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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/*
* GTK UI -- clipboard support
*
* Copyright (C) 2021 Gerd Hoffmann <kraxel@redhat.com>
*
* 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/>.
*
*/
#include "qemu/osdep.h"
#include "qemu/main-loop.h"
#include "ui/gtk.h"
static QemuClipboardSelection gd_find_selection(GtkDisplayState *gd,
GtkClipboard *clipboard)
{
QemuClipboardSelection s;
for (s = 0; s < QEMU_CLIPBOARD_SELECTION__COUNT; s++) {
if (gd->gtkcb[s] == clipboard) {
return s;
}
}
return QEMU_CLIPBOARD_SELECTION_CLIPBOARD;
}
static void gd_clipboard_get_data(GtkClipboard *clipboard,
GtkSelectionData *selection_data,
guint selection_info,
gpointer data)
{
GtkDisplayState *gd = data;
QemuClipboardSelection s = gd_find_selection(gd, clipboard);
QemuClipboardType type = QEMU_CLIPBOARD_TYPE_TEXT;
g_autoptr(QemuClipboardInfo) info = NULL;
info = qemu_clipboard_info_ref(qemu_clipboard_info(s));
qemu_clipboard_request(info, type);
while (info == qemu_clipboard_info(s) &&
info->types[type].available &&
info->types[type].data == NULL) {
main_loop_wait(false);
}
if (info == qemu_clipboard_info(s) && gd->cbowner[s]) {
gtk_selection_data_set_text(selection_data,
info->types[type].data,
info->types[type].size);
} else {
/* clipboard owner changed while waiting for the data */
}
}
static void gd_clipboard_clear(GtkClipboard *clipboard,
gpointer data)
{
GtkDisplayState *gd = data;
QemuClipboardSelection s = gd_find_selection(gd, clipboard);
gd->cbowner[s] = false;
}
static void gd_clipboard_update_info(GtkDisplayState *gd,
QemuClipboardInfo *info)
{
QemuClipboardSelection s = info->selection;
bool self_update = info->owner == &gd->cbpeer;
if (info != qemu_clipboard_info(s)) {
gd->cbpending[s] = 0;
if (!self_update) {
g_autoptr(GtkTargetList) list = NULL;
GtkTargetEntry *targets;
gint n_targets;
list = gtk_target_list_new(NULL, 0);
if (info->types[QEMU_CLIPBOARD_TYPE_TEXT].available) {
gtk_target_list_add_text_targets(list, 0);
}
targets = gtk_target_table_new_from_list(list, &n_targets);
gtk_clipboard_clear(gd->gtkcb[s]);
if (targets) {
gd->cbowner[s] = true;
gtk_clipboard_set_with_data(gd->gtkcb[s],
targets, n_targets,
gd_clipboard_get_data,
gd_clipboard_clear,
gd);
gtk_target_table_free(targets, n_targets);
}
}
return;
}
if (self_update) {
return;
}
/*
* Clipboard got updated, with data probably. No action here, we
* are waiting for updates in gd_clipboard_get_data().
*/
}
static void gd_clipboard_notify(Notifier *notifier, void *data)
{
GtkDisplayState *gd =
container_of(notifier, GtkDisplayState, cbpeer.notifier);
QemuClipboardNotify *notify = data;
switch (notify->type) {
case QEMU_CLIPBOARD_UPDATE_INFO:
gd_clipboard_update_info(gd, notify->info);
return;
case QEMU_CLIPBOARD_RESET_SERIAL:
/* ignore */
return;
}
}
static void gd_clipboard_request(QemuClipboardInfo *info,
QemuClipboardType type)
{
GtkDisplayState *gd = container_of(info->owner, GtkDisplayState, cbpeer);
char *text;
switch (type) {
case QEMU_CLIPBOARD_TYPE_TEXT:
text = gtk_clipboard_wait_for_text(gd->gtkcb[info->selection]);
if (text) {
qemu_clipboard_set_data(&gd->cbpeer, info, type,
strlen(text), text, true);
g_free(text);
}
break;
default:
break;
}
}
static void gd_owner_change(GtkClipboard *clipboard,
GdkEvent *event,
gpointer data)
{
GtkDisplayState *gd = data;
QemuClipboardSelection s = gd_find_selection(gd, clipboard);
QemuClipboardInfo *info;
if (gd->cbowner[s]) {
/* ignore notifications about our own grabs */
return;
}
switch (event->owner_change.reason) {
case GDK_OWNER_CHANGE_NEW_OWNER:
info = qemu_clipboard_info_new(&gd->cbpeer, s);
if (gtk_clipboard_wait_is_text_available(clipboard)) {
info->types[QEMU_CLIPBOARD_TYPE_TEXT].available = true;
}
qemu_clipboard_update(info);
qemu_clipboard_info_unref(info);
break;
default:
qemu_clipboard_peer_release(&gd->cbpeer, s);
gd->cbowner[s] = false;
break;
}
}
void gd_clipboard_init(GtkDisplayState *gd)
{
gd->cbpeer.name = "gtk";
gd->cbpeer.notifier.notify = gd_clipboard_notify;
gd->cbpeer.request = gd_clipboard_request;
qemu_clipboard_peer_register(&gd->cbpeer);
gd->gtkcb[QEMU_CLIPBOARD_SELECTION_CLIPBOARD] =
gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
gd->gtkcb[QEMU_CLIPBOARD_SELECTION_PRIMARY] =
gtk_clipboard_get(GDK_SELECTION_PRIMARY);
gd->gtkcb[QEMU_CLIPBOARD_SELECTION_SECONDARY] =
gtk_clipboard_get(GDK_SELECTION_SECONDARY);
g_signal_connect(gd->gtkcb[QEMU_CLIPBOARD_SELECTION_CLIPBOARD],
"owner-change", G_CALLBACK(gd_owner_change), gd);
g_signal_connect(gd->gtkcb[QEMU_CLIPBOARD_SELECTION_PRIMARY],
"owner-change", G_CALLBACK(gd_owner_change), gd);
g_signal_connect(gd->gtkcb[QEMU_CLIPBOARD_SELECTION_SECONDARY],
"owner-change", G_CALLBACK(gd_owner_change), gd);
}
|
