IPC bridge for WebView ↔ Rust communication

This crate provides the message handling layer between the React UI (running in a WebView) and Rust application logic. It implements JSON-RPC 2.0 style request/response handling with typed message contracts.

Architecture

• ParameterHost trait: Abstracts parameter storage (desktop POC, plugin, etc.)
• IpcHandler: Dispatches JSON-RPC requests to appropriate handlers
• BridgeError: Typed error handling with conversion to IPC error codes

Example

use wavecraft_bridge::{IpcHandler, ParameterHost, BridgeError};
use wavecraft_protocol::{MeterFrame, ParameterInfo};

// Implement ParameterHost for your application state
struct MyApp;

impl ParameterHost for MyApp {
    fn get_parameter(&self, id: &str) -> Option<ParameterInfo> {
        // Implementation
        None
    }
    
    fn set_parameter(&self, id: &str, value: f32) -> Result<(), BridgeError> {
        // Implementation
        Ok(())
    }
    
    fn get_all_parameters(&self) -> Vec<ParameterInfo> {
        // Implementation
        vec![]
    }

    fn get_meter_frame(&self) -> Option<MeterFrame> {
        // Implementation
        None
    }

    fn request_resize(&self, _width: u32, _height: u32) -> bool {
        // Implementation
        false
    }
}

// Create handler
let handler = IpcHandler::new(MyApp);

// Handle incoming JSON from WebView
let request_json = r#"{"jsonrpc":"2.0","id":1,"method":"ping"}"#;
let response_json = handler.handle_json(request_json);