show view immediately for DragEnter

--when the user had activated KWin Edges and the
Show Timer was too high when the View delayed a
lot to show for DragEnter events

app/view/screenedgeghostwindow.cpp

@@ -267,7 +267,12 @@ void ScreenEdgeGhostWindow::setContainsMouse(bool contains)
 
 bool ScreenEdgeGhostWindow::event(QEvent *e)
 {
-    if (e->type() == QEvent::Enter || e->type() == QEvent::DragEnter) {
+    if (e->type() == QEvent::DragEnter) {
+        m_delayedContainsMouse = false;
+        m_delayedMouseTimer.stop();
+        setContainsMouse(true);
+        emit dragEntered();
+    } else if (e->type() == QEvent::Enter || e->type() == QEvent::DragEnter) {
         m_delayedContainsMouse = true;
         if (!m_delayedMouseTimer.isActive()) {
             m_delayedMouseTimer.start();

app/view/screenedgeghostwindow.h

@@ -76,6 +76,7 @@ public:
 
 signals:
     void containsMouseChanged(bool contains);
+    void dragEntered();
 
 protected:
     bool event(QEvent *ev) override;

app/view/visibilitymanager.cpp

@@ -408,7 +408,7 @@ void VisibilityManager::updateGhostWindowState()
                                  && m_latteView->layout()->name() == m_corona->layoutsManager()->currentLayoutName()));
 
         if (inCurrentLayout) {
-            m_wm->setEdgeStateFor(m_edgeGhostWindow, m_isHidden);
+            m_wm->setEdgeStateFor(m_edgeGhostWindow, m_isHidden && !m_dragEnter);
         } else {
             m_wm->setEdgeStateFor(m_edgeGhostWindow, false);
         }
@@ -647,14 +647,16 @@ void VisibilityManager::viewEventManager(QEvent *ev)
         break;
 
     case QEvent::Leave:
+        m_dragEnter = false;
         setContainsMouse(false);
         break;
 
     case QEvent::DragEnter:
         m_dragEnter = true;
 
-        if (m_isHidden)
+        if (m_isHidden) {
             emit mustBeShown();
+        }
 
         break;
 
@@ -722,6 +724,12 @@ void VisibilityManager::createEdgeGhostWindow()
             }
         });
 
+        connect(m_edgeGhostWindow, &ScreenEdgeGhostWindow::dragEntered, this, [&]() {
+            if (m_isHidden) {
+                emit mustBeShown();
+            }
+        });
+
         m_connectionsKWinEdges[0] = connect(m_wm, &WindowSystem::AbstractWindowInterface::currentActivityChanged,
                                             this, [&]() {
             bool inCurrentLayout = (m_corona->layoutsManager()->memoryUsage() == Types::SingleLayout ||