[gnome-control-center] wacom: Add command line argument support for choosing the tablet

[Joaquim Manuel Pereira Rocha <jrocha src gnome org>]

commit e45bafaacbbcd5a915e306c64fbb391aa50a3e5e
Author: Joaquim Rocha <jrocha redhat com>
Date:   Tue May 14 12:20:55 2013 +0200

    wacom: Add command line argument support for choosing the tablet
    
    https://bugzilla.gnome.org/show_bug.cgi?id=692816

 panels/wacom/cc-wacom-panel.c |   80 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 80 insertions(+), 0 deletions(-)
---
diff --git a/panels/wacom/cc-wacom-panel.c b/panels/wacom/cc-wacom-panel.c
index 2bbbeac..6c57666 100644
--- a/panels/wacom/cc-wacom-panel.c
+++ b/panels/wacom/cc-wacom-panel.c
@@ -60,6 +60,70 @@ enum {
        PLUG_IN_PAGE = 0,
 };
 
+enum {
+       PROP_0,
+       PROP_PARAMETERS
+};
+
+static CcWacomPage *
+set_device_page (CcWacomPanel *self, const gchar *device_name)
+{
+       CcWacomPanelPrivate *priv;
+       CcWacomPage *page;
+       gint current;
+
+       priv = self->priv;
+
+       if (device_name == NULL)
+               return NULL;
+
+       /* Choose correct device */
+       page = g_hash_table_lookup (priv->pages, device_name);
+
+       if (page == NULL) {
+               g_warning ("Failed to find device '%s', supplied in the command line.", device_name);
+               return page;
+       }
+
+       current = gtk_notebook_page_num (GTK_NOTEBOOK (priv->notebook), GTK_WIDGET (page));
+       gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->notebook), current);
+
+       return page;
+}
+
+static void
+run_operation_from_params (CcWacomPanel *self, GVariant *parameters)
+{
+       GVariant *v;
+       const gchar *device_name = NULL;
+       gint n_params;
+
+       n_params = g_variant_n_children (parameters);
+
+       g_variant_get_child (parameters, 1, "v", &v);
+       device_name = g_variant_get_string (v, NULL);
+
+       if (!g_variant_is_of_type (v, G_VARIANT_TYPE_STRING)) {
+               g_warning ("Wrong type for the second argument GVariant, expected 's' but got '%s'",
+                          g_variant_get_type_string (v));
+               g_variant_unref (v);
+
+               return;
+       }
+
+       g_variant_unref (v);
+
+       switch (n_params) {
+               case 2:
+                       set_device_page (self, device_name);
+                       break;
+               case 1:
+                       g_assert_not_reached ();
+               default:
+                       g_warning ("Unexpected number of parameters found: %d. Request ignored.", n_params);
+       }
+}
+
 /* Boilerplate code goes below */
 
 static void
@@ -81,8 +145,22 @@ cc_wacom_panel_set_property (GObject      *object,
                              const GValue *value,
                              GParamSpec   *pspec)
 {
+       CcWacomPanel *self;
+       self = CC_WACOM_PANEL (object);
+
        switch (property_id)
        {
+               case PROP_PARAMETERS: {
+                       GVariant *parameters;
+
+                       parameters = g_value_get_variant (value);
+                       if (parameters == NULL || g_variant_n_children (parameters) <= 1)
+                               return;
+
+                       run_operation_from_params (self, parameters);
+
+                       break;
+               }
                default:
                        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        }
@@ -140,6 +218,8 @@ cc_wacom_panel_class_init (CcWacomPanelClass *klass)
        object_class->dispose = cc_wacom_panel_dispose;
 
        panel_class->get_help_uri = cc_wacom_panel_get_help_uri;
+
+       g_object_class_override_property (object_class, PROP_PARAMETERS, "parameters");
 }
 
 static void