fix(groupinvite): prevent multiple groupinvites to the same group from showing up

fix #2305

src/widget/form/groupinviteform.cpp

@@ -114,9 +114,16 @@ void GroupInviteForm::show(ContentLayout* contentLayout)
  * @param friendId Id of a friend that invited you
  * @param type Type of the invitation - text or AV
  * @param invite Information that invited person needs to see an invitation
+ * @return true if notification is needed, false otherwise
  */
-void GroupInviteForm::addGroupInvite(int32_t friendId, uint8_t type, QByteArray invite)
+bool GroupInviteForm::addGroupInvite(int32_t friendId, uint8_t type, QByteArray invite)
 {
+    // supress duplicate invite messages
+    for (GroupInviteWidget* existing : invites) {
+        if (existing->getInviteInfo().getInvite() == invite) {
+            return false;
+        }
+    }
     GroupInviteWidget* widget = new GroupInviteWidget(this, GroupInvite(friendId, type, invite));
     scroll->widget()->layout()->addWidget(widget);
     invites.append(widget);
@@ -129,7 +136,9 @@ void GroupInviteForm::addGroupInvite(int32_t friendId, uint8_t type, QByteArray
             [this](const GroupInvite& inviteInfo) { deleteInviteWidget(inviteInfo); });
     if (isVisible()) {
         emit groupInvitesSeen();
+        return false;
     }
+    return true;
 }
 
 void GroupInviteForm::showEvent(QShowEvent* event)

src/widget/form/groupinviteform.h

@@ -46,7 +46,7 @@ public:
     ~GroupInviteForm();
 
     void show(ContentLayout* contentLayout);
-    void addGroupInvite(int32_t friendId, uint8_t type, QByteArray invite);
+    bool addGroupInvite(int32_t friendId, uint8_t type, QByteArray invite);
     bool isShown() const;
 
 signals:

src/widget/widget.cpp

@@ -1565,10 +1565,12 @@ void Widget::onGroupInviteReceived(int32_t friendId, uint8_t type, QByteArray in
         if (Settings::getInstance().getAutoGroupInvite(f->getPublicKey())) {
             onGroupInviteAccepted(friendId, type, invite);
         } else {
+            if (!groupInviteForm->addGroupInvite(friendId, type, invite)) {
+                return;
+            }
             ++unreadGroupInvites;
             groupInvitesUpdate();
             newMessageAlert(window(), isActiveWindow(), true, true);
-            groupInviteForm->addGroupInvite(friendId, type, invite);
         }
     } else {
         qWarning() << "onGroupInviteReceived: Unknown groupchat type:" << type;