Enum wayland_client::protocol::wl_touch::Event

pub enum Event {
    Down {
        serial: u32,
        time: u32,
        surface: Proxy<WlSurface>,
        id: i32,
        x: f64,
        y: f64,
    },
    Up {
        serial: u32,
        time: u32,
        id: i32,
    },
    Motion {
        time: u32,
        id: i32,
        x: f64,
        y: f64,
    },
    Frame,
    Cancel,
}

Variants

Down

touch down event and beginning of a touch sequence

A new touch point has appeared on the surface. This touch point is assigned a unique ID. Future events from this touch point reference this ID. The ID ceases to be valid after a touch up event and may be reused in the future.

Fields of Down

serial: u32time: u32surface: Proxy<WlSurface>id: i32x: f64y: f64

Up

end of a touch event sequence

The touch point has disappeared. No further events will be sent for this touch point and the touch point's ID is released and may be reused in a future touch down event.

Fields of Up

serial: u32time: u32id: i32

Motion

update of touch point coordinates

A touch point has changed coordinates.

Fields of Motion

time: u32id: i32x: f64y: f64

Frame

end of touch frame event

Indicates the end of a contact point list.

Cancel

touch session cancelled

Sent if the compositor decides the touch stream is a global gesture. No further events are sent to the clients from that particular gesture. Touch cancellation applies to all touch points currently active on this client's surface. The client is responsible for finalizing the touch points, future touch points on this surface may reuse the touch point ID.

Trait Implementations

impl MessageGroup for Event

const MESSAGES: &'static [MessageDesc]

Wire representation of this MessageGroup

type Map = ProxyMap

The wrapper type for ObjectMap allowing the mapping of Object and NewId arguments to the object map during parsing.

fn is_destructor(&self) -> bool

Whether this message is a destructor

fn opcode(&self) -> u16

The opcode of this message

fn child<Meta: ObjectMetadata>(
    opcode: u16,
    version: u32,
    meta: &Meta
) -> Option<Object<Meta>>

Retrieve the child Object associated with this message if any

fn from_raw(msg: Message, map: &mut Self::Map) -> Result<Self, ()>

Construct a message from its raw representation

fn into_raw(self, sender_id: u32) -> Message

Turn this message into its raw representation

unsafe fn from_raw_c(
    obj: *mut c_void,
    opcode: u32,
    args: *const wl_argument
) -> Result<Event, ()>

Construct a message of this group from its C representation

fn as_raw_c_in<F, T>(self, f: F) -> T where
    F: FnOnce(u32, &mut [wl_argument]) -> T, 

Build a C representation of this message