3rdparty/ext_qt/0030-Android-prevent-out-of-order-events.patch

0001 From c9d3ed9444341a60bb67fc11a182da3e29b13a99 Mon Sep 17 00:00:00 2001
0002 From: Sharaf Zaman <sharafzaz121@gmail.com>
0003 Date: Wed, 6 Jan 2021 12:12:09 +0000
0004 Subject: [PATCH 30/46] Android: prevent out-of-order events
0005
0006 QPlatformWindow::setVisible() flushes internal event queue which then
0007 sends events to widgets out-of-order fashion, which can make some
0008 widgets hidden thus freezing the entire app. We need event flushing for
0009 widget to be rendered properly, but we don't have to send user input
0010 events.
0011 ---
0012  src/plugins/platforms/android/qandroidplatformwindow.cpp | 9 +++++++--
0013  1 file changed, 7 insertions(+), 2 deletions(-)
0014
0015 diff --git a/src/plugins/platforms/android/qandroidplatformwindow.cpp b/src/plugins/platforms/android/qandroidplatformwindow.cpp
0016 index c095f51fa3..61e6f360de 100644
0017 --- a/src/plugins/platforms/android/qandroidplatformwindow.cpp
0018 +++ b/src/plugins/platforms/android/qandroidplatformwindow.cpp
0019 @@ -93,8 +93,13 @@ void QAndroidPlatformWindow::setVisible(bool visible)
0020          platformScreen()->removeWindow(this);
0021
0022      QRect availableGeometry = screen()->availableGeometry();
0023 -    if (geometry().width() > 0 && geometry().height() > 0 && availableGeometry.width() > 0 && availableGeometry.height() > 0)
0024 -        QPlatformWindow::setVisible(visible);
0025 +    if (geometry().width() > 0 && geometry().height() > 0 && availableGeometry.width() > 0
0026 +        && availableGeometry.height() > 0) {
0027 +        QWindowSystemInterface::handleExposeEvent(window(),
0028 +                                                  QRect(QPoint(), geometry().size()));
0029 +        QWindowSystemInterface::flushWindowSystemEvents(
0030 +            QEventLoop::ExcludeUserInputEvents);
0031 +    }
0032  }
0033
0034  void QAndroidPlatformWindow::setWindowState(Qt::WindowStates state)
0035 --
0036 2.33.0
0037