mirror of
https://github.com/brl/mutter.git
synced 2024-09-20 06:25:51 -04:00
130286979d
The device manager does not need to update the state of the devices when the user has disabled the delivery of motion events to actors: the events will always be delivered as they are to the stage.
297 lines
8.2 KiB
C
297 lines
8.2 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.
|
|
*
|
|
* #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_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_DEVICE_MANAGER, ClutterDeviceManagerClass))
|
|
#define CLUTTER_IS_DEVICE_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_DEVICE_MANAGER))
|
|
#define CLUTTER_DEVICE_MANAGER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_DEVICE_MANAGER, ClutterDeviceManagerClass))
|
|
|
|
typedef struct _ClutterDeviceManagerClass ClutterDeviceManagerClass;
|
|
|
|
struct _ClutterDeviceManagerClass
|
|
{
|
|
GObjectClass parent_instance;
|
|
};
|
|
|
|
enum
|
|
{
|
|
DEVICE_ADDED,
|
|
DEVICE_REMOVED,
|
|
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
static ClutterDeviceManager *default_manager = NULL;
|
|
|
|
static guint manager_signals[LAST_SIGNAL] = { 0, };
|
|
|
|
G_DEFINE_TYPE (ClutterDeviceManager, clutter_device_manager, G_TYPE_OBJECT);
|
|
|
|
static void
|
|
clutter_device_manager_class_init (ClutterDeviceManagerClass *klass)
|
|
{
|
|
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,
|
|
G_TYPE_POINTER);
|
|
|
|
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,
|
|
G_TYPE_POINTER);
|
|
}
|
|
|
|
static void
|
|
clutter_device_manager_init (ClutterDeviceManager *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)
|
|
{
|
|
if (G_UNLIKELY (default_manager == NULL))
|
|
default_manager = g_object_new (CLUTTER_TYPE_DEVICE_MANAGER, NULL);
|
|
|
|
return default_manager;
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
return g_slist_copy (device_manager->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)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
return device_manager->devices;
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
GSList *l;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
|
|
|
|
for (l = device_manager->devices; l != NULL; l = l->next)
|
|
{
|
|
ClutterInputDevice *device = l->data;
|
|
|
|
if (device->id == device_id)
|
|
return device;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gint
|
|
input_device_cmp (gconstpointer a,
|
|
gconstpointer b)
|
|
{
|
|
const ClutterInputDevice *device_a = a;
|
|
const ClutterInputDevice *device_b = b;
|
|
|
|
if (device_a->id < device_b->id)
|
|
return -1;
|
|
|
|
if (device_a->id > device_b->id)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* _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)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
|
|
|
|
device_manager->devices = g_slist_insert_sorted (device_manager->devices,
|
|
device,
|
|
input_device_cmp);
|
|
|
|
g_signal_emit (device_manager, manager_signals[DEVICE_ADDED], 0, device);
|
|
}
|
|
|
|
/*
|
|
* _clutter_device_manager_remobe_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)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
|
|
|
|
if (g_slist_find (device_manager->devices, device) == NULL)
|
|
return;
|
|
|
|
device_manager->devices = g_slist_remove (device_manager->devices, 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)
|
|
{
|
|
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 = device_manager->devices; 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);
|
|
}
|
|
}
|