refactor: turn StreamerMode into a singleton(-like thing) (#5216)

src/widgets/Notebook.cpp

@@ -7,10 +7,10 @@
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/InitUpdateButton.hpp"
-#include "util/StreamerMode.hpp"
 #include "widgets/dialogs/SettingsDialog.hpp"
 #include "widgets/helper/ChannelView.hpp"
 #include "widgets/helper/NotebookButton.hpp"
@@ -1437,9 +1437,8 @@ void SplitNotebook::addCustomButtons()
                          getIApp()->getWindows()->showSettingsDialog(
                              this, SettingsDialogPreference::StreamerMode);
                      });
-    this->signalHolder_.managedConnect(getApp()->streamerModeChanged, [this]() {
-        this->updateStreamerModeIcon();
-    });
+    QObject::connect(getIApp()->getStreamerMode(), &IStreamerMode::changed,
+                     this, &SplitNotebook::updateStreamerModeIcon);
     this->updateStreamerModeIcon();
 }
 
@@ -1462,7 +1461,8 @@ void SplitNotebook::updateStreamerModeIcon()
         this->streamerModeIcon_->setPixmap(
             getResources().buttons.streamerModeEnabledDark);
     }
-    this->streamerModeIcon_->setVisible(isInStreamerMode());
+    this->streamerModeIcon_->setVisible(
+        getIApp()->getStreamerMode()->isEnabled());
 }
 
 void SplitNotebook::themeChangedEvent()

src/widgets/Window.cpp

@@ -12,6 +12,7 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/Updates.hpp"
 #include "singletons/WindowManager.hpp"
@@ -202,9 +203,8 @@ void Window::addCustomTitlebarButtons()
             getIApp()->getWindows()->showSettingsDialog(
                 this, SettingsDialogPreference::StreamerMode);
         });
-    this->signalHolder_.managedConnect(getApp()->streamerModeChanged, [this]() {
-        this->updateStreamerModeIcon();
-    });
+    QObject::connect(getIApp()->getStreamerMode(), &IStreamerMode::changed,
+                     this, &Window::updateStreamerModeIcon);
 
     // Update initial state
     this->updateStreamerModeIcon();
@@ -231,7 +231,8 @@ void Window::updateStreamerModeIcon()
         this->streamerModeTitlebarIcon_->setPixmap(
             getResources().buttons.streamerModeEnabledDark);
     }
-    this->streamerModeTitlebarIcon_->setVisible(isInStreamerMode());
+    this->streamerModeTitlebarIcon_->setVisible(
+        getIApp()->getStreamerMode()->isEnabled());
 #else
     // clang-format off
     assert(false && "Streamer mode TitleBar icon should not exist on non-Windows OSes");
@@ -609,7 +610,7 @@ void Window::addShortcuts()
              }
              else if (mode == 2)
              {
-                 if (isInStreamerMode())
+                 if (getIApp()->getStreamerMode()->isEnabled())
                  {
                      getSettings()->enableStreamerMode.setValue(
                          StreamerModeSetting::Disabled);

src/widgets/dialogs/UserInfoPopup.cpp

@@ -18,12 +18,12 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Clipboard.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
-#include "util/StreamerMode.hpp"
 #include "widgets/helper/ChannelView.hpp"
 #include "widgets/helper/EffectLabel.hpp"
 #include "widgets/helper/InvisibleSizeGrip.hpp"
@@ -858,7 +858,7 @@ void UserInfoPopup::updateUserData()
         this->ui_.userIDLabel->setText(TEXT_USER_ID + user.id);
         this->ui_.userIDLabel->setProperty("copy-text", user.id);
 
-        if (isInStreamerMode() &&
+        if (getIApp()->getStreamerMode()->isEnabled() &&
             getSettings()->streamerModeHideUsercardAvatars)
         {
             this->ui_.avatarButton->setPixmap(getResources().streamerMode);

src/widgets/helper/ChannelView.cpp

@@ -26,13 +26,13 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Clipboard.hpp"
 #include "util/DistanceBetweenPoints.hpp"
 #include "util/Helpers.hpp"
 #include "util/IncognitoBrowser.hpp"
-#include "util/StreamerMode.hpp"
 #include "util/Twitch.hpp"
 #include "widgets/dialogs/ReplyThreadPopup.hpp"
 #include "widgets/dialogs/SettingsDialog.hpp"
@@ -3079,7 +3079,8 @@ void ChannelView::setLinkInfoTooltip(LinkInfo *info)
     ImagePtr thumbnail;
     if (info->hasThumbnail() && thumbnailSize > 0)
     {
-        if (isInStreamerMode() && getSettings()->streamerModeHideLinkThumbnails)
+        if (getIApp()->getStreamerMode()->isEnabled() &&
+            getSettings()->streamerModeHideLinkThumbnails)
         {
             thumbnail = Image::fromResourcePixmap(getResources().streamerMode);
         }

src/widgets/settingspages/GeneralPage.cpp

@@ -17,7 +17,6 @@
 #include "util/FuzzyConvert.hpp"
 #include "util/Helpers.hpp"
 #include "util/IncognitoBrowser.hpp"
-#include "util/StreamerMode.hpp"
 #include "widgets/BaseWindow.hpp"
 #include "widgets/settingspages/GeneralPageView.hpp"
 #include "widgets/splits/SplitInput.hpp"

src/widgets/splits/SplitHeader.cpp

@@ -15,11 +15,11 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutHelper.hpp"
-#include "util/StreamerMode.hpp"
 #include "widgets/dialogs/SettingsDialog.hpp"
 #include "widgets/helper/CommonTexts.hpp"
 #include "widgets/helper/EffectLabel.hpp"
@@ -140,7 +140,7 @@ auto formatTooltip(const TwitchChannel::StreamStatus &s, QString thumbnail)
     }();
 
     auto extraStreamData = [&s]() -> QString {
-        if (isInStreamerMode() &&
+        if (getIApp()->getStreamerMode()->isEnabled() &&
             getSettings()->streamerModeHideViewerCountAndDuration)
         {
             return QStringLiteral(