FIX: add title attribute for notifications

app/assets/javascripts/discourse/widgets/notification-item.js.es6

@@ -147,13 +147,22 @@ createWidget("notification-item", {
   html(attrs) {
     const notificationType = attrs.notification_type;
     const lookup = this.site.get("notificationLookup");
-    const notName = lookup[notificationType];
+    const notificationName = lookup[notificationType];
 
     let { data } = attrs;
-    let infoKey = notName === "custom" ? data.message : notName;
-    let text = emojiUnescape(this.text(notificationType, notName));
+    let infoKey =
+      notificationName === "custom" ? data.message : notificationName;
+    let text = emojiUnescape(this.text(notificationType, notificationName));
     let icon = iconNode(`notification.${infoKey}`);
 
+    let title;
+
+    if (notificationName) {
+      title = I18n.t(`notification.titles.${notificationName}`);
+    } else {
+      title = "";
+    }
+
     // We can use a `<p>` tag here once other languages have fixed their HTML
     // translations.
     let html = new RawHtml({ html: `<div>${text}</div>` });
@@ -162,7 +171,11 @@ createWidget("notification-item", {
 
     const href = this.url();
     return href
-      ? h("a", { attributes: { href, "data-auto-route": true } }, contents)
+      ? h(
+          "a",
+          { attributes: { href, title, "data-auto-route": true } },
+          contents
+        )
       : contents;
   },
 

config/locales/client.en.yml

@@ -1712,6 +1712,27 @@ en:
         confirm_body: "Success! Notifications have been enabled."
         custom: "Notification from {{username}} on %{site_title}"
 
+      titles:
+        mentioned: "mentioned"
+        replied: "new reply"
+        quoted: "quoted"
+        edited: "edited"
+        liked: "new like"
+        private_message: "new private message"
+        invited_to_private_message: "invited to private message"
+        invitee_accepted: "invite accepted"
+        posted: "new post"
+        moved_post: "post moved"
+        linked: "linked"
+        granted_badge: "badge granted"
+        invited_to_topic: "invited to topic"
+        group_mentioned: "group mentioned"
+        group_message_summary: "new group messages"
+        watching_first_post: "new topic"
+        topic_reminder: "topic reminder"
+        liked_consolidated: "new likes"
+        post_approved: "post approved"
+
     upload_selector:
       title: "Add an image"
       title_with_attachments: "Add an image or a file"