tmk_core/common/action_layer.c

   1 #include <stdint.h>
   2 #include "keyboard.h"
   3 #include "action.h"
   4 #include "util.h"
   5 #include "action_layer.h"
   6 #include "hook.h"
   7
   8 #ifdef DEBUG_ACTION
   9 #include "debug.h"
  10 #else
  11 #include "nodebug.h"
  12 #endif
  13
  14
  15 /*
  16  * Default Layer State
  17  */
  18 uint32_t default_layer_state = 0;
  19
  20 static void default_layer_state_set(uint32_t state)
  21 {
  22     debug("default_layer_state: ");
  23     default_layer_debug(); debug(" to ");
  24     default_layer_state = state;
  25     hook_default_layer_change(default_layer_state);
  26     default_layer_debug(); debug("\n");
  27 #ifdef NO_TRACK_KEY_PRESS
  28     clear_keyboard_but_mods(); // To avoid stuck keys
  29 #endif
  30 }
  31
  32 void default_layer_debug(void)
  33 {
  34     dprintf("%08lX(%u)", default_layer_state, biton32(default_layer_state));
  35 }
  36
  37 void default_layer_set(uint32_t state)
  38 {
  39     default_layer_state_set(state);
  40 }
  41
  42 #ifndef NO_ACTION_LAYER
  43 void default_layer_or(uint32_t state)
  44 {
  45     default_layer_state_set(default_layer_state | state);
  46 }
  47 void default_layer_and(uint32_t state)
  48 {
  49     default_layer_state_set(default_layer_state & state);
  50 }
  51 void default_layer_xor(uint32_t state)
  52 {
  53     default_layer_state_set(default_layer_state ^ state);
  54 }
  55 #endif
  56
  57
  58 #ifndef NO_ACTION_LAYER
  59 /*
  60  * Keymap Layer State
  61  */
  62 uint32_t layer_state = 0;
  63
  64 static void layer_state_set(uint32_t state)
  65 {
  66     dprint("layer_state: ");
  67     layer_debug(); dprint(" to ");
  68     layer_state = state;
  69     hook_layer_change(layer_state);
  70     layer_debug(); dprintln();
  71 #ifdef NO_TRACK_KEY_PRESS
  72     clear_keyboard_but_mods(); // To avoid stuck keys
  73 #endif
  74 }
  75
  76 void layer_clear(void)
  77 {
  78     layer_state_set(0);
  79 }
  80
  81 void layer_move(uint8_t layer)
  82 {
  83     layer_state_set(1UL<<layer);
  84 }
  85
  86 void layer_on(uint8_t layer)
  87 {
  88     layer_state_set(layer_state | (1UL<<layer));
  89 }
  90
  91 void layer_off(uint8_t layer)
  92 {
  93     layer_state_set(layer_state & ~(1UL<<layer));
  94 }
  95
  96 void layer_invert(uint8_t layer)
  97 {
  98     layer_state_set(layer_state ^ (1UL<<layer));
  99 }
 100
 101 void layer_or(uint32_t state)
 102 {
 103     layer_state_set(layer_state | state);
 104 }
 105 void layer_and(uint32_t state)
 106 {
 107     layer_state_set(layer_state & state);
 108 }
 109 void layer_xor(uint32_t state)
 110 {
 111     layer_state_set(layer_state ^ state);
 112 }
 113
 114 void layer_debug(void)
 115 {
 116     dprintf("%08lX(%u)", layer_state, biton32(layer_state));
 117 }
 118 #endif
 119
 120
 121
 122 /* return layer effective for key at this time */
 123 static uint8_t current_layer_for_key(keypos_t key)
 124 {
 125 #ifndef NO_ACTION_LAYER
 126     action_t action = ACTION_TRANSPARENT;
 127     uint32_t layers = layer_state | default_layer_state;
 128     /* check top layer first */
 129     for (int8_t i = 31; i >= 0; i--) {
 130         if (layers & (1UL<<i)) {
 131             action = action_for_key(i, key);
 132             if (action.code != (action_t)ACTION_TRANSPARENT.code) {
 133                 return i;
 134             }
 135         }
 136     }
 137     /* fall back to layer 0 */
 138     return 0;
 139 #else
 140     return biton32(default_layer_state);
 141 #endif
 142 }
 143
 144
 145 #ifndef NO_TRACK_KEY_PRESS
 146 /* record layer on where key is pressed */
 147 static uint8_t layer_pressed[MATRIX_ROWS][MATRIX_COLS] = {};
 148 #endif
 149 action_t layer_switch_get_action(keyevent_t event)
 150 {
 151     if (IS_NOEVENT(event)) return (action_t)ACTION_NO;
 152
 153     uint8_t layer = 0;
 154 #ifndef NO_TRACK_KEY_PRESS
 155     if (event.pressed) {
 156         layer = current_layer_for_key(event.key);
 157         layer_pressed[event.key.row][event.key.col] = layer;
 158     } else {
 159         layer = layer_pressed[event.key.row][event.key.col];
 160     }
 161 #else
 162     layer = current_layer_for_key(event.key);
 163 #endif
 164     return action_for_key(layer, event.key);
 165 }