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gtk2/gdk/x11/gdkdisplay-x11.c
Alexander Larsson 26cbf87d7d New approach for grab tracking code 
We try to track the exact grab state, i.e. whats valid on the client
now and whats comming soon via the xserver roundtrip (and when).
2009-04-02 10:15:30 +02:00

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/* GDK - The GIMP Drawing Kit
* gdkdisplay-x11.c
*
* Copyright 2001 Sun Microsystems Inc.
* Copyright (C) 2004 Nokia Corporation
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <glib.h>
#include "gdkx.h"
#include "gdkasync.h"
#include "gdkdisplay.h"
#include "gdkdisplay-x11.h"
#include "gdkscreen.h"
#include "gdkscreen-x11.h"
#include "gdkinternals.h"
#include "gdkinputprivate.h"
#include "xsettings-client.h"
#include "gdkalias.h"
#include <X11/Xatom.h>
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif
#ifdef HAVE_SHAPE_EXT
#include <X11/extensions/shape.h>
#endif
#ifdef HAVE_XCOMPOSITE
#include <X11/extensions/Xcomposite.h>
#endif
#ifdef HAVE_XDAMAGE
#include <X11/extensions/Xdamage.h>
#endif
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
static void gdk_display_x11_dispose (GObject *object);
static void gdk_display_x11_finalize (GObject *object);
#ifdef HAVE_X11R6
static void gdk_internal_connection_watch (Display *display,
XPointer arg,
gint fd,
gboolean opening,
XPointer *watch_data);
#endif /* HAVE_X11R6 */
/* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
* but including them here has the side-effect of getting them
* into the internal Xlib cache
*/
static const char *const precache_atoms[] = {
"UTF8_STRING",
"WM_CLIENT_LEADER",
"WM_DELETE_WINDOW",
"WM_ICON_NAME",
"WM_LOCALE_NAME",
"WM_NAME",
"WM_PROTOCOLS",
"WM_TAKE_FOCUS",
"WM_WINDOW_ROLE",
"_NET_ACTIVE_WINDOW",
"_NET_CURRENT_DESKTOP",
"_NET_FRAME_EXTENTS",
"_NET_STARTUP_ID",
"_NET_WM_CM_S0",
"_NET_WM_DESKTOP",
"_NET_WM_ICON",
"_NET_WM_ICON_NAME",
"_NET_WM_NAME",
"_NET_WM_PID",
"_NET_WM_PING",
"_NET_WM_STATE",
"_NET_WM_STATE_ABOVE",
"_NET_WM_STATE_BELOW",
"_NET_WM_STATE_FULLSCREEN",
"_NET_WM_STATE_MODAL",
"_NET_WM_STATE_MAXIMIZED_VERT",
"_NET_WM_STATE_MAXIMIZED_HORZ",
"_NET_WM_STATE_SKIP_TASKBAR",
"_NET_WM_STATE_SKIP_PAGER",
"_NET_WM_STATE_STICKY",
"_NET_WM_SYNC_REQUEST",
"_NET_WM_SYNC_REQUEST_COUNTER",
"_NET_WM_WINDOW_TYPE",
"_NET_WM_WINDOW_TYPE_NORMAL",
"_NET_WM_USER_TIME",
"_NET_VIRTUAL_ROOTS"
};
G_DEFINE_TYPE (GdkDisplayX11, _gdk_display_x11, GDK_TYPE_DISPLAY)
static void
_gdk_display_x11_class_init (GdkDisplayX11Class * class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->dispose = gdk_display_x11_dispose;
object_class->finalize = gdk_display_x11_finalize;
}
static void
_gdk_display_x11_init (GdkDisplayX11 *display)
{
}
/**
* gdk_display_open:
* @display_name: the name of the display to open
* @returns: a #GdkDisplay, or %NULL if the display
* could not be opened.
*
* Opens a display.
*
* Since: 2.2
*/
GdkDisplay *
gdk_display_open (const gchar *display_name)
{
Display *xdisplay;
GdkDisplay *display;
GdkDisplayX11 *display_x11;
GdkWindowAttr attr;
gint argc;
gchar *argv[1];
const char *sm_client_id;
XClassHint *class_hint;
gulong pid;
gint i;
#if defined(HAVE_XFIXES) || defined(HAVE_SHAPE_EXT)
gint ignore;
gint maj, min;
#endif
xdisplay = XOpenDisplay (display_name);
if (!xdisplay)
return NULL;
display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
display_x11 = GDK_DISPLAY_X11 (display);
display_x11->use_xshm = TRUE;
display_x11->xdisplay = xdisplay;
#ifdef HAVE_X11R6
/* Set up handlers for Xlib internal connections */
XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
#endif /* HAVE_X11R6 */
_gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
/* RandR must be initialized before we initialize the screens */
display_x11->have_randr13 = FALSE;
#ifdef HAVE_RANDR
if (XRRQueryExtension (display_x11->xdisplay,
&display_x11->xrandr_event_base, &ignore))
{
int major, minor;
XRRQueryVersion (display_x11->xdisplay, &major, &minor);
if ((major == 1 && minor >= 3) || major > 1)
display_x11->have_randr13 = TRUE;
gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
}
#endif
/* initialize the display's screens */
display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
display_x11->screens[i] = _gdk_x11_screen_new (display, i);
/* We need to initialize events after we have the screen
* structures in places
*/
for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
_gdk_x11_events_init_screen (display_x11->screens[i]);
/*set the default screen */
display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
attr.window_type = GDK_WINDOW_TOPLEVEL;
attr.wclass = GDK_INPUT_OUTPUT;
attr.x = 10;
attr.y = 10;
attr.width = 10;
attr.height = 10;
attr.event_mask = 0;
display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
&attr, GDK_WA_X | GDK_WA_Y);
(_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
display_x11->leader_window_title_set = FALSE;
display_x11->have_render = GDK_UNKNOWN;
#ifdef HAVE_XFIXES
if (XFixesQueryExtension (display_x11->xdisplay,
&display_x11->xfixes_event_base,
&ignore))
{
display_x11->have_xfixes = TRUE;
gdk_x11_register_standard_event_type (display,
display_x11->xfixes_event_base,
XFixesNumberEvents);
}
else
#endif
display_x11->have_xfixes = FALSE;
#ifdef HAVE_XCOMPOSITE
if (XCompositeQueryExtension (display_x11->xdisplay,
&ignore, &ignore))
{
int major, minor;
XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
/* Prior to Composite version 0.4, composited windows clipped their
* parents, so you had to use IncludeInferiors to draw to the parent
* This isn't useful for our purposes, so require 0.4
*/
display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
}
else
#endif
display_x11->have_xcomposite = FALSE;
#ifdef HAVE_XDAMAGE
if (XDamageQueryExtension (display_x11->xdisplay,
&display_x11->xdamage_event_base,
&ignore))
{
display_x11->have_xdamage = TRUE;
gdk_x11_register_standard_event_type (display,
display_x11->xdamage_event_base,
XDamageNumberEvents);
}
else
#endif
display_x11->have_xdamage = FALSE;
display_x11->have_shapes = FALSE;
display_x11->have_input_shapes = FALSE;
#ifdef HAVE_SHAPE_EXT
if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &ignore, &ignore))
{
display_x11->have_shapes = TRUE;
#ifdef ShapeInput
if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
display_x11->have_input_shapes = (maj == 1 && min >= 1);
#endif
}
#endif
display_x11->trusted_client = TRUE;
{
Window root, child;
int rootx, rooty, winx, winy;
unsigned int xmask;
gdk_error_trap_push ();
XQueryPointer (display_x11->xdisplay,
GDK_SCREEN_X11 (display_x11->default_screen)->xroot_window,
&root, &child, &rootx, &rooty, &winx, &winy, &xmask);
gdk_flush ();
if (G_UNLIKELY (gdk_error_trap_pop () == BadWindow))
{
g_warning ("Connection to display %s appears to be untrusted. Pointer and keyboard grabs and inter-client communication may not work as expected.", gdk_display_get_name (display));
display_x11->trusted_client = FALSE;
}
}
if (_gdk_synchronize)
XSynchronize (display_x11->xdisplay, True);
class_hint = XAllocClassHint();
class_hint->res_name = g_get_prgname ();
class_hint->res_class = (char *)gdk_get_program_class ();
/* XmbSetWMProperties sets the RESOURCE_NAME environment variable
* from argv[0], so we just synthesize an argument array here.
*/
argc = 1;
argv[0] = g_get_prgname ();
XmbSetWMProperties (display_x11->xdisplay,
display_x11->leader_window,
NULL, NULL, argv, argc, NULL, NULL,
class_hint);
XFree (class_hint);
sm_client_id = _gdk_get_sm_client_id ();
if (sm_client_id)
_gdk_windowing_display_set_sm_client_id (display, sm_client_id);
pid = getpid ();
XChangeProperty (display_x11->xdisplay,
display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
/* We don't yet know a valid time. */
display_x11->user_time = 0;
#ifdef HAVE_XKB
{
gint xkb_major = XkbMajorVersion;
gint xkb_minor = XkbMinorVersion;
if (XkbLibraryVersion (&xkb_major, &xkb_minor))
{
xkb_major = XkbMajorVersion;
xkb_minor = XkbMinorVersion;
if (XkbQueryExtension (display_x11->xdisplay,
NULL, &display_x11->xkb_event_type, NULL,
&xkb_major, &xkb_minor))
{
Bool detectable_autorepeat_supported;
display_x11->use_xkb = TRUE;
XkbSelectEvents (display_x11->xdisplay,
XkbUseCoreKbd,
XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
/* keep this in sync with _gdk_keymap_state_changed() */
XkbSelectEventDetails (display_x11->xdisplay,
XkbUseCoreKbd, XkbStateNotify,
XkbAllStateComponentsMask,
XkbGroupLockMask|XkbModifierLockMask);
XkbSetDetectableAutoRepeat (display_x11->xdisplay,
True,
&detectable_autorepeat_supported);
GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
detectable_autorepeat_supported ?
"supported" : "not supported"));
display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
}
}
}
#endif
display_x11->use_sync = FALSE;
#ifdef HAVE_XSYNC
{
int major, minor;
int error_base, event_base;
if (XSyncQueryExtension (display_x11->xdisplay,
&event_base, &error_base) &&
XSyncInitialize (display_x11->xdisplay,
&major, &minor))
display_x11->use_sync = TRUE;
}
#endif
_gdk_windowing_image_init (display);
_gdk_events_init (display);
_gdk_input_init (display);
_gdk_dnd_init (display);
for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
gdk_display_request_selection_notification (display,
GDK_SCREEN_X11 (display_x11->screens[i])->cm_selection_atom);
g_signal_emit_by_name (gdk_display_manager_get(),
"display_opened", display);
return display;
}
#ifdef HAVE_X11R6
/*
* XLib internal connection handling
*/
typedef struct _GdkInternalConnection GdkInternalConnection;
struct _GdkInternalConnection
{
gint fd;
GSource *source;
Display *display;
};
static gboolean
process_internal_connection (GIOChannel *gioc,
GIOCondition cond,
gpointer data)
{
GdkInternalConnection *connection = (GdkInternalConnection *)data;
GDK_THREADS_ENTER ();
XProcessInternalConnection ((Display*)connection->display, connection->fd);
GDK_THREADS_LEAVE ();
return TRUE;
}
gulong
_gdk_windowing_window_get_next_serial (GdkDisplay *display)
{
return NextRequest (GDK_DISPLAY_XDISPLAY (display));
}
static GdkInternalConnection *
gdk_add_connection_handler (Display *display,
guint fd)
{
GIOChannel *io_channel;
GdkInternalConnection *connection;
connection = g_new (GdkInternalConnection, 1);
connection->fd = fd;
connection->display = display;
io_channel = g_io_channel_unix_new (fd);
connection->source = g_io_create_watch (io_channel, G_IO_IN);
g_source_set_callback (connection->source,
(GSourceFunc)process_internal_connection, connection, NULL);
g_source_attach (connection->source, NULL);
g_io_channel_unref (io_channel);
return connection;
}
static void
gdk_remove_connection_handler (GdkInternalConnection *connection)
{
g_source_destroy (connection->source);
g_free (connection);
}
static void
gdk_internal_connection_watch (Display *display,
XPointer arg,
gint fd,
gboolean opening,
XPointer *watch_data)
{
if (opening)
*watch_data = (XPointer)gdk_add_connection_handler (display, fd);
else
gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
}
#endif /* HAVE_X11R6 */
/**
* gdk_display_get_name:
* @display: a #GdkDisplay
*
* Gets the name of the display.
*
* Returns: a string representing the display name. This string is owned
* by GDK and should not be modified or freed.
*
* Since: 2.2
*/
G_CONST_RETURN gchar *
gdk_display_get_name (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
}
/**
* gdk_display_get_n_screens:
* @display: a #GdkDisplay
*
* Gets the number of screen managed by the @display.
*
* Returns: number of screens.
*
* Since: 2.2
*/
gint
gdk_display_get_n_screens (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
}
/**
* gdk_display_get_screen:
* @display: a #GdkDisplay
* @screen_num: the screen number
*
* Returns a screen object for one of the screens of the display.
*
* Returns: the #GdkScreen object
*
* Since: 2.2
*/
GdkScreen *
gdk_display_get_screen (GdkDisplay *display,
gint screen_num)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
return GDK_DISPLAY_X11 (display)->screens[screen_num];
}
/**
* gdk_display_get_default_screen:
* @display: a #GdkDisplay
*
* Get the default #GdkScreen for @display.
*
* Returns: the default #GdkScreen object for @display
*
* Since: 2.2
*/
GdkScreen *
gdk_display_get_default_screen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_DISPLAY_X11 (display)->default_screen;
}
gboolean
_gdk_x11_display_is_root_window (GdkDisplay *display,
Window xroot_window)
{
GdkDisplayX11 *display_x11;
gint i;
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
display_x11 = GDK_DISPLAY_X11 (display);
for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
{
if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
return TRUE;
}
return FALSE;
}
struct XPointerUngrabInfo {
GdkDisplay *display;
guint32 time;
};
static void
pointer_ungrab_callback (GdkDisplay *display,
gpointer data,
gulong serial)
{
_gdk_display_pointer_grab_update (display, serial);
}
#define XSERVER_TIME_IS_LATER(time1, time2) \
( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
(( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
)
/**
* gdk_display_pointer_ungrab:
* @display: a #GdkDisplay.
* @time_: a timestap (e.g. %GDK_CURRENT_TIME).
*
* Release any pointer grab.
*
* Since: 2.2
*/
void
gdk_display_pointer_ungrab (GdkDisplay *display,
guint32 time_)
{
Display *xdisplay;
GdkDisplayX11 *display_x11;
GdkPointerGrabInfo *grab;
unsigned long serial;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_DISPLAY_X11 (display);
xdisplay = GDK_DISPLAY_XDISPLAY (display);
serial = NextRequest (xdisplay);
_gdk_input_ungrab_pointer (display, time_);
XUngrabPointer (xdisplay, time_);
XFlush (xdisplay);
grab = _gdk_display_get_last_pointer_grab (display);
if (grab &&
(time_ == GDK_CURRENT_TIME ||
grab->time == GDK_CURRENT_TIME ||
!XSERVER_TIME_IS_LATER (grab->time, time_)))
{
grab->serial_end = serial;
_gdk_x11_roundtrip_async (display,
pointer_ungrab_callback,
NULL);
}
}
/**
* gdk_display_keyboard_ungrab:
* @display: a #GdkDisplay.
* @time_: a timestap (e.g #GDK_CURRENT_TIME).
*
* Release any keyboard grab
*
* Since: 2.2
*/
void
gdk_display_keyboard_ungrab (GdkDisplay *display,
guint32 time)
{
Display *xdisplay;
GdkDisplayX11 *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_DISPLAY_X11 (display);
xdisplay = GDK_DISPLAY_XDISPLAY (display);
XUngrabKeyboard (xdisplay, time);
XFlush (xdisplay);
if (time == GDK_CURRENT_TIME ||
display->keyboard_grab.time == GDK_CURRENT_TIME ||
!XSERVER_TIME_IS_LATER (display->keyboard_grab.time, time))
_gdk_display_unset_has_keyboard_grab (display, FALSE);
}
/**
* gdk_display_beep:
* @display: a #GdkDisplay
*
* Emits a short beep on @display
*
* Since: 2.2
*/
void
gdk_display_beep (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
XBell (GDK_DISPLAY_XDISPLAY (display), 0);
}
/**
* gdk_display_sync:
* @display: a #GdkDisplay
*
* Flushes any requests queued for the windowing system and waits until all
* requests have been handled. This is often used for making sure that the
* display is synchronized with the current state of the program. Calling
* gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
* generated from earlier requests are handled before the error trap is
* removed.
*
* This is most useful for X11. On windowing systems where requests are
* handled synchronously, this function will do nothing.
*
* Since: 2.2
*/
void
gdk_display_sync (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
XSync (GDK_DISPLAY_XDISPLAY (display), False);
}
/**
* gdk_display_flush:
* @display: a #GdkDisplay
*
* Flushes any requests queued for the windowing system; this happens automatically
* when the main loop blocks waiting for new events, but if your application
* is drawing without returning control to the main loop, you may need
* to call this function explicitely. A common case where this function
* needs to be called is when an application is executing drawing commands
* from a thread other than the thread where the main loop is running.
*
* This is most useful for X11. On windowing systems where requests are
* handled synchronously, this function will do nothing.
*
* Since: 2.4
*/
void
gdk_display_flush (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
if (!display->closed)
XFlush (GDK_DISPLAY_XDISPLAY (display));
}
/**
* gdk_display_get_default_group:
* @display: a #GdkDisplay
*
* Returns the default group leader window for all toplevel windows
* on @display. This window is implicitly created by GDK.
* See gdk_window_set_group().
*
* Return value: The default group leader window for @display
*
* Since: 2.4
**/
GdkWindow *
gdk_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_DISPLAY_X11 (display)->leader_gdk_window;
}
/**
* gdk_x11_display_grab:
* @display: a #GdkDisplay
*
* Call XGrabServer() on @display.
* To ungrab the display again, use gdk_x11_display_ungrab().
*
* gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
*
* Since: 2.2
**/
void
gdk_x11_display_grab (GdkDisplay *display)
{
GdkDisplayX11 *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_DISPLAY_X11 (display);
if (display_x11->grab_count == 0)
XGrabServer (display_x11->xdisplay);
display_x11->grab_count++;
}
/**
* gdk_x11_display_ungrab:
* @display: a #GdkDisplay
*
* Ungrab @display after it has been grabbed with
* gdk_x11_display_grab().
*
* Since: 2.2
**/
void
gdk_x11_display_ungrab (GdkDisplay *display)
{
GdkDisplayX11 *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_DISPLAY_X11 (display);;
g_return_if_fail (display_x11->grab_count > 0);
display_x11->grab_count--;
if (display_x11->grab_count == 0)
{
XUngrabServer (display_x11->xdisplay);
XFlush (display_x11->xdisplay);
}
}
static void
gdk_display_x11_dispose (GObject *object)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
gint i;
g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
_gdk_screen_close (display_x11->screens[i]);
_gdk_events_uninit (GDK_DISPLAY_OBJECT (object));
G_OBJECT_CLASS (_gdk_display_x11_parent_class)->dispose (object);
}
static void
gdk_display_x11_finalize (GObject *object)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
gint i;
/* Keymap */
if (display_x11->keymap)
g_object_unref (display_x11->keymap);
/* Free motif Dnd */
if (display_x11->motif_target_lists)
{
for (i = 0; i < display_x11->motif_n_target_lists; i++)
g_list_free (display_x11->motif_target_lists[i]);
g_free (display_x11->motif_target_lists);
}
_gdk_x11_cursor_display_finalize (GDK_DISPLAY_OBJECT(display_x11));
/* Atom Hashtable */
g_hash_table_destroy (display_x11->atom_from_virtual);
g_hash_table_destroy (display_x11->atom_to_virtual);
/* Leader Window */
XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
/* list of filters for client messages */
g_list_foreach (display_x11->client_filters, (GFunc) g_free, NULL);
g_list_free (display_x11->client_filters);
/* List of event window extraction functions */
g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
g_slist_free (display_x11->event_types);
/* input GdkDevice list */
g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
g_list_free (display_x11->input_devices);
/* input GdkWindow list */
g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
g_list_free (display_x11->input_windows);
/* Free all GdkScreens */
for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
g_object_unref (display_x11->screens[i]);
g_free (display_x11->screens);
g_free (display_x11->startup_notification_id);
/* X ID hashtable */
g_hash_table_destroy (display_x11->xid_ht);
XCloseDisplay (display_x11->xdisplay);
G_OBJECT_CLASS (_gdk_display_x11_parent_class)->finalize (object);
}
/**
* gdk_x11_lookup_xdisplay:
* @xdisplay: a pointer to an X Display
*
* Find the #GdkDisplay corresponding to @display, if any exists.
*
* Return value: the #GdkDisplay, if found, otherwise %NULL.
*
* Since: 2.2
**/
GdkDisplay *
gdk_x11_lookup_xdisplay (Display *xdisplay)
{
GSList *tmp_list;
for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
{
if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
return tmp_list->data;
}
return NULL;
}
/**
* _gdk_x11_display_screen_for_xrootwin:
* @display: a #GdkDisplay
* @xrootwin: window ID for one of of the screen's of the display.
*
* Given the root window ID of one of the screen's of a #GdkDisplay,
* finds the screen.
*
* Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
**/
GdkScreen *
_gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
Window xrootwin)
{
gint i;
for (i = 0; i < ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay); i++)
{
GdkScreen *screen = gdk_display_get_screen (display, i);
if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
return screen;
}
return NULL;
}
/**
* gdk_x11_display_get_xdisplay:
* @display: a #GdkDisplay
* @returns: an X display.
*
* Returns the X display of a #GdkDisplay.
*
* Since: 2.2
*/
Display *
gdk_x11_display_get_xdisplay (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_DISPLAY_X11 (display)->xdisplay;
}
void
_gdk_windowing_set_default_display (GdkDisplay *display)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
const gchar *startup_id;
if (!display)
{
gdk_display = NULL;
return;
}
gdk_display = GDK_DISPLAY_XDISPLAY (display);
g_free (display_x11->startup_notification_id);
display_x11->startup_notification_id = NULL;
startup_id = g_getenv ("DESKTOP_STARTUP_ID");
if (startup_id && *startup_id != '\0')
{
gchar *time_str;
if (!g_utf8_validate (startup_id, -1, NULL))
g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
else
display_x11->startup_notification_id = g_strdup (startup_id);
/* Find the launch time from the startup_id, if it's there. Newer spec
* states that the startup_id is of the form <unique>_TIME<timestamp>
*/
time_str = g_strrstr (startup_id, "_TIME");
if (time_str != NULL)
{
gulong retval;
gchar *end;
errno = 0;
/* Skip past the "_TIME" part */
time_str += 5;
retval = strtoul (time_str, &end, 0);
if (end != time_str && errno == 0)
display_x11->user_time = retval;
}
/* Clear the environment variable so it won't be inherited by
* child processes and confuse things.
*/
g_unsetenv ("DESKTOP_STARTUP_ID");
/* Set the startup id on the leader window so it
* applies to all windows we create on this display
*/
XChangeProperty (display_x11->xdisplay,
display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
PropModeReplace,
(guchar *)startup_id, strlen (startup_id));
}
}
static void
broadcast_xmessage (GdkDisplay *display,
const char *message_type,
const char *message_type_begin,
const char *message)
{
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
GdkScreen *screen = gdk_display_get_default_screen (display);
GdkWindow *root_window = gdk_screen_get_root_window (screen);
Window xroot_window = GDK_WINDOW_XID (root_window);
Atom type_atom;
Atom type_atom_begin;
Window xwindow;
if (!G_LIKELY (GDK_DISPLAY_X11 (display)->trusted_client))
return;
{
XSetWindowAttributes attrs;
attrs.override_redirect = True;
attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
xwindow =
XCreateWindow (xdisplay,
xroot_window,
-100, -100, 1, 1,
0,
CopyFromParent,
CopyFromParent,
(Visual *)CopyFromParent,
CWOverrideRedirect | CWEventMask,
&attrs);
}
type_atom = gdk_x11_get_xatom_by_name_for_display (display,
message_type);
type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
message_type_begin);
{
XClientMessageEvent xclient;
const char *src;
const char *src_end;
char *dest;
char *dest_end;
memset(&xclient, 0, sizeof (xclient));
xclient.type = ClientMessage;
xclient.message_type = type_atom_begin;
xclient.display =xdisplay;
xclient.window = xwindow;
xclient.format = 8;
src = message;
src_end = message + strlen (message) + 1; /* +1 to include nul byte */
while (src != src_end)
{
dest = &xclient.data.b[0];
dest_end = dest + 20;
while (dest != dest_end &&
src != src_end)
{
*dest = *src;
++dest;
++src;
}
while (dest != dest_end)
{
*dest = 0;
++dest;
}
XSendEvent (xdisplay,
xroot_window,
False,
PropertyChangeMask,
(XEvent *)&xclient);
xclient.message_type = type_atom;
}
}
XDestroyWindow (xdisplay, xwindow);
XFlush (xdisplay);
}
/**
* gdk_x11_display_broadcast_startup_message:
* @display: a #GdkDisplay
* @message_type: startup notification message type ("new", "change",
* or "remove")
* @...: a list of key/value pairs (as strings), terminated by a
* %NULL key. (A %NULL value for a key will cause that key to be
* skipped in the output.)
*
* Sends a startup notification message of type @message_type to
* @display.
*
* This is a convenience function for use by code that implements the
* freedesktop startup notification specification. Applications should
* not normally need to call it directly. See the <ulink
* url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
* Notification Protocol specification</ulink> for
* definitions of the message types and keys that can be used.
*
* Since: 2.12
**/
void
gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
const char *message_type,
...)
{
GString *message;
va_list ap;
const char *key, *value, *p;
message = g_string_new (message_type);
g_string_append_c (message, ':');
va_start (ap, message_type);
while ((key = va_arg (ap, const char *)))
{
value = va_arg (ap, const char *);
if (!value)
continue;
g_string_append_printf (message, " %s=\"", key);
for (p = value; *p; p++)
{
switch (*p)
{
case ' ':
case '"':
case '\\':
g_string_append_c (message, '\\');
break;
}
g_string_append_c (message, *p);
}
g_string_append_c (message, '\"');
}
va_end (ap);
broadcast_xmessage (display,
"_NET_STARTUP_INFO",
"_NET_STARTUP_INFO_BEGIN",
message->str);
g_string_free (message, TRUE);
}
/**
* gdk_notify_startup_complete:
*
* Indicates to the GUI environment that the application has finished
* loading. If the applications opens windows, this function is
* normally called after opening the application's initial set of
* windows.
*
* GTK+ will call this function automatically after opening the first
* #GtkWindow unless gtk_window_set_auto_startup_notification() is called
* to disable that feature.
*
* Since: 2.2
**/
void
gdk_notify_startup_complete (void)
{
GdkDisplay *display;
GdkDisplayX11 *display_x11;
display = gdk_display_get_default ();
if (!display)
return;
display_x11 = GDK_DISPLAY_X11 (display);
if (display_x11->startup_notification_id == NULL)
return;
gdk_notify_startup_complete_with_id (display_x11->startup_notification_id);
}
/**
* gdk_notify_startup_complete_with_id:
* @startup_id: a startup-notification identifier, for which notification
* process should be completed
*
* Indicates to the GUI environment that the application has finished
* loading, using a given identifier.
*
* GTK+ will call this function automatically for #GtkWindow with custom
* startup-notification identifier unless
* gtk_window_set_auto_startup_notification() is called to disable
* that feature.
*
* Since: 2.12
**/
void
gdk_notify_startup_complete_with_id (const gchar* startup_id)
{
GdkDisplay *display;
display = gdk_display_get_default ();
if (!display)
return;
gdk_x11_display_broadcast_startup_message (display, "remove",
"ID", startup_id,
NULL);
}
/**
* gdk_display_supports_selection_notification:
* @display: a #GdkDisplay
*
* Returns whether #GdkEventOwnerChange events will be
* sent when the owner of a selection changes.
*
* Return value: whether #GdkEventOwnerChange events will
* be sent.
*
* Since: 2.6
**/
gboolean
gdk_display_supports_selection_notification (GdkDisplay *display)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
return display_x11->have_xfixes;
}
/**
* gdk_display_request_selection_notification:
* @display: a #GdkDisplay
* @selection: the #GdkAtom naming the selection for which
* ownership change notification is requested
*
* Request #GdkEventOwnerChange events for ownership changes
* of the selection named by the given atom.
*
* Return value: whether #GdkEventOwnerChange events will
* be sent.
*
* Since: 2.6
**/
gboolean
gdk_display_request_selection_notification (GdkDisplay *display,
GdkAtom selection)
{
#ifdef HAVE_XFIXES
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
Atom atom;
if (display_x11->have_xfixes)
{
atom = gdk_x11_atom_to_xatom_for_display (display,
selection);
XFixesSelectSelectionInput (display_x11->xdisplay,
display_x11->leader_window,
atom,
XFixesSetSelectionOwnerNotifyMask |
XFixesSelectionWindowDestroyNotifyMask |
XFixesSelectionClientCloseNotifyMask);
return TRUE;
}
else
#endif
return FALSE;
}
/**
* gdk_display_supports_clipboard_persistence
* @display: a #GdkDisplay
*
* Returns whether the speicifed display supports clipboard
* persistance; i.e. if it's possible to store the clipboard data after an
* application has quit. On X11 this checks if a clipboard daemon is
* running.
*
* Returns: %TRUE if the display supports clipboard persistance.
*
* Since: 2.6
*/
gboolean
gdk_display_supports_clipboard_persistence (GdkDisplay *display)
{
Atom clipboard_manager;
/* It might make sense to cache this */
clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
return XGetSelectionOwner (GDK_DISPLAY_X11 (display)->xdisplay, clipboard_manager) != None;
}
/**
* gdk_display_store_clipboard
* @display: a #GdkDisplay
* @clipboard_window: a #GdkWindow belonging to the clipboard owner
* @time_: a timestamp
* @targets: an array of targets that should be saved, or %NULL
* if all available targets should be saved.
* @n_targets: length of the @targets array
*
* Issues a request to the clipboard manager to store the
* clipboard data. On X11, this is a special program that works
* according to the freedesktop clipboard specification, available at
* <ulink url="http://www.freedesktop.org/Standards/clipboard-manager-spec">
* http://www.freedesktop.org/Standards/clipboard-manager-spec</ulink>.
*
* Since: 2.6
*/
void
gdk_display_store_clipboard (GdkDisplay *display,
GdkWindow *clipboard_window,
guint32 time_,
const GdkAtom *targets,
gint n_targets)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
Atom clipboard_manager, save_targets;
g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
gdk_error_trap_push ();
if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
{
Atom property_name = None;
Atom *xatoms;
int i;
if (n_targets > 0)
{
property_name = gdk_x11_atom_to_xatom_for_display (display, _gdk_selection_property);
xatoms = g_new (Atom, n_targets);
for (i = 0; i < n_targets; i++)
xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
property_name, XA_ATOM,
32, PropModeReplace, (guchar *)xatoms, n_targets);
g_free (xatoms);
}
XConvertSelection (display_x11->xdisplay,
clipboard_manager, save_targets, property_name,
GDK_WINDOW_XID (clipboard_window), time_);
}
gdk_error_trap_pop ();
}
/**
* gdk_x11_display_get_user_time:
* @display: a #GdkDisplay
*
* Returns the timestamp of the last user interaction on
* @display. The timestamp is taken from events caused
* by user interaction such as key presses or pointer
* movements. See gdk_x11_window_set_user_time().
*
* Returns: the timestamp of the last user interaction
*
* Since: 2.8
*/
guint32
gdk_x11_display_get_user_time (GdkDisplay *display)
{
return GDK_DISPLAY_X11 (display)->user_time;
}
/**
* gdk_display_supports_shapes:
* @display: a #GdkDisplay
*
* Returns %TRUE if gdk_window_shape_combine_mask() can
* be used to create shaped windows on @display.
*
* Returns: %TRUE if shaped windows are supported
*
* Since: 2.10
*/
gboolean
gdk_display_supports_shapes (GdkDisplay *display)
{
return GDK_DISPLAY_X11 (display)->have_shapes;
}
/**
* gdk_display_supports_input_shapes:
* @display: a #GdkDisplay
*
* Returns %TRUE if gdk_window_input_shape_combine_mask() can
* be used to modify the input shape of windows on @display.
*
* Returns: %TRUE if windows with modified input shape are supported
*
* Since: 2.10
*/
gboolean
gdk_display_supports_input_shapes (GdkDisplay *display)
{
return GDK_DISPLAY_X11 (display)->have_input_shapes;
}
/**
* gdk_x11_display_get_startup_notification_id:
* @display: a #GdkDisplay
*
* Gets the startup notification ID for a display.
*
* Returns: the startup notification ID for @display
*
* Since: 2.12
*/
G_CONST_RETURN gchar *
gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
{
return GDK_DISPLAY_X11 (display)->startup_notification_id;
}
/**
* gdk_display_supports_composite:
* @display: a #GdkDisplay
*
* Returns %TRUE if gdk_window_set_composited() can be used
* to redirect drawing on the window using compositing.
*
* Currently this only works on X11 with XComposite and
* XDamage extensions available.
*
* Returns: %TRUE if windows may be composited.
*
* Since: 2.12
*/
gboolean
gdk_display_supports_composite (GdkDisplay *display)
{
GdkDisplayX11 *x11_display = GDK_DISPLAY_X11 (display);
return x11_display->have_xcomposite &&
x11_display->have_xdamage &&
x11_display->have_xfixes;
}
#define __GDK_DISPLAY_X11_C__
#include "gdkaliasdef.c"
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