gtk/gdk/x11/gdkdevice-xi2.c

622 lines
19 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* 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 <X11/extensions/XInput2.h>
#include "gdkdevice-xi2.h"
#include "gdkintl.h"
#include "gdkx.h"
struct _GdkDeviceXI2Private
{
int device_id;
};
static void gdk_device_xi2_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gdk_device_xi2_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gdk_device_xi2_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask);
static void gdk_device_xi2_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor);
static void gdk_device_xi2_warp (GdkDevice *device,
GdkScreen *screen,
gint x,
gint y);
static gboolean gdk_device_xi2_query_state (GdkDevice *device,
GdkWindow *window,
GdkWindow **root_window,
GdkWindow **child_window,
gint *root_x,
gint *root_y,
gint *win_x,
gint *win_y,
GdkModifierType *mask);
static GdkGrabStatus gdk_device_xi2_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_);
static void gdk_device_xi2_ungrab (GdkDevice *device,
guint32 time_);
static GdkWindow * gdk_device_xi2_window_at_position (GdkDevice *device,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel);
static void gdk_device_xi2_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask);
G_DEFINE_TYPE (GdkDeviceXI2, gdk_device_xi2, GDK_TYPE_DEVICE)
enum {
PROP_0,
PROP_DEVICE_ID
};
static void
gdk_device_xi2_class_init (GdkDeviceXI2Class *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
object_class->get_property = gdk_device_xi2_get_property;
object_class->set_property = gdk_device_xi2_set_property;
device_class->get_state = gdk_device_xi2_get_state;
device_class->set_window_cursor = gdk_device_xi2_set_window_cursor;
device_class->warp = gdk_device_xi2_warp;
device_class->query_state = gdk_device_xi2_query_state;
device_class->grab = gdk_device_xi2_grab;
device_class->ungrab = gdk_device_xi2_ungrab;
device_class->window_at_position = gdk_device_xi2_window_at_position;
device_class->select_window_events = gdk_device_xi2_select_window_events;
g_object_class_install_property (object_class,
PROP_DEVICE_ID,
g_param_spec_int ("device-id",
P_("Device ID"),
P_("Device identifier"),
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_type_class_add_private (object_class, sizeof (GdkDeviceXI2Private));
}
static void
gdk_device_xi2_init (GdkDeviceXI2 *device)
{
GdkDeviceXI2Private *priv;
device->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE (device,
GDK_TYPE_DEVICE_XI2,
GdkDeviceXI2Private);
}
static void
gdk_device_xi2_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkDeviceXI2Private *priv;
priv = GDK_DEVICE_XI2 (object)->priv;
switch (prop_id)
{
case PROP_DEVICE_ID:
g_value_set_int (value, priv->device_id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_device_xi2_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkDeviceXI2Private *priv;
priv = GDK_DEVICE_XI2 (object)->priv;
switch (prop_id)
{
case PROP_DEVICE_ID:
priv->device_id = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_device_xi2_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask)
{
GdkDeviceXI2Private *priv;
GdkDisplay *display;
XIDeviceInfo *info;
gint i, j, ndevices;
priv = GDK_DEVICE_XI2 (device)->priv;
display = gdk_device_get_display (device);
if (axes)
{
info = XIQueryDevice(GDK_DISPLAY_XDISPLAY (display),
priv->device_id, &ndevices);
for (i = 0, j = 0; i < info->num_classes; i++)
{
XIAnyClassInfo *class_info = info->classes[i];
GdkAxisUse use;
gdouble value;
if (class_info->type != XIValuatorClass)
continue;
value = ((XIValuatorClassInfo *) class_info)->value;
use = _gdk_device_get_axis_use (device, j);
switch (use)
{
case GDK_AXIS_X:
case GDK_AXIS_Y:
case GDK_AXIS_IGNORE:
if (device->mode == GDK_MODE_WINDOW)
_gdk_device_translate_window_coord (device, window, j, value, &axes[j]);
else
{
gint root_x, root_y;
/* FIXME: Maybe root coords chaching should happen here */
gdk_window_get_origin (window, &root_x, &root_y);
_gdk_device_translate_screen_coord (device, window,
root_x, root_y,
j, value,
&axes[j]);
}
break;
default:
_gdk_device_translate_axis (device, j, value, &axes[j]);
break;
}
j++;
}
XIFreeDeviceInfo (info);
}
if (mask)
gdk_device_xi2_query_state (device, window,
NULL, NULL,
NULL, NULL,
NULL, NULL,
mask);
}
static void
gdk_device_xi2_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor)
{
GdkDeviceXI2Private *priv;
GdkCursorPrivate *cursor_private;
priv = GDK_DEVICE_XI2 (device)->priv;
/* Non-master devices don't have a cursor */
if (gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_MASTER)
return;
if (cursor)
{
cursor_private = (GdkCursorPrivate*) cursor;
XIDefineCursor (GDK_WINDOW_XDISPLAY (window),
priv->device_id,
GDK_WINDOW_XWINDOW (window),
cursor_private->xcursor);
}
else
XIUndefineCursor (GDK_WINDOW_XDISPLAY (window),
priv->device_id,
GDK_WINDOW_XWINDOW (window));
}
static void
gdk_device_xi2_warp (GdkDevice *device,
GdkScreen *screen,
gint x,
gint y)
{
GdkDeviceXI2Private *priv;
Window dest;
priv = GDK_DEVICE_XI2 (device)->priv;
dest = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen));
XIWarpPointer (GDK_SCREEN_XDISPLAY (screen),
priv->device_id,
None, dest,
0, 0, 0, 0, x, y);
}
static gboolean
gdk_device_xi2_query_state (GdkDevice *device,
GdkWindow *window,
GdkWindow **root_window,
GdkWindow **child_window,
gint *root_x,
gint *root_y,
gint *win_x,
gint *win_y,
GdkModifierType *mask)
{
GdkDisplay *display;
GdkDeviceXI2Private *priv;
Window xroot_window, xchild_window;
gdouble xroot_x, xroot_y, xwin_x, xwin_y;
XIButtonState button_state;
XIModifierState mod_state;
XIGroupState group_state;
if (!window || GDK_WINDOW_DESTROYED (window))
return FALSE;
priv = GDK_DEVICE_XI2 (device)->priv;
display = gdk_window_get_display (window);
if (!XIQueryPointer (GDK_WINDOW_XDISPLAY (window),
priv->device_id,
GDK_WINDOW_XID (window),
&xroot_window,
&xchild_window,
&xroot_x,
&xroot_y,
&xwin_x,
&xwin_y,
&button_state,
&mod_state,
&group_state))
{
return FALSE;
}
if (root_window)
*root_window = gdk_window_lookup_for_display (display, xroot_window);
if (child_window)
*child_window = gdk_window_lookup_for_display (display, xchild_window);
if (root_x)
*root_x = (gint) xroot_x;
if (root_y)
*root_y = (gint) xroot_y;
if (win_x)
*win_x = (gint) xwin_x;
if (win_y)
*win_y = (gint) xwin_y;
if (mask)
*mask = gdk_device_xi2_translate_state (&mod_state, &button_state);
return TRUE;
}
static GdkGrabStatus
gdk_device_xi2_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_)
{
GdkDeviceXI2Private *priv;
GdkDisplay *display;
XIEventMask mask;
Window xwindow;
Cursor xcursor;
int status;
priv = GDK_DEVICE_XI2 (device)->priv;
display = gdk_device_get_display (device);
/* FIXME: confine_to is actually unused */
xwindow = GDK_WINDOW_XID (window);
if (!cursor)
xcursor = None;
else
{
_gdk_x11_cursor_update_theme (cursor);
xcursor = ((GdkCursorPrivate *) cursor)->xcursor;
}
mask.deviceid = priv->device_id;
mask.mask = gdk_device_xi2_translate_event_mask (event_mask, &mask.mask_len);
status = XIGrabDevice (GDK_DISPLAY_XDISPLAY (display),
priv->device_id,
xwindow,
time_,
xcursor,
GrabModeAsync, GrabModeAsync,
owner_events,
&mask);
g_free (mask.mask);
return _gdk_x11_convert_grab_status (status);
}
static void
gdk_device_xi2_ungrab (GdkDevice *device,
guint32 time_)
{
GdkDeviceXI2Private *priv;
GdkDisplay *display;
priv = GDK_DEVICE_XI2 (device)->priv;
display = gdk_device_get_display (device);
XIUngrabDevice (GDK_DISPLAY_XDISPLAY (display),
priv->device_id,
time_);
}
static GdkWindow *
gdk_device_xi2_window_at_position (GdkDevice *device,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel)
{
GdkDeviceXI2Private *priv;
GdkDisplay *display;
GdkScreen *screen;
Display *xdisplay;
GdkWindow *window;
Window xwindow, root, child, last = None;
gdouble xroot_x, xroot_y, xwin_x, xwin_y;
XIButtonState button_state;
XIModifierState mod_state;
XIGroupState group_state;
priv = GDK_DEVICE_XI2 (device)->priv;
display = gdk_device_get_display (device);
screen = gdk_display_get_default_screen (display);
/* This function really only works if the mouse pointer is held still
* during its operation. If it moves from one leaf window to another
* than we'll end up with inaccurate values for win_x, win_y
* and the result.
*/
gdk_x11_display_grab (display);
xdisplay = GDK_SCREEN_XDISPLAY (screen);
xwindow = GDK_SCREEN_XROOTWIN (screen);
XIQueryPointer (xdisplay,
priv->device_id,
xwindow,
&root, &child,
&xroot_x, &xroot_y,
&xwin_x, &xwin_y,
&button_state,
&mod_state,
&group_state);
if (root == xwindow)
xwindow = child;
else
xwindow = root;
while (xwindow)
{
last = xwindow;
XIQueryPointer (xdisplay,
priv->device_id,
xwindow,
&root, &xwindow,
&xroot_x, &xroot_y,
&xwin_x, &xwin_y,
&button_state,
&mod_state,
&group_state);
if (get_toplevel && last != root &&
(window = gdk_window_lookup_for_display (display, last)) != NULL &&
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
{
xwindow = last;
break;
}
}
gdk_x11_display_ungrab (display);
window = gdk_window_lookup_for_display (display, last);
if (win_x)
*win_x = (window) ? (gint) xwin_x : -1;
if (win_y)
*win_y = (window) ? (gint) xwin_y : -1;
if (mask)
*mask = gdk_device_xi2_translate_state (&mod_state, &button_state);
return window;
}
static void
gdk_device_xi2_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask)
{
GdkDeviceXI2Private *priv;
XIEventMask evmask;
priv = GDK_DEVICE_XI2 (device)->priv;
evmask.deviceid = priv->device_id;
evmask.mask = gdk_device_xi2_translate_event_mask (event_mask, &evmask.mask_len);
XISelectEvents (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XWINDOW (window),
&evmask, 1);
g_free (evmask.mask);
}
guchar *
gdk_device_xi2_translate_event_mask (GdkEventMask event_mask,
int *len)
{
guchar *mask;
*len = XIMaskLen (XI_LASTEVENT);
mask = g_new0 (guchar, *len);
if (event_mask & GDK_POINTER_MOTION_MASK ||
event_mask & GDK_POINTER_MOTION_HINT_MASK)
XISetMask (mask, XI_Motion);
if (event_mask & GDK_BUTTON_MOTION_MASK ||
event_mask & GDK_BUTTON1_MOTION_MASK ||
event_mask & GDK_BUTTON2_MOTION_MASK ||
event_mask & GDK_BUTTON3_MOTION_MASK)
{
XISetMask (mask, XI_ButtonPress);
XISetMask (mask, XI_ButtonRelease);
XISetMask (mask, XI_Motion);
}
if (event_mask & GDK_SCROLL_MASK)
{
XISetMask (mask, XI_ButtonPress);
XISetMask (mask, XI_ButtonRelease);
}
if (event_mask & GDK_BUTTON_PRESS_MASK)
XISetMask (mask, XI_ButtonPress);
if (event_mask & GDK_BUTTON_RELEASE_MASK)
XISetMask (mask, XI_ButtonRelease);
if (event_mask & GDK_KEY_PRESS_MASK)
XISetMask (mask, XI_KeyPress);
if (event_mask & GDK_KEY_RELEASE_MASK)
XISetMask (mask, XI_KeyRelease);
if (event_mask & GDK_ENTER_NOTIFY_MASK)
XISetMask (mask, XI_Enter);
if (event_mask & GDK_LEAVE_NOTIFY_MASK)
XISetMask (mask, XI_Leave);
if (event_mask & GDK_FOCUS_CHANGE_MASK)
{
XISetMask (mask, XI_FocusIn);
XISetMask (mask, XI_FocusOut);
}
return mask;
}
guint
gdk_device_xi2_translate_state (XIModifierState *mods_state,
XIButtonState *buttons_state)
{
guint state = 0;
if (mods_state)
state = (guint) mods_state->effective;
if (buttons_state)
{
gint len, i;
/* We're only interested in the first 5 buttons */
len = MIN (5, buttons_state->mask_len * 8);
for (i = 0; i < len; i++)
{
if (!XIMaskIsSet (buttons_state->mask, i))
continue;
switch (i)
{
case 1:
state |= GDK_BUTTON1_MASK;
break;
case 2:
state |= GDK_BUTTON2_MASK;
break;
case 3:
state |= GDK_BUTTON3_MASK;
break;
case 4:
state |= GDK_BUTTON4_MASK;
break;
case 5:
state |= GDK_BUTTON5_MASK;
break;
default:
break;
}
}
}
return state;
}