Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200406' into...
[qemu.git] / ui / x_keymap.c
1 /*
2 * QEMU X11 keymaps
3 *
4 * Copyright (C) 2009-2010 Daniel P. Berrange <dan@berrange.com>
5 * Copyright (C) 2017 Red Hat, Inc
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include "qemu/osdep.h"
13
14 #include "x_keymap.h"
15 #include "trace.h"
16 #include "qemu/notify.h"
17 #include "ui/input.h"
18
19 #include <X11/XKBlib.h>
20 #include <X11/Xutil.h>
21
22 static gboolean check_for_xwin(Display *dpy)
23 {
24 const char *vendor = ServerVendor(dpy);
25
26 trace_xkeymap_vendor(vendor);
27
28 if (strstr(vendor, "Cygwin/X")) {
29 return TRUE;
30 }
31
32 return FALSE;
33 }
34
35 static gboolean check_for_xquartz(Display *dpy)
36 {
37 int nextensions;
38 int i;
39 gboolean match = FALSE;
40 char **extensions = XListExtensions(dpy, &nextensions);
41 for (i = 0 ; extensions != NULL && i < nextensions ; i++) {
42 trace_xkeymap_extension(extensions[i]);
43 if (strcmp(extensions[i], "Apple-WM") == 0 ||
44 strcmp(extensions[i], "Apple-DRI") == 0) {
45 match = TRUE;
46 }
47 }
48 if (extensions) {
49 XFreeExtensionList(extensions);
50 }
51
52 return match;
53 }
54
55 const guint16 *qemu_xkeymap_mapping_table(Display *dpy, size_t *maplen)
56 {
57 XkbDescPtr desc;
58 const gchar *keycodes = NULL;
59
60 /* There is no easy way to determine what X11 server
61 * and platform & keyboard driver is in use. Thus we
62 * do best guess heuristics.
63 *
64 * This will need more work for people with other
65 * X servers..... patches welcomed.
66 */
67
68 desc = XkbGetMap(dpy,
69 XkbGBN_AllComponentsMask,
70 XkbUseCoreKbd);
71 if (desc) {
72 if (XkbGetNames(dpy, XkbKeycodesNameMask, desc) == Success) {
73 keycodes = XGetAtomName (dpy, desc->names->keycodes);
74 if (!keycodes) {
75 g_warning("could not lookup keycode name");
76 } else {
77 trace_xkeymap_keycodes(keycodes);
78 }
79 }
80 XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
81 }
82
83 if (check_for_xwin(dpy)) {
84 trace_xkeymap_keymap("xwin");
85 *maplen = qemu_input_map_xorgxwin_to_qcode_len;
86 return qemu_input_map_xorgxwin_to_qcode;
87 } else if (check_for_xquartz(dpy)) {
88 trace_xkeymap_keymap("xquartz");
89 *maplen = qemu_input_map_xorgxquartz_to_qcode_len;
90 return qemu_input_map_xorgxquartz_to_qcode;
91 } else if ((keycodes && g_str_has_prefix(keycodes, "evdev")) ||
92 (XKeysymToKeycode(dpy, XK_Page_Up) == 0x70)) {
93 trace_xkeymap_keymap("evdev");
94 *maplen = qemu_input_map_xorgevdev_to_qcode_len;
95 return qemu_input_map_xorgevdev_to_qcode;
96 } else if ((keycodes && g_str_has_prefix(keycodes, "xfree86")) ||
97 (XKeysymToKeycode(dpy, XK_Page_Up) == 0x63)) {
98 trace_xkeymap_keymap("kbd");
99 *maplen = qemu_input_map_xorgkbd_to_qcode_len;
100 return qemu_input_map_xorgkbd_to_qcode;
101 } else {
102 trace_xkeymap_keymap("NULL");
103 g_warning("Unknown X11 keycode mapping '%s'.\n"
104 "Please report to qemu-devel@nongnu.org\n"
105 "including the following information:\n"
106 "\n"
107 " - Operating system\n"
108 " - X11 Server\n"
109 " - xprop -root\n"
110 " - xdpyinfo\n",
111 keycodes ? keycodes : "<null>");
112 return NULL;
113 }
114 }