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WinRT: Handle back button as press or release 

Earlier, only the back press was checked for acceptance. By also checking
the release event, this makes the backstepping behavior consistent with
Qt for Android, and fixes the expected behavior found in our demo
applications.

Task-number: QTBUG-35951
Change-Id: I9c2f18816b838d57713ba4dd3624e2f3f1ac40ac
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
bb10
Andrew Knight 2014-04-22 08:51:40 +03:00 committed by The Qt Project
parent 878da15f2c
commit c97edb2579
1 changed files with 4 additions and 6 deletions
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10
src/plugins/platforms/winrt/qwinrtscreen.cpp
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@ -1020,7 +1020,9 @@ HRESULT QWinRTScreen::onOrientationChanged(IInspectable *)
HRESULT QWinRTScreen::onBackButtonPressed(IInspectable *, IBackPressedEventArgs *args)
{
QKeyEvent backPress(QEvent::KeyPress, Qt::Key_Back, Qt::NoModifier);
QKeyEvent backRelease(QEvent::KeyRelease, Qt::Key_Back, Qt::NoModifier);
backPress.setAccepted(false);
backRelease.setAccepted(false);
QObject *receiver = m_visibleWindows.isEmpty()
? static_cast<QObject *>(QGuiApplication::instance())
@ -1028,12 +1030,8 @@ HRESULT QWinRTScreen::onBackButtonPressed(IInspectable *, IBackPressedEventArgs
// If the event is ignored, the app will suspend
QGuiApplication::sendEvent(receiver, &backPress);
if (backPress.isAccepted()) {
args->put_Handled(true);
// If the app accepts the event, send the release for symmetry
QKeyEvent backRelease(QEvent::KeyRelease, Qt::Key_Back, Qt::NoModifier);
QGuiApplication::sendEvent(receiver, &backRelease);
}
QGuiApplication::sendEvent(receiver, &backRelease);
args->put_Handled(backPress.isAccepted() || backRelease.isAccepted());
return S_OK;
}