Struct ContextEventManager 

pub struct ContextEventManager { /* private fields */ }

Context event manager that handles all context-level events.

Implementations

impl ContextEventManager

pub fn new() -> Self

Create a new context event manager.

pub async fn on_page<F, Fut>(&self, handler: F) -> HandlerId

where F: Fn(Page) -> Fut + Send + Sync + 'static, Fut: Future<Output = ()> + Send + 'static,

Register a handler for new page events.

The handler will be called whenever a new page is created in the context. Returns a handler ID that can be used to remove the handler.

pub async fn off_page(&self, id: HandlerId) -> bool

Remove a page event handler by its ID.

Returns true if a handler was removed.

pub async fn emit_page(&self, page: Page)

Emit a page event to all registered handlers.

pub async fn on_page_activated<F, Fut>(&self, handler: F) -> HandlerId

where F: Fn(Page) -> Fut + Send + Sync + 'static, Fut: Future<Output = ()> + Send + 'static,

Register a handler for page activated events.

The handler will be called when a page becomes the active/foreground tab, including when the user clicks on a tab in the browser UI. Returns a handler ID that can be used to remove the handler.

pub async fn off_page_activated(&self, id: HandlerId) -> bool

Remove a page activated event handler by its ID.

Returns true if a handler was removed.

pub async fn emit_page_activated(&self, page: Page)

Emit a page activated event to all registered handlers.

pub async fn on_close<F, Fut>(&self, handler: F) -> HandlerId

where F: Fn() -> Fut + Send + Sync + 'static, Fut: Future<Output = ()> + Send + 'static,

Register a handler for context close events.

The handler will be called when the context is about to close. Returns a handler ID that can be used to remove the handler.

pub async fn off_close(&self, id: HandlerId) -> bool

Remove a close event handler by its ID.

Returns true if a handler was removed.

pub async fn emit_close(&self)

Emit a close event to all registered handlers.

pub async fn clear(&self)

Clear all event handlers.

Trait Implementations

impl Default for ContextEventManager

fn default() -> ContextEventManager

Returns the “default value” for a type.