Struct BindingManager 

pub struct BindingManager { /* private fields */ }

Manager for exposed function bindings on a page.

Implementations

impl BindingManager

pub fn new(connection: Arc<CdpConnection>, session_id: String) -> Self

Create a new binding manager for a page.

pub async fn expose_function<F, Fut>( &self, name: &str, callback: F, ) -> Result<(), PageError>

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

Expose a function to JavaScript.

The function will be available as window.<name>() in JavaScript. Arguments are passed as JSON values and the return value is also JSON.

Example

use viewpoint_core::page::binding::BindingManager;

manager.expose_function("compute", |args| async move {
    let x: i64 = serde_json::from_value(args[0].clone()).map_err(|e| e.to_string())?;
    let y: i64 = serde_json::from_value(args[1].clone()).map_err(|e| e.to_string())?;
    serde_json::to_value(x + y).map_err(|e| e.to_string())
}).await?;

pub async fn remove_function(&self, name: &str) -> Result<(), PageError>

Remove an exposed function.

pub async fn rebind_all(&self) -> Result<(), PageError>

Re-bind all functions after navigation.

This should be called after page navigation to re-inject the wrapper scripts.