Struct KeyboardBinding

pub struct KeyboardBinding { /* private fields */ }

A KeyboardBinding represents a connection to a keyboard input device.

The KeyboardBinding parses and exposes keyboard device descriptor properties (e.g., the available keyboard keys) for the device it is associated with. It also parses InputReports from the device, and sends them to the device binding owner over event_sender.

Implementations

impl KeyboardBinding

pub async fn new( device_proxy: InputDeviceProxy, device_id: u32, input_event_sender: UnboundedSender<InputEvent>, device_node: Node, metrics_logger: MetricsLogger, ) -> Result<Self, Error>

Creates a new InputDeviceBinding from the device_proxy.

The binding will start listening for input reports immediately and send new InputEvents to the device binding owner over input_event_sender.

Parameters

• device_proxy: The proxy to bind the new InputDeviceBinding to.
• device_id: The unique identifier of this device.
• input_event_sender: The channel to send new InputEvents to.
• device_node: The inspect node for this device binding
• metrics_logger: The metrics logger.

Errors

If there was an error binding to the proxy.

pub fn to_modifiers(keys: &[&Key]) -> Option<Modifiers>

Converts a vector of keyboard keys to the appropriate fidl_ui_input3::Modifiers bitflags.

For example, if keys contains Key::CapsLock, the bitflags will contain the corresponding flags for CapsLock.

Parameters

• keys: The keys to check for modifiers.

Returns

Returns None if there are no modifier keys present.

Trait Implementations

impl InputDeviceBinding for KeyboardBinding

fn input_event_sender(&self) -> UnboundedSender<InputEvent>

Returns the input event stream’s sender.

fn get_device_descriptor(&self) -> InputDeviceDescriptor

Returns information about the input device.