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core/xembed-sni-proxy/xcbutils.h

128 lines
3.5 KiB
C++

/********************************************************************
Copyright (C) 2012, 2013 Martin Graesslin <mgraesslin@kde.org>
Copyright (C) 2015 David Edmudson <davidedmundson@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_XCB_UTILS_H
#define KWIN_XCB_UTILS_H
#include <xcb/xcb.h>
#include <xcb/composite.h>
#include <xcb/randr.h>
#include <xcb/shm.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_event.h>
#include <xcb/damage.h>
#include <QScopedPointer>
#include <QVector>
#include <QX11Info>
/** XEMBED messages */
#define XEMBED_EMBEDDED_NOTIFY 0
#define XEMBED_WINDOW_ACTIVATE 1
#define XEMBED_WINDOW_DEACTIVATE 2
#define XEMBED_REQUEST_FOCUS 3
#define XEMBED_FOCUS_IN 4
#define XEMBED_FOCUS_OUT 5
#define XEMBED_FOCUS_NEXT 6
#define XEMBED_FOCUS_PREV 7
namespace Xcb {
typedef xcb_window_t WindowId;
template <typename T> using ScopedCPointer = QScopedPointer<T, QScopedPointerPodDeleter>;
class Atom
{
public:
explicit Atom(const QByteArray &name, bool onlyIfExists = false, xcb_connection_t *c = QX11Info::connection())
: m_connection(c)
, m_retrieved(false)
, m_cookie(xcb_intern_atom_unchecked(m_connection, onlyIfExists, name.length(), name.constData()))
, m_atom(XCB_ATOM_NONE)
, m_name(name)
{
}
Atom() = delete;
Atom(const Atom &) = delete;
~Atom() {
if (!m_retrieved && m_cookie.sequence) {
xcb_discard_reply(m_connection, m_cookie.sequence);
}
}
operator xcb_atom_t() const {
(const_cast<Atom*>(this))->getReply();
return m_atom;
}
bool isValid() {
getReply();
return m_atom != XCB_ATOM_NONE;
}
bool isValid() const {
(const_cast<Atom*>(this))->getReply();
return m_atom != XCB_ATOM_NONE;
}
inline const QByteArray &name() const {
return m_name;
}
private:
void getReply() {
if (m_retrieved || !m_cookie.sequence) {
return;
}
ScopedCPointer<xcb_intern_atom_reply_t> reply(xcb_intern_atom_reply(m_connection, m_cookie, nullptr));
if (!reply.isNull()) {
m_atom = reply->atom;
}
m_retrieved = true;
}
xcb_connection_t *m_connection;
bool m_retrieved;
xcb_intern_atom_cookie_t m_cookie;
xcb_atom_t m_atom;
QByteArray m_name;
};
class Atoms {
public:
Atoms() :
xembedAtom("_XEMBED"),
selectionAtom(xcb_atom_name_by_screen("_NET_SYSTEM_TRAY", QX11Info::appScreen())),
opcodeAtom("_NET_SYSTEM_TRAY_OPCODE"),
messageData("_NET_SYSTEM_TRAY_MESSAGE_DATA"),
visualAtom("_NET_SYSTEM_TRAY_VISUAL")
{}
Atom xembedAtom;
Atom selectionAtom;
Atom opcodeAtom;
Atom messageData;
Atom visualAtom;
};
extern Atoms* atoms;
} // namespace Xcb
#endif // KWIN_XCB_UTILS_H