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#include "indicator-printers-menu.h"
#include <gio/gio.h>
#include <cups/cups.h>
#include "cups-notifier.h"
G_DEFINE_TYPE (IndicatorPrintersMenu, indicator_printers_menu, G_TYPE_OBJECT)
#define PRINTERS_MENU_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), INDICATOR_TYPE_PRINTERS_MENU, IndicatorPrintersMenuPrivate))
struct _IndicatorPrintersMenuPrivate
{
DbusmenuMenuitem *root;
GHashTable *printers; /* printer name -> dbusmenuitem */
CupsNotifier *cups_notifier;
};
static void
dispose (GObject *object)
{
IndicatorPrintersMenuPrivate *priv = PRINTERS_MENU_PRIVATE (object);
if (priv->printers) {
g_hash_table_unref (priv->printers);
priv->printers = NULL;
}
g_clear_object (&priv->root);
g_clear_object (&priv->cups_notifier);
G_OBJECT_CLASS (indicator_printers_menu_parent_class)->dispose (object);
}
static void
indicator_printers_menu_class_init (IndicatorPrintersMenuClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (IndicatorPrintersMenuPrivate));
object_class->dispose = dispose;
}
static int
get_number_of_active_jobs (const gchar *printer)
{
int njobs;
cups_job_t *jobs;
njobs = cupsGetJobs (&jobs, printer, 1, CUPS_WHICHJOBS_ACTIVE);
cupsFreeJobs (njobs, jobs);
return njobs;
}
static void
show_system_settings (DbusmenuMenuitem *menuitem,
guint timestamp,
gpointer user_data)
{
GAppInfo *appinfo;
GError *err = NULL;
const gchar *printer = user_data;
gchar *cmdline;
cmdline = g_strdup_printf ("gnome-control-center printers show-printer %s",
printer);
appinfo = g_app_info_create_from_commandline (cmdline,
"gnome-control-center",
G_APP_INFO_CREATE_SUPPORTS_STARTUP_NOTIFICATION,
&err);
g_free (cmdline);
if (err) {
g_warning ("failed to create application info: %s", err->message);
g_error_free (err);
return;
}
g_app_info_launch (appinfo, NULL, NULL, &err);
if (err) {
g_warning ("failed to launch gnome-control-center: %s", err->message);
g_error_free (err);
}
g_object_unref (appinfo);
}
static void
update_printer_menuitem (IndicatorPrintersMenu *self,
const char *printer,
int state,
int njobs)
{
IndicatorPrintersMenuPrivate *priv = PRINTERS_MENU_PRIVATE (self);
DbusmenuMenuitem *item;
item = g_hash_table_lookup (priv->printers, printer);
if (!item) {
item = dbusmenu_menuitem_new ();
dbusmenu_menuitem_property_set (item, "type", "indicator-item");
dbusmenu_menuitem_property_set (item, "indicator-icon-name", "printer");
dbusmenu_menuitem_property_set (item, "indicator-label", printer);
g_signal_connect_data (item, "item-activated",
G_CALLBACK (show_system_settings),
g_strdup (printer), (GClosureNotify) g_free, 0);
dbusmenu_menuitem_child_append(priv->root, item);
g_hash_table_insert (priv->printers, g_strdup (printer), item);
}
if (njobs == 0) {
dbusmenu_menuitem_property_set_bool (item, "visible", FALSE);
return;
}
dbusmenu_menuitem_property_set_bool (item, "visible", TRUE);
switch (state) {
case IPP_PRINTER_STOPPED:
dbusmenu_menuitem_property_set (item, "indicator-right", "Paused");
dbusmenu_menuitem_property_set_bool (item, "indicator-right-is-lozenge", FALSE);
break;
case IPP_PRINTER_PROCESSING: {
gchar *jobstr = g_strdup_printf ("%d", njobs);
dbusmenu_menuitem_property_set (item, "indicator-right", jobstr);
dbusmenu_menuitem_property_set_bool (item, "indicator-right-is-lozenge", TRUE);
g_free (jobstr);
break;
}
}
}
static void
update_job (CupsNotifier *cups_notifier,
const gchar *text,
const gchar *printer_uri,
const gchar *printer_name,
guint printer_state,
const gchar *printer_state_reasons,
gboolean printer_is_accepting_jobs,
guint job_id,
guint job_state,
const gchar *job_state_reasons,
const gchar *job_name,
guint job_impressions_completed,
gpointer user_data)
{
IndicatorPrintersMenu *self = INDICATOR_PRINTERS_MENU (user_data);
update_printer_menuitem (self,
printer_name,
printer_state,
get_number_of_active_jobs (printer_name));
}
static void
on_printer_state_changed (CupsNotifier *object,
const gchar *text,
const gchar *printer_uri,
const gchar *printer_name,
guint printer_state,
const gchar *printer_state_reasons,
gboolean printer_is_accepting_jobs,
gpointer user_data)
{
IndicatorPrintersMenu *self = INDICATOR_PRINTERS_MENU (user_data);
update_printer_menuitem (self,
printer_name,
printer_state,
get_number_of_active_jobs (printer_name));
}
static void
indicator_printers_menu_init (IndicatorPrintersMenu *self)
{
IndicatorPrintersMenuPrivate *priv = PRINTERS_MENU_PRIVATE (self);
int ndests, i;
cups_dest_t *dests;
GError *error = NULL;
priv->root = dbusmenu_menuitem_new ();
priv->printers = g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
g_object_unref);
priv->cups_notifier = cups_notifier_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
0,
NULL,
"/org/cups/cupsd/Notifier",
NULL,
&error);
if (error) {
g_warning ("Error creating cups notify handler: %s", error->message);
g_clear_error (&error);
}
else {
g_signal_connect (priv->cups_notifier, "job-created",
G_CALLBACK (update_job), self);
g_signal_connect (priv->cups_notifier, "job-state",
G_CALLBACK (update_job), self);
g_signal_connect (priv->cups_notifier, "job-completed",
G_CALLBACK (update_job), self);
g_signal_connect (priv->cups_notifier, "printer-state-changed",
G_CALLBACK (on_printer_state_changed), self);
}
/* create initial menu items */
ndests = cupsGetDests (&dests);
for (i = 0; i < ndests; i++) {
int state = atoi (cupsGetOption ("printer-state",
dests[i].num_options,
dests[i].options));
update_printer_menuitem (self,
dests[i].name,
state,
get_number_of_active_jobs (dests[i].name));
}
cupsFreeDests (ndests, dests);
}
IndicatorPrintersMenu *
indicator_printers_menu_new (void)
{
return g_object_new (INDICATOR_TYPE_PRINTERS_MENU, NULL);
}
DbusmenuMenuitem *
indicator_printers_menu_get_root (IndicatorPrintersMenu *self)
{
IndicatorPrintersMenuPrivate *priv = PRINTERS_MENU_PRIVATE (self);
return priv->root;
}
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