mirror of
https://github.com/brl/mutter.git
synced 2024-12-12 14:20:17 +00:00
b398292089
The DeviceManager class should be abstract in Clutter, and implemented by each backend, as different backends will have different ways to detect, initialize and list devices; the X11 backend alone has *two* ways of dealing with devices. This commit makes DeviceManager an abstract class and delegates the device initialization and enumeration to per-backend sub-classes. The responsible for creating the device manager is, obviously, the backend singleton. The X11 and Win32 backends have been updated to the new layout; the Win32 backend has been updated blindly, so it might require additional testing.
402 lines
12 KiB
C
402 lines
12 KiB
C
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* Copyright (C) 2009 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>
|
|
*/
|
|
|
|
/**
|
|
* SECTION:clutter-device-manager
|
|
* @short_description: Maintains the list of input devices
|
|
*
|
|
* #ClutterDeviceManager is a singleton object, owned by Clutter, which
|
|
* maintains the list of #ClutterInputDevice<!-- -->s.
|
|
*
|
|
* Depending on the backend used by Clutter it is possible to use the
|
|
* #ClutterDeviceManager::device-added and
|
|
* #ClutterDeviceManager::device-removed to monitor addition and removal
|
|
* of devices.
|
|
*
|
|
* #ClutterDeviceManager is available since Clutter 1.2
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "clutter-debug.h"
|
|
#include "clutter-device-manager.h"
|
|
#include "clutter-enum-types.h"
|
|
#include "clutter-marshal.h"
|
|
#include "clutter-private.h"
|
|
|
|
#define CLUTTER_DEVICE_MANAGER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_DEVICE_MANAGER, ClutterDeviceManagerPrivate))
|
|
|
|
struct _ClutterDeviceManagerPrivate
|
|
{
|
|
/* back-pointer to the backend */
|
|
ClutterBackend *backend;
|
|
};
|
|
|
|
enum
|
|
{
|
|
PROP_0,
|
|
|
|
PROP_BACKEND
|
|
};
|
|
|
|
enum
|
|
{
|
|
DEVICE_ADDED,
|
|
DEVICE_REMOVED,
|
|
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
static guint manager_signals[LAST_SIGNAL] = { 0, };
|
|
|
|
G_DEFINE_ABSTRACT_TYPE (ClutterDeviceManager,
|
|
clutter_device_manager,
|
|
G_TYPE_OBJECT);
|
|
|
|
static void
|
|
clutter_device_manager_set_property (GObject *gobject,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
ClutterDeviceManagerPrivate *priv = CLUTTER_DEVICE_MANAGER (gobject)->priv;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_BACKEND:
|
|
priv->backend = g_value_get_object (value);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_device_manager_get_property (GObject *gobject,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
ClutterDeviceManagerPrivate *priv = CLUTTER_DEVICE_MANAGER (gobject)->priv;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_BACKEND:
|
|
g_value_set_object (value, priv->backend);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_device_manager_class_init (ClutterDeviceManagerClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
GParamSpec *pspec;
|
|
|
|
g_type_class_add_private (klass, sizeof (ClutterDeviceManagerPrivate));
|
|
|
|
gobject_class->set_property = clutter_device_manager_set_property;
|
|
gobject_class->get_property = clutter_device_manager_get_property;
|
|
|
|
pspec = g_param_spec_object ("backend",
|
|
"Backend",
|
|
"The ClutterBackend of the device manager",
|
|
CLUTTER_TYPE_BACKEND,
|
|
CLUTTER_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY);
|
|
g_object_class_install_property (gobject_class, PROP_BACKEND, pspec);
|
|
|
|
/**
|
|
* ClutterDeviceManager::device-added:
|
|
* @manager: the #ClutterDeviceManager that emitted the signal
|
|
* @device: the newly added #ClutterInputDevice
|
|
*
|
|
* The ::device-added signal is emitted each time a device has been
|
|
* added to the #ClutterDeviceManager
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
manager_signals[DEVICE_ADDED] =
|
|
g_signal_new (I_("device-added"),
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL,
|
|
clutter_marshal_VOID__OBJECT,
|
|
G_TYPE_NONE, 1,
|
|
CLUTTER_TYPE_INPUT_DEVICE);
|
|
|
|
/**
|
|
* ClutterDeviceManager::device-removed:
|
|
* @manager: the #ClutterDeviceManager that emitted the signal
|
|
* @device: the removed #ClutterInputDevice
|
|
*
|
|
* The ::device-removed signal is emitted each time a device has been
|
|
* removed from the #ClutterDeviceManager
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
manager_signals[DEVICE_REMOVED] =
|
|
g_signal_new (I_("device-removed"),
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL,
|
|
clutter_marshal_VOID__OBJECT,
|
|
G_TYPE_NONE, 1,
|
|
CLUTTER_TYPE_INPUT_DEVICE);
|
|
}
|
|
|
|
static void
|
|
clutter_device_manager_init (ClutterDeviceManager *self)
|
|
{
|
|
self->priv = CLUTTER_DEVICE_MANAGER_GET_PRIVATE (self);
|
|
}
|
|
|
|
/**
|
|
* clutter_device_manager_get_default:
|
|
*
|
|
* Retrieves the device manager singleton
|
|
*
|
|
* Return value: (transfer none): the #ClutterDeviceManager singleton.
|
|
* The returned instance is owned by Clutter and it should not be
|
|
* modified or freed
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
ClutterDeviceManager *
|
|
clutter_device_manager_get_default (void)
|
|
{
|
|
ClutterBackendClass *klass;
|
|
|
|
klass = CLUTTER_BACKEND_GET_CLASS (clutter_get_default_backend ());
|
|
g_assert (klass->get_device_manager != NULL);
|
|
|
|
return klass->get_device_manager (clutter_get_default_backend ());
|
|
}
|
|
|
|
/**
|
|
* clutter_device_manager_list_devices:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
*
|
|
* Lists all currently registered input devices
|
|
*
|
|
* Return value: (transfer container) (element-type ClutterInputDevice):
|
|
* a newly allocated list of #ClutterInputDevice objects. Use
|
|
* g_slist_free() to deallocate it when done
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
GSList *
|
|
clutter_device_manager_list_devices (ClutterDeviceManager *device_manager)
|
|
{
|
|
const GSList *devices;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
devices = clutter_device_manager_peek_devices (device_manager);
|
|
|
|
return g_slist_copy ((GSList *) devices);
|
|
}
|
|
|
|
/**
|
|
* clutter_device_manager_peek_devices:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
*
|
|
* Lists all currently registered input devices
|
|
*
|
|
* Return value: (transfer none) (element-type ClutterInputDevice):
|
|
* a pointer to the internal list of #ClutterInputDevice objects. The
|
|
* returned list is owned by the #ClutterDeviceManager and should never
|
|
* be modified or freed
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
const GSList *
|
|
clutter_device_manager_peek_devices (ClutterDeviceManager *device_manager)
|
|
{
|
|
ClutterDeviceManagerClass *manager_class;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
|
|
return manager_class->get_devices (device_manager);
|
|
}
|
|
|
|
/**
|
|
* clutter_device_manager_get_device:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
* @device_id: the integer id of a device
|
|
*
|
|
* Retrieves the #ClutterInputDevice with the given @device_id
|
|
*
|
|
* Return value: (transfer none): a #ClutterInputDevice or %NULL. The
|
|
* returned device is owned by the #ClutterDeviceManager and should
|
|
* never be modified or freed
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
ClutterInputDevice *
|
|
clutter_device_manager_get_device (ClutterDeviceManager *device_manager,
|
|
gint device_id)
|
|
{
|
|
ClutterDeviceManagerClass *manager_class;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
|
|
return manager_class->get_device (device_manager, device_id);
|
|
}
|
|
|
|
/**
|
|
* clutter_device_manager_get_core_device:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
* @device_type: the type of the core device
|
|
*
|
|
* Retrieves the core #ClutterInputDevice of type @device_type
|
|
*
|
|
* Core devices are devices created automatically by the default
|
|
* Clutter backend
|
|
*
|
|
* Return value: (transfer none): a #ClutterInputDevice or %NULL. The
|
|
* returned device is owned by the #ClutterDeviceManager and should
|
|
* not be modified or freed
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
ClutterInputDevice *
|
|
clutter_device_manager_get_core_device (ClutterDeviceManager *device_manager,
|
|
ClutterInputDeviceType device_type)
|
|
{
|
|
ClutterDeviceManagerClass *manager_class;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
|
|
return manager_class->get_core_device (device_manager, device_type);
|
|
}
|
|
|
|
/*
|
|
* _clutter_device_manager_add_device:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
* @device: a #ClutterInputDevice
|
|
*
|
|
* Adds @device to the list of #ClutterInputDevice<!-- -->s maintained
|
|
* by @device_manager
|
|
*
|
|
* The reference count of @device is not increased
|
|
*
|
|
* The #ClutterDeviceManager::device-added signal is emitted after
|
|
* adding @device to the list
|
|
*/
|
|
void
|
|
_clutter_device_manager_add_device (ClutterDeviceManager *device_manager,
|
|
ClutterInputDevice *device)
|
|
{
|
|
ClutterDeviceManagerClass *manager_class;
|
|
|
|
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
|
|
|
|
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
|
|
g_assert (manager_class->add_device != NULL);
|
|
|
|
manager_class->add_device (device_manager, device);
|
|
|
|
g_signal_emit (device_manager, manager_signals[DEVICE_ADDED], 0, device);
|
|
}
|
|
|
|
/*
|
|
* _clutter_device_manager_remove_device:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
* @device: a #ClutterInputDevice
|
|
*
|
|
* Removes @device from the list of #ClutterInputDevice<!-- -->s
|
|
* maintained by @device_manager
|
|
*
|
|
* The reference count of @device is not decreased
|
|
*
|
|
* The #ClutterDeviceManager::device-removed signal is emitted after
|
|
* removing @device from the list
|
|
*/
|
|
void
|
|
_clutter_device_manager_remove_device (ClutterDeviceManager *device_manager,
|
|
ClutterInputDevice *device)
|
|
{
|
|
ClutterDeviceManagerClass *manager_class;
|
|
|
|
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
|
|
|
|
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
|
|
g_assert (manager_class->remove_device != NULL);
|
|
|
|
manager_class->remove_device (device_manager, device);
|
|
|
|
g_signal_emit (device_manager, manager_signals[DEVICE_REMOVED], 0, device);
|
|
}
|
|
|
|
/*
|
|
* _clutter_device_manager_update_devices:
|
|
* @device_manager: a #ClutterDeviceManager
|
|
*
|
|
* Updates every #ClutterInputDevice handled by @device_manager
|
|
* by performing a pick paint at the coordinates of each pointer
|
|
* device
|
|
*/
|
|
void
|
|
_clutter_device_manager_update_devices (ClutterDeviceManager *device_manager)
|
|
{
|
|
const GSList *d;
|
|
|
|
/* the user disabled motion events delivery on actors; we
|
|
* don't perform any picking since the source of the events
|
|
* will always be set to be the stage
|
|
*/
|
|
if (!clutter_get_motion_events_enabled ())
|
|
return;
|
|
|
|
for (d = clutter_device_manager_peek_devices (device_manager);
|
|
d != NULL;
|
|
d = d->next)
|
|
{
|
|
ClutterInputDevice *device = d->data;
|
|
ClutterInputDeviceType device_type;
|
|
|
|
/* we only care about pointer devices */
|
|
device_type = clutter_input_device_get_device_type (device);
|
|
if (device_type != CLUTTER_POINTER_DEVICE)
|
|
continue;
|
|
|
|
/* out of stage */
|
|
if (device->stage == NULL)
|
|
continue;
|
|
|
|
_clutter_input_device_update (device);
|
|
}
|
|
}
|