/**
* st_button_fake_release:
* @button: an #StButton
*
* If this widget is holding a pointer grab, this function will
* will ungrab it, and reset the pressed state. The effect is
* similar to if the user had released the mouse button, but without
* emitting the clicked signal.
*
* This function is useful if for example you want to do something
* after the user is holding the mouse button for a given period of
* time, breaking the grab.
*/
void
st_button_fake_release (StButton *button)
{
StButtonPrivate *priv;
g_return_if_fail (ST_IS_BUTTON (button));
priv = st_button_get_instance_private (button);
if (priv->device && priv->press_sequence)
{
clutter_input_device_sequence_ungrab (priv->device,
priv->press_sequence);
}
if (priv->pressed || priv->press_sequence)
st_button_release (button, priv->device,
priv->pressed, 0, NULL);
if (priv->grabbed)
{
priv->grabbed = 0;
clutter_ungrab_pointer ();
}
priv->device = NULL;
}
static gboolean
st_button_touch_event (ClutterActor *actor,
ClutterTouchEvent *event)
{
StButton *button = ST_BUTTON (actor);
StButtonPrivate *priv = st_button_get_instance_private (button);
StButtonMask mask = ST_BUTTON_MASK_FROM_BUTTON (1);
ClutterEventSequence *sequence;
ClutterInputDevice *device;
if (priv->pressed != 0)
return CLUTTER_EVENT_PROPAGATE;
device = clutter_event_get_device ((ClutterEvent*) event);
sequence = clutter_event_get_event_sequence ((ClutterEvent*) event);
if (event->type == CLUTTER_TOUCH_BEGIN && !priv->press_sequence)
{
clutter_input_device_sequence_grab (device, sequence, actor);
st_button_press (button, device, 0, sequence);
return CLUTTER_EVENT_STOP;
}
else if (event->type == CLUTTER_TOUCH_END &&
priv->device == device &&
priv->press_sequence == sequence)
{
st_button_release (button, device, mask, 0, sequence);
clutter_input_device_sequence_ungrab (device, sequence);
return CLUTTER_EVENT_STOP;
}
return CLUTTER_EVENT_PROPAGATE;
}
