update window title when changing accounts

src/widgets/window.cpp

@@ -1,4 +1,5 @@
 #include "widgets/window.hpp"
+#include "accountmanager.hpp"
 #include "channelmanager.hpp"
 #include "colorscheme.hpp"
 #include "settingsmanager.hpp"
@@ -25,6 +26,15 @@ Window::Window(const QString &_windowName, ChannelManager &_channelManager,
 {
     this->initAsWindow();
 
+    AccountManager::getInstance().Twitch.currentUsername.connect(
+        [this](const std::string &newUsername, auto) {
+            if (newUsername.empty()) {
+                this->refreshWindowTitle("Not logged in");
+            } else {
+                this->refreshWindowTitle(QString::fromStdString(newUsername));
+            }
+        });
+
     QVBoxLayout *layout = new QVBoxLayout(this);
 
     // add titlebar
@@ -110,6 +120,11 @@ Notebook &Window::getNotebook()
     return this->notebook;
 }
 
+void Window::refreshWindowTitle(const QString &username)
+{
+    this->setWindowTitle(username + " - Chatterino for Twitch");
+}
+
 void Window::closeEvent(QCloseEvent *)
 {
     const QRect &geom = this->geometry();