Struct ExtensionRegistry 

pub struct ExtensionRegistry { /* private fields */ }

Registry of active extensions for an app instance.

Built from the app’s manifest permissions and stored on the SPA tab. The registry owns the extension objects and provides the glue between the native WKScriptMessageHandler callbacks and each extension’s handler.

Implementations

impl ExtensionRegistry

pub fn new() -> Self

pub fn register(&mut self, ext: Box<dyn HostExtension>)

Register an extension.

pub fn extensions(&self) -> &[Box<dyn HostExtension>]

Get all registered extensions.

pub fn combined_inject_script(&self) -> String

Returns the concatenated JS injection scripts for all registered extensions.

Inject this string into the WebView after HOST_API_BRIDGE_SCRIPT so that window.host.ext is populated before the SPA’s own scripts run.

pub fn channels(&self) -> Vec<&str>

Returns all channel names that need WKScriptMessageHandler registration.

pub fn dispatch( &self, channel: &str, method: &str, params: &str, ) -> Option<String>

Find extensions by channel name and dispatch a message to the first one that claims the method.

Returns the serialized JSON result, or None for fire-and-forget messages and unknown channels.

pub fn drain_events(&self) -> Vec<HostPushEvent>

Drain queued push events from all registered extensions.

Trait Implementations

impl Default for ExtensionRegistry

fn default() -> Self

Returns the “default value” for a type.