static void
got_power_proxy_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
GError *error = NULL;
CcScreenPanelPrivate *priv = CC_SCREEN_PANEL (user_data)->priv;
priv->proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (priv->proxy == NULL)
{
g_printerr ("Error creating proxy: %s\n", error->message);
g_error_free (error);
return;
}
/* we want to change the bar if the user presses brightness buttons */
g_signal_connect (priv->proxy,
"g-signal",
G_CALLBACK (on_signal),
user_data);
/* get the initial state */
g_dbus_proxy_call (priv->proxy,
"GetPercentage",
NULL,
G_DBUS_CALL_FLAGS_NONE,
200, /* we don't want to randomly move the bar */
priv->cancellable,
get_brightness_cb,
user_data);
}
static void
on_signal (GDBusProxy *proxy,
gchar *sender_name,
gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
CcScreenPanel *self = CC_SCREEN_PANEL (user_data);
if (g_strcmp0 (signal_name, "Changed") == 0)
{
/* changed, but ignoring */
if (self->priv->setting_brightness)
return;
/* retrieve the value again from g-s-d */
g_dbus_proxy_call (self->priv->proxy,
"GetPercentage",
NULL,
G_DBUS_CALL_FLAGS_NONE,
200, /* we don't want to randomly move the bar */
self->priv->cancellable,
get_brightness_cb,
user_data);
}
}
static void
get_brightness_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
GError *error = NULL;
GVariant *result;
guint brightness;
GtkRange *range;
CcScreenPanel *self = CC_SCREEN_PANEL (user_data);
result = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
if (result == NULL)
{
gtk_widget_hide (WID ("screen_brightness_hscale"));
gtk_widget_hide (WID ("screen_auto_reduce_checkbutton"));
gtk_widget_hide (WID ("brightness-frame"));
g_object_set (G_OBJECT (WID ("turn-off-alignment")), "left-padding", 0, NULL);
g_warning ("Error getting brightness: %s", error->message);
g_error_free (error);
return;
}
/* set the slider */
g_variant_get (result,
"(u)",
&brightness);
range = GTK_RANGE (WID ("screen_brightness_hscale"));
gtk_range_set_range (range, 0, 100);
gtk_range_set_increments (range, 1, 10);
gtk_range_set_value (range, brightness);
g_signal_connect (range,
"value-changed",
G_CALLBACK (brightness_slider_value_changed_cb),
user_data);
g_variant_unref (result);
}
static void
cc_screen_panel_finalize (GObject *object)
{
CcScreenPanelPrivate *priv = CC_SCREEN_PANEL (object)->priv;
g_cancellable_cancel (priv->cancellable);
G_OBJECT_CLASS (cc_screen_panel_parent_class)->finalize (object);
}
static void
set_brightness_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
GError *error = NULL;
GVariant *result;
CcScreenPanelPrivate *priv = CC_SCREEN_PANEL (user_data)->priv;
/* not setting, so pay attention to changed signals */
priv->setting_brightness = FALSE;
result = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
if (result == NULL)
{
g_printerr ("Error setting brightness: %s\n", error->message);
g_error_free (error);
return;
}
}
static void
cc_screen_panel_dispose (GObject *object)
{
CcScreenPanelPrivate *priv = CC_SCREEN_PANEL (object)->priv;
if (priv->lock_settings)
{
g_object_unref (priv->lock_settings);
priv->lock_settings = NULL;
}
if (priv->gsd_settings)
{
g_object_unref (priv->gsd_settings);
priv->gsd_settings = NULL;
}
if (priv->session_settings)
{
g_object_unref (priv->session_settings);
priv->session_settings = NULL;
}
if (priv->lockdown_settings)
{
g_object_unref (priv->lockdown_settings);
priv->lockdown_settings = NULL;
}
if (priv->cancellable != NULL)
{
g_cancellable_cancel (priv->cancellable);
g_object_unref (priv->cancellable);
priv->cancellable = NULL;
}
if (priv->builder != NULL)
{
g_object_unref (priv->builder);
priv->builder = NULL;
}
if (priv->proxy != NULL)
{
g_object_unref (priv->proxy);
priv->proxy = NULL;
}
G_OBJECT_CLASS (cc_screen_panel_parent_class)->dispose (object);
}
static void
brightness_slider_value_changed_cb (GtkRange *range, gpointer user_data)
{
guint percentage;
CcScreenPanelPrivate *priv = CC_SCREEN_PANEL (user_data)->priv;
/* do not loop */
if (priv->setting_brightness)
return;
priv->setting_brightness = TRUE;
/* push this to g-p-m */
percentage = (guint) gtk_range_get_value (range);
g_dbus_proxy_call (priv->proxy,
"SetPercentage",
g_variant_new ("(u)",
percentage),
G_DBUS_CALL_FLAGS_NONE,
-1,
priv->cancellable,
set_brightness_cb,
user_data);
}
