]> git.sur5r.net Git - i3/i3status/blobdiff - src/print_battery_info.c
battery: initialize colorful_output to false
[i3/i3status] / src / print_battery_info.c
index d3a931c67a9f93b939573f54ff2343d548f8fc6b..95237d9ea60fff68687378a3fdd1e1996d6116c5 100644 (file)
@@ -1,4 +1,5 @@
 // vim:ts=8:expandtab
+#include <ctype.h>
 #include <time.h>
 #include <string.h>
 #include <stdlib.h>
@@ -8,7 +9,7 @@
 
 #include "i3status.h"
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #endif
@@ -29,7 +30,7 @@
  * worn off your battery is.
  *
  */
-void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, int threshold, bool last_full_capacity) {
+void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, int low_threshold, char *threshold_type, bool last_full_capacity, bool integer_battery_capacity) {
         time_t empty_time;
         struct tm *empty_tm;
         char buf[1024];
@@ -40,11 +41,12 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
         char consumptionbuf[256];
         const char *walk, *last;
         char *outwalk = buffer;
+        bool watt_as_unit;
+        bool colorful_output = false;
         int full_design = -1,
             remaining = -1,
             present_rate = -1,
-            voltage = -1,
-            current = -1;
+            voltage = -1;
         charging_status_t status = CS_DISCHARGING;
 
         memset(statusbuf, '\0', sizeof(statusbuf));
@@ -72,13 +74,22 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
                 if (*walk != '=')
                         continue;
 
-                if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW") ||
-                    BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW"))
+                if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW")) {
+                        watt_as_unit = true;
                         remaining = atoi(walk+1);
+                }
+                else if (BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW")) {
+                        watt_as_unit = false;
+                        remaining = atoi(walk+1);
+                }
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW"))
-                        current = atoi(walk+1);
+                        present_rate = atoi(walk+1);
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_VOLTAGE_NOW"))
                         voltage = atoi(walk+1);
+                /* on some systems POWER_SUPPLY_POWER_NOW does not exist, but actually
+                 * it is the same as POWER_SUPPLY_CURRENT_NOW but with μWh as
+                 * unit instead of μAh. We will calculate it as we need it
+                 * later. */
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_POWER_NOW"))
                         present_rate = atoi(walk+1);
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging"))
@@ -101,8 +112,15 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
                 }
         }
 
-        if (present_rate == -1) /* on some systems POWER_SUPPLY_POWER_NOW does not exist, so we have to calculate it */
-                present_rate = ((float)voltage / 1000.0) * ((float)current / 1000.0);
+        /* the difference between POWER_SUPPLY_ENERGY_NOW and
+         * POWER_SUPPLY_CHARGE_NOW is the unit of measurement. The energy is
+         * given in mWh, the charge in mAh. So calculate every value given in
+         * ampere to watt */
+        if (!watt_as_unit) {
+            present_rate = (((float)voltage / 1000.0) * ((float)present_rate / 1000.0));
+            remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0));
+            full_design = (((float)voltage / 1000.0) * ((float)full_design / 1000.0));
+        }
 
         if ((full_design == -1) || (remaining == -1)) {
                 OUTPUT_FULL_TEXT("No battery");
@@ -111,8 +129,12 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
 
         (void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(status));
 
-        (void)snprintf(percentagebuf, sizeof(percentagebuf), "%.02f%%",
-                       (((float)remaining / (float)full_design) * 100));
+        float percentage_remaining = (((float)remaining / (float)full_design) * 100);
+        if (integer_battery_capacity) {
+                (void)snprintf(percentagebuf, sizeof(percentagebuf), "%.00f%%", percentage_remaining);
+        } else {
+                (void)snprintf(percentagebuf, sizeof(percentagebuf), "%.02f%%", percentage_remaining);
+        }
 
         if (present_rate > 0) {
                 float remaining_time;
@@ -130,8 +152,19 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
                 minutes = seconds / 60;
                 seconds -= (minutes * 60);
 
-                if (status == CS_DISCHARGING && threshold > 0 && seconds_remaining < 60 * threshold)
-                        START_COLOR("color_bad");
+                if (status == CS_DISCHARGING && low_threshold > 0) {
+                        if (strncmp(threshold_type, "percentage", strlen(threshold_type)) == 0
+                                && percentage_remaining < low_threshold) {
+                                START_COLOR("color_bad");
+                                colorful_output = true;
+                        } else if (strncmp(threshold_type, "time", strlen(threshold_type)) == 0
+                                && seconds_remaining < 60 * low_threshold) {
+                                START_COLOR("color_bad");
+                                colorful_output = true;
+                        } else {
+                            colorful_output = false;
+                        }
+                }
 
                 (void)snprintf(remainingbuf, sizeof(remainingbuf), "%02d:%02d:%02d",
                         max(hours, 0), max(minutes, 0), max(seconds, 0));
@@ -145,10 +178,19 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
 
                 (void)snprintf(consumptionbuf, sizeof(consumptionbuf), "%1.2fW",
                         ((float)present_rate / 1000.0 / 1000.0));
-
-                END_COLOR;
+        } else {
+                /* On some systems, present_rate may not exist. Still, make sure
+                 * we colorize the output if threshold_type is set to percentage
+                 * (since we don't have any information on remaining time). */
+                if (status == CS_DISCHARGING && low_threshold > 0) {
+                        if (strncmp(threshold_type, "percentage", strlen(threshold_type)) == 0
+                                && percentage_remaining < low_threshold) {
+                                START_COLOR("color_bad");
+                                colorful_output = true;
+                        }
+                }
         }
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
         int state;
         int sysctl_rslt;
         size_t sysctl_size = sizeof(sysctl_rslt);
@@ -200,7 +242,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
         * probing acpi(4) devices.
         */
        struct apm_power_info apm_info;
-       int apm_fd, ac_status, charging;
+       int apm_fd;
 
        apm_fd = open("/dev/apm", O_RDONLY);
        if (apm_fd < 0) {
@@ -221,28 +263,53 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
 
        switch(apm_info.ac_state) {
        case APM_AC_OFF:
-               ac_status = CS_DISCHARGING;
+               status = CS_DISCHARGING;
                break;
        case APM_AC_ON:
-               ac_status = CS_CHARGING;
+               status = CS_CHARGING;
                break;
        default:
                /* If we don't know what's going on, just assume we're discharging. */
-               ac_status = CS_DISCHARGING;
+               status = CS_DISCHARGING;
                break;
        }
 
        (void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(status));
         (void)snprintf(percentagebuf, sizeof(percentagebuf), "%02d%%", apm_info.battery_life);
 
+       if (status == CS_DISCHARGING && low_threshold > 0) {
+               if (strncmp(threshold_type, "percentage", strlen(threshold_type)) == 0
+                   && apm_info.battery_life < low_threshold) {
+                       START_COLOR("color_bad");
+                       colorful_output = true;
+               } else if (strncmp(threshold_type, "time", strlen(threshold_type)) == 0
+                          && apm_info.minutes_left < (u_int) low_threshold) {
+                       START_COLOR("color_bad");
+                       colorful_output = true;
+               }
+       }
+
        /* Can't give a meaningful value for remaining minutes if we're charging. */
-       if (ac_status == CS_CHARGING)
-               charging = 1;
+       if (status != CS_CHARGING) {
+               (void)snprintf(remainingbuf, sizeof(remainingbuf), "%d", apm_info.minutes_left);
+       } else {
+               (void)snprintf(remainingbuf, sizeof(remainingbuf), "%s", "(CHR)");
+       }
 
-       (void)snprintf(remainingbuf, sizeof(remainingbuf), (charging ? "%s" : "%d"),
-                      (charging ? "(CHR)" : apm_info.minutes_left));
+       if (colorful_output)
+               END_COLOR;
 #endif
 
+#define EAT_SPACE_FROM_OUTPUT_IF_EMPTY(_buf) \
+        do { \
+                if (strlen(_buf) == 0) { \
+                        if (outwalk > buffer && isspace(outwalk[-1])) \
+                                outwalk--; \
+                        else if (isspace(*(walk+1))) \
+                                walk++; \
+                } \
+        } while (0)
+
         for (walk = format; *walk != '\0'; walk++) {
                 if (*walk != '%') {
                         *(outwalk++) = *walk;
@@ -258,14 +325,20 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
                 } else if (strncmp(walk+1, "remaining", strlen("remaining")) == 0) {
                         outwalk += sprintf(outwalk, "%s", remainingbuf);
                         walk += strlen("remaining");
+                        EAT_SPACE_FROM_OUTPUT_IF_EMPTY(remainingbuf);
                 } else if (strncmp(walk+1, "emptytime", strlen("emptytime")) == 0) {
                         outwalk += sprintf(outwalk, "%s", emptytimebuf);
                         walk += strlen("emptytime");
+                        EAT_SPACE_FROM_OUTPUT_IF_EMPTY(emptytimebuf);
                 } else if (strncmp(walk+1, "consumption", strlen("consumption")) == 0) {
                         outwalk += sprintf(outwalk, "%s", consumptionbuf);
-                        walk += strlen("consumptionbuf");
+                        walk += strlen("consumption");
+                        EAT_SPACE_FROM_OUTPUT_IF_EMPTY(consumptionbuf);
                 }
         }
 
+        if (colorful_output)
+                END_COLOR;
+
         OUTPUT_FULL_TEXT(buffer);
 }