Apple keyboard: Meta accelerates, and the accelerator with Y does nothing.

Trait Implementations

impl Clone for SessionConfig

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 SessionConfig

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

Formats the value using the given formatter.

impl Default for SessionConfig

fn default() -> SessionConfig

Returns the “default value” for a type.

impl PartialEq for SessionConfig

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SessionConfig