[Keymap] Add dual layer keymap for xd002 macropad (#9222)

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/xd002/keymaps/multilayer_rgb/config.h

@@ -0,0 +1,22 @@
+/* Copyright 2020 elmo-space<mail@elmo.space>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+/*enable layers*/
+#undef NO_ACTION_LAYER
+
+/* increase tap duration (spotify doesn't like very short taps)*/
+#define TAP_CODE_DELAY 100

keyboards/xd002/keymaps/multilayer_rgb/keymap.c

@@ -0,0 +1,173 @@
+/* Copyright 2020 elmo-space<mail@elmo.space>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+#include "rgblite.h"
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+    _BASE,
+    _FUNC,
+};
+
+// set your keycodes here
+#define layer1_left  KC_PAUS
+#define layer1_right KC_MPLY
+#define layer2_left  KC_MPRV
+#define layer2_right KC_MNXT
+
+
+enum custom_keycodes {
+  LEFT1 = SAFE_RANGE,
+  RIGHT1,
+  LEFT2,
+  RIGHT2
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_BASE] = LAYOUT(
+    LEFT1,  RIGHT1
+  ),
+  [_FUNC] = LAYOUT(
+    LEFT2,  RIGHT2
+  )
+};
+
+static bool key1_down = false;
+static bool key2_down = false;
+static char layer_switched = 0; // this prevents the individual keys getting triggered after a layerchange
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record)
+{
+    switch (keycode)
+    {
+    case LEFT1:
+        if (record->event.pressed)
+        {
+            if (key2_down)
+            {
+                layer_on(1);
+                layer_switched = 2;
+                return false;
+                break;
+            }
+            key1_down = true;
+        }
+        else {
+            if (layer_switched > 0) {
+                --layer_switched;
+                key1_down = false;
+            }
+            else {
+                tap_code(layer1_left);
+                key1_down = false;
+            }
+        }
+        return false;
+        break;
+    case RIGHT1:
+        if (record->event.pressed)
+        {
+            if (key1_down)
+            {
+                layer_on(1);
+                layer_switched = 2;
+                return false;
+                break;
+            }
+            key2_down = true;
+        }
+        else {
+            if (layer_switched > 0) {
+                --layer_switched;
+                key2_down = false;
+            }
+            else {
+                tap_code(layer1_right);
+                key2_down = false;
+            }
+        }
+        return false;
+        break;
+    case LEFT2:
+        if (record->event.pressed)
+        {
+            if (key2_down)
+            {
+                layer_off(1);
+                layer_switched = 2;
+                return false;
+                break;
+            }
+            key1_down = true;
+        }
+        else {
+            if (layer_switched > 0) {
+                --layer_switched;
+                key1_down = false;
+            }
+            else {
+                tap_code(layer2_left);
+                key1_down = false;
+            }
+        }
+        return false;
+        break;
+    case RIGHT2:
+        if (record->event.pressed)
+        {
+            if (key1_down)
+            {
+                layer_off(1);
+                layer_switched = 2;
+                return false;
+                break;
+            }
+            key2_down = true;
+        }
+        else {
+            if (layer_switched > 0) {
+                --layer_switched;
+                key2_down = false;
+            }
+            else {
+                tap_code(layer2_right);
+                key2_down = false;
+            }
+        }
+        return false;
+        break;
+    }
+    return true;
+};
+
+// layer colors
+layer_state_t layer_state_set_user(layer_state_t state) {
+    switch (get_highest_layer(state)) {
+    case _FUNC:
+        rgblight_setrgb_red();
+        break;
+    default: //  for any other layers, or the default layer
+        rgblight_setrgb_green();
+        break;
+    }
+  return state;
+}
+
+// default color
+void keyboard_post_init_user(void) {
+    rgblight_setrgb_green();
+}

keyboards/xd002/keymaps/multilayer_rgb/rgblite.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "ws2812.h"
+#include "rgblight_list.h"
+
+static inline void rgblight_setrgb(uint8_t _r, uint8_t _g, uint8_t _b) {
+    LED_TYPE leds[RGBLED_NUM] = {{.r = _r, .g = _g, .b = _b}, {.r = _r, .g = _g, .b = _b}};
+    ws2812_setleds(leds, RGBLED_NUM);
+}

keyboards/xd002/keymaps/multilayer_rgb/rules.mk

@@ -0,0 +1,2 @@
+SRC += ws2812.c
+EXTRAKEY_ENABLE = yes