Cleaner flashing code (#774)

src/controllers/notifications/NotificationController.cpp

@@ -180,13 +180,7 @@ void NotificationController::getFakeTwitchChannelLiveStatus(
                     getApp()->notifications->playSound();
                 }
                 if (getSettings()->notificationFlashTaskbar) {
-                    if (getSettings()->longAlerts) {
-                        QApplication::alert(
-                            getApp()->windows->getMainWindow().window(), 0);
-                    } else {
-                        QApplication::alert(
-                            getApp()->windows->getMainWindow().window(), 2500);
-                    }
+                    getApp()->windows->sendAlert();
                 }
             }
             return Success;

src/providers/twitch/TwitchChannel.cpp

@@ -408,14 +408,7 @@ void TwitchChannel::setLive(bool newLiveStatus)
                         getApp()->notifications->playSound();
                     }
                     if (getSettings()->notificationFlashTaskbar) {
-                        if (getSettings()->longAlerts) {
-                            QApplication::alert(
-                                getApp()->windows->getMainWindow().window(), 0);
-                        } else {
-                            QApplication::alert(
-                                getApp()->windows->getMainWindow().window(),
-                                2500);
-                        }
+                        getApp()->windows->sendAlert();
                     }
                 }
                 auto live = makeSystemMessage(this->getName() + " is live");

src/providers/twitch/TwitchMessageBuilder.cpp

@@ -788,13 +788,7 @@ void TwitchMessageBuilder::parseHighlights(bool isPastMsg)
             }
 
             if (doAlert) {
-                if (getSettings()->longAlerts) {
-                    QApplication::alert(
-                        getApp()->windows->getMainWindow().window(), 0);
-                } else {
-                    QApplication::alert(
-                        getApp()->windows->getMainWindow().window(), 2500);
-                }
+                getApp()->windows->sendAlert();
             }
         }
     }

src/singletons/WindowManager.cpp

@@ -444,6 +444,16 @@ void WindowManager::save()
     file.flush();
 }
 
+void WindowManager::sendAlert()
+{
+    int flashDuration = 2500;
+    if (getSettings()->longAlerts) {
+        flashDuration = 0;
+    }
+    QApplication::alert(getApp()->windows->getMainWindow().window(),
+                        flashDuration);
+}
+
 void WindowManager::encodeNodeRecusively(SplitNode *node, QJsonObject &obj)
 {
     switch (node->getType()) {

src/singletons/WindowManager.hpp

@@ -61,6 +61,8 @@ public:
 
     pajlada::Signals::NoArgSignal wordFlagsChanged;
 
+    void sendAlert();
+
 private:
     void encodeNodeRecusively(SplitContainer::Node *node, QJsonObject &obj);