chore: move single-instance plugin

plugins/single-instance/src/lib.rs

@@ -0,0 +1,24 @@
+use tauri::{plugin::TauriPlugin, AppHandle, Manager, Runtime};
+
+#[cfg(target_os = "windows")]
+#[path = "platform_impl/windows.rs"]
+mod platform_impl;
+#[cfg(target_os = "linux")]
+#[path = "platform_impl/linux.rs"]
+mod platform_impl;
+#[cfg(target_os = "macos")]
+#[path = "platform_impl/macos.rs"]
+mod platform_impl;
+
+pub(crate) type SingleInstanceCallback<R> =
+    dyn FnMut(&AppHandle<R>, Vec<String>, String) + Send + Sync + 'static;
+
+pub fn init<R: Runtime, F: FnMut(&AppHandle<R>, Vec<String>, String) + Send + Sync + 'static>(
+    f: F,
+) -> TauriPlugin<R> {
+    platform_impl::init(Box::new(f))
+}
+
+pub fn destroy<R: Runtime, M: Manager<R>>(manager: &M) {
+    platform_impl::destroy(manager)
+}