Compositor: implement fullscreen for XdgShellV6

This is patterned closely after the existing handling for
maximization.

[ChangeLog][Compositor] Added support for handling xdg-shell
v6 requests to enter/exit fullscreen mode.

Change-Id: I1f3127694d8537d76159b56350f35a4e8aa3e56d
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/compositor/extensions/qwaylandxdgshellv6integration_p.h b/src/compositor/extensions/qwaylandxdgshellv6integration_p.h
index 4ccabfa98..afb4964b9 100644
--- a/src/compositor/extensions/qwaylandxdgshellv6integration_p.h
+++ b/src/compositor/extensions/qwaylandxdgshellv6integration_p.h
@@ -72,6 +72,9 @@ private Q_SLOTS:
     void handleSetMaximized();
     void handleUnsetMaximized();
     void handleMaximizedChanged();
+    void handleSetFullscreen();
+    void handleUnsetFullscreen();
+    void handleFullscreenChanged();
     void handleActivatedChanged();
     void handleSurfaceSizeChanged();
 
@@ -106,7 +109,7 @@ private:
     struct {
         QSize initialWindowSize;
         QPointF initialPosition;
-    } maximizeState;
+    } windowedGeometry;
 };
 
 class XdgPopupV6Integration : public QWaylandQuickShellIntegration