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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010 Intel Corporation.
* Copyright (C) 2011 Robert Bosch Car Multimedia GmbH.
* Copyright (C) 2012 Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author:
* Emanuele Aina <emanuele.aina@collabora.com>
*
* Based on ClutterPanAction
* Based on ClutterDragAction, ClutterSwipeAction, and MxKineticScrollView,
* written by:
* Emmanuele Bassi <ebassi@linux.intel.com>
* Tomeu Vizoso <tomeu.vizoso@collabora.co.uk>
* Chris Lord <chris@linux.intel.com>
*/
/**
* SECTION:clutter-tap-action
* @Title: ClutterTapAction
* @Short_Description: Action for tap gestures
*
* #ClutterTapAction is a sub-class of #ClutterGestureAction that implements
* the logic for recognizing mouse clicks and touch tap gestures.
*
* The simplest usage of #ClutterTapAction consists in adding it to
* a #ClutterActor, setting it as reactive and connecting a
* callback for the #ClutterTapAction::tap signal, along the lines of the
* following code:
*
* |[
* clutter_actor_add_action (actor, clutter_tap_action_new ());
* clutter_actor_set_reactive (actor, TRUE);
* g_signal_connect (action, "tap", G_CALLBACK (on_tap_callback), NULL);
* ]|
*
* Since: 1.14
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "clutter-tap-action.h"
#include "clutter-debug.h"
#include "clutter-enum-types.h"
#include "clutter-gesture-action-private.h"
#include "clutter-marshal.h"
#include "clutter-private.h"
enum
{
TAP,
LAST_SIGNAL
};
static guint tap_signals[LAST_SIGNAL] = { 0, };
G_DEFINE_TYPE (ClutterTapAction, clutter_tap_action,
CLUTTER_TYPE_GESTURE_ACTION);
static void
emit_tap (ClutterTapAction *self,
ClutterActor *actor)
{
g_signal_emit (self, tap_signals[TAP], 0, actor);
}
static void
gesture_end (ClutterGestureAction *gesture,
ClutterActor *actor)
{
emit_tap (CLUTTER_TAP_ACTION (gesture), actor);
}
static void
clutter_tap_action_constructed (GObject *object)
{
clutter_gesture_action_set_threshold_trigger_edge (CLUTTER_GESTURE_ACTION (object),
CLUTTER_GESTURE_TRIGGER_EDGE_BEFORE);
}
static void
clutter_tap_action_class_init (ClutterTapActionClass *klass)
{
ClutterGestureActionClass *gesture_class =
CLUTTER_GESTURE_ACTION_CLASS (klass);
GObjectClass *object_class =
G_OBJECT_CLASS (klass);
object_class->constructed = clutter_tap_action_constructed;
gesture_class->gesture_end = gesture_end;
/**
* ClutterTapAction::tap:
* @action: the #ClutterTapAction that emitted the signal
* @actor: the #ClutterActor attached to the @action
*
* The ::tap signal is emitted when the tap gesture is complete.
*
* Since: 1.14
*/
tap_signals[TAP] =
g_signal_new (I_("tap"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterTapActionClass, tap),
NULL, NULL,
_clutter_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
CLUTTER_TYPE_ACTOR);
}
static void
clutter_tap_action_init (ClutterTapAction *self)
{
}
/**
* clutter_tap_action_new:
*
* Creates a new #ClutterTapAction instance
*
* Return value: the newly created #ClutterTapAction
*
* Since: 1.14
*/
ClutterAction *
clutter_tap_action_new (void)
{
return g_object_new (CLUTTER_TYPE_TAP_ACTION, NULL);
}
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