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/************************************************************************
* This file is part of paramano. *
* *
* paramano is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* paramano is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with paramano. If not, see *
* <http://www.gnu.org/licenses/>. *
************************************************************************/
#include "bat_tray.h"
#include <gtk/gtk.h>
#include <libintl.h>
#include <stdio.h>
#include "common.h"
#include "defaults.h"
static GtkStatusIcon* tray;
int bat_num; // Shortcoming: we only detect one battery
char *CHARGE_VALUE_PATH, *CHARGE_STATE_PATH;
/***********************************************************************
* Return the battery level percentage
**********************************************************************/
int get_bat_percent()
{
return get_int_value_from_file(CHARGE_VALUE_PATH);
}
/***********************************************************************
* Updates the battery tray tooltip text
**********************************************************************/
static gboolean update_tooltip(GtkStatusIcon* status_icon,gint x,gint y,gboolean keyboard_mode,GtkTooltip* tooltip,gpointer data)
{
char* msg;
switch(get_battery_state())
{
case STATE_DISCHARGING:
debug("Discharging\n");
asprintf(&msg, _("Discharging (%d%%)"), get_bat_percent());
break;
case STATE_CHARGING:
debug("Charging\n");
asprintf(&msg, _("Charging (%d%%)"), get_bat_percent());
break;
case STATE_CHARGED:
debug("Charged\n");
asprintf(&msg, _("Fully charged") );
break;
default:
debug("Unknown\n");
asprintf(&msg, _("Unknown status") );
break;
}
debug("Setting tooltip text to '%s'\n",msg);
gtk_tooltip_set_text(tooltip, msg);
free(msg);
return true;
}
/***********************************************************************
* Updates the battery tray icon based upon battery percent
**********************************************************************/
gboolean update_icon(gpointer user_data)
{
char *icon_file;
unsigned int rounded;
rounded = 20* (int)((get_bat_percent()+10)/20); // Round percentage to 0, 20, 40, 60, 80 or 100
debug("Rounded/adjusted percentage: %d\n",rounded);
switch ( get_battery_state() )
{
case STATE_DISCHARGING:
asprintf(&icon_file,"%s/bat-%d.png",_DEFAULT_THEME,rounded);
break;
case STATE_CHARGING:
asprintf(&icon_file,"%s/bat-%d-charging.png",_DEFAULT_THEME,rounded);
break;
default:
asprintf(&icon_file,"%s/bat-charged.png",_DEFAULT_THEME);
break;
}
debug("Setting tray icon to '%s'\n",icon_file);
gtk_status_icon_set_from_file(tray, icon_file);
free(icon_file);
return true;
}
/***********************************************************************
* Initialise the tray and related variables
**********************************************************************/
void bat_tray_init()
{
char *icon_file;
// Get the battery number, store it for later
bat_num = get_bat_num();
// Set up battery info filenames/paths
asprintf(&CHARGE_VALUE_PATH, "/sys/class/power_supply/BAT%d/capacity", bat_num);
asprintf(&CHARGE_STATE_PATH, "/sys/class/power_supply/BAT%d/status", bat_num);
debug("Spawning new status icon\n");
tray = gtk_status_icon_new();
asprintf(&icon_file,"%s/bat-charged.png",_DEFAULT_THEME);
gtk_status_icon_set_from_file(tray, icon_file);
free(icon_file);
gtk_status_icon_set_has_tooltip (tray, TRUE);
g_signal_connect(G_OBJECT(tray), "query-tooltip", GTK_SIGNAL_FUNC(update_tooltip), NULL);
g_timeout_add(5000, update_icon, NULL);
}
/***********************************************************************
* Free memory allocated in bat_tray_init()
**********************************************************************/
void bat_tray_end()
{
free(CHARGE_VALUE_PATH);
free(CHARGE_STATE_PATH);
}
/***********************************************************************
* Show the battery tray
**********************************************************************/
void bat_tray_show()
{
debug("Showing tray\n");
gtk_status_icon_set_visible(tray, TRUE);
}
/***********************************************************************
* Hide the battery tray
**********************************************************************/
void bat_tray_hide()
{
debug("Hiding tray\n");
gtk_status_icon_set_visible(tray, FALSE);
}
/***********************************************************************
* Return the battery state
**********************************************************************/
int get_battery_state()
{
if (file_has_line(CHARGE_STATE_PATH, "Discharging"))
{
debug("Battery discharging\n");
return STATE_DISCHARGING;
}
if (file_has_line(CHARGE_STATE_PATH, "Full"))
{
debug("Battery full\n");
return STATE_CHARGED;
}
if (file_has_line(CHARGE_STATE_PATH, "Charging"))
{
debug("Battery charging\n");
return STATE_CHARGING;
}
debug("Fallthrough: unknown status\n");
return STATE_UNKNOWN;
}
/***********************************************************************
* Get the number of the first (who has more than one?) battery
* Returns -1 if no battery present
**********************************************************************/
int get_bat_num()
{
FILE* fd;
char* file;
unsigned int i;
for(i = 0; i < 10; i++)
{
asprintf(&file, "/sys/class/power_supply/BAT%d/present", i);
debug("Attempting to open '%s'\n",file);
if( (fd = fopen(file, "r")) )
{
debug("Found battery %d\n",i);
if (fgetc(fd) == '1')
{
debug("Battery %d is present\n",i);
fclose(fd);
free(file);
return i;
}
}
}
debug("Fallthrough: couldn't find battery\n");
free(file);
return -1;
}
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