89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
// vim:ts=4:sw=4:expandtab
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#include <config.h>
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#include <time.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <locale.h>
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#include <yajl/yajl_gen.h>
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#include <yajl/yajl_version.h>
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#include "i3status.h"
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#define STRING_SIZE 50
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static bool local_timezone_init = false;
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static const char *local_timezone = NULL;
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static const char *current_timezone = NULL;
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void set_timezone(const char *tz) {
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if (!local_timezone_init) {
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/* First call, initialize. */
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local_timezone = getenv("TZ");
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local_timezone_init = true;
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}
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if (tz == NULL || tz[0] == '\0') {
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/* User wants localtime. */
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tz = local_timezone;
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}
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if (tz != current_timezone) {
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if (tz) {
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setenv("TZ", tz, 1);
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} else {
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unsetenv("TZ");
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}
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current_timezone = tz;
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}
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tzset();
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}
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void print_time(yajl_gen json_gen, char *buffer, const char *title, const char *format, const char *tz, const char *locale, const char *format_time, bool hide_if_equals_localtime, time_t t) {
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char *outwalk = buffer;
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struct tm local_tm, tm;
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if (title != NULL)
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INSTANCE(title);
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set_timezone(NULL);
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localtime_r(&t, &local_tm);
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set_timezone(tz);
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localtime_r(&t, &tm);
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// When hide_if_equals_localtime is true, compare local and target time to display only if different
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time_t local_t = mktime(&local_tm);
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double diff = difftime(local_t, t);
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if (hide_if_equals_localtime && diff == 0.0) {
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goto out;
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}
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if (locale != NULL) {
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setlocale(LC_ALL, locale);
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}
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char string_time[STRING_SIZE];
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if (format_time == NULL) {
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strftime(string_time, sizeof(string_time), format, &tm);
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maybe_escape_markup(string_time, &outwalk);
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} else {
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strftime(string_time, sizeof(string_time), format_time, &tm);
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placeholder_t placeholders[] = {
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{.name = "%time", .value = string_time}};
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const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
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buffer = format_placeholders(format_time, &placeholders[0], num);
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}
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if (locale != NULL) {
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setlocale(LC_ALL, "");
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}
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out:
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*outwalk = '\0';
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OUTPUT_FULL_TEXT(buffer);
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if (format_time != NULL) {
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free(buffer);
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}
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}
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