1 files changed, 82 insertions, 0 deletions
diff --git a/src/gui/platform/darwin/qapplekeymapper_p.h b/src/gui/platform/darwin/qapplekeymapper_p.h
new file mode 100644
index 0000000000..1f3494d16f
--- /dev/null
+++ b/src/gui/platform/darwin/qapplekeymapper_p.h
@@ -0,0 +1,82 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QAPPLEKEYMAPPER_H
+#define QAPPLEKEYMAPPER_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifdef Q_OS_MACOS
+#include <Carbon/Carbon.h>
+#endif
+
+#include <qpa/qplatformkeymapper.h>
+
+#include <QtCore/QList>
+#include <QtCore/QHash>
+#include <QtGui/QKeyEvent>
+
+#include <QtCore/private/qcore_mac_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class Q_GUI_EXPORT QAppleKeyMapper : public QPlatformKeyMapper
+{
+public:
+    Qt::KeyboardModifiers queryKeyboardModifiers() const override;
+    QList<QKeyCombination> possibleKeyCombinations(const QKeyEvent *event) const override;
+
+#ifdef Q_OS_MACOS
+    static Qt::KeyboardModifiers fromCocoaModifiers(NSEventModifierFlags cocoaModifiers);
+    static NSEventModifierFlags toCocoaModifiers(Qt::KeyboardModifiers);
+
+    static QChar toCocoaKey(Qt::Key key);
+    static Qt::Key fromCocoaKey(QChar keyCode);
+#else
+    static Qt::Key fromNSString(Qt::KeyboardModifiers qtMods, NSString *characters,
+                            NSString *charactersIgnoringModifiers, QString &text);
+
+    static Qt::Key fromUIKitKey(NSString *keyCode);
+    static Qt::KeyboardModifiers fromUIKitModifiers(ulong uikitModifiers);
+    static ulong toUIKitModifiers(Qt::KeyboardModifiers);
+#endif
+private:
+#ifdef Q_OS_MACOS
+    static constexpr int kNumModifierCombinations = 16;
+    struct KeyMap : std::array<char32_t, kNumModifierCombinations>
+    {
+        // Initialize first element to a sentinel that allows us
+        // to distinguish an uninitialized map from an initialized.
+        // Using 0 would not allow us to map U+0000 (NUL), however
+        // unlikely that is.
+        KeyMap() : std::array<char32_t, 16>{Qt::Key_unknown} {}
+    };
+
+    bool updateKeyboard();
+
+    using VirtualKeyCode = unsigned short;
+    const KeyMap &keyMapForKey(VirtualKeyCode virtualKey) const;
+
+    QCFType<TISInputSourceRef> m_currentInputSource = nullptr;
+
+    enum { NullMode, UnicodeMode, OtherMode } m_keyboardMode = NullMode;
+    const UCKeyboardLayout *m_keyboardLayoutFormat = nullptr;
+    KeyboardLayoutKind m_keyboardKind = kKLKCHRuchrKind;
+
+    mutable QHash<VirtualKeyCode, KeyMap> m_keyMap;
+#endif
+};
+
+QT_END_NAMESPACE
+
+#endif
+