static gboolean
clutter_event_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
ClutterBackendX11 *backend = ((ClutterEventSource *) source)->backend;
ClutterEvent *event;
_clutter_threads_acquire_lock ();
/* Grab the event(s), translate and figure out double click.
* The push onto queue (stack) if valid.
*/
events_queue (backend);
/* Pop an event off the queue if any */
event = clutter_event_get ();
if (event != NULL)
{
/* forward the event into clutter for emission etc. */
_clutter_stage_queue_event (event->any.stage, event, FALSE);
}
_clutter_threads_release_lock ();
return TRUE;
}
static gboolean
clutter_clock_prepare (GSource *source,
gint *timeout)
{
ClutterClockSource *clock_source = (ClutterClockSource *) source;
ClutterMasterClockDefault *master_clock = clock_source->master_clock;
int delay;
_clutter_threads_acquire_lock ();
if (G_UNLIKELY (clutter_paint_debug_flags &
CLUTTER_DEBUG_CONTINUOUS_REDRAW))
{
ClutterStageManager *stage_manager = clutter_stage_manager_get_default ();
const GSList *stages, *l;
stages = clutter_stage_manager_peek_stages (stage_manager);
/* Queue a full redraw on all of the stages */
for (l = stages; l != NULL; l = l->next)
clutter_actor_queue_redraw (l->data);
}
delay = master_clock_next_frame_delay (master_clock);
_clutter_threads_release_lock ();
*timeout = delay;
return delay == 0;
}
static gboolean
clutter_clock_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
ClutterClockSource *clock_source = (ClutterClockSource *) source;
ClutterMasterClockDefault *master_clock = clock_source->master_clock;
gboolean stages_updated = FALSE;
GSList *stages;
CLUTTER_NOTE (SCHEDULER, "Master clock [tick]");
_clutter_threads_acquire_lock ();
/* Get the time to use for this frame */
master_clock->cur_tick = g_source_get_time (source);
#ifdef CLUTTER_ENABLE_DEBUG
master_clock->remaining_budget = master_clock->frame_budget;
#endif
/* We need to protect ourselves against stages being destroyed during
* event handling - master_clock_list_ready_stages() returns a
* list of referenced that we'll unref afterwards.
*/
stages = master_clock_list_ready_stages (master_clock);
master_clock->idle = FALSE;
/* Each frame is split into three separate phases: */
/* 1. process all the events; each stage goes through its events queue
* and processes each event according to its type, then emits the
* various signals that are associated with the event
*/
master_clock_process_events (master_clock, stages);
/* 2. advance the timelines */
master_clock_advance_timelines (master_clock);
/* 3. relayout and redraw the stages */
stages_updated = master_clock_update_stages (master_clock, stages);
/* The master clock goes idle if no stages were updated and falls back
* to polling for timeline progressions... */
if (!stages_updated)
master_clock->idle = TRUE;
master_clock_reschedule_stage_updates (master_clock, stages);
g_slist_foreach (stages, (GFunc) g_object_unref, NULL);
g_slist_free (stages);
master_clock->prev_tick = master_clock->cur_tick;
_clutter_threads_release_lock ();
return TRUE;
}
static gboolean
clutter_clock_check (GSource *source)
{
ClutterClockSource *clock_source = (ClutterClockSource *) source;
ClutterMasterClockDefault *master_clock = clock_source->master_clock;
int delay;
_clutter_threads_acquire_lock ();
delay = master_clock_next_frame_delay (master_clock);
_clutter_threads_release_lock ();
return delay == 0;
}
static gboolean
clutter_event_prepare (GSource *source,
gint *timeout)
{
ClutterBackendX11 *backend = ((ClutterEventSource *) source)->backend;
gboolean retval;
_clutter_threads_acquire_lock ();
*timeout = -1;
retval = (clutter_events_pending () || XPending (backend->xdpy));
_clutter_threads_release_lock ();
return retval;
}
static gboolean
clutter_event_check (GSource *source)
{
ClutterEventSource *event_source = (ClutterEventSource *) source;
ClutterBackendX11 *backend = event_source->backend;
gboolean retval;
_clutter_threads_acquire_lock ();
if (event_source->event_poll_fd.revents & G_IO_IN)
retval = (clutter_events_pending () || XPending (backend->xdpy));
else
retval = FALSE;
_clutter_threads_release_lock ();
return retval;
}
/**
* clutter_x11_handle_event:
* @xevent: pointer to XEvent structure
*
* This function processes a single X event; it can be used to hook
* into external X11 event processing (for example, a GDK filter
* function).
*
* If clutter_x11_disable_event_retrieval() has been called, you must
* let this function process events to update Clutter's internal state.
*
* Return value: #ClutterX11FilterReturn. %CLUTTER_X11_FILTER_REMOVE
* indicates that Clutter has internally handled the event and the
* caller should do no further processing. %CLUTTER_X11_FILTER_CONTINUE
* indicates that Clutter is either not interested in the event,
* or has used the event to update internal state without taking
* any exclusive action. %CLUTTER_X11_FILTER_TRANSLATE will not
* occur.
*
* Since: 0.8
*/
ClutterX11FilterReturn
clutter_x11_handle_event (XEvent *xevent)
{
ClutterX11FilterReturn result;
ClutterBackend *backend;
ClutterEvent *event;
gint spin = 1;
#ifdef HAVE_XGE
ClutterBackendX11 *backend_x11;
Display *xdisplay;
gboolean allocated_event;
#endif
/* The return values here are someone approximate; we return
* CLUTTER_X11_FILTER_REMOVE if a clutter event is
* generated for the event. This mostly, but not entirely,
* corresponds to whether other event processing should be
* excluded. As long as the stage window is not shared with another
* toolkit it should be safe, and never return
* %CLUTTER_X11_FILTER_REMOVE when more processing is needed.
*/
result = CLUTTER_X11_FILTER_CONTINUE;
_clutter_threads_acquire_lock ();
backend = clutter_get_default_backend ();
event = clutter_event_new (CLUTTER_NOTHING);
#ifdef HAVE_XGE
backend_x11 = CLUTTER_BACKEND_X11 (backend);
xdisplay = backend_x11->xdpy;
allocated_event = XGetEventData (xdisplay, &xevent->xcookie);
#endif
if (_clutter_backend_translate_event (backend, xevent, event))
{
_clutter_event_push (event, FALSE);
result = CLUTTER_X11_FILTER_REMOVE;
}
else
{
clutter_event_free (event);
goto out;
}
/*
* Motion events can generate synthetic enter and leave events, so if we
* are processing a motion event, we need to spin the event loop at least
* two extra times to pump the enter/leave events through (otherwise they
* just get pushed down the queue and never processed).
*/
if (event->type == CLUTTER_MOTION)
spin += 2;
while (spin > 0 && (event = clutter_event_get ()))
{
/* forward the event into clutter for emission etc. */
_clutter_stage_queue_event (event->any.stage, event, FALSE);
--spin;
}
out:
#ifdef HAVE_XGE
if (allocated_event)
XFreeEventData (xdisplay, &xevent->xcookie);
#endif
_clutter_threads_release_lock ();
return result;
}
/**
* clutter_gdk_handle_event:
* @event: a #GdkEvent
*
* This function processes a single GDK event; it can be used to hook
* into external event processing
*
* Return value: #GdkFilterReturn. %GDK_FILTER_REMOVE indicates that
* Clutter has internally handled the event and the caller should do
* no further processing. %GDK_FILTER_CONTINUE indicates that Clutter
* is either not interested in the event, or has used the event to
* update internal state without taking any exclusive action.
* %GDK_FILTER_TRANSLATE will not occur.
*
*/
GdkFilterReturn
clutter_gdk_handle_event (GdkEvent *gdk_event)
{
ClutterDeviceManager *device_manager;
ClutterBackendGdk *backend_gdk;
ClutterBackend *backend;
ClutterStage *stage = NULL;
ClutterEvent *event = NULL;
gint spin = 0;
GdkFilterReturn result = GDK_FILTER_CONTINUE;
ClutterInputDevice *device, *source_device;
GdkDevice *gdk_device;
backend = clutter_get_default_backend ();
if (!CLUTTER_IS_BACKEND_GDK (backend))
return GDK_FILTER_CONTINUE;
if (gdk_event->any.window == NULL)
return GDK_FILTER_CONTINUE;
device_manager = clutter_device_manager_get_default ();
if (G_UNLIKELY (device_manager == NULL))
return GDK_FILTER_CONTINUE;
backend_gdk = CLUTTER_BACKEND_GDK (backend);
stage = clutter_gdk_get_stage_from_window (gdk_event->any.window);
gdk_device = gdk_event_get_device (gdk_event);
if (gdk_device != NULL)
device = _clutter_device_manager_gdk_lookup_device (device_manager,
gdk_device);
else
device = NULL;
gdk_device = gdk_event_get_source_device (gdk_event);
if (gdk_device != NULL)
source_device = _clutter_device_manager_gdk_lookup_device (device_manager,
gdk_device);
else
source_device = NULL;
if (stage == NULL)
return GDK_FILTER_CONTINUE;
_clutter_threads_acquire_lock ();
switch (gdk_event->type)
{
case GDK_DELETE:
event = clutter_event_new (CLUTTER_DELETE);
break;
case GDK_DESTROY:
event = clutter_event_new (CLUTTER_DESTROY_NOTIFY);
break;
case GDK_EXPOSE:
{
ClutterPaintVolume clip;
ClutterVertex origin;
CLUTTER_NOTE (EVENT, "Expose for stage '%s' [%p] { %d, %d - %d x %d }",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
gdk_event->expose.area.x,
gdk_event->expose.area.y,
gdk_event->expose.area.width,
gdk_event->expose.area.height);
origin.x = gdk_event->expose.area.x;
origin.y = gdk_event->expose.area.y;
origin.z = 0;
_clutter_paint_volume_init_static (&clip, CLUTTER_ACTOR (stage));
clutter_paint_volume_set_origin (&clip, &origin);
clutter_paint_volume_set_width (&clip, gdk_event->expose.area.width);
clutter_paint_volume_set_height (&clip, gdk_event->expose.area.height);
_clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), 0, &clip);
clutter_paint_volume_free (&clip);
}
break;
case GDK_DAMAGE:
/* This is handled by cogl */
break;
case GDK_MOTION_NOTIFY:
event = clutter_event_new (CLUTTER_MOTION);
event->motion.time = gdk_event->motion.time;
event->motion.x = gdk_event->motion.x;
event->motion.y = gdk_event->motion.y;
event->motion.axes = NULL;
/* It's all X in the end, right? */
event->motion.modifier_state = gdk_event->motion.state;
clutter_event_set_device (event, device);
clutter_event_set_source_device (event, source_device);
CLUTTER_NOTE (EVENT, "Motion notifiy [%.2f, %.2f]",
event->motion.x,
event->motion.y);
break;
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
event = clutter_event_new (gdk_event->type == GDK_BUTTON_PRESS ?
CLUTTER_BUTTON_PRESS :
CLUTTER_BUTTON_RELEASE);
event->button.time = gdk_event->button.time;
event->button.x = gdk_event->button.x;
event->button.y = gdk_event->button.y;
event->button.axes = NULL;
event->button.modifier_state = gdk_event->button.state;
event->button.button = gdk_event->button.button;
event->button.click_count = 1;
clutter_event_set_device (event, device);
clutter_event_set_source_device (event, source_device);
CLUTTER_NOTE (EVENT, "Button %d %s [%.2f, %.2f]",
event->button.button,
event->type == CLUTTER_BUTTON_PRESS ? "press" : "release",
event->button.x,
event->button.y);
break;
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
/* these are handled by clutter-main.c updating click_count */
break;
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
event = clutter_event_new (gdk_event->type == GDK_KEY_PRESS ?
CLUTTER_KEY_PRESS :
CLUTTER_KEY_RELEASE);
event->key.time = gdk_event->key.time;
event->key.modifier_state = gdk_event->key.state;
event->key.keyval = gdk_event->key.keyval;
event->key.hardware_keycode = gdk_event->key.hardware_keycode;
event->key.unicode_value = g_utf8_get_char (gdk_event->key.string);
clutter_event_set_device (event, device);
clutter_event_set_source_device (event, source_device);
CLUTTER_NOTE (EVENT, "Key %d %s",
event->key.keyval,
event->type == CLUTTER_KEY_PRESS ? "press" : "release");
break;
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
event = clutter_event_new (gdk_event->type == GDK_ENTER_NOTIFY ?
CLUTTER_ENTER :
CLUTTER_LEAVE);
event->crossing.source = CLUTTER_ACTOR (stage);
event->crossing.time = gdk_event_get_time (gdk_event);
event->crossing.x = gdk_event->crossing.x;
event->crossing.y = gdk_event->crossing.y;
/* XXX: no better fallback here? */
clutter_event_set_device (event, device);
clutter_event_set_source_device (event, source_device);
if (gdk_event->type == GDK_ENTER_NOTIFY)
_clutter_input_device_set_stage (clutter_event_get_device (event), stage);
else
_clutter_input_device_set_stage (clutter_event_get_device (event), NULL);
CLUTTER_NOTE (EVENT, "Crossing %s [%.2f, %.2f]",
event->type == CLUTTER_ENTER ? "enter" : "leave",
event->crossing.x,
event->crossing.y);
break;
case GDK_FOCUS_CHANGE:
if (gdk_event->focus_change.in)
_clutter_stage_update_state (stage, 0, CLUTTER_STAGE_STATE_ACTIVATED);
else
_clutter_stage_update_state (stage, CLUTTER_STAGE_STATE_ACTIVATED, 0);
break;
case GDK_CONFIGURE:
{
gfloat w, h;
clutter_actor_get_size (CLUTTER_ACTOR (stage), &w, &h);
if (w != gdk_event->configure.width ||
h != gdk_event->configure.height)
{
clutter_actor_set_size (CLUTTER_ACTOR (stage),
gdk_event->configure.width,
gdk_event->configure.height);
}
}
break;
case GDK_SCROLL:
event = clutter_event_new (CLUTTER_SCROLL);
event->scroll.time = gdk_event->scroll.time;
event->scroll.x = gdk_event->scroll.x;
event->scroll.y = gdk_event->scroll.y;
event->scroll.modifier_state = gdk_event->scroll.state;
event->scroll.axes = NULL;
/* XXX: must keep ClutterScrollDirection compatible with GdkScrollDirection */
event->scroll.direction = (ClutterScrollDirection) gdk_event->scroll.direction;
clutter_event_set_device (event, device);
clutter_event_set_source_device (event, source_device);
clutter_event_set_scroll_delta (event,
gdk_event->scroll.delta_x,
gdk_event->scroll.delta_y);
break;
case GDK_WINDOW_STATE:
if (gdk_event->window_state.changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
{
gboolean is_fullscreen;
is_fullscreen = (gdk_event->window_state.new_window_state & GDK_WINDOW_STATE_FULLSCREEN) != 0;
if (is_fullscreen)
_clutter_stage_update_state (stage, 0, CLUTTER_STAGE_STATE_FULLSCREEN);
else
_clutter_stage_update_state (stage, CLUTTER_STAGE_STATE_FULLSCREEN, 0);
}
break;
case GDK_SETTING:
_clutter_backend_gdk_update_setting (backend_gdk, gdk_event->setting.name);
break;
default:
break;
}
if (event != NULL)
{
event->any.stage = stage;
if (gdk_event->any.send_event)
event->any.flags = CLUTTER_EVENT_FLAG_SYNTHETIC;
_clutter_event_push (event, FALSE);
spin = 1;
CLUTTER_NOTE (EVENT, "Translated one event from Gdk");
/* handle also synthetic enter/leave events */
if (event->type == CLUTTER_MOTION)
spin += 2;
while (spin > 0 && (event = clutter_event_get ()))
{
/* forward the event into clutter for emission etc. */
clutter_do_event (event);
clutter_event_free (event);
--spin;
}
result = GDK_FILTER_REMOVE;
}
_clutter_threads_release_lock ();
return result;
}