sway status initial commit
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232
swaystatus.c
Normal file
232
swaystatus.c
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#include <stdio.h>
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#include <stdbool.h>
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#include <time.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#define BATTERY_PATH "/sys/class/power_supply/BAT0/capacity"
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// ---- KEYBOARD LAYOUT ----
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char *get_active_keyboard_layout() {
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FILE *fp = popen("swaymsg -t get_inputs | jq -r '.[] | select(.type==\"keyboard\") | .xkb_active_layout_name' | head -n1", "r");
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if (!fp) {
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return NULL;
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}
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static char buf[64];
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if (fgets(buf, sizeof(buf), fp)) {
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// strip newline
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buf[strcspn(buf, "\n")] = 0;
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pclose(fp);
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return buf;
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}
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pclose(fp);
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return NULL;
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}
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// ---- VOLUME MUTED ----
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int is_volume_muted() {
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FILE *fp = popen("amixer get Master | grep -o '\\[on\\]\\|\\[off\\]' | head -n1", "r");
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if (!fp) return -1;
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char buf[8];
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if (!fgets(buf, sizeof(buf), fp)) {
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pclose(fp);
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return -1;
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}
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pclose(fp);
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if (strstr(buf, "[off]")) {
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return 1; // muted
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} else if (strstr(buf, "[on]")) {
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return 0; // not muted
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}
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return -1; // unknown
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}
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// ---- VOLUME LEVEL ----
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int get_volume_percentage() {
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int current = -1;
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FILE *fp = popen("amixer sget Master | grep -o '[0-9]*%'", "r");
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if (fp == NULL) return -1;
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fscanf(fp, "%d%%\n", ¤t);
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pclose(fp);
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if (current == -1) return -1;
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return current;
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}
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// ---- BRIGHTNESS ----
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int get_brightness_percentage() {
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int current = -1;
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int max = 1;
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FILE *fp = popen("brightnessctl g", "r");
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if (fp == NULL) return -1;
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fscanf(fp, "%d\n", ¤t);
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pclose(fp);
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if (current == -1) {
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return -1;
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}
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fp = popen("brightnessctl m", "r");
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if (fp == NULL) return -1;
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fscanf(fp, "%d\n", &max);
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pclose(fp);
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return (int)((float)current / (float)max * 100.0f);
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}
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// ---- BATTERY ----
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int get_battery_percentage() {
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FILE *fp = fopen(BATTERY_PATH, "r");
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if (fp == NULL) {
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return -1;
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}
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int capacity;
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if (fscanf(fp, "%d", &capacity) != 1) {
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fclose(fp);
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return -1;
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}
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fclose(fp);
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return capacity;
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}
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// ---- MEMORY ----
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int get_memory_usage() {
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FILE *fp = fopen("/proc/meminfo", "r");
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if (fp == NULL) return -1;
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long total = 0, available = 0;
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char label[64];
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long value;
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char unit[16];
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while (fscanf(fp, "%63s %ld %15s\n", label, &value, unit) == 3) {
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if (strcmp(label, "MemTotal:") == 0) total = value;
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if (strcmp(label, "MemAvailable:") == 0) {
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available = value;
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break;
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}
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}
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fclose(fp);
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if (total == 0) return -1;
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return (int)((100 * (total - available)) / total);
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}
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// ---- CPU ----
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double get_cpu_usage() {
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static long prev_idle = 0, prev_total = 0;
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FILE *fp = fopen("/proc/stat", "r");
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if (fp == NULL) return -1.0;
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char cpu[5];
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long user, nice, system, idle, iowait, irq, softirq, steal;
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fscanf(fp, "%4s %ld %ld %ld %ld %ld %ld %ld %ld",
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cpu, &user, &nice, &system, &idle,
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&iowait, &irq, &softirq, &steal);
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fclose(fp);
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long idle_time = idle + iowait;
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long total_time = user + nice + system + idle + iowait + irq + softirq + steal;
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long diff_idle = idle_time - prev_idle;
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long diff_total = total_time - prev_total;
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prev_idle = idle_time;
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prev_total = total_time;
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if (diff_total == 0) return 0.0;
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return (100.0 * (diff_total - diff_idle)) / diff_total;
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}
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// ---- WIFI ----
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char *get_wifi_name() {
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static char ssid[64];
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FILE *fp = popen("nmcli -t -f NAME,DEVICE connection show --active | grep -m1 \"$(nmcli -t -f DEVICE device status | grep connected | cut -d: -f1)\" | cut -d: -f1 || echo \"No active connection\">/dev/null", "r");
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if (fp == NULL) return NULL;
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if (fgets(ssid, sizeof(ssid), fp) == NULL) {
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pclose(fp);
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return NULL;
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}
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pclose(fp);
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// remove trailing newline
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ssid[strcspn(ssid, "\n")] = '\0';
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if (strcmp(ssid, "lo") == 0) {
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strcpy(ssid, "No Wi-Fi");
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}
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return ssid;
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}
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// ---- MAIN ----
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int main() {
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// Print swaybar header
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printf("{\"version\":1}\n[\n");
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fflush(stdout);
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int first = 1;
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while (1) {
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// Time
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time_t now = time(NULL);
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struct tm *t = localtime(&now);
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char time_str[64];
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strftime(time_str, sizeof(time_str), "%Y-%m-%d %H:%M:%S", t);
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// Keyboard Layout
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char *keyboard_layout = get_active_keyboard_layout();
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// Brightness
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int current_brightness = get_brightness_percentage();
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// Volume
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int current_volume = get_volume_percentage();
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bool volume_muted = is_volume_muted() == 1;
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// Battery
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int battery = get_battery_percentage();
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const char *bat_color;
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if (battery < 0) {
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bat_color = "#AAAAAA";
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} else if (battery < 20) {
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bat_color = "#FF0000";
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} else if (battery < 50) {
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bat_color = "#FFFF00";
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} else {
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bat_color = "#00FF00";
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}
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// Memory
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int mem_used = get_memory_usage();
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// CPU
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double cpu_used = get_cpu_usage();
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// Wi-Fi
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char *wifi = get_wifi_name();
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if (!wifi || strlen(wifi) == 0) wifi = "No WiFi";
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// JSON output
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if (!first) {
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printf(",\n");
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}
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first = 0;
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printf("[");
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printf("{\"full_text\":\" %.1f%% \",\"color\":\"#00FFFF\"},", cpu_used);
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printf("{\"full_text\":\" %d%% \",\"color\":\"#FFA500\"},", mem_used);
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printf("{\"full_text\":\" %s \",\"color\":\"#FFFFFF\"},", wifi);
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printf("{\"full_text\":\" %s \",\"color\":\"#FFFFFF\"},", keyboard_layout);
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printf("{\"full_text\":\" %d \",\"color\":\"#FFFFFF\"},", current_brightness);
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printf("{\"full_text\":\" ");
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if (volume_muted) printf("");
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else printf("");
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printf(" %d%% \",\"color\":\"#FFFFFF\"},", current_volume);
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printf("{\"full_text\":\" %d%% \",\"color\":\"%s\"},", battery, bat_color);
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printf("{\"full_text\":\" %s \",\"color\":\"#FFFFFF\"}", time_str);
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printf("]\n");
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fflush(stdout);
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sleep(1);
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}
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return 0;
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}
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