From af683471bde93d1859544e7fd4c0638995b1fd5f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= Date: Wed, 17 Jul 2019 18:09:47 +0200 Subject: macOS: Add QCocoaWindowManager for dealing with window levels Moves and improves the logic for lowering splash screens to a dedicated window manager, which will learn more tricks in patches to come. Change-Id: I8b8fd1dd78fdaf6f106a59c84d2a59254f3539c3 Reviewed-by: Volker Hilsheimer Reviewed-by: Timur Pocheptsov --- src/plugins/platforms/cocoa/cocoa.pro | 2 + src/plugins/platforms/cocoa/qcocoaintegration.mm | 19 ---- src/plugins/platforms/cocoa/qcocoawindowmanager.h | 63 ++++++++++++ src/plugins/platforms/cocoa/qcocoawindowmanager.mm | 108 +++++++++++++++++++++ 4 files changed, 173 insertions(+), 19 deletions(-) create mode 100644 src/plugins/platforms/cocoa/qcocoawindowmanager.h create mode 100644 src/plugins/platforms/cocoa/qcocoawindowmanager.mm diff --git a/src/plugins/platforms/cocoa/cocoa.pro b/src/plugins/platforms/cocoa/cocoa.pro index 083b7c1655..02e00039ae 100644 --- a/src/plugins/platforms/cocoa/cocoa.pro +++ b/src/plugins/platforms/cocoa/cocoa.pro @@ -6,6 +6,7 @@ SOURCES += main.mm \ qcocoatheme.mm \ qcocoabackingstore.mm \ qcocoawindow.mm \ + qcocoawindowmanager.mm \ qnsview.mm \ qnswindow.mm \ qnswindowdelegate.mm \ @@ -41,6 +42,7 @@ HEADERS += qcocoaintegration.h \ qcocoatheme.h \ qcocoabackingstore.h \ qcocoawindow.h \ + qcocoawindowmanager.h \ qnsview.h \ qnswindow.h \ qnswindowdelegate.h \ diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.mm b/src/plugins/platforms/cocoa/qcocoaintegration.mm index dd2d1ba0f1..1eed6b5582 100644 --- a/src/plugins/platforms/cocoa/qcocoaintegration.mm +++ b/src/plugins/platforms/cocoa/qcocoaintegration.mm @@ -217,25 +217,6 @@ QCocoaIntegration::QCocoaIntegration(const QStringList ¶mList) connect(qGuiApp, &QGuiApplication::focusWindowChanged, this, &QCocoaIntegration::focusWindowChanged); - - static auto splashScreenHider = QMacKeyValueObserver(NSApp, @"modalWindow", []{ - const QWindowList allWindows = QGuiApplication::topLevelWindows(); - for (QWindow *window : allWindows) { - if ((window->flags() & Qt::SplashScreen) == Qt::SplashScreen) { - QCocoaWindow *platformWindow = static_cast(window->handle()); - NSWindow *splashWindow = platformWindow->view().window; - if (!splashWindow) - continue; - if (NSApp.modalWindow) { - NSInteger originalLevel = splashWindow.level; - splashWindow.level = NSNormalWindowLevel; - window->setProperty("_q_levelBeforeModalSession", (qlonglong)originalLevel); - } else if (NSInteger originalLevel = window->property("_q_levelBeforeModalSession").toLongLong()) { - splashWindow.level = originalLevel; - } - } - } - }); } QCocoaIntegration::~QCocoaIntegration() diff --git a/src/plugins/platforms/cocoa/qcocoawindowmanager.h b/src/plugins/platforms/cocoa/qcocoawindowmanager.h new file mode 100644 index 0000000000..54f17eeccd --- /dev/null +++ b/src/plugins/platforms/cocoa/qcocoawindowmanager.h @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QCOCOAWINDOWMANAGER_H +#define QCOCOAWINDOWMANAGER_H + +#include + +#include + +QT_BEGIN_NAMESPACE + +class QCocoaWindowManager +{ +public: + static QCocoaWindowManager *instance(); + +private: + QCocoaWindowManager(); + void initialize(); + + void modalSessionChanged(); +}; + +QT_END_NAMESPACE + +#endif // QCOCOAWINDOWMANAGER_H 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 + +#include +#include + +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(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 + -- cgit v1.2.3