//======================================================================== // GLFW 3.4 XKB - www.glfw.org //------------------------------------------------------------------------ // Copyright (c) 2018 Kovid Goyal // // This software is provided 'as-is', without any express or implied // warranty. In no event will the authors be held liable for any damages // arising from the use of this software. // // Permission is granted to anyone to use this software for any purpose, // including commercial applications, and to alter it and redistribute it // freely, subject to the following restrictions: // // 1. The origin of this software must not be misrepresented; you must not // claim that you wrote the original software. If you use this software // in a product, an acknowledgment in the product documentation would // be appreciated but is not required. // // 2. Altered source versions must be plainly marked as such, and must not // be misrepresented as being the original software. // // 3. This notice may not be removed or altered from any source // distribution. // //======================================================================== #include #include #include "internal.h" #include "xkb_glfw.h" START_ALLOW_CASE_RANGE #define debug(...) if (_glfw.hints.init.debugKeyboard) printf(__VA_ARGS__); #define map_key(key) \ switch(key) { \ S(space, SPACE); \ S(exclam, EXCLAM); \ S(quotedbl, DOUBLE_QUOTE); \ S(numbersign, NUMBER_SIGN); \ S(dollar, DOLLAR); \ S(ampersand, AMPERSAND); \ S(apostrophe, APOSTROPHE); \ S(parenleft, PARENTHESIS_LEFT); \ S(parenright, PARENTHESIS_RIGHT); \ S(plus, PLUS); \ S(comma, COMMA); \ S(minus, MINUS); \ S(period, PERIOD); \ S(slash, SLASH); \ R(0, 9, 0, 9); \ S(colon, COLON); \ S(semicolon, SEMICOLON); \ S(less, LESS); \ S(equal, EQUAL); \ S(greater, GREATER); \ S(at, AT); \ D(A, Z, A, Z); \ S(bracketleft, LEFT_BRACKET); \ S(backslash, BACKSLASH); \ S(bracketright, RIGHT_BRACKET); \ S(underscore, UNDERSCORE); \ S(grave, GRAVE_ACCENT); \ R(a, z, A, Z); \ S(paragraph, PARAGRAPH); \ S(masculine, MASCULINE); \ S(agrave, A_GRAVE); \ F(Agrave, A_GRAVE); \ S(adiaeresis, A_DIAERESIS); \ F(Adiaeresis, A_DIAERESIS); \ S(aring, A_RING); \ F(Aring, A_RING); \ S(ae, AE); \ F(AE, AE); \ S(ccedilla, C_CEDILLA); \ F(Ccedilla, C_CEDILLA); \ S(egrave, E_GRAVE); \ F(Egrave, E_GRAVE); \ S(aacute, E_ACUTE); \ F(Eacute, E_ACUTE); \ S(igrave, I_GRAVE); \ F(Igrave, I_GRAVE); \ S(ntilde, N_TILDE); \ F(Ntilde, N_TILDE); \ S(ograve, O_GRAVE); \ F(Ograve, O_GRAVE); \ S(odiaeresis, O_DIAERESIS); \ F(Odiaeresis, O_DIAERESIS); \ S(oslash, O_SLASH); \ F(Oslash, O_SLASH); \ S(ugrave, U_GRAVE); \ F(Ugrave, U_GRAVE); \ S(udiaeresis, U_DIAERESIS); \ F(Udiaeresis, U_DIAERESIS); \ S(ssharp, S_SHARP); \ S(Cyrillic_a, CYRILLIC_A); \ F(Cyrillic_A, CYRILLIC_A); \ S(Cyrillic_be, CYRILLIC_BE); \ F(Cyrillic_BE, CYRILLIC_BE); \ S(Cyrillic_ve, CYRILLIC_VE); \ F(Cyrillic_VE, CYRILLIC_VE); \ S(Cyrillic_ghe, CYRILLIC_GHE); \ F(Cyrillic_GHE, CYRILLIC_GHE); \ S(Cyrillic_de, CYRILLIC_DE); \ F(Cyrillic_DE, CYRILLIC_DE); \ S(Cyrillic_ie, CYRILLIC_IE); \ F(Cyrillic_IE, CYRILLIC_IE); \ S(Cyrillic_zhe, CYRILLIC_ZHE); \ F(Cyrillic_ZHE, CYRILLIC_ZHE); \ S(Cyrillic_ze, CYRILLIC_ZE); \ F(Cyrillic_ZE, CYRILLIC_ZE); \ S(Cyrillic_i, CYRILLIC_I); \ F(Cyrillic_I, CYRILLIC_I); \ S(Cyrillic_shorti, CYRILLIC_SHORT_I); \ F(Cyrillic_SHORTI, CYRILLIC_SHORT_I); \ S(Cyrillic_ka, CYRILLIC_KA); \ F(Cyrillic_KA, CYRILLIC_KA); \ S(Cyrillic_el, CYRILLIC_EL); \ F(Cyrillic_EL, CYRILLIC_EL); \ S(Cyrillic_em, CYRILLIC_EM); \ F(Cyrillic_EM, CYRILLIC_EM); \ S(Cyrillic_en, CYRILLIC_EN); \ F(Cyrillic_EN, CYRILLIC_EN); \ S(Cyrillic_o, CYRILLIC_O); \ F(Cyrillic_O, CYRILLIC_O); \ S(Cyrillic_pe, CYRILLIC_PE); \ F(Cyrillic_PE, CYRILLIC_PE); \ S(Cyrillic_er, CYRILLIC_ER); \ F(Cyrillic_ER, CYRILLIC_ER); \ S(Cyrillic_es, CYRILLIC_ES); \ F(Cyrillic_ES, CYRILLIC_ES); \ S(Cyrillic_te, CYRILLIC_TE); \ F(Cyrillic_TE, CYRILLIC_TE); \ S(Cyrillic_u, CYRILLIC_U); \ F(Cyrillic_U, CYRILLIC_U); \ S(Cyrillic_ef, CYRILLIC_EF); \ F(Cyrillic_EF, CYRILLIC_EF); \ S(Cyrillic_ha, CYRILLIC_HA); \ F(Cyrillic_HA, CYRILLIC_HA); \ S(Cyrillic_tse, CYRILLIC_TSE); \ F(Cyrillic_TSE, CYRILLIC_TSE); \ S(Cyrillic_che, CYRILLIC_CHE); \ F(Cyrillic_CHE, CYRILLIC_CHE); \ S(Cyrillic_sha, CYRILLIC_SHA); \ F(Cyrillic_SHA, CYRILLIC_SHA); \ S(Cyrillic_shcha, CYRILLIC_SHCHA); \ F(Cyrillic_SHCHA, CYRILLIC_SHCHA); \ S(Cyrillic_hardsign, CYRILLIC_HARD_SIGN); \ F(Cyrillic_HARDSIGN, CYRILLIC_HARD_SIGN); \ S(Cyrillic_yeru, CYRILLIC_YERU); \ F(Cyrillic_YERU, CYRILLIC_YERU); \ S(Cyrillic_softsign, CYRILLIC_SOFT_SIGN); \ F(Cyrillic_SOFTSIGN, CYRILLIC_SOFT_SIGN); \ S(Cyrillic_e, CYRILLIC_E); \ F(Cyrillic_E, CYRILLIC_E); \ S(Cyrillic_yu, CYRILLIC_YU); \ F(Cyrillic_YU, CYRILLIC_YU); \ S(Cyrillic_ya, CYRILLIC_YA); \ F(Cyrillic_YA, CYRILLIC_YA); \ S(Cyrillic_io, CYRILLIC_IO); \ F(Cyrillic_IO, CYRILLIC_IO); \ S(Escape, ESCAPE); \ S(Return, ENTER); \ S(Tab, TAB); \ S(BackSpace, BACKSPACE); \ S(Insert, INSERT); \ S(Delete, DELETE); \ S(Right, RIGHT); \ S(Left, LEFT); \ S(Up, UP); \ S(Down, DOWN); \ S(Page_Up, PAGE_UP); \ S(Page_Down, PAGE_DOWN); \ S(Home, HOME); \ S(End, END); \ S(Caps_Lock, CAPS_LOCK); \ S(Scroll_Lock, SCROLL_LOCK); \ S(Num_Lock, NUM_LOCK); \ S(Print, PRINT_SCREEN); \ S(Pause, PAUSE); \ S(KP_Decimal, KP_DECIMAL); \ S(KP_Divide, KP_DIVIDE); \ S(KP_Multiply, KP_MULTIPLY); \ S(KP_Subtract, KP_SUBTRACT); \ S(KP_Add, KP_ADD); \ S(KP_Enter, KP_ENTER); \ S(KP_Equal, KP_EQUAL); \ F(KP_Home, HOME); \ F(KP_End, END); \ F(KP_Page_Up, PAGE_UP); \ F(KP_Page_Down, PAGE_DOWN); \ F(KP_Insert, INSERT); \ F(KP_Delete, DELETE); \ S(Shift_L, LEFT_SHIFT); \ S(Control_L, LEFT_CONTROL); \ S(Alt_L, LEFT_ALT); \ S(Super_L, LEFT_SUPER); \ S(Shift_R, RIGHT_SHIFT); \ S(Control_R, RIGHT_CONTROL); \ S(Alt_R, RIGHT_ALT); \ S(Super_R, RIGHT_SUPER); \ S(Menu, MENU); \ R(F1, F25, F1, F25); \ R(KP_0, KP_9, KP_0, KP_9); \ static int glfw_key_for_sym(xkb_keysym_t key) { #define S(f, t) case XKB_KEY_##f: return GLFW_KEY_##t #define F(f, t) S(f, t) #define R(s, e, gs, ...) case XKB_KEY_##s ... XKB_KEY_##e: return GLFW_KEY_##gs + key - XKB_KEY_##s #define D(s, e, gs, ...) R(s, e, gs, __VA_ARGS__) map_key(key) S(KP_Up, UP); S(KP_Down, DOWN); S(KP_Left, LEFT); S(KP_Right, RIGHT); default: break; } return GLFW_KEY_UNKNOWN; #undef F #undef D #undef R #undef S } xkb_keysym_t glfw_xkb_sym_for_key(int key) { #define S(f, t) case GLFW_KEY_##t: return XKB_KEY_##f #define F(...) #define R(s, e, gs, ge) case GLFW_KEY_##gs ... GLFW_KEY_##ge: return XKB_KEY_##s + key - GLFW_KEY_##gs #define D(...) map_key(key) default: break; } return GLFW_KEY_UNKNOWN; #undef F #undef D #undef R #undef S } END_ALLOW_CASE_RANGE #ifdef _GLFW_X11 bool glfw_xkb_set_x11_events_mask(void) { if (!XkbSelectEvents(_glfw.x11.display, XkbUseCoreKbd, XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask, XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask)) { _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to set XKB events mask"); return false; } return true; } bool glfw_xkb_update_x11_keyboard_id(_GLFWXKBData *xkb) { xkb->keyboard_device_id = -1; xcb_connection_t* conn = XGetXCBConnection(_glfw.x11.display); if (!conn) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to retrieve XCB connection"); return false; } xkb->keyboard_device_id = xkb_x11_get_core_keyboard_device_id(conn); if (xkb->keyboard_device_id == -1) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to retrieve core keyboard device id"); return false; } return true; } #define xkb_glfw_load_keymap(keymap, ...) {\ xcb_connection_t* conn = XGetXCBConnection(_glfw.x11.display); \ if (conn) keymap = xkb_x11_keymap_new_from_device(xkb->context, conn, xkb->keyboard_device_id, XKB_KEYMAP_COMPILE_NO_FLAGS); \ } #define xkb_glfw_load_state(keymap, state) {\ xcb_connection_t* conn = XGetXCBConnection(_glfw.x11.display); \ if (conn) state = xkb_x11_state_new_from_device(keymap, conn, xkb->keyboard_device_id); \ } #else #define xkb_glfw_load_keymap(keymap, map_str) keymap = xkb_keymap_new_from_string(xkb->context, map_str, XKB_KEYMAP_FORMAT_TEXT_V1, 0); #define xkb_glfw_load_state(keymap, state) state = xkb_state_new(keymap); #endif static void release_keyboard_data(_GLFWXKBData *xkb) { #define US(group, state, unref) if (xkb->group.state) { unref(xkb->group.state); xkb->group.state = NULL; } #define UK(keymap) if(xkb->keymap) { xkb_keymap_unref(xkb->keymap); xkb->keymap = NULL; } US(states, composeState, xkb_compose_state_unref); UK(keymap); UK(default_keymap); US(states, state, xkb_state_unref); US(states, clean_state, xkb_state_unref); US(states, default_state, xkb_state_unref); #undef US #undef UK } void glfw_xkb_release(_GLFWXKBData *xkb) { release_keyboard_data(xkb); if (xkb->context) { xkb_context_unref(xkb->context); xkb->context = NULL; } glfw_ibus_terminate(&xkb->ibus); } bool glfw_xkb_create_context(_GLFWXKBData *xkb) { xkb->context = xkb_context_new(0); if (!xkb->context) { _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to initialize XKB context"); return false; } glfw_connect_to_ibus(&xkb->ibus); return true; } static const char* load_keymaps(_GLFWXKBData *xkb, const char *map_str) { (void)(map_str); // not needed on X11 xkb_glfw_load_keymap(xkb->keymap, map_str); if (!xkb->keymap) return "Failed to compile XKB keymap"; // The system default keymap, can be overridden by the XKB_DEFAULT_RULES // env var, see // https://xkbcommon.org/doc/current/structxkb__rule__names.html static struct xkb_rule_names default_rule_names = {0}; xkb->default_keymap = xkb_keymap_new_from_names(xkb->context, &default_rule_names, XKB_KEYMAP_COMPILE_NO_FLAGS); if (!xkb->default_keymap) return "Failed to create default XKB keymap"; return NULL; } static const char* load_states(_GLFWXKBData *xkb) { xkb_glfw_load_state(xkb->keymap, xkb->states.state); xkb->states.clean_state = xkb_state_new(xkb->keymap); xkb->states.default_state = xkb_state_new(xkb->default_keymap); if (!xkb->states.state || !xkb->states.clean_state || !xkb->states.default_state) return "Failed to create XKB state"; return NULL; } static void load_compose_tables(_GLFWXKBData *xkb) { /* Look up the preferred locale, falling back to "C" as default. */ struct xkb_compose_table* compose_table = NULL; const char *locale = getenv("LC_ALL"); if (!locale) locale = getenv("LC_CTYPE"); if (!locale) locale = getenv("LANG"); if (!locale) locale = "C"; compose_table = xkb_compose_table_new_from_locale(xkb->context, locale, XKB_COMPOSE_COMPILE_NO_FLAGS); if (!compose_table) { _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to create XKB compose table for locale %s", locale); return; } xkb->states.composeState = xkb_compose_state_new(compose_table, XKB_COMPOSE_STATE_NO_FLAGS); if (!xkb->states.composeState) { _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to create XKB compose state"); } xkb_compose_table_unref(compose_table); } bool glfw_xkb_compile_keymap(_GLFWXKBData *xkb, const char *map_str) { const char *err; release_keyboard_data(xkb); err = load_keymaps(xkb, map_str); if (err) { _glfwInputError(GLFW_PLATFORM_ERROR, "%s", err); release_keyboard_data(xkb); return false; } err = load_states(xkb); if (err) { _glfwInputError(GLFW_PLATFORM_ERROR, "%s", err); release_keyboard_data(xkb); return false; } load_compose_tables(xkb); #define S(a, n) xkb->a##Idx = xkb_keymap_mod_get_index(xkb->keymap, n); xkb->a##Mask = 1 << xkb->a##Idx; S(control, XKB_MOD_NAME_CTRL); S(alt, XKB_MOD_NAME_ALT); S(shift, XKB_MOD_NAME_SHIFT); S(super, XKB_MOD_NAME_LOGO); S(capsLock, XKB_MOD_NAME_CAPS); S(numLock, XKB_MOD_NAME_NUM); #undef S size_t capacity = sizeof(xkb->unknownModifiers)/sizeof(xkb->unknownModifiers[0]), j = 0; for (xkb_mod_index_t i = 0; i < capacity; i++) xkb->unknownModifiers[i] = XKB_MOD_INVALID; for (xkb_mod_index_t i = 0; i < xkb_keymap_num_mods(xkb->keymap) && j < capacity - 1; i++) { if (i != xkb->controlIdx && i != xkb->altIdx && i != xkb->shiftIdx && i != xkb->superIdx && i != xkb->capsLockIdx && i != xkb->numLockIdx) xkb->unknownModifiers[j++] = i; } xkb->states.modifiers = 0; xkb->states.activeUnknownModifiers = 0; return true; } static inline xkb_mod_mask_t active_unknown_modifiers(_GLFWXKBData *xkb, struct xkb_state *state) { size_t i = 0; xkb_mod_mask_t ans = 0; while (xkb->unknownModifiers[i] != XKB_MOD_INVALID) { if (xkb_state_mod_index_is_active(state, xkb->unknownModifiers[i], XKB_STATE_MODS_EFFECTIVE)) ans |= (1 << xkb->unknownModifiers[i]); i++; } return ans; } static void update_modifiers(_GLFWXKBData *xkb, XKBStateGroup *group) { #define S(attr, name) if (xkb_state_mod_index_is_active(group->state, xkb->attr##Idx, XKB_STATE_MODS_EFFECTIVE)) group->modifiers |= GLFW_MOD_##name S(control, CONTROL); S(alt, ALT); S(shift, SHIFT); S(super, SUPER); S(capsLock, CAPS_LOCK); S(numLock, NUM_LOCK); #undef S xkb->states.activeUnknownModifiers = active_unknown_modifiers(xkb, xkb->states.state); } void glfw_xkb_update_modifiers(_GLFWXKBData *xkb, xkb_mod_mask_t depressed, xkb_mod_mask_t latched, xkb_mod_mask_t locked, xkb_layout_index_t base_group, xkb_layout_index_t latched_group, xkb_layout_index_t locked_group) { if (!xkb->keymap) return; xkb->states.modifiers = 0; xkb_state_update_mask(xkb->states.state, depressed, latched, locked, base_group, latched_group, locked_group); // We have to update the groups in clean_state, as they change for // different keyboard layouts, see https://github.com/kovidgoyal/kitty/issues/488 xkb_state_update_mask(xkb->states.clean_state, 0, 0, 0, base_group, latched_group, locked_group); update_modifiers(xkb, &xkb->states); } bool glfw_xkb_should_repeat(_GLFWXKBData *xkb, xkb_keycode_t keycode) { #ifdef _GLFW_WAYLAND keycode += 8; #endif return xkb_keymap_key_repeats(xkb->keymap, keycode); } static inline xkb_keysym_t compose_symbol(struct xkb_compose_state *composeState, xkb_keysym_t sym, int *compose_completed, char *key_text, int n) { *compose_completed = 0; if (sym == XKB_KEY_NoSymbol || !composeState) return sym; if (xkb_compose_state_feed(composeState, sym) != XKB_COMPOSE_FEED_ACCEPTED) return sym; switch (xkb_compose_state_get_status(composeState)) { case XKB_COMPOSE_COMPOSED: xkb_compose_state_get_utf8(composeState, key_text, n); *compose_completed = 1; return xkb_compose_state_get_one_sym(composeState); case XKB_COMPOSE_COMPOSING: case XKB_COMPOSE_CANCELLED: return XKB_KEY_NoSymbol; case XKB_COMPOSE_NOTHING: default: return sym; } } const char* glfw_xkb_keysym_name(xkb_keysym_t sym) { static char name[256]; name[0] = 0; xkb_keysym_get_name(sym, name, sizeof(name)); return name; } int glfw_xkb_keysym_from_name(const char *name, bool case_sensitive) { return (int)xkb_keysym_from_name(name, case_sensitive ? XKB_KEYSYM_NO_FLAGS : XKB_KEYSYM_CASE_INSENSITIVE); } static inline const char* format_mods(unsigned int mods) { static char buf[128]; char *p = buf, *s; #define pr(x) p += snprintf(p, sizeof(buf) - (p - buf) - 1, "%s", x) pr("mods: "); s = p; if (mods & GLFW_MOD_CONTROL) pr("ctrl+"); if (mods & GLFW_MOD_ALT) pr("alt+"); if (mods & GLFW_MOD_SHIFT) pr("shift+"); if (mods & GLFW_MOD_SUPER) pr("super+"); if (mods & GLFW_MOD_CAPS_LOCK) pr("capslock+"); if (mods & GLFW_MOD_NUM_LOCK) pr("numlock+"); if (p == s) pr("none"); else p--; pr(" "); #undef pr return buf; } static inline const char* format_xkb_mods(_GLFWXKBData *xkb, const char* name, xkb_mod_mask_t mods) { static char buf[512]; char *p = buf, *s; #define pr(x) p += snprintf(p, sizeof(buf) - (p - buf) - 1, "%s", x) pr(name); pr(": "); s = p; for (xkb_mod_index_t i = 0; i < xkb_keymap_num_mods(xkb->keymap); i++) { xkb_mod_mask_t m = 1 << i; if (m & mods) { pr(xkb_keymap_mod_get_name(xkb->keymap, i)); pr("+"); } } if (p == s) pr("none"); else p--; pr(" "); #undef pr return buf; } void glfw_xkb_update_ime_state(_GLFWwindow *w, _GLFWXKBData *xkb, int which, int a, int b, int c, int d) { int x = 0, y = 0; switch(which) { case 1: glfw_ibus_set_focused(&xkb->ibus, a ? true : false); break; case 2: _glfwPlatformGetWindowPos(w, &x, &y); x += a; y += b; glfw_ibus_set_cursor_geometry(&xkb->ibus, x, y, c, d); break; } } void glfw_xkb_key_from_ime(_GLFWIBUSKeyEvent *ev, bool handled_by_ime, bool failed) { _GLFWwindow *window = _glfwWindowForId(ev->window_id); if (failed && window && window->callbacks.keyboard) { // notify application to remove any existing pre-edit text GLFWkeyevent fake_ev; _glfwInitializeKeyEvent(&fake_ev, GLFW_KEY_UNKNOWN, 0, GLFW_PRESS, 0); fake_ev.ime_state = 1; window->callbacks.keyboard((GLFWwindow*) window, &fake_ev); } static xkb_keycode_t last_handled_press_keycode = 0; // We filter out release events that correspond to the last press event // handled by the IME system. This won't fix the case of multiple key // presses before a release, but is better than nothing. For that case // you'd need to implement a ring buffer to store pending key presses. xkb_keycode_t prev_handled_press = last_handled_press_keycode; last_handled_press_keycode = 0; bool is_release = ev->glfw_ev.action == GLFW_RELEASE; debug("From IBUS: native_key: 0x%x name: %s is_release: %d\n", ev->glfw_ev.native_key, glfw_xkb_keysym_name(ev->glfw_ev.key), is_release); if (window && !handled_by_ime && !(is_release && ev->glfw_ev.native_key == (int) prev_handled_press)) { debug("↳ to application: glfw_keycode: 0x%x (%s) keysym: 0x%x (%s) action: %s %s text: %s\n", ev->glfw_ev.native_key, _glfwGetKeyName(ev->glfw_ev.native_key), ev->glfw_ev.key, glfw_xkb_keysym_name(ev->glfw_ev.key), (ev->glfw_ev.action == GLFW_RELEASE ? "RELEASE" : (ev->glfw_ev.action == GLFW_PRESS ? "PRESS" : "REPEAT")), format_mods(ev->glfw_ev.mods), ev->glfw_ev.text ); ev->glfw_ev.ime_state = 0; _glfwInputKeyboard(window, &ev->glfw_ev); } else debug("↳ discarded\n"); if (!is_release && handled_by_ime) last_handled_press_keycode = ev->glfw_ev.native_key; } void glfw_xkb_handle_key_event(_GLFWwindow *window, _GLFWXKBData *xkb, xkb_keycode_t xkb_keycode, int action) { static char key_text[64] = {0}; const xkb_keysym_t *syms, *clean_syms, *default_syms; xkb_keysym_t xkb_sym; xkb_keycode_t code_for_sym = xkb_keycode, ibus_keycode = xkb_keycode; GLFWkeyevent glfw_ev; _glfwInitializeKeyEvent(&glfw_ev, GLFW_KEY_UNKNOWN, 0, GLFW_PRESS, 0); // init with default values #ifdef _GLFW_WAYLAND code_for_sym += 8; #else ibus_keycode -= 8; #endif debug("%s xkb_keycode: 0x%x ", action == GLFW_RELEASE ? "Release" : "Press", xkb_keycode); XKBStateGroup *sg = &xkb->states; int num_syms = xkb_state_key_get_syms(sg->state, code_for_sym, &syms); int num_clean_syms = xkb_state_key_get_syms(sg->clean_state, code_for_sym, &clean_syms); key_text[0] = 0; // According to the documentation of xkb_compose_state_feed it does not // support multi-sym events, so we ignore them if (num_syms != 1 || num_clean_syms != 1) { debug("num_syms: %d num_clean_syms: %d ignoring event\n", num_syms, num_clean_syms); return; } xkb_sym = clean_syms[0]; debug("clean_sym: %s ", glfw_xkb_keysym_name(clean_syms[0])); if (action == GLFW_PRESS || action == GLFW_REPEAT) { const char *text_type = "composed_text"; int compose_completed; xkb_sym = compose_symbol(sg->composeState, syms[0], &compose_completed, key_text, sizeof(key_text)); if (xkb_sym == XKB_KEY_NoSymbol && !compose_completed) { debug("compose not complete, ignoring.\n"); return; } debug("composed_sym: %s ", glfw_xkb_keysym_name(xkb_sym)); if (xkb_sym == syms[0]) { // composed sym is the same as non-composed sym // Only use the clean_sym if no mods other than the mods we report // are active (for example if ISO_Shift_Level_* mods are active // they are not reported by GLFW so the key should be the shifted // key). See https://github.com/kovidgoyal/kitty/issues/171#issuecomment-377557053 xkb_mod_mask_t consumed_unknown_mods = xkb_state_key_get_consumed_mods(sg->state, code_for_sym) & sg->activeUnknownModifiers; if (sg->activeUnknownModifiers) debug("%s", format_xkb_mods(xkb, "active_unknown_mods", sg->activeUnknownModifiers)); if (consumed_unknown_mods) { debug("%s", format_xkb_mods(xkb, "consumed_unknown_mods", consumed_unknown_mods)); } else xkb_sym = clean_syms[0]; // xkb returns text even if alt and/or super are pressed if ( ((GLFW_MOD_CONTROL | GLFW_MOD_ALT | GLFW_MOD_SUPER) & sg->modifiers) == 0) { xkb_state_key_get_utf8(sg->state, code_for_sym, key_text, sizeof(key_text)); } text_type = "text"; } if ((1 <= key_text[0] && key_text[0] <= 31) || key_text[0] == 127) { key_text[0] = 0; // don't send text for ascii control codes } if (key_text[0]) { debug("%s: %s ", text_type, key_text); } } int glfw_sym = glfw_key_for_sym(xkb_sym); bool is_fallback = false; if (glfw_sym == GLFW_KEY_UNKNOWN && !key_text[0]) { int num_default_syms = xkb_state_key_get_syms(sg->default_state, code_for_sym, &default_syms); if (num_default_syms > 0) { xkb_sym = default_syms[0]; glfw_sym = glfw_key_for_sym(xkb_sym); is_fallback = true; } } debug( "%s%s: %d (%s) xkb_key: %d (%s)\n", format_mods(sg->modifiers), is_fallback ? "glfw_fallback_key" : "glfw_key", glfw_sym, _glfwGetKeyName(glfw_sym), xkb_sym, glfw_xkb_keysym_name(xkb_sym) ); // NOTE: On linux, the reported native key identifier is the XKB keysym value. // Do not confuse `native_key` with `xkb_keycode` (the native keycode reported for the // glfw event VS the X internal code for a key). // // We use the XKB keysym instead of the X keycode to be able to go back-and-forth between // the GLFW keysym and the XKB keysym when needed, which is not possible using the X keycode, // because of the lost information when resolving the keycode to the keysym, like consumed // mods. glfw_ev.native_key = xkb_sym; glfw_ev.action = action; glfw_ev.key = glfw_sym; glfw_ev.mods = sg->modifiers; glfw_ev.text = key_text; _GLFWIBUSKeyEvent ibus_ev; ibus_ev.glfw_ev = glfw_ev; ibus_ev.ibus_keycode = ibus_keycode; ibus_ev.window_id = window->id; ibus_ev.ibus_keysym = syms[0]; if (ibus_process_key(&ibus_ev, &xkb->ibus)) { debug("↳ to IBUS: keycode: 0x%x keysym: 0x%x (%s) %s\n", ibus_ev.ibus_keycode, ibus_ev.ibus_keysym, glfw_xkb_keysym_name(ibus_ev.ibus_keysym), format_mods(ibus_ev.glfw_ev.mods)); } else { _glfwInputKeyboard(window, &glfw_ev); } }