Compositor: make WlShell reconfigure clients on output geometry change

[ChangeLog][Compositor] Made the wl_shell compositor protocol
implementation re-issue configure requests with updated sizes
when the size or available geometry changes on output used by
a maximized or fullscreen surface.

Change-Id: I5a688afb315523281d6661e2d098423acfb1a297
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/compositor/extensions/qwaylandwlshellintegration_p.h b/src/compositor/extensions/qwaylandwlshellintegration_p.h
index 68c936b1..ff236e63 100644
--- a/src/compositor/extensions/qwaylandwlshellintegration_p.h
+++ b/src/compositor/extensions/qwaylandwlshellintegration_p.h
@@ -80,6 +80,8 @@ private Q_SLOTS:
     void handleSurfaceHasContentChanged();
     void handleRedraw();
     void adjustOffsetForNextFrame(const QPointF &offset);
+    void handleFullScreenSizeChanged();
+    void handleMaximizedSizeChanged();
 
 private:
     enum class GrabberState {
@@ -118,6 +120,14 @@ private:
 
     State currentState = State::Windowed;
     State nextState = State::Windowed;
+
+    struct {
+        QWaylandOutput *output = nullptr;
+        QMetaObject::Connection sizeChangedConnection; // Depending on whether maximized or fullscreen,
+                                                       // will be hooked to geometry-changed or available-
+                                                       // geometry-changed.
+    } nonwindowedState;
+
     QPointF normalPosition;
     QPointF finalPosition;
 };