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Make `PREVENT_STUCK_MODIFIERS` the default (#3107)
[qmk_firmware.git] / quantum / process_keycode / process_leader.c
1 /* Copyright 2016 Jack Humbert
2  *
3  * This program is free software: you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License as published by
5  * the Free Software Foundation, either version 2 of the License, or
6  * (at your option) any later version.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
15  */
16
17 #ifdef LEADER_ENABLE
18
19 #include "process_leader.h"
20
21 #ifndef LEADER_TIMEOUT
22   #define LEADER_TIMEOUT 300
23 #endif
24
25 __attribute__ ((weak))
26 void leader_start(void) {}
27
28 __attribute__ ((weak))
29 void leader_end(void) {}
30
31 // Leader key stuff
32 bool leading = false;
33 uint16_t leader_time = 0;
34
35 uint16_t leader_sequence[5] = {0, 0, 0, 0, 0};
36 uint8_t leader_sequence_size = 0;
37
38 bool process_leader(uint16_t keycode, keyrecord_t *record) {
39   // Leader key set-up
40   if (record->event.pressed) {
41     if (!leading && keycode == KC_LEAD) {
42       leader_start();
43       leading = true;
44       leader_time = timer_read();
45       leader_sequence_size = 0;
46       leader_sequence[0] = 0;
47       leader_sequence[1] = 0;
48       leader_sequence[2] = 0;
49       leader_sequence[3] = 0;
50       leader_sequence[4] = 0;
51       return false;
52     }
53     if (leading && timer_elapsed(leader_time) < LEADER_TIMEOUT) {
54       leader_sequence[leader_sequence_size] = keycode;
55       leader_sequence_size++;
56       return false;
57     }
58   }
59   return true;
60 }
61
62 #endif