QWidget::adjustSize() sends a spontaneous event - Mac OS X Cocoa

The windowDidResize notification now differentiates an internally
triggered resize from a user triggered resize.

Task-number: 256269
Reviewed-by: Norwegian Rock Cat

2 files changed, 12 insertions, 2 deletions

diff --git a/src/gui/kernel/qcocoawindowdelegate_mac.mm b/src/gui/kernel/qcocoawindowdelegate_mac.mm
index 9b49efc..3905e21 100644
--- a/src/gui/kernel/qcocoawindowdelegate_mac.mm
+++ b/src/gui/kernel/qcocoawindowdelegate_mac.mm
@@ -132,7 +132,12 @@ static void cleanupCocoaWindowDelegate()
         qwidget->setAttribute(Qt::WA_PendingResizeEvent, true);
     } else {
         QResizeEvent qre(newSize, oldSize);
-        qt_sendSpontaneousEvent(qwidget, &qre);
+        if (qwidget->testAttribute(Qt::WA_PendingResizeEvent)) {
+            qwidget->setAttribute(Qt::WA_PendingResizeEvent, false);
+            QApplication::sendEvent(qwidget, &qre);
+        } else {
+            qt_sendSpontaneousEvent(qwidget, &qre);
+        }
     }
 }
 
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index b9183de..1c71fbd 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -4069,6 +4069,8 @@ void QWidgetPrivate::setGeometry_sys(int x, int y, int w, int h, bool isMove)
             setGeometry_sys_helper(x, y, w, h, isMove);
         }
 #else
+        QSize  olds = q->size();
+        const bool isResize = (olds != QSize(w, h));
         NSWindow *window = qt_mac_window_for(q);
         const QRect &fStrut = frameStrut();
         const QRect frameRect(QPoint(x - fStrut.left(), y - fStrut.top()),
@@ -4076,7 +4078,10 @@ void QWidgetPrivate::setGeometry_sys(int x, int y, int w, int h, bool isMove)
                                     fStrut.top() + fStrut.bottom() + h));
         NSRect cocoaFrameRect = NSMakeRect(frameRect.x(), flipYCoordinate(frameRect.bottom() + 1),
                                            frameRect.width(), frameRect.height());
-
+        // The setFrame call will trigger a 'windowDidResize' notification for the corresponding
+        // NSWindow. The pending flag is set, so that the resize event can be send as non-spontaneous.
+        if (isResize)
+            q->setAttribute(Qt::WA_PendingResizeEvent);
         QPoint currTopLeft = data.crect.topLeft();
         if (currTopLeft.x() == x && currTopLeft.y() == y
                 && cocoaFrameRect.size.width != 0