AuroraMiddleware/qt5base-lts
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wirt: Fix cursor position method.

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The native position is given in device-independent pixels, so multiply
that by the window scale factor. If no cursor is present (e.g. on
Windows Phone), the native API returns SHRT_MIN as the coordinate values.
Catch that and pass Infinity instead in order to enable the cursorless
fall-back behavior in QQuickMenu::popup().

Change-Id: Ibe8ebcdbe257e8df25eea9873e8f4fa647ae1ab2
Task-Id: QTBUG-48265
Reviewed-by: Andrew Knight <andrew.knight@intopalo.com>
This commit is contained in:
Samuel Nevala 2015-11-16 13:21:46 +02:00
parent 4e7c0993d5
commit 4f1234033b
1 changed files with 10 additions and 6 deletions
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16
src/plugins/platforms/winrt/qwinrtcursor.cpp
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@ -161,15 +161,19 @@ void QWinRTCursor::changeCursor(QCursor *windowCursor, QWindow *window)
QPoint QWinRTCursor::pos() const
{
ICoreWindow *coreWindow =
static_cast<QWinRTScreen *>(QGuiApplication::primaryScreen()->handle())->coreWindow();
HRESULT hr;
const QWinRTScreen *screen = static_cast<QWinRTScreen *>(QGuiApplication::primaryScreen()->handle());
Q_ASSERT(screen);
ICoreWindow *coreWindow = screen->coreWindow();
Q_ASSERT(coreWindow);
Point point;
hr = QEventDispatcherWinRT::runOnXamlThread([coreWindow, &point]() {
HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([coreWindow, &point]() {
return coreWindow->get_PointerPosition(&point);
});
RETURN_IF_FAILED("Failed to get native cursor position", QPoint());
return QPoint(point.X, point.Y);
Q_ASSERT_SUCCEEDED(hr);
const QPoint position = QPoint(point.X, point.Y) * screen->scaleFactor();
// If no cursor get_PointerPosition returns SHRT_MIN for x and y
return position.x() == SHRT_MIN && position.y() == SHRT_MIN || FAILED(hr) ? QPointF(Q_INFINITY, Q_INFINITY).toPoint()
: position;
}
QT_END_NAMESPACE