Port tooltips to KToolTipWidget

Use the new KToolTipWidget class (introduced by kwidgetsaddons 5.30) as backend of ToolTipManager.
FileMetaDataToolTip becomes a simple widget used as content of the tooltip.

It is now possible to actually use the metadata widget shown inside the tooltips.
Tooltips are now functional on Wayland as well.

More information about KToolTipWidget in https://git.reviewboard.kde.org/r/129648/

BUG: 352276
BUG: 371223
FIXED-IN: 17.04.0

Closes T4980
Differential Revision: D4449

1 files changed, 8 insertions, 2 deletions

diff --git a/src/views/tooltips/tooltipmanager.h b/src/views/tooltips/tooltipmanager.h
index f6d8b8f26..58fe68763 100644
--- a/src/views/tooltips/tooltipmanager.h
+++ b/src/views/tooltips/tooltipmanager.h
@@ -26,7 +26,9 @@
 #include <KFileItem>
 
 class FileMetaDataToolTip;
+class KToolTipWidget;
 class QTimer;
+class QWindow;
 
 /**
  * @brief Manages the tooltips for an item view.
@@ -47,9 +49,9 @@ public:
      * Triggers the showing of the tooltip for the item \p item
      * where the item has the maximum boundaries of \p itemRect.
      * The tooltip manager takes care that the tooltip is shown
-     * slightly delayed.
+     * slightly delayed and with a proper \p transientParent.
      */
-    void showToolTip(const KFileItem& item, const QRectF& itemRect);
+    void showToolTip(const KFileItem& item, const QRectF& itemRect, QWindow *transientParent);
 
     /**
      * Hides the currently shown tooltip.
@@ -72,7 +74,11 @@ private:
     /// the tooltip content like preview and meta data gets started.
     QTimer* m_contentRetrievalTimer;
 
+    /// Transient parent of the tooltip, mandatory on Wayland.
+    QWindow* m_transientParent;
+
     FileMetaDataToolTip* m_fileMetaDataToolTip;
+    QScopedPointer<KToolTipWidget> m_tooltipWidget;
 
     bool m_toolTipRequested;
     bool m_metaDataRequested;