Battery: support for ac connection event cmd

This add two new config options "ac_connected_cmd" and
"ac_disconnected_cmd". These commands are executed when
AC (mains supply) is connected or disconnected.

src/battery/battery.c

@@ -44,6 +44,8 @@ static char buf_bat_time[20];
 
 int8_t battery_low_status;
 unsigned char battery_low_cmd_sent;
+char *ac_connected_cmd;
+char *ac_disconnected_cmd;
 char *battery_low_cmd;
 char *battery_lclick_command;
 char *battery_mclick_command;
@@ -59,6 +61,7 @@ void update_battery_tick(void* arg)
 
 	int old_found = battery_found;
 	int old_percentage = battery_state.percentage;
+	int old_ac_connected = battery_state.ac_connected;
 	int16_t old_hours = battery_state.time.hours;
 	int8_t old_minutes = battery_state.time.minutes;
 	
@@ -71,6 +74,14 @@ void update_battery_tick(void* arg)
 		// Try again
 		update_battery();
 	}
+
+	if (old_ac_connected != battery_state.ac_connected) {
+		if(battery_state.ac_connected)
+			tint_exec(ac_connected_cmd);
+		else
+			tint_exec(ac_disconnected_cmd);
+	}
+
 	if (old_found == battery_found &&
 		old_percentage == battery_state.percentage &&
 		old_hours == battery_state.time.hours &&
@@ -215,6 +226,7 @@ int update_battery() {
 	/* reset */
 	battery_state.state = BATTERY_UNKNOWN;
 	battery_state.percentage = 0;
+	battery_state.ac_connected = FALSE;
 	batstate_set_time(&battery_state, 0);
 
 	err = battery_os_update(&battery_state);

src/battery/battery.h

@@ -44,6 +44,7 @@ typedef struct batstate {
 	int percentage;
 	struct battime time;
 	enum chargestate state;
+	gboolean ac_connected;
 } batstate;
 
 extern struct batstate battery_state;
@@ -56,6 +57,9 @@ extern int percentage_hide;
 extern int8_t battery_low_status;
 extern char *battery_low_cmd;
 
+extern char *ac_connected_cmd;
+extern char *ac_disconnected_cmd;
+
 extern char *battery_lclick_command;
 extern char *battery_mclick_command;
 extern char *battery_rclick_command;

src/battery/linux.c

@@ -343,6 +343,7 @@ int battery_os_update(struct batstate *state) {
 	gboolean charging = FALSE;
 	gboolean discharging = FALSE;
 	gboolean full = FALSE;
+	gboolean ac_connected = FALSE;
 
 	for (l = batteries; l != NULL; l = l->next) {
 		struct psy_battery *bat = l->data;
@@ -360,6 +361,7 @@ int battery_os_update(struct batstate *state) {
 	for (l = mains; l != NULL; l = l->next) {
 		struct psy_mains *ac = l->data;
 		update_linux_mains(ac);
+		ac_connected |= (ac->online);
 	}
 
 	/* build global state */
@@ -382,6 +384,9 @@ int battery_os_update(struct batstate *state) {
 	/* calculate percentage */
 	state->percentage = energy_to_percent(total_energy_now, total_energy_full);
 
+	/* AC state */
+	state->ac_connected = ac_connected;
+
 	return 0;
 }
 

src/config.c

@@ -392,6 +392,18 @@ void add_entry (char *key, char *value)
 #ifdef ENABLE_BATTERY
 		if (strlen(value) > 0)
 			battery_low_cmd = strdup (value);
+#endif
+	}
+	else if (strcmp (key, "ac_connected_cmd") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			ac_connected_cmd = strdup (value);
+#endif
+	}
+	else if (strcmp (key, "ac_disconnected_cmd") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			ac_disconnected_cmd = strdup (value);
 #endif
 	}
 	else if (strcmp (key, "bat1_font") == 0) {