Improve typing notification handling

portal.go

@@ -1282,6 +1282,24 @@ func (portal *Portal) handleDiscordMessageDelete(user *User, msg *discordgo.Mess
 	}
 }
 
+func (portal *Portal) handleDiscordTyping(evt *discordgo.TypingStart) {
+	puppet := portal.bridge.GetPuppetByID(evt.UserID)
+	if puppet.Name == "" {
+		// Puppet hasn't been synced yet
+		return
+	}
+	intent := puppet.IntentFor(portal)
+	err := intent.EnsureJoined(portal.MXID)
+	if err != nil {
+		portal.log.Warnfln("Failed to ensure %s is joined for typing notification: %v", puppet.MXID, portal.MXID, err)
+		return
+	}
+	_, err = intent.UserTyping(portal.MXID, true, 12*time.Second)
+	if err != nil {
+		portal.log.Warnfln("Failed to mark %s as typing: %v", puppet.MXID, portal.MXID, err)
+	}
+}
+
 func (portal *Portal) syncParticipants(source *User, participants []*discordgo.User) {
 	for _, participant := range participants {
 		puppet := portal.bridge.GetPuppetByID(participant.ID)

user.go

@@ -995,11 +995,7 @@ func (user *User) typingStartHandler(_ *discordgo.Session, t *discordgo.TypingSt
 	if portal == nil || portal.MXID == "" {
 		return
 	}
-	puppet := user.bridge.GetPuppetByID(t.UserID)
-	_, err := puppet.IntentFor(portal).UserTyping(portal.MXID, true, 12*time.Second)
-	if err != nil {
-		user.log.Warnfln("Failed to mark %s as typing in %s: %v", puppet.MXID, portal.MXID, err)
-	}
+	portal.handleDiscordTyping(t)
 }
 
 func (user *User) interactionSuccessHandler(_ *discordgo.Session, s *discordgo.InteractionSuccess) {