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

boards/shields/dongle_display/widgets/layer_status.c

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
+
+#include <zmk/display.h>
+#include <zmk/display/widgets/layer_status.h>
+#include <zmk/events/layer_state_changed.h>
+#include <zmk/event_manager.h>
+#include <zmk/endpoints.h>
+#include <zmk/keymap.h>
+
+static sys_slist_t widgets = SYS_SLIST_STATIC_INIT(&widgets);
+
+struct layer_status_state {
+    uint8_t index;
+    const char *label;
+};
+
+static void set_layer_symbol(lv_obj_t *label, struct layer_status_state state) {
+    if (state.label == NULL) {
+        char text[7] = {};
+
+        sprintf(text, "%i", state.index);
+
+        lv_label_set_text(label, text);
+    } else {
+        char text[13] = {};
+
+        snprintf(text, sizeof(text), "%s", state.label);
+
+        lv_label_set_text(label, text);
+    }
+}
+
+static void layer_status_update_cb(struct layer_status_state state) {
+    struct zmk_widget_layer_status *widget;
+    SYS_SLIST_FOR_EACH_CONTAINER(&widgets, widget, node) { set_layer_symbol(widget->obj, state); }
+}
+
+static struct layer_status_state layer_status_get_state(const zmk_event_t *eh) {
+    uint8_t index = zmk_keymap_highest_layer_active();
+    return (struct layer_status_state) {
+        .index = index,
+        .label = zmk_keymap_layer_name(index)
+    };
+}
+
+ZMK_DISPLAY_WIDGET_LISTENER(widget_layer_status, struct layer_status_state, layer_status_update_cb,
+                            layer_status_get_state)
+
+ZMK_SUBSCRIPTION(widget_layer_status, zmk_layer_state_changed);
+
+int zmk_widget_layer_status_init(struct zmk_widget_layer_status *widget, lv_obj_t *parent) {
+    widget->obj = lv_label_create(parent);
+
+    sys_slist_append(&widgets, &widget->node);
+
+    widget_layer_status_init();
+    return 0;
+}
+
+lv_obj_t *zmk_widget_layer_status_obj(struct zmk_widget_layer_status *widget) {
+    return widget->obj;
+}