Move the X11 system tray code from widgets into XCB-plugin.

- Add system tray tracker class to XCB plugin and
  provide functionality via invokable slots
  of the native interface.
- Remove XLib-dependency of widgets/utils.
- Reintroduce tracking of tray window destruction
  and recreation, which was removed in the XLib-code
  when porting it from Qt 4 to Qt 5.

This paves the way for implementing the tray icon
completely in terms of QPlatformSystemTrayIcon at some point
later.

Change-Id: Ia04268b0e2919c05874a3e9548930535332897c7
Reviewed-by: Alberto Mardegan <mardy@users.sourceforge.net>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/plugins/platforms/xcb/qxcbnativeinterface.h b/src/plugins/platforms/xcb/qxcbnativeinterface.h
index e27bfa5a46..c671d417e9 100644
--- a/src/plugins/platforms/xcb/qxcbnativeinterface.h
+++ b/src/plugins/platforms/xcb/qxcbnativeinterface.h
@@ -45,6 +45,8 @@
 #include <qpa/qplatformnativeinterface.h>
 #include <xcb/xcb.h>
 
+#include <QtCore/QRect>
+
 QT_BEGIN_NAMESPACE
 
 class QWidget;
@@ -66,7 +68,8 @@ public:
         AppTime,
         AppUserTime,
         ScreenHintStyle,
-        StartupId
+        StartupId,
+        TrayWindow
     };
 
     QXcbNativeInterface();
@@ -95,6 +98,12 @@ public:
     static void *glxContextForContext(QOpenGLContext *context);
 
     Q_INVOKABLE void beep();
+    Q_INVOKABLE bool systemTrayAvailable(const QScreen *screen) const;
+    Q_INVOKABLE bool requestSystemTrayWindowDock(const QWindow *window);
+    Q_INVOKABLE QRect systemTrayWindowGlobalGeometry(const QWindow *window);
+
+signals:
+    void systemTrayWindowChanged(QScreen *screen);
 
 private:
     const QByteArray m_genericEventFilterType;