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gtk/gdk/x11/gdkevents-x11.c
Owen Taylor a5d1bc41ec Always trap errors around calls to XSetInputFocus since we have no way of 
Wed May  2 17:26:22 2001  Owen Taylor  <otaylor@redhat.com>

	* gdk/x11/gdkevents-x11.c gdk/x11/gdkwindow-x11.c: Always
	trap errors around calls to XSetInputFocus since we have
	no way of knowing reliably whether we are viewable or
	not. (#53947)
2001-05-02 21:31:52 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gdk.h"
#include "gdkprivate-x11.h"
#include "gdkinternals.h"
#include "gdkx.h"
#include "gdkkeysyms.h"
#include "xsettings-client.h"
#if HAVE_CONFIG_H
# include <config.h>
# if STDC_HEADERS
# include <string.h>
# endif
#endif
#include "gdkinputprivate.h"
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#include <X11/Xatom.h>
typedef struct _GdkIOClosure GdkIOClosure;
typedef struct _GdkEventPrivate GdkEventPrivate;
#define DOUBLE_CLICK_TIME 250
#define TRIPLE_CLICK_TIME 500
#define DOUBLE_CLICK_DIST 5
#define TRIPLE_CLICK_DIST 5
typedef enum
{
/* Following flag is set for events on the event queue during
* translation and cleared afterwards.
*/
GDK_EVENT_PENDING = 1 << 0
} GdkEventFlags;
struct _GdkIOClosure
{
GdkInputFunction function;
GdkInputCondition condition;
GdkDestroyNotify notify;
gpointer data;
};
struct _GdkEventPrivate
{
GdkEvent event;
guint flags;
};
/*
* Private function declarations
*/
static gint gdk_event_apply_filters (XEvent *xevent,
GdkEvent *event,
GList *filters);
static gint gdk_event_translate (GdkEvent *event,
XEvent *xevent,
gboolean return_exposes);
#if 0
static Bool gdk_event_get_type (Display *display,
XEvent *xevent,
XPointer arg);
#endif
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);
GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data);
static void gdk_xsettings_watch_cb (Window window,
Bool is_start,
long mask,
void *cb_data);
static void gdk_xsettings_notify_cb (const char *name,
XSettingsAction action,
XSettingsSetting *setting,
void *data);
/* Private variable declarations
*/
static int connection_number = 0; /* The file descriptor number of our
* connection to the X server. This
* is used so that we may determine
* when events are pending by using
* the "select" system call.
*/
static GList *client_filters; /* Filters for client messages */
static GSourceFuncs event_funcs = {
gdk_event_prepare,
gdk_event_check,
gdk_event_dispatch,
NULL
};
static GPollFD event_poll_fd;
static Window wmspec_check_window = None;
static XSettingsClient *xsettings_client;
/*********************************************
* Functions for maintaining the event queue *
*********************************************/
void
gdk_events_init (void)
{
GSource *source;
connection_number = ConnectionNumber (gdk_display);
GDK_NOTE (MISC,
g_message ("connection number: %d", connection_number));
source = g_source_new (&event_funcs, sizeof (GSource));
g_source_set_priority (source, GDK_PRIORITY_EVENTS);
event_poll_fd.fd = connection_number;
event_poll_fd.events = G_IO_IN;
g_source_add_poll (source, &event_poll_fd);
g_source_set_can_recurse (source, TRUE);
g_source_attach (source, NULL);
gdk_add_client_message_filter (gdk_wm_protocols,
gdk_wm_protocols_filter, NULL);
xsettings_client = xsettings_client_new (gdk_display, DefaultScreen (gdk_display),
gdk_xsettings_notify_cb,
gdk_xsettings_watch_cb,
NULL);
}
/*
*--------------------------------------------------------------
* gdk_events_pending
*
* Returns if events are pending on the queue.
*
* Arguments:
*
* Results:
* Returns TRUE if events are pending
*
* Side effects:
*
*--------------------------------------------------------------
*/
gboolean
gdk_events_pending (void)
{
return (gdk_event_queue_find_first() || XPending (gdk_display));
}
/*
*--------------------------------------------------------------
* gdk_event_get_graphics_expose
*
* Waits for a GraphicsExpose or NoExpose event
*
* Arguments:
*
* Results:
* For GraphicsExpose events, returns a pointer to the event
* converted into a GdkEvent Otherwise, returns NULL.
*
* Side effects:
*
*-------------------------------------------------------------- */
static Bool
graphics_expose_predicate (Display *display,
XEvent *xevent,
XPointer arg)
{
if (xevent->xany.window == GDK_DRAWABLE_XID (arg) &&
(xevent->xany.type == GraphicsExpose ||
xevent->xany.type == NoExpose))
return True;
else
return False;
}
GdkEvent*
gdk_event_get_graphics_expose (GdkWindow *window)
{
XEvent xevent;
GdkEvent *event;
g_return_val_if_fail (window != NULL, NULL);
XIfEvent (gdk_display, &xevent, graphics_expose_predicate, (XPointer) window);
if (xevent.xany.type == GraphicsExpose)
{
event = gdk_event_new ();
if (gdk_event_translate (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;
}
void
gdk_add_client_message_filter (GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
GdkClientFilter *filter = g_new (GdkClientFilter, 1);
filter->type = message_type;
filter->function = func;
filter->data = data;
client_filters = g_list_prepend (client_filters, filter);
}
static GdkAtom wm_state_atom = 0;
static GdkAtom wm_desktop_atom = 0;
static void
gdk_check_wm_state_changed (GdkWindow *window)
{
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
GdkAtom *atoms = NULL;
gulong i;
GdkAtom sticky_atom;
GdkAtom maxvert_atom;
GdkAtom maxhorz_atom;
gboolean found_sticky, found_maxvert, found_maxhorz;
GdkWindowState old_state;
if (GDK_WINDOW_DESTROYED (window))
return;
if (wm_state_atom == 0)
wm_state_atom = gdk_atom_intern ("_NET_WM_STATE", FALSE);
if (wm_desktop_atom == 0)
wm_desktop_atom = gdk_atom_intern ("_NET_WM_DESKTOP", FALSE);
XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
wm_state_atom, 0, G_MAXLONG,
False, XA_ATOM, &type, &format, &nitems,
&bytes_after, (guchar **)&atoms);
if (type != None)
{
sticky_atom = gdk_atom_intern ("_NET_WM_STATE_STICKY", FALSE);
maxvert_atom = gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_VERT", FALSE);
maxhorz_atom = gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_HORZ", FALSE);
found_sticky = FALSE;
found_maxvert = FALSE;
found_maxhorz = FALSE;
i = 0;
while (i < nitems)
{
if (atoms[i] == sticky_atom)
found_sticky = TRUE;
else if (atoms[i] == maxvert_atom)
found_maxvert = TRUE;
else if (atoms[i] == maxhorz_atom)
found_maxhorz = TRUE;
++i;
}
XFree (atoms);
}
else
{
found_sticky = FALSE;
found_maxvert = FALSE;
found_maxhorz = FALSE;
}
/* For found_sticky to remain TRUE, we have to also be on desktop
* 0xFFFFFFFF
*/
if (found_sticky)
{
gulong *desktop;
XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
wm_desktop_atom, 0, G_MAXLONG,
False, XA_CARDINAL, &type, &format, &nitems,
&bytes_after, (guchar **)&desktop);
if (type != None)
{
if (*desktop != 0xFFFFFFFF)
found_sticky = FALSE;
XFree (desktop);
}
}
old_state = gdk_window_get_state (window);
if (old_state & GDK_WINDOW_STATE_STICKY)
{
if (!found_sticky)
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_STICKY,
0);
}
else
{
if (found_sticky)
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_STICKY);
}
/* Our "maximized" means both vertical and horizontal; if only one,
* we don't expose that via GDK
*/
if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
{
if (!(found_maxvert && found_maxhorz))
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_MAXIMIZED,
0);
}
else
{
if (found_maxvert && found_maxhorz)
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_MAXIMIZED);
}
}
#define HAS_FOCUS(window_impl) \
((window_impl)->has_focus || (window_impl)->has_pointer_focus)
static void
generate_focus_event (GdkWindow *window,
gboolean in)
{
GdkEvent event;
event.type = GDK_FOCUS_CHANGE;
event.focus_change.window = window;
event.focus_change.send_event = FALSE;
event.focus_change.in = in;
gdk_event_put (&event);
}
static gint
gdk_event_translate (GdkEvent *event,
XEvent *xevent,
gboolean return_exposes)
{
GdkWindow *window;
GdkWindowObject *window_private;
GdkWindowImplX11 *window_impl = NULL;
static XComposeStatus compose;
KeySym keysym;
int charcount;
char buf[16];
gint return_val;
gint xoffset, yoffset;
return_val = FALSE;
/* Find the GdkWindow that this event occurred in.
*
* We handle events with window=None
* specially - they are generated by XFree86's XInput under
* some circumstances.
*/
if (xevent->xany.window == None)
{
return_val = _gdk_input_window_none_event (event, xevent);
if (return_val >= 0) /* was handled */
return return_val;
else
return_val = FALSE;
}
window = gdk_window_lookup (xevent->xany.window);
window_private = (GdkWindowObject *) window;
if (_gdk_moveresize_window &&
(xevent->xany.type == MotionNotify ||
xevent->xany.type == ButtonRelease))
{
_gdk_moveresize_handle_event (xevent);
gdk_window_unref (window);
return FALSE;
}
if (wmspec_check_window != None &&
xevent->xany.window == wmspec_check_window)
{
if (xevent->type == DestroyNotify)
wmspec_check_window = None;
/* Eat events on this window unless someone had wrapped
* it as a foreign window
*/
if (window == NULL)
return FALSE;
}
/* FIXME: window might be a GdkPixmap!!! */
if (window != NULL)
{
window_impl = GDK_WINDOW_IMPL_X11 (window_private->impl);
if (xevent->xany.window != GDK_WINDOW_XID (window))
{
g_assert (xevent->xany.window == window_impl->focus_window);
switch (xevent->type)
{
case KeyPress:
case KeyRelease:
xevent->xany.window = GDK_WINDOW_XID (window);
break;
default:
return False;
}
}
gdk_window_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 FALSE;
}
else
{
/* Check for filters for this window
*/
GdkFilterReturn result;
result = gdk_event_apply_filters (xevent, event,
window_private
?window_private->filters
:gdk_default_filters);
if (result != GDK_FILTER_CONTINUE)
{
return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE;
goto done;
}
}
/* We do a "manual" conversion of the XEvent to a
* GdkEvent. The structures are mostly the same so
* the conversion is fairly straightforward. We also
* optionally print debugging info regarding events
* received.
*/
return_val = TRUE;
if (window)
{
_gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
}
else
{
xoffset = 0;
yoffset = 0;
}
switch (xevent->type)
{
case KeyPress:
/* Lookup the string corresponding to the given keysym.
*/
charcount = XLookupString (&xevent->xkey, buf, 16,
&keysym, &compose);
event->key.keyval = keysym;
event->key.hardware_keycode = xevent->xkey.keycode;
if (charcount > 0 && buf[charcount-1] == '\0')
charcount --;
else
buf[charcount] = '\0';
#ifdef G_ENABLE_DEBUG
if (gdk_debug_flags & GDK_DEBUG_EVENTS)
{
g_message ("key press:\twindow: %ld key: %12s %d",
xevent->xkey.window,
event->key.keyval ? XKeysymToString (event->key.keyval) : "(none)",
event->key.keyval);
if (charcount > 0)
g_message ("\t\tlength: %4d string: \"%s\"",
charcount, buf);
}
#endif /* G_ENABLE_DEBUG */
/* bits 13 and 14 in the "state" field are the keyboard group */
#define KEYBOARD_GROUP_SHIFT 13
#define KEYBOARD_GROUP_MASK ((1 << 13) | (1 << 14))
event->key.type = GDK_KEY_PRESS;
event->key.window = window;
event->key.time = xevent->xkey.time;
event->key.state = (GdkModifierType) xevent->xkey.state;
event->key.string = g_strdup (buf);
event->key.length = charcount;
event->key.group = (xevent->xkey.state & KEYBOARD_GROUP_MASK) >> KEYBOARD_GROUP_SHIFT;
break;
case KeyRelease:
/* Lookup the string corresponding to the given keysym.
*/
/* 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 (!_gdk_have_xkb_autorepeat && XPending (gdk_display))
{
XEvent next_event;
XPeekEvent (gdk_display, &next_event);
if (next_event.type == KeyPress &&
next_event.xkey.keycode == xevent->xkey.keycode &&
next_event.xkey.time == xevent->xkey.time)
break;
}
keysym = GDK_VoidSymbol;
charcount = XLookupString (&xevent->xkey, buf, 16,
&keysym, &compose);
event->key.keyval = keysym;
GDK_NOTE (EVENTS,
g_message ("key release:\t\twindow: %ld key: %12s %d",
xevent->xkey.window,
XKeysymToString (event->key.keyval),
event->key.keyval));
event->key.type = GDK_KEY_RELEASE;
event->key.window = window;
event->key.time = xevent->xkey.time;
event->key.state = (GdkModifierType) xevent->xkey.state;
event->key.length = 0;
event->key.string = NULL;
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 &&
(window_private->extension_events != 0) &&
gdk_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 */
if (xevent->xbutton.button == 4 || xevent->xbutton.button == 5)
{
event->scroll.type = GDK_SCROLL;
event->scroll.direction = (xevent->xbutton.button == 4) ?
GDK_SCROLL_UP : GDK_SCROLL_DOWN;
event->scroll.window = window;
event->scroll.time = xevent->xbutton.x;
event->scroll.x = xevent->xbutton.x + xoffset;
event->scroll.y = xevent->xbutton.y + yoffset;
event->scroll.x_root = (gfloat)xevent->xbutton.x_root;
event->scroll.y_root = (gfloat)xevent->xbutton.y_root;
event->scroll.state = (GdkModifierType) xevent->xbutton.state;
event->scroll.device = gdk_core_pointer;
}
else
{
event->button.type = GDK_BUTTON_PRESS;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x + xoffset;
event->button.y = xevent->xbutton.y + yoffset;
event->button.x_root = (gfloat)xevent->xbutton.x_root;
event->button.y_root = (gfloat)xevent->xbutton.y_root;
event->button.axes = NULL;
event->button.state = (GdkModifierType) xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.device = gdk_core_pointer;
gdk_event_button_generate (event);
}
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 &&
(window_private->extension_events != 0) &&
gdk_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)
{
return_val = FALSE;
break;
}
event->button.type = GDK_BUTTON_RELEASE;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x + xoffset;
event->button.y = xevent->xbutton.y + yoffset;
event->button.x_root = (gfloat)xevent->xbutton.x_root;
event->button.y_root = (gfloat)xevent->xbutton.y_root;
event->button.axes = NULL;
event->button.state = (GdkModifierType) xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.device = gdk_core_pointer;
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 &&
(window_private->extension_events != 0) &&
gdk_input_ignore_core)
{
return_val = FALSE;
break;
}
event->motion.type = GDK_MOTION_NOTIFY;
event->motion.window = window;
event->motion.time = xevent->xmotion.time;
event->motion.x = xevent->xmotion.x + xoffset;
event->motion.y = xevent->xmotion.y + yoffset;
event->motion.x_root = (gfloat)xevent->xmotion.x_root;
event->motion.y_root = (gfloat)xevent->xmotion.y_root;
event->motion.axes = NULL;
event->motion.state = (GdkModifierType) xevent->xmotion.state;
event->motion.is_hint = xevent->xmotion.is_hint;
event->motion.device = gdk_core_pointer;
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));
/* Handle focusing (in the case where no window manager is running */
if (window &&
GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
xevent->xcrossing.detail != NotifyInferior &&
xevent->xcrossing.focus && !window_impl->has_focus)
{
gboolean had_focus = HAS_FOCUS (window_impl);
window_impl->has_pointer_focus = TRUE;
if (HAS_FOCUS (window_impl) != had_focus)
generate_focus_event (window, TRUE);
}
/* Tell XInput stuff about it if appropriate */
if (window_private &&
!GDK_WINDOW_DESTROYED (window) &&
window_private->extension_events != 0)
_gdk_input_enter_event (&xevent->xcrossing, window);
event->crossing.type = GDK_ENTER_NOTIFY;
event->crossing.window = window;
/* If the subwindow field of the XEvent is non-NULL, then
* lookup the corresponding GdkWindow.
*/
if (xevent->xcrossing.subwindow != None)
event->crossing.subwindow = gdk_window_lookup (xevent->xcrossing.subwindow);
else
event->crossing.subwindow = NULL;
event->crossing.time = xevent->xcrossing.time;
event->crossing.x = xevent->xcrossing.x + xoffset;
event->crossing.y = xevent->xcrossing.y + yoffset;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_root;
/* 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));
/* Handle focusing (in the case where no window manager is running */
if (window &&
GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
xevent->xcrossing.detail != NotifyInferior &&
xevent->xcrossing.focus && !window_impl->has_focus)
{
gboolean had_focus = HAS_FOCUS (window_impl);
window_impl->has_pointer_focus = FALSE;
if (HAS_FOCUS (window_impl) != had_focus)
generate_focus_event (window, FALSE);
}
event->crossing.type = GDK_LEAVE_NOTIFY;
event->crossing.window = window;
/* If the subwindow field of the XEvent is non-NULL, then
* lookup the corresponding GdkWindow.
*/
if (xevent->xcrossing.subwindow != None)
event->crossing.subwindow = gdk_window_lookup (xevent->xcrossing.subwindow);
else
event->crossing.subwindow = NULL;
event->crossing.time = xevent->xcrossing.time;
event->crossing.x = xevent->xcrossing.x + xoffset;
event->crossing.y = xevent->xcrossing.y + yoffset;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_root;
/* 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", xevent->xfocus.window));
if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD)
{
gboolean had_focus = HAS_FOCUS (window_impl);
switch (xevent->xfocus.detail)
{
case NotifyAncestor:
case NotifyNonlinear:
case NotifyVirtual:
case NotifyNonlinearVirtual:
window_impl->has_focus = TRUE;
break;
case NotifyPointer:
window_impl->has_pointer_focus = TRUE;
break;
case NotifyInferior:
case NotifyPointerRoot:
case NotifyDetailNone:
break;
}
if (HAS_FOCUS (window_impl) != had_focus)
generate_focus_event (window, TRUE);
}
break;
case FocusOut:
GDK_NOTE (EVENTS,
g_message ("focus out:\t\twindow: %ld", xevent->xfocus.window));
if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD)
{
gboolean had_focus = HAS_FOCUS (window_impl);
switch (xevent->xfocus.detail)
{
case NotifyAncestor:
case NotifyNonlinear:
case NotifyVirtual:
case NotifyNonlinearVirtual:
window_impl->has_focus = FALSE;
break;
case NotifyPointer:
window_impl->has_pointer_focus = FALSE;
break;
case NotifyInferior:
case NotifyPointerRoot:
case NotifyDetailNone:
break;
}
if (HAS_FOCUS (window_impl) != had_focus)
generate_focus_event (window, FALSE);
}
break;
#if 0
/* gdk_keyboard_grab() causes following events. These events confuse
* the XIM focus, so ignore them.
*/
if (xevent->xfocus.mode == NotifyGrab ||
xevent->xfocus.mode == NotifyUngrab)
break;
#endif
case KeymapNotify:
GDK_NOTE (EVENTS,
g_message ("keymap notify"));
/* Not currently handled */
return_val = FALSE;
break;
case Expose:
GDK_NOTE (EVENTS,
g_message ("expose:\t\twindow: %ld %d x,y: %d %d w,h: %d %d%s",
xevent->xexpose.window, xevent->xexpose.count,
xevent->xexpose.x, xevent->xexpose.y,
xevent->xexpose.width, xevent->xexpose.height,
event->any.send_event ? " (send)" : ""));
{
GdkRectangle expose_rect;
expose_rect.x = xevent->xexpose.x + xoffset;
expose_rect.y = xevent->xexpose.y + yoffset;
expose_rect.width = xevent->xexpose.width;
expose_rect.height = xevent->xexpose.height;
if (return_exposes)
{
event->expose.type = GDK_EXPOSE;
event->expose.area = expose_rect;
event->expose.region = gdk_region_rectangle (&expose_rect);
event->expose.window = window;
event->expose.count = xevent->xexpose.count;
return_val = TRUE;
}
else
{
_gdk_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
return_val = FALSE;
}
return_val = FALSE;
}
break;
case GraphicsExpose:
{
GdkRectangle expose_rect;
GDK_NOTE (EVENTS,
g_message ("graphics expose:\tdrawable: %ld",
xevent->xgraphicsexpose.drawable));
expose_rect.x = xevent->xgraphicsexpose.x + xoffset;
expose_rect.y = xevent->xgraphicsexpose.y + yoffset;
expose_rect.width = xevent->xgraphicsexpose.width;
expose_rect.height = xevent->xgraphicsexpose.height;
if (return_exposes)
{
event->expose.type = GDK_EXPOSE;
event->expose.area = expose_rect;
event->expose.region = gdk_region_rectangle (&expose_rect);
event->expose.window = window;
event->expose.count = xevent->xgraphicsexpose.count;
return_val = TRUE;
}
else
{
_gdk_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
return_val = FALSE;
}
}
break;
case NoExpose:
GDK_NOTE (EVENTS,
g_message ("no expose:\t\tdrawable: %ld",
xevent->xnoexpose.drawable));
event->no_expose.type = GDK_NO_EXPOSE;
event->no_expose.window = window;
break;
case VisibilityNotify:
#ifdef G_ENABLE_DEBUG
if (gdk_debug_flags & GDK_DEBUG_EVENTS)
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
g_message ("visibility notify:\twindow: %ld none",
xevent->xvisibility.window);
break;
case VisibilityPartiallyObscured:
g_message ("visibility notify:\twindow: %ld partial",
xevent->xvisibility.window);
break;
case VisibilityUnobscured:
g_message ("visibility notify:\twindow: %ld full",
xevent->xvisibility.window);
break;
}
#endif /* G_ENABLE_DEBUG */
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));
event->any.type = GDK_DESTROY;
event->any.window = window;
return_val = window_private && !GDK_WINDOW_DESTROYED (window);
if (window && GDK_WINDOW_XID (window) != GDK_ROOT_WINDOW())
gdk_window_destroy_notify (window);
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 && GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_ICONIFIED);
if (gdk_xgrab_window == window_private)
gdk_xgrab_window = NULL;
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)"
: ""));
if (window &&
!GDK_WINDOW_DESTROYED (window) &&
(window_private->extension_events != 0))
_gdk_input_configure_event (&xevent->xconfigure, window);
if (!window || GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
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.x &&
!xevent->xconfigure.y &&
!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),
gdk_root_window,
0, 0,
&tx, &ty,
&child_window))
{
if (!gdk_error_trap_pop ())
{
event->configure.x = tx;
event->configure.y = ty;
}
}
else
gdk_error_trap_pop ();
}
else
{
event->configure.x = xevent->xconfigure.x;
event->configure.y = xevent->xconfigure.y;
}
window_private->x = event->configure.x;
window_private->y = event->configure.y;
GDK_WINDOW_IMPL_X11 (window_private->impl)->width = xevent->xconfigure.width;
GDK_WINDOW_IMPL_X11 (window_private->impl)->height = xevent->xconfigure.height;
if (window_private->resize_count >= 1)
{
window_private->resize_count -= 1;
if (window_private->resize_count == 0 &&
window == _gdk_moveresize_window)
_gdk_moveresize_configure_done ();
}
}
break;
case PropertyNotify:
GDK_NOTE (EVENTS,
gchar *atom = gdk_atom_name (xevent->xproperty.atom);
g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
xevent->xproperty.window,
xevent->xproperty.atom,
atom ? "\"" : "",
atom ? atom : "unknown",
atom ? "\"" : "");
g_free (atom);
);
event->property.type = GDK_PROPERTY_NOTIFY;
event->property.window = window;
event->property.atom = xevent->xproperty.atom;
event->property.time = xevent->xproperty.time;
event->property.state = xevent->xproperty.state;
if (wm_state_atom == 0)
wm_state_atom = gdk_atom_intern ("_NET_WM_STATE", FALSE);
if (wm_desktop_atom == 0)
wm_desktop_atom = gdk_atom_intern ("_NET_WM_DESKTOP", FALSE);
if (event->property.atom == wm_state_atom ||
event->property.atom == wm_desktop_atom)
{
/* If window state changed, then synthesize those events. */
gdk_check_wm_state_changed (event->property.window);
}
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 = 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 = xevent->xselectionrequest.selection;
event->selection.target = xevent->xselectionrequest.target;
event->selection.property = 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 = xevent->xselection.selection;
event->selection.target = xevent->xselection.target;
event->selection.property = 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;
GDK_NOTE (EVENTS,
g_message ("client message:\twindow: %ld",
xevent->xclient.window));
tmp_list = client_filters;
while (tmp_list)
{
GdkClientFilter *filter = tmp_list->data;
if (filter->type == xevent->xclient.message_type)
{
result = (*filter->function) (xevent, event, filter->data);
break;
}
tmp_list = tmp_list->next;
}
switch (result)
{
case GDK_FILTER_REMOVE:
return_val = FALSE;
break;
case GDK_FILTER_TRANSLATE:
return_val = TRUE;
break;
case GDK_FILTER_CONTINUE:
/* Send unknown ClientMessage's on to Gtk for it to use */
event->client.type = GDK_CLIENT_EVENT;
event->client.window = window;
event->client.message_type = xevent->xclient.message_type;
event->client.data_format = xevent->xclient.format;
memcpy(&event->client.data, &xevent->xclient.data,
sizeof(event->client.data));
}
}
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_serial;
return_val = FALSE;
break;
#ifdef HAVE_XKB
case XkbMapNotify:
++_gdk_keymap_serial;
return_val = FALSE;
break;
#endif
default:
/* 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)
gdk_window_ref (event->any.window);
if (((event->any.type == GDK_ENTER_NOTIFY) ||
(event->any.type == GDK_LEAVE_NOTIFY)) &&
(event->crossing.subwindow != NULL))
gdk_window_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)
gdk_window_unref (window);
return return_val;
}
GdkFilterReturn
gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
XEvent *xevent = (XEvent *)xev;
if ((Atom) xevent->xclient.data.l[0] == gdk_wm_delete_window)
{
/* The delete window request specifies a window
* to delete. We don't actually destroy the
* window because "it is only a request". (The
* window might contain vital data that the
* program does not want destroyed). Instead
* the event is passed along to the program,
* which should then destroy the window.
*/
GDK_NOTE (EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window));
event->any.type = GDK_DELETE;
return GDK_FILTER_TRANSLATE;
}
else if ((Atom) xevent->xclient.data.l[0] == gdk_wm_take_focus)
{
GdkWindow *win = event->any.window;
Window focus_win = GDK_WINDOW_IMPL_X11(((GdkWindowObject *)win)->impl)->focus_window;
/* There is no way of knowing reliably whether we are viewable so we need
* to trap errors so we don't cause a BadMatch.
*/
gdk_error_trap_push ();
XSetInputFocus (GDK_WINDOW_XDISPLAY (win),
focus_win,
RevertToParent,
xevent->xclient.data.l[1]);
XSync (GDK_WINDOW_XDISPLAY (win), False);
gdk_error_trap_pop ();
}
else if ((Atom) xevent->xclient.data.l[0] == gdk_atom_intern ("_NET_WM_PING", FALSE))
{
XEvent xev = *xevent;
xev.xclient.window = gdk_root_window;
XSendEvent (gdk_display, gdk_root_window, False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
}
return GDK_FILTER_REMOVE;
}
#if 0
static Bool
gdk_event_get_type (Display *display,
XEvent *xevent,
XPointer arg)
{
GdkEvent event;
GdkPredicate *pred;
if (gdk_event_translate (&event, xevent, FALSE))
{
pred = (GdkPredicate*) arg;
return (* pred->func) (&event, pred->data);
}
return FALSE;
}
#endif
void
gdk_events_queue (void)
{
GList *node;
GdkEvent *event;
XEvent xevent;
while (!gdk_event_queue_find_first() && XPending (gdk_display))
{
XNextEvent (gdk_display, &xevent);
switch (xevent.type)
{
case KeyPress:
case KeyRelease:
break;
default:
if (XFilterEvent (&xevent, None))
continue;
}
event = gdk_event_new ();
event->any.type = GDK_NOTHING;
event->any.window = NULL;
event->any.send_event = xevent.xany.send_event ? TRUE : FALSE;
((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING;
gdk_event_queue_append (event);
node = gdk_queued_tail;
if (gdk_event_translate (event, &xevent, FALSE))
{
((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING;
}
else
{
gdk_event_queue_remove_link (node);
g_list_free_1 (node);
gdk_event_free (event);
}
}
}
static gboolean
gdk_event_prepare (GSource *source,
gint *timeout)
{
gboolean retval;
GDK_THREADS_ENTER ();
*timeout = -1;
retval = (gdk_event_queue_find_first () != NULL) || XPending (gdk_display);
GDK_THREADS_LEAVE ();
return retval;
}
static gboolean
gdk_event_check (GSource *source)
{
gboolean retval;
GDK_THREADS_ENTER ();
if (event_poll_fd.revents & G_IO_IN)
retval = (gdk_event_queue_find_first () != NULL) || XPending (gdk_display);
else
retval = FALSE;
GDK_THREADS_LEAVE ();
return retval;
}
static gboolean
gdk_event_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
GdkEvent *event;
GDK_THREADS_ENTER ();
gdk_events_queue();
event = gdk_event_unqueue();
if (event)
{
if (gdk_event_func)
(*gdk_event_func) (event, gdk_event_data);
gdk_event_free (event);
}
GDK_THREADS_LEAVE ();
return TRUE;
}
/* Sends a ClientMessage to all toplevel client windows */
gboolean
gdk_event_send_client_message (GdkEvent *event, guint32 xid)
{
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;
sev.xclient.format = event->client.data_format;
sev.xclient.window = xid;
memcpy(&sev.xclient.data, &event->client.data, sizeof(sev.xclient.data));
sev.xclient.message_type = event->client.message_type;
return gdk_send_xevent (xid, False, NoEventMask, &sev);
}
/* Sends a ClientMessage to all toplevel client windows */
gboolean
gdk_event_send_client_message_to_all_recurse (XEvent *xev,
guint32 xid,
guint level)
{
static GdkAtom wm_state_atom = GDK_NONE;
Atom type = None;
int format;
unsigned long nitems, after;
unsigned char *data;
Window *ret_children, ret_root, ret_parent;
unsigned int ret_nchildren;
gint old_warnings = gdk_error_warnings;
gboolean send = FALSE;
gboolean found = FALSE;
int i;
if (!wm_state_atom)
wm_state_atom = gdk_atom_intern ("WM_STATE", FALSE);
gdk_error_warnings = FALSE;
gdk_error_code = 0;
XGetWindowProperty (gdk_display, xid, wm_state_atom, 0, 0, False, AnyPropertyType,
&type, &format, &nitems, &after, &data);
if (gdk_error_code)
{
gdk_error_warnings = old_warnings;
return FALSE;
}
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, xid, &ret_root, &ret_parent,
&ret_children, &ret_nchildren) != True ||
gdk_error_code)
{
gdk_error_warnings = old_warnings;
return FALSE;
}
for(i = 0; i < ret_nchildren; i++)
if (gdk_event_send_client_message_to_all_recurse (xev, ret_children[i], level + 1))
found = TRUE;
XFree (ret_children);
}
if (send || (!found && (level == 1)))
{
xev->xclient.window = xid;
gdk_send_xevent (xid, False, NoEventMask, xev);
}
gdk_error_warnings = old_warnings;
return (send || found);
}
void
gdk_event_send_clientmessage_toall (GdkEvent *event)
{
XEvent sev;
gint old_warnings = gdk_error_warnings;
g_return_if_fail(event != NULL);
/* Set up our event to send, with the exception of its target window */
sev.xclient.type = ClientMessage;
sev.xclient.display = gdk_display;
sev.xclient.format = event->client.data_format;
memcpy(&sev.xclient.data, &event->client.data, sizeof(sev.xclient.data));
sev.xclient.message_type = event->client.message_type;
gdk_event_send_client_message_to_all_recurse(&sev, gdk_root_window, 0);
gdk_error_warnings = old_warnings;
}
/*
*--------------------------------------------------------------
* 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)
{
XSync (gdk_display, False);
}
static GdkAtom timestamp_prop_atom = 0;
static Bool
timestamp_predicate (Display *display,
XEvent *xevent,
XPointer arg)
{
Window xwindow = GPOINTER_TO_UINT (arg);
if (xevent->type == PropertyNotify &&
xevent->xproperty.window == xwindow &&
xevent->xproperty.atom == timestamp_prop_atom)
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;
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
g_return_val_if_fail (!GDK_WINDOW_DESTROYED (window), 0);
if (!timestamp_prop_atom)
timestamp_prop_atom = gdk_atom_intern ("GDK_TIMESTAMP_PROP", FALSE);
xdisplay = GDK_WINDOW_XDISPLAY (window);
xwindow = GDK_WINDOW_XWINDOW (window);
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;
}
gboolean
gdk_net_wm_supports (GdkAtom property)
{
static GdkAtom wmspec_check_atom = 0;
static GdkAtom wmspec_supported_atom = 0;
static GdkAtom *atoms = NULL;
static gulong n_atoms = 0;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
Window *xwindow;
gulong i;
if (wmspec_check_window != None)
{
if (atoms == NULL)
return FALSE;
i = 0;
while (i < n_atoms)
{
if (atoms[i] == property)
return TRUE;
++i;
}
return FALSE;
}
if (atoms)
XFree (atoms);
atoms = NULL;
n_atoms = 0;
/* This function is very slow on every call if you are not running a
* spec-supporting WM. For now not optimized, because it isn't in
* any critical code paths, but if you used it somewhere that had to
* be fast you want to avoid "GTK is slow with old WMs" complaints.
* Probably at that point the function should be changed to query
* _NET_SUPPORTING_WM_CHECK only once every 10 seconds or something.
*/
if (wmspec_check_atom == 0)
wmspec_check_atom = gdk_atom_intern ("_NET_SUPPORTING_WM_CHECK", FALSE);
if (wmspec_supported_atom == 0)
wmspec_supported_atom = gdk_atom_intern ("_NET_SUPPORTED", FALSE);
XGetWindowProperty (gdk_display, gdk_root_window,
wmspec_check_atom, 0, G_MAXLONG,
False, XA_WINDOW, &type, &format, &nitems,
&bytes_after, (guchar **)&xwindow);
if (type != XA_WINDOW)
return FALSE;
gdk_error_trap_push ();
/* Find out if this WM goes away, so we can reset everything. */
XSelectInput (gdk_display, *xwindow,
StructureNotifyMask);
gdk_flush ();
if (gdk_error_trap_pop ())
{
XFree (xwindow);
return FALSE;
}
XGetWindowProperty (gdk_display, gdk_root_window,
wmspec_supported_atom, 0, G_MAXLONG,
False, XA_ATOM, &type, &format, &n_atoms,
&bytes_after, (guchar **)&atoms);
if (type != XA_ATOM)
return FALSE;
wmspec_check_window = *xwindow;
XFree (xwindow);
/* since wmspec_check_window != None this isn't infinite. ;-) */
return gdk_net_wm_supports (property);
}
static struct
{
const char *xsettings_name;
const char *gdk_name;
} settings_map[] = {
{ "Net/DoubleClickTime", "gtk-double-click-timeout" },
{ "Net/DragThreshold", "gtk-drag-threshold" }
};
static void
gdk_xsettings_notify_cb (const char *name,
XSettingsAction action,
XSettingsSetting *setting,
void *data)
{
GdkEvent new_event;
int i;
new_event.type = GDK_SETTING;
new_event.setting.window = NULL;
new_event.setting.send_event = FALSE;
new_event.setting.name = NULL;
for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++)
if (strcmp (settings_map[i].xsettings_name, name) == 0)
{
new_event.setting.name = g_strdup (settings_map[i].gdk_name);
break;
}
if (!new_event.setting.name)
return;
switch (action)
{
case XSETTINGS_ACTION_NEW:
new_event.setting.action = GDK_SETTING_ACTION_NEW;
break;
case XSETTINGS_ACTION_CHANGED:
new_event.setting.action = GDK_SETTING_ACTION_CHANGED;
break;
case XSETTINGS_ACTION_DELETED:
new_event.setting.action = GDK_SETTING_ACTION_DELETED;
break;
}
gdk_event_put (&new_event);
}
static gboolean
check_transform (const gchar *xsettings_name,
GType src_type,
GType dest_type)
{
if (!g_value_type_transformable (src_type, dest_type))
{
g_warning ("Cannot tranform xsetting %s of type %s to type %s\n",
xsettings_name,
g_type_name (src_type),
g_type_name (dest_type));
return FALSE;
}
else
return TRUE;
}
gboolean
gdk_setting_get (const gchar *name,
GValue *value)
{
const char *xsettings_name = NULL;
XSettingsResult result;
XSettingsSetting *setting;
gboolean success = FALSE;
gint i;
for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++)
if (strcmp (settings_map[i].gdk_name, name) == 0)
{
xsettings_name = settings_map[i].xsettings_name;
break;
}
if (!xsettings_name)
return FALSE;
result = xsettings_client_get_setting (xsettings_client, xsettings_name, &setting);
if (result != XSETTINGS_SUCCESS)
return FALSE;
switch (setting->type)
{
case XSETTINGS_TYPE_INT:
if (check_transform (xsettings_name, G_TYPE_INT, G_VALUE_TYPE (value)))
{
g_value_set_int (value, setting->data.v_int);
success = TRUE;
}
break;
case XSETTINGS_TYPE_STRING:
if (check_transform (xsettings_name, G_TYPE_STRING, G_VALUE_TYPE (value)))
{
g_value_set_string (value, setting->data.v_string);
success = TRUE;
}
break;
case XSETTINGS_TYPE_COLOR:
if (!check_transform (xsettings_name, GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
{
GdkColor 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 (value, &color);
success = TRUE;
}
break;
}
xsettings_setting_free (setting);
return success;
}
GdkFilterReturn
gdk_xsettings_client_event_filter (GdkXEvent *xevent,
GdkEvent *event,
gpointer data)
{
if (xsettings_client_process_event (xsettings_client, (XEvent *)xevent))
return GDK_FILTER_REMOVE;
else
return GDK_FILTER_CONTINUE;
}
static void
gdk_xsettings_watch_cb (Window window,
Bool is_start,
long mask,
void *cb_data)
{
GdkWindow *gdkwin;
gdkwin = gdk_window_lookup (window);
if (is_start)
gdk_window_add_filter (gdkwin, gdk_xsettings_client_event_filter, NULL);
else
gdk_window_remove_filter (gdkwin, gdk_xsettings_client_event_filter, NULL);
}
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