#define TOUCH_BYPASS_CAPTURED_THRESHOLD 30
/* Kinetic scrolling */
-#define FRAME_INTERVAL (1000 / 60)
#define MAX_OVERSHOOT_DISTANCE 50
#define FRICTION_DECELERATION 0.003
#define OVERSHOOT_INVERSE_ACCELERATION 0.003
gboolean allow_overshooting,
gboolean snap_to_border);
+static void gtk_scrolled_window_cancel_deceleration (GtkScrolledWindow *scrolled_window);
+
static guint signals[LAST_SIGNAL] = {0};
G_DEFINE_TYPE (GtkScrolledWindow, gtk_scrolled_window, GTK_TYPE_BIN)
return (*prev_value != value);
}
-static gboolean
-scrolled_window_deceleration_cb (gpointer user_data)
+static void
+scrolled_window_deceleration_cb (GdkFrameClock *frame_clock,
+ KineticScrollData *data)
{
- KineticScrollData *data = user_data;
GtkScrolledWindow *scrolled_window = data->scrolled_window;
GtkScrolledWindowPrivate *priv = scrolled_window->priv;
GtkAdjustment *hadjustment, *vadjustment;
_gtk_scrolled_window_get_overshoot (scrolled_window,
&old_overshoot_x, &old_overshoot_y);
- current_time = g_get_monotonic_time ();
+ current_time = gdk_frame_clock_get_frame_time (frame_clock);
elapsed = (current_time - data->last_deceleration_time) / 1000;
data->last_deceleration_time = current_time;
if (overshoot_x != 0 || overshoot_y != 0 ||
data->x_velocity != 0 || data->y_velocity != 0)
- return TRUE;
+ gdk_frame_clock_request_phase (frame_clock, GDK_FRAME_CLOCK_PHASE_UPDATE);
else
- {
- priv->deceleration_id = 0;
- return FALSE;
- }
+ gtk_scrolled_window_cancel_deceleration (scrolled_window);
}
static void
if (priv->deceleration_id)
{
- g_source_remove (priv->deceleration_id);
+ GdkFrameClock *frame_clock;
+
+ frame_clock = gtk_widget_get_frame_clock (GTK_WIDGET (scrolled_window));
+ g_signal_handler_disconnect (frame_clock,
+ priv->deceleration_id);
priv->deceleration_id = 0;
}
}
gtk_scrolled_window_start_deceleration (GtkScrolledWindow *scrolled_window)
{
GtkScrolledWindowPrivate *priv = scrolled_window->priv;
+ GdkFrameClock *frame_clock;
KineticScrollData *data;
gdouble angle;
+ frame_clock = gtk_widget_get_frame_clock (GTK_WIDGET (scrolled_window));
+
data = g_new0 (KineticScrollData, 1);
data->scrolled_window = scrolled_window;
- data->last_deceleration_time = g_get_monotonic_time ();
+ data->last_deceleration_time = gdk_frame_clock_get_frame_time (frame_clock);
data->x_velocity = priv->x_velocity;
data->y_velocity = priv->y_velocity;
data->vel_sine = sin (angle);
scrolled_window->priv->deceleration_id =
- gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT,
- FRAME_INTERVAL,
- scrolled_window_deceleration_cb,
- data, (GDestroyNotify) g_free);
+ g_signal_connect_data (frame_clock, "update",
+ G_CALLBACK (scrolled_window_deceleration_cb),
+ data,
+ (GClosureNotify) g_free,
+ 0);
+ gdk_frame_clock_request_phase (frame_clock, GDK_FRAME_CLOCK_PHASE_UPDATE);
}
static gboolean