1e70de679d
The X11 code currently detects the keymap by looking for the keycode name property. Unfortunately due to the way Xwayland handles keyboards, this property gets unset almost immediately after the first application starts using Xwayland resulting in ** (qemu-system-x86_64:19644): WARNING **: Unknown X11 keycode mapping '(unnamed)'. Please report to qemu-devel@nongnu.org including the following information: - Operating system - X11 Server - xprop -root - xdpyinfo Fortunately people will only see this problem if they built QEMU with GTK2, or have told GTK3 to prefer X11 by setting the GDK_BACKEND=x11 env variable. To workaround the problem, we add a heuristic that looks at what scancode the XK_Page_Up keysymbol maps to, to determine if we've likely got the X11 kbd or evdev driver. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20180313104235.20725-1-berrange@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*
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* QEMU X11 keymaps
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*
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* Copyright (C) 2009-2010 Daniel P. Berrange <dan@berrange.com>
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* Copyright (C) 2017 Red Hat, Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "qemu/osdep.h"
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#include "x_keymap.h"
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#include "trace.h"
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#include "qemu/notify.h"
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#include "ui/input.h"
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#include <X11/XKBlib.h>
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#include <X11/Xutil.h>
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static gboolean check_for_xwin(Display *dpy)
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{
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const char *vendor = ServerVendor(dpy);
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trace_xkeymap_vendor(vendor);
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if (strstr(vendor, "Cygwin/X")) {
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return TRUE;
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}
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return FALSE;
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}
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static gboolean check_for_xquartz(Display *dpy)
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{
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int nextensions;
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int i;
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gboolean match = FALSE;
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char **extensions = XListExtensions(dpy, &nextensions);
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for (i = 0 ; extensions != NULL && i < nextensions ; i++) {
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trace_xkeymap_extension(extensions[i]);
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if (strcmp(extensions[i], "Apple-WM") == 0 ||
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strcmp(extensions[i], "Apple-DRI") == 0) {
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match = TRUE;
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}
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}
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if (extensions) {
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XFreeExtensionList(extensions);
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}
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return match;
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}
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const guint16 *qemu_xkeymap_mapping_table(Display *dpy, size_t *maplen)
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{
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XkbDescPtr desc;
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const gchar *keycodes = NULL;
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/* There is no easy way to determine what X11 server
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* and platform & keyboard driver is in use. Thus we
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* do best guess heuristics.
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*
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* This will need more work for people with other
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* X servers..... patches welcomed.
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*/
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desc = XkbGetMap(dpy,
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XkbGBN_AllComponentsMask,
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XkbUseCoreKbd);
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if (desc) {
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if (XkbGetNames(dpy, XkbKeycodesNameMask, desc) == Success) {
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keycodes = XGetAtomName (dpy, desc->names->keycodes);
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if (!keycodes) {
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g_warning("could not lookup keycode name");
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} else {
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trace_xkeymap_keycodes(keycodes);
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}
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}
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XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
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}
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if (check_for_xwin(dpy)) {
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trace_xkeymap_keymap("xwin");
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*maplen = qemu_input_map_xorgxwin_to_qcode_len;
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return qemu_input_map_xorgxwin_to_qcode;
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} else if (check_for_xquartz(dpy)) {
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trace_xkeymap_keymap("xquartz");
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*maplen = qemu_input_map_xorgxquartz_to_qcode_len;
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return qemu_input_map_xorgxquartz_to_qcode;
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} else if ((keycodes && g_str_has_prefix(keycodes, "evdev")) ||
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(XKeysymToKeycode(dpy, XK_Page_Up) == 0x70)) {
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trace_xkeymap_keymap("evdev");
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*maplen = qemu_input_map_xorgevdev_to_qcode_len;
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return qemu_input_map_xorgevdev_to_qcode;
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} else if ((keycodes && g_str_has_prefix(keycodes, "xfree86")) ||
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(XKeysymToKeycode(dpy, XK_Page_Up) == 0x63)) {
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trace_xkeymap_keymap("kbd");
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*maplen = qemu_input_map_xorgkbd_to_qcode_len;
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return qemu_input_map_xorgkbd_to_qcode;
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} else {
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trace_xkeymap_keymap("NULL");
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g_warning("Unknown X11 keycode mapping '%s'.\n"
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"Please report to qemu-devel@nongnu.org\n"
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"including the following information:\n"
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"\n"
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" - Operating system\n"
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" - X11 Server\n"
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" - xprop -root\n"
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" - xdpyinfo\n",
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keycodes ? keycodes : "<null>");
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return NULL;
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}
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}
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