mutter/clutter/x11/clutter-input-device-x11.c

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "clutter-input-device-x11.h"
#include "../clutter-debug.h"
#include "../clutter-private.h"
#ifdef HAVE_XINPUT
#include <X11/extensions/XInput.h>
#endif
typedef struct _ClutterInputDeviceClass ClutterInputDeviceX11Class;
/* a specific X11 input device */
struct _ClutterInputDeviceX11
{
ClutterInputDevice device;
#ifdef HAVE_XINPUT
XDevice *xdevice;
XEventClass xevent_list[5]; /* MAX 5 event types */
int num_events;
#endif
guint is_core : 1;
};
enum
{
PROP_0,
PROP_IS_CORE
};
G_DEFINE_TYPE (ClutterInputDeviceX11,
clutter_input_device_x11,
CLUTTER_TYPE_INPUT_DEVICE);
static void
clutter_input_device_x11_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ClutterInputDeviceX11 *self = CLUTTER_INPUT_DEVICE_X11 (gobject);
switch (prop_id)
{
case PROP_IS_CORE:
self->is_core = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
clutter_input_device_x11_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ClutterInputDeviceX11 *self = CLUTTER_INPUT_DEVICE_X11 (gobject);
switch (prop_id)
{
case PROP_IS_CORE:
g_value_set_boolean (value, self->is_core);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
clutter_input_device_x11_class_init (ClutterInputDeviceX11Class *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
gobject_class->set_property = clutter_input_device_x11_set_property;
gobject_class->get_property = clutter_input_device_x11_get_property;
pspec = g_param_spec_boolean ("is-core",
"Is Core",
"Whether the device is a core one",
FALSE,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_property (gobject_class, PROP_IS_CORE, pspec);
}
static void
clutter_input_device_x11_init (ClutterInputDeviceX11 *self)
{
self->is_core = FALSE;
}
gint
_clutter_input_device_x11_construct (ClutterInputDevice *device,
ClutterBackendX11 *backend)
{
int n_events = 0;
#ifdef HAVE_XINPUT
ClutterInputDeviceX11 *device_x11;
XDevice *x_device = NULL;
gint device_id;
int i;
device_x11 = CLUTTER_INPUT_DEVICE_X11 (device);
device_id = clutter_input_device_get_device_id (device);
clutter_x11_trap_x_errors ();
/* retrieve the X11 device */
x_device = XOpenDevice (backend->xdpy, device_id);
if (clutter_x11_untrap_x_errors () || x_device == NULL)
{
CLUTTER_NOTE (BACKEND, "Unable to open device %i", device_id);
return 0;
}
device_x11->xdevice = x_device;
CLUTTER_NOTE (BACKEND,
"Registering XINPUT device with XID: %li",
x_device->device_id);
/* We must go through all the classes supported by this device and
* register the appropriate events we want. Each class only appears
* once. We need to store the types with the stage since they are
* created dynamically by the server. They are not device specific.
*/
for (i = 0; i < x_device->num_classes; i++)
{
XInputClassInfo *xclass_info = x_device->classes + i;
int *button_press, *button_release, *motion_notify;
int *key_press, *key_release;
button_press =
&backend->event_types[CLUTTER_X11_XINPUT_BUTTON_PRESS_EVENT];
button_release =
&backend->event_types[CLUTTER_X11_XINPUT_BUTTON_RELEASE_EVENT];
motion_notify =
&backend->event_types[CLUTTER_X11_XINPUT_MOTION_NOTIFY_EVENT];
key_press =
&backend->event_types[CLUTTER_X11_XINPUT_KEY_PRESS_EVENT];
key_release =
&backend->event_types[CLUTTER_X11_XINPUT_KEY_RELEASE_EVENT];
switch (xclass_info->input_class)
{
/* event though XInput 1.x is broken for keyboard-like devices
* it might still be useful to track them down; the core keyboard
* will handle the right events anyway
*/
case KeyClass:
DeviceKeyPress (x_device,
*key_press,
device_x11->xevent_list[n_events]);
n_events++;
DeviceKeyRelease (x_device,
*key_release,
device_x11->xevent_list[n_events]);
n_events++;
break;
case ButtonClass:
DeviceButtonPress (x_device,
*button_press,
device_x11->xevent_list[n_events]);
n_events++;
DeviceButtonRelease (x_device,
*button_release,
device_x11->xevent_list[n_events]);
n_events++;
break;
case ValuatorClass:
DeviceMotionNotify (x_device,
*motion_notify,
device_x11->xevent_list[n_events]);
n_events++;
break;
}
}
device_x11->num_events = n_events;
#endif /* HAVE_XINPUT */
return n_events;
}
void
_clutter_input_device_x11_select_events (ClutterInputDevice *device,
ClutterBackendX11 *backend_x11,
Window xwin)
{
#if HAVE_XINPUT
ClutterInputDeviceX11 *device_x11;
device_x11 = CLUTTER_INPUT_DEVICE_X11 (device);
if (device_x11->xdevice == None || device_x11->num_events == 0)
return;
XSelectExtensionEvent (backend_x11->xdpy, xwin,
device_x11->xevent_list,
device_x11->num_events);
#endif /* HAVE_XINPUT */
}