static void
gtk_gesture_multi_press_cancel (GtkGesture *gesture,
GdkEventSequence *sequence)
{
_gtk_gesture_multi_press_stop (GTK_GESTURE_MULTI_PRESS (gesture));
GTK_GESTURE_CLASS (gtk_gesture_multi_press_parent_class)->cancel (gesture, sequence);
}
static void
gtk_gesture_multi_press_begin (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureMultiPress *multi_press;
GtkGestureMultiPressPrivate *priv;
guint n_presses, button = 1;
GdkEventSequence *current;
const GdkEvent *event;
GdkDevice *device;
gdouble x, y;
if (!gtk_gesture_handles_sequence (gesture, sequence))
return;
multi_press = GTK_GESTURE_MULTI_PRESS (gesture);
priv = gtk_gesture_multi_press_get_instance_private (multi_press);
event = gtk_gesture_get_last_event (gesture, sequence);
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
device = gdk_event_get_source_device (event);
if (event->type == GDK_BUTTON_PRESS)
button = event->button.button;
else if (event->type == GDK_TOUCH_BEGIN)
button = 1;
else
return;
/* Reset the gesture if the button number changes mid-recognition */
if (priv->n_presses > 0 &&
priv->current_button != button)
_gtk_gesture_multi_press_stop (multi_press);
/* Reset also if the device changed */
if (priv->current_device && priv->current_device != device)
_gtk_gesture_multi_press_stop (multi_press);
priv->current_device = device;
priv->current_button = button;
_gtk_gesture_multi_press_update_timeout (multi_press);
gtk_gesture_get_point (gesture, current, &x, &y);
if (!_gtk_gesture_multi_press_check_within_threshold (multi_press, x, y))
_gtk_gesture_multi_press_stop (multi_press);
/* Increment later the real counter, just if the gesture is
* reset on the pressed handler */
n_presses = priv->n_release = priv->n_presses + 1;
g_signal_emit (gesture, signals[PRESSED], 0, n_presses, x, y);
if (priv->n_presses == 0)
{
priv->initial_press_x = x;
priv->initial_press_y = y;
}
priv->n_presses++;
}
static void
gtk_gesture_multi_press_update (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureMultiPress *multi_press;
GdkEventSequence *current;
gdouble x, y;
multi_press = GTK_GESTURE_MULTI_PRESS (gesture);
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
gtk_gesture_get_point (gesture, current, &x, &y);
if (!_gtk_gesture_multi_press_check_within_threshold (multi_press, x, y))
_gtk_gesture_multi_press_stop (multi_press);
}
static gboolean
gtk_gesture_multi_press_check (GtkGesture *gesture)
{
GtkGestureMultiPress *multi_press;
GtkGestureMultiPressPrivate *priv;
GList *sequences;
gboolean active;
multi_press = GTK_GESTURE_MULTI_PRESS (gesture);
priv = gtk_gesture_multi_press_get_instance_private (multi_press);
sequences = gtk_gesture_get_sequences (gesture);
active = g_list_length (sequences) == 1 || priv->double_click_timeout_id;
g_list_free (sequences);
return active;
}
static void
gtk_gesture_multi_press_finalize (GObject *object)
{
GtkGestureMultiPressPrivate *priv;
GtkGestureMultiPress *gesture;
gesture = GTK_GESTURE_MULTI_PRESS (object);
priv = gtk_gesture_multi_press_get_instance_private (gesture);
if (priv->double_click_timeout_id)
{
g_source_remove (priv->double_click_timeout_id);
priv->double_click_timeout_id = 0;
}
G_OBJECT_CLASS (gtk_gesture_multi_press_parent_class)->finalize (object);
}
static void
gtk_gesture_multi_press_end (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureMultiPress *multi_press;
GtkGestureMultiPressPrivate *priv;
GdkEventSequence *current;
gdouble x, y;
multi_press = GTK_GESTURE_MULTI_PRESS (gesture);
priv = gtk_gesture_multi_press_get_instance_private (multi_press);
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
gtk_gesture_get_point (gesture, current, &x, &y);
g_signal_emit (gesture, signals[RELEASED], 0, priv->n_release, x, y);
priv->n_release = 0;
}
static void
gtk_gesture_multi_press_end (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureMultiPress *multi_press;
GtkGestureMultiPressPrivate *priv;
GdkEventSequence *current;
gdouble x, y;
gboolean interpreted;
GtkEventSequenceState state;
multi_press = GTK_GESTURE_MULTI_PRESS (gesture);
priv = gtk_gesture_multi_press_get_instance_private (multi_press);
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
interpreted = gtk_gesture_get_point (gesture, current, &x, &y);
state = gtk_gesture_get_sequence_state (gesture, current);
if (state != GTK_EVENT_SEQUENCE_DENIED && interpreted)
g_signal_emit (gesture, signals[RELEASED], 0, priv->n_release, x, y);
priv->n_release = 0;
}
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 void
gtk_gesture_multi_press_cancel (GtkGesture *gesture,
GdkEventSequence *sequence)
{
_gtk_gesture_multi_press_stop (GTK_GESTURE_MULTI_PRESS (gesture));
}