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Cocoa: Fix popup menus on modal windows

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Previously, we used -popUpMenuPositioningItem:atLocation:inView: but
this turns out not to work with modal windows. This can actually be
reproduced in Cocoa.

Change-Id: I9b750d1f97637f0cc30329d3da3acf5200f62206
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
This commit is contained in:
Gabriel de Dietrich 2013-04-05 20:55:28 +02:00 committed by The Qt Project
parent 11fdd8edcd
commit e5e0ec42bb
1 changed files with 33 additions and 3 deletions
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36
src/plugins/platforms/cocoa/qcocoamenu.mm
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@ -97,7 +97,6 @@ static inline QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *getMenuLoader()
if (![menuItem tag])
return YES;
QCocoaMenuItem* cocoaItem = reinterpret_cast<QCocoaMenuItem *>([menuItem tag]);
return cocoaItem->isEnabled();
}
@ -311,8 +310,39 @@ void QCocoaMenu::showPopup(const QWindow *parentWindow, QPoint pos, const QPlatf
QCocoaWindow *cocoaWindow = parentWindow ? static_cast<QCocoaWindow *>(parentWindow->handle()) : 0;
NSView *view = cocoaWindow ? cocoaWindow->contentView() : nil;
NSMenuItem *nsItem = item ? ((QCocoaMenuItem *)item)->nsItem() : nil;
NSPoint nsPos = NSMakePoint(pos.x(), pos.y());
[m_nativeMenu popUpMenuPositioningItem:nsItem atLocation:nsPos inView:view];
// Ideally, we would call -popUpMenuPositioningItem:atLocation:inView:.
// However, this showed not to work with modal windows where the menu items
// would appear disabled. So, we resort to a more artisanal solution. Note
// that this implies several things.
//
// First, we need to transform 'pos' to window or screen coordinates.
NSPoint nsPos = NSMakePoint(pos.x() - 1, pos.y());
if (view) {
nsPos.y = view.frame.size.height - nsPos.y;
} else if (!QGuiApplication::screens().isEmpty()) {
QScreen *screen = QGuiApplication::screens().at(0);
nsPos.y = screen->availableVirtualSize().height() - nsPos.y;
}
if (nsItem) {
// Then, we need to position the menu ourselves to have the specified item
// at the specified position. This also means that we have to guess the menu
// item's height. (We could use HITheme to get it, but it looks like an overkill
// at this point).
CGFloat itemHeight = m_nativeMenu.font.pointSize == 13 ? 18.0 : 19.0;
nsPos.y += [m_nativeMenu indexOfItem:nsItem] * itemHeight;
}
// Last, we need to synthesize an event.
NSEvent *menuEvent = [NSEvent mouseEventWithType:NSRightMouseDown
location:nsPos
modifierFlags:0
timestamp:0
windowNumber:view ? view.window.windowNumber : 0
context:nil
eventNumber:0
clickCount:1
pressure:1.0];
[NSMenu popUpContextMenu:m_nativeMenu withEvent:menuEvent forView:view];
// The call above blocks, and also swallows any mouse release event,
// so we need to clear any mouse button that triggered the menu popup.