LongPressController: add 'pressed' signal with x and y coordinates

The 'pressed' signal does emit the x and y coordinates
of the position where the event occurred. This can be used
for example in the Browser where we need to know at which
exact position the long-press event occurred.

Signed-off-by: Carlos Garnacho <carlos@lanedo.com>
Acked-by: Simon Schampijer <simon@laptop.org>

src/sugar3/event-controller/sugar-long-press-controller.c

@@ -34,6 +34,11 @@ enum {
   PROP_TRIGGER_DELAY
 };
 
+enum {
+  PRESSED,
+  N_SIGNALS
+};
+
 struct _SugarLongPressControllerPriv
 {
   GdkDevice *device;
@@ -52,6 +57,8 @@ struct _SugarLongPressControllerPriv
   guint triggered : 1;
 };
 
+static guint signals[N_SIGNALS] = { 0 };
+
 G_DEFINE_TYPE (SugarLongPressController,
                sugar_long_press_controller,
                SUGAR_TYPE_EVENT_CONTROLLER)
@@ -321,6 +328,8 @@ _sugar_long_press_controller_timeout (gpointer user_data)
   priv->triggered = TRUE;
   g_signal_emit_by_name (controller, "began");
 
+  g_signal_emit (controller, signals[PRESSED], 0, priv->x, priv->y);
+
   return FALSE;
 }
 
@@ -462,6 +471,15 @@ sugar_long_press_controller_class_init (SugarLongPressControllerClass *klass)
                                                       G_PARAM_STATIC_NAME |
                                                       G_PARAM_STATIC_NICK |
                                                       G_PARAM_STATIC_BLURB));
+  signals[PRESSED] =
+    g_signal_new ("pressed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  G_STRUCT_OFFSET (SugarLongPressControllerClass, pressed),
+                  NULL, NULL,
+                  g_cclosure_marshal_generic,
+                  G_TYPE_NONE, 2,
+                  G_TYPE_INT, G_TYPE_INT);
 
   g_type_class_add_private (klass, sizeof (SugarLongPressControllerPriv));
 }

src/sugar3/event-controller/sugar-long-press-controller.h

@@ -50,6 +50,10 @@ struct _SugarLongPressController
 struct _SugarLongPressControllerClass
 {
   SugarEventControllerClass parent_class;
+
+  void (* pressed) (SugarLongPressController *controller,
+                    gint                      x,
+                    gint                      y);
 };
 
 GType                  sugar_long_press_controller_get_type (void) G_GNUC_CONST;