gtk/gdk/gdkinputxfree.h

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1997-11-24 22:37:52 +00:00
/* 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef XINPUT_XFREE
/* forward declarations */
static gint gdk_input_xfree_set_mode (guint32 deviceid, GdkInputMode mode);
static void gdk_input_check_proximity();
static void gdk_input_xfree_configure_event (XConfigureEvent *xevent,
GdkWindow *window);
static void gdk_input_xfree_enter_event (XCrossingEvent *xevent,
GdkWindow *window);
static gint gdk_input_xfree_other_event (GdkEvent *event,
XEvent *xevent,
GdkWindow *window);
static gint gdk_input_xfree_enable_window(GdkWindow *window,
GdkDevicePrivate *gdkdev);
static gint gdk_input_xfree_disable_window(GdkWindow *window,
GdkDevicePrivate *gdkdev);
static gint gdk_input_xfree_grab_pointer (GdkWindow * window,
gint owner_events,
GdkEventMask event_mask,
GdkWindow * confine_to,
guint32 time);
static void gdk_input_xfree_ungrab_pointer (guint32 time);
void
gdk_input_init(void)
{
gdk_input_vtable.set_mode = gdk_input_xfree_set_mode;
gdk_input_vtable.set_axes = gdk_input_common_set_axes;
gdk_input_vtable.motion_events = gdk_input_common_motion_events;
gdk_input_vtable.get_pointer = gdk_input_common_get_pointer;
gdk_input_vtable.grab_pointer = gdk_input_xfree_grab_pointer;
gdk_input_vtable.ungrab_pointer = gdk_input_xfree_ungrab_pointer;
gdk_input_vtable.configure_event = gdk_input_xfree_configure_event;
gdk_input_vtable.enter_event = gdk_input_xfree_enter_event;
gdk_input_vtable.other_event = gdk_input_xfree_other_event;
gdk_input_vtable.window_none_event = NULL;
gdk_input_vtable.enable_window = gdk_input_xfree_enable_window;
gdk_input_vtable.disable_window = gdk_input_xfree_disable_window;
gdk_input_ignore_core = FALSE;
gdk_input_common_init(FALSE);
}
static gint
gdk_input_xfree_set_mode (guint32 deviceid, GdkInputMode mode)
{
GList *tmp_list;
GdkDevicePrivate *gdkdev;
GdkInputMode old_mode;
GdkInputWindow *input_window;
gdkdev = gdk_input_find_device(deviceid);
g_return_val_if_fail (gdkdev != NULL,FALSE);
old_mode = gdkdev->info.mode;
if (gdkdev->info.mode == mode)
return TRUE;
gdkdev->info.mode = mode;
if (mode == GDK_MODE_WINDOW)
{
gdkdev->info.has_cursor = FALSE;
for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
{
input_window = (GdkInputWindow *)tmp_list->data;
if (input_window->mode != GDK_EXTENSION_EVENTS_CURSOR)
gdk_input_enable_window (input_window->window, gdkdev);
else
if (old_mode != GDK_MODE_DISABLED)
gdk_input_disable_window (input_window->window, gdkdev);
}
}
else if (mode == GDK_MODE_SCREEN)
{
gdkdev->info.has_cursor = TRUE;
for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
gdk_input_enable_window (((GdkInputWindow *)tmp_list->data)->window,
gdkdev);
}
else /* mode == GDK_MODE_DISABLED */
{
for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
{
input_window = (GdkInputWindow *)tmp_list->data;
if (old_mode != GDK_MODE_WINDOW ||
input_window->mode != GDK_EXTENSION_EVENTS_CURSOR)
gdk_input_disable_window (input_window->window, gdkdev);
}
}
return TRUE;
}
static void
gdk_input_check_proximity()
{
gint new_proximity = 0;
GList *tmp_list = gdk_input_devices;
while (tmp_list && !new_proximity)
{
GdkDevicePrivate *gdkdev = (GdkDevicePrivate *)(tmp_list->data);
if (gdkdev->info.mode != GDK_MODE_DISABLED
&& gdkdev->info.deviceid != GDK_CORE_POINTER
&& gdkdev->xdevice)
{
XDeviceState *state = XQueryDeviceState(GDK_DISPLAY(),
gdkdev->xdevice);
XInputClass *xic;
int i;
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);
}
}
tmp_list = tmp_list->next;
}
gdk_input_ignore_core = new_proximity;
}
static void
gdk_input_xfree_configure_event (XConfigureEvent *xevent, GdkWindow *window)
{
GdkInputWindow *input_window;
gint root_x, root_y;
input_window = gdk_input_window_find(window);
g_return_if_fail (window != NULL);
gdk_input_get_root_relative_geometry(GDK_DISPLAY(),GDK_WINDOW_XWINDOW(window),
&root_x,
&root_y, NULL, NULL);
input_window->root_x = root_x;
input_window->root_y = root_y;
}
static void
gdk_input_xfree_enter_event (XCrossingEvent *xevent,
GdkWindow *window)
{
GdkInputWindow *input_window;
gint root_x, root_y;
input_window = gdk_input_window_find(window);
g_return_if_fail (window != NULL);
gdk_input_check_proximity();
gdk_input_get_root_relative_geometry(GDK_DISPLAY(),GDK_WINDOW_XWINDOW(window),
&root_x,
&root_y, NULL, NULL);
input_window->root_x = root_x;
input_window->root_y = root_y;
}
static gint
gdk_input_xfree_other_event (GdkEvent *event,
XEvent *xevent,
GdkWindow *window)
{
GdkInputWindow *input_window;
GdkDevicePrivate *gdkdev;
gint return_val;
input_window = gdk_input_window_find(window);
g_return_val_if_fail (window != NULL, -1);
/* 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(((XDeviceButtonEvent *)xevent)->deviceid);
if (!gdkdev) {
return -1; /* we don't handle it - not an XInput event */
}
/* FIXME: It would be nice if we could just get rid of the events
entirely, instead of having to ignore them */
if (gdkdev->info.mode == GDK_MODE_DISABLED ||
(gdkdev->info.mode == GDK_MODE_WINDOW
&& input_window->mode == GDK_EXTENSION_EVENTS_CURSOR))
return FALSE;
if (!gdk_input_ignore_core)
gdk_input_check_proximity();
return_val = gdk_input_common_other_event (event, xevent,
input_window, gdkdev);
if (return_val > 0 && event->type == GDK_PROXIMITY_OUT &&
gdk_input_ignore_core)
gdk_input_check_proximity();
/* Do a passive button grab. We have to be careful not to release
an explicit grab, if any. Doubling the grab should be harmless,
but we check anyways. */
/* FIXME, finding the proper events here is going to be SLOW - but
we might have different sets for each window/device combination */
if (return_val> 0 && !input_window->grabbed)
{
if (event->type == GDK_BUTTON_PRESS)
{
XEventClass event_classes[6];
gint num_classes;
gdk_input_common_find_events (window, gdkdev,
((GdkWindowPrivate *)window)->extension_events,
event_classes, &num_classes);
XGrabDevice( GDK_DISPLAY(), gdkdev->xdevice,
GDK_WINDOW_XWINDOW (window),
TRUE, num_classes, event_classes,
GrabModeAsync, GrabModeAsync, event->button.time);
}
else if (event->type == GDK_BUTTON_RELEASE)
XUngrabDevice( GDK_DISPLAY(), gdkdev->xdevice, event->button.time);
}
return return_val;
}
static gint
gdk_input_xfree_enable_window(GdkWindow *window, GdkDevicePrivate *gdkdev)
{
/* FIXME: watchout, gdkdev might be core pointer, never opened */
gdk_input_common_select_events (window, gdkdev);
return TRUE;
}
static gint
gdk_input_xfree_disable_window(GdkWindow *window, GdkDevicePrivate *gdkdev)
{
gdk_input_common_select_events (window, gdkdev);
return TRUE;
}
static gint
gdk_input_xfree_grab_pointer (GdkWindow * window,
gint owner_events,
GdkEventMask event_mask,
GdkWindow * confine_to,
guint32 time)
{
GdkInputWindow *input_window, *new_window;
GdkDevicePrivate *gdkdev;
GList *tmp_list;
XEventClass event_classes[6];
gint num_classes;
tmp_list = gdk_input_windows;
new_window = NULL;
while (tmp_list)
{
input_window = (GdkInputWindow *)tmp_list->data;
if (input_window->grabbed)
return AlreadyGrabbed;
if (input_window->window == window)
{
new_window = input_window;
break;
}
tmp_list = tmp_list->next;
}
g_return_if_fail (new_window == NULL);
new_window->grabbed = TRUE;
tmp_list = gdk_input_devices;
while (tmp_list)
{
gdkdev = (GdkDevicePrivate *)tmp_list->data;
if (gdkdev->info.deviceid != GDK_CORE_POINTER &&
gdkdev->xdevice && !gdkdev->button_state)
{
gdk_input_common_find_events (window, gdkdev,
((GdkWindowPrivate *)window)->extension_events,
event_classes, &num_classes);
/* FIXME: we should do something on failure */
XGrabDevice( GDK_DISPLAY(), gdkdev->xdevice,
GDK_WINDOW_XWINDOW (window),
TRUE, num_classes, event_classes,
GrabModeAsync, GrabModeAsync, time);
}
tmp_list = tmp_list->next;
}
return Success;
}
static void
gdk_input_xfree_ungrab_pointer (guint32 time)
{
GdkInputWindow *input_window;
GdkDevicePrivate *gdkdev;
GList *tmp_list;
tmp_list = gdk_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 = gdk_input_devices;
while (tmp_list)
{
gdkdev = (GdkDevicePrivate *)tmp_list->data;
if (gdkdev->info.deviceid != GDK_CORE_POINTER &&
gdkdev->xdevice && !gdkdev->button_state)
{
XUngrabDevice( gdk_display, gdkdev->xdevice, time);
}
tmp_list = tmp_list->next;
}
}
}
#endif /* XINPUT_XFREE */