/* ______ ___ ___ * /\ _ \ /\_ \ /\_ \ * \ \ \L\ \\//\ \ \//\ \ __ __ _ __ ___ * \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\ * \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \ * \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/ * \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/ * /\____/ * \_/__/ * * X keyboard driver. * * By Elias Pschernig. * * Modified for the new keyboard API by Peter Wang. * * See readme.txt for copyright information. */ #define ALLEGRO_NO_COMPATIBILITY #include #include #include #include #include #include #include #include #include #include #include "allegro.h" #include "allegro/internal/aintern.h" #include "allegro/internal/aintern_events.h" #include "allegro/internal/aintern_keyboard.h" #include "xwin.h" /*----------------------------------------------------------------------*/ static void handle_key_press(int mycode, int unichar, unsigned int modifiers); static void handle_key_release(int mycode); static int _key_shifts; /*----------------------------------------------------------------------*/ #define PREFIX_I "al-xkey INFO: " #define PREFIX_W "al-xkey WARNING: " #define PREFIX_E "al-xkey ERROR: " #ifdef ALLEGRO_USE_XIM static XIM xim = NULL; static XIC xic = NULL; #endif static XModifierKeymap *xmodmap = NULL; static int xkeyboard_installed = 0; static int used[AL_KEY_MAX]; static int sym_per_key; static int min_keycode, max_keycode; static KeySym *keysyms = NULL; static int main_pid; /* The pid to kill with ctrl-alt-del. */ static int pause_key = 0; /* Allegro's special pause key state. */ /* This table can be ammended to provide more reasonable defaults for * mappings other than US/UK. They are used to map X11 KeySyms as found in * X11/keysym.h to Allegro's AL_KEY_* codes. This will only work well on US/UK * keyboards since Allegro simply doesn't have AL_KEY_* codes for non US/UK * keyboards. So with other mappings, the unmapped keys will be distributed * arbitrarily to the remaining AL_KEY_* codes. * * Double mappings should be avoided, else they can lead to different keys * producing the same AL_KEY_* code on some mappings. * * In cases where there is no other way to detect a key, since we have no * ASCII applied to it, like AL_KEY_LEFT or AL_KEY_PAUSE, multiple mappings should * be ok though. This table will never be able to be 100% perfect, so just * try to make it work for as many as possible, using additional hacks in * some cases. There is also still the possibility to override keys with * the [xkeyboard] config section, so users can always re-map keys. (E.g. * to play an Allegro game which hard-coded AL_KEY_Y and AL_KEY_X for left and * right.) */ static struct { KeySym keysym; int allegro_key; } translation_table[] = { {XK_a, AL_KEY_A}, {XK_b, AL_KEY_B}, {XK_c, AL_KEY_C}, {XK_d, AL_KEY_D}, {XK_e, AL_KEY_E}, {XK_f, AL_KEY_F}, {XK_g, AL_KEY_G}, {XK_h, AL_KEY_H}, {XK_i, AL_KEY_I}, {XK_j, AL_KEY_J}, {XK_k, AL_KEY_K}, {XK_l, AL_KEY_L}, {XK_m, AL_KEY_M}, {XK_n, AL_KEY_N}, {XK_o, AL_KEY_O}, {XK_p, AL_KEY_P}, {XK_q, AL_KEY_Q}, {XK_r, AL_KEY_R}, {XK_s, AL_KEY_S}, {XK_t, AL_KEY_T}, {XK_u, AL_KEY_U}, {XK_v, AL_KEY_V}, {XK_w, AL_KEY_W}, {XK_x, AL_KEY_X}, {XK_y, AL_KEY_Y}, {XK_z, AL_KEY_Z}, {XK_0, AL_KEY_0}, {XK_1, AL_KEY_1}, {XK_2, AL_KEY_2}, {XK_3, AL_KEY_3}, {XK_4, AL_KEY_4}, {XK_5, AL_KEY_5}, {XK_6, AL_KEY_6}, {XK_7, AL_KEY_7}, {XK_8, AL_KEY_8}, {XK_9, AL_KEY_9}, /* Double mappings for numeric keyboard. * If an X server actually uses both at the same time, Allegro will * detect them as the same. But normally, an X server just reports it as * either of them, and therefore we always get the keys as AL_KEY_PAD_*. */ {XK_KP_0, AL_KEY_PAD_0}, {XK_KP_Insert, AL_KEY_PAD_0}, {XK_KP_1, AL_KEY_PAD_1}, {XK_KP_End, AL_KEY_PAD_1}, {XK_KP_2, AL_KEY_PAD_2}, {XK_KP_Down, AL_KEY_PAD_2}, {XK_KP_3, AL_KEY_PAD_3}, {XK_KP_Page_Down, AL_KEY_PAD_3}, {XK_KP_4, AL_KEY_PAD_4}, {XK_KP_Left, AL_KEY_PAD_4}, {XK_KP_5, AL_KEY_PAD_5}, {XK_KP_Begin, AL_KEY_PAD_5}, {XK_KP_6, AL_KEY_PAD_6}, {XK_KP_Right, AL_KEY_PAD_6}, {XK_KP_7, AL_KEY_PAD_7}, {XK_KP_Home, AL_KEY_PAD_7}, {XK_KP_8, AL_KEY_PAD_8}, {XK_KP_Up, AL_KEY_PAD_8}, {XK_KP_9, AL_KEY_PAD_9}, {XK_KP_Page_Up, AL_KEY_PAD_9}, {XK_KP_Delete, AL_KEY_PAD_DELETE}, {XK_KP_Decimal, AL_KEY_PAD_DELETE}, /* Double mapping! * Same as above - but normally, the X server just reports one or the * other for the Pause key, and the other is not reported for any key. */ {XK_Pause, AL_KEY_PAUSE}, {XK_Break, AL_KEY_PAUSE}, {XK_F1, AL_KEY_F1}, {XK_F2, AL_KEY_F2}, {XK_F3, AL_KEY_F3}, {XK_F4, AL_KEY_F4}, {XK_F5, AL_KEY_F5}, {XK_F6, AL_KEY_F6}, {XK_F7, AL_KEY_F7}, {XK_F8, AL_KEY_F8}, {XK_F9, AL_KEY_F9}, {XK_F10, AL_KEY_F10}, {XK_F11, AL_KEY_F11}, {XK_F12, AL_KEY_F12}, {XK_Escape, AL_KEY_ESCAPE}, {XK_grave, AL_KEY_TILDE}, /* US left of 1 */ {XK_minus, AL_KEY_MINUS}, /* US right of 0 */ {XK_equal, AL_KEY_EQUALS}, /* US 2 right of 0 */ {XK_BackSpace, AL_KEY_BACKSPACE}, {XK_Tab, AL_KEY_TAB}, {XK_bracketleft, AL_KEY_OPENBRACE}, /* US right of P */ {XK_bracketright, AL_KEY_CLOSEBRACE}, /* US 2 right of P */ {XK_Return, AL_KEY_ENTER}, {XK_semicolon, AL_KEY_SEMICOLON}, /* US right of L */ {XK_apostrophe, AL_KEY_QUOTE}, /* US 2 right of L */ {XK_backslash, AL_KEY_BACKSLASH}, /* US 3 right of L */ {XK_less, AL_KEY_BACKSLASH2}, /* US left of Y */ {XK_comma, AL_KEY_COMMA}, /* US right of M */ {XK_period, AL_KEY_FULLSTOP}, /* US 2 right of M */ {XK_slash, AL_KEY_SLASH}, /* US 3 right of M */ {XK_space, AL_KEY_SPACE}, {XK_Insert, AL_KEY_INSERT}, {XK_Delete, AL_KEY_DELETE}, {XK_Home, AL_KEY_HOME}, {XK_End, AL_KEY_END}, {XK_Page_Up, AL_KEY_PGUP}, {XK_Page_Down, AL_KEY_PGDN}, {XK_Left, AL_KEY_LEFT}, {XK_Right, AL_KEY_RIGHT}, {XK_Up, AL_KEY_UP}, {XK_Down, AL_KEY_DOWN}, {XK_KP_Divide, AL_KEY_PAD_SLASH}, {XK_KP_Multiply, AL_KEY_PAD_ASTERISK}, {XK_KP_Subtract, AL_KEY_PAD_MINUS}, {XK_KP_Add, AL_KEY_PAD_PLUS}, {XK_KP_Enter, AL_KEY_PAD_ENTER}, {XK_Print, AL_KEY_PRINTSCREEN}, //{, AL_KEY_ABNT_C1}, //{, AL_KEY_YEN}, //{, AL_KEY_KANA}, //{, AL_KEY_CONVERT}, //{, AL_KEY_NOCONVERT}, //{, AL_KEY_AT}, //{, AL_KEY_CIRCUMFLEX}, //{, AL_KEY_COLON2}, //{, AL_KEY_KANJI}, {XK_KP_Equal, AL_KEY_EQUALS_PAD}, /* MacOS X */ //{, AL_KEY_BACKQUOTE}, /* MacOS X */ //{, AL_KEY_SEMICOLON}, /* MacOS X */ //{, AL_KEY_COMMAND}, /* MacOS X */ {XK_Shift_L, AL_KEY_LSHIFT}, {XK_Shift_R, AL_KEY_RSHIFT}, {XK_Control_L, AL_KEY_LCTRL}, {XK_Control_R, AL_KEY_RCTRL}, {XK_Alt_L, AL_KEY_ALT}, /* Double mappings. This is a bit of a problem, since you can configure * X11 differently to what report for those keys. */ {XK_Alt_R, AL_KEY_ALTGR}, {XK_ISO_Level3_Shift, AL_KEY_ALTGR}, {XK_Meta_L, AL_KEY_LWIN}, {XK_Super_L, AL_KEY_LWIN}, {XK_Meta_R, AL_KEY_RWIN}, {XK_Super_R, AL_KEY_RWIN}, {XK_Menu, AL_KEY_MENU}, {XK_Scroll_Lock, AL_KEY_SCROLLLOCK}, {XK_Num_Lock, AL_KEY_NUMLOCK}, {XK_Caps_Lock, AL_KEY_CAPSLOCK} }; /* Table of: Allegro's modifier flag, associated X11 flag, toggle method. */ static int modifier_flags[8][3] = { {AL_KEYMOD_SHIFT, ShiftMask, 0}, {AL_KEYMOD_CAPSLOCK, LockMask, 1}, {AL_KEYMOD_CTRL, ControlMask, 0}, {AL_KEYMOD_ALT, Mod1Mask, 0}, {AL_KEYMOD_NUMLOCK, Mod2Mask, 1}, {AL_KEYMOD_SCROLLLOCK, Mod3Mask, 1}, {AL_KEYMOD_LWIN | AL_KEYMOD_RWIN, Mod4Mask, 0}, /* Should we use only one? */ {AL_KEYMOD_MENU, Mod5Mask, 0} /* AltGr */ }; /* Table of key names. */ static char AL_CONST *key_names[1 + AL_KEY_MAX]; /* update_shifts * Update Allegro's key_shifts variable, directly from the corresponding * X11 modifiers state. */ static void update_shifts(XKeyEvent *event) { int mask = 0; int i; for (i = 0; i < 8; i++) { int j; /* This is the state of the modifiers just before the key * press/release. */ if (event->state & modifier_flags[i][1]) mask |= modifier_flags[i][0]; /* In case a modifier key itself was pressed, we now need to update * the above state for Allegro, which wants the state after the * press, not before as reported by X. */ for (j = 0; j < xmodmap->max_keypermod; j++) { if (event->keycode && event->keycode == xmodmap->modifiermap[i * xmodmap->max_keypermod + j]) { if (event->type == KeyPress) { /* Modifier key pressed - toggle or set flag. */ if (modifier_flags[i][2]) mask ^= modifier_flags[i][0]; else mask |= modifier_flags[i][0]; } else if (event->type == KeyRelease) { /* Modifier key of non-toggle key released - remove flag. */ if (!modifier_flags[i][2]) mask &= ~modifier_flags[i][0]; } } } } _key_shifts = mask; } /* dga2_update_shifts * DGA2 doesn't seem to have a reliable state field. Therefore Allegro must * take care of modifier keys itself. */ static void dga2_update_shifts(XKeyEvent *event) { int i, j; for (i = 0; i < 8; i++) { for (j = 0; j < xmodmap->max_keypermod; j++) { if (event->keycode && event->keycode == xmodmap->modifiermap[i * xmodmap->max_keypermod + j]) { if (event->type == KeyPress) { if (modifier_flags[i][2]) _key_shifts ^= modifier_flags[i][0]; else _key_shifts |= modifier_flags[i][0]; } else if (event->type == KeyRelease) { if (!modifier_flags[i][2]) _key_shifts &= ~modifier_flags[i][0]; } } } /* Hack: DGA keys seem to get reported wrong otherwise. */ if (_key_shifts & modifier_flags[i][0]) event->state |= modifier_flags[i][1]; } } /* find_unknown_key_assignment * In some cases, X11 doesn't report any KeySym for a key - so the earliest * time we can map it to an Allegro key is when it is first pressed. */ static int find_unknown_key_assignment(int i) { int j; for (j = 1; j < AL_KEY_MAX; j++) { if (!used[j]) { AL_CONST char *str; _xwin.keycode_to_scancode[i] = j; str = XKeysymToString(keysyms[sym_per_key * (i - min_keycode)]); if (str) key_names[j] = str; else { key_names[j] = _al_keyboard_common_names[j]; } used[j] = 1; break; } } if (j == AL_KEY_MAX) { TRACE (PREFIX_E "You have more keys reported by X than Allegro's " "maximum of %i keys. Please send a bug report.\n", AL_KEY_MAX); _xwin.keycode_to_scancode[i] = 0; } TRACE(PREFIX_I "Key %i missing:", i); for (j = 0; j < sym_per_key; j++) { char *sym_str = XKeysymToString(keysyms[sym_per_key * (i - min_keycode) + j]); TRACE(" %s", sym_str ? sym_str : "NULL"); } TRACE(" - assigned to %i.\n", _xwin.keycode_to_scancode[i]); return _xwin.keycode_to_scancode[i]; } /* _al_xwin_keyboard_handler: * Keyboard "interrupt" handler. */ void _al_xwin_keyboard_handler(XKeyEvent *event, bool dga2_hack) { int keycode; if (!xkeyboard_installed) return; keycode = _xwin.keycode_to_scancode[event->keycode]; if (keycode == -1) keycode = find_unknown_key_assignment(event->keycode); if (dga2_hack) dga2_update_shifts(event); else update_shifts(event); /* Special case the pause key. */ if (keycode == AL_KEY_PAUSE) { /* Allegro ignore's releasing of the pause key. */ if (event->type == KeyRelease) return; if (pause_key) { event->type = KeyRelease; pause_key = 0; } else { pause_key = 1; } } if (event->type == KeyPress) { /* Key pressed. */ int len; char buffer[16]; char buffer2[16]; int unicode = 0, r = 0; #if defined (ALLEGRO_USE_XIM) && defined(X_HAVE_UTF8_STRING) if (xic) { len = Xutf8LookupString(xic, event, buffer, sizeof buffer, NULL, NULL); } else #endif { /* XLookupString is supposed to only use ASCII. */ len = XLookupString(event, buffer, sizeof buffer, NULL, NULL); } buffer[len] = '\0'; uconvert(buffer, U_UTF8, buffer2, U_UNICODE, sizeof buffer2); unicode = *(unsigned short *)buffer2; #ifdef ALLEGRO_USE_XIM r = XFilterEvent((XEvent *)event, _xwin.window); #endif if (keycode || unicode) { /* If we have a keycode, we want it to go to Allegro immediately, so the * key[] array is updated, and the user callbacks are called. OTOH, a key * should not be added to the keyboard buffer (parameter -1) if it was * filtered out as a compose key, or if it is a modifier key. */ if (r || keycode >= AL_KEY_MODIFIERS) unicode = -1; else { /* Historically, Allegro expects to get only the scancode when Alt is * held down. */ if (_key_shifts & AL_KEYMOD_ALT) unicode = 0; } handle_key_press(keycode, unicode, _key_shifts); } } else { /* Key release. */ handle_key_release(keycode); } } /* _al_xwin_keyboard_focus_handler: * Handles switching of X keyboard focus. */ void _al_xwin_keyboard_focus_handler(XFocusChangeEvent *event) { /* TODO */ #if 0 /* Simulate release of all keys on focus out. */ if (event->type == FocusOut) { int i; for (i = 0; i < AL_KEY_MAX; i++) { if (key[i]) handle_key_release(i); } } #endif } /* find_allegro_key * Search the translation table for the Allegro key corresponding to the * given KeySym. */ static int find_allegro_key(KeySym sym) { int i; int n = sizeof translation_table / sizeof *translation_table; for (i = 0; i < n; i++) { if (translation_table[i].keysym == sym) return translation_table[i].allegro_key; } return 0; } /* scancode_to_name: * Converts the given scancode to a description of the key. */ static AL_CONST char *x_scancode_to_name(int scancode) { ASSERT (scancode >= 0 && scancode < AL_KEY_MAX); return key_names[scancode]; } /* al_xwin_get_keyboard_mapping: * Generate a mapping from X11 keycodes to Allegro AL_KEY_* codes. We have * two goals: Every keypress should be mapped to a distinct Allegro AL_KEY_* * code. And we want the AL_KEY_* codes to match the pressed * key to some extent. To do the latter, the X11 KeySyms produced by a key * are examined. If a match is found in the table above, the mapping is * added to the mapping table. If no known KeySym is found for a key (or * the same KeySym is found for more keys) - the remaining keys are * distributed arbitrarily to the remaining AL_KEY_* codes. * * In a future version, this could be simplified by mapping *all* the X11 * KeySyms to AL_KEY_* codes. */ static void private_get_keyboard_mapping(void) { int i; int count; int missing = 0; memset(used, 0, sizeof used); memset(_xwin.keycode_to_scancode, 0, sizeof _xwin.keycode_to_scancode); XDisplayKeycodes(_xwin.display, &min_keycode, &max_keycode); count = 1 + max_keycode - min_keycode; if (keysyms) { XFree(keysyms); } keysyms = XGetKeyboardMapping(_xwin.display, min_keycode, count, &sym_per_key); TRACE (PREFIX_I "%i keys, %i symbols per key.\n", count, sym_per_key); missing = 0; for (i = min_keycode; i <= max_keycode; i++) { KeySym sym = keysyms[sym_per_key * (i - min_keycode)]; KeySym sym2 = keysyms[sym_per_key * (i - min_keycode) + 1]; char *sym_str, *sym2_str; int allegro_key = 0; sym_str = XKeysymToString(sym); sym2_str = XKeysymToString(sym2); TRACE (PREFIX_I "key [%i: %s %s]", i, sym_str ? sym_str : "NULL", sym2_str ? sym2_str : "NULL"); /* Hack for French keyboards, to correctly map AL_KEY_0 to AL_KEY_9. */ if (sym2 >= XK_0 && sym2 <= XK_9) { allegro_key = find_allegro_key(sym2); } if (!allegro_key) { if (sym != NoSymbol) { allegro_key = find_allegro_key(sym); if (allegro_key == 0) { missing++; TRACE (" defering.\n"); } } else { /* No KeySym for this key - ignore it. */ _xwin.keycode_to_scancode[i] = -1; TRACE (" not assigned.\n"); } } if (allegro_key) { if (used[allegro_key]) { TRACE(" *double*"); } _xwin.keycode_to_scancode[i] = allegro_key; key_names[allegro_key] = XKeysymToString(keysyms[sym_per_key * (i - min_keycode)]); used[allegro_key] = 1; TRACE(" assigned to %i.\n", allegro_key); } } if (missing) { /* The keys still not assigned are just assigned arbitrarily now. */ for (i = min_keycode; i <= max_keycode; i++) { if (_xwin.keycode_to_scancode[i] == 0) { find_unknown_key_assignment(i); } } } if (xmodmap) XFreeModifiermap(xmodmap); xmodmap = XGetModifierMapping(_xwin.display); for (i = 0; i < 8; i++) { int j; TRACE (PREFIX_I "Modifier %d:", i + 1); for (j = 0; j < xmodmap->max_keypermod; j++) { KeySym sym = XKeycodeToKeysym(_xwin.display, xmodmap->modifiermap[i * xmodmap->max_keypermod + j], 0); char *sym_str = XKeysymToString(sym); TRACE(" %s", sym_str ? sym_str : "NULL"); } TRACE("\n"); } /* The [xkeymap] section can be useful, e.g. if trying to play a * game which has X and Y hardcoded as AL_KEY_X and AL_KEY_Y to mean * left/right movement, but on the X11 keyboard X and Y are far apart. * For normal use, a user never should have to touch [xkeymap] anymore * though, and proper written programs will not hardcode such mappings. */ { char *section, *option_format; char option[128], tmp1[128], tmp2[128]; section = uconvert_ascii("xkeymap", tmp1); option_format = uconvert_ascii("keycode%d", tmp2); for (i = min_keycode; i <= max_keycode; i++) { int scancode; uszprintf(option, sizeof(option), option_format, i); scancode = get_config_int(section, option, -1); if (scancode > 0) { _xwin.keycode_to_scancode[i] = scancode; TRACE(PREFIX_I "User override: KeySym %i assigned to %i.\n", i, scancode); } } } } void _al_xwin_get_keyboard_mapping(void) { XLOCK(); private_get_keyboard_mapping(); XUNLOCK(); } /* x_set_leds: * Update the keyboard LEDs. */ static void x_set_leds(int leds) { XKeyboardControl values; ASSERT(xkeyboard_installed); XLOCK(); values.led = 1; values.led_mode = leds & AL_KEYMOD_NUMLOCK ? LedModeOn : LedModeOff; XChangeKeyboardControl(_xwin.display, KBLed | KBLedMode, &values); values.led = 2; values.led_mode = leds & AL_KEYMOD_CAPSLOCK ? LedModeOn : LedModeOff; XChangeKeyboardControl(_xwin.display, KBLed | KBLedMode, &values); values.led = 3; values.led_mode = leds & AL_KEYMOD_SCROLLLOCK ? LedModeOn : LedModeOff; XChangeKeyboardControl(_xwin.display, KBLed | KBLedMode, &values); XUNLOCK(); } /* x_keyboard_init * Initialise the X11 keyboard driver. */ static int x_keyboard_init(void) { #ifdef ALLEGRO_USE_XIM XIMStyles *xim_styles; XIMStyle xim_style = 0; char *imvalret; int i; #endif if (xkeyboard_installed) return 0; main_pid = getpid(); memcpy(key_names, _al_keyboard_common_names, sizeof key_names); XLOCK (); #ifdef ALLEGRO_USE_XIM /* TODO: is this needed? if (setlocale(LC_ALL,"") == NULL) { TRACE(PREFIX_W "Could not set default locale.\n"); } modifiers = XSetLocaleModifiers("@im=none"); if (modifiers == NULL) { TRACE(PREFIX_W "XSetLocaleModifiers failed.\n"); } */ xim = XOpenIM (_xwin.display, NULL, NULL, NULL); if (xim == NULL) { TRACE(PREFIX_W "XOpenIM failed.\n"); } if (xim) { imvalret = XGetIMValues(xim, XNQueryInputStyle, &xim_styles, NULL); if (imvalret != NULL || xim_styles == NULL) { TRACE(PREFIX_W "Input method doesn't support any styles.\n"); } if (xim_styles) { xim_style = 0; for (i = 0; i < xim_styles->count_styles; i++) { if (xim_styles->supported_styles[i] == (XIMPreeditNothing | XIMStatusNothing)) { xim_style = xim_styles->supported_styles[i]; break; } } if (xim_style == 0) { TRACE (PREFIX_W "Input method doesn't support the style we support.\n"); } XFree(xim_styles); } } if (xim && xim_style) { xic = XCreateIC(xim, XNInputStyle, xim_style, XNClientWindow, _xwin.window, XNFocusWindow, _xwin.window, NULL); if (xic == NULL) { TRACE (PREFIX_W "XCreateIC failed.\n"); } } #endif private_get_keyboard_mapping(); XUNLOCK(); xkeyboard_installed = 1; return 0; } /* x_keyboard_exit * Shut down the X11 keyboard driver. */ static void x_keyboard_exit(void) { if (!xkeyboard_installed) return; xkeyboard_installed = 0; XLOCK(); #ifdef ALLEGRO_USE_XIM if (xic) { XDestroyIC(xic); xic = NULL; } if (xim) { XCloseIM(xim); xim = NULL; } #endif if (xmodmap) { XFreeModifiermap(xmodmap); xmodmap = NULL; } if (keysyms) { XFree(keysyms); keysyms = NULL; } XUNLOCK(); } /*---------------------------------------------------------------------- * * Supports for new API. For now this code is kept separate from the * above to ease merging changes made in the trunk. * */ typedef struct AL_KEYBOARD_XWIN { AL_KEYBOARD parent; AL_KBDSTATE state; } AL_KEYBOARD_XWIN; /* the one and only keyboard object */ static AL_KEYBOARD_XWIN the_keyboard; /* forward declarations */ static bool xkeybd_init_keyboard(void); static void xkeybd_exit_keyboard(void); static AL_KEYBOARD *xkeybd_get_keyboard(void); static bool xkeybd_set_keyboard_leds(int leds); static AL_CONST char *xkeybd_keycode_to_name(int keycode); static void xkeybd_get_keyboard_state(AL_KBDSTATE *ret_state); /* the driver vtable */ #define KEYDRV_XWIN AL_ID('X','W','I','N') static AL_KEYBOARD_DRIVER keydrv_xwin = { KEYDRV_XWIN, empty_string, empty_string, "X11 keyboard", xkeybd_init_keyboard, xkeybd_exit_keyboard, xkeybd_get_keyboard, xkeybd_set_keyboard_leds, xkeybd_keycode_to_name, xkeybd_get_keyboard_state }; /* list the available drivers */ _DRIVER_INFO _al_xwin_keyboard_driver_list[] = { { KEYDRV_XWIN, &keydrv_xwin, TRUE }, { 0, NULL, 0 } }; /* xkeybd_init_keyboard: * Initialise the driver. */ static bool xkeybd_init_keyboard(void) { if (x_keyboard_init() != 0) return false; memset(&the_keyboard, 0, sizeof the_keyboard); _al_event_source_init(&the_keyboard.parent.es, _AL_ALL_KEYBOARD_EVENTS); //_xwin_keydrv_set_leds(_key_shifts); /* Get the pid, which we use for the three finger salute */ main_pid = getpid(); return true; } /* xkeybd_exit_keyboard: * Shut down the keyboard driver. */ static void xkeybd_exit_keyboard(void) { x_keyboard_exit(); _al_event_source_free(&the_keyboard.parent.es); } /* xkeybd_get_keyboard: * Returns the address of a AL_KEYBOARD structure representing the keyboard. */ static AL_KEYBOARD *xkeybd_get_keyboard(void) { return (AL_KEYBOARD *)&the_keyboard; } /* xkeybd_set_keyboard_leds: * Updates the LED state. */ static bool xkeybd_set_keyboard_leds(int leds) { x_set_leds(leds); return true; } /* xkeybd_keycode_to_name: * Converts the given keycode to a description of the key. */ static AL_CONST char *xkeybd_keycode_to_name(int keycode) { return x_scancode_to_name(keycode); } /* xkeybd_get_keyboard_state: * Copy the current keyboard state into RET_STATE, with any necessary locking. */ static void xkeybd_get_keyboard_state(AL_KBDSTATE *ret_state) { _al_event_source_lock(&the_keyboard.parent.es); { *ret_state = the_keyboard.state; } _al_event_source_unlock(&the_keyboard.parent.es); } /* handle_key_press: [bgman thread] * Hook for the X event dispatcher to handle key presses. * The caller must lock the X-display. */ static int last_press_code = -1; static void handle_key_press(int mycode, int unichar, unsigned int modifiers) { bool is_repeat; AL_EVENT *event; AL_EVENT_TYPE type; is_repeat = (last_press_code == mycode); last_press_code = mycode; _al_event_source_lock(&the_keyboard.parent.es); { /* Update the key_down array. */ _AL_KBDSTATE_SET_KEY_DOWN(the_keyboard.state, mycode); /* Generate the press event if necessary. */ type = is_repeat ? AL_EVENT_KEY_REPEAT : AL_EVENT_KEY_DOWN; if ((_al_event_source_needs_to_generate_event(&the_keyboard.parent.es, type)) && (event = _al_event_source_get_unused_event(&the_keyboard.parent.es))) { event->keyboard.type = type; event->keyboard.timestamp = al_current_time(); event->keyboard.__display__dont_use_yet__ = NULL; /* TODO */ event->keyboard.keycode = mycode; event->keyboard.unichar = unichar; event->keyboard.modifiers = modifiers; _al_event_source_emit_event(&the_keyboard.parent.es, event); } } _al_event_source_unlock(&the_keyboard.parent.es); /* Exit by Ctrl-Alt-End. */ if ((_al_three_finger_flag) && ((mycode == AL_KEY_DELETE) || (mycode == AL_KEY_END)) && (modifiers & AL_KEYMOD_CTRL) && (modifiers & (AL_KEYMOD_ALT | AL_KEYMOD_ALTGR))) { TRACE(PREFIX_W "Three finger combo detected. SIGTERMing " "pid %d\n", main_pid); kill(main_pid, SIGTERM); } } /* handle_key_release: [bgman thread] * Hook for the X event dispatcher to handle key releases. * The caller must lock the X-display. */ static void handle_key_release(int mycode) { AL_EVENT *event; if (last_press_code == mycode) last_press_code = -1; _al_event_source_lock(&the_keyboard.parent.es); { /* Update the key_down array. */ _AL_KBDSTATE_CLEAR_KEY_DOWN(the_keyboard.state, mycode); /* Generate the release event if necessary. */ if ((_al_event_source_needs_to_generate_event(&the_keyboard.parent.es, AL_EVENT_KEY_UP)) && (event = _al_event_source_get_unused_event(&the_keyboard.parent.es))) { event->keyboard.type = AL_EVENT_KEY_UP; event->keyboard.timestamp = al_current_time(); event->keyboard.__display__dont_use_yet__ = NULL; /* TODO */ event->keyboard.keycode = mycode; event->keyboard.unichar = 0; event->keyboard.modifiers = 0; _al_event_source_emit_event(&the_keyboard.parent.es, event); } } _al_event_source_unlock(&the_keyboard.parent.es); }