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Commit | Line | Data |
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660e8d0f GH |
1 | #include "qemu/osdep.h" |
2 | #include "ui/clipboard.h" | |
3 | ||
4 | static NotifierList clipboard_notifiers = | |
5 | NOTIFIER_LIST_INITIALIZER(clipboard_notifiers); | |
6 | ||
684e64d3 MAL |
7 | static QemuClipboardInfo *cbinfo[QEMU_CLIPBOARD_SELECTION__COUNT]; |
8 | ||
660e8d0f GH |
9 | void qemu_clipboard_peer_register(QemuClipboardPeer *peer) |
10 | { | |
11 | notifier_list_add(&clipboard_notifiers, &peer->update); | |
12 | } | |
13 | ||
14 | void qemu_clipboard_peer_unregister(QemuClipboardPeer *peer) | |
15 | { | |
7424bfaa MAL |
16 | int i; |
17 | ||
18 | for (i = 0; i < QEMU_CLIPBOARD_SELECTION__COUNT; i++) { | |
19 | qemu_clipboard_peer_release(peer, i); | |
20 | } | |
21 | ||
660e8d0f GH |
22 | notifier_remove(&peer->update); |
23 | } | |
24 | ||
482bbaf4 MAL |
25 | bool qemu_clipboard_peer_owns(QemuClipboardPeer *peer, |
26 | QemuClipboardSelection selection) | |
27 | { | |
28 | QemuClipboardInfo *info = qemu_clipboard_info(selection); | |
29 | ||
30 | return info && info->owner == peer; | |
31 | } | |
32 | ||
1387865e MAL |
33 | void qemu_clipboard_peer_release(QemuClipboardPeer *peer, |
34 | QemuClipboardSelection selection) | |
35 | { | |
36 | g_autoptr(QemuClipboardInfo) info = NULL; | |
37 | ||
38 | if (qemu_clipboard_peer_owns(peer, selection)) { | |
39 | /* set empty clipboard info */ | |
40 | info = qemu_clipboard_info_new(NULL, selection); | |
41 | qemu_clipboard_update(info); | |
42 | } | |
43 | } | |
44 | ||
660e8d0f GH |
45 | void qemu_clipboard_update(QemuClipboardInfo *info) |
46 | { | |
684e64d3 MAL |
47 | g_autoptr(QemuClipboardInfo) old = NULL; |
48 | assert(info->selection < QEMU_CLIPBOARD_SELECTION__COUNT); | |
49 | ||
660e8d0f | 50 | notifier_list_notify(&clipboard_notifiers, info); |
684e64d3 MAL |
51 | |
52 | old = cbinfo[info->selection]; | |
53 | cbinfo[info->selection] = qemu_clipboard_info_ref(info); | |
54 | } | |
55 | ||
56 | QemuClipboardInfo *qemu_clipboard_info(QemuClipboardSelection selection) | |
57 | { | |
58 | assert(selection < QEMU_CLIPBOARD_SELECTION__COUNT); | |
59 | ||
60 | return cbinfo[selection]; | |
660e8d0f GH |
61 | } |
62 | ||
63 | QemuClipboardInfo *qemu_clipboard_info_new(QemuClipboardPeer *owner, | |
64 | QemuClipboardSelection selection) | |
65 | { | |
66 | QemuClipboardInfo *info = g_new0(QemuClipboardInfo, 1); | |
67 | ||
68 | info->owner = owner; | |
69 | info->selection = selection; | |
70 | info->refcount = 1; | |
71 | ||
72 | return info; | |
73 | } | |
74 | ||
75 | QemuClipboardInfo *qemu_clipboard_info_ref(QemuClipboardInfo *info) | |
76 | { | |
77 | info->refcount++; | |
78 | return info; | |
79 | } | |
80 | ||
81 | void qemu_clipboard_info_unref(QemuClipboardInfo *info) | |
82 | { | |
83 | uint32_t type; | |
84 | ||
85 | if (!info) { | |
86 | return; | |
87 | } | |
88 | ||
89 | info->refcount--; | |
90 | if (info->refcount > 0) { | |
91 | return; | |
92 | } | |
93 | ||
94 | for (type = 0; type < QEMU_CLIPBOARD_TYPE__COUNT; type++) { | |
95 | g_free(info->types[type].data); | |
96 | } | |
97 | g_free(info); | |
98 | } | |
99 | ||
100 | void qemu_clipboard_request(QemuClipboardInfo *info, | |
101 | QemuClipboardType type) | |
102 | { | |
103 | if (info->types[type].data || | |
104 | info->types[type].requested || | |
105 | !info->types[type].available || | |
106 | !info->owner) | |
107 | return; | |
108 | ||
109 | info->types[type].requested = true; | |
110 | info->owner->request(info, type); | |
111 | } | |
112 | ||
113 | void qemu_clipboard_set_data(QemuClipboardPeer *peer, | |
114 | QemuClipboardInfo *info, | |
115 | QemuClipboardType type, | |
116 | uint32_t size, | |
7e3e20d8 | 117 | const void *data, |
660e8d0f GH |
118 | bool update) |
119 | { | |
120 | if (!info || | |
121 | info->owner != peer) { | |
122 | return; | |
123 | } | |
124 | ||
125 | g_free(info->types[type].data); | |
126 | info->types[type].data = g_memdup(data, size); | |
127 | info->types[type].size = size; | |
128 | info->types[type].available = true; | |
129 | ||
130 | if (update) { | |
131 | qemu_clipboard_update(info); | |
132 | } | |
133 | } |