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

CHANGELOG.md

@@ -166,6 +166,7 @@
 - Dev: Twitch messages can be sent using Twitch's Helix API instead of IRC (disabled by default). (#5200)
 - Dev: Added estimation for image sizes to avoid layout shifts. (#5192)
 - Dev: Added the `launachable` entry to Linux AppData. (#5210)
+- Dev: Refactor `StreamerMode`. (#5216)
 
 ## 2.4.6
 

benchmarks/src/RecentMessages.cpp

@@ -2,6 +2,7 @@
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/highlights/HighlightController.hpp"
 #include "messages/Emote.hpp"
+#include "mocks/DisabledStreamerMode.hpp"
 #include "mocks/EmptyApplication.hpp"
 #include "mocks/TwitchIrcServer.hpp"
 #include "mocks/UserData.hpp"
@@ -93,6 +94,11 @@ public:
         return &this->seventvEmotes;
     }
 
+    IStreamerMode *getStreamerMode() override
+    {
+        return &this->streamerMode;
+    }
+
     AccountController accounts;
     Emotes emotes;
     mock::UserDataController userData;
@@ -105,6 +111,7 @@ public:
     BttvEmotes bttvEmotes;
     FfzEmotes ffzEmotes;
     SeventvEmotes seventvEmotes;
+    DisabledStreamerMode streamerMode;
 };
 
 std::optional<QJsonDocument> tryReadJsonFile(const QString &path)

mocks/include/mocks/DisabledStreamerMode.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "singletons/StreamerMode.hpp"
+
+class DisabledStreamerMode : public chatterino::IStreamerMode
+{
+public:
+    bool isEnabled() const override
+    {
+        return false;
+    }
+};

mocks/include/mocks/EmptyApplication.hpp

@@ -228,6 +228,13 @@ public:
         return nullptr;
     }
 
+    IStreamerMode *getStreamerMode() override
+    {
+        assert(false && "EmptyApplication::getStreamerMode was called without "
+                        "being initialized");
+        return nullptr;
+    }
+
 private:
     Paths paths_;
     Args args_;

src/Application.cpp

@@ -51,6 +51,7 @@
 #include "singletons/Logging.hpp"
 #include "singletons/Paths.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/Toasts.hpp"
 #include "singletons/Updates.hpp"
@@ -144,6 +145,7 @@ Application::Application(Settings &_settings, const Paths &paths,
     , seventvEmotes(new SeventvEmotes)
     , logging(new Logging(_settings))
     , linkResolver(new LinkResolver)
+    , streamerMode(new StreamerMode)
 #ifdef CHATTERINO_HAVE_PLUGINS
     , plugins(&this->emplace(new PluginController(paths)))
 #endif
@@ -503,6 +505,11 @@ ILinkResolver *Application::getLinkResolver()
     return this->linkResolver.get();
 }
 
+IStreamerMode *Application::getStreamerMode()
+{
+    return this->streamerMode.get();
+}
+
 BttvEmotes *Application::getBttvEmotes()
 {
     assertInGuiThread();
@@ -707,7 +714,7 @@ void Application::initPubSub()
                 }
 
                 if (getSettings()->streamerModeHideModActions &&
-                    isInStreamerMode())
+                    this->getStreamerMode()->isEnabled())
                 {
                     return;
                 }
@@ -756,7 +763,7 @@ void Application::initPubSub()
                 }
 
                 if (getSettings()->streamerModeHideModActions &&
-                    isInStreamerMode())
+                    this->getStreamerMode()->isEnabled())
                 {
                     return;
                 }
@@ -892,9 +899,8 @@ void Application::initPubSub()
 
     std::ignore = this->twitchPubSub->moderation.automodUserMessage.connect(
         [&](const auto &action) {
-            // This condition has been set up to execute isInStreamerMode() as the last thing
+            if (getSettings()->streamerModeHideModActions &&
-            // as it could end up being expensive.
+                this->getStreamerMode()->isEnabled())
-            if (getSettings()->streamerModeHideModActions && isInStreamerMode())
             {
                 return;
             }

src/Application.hpp

@@ -4,8 +4,6 @@
 #include "debug/AssertInGuiThread.hpp"
 #include "singletons/NativeMessaging.hpp"
 
-#include <pajlada/signals.hpp>
-#include <pajlada/signals/signal.hpp>
 #include <QApplication>
 
 #include <cassert>
@@ -55,6 +53,7 @@ class BttvEmotes;
 class FfzEmotes;
 class SeventvEmotes;
 class ILinkResolver;
+class IStreamerMode;
 
 class IApplication
 {
@@ -97,6 +96,7 @@ public:
     virtual FfzEmotes *getFfzEmotes() = 0;
     virtual SeventvEmotes *getSeventvEmotes() = 0;
     virtual ILinkResolver *getLinkResolver() = 0;
+    virtual IStreamerMode *getStreamerMode() = 0;
 };
 
 class Application : public IApplication
@@ -165,6 +165,7 @@ private:
     std::unique_ptr<SeventvEmotes> seventvEmotes;
     const std::unique_ptr<Logging> logging;
     std::unique_ptr<ILinkResolver> linkResolver;
+    std::unique_ptr<IStreamerMode> streamerMode;
 #ifdef CHATTERINO_HAVE_PLUGINS
     PluginController *const plugins{};
 #endif
@@ -216,8 +217,7 @@ public:
     SeventvEmotes *getSeventvEmotes() override;
 
     ILinkResolver *getLinkResolver() override;
-
+    IStreamerMode *getStreamerMode() override;
-    pajlada::Signals::NoArgSignal streamerModeChanged;
 
 private:
     void addSingleton(Singleton *singleton);

src/CMakeLists.txt

@@ -452,6 +452,8 @@ set(SOURCE_FILES
         singletons/Resources.hpp
         singletons/Settings.cpp
         singletons/Settings.hpp
+        singletons/StreamerMode.cpp
+        singletons/StreamerMode.hpp
         singletons/Theme.cpp
         singletons/Theme.hpp
         singletons/Toasts.cpp
@@ -505,8 +507,6 @@ set(SOURCE_FILES
         util/SplitCommand.hpp
         util/StreamLink.cpp
         util/StreamLink.hpp
-        util/StreamerMode.cpp
-        util/StreamerMode.hpp
         util/ThreadGuard.hpp
         util/Twitch.cpp
         util/Twitch.hpp
@@ -770,6 +770,7 @@ target_link_libraries(${LIBRARY_PROJECT}
         RapidJSON::RapidJSON
         LRUCache
         MagicEnum
+        $<$<BOOL:${WIN32}>:Wtsapi32>
         )
 if (CHATTERINO_PLUGINS)
     target_link_libraries(${LIBRARY_PROJECT} PUBLIC lua)

src/controllers/commands/builtin/twitch/SendWhisper.cpp

@@ -16,6 +16,7 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Emotes.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Theme.hpp"
 #include "util/Twitch.hpp"
 
@@ -183,7 +184,7 @@ bool appendWhisperMessageWordsLocally(const QStringList &words)
 
     if (getSettings()->inlineWhispers &&
         !(getSettings()->streamerModeSuppressInlineWhispers &&
-          isInStreamerMode()))
+          getIApp()->getStreamerMode()->isEnabled()))
     {
         app->twitch->forEachChannel(
             [&messagexD, overrideFlags](ChannelPtr _channel) {

src/controllers/notifications/NotificationController.cpp

@@ -9,6 +9,7 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Toasts.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
@@ -186,14 +187,15 @@ void NotificationController::checkStream(bool live, QString channelName)
         getIApp()->getToasts()->sendChannelNotification(channelName, QString(),
                                                         Platform::Twitch);
     }
+    bool inStreamerMode = getIApp()->getStreamerMode()->isEnabled();
     if (getSettings()->notificationPlaySound &&
-        !(isInStreamerMode() &&
+        !(inStreamerMode &&
           getSettings()->streamerModeSuppressLiveNotifications))
     {
         getIApp()->getNotifications()->playSound();
     }
     if (getSettings()->notificationFlashTaskbar &&
-        !(isInStreamerMode() &&
+        !(inStreamerMode &&
           getSettings()->streamerModeSuppressLiveNotifications))
     {
         getIApp()->getWindows()->sendAlert();

src/messages/SharedMessageBuilder.cpp

@@ -11,10 +11,10 @@
 #include "messages/MessageElement.hpp"
 #include "providers/twitch/TwitchBadge.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
 #include "util/Qt.hpp"
-#include "util/StreamerMode.hpp"
 
 #include <QFileInfo>
 
@@ -204,7 +204,8 @@ void SharedMessageBuilder::triggerHighlights(
     const QString &channelName, bool playSound,
     const std::optional<QUrl> &customSoundUrl, bool windowAlert)
 {
-    if (isInStreamerMode() && getSettings()->streamerModeMuteMentions)
+    if (getIApp()->getStreamerMode()->isEnabled() &&
+        getSettings()->streamerModeMuteMentions)
     {
         // We are in streamer mode with muting mention sounds enabled. Do nothing.
         return;

src/messages/layouts/MessageLayout.cpp

@@ -9,9 +9,9 @@
 #include "messages/Selection.hpp"
 #include "providers/colors/ColorProvider.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/DebugCount.hpp"
-#include "util/StreamerMode.hpp"
 
 #include <QApplication>
 #include <QDebug>
@@ -160,11 +160,9 @@ void MessageLayout::actuallyLayout(int width, MessageElementFlags flags)
         if (this->message_->flags.has(MessageFlag::Timeout) ||
             this->message_->flags.has(MessageFlag::Untimeout))
         {
-            // This condition has been set up to execute isInStreamerMode() as the last thing
-            // as it could end up being expensive.
             if (hideModerationActions ||
                 (getSettings()->streamerModeHideModActions &&
-                 isInStreamerMode()))
+                 getIApp()->getStreamerMode()->isEnabled()))
             {
                 continue;
             }

src/providers/twitch/IrcMessageHandler.cpp

@@ -22,12 +22,12 @@
 #include "providers/twitch/TwitchMessageBuilder.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/ChannelHelpers.hpp"
 #include "util/FormatTime.hpp"
 #include "util/Helpers.hpp"
 #include "util/IrcHelpers.hpp"
-#include "util/StreamerMode.hpp"
 
 #include <IrcMessage>
 #include <QLocale>
@@ -931,7 +931,7 @@ void IrcMessageHandler::handleWhisperMessage(Communi::IrcMessage *ircMessage)
 
     if (getSettings()->inlineWhispers &&
         !(getSettings()->streamerModeSuppressInlineWhispers &&
-          isInStreamerMode()))
+          getIApp()->getStreamerMode()->isEnabled()))
     {
         getApp()->twitch->forEachChannel(
             [&message, overrideFlags](ChannelPtr channel) {

src/providers/twitch/PubSubManager.cpp

@@ -11,7 +11,6 @@
 #include "util/DebugCount.hpp"
 #include "util/Helpers.hpp"
 #include "util/RapidjsonHelpers.hpp"
-#include "util/StreamerMode.hpp"
 
 #include <QJsonArray>
 

src/providers/twitch/TwitchChannel.cpp

@@ -35,6 +35,7 @@
 #include "providers/twitch/TwitchMessageBuilder.hpp"
 #include "singletons/Emotes.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "singletons/Toasts.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
@@ -180,7 +181,7 @@ TwitchChannel::TwitchChannel(const QString &name)
 
             // Notify on all channels with a ping sound
             if (getSettings()->notificationOnAnyChannel &&
-                !(isInStreamerMode() &&
+                !(getIApp()->getStreamerMode()->isEnabled() &&
                   getSettings()->streamerModeSuppressLiveNotifications))
             {
                 getIApp()->getNotifications()->playSound();

src/singletons/Settings.cpp

@@ -186,11 +186,6 @@ Settings::Settings(const QString &settingsDirectory)
         },
         false);
 #endif
-    this->enableStreamerMode.connect(
-        []() {
-            getApp()->streamerModeChanged.invoke();
-        },
-        false);
 }
 
 Settings::~Settings()

src/singletons/Settings.hpp

@@ -15,7 +15,6 @@
 #include "controllers/sound/ISoundController.hpp"
 #include "singletons/Toasts.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
-#include "util/StreamerMode.hpp"
 #include "widgets/Notebook.hpp"
 
 #include <pajlada/settings/setting.hpp>
@@ -68,6 +67,12 @@ enum class ChatSendProtocol : int {
     Helix = 2,
 };
 
+enum StreamerModeSetting {
+    Disabled = 0,
+    Enabled = 1,
+    DetectStreamingSoftware = 2,
+};
+
 /// Settings which are availlable for reading and writing on the gui thread.
 // These settings are still accessed concurrently in the code but it is bad practice.
 class Settings

src/singletons/StreamerMode.cpp

@@ -0,0 +1,245 @@
+#include "singletons/StreamerMode.hpp"
+
+#include "Application.hpp"
+#include "common/Literals.hpp"
+#include "common/QLogging.hpp"
+#include "providers/twitch/TwitchIrcServer.hpp"
+#include "singletons/Settings.hpp"
+#include "util/PostToThread.hpp"
+
+#include <QAbstractEventDispatcher>
+#include <QDebug>
+#include <QProcess>
+#include <QThread>
+#include <QTimer>
+
+#ifdef Q_OS_WIN
+// clang-format off
+#    include <Windows.h>
+#    include <VersionHelpers.h>
+#    include <WtsApi32.h>
+// clang-format on
+#endif
+
+#include <atomic>
+
+namespace {
+
+using namespace chatterino;
+using namespace literals;
+
+/// Number of timeouts to skip if nothing called `isEnabled` in the meantime.
+constexpr uint8_t SKIPPED_TIMEOUTS = 5;
+
+const QStringList &broadcastingBinaries()
+{
+#ifdef USEWINSDK
+    static QStringList bins = {
+        u"obs.exe"_s,         u"obs64.exe"_s,        u"PRISMLiveStudio.exe"_s,
+        u"XSplit.Core.exe"_s, u"TwitchStudio.exe"_s, u"vMix64.exe"_s,
+    };
+#else
+    static QStringList bins = {
+        u"obs"_s,
+        u"Twitch Studio"_s,
+        u"Streamlabs Desktop"_s,
+    };
+#endif
+    return bins;
+}
+
+bool isBroadcasterSoftwareActive()
+{
+#if defined(Q_OS_LINUX) || defined(Q_OS_MACOS)
+    QProcess p;
+    p.start("pgrep", {"-x", broadcastingBinaries().join("|")},
+            QIODevice::NotOpen);
+
+    if (p.waitForFinished(1000) && p.exitStatus() == QProcess::NormalExit)
+    {
+        return (p.exitCode() == 0);
+    }
+
+    // Fallback to false and showing a warning
+
+    static bool shouldShowWarning = true;
+    if (shouldShowWarning)
+    {
+        shouldShowWarning = false;
+
+        postToThread([] {
+            getApp()->twitch->addGlobalSystemMessage(
+                "Streamer Mode is set to Automatic, but pgrep is missing. "
+                "Install it to fix the issue or set Streamer Mode to "
+                "Enabled or Disabled in the Settings.");
+        });
+    }
+
+    qCWarning(chatterinoStreamerMode) << "pgrep execution timed out!";
+    return false;
+#elif defined(Q_OS_WIN)
+    if (!IsWindowsVistaOrGreater())
+    {
+        return false;
+    }
+
+    WTS_PROCESS_INFO *pProcessInfo = nullptr;
+    DWORD dwProcCount = 0;
+
+    if (WTSEnumerateProcesses(WTS_CURRENT_SERVER_HANDLE, 0, 1, &pProcessInfo,
+                              &dwProcCount))
+    {
+        //Go through all processes retrieved
+        for (DWORD i = 0; i < dwProcCount; i++)
+        {
+            QStringView processName(pProcessInfo[i].pProcessName);
+
+            if (broadcastingBinaries().contains(processName))
+            {
+                WTSFreeMemory(pProcessInfo);
+                return true;
+            }
+        }
+    }
+
+    if (pProcessInfo)
+    {
+        WTSFreeMemory(pProcessInfo);
+    }
+
+#else
+#    warning Unsupported OS: Broadcasting software can't be detected
+#endif
+    return false;
+}
+
+}  // namespace
+
+namespace chatterino {
+
+using namespace std::chrono_literals;
+
+class StreamerModePrivate
+{
+public:
+    StreamerModePrivate(StreamerMode *parent_);
+
+    [[nodiscard]] bool isEnabled() const;
+
+private:
+    void settingChanged(StreamerModeSetting value);
+    void setEnabled(bool enabled);
+
+    void check();
+
+    StreamerMode *parent_;
+    pajlada::Signals::SignalHolder settingConnections_;
+
+    QTimer timer_;
+    QThread thread_;
+
+    std::atomic<bool> enabled_ = false;
+    mutable std::atomic<uint8_t> timeouts_ = 0;
+    StreamerModeSetting currentSetting_ = StreamerModeSetting::Disabled;
+};
+
+StreamerMode::StreamerMode()
+    : private_(new StreamerModePrivate(this))
+{
+}
+
+StreamerMode::~StreamerMode() = default;
+
+void StreamerMode::updated(bool enabled)
+{
+    this->changed(enabled);
+}
+
+bool StreamerMode::isEnabled() const
+{
+    return this->private_->isEnabled();
+}
+
+StreamerModePrivate::StreamerModePrivate(StreamerMode *parent)
+    : parent_(parent)
+{
+    this->thread_.start();
+    this->timer_.moveToThread(&this->thread_);
+    QObject::connect(&this->timer_, &QTimer::timeout, [this] {
+        auto timeouts =
+            this->timeouts_.fetch_add(1, std::memory_order::relaxed);
+        if (timeouts < SKIPPED_TIMEOUTS)
+        {
+            return;
+        }
+        this->timeouts_.store(0, std::memory_order::relaxed);
+        this->check();
+    });
+
+    getSettings()->enableStreamerMode.connect(
+        [this](auto value) {
+            QMetaObject::invokeMethod(this->thread_.eventDispatcher(), [this,
+                                                                        value] {
+                this->settingChanged(static_cast<StreamerModeSetting>(value));
+            });
+        },
+        this->settingConnections_);
+}
+
+bool StreamerModePrivate::isEnabled() const
+{
+    this->timeouts_.store(SKIPPED_TIMEOUTS, std::memory_order::relaxed);
+    return this->enabled_.load(std::memory_order::relaxed);
+}
+
+void StreamerModePrivate::setEnabled(bool enabled)
+{
+    if (enabled == this->enabled_.load(std::memory_order::relaxed))
+    {
+        return;
+    }
+
+    this->enabled_.store(enabled, std::memory_order::relaxed);
+    this->parent_->updated(enabled);
+}
+
+void StreamerModePrivate::settingChanged(StreamerModeSetting value)
+{
+    if (value == this->currentSetting_)
+    {
+        return;
+    }
+    this->currentSetting_ = value;
+
+    switch (this->currentSetting_)
+    {
+        case StreamerModeSetting::Disabled: {
+            this->setEnabled(false);
+            this->timer_.stop();
+        }
+        break;
+        case StreamerModeSetting::Enabled: {
+            this->setEnabled(true);
+            this->timer_.stop();
+        }
+        break;
+        case StreamerModeSetting::DetectStreamingSoftware: {
+            if (!this->timer_.isActive())
+            {
+                this->timer_.start(20s);
+                this->check();
+            }
+        }
+        break;
+        default:
+            assert(false && "Unexpected setting");
+            break;
+    }
+}
+
+void StreamerModePrivate::check()
+{
+    this->setEnabled(isBroadcasterSoftwareActive());
+}
+
+}  // namespace chatterino

src/singletons/StreamerMode.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <QObject>
+
+#include <memory>
+
+namespace chatterino {
+
+class IStreamerMode : public QObject
+{
+    Q_OBJECT
+
+public:
+    IStreamerMode() = default;
+    ~IStreamerMode() override = default;
+    IStreamerMode(const IStreamerMode &) = delete;
+    IStreamerMode(IStreamerMode &&) = delete;
+    IStreamerMode &operator=(const IStreamerMode &) = delete;
+    IStreamerMode &operator=(IStreamerMode &&) = delete;
+
+    [[nodiscard]] virtual bool isEnabled() const = 0;
+
+signals:
+    void changed(bool enabled);
+};
+
+class StreamerModePrivate;
+class StreamerMode : public IStreamerMode
+{
+public:
+    StreamerMode();
+    ~StreamerMode() override;
+    StreamerMode(const StreamerMode &) = delete;
+    StreamerMode(StreamerMode &&) = delete;
+    StreamerMode &operator=(const StreamerMode &) = delete;
+    StreamerMode &operator=(StreamerMode &&) = delete;
+
+    bool isEnabled() const override;
+
+private:
+    void updated(bool enabled);
+
+    std::unique_ptr<StreamerModePrivate> private_;
+
+    friend class StreamerModePrivate;
+};
+
+}  // namespace chatterino

src/singletons/Toasts.cpp

@@ -9,6 +9,7 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Paths.hpp"
 #include "singletons/Settings.hpp"
+#include "singletons/StreamerMode.hpp"
 #include "util/StreamLink.hpp"
 #include "widgets/helper/CommonTexts.hpp"
 
@@ -72,7 +73,7 @@ bool Toasts::isEnabled()
 {
 #ifdef Q_OS_WIN
     return WinToast::isCompatible() && getSettings()->notificationToast &&
-           !(isInStreamerMode() &&
+           !(getIApp()->getStreamerMode()->isEnabled() &&
              getSettings()->streamerModeSuppressLiveNotifications);
 #else
     return false;

src/util/StreamerMode.cpp

@@ -1,146 +0,0 @@
-#include "util/StreamerMode.hpp"
-
-#include "Application.hpp"
-#include "common/QLogging.hpp"
-#include "messages/MessageBuilder.hpp"
-#include "providers/twitch/TwitchIrcServer.hpp"
-#include "singletons/Settings.hpp"
-#include "singletons/WindowManager.hpp"
-#include "widgets/helper/NotebookTab.hpp"
-#include "widgets/Notebook.hpp"
-#include "widgets/splits/Split.hpp"
-#include "widgets/Window.hpp"
-
-#include <QProcess>
-
-#ifdef USEWINSDK
-// clang-format off
-// These imports cannot be ordered alphabetically.
-#    include <Windows.h>
-#    include <VersionHelpers.h>
-#    include <WtsApi32.h>
-// clang-format on
-#    pragma comment(lib, "Wtsapi32.lib")
-#endif
-
-namespace chatterino {
-
-constexpr int cooldownInS = 10;
-
-bool shouldShowWarning = true;
-
-const QStringList &broadcastingBinaries()
-{
-#ifdef USEWINSDK
-    static QStringList bins = {
-        "obs.exe",         "obs64.exe",        "PRISMLiveStudio.exe",
-        "XSplit.Core.exe", "TwitchStudio.exe", "vMix64.exe"};
-#else
-    static QStringList bins = {"obs", "Twitch Studio", "Streamlabs Desktop"};
-#endif
-    return bins;
-}
-
-bool isInStreamerMode()
-{
-    switch (getSettings()->enableStreamerMode.getEnum())
-    {
-        case StreamerModeSetting::Enabled:
-            return true;
-        case StreamerModeSetting::Disabled:
-            return false;
-        case StreamerModeSetting::DetectStreamingSoftware:
-
-#if defined(Q_OS_LINUX) || defined(Q_OS_MACOS)
-
-            static bool cache = false;
-            static QDateTime time = QDateTime();
-
-            if (time.isValid() &&
-                time.addSecs(cooldownInS) > QDateTime::currentDateTime())
-            {
-                return cache;
-            }
-            time = QDateTime::currentDateTime();
-
-            QProcess p;
-            p.start("pgrep", {"-x", broadcastingBinaries().join("|")},
-                    QIODevice::NotOpen);
-
-            if (p.waitForFinished(1000) &&
-                p.exitStatus() == QProcess::NormalExit)
-            {
-                cache = (p.exitCode() == 0);
-                getApp()->streamerModeChanged.invoke();
-                return (p.exitCode() == 0);
-            }
-
-            // Fallback to false and showing a warning
-
-            if (shouldShowWarning)
-            {
-                shouldShowWarning = false;
-
-                getApp()->twitch->addGlobalSystemMessage(
-                    "Streamer Mode is set to Automatic, but pgrep is missing. "
-                    "Install it to fix the issue or set Streamer Mode to "
-                    "Enabled or Disabled in the Settings.");
-            }
-
-            qCWarning(chatterinoStreamerMode) << "pgrep execution timed out!";
-
-            cache = false;
-            getApp()->streamerModeChanged.invoke();
-            return false;
-#endif
-
-#ifdef USEWINSDK
-            if (!IsWindowsVistaOrGreater())
-            {
-                return false;
-            }
-            static bool cache = false;
-            static QDateTime time = QDateTime();
-
-            if (time.isValid() &&
-                time.addSecs(cooldownInS) > QDateTime::currentDateTime())
-            {
-                return cache;
-            }
-            time = QDateTime::currentDateTime();
-
-            WTS_PROCESS_INFO *pWPIs = nullptr;
-            DWORD dwProcCount = 0;
-
-            if (WTSEnumerateProcesses(WTS_CURRENT_SERVER_HANDLE, NULL, 1,
-                                      &pWPIs, &dwProcCount))
-            {
-                //Go through all processes retrieved
-                for (DWORD i = 0; i < dwProcCount; i++)
-                {
-                    QString processName = QString::fromUtf16(
-                        reinterpret_cast<char16_t *>(pWPIs[i].pProcessName));
-
-                    if (broadcastingBinaries().contains(processName))
-                    {
-                        cache = true;
-                        getApp()->streamerModeChanged.invoke();
-                        return true;
-                    }
-                }
-            }
-
-            if (pWPIs)
-            {
-                WTSFreeMemory(pWPIs);
-            }
-
-            cache = false;
-            getApp()->streamerModeChanged.invoke();
-#endif
-            return false;
-    }
-    return false;
-}
-
-}  // namespace chatterino

src/util/StreamerMode.hpp

@@ -1,16 +0,0 @@
-#pragma once
-
-#include <QStringList>
-
-namespace chatterino {
-
-enum StreamerModeSetting {
-    Disabled = 0,
-    Enabled = 1,
-    DetectStreamingSoftware = 2,
-};
-
-const QStringList &broadcastingBinaries();
-bool isInStreamerMode();
-
-}  // namespace chatterino

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]() {
+    QObject::connect(getIApp()->getStreamerMode(), &IStreamerMode::changed,
-        this->updateStreamerModeIcon();
+                     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]() {
+    QObject::connect(getIApp()->getStreamerMode(), &IStreamerMode::changed,
-        this->updateStreamerModeIcon();
+                     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(

tests/src/TwitchMessageBuilder.cpp

@@ -7,6 +7,7 @@
 #include "messages/MessageBuilder.hpp"
 #include "mocks/Channel.hpp"
 #include "mocks/ChatterinoBadges.hpp"
+#include "mocks/DisabledStreamerMode.hpp"
 #include "mocks/EmptyApplication.hpp"
 #include "mocks/TwitchIrcServer.hpp"
 #include "mocks/UserData.hpp"
@@ -86,6 +87,11 @@ public:
         return &this->seventvEmotes;
     }
 
+    IStreamerMode *getStreamerMode() override
+    {
+        return &this->streamerMode;
+    }
+
     AccountController accounts;
     Emotes emotes;
     mock::UserDataController userData;
@@ -97,6 +103,7 @@ public:
     BttvEmotes bttvEmotes;
     FfzEmotes ffzEmotes;
     SeventvEmotes seventvEmotes;
+    DisabledStreamerMode streamerMode;
 };
 
 }  // namespace