1 files changed, 136 insertions, 0 deletions

diff --git a/users/drashna/pointing/pointing.c b/users/drashna/pointing/pointing.c
new file mode 100644
index 000000000..0198a8ae2
--- /dev/null
+++ b/users/drashna/pointing/pointing.c
@@ -0,0 +1,136 @@
+/* Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
+ *
+ * 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 "pointing.h"
+
+static uint16_t mouse_timer           = 0;
+static uint16_t mouse_debounce_timer  = 0;
+static uint8_t  mouse_keycode_tracker = 0;
+bool            tap_toggling = false, enable_acceleration = false;
+
+#ifdef TAPPING_TERM_PER_KEY
+#    define TAP_CHECK get_tapping_term(KC_BTN1, NULL)
+#else
+#    ifndef TAPPING_TERM
+#        define TAPPING_TERM 200
+#    endif
+#    define TAP_CHECK TAPPING_TERM
+#endif
+
+__attribute__((weak)) report_mouse_t pointing_device_task_keymap(report_mouse_t mouse_report) {
+    return mouse_report;
+}
+
+report_mouse_t pointing_device_task_user(report_mouse_t mouse_report) {
+    int8_t x = mouse_report.x, y = mouse_report.y;
+    mouse_report.x = 0;
+    mouse_report.y = 0;
+
+    if (x != 0 && y != 0) {
+        mouse_timer = timer_read();
+#ifdef OLED_ENABLE
+        oled_timer = timer_read32();
+#endif
+        if (timer_elapsed(mouse_debounce_timer) > TAP_CHECK) {
+            if (enable_acceleration) {
+                x = (x > 0 ? x * x / 16 + x : -x * x / 16 + x);
+                y = (y > 0 ? y * y / 16 + y : -y * y / 16 + y);
+            }
+            mouse_report.x = x;
+            mouse_report.y = y;
+            if (!layer_state_is(_MOUSE)) {
+                layer_on(_MOUSE);
+            }
+        }
+    }
+    return pointing_device_task_keymap(mouse_report);
+}
+
+void matrix_scan_pointing(void) {
+    if (timer_elapsed(mouse_timer) > 650 && layer_state_is(_MOUSE) && !mouse_keycode_tracker && !tap_toggling) {
+        layer_off(_MOUSE);
+    }
+    if (tap_toggling) {
+        if (!layer_state_is(_MOUSE)) {
+            layer_on(_MOUSE);
+        }
+    }
+}
+
+bool process_record_pointing(uint16_t keycode, keyrecord_t* record) {
+    switch (keycode) {
+        case TT(_MOUSE):
+            if (record->event.pressed) {
+                mouse_keycode_tracker++;
+            } else {
+#if TAPPING_TOGGLE != 0
+                if (record->tap.count == TAPPING_TOGGLE) {
+                    tap_toggling ^= 1;
+#    if TAPPING_TOGGLE == 1
+                    if (!tap_toggling) mouse_keycode_tracker -= record->tap.count + 1;
+#    else
+                    if (!tap_toggling) mouse_keycode_tracker -= record->tap.count;
+#    endif
+                } else {
+                    mouse_keycode_tracker--;
+                }
+#endif
+            }
+            mouse_timer = timer_read();
+            break;
+        case TG(_MOUSE):
+            if (record->event.pressed) {
+                tap_toggling ^= 1;
+            }
+            break;
+        case MO(_MOUSE):
+#if defined(KEYBOARD_ploopy) || defined(KEYBOARD_handwired_tractyl_manuform)
+        case DPI_CONFIG:
+#elif defined(KEYBOARD_bastardkb_charybdis)
+        case SAFE_RANGE ... (CHARYBDIS_SAFE_RANGE-1):
+#endif
+        case KC_MS_UP ... KC_MS_WH_RIGHT:
+            record->event.pressed ? mouse_keycode_tracker++ : mouse_keycode_tracker--;
+            mouse_timer = timer_read();
+            break;
+        case KC_ACCEL:
+            enable_acceleration = record->event.pressed;
+            record->event.pressed ? mouse_keycode_tracker++ : mouse_keycode_tracker--;
+            mouse_timer = timer_read();
+            break;
+        default:
+            if (IS_NOEVENT(record->event)) break;
+            if ((keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX) && (((keycode >> 0x8) & 0xF) == _MOUSE)) {
+                record->event.pressed ? mouse_keycode_tracker++ : mouse_keycode_tracker--;
+                mouse_timer = timer_read();
+                break;
+            }
+            if (layer_state_is(_MOUSE) && !mouse_keycode_tracker) {
+                layer_off(_MOUSE);
+            }
+            mouse_keycode_tracker = 0;
+            mouse_debounce_timer  = timer_read();
+            break;
+    }
+    return true;
+}
+
+layer_state_t layer_state_set_pointing(layer_state_t state) {
+    if (layer_state_cmp(state, _GAMEPAD) || layer_state_cmp(state, _DIABLO)) {
+        state |= ((layer_state_t)1 << _MOUSE);
+    }
+    return state;
+}