Fix crash when fetching global profile

src/MainWindow.cpp

@@ -67,6 +67,7 @@ Q_DECLARE_METATYPE(mtx::events::collections::TimelineEvents)
 Q_DECLARE_METATYPE(std::vector<DeviceInfo>)
 Q_DECLARE_METATYPE(std::vector<mtx::responses::PublicRoomsChunk>)
 Q_DECLARE_METATYPE(mtx::responses::PublicRoom)
+Q_DECLARE_METATYPE(mtx::responses::Profile)
 
 MainWindow *MainWindow::instance_ = nullptr;
 
@@ -145,6 +146,7 @@ MainWindow::registerQmlTypes()
     qRegisterMetaType<mtx::events::msg::KeyVerificationRequest>();
     qRegisterMetaType<mtx::events::msg::KeyVerificationStart>();
     qRegisterMetaType<mtx::responses::PublicRoom>();
+    qRegisterMetaType<mtx::responses::Profile>();
     qRegisterMetaType<CombinedImagePackModel *>();
     qRegisterMetaType<mtx::events::collections::TimelineEvents>();
     qRegisterMetaType<std::vector<DeviceInfo>>();

src/ui/UserProfile.cpp

@@ -487,17 +487,27 @@ UserProfile::isLoading() const
 void
 UserProfile::getGlobalProfileData()
 {
-    http::client()->get_profile(
-      userid_.toStdString(), [this](const mtx::responses::Profile &res, mtx::http::RequestErr err) {
-          if (err) {
-              nhlog::net()->warn("failed to retrieve profile info for {}", userid_.toStdString());
-              return;
-          }
+    auto profProx = std::make_shared<UserProfileFetchProxy>();
+    connect(profProx.get(),
+            &UserProfileFetchProxy::profileFetched,
+            this,
+            [this](const mtx::responses::Profile &res) {
+                emit globalUsernameRetrieved(QString::fromStdString(res.display_name));
+                globalAvatarUrl = QString::fromStdString(res.avatar_url);
+                emit avatarUrlChanged();
+            });
 
-          emit globalUsernameRetrieved(QString::fromStdString(res.display_name));
-          globalAvatarUrl = QString::fromStdString(res.avatar_url);
-          emit avatarUrlChanged();
-      });
+    http::client()->get_profile(userid_.toStdString(),
+                                [prox = std::move(profProx), user = userid_.toStdString()](
+                                  const mtx::responses::Profile &res, mtx::http::RequestErr err) {
+                                    if (err) {
+                                        nhlog::net()->warn("failed to retrieve profile info for {}",
+                                                           user);
+                                        return;
+                                    }
+
+                                    emit prox->profileFetched(res);
+                                });
 }
 
 void

src/ui/UserProfile.h

@@ -32,6 +32,19 @@ Q_ENUM_NS(Status)
 class DeviceVerificationFlow;
 class TimelineViewManager;
 
+class UserProfileFetchProxy : public QObject
+{
+    Q_OBJECT
+
+public:
+    UserProfileFetchProxy(QObject *p = nullptr)
+      : QObject(p)
+    {}
+
+signals:
+    void profileFetched(mtx::responses::Profile);
+};
+
 class DeviceInfo
 {
 public: