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- #include <stdint.h>
- #include "keyboard.h"
- #include "action.h"
- #include "util.h"
- #include "action_layer.h"
-
- #ifdef DEBUG_ACTION
- #include "debug.h"
- #else
- #include "nodebug.h"
- #endif
-
-
- /*
- * Default Layer State
- */
- uint32_t default_layer_state = 0;
-
- static void default_layer_state_set(uint32_t state)
- {
- debug("default_layer_state: ");
- default_layer_debug(); debug(" to ");
- default_layer_state = state;
- default_layer_debug(); debug("\n");
- clear_keyboard_but_mods(); // To avoid stuck keys
- }
-
- void default_layer_debug(void)
- {
- dprintf("%08lX(%u)", default_layer_state, biton32(default_layer_state));
- }
-
- void default_layer_set(uint32_t state)
- {
- default_layer_state_set(state);
- }
-
- #ifndef NO_ACTION_LAYER
- void default_layer_or(uint32_t state)
- {
- default_layer_state_set(default_layer_state | state);
- }
- void default_layer_and(uint32_t state)
- {
- default_layer_state_set(default_layer_state & state);
- }
- void default_layer_xor(uint32_t state)
- {
- default_layer_state_set(default_layer_state ^ state);
- }
- #endif
-
-
- #ifndef NO_ACTION_LAYER
- /*
- * Keymap Layer State
- */
- uint32_t layer_state = 0;
-
- static void layer_state_set(uint32_t state)
- {
- dprint("layer_state: ");
- layer_debug(); dprint(" to ");
- layer_state = state;
- layer_debug(); dprintln();
- clear_keyboard_but_mods(); // To avoid stuck keys
- }
-
- void layer_clear(void)
- {
- layer_state_set(0);
- }
-
- void layer_move(uint8_t layer)
- {
- layer_state_set(1UL<<layer);
- }
-
- void layer_on(uint8_t layer)
- {
- layer_state_set(layer_state | (1UL<<layer));
- }
-
- void layer_off(uint8_t layer)
- {
- layer_state_set(layer_state & ~(1UL<<layer));
- }
-
- void layer_invert(uint8_t layer)
- {
- layer_state_set(layer_state ^ (1UL<<layer));
- }
-
- void layer_or(uint32_t state)
- {
- layer_state_set(layer_state | state);
- }
- void layer_and(uint32_t state)
- {
- layer_state_set(layer_state & state);
- }
- void layer_xor(uint32_t state)
- {
- layer_state_set(layer_state ^ state);
- }
-
- void layer_debug(void)
- {
- dprintf("%08lX(%u)", layer_state, biton32(layer_state));
- }
- #endif
-
- #if !defined(NO_ACTION_LAYER) && defined(PREVENT_STUCK_MODIFIERS)
- uint8_t source_layers_cache[(MATRIX_ROWS * MATRIX_COLS + 7) / 8][MAX_LAYER_BITS] = {0};
-
- void update_source_layers_cache(keypos_t key, uint8_t layer)
- {
- const uint8_t key_number = key.col + (key.row * MATRIX_COLS);
- const uint8_t storage_row = key_number / 8;
- const uint8_t storage_bit = key_number % 8;
-
- for (uint8_t bit_number = 0; bit_number < MAX_LAYER_BITS; bit_number++) {
- source_layers_cache[storage_row][bit_number] ^=
- (-((layer & (1U << bit_number)) != 0)
- ^ source_layers_cache[storage_row][bit_number])
- & (1U << storage_bit);
- }
- }
-
- uint8_t read_source_layers_cache(keypos_t key)
- {
- const uint8_t key_number = key.col + (key.row * MATRIX_COLS);
- const uint8_t storage_row = key_number / 8;
- const uint8_t storage_bit = key_number % 8;
- uint8_t layer = 0;
-
- for (uint8_t bit_number = 0; bit_number < MAX_LAYER_BITS; bit_number++) {
- layer |=
- ((source_layers_cache[storage_row][bit_number]
- & (1U << storage_bit)) != 0)
- << bit_number;
- }
-
- return layer;
- }
- #endif
-
- /*
- * Make sure the action triggered when the key is released is the same
- * one as the one triggered on press. It's important for the mod keys
- * when the layer is switched after the down event but before the up
- * event as they may get stuck otherwise.
- */
- action_t store_or_get_action(bool pressed, keypos_t key)
- {
- #if !defined(NO_ACTION_LAYER) && defined(PREVENT_STUCK_MODIFIERS)
- if (disable_action_cache) {
- return layer_switch_get_action(key);
- }
-
- uint8_t layer;
-
- if (pressed) {
- layer = layer_switch_get_layer(key);
- update_source_layers_cache(key, layer);
- }
- else {
- layer = read_source_layers_cache(key);
- }
- return action_for_key(layer, key);
- #else
- return layer_switch_get_action(key);
- #endif
- }
-
-
- int8_t layer_switch_get_layer(keypos_t key)
- {
- action_t action;
- action.code = ACTION_TRANSPARENT;
-
- #ifndef NO_ACTION_LAYER
- uint32_t layers = layer_state | default_layer_state;
- /* check top layer first */
- for (int8_t i = 31; i >= 0; i--) {
- if (layers & (1UL<<i)) {
- action = action_for_key(i, key);
- if (action.code != ACTION_TRANSPARENT) {
- return i;
- }
- }
- }
- /* fall back to layer 0 */
- return 0;
- #else
- return biton32(default_layer_state);
- #endif
- }
-
- action_t layer_switch_get_action(keypos_t key)
- {
- return action_for_key(layer_switch_get_layer(key), key);
- }
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