1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the plugins of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QXCBNATIVEINTERFACE_H
41#define QXCBNATIVEINTERFACE_H
42
43#include <qpa/qplatformnativeinterface.h>
44#include <xcb/xcb.h>
45
46#include <QtCore/QRect>
47
48#include "qxcbexport.h"
49#include "qxcbconnection.h"
50
51QT_BEGIN_NAMESPACE
52
53class QXcbScreen;
54class QXcbNativeInterfaceHandler;
55
56class Q_XCB_EXPORT QXcbNativeInterface : public QPlatformNativeInterface
57{
58 Q_OBJECT
59public:
60 enum ResourceType {
61 Display,
62 Connection,
63 Screen,
64 AppTime,
65 AppUserTime,
66 ScreenHintStyle,
67 StartupId,
68 TrayWindow,
69 GetTimestamp,
70 X11Screen,
71 RootWindow,
72 ScreenSubpixelType,
73 ScreenAntialiasingEnabled,
74 AtspiBus,
75 CompositingEnabled,
76 VkSurface,
77 GeneratePeekerId,
78 RemovePeekerId,
79 PeekEventQueue
80 };
81
82 QXcbNativeInterface();
83
84 void *nativeResourceForIntegration(const QByteArray &resource) override;
85 void *nativeResourceForContext(const QByteArray &resourceString, QOpenGLContext *context) override;
86 void *nativeResourceForScreen(const QByteArray &resource, QScreen *screen) override;
87 void *nativeResourceForWindow(const QByteArray &resourceString, QWindow *window) override;
88 void *nativeResourceForBackingStore(const QByteArray &resource, QBackingStore *backingStore) override;
89#ifndef QT_NO_CURSOR
90 void *nativeResourceForCursor(const QByteArray &resource, const QCursor &cursor) override;
91#endif
92
93 NativeResourceForIntegrationFunction nativeResourceFunctionForIntegration(const QByteArray &resource) override;
94 NativeResourceForContextFunction nativeResourceFunctionForContext(const QByteArray &resource) override;
95 NativeResourceForScreenFunction nativeResourceFunctionForScreen(const QByteArray &resource) override;
96 NativeResourceForWindowFunction nativeResourceFunctionForWindow(const QByteArray &resource) override;
97 NativeResourceForBackingStoreFunction nativeResourceFunctionForBackingStore(const QByteArray &resource) override;
98
99 QFunctionPointer platformFunction(const QByteArray &function) const override;
100
101 inline const QByteArray &nativeEventType() const { return m_nativeEventType; }
102
103 void *displayForWindow(QWindow *window);
104 void *connectionForWindow(QWindow *window);
105 void *screenForWindow(QWindow *window);
106 void *appTime(const QXcbScreen *screen);
107 void *appUserTime(const QXcbScreen *screen);
108 void *getTimestamp(const QXcbScreen *screen);
109 void *startupId();
110 void *x11Screen();
111 void *rootWindow();
112 void *display();
113 void *atspiBus();
114 void *connection();
115 static void setStartupId(const char *);
116 static void setAppTime(QScreen *screen, xcb_timestamp_t time);
117 static void setAppUserTime(QScreen *screen, xcb_timestamp_t time);
118
119 static qint32 generatePeekerId();
120 static bool removePeekerId(qint32 peekerId);
121 static bool peekEventQueue(QXcbEventQueue::PeekerCallback peeker, void *peekerData = nullptr,
122 QXcbEventQueue::PeekOptions option = QXcbEventQueue::PeekDefault,
123 qint32 peekerId = -1);
124
125 Q_INVOKABLE QString dumpConnectionNativeWindows(const QXcbConnection *connection, WId root) const;
126 Q_INVOKABLE QString dumpNativeWindows(WId root = 0) const;
127
128 void addHandler(QXcbNativeInterfaceHandler *handler);
129 void removeHandler(QXcbNativeInterfaceHandler *handler);
130signals:
131 void systemTrayWindowChanged(QScreen *screen);
132
133private:
134 const QByteArray m_nativeEventType = QByteArrayLiteral("xcb_generic_event_t");
135
136 xcb_atom_t m_sysTraySelectionAtom = XCB_ATOM_NONE;
137
138 static QXcbScreen *qPlatformScreenForWindow(QWindow *window);
139
140 QList<QXcbNativeInterfaceHandler *> m_handlers;
141 NativeResourceForIntegrationFunction handlerNativeResourceFunctionForIntegration(const QByteArray &resource) const;
142 NativeResourceForContextFunction handlerNativeResourceFunctionForContext(const QByteArray &resource) const;
143 NativeResourceForScreenFunction handlerNativeResourceFunctionForScreen(const QByteArray &resource) const;
144 NativeResourceForWindowFunction handlerNativeResourceFunctionForWindow(const QByteArray &resource) const;
145 NativeResourceForBackingStoreFunction handlerNativeResourceFunctionForBackingStore(const QByteArray &resource) const;
146 QFunctionPointer handlerPlatformFunction(const QByteArray &function) const;
147 void *handlerNativeResourceForIntegration(const QByteArray &resource) const;
148 void *handlerNativeResourceForContext(const QByteArray &resource, QOpenGLContext *context) const;
149 void *handlerNativeResourceForScreen(const QByteArray &resource, QScreen *screen) const;
150 void *handlerNativeResourceForWindow(const QByteArray &resource, QWindow *window) const;
151 void *handlerNativeResourceForBackingStore(const QByteArray &resource, QBackingStore *backingStore) const;
152};
153
154QT_END_NAMESPACE
155
156#endif // QXCBNATIVEINTERFACE_H
157

source code of qtbase/src/plugins/platforms/xcb/qxcbnativeinterface.h