Struct ScrollPhysicsState

Source

pub struct ScrollPhysicsState {
    pub input_queue: ScrollInputQueue,
    pub node_velocities: BTreeMap<(DomId, NodeId), NodeScrollPhysics>,
    pub pending_positions: BTreeMap<(DomId, NodeId), LogicalPosition>,
    pub scroll_physics: ScrollPhysics,
}

Expand description

State stored in the timer’s RefAny data.

Contains the shared input queue, per-node velocity state, and the global scroll physics configuration from SystemStyle.

Fields§

§input_queue: ScrollInputQueue

Shared input queue — same Arc as ScrollManager.scroll_input_queue

§node_velocities: BTreeMap<(DomId, NodeId), NodeScrollPhysics>

Per-node velocity tracking

§pending_positions: BTreeMap<(DomId, NodeId), LogicalPosition>

Per-node “forced position” from trackpad or programmatic scroll

§scroll_physics: ScrollPhysics

Global scroll physics configuration (from SystemStyle)

Implementations§

Source §

impl ScrollPhysicsState

Source

pub fn new(input_queue: ScrollInputQueue, scroll_physics: ScrollPhysics) -> Self

Create a new physics state with the shared input queue and global config

Source

pub fn is_active(&self) -> bool

Returns true if any node has non-zero velocity or there are pending inputs

Trait Implementations§

Source §

impl Debug for ScrollPhysicsState

Source §

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

impl UnwindSafe for ScrollPhysicsState

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §