1. local/github integration module 2. makefile redundancy eliminated

boards/shields/dongle_display/widgets/battery_status.c

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2024 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/bluetooth/services/bas.h>
+
+#include <zephyr/logging/log.h>
+LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
+
+#include <zmk/display.h>
+#include <zmk/display/widgets/battery_status.h>
+#include <zmk/usb.h>
+#include <zmk/ble.h>
+#include <zmk/events/usb_conn_state_changed.h>
+#include <zmk/event_manager.h>
+#include <zmk/events/battery_state_changed.h>
+
+#include "battery_status.h"
+
+static sys_slist_t widgets = SYS_SLIST_STATIC_INIT(&widgets);
+
+struct peripheral_battery_state {
+    uint8_t source;
+    uint8_t level;
+};
+    
+static lv_color_t battery_image_buffer[ZMK_SPLIT_BLE_PERIPHERAL_COUNT][5 * 8];
+
+static void draw_battery(lv_obj_t *canvas, uint8_t level) {
+    lv_canvas_fill_bg(canvas, lv_color_black(), LV_OPA_COVER);
+    
+    lv_draw_rect_dsc_t rect_fill_dsc;
+    lv_draw_rect_dsc_init(&rect_fill_dsc);
+    rect_fill_dsc.bg_color = lv_color_white();
+
+    lv_canvas_set_px(canvas, 0, 0, lv_color_white());
+    lv_canvas_set_px(canvas, 4, 0, lv_color_white());
+
+    if (level > 90) {
+        // full
+    } else if (level > 70) {
+        lv_canvas_draw_rect(canvas, 1, 2, 3, 1, &rect_fill_dsc);
+    } else if (level > 50) {
+        lv_canvas_draw_rect(canvas, 1, 2, 3, 2, &rect_fill_dsc);
+    } else if (level > 30) {
+        lv_canvas_draw_rect(canvas, 1, 2, 3, 3, &rect_fill_dsc);
+    } else if (level > 10) {
+        lv_canvas_draw_rect(canvas, 1, 2, 3, 4, &rect_fill_dsc);
+    } else {
+        lv_canvas_draw_rect(canvas, 1, 2, 3, 5, &rect_fill_dsc);
+    }
+}
+
+static void set_battery_symbol(lv_obj_t *widget, struct peripheral_battery_state state) {
+    lv_obj_t *symbol = lv_obj_get_child(widget, state.source * 2);
+    lv_obj_t *label = lv_obj_get_child(widget, state.source * 2 + 1);
+
+    draw_battery(symbol, state.level);
+    lv_label_set_text_fmt(label, "%3u%%", state.level);
+    
+    if (state.level > 0) {
+        lv_obj_clear_flag(symbol, LV_OBJ_FLAG_HIDDEN);
+        lv_obj_clear_flag(label, LV_OBJ_FLAG_HIDDEN);
+    } else {
+        lv_obj_add_flag(symbol, LV_OBJ_FLAG_HIDDEN);
+        lv_obj_add_flag(label, LV_OBJ_FLAG_HIDDEN);
+    }
+}
+
+void battery_status_update_cb(struct peripheral_battery_state state) {
+    struct zmk_widget_battery_status *widget;
+    SYS_SLIST_FOR_EACH_CONTAINER(&widgets, widget, node) { set_battery_symbol(widget->obj, state); }
+}
+
+static struct peripheral_battery_state battery_status_get_state(const zmk_event_t *eh) {
+    const struct zmk_peripheral_battery_state_changed *ev = as_zmk_peripheral_battery_state_changed(eh);
+    return (struct peripheral_battery_state){
+        .source = ev->source,
+        .level = ev->state_of_charge,
+    };
+}
+
+ZMK_DISPLAY_WIDGET_LISTENER(widget_battery_status, struct peripheral_battery_state,
+                            battery_status_update_cb, battery_status_get_state)
+
+ZMK_SUBSCRIPTION(widget_battery_status, zmk_peripheral_battery_state_changed);
+
+int zmk_widget_peripheral_battery_status_init(struct zmk_widget_peripheral_battery_status *widget, lv_obj_t *parent) {
+    widget->obj = lv_obj_create(parent);
+
+    lv_obj_set_size(widget->obj, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
+
+    for (int i = 0; i < ZMK_SPLIT_BLE_PERIPHERAL_COUNT; i++) {
+        lv_obj_t *image_canvas = lv_canvas_create(widget->obj);
+        lv_obj_t *battery_label = lv_label_create(widget->obj);
+
+        lv_canvas_set_buffer(image_canvas, battery_image_buffer[i], 5, 8, LV_IMG_CF_TRUE_COLOR);
+
+        lv_obj_align(image_canvas, LV_ALIGN_TOP_RIGHT, 0, i * 10);
+        lv_obj_align(battery_label, LV_ALIGN_TOP_RIGHT, -7, i * 10);
+    }
+
+    sys_slist_append(&widgets, &widget->node);
+
+    widget_battery_status_init();
+
+    return 0;
+}
+
+lv_obj_t *zmk_widget_peripheral_battery_status_obj(struct zmk_widget_peripheral_battery_status *widget) {
+    return widget->obj;
+}