INNER CODE UNIT · Rust

on_navigation_starting

versotile-org/verso · verso/src/lib.rs:223

    pub fn on_navigation_starting(
        &self,
        callback: impl Fn(url::Url) -> bool + Send + 'static,
    ) -> Result<(), Box<ipc_channel::ErrorKind>> {
        let old_listener = self
            .event_listeners
            .on_navigation_starting
            .lock()
            .unwrap()
            .replace(Box::new(callback));
        if old_listener.is_none() {
            self.sender
                .send(ToVersoMessage::ListenToOnNavigationStarting)?;
        }
        Ok(())
    }

    /// Listen on web resource requests,

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