1 files changed, 53 insertions, 0 deletions
diff --git a/src/background/presenters/Notifier.ts b/src/background/presenters/Notifier.ts
new file mode 100644
index 0000000..57d58cb
--- /dev/null
+++ b/src/background/presenters/Notifier.ts
@@ -0,0 +1,53 @@
+const NOTIFICATION_ID_UPDATE = 'vimvixen-update';
+const NOTIFICATION_ID_INVALID_SETTINGS = 'vimvixen-update-invalid-settings';
+
+export default interface Notifier {
+  notifyUpdated(version: string, onclick: () => void): Promise<void>;
+
+  notifyInvalidSettings(onclick: () => void): Promise<void>;
+}
+
+export class NotifierImpl implements NotifierImpl {
+  async notifyUpdated(version: string, onclick: () => void): Promise<void> {
+    const title = `Vim Vixen ${version} has been installed`;
+    const message = 'Click here to see release notes';
+
+    const listener = (id: string) => {
+      if (id !== NOTIFICATION_ID_UPDATE) {
+        return;
+      }
+      onclick();
+      browser.notifications.onClicked.removeListener(listener);
+    };
+    browser.notifications.onClicked.addListener(listener);
+
+    await browser.notifications.create(NOTIFICATION_ID_UPDATE, {
+      'type': 'basic',
+      'iconUrl': browser.extension.getURL('resources/icon_48x48.png'),
+      title,
+      message,
+    });
+  }
+
+  async notifyInvalidSettings(onclick: () => void): Promise<void> {
+    const title = `Loaded settings is invalid`;
+    // eslint-disable-next-line max-len
+    const message = 'The default settings is used due to the last saved settings is invalid.  Check your current settings from the add-on preference';
+
+    const listener = (id: string) => {
+      if (id !== NOTIFICATION_ID_INVALID_SETTINGS) {
+        return;
+      }
+      onclick();
+      browser.notifications.onClicked.removeListener(listener);
+    };
+    browser.notifications.onClicked.addListener(listener);
+
+    await browser.notifications.create(NOTIFICATION_ID_INVALID_SETTINGS, {
+      'type': 'basic',
+      'iconUrl': browser.extension.getURL('resources/icon_48x48.png'),
+      title,
+      message,
+    });
+  }
+}