| /* | |
| * QEMU keysym to keycode conversion using rdesktop keymaps | |
| * | |
| * Copyright (c) 2004 Johannes Schindelin | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| * of this software and associated documentation files (the "Software"), to deal | |
| * in the Software without restriction, including without limitation the rights | |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| * copies of the Software, and to permit persons to whom the Software is | |
| * furnished to do so, subject to the following conditions: | |
| * | |
| * The above copyright notice and this permission notice shall be included in | |
| * all copies or substantial portions of the Software. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| * THE SOFTWARE. | |
| */ | |
| #include "qemu/osdep.h" | |
| #include "qemu/datadir.h" | |
| #include "keymaps.h" | |
| #include "trace.h" | |
| #include "qemu/ctype.h" | |
| #include "qemu/error-report.h" | |
| #include "qapi/error.h" | |
| #include "ui/input.h" | |
| struct keysym2code { | |
| uint32_t count; | |
| uint16_t keycodes[4]; | |
| }; | |
| struct kbd_layout_t { | |
| GHashTable *hash; | |
| }; | |
| static int get_keysym(const name2keysym_t *table, | |
| const char *name) | |
| { | |
| const name2keysym_t *p; | |
| for(p = table; p->name != NULL; p++) { | |
| if (!strcmp(p->name, name)) { | |
| return p->keysym; | |
| } | |
| } | |
| if (name[0] == 'U' && strlen(name) == 5) { /* try unicode Uxxxx */ | |
| char *end; | |
| int ret = (int)strtoul(name + 1, &end, 16); | |
| if (*end == '\0' && ret > 0) { | |
| return ret; | |
| } | |
| } | |
| return 0; | |
| } | |
| static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k) | |
| { | |
| struct keysym2code *keysym2code; | |
| keysym2code = g_hash_table_lookup(k->hash, GINT_TO_POINTER(keysym)); | |
| if (keysym2code) { | |
| if (keysym2code->count < ARRAY_SIZE(keysym2code->keycodes)) { | |
| keysym2code->keycodes[keysym2code->count++] = keycode; | |
| } else { | |
| warn_report("more than %zd keycodes for keysym %d", | |
| ARRAY_SIZE(keysym2code->keycodes), keysym); | |
| } | |
| return; | |
| } | |
| keysym2code = g_new0(struct keysym2code, 1); | |
| keysym2code->keycodes[0] = keycode; | |
| keysym2code->count = 1; | |
| g_hash_table_replace(k->hash, GINT_TO_POINTER(keysym), keysym2code); | |
| trace_keymap_add(keysym, keycode, line); | |
| } | |
| static int parse_keyboard_layout(kbd_layout_t *k, | |
| const name2keysym_t *table, | |
| const char *language, Error **errp) | |
| { | |
| g_autofree char *filename = NULL; | |
| int ret; | |
| FILE *f; | |
| char line[1024]; | |
| char keyname[64]; | |
| int len; | |
| filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language); | |
| if (!filename) { | |
| error_setg(errp, "could not find keymap file for language '%s'", | |
| language); | |
| return -1; | |
| } | |
| trace_keymap_parse(filename); | |
| f = fopen(filename, "r"); | |
| if (!f) { | |
| error_setg_file_open(errp, errno, filename); | |
| return -1; | |
| } | |
| for(;;) { | |
| if (fgets(line, 1024, f) == NULL) { | |
| break; | |
| } | |
| len = strlen(line); | |
| if (len > 0 && line[len - 1] == '\n') { | |
| line[len - 1] = '\0'; | |
| } | |
| if (line[0] == '#') { | |
| continue; | |
| } | |
| if (!strncmp(line, "map ", 4)) { | |
| continue; | |
| } | |
| if (!strncmp(line, "include ", 8)) { | |
| error_setg(errp, "keymap include files are not supported any more"); | |
| ret = -1; | |
| goto out; | |
| } else { | |
| int offset = 0; | |
| while (line[offset] != 0 && | |
| line[offset] != ' ' && | |
| offset < sizeof(keyname) - 1) { | |
| keyname[offset] = line[offset]; | |
| offset++; | |
| } | |
| keyname[offset] = 0; | |
| if (strlen(keyname)) { | |
| int keysym; | |
| keysym = get_keysym(table, keyname); | |
| if (keysym == 0) { | |
| /* warn_report("unknown keysym %s", line);*/ | |
| } else { | |
| const char *rest = line + offset + 1; | |
| int keycode = strtol(rest, NULL, 0); | |
| if (strstr(rest, "shift")) { | |
| keycode |= SCANCODE_SHIFT; | |
| } | |
| if (strstr(rest, "altgr")) { | |
| keycode |= SCANCODE_ALTGR; | |
| } | |
| if (strstr(rest, "ctrl")) { | |
| keycode |= SCANCODE_CTRL; | |
| } | |
| add_keysym(line, keysym, keycode, k); | |
| if (strstr(rest, "addupper")) { | |
| char *c; | |
| for (c = keyname; *c; c++) { | |
| *c = qemu_toupper(*c); | |
| } | |
| keysym = get_keysym(table, keyname); | |
| if (keysym) { | |
| add_keysym(line, keysym, | |
| keycode | SCANCODE_SHIFT, k); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| ret = 0; | |
| out: | |
| fclose(f); | |
| return ret; | |
| } | |
| void kbd_layout_free(kbd_layout_t *k) | |
| { | |
| if (!k) { | |
| return; | |
| } | |
| g_hash_table_unref(k->hash); | |
| g_free(k); | |
| } | |
| kbd_layout_t *kbd_layout_new(const name2keysym_t *table, | |
| const char *language, Error **errp) | |
| { | |
| kbd_layout_t *k; | |
| k = g_new0(kbd_layout_t, 1); | |
| k->hash = g_hash_table_new_full(NULL, NULL, NULL, g_free); | |
| if (parse_keyboard_layout(k, table, language, errp) < 0) { | |
| kbd_layout_free(k); | |
| return NULL; | |
| } | |
| return k; | |
| } | |
| int keysym2scancode(kbd_layout_t *k, int keysym, | |
| QKbdState *kbd, bool down) | |
| { | |
| static const uint32_t mask = | |
| SCANCODE_SHIFT | SCANCODE_ALTGR | SCANCODE_CTRL; | |
| uint32_t mods, i; | |
| struct keysym2code *keysym2code; | |
| #ifdef XK_ISO_Left_Tab | |
| if (keysym == XK_ISO_Left_Tab) { | |
| keysym = XK_Tab; | |
| } | |
| #endif | |
| keysym2code = g_hash_table_lookup(k->hash, GINT_TO_POINTER(keysym)); | |
| if (!keysym2code) { | |
| trace_keymap_unmapped(keysym); | |
| warn_report("no scancode found for keysym %d", keysym); | |
| return 0; | |
| } | |
| if (keysym2code->count == 1) { | |
| return keysym2code->keycodes[0]; | |
| } | |
| /* We have multiple keysym -> keycode mappings. */ | |
| if (down) { | |
| /* | |
| * On keydown: Check whenever we find one mapping where the | |
| * modifier state of the mapping matches the current user | |
| * interface modifier state. If so, prefer that one. | |
| */ | |
| mods = 0; | |
| if (kbd && qkbd_state_modifier_get(kbd, QKBD_MOD_SHIFT)) { | |
| mods |= SCANCODE_SHIFT; | |
| } | |
| if (kbd && qkbd_state_modifier_get(kbd, QKBD_MOD_ALTGR)) { | |
| mods |= SCANCODE_ALTGR; | |
| } | |
| if (kbd && qkbd_state_modifier_get(kbd, QKBD_MOD_CTRL)) { | |
| mods |= SCANCODE_CTRL; | |
| } | |
| for (i = 0; i < keysym2code->count; i++) { | |
| if ((keysym2code->keycodes[i] & mask) == mods) { | |
| return keysym2code->keycodes[i]; | |
| } | |
| } | |
| } else { | |
| /* | |
| * On keyup: Try find a key which is actually down. | |
| */ | |
| for (i = 0; i < keysym2code->count; i++) { | |
| unsigned int lnx = qemu_input_key_number_to_linux | |
| (keysym2code->keycodes[i]); | |
| if (kbd && qkbd_state_key_get(kbd, lnx)) { | |
| return keysym2code->keycodes[i]; | |
| } | |
| } | |
| } | |
| return keysym2code->keycodes[0]; | |
| } | |
| int keycode_is_keypad(kbd_layout_t *k, int keycode) | |
| { | |
| if (keycode >= 0x47 && keycode <= 0x53) { | |
| return true; | |
| } | |
| return false; | |
| } | |
| int keysym_is_numlock(kbd_layout_t *k, int keysym) | |
| { | |
| switch (keysym) { | |
| case 0xffb0 ... 0xffb9: /* KP_0 .. KP_9 */ | |
| case 0xffac: /* KP_Separator */ | |
| case 0xffae: /* KP_Decimal */ | |
| return true; | |
| } | |
| return false; | |
| } |