static void
change_property (ClutterInputDevice *device,
const gchar *property,
Atom type,
int format,
void *data,
gulong nitems)
{
MetaBackend *backend = meta_get_backend ();
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
int device_id;
Atom property_atom;
guchar *data_ret;
property_atom = XInternAtom (xdisplay, property, False);
device_id = clutter_input_device_get_device_id (device);
data_ret = get_property (device, property, type, format, nitems);
if (!data_ret)
return;
XIChangeProperty (xdisplay, device_id, property_atom, type,
format, XIPropModeReplace, data, nitems);
meta_XFree (data_ret);
}
static gboolean
meta_backend_x11_nested_handle_host_xevent (MetaBackendX11 *x11,
XEvent *event)
{
#ifdef HAVE_WAYLAND
if (event->type == FocusIn)
{
Window xwin = meta_backend_x11_get_xwindow (x11);
XEvent xev;
if (event->xfocus.window == xwin)
{
MetaWaylandCompositor *compositor =
meta_wayland_compositor_get_default ();
Display *xdisplay = meta_backend_x11_get_xdisplay (x11);
/*
* Since we've selected for KeymapStateMask, every FocusIn is
* followed immediately by a KeymapNotify event.
*/
XMaskEvent (xdisplay, KeymapStateMask, &xev);
meta_wayland_compositor_update_key_state (compositor,
xev.xkeymap.key_vector,
32, 8);
}
}
#endif
return FALSE;
}
static void *
get_property (ClutterInputDevice *device,
const gchar *property,
Atom type,
int format,
gulong nitems)
{
MetaBackend *backend = meta_get_backend ();
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
gulong nitems_ret, bytes_after_ret;
int rc, device_id, format_ret;
Atom property_atom, type_ret;
guchar *data_ret = NULL;
property_atom = XInternAtom (xdisplay, property, False);
device_id = clutter_input_device_get_device_id (device);
rc = XIGetProperty (xdisplay, device_id, property_atom,
0, 10, False, type, &type_ret, &format_ret,
&nitems_ret, &bytes_after_ret, &data_ret);
if (rc == Success && type_ret == type && format_ret == format && nitems_ret >= nitems)
{
if (nitems_ret > nitems)
g_warning ("Property '%s' for device '%s' returned %lu items, expected %lu",
property, clutter_input_device_get_device_name (device), nitems_ret, nitems);
return data_ret;
}
meta_XFree (data_ret);
return NULL;
}
static void
meta_input_settings_x11_set_speed (MetaInputSettings *settings,
ClutterInputDevice *device,
gdouble speed)
{
MetaBackend *backend = meta_get_backend ();
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
gfloat value = speed;
change_property (device, "libinput Accel Speed",
XInternAtom (xdisplay, "FLOAT", False),
32, &value, 1);
}
static gboolean
meta_cursor_renderer_x11_update_cursor (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite)
{
MetaCursorRendererX11 *x11 = META_CURSOR_RENDERER_X11 (renderer);
MetaCursorRendererX11Private *priv = meta_cursor_renderer_x11_get_instance_private (x11);
MetaBackendX11 *backend = META_BACKEND_X11 (meta_get_backend ());
Window xwindow = meta_backend_x11_get_xwindow (backend);
Display *xdisplay = meta_backend_x11_get_xdisplay (backend);
if (xwindow == None)
{
if (cursor_sprite)
meta_cursor_sprite_realize_texture (cursor_sprite);
return FALSE;
}
gboolean has_server_cursor = FALSE;
if (cursor_sprite)
{
MetaCursor cursor = meta_cursor_sprite_get_meta_cursor (cursor_sprite);
if (cursor != META_CURSOR_NONE)
{
Cursor xcursor = meta_cursor_create_x_cursor (xdisplay, cursor);
XDefineCursor (xdisplay, xwindow, xcursor);
XFlush (xdisplay);
XFreeCursor (xdisplay, xcursor);
has_server_cursor = TRUE;
}
}
if (has_server_cursor != priv->server_cursor_visible)
{
if (has_server_cursor)
XFixesShowCursor (xdisplay, xwindow);
else
XFixesHideCursor (xdisplay, xwindow);
priv->server_cursor_visible = has_server_cursor;
}
if (!priv->server_cursor_visible && cursor_sprite)
meta_cursor_sprite_realize_texture (cursor_sprite);
return priv->server_cursor_visible;
}
static void
meta_input_settings_x11_set_matrix (MetaInputSettings *settings,
ClutterInputDevice *device,
gfloat matrix[6])
{
MetaBackend *backend = meta_get_backend ();
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
gfloat full_matrix[9] = { matrix[0], matrix[1], matrix[2],
matrix[3], matrix[4], matrix[5],
0, 0, 1 };
change_property (device, "Coordinate Transformation Matrix",
XInternAtom (xdisplay, "FLOAT", False),
32, &full_matrix, 9);
}
static void
meta_backend_x11_nested_select_stage_events (MetaBackend *backend)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
Display *xdisplay = meta_backend_x11_get_xdisplay (x11);
Window xwin = meta_backend_x11_get_xwindow (x11);
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
XISetMask (mask.mask, XI_KeyPress);
XISetMask (mask.mask, XI_KeyRelease);
XISetMask (mask.mask, XI_ButtonPress);
XISetMask (mask.mask, XI_ButtonRelease);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISetMask (mask.mask, XI_FocusIn);
XISetMask (mask.mask, XI_FocusOut);
XISetMask (mask.mask, XI_Motion);
/*
* When we're an X11 compositor, we can't take these events or else replaying
* events from our passive root window grab will cause them to come back to
* us.
*
* When we're a nested application, we want to behave like any other
* application, so select these events like normal apps do.
*/
XISetMask (mask.mask, XI_TouchBegin); XISetMask (mask.mask, XI_TouchEnd);
XISetMask (mask.mask, XI_TouchUpdate);
XISelectEvents (xdisplay, xwin, &mask, 1);
/*
* We have no way of tracking key changes when the stage doesn't have focus,
* so we select for KeymapStateMask so that we get a complete dump of the
* keyboard state in a KeymapNotify event that immediately follows each
* FocusIn (and EnterNotify, but we ignore that.)
*/
XWindowAttributes xwa;
XGetWindowAttributes(xdisplay, xwin, &xwa);
XSelectInput(xdisplay, xwin,
xwa.your_event_mask | FocusChangeMask | KeymapStateMask);
}
static void
meta_input_settings_x11_set_keyboard_repeat (MetaInputSettings *settings,
gboolean enabled,
guint delay,
guint interval)
{
MetaBackend *backend = meta_get_backend ();
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
if (enabled)
{
XAutoRepeatOn (xdisplay);
XkbSetAutoRepeatRate (xdisplay, XkbUseCoreKbd, delay, interval);
}
else
{
XAutoRepeatOff (xdisplay);
}
}
static gboolean
meta_display_handle_event (MetaDisplay *display,
const ClutterEvent *event)
{
MetaWindow *window;
gboolean bypass_clutter = FALSE;
G_GNUC_UNUSED gboolean bypass_wayland = FALSE;
MetaGestureTracker *tracker;
ClutterEventSequence *sequence;
ClutterInputDevice *source;
sequence = clutter_event_get_event_sequence (event);
/* Set the pointer emulating sequence on touch begin, if eligible */
if (event->type == CLUTTER_TOUCH_BEGIN)
{
if (sequence_is_pointer_emulated (display, event))
{
/* This is the new pointer emulating sequence */
display->pointer_emulating_sequence = sequence;
}
else if (display->pointer_emulating_sequence == sequence)
{
/* This sequence was "pointer emulating" in a prior incarnation,
* but now it isn't. We unset the pointer emulating sequence at
* this point so the current sequence is not mistaken as pointer
* emulating, while we've ensured that it's been deemed
* "pointer emulating" throughout all of the event processing
* of the previous incarnation.
*/
display->pointer_emulating_sequence = NULL;
}
}
#ifdef HAVE_WAYLAND
MetaWaylandCompositor *compositor = NULL;
if (meta_is_wayland_compositor ())
{
compositor = meta_wayland_compositor_get_default ();
meta_wayland_compositor_update (compositor, event);
}
#endif
if (!display->current_pad_osd &&
(event->type == CLUTTER_PAD_BUTTON_PRESS ||
event->type == CLUTTER_PAD_BUTTON_RELEASE))
{
MetaBackend *backend = meta_get_backend ();
if (meta_input_settings_handle_pad_button (meta_backend_get_input_settings (backend),
clutter_event_get_source_device (event),
event->type == CLUTTER_PAD_BUTTON_PRESS,
event->pad_button.button))
{
bypass_wayland = bypass_clutter = TRUE;
goto out;
}
}
source = clutter_event_get_source_device (event);
if (source)
{
meta_backend_update_last_device (meta_get_backend (),
clutter_input_device_get_device_id (source));
}
#ifdef HAVE_WAYLAND
if (meta_is_wayland_compositor () && event->type == CLUTTER_MOTION)
{
MetaWaylandCompositor *compositor;
compositor = meta_wayland_compositor_get_default ();
if (meta_wayland_tablet_manager_consumes_event (compositor->tablet_manager, event))
{
meta_wayland_tablet_manager_update_cursor_position (compositor->tablet_manager, event);
}
else
{
MetaCursorTracker *tracker = meta_cursor_tracker_get_for_screen (NULL);
meta_cursor_tracker_update_position (tracker, event->motion.x, event->motion.y);
}
display->monitor_cache_invalidated = TRUE;
}
#endif
handle_idletime_for_event (event);
window = get_window_for_event (display, event);
display->current_time = event->any.time;
if (window && !window->override_redirect &&
(event->type == CLUTTER_KEY_PRESS ||
event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_TOUCH_BEGIN))
{
if (CurrentTime == display->current_time)
{
/* We can't use missing (i.e. invalid) timestamps to set user time,
* nor do we want to use them to sanity check other timestamps.
* See bug 313490 for more details.
*/
meta_warning ("Event has no timestamp! You may be using a broken "
"program such as xse. Please ask the authors of that "
"program to fix it.\n");
}
else
{
meta_window_set_user_time (window, display->current_time);
meta_display_sanity_check_timestamps (display, display->current_time);
}
}
tracker = meta_display_get_gesture_tracker (display);
if (meta_gesture_tracker_handle_event (tracker, event))
{
bypass_wayland = bypass_clutter = TRUE;
goto out;
}
if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
{
if (meta_window_handle_mouse_grab_op_event (window, event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
goto out;
}
}
/* For key events, it's important to enforce single-handling, or
* we can get into a confused state. So if a keybinding is
* handled (because it's one of our hot-keys, or because we are
* in a keyboard-grabbed mode like moving a window, we don't
* want to pass the key event to the compositor or Wayland at all.
*/
if (meta_keybindings_process_event (display, window, event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
goto out;
}
/* Do not pass keyboard events to Wayland if key focus is not on the
* stage in normal mode (e.g. during keynav in the panel)
*/
if (display->event_route == META_EVENT_ROUTE_NORMAL)
{
if (IS_KEY_EVENT (event) && !stage_has_key_focus ())
{
bypass_wayland = TRUE;
goto out;
}
}
if (display->current_pad_osd)
{
bypass_wayland = TRUE;
goto out;
}
if (window)
{
/* Events that are likely to trigger compositor gestures should
* be known to clutter so they can propagate along the hierarchy.
* Gesture-wise, there's two groups of events we should be getting
* here:
* - CLUTTER_TOUCH_* with a touch sequence that's not yet accepted
* by the gesture tracker, these might trigger gesture actions
* into recognition. Already accepted touch sequences are handled
* directly by meta_gesture_tracker_handle_event().
* - CLUTTER_TOUCHPAD_* events over windows. These can likewise
* trigger ::captured-event handlers along the way.
*/
bypass_clutter = !IS_GESTURE_EVENT (event);
meta_window_handle_ungrabbed_event (window, event);
/* This might start a grab op. If it does, then filter out the
* event, and if it doesn't, replay the event to release our
* own sync grab. */
if (display->event_route == META_EVENT_ROUTE_WINDOW_OP ||
display->event_route == META_EVENT_ROUTE_FRAME_BUTTON)
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
else
{
/* Only replay button press events, since that's where we
* have the synchronous grab. */
if (event->type == CLUTTER_BUTTON_PRESS)
{
MetaBackend *backend = meta_get_backend ();
if (META_IS_BACKEND_X11 (backend))
{
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
meta_verbose ("Allowing events time %u\n",
(unsigned int)event->button.time);
XIAllowEvents (xdisplay, clutter_event_get_device_id (event),
XIReplayDevice, event->button.time);
}
}
}
goto out;
}
out:
/* If the compositor has a grab, don't pass that through to Wayland */
if (display->event_route == META_EVENT_ROUTE_COMPOSITOR_GRAB)
bypass_wayland = TRUE;
/* If a Wayland client has a grab, don't pass that through to Clutter */
if (display->event_route == META_EVENT_ROUTE_WAYLAND_POPUP)
bypass_clutter = TRUE;
#ifdef HAVE_WAYLAND
if (compositor && !bypass_wayland)
{
if (meta_wayland_compositor_handle_event (compositor, event))
bypass_clutter = TRUE;
}
#endif
display->current_time = CurrentTime;
return bypass_clutter;
}
void
meta_window_ensure_frame (MetaWindow *window)
{
MetaFrame *frame;
XSetWindowAttributes attrs;
gulong create_serial;
if (window->frame)
return;
frame = g_new (MetaFrame, 1);
frame->window = window;
frame->xwindow = None;
frame->rect = window->rect;
frame->child_x = 0;
frame->child_y = 0;
frame->bottom_height = 0;
frame->right_width = 0;
frame->current_cursor = 0;
frame->is_flashing = FALSE;
frame->borders_cached = FALSE;
meta_verbose ("Frame geometry %d,%d %dx%d\n",
frame->rect.x, frame->rect.y,
frame->rect.width, frame->rect.height);
frame->ui_frame = meta_ui_create_frame (window->screen->ui,
window->display->xdisplay,
frame->window,
window->xvisual,
frame->rect.x,
frame->rect.y,
frame->rect.width,
frame->rect.height,
&create_serial);
frame->xwindow = frame->ui_frame->xwindow;
meta_stack_tracker_record_add (window->screen->stack_tracker,
frame->xwindow,
create_serial);
meta_verbose ("Frame for %s is 0x%lx\n", frame->window->desc, frame->xwindow);
attrs.event_mask = EVENT_MASK;
XChangeWindowAttributes (window->display->xdisplay,
frame->xwindow, CWEventMask, &attrs);
meta_display_register_x_window (window->display, &frame->xwindow, window);
meta_error_trap_push (window->display);
if (window->mapped)
{
window->mapped = FALSE; /* the reparent will unmap the window,
* we don't want to take that as a withdraw
*/
meta_topic (META_DEBUG_WINDOW_STATE,
"Incrementing unmaps_pending on %s for reparent\n", window->desc);
window->unmaps_pending += 1;
}
meta_stack_tracker_record_remove (window->screen->stack_tracker,
window->xwindow,
XNextRequest (window->display->xdisplay));
XReparentWindow (window->display->xdisplay,
window->xwindow,
frame->xwindow,
frame->child_x,
frame->child_y);
/* FIXME handle this error */
meta_error_trap_pop (window->display);
/* stick frame to the window */
window->frame = frame;
/* Now that frame->xwindow is registered with window, we can set its
* style and background.
*/
meta_frame_update_style (frame);
meta_frame_update_title (frame);
meta_ui_map_frame (frame->window->screen->ui, frame->xwindow);
{
MetaBackend *backend = meta_get_backend ();
if (META_IS_BACKEND_X11 (backend))
{
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
/* Since the backend selects for events on another connection,
* make sure to sync the GTK+ connection to ensure that the
* frame window has been created on the server at this point. */
XSync (window->display->xdisplay, False);
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
XISelectEvents (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
frame->xwindow, &mask, 1);
XISetMask (mask.mask, XI_ButtonPress);
XISetMask (mask.mask, XI_ButtonRelease);
XISetMask (mask.mask, XI_Motion);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISelectEvents (xdisplay, frame->xwindow, &mask, 1);
}
}
/* Move keybindings to frame instead of window */
meta_window_grab_keys (window);
}
static gboolean
meta_display_handle_event (MetaDisplay *display,
const ClutterEvent *event)
{
MetaWindow *window;
gboolean bypass_clutter = FALSE;
G_GNUC_UNUSED gboolean bypass_wayland = FALSE;
MetaGestureTracker *tracker;
ClutterEventSequence *sequence;
sequence = clutter_event_get_event_sequence (event);
/* Set the pointer emulating sequence on touch begin, if eligible */
if (event->type == CLUTTER_TOUCH_BEGIN &&
!display->pointer_emulating_sequence &&
sequence_is_pointer_emulated (display, event))
display->pointer_emulating_sequence = sequence;
#ifdef HAVE_WAYLAND
MetaWaylandCompositor *compositor = NULL;
if (meta_is_wayland_compositor ())
{
compositor = meta_wayland_compositor_get_default ();
meta_wayland_compositor_update (compositor, event);
}
#endif
if (meta_is_wayland_compositor () && event->type == CLUTTER_MOTION)
{
MetaCursorTracker *tracker = meta_cursor_tracker_get_for_screen (NULL);
meta_cursor_tracker_update_position (tracker, event->motion.x, event->motion.y);
}
handle_idletime_for_event (event);
window = get_window_for_event (display, event);
display->current_time = event->any.time;
if (window && !window->override_redirect &&
(event->type == CLUTTER_KEY_PRESS ||
event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_TOUCH_BEGIN))
{
if (CurrentTime == display->current_time)
{
/* We can't use missing (i.e. invalid) timestamps to set user time,
* nor do we want to use them to sanity check other timestamps.
* See bug 313490 for more details.
*/
meta_warning ("Event has no timestamp! You may be using a broken "
"program such as xse. Please ask the authors of that "
"program to fix it.\n");
}
else
{
meta_window_set_user_time (window, display->current_time);
meta_display_sanity_check_timestamps (display, display->current_time);
}
}
tracker = meta_display_get_gesture_tracker (display);
if (meta_gesture_tracker_handle_event (tracker, event))
{
bypass_wayland = bypass_clutter = TRUE;
goto out;
}
if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
{
if (meta_window_handle_mouse_grab_op_event (window, event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
goto out;
}
}
/* For key events, it's important to enforce single-handling, or
* we can get into a confused state. So if a keybinding is
* handled (because it's one of our hot-keys, or because we are
* in a keyboard-grabbed mode like moving a window, we don't
* want to pass the key event to the compositor or Wayland at all.
*/
if (meta_keybindings_process_event (display, window, event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
goto out;
}
if (window)
{
if (!clutter_event_get_event_sequence (event))
{
/* Swallow all non-touch events on windows that come our way.
* Touch events that reach here aren't yet in an accepted state,
* so Clutter must see them to maybe trigger gestures into
* recognition.
*/
bypass_clutter = TRUE;
}
meta_window_handle_ungrabbed_event (window, event);
/* This might start a grab op. If it does, then filter out the
* event, and if it doesn't, replay the event to release our
* own sync grab. */
if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
else
{
/* Only replay button press events, since that's where we
* have the synchronous grab. */
if (event->type == CLUTTER_BUTTON_PRESS)
{
MetaBackend *backend = meta_get_backend ();
if (META_IS_BACKEND_X11 (backend))
{
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
meta_verbose ("Allowing events time %u\n",
(unsigned int)event->button.time);
XIAllowEvents (xdisplay, clutter_event_get_device_id (event),
XIReplayDevice, event->button.time);
}
}
}
goto out;
}
out:
/* If the compositor has a grab, don't pass that through to Wayland */
if (display->event_route == META_EVENT_ROUTE_COMPOSITOR_GRAB)
bypass_wayland = TRUE;
/* If a Wayland client has a grab, don't pass that through to Clutter */
if (display->event_route == META_EVENT_ROUTE_WAYLAND_POPUP)
bypass_clutter = TRUE;
#ifdef HAVE_WAYLAND
if (compositor && !bypass_wayland)
{
if (meta_wayland_compositor_handle_event (compositor, event))
bypass_clutter = TRUE;
}
#endif
/* Unset the pointer emulating sequence after its end event is processed */
if (event->type == CLUTTER_TOUCH_END &&
display->pointer_emulating_sequence == sequence)
display->pointer_emulating_sequence = NULL;
display->current_time = CurrentTime;
return bypass_clutter;
}
void
meta_compositor_manage (MetaCompositor *compositor)
{
MetaDisplay *display = compositor->display;
Display *xdisplay = display->xdisplay;
MetaScreen *screen = display->screen;
Window xwin = 0;
gint width, height;
meta_screen_set_cm_selection (display->screen);
if (meta_is_wayland_compositor ())
{
MetaWaylandCompositor *wayland_compositor = meta_wayland_compositor_get_default ();
compositor->stage = meta_stage_new ();
wayland_compositor->stage = compositor->stage;
meta_screen_get_size (screen, &width, &height);
clutter_actor_set_size (compositor->stage, width, height);
clutter_actor_show (compositor->stage);
}
else
{
compositor->stage = clutter_stage_new ();
meta_screen_get_size (screen, &width, &height);
clutter_actor_realize (compositor->stage);
xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (compositor->stage));
XResizeWindow (xdisplay, xwin, width, height);
{
MetaBackendX11 *backend = META_BACKEND_X11 (meta_get_backend ());
Display *backend_xdisplay = meta_backend_x11_get_xdisplay (backend);
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
XISetMask (mask.mask, XI_KeyPress);
XISetMask (mask.mask, XI_KeyRelease);
XISetMask (mask.mask, XI_ButtonPress);
XISetMask (mask.mask, XI_ButtonRelease);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISetMask (mask.mask, XI_FocusIn);
XISetMask (mask.mask, XI_FocusOut);
XISetMask (mask.mask, XI_Motion);
XIClearMask (mask.mask, XI_TouchBegin);
XIClearMask (mask.mask, XI_TouchEnd);
XIClearMask (mask.mask, XI_TouchUpdate);
XISelectEvents (backend_xdisplay, xwin, &mask, 1);
}
}
/* We use connect_after() here to accomodate code in GNOME Shell that,
* when benchmarking drawing performance, connects to ::after-paint
* and calls glFinish(). The timing information from that will be
* more accurate if we hold off until that completes before we signal
* apps to begin drawing the next frame. If there are no other
* connections to ::after-paint, connect() vs. connect_after() doesn't
* matter.
*/
g_signal_connect_after (CLUTTER_STAGE (compositor->stage), "after-paint",
G_CALLBACK (after_stage_paint), compositor);
clutter_stage_set_sync_delay (CLUTTER_STAGE (compositor->stage), META_SYNC_DELAY);
compositor->window_group = meta_window_group_new (screen);
compositor->top_window_group = meta_window_group_new (screen);
clutter_actor_add_child (compositor->stage, compositor->window_group);
clutter_actor_add_child (compositor->stage, compositor->top_window_group);
if (meta_is_wayland_compositor ())
{
/* NB: When running as a wayland compositor we don't need an X
* composite overlay window, and we don't need to play any input
* region tricks to redirect events into clutter. */
compositor->output = None;
}
else
{
compositor->output = screen->composite_overlay_window;
XReparentWindow (xdisplay, xwin, compositor->output, 0, 0);
meta_empty_stage_input_region (screen);
/* Make sure there isn't any left-over output shape on the
* overlay window by setting the whole screen to be an
* output region.
*
* Note: there doesn't seem to be any real chance of that
* because the X server will destroy the overlay window
* when the last client using it exits.
*/
XFixesSetWindowShapeRegion (xdisplay, compositor->output, ShapeBounding, 0, 0, None);
/* Map overlay window before redirecting windows offscreen so we catch their
* contents until we show the stage.
*/
XMapWindow (xdisplay, compositor->output);
}
redirect_windows (display->screen);
compositor->plugin_mgr = meta_plugin_manager_new (compositor);
}
