AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
72f1116387
gtk2/gdk/x11/gdkevents-x11.c
Tor Lillqvist 63f745738d gdk/win32/gdkprivate-win32.h New flags _gdk_input_locale_is_ime and 
2003-07-25  Tor Lillqvist  <tml@iki.fi>

	* gdk/win32/gdkprivate-win32.h
	* gdk/win32/gdkglobals-win32.c: New flags _gdk_input_locale_is_ime
	and _gdk_keyboard_has_altgr.

	* gdk/win32/gdkevents-win32.c: Lots of changes. Most important
	ones detailled here.

	Code that has been ifdeffed out for a long time removed. Remove
	some really old doc comments that were left behind for some public
	functions, the official ones are in the X11 backend anyway. Change
	GDK_WINDOW_OBJECT() calls to GdkWindowObject casts. Reformat
	multi-line boolean expressions to have the operators at ends of
	lines.

	As mouse capture with SetCapture() indeed seems to work OK, no
	need to have the correspoinding macro USE_SETCAPTURE and ifdefs.

	Ifdef out the gdk-ping-msg stuff. I don't remember why it was
	needed at some time, and things seem to work fine now without
	(knock on wood).

	Ifdef out the search for some Latin locale keyboard layout being
	loaded. Not used currently, but might be needed after all, if we
	decide that we want to be able to generate ASCII control character
	events with a non-Latin keyboard.

	(assign_object): New helper function, handles the g_object_ref()
	and unref() calls when assigning GObject pointers.

	(generate_crossing_events): Also generate the GDK_NOTIFY_INTERIOR
	enter event when the pointer has moved to an ancestor window. Was
	left out by mistake.

	(gdk_window_is_ancestor): Renamed from gdk_window_is_child().

	(gdk_pointer_grab, gdk_pointer_ungrab): Implement the confine_to
	functionality, using ClipCursor().

	(find_window_for_mouse_event): Splice part of code into new
	function find_real_window_for_grabbed_mouse_event().

	(fixup_event, append_event, apply_filters): New functions, code
	refactored out from elsewhere.

	(synthesize_enter_or_leave_event, synthesize_leave_event,
	synthesize_enter_event,
	synthesize_leave_events,synthesize_enter_events): Also take a
	GdkCrossingMode parameter, in preparation to generating
	GDK_CROSSING_GRAB and GDK_CROSSING_UNGRAB events.

	(fixup_event, append_event, fill_key_event_string): New functions,
	code refactoring.

	(vk_from_char, build_keypress_event, build_keyrelease_event):
	Removed as part of dropping WM_CHAR handling.

	(build_key_event_state,gdk_event_translate): Call
	GetKeyboardState(), once, for each keyboard message, instead of
	several calls to GetKeyState() here and there.

	(gdk_event_translate): Fix bugs #104516, #104662, #115902. While
	at it, do some major refactoring, and some fixes for potential
	problems noticed while going through the code.

	Don't handle WM_CHAR at all. Only handle WM_KEYDOWN and
	WM_KEYUP. Don't need the state variables related to whether to
	wait for WM_CHAR or not, and whether the current key is
	AltGr. Remove lots of complexity. Thus don't need the
	use_ime_composition flag.

	Not handling WM_CHAR means dead key handling will have to be taken
	care of by GTK, but that seems to work fine, so no worry.

	Another side-effect is that Alt+keypad digits don't work any
	longer, but it's better to learn to use GTK's ISO14755 support is
	anyway.

	Be more careful in checking whether AltGr is involved. Only
	attempt to handle it if the keyboard actually has it. And
	explicitly check for *left* Control plus *right* Alt being
	pressed. Still, allow (left) Alt and/or (right) Control with AltGr
	chars.

	Handle keys using similar code as in the X11 backend. As we have
	built a keymap in gdkkeys-win32.c anyway, use it by calling
	gdk_keymap_translate_keyboard_state() to look up the keysym from
	the virtual key code and keyboard state. Build the key event
	string in exactly the same way as the X11 backend.

	If an IME is being used, don't generate GDK events for keys
	between receiving WM_IME_STARTCOMPOSITION and
	WM_IME_ENDCOMPOSITION, as those keys are for the IME.

	For WM_IME_COMPOSITION, handle all the Unicode chars returned from
	the IME, not just the first one.

	gdk_event_translate() is still quite complex, could split the
	message handler cases out into separate functions.

	On mouse events, when the mouse is grabbed, use
	find_real_window_for_grabbed_mouse_event() in order to be able to
	generate correct crossing events.

	No longer take a pre-allocated GdkEvent as parameter. Instead,
	allocate events as needed and append them to the queue. (This is
	different from how gdk_event_translate() in the X11 backend
	works.) This change made the code much clearer, especially in the
	cases where we have to generate several GDK events for one Windows
	message.  Return FALSE if DefWindowProc() should be called, TRUE
	if not. If DefWindowProc() should not be called, also return the
	value to be returned from the window procedure.

	(Previously, the interaction with gdk_event_translate()'s caller
	was much more complex, when we had to indicate whether the
	already-queued event should be left in the queue or removed, and
	in addition also had to indicate whether to call DefWindowProc()
	or not, and what value to return from the window procedure if
	not.)

	Don't use a separate "private" variable required to be pointing to
	the GdkWindowObject of the "window" variable at all times. Just
	use casts, even if looks a bit uglier.

	Notice destroyed windows as early as possible, and break out of
	the messsage switch.

	Use _gdk_pointer_root as current_window when the pointer is
	outside GDK's top-level windows.

	On WM_INPUTLANGCHANGE, set _gdk_input_locale_is_ime as
	appropriate, based on ImmIsIME().

	(gdk_event_translate, gdk_event_send_client_message_for_display,
	gdk_screen_broadcast_client_message): Implement client messages.
	Use a registered Windows message to pass GDK client messages. Note
	that the amount of user data is restricted to four bytes, as it is
	carried in the LPARAM. (The WPARAM is used for the message type
	"atom".)

	(real_window_procedure): Adapt for new gdk_event_translate()
	interface.

	* gdk/win32/gdkmain-win32.c (_gdk_windowing_init): Set
	_gdk_input_locale_is_ime initially.

	* gdk/win32/gdkwindow-win32.c: Use g_object_ref()/unref() instead
	of g_colormap_ref()/unref().

	(gdk_window_new): Made code a bit more like the X11 one, pretend
	to handle screens (although we just have one for now).

	* gdk/x11/gdkevents-x11.c
	(gdk_event_send_client_message_for_display,
	gdk_screen_broadcast_client_message): Document the user data
	limitation on Win32.

	* gdk/win32/gdkevents-win32.c (print_event): More complete enter
	and leave notify detail output.

	* gdk/win32/gdkkeys-win32.c (update_keymap): Make dead keys
	visible to GDK and GTK. Store the corresponding GDK_dead_* keysym
	for those, so that the GtkIMContextCimple compose tables will
	work. Deduce if the keyboard layout has the AltGr key, and set the
	above flag accordingly.
2003-07-26 01:54:59 +00:00

2786 lines
75 KiB
C
Raw Blame History

/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gdk.h"
#include "gdkprivate-x11.h"
#include "gdkinternals.h"
#include "gdkx.h"
#include "gdkscreen-x11.h"
#include "gdkdisplay-x11.h"
#include "gdkasync.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 _GdkDisplaySource GdkDisplaySource;
typedef struct _GdkEventTypeX11 GdkEventTypeX11;
#define DOUBLE_CLICK_TIME 250
#define TRIPLE_CLICK_TIME 500
#define DOUBLE_CLICK_DIST 5
#define TRIPLE_CLICK_DIST 5
struct _GdkIOClosure
{
GdkInputFunction function;
GdkInputCondition condition;
GdkDestroyNotify notify;
gpointer data;
};
struct _GdkDisplaySource
{
GSource source;
GdkDisplay *display;
GPollFD event_poll_fd;
};
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 void gdk_xsettings_watch_cb (Window window,
Bool is_start,
long mask,
void *cb_data);
static void gdk_xsettings_notify_cb (const char *name,
XSettingsAction action,
XSettingsSetting *setting,
void *data);
/* Private variable declarations
*/
static GList *display_sources;
static GSourceFuncs event_funcs = {
gdk_event_prepare,
gdk_event_check,
gdk_event_dispatch,
NULL
};
static GSource *
gdk_display_source_new (GdkDisplay *display)
{
GSource *source = g_source_new (&event_funcs, sizeof (GdkDisplaySource));
GdkDisplaySource *display_source = (GdkDisplaySource *)source;
display_source->display = display;
return source;
}
static gboolean
gdk_check_xpending (GdkDisplay *display)
{
return XPending (GDK_DISPLAY_XDISPLAY (display));
}
/*********************************************
* Functions for maintaining the event queue *
*********************************************/
void
_gdk_x11_events_init_screen (GdkScreen *screen)
{
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
/* Keep a flag to avoid extra notifies that we don't need
*/
screen_x11->xsettings_in_init = TRUE;
screen_x11->xsettings_client = xsettings_client_new (screen_x11->xdisplay,
screen_x11->screen_num,
gdk_xsettings_notify_cb,
gdk_xsettings_watch_cb,
screen);
screen_x11->xsettings_in_init = FALSE;
}
void
_gdk_x11_events_uninit_screen (GdkScreen *screen)
{
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
xsettings_client_destroy (screen_x11->xsettings_client);
screen_x11->xsettings_client = NULL;
}
void
_gdk_events_init (GdkDisplay *display)
{
GSource *source;
GdkDisplaySource *display_source;
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
int connection_number = ConnectionNumber (display_x11->xdisplay);
GDK_NOTE (MISC, g_message ("connection number: %d", connection_number));
source = display_x11->event_source = gdk_display_source_new (display);
display_source = (GdkDisplaySource*) source;
g_source_set_priority (source, GDK_PRIORITY_EVENTS);
display_source->event_poll_fd.fd = connection_number;
display_source->event_poll_fd.events = G_IO_IN;
g_source_add_poll (source, &display_source->event_poll_fd);
g_source_set_can_recurse (source, TRUE);
g_source_attach (source, NULL);
display_sources = g_list_prepend (display_sources,display_source);
gdk_display_add_client_message_filter (
display,
gdk_atom_intern ("WM_PROTOCOLS", FALSE),
gdk_wm_protocols_filter,
NULL);
}
/**
* gdk_events_pending:
*
* Checks if any events are ready to be processed for any display.
*
* Return value: %TRUE if any events are pending.
**/
gboolean
gdk_events_pending (void)
{
GList *tmp_list;
for (tmp_list = display_sources; tmp_list; tmp_list = tmp_list->next)
{
GdkDisplaySource *tmp_source = tmp_list->data;
GdkDisplay *display = tmp_source->display;
if (_gdk_event_queue_find_first (display))
return TRUE;
}
for (tmp_list = display_sources; tmp_list; tmp_list = tmp_list->next)
{
GdkDisplaySource *tmp_source = tmp_list->data;
GdkDisplay *display = tmp_source->display;
if (gdk_check_xpending (display))
return TRUE;
}
return FALSE;
}
static Bool
graphics_expose_predicate (Display *display,
XEvent *xevent,
XPointer arg)
{
if (xevent->xany.window == GDK_DRAWABLE_XID ((GdkDrawable *)arg) &&
(xevent->xany.type == GraphicsExpose ||
xevent->xany.type == NoExpose))
return True;
else
return False;
}
/**
* gdk_event_get_graphics_expose:
* @window: the #GdkWindow to wait for the events for.
*
* Waits for a GraphicsExpose or NoExpose event from the X server.
* This is used in the #GtkText and #GtkCList widgets in GTK+ to make sure any
* GraphicsExpose events are handled before the widget is scrolled.
*
* Return value: a #GdkEventExpose if a GraphicsExpose was received, or %NULL if a
* NoExpose event was received.
**/
GdkEvent*
gdk_event_get_graphics_expose (GdkWindow *window)
{
XEvent xevent;
GdkEvent *event;
g_return_val_if_fail (window != NULL, NULL);
XIfEvent (GDK_WINDOW_XDISPLAY (window), &xevent,
graphics_expose_predicate, (XPointer) window);
if (xevent.xany.type == GraphicsExpose)
{
event = gdk_event_new (GDK_NOTHING);
if (gdk_event_translate (GDK_WINDOW_DISPLAY (window), event,
&xevent, TRUE))
return event;
else
gdk_event_free (event);
}
return NULL;
}
static gint
gdk_event_apply_filters (XEvent *xevent,
GdkEvent *event,
GList *filters)
{
GList *tmp_list;
GdkFilterReturn result;
tmp_list = filters;
while (tmp_list)
{
GdkEventFilter *filter = (GdkEventFilter*) tmp_list->data;
tmp_list = tmp_list->next;
result = filter->function (xevent, event, filter->data);
if (result != GDK_FILTER_CONTINUE)
return result;
}
return GDK_FILTER_CONTINUE;
}
/**
* gdk_display_add_client_message_filter:
* @display: a #GdkDisplay for which this message filter applies
* @message_type: the type of ClientMessage events to receive.
* This will be checked against the @message_type field
* of the XClientMessage event struct.
* @func: the function to call to process the event.
* @data: user data to pass to @func.
*
* Adds a filter to be called when X ClientMessage events are received.
*
* Since: 2.2
**/
void
gdk_display_add_client_message_filter (GdkDisplay *display,
GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
GdkClientFilter *filter;
g_return_if_fail (GDK_IS_DISPLAY (display));
filter = g_new (GdkClientFilter, 1);
filter->type = message_type;
filter->function = func;
filter->data = data;
GDK_DISPLAY_X11(display)->client_filters =
g_list_prepend (GDK_DISPLAY_X11 (display)->client_filters,
filter);
}
/**
* gdk_add_client_message_filter:
* @message_type: the type of ClientMessage events to receive. This will be
* checked against the <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;
if (toplevel->have_sticky)
{
gulong *desktop;
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, (guchar **)&desktop);
if (type != None)
{
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;
Atom *atoms = NULL;
gulong i;
gboolean had_sticky = toplevel->have_sticky;
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, (guchar **)&atoms);
if (type != None)
{
Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
i = 0;
while (i < nitems)
{
if (atoms[i] == sticky_atom)
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 void
set_screen_from_root (GdkDisplay *display,
GdkEvent *event,
Window xrootwin)
{
GdkScreen *screen;
screen = _gdk_x11_display_screen_for_xrootwin (display, xrootwin);
g_assert (screen);
gdk_event_set_screen (event, screen);
}
static void
translate_key_event (GdkDisplay *display,
GdkEvent *event,
XEvent *xevent)
{
GdkKeymap *keymap = gdk_keymap_get_for_display (display);
gunichar c = 0;
guchar buf[7];
event->key.type = xevent->xany.type == KeyPress ? GDK_KEY_PRESS : GDK_KEY_RELEASE;
event->key.time = xevent->xkey.time;
event->key.state = (GdkModifierType) xevent->xkey.state;
event->key.group = _gdk_x11_get_group_for_state (display, xevent->xkey.state);
event->key.hardware_keycode = xevent->xkey.keycode;
event->key.keyval = GDK_VoidSymbol;
gdk_keymap_translate_keyboard_state (keymap,
event->key.hardware_keycode,
event->key.state,
event->key.group,
&event->key.keyval,
NULL, NULL, NULL);
/* Fill in event->string crudely, since various programs
* depend on it.
*/
event->key.string = NULL;
if (event->key.keyval != GDK_VoidSymbol)
c = gdk_keyval_to_unicode (event->key.keyval);
if (c)
{
gsize bytes_written;
gint len;
/* Apply the control key - Taken from Xlib
*/
if (event->key.state & GDK_CONTROL_MASK)
{
if ((c >= '@' && c < '\177') || c == ' ') c &= 0x1F;
else if (c == '2')
{
event->key.string = g_memdup ("\0\0", 2);
event->key.length = 1;
buf[0] = '\0';
goto out;
}
else if (c >= '3' && c <= '7') c -= ('3' - '\033');
else if (c == '8') c = '\177';
else if (c == '/') c = '_' & 0x1F;
}
len = g_unichar_to_utf8 (c, buf);
buf[len] = '\0';
event->key.string = g_locale_from_utf8 (buf, len,
NULL, &bytes_written,
NULL);
if (event->key.string)
event->key.length = bytes_written;
}
else if (event->key.keyval == GDK_Escape)
{
event->key.length = 1;
event->key.string = g_strdup ("\033");
}
else if (event->key.keyval == GDK_Return ||
event->key.keyval == GDK_KP_Enter)
{
event->key.length = 1;
event->key.string = g_strdup ("\r");
}
if (!event->key.string)
{
event->key.length = 0;
event->key.string = g_strdup ("");
}
out:
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
{
g_message ("%s:\t\twindow: %ld key: %12s %d",
event->type == GDK_KEY_PRESS ? "key press " : "key release",
xevent->xkey.window,
event->key.keyval ? gdk_keyval_name (event->key.keyval) : "(none)",
event->key.keyval);
if (event->key.length > 0)
g_message ("\t\tlength: %4d string: \"%s\"",
event->key.length, buf);
}
#endif /* G_ENABLE_DEBUG */
return;
}
void
_gdk_x11_register_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;
case DestroyNotify:
*event_window = event->xdestroywindow.window;
case UnmapNotify:
*event_window = event->xunmap.window;
case MapNotify:
*event_window = event->xmap.window;
case MapRequest:
*event_window = event->xmaprequest.window;
case ReparentNotify:
*event_window = event->xreparent.window;
case ConfigureNotify:
*event_window = event->xconfigure.window;
case ConfigureRequest:
*event_window = event->xconfigurerequest.window;
case GravityNotify:
*event_window = event->xgravity.window;
case CirculateNotify:
*event_window = event->xcirculate.window;
case CirculateRequest:
*event_window = event->xcirculaterequest.window;
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[][18] = {
"NotifyNormal",
"NotifyGrab",
"NotifyUngrab",
"NotifyWhileGrabbed"
};
static const char notify_details[][22] = {
"NotifyAncestor",
"NotifyVirtual",
"NotifyInferior",
"NotifyNonlinear",
"NotifyNonlinearVirtual",
"NotifyPointer",
"NotifyPointerRoot",
"NotifyDetailNone"
};
#endif
static gboolean
gdk_event_translate (GdkDisplay *display,
GdkEvent *event,
XEvent *xevent,
gboolean return_exposes)
{
GdkWindow *window;
GdkWindowObject *window_private;
GdkWindow *filter_window;
GdkWindowImplX11 *window_impl = NULL;
gboolean return_val;
gint xoffset, yoffset;
GdkScreen *screen = NULL;
GdkScreenX11 *screen_x11 = NULL;
GdkToplevelX11 *toplevel = NULL;
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
Window xwindow, filter_xwindow;
return_val = FALSE;
/* init these, since the done: block uses them */
window = NULL;
window_private = NULL;
event->any.window = NULL;
if (_gdk_default_filters)
{
/* Apply global filters */
GdkFilterReturn result;
result = gdk_event_apply_filters (xevent, event,
_gdk_default_filters);
if (result != GDK_FILTER_CONTINUE)
{
return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE;
goto done;
}
}
/* 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))
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)
{
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;
if (window)
{
_gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
}
else
{
xoffset = 0;
yoffset = 0;
}
switch (xevent->type)
{
case KeyPress:
if (window_private == NULL)
{
return_val = FALSE;
break;
}
translate_key_event (display, event, xevent);
break;
case KeyRelease:
if (window_private == NULL)
{
return_val = FALSE;
break;
}
/* Emulate detectable auto-repeat by checking to see
* if the next event is a key press with the same
* keycode and timestamp, and if so, ignoring the event.
*/
if (!display_x11->have_xkb_autorepeat && XPending (xevent->xkey.display))
{
XEvent next_event;
XPeekEvent (xevent->xkey.display, &next_event);
if (next_event.type == KeyPress &&
next_event.xkey.keycode == xevent->xkey.keycode &&
next_event.xkey.time == xevent->xkey.time)
{
return_val = FALSE;
break;
}
}
translate_key_event (display, event, xevent);
break;
case ButtonPress:
GDK_NOTE (EVENTS,
g_message ("button press:\t\twindow: %ld x,y: %d %d button: %d",
xevent->xbutton.window,
xevent->xbutton.x, xevent->xbutton.y,
xevent->xbutton.button));
if (window_private == NULL ||
((window_private->extension_events != 0) &&
display_x11->input_ignore_core))
{
return_val = FALSE;
break;
}
/* If we get a ButtonPress event where the button is 4 or 5,
it's a Scroll event */
switch (xevent->xbutton.button)
{
case 4: /* up */
case 5: /* down */
case 6: /* left */
case 7: /* right */
event->scroll.type = GDK_SCROLL;
if (xevent->xbutton.button == 4)
event->scroll.direction = GDK_SCROLL_UP;
else if (xevent->xbutton.button == 5)
event->scroll.direction = GDK_SCROLL_DOWN;
else if (xevent->xbutton.button == 6)
event->scroll.direction = GDK_SCROLL_LEFT;
else
event->scroll.direction = GDK_SCROLL_RIGHT;
event->scroll.window = window;
event->scroll.time = xevent->xbutton.time;
event->scroll.x = xevent->xbutton.x + xoffset;
event->scroll.y = xevent->xbutton.y + yoffset;
event->scroll.x_root = (gfloat)xevent->xbutton.x_root;
event->scroll.y_root = (gfloat)xevent->xbutton.y_root;
event->scroll.state = (GdkModifierType) xevent->xbutton.state;
event->scroll.device = display->core_pointer;
set_screen_from_root (display, event, xevent->xbutton.root);
break;
default:
event->button.type = GDK_BUTTON_PRESS;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x + xoffset;
event->button.y = xevent->xbutton.y + yoffset;
event->button.x_root = (gfloat)xevent->xbutton.x_root;
event->button.y_root = (gfloat)xevent->xbutton.y_root;
event->button.axes = NULL;
event->button.state = (GdkModifierType) xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.device = display->core_pointer;
set_screen_from_root (display, event, xevent->xbutton.root);
_gdk_event_button_generate (display, event);
break;
}
break;
case ButtonRelease:
GDK_NOTE (EVENTS,
g_message ("button release:\twindow: %ld x,y: %d %d button: %d",
xevent->xbutton.window,
xevent->xbutton.x, xevent->xbutton.y,
xevent->xbutton.button));
if (window_private == NULL ||
((window_private->extension_events != 0) &&
display_x11->input_ignore_core))
{
return_val = FALSE;
break;
}
/* We treat button presses as scroll wheel events, so ignore the release */
if (xevent->xbutton.button == 4 || xevent->xbutton.button == 5 ||
xevent->xbutton.button == 6 || xevent->xbutton.button ==7)
{
return_val = FALSE;
break;
}
event->button.type = GDK_BUTTON_RELEASE;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x + xoffset;
event->button.y = xevent->xbutton.y + yoffset;
event->button.x_root = (gfloat)xevent->xbutton.x_root;
event->button.y_root = (gfloat)xevent->xbutton.y_root;
event->button.axes = NULL;
event->button.state = (GdkModifierType) xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.device = display->core_pointer;
set_screen_from_root (display, event, xevent->xbutton.root);
break;
case MotionNotify:
GDK_NOTE (EVENTS,
g_message ("motion notify:\t\twindow: %ld x,y: %d %d hint: %s",
xevent->xmotion.window,
xevent->xmotion.x, xevent->xmotion.y,
(xevent->xmotion.is_hint) ? "true" : "false"));
if (window_private == NULL ||
((window_private->extension_events != 0) &&
display_x11->input_ignore_core))
{
return_val = FALSE;
break;
}
event->motion.type = GDK_MOTION_NOTIFY;
event->motion.window = window;
event->motion.time = xevent->xmotion.time;
event->motion.x = xevent->xmotion.x + xoffset;
event->motion.y = xevent->xmotion.y + yoffset;
event->motion.x_root = (gfloat)xevent->xmotion.x_root;
event->motion.y_root = (gfloat)xevent->xmotion.y_root;
event->motion.axes = NULL;
event->motion.state = (GdkModifierType) xevent->xmotion.state;
event->motion.is_hint = xevent->xmotion.is_hint;
event->motion.device = display->core_pointer;
set_screen_from_root (display, event, xevent->xmotion.root);
break;
case EnterNotify:
GDK_NOTE (EVENTS,
g_message ("enter notify:\t\twindow: %ld detail: %d subwin: %ld",
xevent->xcrossing.window,
xevent->xcrossing.detail,
xevent->xcrossing.subwindow));
if (window_private == NULL)
{
return_val = FALSE;
break;
}
/* Handle focusing (in the case where no window manager is running */
if (toplevel &&
xevent->xcrossing.detail != NotifyInferior &&
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 + xoffset;
event->crossing.y = xevent->xcrossing.y + yoffset;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_root;
set_screen_from_root (display, event, xevent->xcrossing.root);
/* Translate the crossing mode into Gdk terms.
*/
switch (xevent->xcrossing.mode)
{
case NotifyNormal:
event->crossing.mode = GDK_CROSSING_NORMAL;
break;
case NotifyGrab:
event->crossing.mode = GDK_CROSSING_GRAB;
break;
case NotifyUngrab:
event->crossing.mode = GDK_CROSSING_UNGRAB;
break;
};
/* Translate the crossing detail into Gdk terms.
*/
switch (xevent->xcrossing.detail)
{
case NotifyInferior:
event->crossing.detail = GDK_NOTIFY_INFERIOR;
break;
case NotifyAncestor:
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
break;
case NotifyVirtual:
event->crossing.detail = GDK_NOTIFY_VIRTUAL;
break;
case NotifyNonlinear:
event->crossing.detail = GDK_NOTIFY_NONLINEAR;
break;
case NotifyNonlinearVirtual:
event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
break;
default:
event->crossing.detail = GDK_NOTIFY_UNKNOWN;
break;
}
event->crossing.focus = xevent->xcrossing.focus;
event->crossing.state = xevent->xcrossing.state;
break;
case LeaveNotify:
GDK_NOTE (EVENTS,
g_message ("leave notify:\t\twindow: %ld detail: %d subwin: %ld",
xevent->xcrossing.window,
xevent->xcrossing.detail, xevent->xcrossing.subwindow));
if (window_private == NULL)
{
return_val = FALSE;
break;
}
/* Handle focusing (in the case where no window manager is running */
if (toplevel &&
xevent->xcrossing.detail != NotifyInferior &&
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 + xoffset;
event->crossing.y = xevent->xcrossing.y + yoffset;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_root;
set_screen_from_root (display, event, xevent->xcrossing.root);
/* Translate the crossing mode into Gdk terms.
*/
switch (xevent->xcrossing.mode)
{
case NotifyNormal:
event->crossing.mode = GDK_CROSSING_NORMAL;
break;
case NotifyGrab:
event->crossing.mode = GDK_CROSSING_GRAB;
break;
case NotifyUngrab:
event->crossing.mode = GDK_CROSSING_UNGRAB;
break;
};
/* Translate the crossing detail into Gdk terms.
*/
switch (xevent->xcrossing.detail)
{
case NotifyInferior:
event->crossing.detail = GDK_NOTIFY_INFERIOR;
break;
case NotifyAncestor:
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
break;
case NotifyVirtual:
event->crossing.detail = GDK_NOTIFY_VIRTUAL;
break;
case NotifyNonlinear:
event->crossing.detail = GDK_NOTIFY_NONLINEAR;
break;
case NotifyNonlinearVirtual:
event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
break;
default:
event->crossing.detail = GDK_NOTIFY_UNKNOWN;
break;
}
event->crossing.focus = xevent->xcrossing.focus;
event->crossing.state = xevent->xcrossing.state;
break;
/* We only care about focus events that indicate that _this_
* window (not a ancestor or child) got or lost the focus
*/
case FocusIn:
GDK_NOTE (EVENTS,
g_message ("focus in:\t\twindow: %ld, detail: %s, mode: %s",
xevent->xfocus.window,
notify_details[xevent->xfocus.detail],
notify_modes[xevent->xfocus.mode]));
if (toplevel)
{
gboolean had_focus = HAS_FOCUS (toplevel);
switch (xevent->xfocus.detail)
{
case NotifyAncestor:
case NotifyNonlinear:
case NotifyVirtual:
case NotifyNonlinearVirtual:
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)
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 NotifyNonlinear:
case NotifyVirtual:
case NotifyNonlinearVirtual:
toplevel->has_focus_window = FALSE;
if (xevent->xfocus.mode != NotifyWhileGrabbed)
toplevel->has_focus = FALSE;
break;
case NotifyPointer:
if (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 + xoffset;
expose_rect.y = xevent->xexpose.y + yoffset;
expose_rect.width = xevent->xexpose.width;
expose_rect.height = xevent->xexpose.height;
if (return_exposes)
{
event->expose.type = GDK_EXPOSE;
event->expose.area = expose_rect;
event->expose.region = gdk_region_rectangle (&expose_rect);
event->expose.window = window;
event->expose.count = xevent->xexpose.count;
return_val = TRUE;
}
else
{
_gdk_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
return_val = FALSE;
}
return_val = FALSE;
}
break;
case GraphicsExpose:
{
GdkRectangle expose_rect;
GDK_NOTE (EVENTS,
g_message ("graphics expose:\tdrawable: %ld",
xevent->xgraphicsexpose.drawable));
if (window_private == NULL)
{
return_val = FALSE;
break;
}
expose_rect.x = xevent->xgraphicsexpose.x + xoffset;
expose_rect.y = xevent->xgraphicsexpose.y + yoffset;
expose_rect.width = xevent->xgraphicsexpose.width;
expose_rect.height = xevent->xgraphicsexpose.height;
if (return_exposes)
{
event->expose.type = GDK_EXPOSE;
event->expose.area = expose_rect;
event->expose.region = gdk_region_rectangle (&expose_rect);
event->expose.window = window;
event->expose.count = xevent->xgraphicsexpose.count;
return_val = TRUE;
}
else
{
_gdk_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
return_val = FALSE;
}
}
break;
case NoExpose:
GDK_NOTE (EVENTS,
g_message ("no expose:\t\tdrawable: %ld",
xevent->xnoexpose.drawable));
event->no_expose.type = GDK_NO_EXPOSE;
event->no_expose.window = window;
break;
case VisibilityNotify:
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
g_message ("visibility notify:\twindow: %ld none",
xevent->xvisibility.window);
break;
case VisibilityPartiallyObscured:
g_message ("visibility notify:\twindow: %ld partial",
xevent->xvisibility.window);
break;
case VisibilityUnobscured:
g_message ("visibility notify:\twindow: %ld full",
xevent->xvisibility.window);
break;
}
#endif /* G_ENABLE_DEBUG */
if (window_private == NULL)
{
return_val = FALSE;
break;
}
event->visibility.type = GDK_VISIBILITY_NOTIFY;
event->visibility.window = window;
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
break;
case VisibilityPartiallyObscured:
event->visibility.state = GDK_VISIBILITY_PARTIAL;
break;
case VisibilityUnobscured:
event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
break;
}
break;
case CreateNotify:
GDK_NOTE (EVENTS,
g_message ("create notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d parent: %ld ovr: %d",
xevent->xcreatewindow.window,
xevent->xcreatewindow.x,
xevent->xcreatewindow.y,
xevent->xcreatewindow.width,
xevent->xcreatewindow.height,
xevent->xcreatewindow.border_width,
xevent->xcreatewindow.parent,
xevent->xcreatewindow.override_redirect));
/* not really handled */
break;
case DestroyNotify:
GDK_NOTE (EVENTS,
g_message ("destroy notify:\twindow: %ld",
xevent->xdestroywindow.window));
/* Ignore DestroyNotify from SubstructureNotifyMask */
if (xevent->xdestroywindow.window == xevent->xdestroywindow.event)
{
event->any.type = GDK_DESTROY;
event->any.window = window;
return_val = window_private && !GDK_WINDOW_DESTROYED (window);
if (window && GDK_WINDOW_XID (window) != screen_x11->xroot_window)
gdk_window_destroy_notify (window);
}
else
return_val = FALSE;
break;
case UnmapNotify:
GDK_NOTE (EVENTS,
g_message ("unmap notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_UNMAP;
event->any.window = window;
/* If we are shown (not withdrawn) and get an unmap, it means we
* were iconified in the X sense. If we are withdrawn, and get
* an unmap, it means we hid the window ourselves, so we
* will have already flipped the iconified bit off.
*/
if (window)
{
if (GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_ICONIFIED);
_gdk_xgrab_check_unmap (window, xevent->xany.serial);
}
break;
case MapNotify:
GDK_NOTE (EVENTS,
g_message ("map notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_MAP;
event->any.window = window;
/* Unset iconified if it was set */
if (window && (((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_ICONIFIED))
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_ICONIFIED,
0);
break;
case ReparentNotify:
GDK_NOTE (EVENTS,
g_message ("reparent notify:\twindow: %ld x,y: %d %d parent: %ld ovr: %d",
xevent->xreparent.window,
xevent->xreparent.x,
xevent->xreparent.y,
xevent->xreparent.parent,
xevent->xreparent.override_redirect));
/* Not currently handled */
return_val = FALSE;
break;
case ConfigureNotify:
GDK_NOTE (EVENTS,
g_message ("configure notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d above: %ld ovr: %d%s",
xevent->xconfigure.window,
xevent->xconfigure.x,
xevent->xconfigure.y,
xevent->xconfigure.width,
xevent->xconfigure.height,
xevent->xconfigure.border_width,
xevent->xconfigure.above,
xevent->xconfigure.override_redirect,
!window
? " (discarding)"
: GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD
? " (discarding child)"
: xevent->xconfigure.event != xevent->xconfigure.window
? " (discarding substructure)"
: ""));
if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
_gdk_x11_screen_size_changed (screen, xevent);
if (window &&
xevent->xconfigure.event == xevent->xconfigure.window &&
!GDK_WINDOW_DESTROYED (window) &&
(window_private->extension_events != 0))
_gdk_input_configure_event (&xevent->xconfigure, window);
if (!window ||
xevent->xconfigure.event != xevent->xconfigure.window ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
return_val = FALSE;
else
{
event->configure.type = GDK_CONFIGURE;
event->configure.window = window;
event->configure.width = xevent->xconfigure.width;
event->configure.height = xevent->xconfigure.height;
if (!xevent->xconfigure.send_event &&
!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_impl->width = xevent->xconfigure.width;
window_impl->height = xevent->xconfigure.height;
if (window_private->resize_count >= 1)
{
window_private->resize_count -= 1;
if (window_private->resize_count == 0)
_gdk_moveresize_configure_done (display, window);
}
}
break;
case PropertyNotify:
GDK_NOTE (EVENTS,
g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
xevent->xproperty.window,
xevent->xproperty.atom,
"\"",
gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
"\""));
if (window_private == NULL)
{
return_val = FALSE;
break;
}
/* 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;
if (filter->type == message_type)
{
result = (*filter->function) (xevent, event, filter->data);
break;
}
tmp_list = tmp_list->next;
}
switch (result)
{
case GDK_FILTER_REMOVE:
return_val = FALSE;
break;
case GDK_FILTER_TRANSLATE:
return_val = TRUE;
break;
case GDK_FILTER_CONTINUE:
/* Send unknown ClientMessage's on to Gtk for it to use */
if (window_private == NULL)
{
return_val = FALSE;
}
else
{
event->client.type = GDK_CLIENT_EVENT;
event->client.window = window;
event->client.message_type = message_type;
event->client.data_format = xevent->xclient.format;
memcpy(&event->client.data, &xevent->xclient.data,
sizeof(event->client.data));
}
break;
}
}
break;
case MappingNotify:
GDK_NOTE (EVENTS,
g_message ("mapping notify"));
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping (&xevent->xmapping);
_gdk_keymap_keys_changed (display);
return_val = FALSE;
break;
default:
#ifdef HAVE_XKB
if (xevent->type == display_x11->xkb_event_type)
{
XkbEvent *xkb_event = (XkbEvent *)xevent;
switch (xkb_event->any.xkb_type)
{
case XkbNewKeyboardNotify:
case XkbMapNotify:
_gdk_keymap_keys_changed (display);
return_val = FALSE;
break;
case XkbStateNotify:
_gdk_keymap_state_changed (display);
break;
}
}
else
#endif
{
/* something else - (e.g., a Xinput event) */
if (window_private &&
!GDK_WINDOW_DESTROYED (window_private) &&
(window_private->extension_events != 0))
return_val = _gdk_input_other_event(event, xevent, window);
else
return_val = FALSE;
break;
}
}
done:
if (return_val)
{
if (event->any.window)
g_object_ref (event->any.window);
if (((event->any.type == GDK_ENTER_NOTIFY) ||
(event->any.type == GDK_LEAVE_NOTIFY)) &&
(event->crossing.subwindow != NULL))
g_object_ref (event->crossing.subwindow);
}
else
{
/* Mark this event as having no resources to be freed */
event->any.window = NULL;
event->any.type = GDK_NOTHING;
}
if (window)
g_object_unref (window);
return return_val;
}
static GdkFilterReturn
gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
XEvent *xevent = (XEvent *)xev;
GdkWindow *win = event->any.window;
GdkDisplay *display = GDK_WINDOW_DISPLAY (win);
if ((Atom) xevent->xclient.data.l[0] == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
{
/* The delete window request specifies a window
* to delete. We don't actually destroy the
* window because "it is only a request". (The
* window might contain vital data that the
* program does not want destroyed). Instead
* the event is passed along to the program,
* which should then destroy the window.
*/
GDK_NOTE (EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window));
event->any.type = GDK_DELETE;
return GDK_FILTER_TRANSLATE;
}
else if ((Atom) xevent->xclient.data.l[0] == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
/* There is no way of knowing reliably whether we are viewable;
* _gdk_x11_set_input_focus_safe() traps errors asynchronously.
*/
if (toplevel)
_gdk_x11_set_input_focus_safe (display, toplevel->focus_window,
RevertToParent,
xevent->xclient.data.l[1]);
}
else if ((Atom) xevent->xclient.data.l[0] == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
!_gdk_x11_display_is_root_window (display,
xevent->xclient.window))
{
XEvent xev = *xevent;
xev.xclient.window = GDK_WINDOW_XROOTWIN (win);
XSendEvent (GDK_WINDOW_XDISPLAY (win),
xev.xclient.window,
False,
SubstructureRedirectMask | SubstructureNotifyMask, &xev);
}
return GDK_FILTER_REMOVE;
}
void
_gdk_events_queue (GdkDisplay *display)
{
GList *node;
GdkEvent *event;
XEvent xevent;
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
while (!_gdk_event_queue_find_first(display) && XPending (xdisplay))
{
XNextEvent (xdisplay, &xevent);
switch (xevent.type)
{
case KeyPress:
case KeyRelease:
break;
default:
if (XFilterEvent (&xevent, None))
continue;
}
event = gdk_event_new (GDK_NOTHING);
event->any.window = NULL;
event->any.send_event = xevent.xany.send_event ? TRUE : FALSE;
((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING;
node = _gdk_event_queue_append (display, event);
if (gdk_event_translate (display, event, &xevent, FALSE))
{
((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING;
}
else
{
_gdk_event_queue_remove_link (display, node);
g_list_free_1 (node);
gdk_event_free (event);
}
}
}
static gboolean
gdk_event_prepare (GSource *source,
gint *timeout)
{
GdkDisplay *display = ((GdkDisplaySource*)source)->display;
gboolean retval;
GDK_THREADS_ENTER ();
*timeout = -1;
retval = (_gdk_event_queue_find_first (display) != NULL ||
gdk_check_xpending (display));
GDK_THREADS_LEAVE ();
return retval;
}
static gboolean
gdk_event_check (GSource *source)
{
GdkDisplaySource *display_source = (GdkDisplaySource*)source;
gboolean retval;
GDK_THREADS_ENTER ();
if (display_source->event_poll_fd.revents & G_IO_IN)
retval = (_gdk_event_queue_find_first (display_source->display) != NULL ||
gdk_check_xpending (display_source->display));
else
retval = FALSE;
GDK_THREADS_LEAVE ();
return retval;
}
static gboolean
gdk_event_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
GdkDisplay *display = ((GdkDisplaySource*)source)->display;
GdkEvent *event;
GDK_THREADS_ENTER ();
_gdk_events_queue (display);
event = _gdk_event_unqueue (display);
if (event)
{
if (_gdk_event_func)
(*_gdk_event_func) (event, _gdk_event_data);
gdk_event_free (event);
}
GDK_THREADS_LEAVE ();
return TRUE;
}
/**
* gdk_event_send_client_message_for_display:
* @display: the #GdkDisplay for the window where the message is to be sent.
* @event: the #GdkEvent to send, which should be a #GdkEventClient.
* @winid: the window to send the 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 */
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;
Window *xwindow;
/* This function is very slow on every call if you are not running a
* spec-supporting WM. For now not optimized, because it isn't in
* any critical code paths, but if you used it somewhere that had to
* be fast you want to avoid "GTK is slow with old WMs" complaints.
* Probably at that point the function should be changed to query
* _NET_SUPPORTING_WM_CHECK only once every 10 seconds or something.
*/
screen_x11 = GDK_SCREEN_X11 (screen);
display = screen_x11->display;
if (screen_x11->wmspec_check_window != None)
return; /* already have it */
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), screen_x11->xroot_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTING_WM_CHECK"),
0, G_MAXLONG, False, XA_WINDOW, &type, &format,
&n_items, &bytes_after, (guchar **) & xwindow);
if (type != XA_WINDOW)
return;
gdk_error_trap_push ();
/* Find out if this WM goes away, so we can reset everything. */
XSelectInput (screen_x11->xdisplay, *xwindow, StructureNotifyMask);
screen_x11->wmspec_check_window = *xwindow;
XFree (xwindow);
screen_x11->need_refetch_net_supported = TRUE;
screen_x11->need_refetch_wm_name = TRUE;
/* Careful, reentrancy */
_gdk_x11_screen_window_manager_changed (GDK_SCREEN (screen_x11));
}
/**
* gdk_x11_screen_get_window_manager_name:
* @screen: a #GdkScreen
*
* Returns the name of the window manager for @screen.
*
* Return value: the name of the window manager screen @screen, or
* "unknown" if the window manager is unknown. The string is owned by GDK
* and should not be freed.
*
* Since: 2.2
**/
const char*
gdk_x11_screen_get_window_manager_name (GdkScreen *screen)
{
GdkScreenX11 *screen_x11;
screen_x11 = GDK_SCREEN_X11 (screen);
fetch_net_wm_check_window (screen);
if (screen_x11->need_refetch_wm_name)
{
/* Get the name of the window manager */
screen_x11->need_refetch_wm_name = FALSE;
g_free (screen_x11->window_manager_name);
screen_x11->window_manager_name = g_strdup ("unknown");
if (screen_x11->wmspec_check_window != None)
{
Atom type;
gint format;
gulong n_items;
gulong bytes_after;
guchar *name;
name = NULL;
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (screen_x11->display),
screen_x11->wmspec_check_window,
gdk_x11_get_xatom_by_name_for_display (screen_x11->display,
"_NET_WM_NAME"),
0, G_MAXLONG, False,
gdk_x11_get_xatom_by_name_for_display (screen_x11->display,
"UTF8_STRING"),
&type, &format,
&n_items, &bytes_after,
(guchar **)&name);
gdk_display_sync (screen_x11->display);
gdk_error_trap_pop ();
if (name != NULL)
{
g_free (screen_x11->window_manager_name);
screen_x11->window_manager_name = g_strdup (name);
XFree (name);
}
}
}
return GDK_SCREEN_X11 (screen)->window_manager_name;
}
typedef struct _NetWmSupportedAtoms NetWmSupportedAtoms;
struct _NetWmSupportedAtoms
{
Atom *atoms;
gulong n_atoms;
};
/**
* gdk_x11_screen_supports_net_wm_hint:
* @screen: the relevant #GdkScreen.
* @property: a property atom.
*
* This function is specific to the X11 backend of GDK, and indicates
* whether the window manager supports a certain hint from the
* Extended Window Manager Hints Specification. You can find this
* specification on
* <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;
supported_atoms = g_object_get_data (G_OBJECT (screen), "gdk-net-wm-supported-atoms");
if (!supported_atoms)
{
supported_atoms = g_new0 (NetWmSupportedAtoms, 1);
g_object_set_data (G_OBJECT (screen), "gdk-net-wm-supported-atoms", supported_atoms);
}
fetch_net_wm_check_window (screen);
if (screen_x11->wmspec_check_window == None)
return FALSE;
if (screen_x11->need_refetch_net_supported)
{
/* WM has changed since we last got the supported list,
* refetch it.
*/
Atom type;
gint format;
gulong bytes_after;
screen_x11->need_refetch_net_supported = FALSE;
if (supported_atoms->atoms)
XFree (supported_atoms->atoms);
supported_atoms->atoms = NULL;
supported_atoms->n_atoms = 0;
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), screen_x11->xroot_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTED"),
0, G_MAXLONG, False, XA_ATOM, &type, &format,
&supported_atoms->n_atoms, &bytes_after,
(guchar **)&supported_atoms->atoms);
if (type != XA_ATOM)
return FALSE;
}
if (supported_atoms->atoms == NULL)
return FALSE;
i = 0;
while (i < supported_atoms->n_atoms)
{
if (supported_atoms->atoms[i] == gdk_x11_atom_to_xatom_for_display (display, property))
return TRUE;
++i;
}
return FALSE;
}
/**
* gdk_net_wm_supports:
* @property: a property atom.
*
* This function is specific to the X11 backend of GDK, and indicates
* whether the window manager for the default screen supports a certain
* hint from the Extended Window Manager Hints Specification. See
* gdk_x11_screen_supports_net_wm_hint() for complete details.
*
* Return value: %TRUE if the window manager supports @property
**/
gboolean
gdk_net_wm_supports (GdkAtom property)
{
return gdk_x11_screen_supports_net_wm_hint (gdk_screen_get_default (), property);
}
static struct
{
const char *xsettings_name;
const char *gdk_name;
} settings_map[] = {
{ "Net/DoubleClickTime", "gtk-double-click-time" },
{ "Net/DndDragThreshold", "gtk-dnd-drag-threshold" },
{ "Gtk/CanChangeAccels", "gtk-can-change-accels" },
{ "Gtk/ColorPalette", "gtk-color-palette" },
{ "Gtk/FontName", "gtk-font-name" },
{ "Gtk/IconSizes", "gtk-icon-sizes" },
{ "Gtk/KeyThemeName", "gtk-key-theme-name" },
{ "Gtk/ToolbarStyle", "gtk-toolbar-style" },
{ "Gtk/ToolbarIconSize", "gtk-toolbar-icon-size" },
{ "Gtk/IMPreeditStyle", "gtk-im-preedit-style" },
{ "Gtk/IMStatusStyle", "gtk-im-status-style" },
{ "Net/CursorBlink", "gtk-cursor-blink" },
{ "Net/CursorBlinkTime", "gtk-cursor-blink-time" },
{ "Net/ThemeName", "gtk-theme-name" },
{ "Net/IconThemeName", "gtk-icon-theme-name" },
};
static void
gdk_xsettings_notify_cb (const char *name,
XSettingsAction action,
XSettingsSetting *setting,
void *data)
{
GdkEvent new_event;
GdkScreen *screen = data;
GdkScreenX11 *screen_x11 = data;
int i;
if (screen_x11->xsettings_in_init)
return;
new_event.type = GDK_SETTING;
new_event.setting.window = gdk_screen_get_root_window (screen);
new_event.setting.send_event = FALSE;
new_event.setting.name = NULL;
for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++)
if (strcmp (settings_map[i].xsettings_name, name) == 0)
{
new_event.setting.name = (char *)settings_map[i].gdk_name;
break;
}
if (!new_event.setting.name)
return;
switch (action)
{
case XSETTINGS_ACTION_NEW:
new_event.setting.action = GDK_SETTING_ACTION_NEW;
break;
case XSETTINGS_ACTION_CHANGED:
new_event.setting.action = GDK_SETTING_ACTION_CHANGED;
break;
case XSETTINGS_ACTION_DELETED:
new_event.setting.action = GDK_SETTING_ACTION_DELETED;
break;
}
gdk_event_put (&new_event);
}
static gboolean
check_transform (const gchar *xsettings_name,
GType src_type,
GType dest_type)
{
if (!g_value_type_transformable (src_type, dest_type))
{
g_warning ("Cannot tranform xsetting %s of type %s to type %s\n",
xsettings_name,
g_type_name (src_type),
g_type_name (dest_type));
return FALSE;
}
else
return TRUE;
}
/**
* gdk_screen_get_setting:
* @screen: the #GdkScreen where the setting is located
* @name: the name of the setting
* @value: location to store the value of the setting
*
* Retrieves a desktop-wide setting such as double-click time
* for the #GdkScreen @screen.
*
* FIXME needs a list of valid settings here, or a link to
* more information.
*
* Returns: %TRUE if the setting existed and a value was stored
* in @value, %FALSE otherwise.
*
* Since: 2.2
**/
gboolean
gdk_screen_get_setting (GdkScreen *screen,
const gchar *name,
GValue *value)
{
const char *xsettings_name = NULL;
XSettingsResult result;
XSettingsSetting *setting;
GdkScreenX11 *screen_x11;
gboolean success = FALSE;
gint i;
GValue tmp_val = { 0, };
g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
screen_x11 = GDK_SCREEN_X11 (screen);
for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++)
if (strcmp (settings_map[i].gdk_name, name) == 0)
{
xsettings_name = settings_map[i].xsettings_name;
break;
}
if (!xsettings_name)
return FALSE;
result = xsettings_client_get_setting (screen_x11->xsettings_client,
xsettings_name, &setting);
if (result != XSETTINGS_SUCCESS)
return FALSE;
switch (setting->type)
{
case XSETTINGS_TYPE_INT:
if (check_transform (xsettings_name, G_TYPE_INT, G_VALUE_TYPE (value)))
{
g_value_init (&tmp_val, G_TYPE_INT);
g_value_set_int (&tmp_val, setting->data.v_int);
g_value_transform (&tmp_val, value);
success = TRUE;
}
break;
case XSETTINGS_TYPE_STRING:
if (check_transform (xsettings_name, G_TYPE_STRING, G_VALUE_TYPE (value)))
{
g_value_init (&tmp_val, G_TYPE_STRING);
g_value_set_string (&tmp_val, setting->data.v_string);
g_value_transform (&tmp_val, value);
success = TRUE;
}
break;
case XSETTINGS_TYPE_COLOR:
if (!check_transform (xsettings_name, GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
{
GdkColor color;
g_value_init (&tmp_val, GDK_TYPE_COLOR);
color.pixel = 0;
color.red = setting->data.v_color.red;
color.green = setting->data.v_color.green;
color.blue = setting->data.v_color.blue;
g_value_set_boxed (&tmp_val, &color);
g_value_transform (&tmp_val, value);
success = TRUE;
}
break;
}
g_value_unset (&tmp_val);
xsettings_setting_free (setting);
return success;
}
static GdkFilterReturn
gdk_xsettings_client_event_filter (GdkXEvent *xevent,
GdkEvent *event,
gpointer data)
{
GdkScreenX11 *screen = data;
if (xsettings_client_process_event (screen->xsettings_client, (XEvent *)xevent))
return GDK_FILTER_REMOVE;
else
return GDK_FILTER_CONTINUE;
}
static void
gdk_xsettings_watch_cb (Window window,
Bool is_start,
long mask,
void *cb_data)
{
GdkWindow *gdkwin;
GdkScreen *screen = cb_data;
gdkwin = gdk_window_lookup_for_display (gdk_screen_get_display (screen), window);
if (is_start)
{
if (!gdkwin)
gdkwin = gdk_window_foreign_new_for_display (gdk_screen_get_display (screen), window);
else
g_object_ref (gdkwin);
gdk_window_add_filter (gdkwin, gdk_xsettings_client_event_filter, screen);
}
else
{
g_assert (gdkwin);
gdk_window_remove_filter (gdkwin, gdk_xsettings_client_event_filter, screen);
g_object_unref (gdkwin);
}
}
Reference in New Issue View Git Blame Copy Permalink