Struct PaneDragResizeMachine 

pub struct PaneDragResizeMachine { /* private fields */ }

Runtime lifecycle machine for pane drag/resize interactions.

Implementations

impl PaneDragResizeMachine

pub fn new(drag_threshold: u16) -> Result<Self, PaneDragResizeMachineError>

Construct a drag/resize lifecycle machine with explicit threshold.

pub fn new_with_hysteresis( drag_threshold: u16, update_hysteresis: u16, ) -> Result<Self, PaneDragResizeMachineError>

Construct a drag/resize lifecycle machine with explicit threshold and drag-update hysteresis.

pub const fn state(&self) -> PaneDragResizeState

Current lifecycle state.

pub const fn drag_threshold(&self) -> u16

Configured drag-start threshold.

pub const fn update_hysteresis(&self) -> u16

Configured drag-update hysteresis threshold.

pub const fn is_active(&self) -> bool

Whether the machine is in a non-idle state (Armed or Dragging).

pub fn force_cancel(&mut self) -> Option<PaneDragResizeTransition>

Unconditionally reset the machine to Idle, returning a diagnostic transition if the machine was in an active state.

This is a safety valve for RAII cleanup paths (panic, signal, guard drop) where constructing a valid PaneSemanticInputEvent is not possible. The returned transition carries PaneCancelReason::Programmatic and a Canceled effect.

If the machine is already Idle, returns None (no-op).

pub fn apply_event( &mut self, event: &PaneSemanticInputEvent, ) -> Result<PaneDragResizeTransition, PaneDragResizeMachineError>

Apply one semantic pane input event and emit deterministic transition diagnostics.

Trait Implementations

impl Clone for PaneDragResizeMachine

fn clone(&self) -> PaneDragResizeMachine

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PaneDragResizeMachine

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

Formats the value using the given formatter.

impl Default for PaneDragResizeMachine

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PaneDragResizeMachine

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PaneDragResizeMachine

fn eq(&self, other: &PaneDragResizeMachine) -> 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 PaneDragResizeMachine

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PaneDragResizeMachine

impl StructuralPartialEq for PaneDragResizeMachine