feat(notification): add plugin (#326)

plugins/notification/src/mobile.rs

@@ -0,0 +1,66 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+use serde::{de::DeserializeOwned, Deserialize};
+use tauri::{
+    plugin::{PluginApi, PluginHandle},
+    AppHandle, Runtime,
+};
+
+use crate::models::*;
+
+#[cfg(target_os = "android")]
+const PLUGIN_IDENTIFIER: &str = "app.tauri.notification";
+
+#[cfg(target_os = "ios")]
+tauri::ios_plugin_binding!(init_plugin_notification);
+
+// initializes the Kotlin or Swift plugin classes
+pub fn init<R: Runtime, C: DeserializeOwned>(
+    _app: &AppHandle<R>,
+    api: PluginApi<R, C>,
+) -> crate::Result<Notification<R>> {
+    #[cfg(target_os = "android")]
+    let handle = api.register_android_plugin(PLUGIN_IDENTIFIER, "NotificationPlugin")?;
+    #[cfg(target_os = "ios")]
+    let handle = api.register_ios_plugin(init_plugin_notification)?;
+    Ok(Notification(handle))
+}
+
+impl<R: Runtime> crate::NotificationBuilder<R> {
+    pub fn show(self) -> crate::Result<()> {
+        self.handle
+            .run_mobile_plugin("notify", self.data)
+            .map_err(Into::into)
+    }
+}
+
+/// Access to the notification APIs.
+pub struct Notification<R: Runtime>(PluginHandle<R>);
+
+impl<R: Runtime> Notification<R> {
+    pub fn builder(&self) -> crate::NotificationBuilder<R> {
+        crate::NotificationBuilder::new(self.0.clone())
+    }
+
+    pub fn request_permission(&self) -> crate::Result<PermissionState> {
+        self.0
+            .run_mobile_plugin::<PermissionResponse>("requestPermission", ())
+            .map(|r| r.permission_state)
+            .map_err(Into::into)
+    }
+
+    pub fn permission_state(&self) -> crate::Result<PermissionState> {
+        self.0
+            .run_mobile_plugin::<PermissionResponse>("permissionState", ())
+            .map(|r| r.permission_state)
+            .map_err(Into::into)
+    }
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct PermissionResponse {
+    permission_state: PermissionState,
+}