kwin/plugins/platforms/x11/windowed/x11windowed_backend.h
Martin Flöser d49642ca15 Add touch support to x11 windowed platform
Summary:
This change inits XInput extension, listens for touch events and
forwards them to our platform API. Thus touch events are forwarded on a
nested wayland session on X11.

Please note that I only tested this change on Xwayland.

Test Plan: Run nested kwin_wayland with two outputs and looked into debug console

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D17369
2018-12-31 07:57:09 +01:00

120 lines
3.7 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 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_X11WINDOWED_BACKEND_H
#define KWIN_X11WINDOWED_BACKEND_H
#include "platform.h"
#include <kwin_export.h>
#include <QObject>
#include <QSize>
#include <xcb/xcb.h>
struct _XDisplay;
typedef struct _XDisplay Display;
typedef struct _XCBKeySymbols xcb_key_symbols_t;
class NETWinInfo;
namespace KWin
{
class KWIN_EXPORT X11WindowedBackend : public Platform
{
Q_OBJECT
Q_INTERFACES(KWin::Platform)
Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "x11.json")
Q_PROPERTY(QSize size READ screenSize NOTIFY sizeChanged)
public:
X11WindowedBackend(QObject *parent = nullptr);
virtual ~X11WindowedBackend();
void init() override;
QVector<QRect> screenGeometries() const override;
QVector<qreal> screenScales() const override;
xcb_connection_t *connection() const {
return m_connection;
}
int screenNumer() const {
return m_screenNumber;
}
xcb_window_t window() const {
return windowForScreen(0);
}
xcb_window_t windowForScreen(int screen) const;
Display *display() const {
return m_display;
}
xcb_window_t rootWindow() const;
Screens *createScreens(QObject *parent = nullptr) override;
OpenGLBackend *createOpenGLBackend() override;
QPainterBackend* createQPainterBackend() override;
void warpPointer(const QPointF &globalPos) override;
QVector<CompositingType> supportedCompositors() const override {
return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing};
}
Q_SIGNALS:
void sizeChanged();
private:
void createWindow();
void startEventReading();
void grabKeyboard(xcb_timestamp_t time);
void updateWindowTitle();
void handleEvent(xcb_generic_event_t *event);
void handleClientMessage(xcb_client_message_event_t *event);
void handleButtonPress(xcb_button_press_event_t *event);
void handleExpose(xcb_expose_event_t *event);
void updateSize(xcb_configure_notify_event_t *event);
void createCursor(const QImage &img, const QPoint &hotspot);
void initXInputForWindow(xcb_window_t window);
void initXInput();
xcb_connection_t *m_connection = nullptr;
xcb_screen_t *m_screen = nullptr;
xcb_key_symbols_t *m_keySymbols = nullptr;
int m_screenNumber = 0;
struct Output {
xcb_window_t window = XCB_WINDOW_NONE;
QSize size;
qreal scale = 1;
QPoint xPosition;
QPoint internalPosition;
NETWinInfo *winInfo = nullptr;
};
QVector<Output> m_windows;
xcb_atom_t m_protocols = XCB_ATOM_NONE;
xcb_atom_t m_deleteWindowProtocol = XCB_ATOM_NONE;
xcb_cursor_t m_cursor = XCB_CURSOR_NONE;
Display *m_display = nullptr;
bool m_keyboardGrabbed = false;
bool m_hasXInput = false;
int m_xiOpcode = 0;
int m_majorVersion = 0;
int m_minorVersion = 0;
};
}
#endif