Ejemplos de input_method_context_key en C++ (Cpp)

Ejemplo n.º 1

Archivo: weston-simple-im.c Proyecto: abhijitpotnis/weston

static void
simple_im_key_handler(struct simple_im *keyboard,
		      uint32_t serial, uint32_t time, uint32_t key, uint32_t sym,
		      enum wl_keyboard_key_state state)
{
	struct input_method_context *context = keyboard->context;
	char text[64];

	if (sym == XKB_KEY_Multi_key &&
	    state == WL_KEYBOARD_KEY_STATE_RELEASED &&
	    keyboard->compose_state == state_normal) {
		keyboard->compose_state = state_compose;
		memset(&keyboard->compose_seq, 0, sizeof(struct compose_seq));
		return;
	}

	if (keyboard->compose_state == state_compose) {
		uint32_t i = 0;
		struct compose_seq *cs;

		if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
			return;

		for (i = 0; i < sizeof(ignore_keys_on_compose) / sizeof(ignore_keys_on_compose[0]); i++) {
			if (sym == ignore_keys_on_compose[i]) {
				input_method_context_key(context, serial, time, key, state);
				return;
			}
		}

		for (i = 0; keyboard->compose_seq.keys[i] != 0; i++);

		keyboard->compose_seq.keys[i] = sym;

		cs = bsearch (&keyboard->compose_seq, compose_seqs,
			      sizeof(compose_seqs) / sizeof(compose_seqs[0]),
			      sizeof(compose_seqs[0]), compare_compose_keys);

		if (cs) {
			if (cs->keys[i + 1] == 0) {
				input_method_context_preedit_cursor(keyboard->context,
								    keyboard->serial,
								    0);
				input_method_context_preedit_string(keyboard->context,
								    keyboard->serial,
								    "", "");
				input_method_context_cursor_position(keyboard->context,
								     keyboard->serial,
								     0, 0);
				input_method_context_commit_string(keyboard->context,
								   keyboard->serial,
								   cs->text);
				keyboard->compose_state = state_normal;
			} else {
				uint32_t j = 0, idx = 0;

				for (; j <= i; j++) {
					idx += xkb_keysym_to_utf8(cs->keys[j], text + idx, sizeof(text) - idx);
				}

				input_method_context_preedit_cursor(keyboard->context,
								    keyboard->serial,
								    strlen(text));
				input_method_context_preedit_string(keyboard->context,
								    keyboard->serial,
								    text,
								    text);
			}
		} else {
			uint32_t j = 0, idx = 0;

			for (; j <= i; j++) {
				idx += xkb_keysym_to_utf8(keyboard->compose_seq.keys[j], text + idx, sizeof(text) - idx);
			}
			input_method_context_preedit_cursor(keyboard->context,
							    keyboard->serial,
							    0);
			input_method_context_preedit_string(keyboard->context,
							    keyboard->serial,
							    "", "");
			input_method_context_cursor_position(keyboard->context,
							     keyboard->serial,
							     0, 0);
			input_method_context_commit_string(keyboard->context,
							   keyboard->serial,
							   text);
			keyboard->compose_state = state_normal;
		}
		return;
	}

	if (xkb_keysym_to_utf8(sym, text, sizeof(text)) <= 0) {
		input_method_context_key(context, serial, time, key, state);
		return;
	}

	if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
		return;

	input_method_context_cursor_position(keyboard->context,
					     keyboard->serial,
					     0, 0);
	input_method_context_commit_string(keyboard->context,
					   keyboard->serial,
					   text);
}

Ejemplo n.º 2

Archivo: keyboard.c Proyecto: anupamkaul/weston

static void
keyboard_handle_key(struct keyboard *keyboard, const struct key *key)
{
	const char *label = keyboard->state == keyboardstate_default ? key->label : key->alt;

	switch (key->key_type) {
		case keytype_default:
			keyboard->keyboard->preedit_string = strcat(keyboard->keyboard->preedit_string,
								    label);
			input_method_context_preedit_string(keyboard->keyboard->context,
							    keyboard->keyboard->preedit_string,
							    strlen(keyboard->keyboard->preedit_string));
			break;
		case keytype_backspace:
			if (strlen(keyboard->keyboard->preedit_string) == 0) {
				input_method_context_delete_surrounding_text(keyboard->keyboard->context,
									     -1, 1);
			} else {
				keyboard->keyboard->preedit_string[strlen(keyboard->keyboard->preedit_string) - 1] = '\0';
				input_method_context_preedit_string(keyboard->keyboard->context,
								    keyboard->keyboard->preedit_string,
								    strlen(keyboard->keyboard->preedit_string));
			}
			break;
		case keytype_enter:
			input_method_context_key(keyboard->keyboard->context,
						 XKB_KEY_KP_Enter, WL_KEYBOARD_KEY_STATE_PRESSED);
			break;
		case keytype_space:
			keyboard->keyboard->preedit_string = strcat(keyboard->keyboard->preedit_string,
								    " ");
			input_method_context_preedit_string(keyboard->keyboard->context,
							    "",
							    0);
			input_method_context_commit_string(keyboard->keyboard->context,
							   keyboard->keyboard->preedit_string,
							   strlen(keyboard->keyboard->preedit_string));
			free(keyboard->keyboard->preedit_string);
			keyboard->keyboard->preedit_string = strdup("");
			break;
		case keytype_switch:
			if (keyboard->state == keyboardstate_default)
				keyboard->state = keyboardstate_uppercase;
			else
				keyboard->state = keyboardstate_default;
			break;
		case keytype_symbols:
			break;
		case keytype_tab:
			input_method_context_key(keyboard->keyboard->context,
						 XKB_KEY_Tab, WL_KEYBOARD_KEY_STATE_PRESSED);
			break;
		case keytype_arrow_up:
			input_method_context_key(keyboard->keyboard->context,
						 XKB_KEY_Up, WL_KEYBOARD_KEY_STATE_PRESSED);
			break;
		case keytype_arrow_left:
			input_method_context_key(keyboard->keyboard->context,
						 XKB_KEY_Left, WL_KEYBOARD_KEY_STATE_PRESSED);
			break;
		case keytype_arrow_right:
			input_method_context_key(keyboard->keyboard->context,
						 XKB_KEY_Right, WL_KEYBOARD_KEY_STATE_PRESSED);
			break;
		case keytype_arrow_down:
			input_method_context_key(keyboard->keyboard->context,
						 XKB_KEY_Down, WL_KEYBOARD_KEY_STATE_PRESSED);
			break;
	}
}