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Viewing changes to plugins/orientation/gsd-orientation-manager.c

  • Committer: Package Import Robot
  • Author(s): Robert Ancell
  • Date: 2014-02-07 11:44:36 UTC
  • Revision ID: package-import@ubuntu.com-20140207114436-7t5u3yvwc4ul7w3e
Tags: upstream-14.04.0
Import upstream version 14.04.0

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plugins/orientation/gsd-orientation-manager.c
 
1
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
 
2
 *
 
3
 * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
 
4
 * Copyright (C) 2010,2011 Red Hat, Inc.
 
5
 *
 
6
 * Author: Bastien Nocera <hadess@hadess.net>
 
7
 *
 
8
 * This program is free software; you can redistribute it and/or modify
 
9
 * it under the terms of the GNU General Public License as published by
 
10
 * the Free Software Foundation; either version 2 of the License, or
 
11
 * (at your option) any later version.
 
12
 *
 
13
 * This program is distributed in the hope that it will be useful,
 
14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
16
 * GNU General Public License for more details.
 
17
 *
 
18
 * You should have received a copy of the GNU General Public License
 
19
 * along with this program; if not, write to the Free Software
 
20
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
21
 *
 
22
 */
 
23
 
 
24
#include "config.h"
 
25
 
 
26
#include <fcntl.h>
 
27
#include <glib.h>
 
28
#include <gtk/gtk.h>
 
29
#include <gdk/gdk.h>
 
30
#include <gdk/gdkx.h>
 
31
#include <gudev/gudev.h>
 
32
 
 
33
#define GNOME_DESKTOP_USE_UNSTABLE_API
 
34
#include <libgnome-desktop/gnome-rr.h>
 
35
 
 
36
#include "gsd-input-helper.h"
 
37
#include "gnome-settings-plugin.h"
 
38
#include "gnome-settings-profile.h"
 
39
#include "gsd-orientation-manager.h"
 
40
 
 
41
typedef enum {
 
42
        ORIENTATION_UNDEFINED,
 
43
        ORIENTATION_NORMAL,
 
44
        ORIENTATION_BOTTOM_UP,
 
45
        ORIENTATION_LEFT_UP,
 
46
        ORIENTATION_RIGHT_UP
 
47
} OrientationUp;
 
48
 
 
49
#define GSD_ORIENTATION_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GSD_TYPE_ORIENTATION_MANAGER, GsdOrientationManagerPrivate))
 
50
 
 
51
struct GsdOrientationManagerPrivate
 
52
{
 
53
        guint start_idle_id;
 
54
        guint name_id;
 
55
 
 
56
        /* Accelerometer */
 
57
        char *sysfs_path;
 
58
        OrientationUp prev_orientation;
 
59
 
 
60
        /* DBus */
 
61
        GDBusNodeInfo   *introspection_data;
 
62
        GDBusConnection *connection;
 
63
        GDBusProxy      *xrandr_proxy;
 
64
        GCancellable    *cancellable;
 
65
 
 
66
        /* Notifications */
 
67
        GUdevClient *client;
 
68
        GSettings *settings;
 
69
        gboolean orientation_lock;
 
70
};
 
71
 
 
72
#define CONF_SCHEMA "org.gnome.settings-daemon.peripherals.touchscreen"
 
73
#define ORIENTATION_LOCK_KEY "orientation-lock"
 
74
 
 
75
#define GSD_ORIENTATION_DBUS_NAME GSD_DBUS_NAME ".Orientation"
 
76
#define GSD_ORIENTATION_DBUS_PATH GSD_DBUS_PATH "/Orientation"
 
77
 
 
78
static const gchar introspection_xml[] =
 
79
"<node>"
 
80
"  <interface name='org.gnome.SettingsDaemon.Orientation'>"
 
81
"    <annotation name='org.freedesktop.DBus.GLib.CSymbol' value='gsd_orientation_manager'/>"
 
82
"  </interface>"
 
83
"</node>";
 
84
 
 
85
static void     gsd_orientation_manager_class_init  (GsdOrientationManagerClass *klass);
 
86
static void     gsd_orientation_manager_init        (GsdOrientationManager      *orientation_manager);
 
87
static void     gsd_orientation_manager_finalize    (GObject                    *object);
 
88
 
 
89
G_DEFINE_TYPE (GsdOrientationManager, gsd_orientation_manager, G_TYPE_OBJECT)
 
90
 
 
91
static gpointer manager_object = NULL;
 
92
 
 
93
#define MPU_THRESHOLD 12000
 
94
#define MPU_POLL_INTERVAL 1
 
95
 
 
96
static gboolean is_mpu6050 = FALSE;
 
97
static char *mpu6050_accel_x = NULL;
 
98
static char *mpu6050_accel_y = NULL;
 
99
static gboolean mpu_timer(GsdOrientationManager *manager);
 
100
 
 
101
static GObject *
 
102
gsd_orientation_manager_constructor (GType                     type,
 
103
                               guint                      n_construct_properties,
 
104
                               GObjectConstructParam     *construct_properties)
 
105
{
 
106
        GsdOrientationManager      *orientation_manager;
 
107
 
 
108
        orientation_manager = GSD_ORIENTATION_MANAGER (G_OBJECT_CLASS (gsd_orientation_manager_parent_class)->constructor (type,
 
109
                                                                                                         n_construct_properties,
 
110
                                                                                                         construct_properties));
 
111
 
 
112
        return G_OBJECT (orientation_manager);
 
113
}
 
114
 
 
115
static void
 
116
gsd_orientation_manager_dispose (GObject *object)
 
117
{
 
118
        G_OBJECT_CLASS (gsd_orientation_manager_parent_class)->dispose (object);
 
119
}
 
120
 
 
121
static void
 
122
gsd_orientation_manager_class_init (GsdOrientationManagerClass *klass)
 
123
{
 
124
        GObjectClass   *object_class = G_OBJECT_CLASS (klass);
 
125
 
 
126
        object_class->constructor = gsd_orientation_manager_constructor;
 
127
        object_class->dispose = gsd_orientation_manager_dispose;
 
128
        object_class->finalize = gsd_orientation_manager_finalize;
 
129
 
 
130
        g_type_class_add_private (klass, sizeof (GsdOrientationManagerPrivate));
 
131
}
 
132
 
 
133
static void
 
134
gsd_orientation_manager_init (GsdOrientationManager *manager)
 
135
{
 
136
        manager->priv = GSD_ORIENTATION_MANAGER_GET_PRIVATE (manager);
 
137
        manager->priv->prev_orientation = ORIENTATION_UNDEFINED;
 
138
}
 
139
 
 
140
static GnomeRRRotation
 
141
orientation_to_rotation (OrientationUp    orientation)
 
142
{
 
143
        switch (orientation) {
 
144
        case ORIENTATION_NORMAL:
 
145
                return GNOME_RR_ROTATION_0;
 
146
        case ORIENTATION_BOTTOM_UP:
 
147
                return GNOME_RR_ROTATION_180;
 
148
        case ORIENTATION_LEFT_UP:
 
149
                return GNOME_RR_ROTATION_90;
 
150
        case ORIENTATION_RIGHT_UP:
 
151
                return GNOME_RR_ROTATION_270;
 
152
        default:
 
153
                g_assert_not_reached ();
 
154
        }
 
155
}
 
156
 
 
157
static OrientationUp
 
158
orientation_from_string (const char *orientation)
 
159
{
 
160
        if (g_strcmp0 (orientation, "normal") == 0)
 
161
                return ORIENTATION_NORMAL;
 
162
        if (g_strcmp0 (orientation, "bottom-up") == 0)
 
163
                return ORIENTATION_BOTTOM_UP;
 
164
        if (g_strcmp0 (orientation, "left-up") == 0)
 
165
                return ORIENTATION_LEFT_UP;
 
166
        if (g_strcmp0 (orientation, "right-up") == 0)
 
167
                return ORIENTATION_RIGHT_UP;
 
168
 
 
169
        return ORIENTATION_UNDEFINED;
 
170
}
 
171
 
 
172
static const char *
 
173
orientation_to_string (OrientationUp o)
 
174
{
 
175
        switch (o) {
 
176
        case ORIENTATION_UNDEFINED:
 
177
                return "undefined";
 
178
        case ORIENTATION_NORMAL:
 
179
                return "normal";
 
180
        case ORIENTATION_BOTTOM_UP:
 
181
                return "bottom-up";
 
182
        case ORIENTATION_LEFT_UP:
 
183
                return "left-up";
 
184
        case ORIENTATION_RIGHT_UP:
 
185
                return "right-up";
 
186
        default:
 
187
                g_assert_not_reached ();
 
188
        }
 
189
}
 
190
 
 
191
static OrientationUp
 
192
get_orientation_from_device (GUdevDevice *dev)
 
193
{
 
194
        const char *value;
 
195
 
 
196
        value = g_udev_device_get_property (dev, "ID_INPUT_ACCELEROMETER_ORIENTATION");
 
197
        if (value == NULL) {
 
198
                g_debug ("Couldn't find orientation for accelerometer %s",
 
199
                         g_udev_device_get_sysfs_path (dev));
 
200
                return ORIENTATION_UNDEFINED;
 
201
        }
 
202
        g_debug ("Found orientation '%s' for accelerometer %s",
 
203
                 value, g_udev_device_get_sysfs_path (dev));
 
204
 
 
205
        return orientation_from_string (value);
 
206
}
 
207
 
 
208
static void
 
209
on_xrandr_action_call_finished (GObject               *source_object,
 
210
                                GAsyncResult          *res,
 
211
                                GsdOrientationManager *manager)
 
212
{
 
213
        GError *error = NULL;
 
214
        GVariant *variant;
 
215
 
 
216
        variant = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
 
217
 
 
218
        g_object_unref (manager->priv->cancellable);
 
219
        manager->priv->cancellable = NULL;
 
220
 
 
221
        if (error != NULL) {
 
222
                g_warning ("Unable to call 'RotateTo': %s", error->message);
 
223
                g_error_free (error);
 
224
        } else {
 
225
                g_variant_unref (variant);
 
226
        }
 
227
}
 
228
 
 
229
static void
 
230
do_xrandr_action (GsdOrientationManager *manager,
 
231
                  GnomeRRRotation        rotation)
 
232
{
 
233
        GsdOrientationManagerPrivate *priv = manager->priv;
 
234
        GTimeVal tv;
 
235
        gint64 timestamp;
 
236
 
 
237
        if (priv->connection == NULL || priv->xrandr_proxy == NULL) {
 
238
                g_warning ("No existing D-Bus connection trying to handle XRANDR keys");
 
239
                return;
 
240
        }
 
241
 
 
242
        if (priv->cancellable != NULL) {
 
243
                g_debug ("xrandr action already in flight");
 
244
                return;
 
245
        }
 
246
 
 
247
        g_get_current_time (&tv);
 
248
        timestamp = tv.tv_sec * 1000 + tv.tv_usec / 1000;
 
249
 
 
250
        priv->cancellable = g_cancellable_new ();
 
251
 
 
252
        g_dbus_proxy_call (priv->xrandr_proxy,
 
253
                           "RotateTo",
 
254
                           g_variant_new ("(ix)", rotation, timestamp),
 
255
                           G_DBUS_CALL_FLAGS_NONE,
 
256
                           -1,
 
257
                           priv->cancellable,
 
258
                           (GAsyncReadyCallback) on_xrandr_action_call_finished,
 
259
                           manager);
 
260
}
 
261
 
 
262
static void
 
263
do_rotation (GsdOrientationManager *manager)
 
264
{
 
265
        GnomeRRRotation rotation;
 
266
 
 
267
        if (manager->priv->orientation_lock) {
 
268
                g_debug ("Orientation changed, but we are locked");
 
269
                return;
 
270
        }
 
271
        if (manager->priv->prev_orientation == ORIENTATION_UNDEFINED) {
 
272
                g_debug ("Not trying to rotate, orientation is undefined");
 
273
                return;
 
274
        }
 
275
 
 
276
        rotation = orientation_to_rotation (manager->priv->prev_orientation);
 
277
 
 
278
        do_xrandr_action (manager, rotation);
 
279
}
 
280
 
 
281
static void
 
282
client_uevent_cb (GUdevClient           *client,
 
283
                  gchar                 *action,
 
284
                  GUdevDevice           *device,
 
285
                  GsdOrientationManager *manager)
 
286
{
 
287
        const char *sysfs_path;
 
288
        OrientationUp orientation;
 
289
 
 
290
        sysfs_path = g_udev_device_get_sysfs_path (device);
 
291
        g_debug ("Received uevent '%s' from '%s'", action, sysfs_path);
 
292
 
 
293
        if (manager->priv->orientation_lock)
 
294
                return;
 
295
 
 
296
        if (g_str_equal (action, "change") == FALSE)
 
297
                return;
 
298
 
 
299
        if (g_strcmp0 (manager->priv->sysfs_path, sysfs_path) != 0)
 
300
                return;
 
301
 
 
302
        g_debug ("Received an event from the accelerometer");
 
303
 
 
304
        orientation = get_orientation_from_device (device);
 
305
        if (orientation != manager->priv->prev_orientation) {
 
306
                manager->priv->prev_orientation = orientation;
 
307
                g_debug ("Orientation changed to '%s', switching screen rotation",
 
308
                         orientation_to_string (manager->priv->prev_orientation));
 
309
 
 
310
                do_rotation (manager);
 
311
        }
 
312
}
 
313
 
 
314
static void
 
315
orientation_lock_changed_cb (GSettings             *settings,
 
316
                             gchar                 *key,
 
317
                             GsdOrientationManager *manager)
 
318
{
 
319
        gboolean new;
 
320
 
 
321
        new = g_settings_get_boolean (settings, key);
 
322
        if (new == manager->priv->orientation_lock)
 
323
                return;
 
324
 
 
325
        manager->priv->orientation_lock = new;
 
326
        
 
327
        if (new == FALSE) {
 
328
                if (is_mpu6050) {
 
329
                        g_timeout_add_seconds(MPU_POLL_INTERVAL, (GSourceFunc) mpu_timer, manager);
 
330
                }
 
331
                /* Handle the rotations that could have occurred while
 
332
                 * we were locked */
 
333
                do_rotation (manager);
 
334
        }
 
335
}
 
336
 
 
337
static void
 
338
xrandr_ready_cb (GObject               *source_object,
 
339
                 GAsyncResult          *res,
 
340
                 GsdOrientationManager *manager)
 
341
{
 
342
        GError *error = NULL;
 
343
 
 
344
        manager->priv->xrandr_proxy = g_dbus_proxy_new_finish (res, &error);
 
345
        if (manager->priv->xrandr_proxy == NULL) {
 
346
                g_warning ("Failed to get proxy for XRandR operations: %s", error->message);
 
347
                g_error_free (error);
 
348
        }
 
349
}
 
350
 
 
351
static void
 
352
on_bus_gotten (GObject               *source_object,
 
353
               GAsyncResult          *res,
 
354
               GsdOrientationManager *manager)
 
355
{
 
356
        GDBusConnection *connection;
 
357
        GError *error = NULL;
 
358
 
 
359
        connection = g_bus_get_finish (res, &error);
 
360
        if (connection == NULL) {
 
361
                g_warning ("Could not get session bus: %s", error->message);
 
362
                g_error_free (error);
 
363
                return;
 
364
        }
 
365
        manager->priv->connection = connection;
 
366
 
 
367
        g_dbus_connection_register_object (connection,
 
368
                                           GSD_ORIENTATION_DBUS_PATH,
 
369
                                           manager->priv->introspection_data->interfaces[0],
 
370
                                           NULL,
 
371
                                           NULL,
 
372
                                           NULL,
 
373
                                           NULL);
 
374
 
 
375
        g_dbus_proxy_new (manager->priv->connection,
 
376
                          G_DBUS_PROXY_FLAGS_NONE,
 
377
                          NULL,
 
378
                          GSD_DBUS_NAME ".XRANDR",
 
379
                          GSD_DBUS_PATH "/XRANDR",
 
380
                          GSD_DBUS_BASE_INTERFACE ".XRANDR_2",
 
381
                          NULL,
 
382
                          (GAsyncReadyCallback) xrandr_ready_cb,
 
383
                          manager);
 
384
 
 
385
        manager->priv->name_id = g_bus_own_name_on_connection (connection,
 
386
                                                               GSD_ORIENTATION_DBUS_NAME,
 
387
                                                               G_BUS_NAME_OWNER_FLAGS_NONE,
 
388
                                                               NULL,
 
389
                                                               NULL,
 
390
                                                               NULL,
 
391
                                                               NULL);
 
392
}
 
393
 
 
394
static GUdevDevice *
 
395
get_accelerometer (GUdevClient *client)
 
396
{
 
397
        GList *list, *listiio, *l;
 
398
        GUdevDevice *ret, *parent;
 
399
 
 
400
        /* Look for a device with the ID_INPUT_ACCELEROMETER=1 property */
 
401
        ret = NULL;
 
402
        list = g_udev_client_query_by_subsystem (client, "input");
 
403
        listiio = g_udev_client_query_by_subsystem (client, "iio");
 
404
        list = g_list_concat(list, listiio);
 
405
        for (l = list; l != NULL; l = l->next) {
 
406
                GUdevDevice *dev;
 
407
 
 
408
                dev = l->data;
 
409
                if (g_udev_device_get_property_as_boolean (dev, "ID_INPUT_ACCELEROMETER")) {
 
410
                        ret = dev;
 
411
                        continue;
 
412
                }
 
413
                g_object_unref (dev);
 
414
        }
 
415
        g_list_free (list);
 
416
 
 
417
        if (ret == NULL)
 
418
                return NULL;
 
419
 
 
420
        /* Now walk up to the parent */
 
421
        parent = g_udev_device_get_parent (ret);
 
422
        if (parent == NULL)
 
423
                return ret;
 
424
 
 
425
        if (g_udev_device_get_property_as_boolean (parent, "ID_INPUT_ACCELEROMETER")) {
 
426
                g_object_unref (ret);
 
427
                ret = parent;
 
428
        } else {
 
429
                g_object_unref (parent);
 
430
        }
 
431
 
 
432
        return ret;
 
433
}
 
434
 
 
435
static int read_sysfs_attr_as_int(const char *filename) {
 
436
        int i, c;
 
437
        char buf[40];
 
438
        int fd = open(filename, O_RDONLY);
 
439
        if (fd < 0)
 
440
                return 0;
 
441
        c = read(fd, buf, 40);
 
442
        if (c < 0)
 
443
                return 0;
 
444
        close(fd);
 
445
        sscanf(buf, "%d", &i);
 
446
        
 
447
        return i;
 
448
}
 
449
 
 
450
static gboolean mpu_timer(GsdOrientationManager *manager) {
 
451
        int x, y;
 
452
        static gboolean first = TRUE;
 
453
        OrientationUp orientation = manager->priv->prev_orientation;
 
454
 
 
455
        if (manager->priv->xrandr_proxy == NULL)
 
456
                return TRUE;
 
457
 
 
458
        x = read_sysfs_attr_as_int(mpu6050_accel_x);
 
459
        y = read_sysfs_attr_as_int(mpu6050_accel_y);
 
460
 
 
461
        if (x > MPU_THRESHOLD)
 
462
                orientation = ORIENTATION_NORMAL;
 
463
        if (x < -MPU_THRESHOLD)
 
464
                orientation = ORIENTATION_BOTTOM_UP;
 
465
        if (y > MPU_THRESHOLD)
 
466
                orientation = ORIENTATION_RIGHT_UP;
 
467
        if (y < -MPU_THRESHOLD)
 
468
                orientation = ORIENTATION_LEFT_UP;
 
469
 
 
470
        if (orientation != manager->priv->prev_orientation || first) {
 
471
                first = FALSE;
 
472
                manager->priv->prev_orientation = orientation;
 
473
                g_debug ("Orientation changed to '%s', switching screen rotation",
 
474
                         orientation_to_string (manager->priv->prev_orientation));
 
475
 
 
476
                do_rotation (manager);
 
477
        }
 
478
 
 
479
        return !manager->priv->orientation_lock;
 
480
}
 
481
 
 
482
static gboolean
 
483
gsd_orientation_manager_idle_cb (GsdOrientationManager *manager)
 
484
{
 
485
        const char * const subsystems[] = { "input", NULL };
 
486
        GUdevDevice *dev;
 
487
 
 
488
        gnome_settings_profile_start (NULL);
 
489
 
 
490
        manager->priv->settings = g_settings_new (CONF_SCHEMA);
 
491
        manager->priv->orientation_lock = g_settings_get_boolean (manager->priv->settings, ORIENTATION_LOCK_KEY);
 
492
        g_signal_connect (G_OBJECT (manager->priv->settings), "changed::orientation-lock",
 
493
                          G_CALLBACK (orientation_lock_changed_cb), manager);
 
494
 
 
495
        manager->priv->client = g_udev_client_new (subsystems);
 
496
        dev = get_accelerometer (manager->priv->client);
 
497
        if (dev == NULL) {
 
498
                g_debug ("Did not find an accelerometer");
 
499
                gnome_settings_profile_end (NULL);
 
500
                return FALSE;
 
501
        }
 
502
        manager->priv->sysfs_path = g_strdup (g_udev_device_get_sysfs_path (dev));
 
503
        g_debug ("Found accelerometer at sysfs path '%s'", manager->priv->sysfs_path);
 
504
 
 
505
        manager->priv->prev_orientation = get_orientation_from_device (dev);
 
506
 
 
507
        /* Poll the sysfs attributes exposed by MPU6050 as it is not an uevent based input driver */
 
508
        if (g_strcmp0 (g_udev_device_get_sysfs_attr (dev, "name"), "mpu6050") == 0) {
 
509
                manager->priv->prev_orientation = ORIENTATION_NORMAL;
 
510
                g_timeout_add_seconds(MPU_POLL_INTERVAL, (GSourceFunc) mpu_timer, manager);
 
511
                mpu6050_accel_x = g_build_filename(manager->priv->sysfs_path, "in_accel_x_raw", NULL);
 
512
                mpu6050_accel_y = g_build_filename(manager->priv->sysfs_path, "in_accel_y_raw", NULL);
 
513
                is_mpu6050 = TRUE;
 
514
        }
 
515
 
 
516
        g_object_unref (dev);
 
517
 
 
518
        /* Start process of owning a D-Bus name */
 
519
        g_bus_get (G_BUS_TYPE_SESSION,
 
520
                   NULL,
 
521
                   (GAsyncReadyCallback) on_bus_gotten,
 
522
                   manager);
 
523
 
 
524
        g_signal_connect (G_OBJECT (manager->priv->client), "uevent",
 
525
                          G_CALLBACK (client_uevent_cb), manager);
 
526
 
 
527
        gnome_settings_profile_end (NULL);
 
528
 
 
529
        return FALSE;
 
530
}
 
531
 
 
532
gboolean
 
533
gsd_orientation_manager_start (GsdOrientationManager *manager,
 
534
                         GError         **error)
 
535
{
 
536
        gnome_settings_profile_start (NULL);
 
537
 
 
538
        manager->priv->start_idle_id = g_idle_add ((GSourceFunc) gsd_orientation_manager_idle_cb, manager);
 
539
 
 
540
        manager->priv->introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL);
 
541
        g_assert (manager->priv->introspection_data != NULL);
 
542
 
 
543
        gnome_settings_profile_end (NULL);
 
544
 
 
545
        return TRUE;
 
546
}
 
547
 
 
548
void
 
549
gsd_orientation_manager_stop (GsdOrientationManager *manager)
 
550
{
 
551
        GsdOrientationManagerPrivate *p = manager->priv;
 
552
 
 
553
        g_debug ("Stopping orientation manager");
 
554
 
 
555
        if (p->settings) {
 
556
                g_object_unref (p->settings);
 
557
                p->settings = NULL;
 
558
        }
 
559
 
 
560
        if (p->sysfs_path) {
 
561
                g_free (p->sysfs_path);
 
562
                p->sysfs_path = NULL;
 
563
        }
 
564
 
 
565
        if (p->introspection_data) {
 
566
                g_dbus_node_info_unref (p->introspection_data);
 
567
                p->introspection_data = NULL;
 
568
        }
 
569
 
 
570
        if (p->client) {
 
571
                g_object_unref (p->client);
 
572
                p->client = NULL;
 
573
        }
 
574
}
 
575
 
 
576
static void
 
577
gsd_orientation_manager_finalize (GObject *object)
 
578
{
 
579
        GsdOrientationManager *orientation_manager;
 
580
 
 
581
        g_return_if_fail (object != NULL);
 
582
        g_return_if_fail (GSD_IS_ORIENTATION_MANAGER (object));
 
583
 
 
584
        orientation_manager = GSD_ORIENTATION_MANAGER (object);
 
585
 
 
586
        g_return_if_fail (orientation_manager->priv != NULL);
 
587
 
 
588
        if (orientation_manager->priv->start_idle_id != 0)
 
589
                g_source_remove (orientation_manager->priv->start_idle_id);
 
590
 
 
591
        if (orientation_manager->priv->name_id != 0)
 
592
                g_bus_unown_name (orientation_manager->priv->name_id);
 
593
 
 
594
        G_OBJECT_CLASS (gsd_orientation_manager_parent_class)->finalize (object);
 
595
}
 
596
 
 
597
GsdOrientationManager *
 
598
gsd_orientation_manager_new (void)
 
599
{
 
600
        if (manager_object != NULL) {
 
601
                g_object_ref (manager_object);
 
602
        } else {
 
603
                manager_object = g_object_new (GSD_TYPE_ORIENTATION_MANAGER, NULL);
 
604
                g_object_add_weak_pointer (manager_object,
 
605
                                           (gpointer *) &manager_object);
 
606
        }
 
607
 
 
608
        return GSD_ORIENTATION_MANAGER (manager_object);
 
609
}