88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2014 Fredrik Höglund <fredrik@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef X11EVENTFILTER_H
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#define X11EVENTFILTER_H
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#include <xcb/xcb.h>
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#include <QVector>
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#include <kwin_export.h>
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namespace KWin
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{
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class KWIN_EXPORT X11EventFilter
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{
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public:
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/**
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* Creates an event filter for the given event type.
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*/
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X11EventFilter(int eventType, int opcode = 0, int genericEventType = 0);
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X11EventFilter(int eventType, int opcode, const QVector<int> &genericEventTypes);
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X11EventFilter(const QVector<int> &eventTypes);
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/**
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* Destroys the event filter.
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*/
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virtual ~X11EventFilter();
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/**
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* Returns the type of events to filter.
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*/
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QVector<int> eventTypes() const { return m_eventTypes; }
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/**
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* Returns the major opcode of the extension.
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*
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* Only used when the event type is XCB_GE_GENERIC.
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*/
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int extension() const { return m_extension; }
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/**
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* Returns the types of generic events to filter.
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*
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* Only used when the event type is XCB_GE_GENERIC.
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*/
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QVector<int> genericEventTypes() const { return m_genericEventTypes; }
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/**
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* This method is called for every event of the filtered type.
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*
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* Return true to accept the event and stop further processing, and false otherwise.
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*/
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virtual bool event(xcb_generic_event_t *event) = 0;
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/**
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* Whether the event filter is for XCB_GE_GENERIC events.
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*/
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bool isGenericEvent() const;
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private:
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QVector<int> m_eventTypes;
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int m_extension;
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QVector<int> m_genericEventTypes;
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};
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} // namespace KWin
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#endif
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