Extract TooltipWidget updating into a separate class

src/singletons/TooltipPreviewImage.cpp

@@ -0,0 +1,32 @@
+#include "TooltipPreviewImage.hpp"
+
+#include "Application.hpp"
+#include "singletons/WindowManager.hpp"
+#include "widgets/TooltipWidget.hpp"
+
+namespace chatterino {
+    TooltipPreviewImage &TooltipPreviewImage::getInstance() {
+        static TooltipPreviewImage *instance = new TooltipPreviewImage();
+        return *instance;
+    }
+
+    TooltipPreviewImage::TooltipPreviewImage() {
+        connections_.push_back(getApp()->windows->gifRepaintRequested.connect(
+        [&] {
+            auto tooltipWidget = TooltipWidget::getInstance();
+            if (this->image_ && !tooltipWidget->isHidden()) {
+                auto pixmap = this->image_->pixmap();
+                if (pixmap) {
+                    tooltipWidget->setImage(*pixmap);
+                }
+            } else {
+                tooltipWidget->clearImage();
+            }
+        }));
+
+    }
+
+    void TooltipPreviewImage::setImage(ImagePtr image) {
+        this->image_ = image;
+    }
+}  // namespace chatterino

src/singletons/TooltipPreviewImage.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "messages/Image.hpp"
+
+namespace chatterino {
+    class TooltipPreviewImage {
+    public:
+        static TooltipPreviewImage &getInstance();
+        void setImage(ImagePtr image);
+
+    private:
+        TooltipPreviewImage();
+
+    private:
+        ImagePtr image_ = nullptr;
+        std::vector<pajlada::Signals::ScopedConnection> connections_;
+    };
+}  // namespace chatterino