7 files changed, 265 insertions, 0 deletions

diff --git a/users/issmirnov/config.h b/users/issmirnov/config.h
new file mode 100644
index 000000000..664ebfe8a
--- /dev/null
+++ b/users/issmirnov/config.h
@@ -0,0 +1,45 @@
+#pragma once
+
+// Allows sending more than one key per scan. Useful for chords.
+#define QMK_KEYS_PER_SCAN 4
+
+// how long before a tap becomes a hold
+#undef TAPPING_TERM
+#define TAPPING_TERM 100
+
+// makes tap and hold keys work better for fast typers who don't want
+// tapping term set above 500
+#define PERMISSIVE_HOLD
+
+// tap anyway, even after TAPPING_TERM, if there was no other key
+// interruption between press and release
+#define RETRO_TAPPING
+
+// how many taps before triggering the toggle
+#undef ONESHOT_TAP_TOGGLE
+#define ONESHOT_TAP_TOGGLE 2
+
+// how long before oneshot modifier key times out (currently only shift)
+#undef ONESHOT_TIMEOUT
+#define ONESHOT_TIMEOUT 2000
+
+// Enable combos for vim
+#define COMBO_COUNT 5 // Specify the number of combos used. BE SURE TO INCREMENT AS NEEDED
+#define COMBO_TERM 50 // window in milliseconds to trigger combo
+
+// Allow more than 4 keys to be sent to the system. Useful for gaming.
+// #define FORCE_NKRO
+
+// Save 200 bytes on unused keycodes
+#undef LOCKING_SUPPORT_ENABLE
+#undef LOCKING_RESYNC_ENABLE
+
+// Enable HID_listen commands.
+#define NO_DEBUG
+#undef NO_PRINT
+#define USER_PRINT
+
+// Note: Defining the following does not have any impact on space:
+// - NO_ACTION_MACRO
+// - NO_ACTION_FUNCTION
+// - DISABLE_LEADER
diff --git a/users/issmirnov/issmirnov.c b/users/issmirnov/issmirnov.c
new file mode 100644
index 000000000..665afbcfd
--- /dev/null
+++ b/users/issmirnov/issmirnov.c
@@ -0,0 +1,43 @@
+#include "issmirnov.h"
+
+enum combo_events {
+  JK_ESC,
+  DF_CLN,
+  SD_SLASH,
+  XC_COPY,
+  XV_PASTE
+};
+
+
+const uint16_t PROGMEM jk_combo[] = {KC_J, KC_K, COMBO_END};
+const uint16_t PROGMEM df_combo[] = {KC_D, KC_F, COMBO_END};
+const uint16_t PROGMEM sd_combo[] = {KC_S, KC_D, COMBO_END};
+const uint16_t PROGMEM copy_combo[] = {KC_X, KC_C, COMBO_END};
+const uint16_t PROGMEM paste_combo[] = {KC_X, KC_V, COMBO_END};
+
+
+// BE SURE TO UPDATE THE CONFIG.H "COMBO_COUNT" value when you add elements here!
+combo_t key_combos[COMBO_COUNT] = {
+  COMBO(jk_combo, KC_ESC),
+  COMBO(df_combo, KC_COLON),
+  COMBO(sd_combo, KC_SLASH),
+  [XC_COPY] = COMBO_ACTION(copy_combo),
+  [XV_PASTE] = COMBO_ACTION(paste_combo),
+};
+
+
+void process_combo_event(uint8_t combo_index, bool pressed) {
+  switch(combo_index) {
+    case XC_COPY:
+      if (pressed) {
+        tap_code16(LCTL(KC_C));
+      }
+      break;
+
+    case XV_PASTE:
+      if (pressed) {
+        tap_code16(LCTL(KC_V));
+      }
+      break;
+  }
+}
diff --git a/users/issmirnov/issmirnov.h b/users/issmirnov/issmirnov.h
new file mode 100644
index 000000000..eef80dfc4
--- /dev/null
+++ b/users/issmirnov/issmirnov.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include QMK_KEYBOARD_H
+
+#include "rows.h"
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers
+enum {
+  _QWERTY = 0,
+  _SYMB,
+  _NUMP,
+  _OVERWATCH,
+  _NAVI
+};
+
+enum custom_keycodes {
+  PLACEHOLDER = SAFE_RANGE,
+  TAP_TOG_LAYER,
+  CLEAR_EEPROM,
+  WKSP_LEFT, // Smart key that only activates when we are momentarily in a layer
+  WKSP_RIGHT, // Smart key that only activates when we are momentarily in a layer
+};
+
+
+#define LOWER MO(_SYMB)
+#define RAISE MO(_NUMP)
+
+#define CTL_SPC MT(MOD_LCTL, KC_SPC)
+#define OSMSFT OSM(MOD_LSFT)
+#define LOCK LGUI(KC_L)
+#define MODSFT LSFT(KC_LGUI)
+#define APPS LGUI(KC_SPC)
diff --git a/users/issmirnov/rows.h b/users/issmirnov/rows.h
new file mode 100644
index 000000000..d35af2175
--- /dev/null
+++ b/users/issmirnov/rows.h
@@ -0,0 +1,55 @@
+#pragma once
+
+#include QMK_KEYBOARD_H
+
+// This wrapper is required in order to expand the row macro inside the keymap configs.
+#define LAYOUT_ergodox_wrapper(...)          LAYOUT_ergodox(__VA_ARGS__)
+#define LAYOUT_ortho_4x12_wrapper(...)          LAYOUT_ortho_4x12(__VA_ARGS__)
+
+// Share common config. We'll skip the mod rows and func rows.
+// Note, it's also really neat the way the scoping works. Since we perform the expansion in the keymap.c file
+// so we can use our enums for custom keycodes
+#define _________________QWERTY_L1_________________        KC_Q , KC_W , KC_E   , KC_R     , KC_T
+#define _________________QWERTY_L2_________________        KC_A , KC_S , KC_D   , KC_F     , KC_G
+#define _________________QWERTY_L3_________________        KC_Z , KC_X , KC_C   , KC_V     , KC_B
+
+#define _________________QWERTY_R1_________________        KC_Y , KC_U , KC_I   , KC_O     , KC_P
+#define _________________QWERTY_R2_________________        KC_H , KC_J , KC_K   , KC_L     , TAP_TOG_LAYER
+#define _________________QWERTY_R3_________________        KC_N , KC_M , KC_DOT , KC_COMMA , TG(_NUMP)
+
+#define ___________________BLANK___________________        _______ , _______ , _______ , _______ , _______
+#define ___________________XXXXX___________________        XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX
+
+#define _________________SYMB_L1___________________        KC_MINS , KC_AT   , KC_LCBR     , KC_RCBR     , KC_GRV
+#define _________________SYMB_L2___________________        KC_CIRC , KC_UNDS , KC_LPRN     , KC_RPRN     , KC_DLR
+#define _________________SYMB_L3___________________        KC_LABK , KC_RABK , KC_LBRACKET , KC_RBRACKET , KC_TILD
+
+#define _________________SYMB_R1___________________        KC_ASTR , KC_EXLM , KC_PIPE     , KC_PERC     , KC_PLUS
+#define _________________SYMB_R2___________________        KC_HASH , KC_EQL  , KC_COLN     , KC_SCLN     , TAP_TOG_LAYER
+#define _________________SYMB_R3___________________        KC_AMPR , KC_QUES , KC_SLASH    , KC_BSLASH   , TG(_NUMP)
+
+
+#define _________________NUMP_L1___________________        KC_NO   , KC_NO         , LGUI(KC_UP)   , XXXXXXX             , XXXXXXX
+#define _________________NUMP_L2___________________        XXXXXXX , LGUI(KC_LEFT) , LGUI(KC_DOWN) , LGUI(KC_RIGHT)      , XXXXXXX
+#define _________________NUMP_L3___________________        XXXXXXX , XXXXXXX       , XXXXXXX       , KC_AUDIO_VOL_DOWN   , KC_AUDIO_VOL_UP
+
+#define _________________NUMP_R1___________________        KC_COMM , KC_7          , KC_8          , KC_9                , XXXXXXX
+#define _________________NUMP_R2___________________        KC_0    , KC_4          , KC_5          , KC_6                , TO(_SYMB)
+#define _________________NUMP_R3___________________        KC_DOT  , KC_1          , KC_2          , KC_3                , TO(_QWERTY)
+
+// Note: These are 6x1 blocks, since modifiers are also adjusted.
+#define ______________OVERWATCH_L1_________________       KC_TAB    , KC_Q  , KC_W       , KC_E , KC_R , KC_T
+#define ______________OVERWATCH_L2_________________       KC_LCTL   , KC_A  , KC_S       , KC_D , KC_F , KC_P
+#define ______________OVERWATCH_L3_________________       KC_LSHIFT , KC_Z  , KC_X       , KC_C , KC_V , KC_GRAVE
+// Ergodox only has 5 keys on bottom row:
+#define ______________OVERWATCH_L4_________________       KC_LCTL   , KC_F9 , KC_PSCREEN , KC_H , KC_R
+
+
+
+#define _________________NAVI_L1___________________        XXXXXXX , XXXXXXX , KC_UP   , XXXXXXX , XXXXXXX
+#define _________________NAVI_L2___________________        XXXXXXX , KC_LEFT , KC_DOWN , KC_RGHT , XXXXXXX
+#define _________________NAVI_L3___________________        XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX
+
+#define _________________NAVI_R1___________________        XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX
+#define _________________NAVI_R2___________________        XXXXXXX , KC_LCTL , XXXXXXX , XXXXXXX , XXXXXXX
+#define _________________NAVI_R3___________________        XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX , XXXXXXX
diff --git a/users/issmirnov/rules.mk b/users/issmirnov/rules.mk
new file mode 100644
index 000000000..096d7b4c0
--- /dev/null
+++ b/users/issmirnov/rules.mk
@@ -0,0 +1,25 @@
+
+SRC += tap_tog.c
+SRC += issmirnov.c
+
+# https://www.reddit.com/r/olkb/comments/bmpgjm/programming_help/
+# Should shave 2000 bytes
+LINK_TIME_OPTIMIZATION_ENABLE = yes
+
+# Enable debugging only when needed.
+CONSOLE_ENABLE = yes # +400 bytes (hid_listen support)
+
+# Enable combo keys for vim usage.
+# https://github.com/qmk/qmk_firmware/blob/master/docs/feature_combo.md
+COMBO_ENABLE = yes
+
+# This allows the keyboard to tell the host OS that up to 248 keys are held down at once
+NKRO_ENABLE = no # note: also needs FORCE_NKRO in config.h
+
+# Disable unused features to save on space
+# https://thomasbaart.nl/2018/12/01/reducing-firmware-size-in-qmk/
+MOUSEKEY_ENABLE   = no # 2000 bytes
+BOOTMAGIC_ENABLE  = no
+COMMAND_ENABLE    = no # https://beta.docs.qmk.fm/features/feature_command
+UNICODE_ENABLE    = no  # Unicode
+SWAP_HANDS_ENABLE = no  # Allow swapping hands of keyboard
diff --git a/users/issmirnov/tap_tog.c b/users/issmirnov/tap_tog.c
new file mode 100644
index 000000000..02cea08b1
--- /dev/null
+++ b/users/issmirnov/tap_tog.c
@@ -0,0 +1,52 @@
+#include QMK_KEYBOARD_H
+
+#include "tap_tog.h"
+
+bool tap_tog_layer_other_key_pressed = false;
+bool tap_tog_layer_toggled_on = false;
+uint8_t tap_tog_count = 0;
+
+void process_tap_tog(uint8_t layer, keyrecord_t *record) {
+  tap_tog_count++;
+  // press
+  if (record->event.pressed) {
+
+    // TTL has already been pressed and we are toggled into that layer
+    // so now we need to leave
+    if(tap_tog_layer_toggled_on) {
+      layer_clear();
+      tap_tog_layer_toggled_on = false;
+    }
+
+    // this means we're in our default layer
+    // so switch the layer immediately
+    // whether we'll switch back when it's released depends on if a button gets pressed while this is held down
+    else {
+      // switch layer
+      layer_on(layer);
+      tap_tog_layer_other_key_pressed = false; // if this becomes true before it gets released, it will act as a held modifier
+    }
+  }
+
+  // release
+  else {
+    // if it was used as a held modifier (like traditional shift)
+    if(tap_tog_layer_other_key_pressed) {
+      // switch layer back
+      layer_clear();
+    }
+    // if it was used as a toggle button
+    else {
+      // next time, it will turn layer off
+      tap_tog_layer_toggled_on = true;
+
+      // If it's been tapped twice, reset the toggle flag.
+      // Otherwise, we get stuck oscillating between this code block and the
+      // pressed && TTL_toggled_on block.
+      if (tap_tog_count >= 4 ) {
+        tap_tog_count = 0;
+        tap_tog_layer_toggled_on = false;
+      }
+    }
+  }
+}
diff --git a/users/issmirnov/tap_tog.h b/users/issmirnov/tap_tog.h
new file mode 100644
index 000000000..f59711f04
--- /dev/null
+++ b/users/issmirnov/tap_tog.h
@@ -0,0 +1,10 @@
+#pragma once
+
+#include "issmirnov.h"
+
+extern bool tap_tog_layer_other_key_pressed; // set to true if any key pressed while TAP_TOG_LAYER held down
+extern bool tap_tog_layer_toggled_on; // will become true if no keys are pressed while TTL held down
+extern uint8_t tap_tog_count; // number of presses on TAP_TOG_LAYER button.
+
+// Tap dance analog with momentary toggle when held, switch when tapped
+void process_tap_tog(uint8_t layer, keyrecord_t *record);