gtk2/gdk/gdkdisplay.c
Alexander Larsson e24c9e291d Switch motion hint emulation to be serial based.
For backends not supporting serials, just have
_gdk_windowing_window_get_next_serial return zero.
2009-04-02 10:15:26 +02:00

1095 lines
31 KiB
C

/* GDK - The GIMP Drawing Kit
* gdkdisplay.c
*
* Copyright 2001 Sun Microsystems Inc.
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <math.h>
#include <glib.h>
#include "gdk.h" /* gdk_event_send_client_message() */
#include "gdkdisplay.h"
#include "gdkwindowimpl.h"
#include "gdkinternals.h"
#include "gdkmarshalers.h"
#include "gdkscreen.h"
#include "gdkalias.h"
enum {
CLOSED,
LAST_SIGNAL
};
static void gdk_display_dispose (GObject *object);
static void gdk_display_finalize (GObject *object);
static void singlehead_get_pointer (GdkDisplay *display,
GdkScreen **screen,
gint *x,
gint *y,
GdkModifierType *mask);
static GdkWindow* singlehead_window_get_pointer (GdkDisplay *display,
GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask);
static GdkWindow* singlehead_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y);
static GdkWindow* singlehead_default_window_get_pointer (GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask);
static GdkWindow* singlehead_default_window_at_pointer (GdkScreen *screen,
gint *win_x,
gint *win_y);
static GdkWindow *gdk_window_real_window_get_pointer (GdkDisplay *display,
GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask);
static GdkWindow *gdk_display_real_get_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y);
static guint signals[LAST_SIGNAL] = { 0 };
static char *gdk_sm_client_id;
static const GdkDisplayPointerHooks default_pointer_hooks = {
_gdk_windowing_get_pointer,
gdk_window_real_window_get_pointer,
gdk_display_real_get_window_at_pointer
};
static const GdkDisplayPointerHooks singlehead_pointer_hooks = {
singlehead_get_pointer,
singlehead_window_get_pointer,
singlehead_window_at_pointer
};
static const GdkPointerHooks singlehead_default_pointer_hooks = {
singlehead_default_window_get_pointer,
singlehead_default_window_at_pointer
};
static const GdkPointerHooks *singlehead_current_pointer_hooks = &singlehead_default_pointer_hooks;
G_DEFINE_TYPE (GdkDisplay, gdk_display, G_TYPE_OBJECT)
static void
gdk_display_class_init (GdkDisplayClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = gdk_display_finalize;
object_class->dispose = gdk_display_dispose;
/**
* GdkDisplay::closed:
* @display: the object on which the signal is emitted
* @is_error: %TRUE if the display was closed due to an error
*
* The ::closed signal is emitted when the connection to the windowing
* system for @display is closed.
*
* Since: 2.2
*/
signals[CLOSED] =
g_signal_new (g_intern_static_string ("closed"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdkDisplayClass, closed),
NULL, NULL,
gdk_marshal_VOID__BOOLEAN,
G_TYPE_NONE,
1,
G_TYPE_BOOLEAN);
}
static void
gdk_display_init (GdkDisplay *display)
{
_gdk_displays = g_slist_prepend (_gdk_displays, display);
display->button_click_time[0] = display->button_click_time[1] = 0;
display->button_window[0] = display->button_window[1] = NULL;
display->button_number[0] = display->button_number[1] = -1;
display->button_x[0] = display->button_x[1] = 0;
display->button_y[0] = display->button_y[1] = 0;
display->double_click_time = 250;
display->double_click_distance = 5;
display->pointer_hooks = &default_pointer_hooks;
}
static void
gdk_display_dispose (GObject *object)
{
GdkDisplay *display = GDK_DISPLAY_OBJECT (object);
g_list_foreach (display->queued_events, (GFunc)gdk_event_free, NULL);
g_list_free (display->queued_events);
display->queued_events = NULL;
display->queued_tail = NULL;
_gdk_displays = g_slist_remove (_gdk_displays, object);
if (gdk_display_get_default() == display)
{
if (_gdk_displays)
gdk_display_manager_set_default_display (gdk_display_manager_get(),
_gdk_displays->data);
else
gdk_display_manager_set_default_display (gdk_display_manager_get(),
NULL);
}
G_OBJECT_CLASS (gdk_display_parent_class)->dispose (object);
}
static void
gdk_display_finalize (GObject *object)
{
G_OBJECT_CLASS (gdk_display_parent_class)->finalize (object);
}
/**
* gdk_display_close:
* @display: a #GdkDisplay
*
* Closes the connection to the windowing system for the given display,
* and cleans up associated resources.
*
* Since: 2.2
*/
void
gdk_display_close (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
if (!display->closed)
{
display->closed = TRUE;
g_signal_emit (display, signals[CLOSED], 0, FALSE);
g_object_run_dispose (G_OBJECT (display));
g_object_unref (display);
}
}
/**
* gdk_display_get_event:
* @display: a #GdkDisplay
*
* Gets the next #GdkEvent to be processed for @display, fetching events from the
* windowing system if necessary.
*
* Return value: the next #GdkEvent to be processed, or %NULL if no events
* are pending. The returned #GdkEvent should be freed with gdk_event_free().
*
* Since: 2.2
**/
GdkEvent*
gdk_display_get_event (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
_gdk_events_queue (display);
return _gdk_event_unqueue (display);
}
/**
* gdk_display_peek_event:
* @display: a #GdkDisplay
*
* Gets a copy of the first #GdkEvent in the @display's event queue, without
* removing the event from the queue. (Note that this function will
* not get more events from the windowing system. It only checks the events
* that have already been moved to the GDK event queue.)
*
* Return value: a copy of the first #GdkEvent on the event queue, or %NULL
* if no events are in the queue. The returned #GdkEvent should be freed with
* gdk_event_free().
*
* Since: 2.2
**/
GdkEvent*
gdk_display_peek_event (GdkDisplay *display)
{
GList *tmp_list;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
tmp_list = _gdk_event_queue_find_first (display);
if (tmp_list)
return gdk_event_copy (tmp_list->data);
else
return NULL;
}
/**
* gdk_display_put_event:
* @display: a #GdkDisplay
* @event: a #GdkEvent.
*
* Appends a copy of the given event onto the front of the event
* queue for @display.
*
* Since: 2.2
**/
void
gdk_display_put_event (GdkDisplay *display,
const GdkEvent *event)
{
g_return_if_fail (GDK_IS_DISPLAY (display));
g_return_if_fail (event != NULL);
_gdk_event_queue_append (display, gdk_event_copy (event));
/* If the main loop is blocking in a different thread, wake it up */
g_main_context_wakeup (NULL);
}
/**
* gdk_pointer_ungrab:
* @time_: a timestamp from a #GdkEvent, or %GDK_CURRENT_TIME if no
* timestamp is available.
*
* Ungrabs the pointer on the default display, if it is grabbed by this
* application.
**/
void
gdk_pointer_ungrab (guint32 time)
{
gdk_display_pointer_ungrab (gdk_display_get_default (), time);
}
/**
* gdk_pointer_is_grabbed:
*
* Returns %TRUE if the pointer on the default display is currently
* grabbed by this application.
*
* Note that this does not take the inmplicit pointer grab on button
* presses into account.
* Return value: %TRUE if the pointer is currently grabbed by this application.*
**/
gboolean
gdk_pointer_is_grabbed (void)
{
return gdk_display_pointer_is_grabbed (gdk_display_get_default ());
}
/**
* gdk_keyboard_ungrab:
* @time_: a timestamp from a #GdkEvent, or %GDK_CURRENT_TIME if no
* timestamp is available.
*
* Ungrabs the keyboard on the default display, if it is grabbed by this
* application.
**/
void
gdk_keyboard_ungrab (guint32 time)
{
gdk_display_keyboard_ungrab (gdk_display_get_default (), time);
}
/**
* gdk_beep:
*
* Emits a short beep on the default display.
**/
void
gdk_beep (void)
{
gdk_display_beep (gdk_display_get_default ());
}
/**
* gdk_event_send_client_message:
* @event: the #GdkEvent to send, which should be a #GdkEventClient.
* @winid: the window to send the X ClientMessage event to.
*
* Sends an X ClientMessage event to a given window (which must be
* on the default #GdkDisplay.)
* This could be used for communicating between different applications,
* though the amount of data is limited to 20 bytes.
*
* Return value: non-zero on success.
**/
gboolean
gdk_event_send_client_message (GdkEvent *event,
GdkNativeWindow winid)
{
g_return_val_if_fail (event != NULL, FALSE);
return gdk_event_send_client_message_for_display (gdk_display_get_default (),
event, winid);
}
/**
* gdk_event_send_clientmessage_toall:
* @event: the #GdkEvent to send, which should be a #GdkEventClient.
*
* Sends an X ClientMessage event to all toplevel windows on the default
* #GdkScreen.
*
* 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.
**/
void
gdk_event_send_clientmessage_toall (GdkEvent *event)
{
g_return_if_fail (event != NULL);
gdk_screen_broadcast_client_message (gdk_screen_get_default (), event);
}
/**
* gdk_device_get_core_pointer:
*
* Returns the core pointer device for the default display.
*
* Return value: the core pointer device; this is owned by the
* display and should not be freed.
**/
GdkDevice *
gdk_device_get_core_pointer (void)
{
return gdk_display_get_core_pointer (gdk_display_get_default ());
}
/**
* gdk_display_get_core_pointer:
* @display: a #GdkDisplay
*
* Returns the core pointer device for the given display
*
* Return value: the core pointer device; this is owned by the
* display and should not be freed.
*
* Since: 2.2
**/
GdkDevice *
gdk_display_get_core_pointer (GdkDisplay *display)
{
return display->core_pointer;
}
/**
* gdk_set_sm_client_id:
* @sm_client_id: the client id assigned by the session manager when the
* connection was opened, or %NULL to remove the property.
*
* Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
* the window manager can save the application's state using the X11R6 ICCCM
* session management protocol.
*
* See the X Session Management Library documentation for more information on
* session management and the Inter-Client Communication Conventions Manual
* (ICCCM) for information on the <literal>WM_CLIENT_LEADER</literal> property.
* (Both documents are part of the X Window System distribution.)
**/
void
gdk_set_sm_client_id (const gchar* sm_client_id)
{
GSList *displays, *tmp_list;
g_free (gdk_sm_client_id);
gdk_sm_client_id = g_strdup (sm_client_id);
displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
for (tmp_list = displays; tmp_list; tmp_list = tmp_list->next)
_gdk_windowing_display_set_sm_client_id (tmp_list->data, sm_client_id);
g_slist_free (displays);
}
/**
* _gdk_get_sm_client_id:
*
* Gets the client ID set with gdk_set_sm_client_id(), if any.
*
* Return value: Session ID, or %NULL if gdk_set_sm_client_id()
* has never been called.
**/
const char *
_gdk_get_sm_client_id (void)
{
return gdk_sm_client_id;
}
void
_gdk_display_enable_motion_hints (GdkDisplay *display)
{
gulong next_serial;
if (display->pointer_info.motion_hint_serial != 0)
{
next_serial = _gdk_windowing_window_get_next_serial (display);
if (next_serial < display->pointer_info.motion_hint_serial)
display->pointer_info.motion_hint_serial = next_serial;
}
}
/**
* gdk_display_get_pointer:
* @display: a #GdkDisplay
* @screen: location to store the screen that the
* cursor is on, or %NULL.
* @x: location to store root window X coordinate of pointer, or %NULL.
* @y: location to store root window Y coordinate of pointer, or %NULL.
* @mask: location to store current modifier mask, or %NULL
*
* Gets the current location of the pointer and the current modifier
* mask for a given display.
*
* Since: 2.2
**/
void
gdk_display_get_pointer (GdkDisplay *display,
GdkScreen **screen,
gint *x,
gint *y,
GdkModifierType *mask)
{
GdkScreen *tmp_screen;
gint tmp_x, tmp_y;
GdkModifierType tmp_mask;
g_return_if_fail (GDK_IS_DISPLAY (display));
display->pointer_hooks->get_pointer (display, &tmp_screen, &tmp_x, &tmp_y, &tmp_mask);
if (screen)
*screen = tmp_screen;
if (x)
*x = tmp_x;
if (y)
*y = tmp_y;
if (mask)
*mask = tmp_mask;
}
static GdkWindow *
gdk_display_real_get_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y)
{
GdkWindow *window;
gint x, y;
window = _gdk_windowing_window_at_pointer (display, &x, &y, NULL);
/* This might need corrections, as the native window returned
may contain client side children */
if (window)
{
double xx, yy;
window = _gdk_window_find_descendant_at (window,
x, y,
&xx, &yy);
x = floor (xx + 0.5);
y = floor (yy + 0.5);
}
*win_x = x;
*win_y = y;
return window;
}
static GdkWindow *
gdk_window_real_window_get_pointer (GdkDisplay *display,
GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask)
{
GdkWindowObject *private;
GdkWindow *pointer_window;
gint tmpx, tmpy;
GdkModifierType tmp_mask;
private = (GdkWindowObject *) window;
pointer_window = _gdk_windowing_window_get_pointer (display,
window,
&tmpx, &tmpy,
mask);
/* We got the coords on the impl, conver to the window */
tmpx -= private->abs_x;
tmpy -= private->abs_y;
if (x)
*x = tmpx;
if (y)
*y = tmpy;
/* We need to recalculate the true child window with the pointer in it
due to possible client side child windows */
if (pointer_window != NULL)
{
/* First get the pointer coords relative to pointer_window */
_gdk_windowing_window_get_pointer (display,
pointer_window,
&tmpx, &tmpy,
&tmp_mask);
/* Then convert that to a client side window */
pointer_window = _gdk_window_find_descendant_at (pointer_window,
tmpx, tmpy,
NULL, NULL);
}
return pointer_window;
}
/**
* gdk_display_get_window_at_pointer:
* @display: a #GdkDisplay
* @win_x: return location for x coordinate of the pointer location relative
* to the window origin, or %NULL
* @win_y: return location for y coordinate of the pointer location relative
& to the window origin, or %NULL
*
* Obtains the window underneath the mouse pointer, returning the location
* of the pointer in that window in @win_x, @win_y for @screen. Returns %NULL
* if the window under the mouse pointer is not known to GDK (for example,
* belongs to another application).
*
* Returns: the window under the mouse pointer, or %NULL
*
* Since: 2.2
**/
GdkWindow *
gdk_display_get_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y)
{
gint tmp_x, tmp_y;
GdkWindow *window;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
window = display->pointer_hooks->window_at_pointer (display, &tmp_x, &tmp_y);
if (win_x)
*win_x = tmp_x;
if (win_y)
*win_y = tmp_y;
return window;
}
/**
* gdk_display_set_pointer_hooks:
* @display: a #GdkDisplay
* @new_hooks: a table of pointers to functions for getting
* quantities related to the current pointer position,
* or %NULL to restore the default table.
*
* This function allows for hooking into the operation
* of getting the current location of the pointer on a particular
* display. This is only useful for such low-level tools as an
* event recorder. Applications should never have any
* reason to use this facility.
*
* Return value: the previous pointer hook table
*
* Since: 2.2
**/
GdkDisplayPointerHooks *
gdk_display_set_pointer_hooks (GdkDisplay *display,
const GdkDisplayPointerHooks *new_hooks)
{
const GdkDisplayPointerHooks *result;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
result = display->pointer_hooks;
if (new_hooks)
display->pointer_hooks = new_hooks;
else
display->pointer_hooks = &default_pointer_hooks;
return (GdkDisplayPointerHooks *)result;
}
static void
singlehead_get_pointer (GdkDisplay *display,
GdkScreen **screen,
gint *x,
gint *y,
GdkModifierType *mask)
{
GdkScreen *default_screen = gdk_display_get_default_screen (display);
GdkWindow *root_window = gdk_screen_get_root_window (default_screen);
*screen = default_screen;
singlehead_current_pointer_hooks->get_pointer (root_window, x, y, mask);
}
static GdkWindow*
singlehead_window_get_pointer (GdkDisplay *display,
GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask)
{
return singlehead_current_pointer_hooks->get_pointer (window, x, y, mask);
}
static GdkWindow*
singlehead_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y)
{
GdkScreen *default_screen = gdk_display_get_default_screen (display);
return singlehead_current_pointer_hooks->window_at_pointer (default_screen,
win_x, win_y);
}
static GdkWindow*
singlehead_default_window_get_pointer (GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask)
{
return gdk_window_real_window_get_pointer (gdk_drawable_get_display (window),
window, x, y, mask);
}
static GdkWindow*
singlehead_default_window_at_pointer (GdkScreen *screen,
gint *win_x,
gint *win_y)
{
return gdk_display_real_get_window_at_pointer (gdk_screen_get_display (screen),
win_x, win_y);
}
/**
* gdk_set_pointer_hooks:
* @new_hooks: a table of pointers to functions for getting
* quantities related to the current pointer position,
* or %NULL to restore the default table.
*
* This function allows for hooking into the operation
* of getting the current location of the pointer. This
* is only useful for such low-level tools as an
* event recorder. Applications should never have any
* reason to use this facility.
*
* This function is not multihead safe. For multihead operation,
* see gdk_display_set_pointer_hooks().
*
* Return value: the previous pointer hook table
**/
GdkPointerHooks *
gdk_set_pointer_hooks (const GdkPointerHooks *new_hooks)
{
const GdkPointerHooks *result = singlehead_current_pointer_hooks;
if (new_hooks)
singlehead_current_pointer_hooks = new_hooks;
else
singlehead_current_pointer_hooks = &singlehead_default_pointer_hooks;
gdk_display_set_pointer_hooks (gdk_display_get_default (),
&singlehead_pointer_hooks);
return (GdkPointerHooks *)result;
}
static void
generate_grab_broken_event (GdkWindow *window,
gboolean keyboard,
gboolean implicit,
GdkWindow *grab_window)
{
g_return_if_fail (window != NULL);
if (!GDK_WINDOW_DESTROYED (window))
{
GdkEvent event;
event.type = GDK_GRAB_BROKEN;
event.grab_broken.window = window;
event.grab_broken.send_event = 0;
event.grab_broken.keyboard = keyboard;
event.grab_broken.implicit = implicit;
event.grab_broken.grab_window = grab_window;
gdk_event_put (&event);
}
}
void
_gdk_display_set_has_pointer_grab (GdkDisplay *display,
GdkWindow *window,
GdkWindow *native_window,
gboolean owner_events,
GdkEventMask event_mask,
unsigned long serial,
guint32 time,
gboolean implicit)
{
GdkWindow *src_toplevel, *dest_toplevel, *src_window;
if (display->pointer_grab.window != NULL &&
display->pointer_grab.window != window)
{
generate_grab_broken_event (GDK_WINDOW (display->pointer_grab.window),
FALSE, display->pointer_grab.implicit,
window);
}
/* We need to generate crossing events for the grab.
* However, there are never any crossing events for implicit grabs
* TODO: ... Actually, this could happen if the pointer window doesn't have button mask so a parent gets the event...
*/
if (!implicit)
{
int x, y;
GdkModifierType state;
/* We send GRAB crossing events from the window under the pointer to the
grab window. Except if there is an old grab then we start from that */
if (display->pointer_grab.window)
src_window = display->pointer_grab.window;
else
src_window = display->pointer_info.window_under_pointer;
/* Unset any current grab to make sure we send the events */
display->pointer_grab.window = NULL;
if (src_window != window)
{
/* _gdk_syntesize_crossing_events only works inside one toplevel, split into two calls if needed */
if (src_window)
src_toplevel = gdk_window_get_toplevel (src_window);
else
src_toplevel = NULL;
dest_toplevel = gdk_window_get_toplevel (window);
if (src_toplevel == NULL ||
src_toplevel == dest_toplevel)
{
_gdk_windowing_window_get_pointer (display,
dest_toplevel,
&x, &y, &state);
_gdk_syntesize_crossing_events (display,
src_window,
window,
GDK_CROSSING_GRAB,
x, y, state,
time,
NULL);
}
else
{
_gdk_windowing_window_get_pointer (display,
src_toplevel,
&x, &y, &state);
_gdk_syntesize_crossing_events (display,
src_window,
NULL,
GDK_CROSSING_GRAB,
x, y, state,
time,
NULL);
_gdk_windowing_window_get_pointer (display,
dest_toplevel,
&x, &y, &state);
_gdk_syntesize_crossing_events (display,
NULL,
window,
GDK_CROSSING_GRAB,
x, y, state,
time,
NULL);
}
}
/* !owner_event Grabbing a window that we're not inside, current status is
now NULL (i.e. outside grabbed window) */
if (!owner_events && display->pointer_info.window_under_pointer != window)
_gdk_display_set_window_under_pointer (display, NULL);
}
display->pointer_grab.window = window;
display->pointer_grab.native_window = native_window;
display->pointer_grab.serial = serial;
display->pointer_grab.owner_events = owner_events;
display->pointer_grab.event_mask = event_mask;
display->pointer_grab.time = time;
display->pointer_grab.implicit = implicit;
display->pointer_grab.converted_implicit = FALSE;
}
void
_gdk_display_unset_has_pointer_grab (GdkDisplay *display,
gboolean implicit,
gboolean do_grab_one_pointer_release_event,
guint32 time)
{
GdkWindow *pointer_window, *src_toplevel, *dest_toplevel;
GdkWindow *old_grab_window;
GdkWindow *old_native_grab_window;
int x, y;
GdkModifierType state;
GdkWindowObject *w;
old_grab_window = display->pointer_grab.window;
old_native_grab_window = display->pointer_grab.native_window;
if (old_grab_window == NULL)
return; /* This happens in the gdk_window_hide case */
if (do_grab_one_pointer_release_event)
display->pointer_grab.grab_one_pointer_release_event = display->pointer_grab.window;
/* Set first so crossing events get sent */
display->pointer_grab.window = NULL;
pointer_window = _gdk_windowing_window_at_pointer (display, &x, &y, &state);
if (pointer_window != NULL &&
(GDK_WINDOW_TYPE (pointer_window) == GDK_WINDOW_ROOT ||
GDK_WINDOW_TYPE (pointer_window) == GDK_WINDOW_FOREIGN))
pointer_window = NULL;
/* We force checked what window we're in, so we need to
* update the toplevel_under_pointer info, as that won't get told of
* this change.
*/
if (display->pointer_info.toplevel_under_pointer)
g_object_unref (display->pointer_info.toplevel_under_pointer);
display->pointer_info.toplevel_under_pointer = NULL;
if (pointer_window)
{
/* Convert to toplevel */
w = (GdkWindowObject *)pointer_window;
while (w->parent->window_type != GDK_WINDOW_ROOT)
{
x += w->x;
y += w->y;
w = w->parent;
}
/* w is now toplevel and x,y in toplevel coords */
display->pointer_info.toplevel_under_pointer = g_object_ref (w);
/* Find child window */
pointer_window =
_gdk_window_find_descendant_at ((GdkWindow *)w,
x, y,
NULL, NULL);
}
if (pointer_window == NULL)
{
_gdk_syntesize_crossing_events (display,
old_grab_window,
NULL,
GDK_CROSSING_UNGRAB,
x, y, state,
time,
NULL);
}
else
{
if (pointer_window != old_grab_window)
{
/* _gdk_syntesize_crossing_events only works inside one toplevel, split into two calls if needed */
src_toplevel = gdk_window_get_toplevel (old_grab_window);
dest_toplevel = gdk_window_get_toplevel (pointer_window);
if (src_toplevel == dest_toplevel)
{
_gdk_syntesize_crossing_events (display,
display->pointer_info.window_under_pointer,
pointer_window,
GDK_CROSSING_UNGRAB,
x, y, state,
time,
NULL);
}
else
{
/* TODO: We're reporting the wrong coords here. They are in pointer_window toplevel coords */
_gdk_syntesize_crossing_events (display,
display->pointer_info.window_under_pointer,
NULL,
GDK_CROSSING_UNGRAB,
x, y, state,
time,
NULL);
_gdk_syntesize_crossing_events (display,
NULL,
pointer_window,
GDK_CROSSING_UNGRAB,
x, y, state,
time,
NULL);
}
}
}
/* We're now ungrabbed, update the window_under_pointer */
_gdk_display_set_window_under_pointer (display, pointer_window);
if (implicit)
generate_grab_broken_event (old_grab_window,
FALSE, implicit,
NULL);
}
void
_gdk_display_set_has_keyboard_grab (GdkDisplay *display,
GdkWindow *window,
GdkWindow *native_window,
gboolean owner_events,
unsigned long serial,
guint32 time)
{
if (display->keyboard_grab.window != NULL &&
display->keyboard_grab.window != window)
generate_grab_broken_event (display->keyboard_grab.window,
TRUE, FALSE, window);
display->keyboard_grab.window = window;
display->keyboard_grab.native_window = native_window;
display->keyboard_grab.owner_events = owner_events;
display->keyboard_grab.serial = serial;
display->keyboard_grab.time = time;
}
void
_gdk_display_unset_has_keyboard_grab (GdkDisplay *display,
gboolean implicit)
{
if (implicit)
generate_grab_broken_event (display->keyboard_grab.window,
TRUE, FALSE, NULL);
display->keyboard_grab.window = NULL;
}
/**
* gdk_keyboard_grab_info_libgtk_only:
* @display: the display for which to get the grab information
* @grab_window: location to store current grab window
* @owner_events: location to store boolean indicating whether
* the @owner_events flag to gdk_keyboard_grab() was %TRUE.
*
* Determines information about the current keyboard grab.
* This is not public API and must not be used by applications.
*
* Return value: %TRUE if this application currently has the
* keyboard grabbed.
**/
gboolean
gdk_keyboard_grab_info_libgtk_only (GdkDisplay *display,
GdkWindow **grab_window,
gboolean *owner_events)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
if (display->keyboard_grab.window)
{
if (grab_window)
*grab_window = display->keyboard_grab.window;
if (owner_events)
*owner_events = display->keyboard_grab.owner_events;
return TRUE;
}
else
return FALSE;
}
/**
* gdk_pointer_grab_info_libgtk_only:
* @display: the #GdkDisplay for which to get the grab information
* @grab_window: location to store current grab window
* @owner_events: location to store boolean indicating whether
* the @owner_events flag to gdk_pointer_grab() was %TRUE.
*
* Determines information about the current pointer grab.
* This is not public API and must not be used by applications.
*
* Return value: %TRUE if this application currently has the
* pointer grabbed.
**/
gboolean
gdk_pointer_grab_info_libgtk_only (GdkDisplay *display,
GdkWindow **grab_window,
gboolean *owner_events)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
if (display->pointer_grab.window)
{
if (grab_window)
*grab_window = (GdkWindow *)display->pointer_grab.window;
if (owner_events)
*owner_events = display->pointer_grab.owner_events;
return TRUE;
}
else
return FALSE;
}
/**
* gdk_display_pointer_is_grabbed:
* @display: a #GdkDisplay
*
* Test if the pointer is grabbed.
*
* Returns: %TRUE if an active X pointer grab is in effect
*
* Since: 2.2
*/
gboolean
gdk_display_pointer_is_grabbed (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
return (display->pointer_grab.window != NULL &&
!display->pointer_grab.implicit);
}
#define __GDK_DISPLAY_C__
#include "gdkaliasdef.c"