Tauri plugin that is used to inject variables into the webview global namespace.

inject_vars.rs

use std::collections::HashMap;

use tauri::{
  plugin::{Builder, TauriPlugin},
  Runtime,
};

fn create_init_script(vars: HashMap<&str, String>) -> String {
  let vars_str = vars
    .iter()
    .map(|(k, v)| format!("{}: '{}'", k, v))
    .collect::<Vec<_>>()
    .join(",\n");
  format!(
    r#"
        console.log("Successfully injected InputShare variables");
        window.__INJECTED__ = {{
            {}
        }};
    "#,
    vars_str
  )
}

pub fn init<R: Runtime>(vars: HashMap<&str, String>) -> TauriPlugin<R> {
  let init_script = create_init_script(vars);
  Builder::new("inject_vars")
    .js_init_script(init_script)
    .build()
}

Usage in lib.rs:

  let app = tauri::Builder::default()
    .plugin(plugins::inject_vars::init(HashMap::from([
      ("var_name", var_value),
    ])))