/* GDK - The GIMP Drawing Kit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "gdk.h" #include "gdkprivate-x11.h" #include "gdkinternals.h" #include "gdkx.h" #include "gdkscreen-x11.h" #include "gdkdisplay-x11.h" #include "gdkkeysyms.h" #include "xsettings-client.h" #if HAVE_CONFIG_H # include # if STDC_HEADERS # include # endif #endif #include "gdkinputprivate.h" #ifdef HAVE_XKB #include #endif #include typedef struct _GdkIOClosure GdkIOClosure; typedef struct _GdkDisplaySource GdkDisplaySource; #define DOUBLE_CLICK_TIME 250 #define TRIPLE_CLICK_TIME 500 #define DOUBLE_CLICK_DIST 5 #define TRIPLE_CLICK_DIST 5 struct _GdkIOClosure { GdkInputFunction function; GdkInputCondition condition; GdkDestroyNotify notify; gpointer data; }; struct _GdkDisplaySource { GSource source; GdkDisplay *display; GPollFD event_poll_fd; }; /* * Private function declarations */ static gint gdk_event_apply_filters (XEvent *xevent, GdkEvent *event, GList *filters); static gboolean gdk_event_translate (GdkDisplay *display, GdkEvent *event, XEvent *xevent, gboolean return_exposes); static gboolean gdk_event_prepare (GSource *source, gint *timeout); static gboolean gdk_event_check (GSource *source); static gboolean gdk_event_dispatch (GSource *source, GSourceFunc callback, gpointer user_data); static GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev, GdkEvent *event, gpointer data); static GSource *gdk_display_source_new (GdkDisplay *display); static gboolean gdk_check_xpending (GdkDisplay *display); static void gdk_xsettings_watch_cb (Window window, Bool is_start, long mask, void *cb_data); static void gdk_xsettings_notify_cb (const char *name, XSettingsAction action, XSettingsSetting *setting, void *data); /* Private variable declarations */ static GList *display_sources; static GSourceFuncs event_funcs = { gdk_event_prepare, gdk_event_check, gdk_event_dispatch, NULL }; static GSource * gdk_display_source_new (GdkDisplay *display) { GSource *source = g_source_new (&event_funcs, sizeof (GdkDisplaySource)); GdkDisplaySource *display_source = (GdkDisplaySource *)source; display_source->display = display; return source; } static gboolean gdk_check_xpending (GdkDisplay *display) { return XPending (GDK_DISPLAY_XDISPLAY (display)); } /********************************************* * Functions for maintaining the event queue * *********************************************/ void _gdk_x11_events_init_screen (GdkScreen *screen) { GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen); /* Keep a flag to avoid extra notifies that we don't need */ screen_x11->xsettings_in_init = TRUE; screen_x11->xsettings_client = xsettings_client_new (screen_x11->xdisplay, screen_x11->screen_num, gdk_xsettings_notify_cb, gdk_xsettings_watch_cb, screen); screen_x11->xsettings_in_init = FALSE; } void _gdk_x11_events_uninit_screen (GdkScreen *screen) { GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen); xsettings_client_destroy (screen_x11->xsettings_client); screen_x11->xsettings_client = NULL; } void _gdk_events_init (GdkDisplay *display) { GSource *source; GdkDisplaySource *display_source; GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display); int connection_number = ConnectionNumber (display_x11->xdisplay); GDK_NOTE (MISC, g_message ("connection number: %d", connection_number)); source = display_x11->event_source = gdk_display_source_new (display); display_source = (GdkDisplaySource*) source; g_source_set_priority (source, GDK_PRIORITY_EVENTS); display_source->event_poll_fd.fd = connection_number; display_source->event_poll_fd.events = G_IO_IN; g_source_add_poll (source, &display_source->event_poll_fd); g_source_set_can_recurse (source, TRUE); g_source_attach (source, NULL); display_sources = g_list_prepend (display_sources,display_source); gdk_display_add_client_message_filter ( display, gdk_atom_intern ("WM_PROTOCOLS", FALSE), gdk_wm_protocols_filter, NULL); } /** * gdk_events_pending: * * Checks if any events are ready to be processed for any display. * * Return value: %TRUE if any events are pending. **/ gboolean gdk_events_pending (void) { GList *tmp_list; for (tmp_list = display_sources; tmp_list; tmp_list = tmp_list->next) { GdkDisplaySource *tmp_source = tmp_list->data; GdkDisplay *display = tmp_source->display; if (_gdk_event_queue_find_first (display)) return TRUE; } for (tmp_list = display_sources; tmp_list; tmp_list = tmp_list->next) { GdkDisplaySource *tmp_source = tmp_list->data; GdkDisplay *display = tmp_source->display; if (gdk_check_xpending (display)) return TRUE; } return FALSE; } static Bool graphics_expose_predicate (Display *display, XEvent *xevent, XPointer arg) { if (xevent->xany.window == GDK_DRAWABLE_XID ((GdkDrawable *)arg) && (xevent->xany.type == GraphicsExpose || xevent->xany.type == NoExpose)) return True; else return False; } /** * gdk_event_get_graphics_expose: * @window: the #GdkWindow to wait for the events for. * * Waits for a GraphicsExpose or NoExpose event from the X server. * This is used in the #GtkText and #GtkCList widgets in GTK+ to make sure any * GraphicsExpose events are handled before the widget is scrolled. * * Return value: a #GdkEventExpose if a GraphicsExpose was received, or %NULL if a * NoExpose event was received. **/ GdkEvent* gdk_event_get_graphics_expose (GdkWindow *window) { XEvent xevent; GdkEvent *event; g_return_val_if_fail (window != NULL, NULL); XIfEvent (GDK_WINDOW_XDISPLAY (window), &xevent, graphics_expose_predicate, (XPointer) window); if (xevent.xany.type == GraphicsExpose) { event = gdk_event_new (GDK_NOTHING); if (gdk_event_translate (GDK_WINDOW_DISPLAY (window), event, &xevent, TRUE)) return event; else gdk_event_free (event); } return NULL; } static gint gdk_event_apply_filters (XEvent *xevent, GdkEvent *event, GList *filters) { GList *tmp_list; GdkFilterReturn result; tmp_list = filters; while (tmp_list) { GdkEventFilter *filter = (GdkEventFilter*) tmp_list->data; tmp_list = tmp_list->next; result = filter->function (xevent, event, filter->data); if (result != GDK_FILTER_CONTINUE) return result; } return GDK_FILTER_CONTINUE; } /** * gdk_display_add_client_message_filter: * @display: a #GdkDisplay for which this message filter applies * @message_type: the type of ClientMessage events to receive. * This will be checked against the @message_type field * of the XClientMessage event struct. * @func: the function to call to process the event. * @data: user data to pass to @func. * * Adds a filter to be called when X ClientMessage events are received. * * Since: 2.2 **/ void gdk_display_add_client_message_filter (GdkDisplay *display, GdkAtom message_type, GdkFilterFunc func, gpointer data) { GdkClientFilter *filter; g_return_if_fail (GDK_IS_DISPLAY (display)); filter = g_new (GdkClientFilter, 1); filter->type = message_type; filter->function = func; filter->data = data; GDK_DISPLAY_X11(display)->client_filters = g_list_prepend (GDK_DISPLAY_X11 (display)->client_filters, filter); } /** * gdk_add_client_message_filter: * @message_type: the type of ClientMessage events to receive. This will be * checked against the message_type field of the * XClientMessage event struct. * @func: the function to call to process the event. * @data: user data to pass to @func. * * Adds a filter to the default display to be called when X ClientMessage events * are received. See gdk_display_add_client_message_filter(). **/ void gdk_add_client_message_filter (GdkAtom message_type, GdkFilterFunc func, gpointer data) { gdk_display_add_client_message_filter (gdk_display_get_default (), message_type, func, data); } static void gdk_check_wm_state_changed (GdkWindow *window) { Atom type; gint format; gulong nitems; gulong bytes_after; Atom *atoms = NULL; gulong i; gboolean found_sticky, found_maxvert, found_maxhorz, found_fullscreen; GdkWindowState old_state; GdkDisplay *display = GDK_WINDOW_DISPLAY (window); if (GDK_WINDOW_DESTROYED (window) || gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL) return; found_sticky = FALSE; found_maxvert = FALSE; found_maxhorz = FALSE; found_fullscreen = FALSE; XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), 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, (guchar **)&atoms); 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"); i = 0; while (i < nitems) { if (atoms[i] == sticky_atom) found_sticky = TRUE; else if (atoms[i] == maxvert_atom) found_maxvert = TRUE; else if (atoms[i] == maxhorz_atom) found_maxhorz = TRUE; else if (atoms[i] == fullscreen_atom) found_fullscreen = TRUE; ++i; } XFree (atoms); } /* For found_sticky to remain TRUE, we have to also be on desktop * 0xFFFFFFFF */ if (found_sticky) { gulong *desktop; XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), 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, (guchar **)&desktop); if (type != None) { if (*desktop != 0xFFFFFFFF) found_sticky = FALSE; XFree (desktop); } } old_state = gdk_window_get_state (window); if (old_state & GDK_WINDOW_STATE_STICKY) { if (!found_sticky) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_STICKY, 0); } else { if (found_sticky) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_STICKY); } if (old_state & GDK_WINDOW_STATE_FULLSCREEN) { if (!found_fullscreen) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_FULLSCREEN, 0); } else { if (found_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 (!(found_maxvert && found_maxhorz)) gdk_synthesize_window_state (window, GDK_WINDOW_STATE_MAXIMIZED, 0); } else { if (found_maxvert && found_maxhorz) gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_MAXIMIZED); } } #define HAS_FOCUS(window_impl) \ ((window_impl)->has_focus || (window_impl)->has_pointer_focus) static void generate_focus_event (GdkWindow *window, gboolean in) { GdkEvent event; event.type = GDK_FOCUS_CHANGE; event.focus_change.window = window; event.focus_change.send_event = FALSE; event.focus_change.in = in; gdk_event_put (&event); } static void set_screen_from_root (GdkDisplay *display, GdkEvent *event, Window xrootwin) { GdkScreen *screen; screen = _gdk_x11_display_screen_for_xrootwin (display, xrootwin); g_assert (screen); gdk_event_set_screen (event, screen); } static void translate_key_event (GdkDisplay *display, GdkEvent *event, XEvent *xevent) { GdkKeymap *keymap = gdk_keymap_get_for_display (display); gunichar c = 0; guchar buf[7]; event->key.type = xevent->xany.type == KeyPress ? GDK_KEY_PRESS : GDK_KEY_RELEASE; event->key.time = xevent->xkey.time; event->key.state = (GdkModifierType) xevent->xkey.state; event->key.group = _gdk_x11_get_group_for_state (display, xevent->xkey.state); event->key.hardware_keycode = xevent->xkey.keycode; event->key.keyval = GDK_VoidSymbol; gdk_keymap_translate_keyboard_state (keymap, event->key.hardware_keycode, event->key.state, event->key.group, &event->key.keyval, NULL, NULL, NULL); /* Fill in event->string crudely, since various programs * depend on it. */ event->key.string = NULL; if (event->key.keyval != GDK_VoidSymbol) c = gdk_keyval_to_unicode (event->key.keyval); if (c) { gsize bytes_written; gint len; /* Apply the control key - Taken from Xlib */ if (event->key.state & GDK_CONTROL_MASK) { if ((c >= '@' && c < '\177') || c == ' ') c &= 0x1F; else if (c == '2') { event->key.string = g_memdup ("\0\0", 2); event->key.length = 1; buf[0] = '\0'; goto out; } else if (c >= '3' && c <= '7') c -= ('3' - '\033'); else if (c == '8') c = '\177'; else if (c == '/') c = '_' & 0x1F; } len = g_unichar_to_utf8 (c, buf); buf[len] = '\0'; event->key.string = g_locale_from_utf8 (buf, len, NULL, &bytes_written, NULL); if (event->key.string) event->key.length = bytes_written; } else if (event->key.keyval == GDK_Escape) { event->key.length = 1; event->key.string = g_strdup ("\033"); } else if (event->key.keyval == GDK_Return || event->key.keyval == GDK_KP_Enter) { event->key.length = 1; event->key.string = g_strdup ("\r"); } if (!event->key.string) { event->key.length = 0; event->key.string = g_strdup (""); } out: #ifdef G_ENABLE_DEBUG if (_gdk_debug_flags & GDK_DEBUG_EVENTS) { g_message ("%s:\t\twindow: %ld key: %12s %d", event->type == GDK_KEY_PRESS ? "key press " : "key release", xevent->xkey.window, event->key.keyval ? gdk_keyval_name (event->key.keyval) : "(none)", event->key.keyval); if (event->key.length > 0) g_message ("\t\tlength: %4d string: \"%s\"", event->key.length, buf); } #endif /* G_ENABLE_DEBUG */ return; } /* Return the window this has to do with, if any, rather * than the frame or root window that was selecting * for substructure */ static Window get_real_window (XEvent *event) { switch (event->type) { case CreateNotify: return event->xcreatewindow.window; case DestroyNotify: return event->xdestroywindow.window; case UnmapNotify: return event->xunmap.window; case MapNotify: return event->xmap.window; case MapRequest: return event->xmaprequest.window; case ReparentNotify: return event->xreparent.window; case ConfigureNotify: return event->xconfigure.window; case ConfigureRequest: return event->xconfigurerequest.window; case GravityNotify: return event->xgravity.window; case CirculateNotify: return event->xcirculate.window; case CirculateRequest: return event->xcirculaterequest.window; default: return event->xany.window; } } #ifdef G_ENABLE_DEBUG static const char notify_modes[][18] = { "NotifyNormal", "NotifyGrab", "NotifyUngrab", "NotifyWhileGrabbed" }; static const char notify_details[][22] = { "NotifyAncestor", "NotifyVirtual", "NotifyInferior", "NotifyNonlinear", "NotifyNonlinearVirtual", "NotifyPointer", "NotifyPointerRoot", "NotifyDetailNone" }; #endif static gboolean gdk_event_translate (GdkDisplay *display, GdkEvent *event, XEvent *xevent, gboolean return_exposes) { GdkWindow *window; GdkWindowObject *window_private; GdkWindow *filter_window; GdkWindowImplX11 *window_impl = NULL; gint return_val; gint xoffset, yoffset; GdkScreen *screen = NULL; GdkScreenX11 *screen_x11 = NULL; GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display); Window xwindow; return_val = FALSE; /* init these, since the done: block uses them */ window = NULL; window_private = NULL; event->any.window = NULL; if (_gdk_default_filters) { /* Apply global filters */ GdkFilterReturn result; result = gdk_event_apply_filters (xevent, event, _gdk_default_filters); if (result != GDK_FILTER_CONTINUE) { return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE; goto done; } } /* We handle events with window=None * specially - they are generated by XFree86's XInput under * some circumstances. This handling for obvious reasons * goes before we bother to lookup the event window. */ if (xevent->xany.window == None) { return_val = _gdk_input_window_none_event (event, xevent); if (return_val >= 0) /* was handled */ return return_val; else return_val = FALSE; } /* Find the GdkWindow that this event relates to. * Basically this means substructure events * are reported same as structure events */ xwindow = get_real_window (xevent); window = gdk_window_lookup_for_display (display, xwindow); window_private = (GdkWindowObject *) window; /* We always run the filters for the window where the event * is delivered, not the window that it relates to */ if (xevent->xany.window == xwindow) filter_window = window; else filter_window = gdk_window_lookup_for_display (display, xevent->xany.window); if (window) { screen = GDK_WINDOW_SCREEN (window); screen_x11 = GDK_SCREEN_X11 (screen); } if (window != NULL) { /* Window may be a pixmap, so check its type. * (This check is probably too expensive unless * GLib short-circuits an exact type match, * which has been proposed) */ if (GDK_IS_WINDOW (window)) { window_impl = GDK_WINDOW_IMPL_X11 (window_private->impl); /* Move key events on focus window to the real toplevel, and * filter out all other events on focus window */ if (xwindow == window_impl->focus_window) { switch (xevent->type) { case KeyPress: case KeyRelease: xwindow = GDK_WINDOW_XID (window); xevent->xany.window = xwindow; break; default: return FALSE; } } } g_object_ref (window); } event->any.window = window; event->any.send_event = xevent->xany.send_event ? TRUE : FALSE; if (window_private && GDK_WINDOW_DESTROYED (window)) { if (xevent->type != DestroyNotify) { return_val = FALSE; goto done; } } else if (filter_window) { /* Apply per-window filters */ GdkWindowObject *filter_private = (GdkWindowObject *) filter_window; GdkFilterReturn result; if (filter_private->filters) { g_object_ref (filter_window); result = gdk_event_apply_filters (xevent, event, filter_private->filters); g_object_unref (filter_window); if (result != GDK_FILTER_CONTINUE) { return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE; goto done; } } } if (screen_x11 && screen_x11->wmspec_check_window != None && xwindow == screen_x11->wmspec_check_window) { if (xevent->type == DestroyNotify) { screen_x11->wmspec_check_window = None; g_free (screen_x11->window_manager_name); screen_x11->window_manager_name = g_strdup ("unknown"); /* careful, reentrancy */ _gdk_x11_screen_window_manager_changed (GDK_SCREEN (screen_x11)); } /* Eat events on this window unless someone had wrapped * it as a foreign window */ if (window == NULL) { return_val = FALSE; goto done; } } if (window && (xevent->xany.type == MotionNotify || xevent->xany.type == ButtonRelease)) { if (_gdk_moveresize_handle_event (xevent)) { 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; if (window) { _gdk_windowing_window_get_offsets (window, &xoffset, &yoffset); } else { xoffset = 0; yoffset = 0; } switch (xevent->type) { case KeyPress: if (window_private == NULL) { return_val = FALSE; break; } translate_key_event (display, event, xevent); break; case KeyRelease: if (window_private == NULL) { return_val = FALSE; break; } /* Emulate detectable auto-repeat by checking to see * if the next event is a key press with the same * keycode and timestamp, and if so, ignoring the event. */ if (!display_x11->have_xkb_autorepeat && XPending (xevent->xkey.display)) { XEvent next_event; XPeekEvent (xevent->xkey.display, &next_event); if (next_event.type == KeyPress && next_event.xkey.keycode == xevent->xkey.keycode && next_event.xkey.time == xevent->xkey.time) { return_val = FALSE; break; } } translate_key_event (display, event, xevent); break; case ButtonPress: GDK_NOTE (EVENTS, g_message ("button press:\t\twindow: %ld x,y: %d %d button: %d", xevent->xbutton.window, xevent->xbutton.x, xevent->xbutton.y, xevent->xbutton.button)); if (window_private == NULL || ((window_private->extension_events != 0) && display_x11->input_ignore_core)) { return_val = FALSE; break; } /* If we get a ButtonPress event where the button is 4 or 5, it's a Scroll event */ switch (xevent->xbutton.button) { case 4: /* up */ case 5: /* down */ case 6: /* left */ case 7: /* right */ event->scroll.type = GDK_SCROLL; if (xevent->xbutton.button == 4) event->scroll.direction = GDK_SCROLL_UP; else if (xevent->xbutton.button == 5) event->scroll.direction = GDK_SCROLL_DOWN; else if (xevent->xbutton.button == 6) event->scroll.direction = GDK_SCROLL_LEFT; else event->scroll.direction = GDK_SCROLL_RIGHT; event->scroll.window = window; event->scroll.time = xevent->xbutton.time; event->scroll.x = xevent->xbutton.x + xoffset; event->scroll.y = xevent->xbutton.y + yoffset; event->scroll.x_root = (gfloat)xevent->xbutton.x_root; event->scroll.y_root = (gfloat)xevent->xbutton.y_root; event->scroll.state = (GdkModifierType) xevent->xbutton.state; event->scroll.device = display->core_pointer; set_screen_from_root (display, event, xevent->xbutton.root); break; default: event->button.type = GDK_BUTTON_PRESS; event->button.window = window; event->button.time = xevent->xbutton.time; event->button.x = xevent->xbutton.x + xoffset; event->button.y = xevent->xbutton.y + yoffset; event->button.x_root = (gfloat)xevent->xbutton.x_root; event->button.y_root = (gfloat)xevent->xbutton.y_root; event->button.axes = NULL; event->button.state = (GdkModifierType) xevent->xbutton.state; event->button.button = xevent->xbutton.button; event->button.device = display->core_pointer; set_screen_from_root (display, event, xevent->xbutton.root); _gdk_event_button_generate (display, event); break; } break; case ButtonRelease: GDK_NOTE (EVENTS, g_message ("button release:\twindow: %ld x,y: %d %d button: %d", xevent->xbutton.window, xevent->xbutton.x, xevent->xbutton.y, xevent->xbutton.button)); if (window_private == NULL || ((window_private->extension_events != 0) && display_x11->input_ignore_core)) { return_val = FALSE; break; } /* We treat button presses as scroll wheel events, so ignore the release */ if (xevent->xbutton.button == 4 || xevent->xbutton.button == 5 || xevent->xbutton.button == 6 || xevent->xbutton.button ==7) { return_val = FALSE; break; } event->button.type = GDK_BUTTON_RELEASE; event->button.window = window; event->button.time = xevent->xbutton.time; event->button.x = xevent->xbutton.x + xoffset; event->button.y = xevent->xbutton.y + yoffset; event->button.x_root = (gfloat)xevent->xbutton.x_root; event->button.y_root = (gfloat)xevent->xbutton.y_root; event->button.axes = NULL; event->button.state = (GdkModifierType) xevent->xbutton.state; event->button.button = xevent->xbutton.button; event->button.device = display->core_pointer; set_screen_from_root (display, event, xevent->xbutton.root); break; case MotionNotify: GDK_NOTE (EVENTS, g_message ("motion notify:\t\twindow: %ld x,y: %d %d hint: %s", xevent->xmotion.window, xevent->xmotion.x, xevent->xmotion.y, (xevent->xmotion.is_hint) ? "true" : "false")); if (window_private == NULL || ((window_private->extension_events != 0) && display_x11->input_ignore_core)) { return_val = FALSE; break; } event->motion.type = GDK_MOTION_NOTIFY; event->motion.window = window; event->motion.time = xevent->xmotion.time; event->motion.x = xevent->xmotion.x + xoffset; event->motion.y = xevent->xmotion.y + yoffset; event->motion.x_root = (gfloat)xevent->xmotion.x_root; event->motion.y_root = (gfloat)xevent->xmotion.y_root; event->motion.axes = NULL; event->motion.state = (GdkModifierType) xevent->xmotion.state; event->motion.is_hint = xevent->xmotion.is_hint; event->motion.device = display->core_pointer; set_screen_from_root (display, event, xevent->xmotion.root); break; case EnterNotify: GDK_NOTE (EVENTS, g_message ("enter notify:\t\twindow: %ld detail: %d subwin: %ld", xevent->xcrossing.window, xevent->xcrossing.detail, xevent->xcrossing.subwindow)); if (window_private == NULL) { return_val = FALSE; break; } /* Handle focusing (in the case where no window manager is running */ if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD && xevent->xcrossing.detail != NotifyInferior && xevent->xcrossing.focus && !window_impl->has_focus_window) { gboolean had_focus = HAS_FOCUS (window_impl); window_impl->has_pointer_focus = TRUE; if (HAS_FOCUS (window_impl) != had_focus) generate_focus_event (window, TRUE); } /* Tell XInput stuff about it if appropriate */ if (window_private && !GDK_WINDOW_DESTROYED (window) && window_private->extension_events != 0) _gdk_input_enter_event (&xevent->xcrossing, window); event->crossing.type = GDK_ENTER_NOTIFY; event->crossing.window = window; /* If the subwindow field of the XEvent is non-NULL, then * lookup the corresponding GdkWindow. */ if (xevent->xcrossing.subwindow != None) event->crossing.subwindow = gdk_window_lookup_for_display (display, xevent->xcrossing.subwindow); else event->crossing.subwindow = NULL; event->crossing.time = xevent->xcrossing.time; event->crossing.x = xevent->xcrossing.x + xoffset; event->crossing.y = xevent->xcrossing.y + yoffset; event->crossing.x_root = xevent->xcrossing.x_root; event->crossing.y_root = xevent->xcrossing.y_root; set_screen_from_root (display, event, xevent->xcrossing.root); /* Translate the crossing mode into Gdk terms. */ switch (xevent->xcrossing.mode) { case NotifyNormal: event->crossing.mode = GDK_CROSSING_NORMAL; break; case NotifyGrab: event->crossing.mode = GDK_CROSSING_GRAB; break; case NotifyUngrab: event->crossing.mode = GDK_CROSSING_UNGRAB; break; }; /* Translate the crossing detail into Gdk terms. */ switch (xevent->xcrossing.detail) { case NotifyInferior: event->crossing.detail = GDK_NOTIFY_INFERIOR; break; case NotifyAncestor: event->crossing.detail = GDK_NOTIFY_ANCESTOR; break; case NotifyVirtual: event->crossing.detail = GDK_NOTIFY_VIRTUAL; break; case NotifyNonlinear: event->crossing.detail = GDK_NOTIFY_NONLINEAR; break; case NotifyNonlinearVirtual: event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL; break; default: event->crossing.detail = GDK_NOTIFY_UNKNOWN; break; } event->crossing.focus = xevent->xcrossing.focus; event->crossing.state = xevent->xcrossing.state; break; case LeaveNotify: GDK_NOTE (EVENTS, g_message ("leave notify:\t\twindow: %ld detail: %d subwin: %ld", xevent->xcrossing.window, xevent->xcrossing.detail, xevent->xcrossing.subwindow)); if (window_private == NULL) { return_val = FALSE; break; } /* Handle focusing (in the case where no window manager is running */ if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD && xevent->xcrossing.detail != NotifyInferior && xevent->xcrossing.focus && !window_impl->has_focus_window) { gboolean had_focus = HAS_FOCUS (window_impl); window_impl->has_pointer_focus = FALSE; if (HAS_FOCUS (window_impl) != had_focus) generate_focus_event (window, FALSE); } event->crossing.type = GDK_LEAVE_NOTIFY; event->crossing.window = window; /* If the subwindow field of the XEvent is non-NULL, then * lookup the corresponding GdkWindow. */ if (xevent->xcrossing.subwindow != None) event->crossing.subwindow = gdk_window_lookup_for_display (display, xevent->xcrossing.subwindow); else event->crossing.subwindow = NULL; event->crossing.time = xevent->xcrossing.time; event->crossing.x = xevent->xcrossing.x + xoffset; event->crossing.y = xevent->xcrossing.y + yoffset; event->crossing.x_root = xevent->xcrossing.x_root; event->crossing.y_root = xevent->xcrossing.y_root; set_screen_from_root (display, event, xevent->xcrossing.root); /* Translate the crossing mode into Gdk terms. */ switch (xevent->xcrossing.mode) { case NotifyNormal: event->crossing.mode = GDK_CROSSING_NORMAL; break; case NotifyGrab: event->crossing.mode = GDK_CROSSING_GRAB; break; case NotifyUngrab: event->crossing.mode = GDK_CROSSING_UNGRAB; break; }; /* Translate the crossing detail into Gdk terms. */ switch (xevent->xcrossing.detail) { case NotifyInferior: event->crossing.detail = GDK_NOTIFY_INFERIOR; break; case NotifyAncestor: event->crossing.detail = GDK_NOTIFY_ANCESTOR; break; case NotifyVirtual: event->crossing.detail = GDK_NOTIFY_VIRTUAL; break; case NotifyNonlinear: event->crossing.detail = GDK_NOTIFY_NONLINEAR; break; case NotifyNonlinearVirtual: event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL; break; default: event->crossing.detail = GDK_NOTIFY_UNKNOWN; break; } event->crossing.focus = xevent->xcrossing.focus; event->crossing.state = xevent->xcrossing.state; break; /* We only care about focus events that indicate that _this_ * window (not a ancestor or child) got or lost the focus */ case FocusIn: GDK_NOTE (EVENTS, g_message ("focus in:\t\twindow: %ld, detail: %s, mode: %s", xevent->xfocus.window, notify_details[xevent->xfocus.detail], notify_modes[xevent->xfocus.mode])); if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD) { gboolean had_focus = HAS_FOCUS (window_impl); switch (xevent->xfocus.detail) { case NotifyAncestor: case NotifyNonlinear: case NotifyVirtual: case NotifyNonlinearVirtual: window_impl->has_focus_window = TRUE; /* We pretend that the focus moves to the grab * window, so we pay attention to NotifyGrab * NotifyUngrab, and ignore NotifyWhileGrabbed */ if (xevent->xfocus.mode != NotifyWhileGrabbed) window_impl->has_focus = TRUE; break; case NotifyPointer: /* The X server sends NotifyPointer/NotifyGrab, * but the pointer focus is ignored while a * grab is in effect */ if (xevent->xfocus.mode != NotifyGrab) window_impl->has_pointer_focus = TRUE; break; case NotifyInferior: case NotifyPointerRoot: case NotifyDetailNone: break; } if (HAS_FOCUS (window_impl) != had_focus) generate_focus_event (window, TRUE); } break; case FocusOut: GDK_NOTE (EVENTS, g_message ("focus out:\t\twindow: %ld, detail: %s, mode: %s", xevent->xfocus.window, notify_details[xevent->xfocus.detail], notify_modes[xevent->xfocus.mode])); if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD) { gboolean had_focus = HAS_FOCUS (window_impl); switch (xevent->xfocus.detail) { case NotifyAncestor: case NotifyNonlinear: case NotifyVirtual: case NotifyNonlinearVirtual: window_impl->has_focus_window = FALSE; if (xevent->xfocus.mode != NotifyWhileGrabbed) window_impl->has_focus = FALSE; break; case NotifyPointer: if (xevent->xfocus.mode != NotifyUngrab) window_impl->has_pointer_focus = FALSE; break; case NotifyInferior: case NotifyPointerRoot: case NotifyDetailNone: break; } if (HAS_FOCUS (window_impl) != had_focus) generate_focus_event (window, FALSE); } break; #if 0 /* gdk_keyboard_grab() causes following events. These events confuse * the XIM focus, so ignore them. */ if (xevent->xfocus.mode == NotifyGrab || xevent->xfocus.mode == NotifyUngrab) break; #endif 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_private == NULL) { return_val = FALSE; break; } { GdkRectangle expose_rect; expose_rect.x = xevent->xexpose.x + xoffset; expose_rect.y = xevent->xexpose.y + yoffset; expose_rect.width = xevent->xexpose.width; expose_rect.height = xevent->xexpose.height; if (return_exposes) { event->expose.type = GDK_EXPOSE; event->expose.area = expose_rect; event->expose.region = gdk_region_rectangle (&expose_rect); event->expose.window = window; event->expose.count = xevent->xexpose.count; return_val = TRUE; } else { _gdk_window_process_expose (window, xevent->xexpose.serial, &expose_rect); return_val = FALSE; } return_val = FALSE; } break; case GraphicsExpose: { GdkRectangle expose_rect; GDK_NOTE (EVENTS, g_message ("graphics expose:\tdrawable: %ld", xevent->xgraphicsexpose.drawable)); if (window_private == NULL) { return_val = FALSE; break; } expose_rect.x = xevent->xgraphicsexpose.x + xoffset; expose_rect.y = xevent->xgraphicsexpose.y + yoffset; expose_rect.width = xevent->xgraphicsexpose.width; expose_rect.height = xevent->xgraphicsexpose.height; if (return_exposes) { event->expose.type = GDK_EXPOSE; event->expose.area = expose_rect; event->expose.region = gdk_region_rectangle (&expose_rect); event->expose.window = window; event->expose.count = xevent->xgraphicsexpose.count; return_val = TRUE; } else { _gdk_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect); return_val = FALSE; } } break; case NoExpose: GDK_NOTE (EVENTS, g_message ("no expose:\t\tdrawable: %ld", xevent->xnoexpose.drawable)); event->no_expose.type = GDK_NO_EXPOSE; event->no_expose.window = window; 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_private == 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_private && !GDK_WINDOW_DESTROYED (window); if (window && GDK_WINDOW_XID (window) != screen_x11->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 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_xgrab_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 && (((GdkWindowObject*)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)" : GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ? " (discarding child)" : xevent->xconfigure.event != xevent->xconfigure.window ? " (discarding substructure)" : "")); if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT) _gdk_x11_screen_size_changed (screen, xevent); if (window && xevent->xconfigure.event == xevent->xconfigure.window && !GDK_WINDOW_DESTROYED (window) && (window_private->extension_events != 0)) _gdk_input_configure_event (&xevent->xconfigure, window); 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 && !GDK_WINDOW_DESTROYED (window)) { gint tx = 0; gint ty = 0; Window child_window = 0; gdk_error_trap_push (); if (XTranslateCoordinates (GDK_DRAWABLE_XDISPLAY (window), GDK_DRAWABLE_XID (window), screen_x11->xroot_window, 0, 0, &tx, &ty, &child_window)) { if (!gdk_error_trap_pop ()) { event->configure.x = tx; event->configure.y = ty; } } else gdk_error_trap_pop (); } else { event->configure.x = xevent->xconfigure.x; event->configure.y = xevent->xconfigure.y; } window_private->x = event->configure.x; window_private->y = event->configure.y; GDK_WINDOW_IMPL_X11 (window_private->impl)->width = xevent->xconfigure.width; GDK_WINDOW_IMPL_X11 (window_private->impl)->height = xevent->xconfigure.height; if (window_private->resize_count >= 1) { window_private->resize_count -= 1; if (window_private->resize_count == 0) _gdk_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_private == NULL) { return_val = FALSE; break; } if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE") || xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP")) { /* If window state changed, then synthesize those events. */ gdk_check_wm_state_changed (window); } if (window_private->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_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); event->selection.requestor = xevent->xselectionrequest.requestor; 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); 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: { GList *tmp_list; GdkFilterReturn result = GDK_FILTER_CONTINUE; GdkAtom message_type = gdk_x11_xatom_to_atom_for_display (display, xevent->xclient.message_type); GDK_NOTE (EVENTS, g_message ("client message:\twindow: %ld", xevent->xclient.window)); tmp_list = display_x11->client_filters; while (tmp_list) { GdkClientFilter *filter = tmp_list->data; if (filter->type == message_type) { result = (*filter->function) (xevent, event, filter->data); break; } tmp_list = tmp_list->next; } switch (result) { case GDK_FILTER_REMOVE: return_val = FALSE; break; case GDK_FILTER_TRANSLATE: return_val = TRUE; break; case GDK_FILTER_CONTINUE: /* Send unknown ClientMessage's on to Gtk for it to use */ if (window_private == NULL) { return_val = FALSE; } else { event->client.type = GDK_CLIENT_EVENT; event->client.window = window; event->client.message_type = message_type; event->client.data_format = xevent->xclient.format; memcpy(&event->client.data, &xevent->xclient.data, sizeof(event->client.data)); } break; } } break; case MappingNotify: GDK_NOTE (EVENTS, g_message ("mapping notify")); /* Let XLib know that there is a new keyboard mapping. */ XRefreshKeyboardMapping (&xevent->xmapping); _gdk_keymap_keys_changed (display); return_val = FALSE; break; default: #ifdef HAVE_XKB if (xevent->type == display_x11->xkb_event_type) { XkbEvent *xkb_event = (XkbEvent *)xevent; switch (xkb_event->any.xkb_type) { case XkbMapNotify: _gdk_keymap_keys_changed (display); return_val = FALSE; break; case XkbStateNotify: _gdk_keymap_state_changed (display); break; } } else #endif { /* something else - (e.g., a Xinput event) */ if (window_private && !GDK_WINDOW_DESTROYED (window_private) && (window_private->extension_events != 0)) return_val = _gdk_input_other_event(event, xevent, window); else return_val = FALSE; break; } } done: if (return_val) { if (event->any.window) g_object_ref (event->any.window); if (((event->any.type == GDK_ENTER_NOTIFY) || (event->any.type == GDK_LEAVE_NOTIFY)) && (event->crossing.subwindow != NULL)) g_object_ref (event->crossing.subwindow); } 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; } static GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev, GdkEvent *event, gpointer data) { XEvent *xevent = (XEvent *)xev; GdkWindow *win = event->any.window; GdkDisplay *display = GDK_WINDOW_DISPLAY (win); if ((Atom) xevent->xclient.data.l[0] == 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; return GDK_FILTER_TRANSLATE; } else if ((Atom) xevent->xclient.data.l[0] == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS")) { GdkWindow *win = event->any.window; Window focus_win = GDK_WINDOW_IMPL_X11(((GdkWindowObject *)win)->impl)->focus_window; /* There is no way of knowing reliably whether we are viewable so we need * to trap errors so we don't cause a BadMatch. */ gdk_error_trap_push (); XSetInputFocus (GDK_WINDOW_XDISPLAY (win), focus_win, RevertToParent, xevent->xclient.data.l[1]); XSync (GDK_WINDOW_XDISPLAY (win), False); gdk_error_trap_pop (); } else if ((Atom) xevent->xclient.data.l[0] == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING")) { XEvent xev = *xevent; xev.xclient.window = GDK_WINDOW_XROOTWIN (win); XSendEvent (GDK_WINDOW_XDISPLAY (win), xev.xclient.window, False, SubstructureRedirectMask | SubstructureNotifyMask, &xev); } return GDK_FILTER_REMOVE; } void _gdk_events_queue (GdkDisplay *display) { GList *node; GdkEvent *event; XEvent xevent; Display *xdisplay = GDK_DISPLAY_XDISPLAY (display); while (!_gdk_event_queue_find_first(display) && XPending (xdisplay)) { XNextEvent (xdisplay, &xevent); switch (xevent.type) { case KeyPress: case KeyRelease: break; default: if (XFilterEvent (&xevent, None)) continue; } event = gdk_event_new (GDK_NOTHING); event->any.window = NULL; event->any.send_event = xevent.xany.send_event ? TRUE : FALSE; ((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING; node = _gdk_event_queue_append (display, event); if (gdk_event_translate (display, event, &xevent, FALSE)) { ((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING; } else { _gdk_event_queue_remove_link (display, node); g_list_free_1 (node); gdk_event_free (event); } } } static gboolean gdk_event_prepare (GSource *source, gint *timeout) { GdkDisplay *display = ((GdkDisplaySource*)source)->display; gboolean retval; GDK_THREADS_ENTER (); *timeout = -1; retval = (_gdk_event_queue_find_first (display) != NULL || gdk_check_xpending (display)); GDK_THREADS_LEAVE (); return retval; } static gboolean gdk_event_check (GSource *source) { GdkDisplaySource *display_source = (GdkDisplaySource*)source; gboolean retval; GDK_THREADS_ENTER (); if (display_source->event_poll_fd.revents & G_IO_IN) retval = (_gdk_event_queue_find_first (display_source->display) != NULL || gdk_check_xpending (display_source->display)); else retval = FALSE; GDK_THREADS_LEAVE (); return retval; } static gboolean gdk_event_dispatch (GSource *source, GSourceFunc callback, gpointer user_data) { GdkDisplay *display = ((GdkDisplaySource*)source)->display; GdkEvent *event; GDK_THREADS_ENTER (); _gdk_events_queue (display); event = _gdk_event_unqueue (display); if (event) { if (_gdk_event_func) (*_gdk_event_func) (event, _gdk_event_data); gdk_event_free (event); } GDK_THREADS_LEAVE (); return TRUE; } /** * gdk_event_send_client_message_for_display: * @display: the #GdkDisplay for the window where the message is to be sent. * @event: the #GdkEvent to send, which should be a #GdkEventClient. * @winid: the window to send the X ClientMessage event to. * * Sends an X ClientMessage event to a given window. * * This could be used for communicating between different applications, * though the amount of data is limited to 20 bytes. * * Returns: non-zero on success. * * Since: 2.2 */ gboolean gdk_event_send_client_message_for_display (GdkDisplay *display, GdkEvent *event, GdkNativeWindow winid) { XEvent sev; g_return_val_if_fail(event != NULL, FALSE); /* Set up our event to send, with the exception of its target window */ sev.xclient.type = ClientMessage; sev.xclient.display = GDK_DISPLAY_XDISPLAY (display); sev.xclient.format = event->client.data_format; sev.xclient.window = winid; memcpy(&sev.xclient.data, &event->client.data, sizeof (sev.xclient.data)); sev.xclient.message_type = gdk_x11_atom_to_xatom_for_display (display, event->client.message_type); return _gdk_send_xevent (display, winid, False, NoEventMask, &sev); } /* Sends a ClientMessage to all toplevel client windows */ gboolean gdk_event_send_client_message_to_all_recurse (GdkDisplay *display, XEvent *xev, guint32 xid, guint level) { Atom type = None; int format; unsigned long nitems, after; unsigned char *data; Window *ret_children, ret_root, ret_parent; unsigned int ret_nchildren; gboolean send = FALSE; gboolean found = FALSE; gboolean result = FALSE; int i; gdk_error_trap_push (); if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), xid, gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"), 0, 0, False, AnyPropertyType, &type, &format, &nitems, &after, &data) != Success) goto out; if (type) { send = TRUE; XFree (data); } else { /* OK, we're all set, now let's find some windows to send this to */ if (!XQueryTree (GDK_DISPLAY_XDISPLAY (display), xid, &ret_root, &ret_parent, &ret_children, &ret_nchildren)) goto out; for(i = 0; i < ret_nchildren; i++) if (gdk_event_send_client_message_to_all_recurse (display, xev, ret_children[i], level + 1)) found = TRUE; XFree (ret_children); } if (send || (!found && (level == 1))) { xev->xclient.window = xid; _gdk_send_xevent (display, xid, False, NoEventMask, xev); } result = send || found; out: gdk_error_trap_pop (); return result; } /** * gdk_screen_broadcast_client_message: * @screen: the #GdkScreen where the event will be broadcasted. * @event: the #GdkEvent. * * Sends an X ClientMessage event to all toplevel windows on @screen. * * Toplevel windows are determined by checking for the WM_STATE property, * as described in the Inter-Client Communication Conventions Manual (ICCCM). * If no windows are found with the WM_STATE property set, the message is * sent to all children of the root window. * * Since: 2.2 */ void gdk_screen_broadcast_client_message (GdkScreen *screen, GdkEvent *event) { XEvent sev; GdkWindow *root_window; g_return_if_fail (event != NULL); root_window = gdk_screen_get_root_window (screen); /* Set up our event to send, with the exception of its target window */ sev.xclient.type = ClientMessage; sev.xclient.display = GDK_WINDOW_XDISPLAY (root_window); sev.xclient.format = event->client.data_format; memcpy(&sev.xclient.data, &event->client.data, sizeof (sev.xclient.data)); sev.xclient.message_type = gdk_x11_atom_to_xatom_for_display (GDK_WINDOW_DISPLAY (root_window), event->client.message_type); gdk_event_send_client_message_to_all_recurse (gdk_screen_get_display (screen), &sev, GDK_WINDOW_XID (root_window), 0); } /* *-------------------------------------------------------------- * gdk_flush * * Flushes the Xlib output buffer and then waits * until all requests have been received and processed * by the X server. The only real use for this function * is in dealing with XShm. * * Arguments: * * Results: * * Side effects: * *-------------------------------------------------------------- */ void gdk_flush (void) { GSList *tmp_list = _gdk_displays; while (tmp_list) { XSync (GDK_DISPLAY_XDISPLAY (tmp_list->data), False); tmp_list = tmp_list->next; } } static Bool timestamp_predicate (Display *display, XEvent *xevent, XPointer arg) { Window xwindow = GPOINTER_TO_UINT (arg); GdkDisplay *gdk_display = gdk_x11_lookup_xdisplay (display); if (xevent->type == PropertyNotify && xevent->xproperty.window == xwindow && xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (gdk_display, "GDK_TIMESTAMP_PROP")) return True; return False; } /** * gdk_x11_get_server_time: * @window: a #GdkWindow, used for communication with the server. * The window must have GDK_PROPERTY_CHANGE_MASK in its * events mask or a hang will result. * * Routine to get the current X server time stamp. * * Return value: the time stamp. **/ guint32 gdk_x11_get_server_time (GdkWindow *window) { Display *xdisplay; Window xwindow; guchar c = 'a'; XEvent xevent; Atom timestamp_prop_atom; g_return_val_if_fail (GDK_IS_WINDOW (window), 0); g_return_val_if_fail (!GDK_WINDOW_DESTROYED (window), 0); xdisplay = GDK_WINDOW_XDISPLAY (window); xwindow = GDK_WINDOW_XWINDOW (window); timestamp_prop_atom = gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window), "GDK_TIMESTAMP_PROP"); XChangeProperty (xdisplay, xwindow, timestamp_prop_atom, timestamp_prop_atom, 8, PropModeReplace, &c, 1); XIfEvent (xdisplay, &xevent, timestamp_predicate, GUINT_TO_POINTER(xwindow)); return xevent.xproperty.time; } static void fetch_net_wm_check_window (GdkScreen *screen) { GdkScreenX11 *screen_x11; GdkDisplay *display; Atom type; gint format; gulong n_items; gulong bytes_after; Window *xwindow; /* This function is very slow on every call if you are not running a * spec-supporting WM. For now not optimized, because it isn't in * any critical code paths, but if you used it somewhere that had to * be fast you want to avoid "GTK is slow with old WMs" complaints. * Probably at that point the function should be changed to query * _NET_SUPPORTING_WM_CHECK only once every 10 seconds or something. */ screen_x11 = GDK_SCREEN_X11 (screen); display = screen_x11->display; if (screen_x11->wmspec_check_window != None) return; /* already have it */ XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), screen_x11->xroot_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTING_WM_CHECK"), 0, G_MAXLONG, False, XA_WINDOW, &type, &format, &n_items, &bytes_after, (guchar **) & xwindow); if (type != XA_WINDOW) return; gdk_error_trap_push (); /* Find out if this WM goes away, so we can reset everything. */ XSelectInput (screen_x11->xdisplay, *xwindow, StructureNotifyMask); screen_x11->wmspec_check_window = *xwindow; XFree (xwindow); screen_x11->need_refetch_net_supported = TRUE; screen_x11->need_refetch_wm_name = TRUE; /* Careful, reentrancy */ _gdk_x11_screen_window_manager_changed (GDK_SCREEN (screen_x11)); } /** * gdk_x11_screen_get_window_manager_name: * @screen: a #GdkScreen * * Returns the name of the window manager for @screen. * * Return value: the name of the window manager screen @screen, or * "unknown" if the window manager is unknown. The string is owned by GDK * and should not be freed. * * Since: 2.2 **/ const char* gdk_x11_screen_get_window_manager_name (GdkScreen *screen) { GdkScreenX11 *screen_x11; screen_x11 = GDK_SCREEN_X11 (screen); fetch_net_wm_check_window (screen); if (screen_x11->need_refetch_wm_name) { /* Get the name of the window manager */ screen_x11->need_refetch_wm_name = FALSE; g_free (screen_x11->window_manager_name); screen_x11->window_manager_name = g_strdup ("unknown"); if (screen_x11->wmspec_check_window != None) { Atom type; gint format; gulong n_items; gulong bytes_after; guchar *name; name = NULL; XGetWindowProperty (GDK_DISPLAY_XDISPLAY (screen_x11->display), screen_x11->wmspec_check_window, gdk_x11_get_xatom_by_name_for_display (screen_x11->display, "_NET_WM_NAME"), 0, G_MAXLONG, False, gdk_x11_get_xatom_by_name_for_display (screen_x11->display, "UTF8_STRING"), &type, &format, &n_items, &bytes_after, (guchar **)&name); gdk_display_sync (screen_x11->display); gdk_error_trap_pop (); if (name != NULL) { g_free (screen_x11->window_manager_name); screen_x11->window_manager_name = g_strdup (name); XFree (name); } } } return GDK_SCREEN_X11 (screen)->window_manager_name; } typedef struct _NetWmSupportedAtoms NetWmSupportedAtoms; struct _NetWmSupportedAtoms { Atom *atoms; gulong n_atoms; }; /** * gdk_x11_screen_supports_net_wm_hint: * @screen: the relevant #GdkScreen. * @property: a property atom. * * This function is specific to the X11 backend of GDK, and indicates * whether the window manager supports a certain hint from the * Extended Window Manager Hints Specification. You can find this * specification on * http://www.freedesktop.org. * * When using this function, keep in mind that the window manager * can change over time; so you shouldn't use this function in * a way that impacts persistent application state. A common bug * is that your application can start up before the window manager * does when the user logs in, and before the window manager starts * gdk_x11_screen_supports_net_wm_hint() will return %FALSE for every property. * You can monitor the window_manager_changed signal on #GdkScreen to detect * a window manager change. * * Return value: %TRUE if the window manager supports @property * * Since: 2.2 **/ gboolean gdk_x11_screen_supports_net_wm_hint (GdkScreen *screen, GdkAtom property) { gulong i; GdkScreenX11 *screen_x11; NetWmSupportedAtoms *supported_atoms; GdkDisplay *display; g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE); screen_x11 = GDK_SCREEN_X11 (screen); display = screen_x11->display; supported_atoms = g_object_get_data (G_OBJECT (screen), "gdk-net-wm-supported-atoms"); if (!supported_atoms) { supported_atoms = g_new0 (NetWmSupportedAtoms, 1); g_object_set_data (G_OBJECT (screen), "gdk-net-wm-supported-atoms", supported_atoms); } fetch_net_wm_check_window (screen); if (screen_x11->wmspec_check_window == None) return FALSE; if (screen_x11->need_refetch_net_supported) { /* WM has changed since we last got the supported list, * refetch it. */ Atom type; gint format; gulong bytes_after; screen_x11->need_refetch_net_supported = FALSE; if (supported_atoms->atoms) XFree (supported_atoms->atoms); supported_atoms->atoms = NULL; supported_atoms->n_atoms = 0; XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), screen_x11->xroot_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTED"), 0, G_MAXLONG, False, XA_ATOM, &type, &format, &supported_atoms->n_atoms, &bytes_after, (guchar **)&supported_atoms->atoms); if (type != XA_ATOM) return FALSE; } if (supported_atoms->atoms == NULL) return FALSE; i = 0; while (i < supported_atoms->n_atoms) { if (supported_atoms->atoms[i] == gdk_x11_atom_to_xatom_for_display (display, property)) return TRUE; ++i; } return FALSE; } /** * gdk_net_wm_supports: * @property: a property atom. * * This function is specific to the X11 backend of GDK, and indicates * whether the window manager for the default screen supports a certain * hint from the Extended Window Manager Hints Specification. See * gdk_x11_screen_supports_net_wm_hint() for complete details. * * Return value: %TRUE if the window manager supports @property **/ gboolean gdk_net_wm_supports (GdkAtom property) { return gdk_x11_screen_supports_net_wm_hint (gdk_screen_get_default (), property); } static struct { const char *xsettings_name; const char *gdk_name; } settings_map[] = { { "Net/DoubleClickTime", "gtk-double-click-time" }, { "Net/DndDragThreshold", "gtk-dnd-drag-threshold" }, { "Gtk/CanChangeAccels", "gtk-can-change-accels" }, { "Gtk/ColorPalette", "gtk-color-palette" }, { "Gtk/FontName", "gtk-font-name" }, { "Gtk/IconSizes", "gtk-icon-sizes" }, { "Gtk/KeyThemeName", "gtk-key-theme-name" }, { "Gtk/ToolbarStyle", "gtk-toolbar-style" }, { "Gtk/ToolbarIconSize", "gtk-toolbar-icon-size" }, { "Gtk/IMPreeditStyle", "gtk-im-preedit-style" }, { "Gtk/IMStatusStyle", "gtk-im-status-style" }, { "Net/CursorBlink", "gtk-cursor-blink" }, { "Net/CursorBlinkTime", "gtk-cursor-blink-time" }, { "Net/ThemeName", "gtk-theme-name" } }; static void gdk_xsettings_notify_cb (const char *name, XSettingsAction action, XSettingsSetting *setting, void *data) { GdkEvent new_event; GdkScreen *screen = data; GdkScreenX11 *screen_x11 = data; int i; if (screen_x11->xsettings_in_init) return; new_event.type = GDK_SETTING; new_event.setting.window = gdk_screen_get_root_window (screen); new_event.setting.send_event = FALSE; new_event.setting.name = NULL; for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++) if (strcmp (settings_map[i].xsettings_name, name) == 0) { new_event.setting.name = (char *)settings_map[i].gdk_name; break; } if (!new_event.setting.name) return; switch (action) { case XSETTINGS_ACTION_NEW: new_event.setting.action = GDK_SETTING_ACTION_NEW; break; case XSETTINGS_ACTION_CHANGED: new_event.setting.action = GDK_SETTING_ACTION_CHANGED; break; case XSETTINGS_ACTION_DELETED: new_event.setting.action = GDK_SETTING_ACTION_DELETED; break; } gdk_event_put (&new_event); } static gboolean check_transform (const gchar *xsettings_name, GType src_type, GType dest_type) { if (!g_value_type_transformable (src_type, dest_type)) { g_warning ("Cannot tranform xsetting %s of type %s to type %s\n", xsettings_name, g_type_name (src_type), g_type_name (dest_type)); return FALSE; } else return TRUE; } /** * gdk_screen_get_setting: * @screen: the #GdkScreen where the setting is located * @name: the name of the setting * @value: location to store the value of the setting * * Retrieves a desktop-wide setting such as double-click time * for the #GdkScreen @screen. * * FIXME needs a list of valid settings here, or a link to * more information. * * Returns: %TRUE if the setting existed and a value was stored * in @value, %FALSE otherwise. * * Since: 2.2 **/ gboolean gdk_screen_get_setting (GdkScreen *screen, const gchar *name, GValue *value) { const char *xsettings_name = NULL; XSettingsResult result; XSettingsSetting *setting; GdkScreenX11 *screen_x11; gboolean success = FALSE; gint i; GValue tmp_val = { 0, }; g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE); screen_x11 = GDK_SCREEN_X11 (screen); for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++) if (strcmp (settings_map[i].gdk_name, name) == 0) { xsettings_name = settings_map[i].xsettings_name; break; } if (!xsettings_name) return FALSE; result = xsettings_client_get_setting (screen_x11->xsettings_client, xsettings_name, &setting); if (result != XSETTINGS_SUCCESS) return FALSE; switch (setting->type) { case XSETTINGS_TYPE_INT: if (check_transform (xsettings_name, G_TYPE_INT, G_VALUE_TYPE (value))) { g_value_init (&tmp_val, G_TYPE_INT); g_value_set_int (&tmp_val, setting->data.v_int); g_value_transform (&tmp_val, value); success = TRUE; } break; case XSETTINGS_TYPE_STRING: if (check_transform (xsettings_name, G_TYPE_STRING, G_VALUE_TYPE (value))) { g_value_init (&tmp_val, G_TYPE_STRING); g_value_set_string (&tmp_val, setting->data.v_string); g_value_transform (&tmp_val, value); success = TRUE; } break; case XSETTINGS_TYPE_COLOR: if (!check_transform (xsettings_name, GDK_TYPE_COLOR, G_VALUE_TYPE (value))) { GdkColor color; g_value_init (&tmp_val, GDK_TYPE_COLOR); color.pixel = 0; color.red = setting->data.v_color.red; color.green = setting->data.v_color.green; color.blue = setting->data.v_color.blue; g_value_set_boxed (&tmp_val, &color); g_value_transform (&tmp_val, value); success = TRUE; } break; } g_value_unset (&tmp_val); xsettings_setting_free (setting); return success; } static GdkFilterReturn gdk_xsettings_client_event_filter (GdkXEvent *xevent, GdkEvent *event, gpointer data) { GdkScreenX11 *screen = data; if (xsettings_client_process_event (screen->xsettings_client, (XEvent *)xevent)) return GDK_FILTER_REMOVE; else return GDK_FILTER_CONTINUE; } static void gdk_xsettings_watch_cb (Window window, Bool is_start, long mask, void *cb_data) { GdkWindow *gdkwin; GdkScreen *screen = cb_data; gdkwin = gdk_window_lookup_for_display (gdk_screen_get_display (screen), window); if (is_start) { if (!gdkwin) gdkwin = gdk_window_foreign_new_for_display (gdk_screen_get_display (screen), window); else g_object_ref (gdkwin); gdk_window_add_filter (gdkwin, gdk_xsettings_client_event_filter, screen); } else { g_assert (gdkwin); gdk_window_remove_filter (gdkwin, gdk_xsettings_client_event_filter, screen); g_object_unref (gdkwin); } }