fidl_fuchsia_ui_pointer/

fidl_fuchsia_ui_pointer.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_fuchsia_ui_pointer_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, PartialEq)]
pub struct MouseSourceV2OnMouseEventsRequest {
    pub events: Vec<MouseEvent>,
    /// The stamp associated with the last event in this batch.
    /// Must be strictly increasing.
    pub last_event_stamp: u64,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for MouseSourceV2OnMouseEventsRequest
{
}

#[derive(Debug, PartialEq)]
pub struct MouseSourceWatchResponse {
    pub events: Vec<MouseEvent>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for MouseSourceWatchResponse {}

#[derive(Debug, PartialEq)]
pub struct TouchSourceV2OnTouchEventsRequest {
    pub events: Vec<TouchEvent>,
    /// The stamp associated with the last event in this batch.
    /// Must be strictly increasing.
    pub last_event_stamp: u64,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for TouchSourceV2OnTouchEventsRequest
{
}

#[derive(Debug, PartialEq)]
pub struct TouchSourceWatchResponse {
    pub events: Vec<TouchEvent>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for TouchSourceWatchResponse {}

#[derive(Debug, Default, PartialEq)]
pub struct MouseEvent {
    /// The time this event was observed.
    /// Required.
    pub timestamp: Option<i64>,
    /// The parameters of the associated view and viewport, sufficient to
    /// correctly interpret the position, orientation, magnitude, and
    /// inter-event distance of pointer events dispatched to a view.
    /// - It is issued on connection and on change.
    pub view_parameters: Option<ViewParameters>,
    /// A description of the mouse device, sufficient to correctly interpret
    /// the capabilities and usage intent of the device.
    /// - It is issued once per device.
    pub device_info: Option<MouseDeviceInfo>,
    /// A description of each sampled data point in a mouse event stream.
    ///
    /// Issuance policy. There are two dispatch modes, "hover" and "latched".
    /// Hover mode is default, and the stream is dispatched in fragments to the
    /// visible client that each mouse event hovers above. Latched mode directs
    /// the stream to a single client (regardless of view boundary) until
    /// unlatched. Latched mode is typically toggled when the user presses the
    /// primary mouse button, but is ultimately a product-specific policy.
    pub pointer_sample: Option<MousePointerSample>,
    /// The signal for view entry/exit in hover mode.
    /// - It is issued on hover entry into a view, and hover exit from a view.
    pub stream_info: Option<MouseEventStreamInfo>,
    /// An identifier to correlate this event's send/receive occurrence across
    /// component boundaries or abstraction layers.
    pub trace_flow_id: Option<u64>,
    /// Optional wake lease for power baton passing.
    pub wake_lease: Option<fidl::EventPair>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for MouseEvent {}

#[derive(Debug, Default, PartialEq)]
pub struct TouchEvent {
    /// The time this event was observed.
    /// Required.
    pub timestamp: Option<i64>,
    /// The parameters of the associated view and viewport, sufficient to
    /// correctly interpret the position, orientation, magnitude, and
    /// inter-event distance of touch events dispatched to a view.
    /// - It is issued on connection and on change.
    pub view_parameters: Option<ViewParameters>,
    /// A description of the pointer device, sufficient to correctly interpret
    /// the capabilities and usage intent of the device.
    /// - It is issued once per device.
    pub device_info: Option<TouchDeviceInfo>,
    /// A description of each sampled data point in an interaction of touch
    /// events.
    /// - It is issued on every sample in the interaction.
    pub pointer_sample: Option<TouchPointerSample>,
    /// The result of gesture disambiguation for a interaction of touch events.
    /// - It is issued once per interaction.
    pub interaction_result: Option<TouchInteractionResult>,
    /// An identifier to correlate this event's send/receive occurrence across
    /// component boundaries or abstraction layers.
    pub trace_flow_id: Option<u64>,
    /// Optional wake lease for power baton passing.
    pub wake_lease: Option<fidl::EventPair>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for TouchEvent {}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct MouseSourceMarker;

impl fidl::endpoints::ProtocolMarker for MouseSourceMarker {
    type Proxy = MouseSourceProxy;
    type RequestStream = MouseSourceRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = MouseSourceSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) MouseSource";
}

pub trait MouseSourceProxyInterface: Send + Sync {
    type WatchResponseFut: std::future::Future<Output = Result<Vec<MouseEvent>, fidl::Error>> + Send;
    fn r#watch(&self) -> Self::WatchResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct MouseSourceSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for MouseSourceSynchronousProxy {
    type Proxy = MouseSourceProxy;
    type Protocol = MouseSourceMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl MouseSourceSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<MouseSourceEvent, fidl::Error> {
        MouseSourceEvent::decode(self.client.wait_for_event::<MouseSourceMarker>(deadline)?)
    }

    /// A method for a client to receive mouse pointer events.
    ///
    /// This call is formulated as a "hanging get" pattern: the client asks for
    /// a set of recent events, and receives them via the callback. This
    /// pull-based approach ensures that clients consume events at their own
    /// pace; events don't clog up the channel in an unbounded manner.
    ///
    /// Flow control. The caller is allowed at most one in-flight |Watch| call
    /// at a time; it is a logical error to have concurrent calls to |Watch|.
    /// Non-compliance results in channel closure.
    ///
    /// Client pacing. The server will dispatch events to the caller on a FIFO,
    /// lossless, best-effort basis, but the caller must allocate enough time to
    /// keep up with new events.
    ///
    /// Event times. The timestamps on each event in the event vector are *not*
    /// guaranteed monotonic; events from different devices may be injected into
    /// Scenic at different times. Generally, events from a single device are
    /// expected to have monotonically increasing timestamps.
    ///
    /// View parameters. Occasionally, changes in view or viewport require
    /// notifying the client. If a |MouseEvent| carries |ViewParameters|, these
    /// parameters apply to successive |MousePointerSample|s until the next
    /// |ViewParameters|.
    pub fn r#watch(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<Vec<MouseEvent>, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            MouseSourceWatchResponse,
            MouseSourceMarker,
        >(
            (),
            0x5b1f6e917ac1abb4,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.events)
    }
}

#[cfg(target_os = "fuchsia")]
impl From<MouseSourceSynchronousProxy> for zx::NullableHandle {
    fn from(value: MouseSourceSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for MouseSourceSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for MouseSourceSynchronousProxy {
    type Protocol = MouseSourceMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<MouseSourceMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct MouseSourceProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for MouseSourceProxy {
    type Protocol = MouseSourceMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl MouseSourceProxy {
    /// Create a new Proxy for fuchsia.ui.pointer/MouseSource.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <MouseSourceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> MouseSourceEventStream {
        MouseSourceEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// A method for a client to receive mouse pointer events.
    ///
    /// This call is formulated as a "hanging get" pattern: the client asks for
    /// a set of recent events, and receives them via the callback. This
    /// pull-based approach ensures that clients consume events at their own
    /// pace; events don't clog up the channel in an unbounded manner.
    ///
    /// Flow control. The caller is allowed at most one in-flight |Watch| call
    /// at a time; it is a logical error to have concurrent calls to |Watch|.
    /// Non-compliance results in channel closure.
    ///
    /// Client pacing. The server will dispatch events to the caller on a FIFO,
    /// lossless, best-effort basis, but the caller must allocate enough time to
    /// keep up with new events.
    ///
    /// Event times. The timestamps on each event in the event vector are *not*
    /// guaranteed monotonic; events from different devices may be injected into
    /// Scenic at different times. Generally, events from a single device are
    /// expected to have monotonically increasing timestamps.
    ///
    /// View parameters. Occasionally, changes in view or viewport require
    /// notifying the client. If a |MouseEvent| carries |ViewParameters|, these
    /// parameters apply to successive |MousePointerSample|s until the next
    /// |ViewParameters|.
    pub fn r#watch(
        &self,
    ) -> fidl::client::QueryResponseFut<
        Vec<MouseEvent>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        MouseSourceProxyInterface::r#watch(self)
    }
}

impl MouseSourceProxyInterface for MouseSourceProxy {
    type WatchResponseFut = fidl::client::QueryResponseFut<
        Vec<MouseEvent>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch(&self) -> Self::WatchResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<Vec<MouseEvent>, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                MouseSourceWatchResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5b1f6e917ac1abb4,
            >(_buf?)?;
            Ok(_response.events)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, Vec<MouseEvent>>(
            (),
            0x5b1f6e917ac1abb4,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct MouseSourceEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for MouseSourceEventStream {}

impl futures::stream::FusedStream for MouseSourceEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for MouseSourceEventStream {
    type Item = Result<MouseSourceEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(MouseSourceEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum MouseSourceEvent {}

impl MouseSourceEvent {
    /// Decodes a message buffer as a [`MouseSourceEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<MouseSourceEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <MouseSourceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.ui.pointer/MouseSource.
pub struct MouseSourceRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for MouseSourceRequestStream {}

impl futures::stream::FusedStream for MouseSourceRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for MouseSourceRequestStream {
    type Protocol = MouseSourceMarker;
    type ControlHandle = MouseSourceControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        MouseSourceControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for MouseSourceRequestStream {
    type Item = Result<MouseSourceRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled MouseSourceRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x5b1f6e917ac1abb4 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = MouseSourceControlHandle { inner: this.inner.clone() };
                        Ok(MouseSourceRequest::Watch {
                            responder: MouseSourceWatchResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <MouseSourceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A method for a client to receive mouse pointer events.
///
/// The position of a pointer event is defined in the context of a viewport,
/// situated in the view. The dimensions of the view and viewport, and their
/// spatial relationship (defined with a transform matrix), are supplied
/// synchronously in a |ViewParameter| table. A view may retrieve a pointer's
/// position in its local coordinate system by applying the viewport-to-view
/// transform matrix.
///
/// The viewport is embedded in an independent and stable coordinate system,
/// suitable for interpreting pointer events in a scale-independent manner;
/// mouse movement will be observed at a constant scale, even under effects such
/// as magnification or panning. However, other effects, such as enlargening the
/// view's clip bounds, may trigger a change in the viewport extents.
#[derive(Debug)]
pub enum MouseSourceRequest {
    /// A method for a client to receive mouse pointer events.
    ///
    /// This call is formulated as a "hanging get" pattern: the client asks for
    /// a set of recent events, and receives them via the callback. This
    /// pull-based approach ensures that clients consume events at their own
    /// pace; events don't clog up the channel in an unbounded manner.
    ///
    /// Flow control. The caller is allowed at most one in-flight |Watch| call
    /// at a time; it is a logical error to have concurrent calls to |Watch|.
    /// Non-compliance results in channel closure.
    ///
    /// Client pacing. The server will dispatch events to the caller on a FIFO,
    /// lossless, best-effort basis, but the caller must allocate enough time to
    /// keep up with new events.
    ///
    /// Event times. The timestamps on each event in the event vector are *not*
    /// guaranteed monotonic; events from different devices may be injected into
    /// Scenic at different times. Generally, events from a single device are
    /// expected to have monotonically increasing timestamps.
    ///
    /// View parameters. Occasionally, changes in view or viewport require
    /// notifying the client. If a |MouseEvent| carries |ViewParameters|, these
    /// parameters apply to successive |MousePointerSample|s until the next
    /// |ViewParameters|.
    Watch { responder: MouseSourceWatchResponder },
}

impl MouseSourceRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_watch(self) -> Option<(MouseSourceWatchResponder)> {
        if let MouseSourceRequest::Watch { responder } = self { Some((responder)) } else { None }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            MouseSourceRequest::Watch { .. } => "watch",
        }
    }
}

#[derive(Debug, Clone)]
pub struct MouseSourceControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl MouseSourceControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for MouseSourceControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl MouseSourceControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct MouseSourceWatchResponder {
    control_handle: std::mem::ManuallyDrop<MouseSourceControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`MouseSourceControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for MouseSourceWatchResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for MouseSourceWatchResponder {
    type ControlHandle = MouseSourceControlHandle;

    fn control_handle(&self) -> &MouseSourceControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl MouseSourceWatchResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut events: Vec<MouseEvent>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(events);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut events: Vec<MouseEvent>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(events);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut events: Vec<MouseEvent>) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<MouseSourceWatchResponse>(
            (events.as_mut(),),
            self.tx_id,
            0x5b1f6e917ac1abb4,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct MouseSourceV2Marker;

impl fidl::endpoints::ProtocolMarker for MouseSourceV2Marker {
    type Proxy = MouseSourceV2Proxy;
    type RequestStream = MouseSourceV2RequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = MouseSourceV2SynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) MouseSourceV2";
}

pub trait MouseSourceV2ProxyInterface: Send + Sync {
    fn r#acknowledge_events(&self, last_acknowledged_event_stamp: u64) -> Result<(), fidl::Error>;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct MouseSourceV2SynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for MouseSourceV2SynchronousProxy {
    type Proxy = MouseSourceV2Proxy;
    type Protocol = MouseSourceV2Marker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl MouseSourceV2SynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<MouseSourceV2Event, fidl::Error> {
        MouseSourceV2Event::decode(self.client.wait_for_event::<MouseSourceV2Marker>(deadline)?)
    }

    /// Acknowledges receipt of events up to `last_acknowledged_event_stamp`.
    ///
    /// This grants the server "credits" to send more events. All events sent
    /// with a `last_event_stamp` less than or equal to
    /// `last_acknowledged_event_stamp` are considered acknowledged.
    ///
    /// The server (Scenic) will throttle event delivery when unacknowledged
    /// events in flight reach `MOUSE_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a
    /// product-configured maximum). Clients should send acknowledgments
    /// periodically (e.g. before reaching the limit, such as within 20
    /// remaining credits) to avoid being throttled.
    ///
    /// `last_acknowledged_event_stamp` must be strictly increasing.
    /// Non-compliance results in channel closure.
    pub fn r#acknowledge_events(
        &self,
        mut last_acknowledged_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        self.client.send::<MouseSourceV2AcknowledgeEventsRequest>(
            (last_acknowledged_event_stamp,),
            0x1be628961fdf2cf1,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[cfg(target_os = "fuchsia")]
impl From<MouseSourceV2SynchronousProxy> for zx::NullableHandle {
    fn from(value: MouseSourceV2SynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for MouseSourceV2SynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for MouseSourceV2SynchronousProxy {
    type Protocol = MouseSourceV2Marker;

    fn from_client(value: fidl::endpoints::ClientEnd<MouseSourceV2Marker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct MouseSourceV2Proxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for MouseSourceV2Proxy {
    type Protocol = MouseSourceV2Marker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl MouseSourceV2Proxy {
    /// Create a new Proxy for fuchsia.ui.pointer/MouseSourceV2.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <MouseSourceV2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> MouseSourceV2EventStream {
        MouseSourceV2EventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Acknowledges receipt of events up to `last_acknowledged_event_stamp`.
    ///
    /// This grants the server "credits" to send more events. All events sent
    /// with a `last_event_stamp` less than or equal to
    /// `last_acknowledged_event_stamp` are considered acknowledged.
    ///
    /// The server (Scenic) will throttle event delivery when unacknowledged
    /// events in flight reach `MOUSE_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a
    /// product-configured maximum). Clients should send acknowledgments
    /// periodically (e.g. before reaching the limit, such as within 20
    /// remaining credits) to avoid being throttled.
    ///
    /// `last_acknowledged_event_stamp` must be strictly increasing.
    /// Non-compliance results in channel closure.
    pub fn r#acknowledge_events(
        &self,
        mut last_acknowledged_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        MouseSourceV2ProxyInterface::r#acknowledge_events(self, last_acknowledged_event_stamp)
    }
}

impl MouseSourceV2ProxyInterface for MouseSourceV2Proxy {
    fn r#acknowledge_events(
        &self,
        mut last_acknowledged_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        self.client.send::<MouseSourceV2AcknowledgeEventsRequest>(
            (last_acknowledged_event_stamp,),
            0x1be628961fdf2cf1,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

pub struct MouseSourceV2EventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for MouseSourceV2EventStream {}

impl futures::stream::FusedStream for MouseSourceV2EventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for MouseSourceV2EventStream {
    type Item = Result<MouseSourceV2Event, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(MouseSourceV2Event::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum MouseSourceV2Event {
    OnMouseEvents {
        events: Vec<MouseEvent>,
        last_event_stamp: u64,
    },
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl MouseSourceV2Event {
    #[allow(irrefutable_let_patterns)]
    pub fn into_on_mouse_events(self) -> Option<(Vec<MouseEvent>, u64)> {
        if let MouseSourceV2Event::OnMouseEvents { events, last_event_stamp } = self {
            Some((events, last_event_stamp))
        } else {
            None
        }
    }

    /// Decodes a message buffer as a [`MouseSourceV2Event`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<MouseSourceV2Event, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            0x61f8d843a513238d => {
                let mut out = fidl::new_empty!(
                    MouseSourceV2OnMouseEventsRequest,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                );
                fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MouseSourceV2OnMouseEventsRequest>(&tx_header, _body_bytes, _handles, &mut out)?;
                Ok((MouseSourceV2Event::OnMouseEvents {
                    events: out.events,
                    last_event_stamp: out.last_event_stamp,
                }))
            }
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(MouseSourceV2Event::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <MouseSourceV2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.ui.pointer/MouseSourceV2.
pub struct MouseSourceV2RequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for MouseSourceV2RequestStream {}

impl futures::stream::FusedStream for MouseSourceV2RequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for MouseSourceV2RequestStream {
    type Protocol = MouseSourceV2Marker;
    type ControlHandle = MouseSourceV2ControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        MouseSourceV2ControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for MouseSourceV2RequestStream {
    type Item = Result<MouseSourceV2Request, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled MouseSourceV2RequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x1be628961fdf2cf1 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            MouseSourceV2AcknowledgeEventsRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<MouseSourceV2AcknowledgeEventsRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            MouseSourceV2ControlHandle { inner: this.inner.clone() };
                        Ok(MouseSourceV2Request::AcknowledgeEvents {
                            last_acknowledged_event_stamp: req.last_acknowledged_event_stamp,

                            control_handle,
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(MouseSourceV2Request::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: MouseSourceV2ControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(MouseSourceV2Request::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: MouseSourceV2ControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <MouseSourceV2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A push-based reader protocol for a client to receive mouse pointer events.
///
/// Streaming begins automatically on connection. Scenic dispatches mouse
/// events in hover fragments, starting with `ENTERED` and ending with `EXITED`
/// when the cursor leaves a view.
///
/// Flow control and acknowledgment rules:
/// - The server will not push more than
///   `MOUSE_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a product-configured
///   maximum) events without receiving an acknowledgment from the client.
///   The server (Scenic) will throttle event delivery when unacknowledged
///   events in flight reach this limit.
/// - Clients should send acknowledgments periodically (e.g. before reaching
///   the limit, such as within 20 remaining credits) to avoid being throttled.
/// - No head-of-line blocking: Because channels and credit limits are
///   independent per-view, a slow client that fails to acknowledge `EXITED`
///   events only blocks its own channel. Scenic can immediately start pushing
///   events to the newly hovered client on its own channel.
///
/// The position of a pointer event is defined in the context of a viewport,
/// situated in the view, identical to [`MouseSource`].
#[derive(Debug)]
pub enum MouseSourceV2Request {
    /// Acknowledges receipt of events up to `last_acknowledged_event_stamp`.
    ///
    /// This grants the server "credits" to send more events. All events sent
    /// with a `last_event_stamp` less than or equal to
    /// `last_acknowledged_event_stamp` are considered acknowledged.
    ///
    /// The server (Scenic) will throttle event delivery when unacknowledged
    /// events in flight reach `MOUSE_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a
    /// product-configured maximum). Clients should send acknowledgments
    /// periodically (e.g. before reaching the limit, such as within 20
    /// remaining credits) to avoid being throttled.
    ///
    /// `last_acknowledged_event_stamp` must be strictly increasing.
    /// Non-compliance results in channel closure.
    AcknowledgeEvents {
        last_acknowledged_event_stamp: u64,
        control_handle: MouseSourceV2ControlHandle,
    },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: MouseSourceV2ControlHandle,
        method_type: fidl::MethodType,
    },
}

impl MouseSourceV2Request {
    #[allow(irrefutable_let_patterns)]
    pub fn into_acknowledge_events(self) -> Option<(u64, MouseSourceV2ControlHandle)> {
        if let MouseSourceV2Request::AcknowledgeEvents {
            last_acknowledged_event_stamp,
            control_handle,
        } = self
        {
            Some((last_acknowledged_event_stamp, control_handle))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            MouseSourceV2Request::AcknowledgeEvents { .. } => "acknowledge_events",
            MouseSourceV2Request::_UnknownMethod {
                method_type: fidl::MethodType::OneWay, ..
            } => "unknown one-way method",
            MouseSourceV2Request::_UnknownMethod {
                method_type: fidl::MethodType::TwoWay, ..
            } => "unknown two-way method",
        }
    }
}

#[derive(Debug, Clone)]
pub struct MouseSourceV2ControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl MouseSourceV2ControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for MouseSourceV2ControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl MouseSourceV2ControlHandle {
    pub fn send_on_mouse_events(
        &self,
        mut events: Vec<MouseEvent>,
        mut last_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        self.inner.send::<MouseSourceV2OnMouseEventsRequest>(
            (events.as_mut(), last_event_stamp),
            0,
            0x61f8d843a513238d,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct TouchSourceMarker;

impl fidl::endpoints::ProtocolMarker for TouchSourceMarker {
    type Proxy = TouchSourceProxy;
    type RequestStream = TouchSourceRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = TouchSourceSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) TouchSource";
}

pub trait TouchSourceProxyInterface: Send + Sync {
    type WatchResponseFut: std::future::Future<Output = Result<Vec<TouchEvent>, fidl::Error>> + Send;
    fn r#watch(&self, responses: &[TouchResponse]) -> Self::WatchResponseFut;
    type UpdateResponseResponseFut: std::future::Future<Output = Result<(), fidl::Error>> + Send;
    fn r#update_response(
        &self,
        interaction: &TouchInteractionId,
        response: &TouchResponse,
    ) -> Self::UpdateResponseResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct TouchSourceSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for TouchSourceSynchronousProxy {
    type Proxy = TouchSourceProxy;
    type Protocol = TouchSourceMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl TouchSourceSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<TouchSourceEvent, fidl::Error> {
        TouchSourceEvent::decode(self.client.wait_for_event::<TouchSourceMarker>(deadline)?)
    }

    /// A method for a client to receive touch pointer events.
    ///
    /// This call is formulated as a "hanging get" pattern: the client asks for
    /// a set of recent events, and receives them via the callback. This
    /// pull-based approach ensures that clients consume events at their own
    /// pace; events don't clog up the channel in an unbounded manner.
    ///
    /// Flow control. The caller is allowed at most one in-flight |Watch| call
    /// at a time; it is a logical error to have concurrent calls to |Watch|.
    /// Non-compliance results in channel closure.
    ///
    /// Client pacing. The server will dispatch events to the caller on a FIFO,
    /// lossless, best-effort basis, but the caller must allocate enough time to
    /// keep up with new events. An unresponsive client may be categorized as
    /// "App Not Responding" and targeted for channel closure.
    ///
    /// Responses. The gesture disambiguation scheme relies on the server
    /// receiving a |TouchResponse| for each |TouchEvent|.|TouchPointerSample|;
    /// non-sample events should return an empty |TouchResponse| table to the
    /// server. Responses for *previous* events are fed to the server on the
    /// *next* call of |Watch| [1]. Each element in the |responses| vector is
    /// interpreted as the pairwise response to the event in the previous
    /// |events| vector; the vector lengths must match. Note that the client's
    /// contract to respond to events starts as soon as it registers its
    /// endpoint with scenic, NOT when it first calls `Watch()`.
    ///
    /// Initial response. The first call to |Watch| must be an empty vector.
    ///
    /// Event times. The timestamps on each event in the event vector are *not*
    /// guaranteed monotonic; touch events from different devices may be
    /// injected into Scenic at different times. Generally, events from a single
    /// device are expected to have monotonically increasing timestamps.
    ///
    /// View parameters. Occasionally, changes in view or viewport require
    /// notifying the client. If a |TouchEvent| carries |ViewParameters|, these
    /// parameters apply to successive |TouchPointerSample|s until the next
    /// |ViewParameters|.
    ///
    /// [1] The hanging get pattern enables straightforward API evolution, but
    /// unfortunately does not admit an idiomatic matching of response to event.
    pub fn r#watch(
        &self,
        mut responses: &[TouchResponse],
        ___deadline: zx::MonotonicInstant,
    ) -> Result<Vec<TouchEvent>, fidl::Error> {
        let _response = self
            .client
            .send_query::<TouchSourceWatchRequest, TouchSourceWatchResponse, TouchSourceMarker>(
                (responses,),
                0x38453127dd0fc7d,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.events)
    }

    /// The gesture protocol allows a client to enact a "hold" on an open
    /// interaction of touch events; it prevents resolution of interaction
    /// ownership, even after the interaction closes. This method updates the
    /// client's previous "hold" by replacing it with a response that allows
    /// ownership resolution to proceed.
    ///
    /// See |TouchInteractionId| for how a stream is structured into
    /// interactions.
    ///
    /// Flow control. The caller is allowed at most one |UpdateResponse| call
    /// per interaction, and it must be on a closed interaction. It is a logical
    /// error to call |UpdateResponse| when a normal response is possible with
    /// the |Watch| call.
    ///
    /// Validity. This TouchResponse must not be another "hold" response, and
    /// the overwritten response is expected to be a "hold" response.
    pub fn r#update_response(
        &self,
        mut interaction: &TouchInteractionId,
        mut response: &TouchResponse,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<(), fidl::Error> {
        let _response = self.client.send_query::<
            TouchSourceUpdateResponseRequest,
            fidl::encoding::EmptyPayload,
            TouchSourceMarker,
        >(
            (interaction, response,),
            0x6c746a313b39898a,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response)
    }
}

#[cfg(target_os = "fuchsia")]
impl From<TouchSourceSynchronousProxy> for zx::NullableHandle {
    fn from(value: TouchSourceSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for TouchSourceSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for TouchSourceSynchronousProxy {
    type Protocol = TouchSourceMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<TouchSourceMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct TouchSourceProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for TouchSourceProxy {
    type Protocol = TouchSourceMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl TouchSourceProxy {
    /// Create a new Proxy for fuchsia.ui.pointer/TouchSource.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <TouchSourceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> TouchSourceEventStream {
        TouchSourceEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// A method for a client to receive touch pointer events.
    ///
    /// This call is formulated as a "hanging get" pattern: the client asks for
    /// a set of recent events, and receives them via the callback. This
    /// pull-based approach ensures that clients consume events at their own
    /// pace; events don't clog up the channel in an unbounded manner.
    ///
    /// Flow control. The caller is allowed at most one in-flight |Watch| call
    /// at a time; it is a logical error to have concurrent calls to |Watch|.
    /// Non-compliance results in channel closure.
    ///
    /// Client pacing. The server will dispatch events to the caller on a FIFO,
    /// lossless, best-effort basis, but the caller must allocate enough time to
    /// keep up with new events. An unresponsive client may be categorized as
    /// "App Not Responding" and targeted for channel closure.
    ///
    /// Responses. The gesture disambiguation scheme relies on the server
    /// receiving a |TouchResponse| for each |TouchEvent|.|TouchPointerSample|;
    /// non-sample events should return an empty |TouchResponse| table to the
    /// server. Responses for *previous* events are fed to the server on the
    /// *next* call of |Watch| [1]. Each element in the |responses| vector is
    /// interpreted as the pairwise response to the event in the previous
    /// |events| vector; the vector lengths must match. Note that the client's
    /// contract to respond to events starts as soon as it registers its
    /// endpoint with scenic, NOT when it first calls `Watch()`.
    ///
    /// Initial response. The first call to |Watch| must be an empty vector.
    ///
    /// Event times. The timestamps on each event in the event vector are *not*
    /// guaranteed monotonic; touch events from different devices may be
    /// injected into Scenic at different times. Generally, events from a single
    /// device are expected to have monotonically increasing timestamps.
    ///
    /// View parameters. Occasionally, changes in view or viewport require
    /// notifying the client. If a |TouchEvent| carries |ViewParameters|, these
    /// parameters apply to successive |TouchPointerSample|s until the next
    /// |ViewParameters|.
    ///
    /// [1] The hanging get pattern enables straightforward API evolution, but
    /// unfortunately does not admit an idiomatic matching of response to event.
    pub fn r#watch(
        &self,
        mut responses: &[TouchResponse],
    ) -> fidl::client::QueryResponseFut<
        Vec<TouchEvent>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        TouchSourceProxyInterface::r#watch(self, responses)
    }

    /// The gesture protocol allows a client to enact a "hold" on an open
    /// interaction of touch events; it prevents resolution of interaction
    /// ownership, even after the interaction closes. This method updates the
    /// client's previous "hold" by replacing it with a response that allows
    /// ownership resolution to proceed.
    ///
    /// See |TouchInteractionId| for how a stream is structured into
    /// interactions.
    ///
    /// Flow control. The caller is allowed at most one |UpdateResponse| call
    /// per interaction, and it must be on a closed interaction. It is a logical
    /// error to call |UpdateResponse| when a normal response is possible with
    /// the |Watch| call.
    ///
    /// Validity. This TouchResponse must not be another "hold" response, and
    /// the overwritten response is expected to be a "hold" response.
    pub fn r#update_response(
        &self,
        mut interaction: &TouchInteractionId,
        mut response: &TouchResponse,
    ) -> fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect> {
        TouchSourceProxyInterface::r#update_response(self, interaction, response)
    }
}

impl TouchSourceProxyInterface for TouchSourceProxy {
    type WatchResponseFut = fidl::client::QueryResponseFut<
        Vec<TouchEvent>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#watch(&self, mut responses: &[TouchResponse]) -> Self::WatchResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<Vec<TouchEvent>, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                TouchSourceWatchResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x38453127dd0fc7d,
            >(_buf?)?;
            Ok(_response.events)
        }
        self.client.send_query_and_decode::<TouchSourceWatchRequest, Vec<TouchEvent>>(
            (responses,),
            0x38453127dd0fc7d,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type UpdateResponseResponseFut =
        fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#update_response(
        &self,
        mut interaction: &TouchInteractionId,
        mut response: &TouchResponse,
    ) -> Self::UpdateResponseResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<(), fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::EmptyPayload,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x6c746a313b39898a,
            >(_buf?)?;
            Ok(_response)
        }
        self.client.send_query_and_decode::<TouchSourceUpdateResponseRequest, ()>(
            (interaction, response),
            0x6c746a313b39898a,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct TouchSourceEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for TouchSourceEventStream {}

impl futures::stream::FusedStream for TouchSourceEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for TouchSourceEventStream {
    type Item = Result<TouchSourceEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(TouchSourceEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum TouchSourceEvent {}

impl TouchSourceEvent {
    /// Decodes a message buffer as a [`TouchSourceEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<TouchSourceEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <TouchSourceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.ui.pointer/TouchSource.
pub struct TouchSourceRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for TouchSourceRequestStream {}

impl futures::stream::FusedStream for TouchSourceRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for TouchSourceRequestStream {
    type Protocol = TouchSourceMarker;
    type ControlHandle = TouchSourceControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        TouchSourceControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for TouchSourceRequestStream {
    type Item = Result<TouchSourceRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled TouchSourceRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x38453127dd0fc7d => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            TouchSourceWatchRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<TouchSourceWatchRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = TouchSourceControlHandle { inner: this.inner.clone() };
                        Ok(TouchSourceRequest::Watch {
                            responses: req.responses,

                            responder: TouchSourceWatchResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x6c746a313b39898a => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            TouchSourceUpdateResponseRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<TouchSourceUpdateResponseRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = TouchSourceControlHandle { inner: this.inner.clone() };
                        Ok(TouchSourceRequest::UpdateResponse {
                            interaction: req.interaction,
                            response: req.response,

                            responder: TouchSourceUpdateResponseResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <TouchSourceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A method for a client to receive touch events and respond in a global
/// gesture disambiguation protocol.
///
/// The position of a touch event is defined in the context of a viewport,
/// situated in the view. The dimensions of the view and viewport, and their
/// spatial relationship (defined with a transform matrix), are supplied
/// synchronously in a |ViewParameter| table. A view may retrieve a pointer's
/// position in its local coordinate system by applying the viewport-to-view
/// transform matrix.
///
/// The viewport is embedded in an independent and stable coordinate system,
/// suitable for interpreting touch events in a scale-independent manner; a
/// swipe will be observed at a constant scale, even under effects such as
/// magnification or panning. However, other effects, such as enlargening the
/// view's clip bounds, may trigger a change in the viewport extents.
#[derive(Debug)]
pub enum TouchSourceRequest {
    /// A method for a client to receive touch pointer events.
    ///
    /// This call is formulated as a "hanging get" pattern: the client asks for
    /// a set of recent events, and receives them via the callback. This
    /// pull-based approach ensures that clients consume events at their own
    /// pace; events don't clog up the channel in an unbounded manner.
    ///
    /// Flow control. The caller is allowed at most one in-flight |Watch| call
    /// at a time; it is a logical error to have concurrent calls to |Watch|.
    /// Non-compliance results in channel closure.
    ///
    /// Client pacing. The server will dispatch events to the caller on a FIFO,
    /// lossless, best-effort basis, but the caller must allocate enough time to
    /// keep up with new events. An unresponsive client may be categorized as
    /// "App Not Responding" and targeted for channel closure.
    ///
    /// Responses. The gesture disambiguation scheme relies on the server
    /// receiving a |TouchResponse| for each |TouchEvent|.|TouchPointerSample|;
    /// non-sample events should return an empty |TouchResponse| table to the
    /// server. Responses for *previous* events are fed to the server on the
    /// *next* call of |Watch| [1]. Each element in the |responses| vector is
    /// interpreted as the pairwise response to the event in the previous
    /// |events| vector; the vector lengths must match. Note that the client's
    /// contract to respond to events starts as soon as it registers its
    /// endpoint with scenic, NOT when it first calls `Watch()`.
    ///
    /// Initial response. The first call to |Watch| must be an empty vector.
    ///
    /// Event times. The timestamps on each event in the event vector are *not*
    /// guaranteed monotonic; touch events from different devices may be
    /// injected into Scenic at different times. Generally, events from a single
    /// device are expected to have monotonically increasing timestamps.
    ///
    /// View parameters. Occasionally, changes in view or viewport require
    /// notifying the client. If a |TouchEvent| carries |ViewParameters|, these
    /// parameters apply to successive |TouchPointerSample|s until the next
    /// |ViewParameters|.
    ///
    /// [1] The hanging get pattern enables straightforward API evolution, but
    /// unfortunately does not admit an idiomatic matching of response to event.
    Watch { responses: Vec<TouchResponse>, responder: TouchSourceWatchResponder },
    /// The gesture protocol allows a client to enact a "hold" on an open
    /// interaction of touch events; it prevents resolution of interaction
    /// ownership, even after the interaction closes. This method updates the
    /// client's previous "hold" by replacing it with a response that allows
    /// ownership resolution to proceed.
    ///
    /// See |TouchInteractionId| for how a stream is structured into
    /// interactions.
    ///
    /// Flow control. The caller is allowed at most one |UpdateResponse| call
    /// per interaction, and it must be on a closed interaction. It is a logical
    /// error to call |UpdateResponse| when a normal response is possible with
    /// the |Watch| call.
    ///
    /// Validity. This TouchResponse must not be another "hold" response, and
    /// the overwritten response is expected to be a "hold" response.
    UpdateResponse {
        interaction: TouchInteractionId,
        response: TouchResponse,
        responder: TouchSourceUpdateResponseResponder,
    },
}

impl TouchSourceRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_watch(self) -> Option<(Vec<TouchResponse>, TouchSourceWatchResponder)> {
        if let TouchSourceRequest::Watch { responses, responder } = self {
            Some((responses, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_update_response(
        self,
    ) -> Option<(TouchInteractionId, TouchResponse, TouchSourceUpdateResponseResponder)> {
        if let TouchSourceRequest::UpdateResponse { interaction, response, responder } = self {
            Some((interaction, response, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            TouchSourceRequest::Watch { .. } => "watch",
            TouchSourceRequest::UpdateResponse { .. } => "update_response",
        }
    }
}

#[derive(Debug, Clone)]
pub struct TouchSourceControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl TouchSourceControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for TouchSourceControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl TouchSourceControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct TouchSourceWatchResponder {
    control_handle: std::mem::ManuallyDrop<TouchSourceControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`TouchSourceControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for TouchSourceWatchResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for TouchSourceWatchResponder {
    type ControlHandle = TouchSourceControlHandle;

    fn control_handle(&self) -> &TouchSourceControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl TouchSourceWatchResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut events: Vec<TouchEvent>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(events);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut events: Vec<TouchEvent>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(events);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut events: Vec<TouchEvent>) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<TouchSourceWatchResponse>(
            (events.as_mut(),),
            self.tx_id,
            0x38453127dd0fc7d,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct TouchSourceUpdateResponseResponder {
    control_handle: std::mem::ManuallyDrop<TouchSourceControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`TouchSourceControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for TouchSourceUpdateResponseResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for TouchSourceUpdateResponseResponder {
    type ControlHandle = TouchSourceControlHandle;

    fn control_handle(&self) -> &TouchSourceControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl TouchSourceUpdateResponseResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self) -> Result<(), fidl::Error> {
        let _result = self.send_raw();
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self) -> Result<(), fidl::Error> {
        let _result = self.send_raw();
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::EmptyPayload>(
            (),
            self.tx_id,
            0x6c746a313b39898a,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct TouchSourceV2Marker;

impl fidl::endpoints::ProtocolMarker for TouchSourceV2Marker {
    type Proxy = TouchSourceV2Proxy;
    type RequestStream = TouchSourceV2RequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = TouchSourceV2SynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) TouchSourceV2";
}

pub trait TouchSourceV2ProxyInterface: Send + Sync {
    fn r#acknowledge_events(&self, last_acknowledged_event_stamp: u64) -> Result<(), fidl::Error>;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct TouchSourceV2SynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for TouchSourceV2SynchronousProxy {
    type Proxy = TouchSourceV2Proxy;
    type Protocol = TouchSourceV2Marker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl TouchSourceV2SynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<TouchSourceV2Event, fidl::Error> {
        TouchSourceV2Event::decode(self.client.wait_for_event::<TouchSourceV2Marker>(deadline)?)
    }

    /// Acknowledges receipt of events up to `last_acknowledged_event_stamp`.
    ///
    /// This grants the server "credits" to send more events. All events sent
    /// with a `last_event_stamp` less than or equal to
    /// `last_acknowledged_event_stamp` are considered acknowledged.
    ///
    /// The server (Scenic) will throttle event delivery when unacknowledged
    /// events in flight reach `TOUCH_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a
    /// product-configured maximum). Clients should send acknowledgments
    /// periodically (e.g. before reaching the limit, such as within 20
    /// remaining credits) to avoid being throttled.
    ///
    /// `last_acknowledged_event_stamp` must be strictly increasing.
    /// Non-compliance results in channel closure.
    pub fn r#acknowledge_events(
        &self,
        mut last_acknowledged_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        self.client.send::<TouchSourceV2AcknowledgeEventsRequest>(
            (last_acknowledged_event_stamp,),
            0x262966714efb0712,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[cfg(target_os = "fuchsia")]
impl From<TouchSourceV2SynchronousProxy> for zx::NullableHandle {
    fn from(value: TouchSourceV2SynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for TouchSourceV2SynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for TouchSourceV2SynchronousProxy {
    type Protocol = TouchSourceV2Marker;

    fn from_client(value: fidl::endpoints::ClientEnd<TouchSourceV2Marker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct TouchSourceV2Proxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for TouchSourceV2Proxy {
    type Protocol = TouchSourceV2Marker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl TouchSourceV2Proxy {
    /// Create a new Proxy for fuchsia.ui.pointer/TouchSourceV2.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <TouchSourceV2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> TouchSourceV2EventStream {
        TouchSourceV2EventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Acknowledges receipt of events up to `last_acknowledged_event_stamp`.
    ///
    /// This grants the server "credits" to send more events. All events sent
    /// with a `last_event_stamp` less than or equal to
    /// `last_acknowledged_event_stamp` are considered acknowledged.
    ///
    /// The server (Scenic) will throttle event delivery when unacknowledged
    /// events in flight reach `TOUCH_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a
    /// product-configured maximum). Clients should send acknowledgments
    /// periodically (e.g. before reaching the limit, such as within 20
    /// remaining credits) to avoid being throttled.
    ///
    /// `last_acknowledged_event_stamp` must be strictly increasing.
    /// Non-compliance results in channel closure.
    pub fn r#acknowledge_events(
        &self,
        mut last_acknowledged_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        TouchSourceV2ProxyInterface::r#acknowledge_events(self, last_acknowledged_event_stamp)
    }
}

impl TouchSourceV2ProxyInterface for TouchSourceV2Proxy {
    fn r#acknowledge_events(
        &self,
        mut last_acknowledged_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        self.client.send::<TouchSourceV2AcknowledgeEventsRequest>(
            (last_acknowledged_event_stamp,),
            0x262966714efb0712,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

pub struct TouchSourceV2EventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for TouchSourceV2EventStream {}

impl futures::stream::FusedStream for TouchSourceV2EventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for TouchSourceV2EventStream {
    type Item = Result<TouchSourceV2Event, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(TouchSourceV2Event::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum TouchSourceV2Event {
    OnTouchEvents {
        events: Vec<TouchEvent>,
        last_event_stamp: u64,
    },
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl TouchSourceV2Event {
    #[allow(irrefutable_let_patterns)]
    pub fn into_on_touch_events(self) -> Option<(Vec<TouchEvent>, u64)> {
        if let TouchSourceV2Event::OnTouchEvents { events, last_event_stamp } = self {
            Some((events, last_event_stamp))
        } else {
            None
        }
    }

    /// Decodes a message buffer as a [`TouchSourceV2Event`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<TouchSourceV2Event, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            0x28aa3c07e625b3f7 => {
                let mut out = fidl::new_empty!(
                    TouchSourceV2OnTouchEventsRequest,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                );
                fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<TouchSourceV2OnTouchEventsRequest>(&tx_header, _body_bytes, _handles, &mut out)?;
                Ok((TouchSourceV2Event::OnTouchEvents {
                    events: out.events,
                    last_event_stamp: out.last_event_stamp,
                }))
            }
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(TouchSourceV2Event::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <TouchSourceV2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.ui.pointer/TouchSourceV2.
pub struct TouchSourceV2RequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for TouchSourceV2RequestStream {}

impl futures::stream::FusedStream for TouchSourceV2RequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for TouchSourceV2RequestStream {
    type Protocol = TouchSourceV2Marker;
    type ControlHandle = TouchSourceV2ControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        TouchSourceV2ControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for TouchSourceV2RequestStream {
    type Item = Result<TouchSourceV2Request, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled TouchSourceV2RequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x262966714efb0712 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            TouchSourceV2AcknowledgeEventsRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<TouchSourceV2AcknowledgeEventsRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle =
                            TouchSourceV2ControlHandle { inner: this.inner.clone() };
                        Ok(TouchSourceV2Request::AcknowledgeEvents {
                            last_acknowledged_event_stamp: req.last_acknowledged_event_stamp,

                            control_handle,
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(TouchSourceV2Request::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: TouchSourceV2ControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(TouchSourceV2Request::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: TouchSourceV2ControlHandle {
                                inner: this.inner.clone(),
                            },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <TouchSourceV2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A push-based reader protocol for a client to receive touch events.
///
/// Does not support cooperative gesture disambiguation (always-consume model).
/// If Scenic has a mix of V1 and V2 clients contesting the same touch
/// interaction in the view tree, Scenic's gesture arena will implicitly treat
/// the V2 client as if it immediately responded `YES` (claim ownership) to all
/// pointer samples. Gesture ownership is then resolved using standard priority
/// rules against other V1 clients' explicit responses (like `YES`, `MAYBE`, or
/// `HOLD`).
///
/// Clients requiring cooperative gesture disambiguation or augmentation (such
/// as the accessibility subsystem using `LocalHit`) must continue using the
/// pull-based [`TouchSource`] protocol instead.
///
/// Flow control and acknowledgment rules:
/// - The server will not push more than
///   `TOUCH_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a product-configured
///   maximum) events without receiving an acknowledgment from the client.
///   The server (Scenic) will throttle event delivery when unacknowledged
///   events in flight reach this limit.
/// - Clients should send acknowledgments periodically (e.g. before reaching
///   the limit, such as within 20 remaining credits) to avoid being throttled.
/// - No head-of-line blocking: Because channels and credit limits are
///   independent per-view, a slow client that fails to acknowledge terminal
///   events only blocks its own channel. Scenic can immediately start pushing
///   events to other views on their own channels.
///
/// Like [`TouchSource`], Scenic only dispatches touch events to the
/// `TouchSourceV2` channel if the touch coordinate successfully intersects one
/// of the view's active hit regions (determined via Scenic's global hit
/// testing). If the hit test fails or targets a different view, no touch events
/// are routed to this client's `TouchSourceV2` channel, preserving the security
/// containment boundaries of the Fuchsia UI system.
///
/// The position of a touch event is defined in the context of a viewport,
/// situated in the view, identical to [`TouchSource`].
#[derive(Debug)]
pub enum TouchSourceV2Request {
    /// Acknowledges receipt of events up to `last_acknowledged_event_stamp`.
    ///
    /// This grants the server "credits" to send more events. All events sent
    /// with a `last_event_stamp` less than or equal to
    /// `last_acknowledged_event_stamp` are considered acknowledged.
    ///
    /// The server (Scenic) will throttle event delivery when unacknowledged
    /// events in flight reach `TOUCH_SOURCE_V2_MAX_UNACKNOWLEDGED_EVENTS` (or a
    /// product-configured maximum). Clients should send acknowledgments
    /// periodically (e.g. before reaching the limit, such as within 20
    /// remaining credits) to avoid being throttled.
    ///
    /// `last_acknowledged_event_stamp` must be strictly increasing.
    /// Non-compliance results in channel closure.
    AcknowledgeEvents {
        last_acknowledged_event_stamp: u64,
        control_handle: TouchSourceV2ControlHandle,
    },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: TouchSourceV2ControlHandle,
        method_type: fidl::MethodType,
    },
}

impl TouchSourceV2Request {
    #[allow(irrefutable_let_patterns)]
    pub fn into_acknowledge_events(self) -> Option<(u64, TouchSourceV2ControlHandle)> {
        if let TouchSourceV2Request::AcknowledgeEvents {
            last_acknowledged_event_stamp,
            control_handle,
        } = self
        {
            Some((last_acknowledged_event_stamp, control_handle))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            TouchSourceV2Request::AcknowledgeEvents { .. } => "acknowledge_events",
            TouchSourceV2Request::_UnknownMethod {
                method_type: fidl::MethodType::OneWay, ..
            } => "unknown one-way method",
            TouchSourceV2Request::_UnknownMethod {
                method_type: fidl::MethodType::TwoWay, ..
            } => "unknown two-way method",
        }
    }
}

#[derive(Debug, Clone)]
pub struct TouchSourceV2ControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl TouchSourceV2ControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for TouchSourceV2ControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl TouchSourceV2ControlHandle {
    pub fn send_on_touch_events(
        &self,
        mut events: Vec<TouchEvent>,
        mut last_event_stamp: u64,
    ) -> Result<(), fidl::Error> {
        self.inner.send::<TouchSourceV2OnTouchEventsRequest>(
            (events.as_mut(), last_event_stamp),
            0,
            0x28aa3c07e625b3f7,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;

    impl fidl::encoding::ResourceTypeMarker for MouseSourceV2OnMouseEventsRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MouseSourceV2OnMouseEventsRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            MouseSourceV2OnMouseEventsRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut MouseSourceV2OnMouseEventsRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MouseSourceV2OnMouseEventsRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MouseSourceV2OnMouseEventsRequest, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl::encoding::Vector<MouseEvent, 128> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.events),
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.last_event_stamp),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::Vector<MouseEvent, 128>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        T1: fidl::encoding::Encode<u64, fidl::encoding::DefaultFuchsiaResourceDialect>,
    >
        fidl::encoding::Encode<
            MouseSourceV2OnMouseEventsRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MouseSourceV2OnMouseEventsRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for MouseSourceV2OnMouseEventsRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                events: fidl::new_empty!(fidl::encoding::Vector<MouseEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect),
                last_event_stamp: fidl::new_empty!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::Vector<MouseEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.events, decoder, offset + 0, _depth)?;
            fidl::decode!(
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.last_event_stamp,
                decoder,
                offset + 16,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for MouseSourceWatchResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MouseSourceWatchResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            MouseSourceWatchResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut MouseSourceWatchResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MouseSourceWatchResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<MouseSourceWatchResponse, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl::encoding::Vector<MouseEvent, 128> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.events),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::Vector<MouseEvent, 128>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    >
        fidl::encoding::Encode<
            MouseSourceWatchResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MouseSourceWatchResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for MouseSourceWatchResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                events: fidl::new_empty!(fidl::encoding::Vector<MouseEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::Vector<MouseEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.events, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for TouchSourceV2OnTouchEventsRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for TouchSourceV2OnTouchEventsRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            TouchSourceV2OnTouchEventsRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut TouchSourceV2OnTouchEventsRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TouchSourceV2OnTouchEventsRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<TouchSourceV2OnTouchEventsRequest, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl::encoding::Vector<TouchEvent, 128> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.events),
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.last_event_stamp),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::Vector<TouchEvent, 128>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        T1: fidl::encoding::Encode<u64, fidl::encoding::DefaultFuchsiaResourceDialect>,
    >
        fidl::encoding::Encode<
            TouchSourceV2OnTouchEventsRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TouchSourceV2OnTouchEventsRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for TouchSourceV2OnTouchEventsRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                events: fidl::new_empty!(fidl::encoding::Vector<TouchEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect),
                last_event_stamp: fidl::new_empty!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::Vector<TouchEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.events, decoder, offset + 0, _depth)?;
            fidl::decode!(
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.last_event_stamp,
                decoder,
                offset + 16,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for TouchSourceWatchResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for TouchSourceWatchResponse {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            TouchSourceWatchResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut TouchSourceWatchResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TouchSourceWatchResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<TouchSourceWatchResponse, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl::encoding::Vector<TouchEvent, 128> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.events),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::Vector<TouchEvent, 128>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    >
        fidl::encoding::Encode<
            TouchSourceWatchResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TouchSourceWatchResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for TouchSourceWatchResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                events: fidl::new_empty!(fidl::encoding::Vector<TouchEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(fidl::encoding::Vector<TouchEvent, 128>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.events, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl MouseEvent {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.wake_lease {
                return 7;
            }
            if let Some(_) = self.trace_flow_id {
                return 6;
            }
            if let Some(_) = self.stream_info {
                return 5;
            }
            if let Some(_) = self.pointer_sample {
                return 4;
            }
            if let Some(_) = self.device_info {
                return 3;
            }
            if let Some(_) = self.view_parameters {
                return 2;
            }
            if let Some(_) = self.timestamp {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for MouseEvent {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for MouseEvent {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl fidl::encoding::Encode<MouseEvent, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut MouseEvent
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<MouseEvent>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                i64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.timestamp.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                ViewParameters,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.view_parameters
                    .as_ref()
                    .map(<ViewParameters as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                MouseDeviceInfo,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.device_info
                    .as_ref()
                    .map(<MouseDeviceInfo as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (4 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                MousePointerSample,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.pointer_sample
                    .as_ref()
                    .map(<MousePointerSample as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 5 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (5 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                MouseEventStreamInfo,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.stream_info
                    .as_ref()
                    .map(<MouseEventStreamInfo as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 6 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (6 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.trace_flow_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 7 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (7 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                fidl::encoding::HandleType<
                    fidl::EventPair,
                    { fidl::ObjectType::EVENTPAIR.into_raw() },
                    2147483648,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.wake_lease.as_mut().map(
                    <fidl::encoding::HandleType<
                        fidl::EventPair,
                        { fidl::ObjectType::EVENTPAIR.into_raw() },
                        2147483648,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect> for MouseEvent {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.timestamp.get_or_insert_with(|| {
                    fidl::new_empty!(i64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    i64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <ViewParameters as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.view_parameters.get_or_insert_with(|| {
                    fidl::new_empty!(ViewParameters, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    ViewParameters,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <MouseDeviceInfo as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.device_info.get_or_insert_with(|| {
                    fidl::new_empty!(MouseDeviceInfo, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    MouseDeviceInfo,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 4 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <MousePointerSample as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.pointer_sample.get_or_insert_with(|| {
                    fidl::new_empty!(
                        MousePointerSample,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    MousePointerSample,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 5 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <MouseEventStreamInfo as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.stream_info.get_or_insert_with(|| {
                    fidl::new_empty!(
                        MouseEventStreamInfo,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    MouseEventStreamInfo,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 6 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.trace_flow_id.get_or_insert_with(|| {
                    fidl::new_empty!(u64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 7 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::HandleType<
                    fidl::EventPair,
                    { fidl::ObjectType::EVENTPAIR.into_raw() },
                    2147483648,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.wake_lease.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::HandleType<fidl::EventPair, { fidl::ObjectType::EVENTPAIR.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect));
                fidl::decode!(fidl::encoding::HandleType<fidl::EventPair, { fidl::ObjectType::EVENTPAIR.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl TouchEvent {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.wake_lease {
                return 7;
            }
            if let Some(_) = self.trace_flow_id {
                return 6;
            }
            if let Some(_) = self.interaction_result {
                return 5;
            }
            if let Some(_) = self.pointer_sample {
                return 4;
            }
            if let Some(_) = self.device_info {
                return 3;
            }
            if let Some(_) = self.view_parameters {
                return 2;
            }
            if let Some(_) = self.timestamp {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for TouchEvent {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for TouchEvent {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl fidl::encoding::Encode<TouchEvent, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut TouchEvent
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TouchEvent>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                i64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.timestamp.as_ref().map(<i64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                ViewParameters,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.view_parameters
                    .as_ref()
                    .map(<ViewParameters as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                TouchDeviceInfo,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.device_info
                    .as_ref()
                    .map(<TouchDeviceInfo as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (4 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                TouchPointerSample,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.pointer_sample
                    .as_ref()
                    .map(<TouchPointerSample as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 5 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (5 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                TouchInteractionResult,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.interaction_result
                    .as_ref()
                    .map(<TouchInteractionResult as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 6 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (6 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.trace_flow_id.as_ref().map(<u64 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 7 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (7 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                fidl::encoding::HandleType<
                    fidl::EventPair,
                    { fidl::ObjectType::EVENTPAIR.into_raw() },
                    2147483648,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.wake_lease.as_mut().map(
                    <fidl::encoding::HandleType<
                        fidl::EventPair,
                        { fidl::ObjectType::EVENTPAIR.into_raw() },
                        2147483648,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect> for TouchEvent {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.timestamp.get_or_insert_with(|| {
                    fidl::new_empty!(i64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    i64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <ViewParameters as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.view_parameters.get_or_insert_with(|| {
                    fidl::new_empty!(ViewParameters, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    ViewParameters,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <TouchDeviceInfo as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.device_info.get_or_insert_with(|| {
                    fidl::new_empty!(TouchDeviceInfo, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    TouchDeviceInfo,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 4 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <TouchPointerSample as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.pointer_sample.get_or_insert_with(|| {
                    fidl::new_empty!(
                        TouchPointerSample,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    TouchPointerSample,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 5 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <TouchInteractionResult as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.interaction_result.get_or_insert_with(|| {
                    fidl::new_empty!(
                        TouchInteractionResult,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    TouchInteractionResult,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 6 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.trace_flow_id.get_or_insert_with(|| {
                    fidl::new_empty!(u64, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 7 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::HandleType<
                    fidl::EventPair,
                    { fidl::ObjectType::EVENTPAIR.into_raw() },
                    2147483648,
                > as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context
                );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                self.wake_lease.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::HandleType<fidl::EventPair, { fidl::ObjectType::EVENTPAIR.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect));
                fidl::decode!(fidl::encoding::HandleType<fidl::EventPair, { fidl::ObjectType::EVENTPAIR.into_raw() }, 2147483648>, fidl::encoding::DefaultFuchsiaResourceDialect, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }
}