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Merge pull request #1283 from TerryMathews/master
[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 #include "process_leader.h"
18
19 __attribute__ ((weak))
20 void leader_start(void) {}
21
22 __attribute__ ((weak))
23 void leader_end(void) {}
24
25 // Leader key stuff
26 bool leading = false;
27 uint16_t leader_time = 0;
28
29 uint16_t leader_sequence[5] = {0, 0, 0, 0, 0};
30 uint8_t leader_sequence_size = 0;
31
32 bool process_leader(uint16_t keycode, keyrecord_t *record) {
33   // Leader key set-up
34   if (record->event.pressed) {
35     if (!leading && keycode == KC_LEAD) {
36       leader_start();
37       leading = true;
38       leader_time = timer_read();
39       leader_sequence_size = 0;
40       leader_sequence[0] = 0;
41       leader_sequence[1] = 0;
42       leader_sequence[2] = 0;
43       leader_sequence[3] = 0;
44       leader_sequence[4] = 0;
45       return false;
46     }
47     if (leading && timer_elapsed(leader_time) < LEADER_TIMEOUT) {
48       leader_sequence[leader_sequence_size] = keycode;
49       leader_sequence_size++;
50       return false;
51     }
52   }
53   return true;
54 }