Struct PointerEvent

pub struct PointerEvent {
    pub event_time: u64,
    pub device_id: u32,
    pub pointer_id: u32,
    pub type_: PointerEventType,
    pub phase: PointerEventPhase,
    pub x: f32,
    pub y: f32,
    pub radius_major: f32,
    pub radius_minor: f32,
    pub buttons: u32,
}

Pointers represent raw data about the user’s interaction with the screen.

The state transitions should be as follows: ADD (-> HOVER) -> DOWN -> MOVE -> UP (-> HOVER) -> REMOVE

At any point after the initial ADD, a transition to CANCEL is also possible.

Fields

event_time: u64

Time the event was delivered. The time is in nanoseconds and corresponds to the monotonic time as determined by the zx_clock_get_monotonic syscall.

device_id: u32

pointer_id: u32

type_: PointerEventType

phase: PointerEventPhase

x: f32

x and y are in the coordinate system of the View.

y: f32

radius_major: f32

radius_minor: f32

buttons: u32

Currently pressed buttons as defined the kButton constants such as kMousePrimaryButton

Trait Implementations

impl Clone for PointerEvent

fn clone(&self) -> PointerEvent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PointerEvent

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

Formats the value using the given formatter.

impl<D> Decode<PointerEvent, D> for PointerEvent

where D: ResourceDialect,

fn new_empty() -> PointerEvent

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, _depth: Depth, ) -> Result<(), Error>

Decodes an object of type T from the decoder’s buffers into self.

impl<D> Encode<PointerEvent, D> for &PointerEvent

where D: ResourceDialect,

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl PartialEq for PointerEvent

fn eq(&self, other: &PointerEvent) -> 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 PartialOrd for PointerEvent

fn partial_cmp(&self, other: &PointerEvent) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TypeMarker for PointerEvent

type Owned = PointerEvent

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for PointerEvent

type Borrowed<'a> = &'a PointerEvent

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow( value: &<PointerEvent as TypeMarker>::Owned, ) -> <PointerEvent as ValueTypeMarker>::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Copy for PointerEvent

impl Persistable for PointerEvent

impl StructuralPartialEq for PointerEvent