+void init_battery()
+{
+ // check battery
+ GDir *directory = 0;
+ GError *error = NULL;
+ const char *entryname;
+ char *battery_dir = 0;
+
+ if (!battery_enabled) return;
+
+ directory = g_dir_open("/sys/class/power_supply", 0, &error);
+ if (error)
+ g_error_free(error);
+ else {
+ while ((entryname=g_dir_read_name(directory))) {
+ if (strncmp(entryname,"AC", 2) == 0) continue;
+
+ char *path1 = g_build_filename("/sys/class/power_supply", entryname, "present", NULL);
+ if (g_file_test (path1, G_FILE_TEST_EXISTS)) {
+ g_free(path1);
+ battery_dir = g_build_filename("/sys/class/power_supply", entryname, NULL);
+ break;
+ }
+ g_free(path1);
+ }
+ }
+ if (directory)
+ g_dir_close(directory);
+ if (!battery_dir) {
+ cleanup_battery();
+ fprintf(stderr, "ERROR: battery applet can't found power_supply\n");
+ return;
+ }
+
+ char *path1 = g_build_filename(battery_dir, "energy_now", NULL);
+ if (g_file_test (path1, G_FILE_TEST_EXISTS)) {
+ path_energy_now = g_build_filename(battery_dir, "energy_now", NULL);
+ path_energy_full = g_build_filename(battery_dir, "energy_full", NULL);
+ }
+ else {
+ char *path2 = g_build_filename(battery_dir, "charge_now", NULL);
+ if (g_file_test (path2, G_FILE_TEST_EXISTS)) {
+ path_energy_now = g_build_filename(battery_dir, "charge_now", NULL);
+ path_energy_full = g_build_filename(battery_dir, "charge_full", NULL);
+ }
+ else {
+ fprintf(stderr, "ERROR: can't found energy_* or charge_*\n");
+ }
+ g_free(path2);
+ }
+ if (path_energy_now && path_energy_full) {
+ path_current_now = g_build_filename(battery_dir, "current_now", NULL);
+ path_status = g_build_filename(battery_dir, "status", NULL);
+
+ // check file
+ FILE *fp1, *fp2, *fp3, *fp4;
+ fp1 = fopen(path_energy_now, "r");
+ fp2 = fopen(path_energy_full, "r");
+ fp3 = fopen(path_current_now, "r");
+ fp4 = fopen(path_status, "r");
+ if (fp1 == NULL || fp2 == NULL || fp3 == NULL || fp4 == NULL) {
+ cleanup_battery();
+ fprintf(stderr, "ERROR: battery applet can't open energy_now\n");
+ }
+ fclose(fp1);
+ fclose(fp2);
+ fclose(fp3);
+ fclose(fp4);
+ }
+
+ g_free(path1);
+ g_free(battery_dir);
+
+ if (battery_enabled)
+ install_timer(0, 1000000, 5, 0, update_batterys);
+}
+
+
+void cleanup_battery()
+{
+ battery_enabled = 0;
+ if (bat1_font_desc)
+ pango_font_description_free(bat1_font_desc);
+ if (bat2_font_desc)
+ pango_font_description_free(bat2_font_desc);
+ if (path_energy_now)
+ g_free(path_energy_now);
+ if (path_energy_full)
+ g_free(path_energy_full);
+ if (path_current_now)
+ g_free(path_current_now);
+ if (path_status)
+ g_free(path_status);
+ if (battery_low_cmd)
+ g_free(battery_low_cmd);
+
+ battery_low_cmd = path_energy_now = path_energy_full = path_current_now = path_status = 0;
+ bat1_font_desc = bat2_font_desc = 0;
+}
+
+
+void init_battery_panel(void *p)
+{
+ Panel *panel = (Panel*)p;
+ Battery *battery = &panel->battery;
+ int bat_percentage_height, bat_percentage_height_ink, bat_time_height, bat_time_height_ink;
+
+ if (!battery_enabled)
+ return;
+
+ battery->area.parent = p;
+ battery->area.panel = p;
+ battery->area._draw_foreground = draw_battery;
+ battery->area._resize = resize_battery;
+ battery->area.resize = 1;
+ battery->area.redraw = 1;
+ battery->area.on_screen = 1;
+
+ update_battery(&battery_state);
+ snprintf(buf_bat_percentage, sizeof(buf_bat_percentage), "%d%%", battery_state.percentage);
+ snprintf(buf_bat_time, sizeof(buf_bat_time), "%02d:%02d", battery_state.time.hours, battery_state.time.minutes);
+
+ get_text_size(bat1_font_desc, &bat_percentage_height_ink, &bat_percentage_height, panel->area.height, buf_bat_percentage, strlen(buf_bat_percentage));
+ get_text_size(bat2_font_desc, &bat_time_height_ink, &bat_time_height, panel->area.height, buf_bat_time, strlen(buf_bat_time));
+
+ if (panel_horizontal) {
+ // panel horizonal => fixed height and posy
+ battery->area.posy = panel->area.pix.border.width + panel->area.paddingy;
+ battery->area.height = panel->area.height - (2 * battery->area.posy);
+ }
+ else {
+ // panel vertical => fixed width, height, posy and posx
+ battery->area.posy = panel->clock.area.posy + panel->clock.area.height + panel->area.paddingx;
+ battery->area.height = (2 * battery->area.paddingxlr) + (bat_time_height + bat_percentage_height);
+ battery->area.posx = panel->area.pix.border.width + panel->area.paddingy;
+ battery->area.width = panel->area.width - (2 * panel->area.pix.border.width) - (2 * panel->area.paddingy);
+ }
+
+ battery->bat1_posy = (battery->area.height - bat_percentage_height) / 2;
+ battery->bat1_posy -= ((bat_time_height_ink + 2) / 2);
+ battery->bat2_posy = battery->bat1_posy + bat_percentage_height + 2 - (bat_percentage_height - bat_percentage_height_ink)/2 - (bat_time_height - bat_time_height_ink)/2;
+}
+
+
+void update_battery() {