Kaleidoscope/src/key_events.cpp

#include "Kaleidoscope.h"


static bool handleSyntheticKeyswitchEvent(Key mappedKey, uint8_t keyState) {
  if (mappedKey.flags & RESERVED)
    return false;

  if (!(mappedKey.flags & SYNTHETIC))
    return false;

  if (mappedKey.flags & IS_INTERNAL) {
    return false;
  } else if (mappedKey.flags & IS_CONSUMER) {
    if (keyIsPressed(keyState)) {
    } else if (keyWasPressed(keyState)) {
      kaleidoscope::hid::pressConsumerControl(mappedKey);
      kaleidoscope::hid::releaseConsumerControl(mappedKey);
    }
  } else if (mappedKey.flags & IS_SYSCTL) {
    if (keyIsPressed(keyState)) {
    } else if (keyWasPressed(keyState)) {
      kaleidoscope::hid::pressSystemControl(mappedKey);
      kaleidoscope::hid::releaseSystemControl(mappedKey);
    }
  } else if (mappedKey.flags & SWITCH_TO_KEYMAP) {
    // Should not happen, handled elsewhere.
  }

  return true;
}

static bool handleKeyswitchEventDefault(Key mappedKey, byte row, byte col, uint8_t keyState) {
  //for every newly pressed button, figure out what logical key it is and send a key down event
  // for every newly released button, figure out what logical key it is and send a key up event

  if (mappedKey.flags & SYNTHETIC) {
    handleSyntheticKeyswitchEvent(mappedKey, keyState);
  } else if (keyIsPressed(keyState)) {
    kaleidoscope::hid::pressKey(mappedKey);
  } else if (keyToggledOff(keyState) && (keyState & INJECTED)) {
    kaleidoscope::hid::releaseKey(mappedKey);
  }
  return true;
}

void handleKeyswitchEvent(Key mappedKey, byte row, byte col, uint8_t keyState) {
  if (!(keyState & INJECTED)) {
    mappedKey = Layer.lookup(row, col);
  }

  /* If the key we are dealing with is masked, ignore it until it is released.
   * When releasing it, clear the mask, so future key events can be handled
   * appropriately.
   *
   * See layers.cpp for an example that masks keys, and the reason why it does
   * so.
   */
  if (KeyboardHardware.isKeyMasked(row, col)) {
    if (keyToggledOff(keyState)) {
      KeyboardHardware.unMaskKey(row, col);
    }
    return;
  }

  for (byte i = 0; Kaleidoscope.eventHandlers[i] != NULL && i < HOOK_MAX; i++) {
    Kaleidoscope_::eventHandlerHook handler = Kaleidoscope.eventHandlers[i];
    mappedKey = (*handler)(mappedKey, row, col, keyState);
    if (mappedKey.raw == Key_NoKey.raw)
      return;
  }
  mappedKey = Layer.eventHandler(mappedKey, row, col, keyState);
  if (mappedKey.raw == Key_NoKey.raw)
    return;
  handleKeyswitchEventDefault(mappedKey, row, col, keyState);
}