static void
gtk_gesture_multi_press_class_init (GtkGestureMultiPressClass *klass)
{
GtkEventControllerClass *controller_class = GTK_EVENT_CONTROLLER_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkGestureClass *gesture_class = GTK_GESTURE_CLASS (klass);
object_class->finalize = gtk_gesture_multi_press_finalize;
gesture_class->check = gtk_gesture_multi_press_check;
gesture_class->begin = gtk_gesture_multi_press_begin;
gesture_class->update = gtk_gesture_multi_press_update;
gesture_class->end = gtk_gesture_multi_press_end;
gesture_class->cancel = gtk_gesture_multi_press_cancel;
controller_class->reset = gtk_gesture_multi_press_reset;
/**
* GtkGestureMultiPress::pressed:
* @gesture: the object which received the signal
* @n_press: how many touch/button presses happened with this one
* @x: The X coordinate, in widget allocation coordinates
* @y: The Y coordinate, in widget allocation coordinates
*
* This signal is emitted whenever a button or touch press happens.
*
* Since: 3.14
*/
signals[PRESSED] =
g_signal_new (I_("pressed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkGestureMultiPressClass, pressed),
NULL, NULL, NULL,
G_TYPE_NONE, 3, G_TYPE_INT,
G_TYPE_DOUBLE, G_TYPE_DOUBLE);
/**
* GtkGestureMultiPress::released:
* @gesture: the object which received the signal
* @n_press: number of press that is paired with this release
* @x: The X coordinate, in widget allocation coordinates
* @y: The Y coordinate, in widget allocation coordinates
*
* This signal is emitted when a button or touch is released. @n_press
* will report the number of press that is paired to this event, note
* that #GtkGestureMultiPress::stopped may have been emitted between the
* press and its release, @n_press will only start over at the next press.
*
* Since: 3.14
*/
signals[RELEASED] =
g_signal_new (I_("released"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkGestureMultiPressClass, released),
NULL, NULL, NULL,
G_TYPE_NONE, 3, G_TYPE_INT,
G_TYPE_DOUBLE, G_TYPE_DOUBLE);
/**
* GtkGestureMultiPress::stopped:
* @gesture: the object which received the signal
*
* This signal is emitted whenever any time/distance threshold has
* been exceeded.
*
* Since: 3.14
*/
signals[STOPPED] =
g_signal_new (I_("stopped"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkGestureMultiPressClass, stopped),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
static void
gtk_gesture_single_class_init (GtkGestureSingleClass *klass)
{
GtkEventControllerClass *controller_class = GTK_EVENT_CONTROLLER_CLASS (klass);
GtkGestureClass *gesture_class = GTK_GESTURE_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = gtk_gesture_single_get_property;
object_class->set_property = gtk_gesture_single_set_property;
controller_class->handle_event = gtk_gesture_single_handle_event;
gesture_class->cancel = gtk_gesture_single_cancel;
/**
* GtkGestureSingle:touch-only:
*
* Whether the gesture handles only touch events.
*
* Since: 3.14
*/
g_object_class_install_property (object_class,
PROP_TOUCH_ONLY,
g_param_spec_boolean ("touch-only",
P_("Handle only touch events"),
P_("Whether the gesture handles"
" only touch events"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkGestureSingle:exclusive:
*
* Whether the gesture is exclusive. Exclusive gestures only listen to pointer
* and pointer emulated events.
*
* Since: 3.14
*/
g_object_class_install_property (object_class,
PROP_EXCLUSIVE,
g_param_spec_boolean ("exclusive",
P_("Whether the gesture is exclusive"),
P_("Whether the gesture is exclusive"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkGestureSingle:button:
*
* Mouse button number to listen to, or 0 to listen for any button.
*
* Since: 3.14
*/
g_object_class_install_property (object_class,
PROP_BUTTON,
g_param_spec_uint ("button",
P_("Button number"),
P_("Button number to listen to"),
0, G_MAXUINT, GDK_BUTTON_PRIMARY,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
}
static void
gtk_gesture_multi_press_reset (GtkEventController *controller)
{
_gtk_gesture_multi_press_stop (GTK_GESTURE_MULTI_PRESS (controller));
GTK_EVENT_CONTROLLER_CLASS (gtk_gesture_multi_press_parent_class)->reset (controller);
}
static gboolean
gtk_gesture_single_handle_event (GtkEventController *controller,
const GdkEvent *event)
{
GdkEventSequence *sequence = NULL;
GtkGestureSinglePrivate *priv;
GdkDevice *source_device;
GdkInputSource source;
guint button = 0, i;
gboolean retval, test_touchscreen = FALSE;
source_device = gdk_event_get_source_device (event);
if (!source_device)
return FALSE;
priv = gtk_gesture_single_get_instance_private (GTK_GESTURE_SINGLE (controller));
source = gdk_device_get_source (source_device);
if (source != GDK_SOURCE_TOUCHSCREEN)
test_touchscreen = gtk_simulate_touchscreen ();
switch (event->type)
{
case GDK_TOUCH_BEGIN:
case GDK_TOUCH_END:
case GDK_TOUCH_UPDATE:
if (priv->exclusive && !event->touch.emulating_pointer)
return FALSE;
sequence = event->touch.sequence;
button = 1;
break;
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
if (priv->touch_only && !test_touchscreen && source != GDK_SOURCE_TOUCHSCREEN)
return FALSE;
button = event->button.button;
break;
case GDK_MOTION_NOTIFY:
if (!gtk_gesture_handles_sequence (GTK_GESTURE (controller), sequence))
return FALSE;
if (priv->touch_only && !test_touchscreen && source != GDK_SOURCE_TOUCHSCREEN)
return FALSE;
if (priv->current_button > 0 && priv->current_button <= 5 &&
(event->motion.state & (GDK_BUTTON1_MASK << (priv->current_button - 1))))
button = priv->current_button;
else if (priv->current_button == 0)
{
/* No current button, find out from the mask */
for (i = 0; i < 3; i++)
{
if ((event->motion.state & (GDK_BUTTON1_MASK << i)) == 0)
continue;
button = i + 1;
break;
}
}
break;
case GDK_TOUCH_CANCEL:
case GDK_GRAB_BROKEN:
return GTK_EVENT_CONTROLLER_CLASS (gtk_gesture_single_parent_class)->handle_event (controller,
event);
break;
default:
return FALSE;
}
if (button == 0 ||
(priv->button != 0 && priv->button != button) ||
(priv->current_button != 0 && priv->current_button != button))
{
if (gtk_gesture_is_active (GTK_GESTURE (controller)))
gtk_event_controller_reset (controller);
return FALSE;
}
if (event->type == GDK_BUTTON_PRESS || event->type == GDK_TOUCH_BEGIN ||
event->type == GDK_MOTION_NOTIFY || event->type == GDK_TOUCH_UPDATE)
{
if (!gtk_gesture_is_active (GTK_GESTURE (controller)))
priv->current_sequence = sequence;
priv->current_button = button;
}
retval = GTK_EVENT_CONTROLLER_CLASS (gtk_gesture_single_parent_class)->handle_event (controller, event);
if (sequence == priv->current_sequence &&
(event->type == GDK_BUTTON_RELEASE || event->type == GDK_TOUCH_END))
priv->current_button = 0;
else if (priv->current_sequence == sequence &&
!gtk_gesture_handles_sequence (GTK_GESTURE (controller), sequence))
{
if (button == priv->current_button && event->type == GDK_BUTTON_PRESS)
priv->current_button = 0;
else if (sequence == priv->current_sequence && event->type == GDK_TOUCH_BEGIN)
priv->current_sequence = NULL;
}
return retval;
}
