/* 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" #define VK_USE_PLATFORM_XLIB_KHR #include "gdkdisplay-x11.h" #include "gdkdisplayprivate.h" #include "gdkasync.h" #include "gdkdisplay.h" #include "gdkeventsource.h" #include "gdkeventtranslator.h" #include "gdkframeclockprivate.h" #include "gdkinternals.h" #include "gdkdeviceprivate.h" #include "gdksurfaceprivate.h" #include "gdkkeysprivate.h" #include "gdkmarshalers.h" #include "xsettings-client.h" #include "gdkclipboard-x11.h" #include "gdkprivate-x11.h" #include "gdkscreen-x11.h" #include "gdkcairocontext-x11.h" #include "gdkglcontext-x11.h" #include "gdkvulkancontext-x11.h" #include "gdk-private.h" #include #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 enum { XEVENT, LAST_SIGNAL }; 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 GdkEvent * gdk_x11_display_translate_event (GdkEventTranslator *translator, GdkDisplay *display, const 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_HIDDEN", "_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_COMBO", "_NET_WM_WINDOW_TYPE_DIALOG", "_NET_WM_WINDOW_TYPE_DND", "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", "_NET_WM_WINDOW_TYPE_MENU", "_NET_WM_WINDOW_TYPE_NORMAL", "_NET_WM_WINDOW_TYPE_POPUP_MENU", "_NET_WM_WINDOW_TYPE_TOOLTIP", "_NET_WM_WINDOW_TYPE_UTILITY", "_NET_WM_USER_TIME", "_NET_WM_USER_TIME_WINDOW", "_NET_VIRTUAL_ROOTS", "GDK_SELECTION", "_NET_WM_STATE_FOCUSED", "GDK_VISUALS" }; static char *gdk_sm_client_id; static guint signals[LAST_SIGNAL] = { 0 }; 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) { display->monitors = g_ptr_array_new_with_free_func (g_object_unref); } static void gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface) { iface->translate_event = gdk_x11_display_translate_event; } #define ANY_EDGE_TILED (GDK_SURFACE_STATE_LEFT_TILED | \ GDK_SURFACE_STATE_RIGHT_TILED | \ GDK_SURFACE_STATE_TOP_TILED | \ GDK_SURFACE_STATE_BOTTOM_TILED) static void do_edge_constraint_state_check (GdkSurface *surface, GdkSurfaceState old_state, GdkSurfaceState *set, GdkSurfaceState *unset) { GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface); GdkSurfaceState local_set, local_unset; guint edge_constraints; local_set = *set; local_unset = *unset; edge_constraints = toplevel->edge_constraints; /* If the WM doesn't support _GTK_EDGE_CONSTRAINTS, rely on the fallback * implementation. If it supports _GTK_EDGE_CONSTRAINTS, arrange for * GDK_SURFACE_STATE_TILED to be set if any edge is tiled, and cleared * if no edge is tiled. */ if (!gdk_surface_supports_edge_constraints (surface)) { /* FIXME: we rely on implementation details of mutter here: * mutter only tiles horizontally, and sets maxvert when it does * and if it tiles, it always affects all edges */ if (old_state & GDK_SURFACE_STATE_TILED) { if (!toplevel->have_maxvert) local_unset |= GDK_SURFACE_STATE_TILED; } else { if (toplevel->have_maxvert && !toplevel->have_maxhorz) local_set |= GDK_SURFACE_STATE_TILED; } } else { if (old_state & GDK_SURFACE_STATE_TILED) { if (!(edge_constraints & ANY_EDGE_TILED)) local_unset |= GDK_SURFACE_STATE_TILED; } else { if (edge_constraints & ANY_EDGE_TILED) local_set |= GDK_SURFACE_STATE_TILED; } } /* Top edge */ if (old_state & GDK_SURFACE_STATE_TOP_TILED) { if ((edge_constraints & GDK_SURFACE_STATE_TOP_TILED) == 0) local_unset |= GDK_SURFACE_STATE_TOP_TILED; } else { if (edge_constraints & GDK_SURFACE_STATE_TOP_TILED) local_set |= GDK_SURFACE_STATE_TOP_TILED; } if (old_state & GDK_SURFACE_STATE_TOP_RESIZABLE) { if ((edge_constraints & GDK_SURFACE_STATE_TOP_RESIZABLE) == 0) local_unset |= GDK_SURFACE_STATE_TOP_RESIZABLE; } else { if (edge_constraints & GDK_SURFACE_STATE_TOP_RESIZABLE) local_set |= GDK_SURFACE_STATE_TOP_RESIZABLE; } /* Right edge */ if (old_state & GDK_SURFACE_STATE_RIGHT_TILED) { if ((edge_constraints & GDK_SURFACE_STATE_RIGHT_TILED) == 0) local_unset |= GDK_SURFACE_STATE_RIGHT_TILED; } else { if (edge_constraints & GDK_SURFACE_STATE_RIGHT_TILED) local_set |= GDK_SURFACE_STATE_RIGHT_TILED; } if (old_state & GDK_SURFACE_STATE_RIGHT_RESIZABLE) { if ((edge_constraints & GDK_SURFACE_STATE_RIGHT_RESIZABLE) == 0) local_unset |= GDK_SURFACE_STATE_RIGHT_RESIZABLE; } else { if (edge_constraints & GDK_SURFACE_STATE_RIGHT_RESIZABLE) local_set |= GDK_SURFACE_STATE_RIGHT_RESIZABLE; } /* Bottom edge */ if (old_state & GDK_SURFACE_STATE_BOTTOM_TILED) { if ((edge_constraints & GDK_SURFACE_STATE_BOTTOM_TILED) == 0) local_unset |= GDK_SURFACE_STATE_BOTTOM_TILED; } else { if (edge_constraints & GDK_SURFACE_STATE_BOTTOM_TILED) local_set |= GDK_SURFACE_STATE_BOTTOM_TILED; } if (old_state & GDK_SURFACE_STATE_BOTTOM_RESIZABLE) { if ((edge_constraints & GDK_SURFACE_STATE_BOTTOM_RESIZABLE) == 0) local_unset |= GDK_SURFACE_STATE_BOTTOM_RESIZABLE; } else { if (edge_constraints & GDK_SURFACE_STATE_BOTTOM_RESIZABLE) local_set |= GDK_SURFACE_STATE_BOTTOM_RESIZABLE; } /* Left edge */ if (old_state & GDK_SURFACE_STATE_LEFT_TILED) { if ((edge_constraints & GDK_SURFACE_STATE_LEFT_TILED) == 0) local_unset |= GDK_SURFACE_STATE_LEFT_TILED; } else { if (edge_constraints & GDK_SURFACE_STATE_LEFT_TILED) local_set |= GDK_SURFACE_STATE_LEFT_TILED; } if (old_state & GDK_SURFACE_STATE_LEFT_RESIZABLE) { if ((edge_constraints & GDK_SURFACE_STATE_LEFT_RESIZABLE) == 0) local_unset |= GDK_SURFACE_STATE_LEFT_RESIZABLE; } else { if (edge_constraints & GDK_SURFACE_STATE_LEFT_RESIZABLE) local_set |= GDK_SURFACE_STATE_LEFT_RESIZABLE; } *set = local_set; *unset = local_unset; } static void do_net_wm_state_changes (GdkSurface *surface) { GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface); GdkSurfaceState old_state, set, unset; if (GDK_SURFACE_DESTROYED (surface) || gdk_surface_get_surface_type (surface) != GDK_SURFACE_TOPLEVEL) return; old_state = gdk_surface_get_state (surface); set = unset = 0; /* For found_sticky to remain TRUE, we have to also be on desktop * 0xFFFFFFFF */ if (old_state & GDK_SURFACE_STATE_STICKY) { if (!(toplevel->have_sticky && toplevel->on_all_desktops)) unset |= GDK_SURFACE_STATE_STICKY; } else { if (toplevel->have_sticky && toplevel->on_all_desktops) set |= GDK_SURFACE_STATE_STICKY; } if (old_state & GDK_SURFACE_STATE_FULLSCREEN) { if (!toplevel->have_fullscreen) unset |= GDK_SURFACE_STATE_FULLSCREEN; } else { if (toplevel->have_fullscreen) set |= GDK_SURFACE_STATE_FULLSCREEN; } /* Our "maximized" means both vertical and horizontal; if only one, * we don't expose that via GDK */ if (old_state & GDK_SURFACE_STATE_MAXIMIZED) { if (!(toplevel->have_maxvert && toplevel->have_maxhorz)) unset |= GDK_SURFACE_STATE_MAXIMIZED; } else { if (toplevel->have_maxvert && toplevel->have_maxhorz) set |= GDK_SURFACE_STATE_MAXIMIZED; } if (old_state & GDK_SURFACE_STATE_FOCUSED) { if (!toplevel->have_focused) unset |= GDK_SURFACE_STATE_FOCUSED; } else { if (toplevel->have_focused) set |= GDK_SURFACE_STATE_FOCUSED; } if (old_state & GDK_SURFACE_STATE_MINIMIZED) { if (!toplevel->have_hidden) unset |= GDK_SURFACE_STATE_MINIMIZED; } else { if (toplevel->have_hidden) set |= GDK_SURFACE_STATE_MINIMIZED; } /* Update edge constraints and tiling */ do_edge_constraint_state_check (surface, old_state, &set, &unset); gdk_synthesize_surface_state (surface, unset, set); } static void gdk_check_wm_desktop_changed (GdkSurface *surface) { GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface); GdkDisplay *display = GDK_SURFACE_DISPLAY (surface); 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_SURFACE_XID (surface), 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 (surface); } static void gdk_check_wm_state_changed (GdkSurface *surface) { GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface); GdkDisplay *display = GDK_SURFACE_DISPLAY (surface); GdkX11Screen *screen = GDK_SURFACE_SCREEN (surface); 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_SURFACE_XID (surface), 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, g_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 (surface); else do_net_wm_state_changes (surface); } static void gdk_check_edge_constraints_changed (GdkSurface *surface) { GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface); GdkDisplay *display = GDK_SURFACE_DISPLAY (surface); Atom type; gint format; gulong nitems; gulong bytes_after; guchar *data; gulong *constraints; type = None; gdk_x11_display_error_trap_push (display); XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_SURFACE_XID (surface), gdk_x11_get_xatom_by_name_for_display (display, "_GTK_EDGE_CONSTRAINTS"), 0, G_MAXLONG, False, XA_CARDINAL, &type, &format, &nitems, &bytes_after, &data); gdk_x11_display_error_trap_pop_ignored (display); if (type != None) { constraints = (gulong *)data; /* The GDK enum for these states does not begin at zero so, to avoid * messing around with shifts, just make the passed value and GDK's * enum values match by shifting to the first tiled state. */ toplevel->edge_constraints = constraints[0] << 9; XFree (constraints); } else { toplevel->edge_constraints = 0; } do_net_wm_state_changes (surface); } static Atom get_cm_atom (GdkDisplay *display) { return _gdk_x11_get_xatom_for_display_printf (display, "_NET_WM_CM_S%d", DefaultScreen (GDK_DISPLAY_XDISPLAY (display))); } static Window get_event_xwindow (const XEvent *xevent) { Window xwindow; 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; case ReparentNotify: xwindow = xevent->xreparent.window; break; case GravityNotify: xwindow = xevent->xgravity.window; break; case CirculateNotify: xwindow = xevent->xcirculate.window; break; default: xwindow = xevent->xany.window; } return xwindow; } static GdkEvent * gdk_x11_display_translate_event (GdkEventTranslator *translator, GdkDisplay *display, const XEvent *xevent) { Window xwindow; GdkSurface *surface; gboolean is_substructure; GdkX11Surface *surface_impl = NULL; GdkX11Screen *x11_screen = NULL; GdkToplevelX11 *toplevel = NULL; GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); GdkEvent *event; event = NULL; /* Find the GdkSurface that this event relates to. If that's * not the same as the surface that the event was sent to, * we are getting an event from SubstructureNotifyMask. * We ignore such events for internal operation, but we * need to report them to the application because of * GDK_SUBSTRUCTURE_MASK (which should be removed at next * opportunity.) The most likely reason for getting these * events is when we are used in the Metacity or Mutter * window managers. */ xwindow = get_event_xwindow (xevent); is_substructure = xwindow != xevent->xany.window; surface = gdk_x11_surface_lookup_for_display (display, xwindow); if (surface) { /* We may receive events such as NoExpose/GraphicsExpose * and ShmCompletion for pixmaps */ if (!GDK_IS_SURFACE (surface)) return NULL; x11_screen = GDK_SURFACE_SCREEN (surface); toplevel = _gdk_x11_surface_get_toplevel (surface); surface_impl = GDK_X11_SURFACE (surface); g_object_ref (surface); } if (surface && GDK_SURFACE_DESTROYED (surface)) { if (xevent->type != DestroyNotify) goto done; } if (xevent->type == DestroyNotify && !is_substructure) { x11_screen = GDK_X11_DISPLAY (display)->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 (x11_screen); 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. */ switch (xevent->type) { case KeymapNotify: GDK_DISPLAY_NOTE (display, EVENTS, g_message ("keymap notify")); /* Not currently handled */ break; case Expose: GDK_DISPLAY_NOTE (display, 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 (surface == NULL) break; { GdkRectangle expose_rect; int x2, y2; expose_rect.x = xevent->xexpose.x / surface_impl->surface_scale; expose_rect.y = xevent->xexpose.y / surface_impl->surface_scale; x2 = (xevent->xexpose.x + xevent->xexpose.width + surface_impl->surface_scale -1) / surface_impl->surface_scale; expose_rect.width = x2 - expose_rect.x; y2 = (xevent->xexpose.y + xevent->xexpose.height + surface_impl->surface_scale -1) / surface_impl->surface_scale; expose_rect.height = y2 - expose_rect.y; gdk_surface_invalidate_rect (surface, &expose_rect); } break; case GraphicsExpose: { GdkRectangle expose_rect; int x2, y2; GDK_DISPLAY_NOTE (display, EVENTS, g_message ("graphics expose:\tdrawable: %ld", xevent->xgraphicsexpose.drawable)); if (surface == NULL) break; expose_rect.x = xevent->xgraphicsexpose.x / surface_impl->surface_scale; expose_rect.y = xevent->xgraphicsexpose.y / surface_impl->surface_scale; x2 = (xevent->xgraphicsexpose.x + xevent->xgraphicsexpose.width + surface_impl->surface_scale -1) / surface_impl->surface_scale; expose_rect.width = x2 - expose_rect.x; y2 = (xevent->xgraphicsexpose.y + xevent->xgraphicsexpose.height + surface_impl->surface_scale -1) / surface_impl->surface_scale; expose_rect.height = y2 - expose_rect.y; gdk_surface_invalidate_rect (surface, &expose_rect); } break; case VisibilityNotify: #ifdef G_ENABLE_DEBUG if (GDK_DISPLAY_DEBUG_CHECK (display, 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; default: break; } #endif /* G_ENABLE_DEBUG */ /* not handled */ break; case CreateNotify: GDK_DISPLAY_NOTE (display, 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_DISPLAY_NOTE (display, EVENTS, g_message ("destroy notify:\twindow: %ld", xevent->xdestroywindow.window)); if (!is_substructure) { event = gdk_event_delete_new (surface); if (surface && GDK_SURFACE_XID (surface) != x11_screen->xroot_window) gdk_surface_destroy_notify (surface); } break; case UnmapNotify: GDK_DISPLAY_NOTE (display, EVENTS, g_message ("unmap notify:\t\twindow: %ld", xevent->xmap.window)); if (surface && !is_substructure) { /* 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 (x11_screen && !gdk_x11_screen_supports_net_wm_hint (x11_screen, g_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 minimized bit off. */ if (GDK_SURFACE_IS_MAPPED (surface)) gdk_synthesize_surface_state (surface, 0, GDK_SURFACE_STATE_MINIMIZED); } if (surface_impl->toplevel && surface_impl->toplevel->frame_pending) { surface_impl->toplevel->frame_pending = FALSE; gdk_surface_thaw_updates (event->any.surface); } if (toplevel) gdk_surface_freeze_updates (surface); _gdk_x11_surface_grab_check_unmap (surface, xevent->xany.serial); if (GDK_PROFILER_IS_RUNNING) gdk_profiler_add_markf (g_get_monotonic_time (), 0, "unmapped window", "0x%lx", GDK_SURFACE_XID (surface)); } break; case MapNotify: GDK_DISPLAY_NOTE (display, EVENTS, g_message ("map notify:\t\twindow: %ld", xevent->xmap.window)); if (surface && !is_substructure) { /* Unset minimized if it was set */ if (surface->state & GDK_SURFACE_STATE_MINIMIZED) gdk_synthesize_surface_state (surface, GDK_SURFACE_STATE_MINIMIZED, 0); if (toplevel) gdk_surface_thaw_updates (surface); if (GDK_PROFILER_IS_RUNNING) { gdk_profiler_end_markf (surface_impl->map_time, "mapped window", "0x%lx", GDK_SURFACE_XID (surface)); surface_impl->map_time = 0; } } break; case ReparentNotify: GDK_DISPLAY_NOTE (display, 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 */ break; case ConfigureNotify: GDK_DISPLAY_NOTE (display, 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, !surface ? " (discarding)" : "")); if (_gdk_x11_display_is_root_window (display, xevent->xconfigure.window)) { _gdk_x11_screen_size_changed (x11_screen, xevent); } #ifdef HAVE_XSYNC if (!is_substructure && toplevel && display_x11->use_sync && toplevel->pending_counter_value != 0) { toplevel->configure_counter_value = toplevel->pending_counter_value; toplevel->configure_counter_value_is_extended = toplevel->pending_counter_value_is_extended; toplevel->pending_counter_value = 0; } #endif if (surface && xevent->xconfigure.event == xevent->xconfigure.window) { int x, y; event = gdk_event_configure_new (surface, (xevent->xconfigure.width + surface_impl->surface_scale - 1) / surface_impl->surface_scale, (xevent->xconfigure.height + surface_impl->surface_scale - 1) / surface_impl->surface_scale); if (!xevent->xconfigure.send_event && !xevent->xconfigure.override_redirect && !GDK_SURFACE_DESTROYED (surface)) { gint tx = 0; gint ty = 0; Window child_window = 0; x = y = 0; gdk_x11_display_error_trap_push (display); if (XTranslateCoordinates (GDK_SURFACE_XDISPLAY (surface), GDK_SURFACE_XID (surface), x11_screen->xroot_window, 0, 0, &tx, &ty, &child_window)) { x = tx / surface_impl->surface_scale; y = ty / surface_impl->surface_scale; } gdk_x11_display_error_trap_pop_ignored (display); } else { x = xevent->xconfigure.x / surface_impl->surface_scale; y = xevent->xconfigure.y / surface_impl->surface_scale; } if (!is_substructure) { int new_abs_x, new_abs_y; new_abs_x = x; new_abs_y = y; surface_impl->abs_x = new_abs_x; surface_impl->abs_y = new_abs_y; if (surface->parent) { GdkX11Surface *parent_impl = GDK_X11_SURFACE (surface->parent); surface->x = new_abs_x - parent_impl->abs_x; surface->y = new_abs_y - parent_impl->abs_y; } if (surface_impl->unscaled_width != xevent->xconfigure.width || surface_impl->unscaled_height != xevent->xconfigure.height) { surface_impl->unscaled_width = xevent->xconfigure.width; surface_impl->unscaled_height = xevent->xconfigure.height; surface->width = event->configure.width; surface->height = event->configure.height; _gdk_surface_update_size (surface); _gdk_x11_surface_update_size (surface_impl); } if (surface->resize_count >= 1) { surface->resize_count -= 1; if (surface->resize_count == 0) _gdk_x11_moveresize_configure_done (display, surface); } gdk_x11_surface_update_popups (surface); } } break; case PropertyNotify: GDK_DISPLAY_NOTE (display, 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 (surface == NULL) 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 (surface); if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP")) gdk_check_wm_desktop_changed (surface); if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_GTK_EDGE_CONSTRAINTS")) gdk_check_edge_constraints_changed (surface); } break; case ColormapNotify: GDK_DISPLAY_NOTE (display, EVENTS, g_message ("colormap notify:\twindow: %ld", xevent->xcolormap.window)); /* Not currently handled */ break; case ClientMessage: GDK_DISPLAY_NOTE (display, EVENTS, g_message ("client message:\twindow: %ld", xevent->xclient.window)); /* Not currently handled */ break; case MappingNotify: GDK_DISPLAY_NOTE (display, EVENTS, g_message ("mapping notify")); /* Let XLib know that there is a new keyboard mapping. */ XRefreshKeyboardMapping ((XMappingEvent *) xevent); _gdk_x11_keymap_keys_changed (display); break; default: #ifdef HAVE_RANDR if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify || xevent->type - display_x11->xrandr_event_base == RRNotify) { if (x11_screen) _gdk_x11_screen_size_changed (x11_screen, xevent); } 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); break; case XkbStateNotify: _gdk_x11_keymap_state_changed (display, xevent); break; default: break; } } #endif } done: if (surface) g_object_unref (surface); return event; } static GdkFrameTimings * find_frame_timings (GdkFrameClock *clock, guint64 serial) { gint64 start_frame, end_frame, i; start_frame = gdk_frame_clock_get_history_start (clock); end_frame = gdk_frame_clock_get_frame_counter (clock); for (i = end_frame; i >= start_frame; i--) { GdkFrameTimings *timings = gdk_frame_clock_get_timings (clock, i); if (timings->cookie == serial) return timings; } return NULL; } /* _NET_WM_FRAME_DRAWN and _NET_WM_FRAME_TIMINGS messages represent time * as a "high resolution server time" - this is the server time interpolated * to microsecond resolution. The advantage of this time representation * is that if X server is running on the same computer as a client, and * the Xserver uses 'clock_gettime(CLOCK_MONOTONIC, ...)' for the server * time, the client can detect this, and all such clients will share a * a time representation with high accuracy. If there is not a common * time source, then the time synchronization will be less accurate. */ static gint64 server_time_to_monotonic_time (GdkX11Display *display_x11, gint64 server_time) { if (display_x11->server_time_query_time == 0 || (!display_x11->server_time_is_monotonic_time && server_time > display_x11->server_time_query_time + 10*1000*1000)) /* 10 seconds */ { gint64 current_server_time = gdk_x11_get_server_time (display_x11->leader_gdk_surface); gint64 current_server_time_usec = (gint64)current_server_time * 1000; gint64 current_monotonic_time = g_get_monotonic_time (); display_x11->server_time_query_time = current_monotonic_time; /* If the server time is within a second of the monotonic time, * we assume that they are identical. This seems like a big margin, * but we want to be as robust as possible even if the system * is under load and our processing of the server response is * delayed. */ if (current_server_time_usec > current_monotonic_time - 1000*1000 && current_server_time_usec < current_monotonic_time + 1000*1000) display_x11->server_time_is_monotonic_time = TRUE; display_x11->server_time_offset = current_server_time_usec - current_monotonic_time; } if (display_x11->server_time_is_monotonic_time) return server_time; else return server_time - display_x11->server_time_offset; } GdkFilterReturn _gdk_wm_protocols_filter (const XEvent *xevent, GdkSurface *win, GdkEvent **event, gpointer data) { GdkDisplay *display; Atom atom; if (!GDK_IS_X11_SURFACE (win) || GDK_SURFACE_DESTROYED (win)) return GDK_FILTER_CONTINUE; if (xevent->type != ClientMessage) return GDK_FILTER_CONTINUE; display = GDK_SURFACE_DISPLAY (win); /* This isn't actually WM_PROTOCOLS because that wouldn't leave enough space * in the message for everything that gets stuffed in */ if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_DRAWN")) { GdkX11Surface *surface_impl; surface_impl = GDK_X11_SURFACE (win); if (surface_impl->toplevel) { guint32 d0 = xevent->xclient.data.l[0]; guint32 d1 = xevent->xclient.data.l[1]; guint32 d2 = xevent->xclient.data.l[2]; guint32 d3 = xevent->xclient.data.l[3]; guint64 serial = ((guint64)d1 << 32) | d0; gint64 frame_drawn_time = server_time_to_monotonic_time (GDK_X11_DISPLAY (display), ((guint64)d3 << 32) | d2); gint64 refresh_interval, presentation_time; GdkFrameClock *clock = gdk_surface_get_frame_clock (win); GdkFrameTimings *timings = find_frame_timings (clock, serial); if (timings) timings->drawn_time = frame_drawn_time; if (surface_impl->toplevel->frame_pending) { surface_impl->toplevel->frame_pending = FALSE; gdk_surface_thaw_updates (win); } gdk_frame_clock_get_refresh_info (clock, frame_drawn_time, &refresh_interval, &presentation_time); if (presentation_time != 0) surface_impl->toplevel->throttled_presentation_time = presentation_time + refresh_interval; } return GDK_FILTER_REMOVE; } if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_TIMINGS")) { GdkX11Surface *surface_impl; surface_impl = GDK_X11_SURFACE (win); if (surface_impl->toplevel) { guint32 d0 = xevent->xclient.data.l[0]; guint32 d1 = xevent->xclient.data.l[1]; guint32 d2 = xevent->xclient.data.l[2]; guint32 d3 = xevent->xclient.data.l[3]; guint64 serial = ((guint64)d1 << 32) | d0; GdkFrameClock *clock = gdk_surface_get_frame_clock (win); GdkFrameTimings *timings = find_frame_timings (clock, serial); if (timings) { gint32 presentation_time_offset = (gint32)d2; gint32 refresh_interval = d3; if (timings->drawn_time && presentation_time_offset) timings->presentation_time = timings->drawn_time + presentation_time_offset; if (refresh_interval) timings->refresh_interval = refresh_interval; timings->complete = TRUE; #ifdef G_ENABLE_DEBUG if (GDK_DISPLAY_DEBUG_CHECK (display, FRAMES)) _gdk_frame_clock_debug_print_timings (clock, timings); if (GDK_PROFILER_IS_RUNNING) _gdk_frame_clock_add_timings_to_profiler (clock, timings); #endif /* G_ENABLE_DEBUG */ } } } 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_DISPLAY_NOTE (display, EVENTS, g_message ("delete window:\t\twindow: %ld", xevent->xclient.window)); *event = gdk_event_delete_new (win); gdk_x11_surface_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_surface_get_toplevel (win); /* 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_SURFACE_XROOTWIN (win); XSendEvent (GDK_SURFACE_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_surface_get_toplevel (win); if (toplevel) { #ifdef HAVE_XSYNC toplevel->pending_counter_value = xevent->xclient.data.l[2] + ((gint64)xevent->xclient.data.l[3] << 32); toplevel->pending_counter_value_is_extended = xevent->xclient.data.l[4] != 0; #endif } return GDK_FILTER_REMOVE; } return GDK_FILTER_CONTINUE; } static void gdk_event_init (GdkDisplay *display) { GdkX11Display *display_x11; 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)); gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source, GDK_EVENT_TRANSLATOR (display_x11->device_manager)); } 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")); } void gdk_display_setup_window_visual (GdkDisplay *display, gint depth, Visual *visual, Colormap colormap, gboolean rgba) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); display_x11->window_depth = depth; display_x11->window_visual = visual; display_x11->window_colormap = colormap; gdk_display_set_rgba (display, rgba); } /** * gdk_x11_display_open: * @display_name: (allow-none): name of the X display. * See the XOpenDisplay() for details. * * Tries to open a new display to the X server given by * @display_name. If opening the display fails, %NULL is * returned. * * Returns: (nullable) (transfer full): The new display or * %NULL on error. **/ GdkDisplay * gdk_x11_display_open (const gchar *display_name) { Display *xdisplay; GdkDisplay *display; GdkX11Display *display_x11; gint argc; gchar *argv[1]; XClassHint *class_hint; gint ignore; gint maj, min; XInitThreads (); 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; display_x11->have_randr15 = 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; #ifdef HAVE_RANDR15 if (minor >= 5 || major > 1) display_x11->have_randr15 = TRUE; #endif } gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents); } #endif /* initialize the display's screens */ display_x11->screen = _gdk_x11_screen_new (display, DefaultScreen (display_x11->xdisplay), TRUE); /* We need to initialize events after we have the screen * structures in places */ _gdk_x11_xsettings_init (GDK_X11_SCREEN (display_x11->screen)); display_x11->device_manager = _gdk_x11_device_manager_new (display); gdk_event_init (display); { GdkRectangle rect = { -100, -100, 1, 1 }; display_x11->leader_gdk_surface = gdk_surface_new_temp (display, &rect); } (_gdk_x11_surface_get_toplevel (display_x11->leader_gdk_surface))->is_leader = TRUE; display_x11->leader_window = GDK_SURFACE_XID (display_x11->leader_gdk_surface); 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->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 = (char *) g_get_prgname (); class_hint->res_class = (char *) g_get_prgname (); /* XmbSetWMProperties sets the RESOURCE_NAME environment variable * from argv[0], so we just synthesize an argument array here. */ argc = 1; argv[0] = (char *) 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); if (!gdk_running_in_sandbox ()) { /* if sandboxed, we're likely in a pid namespace and would only confuse the wm with this */ long 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 display->clipboard = gdk_x11_clipboard_new (display, "CLIPBOARD"); display->primary_clipboard = gdk_x11_clipboard_new (display, "PRIMARY"); /* * It is important that we first request the selection * notification, and then setup the initial state of * is_composited to avoid a race condition here. */ gdk_x11_display_request_selection_notification (display, gdk_x11_xatom_to_atom_for_display (display, get_cm_atom (display))); gdk_display_set_composited (GDK_DISPLAY (display), XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), get_cm_atom (display)) != None); gdk_display_emit_opened (display); return display; } /** * gdk_x11_display_set_program_class: * @display: a #GdkDisplay * @program_class: a string * * Sets the program class. * * The X11 backend uses the program class to set the class name part * of the `WM_CLASS` property on toplevel windows; see the ICCCM. */ void gdk_x11_display_set_program_class (GdkDisplay *display, const char *program_class) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); XClassHint *class_hint; g_free (display_x11->program_class); display_x11->program_class = g_strdup (program_class); class_hint = XAllocClassHint(); class_hint->res_name = (char *) g_get_prgname (); class_hint->res_class = (char *) program_class; XSetClassHint (display_x11->xdisplay, display_x11->leader_window, class_hint); XFree (class_hint); } /* * 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; XProcessInternalConnection ((Display*)connection->display, connection->fd); 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); } gboolean _gdk_x11_display_is_root_window (GdkDisplay *display, Window xroot_window) { GdkX11Display *display_x11; display_x11 = GDK_X11_DISPLAY (display); return GDK_SCREEN_XROOTWIN (display_x11->screen) == xroot_window; } struct XPointerUngrabInfo { GdkDisplay *display; guint32 time; }; static void device_grab_update_callback (GdkDisplay *display, gpointer data, gulong serial) { GdkPointerSurfaceInfo *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 ? pointer_info->last_slave : device, 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 GdkSurface * 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_surface; } /** * 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. **/ 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(). **/ 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) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (object); 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); /* Keymap */ if (display_x11->keymap) g_object_unref (display_x11->keymap); _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11)); /* Get rid of pending streams */ g_slist_free_full (display_x11->streams, g_object_unref); /* 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_free_full (display_x11->event_types, g_free); /* input GdkSurface list */ g_list_free_full (display_x11->input_surfaces, g_free); /* Free all GdkX11Screens */ g_object_unref (display_x11->screen); g_list_free_full (display_x11->screens, g_object_unref); g_ptr_array_free (display_x11->monitors, TRUE); 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_free (display_x11->program_class); 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 @xdisplay, if any exists. * * Returns: (transfer none) (type GdkX11Display): the #GdkDisplay, if found, otherwise %NULL. **/ 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_IS_X11_DISPLAY (l->data) && 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. * * Returns: (transfer none): the #GdkX11Screen corresponding to * @xrootwin, or %NULL. **/ GdkX11Screen * _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display, Window xrootwin) { GdkX11Screen *screen; XWindowAttributes attrs; gboolean result; GdkX11Display *display_x11; GList *l; screen = GDK_X11_DISPLAY (display)->screen; if (GDK_SCREEN_XROOTWIN (screen) == xrootwin) return screen; display_x11 = GDK_X11_DISPLAY (display); for (l = display_x11->screens; l; l = l->next) { screen = l->data; if (GDK_SCREEN_XROOTWIN (screen) == xrootwin) return screen; } gdk_x11_display_error_trap_push (display); result = XGetWindowAttributes (display_x11->xdisplay, xrootwin, &attrs); if (gdk_x11_display_error_trap_pop (display) || !result) return NULL; screen = _gdk_x11_screen_new (display, XScreenNumberOfScreen (attrs.screen), FALSE); display_x11->screens = g_list_prepend (display_x11->screens, screen); return screen; } /** * gdk_x11_display_get_xdisplay: * @display: (type GdkX11Display): a #GdkDisplay * * Returns the X display of a #GdkDisplay. * * Returns: (transfer none): an X display */ Display * gdk_x11_display_get_xdisplay (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return GDK_X11_DISPLAY (display)->xdisplay; } /** * gdk_x11_display_get_xscreen: * @display: (type GdkX11Display): a #GdkDisplay * * Returns the X Screen used by #GdkDisplay. * * Returns: (transfer none): an X Screen */ Screen * gdk_x11_display_get_xscreen (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen)->xscreen; } /** * gdk_x11_display_get_xrootwindow: * @display: (type GdkX11Display): a #GdkDisplay * * Returns the root X window used by #GdkDisplay. * * Returns: an X Window */ Window gdk_x11_display_get_xrootwindow (GdkDisplay *display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), None); return GDK_SCREEN_XROOTWIN (GDK_X11_DISPLAY (display)->screen); } static 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 = gdk_get_startup_notification_id (); if (startup_id) gdk_x11_display_set_startup_notification_id (display, 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); Window xroot_window = GDK_DISPLAY_XROOTWIN (display); 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](http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt) * for definitions of the message types and keys that can be used. **/ 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; default: 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) { gchar *free_this = NULL; if (startup_id == NULL) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); startup_id = free_this = display_x11->startup_notification_id; display_x11->startup_notification_id = NULL; if (startup_id == NULL) return; } gdk_x11_display_broadcast_startup_message (display, "remove", "ID", startup_id, NULL); g_free (free_this); } gboolean gdk_x11_display_request_selection_notification (GdkDisplay *display, const char *selection) { #ifdef HAVE_XFIXES GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); Atom atom; if (display_x11->have_xfixes) { atom = gdk_x11_get_xatom_by_name_for_display (display, selection); XFixesSelectSelectionInput (display_x11->xdisplay, display_x11->leader_window, atom, XFixesSetSelectionOwnerNotifyMask | XFixesSelectionWindowDestroyNotifyMask | XFixesSelectionClientCloseNotifyMask); return TRUE; } else #endif return FALSE; } /** * 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_surface_set_user_time(). * * Returns: the timestamp of the last user interaction */ 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 */ 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()). **/ 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); if (startup_id != NULL) { /* 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; } else display_x11->user_time = 0; /* 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)); } else { XDeleteProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID")); display_x11->user_time = 0; } } /** * gdk_x11_register_standard_event_type: * @display: (type GdkX11Display): 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). * * 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. **/ 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); } /* look up the extension name for a given major opcode. grubs around in * xlib to do it since a) it’s already cached there b) XQueryExtension * emits protocol so we can’t use it in an error handler. */ static const char * _gdk_x11_decode_request_code(Display *dpy, int code) { _XExtension *ext; if (code < 128) return "core protocol"; for (ext = dpy->ext_procs; ext; ext = ext->next) { if (ext->codes.major_opcode == code) return ext->name; } return "unknown"; } /* 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 (%s) 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, _gdk_x11_decode_request_code(display_x11->xdisplay, error->request_code), error->minor_code); #ifdef G_ENABLE_DEBUG g_error ("%s", msg); #else /* !G_ENABLE_DEBUG */ g_warning ("%s", 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. */ 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_set_surface_scale: * @display: (type GdkX11Display): the display * @scale: The new scale value * * Forces a specific window scale for all windows on this display, * instead of using the default or user configured scale. This * is can be used to disable scaling support by setting @scale to * 1, or to programmatically set the window scale. * * Once the scale is set by this call it will not change in response * to later user configuration changes. */ void gdk_x11_display_set_surface_scale (GdkDisplay *display, gint scale) { GdkX11Screen *x11_screen; gboolean need_reread_settings = FALSE; g_return_if_fail (GDK_IS_X11_DISPLAY (display)); scale = MAX (scale, 1); x11_screen = GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen); if (!x11_screen->fixed_surface_scale) { x11_screen->fixed_surface_scale = TRUE; /* We treat screens with a window scale set differently when * reading xsettings, so we need to reread */ need_reread_settings = TRUE; } _gdk_x11_screen_set_surface_scale (x11_screen, scale); if (need_reread_settings) _gdk_x11_settings_force_reread (x11_screen); } /** * 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. * * Returns: 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. */ 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: (nullable): 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 */ 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) { if (GDK_IS_X11_DISPLAY (l->data)) set_sm_client_id (l->data, sm_client_id); } g_slist_free (displays); } gsize gdk_x11_display_get_max_request_size (GdkDisplay *display) { Display *xdisplay = GDK_DISPLAY_XDISPLAY (display); gsize size; size = XExtendedMaxRequestSize (xdisplay); if (size <= 0) size = XMaxRequestSize (xdisplay); size = MIN (262144, size - 100); return size; } /** * gdk_x11_display_get_screen: * @display: a #GdkX11Display * * Retrieves the #GdkX11Screen of the @display. * * Returns: (transfer none): the #GdkX11Screen */ GdkX11Screen * gdk_x11_display_get_screen (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->screen; } 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; /* beware of ref cycle */ } return display_x11->keymap; } static GdkSeat * gdk_x11_display_get_default_seat (GdkDisplay *display) { GList *seats, *l; int device_id; gboolean result = FALSE; seats = gdk_display_list_seats (display); gdk_x11_display_error_trap_push (display); result = XIGetClientPointer (GDK_DISPLAY_XDISPLAY (display), None, &device_id); gdk_x11_display_error_trap_pop_ignored (display); for (l = seats; l; l = l->next) { GdkDevice *pointer; pointer = gdk_seat_get_pointer (l->data); if (gdk_x11_device_get_id (pointer) == device_id || !result) { GdkSeat *seat = l->data; g_list_free (seats); return seat; } } g_list_free (seats); return NULL; } static int gdk_x11_display_get_n_monitors (GdkDisplay *display) { GdkX11Display *x11_display = GDK_X11_DISPLAY (display); return x11_display->monitors->len; } static GdkMonitor * gdk_x11_display_get_monitor (GdkDisplay *display, int monitor_num) { GdkX11Display *x11_display = GDK_X11_DISPLAY (display); if (0 <= monitor_num && monitor_num < x11_display->monitors->len) return (GdkMonitor *)x11_display->monitors->pdata[monitor_num]; return NULL; } /** * gdk_x11_display_get_primary_monitor: * @display: a #GdkDisplay * * Gets the primary monitor for the display. * * The primary monitor is considered the monitor where the “main desktop” * lives. While normal application surfaces typically allow the window * manager to place the surfaces, specialized desktop applications * such as panels should place themselves on the primary monitor. * * If no monitor is the designated primary monitor, any monitor * (usually the first) may be returned. * * Returns: (transfer none): the primary monitor, or any monitor if no * primary monitor is configured by the user */ GdkMonitor * gdk_x11_display_get_primary_monitor (GdkDisplay *display) { GdkX11Display *x11_display = GDK_X11_DISPLAY (display); if (0 <= x11_display->primary_monitor && x11_display->primary_monitor < x11_display->monitors->len) return x11_display->monitors->pdata[x11_display->primary_monitor]; return NULL; } int gdk_x11_display_get_window_depth (GdkX11Display *display) { return display->window_depth; } Visual * gdk_x11_display_get_window_visual (GdkX11Display *display) { return display->window_visual; } Colormap gdk_x11_display_get_window_colormap (GdkX11Display *display) { return display->window_colormap; } static gboolean gdk_x11_display_get_setting (GdkDisplay *display, const gchar *name, GValue *value) { return gdk_x11_screen_get_setting (GDK_X11_DISPLAY (display)->screen, name, value); } GList * gdk_x11_display_get_toplevel_windows (GdkDisplay *display) { return GDK_X11_DISPLAY (display)->toplevels; } static guint32 gdk_x11_display_get_last_seen_time (GdkDisplay *display) { return gdk_x11_get_server_time (GDK_X11_DISPLAY (display)->leader_gdk_surface); } static gboolean gdk_boolean_handled_accumulator (GSignalInvocationHint *ihint, GValue *return_accu, const GValue *handler_return, gpointer dummy) { gboolean continue_emission; gboolean signal_handled; signal_handled = g_value_get_boolean (handler_return); g_value_set_boolean (return_accu, signal_handled); continue_emission = !signal_handled; return continue_emission; } 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->cairo_context_type = GDK_TYPE_X11_CAIRO_CONTEXT; #ifdef GDK_RENDERING_VULKAN display_class->vk_context_type = GDK_TYPE_X11_VULKAN_CONTEXT; display_class->vk_extension_name = VK_KHR_XLIB_SURFACE_EXTENSION_NAME; #endif display_class->get_name = gdk_x11_display_get_name; display_class->beep = gdk_x11_display_beep; display_class->sync = gdk_x11_display_sync; display_class->flush = gdk_x11_display_flush; display_class->make_default = gdk_x11_display_make_default; 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_shapes = gdk_x11_display_supports_shapes; display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes; display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context; display_class->get_next_serial = gdk_x11_display_get_next_serial; display_class->get_startup_notification_id = gdk_x11_display_get_startup_notification_id; display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete; display_class->create_surface = _gdk_x11_display_create_surface; display_class->get_keymap = gdk_x11_display_get_keymap; 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; display_class->make_gl_context_current = gdk_x11_display_make_gl_context_current; display_class->get_default_seat = gdk_x11_display_get_default_seat; display_class->get_n_monitors = gdk_x11_display_get_n_monitors; display_class->get_monitor = gdk_x11_display_get_monitor; display_class->get_setting = gdk_x11_display_get_setting; display_class->get_last_seen_time = gdk_x11_display_get_last_seen_time; display_class->set_cursor_theme = gdk_x11_display_set_cursor_theme; class->xevent = gdk_event_source_xevent; /** * GdkX11Display::xevent: * @display: the object on which the signal is emitted * @xevent: a pointer to the XEvent to process * * The ::xevent signal is a low level signal that is emitted * whenever an XEvent has been received. * * When handlers to this signal return %TRUE, no other handlers will be * invoked. In particular, the default handler for this function is * GDK's own event handling mechanism, so by returning %TRUE for an event * that GDK expects to translate, you may break GDK and/or GTK+ in * interesting ways. You have been warned. * * If you want this signal handler to queue a #GdkEvent, you can use * gdk_display_put_event(). * * If you are interested in X GenericEvents, bear in mind that * XGetEventData() has been already called on the event, and * XFreeEventData() will be called afterwards. * * Returns: %TRUE to stop other handlers from being invoked for the event. * %FALSE to propagate the event further. */ signals[XEVENT] = g_signal_new (g_intern_static_string ("xevent"), G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdkX11DisplayClass, xevent), gdk_boolean_handled_accumulator, NULL, _gdk_marshal_BOOLEAN__POINTER, G_TYPE_BOOLEAN, 1, G_TYPE_POINTER); _gdk_x11_surfaceing_init (); }