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 gboolean
meta_backend_x11_grab_device (MetaBackend *backend,
int device_id,
uint32_t timestamp)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
int ret;
if (timestamp != CurrentTime)
timestamp = MAX (timestamp, priv->latest_evtime);
XISetMask (mask.mask, XI_ButtonPress);
XISetMask (mask.mask, XI_ButtonRelease);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISetMask (mask.mask, XI_Motion);
XISetMask (mask.mask, XI_KeyPress);
XISetMask (mask.mask, XI_KeyRelease);
ret = XIGrabDevice (priv->xdisplay, device_id,
meta_backend_x11_get_xwindow (x11),
timestamp,
None,
XIGrabModeAsync, XIGrabModeAsync,
False, /* owner_events */
&mask);
return (ret == Success);
}
static void
meta_backend_x11_nested_translate_device_event (MetaBackendX11 *x11,
XIDeviceEvent *device_event)
{
/* This codepath should only ever trigger as an X11 compositor,
* and never under nested, as under nested all backend events
* should be reported with respect to the stage window.
*/
g_assert (device_event->event == meta_backend_x11_get_xwindow (x11));
}
static void
translate_crossing_event (MetaBackendX11 *x11,
XIEnterEvent *enter_event)
{
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
/* Throw out weird events generated by grabs. */
if (enter_event->mode == XINotifyGrab ||
enter_event->mode == XINotifyUngrab)
{
enter_event->event = None;
return;
}
Window stage_window = meta_backend_x11_get_xwindow (x11);
if (enter_event->event != stage_window &&
priv->mode == META_BACKEND_X11_MODE_COMPOSITOR)
{
enter_event->event = meta_backend_x11_get_xwindow (x11);
enter_event->event_x = enter_event->root_x;
enter_event->event_y = enter_event->root_y;
}
}
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
translate_crossing_event (MetaBackendX11 *x11,
XIEnterEvent *enter_event)
{
/* Throw out weird events generated by grabs. */
if (enter_event->mode == XINotifyGrab ||
enter_event->mode == XINotifyUngrab)
{
enter_event->event = None;
return;
}
enter_event->event = meta_backend_x11_get_xwindow (x11);
}
static void
meta_backend_x11_select_stage_events (MetaBackend *backend)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (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);
if (priv->mode == META_BACKEND_X11_MODE_NESTED)
{
/* 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 (priv->xdisplay, xwin, &mask, 1);
if (priv->mode == META_BACKEND_X11_MODE_NESTED)
{
/* 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(priv->xdisplay, xwin, &xwa);
XSelectInput(priv->xdisplay, xwin,
xwa.your_event_mask | FocusChangeMask | KeymapStateMask);
}
}
static void
meta_backend_x11_warp_pointer (MetaBackend *backend,
int x,
int y)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
XIWarpPointer (priv->xdisplay,
META_VIRTUAL_CORE_POINTER_ID,
None,
meta_backend_x11_get_xwindow (x11),
0, 0, 0, 0,
x, y);
}
static void
meta_backend_x11_update_screen_size (MetaBackend *backend,
int width, int height)
{
if (meta_is_wayland_compositor ())
{
/* For a nested wayland session, we want to go through Clutter to update the
* toplevel window size, rather than doing it directly.
*/
META_BACKEND_CLASS (meta_backend_x11_parent_class)->update_screen_size (backend, width, height);
}
else
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
Window xwin = meta_backend_x11_get_xwindow (x11);
XResizeWindow (priv->xdisplay, xwin, width, height);
}
}
static void
meta_backend_x11_update_screen_size (MetaBackend *backend,
int width, int height)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
if (priv->mode == META_BACKEND_X11_MODE_NESTED)
{
ClutterActor *stage = meta_backend_get_stage (backend);
MetaRenderer *renderer = meta_backend_get_renderer (backend);
if (meta_is_stage_views_enabled ())
meta_renderer_rebuild_views (renderer);
clutter_actor_set_size (stage, width, height);
}
else
{
Window xwin = meta_backend_x11_get_xwindow (x11);
XResizeWindow (priv->xdisplay, xwin, width, height);
}
}
static void
translate_device_event (MetaBackendX11 *x11,
XIDeviceEvent *device_event)
{
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
Window stage_window = meta_backend_x11_get_xwindow (x11);
if (device_event->event != stage_window)
{
/* This codepath should only ever trigger as an X11 compositor,
* and never under nested, as under nested all backend events
* should be reported with respect to the stage window. */
g_assert (priv->mode == META_BACKEND_X11_MODE_COMPOSITOR);
device_event->event = stage_window;
/* As an X11 compositor, the stage window is always at 0,0, so
* using root coordinates will give us correct stage coordinates
* as well... */
device_event->event_x = device_event->root_x;
device_event->event_y = device_event->root_y;
}
if (!device_event->send_event && device_event->time != CurrentTime)
{
if (device_event->time < priv->latest_evtime)
{
/* Emulated pointer events received after XIRejectTouch is received
* on a passive touch grab will contain older timestamps, update those
* so we dont get InvalidTime at grabs.
*/
device_event->time = priv->latest_evtime;
}
/* Update the internal latest evtime, for any possible later use */
priv->latest_evtime = device_event->time;
}
}
static void
meta_backend_x11_select_stage_events (MetaBackend *backend)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (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);
XIClearMask (mask.mask, XI_TouchBegin);
XIClearMask (mask.mask, XI_TouchEnd);
XIClearMask (mask.mask, XI_TouchUpdate);
XISelectEvents (priv->xdisplay, xwin, &mask, 1);
}
static void
handle_host_xevent (MetaBackend *backend,
XEvent *event)
{
MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
MetaBackendX11Private *priv = meta_backend_x11_get_instance_private (x11);
gboolean bypass_clutter = FALSE;
XGetEventData (priv->xdisplay, &event->xcookie);
{
MetaDisplay *display = meta_get_display ();
if (display)
{
MetaCompositor *compositor = display->compositor;
if (meta_plugin_manager_xevent_filter (compositor->plugin_mgr, event))
bypass_clutter = TRUE;
}
}
if (priv->mode == META_BACKEND_X11_MODE_NESTED && event->type == FocusIn)
{
#ifdef HAVE_WAYLAND
Window xwin = meta_backend_x11_get_xwindow(x11);
XEvent xev;
if (event->xfocus.window == xwin)
{
/* Since we've selected for KeymapStateMask, every FocusIn is followed immediately
* by a KeymapNotify event */
XMaskEvent(priv->xdisplay, KeymapStateMask, &xev);
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
meta_wayland_compositor_update_key_state (compositor, xev.xkeymap.key_vector, 32, 8);
}
#else
g_assert_not_reached ();
#endif
}
if (event->type == (priv->xsync_event_base + XSyncAlarmNotify))
handle_alarm_notify (backend, event);
if (event->type == priv->xkb_event_base)
{
XkbEvent *xkb_ev = (XkbEvent *) event;
if (xkb_ev->any.device == META_VIRTUAL_CORE_KEYBOARD_ID)
{
switch (xkb_ev->any.xkb_type)
{
case XkbNewKeyboardNotify:
case XkbMapNotify:
keymap_changed (backend);
break;
case XkbStateNotify:
if (xkb_ev->state.changed & XkbGroupLockMask)
{
if (priv->locked_group != xkb_ev->state.locked_group)
XkbLockGroup (priv->xdisplay, XkbUseCoreKbd, priv->locked_group);
}
break;
default:
break;
}
}
}
{
MetaMonitorManager *manager = meta_backend_get_monitor_manager (backend);
if (META_IS_MONITOR_MANAGER_XRANDR (manager) &&
meta_monitor_manager_xrandr_handle_xevent (META_MONITOR_MANAGER_XRANDR (manager), event))
bypass_clutter = TRUE;
}
if (!bypass_clutter)
{
handle_input_event (x11, event);
clutter_x11_handle_event (event);
}
XFreeEventData (priv->xdisplay, &event->xcookie);
}
void
meta_compositor_manage (MetaCompositor *compositor)
{
MetaDisplay *display = compositor->display;
Display *xdisplay = display->xdisplay;
MetaScreen *screen = display->screen;
MetaBackend *backend = meta_get_backend ();
meta_screen_set_cm_selection (display->screen);
compositor->stage = meta_backend_get_stage (backend);
/* 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);
compositor->feedback_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);
clutter_actor_add_child (compositor->stage, compositor->feedback_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
{
Window xwin;
compositor->output = screen->composite_overlay_window;
xwin = meta_backend_x11_get_xwindow (META_BACKEND_X11 (backend));
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);
compositor->have_x11_sync_object = meta_sync_ring_init (xdisplay);
}
redirect_windows (display->screen);
compositor->plugin_mgr = meta_plugin_manager_new (compositor);
}