static void
gtk_gesture_long_press_update (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureLongPressPrivate *priv;
GtkWidget *widget;
gdouble x, y;
widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
priv = gtk_gesture_long_press_get_instance_private (GTK_GESTURE_LONG_PRESS (gesture));
gtk_gesture_get_point (gesture, sequence, &x, &y);
if (gtk_drag_check_threshold (widget, priv->initial_x, priv->initial_y, x, y))
{
if (priv->timeout_id)
{
g_source_remove (priv->timeout_id);
priv->timeout_id = 0;
g_signal_emit (gesture, signals[CANCELLED], 0);
}
priv->cancelled = TRUE;
_gtk_gesture_check (gesture);
}
}
static void
gtk_gesture_long_press_begin (GtkGesture *gesture,
GdkEventSequence *sequence)
{
GtkGestureLongPressPrivate *priv;
const GdkEvent *event;
GtkWidget *widget;
gint delay;
priv = gtk_gesture_long_press_get_instance_private (GTK_GESTURE_LONG_PRESS (gesture));
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (gesture, sequence);
if (!event ||
(event->type != GDK_BUTTON_PRESS &&
event->type != GDK_TOUCH_BEGIN))
return;
widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
g_object_get (gtk_widget_get_settings (widget),
"gtk-long-press-time", &delay,
NULL);
delay = (gint)(priv->delay_factor * delay);
gtk_gesture_get_point (gesture, sequence,
&priv->initial_x, &priv->initial_y);
priv->timeout_id =
gdk_threads_add_timeout (delay,
_gtk_gesture_long_press_timeout,
gesture);
}
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 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 gboolean
_gtk_gesture_long_press_timeout (gpointer user_data)
{
GtkGestureLongPress *gesture = user_data;
GtkGestureLongPressPrivate *priv;
GdkEventSequence *sequence;
gdouble x, y;
priv = gtk_gesture_long_press_get_instance_private (gesture);
sequence = gtk_gesture_get_last_updated_sequence (GTK_GESTURE (gesture));
gtk_gesture_get_point (GTK_GESTURE (gesture), sequence, &x, &y);
priv->timeout_id = 0;
priv->triggered = TRUE;
g_signal_emit (gesture, signals[PRESSED], 0, x, y);
return G_SOURCE_REMOVE;
}
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
multipress_gesture_update_cb (GtkGesture *gesture,
GdkEventSequence *sequence,
GtkButton *button)
{
GtkButtonPrivate *priv = button->priv;
GtkAllocation allocation;
gboolean in_button;
gdouble x, y;
if (sequence != gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)))
return;
gtk_widget_get_allocation (GTK_WIDGET (button), &allocation);
gtk_gesture_get_point (gesture, sequence, &x, &y);
in_button = (x >= 0 && y >= 0 && x < allocation.width && y < allocation.height);
if (priv->in_button != in_button)
{
priv->in_button = in_button;
gtk_button_update_state (button);
}
}
