Struct DragState 

pub struct DragState { /* private fields */ }

Pointer drag tracker.

Implementations

impl DragState

pub fn new(x: f32, y: f32) -> Self

Create a drag tracker at an initial position.

pub fn set_axis(&self, axis_name: &str) -> Result<(), JsValue>

Set axis filter.

pub fn set_bounds(&self, min_x: f32, max_x: f32, min_y: f32, max_y: f32)

Set rectangular bounds.

pub fn set_grid_snap(&self, grid: f32)

Set grid snap size.

pub fn to_array(&self) -> Float32Array

Current position.

pub fn velocity_array(&self) -> Float32Array

Current velocity.

pub fn is_dragging(&self) -> bool

Whether pointer is captured.

pub fn pointer_down(&self, x: f32, y: f32, pointer_id: u32)

Pointer down.

pub fn pointer_move(&self, x: f32, y: f32, pointer_id: u32, dt: f32)

Pointer move with seconds delta.

pub fn pointer_up(&self, x: f32, y: f32, pointer_id: u32) -> Option<Inertia2D>

Pointer up. Returns inertia when release velocity is high enough.

pub fn snap_to(&self, x: f32, y: f32)

Snap instantly to a position.

Trait Implementations

impl Clone for DragState

fn clone(&self) -> DragState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DragState

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

Formats the value using the given formatter.

impl From<DragState> for JsValue

fn from(value: DragState) -> Self

Converts to this type from the input type.

impl FromWasmAbi for DragState

type Abi = WasmPtr<WasmRefCell<DragState>>

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for DragState

type Abi = WasmPtr<WasmRefCell<DragState>>

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl LongRefFromWasmAbi for DragState

type Abi = WasmPtr<WasmRefCell<DragState>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<DragState>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for DragState

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for DragState

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for DragState

type Abi = WasmPtr<WasmRefCell<DragState>>

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<DragState>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for DragState

type Abi = WasmPtr<WasmRefCell<DragState>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<DragState>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl TryFromJsValue for DragState

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for DragState

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[DragState]>

impl VectorIntoWasmAbi for DragState

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[DragState]>) -> Self::Abi

impl WasmDescribe for DragState

fn describe()

impl WasmDescribeVector for DragState

fn describe_vector()

impl SupportsConstructor for DragState

impl SupportsInstanceProperty for DragState

impl SupportsStaticProperty for DragState