/* 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.
*/
#include "config.h"
#include <string.h>
#include "gdkinputprivate.h"
#include "gdkdisplay-x11.h"
#include "gdkalias.h"
/*
* 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/.
*/
/* forward declarations */
static void gdk_input_check_proximity (GdkDisplay *display);
void
_gdk_input_init(GdkDisplay *display)
{
_gdk_init_input_core (display);
display->ignore_core_events = FALSE;
_gdk_input_common_init (display, FALSE);
}
gboolean
gdk_device_set_mode (GdkDevice *device,
GdkInputMode mode)
{
GList *tmp_list;
GdkDevicePrivate *gdkdev;
GdkInputWindow *input_window;
GdkDisplayX11 *display_impl;
if (GDK_IS_CORE (device))
return FALSE;
gdkdev = (GdkDevicePrivate *)device;
if (device->mode == mode)
return TRUE;
device->mode = mode;
if (mode == GDK_MODE_WINDOW)
device->has_cursor = FALSE;
else if (mode == GDK_MODE_SCREEN)
device->has_cursor = TRUE;
display_impl = GDK_DISPLAY_X11 (gdkdev->display);
for (tmp_list = display_impl->input_windows; tmp_list; tmp_list = tmp_list->next)
{
input_window = (GdkInputWindow *)tmp_list->data;
_gdk_input_select_events (input_window->impl_window, gdkdev);
}
return TRUE;
}
static int
ignore_errors (Display *display, XErrorEvent *event)
{
return True;
}
static void
gdk_input_check_proximity (GdkDisplay *display)
{
GdkDisplayX11 *display_impl = GDK_DISPLAY_X11 (display);
GList *tmp_list = display_impl->input_devices;
gint new_proximity = 0;
while (tmp_list && !new_proximity)
{
GdkDevicePrivate *gdkdev = (GdkDevicePrivate *)(tmp_list->data);
if (gdkdev->info.mode != GDK_MODE_DISABLED
&& !GDK_IS_CORE (gdkdev)
&& gdkdev->xdevice)
{
int (*old_handler) (Display *, XErrorEvent *);
XDeviceState *state = NULL;
XInputClass *xic;
int i;
/* From X11 doc: "XQueryDeviceState can generate a BadDevice error."
* This would occur in particular when a device is unplugged,
* which would cause the program to crash (see bug 575767).
*
* To handle this case gracefully, we simply ignore the device.
* GTK+ 3 handles this better with XInput 2's hotplugging support;
* but this is better than a crash in GTK+ 2.
*/
old_handler = XSetErrorHandler (ignore_errors);
state = XQueryDeviceState(display_impl->xdisplay, gdkdev->xdevice);
XSetErrorHandler (old_handler);
if (! state)
{
/* Broken device. It may have been disconnected.
* Ignore it.
*/
tmp_list = tmp_list->next;
continue;
}
xic = state->data;
for (i=0; i<state->num_classes; i++)
{
if (xic->class == ValuatorClass)
{
XValuatorState *xvs = (XValuatorState *)xic;
if ((xvs->mode & ProximityState) == InProximity)
{
new_proximity = TRUE;
}
break;
}
xic = (XInputClass *)((char *)xic + xic->length);
}
XFreeDeviceState (state);
}
tmp_list = tmp_list->next;
}
display->ignore_core_events = new_proximity;
}
void
_gdk_input_configure_event (XConfigureEvent *xevent,
GdkWindow *window)
{
GdkWindowObject *priv = (GdkWindowObject *)window;
GdkInputWindow *input_window;
gint root_x, root_y;
input_window = priv->input_window;
if (input_window != NULL)
{
_gdk_input_get_root_relative_geometry (window, &root_x, &root_y);
input_window->root_x = root_x;
input_window->root_y = root_y;
}
}
void
_gdk_input_crossing_event (GdkWindow *window,
gboolean enter)
{
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
GdkDisplayX11 *display_impl = GDK_DISPLAY_X11 (display);
GdkWindowObject *priv = (GdkWindowObject *)window;
GdkInputWindow *input_window;
gint root_x, root_y;
if (enter)
{
gdk_input_check_proximity(display);
input_window = priv->input_window;
if (input_window != NULL)
{
_gdk_input_get_root_relative_geometry (window, &root_x, &root_y);
input_window->root_x = root_x;
input_window->root_y = root_y;
}
}
else
display->ignore_core_events = FALSE;
}
static GdkEventType
get_input_event_type (GdkDevicePrivate *gdkdev,
XEvent *xevent,
int *core_x, int *core_y)
{
if (xevent->type == gdkdev->buttonpress_type)
{
XDeviceButtonEvent *xie = (XDeviceButtonEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_BUTTON_PRESS;
}
if (xevent->type == gdkdev->buttonrelease_type)
{
XDeviceButtonEvent *xie = (XDeviceButtonEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_BUTTON_RELEASE;
}
if (xevent->type == gdkdev->keypress_type)
{
XDeviceKeyEvent *xie = (XDeviceKeyEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_KEY_PRESS;
}
if (xevent->type == gdkdev->keyrelease_type)
{
XDeviceKeyEvent *xie = (XDeviceKeyEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_KEY_RELEASE;
}
if (xevent->type == gdkdev->motionnotify_type)
{
XDeviceMotionEvent *xie = (XDeviceMotionEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_MOTION_NOTIFY;
}
if (xevent->type == gdkdev->proximityin_type)
{
XProximityNotifyEvent *xie = (XProximityNotifyEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_PROXIMITY_IN;
}
if (xevent->type == gdkdev->proximityout_type)
{
XProximityNotifyEvent *xie = (XProximityNotifyEvent *)(xevent);
*core_x = xie->x;
*core_y = xie->y;
return GDK_PROXIMITY_OUT;
}
*core_x = 0;
*core_y = 0;
return GDK_NOTHING;
}
gboolean
_gdk_input_other_event (GdkEvent *event,
XEvent *xevent,
GdkWindow *event_window)
{
GdkWindow *window;
GdkWindowObject *priv;
GdkInputWindow *iw;
GdkDevicePrivate *gdkdev;
GdkEventType event_type;
int x, y;
GdkDisplay *display = GDK_WINDOW_DISPLAY (event_window);
GdkDisplayX11 *display_impl = GDK_DISPLAY_X11 (display);
/* This is a sort of a hack, as there isn't any XDeviceAnyEvent -
but it's potentially faster than scanning through the types of
every device. If we were deceived, then it won't match any of
the types for the device anyways */
gdkdev = _gdk_input_find_device (display,
((XDeviceButtonEvent *)xevent)->deviceid);
if (!gdkdev)
return FALSE; /* we don't handle it - not an XInput event */
event_type = get_input_event_type (gdkdev, xevent, &x, &y);
if (event_type == GDK_NOTHING)
return FALSE;
/* If we're not getting any event window its likely because we're outside the
window and there is no grab. We should still report according to the
implicit grab though. */
iw = ((GdkWindowObject *)event_window)->input_window;
if (iw->button_down_window)
window = iw->button_down_window;
else
window = _gdk_window_get_input_window_for_event (event_window,
event_type,
/* TODO: Seems wrong, but the code used to ignore button motion handling here... */
0,
x, y,
xevent->xany.serial);
priv = (GdkWindowObject *)window;
if (window == NULL)
return FALSE;
if (gdkdev->info.mode == GDK_MODE_DISABLED ||
priv->extension_events == 0 ||
!(gdkdev->info.has_cursor || (priv->extension_events & GDK_ALL_DEVICES_MASK)))
return FALSE;
if (!display->ignore_core_events && priv->extension_events != 0)
gdk_input_check_proximity (GDK_WINDOW_DISPLAY (window));
if (!_gdk_input_common_other_event (event, xevent, window, gdkdev))
return FALSE;
if (event->type == GDK_BUTTON_PRESS)
iw->button_down_window = window;
if (event->type == GDK_BUTTON_RELEASE && !gdkdev->button_count)
iw->button_down_window = NULL;
if (event->type == GDK_PROXIMITY_OUT &&
display->ignore_core_events)
gdk_input_check_proximity (GDK_WINDOW_DISPLAY (window));
return _gdk_input_common_event_selected(event, window, gdkdev);
}
gint
_gdk_input_grab_pointer (GdkWindow *window,
GdkWindow *native_window, /* This is the toplevel */
gint owner_events,
GdkEventMask event_mask,
GdkWindow * confine_to,
guint32 time)
{
GdkInputWindow *input_window;
GdkWindowObject *priv, *impl_window;
gboolean need_ungrab;
GdkDevicePrivate *gdkdev;
GList *tmp_list;
XEventClass event_classes[GDK_MAX_DEVICE_CLASSES];
gint num_classes;
gint result;
GdkDisplayX11 *display_impl = GDK_DISPLAY_X11 (GDK_WINDOW_DISPLAY (window));
tmp_list = display_impl->input_windows;
need_ungrab = FALSE;
while (tmp_list)
{
input_window = (GdkInputWindow *)tmp_list->data;
if (input_window->grabbed)
{
input_window->grabbed = FALSE;
need_ungrab = TRUE;
break;
}
tmp_list = tmp_list->next;
}
priv = (GdkWindowObject *)window;
impl_window = (GdkWindowObject *)_gdk_window_get_impl_window (window);
input_window = impl_window->input_window;
if (priv->extension_events)
{
g_assert (input_window != NULL);
input_window->grabbed = TRUE;
tmp_list = display_impl->input_devices;
while (tmp_list)
{
gdkdev = (GdkDevicePrivate *)tmp_list->data;
if (!GDK_IS_CORE (gdkdev) && gdkdev->xdevice)
{
_gdk_input_common_find_events (gdkdev, event_mask,
event_classes, &num_classes);
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_NOGRABS)
result = GrabSuccess;
else
#endif
result = XGrabDevice (display_impl->xdisplay, gdkdev->xdevice,
GDK_WINDOW_XWINDOW (native_window),
owner_events, num_classes, event_classes,
GrabModeAsync, GrabModeAsync, time);
/* FIXME: if failure occurs on something other than the first
device, things will be badly inconsistent */
if (result != Success)
return result;
}
tmp_list = tmp_list->next;
}
}
else
{
tmp_list = display_impl->input_devices;
while (tmp_list)
{
gdkdev = (GdkDevicePrivate *)tmp_list->data;
if (!GDK_IS_CORE (gdkdev) && gdkdev->xdevice &&
((gdkdev->button_count != 0) || need_ungrab))
{
XUngrabDevice (display_impl->xdisplay, gdkdev->xdevice, time);
memset (gdkdev->button_state, 0, sizeof (gdkdev->button_state));
gdkdev->button_count = 0;
}
tmp_list = tmp_list->next;
}
}
return Success;
}
void
_gdk_input_ungrab_pointer (GdkDisplay *display,
guint32 time)
{
GdkInputWindow *input_window = NULL; /* Quiet GCC */
GdkDevicePrivate *gdkdev;
GList *tmp_list;
GdkDisplayX11 *display_impl = GDK_DISPLAY_X11 (display);
tmp_list = display_impl->input_windows;
while (tmp_list)
{
input_window = (GdkInputWindow *)tmp_list->data;
if (input_window->grabbed)
break;
tmp_list = tmp_list->next;
}
if (tmp_list) /* we found a grabbed window */
{
input_window->grabbed = FALSE;
tmp_list = display_impl->input_devices;
while (tmp_list)
{
gdkdev = (GdkDevicePrivate *)tmp_list->data;
if (!GDK_IS_CORE (gdkdev) && gdkdev->xdevice)
XUngrabDevice( display_impl->xdisplay, gdkdev->xdevice, time);
tmp_list = tmp_list->next;
}
}
}
#define __GDK_INPUT_XFREE_C__
#include "gdkaliasdef.c"