diff options
Diffstat (limited to 'src/plugins/platforms/cocoa/qcocoawindowmanager.mm')
-rw-r--r-- | src/plugins/platforms/cocoa/qcocoawindowmanager.mm | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoawindowmanager.mm b/src/plugins/platforms/cocoa/qcocoawindowmanager.mm new file mode 100644 index 0000000000..879bfaa546 --- /dev/null +++ b/src/plugins/platforms/cocoa/qcocoawindowmanager.mm @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qcocoawindowmanager.h" +#include "qcocoawindow.h" + +#include <QtCore/private/qcore_mac_p.h> + +#include <QtGui/qguiapplication.h> +#include <QtGui/qwindow.h> + +QT_BEGIN_NAMESPACE + +QCocoaWindowManager *QCocoaWindowManager::instance() +{ + static auto *instance = new QCocoaWindowManager; + return instance; +} + +QCocoaWindowManager::QCocoaWindowManager() +{ + if (NSApp) { + initialize(); + } else { + static auto applicationDidFinishLaunching(QMacNotificationObserver(nil, + NSApplicationDidFinishLaunchingNotification, [this] { initialize(); })); + } +} + +void QCocoaWindowManager::initialize() +{ + Q_ASSERT(NSApp); + + // Whenever the modalWindow property of NSApplication changes we have a new + // modal session running. Observing the app modal window instead of our own + // event dispatcher sessions allows us to track session started by native + // APIs as well. We need to check the initial state as well, in case there + // is already a modal session running. + static auto modalSessionObserver(QMacKeyValueObserver( + NSApp, @"modalWindow", [this] { modalSessionChanged(); }, + NSKeyValueObservingOptionInitial | NSKeyValueObservingOptionNew)); +} + +void QCocoaWindowManager::modalSessionChanged() +{ + // Make sure that no window is overlapping the modal window. This can + // happen for e.g. splash screens, which have the NSPopUpMenuWindowLevel. + for (auto *window : QGuiApplication::topLevelWindows()) { + auto *platformWindow = static_cast<QCocoaWindow*>(window->handle()); + if (!platformWindow) + continue; + + auto naturalWindowLevel = platformWindow->windowLevel(window->flags()); + if (naturalWindowLevel > NSModalPanelWindowLevel) { + NSWindow *nativeWindow = platformWindow->nativeWindow(); + if (NSApp.modalWindow) { + // Lower window to that of the modal windows, but no less + nativeWindow.level = NSModalPanelWindowLevel; + [nativeWindow orderBack:nil]; + } else { + // Restore window's natural window level, whatever that was + nativeWindow.level = naturalWindowLevel; + } + } + } +} + +static void initializeWindowManager() { Q_UNUSED(QCocoaWindowManager::instance()); } +Q_CONSTRUCTOR_FUNCTION(initializeWindowManager) + +QT_END_NAMESPACE + |