From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- widget/cocoa/MOZMenuOpeningCoordinator.h | 53 ++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 widget/cocoa/MOZMenuOpeningCoordinator.h (limited to 'widget/cocoa/MOZMenuOpeningCoordinator.h') diff --git a/widget/cocoa/MOZMenuOpeningCoordinator.h b/widget/cocoa/MOZMenuOpeningCoordinator.h new file mode 100644 index 0000000000..55dc2b2d59 --- /dev/null +++ b/widget/cocoa/MOZMenuOpeningCoordinator.h @@ -0,0 +1,53 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef MOZMenuOpeningCoordinator_h +#define MOZMenuOpeningCoordinator_h + +#import + +#include "mozilla/RefPtr.h" + +namespace mozilla { +class Runnable; +} + +/* + * MOZMenuOpeningCoordinator is a workaround for the fact that opening an NSMenu creates a nested + * event loop. This event loop is only exited after the menu is closed. The caller of + * NativeMenuMac::ShowAsContextMenu does not expect ShowAsContextMenu to create a nested event loop, + * so we need to make sure to open the NSMenu asynchronously. + */ + +@interface MOZMenuOpeningCoordinator : NSObject + ++ (instancetype)sharedInstance; + +// Queue aMenu for opening. +// The menu will open from a new event loop tick so that its nested event loop does not block the +// caller. If another menu's nested event loop is currently on the stack, we wait for that nested +// event loop to unwind before opening aMenu. Returns a handle that can be passed to +// cancelAsynchronousOpening:. Can only be called on the main thread. +- (NSInteger)asynchronouslyOpenMenu:(NSMenu*)aMenu + atScreenPosition:(NSPoint)aPosition + forView:(NSView*)aView + withAppearance:(NSAppearance*)aAppearance + asContextMenu:(BOOL)aIsContextMenu; + +// If the menu opening request for aHandle hasn't been processed yet, cancel it. +// Can only be called on the main thread. +- (void)cancelAsynchronousOpening:(NSInteger)aHandle; + +// This field is a terrible workaround for a gnarly problem. +// It should be set to YES by the caller of -[NSMenu cancelTracking(WithoutAnimation)]. +// This field gets checked by the native event loop code in nsAppShell.mm to avoid calling +// -[NSApplication nextEventMatchingMask:...] between the call to cancelTracking and the point at +// which the menu has finished closing and unwound from its tracking event loop, because such calls +// can interfere with menu closing and get us stuck in the menu event loop forever. +@property(class) BOOL needToUnwindForMenuClosing; + +@end + +#endif // MOZMenuOpeningCoordinator_h -- cgit v1.2.3