AuroraMiddleware/gtk
1
0
Fork 1
mirror of https://gitlab.gnome.org/GNOME/gtk.git synced 2024-09-30 02:57:38 +00:00
Code Issues Projects Releases Wiki Activity
19cd4d6af8
gtk/gdk/x11/gdkevents-x11.c
Alexander Larsson 19cd4d6af8 Revert "Convert all pending X events in _gdk_events_queue" 
This reverts commit 7cc15ec6ea1504133dfe6febbdb12615550bb966.

Its risky to convert all the events in a go like this, as it
increases the out-of-order issues. It also isn't a full solution
to the motion hint issue as it will only work for the events
we happen to convert. It would be better to use serials to
handle motion hinting.
2009-04-02 10:15:26 +02:00

3167 lines
86 KiB
C
Raw Blame History

/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-2007 Peter Mattis, Spencer Kimball,
* Josh MacDonald, Ryan Lortie
*
* 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 1997-2007. 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 "config.h"
#include "gdk.h"
#include "gdkprivate-x11.h"
#include "gdkinternals.h"
#include "gdkx.h"
#include "gdkscreen-x11.h"
#include "gdkdisplay-x11.h"
#include "gdkasync.h"
#include "gdkkeysyms.h"
#include "xsettings-client.h"
#include <string.h>
#include "gdkinputprivate.h"
#include "gdksettings.c"
#include "gdkalias.h"
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#ifdef HAVE_XSYNC
#include <X11/extensions/sync.h>
#endif
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
#include <X11/Xatom.h>
typedef struct _GdkIOClosure GdkIOClosure;
typedef struct _GdkDisplaySource GdkDisplaySource;
typedef struct _GdkEventTypeX11 GdkEventTypeX11;
struct _GdkIOClosure
{
GdkInputFunction function;
GdkInputCondition condition;
GDestroyNotify notify;
gpointer data;
};
struct _GdkDisplaySource
{
GSource source;
GdkDisplay *display;
GPollFD event_poll_fd;
};
struct _GdkEventTypeX11
{
gint base;
gint n_events;
};
/*
* 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 Bool 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 *
*********************************************/
static void
refcounted_grab_server (Display *xdisplay)
{
GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);
gdk_x11_display_grab (display);
}
static void
refcounted_ungrab_server (Display *xdisplay)
{
GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);
gdk_x11_display_ungrab (display);
}
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_with_grab_funcs (screen_x11->xdisplay,
screen_x11->screen_num,
gdk_xsettings_notify_cb,
gdk_xsettings_watch_cb,
screen,
refcounted_grab_server,
refcounted_ungrab_server);
screen_x11->xsettings_in_init = FALSE;
}
void
_gdk_x11_events_uninit_screen (GdkScreen *screen)
{
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
if (screen_x11->xsettings_client)
{
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_static_string ("WM_PROTOCOLS"),
gdk_wm_protocols_filter,
NULL);
}
void
_gdk_events_uninit (GdkDisplay *display)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
if (display_x11->event_source)
{
display_sources = g_list_remove (display_sources,
display_x11->event_source);
g_source_destroy (display_x11->event_source);
g_source_unref (display_x11->event_source);
display_x11->event_source = 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.
* See gdk_window_add_filter() if you are interested in filtering other
* types of events.
*
* 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_append (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 <structfield>message_type</structfield> 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
do_net_wm_state_changes (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkWindowState old_state;
if (GDK_WINDOW_DESTROYED (window) ||
gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
return;
old_state = gdk_window_get_state (window);
/* For found_sticky to remain TRUE, we have to also be on desktop
* 0xFFFFFFFF
*/
if (old_state & GDK_WINDOW_STATE_STICKY)
{
if (!(toplevel->have_sticky && toplevel->on_all_desktops))
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_STICKY,
0);
}
else
{
if (toplevel->have_sticky || toplevel->on_all_desktops)
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_STICKY);
}
if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
{
if (!toplevel->have_fullscreen)
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_FULLSCREEN,
0);
}
else
{
if (toplevel->have_fullscreen)
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_FULLSCREEN);
}
/* Our "maximized" means both vertical and horizontal; if only one,
* we don't expose that via GDK
*/
if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
{
if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_MAXIMIZED,
0);
}
else
{
if (toplevel->have_maxvert && toplevel->have_maxhorz)
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_MAXIMIZED);
}
}
static void
gdk_check_wm_desktop_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
gulong *desktop;
type = None;
gdk_error_trap_push ();
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
0, G_MAXLONG, False, XA_CARDINAL, &type,
&format, &nitems,
&bytes_after, &data);
gdk_error_trap_pop ();
if (type != None)
{
desktop = (gulong *)data;
toplevel->on_all_desktops = (*desktop == 0xFFFFFFFF);
XFree (desktop);
}
else
toplevel->on_all_desktops = FALSE;
do_net_wm_state_changes (window);
}
static void
gdk_check_wm_state_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
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;
type = None;
gdk_error_trap_push ();
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
&bytes_after, &data);
gdk_error_trap_pop ();
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");
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;
++i;
}
XFree (atoms);
}
/* When have_sticky is turned on, we have to check the DESKTOP property
* as well.
*/
if (toplevel->have_sticky && !had_sticky)
gdk_check_wm_desktop_changed (window);
else
do_net_wm_state_changes (window);
}
#define HAS_FOCUS(toplevel) \
((toplevel)->has_focus || (toplevel)->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 gboolean
set_screen_from_root (GdkDisplay *display,
GdkEvent *event,
Window xrootwin)
{
GdkScreen *screen;
screen = _gdk_x11_display_screen_for_xrootwin (display, xrootwin);
if (screen)
{
gdk_event_set_screen (event, screen);
return TRUE;
}
return FALSE;
}
static void
translate_key_event (GdkDisplay *display,
GdkEvent *event,
XEvent *xevent)
{
GdkKeymap *keymap = gdk_keymap_get_for_display (display);
gunichar c = 0;
gchar 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);
_gdk_keymap_add_virtual_modifiers (keymap, &event->key.state);
event->key.is_modifier = _gdk_keymap_key_is_modifier (keymap, event->key.hardware_keycode);
/* 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;
}
/**
* gdk_x11_register_standard_event_type:
* @display: a #GdkDisplay
* @event_base: first event type code to register
* @n_events: number of event type codes to register
*
* Registers interest in receiving extension events with type codes
* between @event_base and <literal>event_base + n_events - 1</literal>.
* The registered events must have the window field in the same place
* as core X events (this is not the case for e.g. XKB extension events).
*
* If an event type is registered, events of this type will go through
* global and window-specific filters (see gdk_window_add_filter()).
* Unregistered events will only go through global filters.
* GDK may register the events of some X extensions on its own.
*
* This function should only be needed in unusual circumstances, e.g.
* when filtering XInput extension events on the root window.
*
* Since: 2.4
**/
void
gdk_x11_register_standard_event_type (GdkDisplay *display,
gint event_base,
gint n_events)
{
GdkEventTypeX11 *event_type;
GdkDisplayX11 *display_x11;
display_x11 = GDK_DISPLAY_X11 (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);
}
/* Return the window this has to do with, if any, rather
* than the frame or root window that was selecting
* for substructure
*/
static void
get_real_window (GdkDisplay *display,
XEvent *event,
Window *event_window,
Window *filter_window)
{
/* Core events all have an event->xany.window field, but that's
* not true for extension events
*/
if (event->type >= KeyPress &&
event->type <= MappingNotify)
{
*filter_window = event->xany.window;
switch (event->type)
{
case CreateNotify:
*event_window = event->xcreatewindow.window;
break;
case DestroyNotify:
*event_window = event->xdestroywindow.window;
break;
case UnmapNotify:
*event_window = event->xunmap.window;
break;
case MapNotify:
*event_window = event->xmap.window;
break;
case MapRequest:
*event_window = event->xmaprequest.window;
break;
case ReparentNotify:
*event_window = event->xreparent.window;
break;
case ConfigureNotify:
*event_window = event->xconfigure.window;
break;
case ConfigureRequest:
*event_window = event->xconfigurerequest.window;
break;
case GravityNotify:
*event_window = event->xgravity.window;
break;
case CirculateNotify:
*event_window = event->xcirculate.window;
break;
case CirculateRequest:
*event_window = event->xcirculaterequest.window;
break;
default:
*event_window = event->xany.window;
}
}
else
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
GSList *tmp_list;
for (tmp_list = display_x11->event_types;
tmp_list;
tmp_list = tmp_list->next)
{
GdkEventTypeX11 *event_type = tmp_list->data;
if (event->type >= event_type->base &&
event->type < event_type->base + event_type->n_events)
{
*event_window = event->xany.window;
*filter_window = event->xany.window;
return;
}
}
*event_window = None;
*filter_window = None;
}
}
#ifdef G_ENABLE_DEBUG
static const char notify_modes[][19] = {
"NotifyNormal",
"NotifyGrab",
"NotifyUngrab",
"NotifyWhileGrabbed"
};
static const char notify_details[][23] = {
"NotifyAncestor",
"NotifyVirtual",
"NotifyInferior",
"NotifyNonlinear",
"NotifyNonlinearVirtual",
"NotifyPointer",
"NotifyPointerRoot",
"NotifyDetailNone"
};
#endif
static void
set_user_time (GdkWindow *window,
GdkEvent *event)
{
g_return_if_fail (event != NULL);
window = gdk_window_get_toplevel (event->client.window);
g_return_if_fail (GDK_IS_WINDOW (window));
/* If an event doesn't have a valid timestamp, we shouldn't use it
* to update the latest user interaction time.
*/
if (gdk_event_get_time (event) != GDK_CURRENT_TIME)
gdk_x11_window_set_user_time (gdk_window_get_toplevel (window),
gdk_event_get_time (event));
}
static gboolean
is_parent_of (GdkWindow *parent,
GdkWindow *child)
{
GdkWindow *w;
w = child;
while (w != NULL)
{
if (w == parent)
return TRUE;
w = gdk_window_get_parent (w);
}
return FALSE;
}
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;
gboolean return_val;
GdkScreen *screen = NULL;
GdkScreenX11 *screen_x11 = NULL;
GdkToplevelX11 *toplevel = NULL;
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
Window xwindow, filter_xwindow;
int exposure_x_offset = 0;
int exposure_y_offset = 0;
GdkWindow *unref_pixmap = NULL;
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;
}
}
/* Find the GdkWindow that this event relates to.
* Basically this means substructure events
* are reported same as structure events
*/
get_real_window (display, xevent, &xwindow, &filter_xwindow);
window = gdk_window_lookup_for_display (display, xwindow);
/* We may receive events such as NoExpose/GraphicsExpose
* and ShmCompletion for pixmaps
*/
if (window && !GDK_IS_WINDOW (window))
{
GdkPixmapObject *pixmap = (GdkPixmapObject *)window;
if ((xevent->type == GraphicsExpose ||
xevent->type == NoExpose) &&
GDK_IS_PIXMAP (window) &&
pixmap->backing_for != NULL)
{
/* Unref the pixmap once for each finished set of GraphicsExposes */
if (xevent->type == NoExpose ||
xevent->xgraphicsexpose.count == 0)
unref_pixmap = window;
window = g_object_ref (pixmap->backing_for);
exposure_x_offset = pixmap->backing_x_offset;
exposure_y_offset = pixmap->backing_y_offset;
}
else
window = NULL;
}
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 (filter_xwindow == xwindow)
filter_window = window;
else
{
filter_window = gdk_window_lookup_for_display (display, filter_xwindow);
if (filter_window && !GDK_IS_WINDOW (filter_window))
filter_window = NULL;
}
if (window)
{
screen = GDK_WINDOW_SCREEN (window);
screen_x11 = GDK_SCREEN_X11 (screen);
toplevel = _gdk_x11_window_get_toplevel (window);
}
if (window != NULL)
{
/* Apply keyboard grabs to non-native windows */
if (/* Is key event */
(xevent->type == KeyPress || xevent->type == KeyRelease) &&
/* And we have a grab */
display->keyboard_grab.window != NULL &&
(
/* The window is not a descendant of the grabbed window */
!is_parent_of ((GdkWindow *)display->keyboard_grab.window, window) ||
/* Or owner event is false */
!display->keyboard_grab.owner_events
)
)
{
/* Report key event against grab window */
window_private = display->keyboard_grab.window;
window = (GdkWindow *) window_private;
}
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 (toplevel && xwindow == toplevel->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;
switch (xevent->type)
{
case KeyPress:
if (window_private == NULL)
{
return_val = FALSE;
break;
}
translate_key_event (display, event, xevent);
set_user_time (window, event);
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;
event->scroll.y = xevent->xbutton.y;
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;
if (!set_screen_from_root (display, event, xevent->xbutton.root))
{
return_val = FALSE;
break;
}
break;
default:
event->button.type = GDK_BUTTON_PRESS;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x;
event->button.y = xevent->xbutton.y;
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;
if (!set_screen_from_root (display, event, xevent->xbutton.root))
{
return_val = FALSE;
break;
}
break;
}
set_user_time (window, event);
/* We treat button presses as scroll wheel events, so don't expose
* this grab to gtk, as it will be immediately released. If we do
* expose it there is a short time before we receive the Release
* where a client-side generated pointer motion event could be handled
* as if the grab was effect.
*/
if (!(xevent->xbutton.button == 4 || xevent->xbutton.button == 5 ||
xevent->xbutton.button == 6 || xevent->xbutton.button == 7))
_gdk_xgrab_check_button_event (window, xevent);
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;
event->button.y = xevent->xbutton.y;
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;
if (!set_screen_from_root (display, event, xevent->xbutton.root))
return_val = FALSE;
_gdk_xgrab_check_button_event (window, xevent);
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;
event->motion.y = xevent->xmotion.y;
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;
if (!set_screen_from_root (display, event, xevent->xbutton.root))
{
return_val = FALSE;
break;
}
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;
}
if (!set_screen_from_root (display, event, xevent->xbutton.root))
{
return_val = FALSE;
break;
}
/* Handle focusing (in the case where no window manager is running */
if (toplevel && xevent->xcrossing.detail != NotifyInferior)
{
toplevel->has_pointer = TRUE;
if (xevent->xcrossing.focus && !toplevel->has_focus_window)
{
gboolean had_focus = HAS_FOCUS (toplevel);
toplevel->has_pointer_focus = TRUE;
if (HAS_FOCUS (toplevel) != 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;
event->crossing.y = xevent->xcrossing.y;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_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;
}
if (!set_screen_from_root (display, event, xevent->xbutton.root))
{
return_val = FALSE;
break;
}
/* Handle focusing (in the case where no window manager is running */
if (toplevel && xevent->xcrossing.detail != NotifyInferior)
{
toplevel->has_pointer = FALSE;
if (xevent->xcrossing.focus && !toplevel->has_focus_window)
{
gboolean had_focus = HAS_FOCUS (toplevel);
toplevel->has_pointer_focus = FALSE;
if (HAS_FOCUS (toplevel) != 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;
event->crossing.y = xevent->xcrossing.y;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_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 (toplevel)
{
gboolean had_focus = HAS_FOCUS (toplevel);
switch (xevent->xfocus.detail)
{
case NotifyAncestor:
case NotifyVirtual:
/* When the focus moves from an ancestor of the window to
* the window or a descendent of the window, *and* the
* pointer is inside the window, then we were previously
* receiving keystroke events in the has_pointer_focus
* case and are now receiving them in the
* has_focus_window case.
*/
if (toplevel->has_pointer &&
xevent->xfocus.mode != NotifyGrab &&
xevent->xfocus.mode != NotifyUngrab)
toplevel->has_pointer_focus = FALSE;
/* fall through */
case NotifyNonlinear:
case NotifyNonlinearVirtual:
if (xevent->xfocus.mode != NotifyGrab &&
xevent->xfocus.mode != NotifyUngrab)
toplevel->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)
toplevel->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 &&
xevent->xfocus.mode != NotifyUngrab)
toplevel->has_pointer_focus = TRUE;
break;
case NotifyInferior:
case NotifyPointerRoot:
case NotifyDetailNone:
break;
}
if (HAS_FOCUS (toplevel) != 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 (toplevel)
{
gboolean had_focus = HAS_FOCUS (toplevel);
switch (xevent->xfocus.detail)
{
case NotifyAncestor:
case NotifyVirtual:
/* When the focus moves from the window or a descendent
* of the window to an ancestor of the window, *and* the
* pointer is inside the window, then we were previously
* receiving keystroke events in the has_focus_window
* case and are now receiving them in the
* has_pointer_focus case.
*/
if (toplevel->has_pointer &&
xevent->xfocus.mode != NotifyGrab &&
xevent->xfocus.mode != NotifyUngrab)
toplevel->has_pointer_focus = TRUE;
/* fall through */
case NotifyNonlinear:
case NotifyNonlinearVirtual:
if (xevent->xfocus.mode != NotifyGrab &&
xevent->xfocus.mode != NotifyUngrab)
toplevel->has_focus_window = FALSE;
if (xevent->xfocus.mode != NotifyWhileGrabbed)
toplevel->has_focus = FALSE;
break;
case NotifyPointer:
if (xevent->xfocus.mode != NotifyGrab &&
xevent->xfocus.mode != NotifyUngrab)
toplevel->has_pointer_focus = FALSE;
break;
case NotifyInferior:
case NotifyPointerRoot:
case NotifyDetailNone:
break;
}
if (HAS_FOCUS (toplevel) != 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;
expose_rect.y = xevent->xexpose.y;
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 + exposure_x_offset;
expose_rect.y = xevent->xgraphicsexpose.y + exposure_y_offset;
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)
{
window_private->width = xevent->xconfigure.width;
window_private->height = xevent->xconfigure.height;
_gdk_x11_drawable_update_size (window_private->impl);
_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);
#ifdef HAVE_XSYNC
if (toplevel && display_x11->use_sync && !XSyncValueIsZero (toplevel->pending_counter_value))
{
toplevel->current_counter_value = toplevel->pending_counter_value;
XSyncIntToValue (&toplevel->pending_counter_value, 0);
}
#endif
if (!window ||
xevent->xconfigure.event != xevent->xconfigure.window ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
return_val = FALSE;
else
{
event->configure.type = GDK_CONFIGURE;
event->configure.window = window;
event->configure.width = xevent->xconfigure.width;
event->configure.height = xevent->xconfigure.height;
if (!xevent->xconfigure.send_event &&
!xevent->xconfigure.override_redirect &&
!GDK_WINDOW_DESTROYED (window))
{
gint tx = 0;
gint ty = 0;
Window child_window = 0;
gdk_error_trap_push ();
if (XTranslateCoordinates (GDK_DRAWABLE_XDISPLAY (window),
GDK_DRAWABLE_XID (window),
screen_x11->xroot_window,
0, 0,
&tx, &ty,
&child_window))
{
event->configure.x = tx;
event->configure.y = ty;
}
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;
window_private->width = xevent->xconfigure.width;
window_private->height = xevent->xconfigure.height;
_gdk_window_update_size (window);
_gdk_x11_drawable_update_size (window_private->impl);
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;
}
/* We compare with the serial of the last time we mapped the
* window to avoid refetching properties that we set ourselves
*/
if (toplevel &&
xevent->xproperty.serial >= toplevel->map_serial)
{
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
gdk_check_wm_state_changed (window);
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
gdk_check_wm_desktop_changed (window);
}
if (window_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;
tmp_list = tmp_list->next;
if (filter->type == message_type)
{
result = (*filter->function) (xevent, event, filter->data);
if (result != GDK_FILTER_CONTINUE)
break;
}
}
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 XkbNewKeyboardNotify:
case XkbMapNotify:
_gdk_keymap_keys_changed (display);
return_val = FALSE;
break;
case XkbStateNotify:
_gdk_keymap_state_changed (display, xevent);
break;
}
}
else
#endif
#ifdef HAVE_XFIXES
if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
{
XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
_gdk_x11_screen_process_owner_change (screen, xevent);
event->owner_change.type = GDK_OWNER_CHANGE;
event->owner_change.window = window;
event->owner_change.owner = selection_notify->owner;
event->owner_change.reason = selection_notify->subtype;
event->owner_change.selection =
gdk_x11_xatom_to_atom_for_display (display,
selection_notify->selection);
event->owner_change.time = selection_notify->timestamp;
event->owner_change.selection_time = selection_notify->selection_timestamp;
return_val = TRUE;
}
else
#endif
#ifdef HAVE_RANDR
if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
xevent->type - display_x11->xrandr_event_base == RRNotify)
{
if (screen)
_gdk_x11_screen_size_changed (screen, xevent);
}
else
#endif
#if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
if (display_x11->have_xdamage && window_private && window_private->composited &&
xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
{
XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
XserverRegion repair;
GdkRectangle rect;
rect.x = window_private->x + damage_event->area.x;
rect.y = window_private->y + damage_event->area.y;
rect.width = damage_event->area.width;
rect.height = damage_event->area.height;
repair = XFixesCreateRegion (display_x11->xdisplay,
&damage_event->area, 1);
XDamageSubtract (display_x11->xdisplay,
window_impl->damage,
repair, None);
XFixesDestroyRegion (display_x11->xdisplay, repair);
if (window_private->parent != NULL)
_gdk_window_process_expose (GDK_WINDOW (window_private->parent),
damage_event->serial, &rect);
return_val = TRUE;
}
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);
if (unref_pixmap)
g_object_unref (unref_pixmap);
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;
Atom atom;
if (!win)
return GDK_FILTER_REMOVE;
display = GDK_WINDOW_DISPLAY (win);
atom = (Atom)xevent->xclient.data.l[0];
if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
{
/* The delete window request specifies a window
* to delete. We don't actually destroy the
* window because "it is only a request". (The
* window might contain vital data that the
* program does not want destroyed). Instead
* the event is passed along to the program,
* which should then destroy the window.
*/
GDK_NOTE (EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window));
event->any.type = GDK_DELETE;
gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
return GDK_FILTER_TRANSLATE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
GdkWindowObject *private = (GdkWindowObject *)win;
/* There is no way of knowing reliably whether we are viewable;
* _gdk_x11_set_input_focus_safe() traps errors asynchronously.
*/
if (toplevel && private->accept_focus)
_gdk_x11_set_input_focus_safe (display, toplevel->focus_window,
RevertToParent,
xevent->xclient.data.l[1]);
return GDK_FILTER_REMOVE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
!_gdk_x11_display_is_root_window (display,
xevent->xclient.window))
{
XClientMessageEvent xclient = xevent->xclient;
xclient.window = GDK_WINDOW_XROOTWIN (win);
XSendEvent (GDK_WINDOW_XDISPLAY (win),
xclient.window,
False,
SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
return GDK_FILTER_REMOVE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
GDK_DISPLAY_X11 (display)->use_sync)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
if (toplevel)
{
#ifdef HAVE_XSYNC
XSyncIntsToValue (&toplevel->pending_counter_value,
xevent->xclient.data.l[2],
xevent->xclient.data.l[3]);
#endif
}
return GDK_FILTER_REMOVE;
}
return GDK_FILTER_CONTINUE;
}
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;
_gdk_windowing_got_event (display, node, event);
}
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 client message to.
*
* On X11, sends an X ClientMessage event to a given window. On
* Windows, sends a message registered with the name
* GDK_WIN32_CLIENT_MESSAGE.
*
* This could be used for communicating between different
* applications, though the amount of data is limited to 20 bytes on
* X11, and to just four bytes on Windows.
*
* 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 */
static 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, "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.
*
* On X11, 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.
*
* On Windows, broadcasts a message registered with the name
* GDK_WIN32_CLIENT_MESSAGE to all top-level windows. The amount of
* data is limited to one long, i.e. four bytes.
*
* 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;
guchar *data;
Window *xwindow;
GTimeVal tv;
screen_x11 = GDK_SCREEN_X11 (screen);
display = screen_x11->display;
g_return_if_fail (GDK_DISPLAY_X11 (display)->trusted_client);
g_get_current_time (&tv);
if (ABS (tv.tv_sec - screen_x11->last_wmspec_check_time) < 15)
return; /* we've checked recently */
screen_x11->last_wmspec_check_time = tv.tv_sec;
data = NULL;
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, &data);
if (type != XA_WINDOW)
{
if (data)
XFree (data);
return;
}
xwindow = (Window *)data;
if (screen_x11->wmspec_check_window == *xwindow)
{
XFree (xwindow);
return;
}
gdk_error_trap_push ();
/* Find out if this WM goes away, so we can reset everything. */
XSelectInput (screen_x11->xdisplay, *xwindow, StructureNotifyMask);
gdk_display_sync (display);
if (gdk_error_trap_pop () == Success)
{
screen_x11->wmspec_check_window = *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));
}
XFree (xwindow);
}
/**
* 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);
if (!G_LIKELY (GDK_DISPLAY_X11 (screen_x11->display)->trusted_client))
return screen_x11->window_manager_name;
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;
gchar *name;
name = NULL;
gdk_error_trap_push ();
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;
};
static void
cleanup_atoms(gpointer data)
{
NetWmSupportedAtoms *supported_atoms = data;
if (supported_atoms->atoms)
XFree (supported_atoms->atoms);
g_free (supported_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
* <ulink url="http://www.freedesktop.org">http://www.freedesktop.org</ulink>.
*
* 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;
if (!G_LIKELY (GDK_DISPLAY_X11 (display)->trusted_client))
return FALSE;
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_full (G_OBJECT (screen), "gdk-net-wm-supported-atoms", supported_atoms, cleanup_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 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 < GDK_SETTINGS_N_ELEMENTS() ; i++)
if (strcmp (GDK_SETTINGS_X_NAME (i), name) == 0)
{
new_event.setting.name = (char*) GDK_SETTINGS_GDK_NAME (i);
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 transform 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 = NULL;
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 < GDK_SETTINGS_N_ELEMENTS(); i++)
if (strcmp (GDK_SETTINGS_GDK_NAME (i), name) == 0)
{
xsettings_name = GDK_SETTINGS_X_NAME (i);
break;
}
if (!xsettings_name)
goto out;
result = xsettings_client_get_setting (screen_x11->xsettings_client,
xsettings_name, &setting);
if (result != XSETTINGS_SUCCESS)
goto out;
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);
out:
if (setting)
xsettings_setting_free (setting);
if (success)
return TRUE;
else
return _gdk_x11_get_xft_setting (screen, name, value);
}
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 Bool
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)
g_object_ref (gdkwin);
else
{
gdkwin = gdk_window_foreign_new_for_display (gdk_screen_get_display (screen), window);
/* gdk_window_foreign_new_for_display() can fail and return NULL if the
* window has already been destroyed.
*/
if (!gdkwin)
return False;
}
gdk_window_add_filter (gdkwin, gdk_xsettings_client_event_filter, screen);
}
else
{
if (!gdkwin)
{
/* gdkwin should not be NULL here, since if starting the watch succeeded
* we have a reference on the window. It might mean that the caller didn't
* remove the watch when it got a DestroyNotify event. Or maybe the
* caller ignored the return value when starting the watch failed.
*/
g_warning ("gdk_xsettings_watch_cb(): Couldn't find window to unwatch");
return False;
}
gdk_window_remove_filter (gdkwin, gdk_xsettings_client_event_filter, screen);
g_object_unref (gdkwin);
}
return True;
}
void
_gdk_windowing_event_data_copy (const GdkEvent *src,
GdkEvent *dst)
{
}
void
_gdk_windowing_event_data_free (GdkEvent *event)
{
}
#define __GDK_EVENTS_X11_C__
#include "gdkaliasdef.c"
Reference in New Issue View Git Blame Copy Permalink