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-rw-r--r--users/haervig/haervig.c234
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diff --git a/users/haervig/haervig.c b/users/haervig/haervig.c
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+/*
+Copyright 2021 Jakob Hærvig <jakob.haervig@gmail.com>
+
+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 "haervig.h"
+
+#ifdef DANISH_ENABLE
+// These indicate if left and right shift are physically pressed
+bool lshift = false;
+bool rshift = false;
+
+// Interrupt and times for space cadet shift
+bool lshiftp = false;
+bool rshiftp = false;
+uint16_t lshift_timer = 0;
+uint16_t rshift_timer = 0;
+
+// Number of items that are saved in prev_kcs
+uint8_t prev_indx = 0;
+// Used to save the last 6 actual keycodes activated by frankenkeycodes
+uint16_t prev_kcs[6] = {0, 0, 0, 0, 0, 0};
+
+// If true the deadkey characters grave and circonflexe are not automatically escaped
+bool esct = false;
+
+/*
+Used to add a keycode to a prev_kcs to remember it.
+When full the last code gets discarded and replaced by
+the new one.
+*/
+void add_to_prev(uint16_t kc){
+ for (int i=0; i<prev_indx; i++){
+ if (kc == prev_kcs[i])
+ return;
+ }
+ if (prev_indx == 6){
+ for (int i=5; i>0; i--){
+ prev_kcs[i] = prev_kcs[i-1];
+ }
+ prev_kcs[0] = kc;
+ } else {
+ prev_kcs[prev_indx] = kc;
+ prev_indx++;
+ }
+}
+
+/*
+Unregisters all codes saved in prev_kcs and resets prev_indx.
+gets called on multiple occasions mainly when shift is released
+and when frankenkeycodes are pressed. Prevents output of
+wrong characters when really specific key combinations
+that would never occur during normal usage are pressed.
+*/
+void unreg_prev(void){
+ if (prev_indx == 0)
+ return;
+ for (int i=0; i<prev_indx; i++){
+ unregister_code(prev_kcs[i]);
+ }
+ prev_indx = 0;
+}
+#endif
+
+// Interrupt and times for Nav/Esc
+bool navesc = false;
+uint16_t navesc_timer = 0;
+
+// Interrupts all timers
+void timer_timeout(void){
+ #ifdef DANISH_ENABLE
+ lshiftp = false;
+ rshiftp = false;
+ #endif
+ navesc = false;
+ timer_timeout_keymap();
+}
+
+__attribute__((weak))
+void timer_timeout_keymap(void){
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case KC_LGUI:
+ case KC_RGUI:
+ if (record->event.pressed)
+ timer_timeout();
+ return true;
+ case CU_NAV:
+ if(record->event.pressed) {
+ navesc = true;
+ navesc_timer = timer_read();
+ layer_on(_NAV);
+ } else {
+ if (timer_elapsed(navesc_timer) < TAPPING_TERM && navesc) {
+ tap_code(KC_ESC);
+ }
+ layer_off(_NAV);
+ }
+ return false;
+
+ #ifdef DANISH_ENABLE
+ case CU_LSFT:
+ if(record->event.pressed) {
+ lshiftp = true;
+ lshift_timer = timer_read();
+ unregister_code(KC_LSFT);
+ register_code(KC_LSFT);
+ lshift = true;
+ } else {
+ if (timer_elapsed(lshift_timer) < TAPPING_TERM && lshiftp) {
+ register_code(KC_LSFT);
+ tap_code(KC_8);
+ unregister_code(KC_LSFT);
+ }
+ unreg_prev();
+ if (!rshift)
+ unregister_code(KC_LSFT);
+ lshift = false;
+ }
+ return false;
+ case CU_RSFT:
+ if(record->event.pressed) {
+ rshiftp = true;
+ rshift_timer = timer_read();
+ unregister_code(KC_LSFT);
+ register_code(KC_LSFT);
+ rshift = true;
+ } else {
+ if (timer_elapsed(rshift_timer) < TAPPING_TERM && rshiftp) {
+ register_code(KC_LSFT);
+ tap_code(KC_9);
+ unregister_code(KC_LSFT);
+ }
+ unreg_prev();
+ if (!lshift)
+ unregister_code(KC_LSFT);
+ rshift = false;
+ }
+ return false;
+ case CU_COMM:
+ SHIFT_NO(DK_COMM, KC_GRV)
+ case CU_DOT:
+ SHIFT_NORM(DK_DOT, KC_GRV)
+ case CU_SLSH:
+ SHIFT_ALL(DK_7, KC_MINS)
+ case CU_SCLN:
+ SHIFT_ALL(DK_COMM, DK_DOT)
+ case CU_QUOT:
+ SHIFT_NORM(DK_QUOT, DK_2)
+ case CU_2:
+ NORM_ALGR(DK_2, KC_NUHS)
+ case CU_4:
+ if (record->event.pressed) { \
+ timer_timeout(); \
+ if (lshift || rshift) { \
+ register_code(KC_LSFT); \
+ register_code(KC_ALGR); \
+ unregister_code(KC_3); \
+ tap_code(KC_3); \
+ unregister_code(KC_3); \
+ } else { \
+ unregister_code(KC_4); \
+ tap_code(KC_4); \
+ } \
+ unregister_code(KC_ALGR); \
+ unregister_code(KC_LSFT); \
+ } \
+ return false;
+ case CU_6:
+ SHIFT_NORM(DK_6, KC_RBRC)
+ case CU_7:
+ SHIFT_NORM(DK_7, DK_6)
+ case CU_8:
+ SHIFT_NORM(DK_8, KC_NUHS)
+ case CU_9:
+ SHIFT_NORM(DK_9, DK_8)
+ case CU_0:
+ SHIFT_NORM(DK_0, DK_9)
+ case CU_MINS:
+ SHIFT_NORM(KC_SLSH, KC_SLSH)
+ case CU_EQL:
+ SHIFT_SWITCH(DK_0, DK_PLUS)
+ case CU_BSPC:
+ SHIFT_NO(KC_BSPC, KC_DEL)
+ case CU_LBRC:
+ NORM_ALGRSHIFT(DK_8, DK_8)
+ case CU_RBRC:
+ NORM_ALGRSHIFT(DK_9, DK_9)
+ case CU_BSLS:
+ ALGR_SWITCH(DK_7, DK_I)
+ case KC_LCTL:
+ case KC_RCTL:
+ if(!record->event.pressed) {
+ timer_timeout();
+ unregister_code(KC_Z);
+ unregister_code(KC_Y);
+ }
+ return true;
+ #endif
+
+ default:
+ if(record->event.pressed) {
+ timer_timeout();
+
+ #ifdef DANISH_ENABLE
+ if (lshift || rshift)
+ register_code(KC_LSFT);
+ else
+ unregister_code(KC_LSFT);
+ #endif
+
+ }
+ return process_record_keymap(keycode, record);
+ }
+}
+
+__attribute__((weak))
+bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
+ return true;
+}