summaryrefslogtreecommitdiffstats
path: root/quantum/process_keycode/process_ucis.c
blob: 5de2e41fc3055ced66a67b231ebd3f2f7b691f77 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
/* Copyright 2017 Jack Humbert
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "process_ucis.h"

qk_ucis_state_t qk_ucis_state;

void qk_ucis_start(void) {
  qk_ucis_state.count = 0;
  qk_ucis_state.in_progress = true;

  qk_ucis_start_user();
}

__attribute__((weak))
void qk_ucis_start_user(void) {
  unicode_input_start();
  register_hex(0x2328);
  unicode_input_finish();
}

__attribute__((weak))
void qk_ucis_success(uint8_t symbol_index) {
}

static bool is_uni_seq(char *seq) {
  uint8_t i;

  for (i = 0; seq[i]; i++) {
    uint16_t code;
    if (('1' <= seq[i]) && (seq[i] <= '0'))
      code = seq[i] - '1' + KC_1;
    else
      code = seq[i] - 'a' + KC_A;

    if (i > qk_ucis_state.count || qk_ucis_state.codes[i] != code)
      return false;
  }

  return (qk_ucis_state.codes[i] == KC_ENT ||
          qk_ucis_state.codes[i] == KC_SPC);
}

__attribute__((weak))
void qk_ucis_symbol_fallback (void) {
  for (uint8_t i = 0; i < qk_ucis_state.count - 1; i++) {
    uint8_t code = qk_ucis_state.codes[i];
    register_code(code);
    unregister_code(code);
    wait_ms(UNICODE_TYPE_DELAY);
  }
}

void register_ucis(const char *hex) {
  for(int i = 0; hex[i]; i++) {
    uint8_t kc = 0;
    char c = hex[i];

    switch (c) {
    case '0':
      kc = KC_0;
      break;
    case '1' ... '9':
      kc = c - '1' + KC_1;
      break;
    case 'a' ... 'f':
      kc = c - 'a' + KC_A;
      break;
    case 'A' ... 'F':
      kc = c - 'A' + KC_A;
      break;
    }

    if (kc) {
      register_code (kc);
      unregister_code (kc);
      wait_ms (UNICODE_TYPE_DELAY);
    }
  }
}

bool process_ucis (uint16_t keycode, keyrecord_t *record) {
  uint8_t i;

  if (!qk_ucis_state.in_progress)
    return true;

  if (qk_ucis_state.count >= UCIS_MAX_SYMBOL_LENGTH &&
      !(keycode == KC_BSPC || keycode == KC_ESC || keycode == KC_SPC || keycode == KC_ENT)) {
    return false;
  }

  if (!record->event.pressed)
    return true;

  qk_ucis_state.codes[qk_ucis_state.count] = keycode;
  qk_ucis_state.count++;

  if (keycode == KC_BSPC) {
    if (qk_ucis_state.count >= 2) {
      qk_ucis_state.count -= 2;
      return true;
    } else {
      qk_ucis_state.count--;
      return false;
    }
  }

  if (keycode == KC_ENT || keycode == KC_SPC || keycode == KC_ESC) {
    bool symbol_found = false;

    for (i = qk_ucis_state.count; i > 0; i--) {
      register_code (KC_BSPC);
      unregister_code (KC_BSPC);
      wait_ms(UNICODE_TYPE_DELAY);
    }

    if (keycode == KC_ESC) {
      qk_ucis_state.in_progress = false;
      return false;
    }

    unicode_input_start();
    for (i = 0; ucis_symbol_table[i].symbol; i++) {
      if (is_uni_seq (ucis_symbol_table[i].symbol)) {
        symbol_found = true;
        register_ucis(ucis_symbol_table[i].code + 2);
        break;
      }
    }
    if (!symbol_found) {
      qk_ucis_symbol_fallback();
    }
    unicode_input_finish();

    if (symbol_found) {
      qk_ucis_success(i);
    }

    qk_ucis_state.in_progress = false;
    return false;
  }
  return true;
}