DolphinQt: Use non-autodismissable menus in menu bar.

A new class that derives from `QMenu` has been introduced. Menus of this
`NonAutodismissibleMenu` type will stay visible when a _checkable_
action is triggered.

This is convenient in menus that feature a series of check boxes that
toggle visibility of third components (e.g. the **List Columns** menu),
allowing the user to toggle several actions at once.

For now, the new type is used in the top menu bar.

Source/Core/DolphinQt/CMakeLists.txt

@@ -314,6 +314,8 @@ add_executable(dolphin-emu
   QtUtils/ImageConverter.h
   QtUtils/ModalMessageBox.cpp
   QtUtils/ModalMessageBox.h
+  QtUtils/NonAutodismissibleMenu.cpp
+  QtUtils/NonAutodismissibleMenu.h
   QtUtils/NonDefaultQPushButton.cpp
   QtUtils/NonDefaultQPushButton.h
   QtUtils/ParallelProgressDialog.h

Source/Core/DolphinQt/DolphinQt.vcxproj

@@ -195,6 +195,7 @@
     <ClCompile Include="QtUtils\FileOpenEventFilter.cpp" />
     <ClCompile Include="QtUtils\ImageConverter.cpp" />
     <ClCompile Include="QtUtils\ModalMessageBox.cpp" />
+    <ClCompile Include="QtUtils\NonAutodismissibleMenu.cpp" />
     <ClCompile Include="QtUtils\NonDefaultQPushButton.cpp" />
     <ClCompile Include="QtUtils\PartiallyClosableTabWidget.cpp" />
     <ClCompile Include="QtUtils\QtUtils.cpp" />

Source/Core/DolphinQt/MenuBar.cpp

@@ -63,6 +63,7 @@
 #include "DolphinQt/NANDRepairDialog.h"
 #include "DolphinQt/QtUtils/DolphinFileDialog.h"
 #include "DolphinQt/QtUtils/ModalMessageBox.h"
+#include "DolphinQt/QtUtils/NonAutodismissibleMenu.h"
 #include "DolphinQt/QtUtils/ParallelProgressDialog.h"
 #include "DolphinQt/QtUtils/SetWindowDecorations.h"
 #include "DolphinQt/Settings.h"
@@ -450,7 +451,8 @@ void MenuBar::UpdateStateSlotMenu()
 
 void MenuBar::AddViewMenu()
 {
-  QMenu* view_menu = addMenu(tr("&View"));
+  auto* const view_menu{new QtUtils::NonAutodismissibleMenu(tr("&View"), this)};
+  addMenu(view_menu);
   QAction* show_log = view_menu->addAction(tr("Show &Log"));
   show_log->setCheckable(true);
   show_log->setChecked(Settings::Instance().IsLogVisible());
@@ -705,7 +707,8 @@ void MenuBar::AddListColumnsMenu(QMenu* view_menu)
       {tr("Tags"), &Config::MAIN_GAMELIST_COLUMN_TAGS}};
 
   QActionGroup* column_group = new QActionGroup(this);
-  m_cols_menu = view_menu->addMenu(tr("List Columns"));
+  m_cols_menu = new QtUtils::NonAutodismissibleMenu(tr("List Columns"), view_menu);
+  view_menu->addMenu(m_cols_menu);
   column_group->setExclusive(false);
 
   for (const auto& key : columns.keys())
@@ -730,7 +733,8 @@ void MenuBar::AddShowPlatformsMenu(QMenu* view_menu)
       {tr("Show ELF/DOL"), &Config::MAIN_GAMELIST_LIST_ELF_DOL}};
 
   QActionGroup* platform_group = new QActionGroup(this);
-  QMenu* plat_menu = view_menu->addMenu(tr("Show Platforms"));
+  auto* const plat_menu{new QtUtils::NonAutodismissibleMenu(tr("Show Platforms"), view_menu)};
+  view_menu->addMenu(plat_menu);
   platform_group->setExclusive(false);
 
   for (const auto& key : platform_map.keys())
@@ -764,7 +768,8 @@ void MenuBar::AddShowRegionsMenu(QMenu* view_menu)
       {tr("Show World"), &Config::MAIN_GAMELIST_LIST_WORLD},
       {tr("Show Unknown"), &Config::MAIN_GAMELIST_LIST_UNKNOWN}};
 
-  QMenu* const region_menu = view_menu->addMenu(tr("Show Regions"));
+  auto* const region_menu{new QtUtils::NonAutodismissibleMenu(tr("Show Regions"), view_menu)};
+  view_menu->addMenu(region_menu);
   const QAction* const show_all_regions = region_menu->addAction(tr("Show All"));
   const QAction* const hide_all_regions = region_menu->addAction(tr("Hide All"));
   region_menu->addSeparator();
@@ -792,7 +797,8 @@ void MenuBar::AddShowRegionsMenu(QMenu* view_menu)
 
 void MenuBar::AddMovieMenu()
 {
-  auto* movie_menu = addMenu(tr("&Movie"));
+  auto* const movie_menu{new QtUtils::NonAutodismissibleMenu(tr("&Movie"), this)};
+  addMenu(movie_menu);
   m_recording_start =
       movie_menu->addAction(tr("Start Re&cording Input"), this, [this] { emit StartRecording(); });
   m_recording_play =

Source/Core/DolphinQt/QtUtils/NonAutodismissibleMenu.cpp

@@ -0,0 +1,28 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "DolphinQt/QtUtils/NonAutodismissibleMenu.h"
+
+#include <QAction>
+#include <QMouseEvent>
+
+namespace QtUtils
+{
+
+void NonAutodismissibleMenu::mouseReleaseEvent(QMouseEvent* const event)
+{
+  if (!event)
+    return;
+
+  QAction* const action{activeAction()};
+  if (action && action->isEnabled() && action->isCheckable())
+  {
+    action->trigger();
+    event->accept();
+    return;
+  }
+
+  QMenu::mouseReleaseEvent(event);
+}
+
+}  // namespace QtUtils

Source/Core/DolphinQt/QtUtils/NonAutodismissibleMenu.h

@@ -0,0 +1,22 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QMenu>
+
+namespace QtUtils
+{
+
+/// A menu widget based on \c QMenu that will not be automatically dismissed when one of its
+/// \em checkable actions are triggered.
+class NonAutodismissibleMenu : public QMenu
+{
+public:
+  using QMenu::QMenu;
+
+protected:
+  void mouseReleaseEvent(QMouseEvent* event) override;
+};
+
+}  // namespace QtUtils