diff options
Diffstat (limited to 'tmk_core/common/action.c')
-rw-r--r-- | tmk_core/common/action.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/tmk_core/common/action.c b/tmk_core/common/action.c index 2ccc0e0b94..20e1fc6149 100644 --- a/tmk_core/common/action.c +++ b/tmk_core/common/action.c @@ -53,6 +53,63 @@ void action_exec(keyevent_t event) #endif } +#if !defined(NO_ACTION_LAYER) && defined(PREVENT_STUCK_MODIFIERS) +bool disable_action_cache = false; +uint8_t source_layers_cache[5][(MATRIX_ROWS * MATRIX_COLS + 7) / 8] = {0}; + +void process_action_nocache(keyrecord_t *record) +{ + disable_action_cache = true; + process_action(record); + disable_action_cache = false; +} +#else +void process_action_nocache(keyrecord_t *record) +{ + process_action(record); +} +#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); + } + 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; + if (pressed) { + layer = layer_switch_get_layer(key); + for (uint8_t bit_number = 0; bit_number < 5; bit_number++) { + source_layers_cache[bit_number][storage_row] ^= + (-((layer & (1U << bit_number)) != 0) + ^ source_layers_cache[bit_number][storage_row]) + & (1U << storage_bit); + } + } + else { + layer = 0; + for (uint8_t bit_number = 0; bit_number < 5; bit_number++) { + layer |= + ((source_layers_cache[bit_number][storage_row] + & (1U << storage_bit)) != 0) + << bit_number; + } + } + return action_for_key(layer, key); +#else + return layer_switch_get_action(key); +#endif +} + __attribute__ ((weak)) void process_action_kb(keyrecord_t *record) {} @@ -67,7 +124,7 @@ void process_action(keyrecord_t *record) process_action_kb(record); - action_t action = layer_switch_get_action(event.key); + action_t action = store_or_get_action(event.pressed, event.key); dprint("ACTION: "); debug_action(action); #ifndef NO_ACTION_LAYER dprint(" layer_state: "); layer_debug(); |