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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright © 2011 Intel Corp.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Emmanuele Bassi <ebassi@linux.intel.com>
*/
#include "config.h"
#include "clutter-input-device-xi2.h"
#include "clutter-debug.h"
#include "clutter-device-manager-private.h"
#include "clutter-private.h"
#include "clutter-stage-private.h"
#include "clutter-backend-x11.h"
#include "clutter-stage-x11.h"
#include <X11/extensions/XInput2.h>
typedef struct _ClutterInputDeviceClass ClutterInputDeviceXI2Class;
/* a specific XI2 input device */
struct _ClutterInputDeviceXI2
{
ClutterInputDevice device;
gint device_id;
};
#define N_BUTTONS 5
#define clutter_input_device_xi2_get_type _clutter_input_device_xi2_get_type
G_DEFINE_TYPE (ClutterInputDeviceXI2,
clutter_input_device_xi2,
CLUTTER_TYPE_INPUT_DEVICE);
static void
clutter_input_device_xi2_select_stage_events (ClutterInputDevice *device,
ClutterStage *stage,
gint event_mask)
{
ClutterInputDeviceXI2 *device_xi2 = CLUTTER_INPUT_DEVICE_XI2 (device);
ClutterBackendX11 *backend_x11;
ClutterStageX11 *stage_x11;
XIEventMask xi_event_mask;
unsigned char *mask;
int len;
backend_x11 = CLUTTER_BACKEND_X11 (device->backend);
stage_x11 = CLUTTER_STAGE_X11 (_clutter_stage_get_window (stage));
len = XIMaskLen (XI_LASTEVENT);
mask = g_new0 (unsigned char, len);
if (event_mask & PointerMotionMask)
XISetMask (mask, XI_Motion);
if (event_mask & ButtonPressMask)
XISetMask (mask, XI_ButtonPress);
if (event_mask & ButtonReleaseMask)
XISetMask (mask, XI_ButtonRelease);
if (event_mask & KeyPressMask)
XISetMask (mask, XI_KeyPress);
if (event_mask & KeyReleaseMask)
XISetMask (mask, XI_KeyRelease);
if (event_mask & EnterWindowMask)
XISetMask (mask, XI_Enter);
if (event_mask & LeaveWindowMask)
XISetMask (mask, XI_Leave);
#ifdef HAVE_XINPUT_2_2
/* enable touch event support if we're running on XInput 2.2 */
if (backend_x11->xi_minor >= 2)
{
XISetMask (mask, XI_TouchBegin);
XISetMask (mask, XI_TouchUpdate);
XISetMask (mask, XI_TouchEnd);
}
#endif /* HAVE_XINPUT_2_2 */
xi_event_mask.deviceid = device_xi2->device_id;
xi_event_mask.mask = mask;
xi_event_mask.mask_len = len;
CLUTTER_NOTE (BACKEND, "Selecting device id '%d' events",
device_xi2->device_id);
XISelectEvents (backend_x11->xdpy, stage_x11->xwin, &xi_event_mask, 1);
g_free (mask);
}
static void
clutter_input_device_xi2_constructed (GObject *gobject)
{
ClutterInputDeviceXI2 *device_xi2 = CLUTTER_INPUT_DEVICE_XI2 (gobject);
g_object_get (gobject, "id", &device_xi2->device_id, NULL);
if (G_OBJECT_CLASS (clutter_input_device_xi2_parent_class)->constructed)
G_OBJECT_CLASS (clutter_input_device_xi2_parent_class)->constructed (gobject);
}
static gboolean
clutter_input_device_xi2_keycode_to_evdev (ClutterInputDevice *device,
guint hardware_keycode,
guint *evdev_keycode)
{
/* When using evdev under X11 the hardware keycodes are the evdev
keycodes plus 8. I haven't been able to find any documentation to
know what the +8 is for. FIXME: This should probably verify that
X server is using evdev. */
*evdev_keycode = hardware_keycode - 8;
return TRUE;
}
static void
clutter_input_device_xi2_class_init (ClutterInputDeviceXI2Class *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterInputDeviceClass *device_class = CLUTTER_INPUT_DEVICE_CLASS (klass);
gobject_class->constructed = clutter_input_device_xi2_constructed;
device_class->select_stage_events = clutter_input_device_xi2_select_stage_events;
device_class->keycode_to_evdev = clutter_input_device_xi2_keycode_to_evdev;
}
static void
clutter_input_device_xi2_init (ClutterInputDeviceXI2 *self)
{
}
guint
_clutter_input_device_xi2_translate_state (XIModifierState *modifiers_state,
XIButtonState *buttons_state,
XIGroupState *group_state)
{
guint retval = 0;
if (modifiers_state)
retval = (guint) modifiers_state->effective;
if (buttons_state)
{
int len, i;
len = MIN (N_BUTTONS, buttons_state->mask_len * 8);
for (i = 0; i < len; i++)
{
if (!XIMaskIsSet (buttons_state->mask, i))
continue;
switch (i)
{
case 1:
retval |= CLUTTER_BUTTON1_MASK;
break;
case 2:
retval |= CLUTTER_BUTTON2_MASK;
break;
case 3:
retval |= CLUTTER_BUTTON3_MASK;
break;
case 4:
retval |= CLUTTER_BUTTON4_MASK;
break;
case 5:
retval |= CLUTTER_BUTTON5_MASK;
break;
default:
break;
}
}
}
if (group_state)
retval |= (group_state->effective) << 13;
return retval;
}
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