1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
#include "qemu/osdep.h"
#include "ui/clipboard.h"
static NotifierList clipboard_notifiers =
NOTIFIER_LIST_INITIALIZER(clipboard_notifiers);
static QemuClipboardInfo *cbinfo[QEMU_CLIPBOARD_SELECTION__COUNT];
void qemu_clipboard_peer_register(QemuClipboardPeer *peer)
{
notifier_list_add(&clipboard_notifiers, &peer->update);
}
void qemu_clipboard_peer_unregister(QemuClipboardPeer *peer)
{
notifier_remove(&peer->update);
}
bool qemu_clipboard_peer_owns(QemuClipboardPeer *peer,
QemuClipboardSelection selection)
{
QemuClipboardInfo *info = qemu_clipboard_info(selection);
return info && info->owner == peer;
}
void qemu_clipboard_peer_release(QemuClipboardPeer *peer,
QemuClipboardSelection selection)
{
g_autoptr(QemuClipboardInfo) info = NULL;
if (qemu_clipboard_peer_owns(peer, selection)) {
/* set empty clipboard info */
info = qemu_clipboard_info_new(NULL, selection);
qemu_clipboard_update(info);
}
}
void qemu_clipboard_update(QemuClipboardInfo *info)
{
g_autoptr(QemuClipboardInfo) old = NULL;
assert(info->selection < QEMU_CLIPBOARD_SELECTION__COUNT);
notifier_list_notify(&clipboard_notifiers, info);
old = cbinfo[info->selection];
cbinfo[info->selection] = qemu_clipboard_info_ref(info);
}
QemuClipboardInfo *qemu_clipboard_info(QemuClipboardSelection selection)
{
assert(selection < QEMU_CLIPBOARD_SELECTION__COUNT);
return cbinfo[selection];
}
QemuClipboardInfo *qemu_clipboard_info_new(QemuClipboardPeer *owner,
QemuClipboardSelection selection)
{
QemuClipboardInfo *info = g_new0(QemuClipboardInfo, 1);
info->owner = owner;
info->selection = selection;
info->refcount = 1;
return info;
}
QemuClipboardInfo *qemu_clipboard_info_ref(QemuClipboardInfo *info)
{
info->refcount++;
return info;
}
void qemu_clipboard_info_unref(QemuClipboardInfo *info)
{
uint32_t type;
if (!info) {
return;
}
info->refcount--;
if (info->refcount > 0) {
return;
}
for (type = 0; type < QEMU_CLIPBOARD_TYPE__COUNT; type++) {
g_free(info->types[type].data);
}
g_free(info);
}
void qemu_clipboard_request(QemuClipboardInfo *info,
QemuClipboardType type)
{
if (info->types[type].data ||
info->types[type].requested ||
!info->types[type].available ||
!info->owner)
return;
info->types[type].requested = true;
info->owner->request(info, type);
}
void qemu_clipboard_set_data(QemuClipboardPeer *peer,
QemuClipboardInfo *info,
QemuClipboardType type,
uint32_t size,
const void *data,
bool update)
{
if (!info ||
info->owner != peer) {
return;
}
g_free(info->types[type].data);
info->types[type].data = g_memdup(data, size);
info->types[type].size = size;
info->types[type].available = true;
if (update) {
qemu_clipboard_update(info);
}
}
|
