added updating mechanic

src/widgets/lastruncrashdialog.cpp

@@ -59,10 +59,20 @@ LastRunCrashDialog::LastRunCrashDialog()
             case singletons::UpdateManager::NoUpdateAvailable: {
                 update->setText("No update abailable.");
             } break;
-            case singletons::UpdateManager::Error: {
+            case singletons::UpdateManager::SearchFailed: {
                 update->setText("Error while searching for update.\nEither the update service is "
                                 "temporarily down or there is an issue with your installation.");
             } break;
+            case singletons::UpdateManager::Downloading: {
+                update->setText(
+                    "Downloading the update. Chatterino will close once the download is done.");
+            } break;
+            case singletons::UpdateManager::DownloadFailed: {
+                update->setText("Download failed.");
+            } break;
+            case singletons::UpdateManager::WriteFileFailed: {
+                update->setText("Writing the update file to the hard drive failed.");
+            } break;
         }
     };
 

src/widgets/logindialog.cpp

@@ -56,6 +56,8 @@ void LogInWithCredentials(const std::string &userID, const std::string &username
     getApp()->accounts->twitch.reloadUsers();
 
     //    messageBox.exec();
+
+    getApp()->accounts->twitch.currentUsername = username;
 }
 
 }  // namespace
@@ -77,7 +79,7 @@ BasicLoginWidget::BasicLoginWidget()
         QDesktopServices::openUrl(QUrl("https://chatterino.com/client_login"));
     });
 
-    connect(&this->ui.pasteCodeButton, &QPushButton::clicked, []() {
+    connect(&this->ui.pasteCodeButton, &QPushButton::clicked, [this]() {
         QClipboard *clipboard = QGuiApplication::clipboard();
         QString clipboardString = clipboard->text();
         QStringList parameters = clipboardString.split(';');
@@ -108,6 +110,7 @@ BasicLoginWidget::BasicLoginWidget()
         LogInWithCredentials(userID, username, clientID, oauthToken);
 
         clipboard->clear();
+        this->window()->close();
     });
 }
 
@@ -191,7 +194,7 @@ void AdvancedLoginWidget::refreshButtons()
 LoginWidget::LoginWidget()
 {
 #ifdef USEWINSDK
-    ::SetWindowPos((HWND)this->winId(), HWND_TOPMOST, 0, 0, 0, 0,
+    ::SetWindowPos(HWND(this->winId()), HWND_TOPMOST, 0, 0, 0, 0,
                    SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
 #endif
 
@@ -205,7 +208,7 @@ LoginWidget::LoginWidget()
 
     this->ui.buttonBox.setStandardButtons(QDialogButtonBox::Close);
 
-    connect(&this->ui.buttonBox, &QDialogButtonBox::rejected, [this]() {
+    QObject::connect(&this->ui.buttonBox, &QDialogButtonBox::rejected, [this]() {
         this->close();  //
     });
 

src/widgets/settingspages/accountspage.cpp

@@ -8,11 +8,11 @@
 #include "widgets/helper/editablemodelview.hpp"
 #include "widgets/logindialog.hpp"
 
-#include <algorithm>
 #include <QDialogButtonBox>
 #include <QHeaderView>
 #include <QTableView>
 #include <QVBoxLayout>
+#include <algorithm>
 
 namespace chatterino {
 namespace widgets {

src/widgets/settingspages/commandpage.cpp

@@ -37,7 +37,8 @@ CommandPage::CommandPage()
     auto layout = layoutCreator.emplace<QVBoxLayout>().withoutMargin();
 
     auto warning = layout.emplace<QLabel>("The command system will be reworked in the "
-                                          "future!\nYour saved commands will get discarded then.");
+                                          "future!\nYour saved commands will get discarded then. "
+                                          "Deleting commands crashes chatterino right now.");
     warning.getElement()->setStyleSheet("color: #f00");
 
     helper::EditableModelView *view =

src/widgets/window.cpp

@@ -235,6 +235,22 @@ bool Window::event(QEvent *event)
     return BaseWindow::event(event);
 }
 
+void Window::showEvent(QShowEvent *event)
+{
+    if (getApp()->settings->startUpNotification.getValue() < 1) {
+        getApp()->settings->startUpNotification = 1;
+
+        auto box =
+            new QMessageBox(QMessageBox::Information, "Chatterino 2 Beta",
+                            "Please note that this software is not stable yet. Things are rough "
+                            "around the edges and everything is subject to change.");
+        box->setAttribute(Qt::WA_DeleteOnClose);
+        box->show();
+    }
+
+    BaseWindow::showEvent(event);
+}
+
 void Window::closeEvent(QCloseEvent *)
 {
     if (this->type == Window::Main) {

src/widgets/window.hpp

@@ -38,6 +38,7 @@ public:
     WindowType getType();
 
 protected:
+    void showEvent(QShowEvent *) override;
     void closeEvent(QCloseEvent *event) override;
     bool event(QEvent *event) override;