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core/xembed-sni-proxy/xcbutils.h

122 lines
2.7 KiB
C++

/*
SPDX-FileCopyrightText: 2012, 2013 Martin Graesslin <mgraesslin@kde.org>
SPDX-FileCopyrightText: 2015 David Edmudson <davidedmundson@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#pragma once
#include <xcb/composite.h>
#include <xcb/damage.h>
#include <xcb/randr.h>
#include <xcb/shm.h>
#include <xcb/xcb.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_event.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