/* GDK - The GIMP Drawing Kit * gdkdisplay-x11.c * * Copyright 2001 Sun Microsystems Inc. * Copyright (C) 2004 Nokia Corporation * * Erwann Chenede * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library. If not, see . */ #include "config.h" #include "gdkasync.h" #include "gdkdisplay.h" #include "gdkeventsource.h" #include "gdkeventtranslator.h" #include "gdkinternals.h" #include "gdkscreen.h" #include "gdkinternals.h" #include "gdkdeviceprivate.h" #include "gdkkeysprivate.h" #include "gdkdevicemanager.h" #include "xsettings-client.h" #include "gdkdisplay-x11.h" #include "gdkprivate-x11.h" #include "gdkscreen-x11.h" #include #include #include #include #include #include #include #ifdef HAVE_XKB #include #endif #ifdef HAVE_XFIXES #include #endif #include #ifdef HAVE_XCOMPOSITE #include #endif #ifdef HAVE_XDAMAGE #include #endif #ifdef HAVE_RANDR #include #endif typedef struct _GdkErrorTrap GdkErrorTrap; struct _GdkErrorTrap { /* Next sequence when trap was pushed, i.e. first sequence to * ignore */ gulong start_sequence; /* Next sequence when trap was popped, i.e. first sequence * to not ignore. 0 if trap is still active. */ gulong end_sequence; /* Most recent error code within the sequence */ int error_code; }; static void gdk_x11_display_dispose (GObject *object); static void gdk_x11_display_finalize (GObject *object); static void gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface); static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator, GdkDisplay *display, GdkEvent *event, XEvent *xevent); static void gdk_internal_connection_watch (Display *display, XPointer arg, gint fd, gboolean opening, XPointer *watch_data); typedef struct _GdkEventTypeX11 GdkEventTypeX11; struct _GdkEventTypeX11 { gint base; gint n_events; }; /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS, * but including them here has the side-effect of getting them * into the internal Xlib cache */ static const char *const precache_atoms[] = { "UTF8_STRING", "WM_CLIENT_LEADER", "WM_DELETE_WINDOW", "WM_ICON_NAME", "WM_LOCALE_NAME", "WM_NAME", "WM_PROTOCOLS", "WM_TAKE_FOCUS", "WM_WINDOW_ROLE", "_NET_ACTIVE_WINDOW", "_NET_CURRENT_DESKTOP", "_NET_FRAME_EXTENTS", "_NET_STARTUP_ID", "_NET_WM_CM_S0", "_NET_WM_DESKTOP", "_NET_WM_ICON", "_NET_WM_ICON_NAME", "_NET_WM_NAME", "_NET_WM_PID", "_NET_WM_PING", "_NET_WM_STATE", "_NET_WM_STATE_ABOVE", "_NET_WM_STATE_BELOW", "_NET_WM_STATE_FULLSCREEN", "_NET_WM_STATE_MODAL", "_NET_WM_STATE_MAXIMIZED_VERT", "_NET_WM_STATE_MAXIMIZED_HORZ", "_NET_WM_STATE_SKIP_TASKBAR", "_NET_WM_STATE_SKIP_PAGER", "_NET_WM_STATE_STICKY", "_NET_WM_SYNC_REQUEST", "_NET_WM_SYNC_REQUEST_COUNTER", "_NET_WM_WINDOW_TYPE", "_NET_WM_WINDOW_TYPE_NORMAL", "_NET_WM_USER_TIME", "_NET_VIRTUAL_ROOTS", "GDK_SELECTION", "_NET_WM_STATE_FOCUSED" }; static char *gdk_sm_client_id; G_DEFINE_TYPE_WITH_CODE (GdkX11Display, gdk_x11_display, GDK_TYPE_DISPLAY, G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR, gdk_x11_display_event_translator_init)) static void gdk_x11_display_init (GdkX11Display *display) { _gdk_x11_display_manager_add_display (gdk_display_manager_get (), GDK_DISPLAY (display)); } static void gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface) { iface->translate_event = gdk_x11_display_translate_event; } static void do_net_wm_state_changes (GdkWindow *window) { GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window); GdkWindowState old_state; if (GDK_WINDOW_DESTROYED (window) || gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL) return; old_state = gdk_window_get_state (window); /* For found_sticky to remain TRUE, we have to also be on desktop * 0xFFFFFFFF */ if (old_state & GDK_WINDOW_STATE_STICKY) { if (!(toplevel->have_sticky && toplevel->on_all_desktops)) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_STICKY, 0); } else { if (toplevel->have_sticky && toplevel->on_all_desktops) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_STICKY); } if (old_state & GDK_WINDOW_STATE_FULLSCREEN) { if (!toplevel->have_fullscreen) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_FULLSCREEN, 0); } else { if (toplevel->have_fullscreen) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_FULLSCREEN); } /* Our "maximized" means both vertical and horizontal; if only one, * we don't expose that via GDK */ if (old_state & GDK_WINDOW_STATE_MAXIMIZED) { if (!(toplevel->have_maxvert && toplevel->have_maxhorz)) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_MAXIMIZED, 0); } else { if (toplevel->have_maxvert && toplevel->have_maxhorz) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_MAXIMIZED); } if (old_state & GDK_WINDOW_STATE_FOCUSED) { if (!toplevel->have_focused) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_FOCUSED, 0); } else { if (toplevel->have_focused) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_FOCUSED); } if (old_state & GDK_WINDOW_STATE_ICONIFIED) { if (!toplevel->have_hidden) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_ICONIFIED, 0); } else { if (toplevel->have_hidden) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_ICONIFIED); } } static void gdk_check_wm_desktop_changed (GdkWindow *window) { GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window); GdkDisplay *display = GDK_WINDOW_DISPLAY (window); Atom type; gint format; gulong nitems; gulong bytes_after; guchar *data; gulong *desktop; type = None; gdk_x11_display_error_trap_push (display); XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window), gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"), 0, G_MAXLONG, False, XA_CARDINAL, &type, &format, &nitems, &bytes_after, &data); gdk_x11_display_error_trap_pop_ignored (display); if (type != None) { desktop = (gulong *)data; toplevel->on_all_desktops = ((*desktop & 0xFFFFFFFF) == 0xFFFFFFFF); XFree (desktop); } else toplevel->on_all_desktops = FALSE; do_net_wm_state_changes (window); } static void gdk_check_wm_state_changed (GdkWindow *window) { GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window); GdkDisplay *display = GDK_WINDOW_DISPLAY (window); GdkScreen *screen = GDK_WINDOW_SCREEN (window); Atom type; gint format; gulong nitems; gulong bytes_after; guchar *data; Atom *atoms = NULL; gulong i; gboolean had_sticky = toplevel->have_sticky; toplevel->have_sticky = FALSE; toplevel->have_maxvert = FALSE; toplevel->have_maxhorz = FALSE; toplevel->have_fullscreen = FALSE; toplevel->have_focused = FALSE; toplevel->have_hidden = FALSE; type = None; gdk_x11_display_error_trap_push (display); XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window), gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"), 0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems, &bytes_after, &data); gdk_x11_display_error_trap_pop_ignored (display); if (type != None) { Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY"); Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT"); Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ"); Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN"); Atom focused_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FOCUSED"); Atom hidden_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_HIDDEN"); atoms = (Atom *)data; i = 0; while (i < nitems) { if (atoms[i] == sticky_atom) toplevel->have_sticky = TRUE; else if (atoms[i] == maxvert_atom) toplevel->have_maxvert = TRUE; else if (atoms[i] == maxhorz_atom) toplevel->have_maxhorz = TRUE; else if (atoms[i] == fullscreen_atom) toplevel->have_fullscreen = TRUE; else if (atoms[i] == focused_atom) toplevel->have_focused = TRUE; else if (atoms[i] == hidden_atom) toplevel->have_hidden = TRUE; ++i; } XFree (atoms); } if (!gdk_x11_screen_supports_net_wm_hint (screen, gdk_atom_intern_static_string ("_NET_WM_STATE_FOCUSED"))) toplevel->have_focused = TRUE; /* When have_sticky is turned on, we have to check the DESKTOP property * as well. */ if (toplevel->have_sticky && !had_sticky) gdk_check_wm_desktop_changed (window); else do_net_wm_state_changes (window); } static GdkWindow * get_event_window (GdkEventTranslator *translator, XEvent *xevent) { GdkDisplay *display; Window xwindow; display = (GdkDisplay *) translator; switch (xevent->type) { case DestroyNotify: xwindow = xevent->xdestroywindow.window; break; case UnmapNotify: xwindow = xevent->xunmap.window; break; case MapNotify: xwindow = xevent->xmap.window; break; case ConfigureNotify: xwindow = xevent->xconfigure.window; break; default: xwindow = xevent->xany.window; } return gdk_x11_window_lookup_for_display (display, xwindow); } static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator, GdkDisplay *display, GdkEvent *event, XEvent *xevent) { GdkWindow *window; GdkWindowImplX11 *window_impl = NULL; GdkScreen *screen = NULL; GdkX11Screen *x11_screen = NULL; GdkToplevelX11 *toplevel = NULL; GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); gboolean return_val; /* Find the GdkWindow that this event relates to. * Basically this means substructure events * are reported same as structure events */ window = get_event_window (translator, xevent); if (window) { /* We may receive events such as NoExpose/GraphicsExpose * and ShmCompletion for pixmaps */ if (!GDK_IS_WINDOW (window)) return FALSE; screen = GDK_WINDOW_SCREEN (window); x11_screen = GDK_X11_SCREEN (screen); toplevel = _gdk_x11_window_get_toplevel (window); window_impl = GDK_WINDOW_IMPL_X11 (window->impl); g_object_ref (window); } event->any.window = window; event->any.send_event = xevent->xany.send_event ? TRUE : FALSE; if (window && GDK_WINDOW_DESTROYED (window)) { if (xevent->type != DestroyNotify) { return_val = FALSE; goto done; } } if (xevent->type == DestroyNotify) { int i, n; n = gdk_display_get_n_screens (display); for (i = 0; i < n; i++) { screen = gdk_display_get_screen (display, i); x11_screen = GDK_X11_SCREEN (screen); if (x11_screen->wmspec_check_window == xevent->xdestroywindow.window) { x11_screen->wmspec_check_window = None; x11_screen->last_wmspec_check_time = 0; g_free (x11_screen->window_manager_name); x11_screen->window_manager_name = g_strdup ("unknown"); /* careful, reentrancy */ _gdk_x11_screen_window_manager_changed (screen); return_val = FALSE; goto done; } } } /* We do a "manual" conversion of the XEvent to a * GdkEvent. The structures are mostly the same so * the conversion is fairly straightforward. We also * optionally print debugging info regarding events * received. */ return_val = TRUE; switch (xevent->type) { case KeymapNotify: GDK_NOTE (EVENTS, g_message ("keymap notify")); /* Not currently handled */ return_val = FALSE; break; case Expose: GDK_NOTE (EVENTS, g_message ("expose:\t\twindow: %ld %d x,y: %d %d w,h: %d %d%s", xevent->xexpose.window, xevent->xexpose.count, xevent->xexpose.x, xevent->xexpose.y, xevent->xexpose.width, xevent->xexpose.height, event->any.send_event ? " (send)" : "")); if (window == NULL) { return_val = FALSE; break; } { GdkRectangle expose_rect; expose_rect.x = xevent->xexpose.x; expose_rect.y = xevent->xexpose.y; expose_rect.width = xevent->xexpose.width; expose_rect.height = xevent->xexpose.height; _gdk_x11_window_process_expose (window, xevent->xexpose.serial, &expose_rect); return_val = FALSE; } break; case GraphicsExpose: { GdkRectangle expose_rect; GDK_NOTE (EVENTS, g_message ("graphics expose:\tdrawable: %ld", xevent->xgraphicsexpose.drawable)); if (window == NULL) { return_val = FALSE; break; } expose_rect.x = xevent->xgraphicsexpose.x; expose_rect.y = xevent->xgraphicsexpose.y; expose_rect.width = xevent->xgraphicsexpose.width; expose_rect.height = xevent->xgraphicsexpose.height; _gdk_x11_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect); return_val = FALSE; } break; case VisibilityNotify: #ifdef G_ENABLE_DEBUG if (_gdk_debug_flags & GDK_DEBUG_EVENTS) switch (xevent->xvisibility.state) { case VisibilityFullyObscured: g_message ("visibility notify:\twindow: %ld none", xevent->xvisibility.window); break; case VisibilityPartiallyObscured: g_message ("visibility notify:\twindow: %ld partial", xevent->xvisibility.window); break; case VisibilityUnobscured: g_message ("visibility notify:\twindow: %ld full", xevent->xvisibility.window); break; } #endif /* G_ENABLE_DEBUG */ if (window == NULL) { return_val = FALSE; break; } event->visibility.type = GDK_VISIBILITY_NOTIFY; event->visibility.window = window; switch (xevent->xvisibility.state) { case VisibilityFullyObscured: event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED; break; case VisibilityPartiallyObscured: event->visibility.state = GDK_VISIBILITY_PARTIAL; break; case VisibilityUnobscured: event->visibility.state = GDK_VISIBILITY_UNOBSCURED; break; } break; case CreateNotify: GDK_NOTE (EVENTS, g_message ("create notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d parent: %ld ovr: %d", xevent->xcreatewindow.window, xevent->xcreatewindow.x, xevent->xcreatewindow.y, xevent->xcreatewindow.width, xevent->xcreatewindow.height, xevent->xcreatewindow.border_width, xevent->xcreatewindow.parent, xevent->xcreatewindow.override_redirect)); /* not really handled */ break; case DestroyNotify: GDK_NOTE (EVENTS, g_message ("destroy notify:\twindow: %ld", xevent->xdestroywindow.window)); /* Ignore DestroyNotify from SubstructureNotifyMask */ if (xevent->xdestroywindow.window == xevent->xdestroywindow.event) { event->any.type = GDK_DESTROY; event->any.window = window; return_val = window && !GDK_WINDOW_DESTROYED (window); if (window && GDK_WINDOW_XID (window) != x11_screen->xroot_window) gdk_window_destroy_notify (window); } else return_val = FALSE; break; case UnmapNotify: GDK_NOTE (EVENTS, g_message ("unmap notify:\t\twindow: %ld", xevent->xmap.window)); event->any.type = GDK_UNMAP; event->any.window = window; /* If the WM supports the _NET_WM_STATE_HIDDEN hint, we do not want to * interpret UnmapNotify events as implying iconic state. * http://bugzilla.gnome.org/show_bug.cgi?id=590726. */ if (screen && !gdk_x11_screen_supports_net_wm_hint (screen, gdk_atom_intern_static_string ("_NET_WM_STATE_HIDDEN"))) { /* If we are shown (not withdrawn) and get an unmap, it means we were * iconified in the X sense. If we are withdrawn, and get an unmap, it * means we hid the window ourselves, so we will have already flipped * the iconified bit off. */ if (window) { if (GDK_WINDOW_IS_MAPPED (window)) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_ICONIFIED); _gdk_x11_window_grab_check_unmap (window, xevent->xany.serial); } } break; case MapNotify: GDK_NOTE (EVENTS, g_message ("map notify:\t\twindow: %ld", xevent->xmap.window)); event->any.type = GDK_MAP; event->any.window = window; /* Unset iconified if it was set */ if (window && (window->state & GDK_WINDOW_STATE_ICONIFIED)) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_ICONIFIED, 0); break; case ReparentNotify: GDK_NOTE (EVENTS, g_message ("reparent notify:\twindow: %ld x,y: %d %d parent: %ld ovr: %d", xevent->xreparent.window, xevent->xreparent.x, xevent->xreparent.y, xevent->xreparent.parent, xevent->xreparent.override_redirect)); /* Not currently handled */ return_val = FALSE; break; case ConfigureNotify: GDK_NOTE (EVENTS, g_message ("configure notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d above: %ld ovr: %d%s", xevent->xconfigure.window, xevent->xconfigure.x, xevent->xconfigure.y, xevent->xconfigure.width, xevent->xconfigure.height, xevent->xconfigure.border_width, xevent->xconfigure.above, xevent->xconfigure.override_redirect, !window ? " (discarding)" : window->window_type == GDK_WINDOW_CHILD ? " (discarding child)" : xevent->xconfigure.event != xevent->xconfigure.window ? " (discarding substructure)" : "")); if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT) { window->width = xevent->xconfigure.width; window->height = xevent->xconfigure.height; _gdk_window_update_size (window); _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl)); _gdk_x11_screen_size_changed (screen, xevent); } #ifdef HAVE_XSYNC if (toplevel && display_x11->use_sync && !XSyncValueIsZero (toplevel->pending_counter_value)) { toplevel->current_counter_value = toplevel->pending_counter_value; XSyncIntToValue (&toplevel->pending_counter_value, 0); } #endif if (!window || xevent->xconfigure.event != xevent->xconfigure.window || GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD || GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT) return_val = FALSE; else { event->configure.type = GDK_CONFIGURE; event->configure.window = window; event->configure.width = xevent->xconfigure.width; event->configure.height = xevent->xconfigure.height; if (!xevent->xconfigure.send_event && !xevent->xconfigure.override_redirect && !GDK_WINDOW_DESTROYED (window)) { gint tx = 0; gint ty = 0; Window child_window = 0; gdk_x11_display_error_trap_push (display); if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window), x11_screen->xroot_window, 0, 0, &tx, &ty, &child_window)) { event->configure.x = tx; event->configure.y = ty; } gdk_x11_display_error_trap_pop_ignored (display); } else { event->configure.x = xevent->xconfigure.x; event->configure.y = xevent->xconfigure.y; } window->x = event->configure.x; window->y = event->configure.y; window->width = xevent->xconfigure.width; window->height = xevent->xconfigure.height; _gdk_window_update_size (window); _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl)); if (window->resize_count >= 1) { window->resize_count -= 1; if (window->resize_count == 0) _gdk_x11_moveresize_configure_done (display, window); } } break; case PropertyNotify: GDK_NOTE (EVENTS, g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s", xevent->xproperty.window, xevent->xproperty.atom, "\"", gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom), "\"")); if (window == NULL) { return_val = FALSE; break; } /* We compare with the serial of the last time we mapped the * window to avoid refetching properties that we set ourselves */ if (toplevel && xevent->xproperty.serial >= toplevel->map_serial) { if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE")) gdk_check_wm_state_changed (window); if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP")) gdk_check_wm_desktop_changed (window); } if (window->event_mask & GDK_PROPERTY_CHANGE_MASK) { event->property.type = GDK_PROPERTY_NOTIFY; event->property.window = window; event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom); event->property.time = xevent->xproperty.time; event->property.state = xevent->xproperty.state; } else return_val = FALSE; break; case SelectionClear: GDK_NOTE (EVENTS, g_message ("selection clear:\twindow: %ld", xevent->xproperty.window)); if (_gdk_x11_selection_filter_clear_event (&xevent->xselectionclear)) { event->selection.type = GDK_SELECTION_CLEAR; event->selection.window = window; event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection); event->selection.time = xevent->xselectionclear.time; } else return_val = FALSE; break; case SelectionRequest: GDK_NOTE (EVENTS, g_message ("selection request:\twindow: %ld", xevent->xproperty.window)); event->selection.type = GDK_SELECTION_REQUEST; event->selection.window = window; event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection); event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target); event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property); if (xevent->xselectionrequest.requestor != None) event->selection.requestor = gdk_x11_window_foreign_new_for_display (display, xevent->xselectionrequest.requestor); else event->selection.requestor = NULL; event->selection.time = xevent->xselectionrequest.time; break; case SelectionNotify: GDK_NOTE (EVENTS, g_message ("selection notify:\twindow: %ld", xevent->xproperty.window)); event->selection.type = GDK_SELECTION_NOTIFY; event->selection.window = window; event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection); event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target); if (xevent->xselection.property == None) event->selection.property = GDK_NONE; else event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property); event->selection.time = xevent->xselection.time; break; case ColormapNotify: GDK_NOTE (EVENTS, g_message ("colormap notify:\twindow: %ld", xevent->xcolormap.window)); /* Not currently handled */ return_val = FALSE; break; case ClientMessage: GDK_NOTE (EVENTS, g_message ("client message:\twindow: %ld", xevent->xclient.window)); /* Not currently handled */ return_val = FALSE; break; case MappingNotify: GDK_NOTE (EVENTS, g_message ("mapping notify")); /* Let XLib know that there is a new keyboard mapping. */ XRefreshKeyboardMapping (&xevent->xmapping); _gdk_x11_keymap_keys_changed (display); return_val = FALSE; break; default: #ifdef HAVE_XFIXES if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify) { XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent; _gdk_x11_screen_process_owner_change (screen, xevent); event->owner_change.type = GDK_OWNER_CHANGE; event->owner_change.window = window; if (selection_notify->owner != None) event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display, selection_notify->owner); else event->owner_change.owner = NULL; event->owner_change.reason = selection_notify->subtype; event->owner_change.selection = gdk_x11_xatom_to_atom_for_display (display, selection_notify->selection); event->owner_change.time = selection_notify->timestamp; event->owner_change.selection_time = selection_notify->selection_timestamp; return_val = TRUE; } else #endif #ifdef HAVE_RANDR if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify || xevent->type - display_x11->xrandr_event_base == RRNotify) { if (screen) _gdk_x11_screen_size_changed (screen, xevent); } else #endif #if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES) if (display_x11->have_xdamage && window && window->composited && xevent->type == display_x11->xdamage_event_base + XDamageNotify && ((XDamageNotifyEvent *) xevent)->damage == window_impl->damage) { XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent; XserverRegion repair; GdkRectangle rect; rect.x = window->x + damage_event->area.x; rect.y = window->y + damage_event->area.y; rect.width = damage_event->area.width; rect.height = damage_event->area.height; repair = XFixesCreateRegion (display_x11->xdisplay, &damage_event->area, 1); XDamageSubtract (display_x11->xdisplay, window_impl->damage, repair, None); XFixesDestroyRegion (display_x11->xdisplay, repair); if (window->parent != NULL) _gdk_x11_window_process_expose (window->parent, damage_event->serial, &rect); return_val = TRUE; } else #endif #ifdef HAVE_XKB if (xevent->type == display_x11->xkb_event_type) { XkbEvent *xkb_event = (XkbEvent *) xevent; switch (xkb_event->any.xkb_type) { case XkbNewKeyboardNotify: case XkbMapNotify: _gdk_x11_keymap_keys_changed (display); return_val = FALSE; break; case XkbStateNotify: _gdk_x11_keymap_state_changed (display, xevent); break; } } else #endif return_val = FALSE; } done: if (return_val) { if (event->any.window) g_object_ref (event->any.window); } else { /* Mark this event as having no resources to be freed */ event->any.window = NULL; event->any.type = GDK_NOTHING; } if (window) g_object_unref (window); return return_val; } GdkFilterReturn _gdk_wm_protocols_filter (GdkXEvent *xev, GdkEvent *event, gpointer data) { XEvent *xevent = (XEvent *)xev; GdkWindow *win = event->any.window; GdkDisplay *display; Atom atom; if (!GDK_IS_X11_WINDOW (win)) return GDK_FILTER_CONTINUE; if (xevent->type != ClientMessage) return GDK_FILTER_CONTINUE; display = GDK_WINDOW_DISPLAY (win); if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS")) return GDK_FILTER_CONTINUE; atom = (Atom) xevent->xclient.data.l[0]; if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW")) { /* The delete window request specifies a window * to delete. We don't actually destroy the * window because "it is only a request". (The * window might contain vital data that the * program does not want destroyed). Instead * the event is passed along to the program, * which should then destroy the window. */ GDK_NOTE (EVENTS, g_message ("delete window:\t\twindow: %ld", xevent->xclient.window)); event->any.type = GDK_DELETE; gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]); return GDK_FILTER_TRANSLATE; } else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS")) { GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window); /* There is no way of knowing reliably whether we are viewable; * so trap errors asynchronously around the XSetInputFocus call */ if (toplevel && win->accept_focus) { gdk_x11_display_error_trap_push (display); XSetInputFocus (GDK_DISPLAY_XDISPLAY (display), toplevel->focus_window, RevertToParent, xevent->xclient.data.l[1]); gdk_x11_display_error_trap_pop_ignored (display); } return GDK_FILTER_REMOVE; } else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") && !_gdk_x11_display_is_root_window (display, xevent->xclient.window)) { XClientMessageEvent xclient = xevent->xclient; xclient.window = GDK_WINDOW_XROOTWIN (win); XSendEvent (GDK_WINDOW_XDISPLAY (win), xclient.window, False, SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient); return GDK_FILTER_REMOVE; } else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") && GDK_X11_DISPLAY (display)->use_sync) { GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window); if (toplevel) { #ifdef HAVE_XSYNC XSyncIntsToValue (&toplevel->pending_counter_value, xevent->xclient.data.l[2], xevent->xclient.data.l[3]); #endif } return GDK_FILTER_REMOVE; } return GDK_FILTER_CONTINUE; } static void gdk_event_init (GdkDisplay *display) { GdkX11Display *display_x11; GdkDeviceManager *device_manager; display_x11 = GDK_X11_DISPLAY (display); display_x11->event_source = gdk_x11_event_source_new (display); gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source, GDK_EVENT_TRANSLATOR (display)); device_manager = gdk_display_get_device_manager (display); gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source, GDK_EVENT_TRANSLATOR (device_manager)); } static void gdk_x11_display_init_input (GdkDisplay *display) { GdkX11Display *display_x11; GdkDeviceManager *device_manager; GdkDevice *device; GList *list, *l; display_x11 = GDK_X11_DISPLAY (display); device_manager = gdk_display_get_device_manager (display); /* For backwards compatibility, just add * floating devices that are not keyboards. */ list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING); for (l = list; l; l = l->next) { device = l->data; if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD) continue; display_x11->input_devices = g_list_prepend (display_x11->input_devices, g_object_ref (l->data)); } g_list_free (list); /* Now set "core" pointer to the first * master device that is a pointer. */ list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER); for (l = list; l; l = l->next) { device = l->data; if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE) continue; display->core_pointer = device; break; } /* Add the core pointer to the devices list */ display_x11->input_devices = g_list_prepend (display_x11->input_devices, g_object_ref (display->core_pointer)); g_list_free (list); } static void set_sm_client_id (GdkDisplay *display, const gchar *sm_client_id) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); if (gdk_display_is_closed (display)) return; if (sm_client_id && strcmp (sm_client_id, "")) XChangeProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"), XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id, strlen (sm_client_id)); else XDeleteProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID")); } GdkDisplay * _gdk_x11_display_open (const gchar *display_name) { Display *xdisplay; GdkDisplay *display; GdkX11Display *display_x11; GdkWindowAttr attr; gint argc; gchar *argv[1]; XClassHint *class_hint; gulong pid; gint i; gint ignore; gint maj, min; xdisplay = XOpenDisplay (display_name); if (!xdisplay) return NULL; display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL); display_x11 = GDK_X11_DISPLAY (display); display_x11->xdisplay = xdisplay; /* Set up handlers for Xlib internal connections */ XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL); _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms)); /* RandR must be initialized before we initialize the screens */ display_x11->have_randr12 = FALSE; display_x11->have_randr13 = FALSE; #ifdef HAVE_RANDR if (XRRQueryExtension (display_x11->xdisplay, &display_x11->xrandr_event_base, &ignore)) { int major, minor; XRRQueryVersion (display_x11->xdisplay, &major, &minor); if ((major == 1 && minor >= 2) || major > 1) { display_x11->have_randr12 = TRUE; if (minor >= 3 || major > 1) display_x11->have_randr13 = TRUE; } gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents); } #endif /* initialize the display's screens */ display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay)); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) display_x11->screens[i] = _gdk_x11_screen_new (display, i); /* We need to initialize events after we have the screen * structures in places */ for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) _gdk_x11_screen_init_events (display_x11->screens[i]); /*set the default screen */ display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)]; display->device_manager = _gdk_x11_device_manager_new (display); gdk_event_init (display); attr.window_type = GDK_WINDOW_TOPLEVEL; attr.wclass = GDK_INPUT_OUTPUT; attr.x = 10; attr.y = 10; attr.width = 10; attr.height = 10; attr.event_mask = 0; display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->default_screen)->root_window, &attr, GDK_WA_X | GDK_WA_Y); (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE; display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window); display_x11->leader_window_title_set = FALSE; #ifdef HAVE_XFIXES if (XFixesQueryExtension (display_x11->xdisplay, &display_x11->xfixes_event_base, &ignore)) { display_x11->have_xfixes = TRUE; gdk_x11_register_standard_event_type (display, display_x11->xfixes_event_base, XFixesNumberEvents); } else #endif display_x11->have_xfixes = FALSE; #ifdef HAVE_XCOMPOSITE if (XCompositeQueryExtension (display_x11->xdisplay, &ignore, &ignore)) { int major, minor; XCompositeQueryVersion (display_x11->xdisplay, &major, &minor); /* Prior to Composite version 0.4, composited windows clipped their * parents, so you had to use IncludeInferiors to draw to the parent * This isn't useful for our purposes, so require 0.4 */ display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4); } else #endif display_x11->have_xcomposite = FALSE; #ifdef HAVE_XDAMAGE if (XDamageQueryExtension (display_x11->xdisplay, &display_x11->xdamage_event_base, &ignore)) { display_x11->have_xdamage = TRUE; gdk_x11_register_standard_event_type (display, display_x11->xdamage_event_base, XDamageNumberEvents); } else #endif display_x11->have_xdamage = FALSE; display_x11->have_shapes = FALSE; display_x11->have_input_shapes = FALSE; if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore)) { display_x11->have_shapes = TRUE; #ifdef ShapeInput if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min)) display_x11->have_input_shapes = (maj == 1 && min >= 1); #endif } display_x11->trusted_client = TRUE; { Window root, child; int rootx, rooty, winx, winy; unsigned int xmask; gdk_x11_display_error_trap_push (display); XQueryPointer (display_x11->xdisplay, GDK_X11_SCREEN (display_x11->default_screen)->xroot_window, &root, &child, &rootx, &rooty, &winx, &winy, &xmask); if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow)) { g_warning ("Connection to display %s appears to be untrusted. Pointer and keyboard grabs and inter-client communication may not work as expected.", gdk_display_get_name (display)); display_x11->trusted_client = FALSE; } } if (g_getenv ("GDK_SYNCHRONIZE")) XSynchronize (display_x11->xdisplay, True); class_hint = XAllocClassHint(); class_hint->res_name = g_get_prgname (); class_hint->res_class = (char *)gdk_get_program_class (); /* XmbSetWMProperties sets the RESOURCE_NAME environment variable * from argv[0], so we just synthesize an argument array here. */ argc = 1; argv[0] = g_get_prgname (); XmbSetWMProperties (display_x11->xdisplay, display_x11->leader_window, NULL, NULL, argv, argc, NULL, NULL, class_hint); XFree (class_hint); if (gdk_sm_client_id) set_sm_client_id (display, gdk_sm_client_id); pid = getpid (); XChangeProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"), XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1); /* We don't yet know a valid time. */ display_x11->user_time = 0; #ifdef HAVE_XKB { gint xkb_major = XkbMajorVersion; gint xkb_minor = XkbMinorVersion; if (XkbLibraryVersion (&xkb_major, &xkb_minor)) { xkb_major = XkbMajorVersion; xkb_minor = XkbMinorVersion; if (XkbQueryExtension (display_x11->xdisplay, NULL, &display_x11->xkb_event_type, NULL, &xkb_major, &xkb_minor)) { Bool detectable_autorepeat_supported; display_x11->use_xkb = TRUE; XkbSelectEvents (display_x11->xdisplay, XkbUseCoreKbd, XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask, XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask); /* keep this in sync with _gdk_x11_keymap_state_changed() */ XkbSelectEventDetails (display_x11->xdisplay, XkbUseCoreKbd, XkbStateNotify, XkbAllStateComponentsMask, XkbModifierStateMask|XkbGroupStateMask); XkbSetDetectableAutoRepeat (display_x11->xdisplay, True, &detectable_autorepeat_supported); GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.", detectable_autorepeat_supported ? "supported" : "not supported")); display_x11->have_xkb_autorepeat = detectable_autorepeat_supported; } } } #endif display_x11->use_sync = FALSE; #ifdef HAVE_XSYNC { int major, minor; int error_base, event_base; if (XSyncQueryExtension (display_x11->xdisplay, &event_base, &error_base) && XSyncInitialize (display_x11->xdisplay, &major, &minor)) display_x11->use_sync = TRUE; } #endif gdk_x11_display_init_input (display); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) _gdk_x11_screen_setup (display_x11->screens[i]); g_signal_emit_by_name (display, "opened"); g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display); return display; } /* * XLib internal connection handling */ typedef struct _GdkInternalConnection GdkInternalConnection; struct _GdkInternalConnection { gint fd; GSource *source; Display *display; }; static gboolean process_internal_connection (GIOChannel *gioc, GIOCondition cond, gpointer data) { GdkInternalConnection *connection = (GdkInternalConnection *)data; GDK_THREADS_ENTER (); XProcessInternalConnection ((Display*)connection->display, connection->fd); GDK_THREADS_LEAVE (); return TRUE; } static gulong gdk_x11_display_get_next_serial (GdkDisplay *display) { return NextRequest (GDK_DISPLAY_XDISPLAY (display)); } static GdkInternalConnection * gdk_add_connection_handler (Display *display, guint fd) { GIOChannel *io_channel; GdkInternalConnection *connection; connection = g_new (GdkInternalConnection, 1); connection->fd = fd; connection->display = display; io_channel = g_io_channel_unix_new (fd); connection->source = g_io_create_watch (io_channel, G_IO_IN); g_source_set_callback (connection->source, (GSourceFunc)process_internal_connection, connection, NULL); g_source_attach (connection->source, NULL); g_io_channel_unref (io_channel); return connection; } static void gdk_remove_connection_handler (GdkInternalConnection *connection) { g_source_destroy (connection->source); g_free (connection); } static void gdk_internal_connection_watch (Display *display, XPointer arg, gint fd, gboolean opening, XPointer *watch_data) { if (opening) *watch_data = (XPointer)gdk_add_connection_handler (display, fd); else gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data); } static const gchar * gdk_x11_display_get_name (GdkDisplay *display) { return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay); } static gint gdk_x11_display_get_n_screens (GdkDisplay *display) { return ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); } static GdkScreen * gdk_x11_display_get_screen (GdkDisplay *display, gint screen_num) { g_return_val_if_fail (ScreenCount (GDK_X11_DISPLAY (display)->xdisplay) > screen_num, NULL); return GDK_X11_DISPLAY (display)->screens[screen_num]; } static GdkScreen * gdk_x11_display_get_default_screen (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->default_screen; } gboolean _gdk_x11_display_is_root_window (GdkDisplay *display, Window xroot_window) { GdkX11Display *display_x11; gint i; display_x11 = GDK_X11_DISPLAY (display); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) { if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window) return TRUE; } return FALSE; } struct XPointerUngrabInfo { GdkDisplay *display; guint32 time; }; static void device_grab_update_callback (GdkDisplay *display, gpointer data, gulong serial) { GdkPointerWindowInfo *pointer_info; GdkDevice *device = data; pointer_info = _gdk_display_get_pointer_info (display, device); _gdk_display_device_grab_update (display, device, pointer_info->last_slave, serial); } #define XSERVER_TIME_IS_LATER(time1, time2) \ ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \ (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \ ) void _gdk_x11_display_update_grab_info (GdkDisplay *display, GdkDevice *device, gint status) { if (status == GrabSuccess) _gdk_x11_roundtrip_async (display, device_grab_update_callback, device); } void _gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display, GdkDevice *device, guint32 time, gulong serial) { GdkDeviceGrabInfo *grab; XFlush (GDK_DISPLAY_XDISPLAY (display)); grab = _gdk_display_get_last_device_grab (display, device); if (grab && (time == GDK_CURRENT_TIME || grab->time == GDK_CURRENT_TIME || !XSERVER_TIME_IS_LATER (grab->time, time))) { grab->serial_end = serial; _gdk_x11_roundtrip_async (display, device_grab_update_callback, device); } } static void gdk_x11_display_beep (GdkDisplay *display) { #ifdef HAVE_XKB XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None); #else XBell (GDK_DISPLAY_XDISPLAY (display), 0); #endif } static void gdk_x11_display_sync (GdkDisplay *display) { XSync (GDK_DISPLAY_XDISPLAY (display), False); } static void gdk_x11_display_flush (GdkDisplay *display) { if (!display->closed) XFlush (GDK_DISPLAY_XDISPLAY (display)); } static gboolean gdk_x11_display_has_pending (GdkDisplay *display) { return XPending (GDK_DISPLAY_XDISPLAY (display)); } static GdkWindow * gdk_x11_display_get_default_group (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return GDK_X11_DISPLAY (display)->leader_gdk_window; } /** * gdk_x11_display_grab: * @display: (type GdkX11Display): a #GdkDisplay * * Call XGrabServer() on @display. * To ungrab the display again, use gdk_x11_display_ungrab(). * * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested. * * Since: 2.2 **/ void gdk_x11_display_grab (GdkDisplay *display) { GdkX11Display *display_x11; g_return_if_fail (GDK_IS_DISPLAY (display)); display_x11 = GDK_X11_DISPLAY (display); if (display_x11->grab_count == 0) XGrabServer (display_x11->xdisplay); display_x11->grab_count++; } /** * gdk_x11_display_ungrab: * @display: (type GdkX11Display): a #GdkDisplay * * Ungrab @display after it has been grabbed with * gdk_x11_display_grab(). * * Since: 2.2 **/ void gdk_x11_display_ungrab (GdkDisplay *display) { GdkX11Display *display_x11; g_return_if_fail (GDK_IS_DISPLAY (display)); display_x11 = GDK_X11_DISPLAY (display);; g_return_if_fail (display_x11->grab_count > 0); display_x11->grab_count--; if (display_x11->grab_count == 0) { XUngrabServer (display_x11->xdisplay); XFlush (display_x11->xdisplay); } } static void gdk_x11_display_dispose (GObject *object) { GdkDisplay *display = GDK_DISPLAY (object); GdkX11Display *display_x11 = GDK_X11_DISPLAY (object); gint i; _gdk_x11_display_manager_remove_display (gdk_display_manager_get (), display); g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) _gdk_screen_close (display_x11->screens[i]); if (display_x11->event_source) { g_source_destroy (display_x11->event_source); g_source_unref (display_x11->event_source); display_x11->event_source = NULL; } G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object); } static void gdk_x11_display_finalize (GObject *object) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (object); gint i; /* Keymap */ if (display_x11->keymap) g_object_unref (display_x11->keymap); /* Free motif Dnd */ if (display_x11->motif_target_lists) { for (i = 0; i < display_x11->motif_n_target_lists; i++) g_list_free (display_x11->motif_target_lists[i]); g_free (display_x11->motif_target_lists); } _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11)); /* Empty the event queue */ _gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11)); /* Atom Hashtable */ g_hash_table_destroy (display_x11->atom_from_virtual); g_hash_table_destroy (display_x11->atom_to_virtual); /* Leader Window */ XDestroyWindow (display_x11->xdisplay, display_x11->leader_window); /* List of event window extraction functions */ g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL); g_slist_free (display_x11->event_types); /* input GdkDevice list */ g_list_free_full (display_x11->input_devices, g_object_unref); /* input GdkWindow list */ g_list_free_full (display_x11->input_windows, g_free); /* Free all GdkScreens */ for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) g_object_unref (display_x11->screens[i]); g_free (display_x11->screens); g_free (display_x11->startup_notification_id); /* X ID hashtable */ g_hash_table_destroy (display_x11->xid_ht); XCloseDisplay (display_x11->xdisplay); /* error traps */ while (display_x11->error_traps != NULL) { GdkErrorTrap *trap = display_x11->error_traps->data; display_x11->error_traps = g_slist_delete_link (display_x11->error_traps, display_x11->error_traps); if (trap->end_sequence == 0) g_warning ("Display finalized with an unpopped error trap"); g_slice_free (GdkErrorTrap, trap); } G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object); } /** * gdk_x11_lookup_xdisplay: * @xdisplay: a pointer to an X Display * * Find the #GdkDisplay corresponding to @display, if any exists. * * Return value: (transfer none): the #GdkDisplay, if found, otherwise %NULL. * * Since: 2.2 **/ GdkDisplay * gdk_x11_lookup_xdisplay (Display *xdisplay) { GSList *list, *l; GdkDisplay *display; display = NULL; list = gdk_display_manager_list_displays (gdk_display_manager_get ()); for (l = list; l; l = l->next) { if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay) { display = l->data; break; } } g_slist_free (list); return display; } /** * _gdk_x11_display_screen_for_xrootwin: * @display: a #GdkDisplay * @xrootwin: window ID for one of of the screen's of the display. * * Given the root window ID of one of the screen's of a #GdkDisplay, * finds the screen. * * Return value: (transfer none): the #GdkScreen corresponding to * @xrootwin, or %NULL. **/ GdkScreen * _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display, Window xrootwin) { gint i; for (i = 0; i < ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); i++) { GdkScreen *screen = gdk_display_get_screen (display, i); if (GDK_SCREEN_XROOTWIN (screen) == xrootwin) return screen; } return NULL; } /** * gdk_x11_display_get_xdisplay: * @display: (type GdkX11Display): a #GdkDisplay * * Returns the X display of a #GdkDisplay. * * Returns: (transfer none): an X display * * Since: 2.2 */ Display * gdk_x11_display_get_xdisplay (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return GDK_X11_DISPLAY (display)->xdisplay; } void _gdk_x11_display_make_default (GdkDisplay *display) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); const gchar *startup_id; g_free (display_x11->startup_notification_id); display_x11->startup_notification_id = NULL; startup_id = g_getenv ("DESKTOP_STARTUP_ID"); if (startup_id && *startup_id != '\0') { if (!g_utf8_validate (startup_id, -1, NULL)) g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8"); else gdk_x11_display_set_startup_notification_id (display, startup_id); /* Clear the environment variable so it won't be inherited by * child processes and confuse things. */ g_unsetenv ("DESKTOP_STARTUP_ID"); } } static void broadcast_xmessage (GdkDisplay *display, const char *message_type, const char *message_type_begin, const char *message) { Display *xdisplay = GDK_DISPLAY_XDISPLAY (display); GdkScreen *screen = gdk_display_get_default_screen (display); GdkWindow *root_window = gdk_screen_get_root_window (screen); Window xroot_window = GDK_WINDOW_XID (root_window); Atom type_atom; Atom type_atom_begin; Window xwindow; if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client)) return; { XSetWindowAttributes attrs; attrs.override_redirect = True; attrs.event_mask = PropertyChangeMask | StructureNotifyMask; xwindow = XCreateWindow (xdisplay, xroot_window, -100, -100, 1, 1, 0, CopyFromParent, CopyFromParent, (Visual *)CopyFromParent, CWOverrideRedirect | CWEventMask, &attrs); } type_atom = gdk_x11_get_xatom_by_name_for_display (display, message_type); type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display, message_type_begin); { XClientMessageEvent xclient; const char *src; const char *src_end; char *dest; char *dest_end; memset(&xclient, 0, sizeof (xclient)); xclient.type = ClientMessage; xclient.message_type = type_atom_begin; xclient.display =xdisplay; xclient.window = xwindow; xclient.format = 8; src = message; src_end = message + strlen (message) + 1; /* +1 to include nul byte */ while (src != src_end) { dest = &xclient.data.b[0]; dest_end = dest + 20; while (dest != dest_end && src != src_end) { *dest = *src; ++dest; ++src; } while (dest != dest_end) { *dest = 0; ++dest; } XSendEvent (xdisplay, xroot_window, False, PropertyChangeMask, (XEvent *)&xclient); xclient.message_type = type_atom; } } XDestroyWindow (xdisplay, xwindow); XFlush (xdisplay); } /** * gdk_x11_display_broadcast_startup_message: * @display: (type GdkX11Display): a #GdkDisplay * @message_type: startup notification message type ("new", "change", * or "remove") * @...: a list of key/value pairs (as strings), terminated by a * %NULL key. (A %NULL value for a key will cause that key to be * skipped in the output.) * * Sends a startup notification message of type @message_type to * @display. * * This is a convenience function for use by code that implements the * freedesktop startup notification specification. Applications should * not normally need to call it directly. See the Startup * Notification Protocol specification for * definitions of the message types and keys that can be used. * * Since: 2.12 **/ void gdk_x11_display_broadcast_startup_message (GdkDisplay *display, const char *message_type, ...) { GString *message; va_list ap; const char *key, *value, *p; message = g_string_new (message_type); g_string_append_c (message, ':'); va_start (ap, message_type); while ((key = va_arg (ap, const char *))) { value = va_arg (ap, const char *); if (!value) continue; g_string_append_printf (message, " %s=\"", key); for (p = value; *p; p++) { switch (*p) { case ' ': case '"': case '\\': g_string_append_c (message, '\\'); break; } g_string_append_c (message, *p); } g_string_append_c (message, '\"'); } va_end (ap); broadcast_xmessage (display, "_NET_STARTUP_INFO", "_NET_STARTUP_INFO_BEGIN", message->str); g_string_free (message, TRUE); } static void gdk_x11_display_notify_startup_complete (GdkDisplay *display, const gchar *startup_id) { if (startup_id == NULL) { startup_id = GDK_X11_DISPLAY (display)->startup_notification_id; if (startup_id == NULL) return; } gdk_x11_display_broadcast_startup_message (display, "remove", "ID", startup_id, NULL); } static gboolean gdk_x11_display_supports_selection_notification (GdkDisplay *display) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); return display_x11->have_xfixes; } static gboolean gdk_x11_display_request_selection_notification (GdkDisplay *display, GdkAtom selection) { #ifdef HAVE_XFIXES GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); Atom atom; if (display_x11->have_xfixes) { atom = gdk_x11_atom_to_xatom_for_display (display, selection); XFixesSelectSelectionInput (display_x11->xdisplay, display_x11->leader_window, atom, XFixesSetSelectionOwnerNotifyMask | XFixesSelectionWindowDestroyNotifyMask | XFixesSelectionClientCloseNotifyMask); return TRUE; } else #endif return FALSE; } static gboolean gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display) { Atom clipboard_manager; /* It might make sense to cache this */ clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER"); return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None; } static void gdk_x11_display_store_clipboard (GdkDisplay *display, GdkWindow *clipboard_window, guint32 time_, const GdkAtom *targets, gint n_targets) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); Atom clipboard_manager, save_targets; g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window)); clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER"); save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS"); gdk_x11_display_error_trap_push (display); if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None) { Atom property_name = None; Atom *xatoms; int i; if (n_targets > 0) { property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION"); xatoms = g_new (Atom, n_targets); for (i = 0; i < n_targets; i++) xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]); XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window), property_name, XA_ATOM, 32, PropModeReplace, (guchar *)xatoms, n_targets); g_free (xatoms); } XConvertSelection (display_x11->xdisplay, clipboard_manager, save_targets, property_name, GDK_WINDOW_XID (clipboard_window), time_); } gdk_x11_display_error_trap_pop_ignored (display); } /** * gdk_x11_display_get_user_time: * @display: (type GdkX11Display): a #GdkDisplay * * Returns the timestamp of the last user interaction on * @display. The timestamp is taken from events caused * by user interaction such as key presses or pointer * movements. See gdk_x11_window_set_user_time(). * * Returns: the timestamp of the last user interaction * * Since: 2.8 */ guint32 gdk_x11_display_get_user_time (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->user_time; } static gboolean gdk_x11_display_supports_shapes (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->have_shapes; } static gboolean gdk_x11_display_supports_input_shapes (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->have_input_shapes; } /** * gdk_x11_display_get_startup_notification_id: * @display: (type GdkX11Display): a #GdkDisplay * * Gets the startup notification ID for a display. * * Returns: the startup notification ID for @display * * Since: 2.12 */ const gchar * gdk_x11_display_get_startup_notification_id (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->startup_notification_id; } /** * gdk_x11_display_set_startup_notification_id: * @display: (type GdkX11Display): a #GdkDisplay * @startup_id: the startup notification ID (must be valid utf8) * * Sets the startup notification ID for a display. * * This is usually taken from the value of the DESKTOP_STARTUP_ID * environment variable, but in some cases (such as the application not * being launched using exec()) it can come from other sources. * * If the ID contains the string "_TIME" then the portion following that * string is taken to be the X11 timestamp of the event that triggered * the application to be launched and the GDK current event time is set * accordingly. * * The startup ID is also what is used to signal that the startup is * complete (for example, when opening a window or when calling * gdk_notify_startup_complete()). * * Since: 3.0 **/ void gdk_x11_display_set_startup_notification_id (GdkDisplay *display, const gchar *startup_id) { GdkX11Display *display_x11; gchar *time_str; display_x11 = GDK_X11_DISPLAY (display); g_free (display_x11->startup_notification_id); display_x11->startup_notification_id = g_strdup (startup_id); /* Find the launch time from the startup_id, if it's there. Newer spec * states that the startup_id is of the form _TIME */ time_str = g_strrstr (startup_id, "_TIME"); if (time_str != NULL) { gulong retval; gchar *end; errno = 0; /* Skip past the "_TIME" part */ time_str += 5; retval = strtoul (time_str, &end, 0); if (end != time_str && errno == 0) display_x11->user_time = retval; } /* Set the startup id on the leader window so it * applies to all windows we create on this display */ XChangeProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"), gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8, PropModeReplace, (guchar *)startup_id, strlen (startup_id)); } static gboolean gdk_x11_display_supports_composite (GdkDisplay *display) { GdkX11Display *x11_display = GDK_X11_DISPLAY (display); return x11_display->have_xcomposite && x11_display->have_xdamage && x11_display->have_xfixes; } static GList * gdk_x11_display_list_devices (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return GDK_X11_DISPLAY (display)->input_devices; } /** * gdk_x11_register_standard_event_type: * @display: a #GdkDisplay * @event_base: first event type code to register * @n_events: number of event type codes to register * * Registers interest in receiving extension events with type codes * between @event_base and event_base + n_events - 1. * The registered events must have the window field in the same place * as core X events (this is not the case for e.g. XKB extension events). * * If an event type is registered, events of this type will go through * global and window-specific filters (see gdk_window_add_filter()). * Unregistered events will only go through global filters. * GDK may register the events of some X extensions on its own. * * This function should only be needed in unusual circumstances, e.g. * when filtering XInput extension events on the root window. * * Since: 2.4 **/ void gdk_x11_register_standard_event_type (GdkDisplay *display, gint event_base, gint n_events) { GdkEventTypeX11 *event_type; GdkX11Display *display_x11; display_x11 = GDK_X11_DISPLAY (display); event_type = g_new (GdkEventTypeX11, 1); event_type->base = event_base; event_type->n_events = n_events; display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type); } /* compare X sequence numbers handling wraparound */ #define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0) /* delivers an error event from the error handler in gdkmain-x11.c */ void _gdk_x11_display_error_event (GdkDisplay *display, XErrorEvent *error) { GdkX11Display *display_x11; GSList *tmp_list; gboolean ignore; display_x11 = GDK_X11_DISPLAY (display); ignore = FALSE; for (tmp_list = display_x11->error_traps; tmp_list != NULL; tmp_list = tmp_list->next) { GdkErrorTrap *trap; trap = tmp_list->data; if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) && (trap->end_sequence == 0 || SEQUENCE_COMPARE (trap->end_sequence, >, error->serial))) { ignore = TRUE; trap->error_code = error->error_code; break; /* only innermost trap gets the error code */ } } if (!ignore) { gchar buf[64]; gchar *msg; XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63); msg = g_strdup_printf ("The program '%s' received an X Window System error.\n" "This probably reflects a bug in the program.\n" "The error was '%s'.\n" " (Details: serial %ld error_code %d request_code %d minor_code %d)\n" " (Note to programmers: normally, X errors are reported asynchronously;\n" " that is, you will receive the error a while after causing it.\n" " To debug your program, run it with the GDK_SYNCHRONIZE environment\n" " variable to change this behavior. You can then get a meaningful\n" " backtrace from your debugger if you break on the gdk_x_error() function.)", g_get_prgname (), buf, error->serial, error->error_code, error->request_code, error->minor_code); #ifdef G_ENABLE_DEBUG g_error ("%s", msg); #else /* !G_ENABLE_DEBUG */ g_warning ("%s\n", msg); _exit (1); #endif /* G_ENABLE_DEBUG */ } } static void delete_outdated_error_traps (GdkX11Display *display_x11) { GSList *tmp_list; gulong processed_sequence; processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay); tmp_list = display_x11->error_traps; while (tmp_list != NULL) { GdkErrorTrap *trap = tmp_list->data; if (trap->end_sequence != 0 && SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence)) { GSList *free_me = tmp_list; tmp_list = tmp_list->next; display_x11->error_traps = g_slist_delete_link (display_x11->error_traps, free_me); g_slice_free (GdkErrorTrap, trap); } else { tmp_list = tmp_list->next; } } } /** * gdk_x11_display_error_trap_push: * @display: (type GdkX11Display): a #GdkDisplay * * Begins a range of X requests on @display for which X error events * will be ignored. Unignored errors (when no trap is pushed) will abort * the application. Use gdk_x11_display_error_trap_pop() or * gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed * with this function. * * See also gdk_error_trap_push() to push a trap on all displays. * * Since: 3.0 */ void gdk_x11_display_error_trap_push (GdkDisplay *display) { GdkX11Display *display_x11; GdkErrorTrap *trap; display_x11 = GDK_X11_DISPLAY (display); delete_outdated_error_traps (display_x11); /* set up the Xlib callback to tell us about errors */ _gdk_x11_error_handler_push (); trap = g_slice_new0 (GdkErrorTrap); trap->start_sequence = XNextRequest (display_x11->xdisplay); trap->error_code = Success; display_x11->error_traps = g_slist_prepend (display_x11->error_traps, trap); } static gint gdk_x11_display_error_trap_pop_internal (GdkDisplay *display, gboolean need_code) { GdkX11Display *display_x11; GdkErrorTrap *trap; GSList *tmp_list; int result; display_x11 = GDK_X11_DISPLAY (display); g_return_val_if_fail (display_x11->error_traps != NULL, Success); /* Find the first trap that hasn't been popped already */ trap = NULL; /* quiet gcc */ for (tmp_list = display_x11->error_traps; tmp_list != NULL; tmp_list = tmp_list->next) { trap = tmp_list->data; if (trap->end_sequence == 0) break; } g_return_val_if_fail (trap != NULL, Success); g_assert (trap->end_sequence == 0); /* May need to sync to fill in trap->error_code if we care about * getting an error code. */ if (need_code) { gulong processed_sequence; gulong next_sequence; next_sequence = XNextRequest (display_x11->xdisplay); processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay); /* If our last request was already processed, there is no point * in syncing. i.e. if last request was a round trip (or even if * we got an event with the serial of a non-round-trip) */ if ((next_sequence - 1) != processed_sequence) { XSync (display_x11->xdisplay, False); } result = trap->error_code; } else { result = Success; } /* record end of trap, giving us a range of * error sequences we'll ignore. */ trap->end_sequence = XNextRequest (display_x11->xdisplay); /* remove the Xlib callback */ _gdk_x11_error_handler_pop (); /* we may already be outdated */ delete_outdated_error_traps (display_x11); return result; } /** * gdk_x11_display_error_trap_pop: * @display: (type GdkX11Display): the display * * Pops the error trap pushed by gdk_x11_display_error_trap_push(). * Will XSync() if necessary and will always block until * the error is known to have occurred or not occurred, * so the error code can be returned. * * If you don't need to use the return value, * gdk_x11_display_error_trap_pop_ignored() would be more efficient. * * See gdk_error_trap_pop() for the all-displays-at-once * equivalent. * * Since: 3.0 * * Return value: X error code or 0 on success */ gint gdk_x11_display_error_trap_pop (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success); return gdk_x11_display_error_trap_pop_internal (display, TRUE); } /** * gdk_x11_display_error_trap_pop_ignored: * @display: (type GdkX11Display): the display * * Pops the error trap pushed by gdk_x11_display_error_trap_push(). * Does not block to see if an error occurred; merely records the * range of requests to ignore errors for, and ignores those errors * if they arrive asynchronously. * * See gdk_error_trap_pop_ignored() for the all-displays-at-once * equivalent. * * Since: 3.0 */ void gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display) { g_return_if_fail (GDK_IS_X11_DISPLAY (display)); gdk_x11_display_error_trap_pop_internal (display, FALSE); } /** * gdk_x11_set_sm_client_id: * @sm_client_id: the client id assigned by the session manager when the * connection was opened, or %NULL to remove the property. * * Sets the SM_CLIENT_ID property on the application's leader window so that * the window manager can save the application's state using the X11R6 ICCCM * session management protocol. * * See the X Session Management Library documentation for more information on * session management and the Inter-Client Communication Conventions Manual * * Since: 2.24 */ void gdk_x11_set_sm_client_id (const gchar *sm_client_id) { GSList *displays, *l; g_free (gdk_sm_client_id); gdk_sm_client_id = g_strdup (sm_client_id); displays = gdk_display_manager_list_displays (gdk_display_manager_get ()); for (l = displays; l; l = l->next) set_sm_client_id (l->data, sm_client_id); g_slist_free (displays); } static void gdk_x11_display_event_data_copy (GdkDisplay *display, const GdkEvent *src, GdkEvent *dst) { } static void gdk_x11_display_event_data_free (GdkDisplay *display, GdkEvent *event) { } static gint pop_error_trap (GdkDisplay *display, gboolean ignored) { if (ignored) { gdk_x11_display_error_trap_pop_ignored (display); return Success; } else { return gdk_x11_display_error_trap_pop (display); } } static GdkKeymap * gdk_x11_display_get_keymap (GdkDisplay *display) { GdkX11Display *display_x11; g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); display_x11 = GDK_X11_DISPLAY (display); if (!display_x11->keymap) display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL); display_x11->keymap->display = display; return display_x11->keymap; } static void gdk_x11_display_class_init (GdkX11DisplayClass * class) { GObjectClass *object_class = G_OBJECT_CLASS (class); GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class); object_class->dispose = gdk_x11_display_dispose; object_class->finalize = gdk_x11_display_finalize; display_class->window_type = GDK_TYPE_X11_WINDOW; display_class->get_name = gdk_x11_display_get_name; display_class->get_n_screens = gdk_x11_display_get_n_screens; display_class->get_screen = gdk_x11_display_get_screen; display_class->get_default_screen = gdk_x11_display_get_default_screen; display_class->beep = gdk_x11_display_beep; display_class->sync = gdk_x11_display_sync; display_class->flush = gdk_x11_display_flush; display_class->has_pending = gdk_x11_display_has_pending; display_class->queue_events = _gdk_x11_display_queue_events; display_class->get_default_group = gdk_x11_display_get_default_group; display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification; display_class->request_selection_notification = gdk_x11_display_request_selection_notification; display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence; display_class->store_clipboard = gdk_x11_display_store_clipboard; display_class->supports_shapes = gdk_x11_display_supports_shapes; display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes; display_class->supports_composite = gdk_x11_display_supports_composite; display_class->list_devices = gdk_x11_display_list_devices; display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context; display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type; display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name; display_class->get_cursor_for_pixbuf = _gdk_x11_display_get_cursor_for_pixbuf; display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size; display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size; display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha; display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color; display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates; display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates; display_class->get_next_serial = gdk_x11_display_get_next_serial; display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete; display_class->event_data_copy = gdk_x11_display_event_data_copy; display_class->event_data_free = gdk_x11_display_event_data_free; display_class->create_window_impl = _gdk_x11_display_create_window_impl; display_class->get_keymap = gdk_x11_display_get_keymap; display_class->push_error_trap = gdk_x11_display_error_trap_push; display_class->pop_error_trap = pop_error_trap; display_class->get_selection_owner = _gdk_x11_display_get_selection_owner; display_class->set_selection_owner = _gdk_x11_display_set_selection_owner; display_class->send_selection_notify = _gdk_x11_display_send_selection_notify; display_class->get_selection_property = _gdk_x11_display_get_selection_property; display_class->convert_selection = _gdk_x11_display_convert_selection; display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list; display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target; }