1 files changed, 130 insertions, 0 deletions
diff --git a/users/callum/callum.c b/users/callum/callum.c
new file mode 100644
index 0000000000..4661902af5
--- /dev/null
+++ b/users/callum/callum.c
@@ -0,0 +1,130 @@
+#include QMK_KEYBOARD_H
+
+#include "oneshot.h"
+#include "swapper.h"
+
+#define HOME G(KC_LEFT)
+#define END G(KC_RGHT)
+#define FWD G(KC_RBRC)
+#define BACK G(KC_LBRC)
+#define TABL G(S(KC_LBRC))
+#define TABR G(S(KC_RBRC))
+#define SPCL A(G(KC_LEFT))
+#define SPCR A(G(KC_RGHT))
+#define LA_SYM MO(SYM)
+#define LA_NAV MO(NAV)
+
+enum layers {
+    DEF,
+    SYM,
+    NAV,
+    NUM,
+};
+
+enum keycodes {
+    // Custom oneshot mod implementation with no timers.
+    OS_SHFT = SAFE_RANGE,
+    OS_CTRL,
+    OS_ALT,
+    OS_CMD,
+
+    SW_WIN,  // Switch to next window         (cmd-tab)
+    SW_LANG, // Switch to next input language (ctl-spc)
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [DEF] = LAYOUT_callum(
+        KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_QUOT,
+        KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,
+        KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,
+                                   LA_NAV,  KC_LSFT, KC_SPC,  LA_SYM
+    ),
+
+    [SYM] = LAYOUT_callum(
+        KC_ESC,  KC_LBRC, KC_LCBR, KC_LPRN, KC_TILD, KC_CIRC, KC_RPRN, KC_RCBR, KC_RBRC, KC_GRV,
+        KC_MINS, KC_ASTR, KC_EQL,  KC_UNDS, KC_DLR,  KC_HASH, OS_CMD,  OS_ALT,  OS_CTRL, OS_SHFT,
+        KC_PLUS, KC_PIPE, KC_AT,   KC_BSLS, KC_PERC, XXXXXXX, KC_AMPR, KC_SCLN, KC_COLN, KC_EXLM,
+                                   _______, _______, _______, _______
+    ),
+
+    [NAV] = LAYOUT_callum(
+        KC_TAB,  SW_WIN,  TABL,    TABR,    KC_VOLU, RESET,   HOME,    KC_UP,   END,     KC_DEL,
+        OS_SHFT, OS_CTRL, OS_ALT,  OS_CMD,  KC_VOLD, KC_CAPS, KC_LEFT, KC_DOWN, KC_RGHT, KC_BSPC,
+        SPCL,    SPCR,    BACK,    FWD,     KC_MPLY, XXXXXXX, KC_PGDN, KC_PGUP, SW_LANG, KC_ENT,
+                                   _______, _______, _______, _______
+    ),
+
+    [NUM] = LAYOUT_callum(
+        KC_7,    KC_5,    KC_3,    KC_1,    KC_9,    KC_8,    KC_0,    KC_2,    KC_4,    KC_6,
+        OS_SHFT, OS_CTRL, OS_ALT,  OS_CMD,  KC_F11,  KC_F10,  OS_CMD,  OS_ALT,  OS_CTRL, OS_SHFT,
+        KC_F7,   KC_F5,   KC_F3,   KC_F1,   KC_F9,   KC_F8,   KC_F12,  KC_F2,   KC_F4,   KC_F6,
+                                   _______, _______, _______, _______
+    ),
+};
+
+bool is_oneshot_cancel_key(uint16_t keycode) {
+    switch (keycode) {
+    case LA_SYM:
+    case LA_NAV:
+        return true;
+    default:
+        return false;
+    }
+}
+
+bool is_oneshot_ignored_key(uint16_t keycode) {
+    switch (keycode) {
+    case LA_SYM:
+    case LA_NAV:
+    case KC_LSFT:
+    case OS_SHFT:
+    case OS_CTRL:
+    case OS_ALT:
+    case OS_CMD:
+        return true;
+    default:
+        return false;
+    }
+}
+
+bool sw_win_active = false;
+bool sw_lang_active = false;
+
+oneshot_state os_shft_state = os_up_unqueued;
+oneshot_state os_ctrl_state = os_up_unqueued;
+oneshot_state os_alt_state = os_up_unqueued;
+oneshot_state os_cmd_state = os_up_unqueued;
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    update_swapper(
+        &sw_win_active, KC_LGUI, KC_TAB, SW_WIN,
+        keycode, record
+    );
+    update_swapper(
+        &sw_lang_active, KC_LCTL, KC_SPC, SW_LANG,
+        keycode, record
+    );
+
+    update_oneshot(
+        &os_shft_state, KC_LSFT, OS_SHFT,
+        keycode, record
+    );
+    update_oneshot(
+        &os_ctrl_state, KC_LCTL, OS_CTRL,
+        keycode, record
+    );
+    update_oneshot(
+        &os_alt_state, KC_LALT, OS_ALT,
+        keycode, record
+    );
+    update_oneshot(
+        &os_cmd_state, KC_LCMD, OS_CMD,
+        keycode, record
+    );
+
+    return true;
+}
+
+layer_state_t layer_state_set_user(layer_state_t state) {
+    return update_tri_layer_state(state, SYM, NAV, NUM);
+}