kwin/keyboard_layout.h
Martin Gräßlin d6c0a5414e Split implementation of keyboard layout handling into a dedicated class
Summary:
So far the implementation of keyboard layout handling was split between
KeyboardInputRedirection and Xkb. KeyboardInputRedirection registered
the global shortcut and did the handling for layout switch and config
changes. Xkb did the notification on layout change.

Layout changes can nowadays be detected through an InputEventSpy. It
can only happen after a key change or an explicit layout switch. Thus
it does not need to be in Xkb anymore which allows to reduce Xkb to
only care about the Xkb keymap and state tracking.

This change introduces a new class KeyboardLayout which is an
InputEventSpy and takes over the task of the layout change notification
from Xkb and the layout management from KeyboardInputRedirection. Thus
everything related to management of keyboard layout is together in one
class.

This allows in future to add unit test to it (requires further cleanup
of Xkb to be able to use it and drop the InputRedirection dependency) and
opens the possibility to also take over keyboard layout management on X11
for the Plasma desktop.

Test Plan: Manual testing

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D4135
2017-01-18 17:52:45 +01:00

56 lines
1.5 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016, 2017 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_KEYBOARD_LAYOUT_H
#define KWIN_KEYBOARD_LAYOUT_H
#include "input_event_spy.h"
#include <QObject>
typedef uint32_t xkb_layout_index_t;
namespace KWin
{
class Xkb;
class KeyboardLayout : public QObject, public InputEventSpy
{
Q_OBJECT
public:
explicit KeyboardLayout(Xkb *xkb);
~KeyboardLayout() override;
void init();
void checkLayoutChange();
void resetLayout();
void keyEvent(KeyEvent *event) override;
private Q_SLOTS:
void reconfigure();
private:
void notifyLayoutChange();
Xkb *m_xkb;
xkb_layout_index_t m_layout = 0;
};
}
#endif