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|
/*
The indicator application visualization object. It takes the information
given by the service and turns it into real-world pixels that users can
actually use. Well, GTK does that, but this asks nicely.
Copyright 2009 Canonical Ltd.
Authors:
Ted Gould <ted@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* G Stuff */
#include <glib.h>
#include <glib-object.h>
#include <gtk/gtk.h>
/* DBus Stuff */
#include <dbus/dbus-glib.h>
#include <libdbusmenu-gtk/menu.h>
/* Indicator Stuff */
#include <libindicator/indicator.h>
#include <libindicator/indicator-object.h>
#include <libindicator/indicator-service-manager.h>
#include <libindicator/indicator-image-helper.h>
/* Local Stuff */
#include "dbus-shared.h"
#include "application-service-client.h"
#include "application-service-marshal.h"
#define PANEL_ICON_SUFFIX "panel"
#define INDICATOR_APPLICATION_TYPE (indicator_application_get_type ())
#define INDICATOR_APPLICATION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), INDICATOR_APPLICATION_TYPE, IndicatorApplication))
#define INDICATOR_APPLICATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), INDICATOR_APPLICATION_TYPE, IndicatorApplicationClass))
#define IS_INDICATOR_APPLICATION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), INDICATOR_APPLICATION_TYPE))
#define IS_INDICATOR_APPLICATION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), INDICATOR_APPLICATION_TYPE))
#define INDICATOR_APPLICATION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), INDICATOR_APPLICATION_TYPE, IndicatorApplicationClass))
typedef struct _IndicatorApplication IndicatorApplication;
typedef struct _IndicatorApplicationClass IndicatorApplicationClass;
struct _IndicatorApplicationClass {
IndicatorObjectClass parent_class;
};
struct _IndicatorApplication {
IndicatorObject parent;
};
GType indicator_application_get_type (void);
INDICATOR_SET_VERSION
INDICATOR_SET_TYPE(INDICATOR_APPLICATION_TYPE)
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
typedef struct _IndicatorApplicationPrivate IndicatorApplicationPrivate;
struct _IndicatorApplicationPrivate {
IndicatorServiceManager * sm;
DBusGConnection * bus;
DBusGProxy * service_proxy;
GList * applications;
GHashTable * theme_dirs;
guint disconnect_kill;
};
typedef struct _ApplicationEntry ApplicationEntry;
struct _ApplicationEntry {
IndicatorObjectEntry entry;
gchar * icon_path;
gboolean old_service;
gchar * dbusobject;
gchar * dbusaddress;
};
#define INDICATOR_APPLICATION_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), INDICATOR_APPLICATION_TYPE, IndicatorApplicationPrivate))
static void indicator_application_class_init (IndicatorApplicationClass *klass);
static void indicator_application_init (IndicatorApplication *self);
static void indicator_application_dispose (GObject *object);
static void indicator_application_finalize (GObject *object);
static GList * get_entries (IndicatorObject * io);
static guint get_location (IndicatorObject * io, IndicatorObjectEntry * entry);
void connection_changed (IndicatorServiceManager * sm, gboolean connected, IndicatorApplication * application);
static void connected (IndicatorApplication * application);
static void disconnected (IndicatorApplication * application);
static void disconnected_helper (gpointer data, gpointer user_data);
static gboolean disconnected_kill (gpointer user_data);
static void disconnected_kill_helper (gpointer data, gpointer user_data);
static void application_added (DBusGProxy * proxy, const gchar * iconname, gint position, const gchar * dbusaddress, const gchar * dbusobject, const gchar * icon_path, const gchar * label, const gchar * guide, IndicatorApplication * application);
static void application_removed (DBusGProxy * proxy, gint position , IndicatorApplication * application);
static void application_label_changed (DBusGProxy * proxy, gint position, const gchar * label, const gchar * guide, IndicatorApplication * application);
static void application_icon_changed (DBusGProxy * proxy, gint position, const gchar * iconname, IndicatorApplication * application);
static void get_applications (DBusGProxy *proxy, GPtrArray *OUT_applications, GError *error, gpointer userdata);
static void get_applications_helper (gpointer data, gpointer user_data);
static void theme_dir_unref(IndicatorApplication * ia, const gchar * dir);
static void theme_dir_ref(IndicatorApplication * ia, const gchar * dir);
G_DEFINE_TYPE (IndicatorApplication, indicator_application, INDICATOR_OBJECT_TYPE);
static void
indicator_application_class_init (IndicatorApplicationClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (IndicatorApplicationPrivate));
object_class->dispose = indicator_application_dispose;
object_class->finalize = indicator_application_finalize;
IndicatorObjectClass * io_class = INDICATOR_OBJECT_CLASS(klass);
io_class->get_entries = get_entries;
io_class->get_location = get_location;
dbus_g_object_register_marshaller(_application_service_marshal_VOID__STRING_INT_STRING_STRING_STRING_STRING_STRING,
G_TYPE_NONE,
G_TYPE_STRING,
G_TYPE_INT,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_object_register_marshaller(_application_service_marshal_VOID__INT_STRING,
G_TYPE_NONE,
G_TYPE_INT,
G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_object_register_marshaller(_application_service_marshal_VOID__INT_STRING_STRING,
G_TYPE_NONE,
G_TYPE_INT,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_INVALID);
return;
}
static void
indicator_application_init (IndicatorApplication *self)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(self);
/* These are built in the connection phase */
priv->bus = NULL;
priv->service_proxy = NULL;
priv->theme_dirs = NULL;
priv->disconnect_kill = 0;
priv->sm = indicator_service_manager_new(INDICATOR_APPLICATION_DBUS_ADDR);
g_signal_connect(G_OBJECT(priv->sm), INDICATOR_SERVICE_MANAGER_SIGNAL_CONNECTION_CHANGE, G_CALLBACK(connection_changed), self);
priv->applications = NULL;
priv->theme_dirs = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
return;
}
static void
indicator_application_dispose (GObject *object)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(object);
if (priv->disconnect_kill != 0) {
g_source_remove(priv->disconnect_kill);
}
while (priv->applications != NULL) {
application_removed(priv->service_proxy,
0,
INDICATOR_APPLICATION(object));
}
if (priv->sm != NULL) {
g_object_unref(priv->sm);
priv->sm = NULL;
}
if (priv->bus != NULL) {
/* We're not incrementing the ref count on this one. */
priv->bus = NULL;
}
if (priv->service_proxy != NULL) {
g_object_unref(G_OBJECT(priv->service_proxy));
priv->service_proxy = NULL;
}
if (priv->theme_dirs != NULL) {
while (g_hash_table_size(priv->theme_dirs)) {
GList * keys = g_hash_table_get_keys(priv->theme_dirs);
theme_dir_unref(INDICATOR_APPLICATION(object), (gchar *)keys->data);
}
g_hash_table_destroy(priv->theme_dirs);
priv->theme_dirs = NULL;
}
G_OBJECT_CLASS (indicator_application_parent_class)->dispose (object);
return;
}
static void
indicator_application_finalize (GObject *object)
{
G_OBJECT_CLASS (indicator_application_parent_class)->finalize (object);
return;
}
/* Responds to connection change event from the service manager and
splits it into two. */
void
connection_changed (IndicatorServiceManager * sm, gboolean connect, IndicatorApplication * application)
{
g_return_if_fail(IS_INDICATOR_APPLICATION(application));
if (connect) {
connected(application);
} else {
disconnected(application);
}
return;
}
/* Brings up the connection to a service that has just come onto the
bus, or is atleast new to us. */
void
connected (IndicatorApplication * application)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
g_debug("Connected to Application Indicator Service.");
GError * error = NULL;
/* Grab the session bus */
if (priv->bus == NULL) {
priv->bus = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
if (error != NULL) {
g_error("Unable to get session bus: %s", error->message);
g_error_free(error);
return;
}
}
if (priv->service_proxy == NULL) {
/* Build the service proxy */
priv->service_proxy = dbus_g_proxy_new_for_name(priv->bus,
INDICATOR_APPLICATION_DBUS_ADDR,
INDICATOR_APPLICATION_DBUS_OBJ,
INDICATOR_APPLICATION_DBUS_IFACE);
/* Set up proxy signals */
g_debug("Setup proxy signals");
dbus_g_proxy_add_signal(priv->service_proxy,
"ApplicationAdded",
G_TYPE_STRING,
G_TYPE_INT,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_proxy_add_signal(priv->service_proxy,
"ApplicationRemoved",
G_TYPE_INT,
G_TYPE_INVALID);
dbus_g_proxy_add_signal(priv->service_proxy,
"ApplicationIconChanged",
G_TYPE_INT,
G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_proxy_add_signal(priv->service_proxy,
"ApplicationLabelChanged",
G_TYPE_INT,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_INVALID);
/* Connect to them */
g_debug("Connect to them.");
dbus_g_proxy_connect_signal(priv->service_proxy,
"ApplicationAdded",
G_CALLBACK(application_added),
application,
NULL /* Disconnection Signal */);
dbus_g_proxy_connect_signal(priv->service_proxy,
"ApplicationRemoved",
G_CALLBACK(application_removed),
application,
NULL /* Disconnection Signal */);
dbus_g_proxy_connect_signal(priv->service_proxy,
"ApplicationIconChanged",
G_CALLBACK(application_icon_changed),
application,
NULL /* Disconnection Signal */);
dbus_g_proxy_connect_signal(priv->service_proxy,
"ApplicationLabelChanged",
G_CALLBACK(application_label_changed),
application,
NULL /* Disconnection Signal */);
}
/* Query it for existing applications */
g_debug("Request current apps");
org_ayatana_indicator_application_service_get_applications_async(priv->service_proxy,
get_applications,
application);
return;
}
/* Marks every current application as belonging to the old
service so that we can delete it if it doesn't come back.
Also, sets up a timeout on comming back. */
static void
disconnected (IndicatorApplication * application)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
g_list_foreach(priv->applications, disconnected_helper, application);
/* I'll like this to be a little shorter, but it's a bit
inpractical to make it so. This means that the user will
probably notice a visible glitch. Though, if applications
are disappearing there isn't much we can do. */
priv->disconnect_kill = g_timeout_add(250, disconnected_kill, application);
return;
}
/* Marks an entry as being from the old service */
static void
disconnected_helper (gpointer data, gpointer user_data)
{
ApplicationEntry * entry = (ApplicationEntry *)data;
entry->old_service = TRUE;
return;
}
/* Makes sure the old applications that don't come back
get dropped. */
static gboolean
disconnected_kill (gpointer user_data)
{
g_return_val_if_fail(IS_INDICATOR_APPLICATION(user_data), FALSE);
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(user_data);
priv->disconnect_kill = 0;
g_list_foreach(priv->applications, disconnected_kill_helper, user_data);
return FALSE;
}
/* Looks for entries that are still associated with the
old service and removes them. */
static void
disconnected_kill_helper (gpointer data, gpointer user_data)
{
g_return_if_fail(IS_INDICATOR_APPLICATION(user_data));
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(user_data);
ApplicationEntry * entry = (ApplicationEntry *)data;
if (entry->old_service) {
application_removed(NULL, g_list_index(priv->applications, data), INDICATOR_APPLICATION(user_data));
}
return;
}
/* Goes through the list of applications that we're maintaining and
pulls out the IndicatorObjectEntry and returns that in a list
for the caller. */
static GList *
get_entries (IndicatorObject * io)
{
g_return_val_if_fail(IS_INDICATOR_APPLICATION(io), NULL);
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(io);
GList * retval = NULL;
GList * apppointer = NULL;
for (apppointer = priv->applications; apppointer != NULL; apppointer = g_list_next(apppointer)) {
IndicatorObjectEntry * entry = &(((ApplicationEntry *)apppointer->data)->entry);
retval = g_list_prepend(retval, entry);
}
if (retval != NULL) {
retval = g_list_reverse(retval);
}
return retval;
}
/* Finds the location of a specific entry */
static guint
get_location (IndicatorObject * io, IndicatorObjectEntry * entry)
{
g_return_val_if_fail(IS_INDICATOR_APPLICATION(io), 0);
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(io);
return g_list_index(priv->applications, entry);
}
/* Searching for ApplicationEntries where the dbusobject and
address are the same. */
static gint
application_added_search (gconstpointer a, gconstpointer b)
{
ApplicationEntry * appa = (ApplicationEntry *)a;
ApplicationEntry * appb = (ApplicationEntry *)b;
if (g_strcmp0(appa->dbusaddress, appb->dbusaddress) == 0 &&
g_strcmp0(appa->dbusobject, appb->dbusobject) == 0) {
return 0;
}
return -1;
}
/* Here we respond to new applications by building up the
ApplicationEntry and signaling the indicator host that
we've got a new indicator. */
static void
application_added (DBusGProxy * proxy, const gchar * iconname, gint position, const gchar * dbusaddress, const gchar * dbusobject, const gchar * icon_path, const gchar * label, const gchar * guide, IndicatorApplication * application)
{
g_return_if_fail(IS_INDICATOR_APPLICATION(application));
g_debug("Building new application entry: %s with icon: %s", dbusaddress, iconname);
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
/* First search to see if we already have this entry */
ApplicationEntry searchapp;
searchapp.dbusaddress = (gchar *)dbusaddress; /* Casting off const, but it's okay, we're not changing it */
searchapp.dbusobject = (gchar *)dbusobject; /* Casting off const, but it's okay, we're not changing it */
GList * searchpointer = g_list_find_custom(priv->applications, &searchapp, application_added_search);
if (searchpointer != NULL) {
g_debug("\t...Already have that one.");
ApplicationEntry * app = (ApplicationEntry *)searchpointer->data;
app->old_service = FALSE;
return;
}
ApplicationEntry * app = g_new(ApplicationEntry, 1);
app->old_service = FALSE;
app->icon_path = NULL;
if (icon_path != NULL && icon_path[0] != '\0') {
app->icon_path = g_strdup(icon_path);
theme_dir_ref(application, icon_path);
}
app->dbusaddress = g_strdup(dbusaddress);
app->dbusobject = g_strdup(dbusobject);
/* We make a long name using the suffix, and if that
icon is available we want to use it. Otherwise we'll
just use the name we were given. */
gchar * longname = NULL;
if (!g_str_has_suffix(iconname, PANEL_ICON_SUFFIX)) {
longname = g_strdup_printf("%s-%s", iconname, PANEL_ICON_SUFFIX);
} else {
longname = g_strdup(iconname);
}
app->entry.image = indicator_image_helper(longname);
g_free(longname);
if (label == NULL || label[0] == '\0') {
app->entry.label = NULL;
} else {
app->entry.label = GTK_LABEL(gtk_label_new(label));
gtk_widget_show(GTK_WIDGET(app->entry.label));
/* TODO: Use guide to size the label better */
}
app->entry.menu = GTK_MENU(dbusmenu_gtkmenu_new((gchar *)dbusaddress, (gchar *)dbusobject));
/* Keep copies of these for ourself, just in case. */
g_object_ref(app->entry.image);
g_object_ref(app->entry.menu);
gtk_widget_show(GTK_WIDGET(app->entry.image));
priv->applications = g_list_insert(priv->applications, app, position);
/* TODO: Need to deal with position here somehow */
g_signal_emit(G_OBJECT(application), INDICATOR_OBJECT_SIGNAL_ENTRY_ADDED_ID, 0, &(app->entry), TRUE);
return;
}
/* This removes the application from the list and free's all
of the memory associated with it. */
static void
application_removed (DBusGProxy * proxy, gint position, IndicatorApplication * application)
{
g_return_if_fail(IS_INDICATOR_APPLICATION(application));
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
ApplicationEntry * app = (ApplicationEntry *)g_list_nth_data(priv->applications, position);
if (app == NULL) {
g_warning("Unable to find application at position: %d", position);
return;
}
priv->applications = g_list_remove(priv->applications, app);
g_signal_emit(G_OBJECT(application), INDICATOR_OBJECT_SIGNAL_ENTRY_REMOVED_ID, 0, &(app->entry), TRUE);
if (app->icon_path != NULL) {
theme_dir_unref(application, app->icon_path);
g_free(app->icon_path);
}
if (app->dbusaddress != NULL) {
g_free(app->dbusaddress);
}
if (app->dbusobject != NULL) {
g_free(app->dbusobject);
}
if (app->entry.image != NULL) {
g_object_unref(G_OBJECT(app->entry.image));
}
if (app->entry.label != NULL) {
g_warning("Odd, an application indicator with a label?");
g_object_unref(G_OBJECT(app->entry.label));
}
if (app->entry.menu != NULL) {
g_object_unref(G_OBJECT(app->entry.menu));
}
g_free(app);
return;
}
/* The callback for the signal that the label for an application
has changed. */
static void
application_label_changed (DBusGProxy * proxy, gint position, const gchar * label, const gchar * guide, IndicatorApplication * application)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
ApplicationEntry * app = (ApplicationEntry *)g_list_nth_data(priv->applications, position);
if (app == NULL) {
g_warning("Unable to find application at position: %d", position);
return;
}
if (app->entry.label != NULL) {
gtk_label_set_text(app->entry.label, label);
} else {
/* TODO: Handle the case where we didn't have a label */
}
return;
}
/* The callback for the signal that the icon for an application
has changed. */
static void
application_icon_changed (DBusGProxy * proxy, gint position, const gchar * iconname, IndicatorApplication * application)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
ApplicationEntry * app = (ApplicationEntry *)g_list_nth_data(priv->applications, position);
if (app == NULL) {
g_warning("Unable to find application at position: %d", position);
return;
}
/* We make a long name using the suffix, and if that
icon is available we want to use it. Otherwise we'll
just use the name we were given. */
gchar * longname = g_strdup_printf("%s-%s", iconname, PANEL_ICON_SUFFIX);
indicator_image_helper_update(app->entry.image, longname);
g_free(longname);
return;
}
/* This repsonds to the list of applications that the service
has and calls application_added on each one of them. */
static void
get_applications (DBusGProxy *proxy, GPtrArray *OUT_applications, GError *error, gpointer userdata)
{
if (error != NULL) {
g_warning("Unable to get application list: %s", error->message);
return;
}
g_ptr_array_foreach(OUT_applications, get_applications_helper, userdata);
return;
}
/* A little helper that takes apart the DBus structure and calls
application_added on every entry in the list. */
static void
get_applications_helper (gpointer data, gpointer user_data)
{
GValueArray * array = (GValueArray *)data;
g_return_if_fail(array->n_values == 5);
const gchar * icon_name = g_value_get_string(g_value_array_get_nth(array, 0));
gint position = g_value_get_int(g_value_array_get_nth(array, 1));
const gchar * dbus_address = g_value_get_string(g_value_array_get_nth(array, 2));
const gchar * dbus_object = g_value_get_boxed(g_value_array_get_nth(array, 3));
const gchar * icon_path = g_value_get_string(g_value_array_get_nth(array, 4));
const gchar * label = g_value_get_string(g_value_array_get_nth(array, 5));
const gchar * guide = g_value_get_string(g_value_array_get_nth(array, 6));
return application_added(NULL, icon_name, position, dbus_address, dbus_object, icon_path, label, guide, user_data);
}
/* Refs a theme directory, and it may add it to the search
path */
static void
theme_dir_unref(IndicatorApplication * ia, const gchar * dir)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(ia);
/* Grab the count for this dir */
int count = GPOINTER_TO_INT(g_hash_table_lookup(priv->theme_dirs, dir));
/* Is this a simple deprecation, if so, we can just lower the
number and move on. */
if (count > 1) {
count--;
g_hash_table_insert(priv->theme_dirs, g_strdup(dir), GINT_TO_POINTER(count));
return;
}
/* Try to remove it from the hash table, this makes sure
that it existed */
if (!g_hash_table_remove(priv->theme_dirs, dir)) {
g_warning("Unref'd a directory that wasn't in the theme dir hash table.");
return;
}
GtkIconTheme * icon_theme = gtk_icon_theme_get_default();
gchar ** paths;
gint path_count;
gtk_icon_theme_get_search_path(icon_theme, &paths, &path_count);
gint i;
gboolean found = FALSE;
for (i = 0; i < path_count; i++) {
if (found) {
/* If we've already found the right entry */
paths[i - 1] = paths[i];
} else {
/* We're still looking, is this the one? */
if (!g_strcmp0(paths[i], dir)) {
found = TRUE;
/* We're freeing this here as it won't be captured by the
g_strfreev() below as it's out of the array. */
g_free(paths[i]);
}
}
}
/* If we found one we need to reset the path to
accomidate the changes */
if (found) {
paths[path_count - 1] = NULL; /* Clear the last one */
gtk_icon_theme_set_search_path(icon_theme, (const gchar **)paths, path_count - 1);
}
g_strfreev(paths);
return;
}
/* Unrefs a theme directory. This may involve removing it from
the search path. */
static void
theme_dir_ref(IndicatorApplication * ia, const gchar * dir)
{
IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(ia);
int count = 0;
if ((count = GPOINTER_TO_INT(g_hash_table_lookup(priv->theme_dirs, dir))) != 0) {
/* It exists so what we need to do is increase the ref
count of this dir. */
count++;
} else {
/* It doesn't exist, so we need to add it to the table
and to the search path. */
gtk_icon_theme_append_search_path(gtk_icon_theme_get_default(), dir);
g_debug("\tAppending search path: %s", dir);
count = 1;
}
g_hash_table_insert(priv->theme_dirs, g_strdup(dir), GINT_TO_POINTER(count));
return;
}
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