Struct TouchInjectorHandler

pub struct TouchInjectorHandler {
    pub inspect_status: InputHandlerStatus,
    /* private fields */
}

An input handler that parses touch events and forwards them to Scenic through the fidl_fuchsia_pointerinjector protocols.

Fields

inspect_status: InputHandlerStatus

The inventory of this handler’s Inspect status.

Implementations

impl TouchInjectorHandler

pub async fn new( display_size: Size, input_handlers_node: &Node, metrics_logger: MetricsLogger, ) -> Result<Rc<Self>, Error>

Creates a new touch handler that holds touch pointer injectors. The caller is expected to spawn a task to continually watch for updates to the viewport. Example: let handler = TouchInjectorHandler::new(display_size).await?; fasync::Task::local(handler.clone().watch_viewport()).detach();

Parameters

• display_size: The size of the associated touch display.

Errors

If unable to connect to pointerinjector protocols.

pub async fn new_with_config_proxy( configuration_proxy: SetupProxy, display_size: Size, input_handlers_node: &Node, metrics_logger: MetricsLogger, ) -> Result<Rc<Self>, Error>

Creates a new touch handler that holds touch pointer injectors. The caller is expected to spawn a task to continually watch for updates to the viewport. Example: let handler = TouchInjectorHandler::new_with_config_proxy(config_proxy, display_size).await?; fasync::Task::local(handler.clone().watch_viewport()).detach();

Parameters

• configuration_proxy: A proxy used to get configuration details for pointer injection.
• display_size: The size of the associated touch display.

Errors

If unable to get injection view refs from configuration_proxy. If unable to connect to pointerinjector Registry protocol.

pub async fn watch_viewport(self: Rc<Self>)

Watches for viewport updates from the scene manager.

Trait Implementations

impl UnhandledInputHandler for TouchInjectorHandler

fn handle_unhandled_input_event<'async_trait>( self: Rc<Self>, unhandled_input_event: UnhandledInputEvent, ) -> Pin<Box<dyn Future<Output = Vec<InputEvent>> + 'async_trait>>

where Self: 'async_trait,

Returns a vector of InputEvents to propagate to the next InputHandler.

fn set_handler_healthy(self: Rc<Self>)

fn set_handler_unhealthy(self: Rc<Self>, msg: &str)