New User Onboarding Task List (#9083)

* Improve type of AccessibleButton to accurately represent available props
* Update analytics events

src/MatrixClientPeg.ts

@@ -98,6 +98,12 @@ export interface IMatrixClientPeg {
      */
     userRegisteredWithinLastHours(hours: number): boolean;
 
+    /**
+     * If the current user has been registered by this device then this
+     * returns a boolean of whether it was after a given timestamp.
+     */
+    userRegisteredAfter(date: Date): boolean;
+
     /**
      * Replace this MatrixClientPeg's client with a client instance that has
      * homeserver / identity server URLs and active credentials
@@ -168,6 +174,15 @@ class MatrixClientPegClass implements IMatrixClientPeg {
         }
     }
 
+    public userRegisteredAfter(timestamp: Date): boolean {
+        try {
+            const registrationTime = parseInt(window.localStorage.getItem("mx_registration_time"), 10);
+            return timestamp.getTime() <= registrationTime;
+        } catch (e) {
+            return false;
+        }
+    }
+
     public replaceUsingCreds(creds: IMatrixClientCreds): void {
         this.currentClientCreds = creds;
         this.createClient(creds);