qmk

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process_leader.c (2457B)


      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 #    include <string.h>
     21 
     22 #    ifndef LEADER_TIMEOUT
     23 #        define LEADER_TIMEOUT 300
     24 #    endif
     25 
     26 __attribute__((weak)) void leader_start(void) {}
     27 
     28 __attribute__((weak)) void leader_end(void) {}
     29 
     30 // Leader key stuff
     31 bool     leading     = false;
     32 uint16_t leader_time = 0;
     33 
     34 uint16_t leader_sequence[5]   = {0, 0, 0, 0, 0};
     35 uint8_t  leader_sequence_size = 0;
     36 
     37 void qk_leader_start(void) {
     38     if (leading) {
     39         return;
     40     }
     41     leader_start();
     42     leading              = true;
     43     leader_time          = timer_read();
     44     leader_sequence_size = 0;
     45     memset(leader_sequence, 0, sizeof(leader_sequence));
     46 }
     47 
     48 bool process_leader(uint16_t keycode, keyrecord_t *record) {
     49     // Leader key set-up
     50     if (record->event.pressed) {
     51         if (leading) {
     52             if (timer_elapsed(leader_time) < LEADER_TIMEOUT) {
     53 #    ifndef LEADER_KEY_STRICT_KEY_PROCESSING
     54                 if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) || (keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX)) {
     55                     keycode = keycode & 0xFF;
     56                 }
     57 #    endif  // LEADER_KEY_STRICT_KEY_PROCESSING
     58                 if (leader_sequence_size < (sizeof(leader_sequence) / sizeof(leader_sequence[0]))) {
     59                     leader_sequence[leader_sequence_size] = keycode;
     60                     leader_sequence_size++;
     61                 } else {
     62                     leading = false;
     63                     leader_end();
     64                 }
     65 #    ifdef LEADER_PER_KEY_TIMING
     66                 leader_time = timer_read();
     67 #    endif
     68                 return false;
     69             }
     70         } else {
     71             if (keycode == KC_LEAD) {
     72                 qk_leader_start();
     73             }
     74         }
     75     }
     76     return true;
     77 }
     78 
     79 #endif