fix(thumbnail):任务栏上已打开软件的右键菜单会自动关闭(#I987X1,同主线201908)

plugin-taskbar/ukuitaskbutton.cpp

@@ -469,6 +469,7 @@ void UKUITaskButton::leaveEvent(QEvent *e)
 
 void UKUITaskButton::contextMenuEvent(QContextMenuEvent *e)
 {
+    emit leaveButton(m_windowId.toList(), "", 0, 0);
     QMenu *rightMenu = new QMenu(this);
     rightMenu->setAttribute(Qt::WA_DeleteOnClose);
 

plugin-taskbar/windowThumbnailManager.cpp

@@ -76,6 +76,7 @@ void WindowThumbnailManager::hide(QString groupName)
     Q_UNUSED(groupName);
     if (!m_view->geometry().contains(QCursor::pos())) {
         m_view->setViewVisible(false);
+        m_view->close();
     }
 }