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matthewc |
38 |
/* |
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rdesktop: A Remote Desktop Protocol client. |
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User interface services - X keyboard mapping |
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Copyright (C) Matthew Chapman 1999-2001 |
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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 General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <X11/Xlib.h> |
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#include <X11/keysym.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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astrand |
66 |
#include <ctype.h> |
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matthewc |
39 |
#include <limits.h> |
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matthewc |
38 |
#include "rdesktop.h" |
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astrand |
66 |
#include "scancodes.h" |
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matthewc |
38 |
|
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#define KEYMAP_SIZE 4096 |
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#define KEYMAP_MASK (KEYMAP_SIZE - 1) |
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astrand |
66 |
#define KEYMAP_MAX_LINE_LENGTH 80 |
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matthewc |
38 |
|
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matthewc |
50 |
extern Display *display; |
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matthewc |
38 |
extern char keymapname[16]; |
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extern int keylayout; |
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astrand |
70 |
extern BOOL enable_compose; |
39 |
matthewc |
38 |
|
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astrand |
66 |
static key_translation keymap[KEYMAP_SIZE]; |
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astrand |
73 |
static int min_keycode; |
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astrand |
66 |
static uint16 remote_modifier_state = 0; |
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matthewc |
38 |
|
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astrand |
66 |
static void |
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add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
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{ |
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KeySym keysym; |
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keysym = XStringToKeysym(keyname); |
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if (keysym == NoSymbol) |
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{ |
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error("Bad keysym %s in keymap %s\n", keyname, mapname); |
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return; |
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} |
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|
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astrand |
84 |
DEBUG_KBD(("Adding translation, keysym=0x%x, scancode=0x%x, " |
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"modifiers=0x%x\n", (unsigned int) keysym, scancode, modifiers)); |
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astrand |
66 |
|
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keymap[keysym & KEYMAP_MASK].scancode = scancode; |
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keymap[keysym & KEYMAP_MASK].modifiers = modifiers; |
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return; |
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} |
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|
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astrand |
64 |
static BOOL |
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xkeymap_read(char *mapname) |
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matthewc |
38 |
{ |
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FILE *fp; |
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astrand |
66 |
char line[KEYMAP_MAX_LINE_LENGTH], path[PATH_MAX]; |
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unsigned int line_num = 0; |
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unsigned int line_length = 0; |
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matthewc |
38 |
char *keyname, *p; |
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astrand |
66 |
char *line_rest; |
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uint8 scancode; |
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uint16 modifiers; |
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matthewc |
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|
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astrand |
66 |
|
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matthewc |
38 |
strcpy(path, KEYMAP_PATH); |
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strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH)); |
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|
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fp = fopen(path, "r"); |
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if (fp == NULL) |
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{ |
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error("Failed to open keymap %s\n", path); |
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return False; |
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} |
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|
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astrand |
66 |
/* FIXME: More tolerant on white space */ |
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matthewc |
38 |
while (fgets(line, sizeof(line), fp) != NULL) |
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{ |
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astrand |
66 |
line_num++; |
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|
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/* Replace the \n with \0 */ |
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matthewc |
38 |
p = strchr(line, '\n'); |
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if (p != NULL) |
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*p = 0; |
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|
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astrand |
66 |
line_length = strlen(line); |
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/* Completely empty line */ |
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if (strspn(line, " \t\n\r\f\v") == line_length) |
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matthewc |
38 |
{ |
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astrand |
66 |
continue; |
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} |
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matthewc |
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|
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astrand |
66 |
/* Include */ |
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if (strncmp(line, "include ", 8) == 0) |
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matthewc |
38 |
{ |
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astrand |
64 |
if (!xkeymap_read(line + 8)) |
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matthewc |
38 |
return False; |
112 |
astrand |
66 |
continue; |
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matthewc |
38 |
} |
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astrand |
66 |
|
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/* map */ |
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if (strncmp(line, "map ", 4) == 0) |
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matthewc |
38 |
{ |
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astrand |
64 |
keylayout = strtol(line + 4, NULL, 16); |
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astrand |
84 |
DEBUG_KBD(("Keylayout 0x%x\n", keylayout)); |
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astrand |
66 |
continue; |
121 |
matthewc |
38 |
} |
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astrand |
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|
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astrand |
70 |
/* compose */ |
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if (strncmp(line, "enable_compose", 15) == 0) |
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{ |
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astrand |
84 |
DEBUG_KBD(("Enabling compose handling\n")); |
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astrand |
70 |
enable_compose = True; |
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continue; |
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} |
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|
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astrand |
66 |
/* Comment */ |
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if (line[0] == '#') |
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matthewc |
38 |
{ |
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astrand |
66 |
continue; |
135 |
matthewc |
38 |
} |
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astrand |
66 |
|
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/* Normal line */ |
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keyname = line; |
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p = strchr(line, ' '); |
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if (p == NULL) |
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{ |
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astrand |
82 |
error("Bad line %d in keymap %s\n", line_num, mapname); |
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astrand |
66 |
continue; |
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} |
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else |
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{ |
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*p = 0; |
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} |
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/* scancode */ |
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p++; |
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scancode = strtol(p, &line_rest, 16); |
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/* flags */ |
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/* FIXME: Should allow case-insensitive flag names. |
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Fix by using lex+yacc... */ |
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modifiers = 0; |
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if (strstr(line_rest, "altgr")) |
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{ |
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MASK_ADD_BITS(modifiers, MapAltGrMask); |
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} |
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if (strstr(line_rest, "shift")) |
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{ |
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MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
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} |
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if (strstr(line_rest, "numlock")) |
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{ |
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MASK_ADD_BITS(modifiers, MapNumLockMask); |
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} |
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|
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astrand |
69 |
if (strstr(line_rest, "localstate")) |
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{ |
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MASK_ADD_BITS(modifiers, MapLocalStateMask); |
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} |
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|
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astrand |
66 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
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|
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if (strstr(line_rest, "addupper")) |
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{ |
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/* Automatically add uppercase key, with same modifiers |
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plus shift */ |
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for (p = keyname; *p; p++) |
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*p = toupper(*p); |
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MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
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add_to_keymap(keyname, scancode, modifiers, mapname); |
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} |
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matthewc |
38 |
} |
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fclose(fp); |
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return True; |
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} |
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|
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astrand |
66 |
|
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/* Before connecting and creating UI */ |
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astrand |
64 |
void |
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astrand |
66 |
xkeymap_init1(void) |
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matthewc |
38 |
{ |
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astrand |
66 |
int i; |
201 |
matthewc |
38 |
|
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astrand |
66 |
/* Zeroing keymap */ |
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for (i = 0; i < KEYMAP_SIZE; i++) |
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{ |
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keymap[i].scancode = 0; |
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keymap[i].modifiers = 0; |
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} |
208 |
matthewc |
38 |
|
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if (strcmp(keymapname, "none")) |
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astrand |
66 |
{ |
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matthewc |
38 |
xkeymap_read(keymapname); |
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astrand |
66 |
} |
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|
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matthewc |
38 |
} |
215 |
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|
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astrand |
66 |
/* After connecting and creating UI */ |
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void |
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xkeymap_init2(void) |
219 |
matthewc |
38 |
{ |
220 |
astrand |
66 |
unsigned int max_keycode; |
221 |
astrand |
77 |
XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode); |
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astrand |
66 |
} |
223 |
matthewc |
38 |
|
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astrand |
66 |
|
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key_translation |
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astrand |
69 |
xkeymap_translate_key(KeySym keysym, unsigned int keycode, unsigned int state) |
227 |
astrand |
66 |
{ |
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key_translation tr = { 0, 0 }; |
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tr = keymap[keysym & KEYMAP_MASK]; |
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|
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astrand |
69 |
if (tr.modifiers & MapLocalStateMask) |
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{ |
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/* The modifiers to send for this key should be obtained |
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from the local state. Currently, only shift is implemented. */ |
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if (state & ShiftMask) |
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{ |
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tr.modifiers = MapLeftShiftMask; |
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} |
240 |
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} |
241 |
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|
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astrand |
66 |
if (tr.scancode != 0) |
243 |
matthewc |
50 |
{ |
244 |
astrand |
66 |
DEBUG_KBD |
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astrand |
84 |
(("Found key translation, scancode=0x%x, modifiers=0x%x\n", |
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tr.scancode, tr.modifiers)); |
247 |
astrand |
66 |
return tr; |
248 |
matthewc |
50 |
} |
249 |
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|
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astrand |
82 |
printf("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym)); |
251 |
astrand |
66 |
|
252 |
matthewc |
38 |
/* not in keymap, try to interpret the raw scancode */ |
253 |
|
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if ((keycode >= min_keycode) && (keycode <= 0x60)) |
254 |
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{ |
255 |
astrand |
66 |
tr.scancode = keycode - min_keycode; |
256 |
|
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printf("Sending guessed scancode 0x%x\n", tr.scancode); |
257 |
matthewc |
38 |
} |
258 |
astrand |
66 |
else |
259 |
|
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{ |
260 |
|
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printf("No good guess for keycode 0x%x found\n", keycode); |
261 |
|
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} |
262 |
matthewc |
38 |
|
263 |
astrand |
66 |
return tr; |
264 |
matthewc |
38 |
} |
265 |
|
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|
266 |
astrand |
64 |
uint16 |
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|
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xkeymap_translate_button(unsigned int button) |
268 |
matthewc |
38 |
{ |
269 |
|
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switch (button) |
270 |
|
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{ |
271 |
astrand |
64 |
case Button1: /* left */ |
272 |
matthewc |
38 |
return MOUSE_FLAG_BUTTON1; |
273 |
astrand |
64 |
case Button2: /* middle */ |
274 |
matthewc |
38 |
return MOUSE_FLAG_BUTTON3; |
275 |
astrand |
64 |
case Button3: /* right */ |
276 |
matthewc |
38 |
return MOUSE_FLAG_BUTTON2; |
277 |
jsorg71 |
67 |
case Button4: /* wheel up */ |
278 |
|
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return MOUSE_FLAG_BUTTON4; |
279 |
|
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case Button5: /* wheel down */ |
280 |
|
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return MOUSE_FLAG_BUTTON5; |
281 |
matthewc |
38 |
} |
282 |
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|
283 |
|
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return 0; |
284 |
|
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} |
285 |
astrand |
66 |
|
286 |
|
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char * |
287 |
|
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get_ksname(KeySym keysym) |
288 |
|
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{ |
289 |
|
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char *ksname = NULL; |
290 |
|
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|
291 |
|
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if (keysym == NoSymbol) |
292 |
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ksname = "NoSymbol"; |
293 |
|
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else if (!(ksname = XKeysymToString(keysym))) |
294 |
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ksname = "(no name)"; |
295 |
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|
296 |
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return ksname; |
297 |
|
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} |
298 |
|
|
|
299 |
|
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BOOL |
300 |
|
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inhibit_key(KeySym keysym) |
301 |
|
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{ |
302 |
|
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switch (keysym) |
303 |
|
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{ |
304 |
|
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case XK_Caps_Lock: |
305 |
|
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return True; |
306 |
|
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break; |
307 |
|
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case XK_Multi_key: |
308 |
|
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return True; |
309 |
|
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break; |
310 |
|
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default: |
311 |
|
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break; |
312 |
|
|
} |
313 |
|
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return False; |
314 |
|
|
} |
315 |
|
|
|
316 |
|
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void |
317 |
|
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ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
318 |
|
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{ |
319 |
|
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/* If this key is a modifier, do nothing */ |
320 |
|
|
switch (tr.scancode) |
321 |
|
|
{ |
322 |
|
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case SCANCODE_CHAR_LSHIFT: |
323 |
|
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case SCANCODE_CHAR_RSHIFT: |
324 |
|
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case SCANCODE_CHAR_LCTRL: |
325 |
|
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case SCANCODE_CHAR_RCTRL: |
326 |
|
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case SCANCODE_CHAR_LALT: |
327 |
|
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case SCANCODE_CHAR_RALT: |
328 |
|
|
case SCANCODE_CHAR_LWIN: |
329 |
|
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case SCANCODE_CHAR_RWIN: |
330 |
|
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case SCANCODE_CHAR_NUMLOCK: |
331 |
|
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return; |
332 |
|
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default: |
333 |
|
|
break; |
334 |
|
|
} |
335 |
|
|
|
336 |
|
|
/* Shift */ |
337 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
338 |
|
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!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
339 |
|
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{ |
340 |
|
|
/* The remote modifier state is not correct */ |
341 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)) |
342 |
|
|
{ |
343 |
|
|
/* Needs this modifier. Send down. */ |
344 |
astrand |
82 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
345 |
astrand |
66 |
} |
346 |
|
|
else |
347 |
|
|
{ |
348 |
|
|
/* Should not use this modifier. Send up. */ |
349 |
astrand |
82 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
350 |
astrand |
66 |
} |
351 |
|
|
} |
352 |
|
|
|
353 |
|
|
/* AltGr */ |
354 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
355 |
|
|
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
356 |
|
|
{ |
357 |
|
|
/* The remote modifier state is not correct */ |
358 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
359 |
|
|
{ |
360 |
|
|
/* Needs this modifier. Send down. */ |
361 |
astrand |
82 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT); |
362 |
astrand |
66 |
} |
363 |
|
|
else |
364 |
|
|
{ |
365 |
|
|
/* Should not use this modifier. Send up. */ |
366 |
astrand |
82 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
367 |
astrand |
66 |
} |
368 |
|
|
} |
369 |
|
|
|
370 |
|
|
/* NumLock */ |
371 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
372 |
|
|
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
373 |
|
|
{ |
374 |
|
|
/* The remote modifier state is not correct */ |
375 |
astrand |
84 |
DEBUG_KBD(("Remote NumLock state is incorrect. Toggling\n")); |
376 |
astrand |
66 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
377 |
|
|
{ |
378 |
|
|
/* Needs this modifier. Toggle */ |
379 |
astrand |
82 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_NUMLOCK); |
380 |
|
|
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_NUMLOCK); |
381 |
astrand |
66 |
} |
382 |
|
|
else |
383 |
|
|
{ |
384 |
|
|
/* Should not use this modifier. Toggle */ |
385 |
astrand |
82 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_NUMLOCK); |
386 |
|
|
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_NUMLOCK); |
387 |
astrand |
66 |
} |
388 |
|
|
} |
389 |
|
|
|
390 |
|
|
} |
391 |
|
|
|
392 |
|
|
|
393 |
|
|
static void |
394 |
|
|
update_modifier_state(uint16 modifiers, BOOL pressed) |
395 |
|
|
{ |
396 |
|
|
|
397 |
astrand |
84 |
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n", |
398 |
|
|
remote_modifier_state, pressed)); |
399 |
astrand |
66 |
switch (modifiers) |
400 |
|
|
{ |
401 |
|
|
case SCANCODE_CHAR_LSHIFT: |
402 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
403 |
astrand |
66 |
break; |
404 |
|
|
case SCANCODE_CHAR_RSHIFT: |
405 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed); |
406 |
astrand |
66 |
break; |
407 |
|
|
case SCANCODE_CHAR_LCTRL: |
408 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed); |
409 |
astrand |
66 |
break; |
410 |
|
|
case SCANCODE_CHAR_RCTRL: |
411 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed); |
412 |
astrand |
66 |
break; |
413 |
|
|
case SCANCODE_CHAR_LALT: |
414 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed); |
415 |
astrand |
66 |
break; |
416 |
|
|
case SCANCODE_CHAR_RALT: |
417 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed); |
418 |
astrand |
66 |
break; |
419 |
|
|
case SCANCODE_CHAR_LWIN: |
420 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed); |
421 |
astrand |
66 |
break; |
422 |
|
|
case SCANCODE_CHAR_RWIN: |
423 |
astrand |
82 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed); |
424 |
astrand |
66 |
break; |
425 |
|
|
case SCANCODE_CHAR_NUMLOCK: |
426 |
|
|
/* KeyReleases for NumLocks are sent immediately. Toggle the |
427 |
|
|
modifier state only on Keypress */ |
428 |
|
|
if (pressed) |
429 |
|
|
{ |
430 |
|
|
BOOL newNumLockState; |
431 |
|
|
newNumLockState = |
432 |
|
|
(MASK_HAS_BITS |
433 |
astrand |
82 |
(remote_modifier_state, MapNumLockMask) == False); |
434 |
astrand |
66 |
MASK_CHANGE_BIT(remote_modifier_state, |
435 |
astrand |
82 |
MapNumLockMask, newNumLockState); |
436 |
astrand |
66 |
} |
437 |
|
|
break; |
438 |
|
|
} |
439 |
astrand |
84 |
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state)); |
440 |
astrand |
66 |
|
441 |
|
|
} |
442 |
|
|
|
443 |
|
|
/* Send keyboard input */ |
444 |
|
|
void |
445 |
|
|
rdp_send_scancode(uint32 time, uint16 flags, uint16 scancode) |
446 |
|
|
{ |
447 |
|
|
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
448 |
|
|
|
449 |
|
|
if (scancode & SCANCODE_EXTENDED) |
450 |
|
|
{ |
451 |
astrand |
84 |
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n", |
452 |
|
|
scancode & ~SCANCODE_EXTENDED, flags)); |
453 |
astrand |
66 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
454 |
|
|
scancode & ~SCANCODE_EXTENDED, 0); |
455 |
|
|
} |
456 |
|
|
else |
457 |
|
|
{ |
458 |
astrand |
85 |
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags)); |
459 |
|
|
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
460 |
astrand |
66 |
} |
461 |
|
|
} |