static gboolean
st_button_button_release (ClutterActor *actor,
ClutterButtonEvent *event)
{
StButton *button = ST_BUTTON (actor);
StButtonPrivate *priv = st_button_get_instance_private (button);
StButtonMask mask = ST_BUTTON_MASK_FROM_BUTTON (event->button);
ClutterInputDevice *device = clutter_event_get_device ((ClutterEvent*) event);
if (priv->button_mask & mask)
{
gboolean is_click;
is_click = priv->grabbed && clutter_actor_contains (actor, event->source);
st_button_release (button, device, mask, is_click ? event->button : 0, NULL);
priv->grabbed &= ~mask;
if (priv->grabbed == 0)
clutter_ungrab_pointer ();
return TRUE;
}
return FALSE;
}
/**
* st_button_fake_release:
* @button: an #StButton
*
* If this widget is holding a pointer grab, this function will
* will ungrab it, and reset the pressed state. The effect is
* similar to if the user had released the mouse button, but without
* emitting the clicked signal.
*
* This function is useful if for example you want to do something
* after the user is holding the mouse button for a given period of
* time, breaking the grab.
*/
void
st_button_fake_release (StButton *button)
{
StButtonPrivate *priv;
g_return_if_fail (ST_IS_BUTTON (button));
priv = st_button_get_instance_private (button);
if (priv->device && priv->press_sequence)
{
clutter_input_device_sequence_ungrab (priv->device,
priv->press_sequence);
}
if (priv->pressed || priv->press_sequence)
st_button_release (button, priv->device,
priv->pressed, 0, NULL);
if (priv->grabbed)
{
priv->grabbed = 0;
clutter_ungrab_pointer ();
}
priv->device = NULL;
}
static gboolean
mx_toggle_handle_button_release_event (ClutterActor *actor,
ClutterButtonEvent *event,
MxToggle *toggle)
{
ClutterActorBox box;
if (mx_widget_get_disabled (MX_WIDGET (toggle)))
return FALSE;
if (toggle->priv->last_move == 0)
mx_toggle_set_active (toggle, !toggle->priv->active);
else
mx_toggle_set_active (toggle, (toggle->priv->last_move > 0.0));
toggle->priv->drag_offset = -1;
toggle->priv->last_move = 0;
clutter_ungrab_pointer ();
/* ensure the hover state is removed if the pointer left the handle
* during the grab */
clutter_actor_get_allocation_box (actor, &box);
if (!clutter_actor_box_contains (&box, event->x, event->y))
mx_stylable_style_pseudo_class_remove (MX_STYLABLE (actor), "hover");
return TRUE;
}
static void
shell_menu_popdown_nosignal (ShellMenu *menu)
{
menu->priv->popped_up = FALSE;
if (menu->priv->have_grab)
clutter_ungrab_pointer ();
clutter_actor_hide (CLUTTER_ACTOR (menu));
}
void
shell_menu_popdown (ShellMenu *box)
{
if (box->priv->have_grab)
clutter_ungrab_pointer ();
clutter_actor_hide (CLUTTER_ACTOR (box));
g_signal_emit (G_OBJECT (box), shell_menu_signals[POPDOWN], 0);
}
static gboolean
red_release_cb (ClutterActor *actor,
ClutterEvent *event,
gpointer data)
{
clutter_ungrab_pointer ();
return FALSE;
}
static MxFocusable *
mnb_launcher_button_accept_focus (MxFocusable *focusable,
MxFocusHint hint)
{
clutter_ungrab_pointer ();
clutter_actor_grab_key_focus (CLUTTER_ACTOR (focusable));
mx_stylable_set_style_pseudo_class (MX_STYLABLE (focusable), "hover");
return focusable;
}
static void
stop_scrolling (StScrollBar *bar)
{
if (!bar->priv->grabbed)
return;
clutter_ungrab_pointer ();
bar->priv->grabbed = FALSE;
g_signal_emit (bar, signals[SCROLL_STOP], 0);
}
IO_METHOD(IoClutter, ungrabPointer) {
IoObject *device_n = IoMessage_locals_valueArgAt_(m, locals, 0);
if(ISNUMBER(device_n))
clutter_ungrab_pointer_for_device(CNUMBER(device_n));
else
clutter_ungrab_pointer();
return self;
}
/**
* shell_button_box_fake_release:
* @box:
*
* If this button box is holding a pointer grab, this function will
* will ungrab it, and reset the pressed state. The effect is
* similar to if the user had released the mouse button, but without
* emitting the activate signal.
*
* This function is useful if for example you want to do something after the user
* is holding the mouse button for a given period of time, breaking the
* grab.
*/
void
shell_button_box_fake_release (ShellButtonBox *box)
{
if (!box->priv->held)
return;
box->priv->held = FALSE;
clutter_ungrab_pointer ();
set_pressed (box, FALSE);
}
/**
* st_button_fake_release:
* @button: an #StButton
*
* If this widget is holding a pointer grab, this function will
* will ungrab it, and reset the pressed state. The effect is
* similar to if the user had released the mouse button, but without
* emitting the clicked signal.
*
* This function is useful if for example you want to do something
* after the user is holding the mouse button for a given period of
* time, breaking the grab.
*/
void
st_button_fake_release (StButton *button)
{
if (button->priv->pressed)
st_button_release (button, button->priv->pressed, 0);
if (button->priv->grabbed)
{
button->priv->grabbed = 0;
clutter_ungrab_pointer ();
}
}
static void
stop_scrolling (StScrollBar *bar)
{
if (!bar->priv->grabbed)
return;
st_widget_remove_style_pseudo_class (ST_WIDGET (bar->priv->handle), "active");
clutter_ungrab_pointer ();
bar->priv->grabbed = FALSE;
g_signal_emit (bar, signals[SCROLL_STOP], 0);
}
static gboolean
toggle_grab_pointer_cb (ClutterActor *actor,
ClutterEvent *event,
gpointer data)
{
/* we only deal with the event if the source is ourself */
if (event->button.source == actor)
{
if (clutter_get_pointer_grab () != NULL)
clutter_ungrab_pointer ();
else
clutter_grab_pointer (actor);
}
return FALSE;
}
static void
gmc_button_pull (GmcButton *self)
{
GmcButtonPrivate *priv;
priv = GMC_BUTTON_GET_PRIVATE (self);
if (priv->is_pressed == FALSE) {
return;
}
clutter_ungrab_pointer ();
priv->is_pressed = FALSE;
g_signal_emit (self, button_signals[CLICKED], 0, self);
}
/* Accept focus handles setting hover pseudo style class and leave events
* handle unsetting the hover pseudo style class
*/
static gboolean
_leave_event_cb (ClutterActor *actor,
ClutterCrossingEvent *event,
gpointer data)
{
MnbLauncherButton *self = MNB_LAUNCHER_BUTTON (actor);
mx_stylable_set_style_pseudo_class (MX_STYLABLE (self), NULL);
if (self->priv->is_pressed)
{
clutter_ungrab_pointer ();
clutter_ungrab_keyboard ();
self->priv->is_pressed = FALSE;
}
return FALSE;
}
static gboolean
glide_image_button_release (ClutterActor *actor,
ClutterButtonEvent *bev)
{
GlideImage *image = GLIDE_IMAGE (actor);
if (image->priv->dragging)
{
if (!image->priv->motion_since_press)
glide_undo_manager_cancel_actor_action (glide_actor_get_undo_manager (GLIDE_ACTOR (actor)));
else
glide_undo_manager_end_actor_action (glide_actor_get_undo_manager (GLIDE_ACTOR (actor)),
GLIDE_ACTOR (actor));
clutter_ungrab_pointer ();
image->priv->dragging = FALSE;
return TRUE;
}
return FALSE;
}
static gboolean
st_button_button_release (ClutterActor *actor,
ClutterButtonEvent *event)
{
StButton *button = ST_BUTTON (actor);
StButtonMask mask = ST_BUTTON_MASK_FROM_BUTTON (event->button);
if (button->priv->button_mask & mask)
{
gboolean is_click;
is_click = button->priv->grabbed && st_widget_get_hover (ST_WIDGET (button));
st_button_release (button, mask, is_click ? event->button : 0);
button->priv->grabbed &= ~mask;
if (button->priv->grabbed == 0)
clutter_ungrab_pointer ();
return TRUE;
}
return FALSE;
}
static gboolean
mnb_launcher_button_button_release_event (ClutterActor *actor,
ClutterButtonEvent *event)
{
if (event->button == 1)
{
MnbLauncherButton *self = MNB_LAUNCHER_BUTTON (actor);
if (!self->priv->is_pressed)
return FALSE;
clutter_ungrab_pointer ();
self->priv->is_pressed = FALSE;
g_signal_emit (self, _signals[ACTIVATED], 0);
mx_stylable_set_style_pseudo_class (MX_STYLABLE (self), NULL);
mx_widget_hide_tooltip (MX_WIDGET (self));
return TRUE;
}
return FALSE;
}
static gboolean
shell_button_box_button_release_event (ClutterActor *actor,
ClutterButtonEvent *event)
{
ShellButtonBox *box = SHELL_BUTTON_BOX (actor);
if (event->button != 1 || event->click_count != 1)
return FALSE;
if (!box->priv->held)
return TRUE;
box->priv->held = FALSE;
clutter_ungrab_pointer ();
if (!shell_button_box_contains (box, event->source))
return FALSE;
set_pressed (box, FALSE);
g_signal_emit (G_OBJECT (box), shell_button_box_signals[ACTIVATE], 0, event);
return TRUE;
}
int
main (int argc, char *argv[])
{
GLenum err = 0;
#ifdef WIN32
HGLRC clutter_gl_context = 0;
HDC clutter_dc = 0;
#else
Display *clutter_display = NULL;
Window clutter_win = 0;
GLXContext clutter_gl_context = NULL;
#endif
GstPipeline *pipeline = NULL;
GstBus *bus = NULL;
GstElement *glupload = NULL;
GstState state = 0;
ClutterActor *stage = NULL;
ClutterActor *clutter_texture = NULL;
GAsyncQueue *queue_input_buf = NULL;
GAsyncQueue *queue_output_buf = NULL;
GstElement *fakesink = NULL;
/* init gstreamer then clutter */
gst_init (&argc, &argv);
clutter_threads_init ();
clutter_init (&argc, &argv);
clutter_threads_enter ();
g_print ("clutter version: %s\n", CLUTTER_VERSION_S);
/* init glew */
err = glewInit ();
if (err != GLEW_OK)
g_debug ("failed to init GLEW: %s", glewGetErrorString (err));
/* avoid to dispatch unecesary events */
clutter_ungrab_keyboard ();
clutter_ungrab_pointer ();
/* retrieve and turn off clutter opengl context */
stage = clutter_stage_get_default ();
/* retrieve and turn off clutter opengl context */
#ifdef WIN32
clutter_gl_context = wglGetCurrentContext ();
clutter_dc = wglGetCurrentDC ();
wglMakeCurrent (0, 0);
#else
clutter_display = clutter_x11_get_default_display ();
clutter_win = clutter_x11_get_stage_window (CLUTTER_STAGE (stage));
clutter_gl_context = glXGetCurrentContext ();
glXMakeCurrent (clutter_display, None, 0);
#endif
/* setup gstreamer pipeline */
pipeline =
GST_PIPELINE (gst_parse_launch
("videotestsrc ! video/x-raw-yuv, width=320, height=240, framerate=(fraction)30/1 ! "
"glupload ! gleffects effect=5 ! glfiltercube ! fakesink sync=1",
NULL));
/* setup bus */
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (bus, "message::error", G_CALLBACK (end_stream_cb), NULL);
g_signal_connect (bus, "message::warning", G_CALLBACK (end_stream_cb), NULL);
g_signal_connect (bus, "message::eos", G_CALLBACK (end_stream_cb), NULL);
gst_object_unref (bus);
/* clutter_gl_context is an external OpenGL context with which gst-plugins-gl want to share textures */
glupload = gst_bin_get_by_name (GST_BIN (pipeline), "glupload0");
g_object_set (G_OBJECT (glupload), "external-opengl-context",
clutter_gl_context, NULL);
g_object_unref (glupload);
/* NULL to PAUSED state pipeline to make sure the gst opengl context is created and
* shared with the clutter one */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PAUSED);
state = GST_STATE_PAUSED;
if (gst_element_get_state (GST_ELEMENT (pipeline), &state, NULL,
GST_CLOCK_TIME_NONE) != GST_STATE_CHANGE_SUCCESS) {
g_debug ("failed to pause pipeline\n");
return -1;
}
/* turn on back clutter opengl context */
#ifdef WIN32
wglMakeCurrent (clutter_dc, clutter_gl_context);
#else
glXMakeCurrent (clutter_display, clutter_win, clutter_gl_context);
#endif
/* clutter stage */
clutter_actor_set_size (stage, 640, 480);
clutter_actor_set_position (stage, 0, 0);
clutter_stage_set_title (CLUTTER_STAGE (stage), "clutter and gst-plugins-gl");
clutter_texture = setup_stage (CLUTTER_STAGE (stage));
/* append a gst-gl texture to this queue when you do not need it no more */
queue_input_buf = g_async_queue_new ();
queue_output_buf = g_async_queue_new ();
g_object_set_data (G_OBJECT (clutter_texture), "queue_input_buf",
queue_input_buf);
g_object_set_data (G_OBJECT (clutter_texture), "queue_output_buf",
queue_output_buf);
/* set a callback to retrieve the gst gl textures */
fakesink = gst_bin_get_by_name (GST_BIN (pipeline), "fakesink0");
g_object_set (G_OBJECT (fakesink), "signal-handoffs", TRUE, NULL);
g_signal_connect (fakesink, "handoff", G_CALLBACK (on_gst_buffer),
clutter_texture);
g_object_unref (fakesink);
/* play gst */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
/* main loop */
clutter_main ();
/* before to deinitialize the gst-gl-opengl context,
* no shared context (here the clutter one) must be current
*/
#ifdef WIN32
wglMakeCurrent (0, 0);
#else
glXMakeCurrent (clutter_display, None, 0);
#endif
clutter_threads_leave ();
/* stop and clean up the pipeline */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
g_object_unref (pipeline);
/* make sure there is no pending gst gl buffer in the communication queues
* between clutter and gst-gl
*/
while (g_async_queue_length (queue_input_buf) > 0) {
GstBuffer *buf = g_async_queue_pop (queue_input_buf);
gst_buffer_unref (buf);
}
while (g_async_queue_length (queue_output_buf) > 0) {
GstBuffer *buf = g_async_queue_pop (queue_output_buf);
gst_buffer_unref (buf);
}
return 0;
}
