1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qwaylandclipboard_p.h"
5#include "qwaylanddisplay_p.h"
6#include "qwaylandinputdevice_p.h"
7#include "qwaylanddataoffer_p.h"
8#include "qwaylanddatasource_p.h"
9#include "qwaylanddatadevice_p.h"
10#if QT_CONFIG(wayland_client_primary_selection)
11#include "qwaylandprimaryselectionv1_p.h"
12#endif
13
14QT_BEGIN_NAMESPACE
15
16namespace QtWaylandClient {
17
18QWaylandClipboard::QWaylandClipboard(QWaylandDisplay *display)
19 : mDisplay(display)
20{
21 m_clientClipboard[QClipboard::Clipboard] = nullptr;
22 m_clientClipboard[QClipboard::Selection] = nullptr;
23}
24
25QWaylandClipboard::~QWaylandClipboard()
26{
27 if (m_clientClipboard[QClipboard::Clipboard] != m_clientClipboard[QClipboard::Selection])
28 delete m_clientClipboard[QClipboard::Clipboard];
29 delete m_clientClipboard[QClipboard::Selection];
30}
31
32QMimeData *QWaylandClipboard::mimeData(QClipboard::Mode mode)
33{
34 auto *seat = mDisplay->currentInputDevice();
35 if (!seat)
36 return &m_emptyData;
37
38 switch (mode) {
39 case QClipboard::Clipboard:
40 if (auto *dataDevice = seat->dataDevice()) {
41 if (dataDevice->selectionSource())
42 return m_clientClipboard[QClipboard::Clipboard];
43 if (auto *offer = dataDevice->selectionOffer())
44 return offer->mimeData();
45 }
46 return &m_emptyData;
47 case QClipboard::Selection:
48#if QT_CONFIG(wayland_client_primary_selection)
49 if (auto *selectionDevice = seat->primarySelectionDevice()) {
50 if (selectionDevice->selectionSource())
51 return m_clientClipboard[QClipboard::Selection];
52 if (auto *offer = selectionDevice->selectionOffer())
53 return offer->mimeData();
54 }
55#endif
56 return &m_emptyData;
57 default:
58 return &m_emptyData;
59 }
60}
61
62void QWaylandClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode)
63{
64 auto *seat = mDisplay->currentInputDevice();
65 if (!seat) {
66 qCWarning(lcQpaWayland) << "Can't set clipboard contents with no wl_seats available";
67 return;
68 }
69
70 if (data && m_clientClipboard[mode] == data) // Already set before?
71 return;
72
73 static const QString plain = QStringLiteral("text/plain");
74 static const QString utf8 = QStringLiteral("text/plain;charset=utf-8");
75
76 if (data && data->hasFormat(mimetype: plain) && !data->hasFormat(mimetype: utf8))
77 data->setData(mimetype: utf8, data: data->data(mimetype: plain));
78
79 if (m_clientClipboard[mode]) {
80 if (m_clientClipboard[QClipboard::Clipboard] != m_clientClipboard[QClipboard::Selection])
81 delete m_clientClipboard[mode];
82 m_clientClipboard[mode] = nullptr;
83 }
84
85 m_clientClipboard[mode] = data;
86
87 switch (mode) {
88 case QClipboard::Clipboard:
89 if (auto *dataDevice = seat->dataDevice()) {
90 dataDevice->setSelectionSource(data ? new QWaylandDataSource(mDisplay->dndSelectionHandler(),
91 m_clientClipboard[QClipboard::Clipboard]) : nullptr);
92 emitChanged(mode);
93 }
94 break;
95 case QClipboard::Selection:
96#if QT_CONFIG(wayland_client_primary_selection)
97 if (auto *selectionDevice = seat->primarySelectionDevice()) {
98 selectionDevice->setSelectionSource(data ? new QWaylandPrimarySelectionSourceV1(mDisplay->primarySelectionManager(),
99 m_clientClipboard[QClipboard::Selection]) : nullptr);
100 emitChanged(mode);
101 }
102#endif
103 break;
104 default:
105 break;
106 }
107}
108
109bool QWaylandClipboard::supportsMode(QClipboard::Mode mode) const
110{
111#if QT_CONFIG(wayland_client_primary_selection)
112 if (mode == QClipboard::Selection) {
113 auto *seat = mDisplay->currentInputDevice();
114 return seat && seat->primarySelectionDevice();
115 }
116#endif
117 return mode == QClipboard::Clipboard;
118}
119
120bool QWaylandClipboard::ownsMode(QClipboard::Mode mode) const
121{
122 QWaylandInputDevice *seat = mDisplay->currentInputDevice();
123 if (!seat)
124 return false;
125
126 switch (mode) {
127 case QClipboard::Clipboard:
128 return seat->dataDevice() && seat->dataDevice()->selectionSource() != nullptr;
129#if QT_CONFIG(wayland_client_primary_selection)
130 case QClipboard::Selection:
131 return seat->primarySelectionDevice() && seat->primarySelectionDevice()->selectionSource() != nullptr;
132#endif
133 default:
134 return false;
135 }
136}
137
138}
139
140QT_END_NAMESPACE
141

source code of qtwayland/src/client/qwaylandclipboard.cpp