add basic code.

Fluent/CMakeLists.txt

@@ -3,6 +3,8 @@ find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Gui Quick QuickControls2)
 
 qt_standard_project_setup(REQUIRES 6.5)
 
+add_subdirectory(QHotkey)
+
 add_library(Fluent
     AsyncEvent.h
     QClassStdStream.h QClassStdStream.cpp
@@ -22,6 +24,7 @@ qt6_add_qml_module(Fluent
         Colors.h Colors.cpp
         FpsItem.h FpsItem.cpp
         Frameless.h Frameless.cpp
+        Hotkey.h Hotkey.cpp
         Icons.h
         Rectangle.h Rectangle.cpp
         TextStyle.h TextStyle.cpp
@@ -30,6 +33,7 @@ qt6_add_qml_module(Fluent
     QML_FILES
         qml/Acrylic.qml
         qml/AppBar.qml
+        qml/ApplicationWindow.qml
         qml/Button.qml
         qml/ContentDialog.qml
         qml/ControlBackground.qml
@@ -53,7 +57,6 @@ qt6_add_qml_module(Fluent
         qml/Shadow.qml
         qml/Text.qml
         qml/Tooltip.qml
-        qml/Window.qml
     RESOURCES
         resources/noise.png
         resources/FluentIcons.ttf
@@ -67,4 +70,5 @@ target_link_libraries(Fluent
     PUBLIC  Qt${QT_VERSION_MAJOR}::Gui
     PRIVATE Qt${QT_VERSION_MAJOR}::Quick
     INTERFACE Qt${QT_VERSION_MAJOR}::QuickControls2
+    PRIVATE QHotkey
 )

Fluent/Hotkey.cpp

@@ -0,0 +1,26 @@
+#include "Hotkey.h"
+#include "QHotkey"
+#include <QGuiApplication>
+
+Hotkey::Hotkey(QObject *parent) : QObject{parent} {
+    m_sequence = "";
+    m_isRegistered = false;
+    connect(this, &Hotkey::sequenceChanged, this, [=] {
+        if (m_hotkey) {
+            delete m_hotkey;
+            m_hotkey = nullptr;
+        }
+        m_hotkey = new QHotkey(QKeySequence(m_sequence), true, qApp);
+        this->isRegistered(m_hotkey->isRegistered());
+        QObject::connect(m_hotkey, &QHotkey::activated, qApp, [=]() { Q_EMIT this->activated(); });
+        QObject::connect(m_hotkey, &QHotkey::registeredChanged, qApp,
+                         [=]() { this->isRegistered(m_hotkey->isRegistered()); });
+    });
+}
+
+Hotkey::~Hotkey() {
+    if (m_hotkey) {
+        delete m_hotkey;
+        m_hotkey = nullptr;
+    }
+}

Fluent/Hotkey.h

@@ -0,0 +1,26 @@
+#ifndef FLUHOTKEY_H
+#define FLUHOTKEY_H
+
+#include "Utilities.h"
+#include <QObject>
+
+class QHotkey;
+
+class Hotkey : public QObject {
+
+    Q_OBJECT
+    Q_PROPERTY_AUTO(QString, sequence)
+    Q_PROPERTY_AUTO(QString, name)
+    Q_PROPERTY_READONLY_AUTO(bool, isRegistered)
+    QML_NAMED_ELEMENT(FluHotkey)
+public:
+    Hotkey(QObject *parent = nullptr);
+    ~Hotkey();
+signals:
+    void activated();
+
+private:
+    QHotkey *m_hotkey = nullptr;
+};
+
+#endif // FLUHOTKEY_H

Fluent/QHotkey/CMakeLists.txt

@@ -0,0 +1,13 @@
+
+add_library(QHotkey
+    qhotkey.h qhotkey.cpp
+    qhotkey_p.h qhotkey_win.cpp
+)
+
+target_include_directories(QHotkey
+    INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+target_link_libraries(QHotkey
+    PUBLIC  Qt${QT_VERSION_MAJOR}::Gui
+)

Fluent/QHotkey/QHotkey

@@ -0,0 +1 @@
+#include "qhotkey.h"

Fluent/QHotkey/qhotkey.cpp

@@ -0,0 +1,377 @@
+#include "qhotkey.h"
+#include "qhotkey_p.h"
+#include <QCoreApplication>
+#include <QAbstractEventDispatcher>
+#include <QMetaMethod>
+#include <QThread>
+#include <QDebug>
+
+Q_LOGGING_CATEGORY(logQHotkey, "QHotkey")
+
+void QHotkey::addGlobalMapping(const QKeySequence &shortcut, QHotkey::NativeShortcut nativeShortcut)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+	const int key = shortcut[0].toCombined();
+#else
+	const int key = shortcut[0];
+#endif
+
+	QMetaObject::invokeMethod(QHotkeyPrivate::instance(), "addMappingInvoked", Qt::QueuedConnection,
+							  Q_ARG(Qt::Key, Qt::Key(key & ~Qt::KeyboardModifierMask)),
+							  Q_ARG(Qt::KeyboardModifiers, Qt::KeyboardModifiers(key & Qt::KeyboardModifierMask)),
+							  Q_ARG(QHotkey::NativeShortcut, nativeShortcut));
+}
+
+bool QHotkey::isPlatformSupported()
+{
+	return QHotkeyPrivate::isPlatformSupported();
+}
+
+QHotkey::QHotkey(QObject *parent) :
+	QObject(parent),
+	_keyCode(Qt::Key_unknown),
+	_modifiers(Qt::NoModifier),
+	_registered(false)
+{}
+
+QHotkey::QHotkey(const QKeySequence &shortcut, bool autoRegister, QObject *parent) :
+	QHotkey(parent)
+{
+	setShortcut(shortcut, autoRegister);
+}
+
+QHotkey::QHotkey(Qt::Key keyCode, Qt::KeyboardModifiers modifiers, bool autoRegister, QObject *parent) :
+	QHotkey(parent)
+{
+	setShortcut(keyCode, modifiers, autoRegister);
+}
+
+QHotkey::QHotkey(QHotkey::NativeShortcut shortcut, bool autoRegister, QObject *parent) :
+	QHotkey(parent)
+{
+	setNativeShortcut(shortcut, autoRegister);
+}
+
+QHotkey::~QHotkey()
+{
+	if(_registered)
+		QHotkeyPrivate::instance()->removeShortcut(this);
+}
+
+QKeySequence QHotkey::shortcut() const
+{
+	if(_keyCode == Qt::Key_unknown)
+		return QKeySequence();
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+	return QKeySequence((_keyCode | _modifiers).toCombined());
+#else
+	return QKeySequence(static_cast<int>(_keyCode | _modifiers));
+#endif
+}
+
+Qt::Key QHotkey::keyCode() const
+{
+	return _keyCode;
+}
+
+Qt::KeyboardModifiers QHotkey::modifiers() const
+{
+	return _modifiers;
+}
+
+QHotkey::NativeShortcut QHotkey::currentNativeShortcut() const
+{
+	return _nativeShortcut;
+}
+
+bool QHotkey::isRegistered() const
+{
+	return _registered;
+}
+
+bool QHotkey::setShortcut(const QKeySequence &shortcut, bool autoRegister)
+{
+	if(shortcut.isEmpty())
+		return resetShortcut();
+	if(shortcut.count() > 1) {
+		qCWarning(logQHotkey, "Keysequences with multiple shortcuts are not allowed! "
+							  "Only the first shortcut will be used!");
+	}
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+	const int key = shortcut[0].toCombined();
+#else
+	const int key = shortcut[0];
+#endif
+
+	return setShortcut(Qt::Key(key & ~Qt::KeyboardModifierMask),
+			Qt::KeyboardModifiers(key & Qt::KeyboardModifierMask),
+			autoRegister);
+}
+
+bool QHotkey::setShortcut(Qt::Key keyCode, Qt::KeyboardModifiers modifiers, bool autoRegister)
+{
+	if(_registered) {
+		if(autoRegister) {
+			if(!QHotkeyPrivate::instance()->removeShortcut(this))
+				return false;
+		} else
+			return false;
+	}
+
+	if(keyCode == Qt::Key_unknown) {
+		_keyCode = Qt::Key_unknown;
+		_modifiers = Qt::NoModifier;
+		_nativeShortcut = NativeShortcut();
+		return true;
+	}
+
+	_keyCode = keyCode;
+	_modifiers = modifiers;
+	_nativeShortcut = QHotkeyPrivate::instance()->nativeShortcut(keyCode, modifiers);
+	if(_nativeShortcut.isValid()) {
+		if(autoRegister)
+			return QHotkeyPrivate::instance()->addShortcut(this);
+		return true;
+	}
+
+	qCWarning(logQHotkey) << "Unable to map shortcut to native keys. Key:" << keyCode << "Modifiers:" << modifiers;
+	_keyCode = Qt::Key_unknown;
+	_modifiers = Qt::NoModifier;
+	_nativeShortcut = NativeShortcut();
+	return false;
+}
+
+bool QHotkey::resetShortcut()
+{
+	if(_registered &&
+	   !QHotkeyPrivate::instance()->removeShortcut(this)) {
+		return false;
+	}
+
+	_keyCode = Qt::Key_unknown;
+	_modifiers = Qt::NoModifier;
+	_nativeShortcut = NativeShortcut();
+	return true;
+}
+
+bool QHotkey::setNativeShortcut(QHotkey::NativeShortcut nativeShortcut, bool autoRegister)
+{
+	if(_registered) {
+		if(autoRegister) {
+			if(!QHotkeyPrivate::instance()->removeShortcut(this))
+				return false;
+		} else
+			return false;
+	}
+
+	if(nativeShortcut.isValid()) {
+		_keyCode = Qt::Key_unknown;
+		_modifiers = Qt::NoModifier;
+		_nativeShortcut = nativeShortcut;
+		if(autoRegister)
+			return QHotkeyPrivate::instance()->addShortcut(this);
+		return true;
+	} 
+
+	_keyCode = Qt::Key_unknown;
+	_modifiers = Qt::NoModifier;
+	_nativeShortcut = NativeShortcut();
+	return true;
+}
+
+bool QHotkey::setRegistered(bool registered)
+{
+	if(_registered && !registered)
+		return QHotkeyPrivate::instance()->removeShortcut(this);
+	if(!_registered && registered) {
+		if(!_nativeShortcut.isValid())
+			return false;
+		return QHotkeyPrivate::instance()->addShortcut(this);
+	}
+	return true;
+}
+
+
+
+// ---------- QHotkeyPrivate implementation ----------
+
+QHotkeyPrivate::QHotkeyPrivate()
+{
+	Q_ASSERT_X(qApp, Q_FUNC_INFO, "QHotkey requires QCoreApplication to be instantiated");
+	qApp->eventDispatcher()->installNativeEventFilter(this);
+}
+
+QHotkeyPrivate::~QHotkeyPrivate()
+{
+	if(!shortcuts.isEmpty())
+		qCWarning(logQHotkey) << "QHotkeyPrivate destroyed with registered shortcuts!";
+	if(qApp && qApp->eventDispatcher())
+		qApp->eventDispatcher()->removeNativeEventFilter(this);
+}
+
+QHotkey::NativeShortcut QHotkeyPrivate::nativeShortcut(Qt::Key keycode, Qt::KeyboardModifiers modifiers)
+{
+	Qt::ConnectionType conType = (QThread::currentThread() == thread() ?
+									  Qt::DirectConnection :
+									  Qt::BlockingQueuedConnection);
+	QHotkey::NativeShortcut res;
+	if(!QMetaObject::invokeMethod(this, "nativeShortcutInvoked", conType,
+								  Q_RETURN_ARG(QHotkey::NativeShortcut, res),
+								  Q_ARG(Qt::Key, keycode),
+								  Q_ARG(Qt::KeyboardModifiers, modifiers))) {
+		return QHotkey::NativeShortcut();
+	}
+	return res;
+}
+
+bool QHotkeyPrivate::addShortcut(QHotkey *hotkey)
+{
+	if(hotkey->_registered)
+		return false;
+
+	Qt::ConnectionType conType = (QThread::currentThread() == thread() ?
+									  Qt::DirectConnection :
+									  Qt::BlockingQueuedConnection);
+	bool res = false;
+	if(!QMetaObject::invokeMethod(this, "addShortcutInvoked", conType,
+								  Q_RETURN_ARG(bool, res),
+								  Q_ARG(QHotkey*, hotkey))) {
+		return false;
+	}
+
+	if(res)
+		emit hotkey->registeredChanged(true);
+	return res;
+}
+
+bool QHotkeyPrivate::removeShortcut(QHotkey *hotkey)
+{
+	if(!hotkey->_registered)
+		return false;
+
+	Qt::ConnectionType conType = (QThread::currentThread() == thread() ?
+									  Qt::DirectConnection :
+									  Qt::BlockingQueuedConnection);
+	bool res = false;
+	if(!QMetaObject::invokeMethod(this, "removeShortcutInvoked", conType,
+								  Q_RETURN_ARG(bool, res),
+								  Q_ARG(QHotkey*, hotkey))) {
+		return false;
+	}
+
+	if(res)
+		emit hotkey->registeredChanged(false);
+	return res;
+}
+
+void QHotkeyPrivate::activateShortcut(QHotkey::NativeShortcut shortcut)
+{
+	QMetaMethod signal = QMetaMethod::fromSignal(&QHotkey::activated);
+	for(QHotkey *hkey : shortcuts.values(shortcut))
+		signal.invoke(hkey, Qt::QueuedConnection);
+}
+
+void QHotkeyPrivate::releaseShortcut(QHotkey::NativeShortcut shortcut)
+{
+	QMetaMethod signal = QMetaMethod::fromSignal(&QHotkey::released);
+	for(QHotkey *hkey : shortcuts.values(shortcut))
+		signal.invoke(hkey, Qt::QueuedConnection);
+}
+
+void QHotkeyPrivate::addMappingInvoked(Qt::Key keycode, Qt::KeyboardModifiers modifiers, QHotkey::NativeShortcut nativeShortcut)
+{
+	mapping.insert({keycode, modifiers}, nativeShortcut);
+}
+
+bool QHotkeyPrivate::addShortcutInvoked(QHotkey *hotkey)
+{
+	QHotkey::NativeShortcut shortcut = hotkey->_nativeShortcut;
+
+	if(!shortcuts.contains(shortcut)) {
+		if(!registerShortcut(shortcut)) {
+			qCWarning(logQHotkey) << QHotkey::tr("Failed to register %1. Error: %2").arg(hotkey->shortcut().toString(), error);
+			return false;
+		}
+	}
+
+	shortcuts.insert(shortcut, hotkey);
+	hotkey->_registered = true;
+	return true;
+}
+
+bool QHotkeyPrivate::removeShortcutInvoked(QHotkey *hotkey)
+{
+	QHotkey::NativeShortcut shortcut = hotkey->_nativeShortcut;
+
+	if(shortcuts.remove(shortcut, hotkey) == 0)
+		return false;
+	hotkey->_registered = false;
+	emit hotkey->registeredChanged(true);
+	if(shortcuts.count(shortcut) == 0) {
+		if (!unregisterShortcut(shortcut)) {
+			qCWarning(logQHotkey) << QHotkey::tr("Failed to unregister %1. Error: %2").arg(hotkey->shortcut().toString(), error);
+			return false;
+		}
+		return true;
+	}
+	return true;
+}
+
+QHotkey::NativeShortcut QHotkeyPrivate::nativeShortcutInvoked(Qt::Key keycode, Qt::KeyboardModifiers modifiers)
+{
+	if(mapping.contains({keycode, modifiers}))
+		return mapping.value({keycode, modifiers});
+
+	bool ok1 = false;
+	auto k = nativeKeycode(keycode, ok1);
+	bool ok2 = false;
+	auto m = nativeModifiers(modifiers, ok2);
+	if(ok1 && ok2)
+		return {k, m};
+	return {};
+}
+
+
+
+QHotkey::NativeShortcut::NativeShortcut() :
+	key(),
+	modifier(),
+	valid(false)
+{}
+
+QHotkey::NativeShortcut::NativeShortcut(quint32 key, quint32 modifier) :
+	key(key),
+	modifier(modifier),
+	valid(true)
+{}
+
+bool QHotkey::NativeShortcut::isValid() const
+{
+	return valid;
+}
+
+bool QHotkey::NativeShortcut::operator ==(QHotkey::NativeShortcut other) const
+{
+	return (key == other.key) &&
+		   (modifier == other.modifier) &&
+		   valid == other.valid;
+}
+
+bool QHotkey::NativeShortcut::operator !=(QHotkey::NativeShortcut other) const
+{
+	return (key != other.key) ||
+		   (modifier != other.modifier) ||
+		   valid != other.valid;
+}
+
+QHOTKEY_HASH_SEED qHash(QHotkey::NativeShortcut key)
+{
+	return qHash(key.key) ^ qHash(key.modifier);
+}
+
+QHOTKEY_HASH_SEED qHash(QHotkey::NativeShortcut key, QHOTKEY_HASH_SEED seed)
+{
+	return qHash(key.key, seed) ^ qHash(key.modifier, seed);
+}

Fluent/QHotkey/qhotkey.h

@@ -0,0 +1,130 @@
+#ifndef QHOTKEY_H
+#define QHOTKEY_H
+
+#include <QObject>
+#include <QKeySequence>
+#include <QPair>
+#include <QLoggingCategory>
+
+#ifdef QHOTKEY_SHARED
+#	ifdef QHOTKEY_LIBRARY
+#		define QHOTKEY_EXPORT Q_DECL_EXPORT
+#	else
+#		define QHOTKEY_EXPORT Q_DECL_IMPORT
+#	endif
+#else
+#	define QHOTKEY_EXPORT
+#endif
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+	#define QHOTKEY_HASH_SEED size_t
+#else
+	#define QHOTKEY_HASH_SEED uint
+#endif
+
+//! A class to define global, systemwide Hotkeys
+class QHOTKEY_EXPORT QHotkey : public QObject
+{
+	Q_OBJECT
+	//! @private
+	friend class QHotkeyPrivate;
+
+	//! Specifies whether this hotkey is currently registered or not
+	Q_PROPERTY(bool registered READ isRegistered WRITE setRegistered NOTIFY registeredChanged)
+	//! Holds the shortcut this hotkey will be triggered on
+	Q_PROPERTY(QKeySequence shortcut READ shortcut WRITE setShortcut RESET resetShortcut)
+
+public:
+	//! Defines shortcut with native keycodes
+	class QHOTKEY_EXPORT NativeShortcut {
+	public:
+		//! The native keycode
+		quint32 key;
+		//! The native modifiers
+		quint32 modifier;
+
+		//! Creates an invalid native shortcut
+		NativeShortcut();
+		//! Creates a valid native shortcut, with the given key and modifiers
+		NativeShortcut(quint32 key, quint32 modifier = 0);
+
+		//! Checks, whether this shortcut is valid or not
+		bool isValid() const;
+
+		//! Equality operator
+		bool operator ==(NativeShortcut other) const;
+		//! Inequality operator
+		bool operator !=(NativeShortcut other) const;
+
+	private:
+		bool valid;
+	};
+
+	//! Adds a global mapping of a key sequence to a replacement native shortcut
+	static void addGlobalMapping(const QKeySequence &shortcut, NativeShortcut nativeShortcut);
+
+	//! Checks if global shortcuts are supported by the current platform
+	static bool isPlatformSupported();
+
+	//! Default Constructor
+	explicit QHotkey(QObject *parent = nullptr);
+	//! Constructs a hotkey with a shortcut and optionally registers it
+	explicit QHotkey(const QKeySequence &shortcut, bool autoRegister = false, QObject *parent = nullptr);
+	//! Constructs a hotkey with a key and modifiers and optionally registers it
+	explicit QHotkey(Qt::Key keyCode, Qt::KeyboardModifiers modifiers, bool autoRegister = false, QObject *parent = nullptr);
+	//! Constructs a hotkey from a native shortcut and optionally registers it
+	explicit QHotkey(NativeShortcut shortcut, bool autoRegister = false, QObject *parent = nullptr);
+	~QHotkey() override;
+
+	//! @readAcFn{QHotkey::registered}
+	bool isRegistered() const;
+	//! @readAcFn{QHotkey::shortcut}
+	QKeySequence shortcut() const;
+	//! @readAcFn{QHotkey::shortcut} - the key only
+	Qt::Key keyCode() const;
+	//! @readAcFn{QHotkey::shortcut} - the modifiers only
+	Qt::KeyboardModifiers modifiers() const;
+
+	//! Get the current native shortcut
+	NativeShortcut currentNativeShortcut() const;
+
+public slots:
+	//! @writeAcFn{QHotkey::registered}
+	bool setRegistered(bool registered);
+
+	//! @writeAcFn{QHotkey::shortcut}
+	bool setShortcut(const QKeySequence &shortcut, bool autoRegister = false);
+	//! @writeAcFn{QHotkey::shortcut}
+	bool setShortcut(Qt::Key keyCode, Qt::KeyboardModifiers modifiers, bool autoRegister = false);
+	//! @resetAcFn{QHotkey::shortcut}
+	bool resetShortcut();
+
+	//! Set this hotkey to a native shortcut
+	bool setNativeShortcut(QHotkey::NativeShortcut nativeShortcut, bool autoRegister = false);
+
+signals:
+	//! Will be emitted if the shortcut is pressed
+	void activated(QPrivateSignal);
+
+	//! Will be emitted if the shortcut press is released
+	void released(QPrivateSignal);
+
+	//! @notifyAcFn{QHotkey::registered}
+	void registeredChanged(bool registered);
+
+private:
+	Qt::Key _keyCode;
+	Qt::KeyboardModifiers _modifiers;
+
+	NativeShortcut _nativeShortcut;
+	bool _registered;
+};
+
+QHOTKEY_HASH_SEED QHOTKEY_EXPORT qHash(QHotkey::NativeShortcut key);
+QHOTKEY_HASH_SEED QHOTKEY_EXPORT qHash(QHotkey::NativeShortcut key, QHOTKEY_HASH_SEED seed);
+
+QHOTKEY_EXPORT Q_DECLARE_LOGGING_CATEGORY(logQHotkey)
+
+Q_DECLARE_METATYPE(QHotkey::NativeShortcut)
+
+#endif // QHOTKEY_H

Fluent/QHotkey/qhotkey_mac.cpp

@@ -0,0 +1,291 @@
+#include "qhotkey.h"
+#include "qhotkey_p.h"
+#include <Carbon/Carbon.h>
+#include <QDebug>
+
+class QHotkeyPrivateMac : public QHotkeyPrivate
+{
+public:
+	// QAbstractNativeEventFilter interface
+	bool nativeEventFilter(const QByteArray &eventType, void *message, _NATIVE_EVENT_RESULT *result) override;
+
+	static OSStatus hotkeyPressEventHandler(EventHandlerCallRef nextHandler, EventRef event, void* data);
+	static OSStatus hotkeyReleaseEventHandler(EventHandlerCallRef nextHandler, EventRef event, void* data);
+
+protected:
+	// QHotkeyPrivate interface
+	quint32 nativeKeycode(Qt::Key keycode, bool &ok) Q_DECL_OVERRIDE;
+	quint32 nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok) Q_DECL_OVERRIDE;
+	bool registerShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
+	bool unregisterShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
+
+private:
+	static bool isHotkeyHandlerRegistered;
+	static QHash<QHotkey::NativeShortcut, EventHotKeyRef> hotkeyRefs;
+};
+NATIVE_INSTANCE(QHotkeyPrivateMac)
+
+bool QHotkeyPrivate::isPlatformSupported()
+{
+	return true;
+}
+
+bool QHotkeyPrivateMac::isHotkeyHandlerRegistered = false;
+QHash<QHotkey::NativeShortcut, EventHotKeyRef> QHotkeyPrivateMac::hotkeyRefs;
+
+bool QHotkeyPrivateMac::nativeEventFilter(const QByteArray &eventType, void *message, _NATIVE_EVENT_RESULT *result)
+{
+	Q_UNUSED(eventType)
+	Q_UNUSED(message)
+	Q_UNUSED(result)
+	return false;
+}
+
+quint32 QHotkeyPrivateMac::nativeKeycode(Qt::Key keycode, bool &ok)
+{
+	// Constants found in NSEvent.h from AppKit.framework
+	ok = true;
+	switch (keycode) {
+	case Qt::Key_Return:
+		return kVK_Return;
+	case Qt::Key_Enter:
+		return kVK_ANSI_KeypadEnter;
+	case Qt::Key_Tab:
+		return kVK_Tab;
+	case Qt::Key_Space:
+		return kVK_Space;
+	case Qt::Key_Backspace:
+		return kVK_Delete;
+	case Qt::Key_Escape:
+		return kVK_Escape;
+	case Qt::Key_CapsLock:
+		return kVK_CapsLock;
+	case Qt::Key_Option:
+		return kVK_Option;
+	case Qt::Key_F17:
+		return kVK_F17;
+	case Qt::Key_VolumeUp:
+		return kVK_VolumeUp;
+	case Qt::Key_VolumeDown:
+		return kVK_VolumeDown;
+	case Qt::Key_F18:
+		return kVK_F18;
+	case Qt::Key_F19:
+		return kVK_F19;
+	case Qt::Key_F20:
+		return kVK_F20;
+	case Qt::Key_F5:
+		return kVK_F5;
+	case Qt::Key_F6:
+		return kVK_F6;
+	case Qt::Key_F7:
+		return kVK_F7;
+	case Qt::Key_F3:
+		return kVK_F3;
+	case Qt::Key_F8:
+		return kVK_F8;
+	case Qt::Key_F9:
+		return kVK_F9;
+	case Qt::Key_F11:
+		return kVK_F11;
+	case Qt::Key_F13:
+		return kVK_F13;
+	case Qt::Key_F16:
+		return kVK_F16;
+	case Qt::Key_F14:
+		return kVK_F14;
+	case Qt::Key_F10:
+		return kVK_F10;
+	case Qt::Key_F12:
+		return kVK_F12;
+	case Qt::Key_F15:
+		return kVK_F15;
+	case Qt::Key_Help:
+		return kVK_Help;
+	case Qt::Key_Home:
+		return kVK_Home;
+	case Qt::Key_PageUp:
+		return kVK_PageUp;
+	case Qt::Key_Delete:
+		return kVK_ForwardDelete;
+	case Qt::Key_F4:
+		return kVK_F4;
+	case Qt::Key_End:
+		return kVK_End;
+	case Qt::Key_F2:
+		return kVK_F2;
+	case Qt::Key_PageDown:
+		return kVK_PageDown;
+	case Qt::Key_F1:
+		return kVK_F1;
+	case Qt::Key_Left:
+		return kVK_LeftArrow;
+	case Qt::Key_Right:
+		return kVK_RightArrow;
+	case Qt::Key_Down:
+		return kVK_DownArrow;
+	case Qt::Key_Up:
+		return kVK_UpArrow;
+	default:
+		ok = false;
+		break;
+	}
+
+	UTF16Char ch = keycode;
+
+	CFDataRef currentLayoutData;
+	TISInputSourceRef currentKeyboard = TISCopyCurrentASCIICapableKeyboardLayoutInputSource();
+
+	if (currentKeyboard == NULL)
+		return 0;
+
+	currentLayoutData = (CFDataRef)TISGetInputSourceProperty(currentKeyboard, kTISPropertyUnicodeKeyLayoutData);
+	CFRelease(currentKeyboard);
+	if (currentLayoutData == NULL)
+		return 0;
+
+	UCKeyboardLayout* header = (UCKeyboardLayout*)CFDataGetBytePtr(currentLayoutData);
+	UCKeyboardTypeHeader* table = header->keyboardTypeList;
+
+	uint8_t *data = (uint8_t*)header;
+	for (quint32 i=0; i < header->keyboardTypeCount; i++) {
+		UCKeyStateRecordsIndex* stateRec = 0;
+		if (table[i].keyStateRecordsIndexOffset != 0) {
+			stateRec = reinterpret_cast<UCKeyStateRecordsIndex*>(data + table[i].keyStateRecordsIndexOffset);
+			if (stateRec->keyStateRecordsIndexFormat != kUCKeyStateRecordsIndexFormat) stateRec = 0;
+		}
+
+		UCKeyToCharTableIndex* charTable = reinterpret_cast<UCKeyToCharTableIndex*>(data + table[i].keyToCharTableIndexOffset);
+		if (charTable->keyToCharTableIndexFormat != kUCKeyToCharTableIndexFormat) continue;
+
+		for (quint32 j=0; j < charTable->keyToCharTableCount; j++) {
+			UCKeyOutput* keyToChar = reinterpret_cast<UCKeyOutput*>(data + charTable->keyToCharTableOffsets[j]);
+			for (quint32 k=0; k < charTable->keyToCharTableSize; k++) {
+				if (keyToChar[k] & kUCKeyOutputTestForIndexMask) {
+					long idx = keyToChar[k] & kUCKeyOutputGetIndexMask;
+					if (stateRec && idx < stateRec->keyStateRecordCount) {
+						UCKeyStateRecord* rec = reinterpret_cast<UCKeyStateRecord*>(data + stateRec->keyStateRecordOffsets[idx]);
+						if (rec->stateZeroCharData == ch) {
+							ok = true;
+							return k;
+						}
+					}
+				}
+				else if (!(keyToChar[k] & kUCKeyOutputSequenceIndexMask) && keyToChar[k] < 0xFFFE) {
+					if (keyToChar[k] == ch) {
+						ok = true;
+						return k;
+					}
+				}
+			}
+		}
+	}
+	return 0;
+}
+
+quint32 QHotkeyPrivateMac::nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok)
+{
+	quint32 nMods = 0;
+	if (modifiers & Qt::ShiftModifier)
+		nMods |= shiftKey;
+	if (modifiers & Qt::ControlModifier)
+		nMods |= cmdKey;
+	if (modifiers & Qt::AltModifier)
+		nMods |= optionKey;
+	if (modifiers & Qt::MetaModifier)
+		nMods |= controlKey;
+	if (modifiers & Qt::KeypadModifier)
+		nMods |= kEventKeyModifierNumLockMask;
+	ok = true;
+	return nMods;
+}
+
+bool QHotkeyPrivateMac::registerShortcut(QHotkey::NativeShortcut shortcut)
+{
+	if (!this->isHotkeyHandlerRegistered)
+	{
+		EventTypeSpec pressEventSpec;
+		pressEventSpec.eventClass = kEventClassKeyboard;
+		pressEventSpec.eventKind = kEventHotKeyPressed;
+		InstallApplicationEventHandler(&QHotkeyPrivateMac::hotkeyPressEventHandler, 1, &pressEventSpec, NULL, NULL);
+
+		EventTypeSpec releaseEventSpec;
+		releaseEventSpec.eventClass = kEventClassKeyboard;
+		releaseEventSpec.eventKind = kEventHotKeyReleased;
+		InstallApplicationEventHandler(&QHotkeyPrivateMac::hotkeyReleaseEventHandler, 1, &releaseEventSpec, NULL, NULL);
+	}
+
+	EventHotKeyID hkeyID;
+	hkeyID.signature = shortcut.key;
+	hkeyID.id = shortcut.modifier;
+
+	EventHotKeyRef eventRef = 0;
+	OSStatus status = RegisterEventHotKey(shortcut.key,
+										  shortcut.modifier,
+										  hkeyID,
+										  GetApplicationEventTarget(),
+										  0,
+										  &eventRef);
+	if (status != noErr) {
+		error = QString::number(status);
+		return false;
+	} else {
+		this->hotkeyRefs.insert(shortcut, eventRef);
+		return true;
+	}
+}
+
+bool QHotkeyPrivateMac::unregisterShortcut(QHotkey::NativeShortcut shortcut)
+{
+	EventHotKeyRef eventRef = QHotkeyPrivateMac::hotkeyRefs.value(shortcut);
+	OSStatus status = UnregisterEventHotKey(eventRef);
+	if (status != noErr) {
+		error = QString::number(status);
+		return false;
+	} else {
+		this->hotkeyRefs.remove(shortcut);
+		return true;
+	}
+}
+
+OSStatus QHotkeyPrivateMac::hotkeyPressEventHandler(EventHandlerCallRef nextHandler, EventRef event, void* data)
+{
+	Q_UNUSED(nextHandler);
+	Q_UNUSED(data);
+
+	if (GetEventClass(event) == kEventClassKeyboard &&
+		GetEventKind(event) == kEventHotKeyPressed) {
+		EventHotKeyID hkeyID;
+		GetEventParameter(event,
+						  kEventParamDirectObject,
+						  typeEventHotKeyID,
+						  NULL,
+						  sizeof(EventHotKeyID),
+						  NULL,
+						  &hkeyID);
+		hotkeyPrivate->activateShortcut({hkeyID.signature, hkeyID.id});
+	}
+
+	return noErr;
+}
+
+OSStatus QHotkeyPrivateMac::hotkeyReleaseEventHandler(EventHandlerCallRef nextHandler, EventRef event, void* data)
+{
+	Q_UNUSED(nextHandler);
+	Q_UNUSED(data);
+
+	if (GetEventClass(event) == kEventClassKeyboard &&
+		GetEventKind(event) == kEventHotKeyReleased) {
+		EventHotKeyID hkeyID;
+		GetEventParameter(event,
+											kEventParamDirectObject,
+											typeEventHotKeyID,
+											NULL,
+											sizeof(EventHotKeyID),
+											NULL,
+											&hkeyID);
+		hotkeyPrivate->releaseShortcut({hkeyID.signature, hkeyID.id});
+	}
+
+	return noErr;
+}

Fluent/QHotkey/qhotkey_p.h

@@ -0,0 +1,62 @@
+#ifndef QHOTKEY_P_H
+#define QHOTKEY_P_H
+
+#include "qhotkey.h"
+#include <QAbstractNativeEventFilter>
+#include <QMultiHash>
+#include <QMutex>
+#include <QGlobalStatic>
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+	#define _NATIVE_EVENT_RESULT qintptr
+#else
+	#define _NATIVE_EVENT_RESULT long
+#endif
+
+class QHOTKEY_EXPORT QHotkeyPrivate : public QObject, public QAbstractNativeEventFilter
+{
+	Q_OBJECT
+
+public:
+	QHotkeyPrivate();//singleton!!!
+	~QHotkeyPrivate();
+
+	static QHotkeyPrivate *instance();
+	static bool isPlatformSupported();
+
+	QHotkey::NativeShortcut nativeShortcut(Qt::Key keycode, Qt::KeyboardModifiers modifiers);
+
+	bool addShortcut(QHotkey *hotkey);
+	bool removeShortcut(QHotkey *hotkey);
+
+protected:
+	void activateShortcut(QHotkey::NativeShortcut shortcut);
+	void releaseShortcut(QHotkey::NativeShortcut shortcut);
+
+	virtual quint32 nativeKeycode(Qt::Key keycode, bool &ok) = 0;//platform implement
+	virtual quint32 nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok) = 0;//platform implement
+
+	virtual bool registerShortcut(QHotkey::NativeShortcut shortcut) = 0;//platform implement
+	virtual bool unregisterShortcut(QHotkey::NativeShortcut shortcut) = 0;//platform implement
+
+	QString error;
+
+private:
+	QHash<QPair<Qt::Key, Qt::KeyboardModifiers>, QHotkey::NativeShortcut> mapping;
+	QMultiHash<QHotkey::NativeShortcut, QHotkey*> shortcuts;
+
+	Q_INVOKABLE void addMappingInvoked(Qt::Key keycode, Qt::KeyboardModifiers modifiers, QHotkey::NativeShortcut nativeShortcut);
+	Q_INVOKABLE bool addShortcutInvoked(QHotkey *hotkey);
+	Q_INVOKABLE bool removeShortcutInvoked(QHotkey *hotkey);
+	Q_INVOKABLE QHotkey::NativeShortcut nativeShortcutInvoked(Qt::Key keycode, Qt::KeyboardModifiers modifiers);
+};
+
+#define NATIVE_INSTANCE(ClassName) \
+	Q_GLOBAL_STATIC(ClassName, hotkeyPrivate) \
+	\
+	QHotkeyPrivate *QHotkeyPrivate::instance()\
+	{\
+		return hotkeyPrivate;\
+	}
+
+#endif // QHOTKEY_P_H

Fluent/QHotkey/qhotkey_win.cpp

@@ -0,0 +1,309 @@
+#include "qhotkey.h"
+#include "qhotkey_p.h"
+#include <qt_windows.h>
+#include <algorithm>
+#include <QDebug>
+#include <QList>
+#include <QTimer>
+
+#define HKEY_ID(nativeShortcut) (((nativeShortcut.key ^ (nativeShortcut.modifier << 8)) & 0x0FFF) | 0x7000)
+
+#if !defined(MOD_NOREPEAT)
+#define MOD_NOREPEAT 0x4000
+#endif
+
+class QHotkeyPrivateWin : public QHotkeyPrivate
+{
+public:
+	QHotkeyPrivateWin();
+	// QAbstractNativeEventFilter interface
+	bool nativeEventFilter(const QByteArray &eventType, void *message, _NATIVE_EVENT_RESULT *result) override;
+
+protected:
+	void pollForHotkeyRelease();
+	// QHotkeyPrivate interface
+	quint32 nativeKeycode(Qt::Key keycode, bool &ok) Q_DECL_OVERRIDE;
+	quint32 nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok) Q_DECL_OVERRIDE;
+	bool registerShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
+	bool unregisterShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
+
+private:
+	static QString formatWinError(DWORD winError);
+	QTimer pollTimer;
+	QList<QHotkey::NativeShortcut> polledShortcuts;
+};
+NATIVE_INSTANCE(QHotkeyPrivateWin)
+
+QHotkeyPrivateWin::QHotkeyPrivateWin(){
+	pollTimer.setInterval(50);
+	connect(&pollTimer, &QTimer::timeout, this, &QHotkeyPrivateWin::pollForHotkeyRelease);
+}
+
+bool QHotkeyPrivate::isPlatformSupported()
+{
+	return true;
+}
+
+bool QHotkeyPrivateWin::nativeEventFilter(const QByteArray &eventType, void *message, _NATIVE_EVENT_RESULT *result)
+{
+	Q_UNUSED(eventType)
+	Q_UNUSED(result)
+
+	MSG* msg = static_cast<MSG*>(message);
+	if(msg->message == WM_HOTKEY) {
+		QHotkey::NativeShortcut shortcut = {HIWORD(msg->lParam), LOWORD(msg->lParam)};
+		this->activateShortcut(shortcut);
+		if (this->polledShortcuts.empty())
+			this->pollTimer.start();
+		this->polledShortcuts.append(shortcut);
+	}
+
+	return false;
+}
+
+void QHotkeyPrivateWin::pollForHotkeyRelease()
+{
+	auto it = std::remove_if(this->polledShortcuts.begin(), this->polledShortcuts.end(), [this](const QHotkey::NativeShortcut &shortcut) {
+		bool pressed = (GetAsyncKeyState(shortcut.key) & (1 << 15)) != 0;
+		if (!pressed)
+			this->releaseShortcut(shortcut);
+		return !pressed;
+	});
+	this->polledShortcuts.erase(it, this->polledShortcuts.end());
+	if (this->polledShortcuts.empty())
+		this->pollTimer.stop();
+}
+
+quint32 QHotkeyPrivateWin::nativeKeycode(Qt::Key keycode, bool &ok)
+{
+	ok = true;
+	if(keycode <= 0xFFFF) {//Try to obtain the key from it's "character"
+		const SHORT vKey = VkKeyScanW(static_cast<WCHAR>(keycode));
+		if(vKey > -1)
+			return LOBYTE(vKey);
+	}
+
+	//find key from switch/case --> Only finds a very small subset of keys
+	switch (keycode)
+	{
+	case Qt::Key_Escape:
+		return VK_ESCAPE;
+	case Qt::Key_Tab:
+	case Qt::Key_Backtab:
+		return VK_TAB;
+	case Qt::Key_Backspace:
+		return VK_BACK;
+	case Qt::Key_Return:
+	case Qt::Key_Enter:
+		return VK_RETURN;
+	case Qt::Key_Insert:
+		return VK_INSERT;
+	case Qt::Key_Delete:
+		return VK_DELETE;
+	case Qt::Key_Pause:
+		return VK_PAUSE;
+	case Qt::Key_Print:
+		return VK_PRINT;
+	case Qt::Key_Clear:
+		return VK_CLEAR;
+	case Qt::Key_Home:
+		return VK_HOME;
+	case Qt::Key_End:
+		return VK_END;
+	case Qt::Key_Left:
+		return VK_LEFT;
+	case Qt::Key_Up:
+		return VK_UP;
+	case Qt::Key_Right:
+		return VK_RIGHT;
+	case Qt::Key_Down:
+		return VK_DOWN;
+	case Qt::Key_PageUp:
+		return VK_PRIOR;
+	case Qt::Key_PageDown:
+		return VK_NEXT;
+	case Qt::Key_CapsLock:
+		return VK_CAPITAL;
+	case Qt::Key_NumLock:
+		return VK_NUMLOCK;
+	case Qt::Key_ScrollLock:
+		return VK_SCROLL;
+
+	case Qt::Key_F1:
+		return VK_F1;
+	case Qt::Key_F2:
+		return VK_F2;
+	case Qt::Key_F3:
+		return VK_F3;
+	case Qt::Key_F4:
+		return VK_F4;
+	case Qt::Key_F5:
+		return VK_F5;
+	case Qt::Key_F6:
+		return VK_F6;
+	case Qt::Key_F7:
+		return VK_F7;
+	case Qt::Key_F8:
+		return VK_F8;
+	case Qt::Key_F9:
+		return VK_F9;
+	case Qt::Key_F10:
+		return VK_F10;
+	case Qt::Key_F11:
+		return VK_F11;
+	case Qt::Key_F12:
+		return VK_F12;
+	case Qt::Key_F13:
+		return VK_F13;
+	case Qt::Key_F14:
+		return VK_F14;
+	case Qt::Key_F15:
+		return VK_F15;
+	case Qt::Key_F16:
+		return VK_F16;
+	case Qt::Key_F17:
+		return VK_F17;
+	case Qt::Key_F18:
+		return VK_F18;
+	case Qt::Key_F19:
+		return VK_F19;
+	case Qt::Key_F20:
+		return VK_F20;
+	case Qt::Key_F21:
+		return VK_F21;
+	case Qt::Key_F22:
+		return VK_F22;
+	case Qt::Key_F23:
+		return VK_F23;
+	case Qt::Key_F24:
+		return VK_F24;
+
+	case Qt::Key_Menu:
+		return VK_APPS;
+	case Qt::Key_Help:
+		return VK_HELP;
+	case Qt::Key_MediaNext:
+		return VK_MEDIA_NEXT_TRACK;
+	case Qt::Key_MediaPrevious:
+		return VK_MEDIA_PREV_TRACK;
+	case Qt::Key_MediaPlay:
+		return VK_MEDIA_PLAY_PAUSE;
+	case Qt::Key_MediaStop:
+		return VK_MEDIA_STOP;
+	case Qt::Key_VolumeDown:
+		return VK_VOLUME_DOWN;
+	case Qt::Key_VolumeUp:
+		return VK_VOLUME_UP;
+	case Qt::Key_VolumeMute:
+		return VK_VOLUME_MUTE;
+	case Qt::Key_Mode_switch:
+		return VK_MODECHANGE;
+	case Qt::Key_Select:
+		return VK_SELECT;
+	case Qt::Key_Printer:
+		return VK_PRINT;
+	case Qt::Key_Execute:
+		return VK_EXECUTE;
+	case Qt::Key_Sleep:
+		return VK_SLEEP;
+	case Qt::Key_Period:
+		return VK_DECIMAL;
+	case Qt::Key_Play:
+		return VK_PLAY;
+	case Qt::Key_Cancel:
+		return VK_CANCEL;
+
+	case Qt::Key_Forward:
+		return VK_BROWSER_FORWARD;
+	case Qt::Key_Refresh:
+		return VK_BROWSER_REFRESH;
+	case Qt::Key_Stop:
+		return VK_BROWSER_STOP;
+	case Qt::Key_Search:
+		return VK_BROWSER_SEARCH;
+	case Qt::Key_Favorites:
+		return VK_BROWSER_FAVORITES;
+	case Qt::Key_HomePage:
+		return VK_BROWSER_HOME;
+
+	case Qt::Key_LaunchMail:
+		return VK_LAUNCH_MAIL;
+	case Qt::Key_LaunchMedia:
+		return VK_LAUNCH_MEDIA_SELECT;
+	case Qt::Key_Launch0:
+		return VK_LAUNCH_APP1;
+	case Qt::Key_Launch1:
+		return VK_LAUNCH_APP2;
+
+	case Qt::Key_Massyo:
+		return VK_OEM_FJ_MASSHOU;
+	case Qt::Key_Touroku:
+		return VK_OEM_FJ_TOUROKU;
+
+	default:
+		if(keycode <= 0xFFFF)
+			return static_cast<BYTE>(keycode);
+		else {
+			ok = false;
+			return 0;
+		}
+	}
+}
+
+quint32 QHotkeyPrivateWin::nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok)
+{
+	quint32 nMods = 0;
+	if (modifiers & Qt::ShiftModifier)
+		nMods |= MOD_SHIFT;
+	if (modifiers & Qt::ControlModifier)
+		nMods |= MOD_CONTROL;
+	if (modifiers & Qt::AltModifier)
+		nMods |= MOD_ALT;
+	if (modifiers & Qt::MetaModifier)
+		nMods |= MOD_WIN;
+	ok = true;
+	return nMods;
+}
+
+bool QHotkeyPrivateWin::registerShortcut(QHotkey::NativeShortcut shortcut)
+{
+	BOOL ok = RegisterHotKey(NULL,
+							 HKEY_ID(shortcut),
+							 shortcut.modifier + MOD_NOREPEAT,
+							 shortcut.key);
+	if(ok)
+		return true;
+	else {
+		error = QHotkeyPrivateWin::formatWinError(::GetLastError());
+		return false;
+	}
+}
+
+bool QHotkeyPrivateWin::unregisterShortcut(QHotkey::NativeShortcut shortcut)
+{
+	BOOL ok = UnregisterHotKey(NULL, HKEY_ID(shortcut));
+	if(ok)
+		return true;
+	else {
+		error = QHotkeyPrivateWin::formatWinError(::GetLastError());
+		return false;
+	}
+}
+
+QString QHotkeyPrivateWin::formatWinError(DWORD winError)
+{
+	wchar_t *buffer = NULL;
+	DWORD num = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+							   NULL,
+							   winError,
+							   0,
+							   (LPWSTR)&buffer,
+							   0,
+							   NULL);
+	if(buffer) {
+		QString res = QString::fromWCharArray(buffer, num);
+		LocalFree(buffer);
+		return res;
+	} else
+		return QString();
+}

Fluent/QHotkey/qhotkey_x11.cpp

@@ -0,0 +1,271 @@
+#include "qhotkey.h"
+#include "qhotkey_p.h"
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
+	#include <QGuiApplication>
+#else
+	#include <QDebug>
+	#include <QX11Info>
+#endif
+
+#include <QThreadStorage>
+#include <QTimer>
+#include <X11/Xlib.h>
+#include <xcb/xcb.h>
+
+//compatibility to pre Qt 5.8
+#ifndef Q_FALLTHROUGH
+#define Q_FALLTHROUGH() (void)0
+#endif
+
+class QHotkeyPrivateX11 : public QHotkeyPrivate
+{
+public:
+	// QAbstractNativeEventFilter interface
+	bool nativeEventFilter(const QByteArray &eventType, void *message, _NATIVE_EVENT_RESULT *result) override;
+
+protected:
+	// QHotkeyPrivate interface
+	quint32 nativeKeycode(Qt::Key keycode, bool &ok) Q_DECL_OVERRIDE;
+	quint32 nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok) Q_DECL_OVERRIDE;
+	static QString getX11String(Qt::Key keycode);
+	bool registerShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
+	bool unregisterShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
+
+private:
+	static const QVector<quint32> specialModifiers;
+	static const quint32 validModsMask;
+	xcb_key_press_event_t prevHandledEvent;
+	xcb_key_press_event_t prevEvent;
+
+	static QString formatX11Error(Display *display, int errorCode);
+
+	class HotkeyErrorHandler {
+	public:
+		HotkeyErrorHandler();
+		~HotkeyErrorHandler();
+
+		static bool hasError;
+		static QString errorString;
+
+	private:
+		XErrorHandler prevHandler;
+
+		static int handleError(Display *display, XErrorEvent *error);
+	};
+};
+NATIVE_INSTANCE(QHotkeyPrivateX11)
+
+bool QHotkeyPrivate::isPlatformSupported()
+{
+#if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
+	return qGuiApp->nativeInterface<QNativeInterface::QX11Application>();
+#else
+	return QX11Info::isPlatformX11();
+#endif
+}
+
+const QVector<quint32> QHotkeyPrivateX11::specialModifiers = {0, Mod2Mask, LockMask, (Mod2Mask | LockMask)};
+const quint32 QHotkeyPrivateX11::validModsMask = ShiftMask | ControlMask | Mod1Mask | Mod4Mask;
+
+bool QHotkeyPrivateX11::nativeEventFilter(const QByteArray &eventType, void *message, _NATIVE_EVENT_RESULT *result)
+{
+	Q_UNUSED(eventType)
+	Q_UNUSED(result)
+
+	auto *genericEvent = static_cast<xcb_generic_event_t *>(message);
+	if (genericEvent->response_type == XCB_KEY_PRESS) {
+		xcb_key_press_event_t keyEvent = *static_cast<xcb_key_press_event_t *>(message);
+		this->prevEvent = keyEvent;
+		if (this->prevHandledEvent.response_type == XCB_KEY_RELEASE) {
+			if(this->prevHandledEvent.time == keyEvent.time) return false;
+		}
+		this->activateShortcut({keyEvent.detail, keyEvent.state & QHotkeyPrivateX11::validModsMask});
+	} else if (genericEvent->response_type == XCB_KEY_RELEASE) {
+		xcb_key_release_event_t keyEvent = *static_cast<xcb_key_release_event_t *>(message);
+		this->prevEvent = keyEvent;
+		QTimer::singleShot(50, [this, keyEvent] {
+			if(this->prevEvent.time == keyEvent.time && this->prevEvent.response_type == keyEvent.response_type && this->prevEvent.detail == keyEvent.detail){
+				this->releaseShortcut({keyEvent.detail, keyEvent.state & QHotkeyPrivateX11::validModsMask});
+			}
+		});
+		this->prevHandledEvent = keyEvent;
+	}
+
+	return false;
+}
+
+QString QHotkeyPrivateX11::getX11String(Qt::Key keycode)
+{
+	switch(keycode){
+
+		case Qt::Key_MediaLast :
+		case Qt::Key_MediaPrevious :
+			return QStringLiteral("XF86AudioPrev");
+		case Qt::Key_MediaNext :
+			return QStringLiteral("XF86AudioNext");
+		case Qt::Key_MediaPause :
+		case Qt::Key_MediaPlay :
+		case Qt::Key_MediaTogglePlayPause :
+			return QStringLiteral("XF86AudioPlay");
+		case Qt::Key_MediaRecord :
+			return QStringLiteral("XF86AudioRecord");
+		case Qt::Key_MediaStop :
+			return QStringLiteral("XF86AudioStop");
+		default :
+			return QKeySequence(keycode).toString(QKeySequence::NativeText);
+	}
+}
+
+quint32 QHotkeyPrivateX11::nativeKeycode(Qt::Key keycode, bool &ok)
+{
+	QString keyString = getX11String(keycode);
+
+	KeySym keysym = XStringToKeysym(keyString.toLatin1().constData());
+	if (keysym == NoSymbol) {
+		//not found -> just use the key
+		if(keycode <= 0xFFFF)
+			keysym = keycode;
+		else
+			return 0;
+	}
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
+	const QNativeInterface::QX11Application *x11Interface = qGuiApp->nativeInterface<QNativeInterface::QX11Application>();
+#else
+	const bool x11Interface = QX11Info::isPlatformX11();
+#endif
+
+	if(x11Interface) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
+		Display *display = x11Interface->display();
+#else
+		Display *display = QX11Info::display();
+#endif
+		auto res = XKeysymToKeycode(display, keysym);
+		if(res != 0)
+			ok = true;
+		return res;
+	}
+	return 0;
+}
+
+quint32 QHotkeyPrivateX11::nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok)
+{
+	quint32 nMods = 0;
+	if (modifiers & Qt::ShiftModifier)
+		nMods |= ShiftMask;
+	if (modifiers & Qt::ControlModifier)
+		nMods |= ControlMask;
+	if (modifiers & Qt::AltModifier)
+		nMods |= Mod1Mask;
+	if (modifiers & Qt::MetaModifier)
+		nMods |= Mod4Mask;
+	ok = true;
+	return nMods;
+}
+
+bool QHotkeyPrivateX11::registerShortcut(QHotkey::NativeShortcut shortcut)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
+	const QNativeInterface::QX11Application *x11Interface = qGuiApp->nativeInterface<QNativeInterface::QX11Application>();
+	Display *display = x11Interface->display();
+#else
+	const bool x11Interface = QX11Info::isPlatformX11();
+	Display *display = QX11Info::display();
+#endif
+
+	if(!display || !x11Interface)
+		return false;
+
+	HotkeyErrorHandler errorHandler;
+	for(quint32 specialMod : QHotkeyPrivateX11::specialModifiers) {
+		XGrabKey(display,
+				 shortcut.key,
+				 shortcut.modifier | specialMod,
+				 DefaultRootWindow(display),
+				 True,
+				 GrabModeAsync,
+				 GrabModeAsync);
+	}
+	XSync(display, False);
+
+	if(errorHandler.hasError) {
+		error = errorHandler.errorString;
+		this->unregisterShortcut(shortcut);
+		return false;
+	}
+	return true;
+}
+
+bool QHotkeyPrivateX11::unregisterShortcut(QHotkey::NativeShortcut shortcut)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
+	Display *display = qGuiApp->nativeInterface<QNativeInterface::QX11Application>()->display();
+#else
+	Display *display = QX11Info::display();
+#endif
+
+	if(!display)
+		return false;
+
+	HotkeyErrorHandler errorHandler;
+	for(quint32 specialMod : QHotkeyPrivateX11::specialModifiers) {
+		XUngrabKey(display,
+				   shortcut.key,
+				   shortcut.modifier | specialMod,
+				   XDefaultRootWindow(display));
+	}
+	XSync(display, False);
+
+	if(HotkeyErrorHandler::hasError) {
+		error = HotkeyErrorHandler::errorString;
+		return false;
+	}
+	return true;
+}
+
+QString QHotkeyPrivateX11::formatX11Error(Display *display, int errorCode)
+{
+	char errStr[256];
+	XGetErrorText(display, errorCode, errStr, 256);
+	return QString::fromLatin1(errStr);
+}
+
+
+
+// ---------- QHotkeyPrivateX11::HotkeyErrorHandler implementation ----------
+
+bool QHotkeyPrivateX11::HotkeyErrorHandler::hasError = false;
+QString QHotkeyPrivateX11::HotkeyErrorHandler::errorString;
+
+QHotkeyPrivateX11::HotkeyErrorHandler::HotkeyErrorHandler()
+{
+	prevHandler = XSetErrorHandler(&HotkeyErrorHandler::handleError);
+}
+
+QHotkeyPrivateX11::HotkeyErrorHandler::~HotkeyErrorHandler()
+{
+	XSetErrorHandler(prevHandler);
+	hasError = false;
+	errorString.clear();
+}
+
+int QHotkeyPrivateX11::HotkeyErrorHandler::handleError(Display *display, XErrorEvent *error)
+{
+	switch (error->error_code) {
+	case BadAccess:
+	case BadValue:
+	case BadWindow:
+		if (error->request_code == 33 || //grab key
+			error->request_code == 34) {// ungrab key
+			hasError = true;
+			errorString = QHotkeyPrivateX11::formatX11Error(display, error->error_code);
+			return 1;
+		}
+		Q_FALLTHROUGH();
+		// fall through
+	default:
+		return 0;
+	}
+}

Fluent/qml/InfoBar.qml

@@ -1,5 +1,6 @@
 import QtQuick as Quick
 import QtQuick.Controls
+import Fluent
 
 Object {
     property var root
@@ -48,8 +49,8 @@ Object {
                 move: Quick.Transition {
                     Quick.NumberAnimation {
                         properties: "y"
-                        easing.type: Easing.OutCubic
+                        easing.type: Quick.Easing.OutCubic
-                        duration: FluTheme.animationEnabled ? 333 : 0
+                        duration: Theme.animationEnabled ? 333 : 0
                     }
                 }
                 onChildrenChanged: if(children.length === 0)  destroy()
@@ -92,9 +93,9 @@ Object {
                     scale: item ? 1 : 0
                     asynchronous: true
                     Quick.Behavior on scale {
-                        enabled: FluTheme.animationEnabled
+                        enabled: Theme.animationEnabled
                         Quick.NumberAnimation {
-                            easing.type: Easing.OutCubic
+                            easing.type: Quick.Easing.OutCubic
                             duration: 167
                         }
                     }
@@ -106,7 +107,7 @@ Object {
             width:  rowlayout.width + (btn_close.visible ? 30 : 48)
             height: rowlayout.height + 20
             color: {
-                if(FluTheme.dark){
+                if(Theme.dark){
                     switch(_super.type){
                     case mcontrol.const_success: return Qt.rgba(57/255,61/255,27/255,1)
                     case mcontrol.const_warning: return Qt.rgba(67/255,53/255,25/255,1)
@@ -130,7 +131,7 @@ Object {
             radius: 4
             border.width: 1
             border.color: {
-                if(FluTheme.dark){
+                if(Theme.dark){
                     switch(_super.type){
                     case mcontrol.const_success: return Qt.rgba(56/255,61/255,27/255,1)
                     case mcontrol.const_warning: return Qt.rgba(66/255,53/255,25/255,1)
@@ -156,16 +157,16 @@ Object {
                 Icon{
                     iconSource:{
                         switch(_super.type){
-                        case mcontrol.const_success: return FluentIcons.CompletedSolid
+                        case mcontrol.const_success: return Icons.CompletedSolid
-                        case mcontrol.const_warning: return FluentIcons.InfoSolid
+                        case mcontrol.const_warning: return Icons.InfoSolid
-                        case mcontrol.const_info:    return FluentIcons.InfoSolid
+                        case mcontrol.const_info:    return Icons.InfoSolid
-                        case mcontrol.const_error:   return FluentIcons.StatusErrorFull
+                        case mcontrol.const_error:   return Icons.StatusErrorFull
                         }FluentIcons.StatusErrorFull
                         return FluentIcons.FA_info_circle
                     }
                     iconSize:20
                     iconColor: {
-                        if(FluTheme.dark){
+                        if(Theme.dark){
                             switch(_super.type){
                             case mcontrol.const_success: return Qt.rgba(108/255,203/255,95/255,1)
                             case mcontrol.const_warning: return Qt.rgba(252/255,225/255,0/255,1)
@@ -196,14 +197,14 @@ Object {
                         text: _super.moremsg
                         visible: _super.moremsg
                         wrapMode : Text.WrapAnywhere
-                        textColor: FluColors.Grey120
+                        textColor: Colors.Grey120
                         width: Math.min(implicitWidth,mcontrol.maxWidth)
                     }
                 }
 
                 IconButton{
                     id:btn_close
-                    iconSource: FluentIcons.ChromeClose
+                    iconSource: Icons.ChromeClose
                     iconSize: 10
                     verticalPadding: 0
                     horizontalPadding: 0
@@ -211,7 +212,7 @@ Object {
                     height: 20
                     visible: _super.duration<=0
                     anchors.verticalCenter: parent.verticalCenter
-                    iconColor: FluTheme.dark ? Qt.rgba(222/255,222/255,222/255,1) : Qt.rgba(97/255,97/255,97/255,1)
+                    iconColor: Theme.dark ? Qt.rgba(222/255,222/255,222/255,1) : Qt.rgba(97/255,97/255,97/255,1)
                     onClicked: _super.close()
                 }
             }