static gboolean
on_trough_bg_button_press_event (ClutterActor *actor,
ClutterButtonEvent *event,
MxSlider *self)
{
MxSliderPrivate *priv = self->priv;
ClutterActor *stage;
if (event->button != 1)
return FALSE;
if (mx_widget_get_disabled (MX_WIDGET (actor)))
return FALSE;
move_handle (self, event->x, event->y);
stage = clutter_actor_get_stage (priv->handle);
/* Turn off picking for motion events */
clutter_stage_set_motion_events_enabled (CLUTTER_STAGE (stage), FALSE);
priv->capture_handler =
g_signal_connect_after (stage,
"captured-event",
G_CALLBACK (on_handle_capture_event),
self);
return TRUE;
}
static gboolean
on_handle_capture_event (ClutterActor *trough,
ClutterEvent *event,
MxSlider *bar)
{
MxSliderPrivate *priv = bar->priv;
if (clutter_event_type (event) == CLUTTER_MOTION)
{
drag_handle (bar,
((ClutterMotionEvent*)event)->x,
((ClutterMotionEvent*)event)->y);
}
else if (clutter_event_type (event) == CLUTTER_BUTTON_RELEASE
&& ((ClutterButtonEvent*)event)->button == 1)
{
ClutterActor *stage, *target;
stage = clutter_actor_get_stage(priv->trough);
if (priv->capture_handler)
{
g_signal_handler_disconnect (stage, priv->capture_handler);
priv->capture_handler = 0;
/* update the handle position */
mx_slider_allocate_fill_handle (bar, NULL, 0);
clutter_actor_queue_redraw (CLUTTER_ACTOR (bar));
}
clutter_stage_set_motion_events_enabled (CLUTTER_STAGE (stage), TRUE);
/* check if the mouse pointer has left the handle during the drag and
* remove the hover state if it has */
target =
clutter_stage_get_actor_at_pos ((ClutterStage*) stage,
CLUTTER_PICK_REACTIVE,
((ClutterButtonEvent*) event)->x,
((ClutterButtonEvent*) event)->y);
if (target != priv->handle)
{
mx_stylable_set_style_pseudo_class (MX_STYLABLE (priv->handle),
NULL);
}
/* emit the stop signal */
g_signal_emit (bar, signals[SLIDE_STOP], 0);
}
return FALSE;
}
static void
stop_scrolling (StScrollBar *bar)
{
ClutterStage *stage;
if (!bar->priv->capture_handler)
return;
stage = CLUTTER_STAGE (clutter_actor_get_stage (bar->priv->trough));
g_signal_handler_disconnect (stage, bar->priv->capture_handler);
bar->priv->capture_handler = 0;
clutter_stage_set_motion_events_enabled (stage, TRUE);
g_signal_emit (bar, signals[SCROLL_STOP], 0);
}
static gboolean
red_button_cb (ClutterActor *actor,
ClutterEvent *event,
gpointer data)
{
ClutterActor *stage;
if (IsMotion)
IsMotion = FALSE;
else
IsMotion = TRUE;
stage = clutter_actor_get_stage (actor);
clutter_stage_set_motion_events_enabled (CLUTTER_STAGE (stage),
IsMotion);
g_print ("*** Per actor motion events %s ***\n",
IsMotion ? "enabled" : "disabled");
return FALSE;
}
static gboolean
on_handle_button_press_event (ClutterActor *actor,
ClutterButtonEvent *event,
MxSlider *bar)
{
MxSliderPrivate *priv = bar->priv;
ClutterActor *stage;
if (mx_widget_get_disabled (MX_WIDGET (actor)))
return FALSE;
if (event->button != 1)
return FALSE;
if (!clutter_actor_transform_stage_point (priv->handle,
event->x,
event->y,
&priv->x_origin,
NULL))
return FALSE;
g_signal_emit (bar, signals[SLIDE_START], 0);
/* Account for the scrollbar-trough-handle nesting. */
priv->x_origin += clutter_actor_get_x (priv->trough);
/* Turn off picking for motion events */
stage = clutter_actor_get_stage (priv->trough);
clutter_stage_set_motion_events_enabled (CLUTTER_STAGE (stage), FALSE);
priv->capture_handler =
g_signal_connect_after (stage,
"captured-event",
G_CALLBACK (on_handle_capture_event),
bar);
return FALSE;
}
static gboolean
handle_button_press_event_cb (ClutterActor *actor,
ClutterButtonEvent *event,
StScrollBar *bar)
{
ClutterStage *stage;
StScrollBarPrivate *priv = bar->priv;
if (event->button != 1)
return FALSE;
if (!clutter_actor_transform_stage_point (priv->handle,
event->x,
event->y,
&priv->x_origin,
&priv->y_origin))
return FALSE;
/* Account for the scrollbar-trough-handle nesting. */
priv->x_origin += clutter_actor_get_x (priv->trough);
priv->y_origin += clutter_actor_get_y (priv->trough);
stage = CLUTTER_STAGE (clutter_actor_get_stage (bar->priv->trough));
/* Turn off picking for motion events */
clutter_stage_set_motion_events_enabled (stage, FALSE);
priv->capture_handler = g_signal_connect_after (
clutter_actor_get_stage (priv->trough),
"captured-event",
G_CALLBACK (handle_capture_event_cb),
bar);
g_signal_emit (bar, signals[SCROLL_START], 0);
return TRUE;
}
