#ifndef QHOTKEY_P_H
#define QHOTKEY_P_H

#include "qhotkey.h"
#include <QAbstractNativeEventFilter>
#include <QMultiHash>
#include <QMutex>
#include <QGlobalStatic>

class QHOTKEY_SHARED_EXPORT QHotkeyPrivate : public QObject, public QAbstractNativeEventFilter
{
    Q_OBJECT

public: QHotkeyPrivate();//singleton!!!
    ~QHotkeyPrivate();

    static QHotkeyPrivate *instance();

    QHotkey::NativeShortcut nativeShortcut(Qt::Key keycode, Qt::KeyboardModifiers modifiers);

    bool addShortcut(QHotkey *hotkey);
    bool removeShortcut(QHotkey *hotkey);

protected:
    void activateShortcut(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

private:
    QMultiHash<QHotkey::NativeShortcut, QHotkey *> shortcuts;

    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