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- #include "keymap_skel.h"
- #include "usb_keyboard.h"
- #include "debug.h"
- #include "timer.h"
- #include "layer.h"
-
- /*
- * LAYER_ENTER_DELAY: prevent from moving new layer
- * press release
- * Fn key sate ____|~~~~~~~~~~~~~~~~~~~|_______________
- *
- * enter_delay |======|
- * new layer
- * Layer sw ___________|~~~~~~~~~~~~|_______________
- */
- #define LAYER_ENTER_DELAY 10
-
- /*
- * LAYER_SEND_FN_TERM: send keycode if release key in this term
- * press release(send)
- * Fn key state ____|~~~~~~~~~~~~~|_______________
- * press | release(not send)
- * Fn key state ____|~~~~~~~~~~~~~|~~~~~~|__________
- * | |
- * send_fn_term |=============o==| x
- */
- #define LAYER_SEND_FN_TERM 30
-
-
- static uint8_t current_layer = 0;
- static bool layer_used = false;
-
-
- uint8_t layer_get_keycode(uint8_t row, uint8_t col)
- {
- uint8_t code = keymap_get_keycode(current_layer, row, col);
- // normal key or mouse key
- if ((IS_KEY(code) || IS_MOUSE(code)))
- layer_used = true;
- return code;
- }
-
- void layer_switching(uint8_t fn_bits)
- {
- // layer switching
- static uint8_t last_bits = 0;
- static uint8_t last_mod = 0;
- static uint16_t last_timer = 0;
-
- //uint16_t now_timer;
-
- if (fn_bits == last_bits) {
- // switch layer when specific time elapsed
- if (current_layer != keymap_fn_layer(fn_bits) &&
- timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
- current_layer = keymap_fn_layer(fn_bits);
- debug("time_elapsed: "); debug_hex16(timer_elapsed(last_timer)); debug("\n");
- debug("switch layer: "); debug_hex(current_layer); debug("\n");
- }
- } else if (fn_bits == 0) {
- // send key when Fn key is released without using the layer and within specific time
- if ((!layer_used || current_layer != keymap_fn_layer(last_bits)) &&
- timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
- uint8_t code = keymap_fn_keycode(last_bits);
- if (code != KB_NO) {
- if (IS_MOD(code)) {
- keyboard_modifier_keys = last_mod | MOD_BIT(code);
- } else {
- keyboard_keys[0] = code;
- keyboard_modifier_keys = last_mod;
- }
- usb_keyboard_send();
- usb_keyboard_print();
- usb_keyboard_clear();
- }
- }
- last_bits = 0;
- last_mod = 0;
- layer_used = false;
- current_layer = 0; // default layer
- } else if ((fn_bits & (fn_bits - 1)) == 0) {
- // switch layer when just one Fn Key is pressed
- if (!usb_keyboard_has_key()) {
- last_bits = fn_bits;
- last_mod = keyboard_modifier_keys;
- last_timer = timer_read();
- debug("last_bits: "); debug_bin(last_bits); debug("\n");
- debug("last_mod: "); debug_hex(last_mod); debug("\n");
- debug("last_timer: "); debug_hex16(last_timer); debug("\n");
- }
- }
- }
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