Exercise native preview clicks and publisher controls escape

tools/chatgui/tests/test_stream_view.cpp

@@ -13,6 +13,7 @@
 #include <QSlider>
 #include <QPainter>
 #include <QWheelEvent>
+#include <QWindow>
 #ifdef HAVE_STREAM_CAPTURE
 #include <QVideoWidget>
 #include <QVideoSink>
@@ -513,6 +514,10 @@ private slots:
         QSignalSpy manage(&grid, &StreamGridWindow::publishRequested);
         QTest::mouseClick(preview, Qt::LeftButton); QTRY_COMPARE(manage.count(), 1);
         QCOMPARE(manage.at(0).at(0).toULongLong(), group); QCOMPARE(grid.focusedSource(), uint64_t(0));
+        auto nativeWindows = preview->findChildren<QWindow*>();
+        DEBUG_INFO(DEBUG_CATEGORY_STREAM, "fixture local preview native_windows=%lld", (long long)nativeWindows.size());
+        QVERIFY(!nativeWindows.isEmpty());
+        QTest::mouseClick(nativeWindows.first(), Qt::LeftButton); QTRY_COMPARE(manage.count(), 2);
         snapshot(true);
         QPointer<StreamPlayerWindow> remote = grid.findChild<StreamPlayerWindow*>();
         QVERIFY(remote); auto* video = remote->findChild<VideoRenderWidget*>(); QVERIFY(video);