2 * Copyright © 2012 Intel Corporation
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of the copyright holders not be used in
9 * advertising or publicity pertaining to distribution of the software
10 * without specific, written prior permission. The copyright holders make
11 * no representations about the suitability of this software for any
12 * purpose. It is provided "as is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
15 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
17 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
18 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
19 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
32 #include <linux/input.h>
35 #include "input-method-client-protocol.h"
50 typedef void (*keyboard_input_key_handler_t)(struct simple_im *keyboard,
52 uint32_t time, uint32_t key, uint32_t unicode,
53 enum wl_keyboard_key_state state);
56 struct wl_input_method *input_method;
57 struct wl_input_method_context *context;
58 struct wl_display *display;
59 struct wl_registry *registry;
60 struct wl_keyboard *keyboard;
61 enum compose_state compose_state;
62 struct compose_seq compose_seq;
64 struct xkb_context *xkb_context;
68 struct xkb_keymap *keymap;
69 struct xkb_state *state;
70 xkb_mod_mask_t control_mask;
71 xkb_mod_mask_t alt_mask;
72 xkb_mod_mask_t shift_mask;
74 keyboard_input_key_handler_t key_handler;
79 static const struct compose_seq compose_seqs[] = {
80 { { XKB_KEY_quotedbl, XKB_KEY_A, 0 }, "Ä" },
81 { { XKB_KEY_quotedbl, XKB_KEY_O, 0 }, "Ö" },
82 { { XKB_KEY_quotedbl, XKB_KEY_U, 0 }, "Ü" },
83 { { XKB_KEY_quotedbl, XKB_KEY_a, 0 }, "ä" },
84 { { XKB_KEY_quotedbl, XKB_KEY_o, 0 }, "ö" },
85 { { XKB_KEY_quotedbl, XKB_KEY_u, 0 }, "ü" },
86 { { XKB_KEY_apostrophe, XKB_KEY_A, 0 }, "Á" },
87 { { XKB_KEY_apostrophe, XKB_KEY_a, 0 }, "á" },
88 { { XKB_KEY_slash, XKB_KEY_O, 0 }, "Ø" },
89 { { XKB_KEY_slash, XKB_KEY_o, 0 }, "ø" },
90 { { XKB_KEY_less, XKB_KEY_3, 0 }, "♥" },
91 { { XKB_KEY_A, XKB_KEY_A, 0 }, "Å" },
92 { { XKB_KEY_A, XKB_KEY_E, 0 }, "Æ" },
93 { { XKB_KEY_O, XKB_KEY_C, 0 }, "©" },
94 { { XKB_KEY_O, XKB_KEY_R, 0 }, "®" },
95 { { XKB_KEY_s, XKB_KEY_s, 0 }, "ß" },
96 { { XKB_KEY_a, XKB_KEY_e, 0 }, "æ" },
97 { { XKB_KEY_a, XKB_KEY_a, 0 }, "å" },
100 static const uint32_t ignore_keys_on_compose[] = {
106 handle_surrounding_text(void *data,
107 struct wl_input_method_context *context,
112 fprintf(stderr, "Surrounding text updated: %s\n", text);
116 handle_reset(void *data,
117 struct wl_input_method_context *context)
119 struct simple_im *keyboard = data;
121 fprintf(stderr, "Reset pre-edit buffer\n");
123 keyboard->compose_state = state_normal;
127 handle_content_type(void *data,
128 struct wl_input_method_context *context,
135 handle_invoke_action(void *data,
136 struct wl_input_method_context *context,
143 handle_commit_state(void *data,
144 struct wl_input_method_context *context,
147 struct simple_im *keyboard = data;
149 keyboard->serial = serial;
153 handle_preferred_language(void *data,
154 struct wl_input_method_context *context,
155 const char *language)
159 static const struct wl_input_method_context_listener input_method_context_listener = {
160 handle_surrounding_text,
163 handle_invoke_action,
165 handle_preferred_language
169 input_method_keyboard_keymap(void *data,
170 struct wl_keyboard *wl_keyboard,
175 struct simple_im *keyboard = data;
178 if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
183 map_str = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
184 if (map_str == MAP_FAILED) {
190 xkb_map_new_from_string(keyboard->xkb_context,
192 XKB_KEYMAP_FORMAT_TEXT_V1,
195 munmap(map_str, size);
198 if (!keyboard->keymap) {
199 fprintf(stderr, "failed to compile keymap\n");
203 keyboard->state = xkb_state_new(keyboard->keymap);
204 if (!keyboard->state) {
205 fprintf(stderr, "failed to create XKB state\n");
206 xkb_map_unref(keyboard->keymap);
210 keyboard->control_mask =
211 1 << xkb_map_mod_get_index(keyboard->keymap, "Control");
213 1 << xkb_map_mod_get_index(keyboard->keymap, "Mod1");
214 keyboard->shift_mask =
215 1 << xkb_map_mod_get_index(keyboard->keymap, "Shift");
219 input_method_keyboard_key(void *data,
220 struct wl_keyboard *wl_keyboard,
226 struct simple_im *keyboard = data;
229 const xkb_keysym_t *syms;
231 enum wl_keyboard_key_state state = state_w;
233 if (!keyboard->state)
237 num_syms = xkb_key_get_syms(keyboard->state, code, &syms);
239 sym = XKB_KEY_NoSymbol;
243 if (keyboard->key_handler)
244 (*keyboard->key_handler)(keyboard, serial, time, key, sym,
249 input_method_keyboard_modifiers(void *data,
250 struct wl_keyboard *wl_keyboard,
252 uint32_t mods_depressed,
253 uint32_t mods_latched,
254 uint32_t mods_locked,
257 struct simple_im *keyboard = data;
258 struct wl_input_method_context *context = keyboard->context;
261 xkb_state_update_mask(keyboard->state, mods_depressed,
262 mods_latched, mods_locked, 0, 0, group);
263 mask = xkb_state_serialize_mods(keyboard->state,
264 XKB_STATE_DEPRESSED |
267 keyboard->modifiers = 0;
268 if (mask & keyboard->control_mask)
269 keyboard->modifiers |= MOD_CONTROL_MASK;
270 if (mask & keyboard->alt_mask)
271 keyboard->modifiers |= MOD_ALT_MASK;
272 if (mask & keyboard->shift_mask)
273 keyboard->modifiers |= MOD_SHIFT_MASK;
275 wl_input_method_context_modifiers(context, serial,
276 mods_depressed, mods_depressed,
277 mods_latched, group);
280 static const struct wl_keyboard_listener input_method_keyboard_listener = {
281 input_method_keyboard_keymap,
284 input_method_keyboard_key,
285 input_method_keyboard_modifiers
289 input_method_activate(void *data,
290 struct wl_input_method *input_method,
291 struct wl_input_method_context *context)
293 struct simple_im *keyboard = data;
295 if (keyboard->context)
296 wl_input_method_context_destroy(keyboard->context);
298 keyboard->compose_state = state_normal;
300 keyboard->serial = 0;
302 keyboard->context = context;
303 wl_input_method_context_add_listener(context,
304 &input_method_context_listener,
306 keyboard->keyboard = wl_input_method_context_grab_keyboard(context);
307 wl_keyboard_add_listener(keyboard->keyboard,
308 &input_method_keyboard_listener,
313 input_method_deactivate(void *data,
314 struct wl_input_method *input_method,
315 struct wl_input_method_context *context)
317 struct simple_im *keyboard = data;
319 if (!keyboard->context)
322 wl_input_method_context_destroy(keyboard->context);
323 keyboard->context = NULL;
326 static const struct wl_input_method_listener input_method_listener = {
327 input_method_activate,
328 input_method_deactivate
332 registry_handle_global(void *data, struct wl_registry *registry,
333 uint32_t name, const char *interface, uint32_t version)
335 struct simple_im *keyboard = data;
337 if (!strcmp(interface, "wl_input_method")) {
338 keyboard->input_method =
339 wl_registry_bind(registry, name,
340 &wl_input_method_interface, 1);
341 wl_input_method_add_listener(keyboard->input_method,
342 &input_method_listener, keyboard);
347 registry_handle_global_remove(void *data, struct wl_registry *registry,
352 static const struct wl_registry_listener registry_listener = {
353 registry_handle_global,
354 registry_handle_global_remove
358 compare_compose_keys(const void *c1, const void *c2)
360 const struct compose_seq *cs1 = c1;
361 const struct compose_seq *cs2 = c2;
364 for (i = 0; cs1->keys[i] != 0 && cs2->keys[i] != 0; i++) {
365 if (cs1->keys[i] != cs2->keys[i])
366 return cs1->keys[i] - cs2->keys[i];
369 if (cs1->keys[i] == cs2->keys[i]
370 || cs1->keys[i] == 0)
373 return cs1->keys[i] - cs2->keys[i];
377 simple_im_key_handler(struct simple_im *keyboard,
378 uint32_t serial, uint32_t time, uint32_t key, uint32_t sym,
379 enum wl_keyboard_key_state state)
381 struct wl_input_method_context *context = keyboard->context;
384 if (sym == XKB_KEY_Multi_key &&
385 state == WL_KEYBOARD_KEY_STATE_RELEASED &&
386 keyboard->compose_state == state_normal) {
387 keyboard->compose_state = state_compose;
388 memset(&keyboard->compose_seq, 0, sizeof(struct compose_seq));
392 if (keyboard->compose_state == state_compose) {
394 struct compose_seq *cs;
396 if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
399 for (i = 0; i < sizeof(ignore_keys_on_compose) / sizeof(ignore_keys_on_compose[0]); i++) {
400 if (sym == ignore_keys_on_compose[i]) {
401 wl_input_method_context_key(context, keyboard->serial, time, key, state);
406 for (i = 0; keyboard->compose_seq.keys[i] != 0; i++);
408 keyboard->compose_seq.keys[i] = sym;
410 cs = bsearch (&keyboard->compose_seq, compose_seqs,
411 sizeof(compose_seqs) / sizeof(compose_seqs[0]),
412 sizeof(compose_seqs[0]), compare_compose_keys);
415 if (cs->keys[i + 1] == 0) {
416 wl_input_method_context_preedit_cursor(keyboard->context,
418 wl_input_method_context_preedit_string(keyboard->context,
421 wl_input_method_context_cursor_position(keyboard->context,
423 wl_input_method_context_commit_string(keyboard->context,
426 keyboard->compose_state = state_normal;
428 uint32_t j = 0, idx = 0;
430 for (; j <= i; j++) {
431 idx += xkb_keysym_to_utf8(cs->keys[j], text + idx, sizeof(text) - idx);
434 wl_input_method_context_preedit_cursor(keyboard->context,
436 wl_input_method_context_preedit_string(keyboard->context,
442 uint32_t j = 0, idx = 0;
444 for (; j <= i; j++) {
445 idx += xkb_keysym_to_utf8(keyboard->compose_seq.keys[j], text + idx, sizeof(text) - idx);
447 wl_input_method_context_preedit_cursor(keyboard->context,
449 wl_input_method_context_preedit_string(keyboard->context,
452 wl_input_method_context_cursor_position(keyboard->context,
454 wl_input_method_context_commit_string(keyboard->context,
457 keyboard->compose_state = state_normal;
462 if (xkb_keysym_to_utf8(sym, text, sizeof(text)) <= 0) {
463 wl_input_method_context_key(context, serial, time, key, state);
467 if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
470 wl_input_method_context_cursor_position(keyboard->context,
472 wl_input_method_context_commit_string(keyboard->context,
478 main(int argc, char *argv[])
480 struct simple_im simple_im;
483 memset(&simple_im, 0, sizeof(simple_im));
485 simple_im.display = wl_display_connect(NULL);
486 if (simple_im.display == NULL) {
487 fprintf(stderr, "failed to connect to server: %m\n");
491 simple_im.registry = wl_display_get_registry(simple_im.display);
492 wl_registry_add_listener(simple_im.registry,
493 ®istry_listener, &simple_im);
494 wl_display_roundtrip(simple_im.display);
495 if (simple_im.input_method == NULL) {
496 fprintf(stderr, "No input_method global\n");
500 simple_im.xkb_context = xkb_context_new(0);
501 if (simple_im.xkb_context == NULL) {
502 fprintf(stderr, "Failed to create XKB context\n");
506 simple_im.context = NULL;
507 simple_im.key_handler = simple_im_key_handler;
510 ret = wl_display_dispatch(simple_im.display);
513 fprintf(stderr, "Dispatch error: %m\n");