Fix Netplay Traversal Error

Source/Core/DolphinQt/MainWindow.cpp

@@ -944,6 +944,109 @@ bool MainWindow::RequestStop()
   return true;
 }
 
+bool MainWindow::RequestStopNetplay()
+{
+  if (!Core::IsRunning())
+  {
+    Core::QueueHostJob([this] { OnStopComplete(); }, true);
+    return true;
+  }
+
+  const bool rendered_widget_was_active =
+      m_render_widget->isActiveWindow() && !m_render_widget->isFullScreen();
+  QWidget* confirm_parent = (!m_rendering_to_main && rendered_widget_was_active) ?
+                                m_render_widget :
+                                static_cast<QWidget*>(this);
+  const bool was_cursor_locked = m_render_widget->IsCursorLocked();
+
+  if (!m_render_widget->isFullScreen())
+    m_render_widget_geometry = m_render_widget->saveGeometry();
+  else
+    FullScreen();
+
+  if (Config::Get(Config::MAIN_CONFIRM_ON_STOP))
+  {
+    if (std::exchange(m_stop_confirm_showing, true))
+      return true;
+
+    Common::ScopeGuard confirm_lock([this] { m_stop_confirm_showing = false; });
+
+    const Core::State state = Core::GetState();
+
+    // Only pause the game, if NetPlay is not running
+    bool pause = !Settings::Instance().GetNetPlayClient();
+
+    if (pause)
+      Core::SetState(Core::State::Paused);
+
+    if (rendered_widget_was_active)
+    {
+      // We have to do this before creating the message box, otherwise we might receive the window
+      // activation event before we know we need to lock the cursor again.
+      m_render_widget->SetCursorLockedOnNextActivation(was_cursor_locked);
+    }
+
+    // This is to avoid any "race conditions" between the "Window Activate" message and the
+    // message box returning, which could break cursor locking depending on the order
+    m_render_widget->SetWaitingForMessageBox(true);
+    auto confirm = ModalMessageBox::question(
+        confirm_parent, tr("Confirm"),
+        m_stop_requested ? tr("A user disconnected from the netplay lobby"
+                              "Netplay session has ended due to someone crashing"
+                              "before NetPlay complete."
+                              "All players control Player 1 and have been seperated") :
+                           tr("Do you want to stop the current emulation?"),
+        QMessageBox::Yes | QMessageBox::No, QMessageBox::NoButton, Qt::ApplicationModal);
+
+    // If a user confirmed stopping the emulation, we do not capture the cursor again,
+    // even if the render widget will stay alive for a while.
+    // If a used rejected stopping the emulation, we instead capture the cursor again,
+    // and let them continue playing as if nothing had happened
+    // (assuming cursor locking is on).
+    if (confirm != QMessageBox::Yes)
+    {
+      m_render_widget->SetWaitingForMessageBox(false);
+
+      if (pause)
+        Core::SetState(state);
+
+      return false;
+    }
+    else
+    {
+      m_render_widget->SetCursorLockedOnNextActivation(false);
+      // This needs to be after SetCursorLockedOnNextActivation(false) as it depends on it
+      m_render_widget->SetWaitingForMessageBox(false);
+    }
+  }
+
+  OnStopRecording();
+  // TODO: Add Debugger shutdown
+
+  if (!m_stop_requested && UICommon::TriggerSTMPowerEvent())
+  {
+    m_stop_requested = true;
+
+    // Unpause because gracefully shutting down needs the game to actually request a shutdown.
+    // TODO: Do not unpause in debug mode to allow debugging until the complete shutdown.
+    if (Core::GetState() == Core::State::Paused)
+      Core::SetState(Core::State::Running);
+
+    // Tell NetPlay about the power event
+    if (NetPlay::IsNetPlayRunning())
+      NetPlay::SendPowerButtonEvent();
+
+    return true;
+  }
+
+  ForceStop();
+#ifdef Q_OS_WIN
+  // Allow windows to idle or turn off display again
+  SetThreadExecutionState(ES_CONTINUOUS);
+#endif
+  return true;
+}
+
 void MainWindow::ForceStop()
 {
   Core::Stop();

Source/Core/DolphinQt/MainWindow.h

@@ -87,6 +87,7 @@ private:
 
   // May ask for confirmation. Returns whether or not it actually stopped.
   bool RequestStop();
+  bool RequestStopNetplay();
   void ForceStop();
   void Reset();
   void FrameAdvance();

Source/Core/DolphinQt/NetPlay/NetPlaySetupDialog.cpp

@@ -507,12 +507,11 @@ void NetPlaySetupDialog::UpdateListBrowser()
   });
 
   auto* hor_header = m_table_widget->horizontalHeader();
-
   hor_header->setSectionResizeMode(0, QHeaderView::Stretch);
   hor_header->setSectionResizeMode(1, QHeaderView::Stretch);
-  hor_header->setSectionResizeMode(2, QHeaderView::Stretch);
+  hor_header->setSectionResizeMode(2, QHeaderView::ResizeToContents);
   hor_header->setSectionResizeMode(3, QHeaderView::ResizeToContents);
-  hor_header->setSectionResizeMode(4, QHeaderView::ResizeToContents);
+
   hor_header->setHighlightSections(false);
 
   m_table_widget->setRowCount(session_count);
@@ -531,10 +530,10 @@ void NetPlaySetupDialog::UpdateListBrowser()
     for (const auto& item : {name, game_id, player_count, in_game})
       item->setFlags(enabled ? Qt::ItemIsEnabled | Qt::ItemIsSelectable : Qt::NoItemFlags);
 
-    m_table_widget->setItem(i, 1, name);
-    m_table_widget->setItem(i, 2, game_id);
-    m_table_widget->setItem(i, 3, player_count);
-    m_table_widget->setItem(i, 4, in_game);
+    m_table_widget->setItem(i, 0, name);
+    m_table_widget->setItem(i, 1, game_id);
+    m_table_widget->setItem(i, 2, player_count);
+    m_table_widget->setItem(i, 3, in_game);
 
   }