1	// Copyright (C) 2021 The Qt Company Ltd.
2	// Copyright (C) 2016 Intel Corporation.
3	// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
4
5	#include "qguiapplication.h"
6
7	#include "private/qguiapplication_p.h"
8	#include "private/qabstractfileiconprovider_p.h"
9	#include <qpa/qplatformintegrationfactory_p.h>
10	#include "private/qevent_p.h"
11	#include "private/qeventpoint_p.h"
12	#include "private/qiconloader_p.h"
13	#include "qfont.h"
14	#include "qpointingdevice.h"
15	#include <qpa/qplatformfontdatabase.h>
16	#include <qpa/qplatformwindow.h>
17	#include <qpa/qplatformnativeinterface.h>
18	#include <qpa/qplatformtheme.h>
19	#include <qpa/qplatformintegration.h>
20	#include <qpa/qplatformkeymapper.h>
21
22	#include <QtCore/QAbstractEventDispatcher>
23	#include <QtCore/QFileInfo>
24	#include <QtCore/QStandardPaths>
25	#include <QtCore/QVariant>
26	#include <QtCore/private/qcoreapplication_p.h>
27	#include <QtCore/private/qabstracteventdispatcher_p.h>
28	#include <QtCore/private/qminimalflatset_p.h>
29	#include <QtCore/qmutex.h>
30	#include <QtCore/private/qthread_p.h>
31	#include <QtCore/private/qlocking_p.h>
32	#include <QtCore/private/qflatmap_p.h>
33	#include <QtCore/qdir.h>
34	#include <QtCore/qlibraryinfo.h>
35	#include <QtCore/private/qnumeric_p.h>
36	#include <QtDebug>
37	#if QT_CONFIG(accessibility)
38	#include "qaccessible.h"
39	#endif
40	#include <qpalette.h>
41	#include <qscreen.h>
42	#include "qsessionmanager.h"
43	#include <private/qcolortrclut_p.h>
44	#include <private/qscreen_p.h>
45
46	#include <QtGui/qgenericpluginfactory.h>
47	#include <QtGui/qstylehints.h>
48	#include <QtGui/private/qstylehints_p.h>
49	#include <QtGui/qinputmethod.h>
50	#include <QtGui/qpixmapcache.h>
51	#include <qpa/qplatforminputcontext.h>
52	#include <qpa/qplatforminputcontext_p.h>
53
54	#include <qpa/qwindowsysteminterface.h>
55	#include <qpa/qwindowsysteminterface_p.h>
56	#include "private/qwindow_p.h"
57	#include "private/qicon_p.h"
58	#include "private/qcursor_p.h"
59	#if QT_CONFIG(opengl)
60	# include "private/qopenglcontext_p.h"
61	#endif
62	#include "private/qinputdevicemanager_p.h"
63	#include "private/qinputmethod_p.h"
64	#include "private/qpointingdevice_p.h"
65
66	#include <qpa/qplatformthemefactory_p.h>
67
68	#if QT_CONFIG(draganddrop)
69	#include <qpa/qplatformdrag.h>
70	#include <private/qdnd_p.h>
71	#endif
72
73	#ifndef QT_NO_CURSOR
74	#include <qpa/qplatformcursor.h>
75	#endif
76
77	#include <QtGui/QPixmap>
78
79	#ifndef QT_NO_CLIPBOARD
80	#include <QtGui/QClipboard>
81	#endif
82
83	#if QT_CONFIG(library)
84	#include <QtCore/QLibrary>
85	#endif
86
87	#if defined(Q_OS_MAC)
88	# include "private/qcore_mac_p.h"
89	#elif defined(Q_OS_WIN)
90	# include <QtCore/qt_windows.h>
91	# include <QtCore/QLibraryInfo>
92	#endif // Q_OS_WIN
93
94	#ifdef Q_OS_WASM
95	#include <emscripten.h>
96	#endif
97
98	#if QT_CONFIG(vulkan)
99	#include <private/qvulkandefaultinstance_p.h>
100	#endif
101
102	#include <qtgui_tracepoints_p.h>
103
104	#include <private/qtools_p.h>
105
106	#include <limits>
107
108	QT_BEGIN_NAMESPACE
109
110	Q_LOGGING_CATEGORY(lcPopup, "qt.gui.popup");
111	Q_LOGGING_CATEGORY(lcVirtualKeyboard, "qt.gui.virtualkeyboard");
112
113	using namespace Qt::StringLiterals;
114	using namespace QtMiscUtils;
115
116	// Helper macro for static functions to check on the existence of the application class.
117	#define CHECK_QAPP_INSTANCE(...) \
118	if (Q_LIKELY(QCoreApplication::instance())) { \
119	} else { \
120	qWarning("Must construct a QGuiApplication first."); \
121	return __VA_ARGS__; \
122	}
123
124	Q_CORE_EXPORT void qt_call_post_routines();
125	Q_CONSTINIT Q_GUI_EXPORT bool qt_is_tty_app = false;
126
127	Q_CONSTINIT Qt::MouseButtons QGuiApplicationPrivate::mouse_buttons = Qt::NoButton;
128	Q_CONSTINIT Qt::KeyboardModifiers QGuiApplicationPrivate::modifier_buttons = Qt::NoModifier;
129
130	Q_CONSTINIT QGuiApplicationPrivate::QLastCursorPosition QGuiApplicationPrivate::lastCursorPosition;
131
132	Q_CONSTINIT QWindow *QGuiApplicationPrivate::currentMouseWindow = nullptr;
133
134	Q_CONSTINIT QString QGuiApplicationPrivate::styleOverride;
135
136	Q_CONSTINIT Qt::ApplicationState QGuiApplicationPrivate::applicationState = Qt::ApplicationInactive;
137
138	Q_CONSTINIT Qt::HighDpiScaleFactorRoundingPolicy QGuiApplicationPrivate::highDpiScaleFactorRoundingPolicy =
139	Qt::HighDpiScaleFactorRoundingPolicy::PassThrough;
140
141	Q_CONSTINIT QPointer<QWindow> QGuiApplicationPrivate::currentDragWindow;
142
143	Q_CONSTINIT QList<QGuiApplicationPrivate::TabletPointData> QGuiApplicationPrivate::tabletDevicePoints; // TODO remove
144
145	Q_CONSTINIT QPlatformIntegration *QGuiApplicationPrivate::platform_integration = nullptr;
146	Q_CONSTINIT QPlatformTheme *QGuiApplicationPrivate::platform_theme = nullptr;
147
148	Q_CONSTINIT QList<QObject *> QGuiApplicationPrivate::generic_plugin_list;
149
150	enum ApplicationResourceFlags
151	{
152	ApplicationFontExplicitlySet = 0x2
153	};
154
155	Q_CONSTINIT static unsigned applicationResourceFlags = 0;
156
157	Q_CONSTINIT QIcon *QGuiApplicationPrivate::app_icon = nullptr;
158
159	Q_CONSTINIT QString *QGuiApplicationPrivate::platform_name = nullptr;
160	Q_CONSTINIT QString *QGuiApplicationPrivate::displayName = nullptr;
161	Q_CONSTINIT QString *QGuiApplicationPrivate::desktopFileName = nullptr;
162
163	Q_CONSTINIT QPalette *QGuiApplicationPrivate::app_pal = nullptr; // default application palette
164
165	Q_CONSTINIT Qt::MouseButton QGuiApplicationPrivate::mousePressButton = Qt::NoButton;
166
167	Q_CONSTINIT static int mouseDoubleClickDistance = 0;
168	Q_CONSTINIT static int touchDoubleTapDistance = 0;
169
170	Q_CONSTINIT QWindow *QGuiApplicationPrivate::currentMousePressWindow = nullptr;
171
172	Q_CONSTINIT static Qt::LayoutDirection layout_direction = Qt::LayoutDirectionAuto;
173	Q_CONSTINIT static Qt::LayoutDirection effective_layout_direction = Qt::LeftToRight;
174	Q_CONSTINIT static bool force_reverse = false;
175
176	Q_CONSTINIT QGuiApplicationPrivate *QGuiApplicationPrivate::self = nullptr;
177	Q_CONSTINIT int QGuiApplicationPrivate::m_fakeMouseSourcePointId = -1;
178
179	#ifndef QT_NO_CLIPBOARD
180	Q_CONSTINIT QClipboard *QGuiApplicationPrivate::qt_clipboard = nullptr;
181	#endif
182
183	Q_CONSTINIT QList<QScreen *> QGuiApplicationPrivate::screen_list;
184
185	Q_CONSTINIT QWindowList QGuiApplicationPrivate::window_list;
186	Q_CONSTINIT QWindowList QGuiApplicationPrivate::popup_list;
187	Q_CONSTINIT const QWindow *QGuiApplicationPrivate::active_popup_on_press = nullptr;
188	Q_CONSTINIT QWindow *QGuiApplicationPrivate::focus_window = nullptr;
189
190	Q_CONSTINIT static QBasicMutex applicationFontMutex;
191	Q_CONSTINIT QFont *QGuiApplicationPrivate::app_font = nullptr;
192	Q_CONSTINIT QStyleHints *QGuiApplicationPrivate::styleHints = nullptr;
193	Q_CONSTINIT bool QGuiApplicationPrivate::obey_desktop_settings = true;
194	Q_CONSTINIT bool QGuiApplicationPrivate::popup_closed_on_press = false;
195
196	Q_CONSTINIT QInputDeviceManager *QGuiApplicationPrivate::m_inputDeviceManager = nullptr;
197
198	Q_CONSTINIT qreal QGuiApplicationPrivate::m_maxDevicePixelRatio = 0.0;
199
200	Q_CONSTINIT static qreal fontSmoothingGamma = 1.7;
201
202	Q_CONSTINIT bool QGuiApplicationPrivate::quitOnLastWindowClosed = true;
203
204	extern void qRegisterGuiVariant();
205	#if QT_CONFIG(animation)
206	extern void qRegisterGuiGetInterpolator();
207	#endif
208
209	static bool qt_detectRTLLanguage()
210	{
211	return force_reverse ^
212	(QGuiApplication::tr(s: "QT_LAYOUT_DIRECTION",
213	c: "Translate this string to the string 'LTR' in left-to-right"
214	" languages or to 'RTL' in right-to-left languages (such as Hebrew"
215	" and Arabic) to get proper widget layout.") == "RTL"_L1);
216	}
217
218	static void initFontUnlocked()
219	{
220	if (!QGuiApplicationPrivate::app_font) {
221	if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme())
222	if (const QFont *font = theme->font(type: QPlatformTheme::SystemFont))
223	QGuiApplicationPrivate::app_font = new QFont(*font);
224	}
225	if (!QGuiApplicationPrivate::app_font)
226	QGuiApplicationPrivate::app_font =
227	new QFont(QGuiApplicationPrivate::platformIntegration()->fontDatabase()->defaultFont());
228	}
229
230	static inline void clearFontUnlocked()
231	{
232	delete QGuiApplicationPrivate::app_font;
233	QGuiApplicationPrivate::app_font = nullptr;
234	}
235
236	static void initThemeHints()
237	{
238	mouseDoubleClickDistance = QGuiApplicationPrivate::platformTheme()->themeHint(hint: QPlatformTheme::MouseDoubleClickDistance).toInt();
239	touchDoubleTapDistance = QGuiApplicationPrivate::platformTheme()->themeHint(hint: QPlatformTheme::TouchDoubleTapDistance).toInt();
240	}
241
242	static bool checkNeedPortalSupport()
243	{
244	#if QT_CONFIG(dbus)
245	return QFileInfo::exists(file: "/.flatpak-info"_L1) || qEnvironmentVariableIsSet(varName: "SNAP");
246	#else
247	return false;
248	#endif // QT_CONFIG(dbus)
249	}
250
251	// Using aggregate initialization instead of ctor so we can have a POD global static
252	#define Q_WINDOW_GEOMETRY_SPECIFICATION_INITIALIZER { Qt::TopLeftCorner, -1, -1, -1, -1 }
253
254	// Geometry specification for top level windows following the convention of the
255	// -geometry command line arguments in X11 (see XParseGeometry).
256	struct QWindowGeometrySpecification
257	{
258	static QWindowGeometrySpecification fromArgument(const QByteArray &a);
259	void applyTo(QWindow *window) const;
260
261	Qt::Corner corner;
262	int xOffset;
263	int yOffset;
264	int width;
265	int height;
266	};
267
268	// Parse a token of a X11 geometry specification "200x100+10-20".
269	static inline int nextGeometryToken(const QByteArray &a, int &pos, char *op)
270	{
271	*op = 0;
272	const qsizetype size = a.size();
273	if (pos >= size)
274	return -1;
275
276	*op = a.at(i: pos);
277	if (*op == '+' || *op == '-' || *op == 'x')
278	pos++;
279	else if (isAsciiDigit(c: *op))
280	*op = 'x'; // If it starts with a digit, it is supposed to be a width specification.
281	else
282	return -1;
283
284	const int numberPos = pos;
285	for ( ; pos < size && isAsciiDigit(c: a.at(i: pos)); ++pos) ;
286
287	bool ok;
288	const int result = a.mid(index: numberPos, len: pos - numberPos).toInt(ok: &ok);
289	return ok ? result : -1;
290	}
291
292	QWindowGeometrySpecification QWindowGeometrySpecification::fromArgument(const QByteArray &a)
293	{
294	QWindowGeometrySpecification result = Q_WINDOW_GEOMETRY_SPECIFICATION_INITIALIZER;
295	int pos = 0;
296	for (int i = 0; i < 4; ++i) {
297	char op;
298	const int value = nextGeometryToken(a, pos, op: &op);
299	if (value < 0)
300	break;
301	switch (op) {
302	case 'x':
303	(result.width >= 0 ? result.height : result.width) = value;
304	break;
305	case '+':
306	case '-':
307	if (result.xOffset >= 0) {
308	result.yOffset = value;
309	if (op == '-')
310	result.corner = result.corner == Qt::TopRightCorner ? Qt::BottomRightCorner : Qt::BottomLeftCorner;
311	} else {
312	result.xOffset = value;
313	if (op == '-')
314	result.corner = Qt::TopRightCorner;
315	}
316	}
317	}
318	return result;
319	}
320
321	void QWindowGeometrySpecification::applyTo(QWindow *window) const
322	{
323	QRect windowGeometry = window->frameGeometry();
324	QSize size = windowGeometry.size();
325	if (width >= 0 || height >= 0) {
326	const QSize windowMinimumSize = window->minimumSize();
327	const QSize windowMaximumSize = window->maximumSize();
328	if (width >= 0)
329	size.setWidth(qBound(min: windowMinimumSize.width(), val: width, max: windowMaximumSize.width()));
330	if (height >= 0)
331	size.setHeight(qBound(min: windowMinimumSize.height(), val: height, max: windowMaximumSize.height()));
332	window->resize(newSize: size);
333	}
334	if (xOffset >= 0 || yOffset >= 0) {
335	const QRect availableGeometry = window->screen()->virtualGeometry();
336	QPoint topLeft = windowGeometry.topLeft();
337	if (xOffset >= 0) {
338	topLeft.setX(corner == Qt::TopLeftCorner || corner == Qt::BottomLeftCorner ?
339	xOffset :
340	qMax(a: availableGeometry.right() - size.width() - xOffset, b: availableGeometry.left()));
341	}
342	if (yOffset >= 0) {
343	topLeft.setY(corner == Qt::TopLeftCorner || corner == Qt::TopRightCorner ?
344	yOffset :
345	qMax(a: availableGeometry.bottom() - size.height() - yOffset, b: availableGeometry.top()));
346	}
347	window->setFramePosition(topLeft);
348	}
349	}
350
351	static QWindowGeometrySpecification windowGeometrySpecification = Q_WINDOW_GEOMETRY_SPECIFICATION_INITIALIZER;
352
353	/*!
354	\macro qGuiApp
355	\relates QGuiApplication
356
357	A global pointer referring to the unique application object.
358	Only valid for use when that object is a QGuiApplication.
359
360	\sa QCoreApplication::instance(), qApp
361	*/
362
363	/*!
364	\class QGuiApplication
365	\brief The QGuiApplication class manages the GUI application's control
366	flow and main settings.
367
368	\inmodule QtGui
369	\since 5.0
370
371	QGuiApplication contains the main event loop, where all events from the window
372	system and other sources are processed and dispatched. It also handles the
373	application's initialization and finalization, and provides session management.
374	In addition, QGuiApplication handles most of the system-wide and application-wide
375	settings.
376
377	For any GUI application using Qt, there is precisely \b one QGuiApplication
378	object no matter whether the application has 0, 1, 2 or more windows at
379	any given time. For non-GUI Qt applications, use QCoreApplication instead,
380	as it does not depend on the Qt GUI module. For QWidget based Qt applications,
381	use QApplication instead, as it provides some functionality needed for creating
382	QWidget instances.
383
384	The QGuiApplication object is accessible through the instance() function, which
385	returns a pointer equivalent to the global \l qApp pointer.
386
387	QGuiApplication's main areas of responsibility are:
388	\list
389	\li It initializes the application with the user's desktop settings,
390	such as palette(), font() and styleHints(). It keeps
391	track of these properties in case the user changes the desktop
392	globally, for example, through some kind of control panel.
393
394	\li It performs event handling, meaning that it receives events
395	from the underlying window system and dispatches them to the
396	relevant widgets. You can send your own events to windows by
397	using sendEvent() and postEvent().
398
399	\li It parses common command line arguments and sets its internal
400	state accordingly. See the \l{QGuiApplication::QGuiApplication()}
401	{constructor documentation} below for more details.
402
403	\li It provides localization of strings that are visible to the
404	user via translate().
405
406	\li It provides some magical objects like the clipboard().
407
408	\li It knows about the application's windows. You can ask which
409	window is at a certain position using topLevelAt(), get a list of
410	topLevelWindows(), etc.
411
412	\li It manages the application's mouse cursor handling, see
413	setOverrideCursor()
414
415	\li It provides support for sophisticated \l{Session Management}
416	{session management}. This makes it possible for applications
417	to terminate gracefully when the user logs out, to cancel a
418	shutdown process if termination isn't possible and even to
419	preserve the entire application's state for a future session.
420	See isSessionRestored(), sessionId() and commitDataRequest() and
421	saveStateRequest() for details.
422	\endlist
423
424	Since the QGuiApplication object does so much initialization, it \e{must} be
425	created before any other objects related to the user interface are created.
426	QGuiApplication also deals with common command line arguments. Hence, it is
427	usually a good idea to create it \e before any interpretation or
428	modification of \c argv is done in the application itself.
429
430	\table
431	\header
432	\li{2,1} Groups of functions
433
434	\row
435	\li System settings
436	\li desktopSettingsAware(),
437	setDesktopSettingsAware(),
438	styleHints(),
439	palette(),
440	setPalette(),
441	font(),
442	setFont().
443
444	\row
445	\li Event handling
446	\li exec(),
447	processEvents(),
448	exit(),
449	quit().
450	sendEvent(),
451	postEvent(),
452	sendPostedEvents(),
453	removePostedEvents(),
454	notify().
455
456	\row
457	\li Windows
458	\li allWindows(),
459	topLevelWindows(),
460	focusWindow(),
461	clipboard(),
462	topLevelAt().
463
464	\row
465	\li Advanced cursor handling
466	\li overrideCursor(),
467	setOverrideCursor(),
468	restoreOverrideCursor().
469
470	\row
471	\li Session management
472	\li isSessionRestored(),
473	sessionId(),
474	commitDataRequest(),
475	saveStateRequest().
476
477	\row
478	\li Miscellaneous
479	\li startingUp(),
480	closingDown().
481	\endtable
482
483	\sa QCoreApplication, QAbstractEventDispatcher, QEventLoop
484	*/
485
486	/*!
487	Initializes the window system and constructs an application object with
488	\a argc command line arguments in \a argv.
489
490	\warning The data referred to by \a argc and \a argv must stay valid for
491	the entire lifetime of the QGuiApplication object. In addition, \a argc must
492	be greater than zero and \a argv must contain at least one valid character
493	string.
494
495	The global \c qApp pointer refers to this application object. Only one
496	application object should be created.
497
498	This application object must be constructed before any \l{QPaintDevice}
499	{paint devices} (including pixmaps, bitmaps etc.).
500
501	\note \a argc and \a argv might be changed as Qt removes command line
502	arguments that it recognizes.
503
504	\section1 Supported Command Line Options
505
506	All Qt programs automatically support a set of command-line options that
507	allow modifying the way Qt will interact with the windowing system. Some of
508	the options are also accessible via environment variables, which are the
509	preferred form if the application can launch GUI sub-processes or other
510	applications (environment variables will be inherited by child processes).
511	When in doubt, use the environment variables.
512
513	The options currently supported are the following:
514	\list
515
516	\li \c{-platform} \e {platformName[:options]}, specifies the
517	\l{Qt Platform Abstraction} (QPA) plugin.
518
519	Overrides the \c QT_QPA_PLATFORM environment variable.
520	\li \c{-platformpluginpath} \e path, specifies the path to platform
521	plugins.
522
523	Overrides the \c QT_QPA_PLATFORM_PLUGIN_PATH environment variable.
524
525	\li \c{-platformtheme} \e platformTheme, specifies the platform theme.
526
527	Overrides the \c QT_QPA_PLATFORMTHEME environment variable.
528
529	\li \c{-plugin} \e plugin, specifies additional plugins to load. The argument
530	may appear multiple times.
531
532	Concatenated with the plugins in the \c QT_QPA_GENERIC_PLUGINS environment
533	variable.
534
535	\li \c{-qmljsdebugger=}, activates the QML/JS debugger with a specified port.
536	The value must be of format \c{port:1234}\e{[,block]}, where
537	\e block is optional
538	and will make the application wait until a debugger connects to it.
539	\li \c {-qwindowgeometry} \e geometry, specifies window geometry for
540	the main window using the X11-syntax. For example:
541	\c {-qwindowgeometry 100x100+50+50}
542	\li \c {-qwindowicon}, sets the default window icon
543	\li \c {-qwindowtitle}, sets the title of the first window
544	\li \c{-reverse}, sets the application's layout direction to
545	Qt::RightToLeft. This option is intended to aid debugging and should
546	not be used in production. The default value is automatically detected
547	from the user's locale (see also QLocale::textDirection()).
548	\li \c{-session} \e session, restores the application from an earlier
549	\l{Session Management}{session}.
550	\endlist
551
552	The following standard command line options are available for X11:
553
554	\list
555	\li \c {-display} \e {hostname:screen_number}, switches displays on X11.
556
557	Overrides the \c DISPLAY environment variable.
558	\li \c {-geometry} \e geometry, same as \c {-qwindowgeometry}.
559	\endlist
560
561	\section1 Platform-Specific Arguments
562
563	You can specify platform-specific arguments for the \c{-platform} option.
564	Place them after the platform plugin name following a colon as a
565	comma-separated list. For example,
566	\c{-platform windows:dialogs=xp,fontengine=freetype}.
567
568	The following parameters are available for \c {-platform windows}:
569
570	\list
571	\li \c {altgr}, detect the key \c {AltGr} found on some keyboards as
572	Qt::GroupSwitchModifier (since Qt 5.12).
573	\li \c {darkmode=[0|1|2]} controls how Qt responds to the activation
574	of the \e{Dark Mode for applications} introduced in Windows 10
575	1903 (since Qt 5.15).
576
577	A value of 0 disables dark mode support.
578
579	A value of 1 causes Qt to switch the window borders to black
580	when \e{Dark Mode for applications} is activated and no High
581	Contrast Theme is in use. This is intended for applications
582	that implement their own theming.
583
584	A value of 2 will in addition cause the Windows Vista style to
585	be deactivated and switch to the Windows style using a
586	simplified palette in dark mode. This is currently
587	experimental pending the introduction of new style that
588	properly adapts to dark mode.
589
590	As of Qt 6.5, the default value is 2; to disable dark mode
591	support, set the value to 0 or 1.
592
593	\li \c {dialogs=[xp|none]}, \c xp uses XP-style native dialogs and
594	\c none disables them.
595
596	\li \c {fontengine=freetype}, uses the FreeType font engine.
597	\li \c {fontengine=gdi}, uses the legacy GDI-based
598	font database and defaults to using the GDI font
599	engine (which is otherwise only used for some font types
600	or font properties.) (Since Qt 6.8).
601	\li \c {menus=[native|none]}, controls the use of native menus.
602
603	Native menus are implemented using Win32 API and are simpler than
604	QMenu-based menus in for example that they do allow for placing
605	widgets on them or changing properties like fonts and do not
606	provide hover signals. They are mainly intended for Qt Quick.
607	By default, they will be used if the application is not an
608	instance of QApplication or for Qt Quick Controls 2
609	applications (since Qt 5.10).
610
611	\li \c {nocolorfonts} Turn off DirectWrite Color fonts
612	(since Qt 5.8).
613
614	\li \c {nodirectwrite} Turn off DirectWrite fonts (since Qt 5.8). This implicitly
615	also selects the GDI font engine.
616
617	\li \c {nomousefromtouch} Ignores mouse events synthesized
618	from touch events by the operating system.
619
620	\li \c {nowmpointer} Switches from Pointer Input Messages handling
621	to legacy mouse handling (since Qt 5.12).
622	\li \c {reverse} Activates Right-to-left mode (experimental).
623	Windows title bars will be shown accordingly in Right-to-left locales
624	(since Qt 5.13).
625	\li \c {tabletabsoluterange=<value>} Sets a value for mouse mode detection
626	of WinTab tablets (Legacy, since Qt 5.3).
627	\endlist
628
629	The following parameter is available for \c {-platform cocoa} (on macOS):
630
631	\list
632	\li \c {fontengine=freetype}, uses the FreeType font engine.
633	\endlist
634
635	For more information about the platform-specific arguments available for
636	embedded Linux platforms, see \l{Qt for Embedded Linux}.
637
638	\sa arguments() QGuiApplication::platformName
639	*/
640	#ifdef Q_QDOC
641	QGuiApplication::QGuiApplication(int &argc, char **argv)
642	#else
643	QGuiApplication::QGuiApplication(int &argc, char **argv, int)
644	#endif
645	: QCoreApplication(*new QGuiApplicationPrivate(argc, argv))
646	{
647	d_func()->init();
648
649	QCoreApplicationPrivate::eventDispatcher->startingUp();
650	}
651
652	/*!
653	\internal
654	*/
655	QGuiApplication::QGuiApplication(QGuiApplicationPrivate &p)
656	: QCoreApplication(p)
657	{
658	}
659
660	/*!
661	Destructs the application.
662	*/
663	QGuiApplication::~QGuiApplication()
664	{
665	Q_D(QGuiApplication);
666
667	qt_call_post_routines();
668
669	d->eventDispatcher->closingDown();
670	d->eventDispatcher = nullptr;
671
672	#ifndef QT_NO_CLIPBOARD
673	delete QGuiApplicationPrivate::qt_clipboard;
674	QGuiApplicationPrivate::qt_clipboard = nullptr;
675	#endif
676
677	#ifndef QT_NO_SESSIONMANAGER
678	delete d->session_manager;
679	d->session_manager = nullptr;
680	#endif //QT_NO_SESSIONMANAGER
681
682	QGuiApplicationPrivate::clearPalette();
683	QFontDatabase::removeAllApplicationFonts();
684
685	#ifndef QT_NO_CURSOR
686	d->cursor_list.clear();
687	#endif
688
689	delete QGuiApplicationPrivate::app_icon;
690	QGuiApplicationPrivate::app_icon = nullptr;
691	delete QGuiApplicationPrivate::platform_name;
692	QGuiApplicationPrivate::platform_name = nullptr;
693	delete QGuiApplicationPrivate::displayName;
694	QGuiApplicationPrivate::displayName = nullptr;
695	delete QGuiApplicationPrivate::m_inputDeviceManager;
696	QGuiApplicationPrivate::m_inputDeviceManager = nullptr;
697	delete QGuiApplicationPrivate::desktopFileName;
698	QGuiApplicationPrivate::desktopFileName = nullptr;
699	QGuiApplicationPrivate::mouse_buttons = Qt::NoButton;
700	QGuiApplicationPrivate::modifier_buttons = Qt::NoModifier;
701	QGuiApplicationPrivate::lastCursorPosition.reset();
702	QGuiApplicationPrivate::currentMousePressWindow = QGuiApplicationPrivate::currentMouseWindow = nullptr;
703	QGuiApplicationPrivate::applicationState = Qt::ApplicationInactive;
704	QGuiApplicationPrivate::highDpiScaleFactorRoundingPolicy = Qt::HighDpiScaleFactorRoundingPolicy::PassThrough;
705	QGuiApplicationPrivate::currentDragWindow = nullptr;
706	QGuiApplicationPrivate::tabletDevicePoints.clear();
707	}
708
709	QGuiApplicationPrivate::QGuiApplicationPrivate(int &argc, char **argv)
710	: QCoreApplicationPrivate(argc, argv),
711	inputMethod(nullptr),
712	lastTouchType(QEvent::TouchEnd),
713	ownGlobalShareContext(false)
714	{
715	self = this;
716	application_type = QCoreApplicationPrivate::Gui;
717	#ifndef QT_NO_SESSIONMANAGER
718	is_session_restored = false;
719	is_saving_session = false;
720	#endif
721	}
722
723	/*!
724	\property QGuiApplication::applicationDisplayName
725	\brief the user-visible name of this application
726	\since 5.0
727
728	This name is shown to the user, for instance in window titles.
729	It can be translated, if necessary.
730
731	If not set, the application display name defaults to the application name.
732
733	\sa applicationName
734	*/
735	void QGuiApplication::setApplicationDisplayName(const QString &name)
736	{
737	if (!QGuiApplicationPrivate::displayName) {
738	QGuiApplicationPrivate::displayName = new QString(name);
739	if (qGuiApp) {
740	disconnect(qGuiApp, signal: &QGuiApplication::applicationNameChanged,
741	qGuiApp, slot: &QGuiApplication::applicationDisplayNameChanged);
742
743	if (*QGuiApplicationPrivate::displayName != applicationName())
744	emit qGuiApp->applicationDisplayNameChanged();
745	}
746	} else if (name != *QGuiApplicationPrivate::displayName) {
747	*QGuiApplicationPrivate::displayName = name;
748	if (qGuiApp)
749	emit qGuiApp->applicationDisplayNameChanged();
750	}
751	}
752
753	QString QGuiApplication::applicationDisplayName()
754	{
755	return QGuiApplicationPrivate::displayName ? *QGuiApplicationPrivate::displayName : applicationName();
756	}
757
758	/*!
759	Sets the application's badge to \a number.
760
761	Useful for providing feedback to the user about the number
762	of unread messages or similar.
763
764	The badge will be overlaid on the application's icon in the Dock
765	on \macos, the home screen icon on iOS, or the task bar on Windows
766	and Linux.
767
768	If the number is outside the range supported by the platform, the
769	number will be clamped to the supported range. If the number does
770	not fit within the badge, the number may be visually elided.
771
772	Setting the number to 0 will clear the badge.
773
774	\since 6.5
775	\sa applicationName
776	*/
777	void QGuiApplication::setBadgeNumber(qint64 number)
778	{
779	QGuiApplicationPrivate::platformIntegration()->setApplicationBadge(number);
780	}
781
782	/*!
783	\property QGuiApplication::desktopFileName
784	\brief the base name of the desktop entry for this application
785	\since 5.7
786
787	This is the file name, without the full path or the trailing ".desktop"
788	extension of the desktop entry that represents this application
789	according to the freedesktop desktop entry specification.
790
791	This property gives a precise indication of what desktop entry represents
792	the application and it is needed by the windowing system to retrieve
793	such information without resorting to imprecise heuristics.
794
795	The latest version of the freedesktop desktop entry specification can be obtained
796	\l{http://standards.freedesktop.org/desktop-entry-spec/latest/}{here}.
797	*/
798	void QGuiApplication::setDesktopFileName(const QString &name)
799	{
800	if (!QGuiApplicationPrivate::desktopFileName)
801	QGuiApplicationPrivate::desktopFileName = new QString;
802	*QGuiApplicationPrivate::desktopFileName = name;
803	if (name.endsWith(s: QLatin1String(".desktop"))) { // ### Qt 7: remove
804	const QString filePath = QStandardPaths::locate(type: QStandardPaths::ApplicationsLocation, fileName: name);
805	if (!filePath.isEmpty()) {
806	qWarning(msg: "QGuiApplication::setDesktopFileName: the specified desktop file name "
807	"ends with .desktop. For compatibility reasons, the .desktop suffix will "
808	"be removed. Please specify a desktop file name without .desktop suffix");
809	(*QGuiApplicationPrivate::desktopFileName).chop(n: 8);
810	}
811	}
812	}
813
814	QString QGuiApplication::desktopFileName()
815	{
816	return QGuiApplicationPrivate::desktopFileName ? *QGuiApplicationPrivate::desktopFileName : QString();
817	}
818
819	/*!
820	Returns the most recently shown modal window. If no modal windows are
821	visible, this function returns zero.
822
823	A modal window is a window which has its
824	\l{QWindow::modality}{modality} property set to Qt::WindowModal
825	or Qt::ApplicationModal. A modal window must be closed before the user can
826	continue with other parts of the program.
827
828	Modal window are organized in a stack. This function returns the modal
829	window at the top of the stack.
830
831	\sa Qt::WindowModality, QWindow::setModality()
832	*/
833	QWindow *QGuiApplication::modalWindow()
834	{
835	CHECK_QAPP_INSTANCE(nullptr)
836	if (QGuiApplicationPrivate::self->modalWindowList.isEmpty())
837	return nullptr;
838	return QGuiApplicationPrivate::self->modalWindowList.constFirst();
839	}
840
841	static void updateBlockedStatusRecursion(QWindow *window, bool shouldBeBlocked)
842	{
843	QWindowPrivate *p = qt_window_private(window);
844	if (p->blockedByModalWindow != shouldBeBlocked) {
845	p->blockedByModalWindow = shouldBeBlocked;
846	QEvent e(shouldBeBlocked ? QEvent::WindowBlocked : QEvent::WindowUnblocked);
847	QGuiApplication::sendEvent(receiver: window, event: &e);
848	for (QObject *c : window->children()) {
849	if (c->isWindowType())
850	updateBlockedStatusRecursion(window: static_cast<QWindow *>(c), shouldBeBlocked);
851	}
852	}
853	}
854
855	void QGuiApplicationPrivate::updateBlockedStatus(QWindow *window)
856	{
857	bool shouldBeBlocked = false;
858	const bool popupType = (window->type() == Qt::ToolTip) || (window->type() == Qt::Popup);
859	if (!popupType && !self->modalWindowList.isEmpty())
860	shouldBeBlocked = self->isWindowBlocked(window);
861	updateBlockedStatusRecursion(window, shouldBeBlocked);
862	}
863
864	// Return whether the window needs to be notified about window blocked events.
865	// As opposed to QGuiApplication::topLevelWindows(), embedded windows are
866	// included in this list (QTBUG-18099).
867	static inline bool needsWindowBlockedEvent(const QWindow *w)
868	{
869	return w->isTopLevel() && w->type() != Qt::Desktop;
870	}
871
872	void QGuiApplicationPrivate::showModalWindow(QWindow *modal)
873	{
874	self->modalWindowList.prepend(t: modal);
875
876	// Send leave for currently entered window if it should be blocked
877	if (currentMouseWindow && !QWindowPrivate::get(window: currentMouseWindow)->isPopup()) {
878	bool shouldBeBlocked = self->isWindowBlocked(window: currentMouseWindow);
879	if (shouldBeBlocked) {
880	// Remove the new window from modalWindowList temporarily so leave can go through
881	self->modalWindowList.removeFirst();
882	QEvent e(QEvent::Leave);
883	QGuiApplication::sendEvent(receiver: currentMouseWindow, event: &e);
884	currentMouseWindow = nullptr;
885	self->modalWindowList.prepend(t: modal);
886	}
887	}
888
889	for (QWindow *window : std::as_const(t&: QGuiApplicationPrivate::window_list)) {
890	if (needsWindowBlockedEvent(w: window) && !window->d_func()->blockedByModalWindow)
891	updateBlockedStatus(window);
892	}
893
894	updateBlockedStatus(window: modal);
895	}
896
897	void QGuiApplicationPrivate::hideModalWindow(QWindow *window)
898	{
899	self->modalWindowList.removeAll(t: window);
900
901	for (QWindow *window : std::as_const(t&: QGuiApplicationPrivate::window_list)) {
902	if (needsWindowBlockedEvent(w: window) && window->d_func()->blockedByModalWindow)
903	updateBlockedStatus(window);
904	}
905	}
906
907	Qt::WindowModality QGuiApplicationPrivate::defaultModality() const
908	{
909	return Qt::NonModal;
910	}
911
912	bool QGuiApplicationPrivate::windowNeverBlocked(QWindow *window) const
913	{
914	Q_UNUSED(window);
915	return false;
916	}
917
918	/*
919	Returns \c true if \a window is blocked by a modal window. If \a
920	blockingWindow is non-zero, *blockingWindow will be set to the blocking
921	window (or to zero if \a window is not blocked).
922	*/
923	bool QGuiApplicationPrivate::isWindowBlocked(QWindow *window, QWindow **blockingWindow) const
924	{
925	Q_ASSERT_X(window, Q_FUNC_INFO, "The window must not be null");
926
927	QWindow *unused = nullptr;
928	if (!blockingWindow)
929	blockingWindow = &unused;
930	*blockingWindow = nullptr;
931
932	if (modalWindowList.isEmpty() || windowNeverBlocked(window))
933	return false;
934
935	for (int i = 0; i < modalWindowList.size(); ++i) {
936	QWindow *modalWindow = modalWindowList.at(i);
937
938	// A window is not blocked by another modal window if the two are
939	// the same, or if the window is a child of the modal window.
940	if (window == modalWindow || modalWindow->isAncestorOf(child: window, mode: QWindow::IncludeTransients))
941	return false;
942
943	switch (modalWindow->modality() == Qt::NonModal ? defaultModality()
944	: modalWindow->modality()) {
945	case Qt::ApplicationModal:
946	*blockingWindow = modalWindow;
947	return true;
948	case Qt::WindowModal: {
949	// Find the nearest ancestor of window which is also an ancestor of modal window to
950	// determine if the modal window blocks the window.
951	auto *current = window;
952	do {
953	if (current->isAncestorOf(child: modalWindow, mode: QWindow::IncludeTransients)) {
954	*blockingWindow = modalWindow;
955	return true;
956	}
957	current = current->parent(mode: QWindow::IncludeTransients);
958	} while (current);
959	break;
960	}
961	default:
962	Q_ASSERT_X(false, "QGuiApplication", "internal error, a modal widget cannot be modeless");
963	break;
964	}
965	}
966	return false;
967	}
968
969	QWindow *QGuiApplicationPrivate::activePopupWindow()
970	{
971	// might be the same as focusWindow() if that's a popup
972	return QGuiApplicationPrivate::popup_list.isEmpty() ?
973	nullptr : QGuiApplicationPrivate::popup_list.constLast();
974	}
975
976	void QGuiApplicationPrivate::activatePopup(QWindow *popup)
977	{
978	if (!popup->isVisible())
979	return;
980	popup_list.removeOne(t: popup); // ensure that there's only one entry, and it's the last
981	qCDebug(lcPopup) << "appending popup" << popup << "to existing" << popup_list;
982	popup_list.append(t: popup);
983	}
984
985	bool QGuiApplicationPrivate::closePopup(QWindow *popup)
986	{
987	const auto removed = QGuiApplicationPrivate::popup_list.removeAll(t: popup);
988	qCDebug(lcPopup) << "removed?" << removed << "popup" << popup << "; remaining" << popup_list;
989	return removed; // >= 1 if something was removed
990	}
991
992	/*!
993	Returns \c true if there are no more open popups.
994	*/
995	bool QGuiApplicationPrivate::closeAllPopups()
996	{
997	// Close all popups: In case some popup refuses to close,
998	// we give up after 1024 attempts (to avoid an infinite loop).
999	int maxiter = 1024;
1000	QWindow *popup;
1001	while ((popup = activePopupWindow()) && maxiter--)
1002	popup->close(); // this will call QApplicationPrivate::closePopup
1003	return QGuiApplicationPrivate::popup_list.isEmpty();
1004	}
1005
1006	/*!
1007	Returns the QWindow that receives events tied to focus,
1008	such as key events.
1009
1010	\sa QWindow::requestActivate()
1011	*/
1012	QWindow *QGuiApplication::focusWindow()
1013	{
1014	return QGuiApplicationPrivate::focus_window;
1015	}
1016
1017	/*!
1018	\fn QGuiApplication::focusObjectChanged(QObject *focusObject)
1019
1020	This signal is emitted when final receiver of events tied to focus is changed.
1021	\a focusObject is the new receiver.
1022
1023	\sa focusObject()
1024	*/
1025
1026	/*!
1027	\fn QGuiApplication::focusWindowChanged(QWindow *focusWindow)
1028
1029	This signal is emitted when the focused window changes.
1030	\a focusWindow is the new focused window.
1031
1032	\sa focusWindow()
1033	*/
1034
1035	/*!
1036	Returns the QObject in currently active window that will be final receiver of events
1037	tied to focus, such as key events.
1038	*/
1039	QObject *QGuiApplication::focusObject()
1040	{
1041	if (focusWindow())
1042	return focusWindow()->focusObject();
1043	return nullptr;
1044	}
1045
1046	/*!
1047	\fn QGuiApplication::allWindows()
1048
1049	Returns a list of all the windows in the application.
1050
1051	The list is empty if there are no windows.
1052
1053	\sa topLevelWindows()
1054	*/
1055	QWindowList QGuiApplication::allWindows()
1056	{
1057	return QGuiApplicationPrivate::window_list;
1058	}
1059
1060	/*!
1061	\fn QGuiApplication::topLevelWindows()
1062
1063	Returns a list of the top-level windows in the application.
1064
1065	\sa allWindows()
1066	*/
1067	QWindowList QGuiApplication::topLevelWindows()
1068	{
1069	const QWindowList &list = QGuiApplicationPrivate::window_list;
1070	QWindowList topLevelWindows;
1071	for (int i = 0; i < list.size(); ++i) {
1072	QWindow *window = list.at(i);
1073	if (!window->isTopLevel())
1074	continue;
1075
1076	// Desktop windows are special, as each individual desktop window
1077	// will report that it's a top level window, but we don't want to
1078	// include them in the application wide list of top level windows.
1079	if (window->type() == Qt::Desktop)
1080	continue;
1081
1082	// Windows embedded in native windows do not have QWindow parents,
1083	// but they are not true top level windows, so do not include them.
1084	if (window->handle() && window->handle()->isEmbedded())
1085	continue;
1086
1087	topLevelWindows.prepend(t: window);
1088	}
1089
1090	return topLevelWindows;
1091	}
1092
1093	QScreen *QGuiApplication::primaryScreen()
1094	{
1095	if (QGuiApplicationPrivate::screen_list.isEmpty())
1096	return nullptr;
1097	return QGuiApplicationPrivate::screen_list.at(i: 0);
1098	}
1099
1100	/*!
1101	Returns a list of all the screens associated with the
1102	windowing system the application is connected to.
1103	*/
1104	QList<QScreen *> QGuiApplication::screens()
1105	{
1106	return QGuiApplicationPrivate::screen_list;
1107	}
1108
1109	/*!
1110	Returns the screen at \a point, or \nullptr if outside of any screen.
1111
1112	The \a point is in relation to the virtualGeometry() of each set of virtual
1113	siblings. If the point maps to more than one set of virtual siblings the first
1114	match is returned. If you wish to search only the virtual desktop siblings
1115	of a known screen (for example siblings of the screen of your application
1116	window \c QWidget::windowHandle()->screen()), use QScreen::virtualSiblingAt().
1117
1118	\since 5.10
1119	*/
1120	QScreen *QGuiApplication::screenAt(const QPoint &point)
1121	{
1122	QVarLengthArray<const QScreen *, 8> visitedScreens;
1123	for (const QScreen *screen : QGuiApplication::screens()) {
1124	if (visitedScreens.contains(t: screen))
1125	continue;
1126
1127	// The virtual siblings include the screen itself, so iterate directly
1128	for (QScreen *sibling : screen->virtualSiblings()) {
1129	if (sibling->geometry().contains(p: point))
1130	return sibling;
1131
1132	visitedScreens.append(t: sibling);
1133	}
1134	}
1135
1136	return nullptr;
1137	}
1138
1139	/*!
1140	\fn void QGuiApplication::screenAdded(QScreen *screen)
1141
1142	This signal is emitted whenever a new screen \a screen has been added to the system.
1143
1144	\sa screens(), primaryScreen, screenRemoved()
1145	*/
1146
1147	/*!
1148	\fn void QGuiApplication::screenRemoved(QScreen *screen)
1149
1150	This signal is emitted whenever a \a screen is removed from the system. It
1151	provides an opportunity to manage the windows on the screen before Qt falls back
1152	to moving them to the primary screen.
1153
1154	\sa screens(), screenAdded(), QObject::destroyed(), QWindow::setScreen()
1155
1156	\since 5.4
1157	*/
1158
1159
1160	/*!
1161	\property QGuiApplication::primaryScreen
1162
1163	\brief the primary (or default) screen of the application.
1164
1165	This will be the screen where QWindows are initially shown, unless otherwise specified.
1166
1167	The primaryScreenChanged signal was introduced in Qt 5.6.
1168
1169	\sa screens()
1170	*/
1171
1172	/*!
1173	Returns the highest screen device pixel ratio found on
1174	the system. This is the ratio between physical pixels and
1175	device-independent pixels.
1176
1177	Use this function only when you don't know which window you are targeting.
1178	If you do know the target window, use QWindow::devicePixelRatio() instead.
1179
1180	\sa QWindow::devicePixelRatio()
1181	*/
1182	qreal QGuiApplication::devicePixelRatio() const
1183	{
1184	if (!qFuzzyIsNull(d: QGuiApplicationPrivate::m_maxDevicePixelRatio))
1185	return QGuiApplicationPrivate::m_maxDevicePixelRatio;
1186
1187	QGuiApplicationPrivate::m_maxDevicePixelRatio = 1.0; // make sure we never return 0.
1188	for (QScreen *screen : std::as_const(t&: QGuiApplicationPrivate::screen_list))
1189	QGuiApplicationPrivate::m_maxDevicePixelRatio = qMax(a: QGuiApplicationPrivate::m_maxDevicePixelRatio, b: screen->devicePixelRatio());
1190
1191	return QGuiApplicationPrivate::m_maxDevicePixelRatio;
1192	}
1193
1194	void QGuiApplicationPrivate::resetCachedDevicePixelRatio()
1195	{
1196	m_maxDevicePixelRatio = 0.0;
1197	}
1198
1199	/*!
1200	Returns the top level window at the given position \a pos, if any.
1201	*/
1202	QWindow *QGuiApplication::topLevelAt(const QPoint &pos)
1203	{
1204	if (QScreen *windowScreen = screenAt(point: pos)) {
1205	const QPoint devicePosition = QHighDpi::toNativePixels(value: pos, context: windowScreen);
1206	return windowScreen->handle()->topLevelAt(point: devicePosition);
1207	}
1208	return nullptr;
1209	}
1210
1211	/*!
1212	\property QGuiApplication::platformName
1213	\brief The name of the underlying platform plugin.
1214
1215	The QPA platform plugins are located in \c {qtbase\src\plugins\platforms}.
1216	At the time of writing, the following platform plugin names are supported:
1217
1218	\list
1219	\li \c android
1220	\li \c cocoa is a platform plugin for \macos.
1221	\li \c directfb
1222	\li \c eglfs is a platform plugin for running Qt5 applications on top of
1223	EGL and OpenGL ES 2.0 without an actual windowing system (like X11
1224	or Wayland). For more information, see \l{EGLFS}.
1225	\li \c ios (also used for tvOS)
1226	\li \c linuxfb writes directly to the framebuffer. For more information,
1227	see \l{LinuxFB}.
1228	\li \c minimal is provided as an examples for developers who want to
1229	write their own platform plugins. However, you can use the plugin to
1230	run GUI applications in environments without a GUI, such as servers.
1231	\li \c minimalegl is an example plugin.
1232	\li \c offscreen
1233	\li \c qnx
1234	\li \c windows
1235	\li \c wayland is a platform plugin for the Wayland display server protocol,
1236	used on some Linux desktops and embedded systems.
1237	\li \c xcb is a plugin for the X11 window system, used on some desktop Linux platforms.
1238	\endlist
1239
1240	\note Calling this function without a QGuiApplication will return the default
1241	platform name, if available. The default platform name is not affected by the
1242	\c{-platform} command line option, or the \c QT_QPA_PLATFORM environment variable.
1243
1244	For more information about the platform plugins for embedded Linux devices,
1245	see \l{Qt for Embedded Linux}.
1246	*/
1247
1248	QString QGuiApplication::platformName()
1249	{
1250	if (!QGuiApplication::instance()) {
1251	#ifdef QT_QPA_DEFAULT_PLATFORM_NAME
1252	return QStringLiteral(QT_QPA_DEFAULT_PLATFORM_NAME);
1253	#else
1254	return QString();
1255	#endif
1256	} else {
1257	return QGuiApplicationPrivate::platform_name ?
1258	*QGuiApplicationPrivate::platform_name : QString();
1259	}
1260	}
1261
1262	Q_LOGGING_CATEGORY(lcQpaPluginLoading, "qt.qpa.plugin");
1263	Q_LOGGING_CATEGORY(lcQpaTheme, "qt.qpa.theme");
1264	Q_LOGGING_CATEGORY(lcPtrDispatch, "qt.pointer.dispatch");
1265
1266	static void init_platform(const QString &pluginNamesWithArguments, const QString &platformPluginPath, const QString &platformThemeName, int &argc, char **argv)
1267	{
1268	qCDebug(lcQpaPluginLoading) << "init_platform called with"
1269	<< "pluginNamesWithArguments" << pluginNamesWithArguments
1270	<< "platformPluginPath" << platformPluginPath
1271	<< "platformThemeName" << platformThemeName;
1272
1273	QStringList plugins = pluginNamesWithArguments.split(sep: u';', behavior: Qt::SkipEmptyParts);
1274	QStringList platformArguments;
1275	QStringList availablePlugins = QPlatformIntegrationFactory::keys(platformPluginPath);
1276	for (const auto &pluginArgument : plugins) {
1277	// Split into platform name and arguments
1278	QStringList arguments = pluginArgument.split(sep: u':', behavior: Qt::SkipEmptyParts);
1279	if (arguments.isEmpty())
1280	continue;
1281	const QString name = arguments.takeFirst().toLower();
1282	QString argumentsKey = name;
1283	if (name.isEmpty())
1284	continue;
1285	argumentsKey[0] = argumentsKey.at(i: 0).toUpper();
1286	arguments.append(l: QLibraryInfo::platformPluginArguments(platformName: argumentsKey));
1287
1288	qCDebug(lcQpaPluginLoading) << "Attempting to load Qt platform plugin" << name << "with arguments" << arguments;
1289
1290	// Create the platform integration.
1291	QGuiApplicationPrivate::platform_integration = QPlatformIntegrationFactory::create(name, args: arguments, argc, argv, platformPluginPath);
1292	if (Q_UNLIKELY(!QGuiApplicationPrivate::platform_integration)) {
1293	if (availablePlugins.contains(str: name)) {
1294	if (name == QStringLiteral("xcb") && QVersionNumber::compare(v1: QLibraryInfo::version(), v2: QVersionNumber(6, 5, 0)) >= 0) {
1295	qCWarning(lcQpaPluginLoading).nospace().noquote()
1296	<< "From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin.";
1297	}
1298	qCInfo(lcQpaPluginLoading).nospace().noquote()
1299	<< "Could not load the Qt platform plugin \"" << name << "\" in \""
1300	<< QDir::toNativeSeparators(pathName: platformPluginPath) << "\" even though it was found.";
1301	} else {
1302	qCWarning(lcQpaPluginLoading).nospace().noquote()
1303	<< "Could not find the Qt platform plugin \"" << name << "\" in \""
1304	<< QDir::toNativeSeparators(pathName: platformPluginPath) << "\"";
1305	}
1306	} else {
1307	qCDebug(lcQpaPluginLoading) << "Successfully loaded Qt platform plugin" << name;
1308	QGuiApplicationPrivate::platform_name = new QString(name);
1309	platformArguments = arguments;
1310	break;
1311	}
1312	}
1313
1314	if (Q_UNLIKELY(!QGuiApplicationPrivate::platform_integration)) {
1315	QString fatalMessage = QStringLiteral("This application failed to start because no Qt platform plugin could be initialized. "
1316	"Reinstalling the application may fix this problem.\n");
1317
1318	if (!availablePlugins.isEmpty())
1319	fatalMessage += "\nAvailable platform plugins are: %1.\n"_L1.arg(args: availablePlugins.join(sep: ", "_L1));
1320
1321	#if defined(Q_OS_WIN)
1322	// Windows: Display message box unless it is a console application
1323	// or debug build showing an assert box.
1324	if (!QLibraryInfo::isDebugBuild() && !GetConsoleWindow())
1325	MessageBox(0, (LPCTSTR)fatalMessage.utf16(), (LPCTSTR)(QCoreApplication::applicationName().utf16()), MB_OK | MB_ICONERROR);
1326	#endif // Q_OS_WIN
1327	qFatal(msg: "%s", qPrintable(fatalMessage));
1328
1329	return;
1330	}
1331
1332	// Create the platform theme:
1333
1334	// 1) Fetch the platform name from the environment if present.
1335	QStringList themeNames;
1336	if (!platformThemeName.isEmpty()) {
1337	qCDebug(lcQpaTheme) << "Adding" << platformThemeName << "from environment to list of theme names";
1338	themeNames.append(t: platformThemeName);
1339	}
1340
1341	// 2) Special case - check whether it's a flatpak or snap app to use xdg-desktop-portal platform theme for portals support
1342	if (checkNeedPortalSupport()) {
1343	qCDebug(lcQpaTheme) << "Adding xdgdesktopportal to list of theme names";
1344	themeNames.append(QStringLiteral("xdgdesktopportal"));
1345	}
1346
1347	// 3) Ask the platform integration for a list of theme names
1348	const auto platformIntegrationThemeNames = QGuiApplicationPrivate::platform_integration->themeNames();
1349	qCDebug(lcQpaTheme) << "Adding platform integration's theme names to list of theme names:" << platformIntegrationThemeNames;
1350	themeNames += platformIntegrationThemeNames;
1351	// 4) Look for a theme plugin.
1352	for (const QString &themeName : std::as_const(t&: themeNames)) {
1353	qCDebug(lcQpaTheme) << "Attempting to create platform theme" << themeName << "via QPlatformThemeFactory::create";
1354	QGuiApplicationPrivate::platform_theme = QPlatformThemeFactory::create(key: themeName, platformPluginPath);
1355	if (QGuiApplicationPrivate::platform_theme) {
1356	qCDebug(lcQpaTheme) << "Successfully created platform theme" << themeName;
1357	break;
1358	}
1359	}
1360
1361	// 5) If no theme plugin was found ask the platform integration to
1362	// create a theme
1363	if (!QGuiApplicationPrivate::platform_theme) {
1364	for (const QString &themeName : std::as_const(t&: themeNames)) {
1365	qCDebug(lcQpaTheme) << "Attempting to create platform theme" << themeName << "via createPlatformTheme";
1366	QGuiApplicationPrivate::platform_theme = QGuiApplicationPrivate::platform_integration->createPlatformTheme(name: themeName);
1367	if (QGuiApplicationPrivate::platform_theme) {
1368	qCDebug(lcQpaTheme) << "Successfully created platform theme" << themeName;
1369	break;
1370	}
1371	}
1372	// No error message; not having a theme plugin is allowed.
1373	}
1374
1375	// 6) Fall back on the built-in "null" platform theme.
1376	if (!QGuiApplicationPrivate::platform_theme) {
1377	qCDebug(lcQpaTheme) << "Failed to create platform theme; using \"null\" platform theme";
1378	QGuiApplicationPrivate::platform_theme = new QPlatformTheme;
1379	}
1380
1381	// Set arguments as dynamic properties on the native interface as
1382	// boolean 'foo' or strings: 'foo=bar'
1383	if (!platformArguments.isEmpty()) {
1384	if (QObject *nativeInterface = QGuiApplicationPrivate::platform_integration->nativeInterface()) {
1385	for (const QString &argument : std::as_const(t&: platformArguments)) {
1386	const qsizetype equalsPos = argument.indexOf(ch: u'=');
1387	const QByteArray name =
1388	equalsPos != -1 ? argument.left(n: equalsPos).toUtf8() : argument.toUtf8();
1389	const QVariant value =
1390	equalsPos != -1 ? QVariant(argument.mid(position: equalsPos + 1)) : QVariant(true);
1391	nativeInterface->setProperty(name: name.constData(), value);
1392	}
1393	}
1394	}
1395
1396	const auto platformIntegration = QGuiApplicationPrivate::platformIntegration();
1397	fontSmoothingGamma = platformIntegration->styleHint(hint: QPlatformIntegration::FontSmoothingGamma).toReal();
1398	QCoreApplication::setAttribute(attribute: Qt::AA_DontShowShortcutsInContextMenus,
1399	on: !QGuiApplication::styleHints()->showShortcutsInContextMenus());
1400
1401	if (const auto *platformTheme = QGuiApplicationPrivate::platformTheme()) {
1402	QCoreApplication::setAttribute(attribute: Qt::AA_DontShowIconsInMenus,
1403	on: !platformTheme->themeHint(hint: QPlatformTheme::ShowIconsInMenus).toBool());
1404	}
1405	}
1406
1407	static void init_plugins(const QList<QByteArray> &pluginList)
1408	{
1409	for (int i = 0; i < pluginList.size(); ++i) {
1410	QByteArray pluginSpec = pluginList.at(i);
1411	qsizetype colonPos = pluginSpec.indexOf(ch: ':');
1412	QObject *plugin;
1413	if (colonPos < 0)
1414	plugin = QGenericPluginFactory::create(QLatin1StringView(pluginSpec), QString());
1415	else
1416	plugin = QGenericPluginFactory::create(QLatin1StringView(pluginSpec.mid(index: 0, len: colonPos)),
1417	QLatin1StringView(pluginSpec.mid(index: colonPos+1)));
1418	if (plugin)
1419	QGuiApplicationPrivate::generic_plugin_list.append(t: plugin);
1420	else
1421	qWarning(msg: "No such plugin for spec \"%s\"", pluginSpec.constData());
1422	}
1423	}
1424
1425	#if QT_CONFIG(commandlineparser)
1426	void QGuiApplicationPrivate::addQtOptions(QList<QCommandLineOption> *options)
1427	{
1428	QCoreApplicationPrivate::addQtOptions(options);
1429
1430	#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
1431	const QByteArray sessionType = qgetenv(varName: "XDG_SESSION_TYPE");
1432	const bool x11 = sessionType == "x11";
1433	// Technically the x11 aliases are only available if platformName is "xcb", but we can't know that here.
1434	#else
1435	const bool x11 = false;
1436	#endif
1437
1438	options->append(t: QCommandLineOption(QStringLiteral("platform"),
1439	QGuiApplication::tr(s: "QPA plugin. See QGuiApplication documentation for available options for each plugin."), QStringLiteral("platformName[:options]")));
1440	options->append(t: QCommandLineOption(QStringLiteral("platformpluginpath"),
1441	QGuiApplication::tr(s: "Path to the platform plugins."), QStringLiteral("path")));
1442	options->append(t: QCommandLineOption(QStringLiteral("platformtheme"),
1443	QGuiApplication::tr(s: "Platform theme."), QStringLiteral("theme")));
1444	options->append(t: QCommandLineOption(QStringLiteral("plugin"),
1445	QGuiApplication::tr(s: "Additional plugins to load, can be specified multiple times."), QStringLiteral("plugin")));
1446	options->append(t: QCommandLineOption(QStringLiteral("qwindowgeometry"),
1447	QGuiApplication::tr(s: "Window geometry for the main window, using the X11-syntax, like 100x100+50+50."), QStringLiteral("geometry")));
1448	options->append(t: QCommandLineOption(QStringLiteral("qwindowicon"),
1449	QGuiApplication::tr(s: "Default window icon."), QStringLiteral("icon")));
1450	options->append(t: QCommandLineOption(QStringLiteral("qwindowtitle"),
1451	QGuiApplication::tr(s: "Title of the first window."), QStringLiteral("title")));
1452	options->append(t: QCommandLineOption(QStringLiteral("reverse"),
1453	QGuiApplication::tr(s: "Sets the application's layout direction to Qt::RightToLeft (debugging helper).")));
1454	options->append(t: QCommandLineOption(QStringLiteral("session"),
1455	QGuiApplication::tr(s: "Restores the application from an earlier session."), QStringLiteral("session")));
1456
1457	if (x11) {
1458	options->append(t: QCommandLineOption(QStringLiteral("display"),
1459	QGuiApplication::tr(s: "Display name, overrides $DISPLAY."), QStringLiteral("display")));
1460	options->append(t: QCommandLineOption(QStringLiteral("name"),
1461	QGuiApplication::tr(s: "Instance name according to ICCCM 4.1.2.5."), QStringLiteral("name")));
1462	options->append(t: QCommandLineOption(QStringLiteral("nograb"),
1463	QGuiApplication::tr(s: "Disable mouse grabbing (useful in debuggers).")));
1464	options->append(t: QCommandLineOption(QStringLiteral("dograb"),
1465	QGuiApplication::tr(s: "Force mouse grabbing (even when running in a debugger).")));
1466	options->append(t: QCommandLineOption(QStringLiteral("visual"),
1467	QGuiApplication::tr(s: "ID of the X11 Visual to use."), QStringLiteral("id")));
1468	// Not using the "QStringList names" solution for those aliases, because it makes the first column too wide
1469	options->append(t: QCommandLineOption(QStringLiteral("geometry"),
1470	QGuiApplication::tr(s: "Alias for --qwindowgeometry."), QStringLiteral("geometry")));
1471	options->append(t: QCommandLineOption(QStringLiteral("icon"),
1472	QGuiApplication::tr(s: "Alias for --qwindowicon."), QStringLiteral("icon")));
1473	options->append(t: QCommandLineOption(QStringLiteral("title"),
1474	QGuiApplication::tr(s: "Alias for --qwindowtitle."), QStringLiteral("title")));
1475	}
1476	}
1477	#endif // QT_CONFIG(commandlineparser)
1478
1479	void QGuiApplicationPrivate::createPlatformIntegration()
1480	{
1481	QHighDpiScaling::initHighDpiScaling();
1482
1483	// Load the platform integration
1484	QString platformPluginPath = QString::fromLocal8Bit(ba: qgetenv(varName: "QT_QPA_PLATFORM_PLUGIN_PATH"));
1485
1486
1487	QByteArray platformName;
1488	#ifdef QT_QPA_DEFAULT_PLATFORM_NAME
1489	platformName = QT_QPA_DEFAULT_PLATFORM_NAME;
1490	#endif
1491	#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
1492	QList<QByteArray> platformArguments = platformName.split(sep: ':');
1493	QByteArray platformPluginBase = platformArguments.first();
1494
1495	const bool hasWaylandDisplay = qEnvironmentVariableIsSet(varName: "WAYLAND_DISPLAY");
1496	const bool isWaylandSessionType = qgetenv(varName: "XDG_SESSION_TYPE") == "wayland";
1497
1498	QVector<QByteArray> preferredPlatformOrder;
1499	const bool defaultIsXcb = platformPluginBase == "xcb";
1500	const QByteArray xcbPlatformName = defaultIsXcb ? platformName : "xcb";
1501	if (qEnvironmentVariableIsSet(varName: "DISPLAY")) {
1502	preferredPlatformOrder << xcbPlatformName;
1503	if (defaultIsXcb)
1504	platformName.clear();
1505	}
1506
1507	const bool defaultIsWayland = !defaultIsXcb && platformPluginBase.startsWith(bv: "wayland");
1508	const QByteArray waylandPlatformName = defaultIsWayland ? platformName : "wayland";
1509	if (hasWaylandDisplay || isWaylandSessionType) {
1510	preferredPlatformOrder.prepend(t: waylandPlatformName);
1511
1512	if (defaultIsWayland)
1513	platformName.clear();
1514	}
1515
1516	if (!platformName.isEmpty())
1517	preferredPlatformOrder.append(t: platformName);
1518
1519	platformName = preferredPlatformOrder.join(sep: ';');
1520	#endif
1521
1522	bool platformExplicitlySelected = false;
1523	QByteArray platformNameEnv = qgetenv(varName: "QT_QPA_PLATFORM");
1524	if (!platformNameEnv.isEmpty()) {
1525	platformName = platformNameEnv;
1526	platformExplicitlySelected = true;
1527	}
1528
1529	QString platformThemeName = QString::fromLocal8Bit(ba: qgetenv(varName: "QT_QPA_PLATFORMTHEME"));
1530
1531	// Get command line params
1532
1533	QString icon;
1534
1535	int j = argc ? 1 : 0;
1536	for (int i=1; i<argc; i++) {
1537	if (!argv[i])
1538	continue;
1539	if (*argv[i] != '-') {
1540	argv[j++] = argv[i];
1541	continue;
1542	}
1543	const bool xcbIsDefault = platformName.startsWith(bv: "xcb");
1544	const char *arg = argv[i];
1545	if (arg[1] == '-') // startsWith("--")
1546	++arg;
1547	if (strcmp(s1: arg, s2: "-platformpluginpath") == 0) {
1548	if (++i < argc)
1549	platformPluginPath = QFile::decodeName(localFileName: argv[i]);
1550	} else if (strcmp(s1: arg, s2: "-platform") == 0) {
1551	if (++i < argc) {
1552	platformExplicitlySelected = true;
1553	platformName = argv[i];
1554	}
1555	} else if (strcmp(s1: arg, s2: "-platformtheme") == 0) {
1556	if (++i < argc)
1557	platformThemeName = QString::fromLocal8Bit(ba: argv[i]);
1558	} else if (strcmp(s1: arg, s2: "-qwindowgeometry") == 0 || (xcbIsDefault && strcmp(s1: arg, s2: "-geometry") == 0)) {
1559	if (++i < argc)
1560	windowGeometrySpecification = QWindowGeometrySpecification::fromArgument(a: argv[i]);
1561	} else if (strcmp(s1: arg, s2: "-qwindowtitle") == 0 || (xcbIsDefault && strcmp(s1: arg, s2: "-title") == 0)) {
1562	if (++i < argc)
1563	firstWindowTitle = QString::fromLocal8Bit(ba: argv[i]);
1564	} else if (strcmp(s1: arg, s2: "-qwindowicon") == 0 || (xcbIsDefault && strcmp(s1: arg, s2: "-icon") == 0)) {
1565	if (++i < argc) {
1566	icon = QFile::decodeName(localFileName: argv[i]);
1567	}
1568	} else {
1569	argv[j++] = argv[i];
1570	}
1571	}
1572
1573	if (j < argc) {
1574	argv[j] = nullptr;
1575	argc = j;
1576	}
1577
1578	Q_UNUSED(platformExplicitlySelected);
1579
1580	init_platform(pluginNamesWithArguments: QLatin1StringView(platformName), platformPluginPath, platformThemeName, argc, argv);
1581	if (const QPlatformTheme *theme = platformTheme())
1582	QStyleHintsPrivate::get(q: QGuiApplication::styleHints())->updateColorScheme(colorScheme: theme->colorScheme());
1583
1584	if (!icon.isEmpty())
1585	forcedWindowIcon = QDir::isAbsolutePath(path: icon) ? QIcon(icon) : QIcon::fromTheme(name: icon);
1586	}
1587
1588	/*!
1589	Called from QCoreApplication::init()
1590
1591	Responsible for creating an event dispatcher when QCoreApplication
1592	decides that it needs one (because a custom one has not been set).
1593	*/
1594	void QGuiApplicationPrivate::createEventDispatcher()
1595	{
1596	Q_ASSERT(!eventDispatcher);
1597
1598	if (platform_integration == nullptr)
1599	createPlatformIntegration();
1600
1601	// The platform integration should not result in creating an event dispatcher
1602	Q_ASSERT_X(!threadData.loadRelaxed()->eventDispatcher, "QGuiApplication",
1603	"Creating the platform integration resulted in creating an event dispatcher");
1604
1605	// Nor should it mess with the QCoreApplication's event dispatcher
1606	Q_ASSERT(!eventDispatcher);
1607
1608	eventDispatcher = platform_integration->createEventDispatcher();
1609	}
1610
1611	void QGuiApplicationPrivate::eventDispatcherReady()
1612	{
1613	if (platform_integration == nullptr)
1614	createPlatformIntegration();
1615
1616	platform_integration->initialize();
1617	}
1618
1619	void Q_TRACE_INSTRUMENT(qtgui) QGuiApplicationPrivate::init()
1620	{
1621	Q_TRACE_SCOPE(QGuiApplicationPrivate_init);
1622
1623	#if defined(Q_OS_MACOS)
1624	QMacAutoReleasePool pool;
1625	#endif
1626
1627	QCoreApplicationPrivate::init();
1628
1629	QCoreApplicationPrivate::is_app_running = false; // Starting up.
1630
1631	bool loadTestability = false;
1632	QList<QByteArray> pluginList;
1633	// Get command line params
1634	#ifndef QT_NO_SESSIONMANAGER
1635	QString session_id;
1636	QString session_key;
1637	# if defined(Q_OS_WIN)
1638	wchar_t guidstr[40];
1639	GUID guid;
1640	CoCreateGuid(&guid);
1641	StringFromGUID2(guid, guidstr, 40);
1642	session_id = QString::fromWCharArray(guidstr);
1643	CoCreateGuid(&guid);
1644	StringFromGUID2(guid, guidstr, 40);
1645	session_key = QString::fromWCharArray(guidstr);
1646	# endif
1647	#endif
1648	QString s;
1649	int j = argc ? 1 : 0;
1650	for (int i=1; i<argc; i++) {
1651	if (!argv[i])
1652	continue;
1653	if (*argv[i] != '-') {
1654	argv[j++] = argv[i];
1655	continue;
1656	}
1657	const char *arg = argv[i];
1658	if (arg[1] == '-') // startsWith("--")
1659	++arg;
1660	if (strcmp(s1: arg, s2: "-plugin") == 0) {
1661	if (++i < argc)
1662	pluginList << argv[i];
1663	} else if (strcmp(s1: arg, s2: "-reverse") == 0) {
1664	force_reverse = true;
1665	#ifdef Q_OS_MAC
1666	} else if (strncmp(arg, "-psn_", 5) == 0) {
1667	// eat "-psn_xxxx" on Mac, which is passed when starting an app from Finder.
1668	// special hack to change working directory (for an app bundle) when running from finder
1669	if (QDir::currentPath() == "/"_L1) {
1670	QCFType<CFURLRef> bundleURL(CFBundleCopyBundleURL(CFBundleGetMainBundle()));
1671	QString qbundlePath = QCFString(CFURLCopyFileSystemPath(bundleURL,
1672	kCFURLPOSIXPathStyle));
1673	if (qbundlePath.endsWith(".app"_L1))
1674	QDir::setCurrent(qbundlePath.section(u'/', 0, -2));
1675	}
1676	#endif
1677	#ifndef QT_NO_SESSIONMANAGER
1678	} else if (strcmp(s1: arg, s2: "-session") == 0 && i < argc - 1) {
1679	++i;
1680	if (argv[i] && *argv[i]) {
1681	session_id = QString::fromLatin1(ba: argv[i]);
1682	qsizetype p = session_id.indexOf(ch: u'_');
1683	if (p >= 0) {
1684	session_key = session_id.mid(position: p +1);
1685	session_id = session_id.left(n: p);
1686	}
1687	is_session_restored = true;
1688	}
1689	#endif
1690	} else if (strcmp(s1: arg, s2: "-testability") == 0) {
1691	loadTestability = true;
1692	} else if (strncmp(s1: arg, s2: "-style=", n: 7) == 0) {
1693	s = QString::fromLocal8Bit(ba: arg + 7);
1694	} else if (strcmp(s1: arg, s2: "-style") == 0 && i < argc - 1) {
1695	s = QString::fromLocal8Bit(ba: argv[++i]);
1696	} else {
1697	argv[j++] = argv[i];
1698	}
1699
1700	if (!s.isEmpty())
1701	styleOverride = s;
1702	}
1703
1704	if (j < argc) {
1705	argv[j] = nullptr;
1706	argc = j;
1707	}
1708
1709	// Load environment exported generic plugins
1710	QByteArray envPlugins = qgetenv(varName: "QT_QPA_GENERIC_PLUGINS");
1711	if (!envPlugins.isEmpty())
1712	pluginList += envPlugins.split(sep: ',');
1713
1714	if (platform_integration == nullptr)
1715	createPlatformIntegration();
1716
1717	updatePalette();
1718	QFont::initialize();
1719	initThemeHints();
1720
1721	#ifndef QT_NO_CURSOR
1722	QCursorData::initialize();
1723	#endif
1724
1725	// trigger registering of QVariant's GUI types
1726	qRegisterGuiVariant();
1727
1728	#if QT_CONFIG(animation)
1729	// trigger registering of animation interpolators
1730	qRegisterGuiGetInterpolator();
1731	#endif
1732
1733	// set a global share context when enabled unless there is already one
1734	#ifndef QT_NO_OPENGL
1735	if (qApp->testAttribute(attribute: Qt::AA_ShareOpenGLContexts) && !qt_gl_global_share_context()) {
1736	QOpenGLContext *ctx = new QOpenGLContext;
1737	ctx->setFormat(QSurfaceFormat::defaultFormat());
1738	ctx->create();
1739	qt_gl_set_global_share_context(context: ctx);
1740	ownGlobalShareContext = true;
1741	}
1742	#endif
1743
1744	QWindowSystemInterfacePrivate::eventTime.start();
1745
1746	is_app_running = true;
1747	init_plugins(pluginList);
1748	QWindowSystemInterface::flushWindowSystemEvents();
1749
1750	Q_Q(QGuiApplication);
1751	#ifndef QT_NO_SESSIONMANAGER
1752	// connect to the session manager
1753	session_manager = new QSessionManager(q, session_id, session_key);
1754	#endif
1755
1756	#if QT_CONFIG(library)
1757	if (qEnvironmentVariableIntValue(varName: "QT_LOAD_TESTABILITY") > 0)
1758	loadTestability = true;
1759
1760	if (loadTestability) {
1761	QLibrary testLib(QStringLiteral("qttestability"));
1762	if (Q_UNLIKELY(!testLib.load())) {
1763	qCritical() << "Library qttestability load failed:" << testLib.errorString();
1764	} else {
1765	typedef void (*TasInitialize)(void);
1766	TasInitialize initFunction = (TasInitialize)testLib.resolve(symbol: "qt_testability_init");
1767	if (Q_UNLIKELY(!initFunction)) {
1768	qCritical(msg: "Library qttestability resolve failed!");
1769	} else {
1770	initFunction();
1771	}
1772	}
1773	}
1774	#else
1775	Q_UNUSED(loadTestability);
1776	#endif // QT_CONFIG(library)
1777
1778	// trigger changed signal and event delivery
1779	QGuiApplication::setLayoutDirection(layout_direction);
1780
1781	if (!QGuiApplicationPrivate::displayName)
1782	QObject::connect(sender: q, signal: &QGuiApplication::applicationNameChanged,
1783	context: q, slot: &QGuiApplication::applicationDisplayNameChanged);
1784	}
1785
1786	extern void qt_cleanupFontDatabase();
1787
1788	QGuiApplicationPrivate::~QGuiApplicationPrivate()
1789	{
1790	is_app_closing = true;
1791	is_app_running = false;
1792
1793	for (int i = 0; i < generic_plugin_list.size(); ++i)
1794	delete generic_plugin_list.at(i);
1795	generic_plugin_list.clear();
1796
1797	clearFontUnlocked();
1798
1799	QFont::cleanup();
1800
1801	#ifndef QT_NO_CURSOR
1802	QCursorData::cleanup();
1803	#endif
1804
1805	layout_direction = Qt::LayoutDirectionAuto;
1806
1807	cleanupThreadData();
1808
1809	delete QGuiApplicationPrivate::styleHints;
1810	QGuiApplicationPrivate::styleHints = nullptr;
1811	delete inputMethod;
1812
1813	qt_cleanupFontDatabase();
1814
1815	QPixmapCache::clear();
1816
1817	#ifndef QT_NO_OPENGL
1818	if (ownGlobalShareContext) {
1819	delete qt_gl_global_share_context();
1820	qt_gl_set_global_share_context(context: nullptr);
1821	}
1822	#endif
1823
1824	#if QT_CONFIG(vulkan)
1825	QVulkanDefaultInstance::cleanup();
1826	#endif
1827
1828	platform_integration->destroy();
1829
1830	delete platform_theme;
1831	platform_theme = nullptr;
1832	delete platform_integration;
1833	platform_integration = nullptr;
1834
1835	window_list.clear();
1836	popup_list.clear();
1837	screen_list.clear();
1838
1839	self = nullptr;
1840	}
1841
1842	#if 0
1843	#ifndef QT_NO_CURSOR
1844	QCursor *overrideCursor();
1845	void setOverrideCursor(const QCursor &);
1846	void changeOverrideCursor(const QCursor &);
1847	void restoreOverrideCursor();
1848	#endif
1849
1850	static QFont font();
1851	static QFont font(const QWidget*);
1852	static QFont font(const char *className);
1853	static void setFont(const QFont &, const char *className = nullptr);
1854	static QFontMetrics fontMetrics();
1855
1856	#ifndef QT_NO_CLIPBOARD
1857	static QClipboard *clipboard();
1858	#endif
1859	#endif
1860
1861	/*!
1862	Returns the current state of the modifier keys on the keyboard. The current
1863	state is updated synchronously as the event queue is emptied of events that
1864	will spontaneously change the keyboard state (QEvent::KeyPress and
1865	QEvent::KeyRelease events).
1866
1867	It should be noted this may not reflect the actual keys held on the input
1868	device at the time of calling but rather the modifiers as last reported in
1869	one of the above events. If no keys are being held Qt::NoModifier is
1870	returned.
1871
1872	\sa mouseButtons(), queryKeyboardModifiers()
1873	*/
1874	Qt::KeyboardModifiers QGuiApplication::keyboardModifiers()
1875	{
1876	return QGuiApplicationPrivate::modifier_buttons;
1877	}
1878
1879	/*!
1880	\fn Qt::KeyboardModifiers QGuiApplication::queryKeyboardModifiers()
1881
1882	Queries and returns the state of the modifier keys on the keyboard.
1883	Unlike keyboardModifiers, this method returns the actual keys held
1884	on the input device at the time of calling the method.
1885
1886	It does not rely on the keypress events having been received by this
1887	process, which makes it possible to check the modifiers while moving
1888	a window, for instance. Note that in most cases, you should use
1889	keyboardModifiers(), which is faster and more accurate since it contains
1890	the state of the modifiers as they were when the currently processed
1891	event was received.
1892
1893	\sa keyboardModifiers()
1894	*/
1895	Qt::KeyboardModifiers QGuiApplication::queryKeyboardModifiers()
1896	{
1897	CHECK_QAPP_INSTANCE(Qt::KeyboardModifiers{})
1898	QPlatformIntegration *pi = QGuiApplicationPrivate::platformIntegration();
1899	return pi->keyMapper()->queryKeyboardModifiers();
1900	}
1901
1902	/*!
1903	Returns the current state of the buttons on the mouse. The current state is
1904	updated synchronously as the event queue is emptied of events that will
1905	spontaneously change the mouse state (QEvent::MouseButtonPress and
1906	QEvent::MouseButtonRelease events).
1907
1908	It should be noted this may not reflect the actual buttons held on the
1909	input device at the time of calling but rather the mouse buttons as last
1910	reported in one of the above events. If no mouse buttons are being held
1911	Qt::NoButton is returned.
1912
1913	\sa keyboardModifiers()
1914	*/
1915	Qt::MouseButtons QGuiApplication::mouseButtons()
1916	{
1917	return QGuiApplicationPrivate::mouse_buttons;
1918	}
1919
1920	/*!
1921	\internal
1922	Returns the platform's native interface, for platform specific
1923	functionality.
1924	*/
1925	QPlatformNativeInterface *QGuiApplication::platformNativeInterface()
1926	{
1927	QPlatformIntegration *pi = QGuiApplicationPrivate::platformIntegration();
1928	return pi ? pi->nativeInterface() : nullptr;
1929	}
1930
1931	/*!
1932	\internal
1933	Returns a function pointer from the platformplugin matching \a function
1934	*/
1935	QFunctionPointer QGuiApplication::platformFunction(const QByteArray &function)
1936	{
1937	QPlatformIntegration *pi = QGuiApplicationPrivate::platformIntegration();
1938	if (!pi) {
1939	qWarning(msg: "QGuiApplication::platformFunction(): Must construct a QGuiApplication before accessing a platform function");
1940	return nullptr;
1941	}
1942
1943	return pi->nativeInterface() ? pi->nativeInterface()->platformFunction(function) : nullptr;
1944	}
1945
1946	/*!
1947	Enters the main event loop and waits until exit() is called, and then
1948	returns the value that was set to exit() (which is 0 if exit() is called
1949	via quit()).
1950
1951	It is necessary to call this function to start event handling. The main
1952	event loop receives events from the window system and dispatches these to
1953	the application widgets.
1954
1955	Generally, no user interaction can take place before calling exec().
1956
1957	To make your application perform idle processing, e.g., executing a
1958	special function whenever there are no pending events, use a QChronoTimer
1959	with 0ns timeout. More advanced idle processing schemes can be achieved
1960	using processEvents().
1961
1962	We recommend that you connect clean-up code to the
1963	\l{QCoreApplication::}{aboutToQuit()} signal, instead of putting it in your
1964	application's \c{main()} function. This is because, on some platforms, the
1965	QApplication::exec() call may not return.
1966
1967	\sa quitOnLastWindowClosed, quit(), exit(), processEvents(),
1968	QCoreApplication::exec()
1969	*/
1970	int QGuiApplication::exec()
1971	{
1972	#if QT_CONFIG(accessibility)
1973	QAccessible::setRootObject(qApp);
1974	#endif
1975	return QCoreApplication::exec();
1976	}
1977
1978	void QGuiApplicationPrivate::captureGlobalModifierState(QEvent *e)
1979	{
1980	if (e->spontaneous()) {
1981	// Capture the current mouse and keyboard states. Doing so here is
1982	// required in order to support Qt Test synthesized events. Real mouse
1983	// and keyboard state updates from the platform plugin are managed by
1984	// QGuiApplicationPrivate::process(Mouse|Wheel|Key|Touch|Tablet)Event();
1985	// ### FIXME: Qt Test should not call qapp->notify(), but rather route
1986	// the events through the proper QPA interface. This is required to
1987	// properly generate all other events such as enter/leave etc.
1988	switch (e->type()) {
1989	case QEvent::MouseButtonPress: {
1990	QMouseEvent *me = static_cast<QMouseEvent *>(e);
1991	QGuiApplicationPrivate::modifier_buttons = me->modifiers();
1992	QGuiApplicationPrivate::mouse_buttons |= me->button();
1993	break;
1994	}
1995	case QEvent::MouseButtonDblClick: {
1996	QMouseEvent *me = static_cast<QMouseEvent *>(e);
1997	QGuiApplicationPrivate::modifier_buttons = me->modifiers();
1998	QGuiApplicationPrivate::mouse_buttons |= me->button();
1999	break;
2000	}
2001	case QEvent::MouseButtonRelease: {
2002	QMouseEvent *me = static_cast<QMouseEvent *>(e);
2003	QGuiApplicationPrivate::modifier_buttons = me->modifiers();
2004	QGuiApplicationPrivate::mouse_buttons &= ~me->button();
2005	break;
2006	}
2007	case QEvent::KeyPress:
2008	case QEvent::KeyRelease:
2009	case QEvent::MouseMove:
2010	#if QT_CONFIG(wheelevent)
2011	case QEvent::Wheel:
2012	#endif
2013	case QEvent::TouchBegin:
2014	case QEvent::TouchUpdate:
2015	case QEvent::TouchEnd:
2016	#if QT_CONFIG(tabletevent)
2017	case QEvent::TabletMove:
2018	case QEvent::TabletPress:
2019	case QEvent::TabletRelease:
2020	#endif
2021	{
2022	QInputEvent *ie = static_cast<QInputEvent *>(e);
2023	QGuiApplicationPrivate::modifier_buttons = ie->modifiers();
2024	break;
2025	}
2026	default:
2027	break;
2028	}
2029	}
2030	}
2031
2032	/*! \reimp
2033	*/
2034	bool QGuiApplication::notify(QObject *object, QEvent *event)
2035	{
2036	Q_D(QGuiApplication);
2037	if (object->isWindowType()) {
2038	if (QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow(window: static_cast<QWindow *>(object), event))
2039	return true; // Platform plugin ate the event
2040	}
2041
2042	switch (event->type()) {
2043	case QEvent::ApplicationDeactivate:
2044	case QEvent::OrientationChange:
2045	// Close all popups (triggers when switching applications
2046	// by pressing ALT-TAB on Windows, which is not received as a key event.
2047	// triggers when the screen rotates.)
2048	// This is also necessary on Wayland, and platforms where
2049	// QWindow::setMouseGrabEnabled(true) doesn't work.
2050	d->closeAllPopups();
2051	break;
2052	default:
2053	break;
2054	}
2055
2056	QGuiApplicationPrivate::captureGlobalModifierState(e: event);
2057
2058	return QCoreApplication::notify(object, event);
2059	}
2060
2061	/*! \reimp
2062	*/
2063	bool QGuiApplication::event(QEvent *e)
2064	{
2065	switch (e->type()) {
2066	case QEvent::LanguageChange:
2067	// if the layout direction was set explicitly, then don't override it here
2068	if (layout_direction == Qt::LayoutDirectionAuto)
2069	setLayoutDirection(layout_direction);
2070	for (auto *topLevelWindow : QGuiApplication::topLevelWindows()) {
2071	if (topLevelWindow->flags() != Qt::Desktop)
2072	postEvent(receiver: topLevelWindow, event: new QEvent(QEvent::LanguageChange));
2073	}
2074	break;
2075	case QEvent::ApplicationFontChange:
2076	case QEvent::ApplicationPaletteChange:
2077	for (auto *topLevelWindow : QGuiApplication::topLevelWindows()) {
2078	if (topLevelWindow->flags() != Qt::Desktop)
2079	postEvent(receiver: topLevelWindow, event: new QEvent(e->type()));
2080	}
2081	break;
2082	case QEvent::Quit:
2083	// Close open windows. This is done in order to deliver de-expose
2084	// events while the event loop is still running.
2085	for (QWindow *topLevelWindow : QGuiApplication::topLevelWindows()) {
2086	// Already closed windows will not have a platform window, skip those
2087	if (!topLevelWindow->handle())
2088	continue;
2089	if (!topLevelWindow->close()) {
2090	e->ignore();
2091	return true;
2092	}
2093	}
2094	break;
2095	default:
2096	break;
2097	}
2098	return QCoreApplication::event(e);
2099	}
2100
2101	/*!
2102	\internal
2103	*/
2104	bool QGuiApplication::compressEvent(QEvent *event, QObject *receiver, QPostEventList *postedEvents)
2105	{
2106	return QCoreApplication::compressEvent(event, receiver, postedEvents);
2107	}
2108
2109	bool QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow(QWindow *window, QEvent *event)
2110	{
2111	if (!window)
2112	return false;
2113	QPlatformWindow *platformWindow = window->handle();
2114	if (!platformWindow)
2115	return false;
2116	// spontaneous events come from the platform integration already, we don't need to send the events back
2117	if (event->spontaneous())
2118	return false;
2119	// let the platform window do any handling it needs to as well
2120	return platformWindow->windowEvent(event);
2121	}
2122
2123	bool QGuiApplicationPrivate::processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result)
2124	{
2125	return window->nativeEvent(eventType, message, result);
2126	}
2127
2128	bool QGuiApplicationPrivate::isUsingVirtualKeyboard()
2129	{
2130	static const bool usingVirtualKeyboard = getenv(name: "QT_IM_MODULE") == QByteArray("qtvirtualkeyboard");
2131	return usingVirtualKeyboard;
2132	}
2133
2134	// If a virtual keyboard exists, forward mouse event
2135	bool QGuiApplicationPrivate::maybeForwardEventToVirtualKeyboard(QEvent *e)
2136	{
2137	if (!isUsingVirtualKeyboard()) {
2138	qCDebug(lcVirtualKeyboard) << "Virtual keyboard not supported.";
2139	return false;
2140	}
2141
2142	static QPointer<QWindow> virtualKeyboard;
2143	const QEvent::Type type = e->type();
2144	Q_ASSERT(type == QEvent::MouseButtonPress || type == QEvent::MouseButtonRelease);
2145	const auto me = static_cast<QMouseEvent *>(e);
2146	const QPointF posF = me->globalPosition();
2147	const QPoint pos = posF.toPoint();
2148
2149	// Is there a visible virtual keyboard at event position?
2150	if (!virtualKeyboard) {
2151	if (QWindow *win = QGuiApplication::topLevelAt(pos);
2152	win->inherits(classname: "QtVirtualKeyboard::InputView")) {
2153	virtualKeyboard = win;
2154	} else {
2155	qCDebug(lcVirtualKeyboard) << "Virtual keyboard supported, but inactive.";
2156	return false;
2157	}
2158	}
2159
2160	Q_ASSERT(virtualKeyboard);
2161	const bool virtualKeyboardUnderMouse = virtualKeyboard->isVisible()
2162	&& virtualKeyboard->geometry().contains(p: pos);
2163
2164	if (!virtualKeyboardUnderMouse) {
2165	qCDebug(lcVirtualKeyboard) << type << "at" << pos << "is outside geometry"
2166	<< virtualKeyboard->geometry() << "of" << virtualKeyboard.data();
2167	return false;
2168	}
2169
2170	QMouseEvent vkbEvent(type, virtualKeyboard->mapFromGlobal(pos), pos,
2171	me->button(), me->buttons(), me->modifiers(),
2172	me->pointingDevice());
2173
2174	QGuiApplication::sendEvent(receiver: virtualKeyboard, event: &vkbEvent);
2175	qCDebug(lcVirtualKeyboard) << "Forwarded" << type << "to" << virtualKeyboard.data()
2176	<< "at" << pos;
2177
2178	return true;
2179	}
2180
2181	void Q_TRACE_INSTRUMENT(qtgui) QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *e)
2182	{
2183	Q_TRACE_PARAM_REPLACE(QWindowSystemInterfacePrivate::WindowSystemEvent *, int);
2184	Q_TRACE_SCOPE(QGuiApplicationPrivate_processWindowSystemEvent, e->type);
2185
2186	switch(e->type) {
2187	case QWindowSystemInterfacePrivate::Mouse:
2188	QGuiApplicationPrivate::processMouseEvent(e: static_cast<QWindowSystemInterfacePrivate::MouseEvent *>(e));
2189	break;
2190	case QWindowSystemInterfacePrivate::Wheel:
2191	QGuiApplicationPrivate::processWheelEvent(e: static_cast<QWindowSystemInterfacePrivate::WheelEvent *>(e));
2192	break;
2193	case QWindowSystemInterfacePrivate::Key:
2194	QGuiApplicationPrivate::processKeyEvent(e: static_cast<QWindowSystemInterfacePrivate::KeyEvent *>(e));
2195	break;
2196	case QWindowSystemInterfacePrivate::Touch:
2197	QGuiApplicationPrivate::processTouchEvent(e: static_cast<QWindowSystemInterfacePrivate::TouchEvent *>(e));
2198	break;
2199	case QWindowSystemInterfacePrivate::GeometryChange:
2200	QGuiApplicationPrivate::processGeometryChangeEvent(e: static_cast<QWindowSystemInterfacePrivate::GeometryChangeEvent*>(e));
2201	break;
2202	case QWindowSystemInterfacePrivate::Enter:
2203	QGuiApplicationPrivate::processEnterEvent(e: static_cast<QWindowSystemInterfacePrivate::EnterEvent *>(e));
2204	break;
2205	case QWindowSystemInterfacePrivate::Leave:
2206	QGuiApplicationPrivate::processLeaveEvent(e: static_cast<QWindowSystemInterfacePrivate::LeaveEvent *>(e));
2207	break;
2208	case QWindowSystemInterfacePrivate::FocusWindow:
2209	QGuiApplicationPrivate::processFocusWindowEvent(e: static_cast<QWindowSystemInterfacePrivate::FocusWindowEvent *>(e));
2210	break;
2211	case QWindowSystemInterfacePrivate::WindowStateChanged:
2212	QGuiApplicationPrivate::processWindowStateChangedEvent(e: static_cast<QWindowSystemInterfacePrivate::WindowStateChangedEvent *>(e));
2213	break;
2214	case QWindowSystemInterfacePrivate::WindowScreenChanged:
2215	QGuiApplicationPrivate::processWindowScreenChangedEvent(e: static_cast<QWindowSystemInterfacePrivate::WindowScreenChangedEvent *>(e));
2216	break;
2217	case QWindowSystemInterfacePrivate::WindowDevicePixelRatioChanged:
2218	QGuiApplicationPrivate::processWindowDevicePixelRatioChangedEvent(e: static_cast<QWindowSystemInterfacePrivate::WindowDevicePixelRatioChangedEvent *>(e));
2219	break;
2220	case QWindowSystemInterfacePrivate::SafeAreaMarginsChanged:
2221	QGuiApplicationPrivate::processSafeAreaMarginsChangedEvent(e: static_cast<QWindowSystemInterfacePrivate::SafeAreaMarginsChangedEvent *>(e));
2222	break;
2223	case QWindowSystemInterfacePrivate::ApplicationStateChanged: {
2224	QWindowSystemInterfacePrivate::ApplicationStateChangedEvent * changeEvent = static_cast<QWindowSystemInterfacePrivate::ApplicationStateChangedEvent *>(e);
2225	QGuiApplicationPrivate::setApplicationState(state: changeEvent->newState, forcePropagate: changeEvent->forcePropagate); }
2226	break;
2227	case QWindowSystemInterfacePrivate::ApplicationTermination:
2228	QGuiApplicationPrivate::processApplicationTermination(e);
2229	break;
2230	case QWindowSystemInterfacePrivate::FlushEvents: {
2231	QWindowSystemInterfacePrivate::FlushEventsEvent *flushEventsEvent = static_cast<QWindowSystemInterfacePrivate::FlushEventsEvent *>(e);
2232	QWindowSystemInterface::deferredFlushWindowSystemEvents(flags: flushEventsEvent->flags); }
2233	break;
2234	case QWindowSystemInterfacePrivate::Close:
2235	QGuiApplicationPrivate::processCloseEvent(
2236	e: static_cast<QWindowSystemInterfacePrivate::CloseEvent *>(e));
2237	break;
2238	case QWindowSystemInterfacePrivate::ScreenOrientation:
2239	QGuiApplicationPrivate::processScreenOrientationChange(
2240	e: static_cast<QWindowSystemInterfacePrivate::ScreenOrientationEvent *>(e));
2241	break;
2242	case QWindowSystemInterfacePrivate::ScreenGeometry:
2243	QGuiApplicationPrivate::processScreenGeometryChange(
2244	e: static_cast<QWindowSystemInterfacePrivate::ScreenGeometryEvent *>(e));
2245	break;
2246	case QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInch:
2247	QGuiApplicationPrivate::processScreenLogicalDotsPerInchChange(
2248	e: static_cast<QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent *>(e));
2249	break;
2250	case QWindowSystemInterfacePrivate::ScreenRefreshRate:
2251	QGuiApplicationPrivate::processScreenRefreshRateChange(
2252	e: static_cast<QWindowSystemInterfacePrivate::ScreenRefreshRateEvent *>(e));
2253	break;
2254	case QWindowSystemInterfacePrivate::ThemeChange:
2255	QGuiApplicationPrivate::processThemeChanged(
2256	tce: static_cast<QWindowSystemInterfacePrivate::ThemeChangeEvent *>(e));
2257	break;
2258	case QWindowSystemInterfacePrivate::Expose:
2259	QGuiApplicationPrivate::processExposeEvent(e: static_cast<QWindowSystemInterfacePrivate::ExposeEvent *>(e));
2260	break;
2261	case QWindowSystemInterfacePrivate::Paint:
2262	QGuiApplicationPrivate::processPaintEvent(e: static_cast<QWindowSystemInterfacePrivate::PaintEvent *>(e));
2263	break;
2264	case QWindowSystemInterfacePrivate::Tablet:
2265	QGuiApplicationPrivate::processTabletEvent(
2266	e: static_cast<QWindowSystemInterfacePrivate::TabletEvent *>(e));
2267	break;
2268	case QWindowSystemInterfacePrivate::TabletEnterProximity:
2269	QGuiApplicationPrivate::processTabletEnterProximityEvent(
2270	e: static_cast<QWindowSystemInterfacePrivate::TabletEnterProximityEvent *>(e));
2271	break;
2272	case QWindowSystemInterfacePrivate::TabletLeaveProximity:
2273	QGuiApplicationPrivate::processTabletLeaveProximityEvent(
2274	e: static_cast<QWindowSystemInterfacePrivate::TabletLeaveProximityEvent *>(e));
2275	break;
2276	#ifndef QT_NO_GESTURES
2277	case QWindowSystemInterfacePrivate::Gesture:
2278	QGuiApplicationPrivate::processGestureEvent(
2279	e: static_cast<QWindowSystemInterfacePrivate::GestureEvent *>(e));
2280	break;
2281	#endif
2282	case QWindowSystemInterfacePrivate::PlatformPanel:
2283	QGuiApplicationPrivate::processPlatformPanelEvent(
2284	e: static_cast<QWindowSystemInterfacePrivate::PlatformPanelEvent *>(e));
2285	break;
2286	case QWindowSystemInterfacePrivate::FileOpen:
2287	QGuiApplicationPrivate::processFileOpenEvent(
2288	e: static_cast<QWindowSystemInterfacePrivate::FileOpenEvent *>(e));
2289	break;
2290	#ifndef QT_NO_CONTEXTMENU
2291	case QWindowSystemInterfacePrivate::ContextMenu:
2292	QGuiApplicationPrivate::processContextMenuEvent(
2293	e: static_cast<QWindowSystemInterfacePrivate::ContextMenuEvent *>(e));
2294	break;
2295	#endif
2296	case QWindowSystemInterfacePrivate::EnterWhatsThisMode:
2297	QGuiApplication::postEvent(receiver: QGuiApplication::instance(), event: new QEvent(QEvent::EnterWhatsThisMode));
2298	break;
2299	default:
2300	qWarning() << "Unknown user input event type:" << e->type;
2301	break;
2302	}
2303	}
2304
2305	/*! \internal
2306
2307	History is silent on why Qt splits mouse events that change position and
2308	button state at the same time. We believe that this was done to emulate mouse
2309	behavior on touch screens. If mouse tracking is enabled, we will get move
2310	events before the button is pressed. A touch panel does not generally give
2311	move events when not pressed, so without event splitting code path we would
2312	only see a press in a new location without any intervening moves. This could
2313	confuse code that is written for a real mouse. The same is true for mouse
2314	release events that change position, see tst_QWidget::touchEventSynthesizedMouseEvent()
2315	and tst_QWindow::generatedMouseMove() auto tests.
2316	*/
2317	void QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent *e)
2318	{
2319	QEvent::Type type = QEvent::None;
2320	Qt::MouseButton button = Qt::NoButton;
2321	QWindow *window = e->window.data();
2322	const QPointingDevice *device = static_cast<const QPointingDevice *>(e->device);
2323	Q_ASSERT(device);
2324	QPointingDevicePrivate *devPriv = QPointingDevicePrivate::get(q: const_cast<QPointingDevice*>(device));
2325	bool positionChanged = QGuiApplicationPrivate::lastCursorPosition != e->globalPos;
2326	bool mouseMove = false;
2327	bool mousePress = false;
2328	const QPointF lastGlobalPosition = QGuiApplicationPrivate::lastCursorPosition;
2329	QPointF globalPoint = e->globalPos;
2330
2331	if (qIsNaN(d: e->globalPos.x()) || qIsNaN(d: e->globalPos.y())) {
2332	qWarning(msg: "QGuiApplicationPrivate::processMouseEvent: Got NaN in mouse position");
2333	return;
2334	}
2335
2336	type = e->buttonType;
2337	button = e->button;
2338
2339	if (type == QEvent::NonClientAreaMouseMove || type == QEvent::MouseMove)
2340	mouseMove = true;
2341	else if (type == QEvent::NonClientAreaMouseButtonPress || type == QEvent::MouseButtonPress)
2342	mousePress = true;
2343
2344	if (!mouseMove && positionChanged) {
2345	QWindowSystemInterfacePrivate::MouseEvent moveEvent(window, e->timestamp,
2346	e->localPos, e->globalPos, e->buttons ^ button, e->modifiers, Qt::NoButton,
2347	e->nonClientArea ? QEvent::NonClientAreaMouseMove : QEvent::MouseMove,
2348	e->source, e->nonClientArea, device, e->eventPointId);
2349	if (e->synthetic())
2350	moveEvent.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
2351	processMouseEvent(e: &moveEvent); // mouse move excluding state change
2352	processMouseEvent(e); // the original mouse event
2353	return;
2354	}
2355	if (type == QEvent::MouseMove && !positionChanged) {
2356	// On Windows, and possibly other platforms, a touchpad can send a mouse move
2357	// that does not change position, between a press and a release. This may
2358	// confuse applications, so we always filter out these mouse events for
2359	// consistent behavior among platforms.
2360	return;
2361	}
2362
2363	modifier_buttons = e->modifiers;
2364	QPointF localPoint = e->localPos;
2365	bool doubleClick = false;
2366	auto persistentEPD = devPriv->pointById(id: 0);
2367
2368	if (e->synthetic(); auto *originalDeviceEPD = devPriv->queryPointById(id: e->eventPointId))
2369	QMutableEventPoint::update(from: originalDeviceEPD->eventPoint, to&: persistentEPD->eventPoint);
2370
2371	if (mouseMove) {
2372	QGuiApplicationPrivate::lastCursorPosition = globalPoint;
2373	const auto doubleClickDistance = (e->device && e->device->type() == QInputDevice::DeviceType::Mouse ?
2374	mouseDoubleClickDistance : touchDoubleTapDistance);
2375	const auto pressPos = persistentEPD->eventPoint.globalPressPosition();
2376	if (qAbs(t: globalPoint.x() - pressPos.x()) > doubleClickDistance ||
2377	qAbs(t: globalPoint.y() - pressPos.y()) > doubleClickDistance)
2378	mousePressButton = Qt::NoButton;
2379	} else {
2380	static unsigned long lastPressTimestamp = 0;
2381	mouse_buttons = e->buttons;
2382	if (mousePress) {
2383	ulong doubleClickInterval = static_cast<ulong>(QGuiApplication::styleHints()->mouseDoubleClickInterval());
2384	doubleClick = e->timestamp - lastPressTimestamp
2385	< doubleClickInterval && button == mousePressButton;
2386	mousePressButton = button;
2387	lastPressTimestamp = e ->timestamp;
2388	}
2389	}
2390
2391	if (e->nullWindow()) {
2392	window = QGuiApplication::topLevelAt(pos: globalPoint.toPoint());
2393	if (window) {
2394	// Moves and the release following a press must go to the same
2395	// window, even if the cursor has moved on over another window.
2396	if (e->buttons != Qt::NoButton) {
2397	if (!currentMousePressWindow)
2398	currentMousePressWindow = window;
2399	else
2400	window = currentMousePressWindow;
2401	} else if (currentMousePressWindow) {
2402	window = currentMousePressWindow;
2403	currentMousePressWindow = nullptr;
2404	}
2405	localPoint = window->mapFromGlobal(pos: globalPoint);
2406	}
2407	}
2408
2409	if (!window)
2410	return;
2411
2412	#ifndef QT_NO_CURSOR
2413	if (!e->synthetic()) {
2414	if (const QScreen *screen = window->screen())
2415	if (QPlatformCursor *cursor = screen->handle()->cursor()) {
2416	const QPointF nativeLocalPoint = QHighDpi::toNativePixels(value: localPoint, context: screen);
2417	const QPointF nativeGlobalPoint = QHighDpi::toNativePixels(value: globalPoint, context: screen);
2418	QMouseEvent ev(type, nativeLocalPoint, nativeLocalPoint, nativeGlobalPoint,
2419	button, e->buttons, e->modifiers, e->source, device);
2420	// avoid incorrect velocity calculation: ev is in the native coordinate system,
2421	// but we need to consistently use the logical coordinate system for velocity
2422	// whenever QEventPoint::setTimestamp() is called
2423	ev.QInputEvent::setTimestamp(e->timestamp);
2424	cursor->pointerEvent(event: ev);
2425	}
2426	}
2427	#endif
2428
2429	const auto *activePopup = activePopupWindow();
2430	if (type == QEvent::MouseButtonPress)
2431	active_popup_on_press = activePopup;
2432	if (window->d_func()->blockedByModalWindow && !activePopup) {
2433	// a modal window is blocking this window, don't allow mouse events through
2434	return;
2435	}
2436
2437	QMouseEvent ev(type, localPoint, localPoint, globalPoint, button, e->buttons, e->modifiers, e->source, device);
2438	Q_ASSERT(devPriv->pointById(0) == persistentEPD); // we don't expect reallocation in QPlatformCursor::pointerEvenmt()
2439	// restore globalLastPosition to avoid invalidating the velocity calculations,
2440	// because the QPlatformCursor mouse event above was in native coordinates
2441	QMutableEventPoint::setGlobalLastPosition(p&: persistentEPD->eventPoint, arg: lastGlobalPosition);
2442	persistentEPD = nullptr; // incoming and synth events can cause reallocation during delivery, so don't use this again
2443	// ev now contains a detached copy of the QEventPoint from QPointingDevicePrivate::activePoints
2444	ev.setTimestamp(e->timestamp);
2445
2446	if (activePopup && activePopup != window && (!popup_closed_on_press || type == QEvent::MouseButtonRelease)) {
2447	// If the popup handles the event, we're done.
2448	auto *handlingPopup = window->d_func()->forwardToPopup(event: &ev, activePopupOnPress: active_popup_on_press);
2449	if (handlingPopup) {
2450	if (type == QEvent::MouseButtonPress)
2451	active_popup_on_press = handlingPopup;
2452	return;
2453	}
2454	}
2455
2456	if (doubleClick && (ev.type() == QEvent::MouseButtonPress)) {
2457	// QtBUG-25831, used to suppress delivery in qwidgetwindow.cpp
2458	QMutableSinglePointEvent::from(e&: ev).setDoubleClick();
2459	}
2460
2461	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &ev);
2462	e->eventAccepted = ev.isAccepted();
2463	if (!e->synthetic() && !ev.isAccepted()
2464	&& !e->nonClientArea
2465	&& qApp->testAttribute(attribute: Qt::AA_SynthesizeTouchForUnhandledMouseEvents)) {
2466	QList<QWindowSystemInterface::TouchPoint> points;
2467	QWindowSystemInterface::TouchPoint point;
2468	point.id = 1;
2469	point.area = QHighDpi::toNativePixels(value: QRectF(globalPoint.x() - 2, globalPoint.y() - 2, 4, 4), context: window);
2470
2471	// only translate left button related events to
2472	// avoid strange touch event sequences when several
2473	// buttons are pressed
2474	if (type == QEvent::MouseButtonPress && button == Qt::LeftButton) {
2475	point.state = QEventPoint::State::Pressed;
2476	} else if (type == QEvent::MouseButtonRelease && button == Qt::LeftButton) {
2477	point.state = QEventPoint::State::Released;
2478	} else if (type == QEvent::MouseMove && (e->buttons & Qt::LeftButton)) {
2479	point.state = QEventPoint::State::Updated;
2480	} else {
2481	return;
2482	}
2483
2484	points << point;
2485
2486	QEvent::Type type;
2487	const QList<QEventPoint> &touchPoints =
2488	QWindowSystemInterfacePrivate::fromNativeTouchPoints(points, window, type: &type);
2489
2490	QWindowSystemInterfacePrivate::TouchEvent fake(window, e->timestamp, type, device, touchPoints, e->modifiers);
2491	fake.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
2492	processTouchEvent(e: &fake);
2493	}
2494	if (doubleClick) {
2495	mousePressButton = Qt::NoButton;
2496	if (!e->window.isNull() || e->nullWindow()) { // QTBUG-36364, check if window closed in response to press
2497	const QEvent::Type doubleClickType = e->nonClientArea ? QEvent::NonClientAreaMouseButtonDblClick : QEvent::MouseButtonDblClick;
2498	QMouseEvent dblClickEvent(doubleClickType, localPoint, localPoint, globalPoint,
2499	button, e->buttons, e->modifiers, e->source, device);
2500	dblClickEvent.setTimestamp(e->timestamp);
2501	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &dblClickEvent);
2502	}
2503	}
2504	if (type == QEvent::MouseButtonRelease && e->buttons == Qt::NoButton) {
2505	popup_closed_on_press = false;
2506	if (auto *persistentEPD = devPriv->queryPointById(id: 0)) {
2507	ev.setExclusiveGrabber(point: persistentEPD->eventPoint, exclusiveGrabber: nullptr);
2508	ev.clearPassiveGrabbers(point: persistentEPD->eventPoint);
2509	}
2510	}
2511	}
2512
2513	void QGuiApplicationPrivate::processWheelEvent(QWindowSystemInterfacePrivate::WheelEvent *e)
2514	{
2515	#if QT_CONFIG(wheelevent)
2516	QWindow *window = e->window.data();
2517	QPointF globalPoint = e->globalPos;
2518	QPointF localPoint = e->localPos;
2519
2520	if (e->nullWindow()) {
2521	window = QGuiApplication::topLevelAt(pos: globalPoint.toPoint());
2522	if (window)
2523	localPoint = window->mapFromGlobal(pos: globalPoint);
2524	}
2525
2526	if (!window)
2527	return;
2528
2529	QGuiApplicationPrivate::lastCursorPosition = globalPoint;
2530	modifier_buttons = e->modifiers;
2531
2532	if (window->d_func()->blockedByModalWindow) {
2533	// a modal window is blocking this window, don't allow wheel events through
2534	return;
2535	}
2536
2537	const QPointingDevice *device = static_cast<const QPointingDevice *>(e->device);
2538	QWheelEvent ev(localPoint, globalPoint, e->pixelDelta, e->angleDelta,
2539	mouse_buttons, e->modifiers, e->phase, e->inverted, e->source, device);
2540	ev.setTimestamp(e->timestamp);
2541	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &ev);
2542	e->eventAccepted = ev.isAccepted();
2543	#else
2544	Q_UNUSED(e);
2545	#endif // QT_CONFIG(wheelevent)
2546	}
2547
2548	void QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent *e)
2549	{
2550	QWindow *window = e->window.data();
2551	modifier_buttons = e->modifiers;
2552	if (e->nullWindow()
2553	#ifdef Q_OS_ANDROID
2554	|| e->key == Qt::Key_Back || e->key == Qt::Key_Menu
2555	#endif
2556	) {
2557	window = QGuiApplication::focusWindow();
2558	}
2559
2560	if (!window) {
2561	e->eventAccepted = false;
2562	return;
2563	}
2564
2565	#if defined(Q_OS_ANDROID)
2566	static bool backKeyPressAccepted = false;
2567	static bool menuKeyPressAccepted = false;
2568	#endif
2569
2570	#if !defined(Q_OS_MACOS)
2571	// FIXME: Include OS X in this code path by passing the key event through
2572	// QPlatformInputContext::filterEvent().
2573	if (e->keyType == QEvent::KeyPress) {
2574	if (QWindowSystemInterface::handleShortcutEvent(window, timestamp: e->timestamp, k: e->key, mods: e->modifiers,
2575	nativeScanCode: e->nativeScanCode, nativeVirtualKey: e->nativeVirtualKey, nativeModifiers: e->nativeModifiers, text: e->unicode, autorep: e->repeat, count: e->repeatCount)) {
2576	#if defined(Q_OS_ANDROID)
2577	backKeyPressAccepted = e->key == Qt::Key_Back;
2578	menuKeyPressAccepted = e->key == Qt::Key_Menu;
2579	#endif
2580	return;
2581	}
2582	}
2583	#endif
2584
2585	QKeyEvent ev(e->keyType, e->key, e->modifiers,
2586	e->nativeScanCode, e->nativeVirtualKey, e->nativeModifiers,
2587	e->unicode, e->repeat, e->repeatCount);
2588	ev.setTimestamp(e->timestamp);
2589
2590	const auto *activePopup = activePopupWindow();
2591	if (activePopup && activePopup != window) {
2592	// If the popup handles the event, we're done.
2593	if (window->d_func()->forwardToPopup(event: &ev, activePopupOnPress: active_popup_on_press))
2594	return;
2595	}
2596
2597	// only deliver key events when we have a window, and no modal window is blocking this window
2598
2599	if (!window->d_func()->blockedByModalWindow)
2600	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &ev);
2601	#ifdef Q_OS_ANDROID
2602	else
2603	ev.setAccepted(false);
2604
2605	if (e->keyType == QEvent::KeyPress) {
2606	backKeyPressAccepted = e->key == Qt::Key_Back && ev.isAccepted();
2607	menuKeyPressAccepted = e->key == Qt::Key_Menu && ev.isAccepted();
2608	} else if (e->keyType == QEvent::KeyRelease) {
2609	if (e->key == Qt::Key_Back && !backKeyPressAccepted && !ev.isAccepted()) {
2610	if (window)
2611	QWindowSystemInterface::handleCloseEvent(window);
2612	} else if (e->key == Qt::Key_Menu && !menuKeyPressAccepted && !ev.isAccepted()) {
2613	platform_theme->showPlatformMenuBar();
2614	}
2615	}
2616	#endif
2617	e->eventAccepted = ev.isAccepted();
2618	}
2619
2620	void QGuiApplicationPrivate::processEnterEvent(QWindowSystemInterfacePrivate::EnterEvent *e)
2621	{
2622	if (!e->enter)
2623	return;
2624	if (e->enter.data()->d_func()->blockedByModalWindow) {
2625	// a modal window is blocking this window, don't allow enter events through
2626	return;
2627	}
2628
2629	currentMouseWindow = e->enter;
2630
2631	// TODO later: EnterEvent must report _which_ mouse entered the window; for now we assume primaryPointingDevice()
2632	QEnterEvent event(e->localPos, e->localPos, e->globalPos);
2633
2634	// Since we don't always track mouse moves that occur outside a window, any residual velocity
2635	// stored in the persistent QEventPoint may be inaccurate (especially in fast-moving autotests).
2636	// Reset the Kalman filter so that the velocity of the first mouse event after entering the window
2637	// will be based on a zero residual velocity (but the result can still be non-zero if the mouse
2638	// moves to a different position from where this enter event occurred; tests often do that).
2639	const QPointingDevicePrivate *devPriv = QPointingDevicePrivate::get(q: event.pointingDevice());
2640	auto epd = devPriv->queryPointById(id: event.points().first().id());
2641	Q_ASSERT(epd);
2642	QMutableEventPoint::setVelocity(p&: epd->eventPoint, arg: {});
2643
2644	QCoreApplication::sendSpontaneousEvent(receiver: e->enter.data(), event: &event);
2645	}
2646
2647	void QGuiApplicationPrivate::processLeaveEvent(QWindowSystemInterfacePrivate::LeaveEvent *e)
2648	{
2649	if (!e->leave)
2650	return;
2651	if (e->leave.data()->d_func()->blockedByModalWindow) {
2652	// a modal window is blocking this window, don't allow leave events through
2653	return;
2654	}
2655
2656	currentMouseWindow = nullptr;
2657
2658	QEvent event(QEvent::Leave);
2659	QCoreApplication::sendSpontaneousEvent(receiver: e->leave.data(), event: &event);
2660	}
2661
2662	void QGuiApplicationPrivate::processFocusWindowEvent(QWindowSystemInterfacePrivate::FocusWindowEvent *e)
2663	{
2664	QWindow *previous = QGuiApplicationPrivate::focus_window;
2665	QWindow *newFocus = e->focused.data();
2666
2667	if (previous == newFocus)
2668	return;
2669
2670	bool activatedPopup = false;
2671	if (newFocus) {
2672	if (QPlatformWindow *platformWindow = newFocus->handle())
2673	if (platformWindow->isAlertState())
2674	platformWindow->setAlertState(false);
2675	activatedPopup = (newFocus->flags() & Qt::WindowType_Mask) == Qt::Popup;
2676	if (activatedPopup)
2677	activatePopup(popup: newFocus);
2678	}
2679
2680	QObject *previousFocusObject = previous ? previous->focusObject() : nullptr;
2681
2682	if (previous) {
2683	QFocusEvent focusAboutToChange(QEvent::FocusAboutToChange);
2684	QCoreApplication::sendSpontaneousEvent(receiver: previous, event: &focusAboutToChange);
2685	}
2686
2687	QGuiApplicationPrivate::focus_window = newFocus;
2688	if (!qApp)
2689	return;
2690
2691	if (previous) {
2692	Qt::FocusReason r = e->reason;
2693	if ((r == Qt::OtherFocusReason || r == Qt::ActiveWindowFocusReason) && activatedPopup)
2694	r = Qt::PopupFocusReason;
2695	QFocusEvent focusOut(QEvent::FocusOut, r);
2696	QCoreApplication::sendSpontaneousEvent(receiver: previous, event: &focusOut);
2697	QObject::disconnect(sender: previous, SIGNAL(focusObjectChanged(QObject*)),
2698	qApp, SLOT(_q_updateFocusObject(QObject*)));
2699	} else if (!platformIntegration()->hasCapability(cap: QPlatformIntegration::ApplicationState)) {
2700	setApplicationState(state: Qt::ApplicationActive);
2701	}
2702
2703	if (QGuiApplicationPrivate::focus_window) {
2704	Qt::FocusReason r = e->reason;
2705	if ((r == Qt::OtherFocusReason || r == Qt::ActiveWindowFocusReason) &&
2706	previous && (previous->flags() & Qt::Popup) == Qt::Popup)
2707	r = Qt::PopupFocusReason;
2708	QFocusEvent focusIn(QEvent::FocusIn, r);
2709	QCoreApplication::sendSpontaneousEvent(receiver: QGuiApplicationPrivate::focus_window, event: &focusIn);
2710	QObject::connect(sender: QGuiApplicationPrivate::focus_window, SIGNAL(focusObjectChanged(QObject*)),
2711	qApp, SLOT(_q_updateFocusObject(QObject*)));
2712	} else if (!platformIntegration()->hasCapability(cap: QPlatformIntegration::ApplicationState)) {
2713	setApplicationState(state: Qt::ApplicationInactive);
2714	}
2715
2716	if (self) {
2717	self->notifyActiveWindowChange(previous);
2718
2719	if (previousFocusObject != qApp->focusObject() ||
2720	// We are getting an activation change but there is no new focusObject, and we also
2721	// don't have a previousFocusObject in the previously active window anymore. This can
2722	// happen when window gets destroyed (see QWidgetWindow::focusObject returning nullptr
2723	// when already in the QWidget destructor), so update the focusObject to avoid dangling
2724	// pointers. See also QWidget::clearFocus(), which tries to cover for this as well.
2725	(previous && previousFocusObject == nullptr && qApp->focusObject() == nullptr)) {
2726	self->_q_updateFocusObject(qApp->focusObject());
2727	}
2728	}
2729
2730	emit qApp->focusWindowChanged(focusWindow: newFocus);
2731	if (previous)
2732	emit previous->activeChanged();
2733	if (newFocus)
2734	emit newFocus->activeChanged();
2735	}
2736
2737	void QGuiApplicationPrivate::processWindowStateChangedEvent(QWindowSystemInterfacePrivate::WindowStateChangedEvent *wse)
2738	{
2739	if (QWindow *window = wse->window.data()) {
2740	QWindowPrivate *windowPrivate = qt_window_private(window);
2741	const auto originalEffectiveState = QWindowPrivate::effectiveState(windowPrivate->windowState);
2742
2743	windowPrivate->windowState = wse->newState;
2744	const auto newEffectiveState = QWindowPrivate::effectiveState(windowPrivate->windowState);
2745	if (newEffectiveState != originalEffectiveState)
2746	emit window->windowStateChanged(windowState: newEffectiveState);
2747
2748	windowPrivate->updateVisibility();
2749
2750	QWindowStateChangeEvent e(wse->oldState);
2751	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &e);
2752	}
2753	}
2754
2755	void QGuiApplicationPrivate::processWindowScreenChangedEvent(QWindowSystemInterfacePrivate::WindowScreenChangedEvent *wse)
2756	{
2757	QWindow *window = wse->window.data();
2758	if (!window)
2759	return;
2760
2761	if (window->screen() == wse->screen.data())
2762	return;
2763
2764	if (QWindow *topLevelWindow = window->d_func()->topLevelWindow(mode: QWindow::ExcludeTransients)) {
2765	if (QScreen *screen = wse->screen.data())
2766	topLevelWindow->d_func()->setTopLevelScreen(newScreen: screen, recreate: false /* recreate */);
2767	else // Fall back to default behavior, and try to find some appropriate screen
2768	topLevelWindow->setScreen(nullptr);
2769	}
2770	}
2771
2772	void QGuiApplicationPrivate::processWindowDevicePixelRatioChangedEvent(QWindowSystemInterfacePrivate::WindowDevicePixelRatioChangedEvent *wde)
2773	{
2774	if (wde->window.isNull())
2775	return;
2776	QWindowPrivate::get(window: wde->window)->updateDevicePixelRatio();
2777	}
2778
2779	void QGuiApplicationPrivate::processSafeAreaMarginsChangedEvent(QWindowSystemInterfacePrivate::SafeAreaMarginsChangedEvent *wse)
2780	{
2781	if (wse->window.isNull())
2782	return;
2783
2784	// Handle by forwarding directly to QWindowPrivate, instead of sending spontaneous
2785	// QEvent like most other functions, as there's no QEvent type for the safe area
2786	// change, and we don't want to add one until we know that this is a good API.
2787	qt_window_private(window: wse->window)->processSafeAreaMarginsChanged();
2788	}
2789
2790	void QGuiApplicationPrivate::processThemeChanged(QWindowSystemInterfacePrivate::ThemeChangeEvent *tce)
2791	{
2792	if (self)
2793	self->handleThemeChanged();
2794
2795	QIconPrivate::clearIconCache();
2796
2797	QEvent themeChangeEvent(QEvent::ThemeChange);
2798	const QWindowList windows = tce->window ? QWindowList{tce->window} : window_list;
2799	for (auto *window : windows)
2800	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &themeChangeEvent);
2801	}
2802
2803	void QGuiApplicationPrivate::handleThemeChanged()
2804	{
2805	const auto newColorScheme = platformTheme() ? platformTheme()->colorScheme()
2806	: Qt::ColorScheme::Unknown;
2807	QStyleHintsPrivate::get(q: QGuiApplication::styleHints())->updateColorScheme(colorScheme: newColorScheme);
2808
2809	updatePalette();
2810
2811	QIconLoader::instance()->updateSystemTheme();
2812	QAbstractFileIconProviderPrivate::clearIconTypeCache();
2813
2814	if (!(applicationResourceFlags & ApplicationFontExplicitlySet)) {
2815	const auto locker = qt_scoped_lock(mutex&: applicationFontMutex);
2816	clearFontUnlocked();
2817	initFontUnlocked();
2818	}
2819	initThemeHints();
2820	}
2821
2822	void QGuiApplicationPrivate::processGeometryChangeEvent(QWindowSystemInterfacePrivate::GeometryChangeEvent *e)
2823	{
2824	if (e->window.isNull())
2825	return;
2826
2827	QWindow *window = e->window.data();
2828	if (!window)
2829	return;
2830
2831	const QRect lastReportedGeometry = window->d_func()->geometry;
2832	const QRect requestedGeometry = e->requestedGeometry;
2833	const QRect actualGeometry = e->newGeometry;
2834
2835	// We send size and move events only if the geometry has changed from
2836	// what was last reported, or if the user tried to set a new geometry,
2837	// but the window manager responded by keeping the old geometry. In the
2838	// latter case we send move/resize events with the same geometry as the
2839	// last reported geometry, to indicate that the window wasn't moved or
2840	// resized. Note that this logic does not apply to the property changes
2841	// of the window, as we don't treat them as part of this request/response
2842	// protocol of QWindow/QPA.
2843	const bool isResize = actualGeometry.size() != lastReportedGeometry.size()
2844	|| requestedGeometry.size() != actualGeometry.size();
2845	const bool isMove = actualGeometry.topLeft() != lastReportedGeometry.topLeft()
2846	|| requestedGeometry.topLeft() != actualGeometry.topLeft();
2847
2848	window->d_func()->geometry = actualGeometry;
2849
2850	if (isResize || window->d_func()->resizeEventPending) {
2851	QResizeEvent e(actualGeometry.size(), lastReportedGeometry.size());
2852	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &e);
2853
2854	window->d_func()->resizeEventPending = false;
2855
2856	if (actualGeometry.width() != lastReportedGeometry.width())
2857	emit window->widthChanged(arg: actualGeometry.width());
2858	if (actualGeometry.height() != lastReportedGeometry.height())
2859	emit window->heightChanged(arg: actualGeometry.height());
2860	}
2861
2862	if (isMove) {
2863	//### frame geometry
2864	QMoveEvent e(actualGeometry.topLeft(), lastReportedGeometry.topLeft());
2865	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &e);
2866
2867	if (actualGeometry.x() != lastReportedGeometry.x())
2868	emit window->xChanged(arg: actualGeometry.x());
2869	if (actualGeometry.y() != lastReportedGeometry.y())
2870	emit window->yChanged(arg: actualGeometry.y());
2871	}
2872	}
2873
2874	void QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent *e)
2875	{
2876	if (e->window.isNull())
2877	return;
2878	if (e->window.data()->d_func()->blockedByModalWindow && !e->window.data()->d_func()->inClose) {
2879	// a modal window is blocking this window, don't allow close events through, unless they
2880	// originate from a call to QWindow::close.
2881	e->eventAccepted = false;
2882	return;
2883	}
2884
2885	QCloseEvent event;
2886	QGuiApplication::sendSpontaneousEvent(receiver: e->window.data(), event: &event);
2887
2888	e->eventAccepted = event.isAccepted();
2889	}
2890
2891	void QGuiApplicationPrivate::processFileOpenEvent(QWindowSystemInterfacePrivate::FileOpenEvent *e)
2892	{
2893	if (e->url.isEmpty())
2894	return;
2895
2896	QFileOpenEvent event(e->url);
2897	QGuiApplication::sendSpontaneousEvent(qApp, event: &event);
2898	}
2899
2900	QGuiApplicationPrivate::TabletPointData &QGuiApplicationPrivate::tabletDevicePoint(qint64 deviceId)
2901	{
2902	for (int i = 0; i < tabletDevicePoints.size(); ++i) {
2903	TabletPointData &pointData = tabletDevicePoints[i];
2904	if (pointData.deviceId == deviceId)
2905	return pointData;
2906	}
2907
2908	tabletDevicePoints.append(t: TabletPointData(deviceId));
2909	return tabletDevicePoints.last();
2910	}
2911
2912	void QGuiApplicationPrivate::processTabletEvent(QWindowSystemInterfacePrivate::TabletEvent *e)
2913	{
2914	#if QT_CONFIG(tabletevent)
2915	const auto device = static_cast<const QPointingDevice *>(e->device);
2916	TabletPointData &pointData = tabletDevicePoint(deviceId: device->uniqueId().numericId());
2917
2918	QEvent::Type type = QEvent::TabletMove;
2919	if (e->buttons != pointData.state)
2920	type = (e->buttons > pointData.state) ? QEvent::TabletPress : QEvent::TabletRelease;
2921
2922	QWindow *window = e->window.data();
2923	modifier_buttons = e->modifiers;
2924
2925	bool localValid = true;
2926	// If window is null, pick one based on the global position and make sure all
2927	// subsequent events up to the release are delivered to that same window.
2928	// If window is given, just send to that.
2929	if (type == QEvent::TabletPress) {
2930	if (e->nullWindow()) {
2931	window = QGuiApplication::topLevelAt(pos: e->global.toPoint());
2932	localValid = false;
2933	}
2934	if (!window)
2935	return;
2936	active_popup_on_press = activePopupWindow();
2937	pointData.target = window;
2938	} else {
2939	if (e->nullWindow()) {
2940	window = pointData.target;
2941	localValid = false;
2942	}
2943	if (type == QEvent::TabletRelease)
2944	pointData.target = nullptr;
2945	if (!window)
2946	return;
2947	}
2948	QPointF local = e->local;
2949	if (!localValid) {
2950	QPointF delta = e->global - e->global.toPoint();
2951	local = window->mapFromGlobal(pos: e->global.toPoint()) + delta;
2952	}
2953
2954	// TODO stop deducing the button state change here: rather require it from the platform plugin, as with mouse events
2955	Qt::MouseButtons stateChange = e->buttons ^ pointData.state;
2956	Qt::MouseButton button = Qt::NoButton;
2957	for (int check = Qt::LeftButton; check <= int(Qt::MaxMouseButton); check = check << 1) {
2958	if (check & stateChange) {
2959	button = Qt::MouseButton(check);
2960	break;
2961	}
2962	}
2963
2964	const auto *activePopup = activePopupWindow();
2965	if (window->d_func()->blockedByModalWindow && !activePopup) {
2966	// a modal window is blocking this window, don't allow events through
2967	return;
2968	}
2969
2970	QTabletEvent tabletEvent(type, device, local, e->global,
2971	e->pressure, e->xTilt, e->yTilt,
2972	e->tangentialPressure, e->rotation, e->z,
2973	e->modifiers, button, e->buttons);
2974	tabletEvent.setAccepted(false);
2975	tabletEvent.setTimestamp(e->timestamp);
2976
2977	if (activePopup && activePopup != window) {
2978	// If the popup handles the event, we're done.
2979	if (window->d_func()->forwardToPopup(event: &tabletEvent, activePopupOnPress: active_popup_on_press))
2980	return;
2981	}
2982
2983	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &tabletEvent);
2984	pointData.state = e->buttons;
2985	if (!tabletEvent.isAccepted()
2986	&& !QWindowSystemInterfacePrivate::TabletEvent::platformSynthesizesMouse
2987	&& qApp->testAttribute(attribute: Qt::AA_SynthesizeMouseForUnhandledTabletEvents)) {
2988
2989	const QEvent::Type mouseType = [&]() {
2990	switch (type) {
2991	case QEvent::TabletPress: return QEvent::MouseButtonPress;
2992	case QEvent::TabletMove: return QEvent::MouseMove;
2993	case QEvent::TabletRelease: return QEvent::MouseButtonRelease;
2994	default: Q_UNREACHABLE();
2995	}
2996	}();
2997	QWindowSystemInterfacePrivate::MouseEvent mouseEvent(window, e->timestamp, e->local,
2998	e->global, e->buttons, e->modifiers, button, mouseType, Qt::MouseEventNotSynthesized, false, device);
2999	mouseEvent.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
3000	qCDebug(lcPtrDispatch) << "synthesizing mouse from tablet event" << mouseType
3001	<< e->local << button << e->buttons << e->modifiers;
3002	processMouseEvent(e: &mouseEvent);
3003	}
3004	#else
3005	Q_UNUSED(e);
3006	#endif
3007	}
3008
3009	void QGuiApplicationPrivate::processTabletEnterProximityEvent(QWindowSystemInterfacePrivate::TabletEnterProximityEvent *e)
3010	{
3011	#if QT_CONFIG(tabletevent)
3012	const QPointingDevice *dev = static_cast<const QPointingDevice *>(e->device);
3013	QTabletEvent ev(QEvent::TabletEnterProximity, dev, QPointF(), QPointF(),
3014	0, 0, 0, 0, 0, 0, e->modifiers, Qt::NoButton,
3015	tabletDevicePoint(deviceId: dev->uniqueId().numericId()).state);
3016	ev.setTimestamp(e->timestamp);
3017	QGuiApplication::sendSpontaneousEvent(qGuiApp, event: &ev);
3018	#else
3019	Q_UNUSED(e);
3020	#endif
3021	}
3022
3023	void QGuiApplicationPrivate::processTabletLeaveProximityEvent(QWindowSystemInterfacePrivate::TabletLeaveProximityEvent *e)
3024	{
3025	#if QT_CONFIG(tabletevent)
3026	const QPointingDevice *dev = static_cast<const QPointingDevice *>(e->device);
3027	QTabletEvent ev(QEvent::TabletLeaveProximity, dev, QPointF(), QPointF(),
3028	0, 0, 0, 0, 0, 0, e->modifiers, Qt::NoButton,
3029	tabletDevicePoint(deviceId: dev->uniqueId().numericId()).state);
3030	ev.setTimestamp(e->timestamp);
3031	QGuiApplication::sendSpontaneousEvent(qGuiApp, event: &ev);
3032	#else
3033	Q_UNUSED(e);
3034	#endif
3035	}
3036
3037	#ifndef QT_NO_GESTURES
3038	void QGuiApplicationPrivate::processGestureEvent(QWindowSystemInterfacePrivate::GestureEvent *e)
3039	{
3040	if (e->window.isNull())
3041	return;
3042
3043	const QPointingDevice *device = static_cast<const QPointingDevice *>(e->device);
3044	QNativeGestureEvent ev(e->type, device, e->fingerCount, e->pos, e->pos, e->globalPos, (e->intValue ? e->intValue : e->realValue),
3045	e->delta, e->sequenceId);
3046	ev.setTimestamp(e->timestamp);
3047	QGuiApplication::sendSpontaneousEvent(receiver: e->window, event: &ev);
3048	}
3049	#endif // QT_NO_GESTURES
3050
3051	void QGuiApplicationPrivate::processPlatformPanelEvent(QWindowSystemInterfacePrivate::PlatformPanelEvent *e)
3052	{
3053	if (!e->window)
3054	return;
3055
3056	if (e->window->d_func()->blockedByModalWindow) {
3057	// a modal window is blocking this window, don't allow events through
3058	return;
3059	}
3060
3061	QEvent ev(QEvent::PlatformPanel);
3062	QGuiApplication::sendSpontaneousEvent(receiver: e->window.data(), event: &ev);
3063	}
3064
3065	#ifndef QT_NO_CONTEXTMENU
3066	void QGuiApplicationPrivate::processContextMenuEvent(QWindowSystemInterfacePrivate::ContextMenuEvent *e)
3067	{
3068	// Widgets do not care about mouse triggered context menu events. Also, do not forward event
3069	// to a window blocked by a modal window.
3070	if (!e->window || e->mouseTriggered || e->window->d_func()->blockedByModalWindow)
3071	return;
3072
3073	QContextMenuEvent ev(QContextMenuEvent::Keyboard, e->pos, e->globalPos, e->modifiers);
3074	QGuiApplication::sendSpontaneousEvent(receiver: e->window.data(), event: &ev);
3075	e->eventAccepted = ev.isAccepted();
3076	}
3077	#endif
3078
3079	void QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::TouchEvent *e)
3080	{
3081	if (!QInputDevicePrivate::isRegistered(dev: e->device))
3082	return;
3083
3084	modifier_buttons = e->modifiers;
3085	QPointingDevice *device = const_cast<QPointingDevice *>(static_cast<const QPointingDevice *>(e->device));
3086	QPointingDevicePrivate *devPriv = QPointingDevicePrivate::get(q: device);
3087
3088	if (e->touchType == QEvent::TouchCancel) {
3089	// The touch sequence has been canceled (e.g. by the compositor).
3090	// Send the TouchCancel to all windows with active touches and clean up.
3091	QTouchEvent touchEvent(QEvent::TouchCancel, device, e->modifiers);
3092	touchEvent.setTimestamp(e->timestamp);
3093	constexpr qsizetype Prealloc = decltype(devPriv->activePoints)::mapped_container_type::PreallocatedSize;
3094	QMinimalVarLengthFlatSet<QWindow *, Prealloc> windowsNeedingCancel;
3095
3096	for (auto &epd : devPriv->activePoints.values()) {
3097	if (QWindow *w = QMutableEventPoint::window(p: epd.eventPoint))
3098	windowsNeedingCancel.insert(v: w);
3099	}
3100
3101	for (QWindow *w : windowsNeedingCancel)
3102	QGuiApplication::sendSpontaneousEvent(receiver: w, event: &touchEvent);
3103
3104	if (!self->synthesizedMousePoints.isEmpty() && !e->synthetic()) {
3105	for (QHash<QWindow *, SynthesizedMouseData>::const_iterator synthIt = self->synthesizedMousePoints.constBegin(),
3106	synthItEnd = self->synthesizedMousePoints.constEnd(); synthIt != synthItEnd; ++synthIt) {
3107	if (!synthIt->window)
3108	continue;
3109	QWindowSystemInterfacePrivate::MouseEvent fake(synthIt->window.data(),
3110	e->timestamp,
3111	synthIt->pos,
3112	synthIt->screenPos,
3113	Qt::NoButton,
3114	e->modifiers,
3115	Qt::LeftButton,
3116	QEvent::MouseButtonRelease,
3117	Qt::MouseEventNotSynthesized,
3118	false,
3119	device);
3120	fake.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
3121	processMouseEvent(e: &fake);
3122	}
3123	self->synthesizedMousePoints.clear();
3124	}
3125	self->lastTouchType = e->touchType;
3126	return;
3127	}
3128
3129	// Prevent sending ill-formed event sequences: Cancel can only be followed by a Begin.
3130	if (self->lastTouchType == QEvent::TouchCancel && e->touchType != QEvent::TouchBegin)
3131	return;
3132
3133	self->lastTouchType = e->touchType;
3134
3135	QPointer<QWindow> window = e->window; // the platform hopefully tells us which window received the event
3136	QVarLengthArray<QMutableTouchEvent, 2> touchEvents;
3137
3138	// For each temporary QEventPoint from the QPA TouchEvent:
3139	// - update the persistent QEventPoint in QPointingDevicePrivate::activePoints with current values
3140	// - determine which window to deliver it to
3141	// - add it to the QTouchEvent instance for that window (QMutableTouchEvent::target() will be QWindow*, for now)
3142	for (auto &tempPt : e->points) {
3143	// update state
3144	auto epd = devPriv->pointById(id: tempPt.id());
3145	auto &ep = epd->eventPoint;
3146	epd->eventPoint.setAccepted(false);
3147	switch (tempPt.state()) {
3148	case QEventPoint::State::Pressed:
3149	// On touchpads, send all touch points to the same window.
3150	if (!window && e->device && e->device->type() == QInputDevice::DeviceType::TouchPad)
3151	window = devPriv->firstActiveWindow();
3152	// If the QPA event didn't tell us which window, find the one under the touchpoint position.
3153	if (!window)
3154	window = QGuiApplication::topLevelAt(pos: tempPt.globalPosition().toPoint());
3155	QMutableEventPoint::setWindow(p&: ep, arg: window);
3156	active_popup_on_press = activePopupWindow();
3157	break;
3158
3159	case QEventPoint::State::Released:
3160	if (Q_UNLIKELY(!window.isNull() && window != QMutableEventPoint::window(ep)))
3161	qCDebug(lcPtrDispatch) << "delivering touch release to same window"
3162	<< QMutableEventPoint::window(p: ep) << "not" << window.data();
3163	window = QMutableEventPoint::window(p: ep);
3164	break;
3165
3166	default: // update or stationary
3167	if (Q_UNLIKELY(!window.isNull() && window != QMutableEventPoint::window(ep)))
3168	qCDebug(lcPtrDispatch) << "delivering touch update to same window"
3169	<< QMutableEventPoint::window(p: ep) << "not" << window.data();
3170	window = QMutableEventPoint::window(p: ep);
3171	break;
3172	}
3173	// If we somehow still don't have a window, we can't deliver this touchpoint. (should never happen)
3174	if (Q_UNLIKELY(!window)) {
3175	qCDebug(lcPtrDispatch) << "skipping" << &tempPt << ": no target window";
3176	continue;
3177	}
3178	QMutableEventPoint::update(from: tempPt, to&: ep);
3179
3180	Q_ASSERT(window.data() != nullptr);
3181
3182	// make the *scene* position the same as the *global* position
3183	QMutableEventPoint::setScenePosition(p&: ep, arg: tempPt.globalPosition());
3184
3185	// store the scene position as local position, for now
3186	QMutableEventPoint::setPosition(p&: ep, arg: window->mapFromGlobal(pos: tempPt.globalPosition()));
3187
3188	// setTimeStamp has side effects, so we do it last
3189	QMutableEventPoint::setTimestamp(p&: ep, t: e->timestamp);
3190
3191	// add the touchpoint to the event that will be delivered to the window
3192	bool added = false;
3193	for (QMutableTouchEvent &ev : touchEvents) {
3194	if (ev.target() == window.data()) {
3195	ev.addPoint(point: ep);
3196	added = true;
3197	break;
3198	}
3199	}
3200	if (!added) {
3201	QMutableTouchEvent mte(e->touchType, device, e->modifiers, {ep});
3202	mte.setTimestamp(e->timestamp);
3203	mte.setTarget(window.data());
3204	touchEvents.append(t: mte);
3205	}
3206	}
3207
3208	if (touchEvents.isEmpty())
3209	return;
3210
3211	for (QMutableTouchEvent &touchEvent : touchEvents) {
3212	QWindow *window = static_cast<QWindow *>(touchEvent.target());
3213
3214	QEvent::Type eventType;
3215	switch (touchEvent.touchPointStates()) {
3216	case QEventPoint::State::Pressed:
3217	eventType = QEvent::TouchBegin;
3218	break;
3219	case QEventPoint::State::Released:
3220	eventType = QEvent::TouchEnd;
3221	break;
3222	default:
3223	eventType = QEvent::TouchUpdate;
3224	break;
3225	}
3226
3227	const auto *activePopup = activePopupWindow();
3228	if (window->d_func()->blockedByModalWindow && !activePopup) {
3229	// a modal window is blocking this window, don't allow touch events through
3230
3231	// QTBUG-37371 temporary fix; TODO: revisit when we have a forwarding solution
3232	if (touchEvent.type() == QEvent::TouchEnd) {
3233	// but don't leave dangling state: e.g.
3234	// QQuickWindowPrivate::itemForTouchPointId needs to be cleared.
3235	QTouchEvent touchEvent(QEvent::TouchCancel, device, e->modifiers);
3236	touchEvent.setTimestamp(e->timestamp);
3237	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &touchEvent);
3238	}
3239	continue;
3240	}
3241
3242	if (activePopup && activePopup != window) {
3243	// If the popup handles the event, we're done.
3244	if (window->d_func()->forwardToPopup(event: &touchEvent, activePopupOnPress: active_popup_on_press))
3245	return;
3246	}
3247
3248	// Note: after the call to sendSpontaneousEvent, touchEvent.position() will have
3249	// changed to reflect the local position inside the last (random) widget it tried
3250	// to deliver the touch event to, and will therefore be invalid afterwards.
3251	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &touchEvent);
3252
3253	if (!e->synthetic() && !touchEvent.isAccepted() && qApp->testAttribute(attribute: Qt::AA_SynthesizeMouseForUnhandledTouchEvents)) {
3254	// exclude devices which generate their own mouse events
3255	if (!(touchEvent.device()->capabilities().testFlag(flag: QInputDevice::Capability::MouseEmulation))) {
3256
3257	QEvent::Type mouseEventType = QEvent::MouseMove;
3258	Qt::MouseButton button = Qt::NoButton;
3259	Qt::MouseButtons buttons = Qt::LeftButton;
3260	if (eventType == QEvent::TouchBegin || m_fakeMouseSourcePointId < 0) {
3261	m_fakeMouseSourcePointId = touchEvent.point(i: 0).id();
3262	qCDebug(lcPtrDispatch) << "synthesizing mouse events from touchpoint" << m_fakeMouseSourcePointId;
3263	}
3264	if (m_fakeMouseSourcePointId >= 0) {
3265	const auto *touchPoint = touchEvent.pointById(id: m_fakeMouseSourcePointId);
3266	if (touchPoint) {
3267	switch (touchPoint->state()) {
3268	case QEventPoint::State::Pressed:
3269	mouseEventType = QEvent::MouseButtonPress;
3270	button = Qt::LeftButton;
3271	break;
3272	case QEventPoint::State::Released:
3273	mouseEventType = QEvent::MouseButtonRelease;
3274	button = Qt::LeftButton;
3275	buttons = Qt::NoButton;
3276	Q_ASSERT(m_fakeMouseSourcePointId == touchPoint->id());
3277	m_fakeMouseSourcePointId = -1;
3278	break;
3279	default:
3280	break;
3281	}
3282	if (touchPoint->state() != QEventPoint::State::Released) {
3283	self->synthesizedMousePoints.insert(key: window, value: SynthesizedMouseData(
3284	touchPoint->position(), touchPoint->globalPosition(), window));
3285	}
3286	// All touch events that are not accepted by the application will be translated to
3287	// left mouse button events instead (see AA_SynthesizeMouseForUnhandledTouchEvents docs).
3288	// Sending a QPA event (rather than simply sending a QMouseEvent) takes care of
3289	// side-effects such as double-click synthesis.
3290	QWindowSystemInterfacePrivate::MouseEvent fake(window, e->timestamp,
3291	window->mapFromGlobal(pos: touchPoint->globalPosition().toPoint()),
3292	touchPoint->globalPosition(),
3293	buttons,
3294	e->modifiers,
3295	button,
3296	mouseEventType,
3297	Qt::MouseEventSynthesizedByQt,
3298	false,
3299	device,
3300	touchPoint->id());
3301	fake.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic;
3302	processMouseEvent(e: &fake);
3303	}
3304	}
3305	if (eventType == QEvent::TouchEnd)
3306	self->synthesizedMousePoints.clear();
3307	}
3308	}
3309	}
3310
3311	// Remove released points from QPointingDevicePrivate::activePoints only after the event is
3312	// delivered. Widgets and Qt Quick are allowed to access them at any time before this.
3313	for (const QEventPoint &touchPoint : e->points) {
3314	if (touchPoint.state() == QEventPoint::State::Released)
3315	devPriv->removePointById(id: touchPoint.id());
3316	}
3317	}
3318
3319	void QGuiApplicationPrivate::processScreenOrientationChange(QWindowSystemInterfacePrivate::ScreenOrientationEvent *e)
3320	{
3321	// This operation only makes sense after the QGuiApplication constructor runs
3322	if (QCoreApplication::startingUp())
3323	return;
3324
3325	if (!e->screen)
3326	return;
3327
3328	QScreen *s = e->screen.data();
3329	s->d_func()->orientation = e->orientation;
3330
3331	emit s->orientationChanged(orientation: s->orientation());
3332
3333	QScreenOrientationChangeEvent event(s, s->orientation());
3334	QCoreApplication::sendEvent(receiver: QCoreApplication::instance(), event: &event);
3335	}
3336
3337	void QGuiApplicationPrivate::processScreenGeometryChange(QWindowSystemInterfacePrivate::ScreenGeometryEvent *e)
3338	{
3339	// This operation only makes sense after the QGuiApplication constructor runs
3340	if (QCoreApplication::startingUp())
3341	return;
3342
3343	if (!e->screen)
3344	return;
3345
3346	{
3347	QScreen *s = e->screen.data();
3348	QScreenPrivate::UpdateEmitter updateEmitter(s);
3349
3350	// Note: The incoming geometries have already been scaled by QHighDpi
3351	// in the QWSI layer, so we don't need to call updateGeometry() here.
3352	s->d_func()->geometry = e->geometry;
3353	s->d_func()->availableGeometry = e->availableGeometry;
3354
3355	s->d_func()->updatePrimaryOrientation();
3356	}
3357
3358	resetCachedDevicePixelRatio();
3359	}
3360
3361	void QGuiApplicationPrivate::processScreenLogicalDotsPerInchChange(QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent *e)
3362	{
3363	// This operation only makes sense after the QGuiApplication constructor runs
3364	if (QCoreApplication::startingUp())
3365	return;
3366
3367	QHighDpiScaling::updateHighDpiScaling();
3368
3369	if (!e->screen)
3370	return;
3371
3372	{
3373	QScreen *s = e->screen.data();
3374	QScreenPrivate::UpdateEmitter updateEmitter(s);
3375	s->d_func()->logicalDpi = QDpi(e->dpiX, e->dpiY);
3376	s->d_func()->updateGeometry();
3377	}
3378
3379	for (QWindow *window : QGuiApplication::allWindows())
3380	if (window->screen() == e->screen)
3381	QWindowPrivate::get(window)->updateDevicePixelRatio();
3382
3383	resetCachedDevicePixelRatio();
3384	}
3385
3386	void QGuiApplicationPrivate::processScreenRefreshRateChange(QWindowSystemInterfacePrivate::ScreenRefreshRateEvent *e)
3387	{
3388	// This operation only makes sense after the QGuiApplication constructor runs
3389	if (QCoreApplication::startingUp())
3390	return;
3391
3392	if (!e->screen)
3393	return;
3394
3395	QScreen *s = e->screen.data();
3396	qreal rate = e->rate;
3397	// safeguard ourselves against buggy platform behavior...
3398	if (rate < 1.0)
3399	rate = 60.0;
3400	if (!qFuzzyCompare(p1: s->d_func()->refreshRate, p2: rate)) {
3401	s->d_func()->refreshRate = rate;
3402	emit s->refreshRateChanged(refreshRate: s->refreshRate());
3403	}
3404	}
3405
3406	void QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent *e)
3407	{
3408	if (!e->window)
3409	return;
3410
3411	QWindow *window = e->window.data();
3412	if (!window)
3413	return;
3414	QWindowPrivate *p = qt_window_private(window);
3415
3416	if (!p->receivedExpose) {
3417	if (p->resizeEventPending) {
3418	// as a convenience for plugins, send a resize event before the first expose event if they haven't done so
3419	// window->geometry() should have a valid size as soon as a handle exists.
3420	QResizeEvent e(window->geometry().size(), p->geometry.size());
3421	QGuiApplication::sendSpontaneousEvent(receiver: window, event: &e);
3422
3423	p->resizeEventPending = false;
3424	}
3425
3426	// FIXME: It would logically make sense to set this _after_ we've sent the
3427	// expose event to the window, to mark that it now has received an expose.
3428	// But some parts of Qt (mis)use this private member to check whether the
3429	// window has been mapped yet, which they do in code that is triggered
3430	// by the very same expose event we send below. To keep the code working
3431	// we need to set the variable up front, until the code has been fixed.
3432	p->receivedExpose = true;
3433	}
3434
3435	// If the platform does not send paint events we need to synthesize them from expose events
3436	const bool shouldSynthesizePaintEvents = !platformIntegration()->hasCapability(cap: QPlatformIntegration::PaintEvents);
3437
3438	const bool wasExposed = p->exposed;
3439	p->exposed = e->isExposed && window->screen();
3440
3441	// We expect that the platform plugins send DevicePixelRatioChange events.
3442	// As a fail-safe make a final check here to make sure the cached DPR value is
3443	// always up to date before sending the expose event.
3444	if (e->isExposed && !e->region.isEmpty()) {
3445	const bool dprWasChanged = QWindowPrivate::get(window)->updateDevicePixelRatio();
3446	if (dprWasChanged)
3447	qWarning() << "The cached device pixel ratio value was stale on window expose. "
3448	<< "Please file a QTBUG which explains how to reproduce.";
3449	}
3450
3451	// We treat expose events for an already exposed window as paint events
3452	if (wasExposed && p->exposed && shouldSynthesizePaintEvents) {
3453	QPaintEvent paintEvent(e->region);
3454	QCoreApplication::sendSpontaneousEvent(receiver: window, event: &paintEvent);
3455	if (paintEvent.isAccepted())
3456	return; // No need to send expose
3457
3458	// The paint event was not accepted, so we fall through and send an expose
3459	// event instead, to maintain compatibility for clients that haven't adopted
3460	// paint events yet.
3461	}
3462
3463	QExposeEvent exposeEvent(e->region);
3464	QCoreApplication::sendSpontaneousEvent(receiver: window, event: &exposeEvent);
3465	e->eventAccepted = exposeEvent.isAccepted();
3466
3467	// If the window was just exposed we also need to send a paint event,
3468	// so that clients that implement paint events will draw something.
3469	// Note that we we can not skip this based on the expose event being
3470	// accepted, as clients may implement exposeEvent to track the state
3471	// change, but without drawing anything.
3472	if (!wasExposed && p->exposed && shouldSynthesizePaintEvents) {
3473	QPaintEvent paintEvent(e->region);
3474	QCoreApplication::sendSpontaneousEvent(receiver: window, event: &paintEvent);
3475	}
3476	}
3477
3478	void QGuiApplicationPrivate::processPaintEvent(QWindowSystemInterfacePrivate::PaintEvent *e)
3479	{
3480	Q_ASSERT_X(platformIntegration()->hasCapability(QPlatformIntegration::PaintEvents), "QGuiApplication",
3481	"The platform sent paint events without claiming support for it in QPlatformIntegration::capabilities()");
3482
3483	if (!e->window)
3484	return;
3485
3486	QPaintEvent paintEvent(e->region);
3487	QCoreApplication::sendSpontaneousEvent(receiver: e->window, event: &paintEvent);
3488
3489	// We report back the accepted state to the platform, so that it can
3490	// decide when the best time to send the fallback expose event is.
3491	e->eventAccepted = paintEvent.isAccepted();
3492	}
3493
3494	#if QT_CONFIG(draganddrop)
3495
3496	/*! \internal
3497
3498	This function updates an internal state to keep the source compatibility.
3499	### Qt 6 - Won't need after QTBUG-73829
3500	*/
3501	static void updateMouseAndModifierButtonState(Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
3502	{
3503	QGuiApplicationPrivate::mouse_buttons = buttons;
3504	QGuiApplicationPrivate::modifier_buttons = modifiers;
3505	}
3506
3507	QPlatformDragQtResponse QGuiApplicationPrivate::processDrag(QWindow *w, const QMimeData *dropData,
3508	const QPoint &p, Qt::DropActions supportedActions,
3509	Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
3510	{
3511	updateMouseAndModifierButtonState(buttons, modifiers);
3512
3513	static Qt::DropAction lastAcceptedDropAction = Qt::IgnoreAction;
3514	QPlatformDrag *platformDrag = platformIntegration()->drag();
3515	if (!platformDrag || (w && w->d_func()->blockedByModalWindow)) {
3516	lastAcceptedDropAction = Qt::IgnoreAction;
3517	return QPlatformDragQtResponse(false, lastAcceptedDropAction, QRect());
3518	}
3519
3520	if (!dropData) {
3521	currentDragWindow = nullptr;
3522	QDragLeaveEvent e;
3523	QGuiApplication::sendEvent(receiver: w, event: &e);
3524	lastAcceptedDropAction = Qt::IgnoreAction;
3525	return QPlatformDragQtResponse(false, lastAcceptedDropAction, QRect());
3526	}
3527	QDragMoveEvent me(p, supportedActions, dropData, buttons, modifiers);
3528
3529	if (w != currentDragWindow) {
3530	lastAcceptedDropAction = Qt::IgnoreAction;
3531	if (currentDragWindow) {
3532	QDragLeaveEvent e;
3533	QGuiApplication::sendEvent(receiver: currentDragWindow, event: &e);
3534	}
3535	currentDragWindow = w;
3536	QDragEnterEvent e(p, supportedActions, dropData, buttons, modifiers);
3537	QGuiApplication::sendEvent(receiver: w, event: &e);
3538	if (e.isAccepted() && e.dropAction() != Qt::IgnoreAction)
3539	lastAcceptedDropAction = e.dropAction();
3540	}
3541
3542	// Handling 'DragEnter' should suffice for the application.
3543	if (lastAcceptedDropAction != Qt::IgnoreAction
3544	&& (supportedActions & lastAcceptedDropAction)) {
3545	me.setDropAction(lastAcceptedDropAction);
3546	me.accept();
3547	}
3548	QGuiApplication::sendEvent(receiver: w, event: &me);
3549	lastAcceptedDropAction = me.isAccepted() ?
3550	me.dropAction() : Qt::IgnoreAction;
3551	return QPlatformDragQtResponse(me.isAccepted(), lastAcceptedDropAction, me.answerRect());
3552	}
3553
3554	QPlatformDropQtResponse QGuiApplicationPrivate::processDrop(QWindow *w, const QMimeData *dropData,
3555	const QPoint &p, Qt::DropActions supportedActions,
3556	Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
3557	{
3558	updateMouseAndModifierButtonState(buttons, modifiers);
3559
3560	currentDragWindow = nullptr;
3561
3562	QDropEvent de(p, supportedActions, dropData, buttons, modifiers);
3563	QGuiApplication::sendEvent(receiver: w, event: &de);
3564
3565	Qt::DropAction acceptedAction = de.isAccepted() ? de.dropAction() : Qt::IgnoreAction;
3566	QPlatformDropQtResponse response(de.isAccepted(),acceptedAction);
3567	return response;
3568	}
3569
3570	#endif // QT_CONFIG(draganddrop)
3571
3572	#ifndef QT_NO_CLIPBOARD
3573	/*!
3574	Returns the object for interacting with the clipboard.
3575	*/
3576	QClipboard * QGuiApplication::clipboard()
3577	{
3578	if (QGuiApplicationPrivate::qt_clipboard == nullptr) {
3579	if (!qApp) {
3580	qWarning(msg: "QGuiApplication: Must construct a QGuiApplication before accessing a QClipboard");
3581	return nullptr;
3582	}
3583	QGuiApplicationPrivate::qt_clipboard = new QClipboard(nullptr);
3584	}
3585	return QGuiApplicationPrivate::qt_clipboard;
3586	}
3587	#endif
3588
3589	/*!
3590	\since 5.4
3591	\fn void QGuiApplication::paletteChanged(const QPalette &palette)
3592	\deprecated [6.0] Handle QEvent::ApplicationPaletteChange instead.
3593
3594	This signal is emitted when the \a palette of the application changes. Use
3595	QEvent::ApplicationPaletteChanged instead.
3596
3597	\sa palette()
3598	*/
3599
3600	/*!
3601	Returns the current application palette.
3602
3603	Roles that have not been explicitly set will reflect the system's platform theme.
3604
3605	\sa setPalette()
3606	*/
3607
3608	QPalette QGuiApplication::palette()
3609	{
3610	if (!QGuiApplicationPrivate::app_pal)
3611	QGuiApplicationPrivate::updatePalette();
3612
3613	return *QGuiApplicationPrivate::app_pal;
3614	}
3615
3616	void QGuiApplicationPrivate::updatePalette()
3617	{
3618	if (app_pal) {
3619	if (setPalette(*app_pal) && qGuiApp)
3620	qGuiApp->d_func()->handlePaletteChanged();
3621	} else {
3622	setPalette(QPalette());
3623	}
3624	}
3625
3626	QEvent::Type QGuiApplicationPrivate::contextMenuEventType()
3627	{
3628	switch (QGuiApplication::styleHints()->contextMenuTrigger()) {
3629	case Qt::ContextMenuTrigger::Press: return QEvent::MouseButtonPress;
3630	case Qt::ContextMenuTrigger::Release: return QEvent::MouseButtonRelease;
3631	}
3632	return QEvent::None;
3633	}
3634
3635	void QGuiApplicationPrivate::clearPalette()
3636	{
3637	delete app_pal;
3638	app_pal = nullptr;
3639	}
3640
3641	/*!
3642	Changes the application palette to \a pal.
3643
3644	The color roles from this palette are combined with the system's platform
3645	theme to form the application's final palette.
3646
3647	\sa palette()
3648	*/
3649	void QGuiApplication::setPalette(const QPalette &pal)
3650	{
3651	if (QGuiApplicationPrivate::setPalette(pal) && qGuiApp)
3652	qGuiApp->d_func()->handlePaletteChanged();
3653	}
3654
3655	bool QGuiApplicationPrivate::setPalette(const QPalette &palette)
3656	{
3657	// Resolve the palette against the theme palette, filling in
3658	// any missing roles, while keeping the original resolve mask.
3659	QPalette basePalette = qGuiApp ? qGuiApp->d_func()->basePalette() : Qt::gray;
3660	basePalette.setResolveMask(0); // The base palette only contributes missing colors roles
3661	QPalette resolvedPalette = palette.resolve(other: basePalette);
3662
3663	if (app_pal && resolvedPalette == *app_pal && resolvedPalette.resolveMask() == app_pal->resolveMask())
3664	return false;
3665
3666	if (!app_pal)
3667	app_pal = new QPalette(resolvedPalette);
3668	else
3669	*app_pal = resolvedPalette;
3670
3671	QCoreApplication::setAttribute(attribute: Qt::AA_SetPalette, on: app_pal->resolveMask() != 0);
3672
3673	return true;
3674	}
3675
3676	/*
3677	Returns the base palette used to fill in missing roles in
3678	the current application palette.
3679
3680	Normally this is the theme palette, but QApplication
3681	overrides this for compatibility reasons.
3682	*/
3683	QPalette QGuiApplicationPrivate::basePalette() const
3684	{
3685	const auto pf = platformTheme();
3686	return pf && pf->palette() ? *pf->palette() : Qt::gray;
3687	}
3688
3689	void QGuiApplicationPrivate::handlePaletteChanged(const char *className)
3690	{
3691	#if QT_DEPRECATED_SINCE(6, 0)
3692	if (!className) {
3693	Q_ASSERT(app_pal);
3694	QT_WARNING_PUSH
3695	QT_WARNING_DISABLE_DEPRECATED
3696	emit qGuiApp->paletteChanged(pal: *QGuiApplicationPrivate::app_pal);
3697	QT_WARNING_POP
3698	}
3699	#else
3700	Q_UNUSED(className);
3701	#endif // QT_DEPRECATED_SINCE(6, 0)
3702
3703	if (is_app_running && !is_app_closing) {
3704	QEvent event(QEvent::ApplicationPaletteChange);
3705	QGuiApplication::sendEvent(qGuiApp, event: &event);
3706	}
3707	}
3708
3709	void QGuiApplicationPrivate::applyWindowGeometrySpecificationTo(QWindow *window)
3710	{
3711	windowGeometrySpecification.applyTo(window);
3712	}
3713
3714	/*!
3715	\since 5.11
3716	\fn void QGuiApplication::fontChanged(const QFont &font)
3717	\deprecated [6.0] Handle QEvent::ApplicationFontChange instead.
3718
3719	This signal is emitted when the \a font of the application changes. Use
3720	QEvent::ApplicationFontChanged instead.
3721
3722	\sa font()
3723	*/
3724
3725	/*!
3726	Returns the default application font.
3727
3728	\sa setFont()
3729	*/
3730	QFont QGuiApplication::font()
3731	{
3732	const auto locker = qt_scoped_lock(mutex&: applicationFontMutex);
3733	if (!QGuiApplicationPrivate::self && !QGuiApplicationPrivate::app_font) {
3734	qWarning(msg: "QGuiApplication::font(): no QGuiApplication instance and no application font set.");
3735	return QFont(); // in effect: QFont((QFontPrivate*)nullptr), so no recursion
3736	}
3737	initFontUnlocked();
3738	return *QGuiApplicationPrivate::app_font;
3739	}
3740
3741	/*!
3742	Changes the default application font to \a font.
3743
3744	\sa font()
3745	*/
3746	void QGuiApplication::setFont(const QFont &font)
3747	{
3748	auto locker = qt_unique_lock(mutex&: applicationFontMutex);
3749	const bool emitChange = !QGuiApplicationPrivate::app_font
3750	|| (*QGuiApplicationPrivate::app_font != font);
3751	if (!QGuiApplicationPrivate::app_font)
3752	QGuiApplicationPrivate::app_font = new QFont(font);
3753	else
3754	*QGuiApplicationPrivate::app_font = font;
3755	applicationResourceFlags |= ApplicationFontExplicitlySet;
3756
3757	if (emitChange && qGuiApp) {
3758	auto font = *QGuiApplicationPrivate::app_font;
3759	locker.unlock();
3760	#if QT_DEPRECATED_SINCE(6, 0)
3761	QT_WARNING_PUSH
3762	QT_WARNING_DISABLE_DEPRECATED
3763	emit qGuiApp->fontChanged(font);
3764	QT_WARNING_POP
3765	#else
3766	Q_UNUSED(font);
3767	#endif // QT_DEPRECATED_SINCE(6, 0)
3768	QEvent event(QEvent::ApplicationFontChange);
3769	QGuiApplication::sendEvent(qGuiApp, event: &event);
3770	}
3771	}
3772
3773	/*!
3774	\fn bool QGuiApplication::isRightToLeft()
3775
3776	Returns \c true if the application's layout direction is
3777	Qt::RightToLeft; otherwise returns \c false.
3778
3779	\sa layoutDirection(), isLeftToRight()
3780	*/
3781
3782	/*!
3783	\fn bool QGuiApplication::isLeftToRight()
3784
3785	Returns \c true if the application's layout direction is
3786	Qt::LeftToRight; otherwise returns \c false.
3787
3788	\sa layoutDirection(), isRightToLeft()
3789	*/
3790
3791	void QGuiApplicationPrivate::notifyLayoutDirectionChange()
3792	{
3793	const QWindowList list = QGuiApplication::topLevelWindows();
3794	for (int i = 0; i < list.size(); ++i) {
3795	QEvent ev(QEvent::ApplicationLayoutDirectionChange);
3796	QCoreApplication::sendEvent(receiver: list.at(i), event: &ev);
3797	}
3798	}
3799
3800	void QGuiApplicationPrivate::notifyActiveWindowChange(QWindow *prev)
3801	{
3802	if (prev) {
3803	QEvent de(QEvent::WindowDeactivate);
3804	QCoreApplication::sendEvent(receiver: prev, event: &de);
3805	}
3806	if (self->focus_window) {
3807	QEvent ae(QEvent::WindowActivate);
3808	QCoreApplication::sendEvent(receiver: focus_window, event: &ae);
3809	}
3810	}
3811
3812	/*!
3813	\property QGuiApplication::windowIcon
3814	\brief the default window icon
3815
3816	\sa QWindow::setIcon(), {Setting the Application Icon}
3817	*/
3818	QIcon QGuiApplication::windowIcon()
3819	{
3820	return QGuiApplicationPrivate::app_icon ? *QGuiApplicationPrivate::app_icon : QIcon();
3821	}
3822
3823	void QGuiApplication::setWindowIcon(const QIcon &icon)
3824	{
3825	if (!QGuiApplicationPrivate::app_icon)
3826	QGuiApplicationPrivate::app_icon = new QIcon();
3827	*QGuiApplicationPrivate::app_icon = icon;
3828	if (QGuiApplicationPrivate::platform_integration
3829	&& QGuiApplicationPrivate::platform_integration->hasCapability(cap: QPlatformIntegration::ApplicationIcon))
3830	QGuiApplicationPrivate::platform_integration->setApplicationIcon(icon);
3831	if (QGuiApplicationPrivate::is_app_running && !QGuiApplicationPrivate::is_app_closing)
3832	QGuiApplicationPrivate::self->notifyWindowIconChanged();
3833	}
3834
3835	void QGuiApplicationPrivate::notifyWindowIconChanged()
3836	{
3837	QEvent ev(QEvent::ApplicationWindowIconChange);
3838	const QWindowList list = QGuiApplication::topLevelWindows();
3839	for (int i = 0; i < list.size(); ++i)
3840	QCoreApplication::sendEvent(receiver: list.at(i), event: &ev);
3841	}
3842
3843
3844
3845	/*!
3846	\property QGuiApplication::quitOnLastWindowClosed
3847
3848	\brief whether the application implicitly quits when the last window is
3849	closed.
3850
3851	The default is \c true.
3852
3853	If this property is \c true, the application will attempt to
3854	quit when the last visible \l{Primary and Secondary Windows}{primary window}
3855	(i.e. top level window with no transient parent) is closed.
3856
3857	Note that attempting a quit may not necessarily result in the
3858	application quitting, for example if there still are active
3859	QEventLoopLocker instances, or the QEvent::Quit event is ignored.
3860
3861	\sa quit(), QWindow::close()
3862	*/
3863
3864	void QGuiApplication::setQuitOnLastWindowClosed(bool quit)
3865	{
3866	QGuiApplicationPrivate::quitOnLastWindowClosed = quit;
3867	}
3868
3869	bool QGuiApplication::quitOnLastWindowClosed()
3870	{
3871	return QGuiApplicationPrivate::quitOnLastWindowClosed;
3872	}
3873
3874	void QGuiApplicationPrivate::maybeLastWindowClosed()
3875	{
3876	if (!lastWindowClosed())
3877	return;
3878
3879	if (in_exec)
3880	emit q_func()->lastWindowClosed();
3881
3882	if (quitOnLastWindowClosed && canQuitAutomatically())
3883	quitAutomatically();
3884	}
3885
3886	/*!
3887	\fn void QGuiApplication::lastWindowClosed()
3888
3889	This signal is emitted from exec() when the last visible
3890	\l{Primary and Secondary Windows}{primary window} (i.e.
3891	top level window with no transient parent) is closed.
3892
3893	By default, QGuiApplication quits after this signal is emitted. This feature
3894	can be turned off by setting \l quitOnLastWindowClosed to \c false.
3895
3896	\sa QWindow::close(), QWindow::isTopLevel(), QWindow::transientParent()
3897	*/
3898
3899	bool QGuiApplicationPrivate::lastWindowClosed() const
3900	{
3901	for (auto *window : QGuiApplication::topLevelWindows()) {
3902	auto *windowPrivate = qt_window_private(window);
3903	if (!windowPrivate->participatesInLastWindowClosed())
3904	continue;
3905
3906	if (windowPrivate->treatAsVisible())
3907	return false;
3908	}
3909
3910	return true;
3911	}
3912
3913	bool QGuiApplicationPrivate::canQuitAutomatically()
3914	{
3915	// The automatic quit functionality is triggered by
3916	// both QEventLoopLocker and maybeLastWindowClosed.
3917	// Although the former is a QCoreApplication feature
3918	// we don't want to quit the application when there
3919	// are open windows, regardless of whether the app
3920	// also quits automatically on maybeLastWindowClosed.
3921	if (!lastWindowClosed())
3922	return false;
3923
3924	return QCoreApplicationPrivate::canQuitAutomatically();
3925	}
3926
3927	void QGuiApplicationPrivate::quit()
3928	{
3929	if (auto *platformIntegration = QGuiApplicationPrivate::platformIntegration())
3930	platformIntegration->quit();
3931	else
3932	QCoreApplicationPrivate::quit();
3933	}
3934
3935	void QGuiApplicationPrivate::processApplicationTermination(QWindowSystemInterfacePrivate::WindowSystemEvent *windowSystemEvent)
3936	{
3937	QEvent event(QEvent::Quit);
3938	QGuiApplication::sendSpontaneousEvent(receiver: QGuiApplication::instance(), event: &event);
3939	windowSystemEvent->eventAccepted = event.isAccepted();
3940	}
3941
3942	/*!
3943	\since 5.2
3944	\fn Qt::ApplicationState QGuiApplication::applicationState()
3945
3946
3947	Returns the current state of the application.
3948
3949	You can react to application state changes to perform actions such as
3950	stopping/resuming CPU-intensive tasks, freeing/loading resources or
3951	saving/restoring application data.
3952	*/
3953
3954	Qt::ApplicationState QGuiApplication::applicationState()
3955	{
3956	return QGuiApplicationPrivate::applicationState;
3957	}
3958
3959	/*!
3960	\since 5.14
3961
3962	Sets the high-DPI scale factor rounding policy for the application. The
3963	\a policy decides how non-integer scale factors (such as Windows 150%) are
3964	handled.
3965
3966	The two principal options are whether fractional scale factors should
3967	be rounded to an integer or not. Keeping the scale factor as-is will
3968	make the user interface size match the OS setting exactly, but may cause
3969	painting errors, for example with the Windows style.
3970
3971	If rounding is wanted, then which type of rounding should be decided
3972	next. Mathematically correct rounding is supported but may not give
3973	the best visual results: Consider if you want to render 1.5x as 1x
3974	("small UI") or as 2x ("large UI"). See the Qt::HighDpiScaleFactorRoundingPolicy
3975	enum for a complete list of all options.
3976
3977	This function must be called before creating the application object.
3978	The QGuiApplication::highDpiScaleFactorRoundingPolicy()
3979	accessor will reflect the environment, if set.
3980
3981	The default value is Qt::HighDpiScaleFactorRoundingPolicy::PassThrough.
3982	*/
3983	void QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy policy)
3984	{
3985	if (qApp)
3986	qWarning(msg: "setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance");
3987	QGuiApplicationPrivate::highDpiScaleFactorRoundingPolicy = policy;
3988	}
3989
3990	/*!
3991	\since 5.14
3992
3993	Returns the high-DPI scale factor rounding policy.
3994	*/
3995	Qt::HighDpiScaleFactorRoundingPolicy QGuiApplication::highDpiScaleFactorRoundingPolicy()
3996	{
3997	return QGuiApplicationPrivate::highDpiScaleFactorRoundingPolicy;
3998	}
3999
4000	/*!
4001	\since 5.2
4002	\fn void QGuiApplication::applicationStateChanged(Qt::ApplicationState state)
4003
4004	This signal is emitted when the \a state of the application changes.
4005
4006	\sa applicationState()
4007	*/
4008
4009	void QGuiApplicationPrivate::setApplicationState(Qt::ApplicationState state, bool forcePropagate)
4010	{
4011	if ((applicationState == state) && !forcePropagate)
4012	return;
4013
4014	applicationState = state;
4015
4016	switch (state) {
4017	case Qt::ApplicationActive: {
4018	QEvent appActivate(QEvent::ApplicationActivate);
4019	QCoreApplication::sendSpontaneousEvent(qApp, event: &appActivate);
4020	break; }
4021	case Qt::ApplicationInactive: {
4022	QEvent appDeactivate(QEvent::ApplicationDeactivate);
4023	QCoreApplication::sendSpontaneousEvent(qApp, event: &appDeactivate);
4024	break; }
4025	default:
4026	break;
4027	}
4028
4029	QApplicationStateChangeEvent event(applicationState);
4030	QCoreApplication::sendSpontaneousEvent(qApp, event: &event);
4031
4032	emit qApp->applicationStateChanged(state: applicationState);
4033	}
4034
4035	/*!
4036	\since 4.2
4037	\fn void QGuiApplication::commitDataRequest(QSessionManager &manager)
4038
4039	This signal deals with \l{Session Management}{session management}. It is
4040	emitted when the QSessionManager wants the application to commit all its
4041	data.
4042
4043	Usually this means saving all open files, after getting permission from
4044	the user. Furthermore you may want to provide a means by which the user
4045	can cancel the shutdown.
4046
4047	You should not exit the application within this signal. Instead,
4048	the session manager may or may not do this afterwards, depending on the
4049	context.
4050
4051	\warning Within this signal, no user interaction is possible, \e
4052	unless you ask the \a manager for explicit permission. See
4053	QSessionManager::allowsInteraction() and
4054	QSessionManager::allowsErrorInteraction() for details and example
4055	usage.
4056
4057	\note You should use Qt::DirectConnection when connecting to this signal.
4058
4059	\sa isSessionRestored(), sessionId(), saveStateRequest(), {Session Management}
4060	*/
4061
4062	/*!
4063	\since 4.2
4064	\fn void QGuiApplication::saveStateRequest(QSessionManager &manager)
4065
4066	This signal deals with \l{Session Management}{session management}. It is
4067	invoked when the \l{QSessionManager}{session manager} wants the application
4068	to preserve its state for a future session.
4069
4070	For example, a text editor would create a temporary file that includes the
4071	current contents of its edit buffers, the location of the cursor and other
4072	aspects of the current editing session.
4073
4074	You should never exit the application within this signal. Instead, the
4075	session manager may or may not do this afterwards, depending on the
4076	context. Furthermore, most session managers will very likely request a saved
4077	state immediately after the application has been started. This permits the
4078	session manager to learn about the application's restart policy.
4079
4080	\warning Within this signal, no user interaction is possible, \e
4081	unless you ask the \a manager for explicit permission. See
4082	QSessionManager::allowsInteraction() and
4083	QSessionManager::allowsErrorInteraction() for details.
4084
4085	\note You should use Qt::DirectConnection when connecting to this signal.
4086
4087	\sa isSessionRestored(), sessionId(), commitDataRequest(), {Session Management}
4088	*/
4089
4090	/*!
4091	\fn bool QGuiApplication::isSessionRestored() const
4092
4093	Returns \c true if the application has been restored from an earlier
4094	\l{Session Management}{session}; otherwise returns \c false.
4095
4096	\sa sessionId(), commitDataRequest(), saveStateRequest()
4097	*/
4098
4099	/*!
4100	\since 5.0
4101	\fn bool QGuiApplication::isSavingSession() const
4102
4103	Returns \c true if the application is currently saving the
4104	\l{Session Management}{session}; otherwise returns \c false.
4105
4106	This is \c true when commitDataRequest() and saveStateRequest() are emitted,
4107	but also when the windows are closed afterwards by session management.
4108
4109	\sa sessionId(), commitDataRequest(), saveStateRequest()
4110	*/
4111
4112	/*!
4113	\fn QString QGuiApplication::sessionId() const
4114
4115	Returns the current \l{Session Management}{session's} identifier.
4116
4117	If the application has been restored from an earlier session, this
4118	identifier is the same as it was in that previous session. The session
4119	identifier is guaranteed to be unique both for different applications
4120	and for different instances of the same application.
4121
4122	\sa isSessionRestored(), sessionKey(), commitDataRequest(), saveStateRequest()
4123	*/
4124
4125	/*!
4126	\fn QString QGuiApplication::sessionKey() const
4127
4128	Returns the session key in the current \l{Session Management}{session}.
4129
4130	If the application has been restored from an earlier session, this key is
4131	the same as it was when the previous session ended.
4132
4133	The session key changes every time the session is saved. If the shutdown process
4134	is cancelled, another session key will be used when shutting down again.
4135
4136	\sa isSessionRestored(), sessionId(), commitDataRequest(), saveStateRequest()
4137	*/
4138	#ifndef QT_NO_SESSIONMANAGER
4139	bool QGuiApplication::isSessionRestored() const
4140	{
4141	Q_D(const QGuiApplication);
4142	return d->is_session_restored;
4143	}
4144
4145	QString QGuiApplication::sessionId() const
4146	{
4147	Q_D(const QGuiApplication);
4148	return d->session_manager->sessionId();
4149	}
4150
4151	QString QGuiApplication::sessionKey() const
4152	{
4153	Q_D(const QGuiApplication);
4154	return d->session_manager->sessionKey();
4155	}
4156
4157	bool QGuiApplication::isSavingSession() const
4158	{
4159	Q_D(const QGuiApplication);
4160	return d->is_saving_session;
4161	}
4162
4163	void QGuiApplicationPrivate::commitData()
4164	{
4165	Q_Q(QGuiApplication);
4166	is_saving_session = true;
4167	emit q->commitDataRequest(sessionManager&: *session_manager);
4168	is_saving_session = false;
4169	}
4170
4171
4172	void QGuiApplicationPrivate::saveState()
4173	{
4174	Q_Q(QGuiApplication);
4175	is_saving_session = true;
4176	emit q->saveStateRequest(sessionManager&: *session_manager);
4177	is_saving_session = false;
4178	}
4179	#endif //QT_NO_SESSIONMANAGER
4180
4181	/*!
4182	\since 5.2
4183
4184	Function that can be used to sync Qt state with the Window Systems state.
4185
4186	This function will first empty Qts events by calling QCoreApplication::processEvents(),
4187	then the platform plugin will sync up with the windowsystem, and finally Qts events
4188	will be delived by another call to QCoreApplication::processEvents();
4189
4190	This function is timeconsuming and its use is discouraged.
4191	*/
4192	void QGuiApplication::sync()
4193	{
4194	QCoreApplication::processEvents();
4195	if (QGuiApplicationPrivate::platform_integration
4196	&& QGuiApplicationPrivate::platform_integration->hasCapability(cap: QPlatformIntegration::SyncState)) {
4197	QGuiApplicationPrivate::platform_integration->sync();
4198	QCoreApplication::processEvents();
4199	QWindowSystemInterface::flushWindowSystemEvents();
4200	}
4201	}
4202
4203	/*!
4204	\property QGuiApplication::layoutDirection
4205	\brief the default layout direction for this application
4206
4207	On system start-up, or when the direction is explicitly set to
4208	Qt::LayoutDirectionAuto, the default layout direction depends on the
4209	application's language.
4210
4211	The notifier signal was introduced in Qt 5.4.
4212
4213	\sa QWidget::layoutDirection, isLeftToRight(), isRightToLeft()
4214	*/
4215
4216	void QGuiApplication::setLayoutDirection(Qt::LayoutDirection direction)
4217	{
4218	layout_direction = direction;
4219	if (direction == Qt::LayoutDirectionAuto)
4220	direction = qt_detectRTLLanguage() ? Qt::RightToLeft : Qt::LeftToRight;
4221
4222	// no change to the explicitly set or auto-detected layout direction
4223	if (direction == effective_layout_direction)
4224	return;
4225
4226	effective_layout_direction = direction;
4227	if (qGuiApp) {
4228	emit qGuiApp->layoutDirectionChanged(direction);
4229	QGuiApplicationPrivate::self->notifyLayoutDirectionChange();
4230	}
4231	}
4232
4233	Qt::LayoutDirection QGuiApplication::layoutDirection()
4234	{
4235	/*
4236	effective_layout_direction defaults to Qt::LeftToRight, and is updated with what is
4237	auto-detected by a call to setLayoutDirection(Qt::LayoutDirectionAuto). This happens in
4238	QGuiApplicationPrivate::init and when the language changes (or before if the application
4239	calls the static function, but then no translators are installed so the auto-detection
4240	always yields Qt::LeftToRight).
4241	So we can be certain that it's always the right value.
4242	*/
4243	return effective_layout_direction;
4244	}
4245
4246	/*!
4247	\fn QCursor *QGuiApplication::overrideCursor()
4248
4249	Returns the active application override cursor.
4250
4251	This function returns \nullptr if no application cursor has been defined (i.e. the
4252	internal cursor stack is empty).
4253
4254	\sa setOverrideCursor(), restoreOverrideCursor()
4255	*/
4256	#ifndef QT_NO_CURSOR
4257	QCursor *QGuiApplication::overrideCursor()
4258	{
4259	CHECK_QAPP_INSTANCE(nullptr)
4260	return qGuiApp->d_func()->cursor_list.isEmpty() ? nullptr : &qGuiApp->d_func()->cursor_list.first();
4261	}
4262
4263	/*!
4264	Changes the currently active application override cursor to \a cursor.
4265
4266	This function has no effect if setOverrideCursor() was not called.
4267
4268	\sa setOverrideCursor(), overrideCursor(), restoreOverrideCursor(),
4269	QWidget::setCursor()
4270	*/
4271	void QGuiApplication::changeOverrideCursor(const QCursor &cursor)
4272	{
4273	CHECK_QAPP_INSTANCE()
4274	if (qGuiApp->d_func()->cursor_list.isEmpty())
4275	return;
4276	qGuiApp->d_func()->cursor_list.removeFirst();
4277	setOverrideCursor(cursor);
4278	}
4279	#endif
4280
4281
4282	#ifndef QT_NO_CURSOR
4283	static inline void applyCursor(QWindow *w, QCursor c)
4284	{
4285	if (const QScreen *screen = w->screen())
4286	if (QPlatformCursor *cursor = screen->handle()->cursor())
4287	cursor->changeCursor(windowCursor: &c, window: w);
4288	}
4289
4290	static inline void unsetCursor(QWindow *w)
4291	{
4292	if (const QScreen *screen = w->screen())
4293	if (QPlatformCursor *cursor = screen->handle()->cursor())
4294	cursor->changeCursor(windowCursor: nullptr, window: w);
4295	}
4296
4297	static inline void applyCursor(const QList<QWindow *> &l, const QCursor &c)
4298	{
4299	for (int i = 0; i < l.size(); ++i) {
4300	QWindow *w = l.at(i);
4301	if (w->handle() && w->type() != Qt::Desktop)
4302	applyCursor(w, c);
4303	}
4304	}
4305
4306	static inline void applyOverrideCursor(const QList<QScreen *> &screens, const QCursor &c)
4307	{
4308	for (QScreen *screen : screens) {
4309	if (QPlatformCursor *cursor = screen->handle()->cursor())
4310	cursor->setOverrideCursor(c);
4311	}
4312	}
4313
4314	static inline void clearOverrideCursor(const QList<QScreen *> &screens)
4315	{
4316	for (QScreen *screen : screens) {
4317	if (QPlatformCursor *cursor = screen->handle()->cursor())
4318	cursor->clearOverrideCursor();
4319	}
4320	}
4321
4322	static inline void applyWindowCursor(const QList<QWindow *> &l)
4323	{
4324	for (int i = 0; i < l.size(); ++i) {
4325	QWindow *w = l.at(i);
4326	if (w->handle() && w->type() != Qt::Desktop) {
4327	if (qt_window_private(window: w)->hasCursor) {
4328	applyCursor(w, c: w->cursor());
4329	} else {
4330	unsetCursor(w);
4331	}
4332	}
4333	}
4334	}
4335
4336	/*!
4337	\fn void QGuiApplication::setOverrideCursor(const QCursor &cursor)
4338
4339	Sets the application override cursor to \a cursor.
4340
4341	Application override cursors are intended for showing the user that the
4342	application is in a special state, for example during an operation that
4343	might take some time.
4344
4345	This cursor will be displayed in all the application's widgets until
4346	restoreOverrideCursor() or another setOverrideCursor() is called.
4347
4348	Application cursors are stored on an internal stack. setOverrideCursor()
4349	pushes the cursor onto the stack, and restoreOverrideCursor() pops the
4350	active cursor off the stack. changeOverrideCursor() changes the currently
4351	active application override cursor.
4352
4353	Every setOverrideCursor() must eventually be followed by a corresponding
4354	restoreOverrideCursor(), otherwise the stack will never be emptied.
4355
4356	Example:
4357	\snippet code/src_gui_kernel_qguiapplication_x11.cpp 0
4358
4359	\sa overrideCursor(), restoreOverrideCursor(), changeOverrideCursor(),
4360	QWidget::setCursor()
4361	*/
4362	void QGuiApplication::setOverrideCursor(const QCursor &cursor)
4363	{
4364	CHECK_QAPP_INSTANCE()
4365	qGuiApp->d_func()->cursor_list.prepend(t: cursor);
4366	if (QPlatformCursor::capabilities().testFlag(flag: QPlatformCursor::OverrideCursor))
4367	applyOverrideCursor(screens: QGuiApplicationPrivate::screen_list, c: cursor);
4368	else
4369	applyCursor(l: QGuiApplicationPrivate::window_list, c: cursor);
4370	}
4371
4372	/*!
4373	\fn void QGuiApplication::restoreOverrideCursor()
4374
4375	Undoes the last setOverrideCursor().
4376
4377	If setOverrideCursor() has been called twice, calling
4378	restoreOverrideCursor() will activate the first cursor set. Calling this
4379	function a second time restores the original widgets' cursors.
4380
4381	\sa setOverrideCursor(), overrideCursor()
4382	*/
4383	void QGuiApplication::restoreOverrideCursor()
4384	{
4385	CHECK_QAPP_INSTANCE()
4386	if (qGuiApp->d_func()->cursor_list.isEmpty())
4387	return;
4388	qGuiApp->d_func()->cursor_list.removeFirst();
4389	if (qGuiApp->d_func()->cursor_list.size() > 0) {
4390	QCursor c(qGuiApp->d_func()->cursor_list.value(i: 0));
4391	if (QPlatformCursor::capabilities().testFlag(flag: QPlatformCursor::OverrideCursor))
4392	applyOverrideCursor(screens: QGuiApplicationPrivate::screen_list, c);
4393	else
4394	applyCursor(l: QGuiApplicationPrivate::window_list, c);
4395	} else {
4396	if (QPlatformCursor::capabilities().testFlag(flag: QPlatformCursor::OverrideCursor))
4397	clearOverrideCursor(screens: QGuiApplicationPrivate::screen_list);
4398	applyWindowCursor(l: QGuiApplicationPrivate::window_list);
4399	}
4400	}
4401	#endif// QT_NO_CURSOR
4402
4403	/*!
4404	Returns the application's style hints.
4405
4406	The style hints encapsulate a set of platform dependent properties
4407	such as double click intervals, full width selection and others.
4408
4409	The hints can be used to integrate tighter with the underlying platform.
4410
4411	\sa QStyleHints
4412	*/
4413	QStyleHints *QGuiApplication::styleHints()
4414	{
4415	if (!QGuiApplicationPrivate::styleHints)
4416	QGuiApplicationPrivate::styleHints = new QStyleHints();
4417	return QGuiApplicationPrivate::styleHints;
4418	}
4419
4420	/*!
4421	Sets whether Qt should use the system's standard colors, fonts, etc., to
4422	\a on. By default, this is \c true.
4423
4424	This function must be called before creating the QGuiApplication object, like
4425	this:
4426
4427	\snippet code/src_gui_kernel_qguiapplication.cpp 0
4428
4429	\sa desktopSettingsAware()
4430	*/
4431	void QGuiApplication::setDesktopSettingsAware(bool on)
4432	{
4433	QGuiApplicationPrivate::obey_desktop_settings = on;
4434	}
4435
4436	/*!
4437	Returns \c true if Qt is set to use the system's standard colors, fonts, etc.;
4438	otherwise returns \c false. The default is \c true.
4439
4440	\sa setDesktopSettingsAware()
4441	*/
4442	bool QGuiApplication::desktopSettingsAware()
4443	{
4444	return QGuiApplicationPrivate::obey_desktop_settings;
4445	}
4446
4447	/*!
4448	returns the input method.
4449
4450	The input method returns properties about the state and position of
4451	the virtual keyboard. It also provides information about the position of the
4452	current focused input element.
4453
4454	\sa QInputMethod
4455	*/
4456	QInputMethod *QGuiApplication::inputMethod()
4457	{
4458	CHECK_QAPP_INSTANCE(nullptr)
4459	if (!qGuiApp->d_func()->inputMethod)
4460	qGuiApp->d_func()->inputMethod = new QInputMethod();
4461	return qGuiApp->d_func()->inputMethod;
4462	}
4463
4464	/*!
4465	\fn void QGuiApplication::fontDatabaseChanged()
4466
4467	This signal is emitted when the available fonts have changed.
4468
4469	This can happen when application fonts are added or removed, or when the
4470	system fonts change.
4471
4472	\sa QFontDatabase::addApplicationFont(),
4473	QFontDatabase::addApplicationFontFromData(),
4474	QFontDatabase::removeAllApplicationFonts(),
4475	QFontDatabase::removeApplicationFont()
4476	*/
4477
4478	QPixmap QGuiApplicationPrivate::getPixmapCursor(Qt::CursorShape cshape)
4479	{
4480	Q_UNUSED(cshape);
4481	return QPixmap();
4482	}
4483
4484	QPoint QGuiApplicationPrivate::QLastCursorPosition::toPoint() const noexcept
4485	{
4486	// Guard against the default initialization of qInf() (avoid UB or SIGFPE in conversion).
4487	if (Q_UNLIKELY(qIsInf(thePoint.x())))
4488	return QPoint(std::numeric_limits<int>::max(), std::numeric_limits<int>::max());
4489	return thePoint.toPoint();
4490	}
4491
4492	#if QT_CONFIG(draganddrop)
4493	void QGuiApplicationPrivate::notifyDragStarted(const QDrag *drag)
4494	{
4495	Q_UNUSED(drag);
4496
4497	}
4498	#endif
4499
4500	const QColorTrcLut *QGuiApplicationPrivate::colorProfileForA8Text()
4501	{
4502	#ifdef Q_OS_WIN
4503	if (!m_a8ColorProfile)
4504	m_a8ColorProfile = QColorTrcLut::fromGamma(2.31f); // This is a hard-coded thing for Windows text rendering
4505	return m_a8ColorProfile.get();
4506	#else
4507	return colorProfileForA32Text();
4508	#endif
4509	}
4510
4511	const QColorTrcLut *QGuiApplicationPrivate::colorProfileForA32Text()
4512	{
4513	if (!m_a32ColorProfile)
4514	m_a32ColorProfile = QColorTrcLut::fromGamma(gamma: float(fontSmoothingGamma));
4515	return m_a32ColorProfile.get();
4516	}
4517
4518	void QGuiApplicationPrivate::_q_updateFocusObject(QObject *object)
4519	{
4520	Q_Q(QGuiApplication);
4521
4522	QPlatformInputContext *inputContext = platformIntegration()->inputContext();
4523	const bool enabled = inputContext && QInputMethodPrivate::objectAcceptsInputMethod(object);
4524
4525	QPlatformInputContextPrivate::setInputMethodAccepted(enabled);
4526	if (inputContext)
4527	inputContext->setFocusObject(object);
4528	emit q->focusObjectChanged(focusObject: object);
4529	}
4530
4531	enum MouseMasks {
4532	MouseCapsMask = 0xFF,
4533	MouseSourceMaskDst = 0xFF00,
4534	MouseSourceMaskSrc = MouseCapsMask,
4535	MouseSourceShift = 8,
4536	MouseFlagsCapsMask = 0xFF0000,
4537	MouseFlagsShift = 16
4538	};
4539
4540	QInputDeviceManager *QGuiApplicationPrivate::inputDeviceManager()
4541	{
4542	Q_ASSERT(QGuiApplication::instance());
4543
4544	if (!m_inputDeviceManager)
4545	m_inputDeviceManager = new QInputDeviceManager(QGuiApplication::instance());
4546
4547	return m_inputDeviceManager;
4548	}
4549
4550	/*!
4551	\fn template <typename QNativeInterface> QNativeInterface *QGuiApplication::nativeInterface() const
4552
4553	Returns a native interface of the given type for the application.
4554
4555	This function provides access to platform specific functionality
4556	of QGuiApplication, as defined in the QNativeInterface namespace:
4557
4558	\annotatedlist native-interfaces-qguiapplication
4559
4560	If the requested interface is not available a \nullptr is returned.
4561	*/
4562
4563	void *QGuiApplication::resolveInterface(const char *name, int revision) const
4564	{
4565	using namespace QNativeInterface;
4566	using namespace QNativeInterface::Private;
4567
4568	auto *platformIntegration = QGuiApplicationPrivate::platformIntegration();
4569	Q_UNUSED(platformIntegration);
4570
4571	#if defined(Q_OS_WIN)
4572	QT_NATIVE_INTERFACE_RETURN_IF(QWindowsApplication, platformIntegration);
4573	#endif
4574	#if QT_CONFIG(xcb)
4575	QT_NATIVE_INTERFACE_RETURN_IF(QX11Application, platformNativeInterface());
4576	#endif
4577	#if QT_CONFIG(wayland)
4578	QT_NATIVE_INTERFACE_RETURN_IF(QWaylandApplication, platformNativeInterface());
4579	#endif
4580	#if defined(Q_OS_VISIONOS)
4581	QT_NATIVE_INTERFACE_RETURN_IF(QVisionOSApplication, platformIntegration);
4582	#endif
4583
4584	return QCoreApplication::resolveInterface(name, revision);
4585	}
4586
4587	QT_END_NAMESPACE
4588
4589	#include "moc_qguiapplication.cpp"
4590