feat(notification): add plugin (#326)

plugins/notification/src/commands.rs

@@ -0,0 +1,54 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+use serde::Deserialize;
+use tauri::{command, AppHandle, Runtime, State};
+
+use crate::{Notification, PermissionState, Result};
+
+/// The options for the notification API.
+#[derive(Debug, Clone, Deserialize)]
+pub struct NotificationOptions {
+    /// The notification title.
+    pub title: String,
+    /// The notification body.
+    pub body: Option<String>,
+    /// The notification icon.
+    pub icon: Option<String>,
+}
+
+#[command]
+pub(crate) async fn is_permission_granted<R: Runtime>(
+    _app: AppHandle<R>,
+    notification: State<'_, Notification<R>>,
+) -> Result<bool> {
+    notification
+        .permission_state()
+        .map(|s| s == PermissionState::Granted)
+}
+
+#[command]
+pub(crate) async fn request_permission<R: Runtime>(
+    _app: AppHandle<R>,
+    notification: State<'_, Notification<R>>,
+) -> Result<PermissionState> {
+    notification.request_permission()
+}
+
+#[command]
+pub(crate) async fn notify<R: Runtime>(
+    _app: AppHandle<R>,
+    notification: State<'_, Notification<R>>,
+    options: NotificationOptions,
+) -> Result<()> {
+    let mut builder = notification.builder().title(options.title);
+    if let Some(body) = options.body {
+        builder = builder.body(body);
+    }
+    if let Some(icon) = options.icon {
+        builder = builder.icon(icon);
+    }
+
+    builder.show()
+}