input-device: Add vendor/product ID properties and getters

This may be useful when trying to identify the device across sessions.

https://bugzilla.gnome.org/show_bug.cgi?id=740759

clutter/clutter-device-manager-private.h

@@ -129,6 +129,9 @@ struct _ClutterInputDevice
 
   GArray *scroll_info;
 
+  gchar *vendor_id;
+  gchar *product_id;
+
   guint has_cursor : 1;
   guint is_enabled : 1;
 };

clutter/clutter-input-device.c

@@ -66,6 +66,9 @@ enum
 
   PROP_N_AXES,
 
+  PROP_VENDOR_ID,
+  PROP_PRODUCT_ID,
+
   PROP_LAST
 };
 
@@ -82,6 +85,8 @@ clutter_input_device_dispose (GObject *gobject)
   ClutterInputDevice *device = CLUTTER_INPUT_DEVICE (gobject);
 
   g_clear_pointer (&device->device_name, g_free);
+  g_clear_pointer (&device->vendor_id, g_free);
+  g_clear_pointer (&device->product_id, g_free);
 
   if (device->associated != NULL)
     {
@@ -156,6 +161,14 @@ clutter_input_device_set_property (GObject      *gobject,
       clutter_input_device_set_enabled (self, g_value_get_boolean (value));
       break;
 
+    case PROP_VENDOR_ID:
+      self->vendor_id = g_value_dup_string (value);
+      break;
+
+    case PROP_PRODUCT_ID:
+      self->product_id = g_value_dup_string (value);
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
       break;
@@ -208,6 +221,14 @@ clutter_input_device_get_property (GObject    *gobject,
       g_value_set_boolean (value, self->is_enabled);
       break;
 
+    case PROP_VENDOR_ID:
+      g_value_set_string (value, self->vendor_id);
+      break;
+
+    case PROP_PRODUCT_ID:
+      g_value_set_string (value, self->product_id);
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
       break;
@@ -357,6 +378,34 @@ clutter_input_device_class_init (ClutterInputDeviceClass *klass)
                          CLUTTER_TYPE_BACKEND,
                          CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
 
+  /**
+   * ClutterInputDevice:vendor-id:
+   *
+   * Vendor ID of this device.
+   *
+   * Since: 1.22
+   */
+  obj_props[PROP_VENDOR_ID] =
+    g_param_spec_string ("vendor-id",
+                         P_("Vendor ID"),
+                         P_("Vendor ID"),
+                         NULL,
+                         CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
+
+  /**
+   * ClutterInputDevice:product-id:
+   *
+   * Product ID of this device.
+   *
+   * Since: 1.22
+   */
+  obj_props[PROP_PRODUCT_ID] =
+    g_param_spec_string ("product-id",
+                         P_("Product ID"),
+                         P_("Product ID"),
+                         NULL,
+                         CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
+
   gobject_class->dispose = clutter_input_device_dispose;
   gobject_class->set_property = clutter_input_device_set_property;
   gobject_class->get_property = clutter_input_device_get_property;
@@ -1887,3 +1936,41 @@ clutter_input_device_sequence_get_grabbed_actor (ClutterInputDevice   *device,
 
   return g_hash_table_lookup (device->sequence_grab_actors, sequence);
 }
+
+/**
+ * clutter_input_device_get_vendor_id:
+ * @device: a slave #ClutterInputDevice
+ *
+ * Gets the vendor ID of this device.
+ *
+ * Returns: the vendor ID
+ *
+ * Since: 1.22
+ */
+const gchar *
+clutter_input_device_get_vendor_id (ClutterInputDevice *device)
+{
+  g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), NULL);
+  g_return_val_if_fail (clutter_input_device_get_device_mode (device) != CLUTTER_INPUT_MODE_MASTER, NULL);
+
+  return device->vendor_id;
+}
+
+/**
+ * clutter_input_device_get_product_id:
+ * @device: a slave #ClutterInputDevice
+ *
+ * Gets the product ID of this device.
+ *
+ * Returns: the product ID
+ *
+ * Since: 1.22
+ */
+const gchar *
+clutter_input_device_get_product_id (ClutterInputDevice *device)
+{
+  g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), NULL);
+  g_return_val_if_fail (clutter_input_device_get_device_mode (device) != CLUTTER_INPUT_MODE_MASTER, NULL);
+
+  return device->product_id;
+}

clutter/clutter-input-device.h

@@ -135,6 +135,11 @@ gboolean                clutter_input_device_keycode_to_evdev   (ClutterInputDev
                                                                  guint               hardware_keycode,
                                                                  guint              *evdev_keycode);
 
+CLUTTER_AVAILABLE_IN_1_22
+const gchar *           clutter_input_device_get_vendor_id      (ClutterInputDevice *device);
+CLUTTER_AVAILABLE_IN_1_22
+const gchar *           clutter_input_device_get_product_id     (ClutterInputDevice *device);
+
 G_END_DECLS
 
 #endif /* __CLUTTER_INPUT_DEVICE_H__ */

doc/reference/clutter/clutter-sections.txt

@@ -1201,6 +1201,8 @@ clutter_input_device_get_associated_device
 clutter_input_device_get_slave_devices
 clutter_input_device_get_modifier_state
 clutter_input_device_keycode_to_evdev
+clutter_input_device_get_vendor_id
+clutter_input_device_get_product_id
 
 <SUBSECTION>
 clutter_input_device_get_n_keys