File indexing completed on 2024-12-01 13:37:31

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2017 Martin Gräßlin <mgraesslin@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
 
 #include <KConfigGroup>
 #include <QHash>
 #include <QObject>
 #include <memory>
 
 namespace KWin
 {
 
 class Window;
 class KeyboardLayout;
 class Xkb;
 class VirtualDesktop;
 
 namespace KeyboardLayoutSwitching
 {
 
 class Policy : public QObject
 {
     Q_OBJECT
 public:
     ~Policy() override;
 
     virtual QString name() const = 0;
 
     static std::unique_ptr<Policy> create(Xkb *xkb, KeyboardLayout *layout, const KConfigGroup &config, const QString &policy);
 
 protected:
     explicit Policy(Xkb *xkb, KeyboardLayout *layout, const KConfigGroup &config = KConfigGroup());
     virtual void clearCache() = 0;
     virtual void layoutChanged(uint index) = 0;
 
     void setLayout(uint index);
 
     KConfigGroup m_config;
     virtual const QString defaultLayoutEntryKey() const;
     void clearLayouts();
 
     static const char defaultLayoutEntryKeyPrefix[];
     Xkb *m_xkb;
 
 private:
     KeyboardLayout *m_layout;
 };
 
 class GlobalPolicy : public Policy
 {
     Q_OBJECT
 public:
     explicit GlobalPolicy(Xkb *xkb, KeyboardLayout *layout, const KConfigGroup &config);
     ~GlobalPolicy() override;
 
     QString name() const override
     {
         return QStringLiteral("Global");
     }
 
 protected:
     void clearCache() override
     {
     }
     void layoutChanged(uint index) override
     {
     }
 
 private:
     const QString defaultLayoutEntryKey() const override;
 };
 
 class VirtualDesktopPolicy : public Policy
 {
     Q_OBJECT
 public:
     explicit VirtualDesktopPolicy(Xkb *xkb, KeyboardLayout *layout, const KConfigGroup &config);
     ~VirtualDesktopPolicy() override;
 
     QString name() const override
     {
         return QStringLiteral("Desktop");
     }
 
 protected:
     void clearCache() override;
     void layoutChanged(uint index) override;
 
 private:
     void desktopChanged();
     QHash<VirtualDesktop *, quint32> m_layouts;
 };
 
 class WindowPolicy : public Policy
 {
     Q_OBJECT
 public:
     explicit WindowPolicy(Xkb *xkb, KeyboardLayout *layout);
     ~WindowPolicy() override;
 
     QString name() const override
     {
         return QStringLiteral("Window");
     }
 
 protected:
     void clearCache() override;
     void layoutChanged(uint index) override;
 
 private:
     QHash<Window *, quint32> m_layouts;
 };
 
 class ApplicationPolicy : public Policy
 {
     Q_OBJECT
 public:
     explicit ApplicationPolicy(Xkb *xkb, KeyboardLayout *layout, const KConfigGroup &config);
     ~ApplicationPolicy() override;
 
     QString name() const override
     {
         return QStringLiteral("WinClass");
     }
 
 protected:
     void clearCache() override;
     void layoutChanged(uint index) override;
 
 private:
     void windowActivated(Window *window);
     QHash<Window *, quint32> m_layouts;
     QHash<QString, quint32> m_layoutsRestored;
 };
 
 }
 }