| /* |
| * 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) |
| { |
| int ret; |
| FILE *f; |
| char * filename; |
| char line[1024]; |
| char keyname[64]; |
| int len; |
| |
| filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language); |
| trace_keymap_parse(filename); |
| f = filename ? fopen(filename, "r") : NULL; |
| g_free(filename); |
| if (!f) { |
| error_setg(errp, "could not read keymap file: '%s'", language); |
| 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; |
| } |
| |
| |
| kbd_layout_t *init_keyboard_layout(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(NULL, NULL); |
| if (parse_keyboard_layout(k, table, language, errp) < 0) { |
| g_hash_table_unref(k->hash); |
| g_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++) { |
| QKeyCode qcode = qemu_input_key_number_to_qcode |
| (keysym2code->keycodes[i]); |
| if (kbd && qkbd_state_key_get(kbd, qcode)) { |
| 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; |
| } |
