Larger user card drag area (#3508)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>
Co-authored-by: Felanbird <41973452+Felanbird@users.noreply.github.com>

src/widgets/dialogs/UserInfoPopup.hpp

@@ -6,6 +6,8 @@
 #include <pajlada/signals/scoped-connection.hpp>
 #include <pajlada/signals/signal.hpp>
 
+#include <chrono>
+
 class QCheckBox;
 
 namespace chatterino {
@@ -26,6 +28,9 @@ public:
 protected:
     virtual void themeChangedEvent() override;
     virtual void scaleChangedEvent(float scale) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
 
 private:
     void installEvents();
@@ -41,6 +46,19 @@ private:
     QString avatarUrl_;
     ChannelPtr channel_;
 
+    // isMoving_ is set to true if the user is holding the left mouse button down and has moved the mouse a small amount away from the original click point (startPosDrag_)
+    bool isMoving_ = false;
+
+    // startPosDrag_ is the coordinates where the user originally pressed the mouse button down to start dragging
+    QPoint startPosDrag_;
+
+    // requestDragPos_ is the final screen coordinates where the widget should be moved to.
+    // Takes the relative position of where the user originally clicked the widget into account
+    QPoint requestedDragPos_;
+
+    // dragTimer_ is called ~60 times per second once the user has initiated dragging
+    QTimer dragTimer_;
+
     pajlada::Signals::NoArgSignal userStateChanged_;
 
     std::unique_ptr<pajlada::Signals::ScopedConnection> refreshConnection_;