fix(wayland): use system move (#6573)

Reviewed-by: pajlada <rasmus.karlsson@pajlada.com>

src/widgets/BaseWindow.cpp

@@ -612,7 +612,8 @@ void BaseWindow::mousePressEvent(QMouseEvent *event)
                 return recursiveCheckMouseTracking(widget->parentWidget());
             };
 
-            if (!recursiveCheckMouseTracking(widget))
+            if (!recursiveCheckMouseTracking(widget) &&
+                !this->windowHandle()->startSystemMove())
             {
                 this->moving = true;
             }

src/widgets/DraggablePopup.cpp

@@ -3,6 +3,7 @@
 #include "buttons/SvgButton.hpp"
 
 #include <QMouseEvent>
+#include <QWindow>
 
 #include <chrono>
 
@@ -10,31 +11,23 @@ namespace chatterino {
 
 namespace {
 
+constexpr FlagsEnum<BaseWindow::Flags> POPUP_FLAGS{
 #ifdef Q_OS_LINUX
-FlagsEnum<BaseWindow::Flags> popupFlags{
     BaseWindow::Dialog,
+#endif
     BaseWindow::EnableCustomFrame,
 };
-FlagsEnum<BaseWindow::Flags> popupFlagsCloseAutomatically{
-    BaseWindow::Dialog,
-    BaseWindow::EnableCustomFrame,
-};
-#else
-FlagsEnum<BaseWindow::Flags> popupFlags{
-    BaseWindow::EnableCustomFrame,
-};
-FlagsEnum<BaseWindow::Flags> popupFlagsCloseAutomatically{
+constexpr FlagsEnum<BaseWindow::Flags> POPUP_FLAGS_CLOSE_AUTOMATICALLY{
     BaseWindow::EnableCustomFrame,
     BaseWindow::Frameless,
     BaseWindow::FramelessDraggable,
 };
-#endif
 
 }  // namespace
 
 DraggablePopup::DraggablePopup(bool closeAutomatically, QWidget *parent)
     : BaseWindow(
-          (closeAutomatically ? popupFlagsCloseAutomatically : popupFlags) |
+          (closeAutomatically ? POPUP_FLAGS_CLOSE_AUTOMATICALLY : POPUP_FLAGS) |
               BaseWindow::DisableLayoutSave |
               BaseWindow::ClearBuffersOnDpiChange,
           parent)
@@ -72,7 +65,8 @@ DraggablePopup::DraggablePopup(bool closeAutomatically, QWidget *parent)
 
 void DraggablePopup::mousePressEvent(QMouseEvent *event)
 {
-    if (event->button() == Qt::MouseButton::LeftButton)
+    if (event->button() == Qt::MouseButton::LeftButton &&
+        !this->windowHandle()->startSystemMove())
     {
         this->dragTimer_.start(std::chrono::milliseconds(17));
         this->startPosDrag_ = event->pos();

src/widgets/OverlayWindow.cpp

@@ -23,6 +23,7 @@
 #include <QKeySequence>
 #include <QMessageBox>
 #include <QSizeGrip>
+#include <QWindow>
 
 #ifdef Q_OS_WIN
 #    include <Windows.h>
@@ -232,6 +233,10 @@ bool OverlayWindow::eventFilter(QObject * /*object*/, QEvent *event)
     switch (event->type())
     {
         case QEvent::MouseButtonPress: {
+            if (this->windowHandle()->startSystemMove())
+            {
+                return true;
+            }
             auto *evt = dynamic_cast<QMouseEvent *>(event);
             this->moving_ = true;
             this->moveOrigin_ = evt->globalPosition().toPoint();