Struct ParentViewportWatcherProxy

pub struct ParentViewportWatcherProxy { /* private fields */ }

Implementations

impl ParentViewportWatcherProxy

pub fn new(channel: AsyncChannel) -> Self

Create a new Proxy for fuchsia.ui.composition/ParentViewportWatcher.

pub fn take_event_stream(&self) -> ParentViewportWatcherEventStream

Get a Stream of events from the remote end of the protocol.

Panics

Panics if the event stream was already taken.

pub fn get_layout( &self, ) -> QueryResponseFut<LayoutInfo, DefaultFuchsiaResourceDialect>

A hanging get for receiving layout information. Clients may receive layout information before the ParentViewportWatcher operation has been presented. This allows children to layout their content before their first call to [Present]. In transition cases where two ParentViewportWatcher channels exist at the same time, both protocol instances will be receiving different layout information.

This hanging get will only fire when the LayoutInfo is different than the previously returned LayoutInfo. Note that, since LayoutInfo is a table, only some fields may have changed.

It is invalid to call GetLayout while a previous call is still pending. Doing so will cause both this channel and the Flatland channel that handed out ParentViewportWatcher to be closed.

pub fn get_status( &self, ) -> QueryResponseFut<ParentViewportStatus, DefaultFuchsiaResourceDialect>

A hanging get for receiving the status of the parent Viewport. This provides global connectivity information to the child.

This hanging get will only fire when the ParentViewportStatus is different than the previously returned ParentViewportStatus.

It is invalid to call GetStatus while a previous call is still pending. Doing so will cause both this channel and the Flatland channel that handed out ParentViewportWatcher to be closed.

Trait Implementations

impl Clone for ParentViewportWatcherProxy

fn clone(&self) -> ParentViewportWatcherProxy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ParentViewportWatcherProxy

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

Formats the value using the given formatter.

impl ParentViewportWatcherProxyInterface for ParentViewportWatcherProxy

type GetLayoutResponseFut = QueryResponseFut<LayoutInfo>

type GetStatusResponseFut = QueryResponseFut<ParentViewportStatus>

fn get_layout(&self) -> Self::GetLayoutResponseFut

fn get_status(&self) -> Self::GetStatusResponseFut

impl Proxy for ParentViewportWatcherProxy

type Protocol = ParentViewportWatcherMarker

The protocol which this Proxy controls.

fn from_channel(inner: AsyncChannel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Result<AsyncChannel, Self>

Attempt to convert the proxy back into a channel.

fn as_channel(&self) -> &AsyncChannel

Get a reference to the proxy’s underlying channel.

fn into_client_end(self) -> Result<ClientEnd<Self::Protocol>, Self>

Attempt to convert the proxy back into a client end.

fn is_closed(&self) -> bool

Returns true if the proxy has received the PEER_CLOSED signal.

fn on_closed(&self) -> OnSignals<'_, Unowned<'_, Handle>>

Returns a future that completes when the proxy receives the PEER_CLOSED signal.