Ensure all platforms send geometry events if request was not fulfilled

The logic of deciding whether or not to send resize and move events
has been centralized in QGuiApplication. This ensures that if a
window with geometry 100,100+200x200 is moved and resized to e.g.
0,0+100x100, but the window manager denies the request (because the
window would e.g. overlap with system UI), and issues a geometry
update with the original geometry, 100,100+200x200, we will still
treat that as warrant of a move/resize event to the application,
so the application knows that its position and size is as before.

[ChangeLog][Qt Gui][QPA] QWindowSystemInterfacePrivate::handleGeometryChange
no longer takes the old geometry as an argument.

Task-number: QTBUG-57608
Change-Id: I1d471cc7a257fef958bdb1e56184fa95489403a3
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 4 insertions, 11 deletions

diff --git a/src/plugins/platforms/ios/quiview.mm b/src/plugins/platforms/ios/quiview.mm
index a1110839ad..dcdb5ae53f 100644
--- a/src/plugins/platforms/ios/quiview.mm
+++ b/src/plugins/platforms/ios/quiview.mm
@@ -151,19 +151,12 @@
         qWarning() << m_qioswindow->window()
             << "is backed by a UIView that has a transform set. This is not supported.";
 
-    // The original geometry requested by setGeometry() might be different
-    // from what we end up with after applying window constraints.
-    QRect requestedGeometry = m_qioswindow->geometry();
-
-    QRect actualGeometry = QRectF::fromCGRect(self.frame).toRect();
-
-    QRect previousGeometry = requestedGeometry != actualGeometry ?
-            requestedGeometry : qt_window_private(m_qioswindow->window())->geometry;
-
     QWindow *window = m_qioswindow->window();
-    QWindowSystemInterface::handleGeometryChange<QWindowSystemInterface::SynchronousDelivery>(window, actualGeometry, previousGeometry);
+    QRect lastReportedGeometry = qt_window_private(window)->geometry;
+    QRect currentGeometry = QRectF::fromCGRect(self.frame).toRect();
+    QWindowSystemInterface::handleGeometryChange<QWindowSystemInterface::SynchronousDelivery>(window, currentGeometry);
 
-    if (actualGeometry.size() != previousGeometry.size()) {
+    if (currentGeometry.size() != lastReportedGeometry.size()) {
         // Trigger expose event on resize
         [self setNeedsDisplay];