src/appcore-rotation.c

   1 /*
   2  *  app-core
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact: Jayoun Lee <airjany@samsung.com>, Sewook Park <sewook7.park@samsung.com>, Jaeho Lee <jaeho81.lee@samsung.com>
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  */
  21
  22
  23 #include <errno.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26
  27 #include <sensor.h>
  28 #include <vconf.h>
  29 #include <Ecore_X.h>
  30 #include <Ecore.h>
  31 #include <X11/Xlib.h>
  32
  33 #include "appcore-internal.h"
  34
  35 #define _MAKE_ATOM(a, s)                              \
  36    do {                                               \
  37         a = ecore_x_atom_get(s);                      \
  38         if (!a)                                       \
  39           _ERR("##s creation failed.\n");             \
  40    } while(0)
  41
  42 #define STR_ATOM_ROTATION_LOCK                "_E_ROTATION_LOCK"
  43
  44 static Ecore_X_Atom ATOM_ROTATION_LOCK = 0;
  45 static Ecore_X_Window root;
  46
  47 struct rot_s {
  48         int handle;
  49         int (*callback) (enum appcore_rm, void *);
  50         enum appcore_rm mode;
  51         int lock;
  52         void *cbdata;
  53         int cb_set;
  54         int sf_started;
  55
  56         struct ui_wm_rotate* wm_rotate;
  57 };
  58 static struct rot_s rot;
  59
  60 struct rot_evt {
  61         enum accelerometer_rotate_state re;
  62         enum appcore_rm rm;
  63 };
  64
  65 static struct rot_evt re_to_rm[] = {
  66         {
  67          ROTATION_EVENT_0,
  68           APPCORE_RM_PORTRAIT_NORMAL,
  69         },
  70         {
  71          ROTATION_EVENT_90,
  72          APPCORE_RM_LANDSCAPE_NORMAL,
  73         },
  74         {
  75          ROTATION_EVENT_180,
  76          APPCORE_RM_PORTRAIT_REVERSE,
  77         },
  78         {
  79          ROTATION_EVENT_270,
  80          APPCORE_RM_LANDSCAPE_REVERSE,
  81         },
  82 };
  83
  84 static enum appcore_rm __get_mode(int event_data)
  85 {
  86         int i;
  87         enum appcore_rm m;
  88
  89         m = APPCORE_RM_UNKNOWN;
  90
  91         for (i = 0; i < sizeof(re_to_rm) / sizeof(re_to_rm[0]); i++) {
  92                 if (re_to_rm[i].re == event_data) {
  93                         m = re_to_rm[i].rm;
  94                         break;
  95                 }
  96         }
  97
  98         return m;
  99 }
 100
 101 static void __changed_cb(unsigned int event_type, sensor_event_data_t *event,
 102                        void *data)
 103 {
 104         int *cb_event_data;
 105         enum appcore_rm m;
 106         int ret;
 107
 108         if (rot.lock)
 109                 return;
 110
 111         if (event_type != ACCELEROMETER_EVENT_ROTATION_CHECK) {
 112                 errno = EINVAL;
 113                 return;
 114         }
 115
 116         cb_event_data = (int *)(event->event_data);
 117
 118         m = __get_mode(*cb_event_data);
 119
 120         _DBG("[APP %d] Rotation: %d -> %d", getpid(), rot.mode, m);
 121
 122         if (rot.callback) {
 123                 if (rot.cb_set && rot.mode != m) {
 124                         _DBG("[APP %d] Rotation: %d -> %d", getpid(), rot.mode, m);
 125                         rot.callback(m, data);
 126                         rot.mode = m;
 127                 }
 128         }
 129 }
 130
 131 static void __lock_cb(keynode_t *node, void *data)
 132 {
 133         int r;
 134         enum appcore_rm m;
 135         int ret;
 136
 137         rot.lock = !vconf_keynode_get_bool(node);
 138
 139         if (rot.lock) {
 140                 m = APPCORE_RM_PORTRAIT_NORMAL;
 141                 if (rot.mode != m) {
 142                         rot.callback(m, data);
 143                         rot.mode = m;
 144                 }
 145                 _DBG("[APP %d] Rotation locked", getpid());
 146                 return;
 147         }
 148
 149         _DBG("[APP %d] Rotation unlocked", getpid());
 150         if (rot.callback) {
 151                 if (rot.cb_set) {
 152                         r = appcore_get_rotation_state(&m);
 153                         _DBG("[APP %d] Rotmode prev %d -> curr %d", getpid(),
 154                              rot.mode, m);
 155                         if (!r && rot.mode != m) {
 156                                 rot.callback(m, data);
 157                                 rot.mode = m;
 158                         }
 159                 }
 160         }
 161 }
 162
 163 static void __add_rotlock(void *data)
 164 {
 165         int r;
 166         int lock;
 167
 168         lock = 0;
 169         r = vconf_get_bool(VCONFKEY_SETAPPL_AUTO_ROTATE_SCREEN_BOOL, &lock);
 170         if (r) {
 171                 _DBG("[APP %d] Rotation vconf get bool failed", getpid());
 172         }
 173
 174         rot.lock = !lock;
 175
 176         vconf_notify_key_changed(VCONFKEY_SETAPPL_AUTO_ROTATE_SCREEN_BOOL, __lock_cb,
 177                                  data);
 178 }
 179
 180 static void __del_rotlock(void)
 181 {
 182         vconf_ignore_key_changed(VCONFKEY_SETAPPL_AUTO_ROTATE_SCREEN_BOOL, __lock_cb);
 183         rot.lock = 0;
 184 }
 185
 186 EXPORT_API int appcore_set_rotation_cb(int (*cb) (enum appcore_rm, void *),
 187                                        void *data)
 188 {
 189         if (rot.wm_rotate) {
 190                 return rot.wm_rotate->set_rotation_cb(cb, data);
 191         }
 192         else {
 193                 int r;
 194                 int handle;
 195
 196                 if (cb == NULL) {
 197                         errno = EINVAL;
 198                         return -1;
 199                 }
 200
 201                 if (rot.callback != NULL) {
 202                         errno = EALREADY;
 203                         return -1;
 204                 }
 205
 206                 handle = sf_connect(ACCELEROMETER_SENSOR);
 207                 if (handle < 0) {
 208                         _ERR("sf_connect failed: %d", handle);
 209                         return -1;
 210                 }
 211
 212                 r = sf_register_event(handle, ACCELEROMETER_EVENT_ROTATION_CHECK,
 213                                       NULL, __changed_cb, data);
 214                 if (r < 0) {
 215                         _ERR("sf_register_event failed: %d", r);
 216                         sf_disconnect(handle);
 217                         return -1;
 218                 }
 219
 220                 rot.cb_set = 1;
 221                 rot.callback = cb;
 222                 rot.cbdata = data;
 223
 224                 r = sf_start(handle, 0);
 225                 if (r < 0) {
 226                         _ERR("sf_start failed: %d", r);
 227                         sf_unregister_event(handle, ACCELEROMETER_EVENT_ROTATION_CHECK);
 228                         rot.callback = NULL;
 229                         rot.cbdata = NULL;
 230                         rot.cb_set = 0;
 231                         rot.sf_started = 0;
 232                         sf_disconnect(handle);
 233                         return -1;
 234                 }
 235                 rot.sf_started = 1;
 236
 237                 rot.handle = handle;
 238                 __add_rotlock(data);
 239
 240                 _MAKE_ATOM(ATOM_ROTATION_LOCK, STR_ATOM_ROTATION_LOCK );
 241                 root =  ecore_x_window_root_first_get();
 242                 XSelectInput(ecore_x_display_get(), root, PropertyChangeMask);
 243         }
 244         return 0;
 245 }
 246
 247 EXPORT_API int appcore_unset_rotation_cb(void)
 248 {
 249         if (rot.wm_rotate) {
 250                 return rot.wm_rotate->unset_rotation_cb();
 251         }
 252         else {
 253                 int r;
 254
 255                 _retv_if(rot.callback == NULL, 0);
 256
 257                 __del_rotlock();
 258
 259                 if (rot.cb_set) {
 260                         r = sf_unregister_event(rot.handle,
 261                                                 ACCELEROMETER_EVENT_ROTATION_CHECK);
 262                         if (r < 0) {
 263                                 _ERR("sf_unregister_event failed: %d", r);
 264                                 return -1;
 265                         }
 266                         rot.cb_set = 0;
 267                 }
 268                 rot.callback = NULL;
 269                 rot.cbdata = NULL;
 270
 271                 if (rot.sf_started == 1) {
 272                         r = sf_stop(rot.handle);
 273                         if (r < 0) {
 274                                 _ERR("sf_stop failed: %d", r);
 275                                 return -1;
 276                         }
 277                         rot.sf_started = 0;
 278                 }
 279
 280                 r = sf_disconnect(rot.handle);
 281                 if (r < 0) {
 282                         _ERR("sf_disconnect failed: %d", r);
 283                         return -1;
 284                 }
 285                 rot.handle = -1;
 286         }
 287         return 0;
 288 }
 289
 290 EXPORT_API int appcore_get_rotation_state(enum appcore_rm *curr)
 291 {
 292         if (rot.wm_rotate) {
 293                 return rot.wm_rotate->get_rotation_state(curr);
 294         }
 295         else {
 296                 int r;
 297                 unsigned long event;
 298
 299                 if (curr == NULL) {
 300                         errno = EINVAL;
 301                         return -1;
 302                 }
 303
 304                 r = sf_check_rotation(&event);
 305                 if (r < 0) {
 306                         _ERR("sf_check_rotation failed: %d", r);
 307                         *curr = APPCORE_RM_UNKNOWN;
 308                         return -1;
 309                 }
 310
 311                 *curr = __get_mode(event);
 312         }
 313         return 0;
 314 }
 315
 316 EXPORT_API int appcore_pause_rotation_cb(void)
 317 {
 318         if (rot.wm_rotate) {
 319                 return rot.wm_rotate->pause_rotation_cb();
 320         }
 321         else {
 322                 int r;
 323
 324                 _retv_if(rot.callback == NULL, 0);
 325                 _DBG("[APP %d] appcore_pause_rotation_cb is called", getpid());
 326
 327                 __del_rotlock();
 328
 329                 if (rot.cb_set) {
 330                         r = sf_unregister_event(rot.handle,
 331                                                 ACCELEROMETER_EVENT_ROTATION_CHECK);
 332                         if (r < 0) {
 333                                 _ERR("sf_unregister_event in appcore_internal_sf_stop failed: %d", r);
 334                                 return -1;
 335                         }
 336                         rot.cb_set = 0;
 337                 }
 338
 339                 if (rot.sf_started == 1) {
 340                         r = sf_stop(rot.handle);
 341                         if (r < 0) {
 342                                 _ERR("sf_stop in appcore_internal_sf_stop failed: %d",
 343                                      r);
 344                                 return -1;
 345                         }
 346                         rot.sf_started = 0;
 347                 }
 348         }
 349
 350         return 0;
 351 }
 352
 353 EXPORT_API int appcore_resume_rotation_cb(void)
 354 {
 355         if (rot.wm_rotate) {
 356                 return rot.wm_rotate->resume_rotation_cb();
 357         }
 358         else {
 359                 int r;
 360                 enum appcore_rm m;
 361
 362                 _retv_if(rot.callback == NULL, 0);
 363                 _DBG("[APP %d] appcore_resume_rotation_cb is called", getpid());
 364
 365                 if (rot.cb_set == 0) {
 366                         r = sf_register_event(rot.handle,
 367                                               ACCELEROMETER_EVENT_ROTATION_CHECK, NULL,
 368                                               __changed_cb, rot.cbdata);
 369                         if (r < 0) {
 370                                 _ERR("sf_register_event in appcore_internal_sf_start failed: %d", r);
 371                                 return -1;
 372                         }
 373                         rot.cb_set = 1;
 374                 }
 375
 376                 if (rot.sf_started == 0) {
 377                         r = sf_start(rot.handle, 0);
 378                         if (r < 0) {
 379                                 _ERR("sf_start in appcore_internal_sf_start failed: %d",
 380                                      r);
 381                                 sf_unregister_event(rot.handle,
 382                                                     ACCELEROMETER_EVENT_ROTATION_CHECK);
 383                                 rot.cb_set = 0;
 384                                 return -1;
 385                         }
 386                         rot.sf_started = 1;
 387                 }
 388
 389                 __add_rotlock(rot.cbdata);
 390
 391                 r = appcore_get_rotation_state(&m);
 392                 _DBG("[APP %d] Rotmode prev %d -> curr %d", getpid(), rot.mode, m);
 393                 if (!r && rot.mode != m && rot.lock == 0) {
 394                         rot.callback(m, rot.cbdata);
 395                         rot.mode = m;
 396                 }
 397         }
 398         return 0;
 399 }
 400
 401 EXPORT_API int appcore_set_wm_rotation(struct ui_wm_rotate* wm_rotate)
 402 {
 403         if (!wm_rotate) return -1;
 404
 405         if (rot.callback) {
 406                 wm_rotate->set_rotation_cb(rot.callback, rot.cbdata);
 407                 appcore_unset_rotation_cb();
 408         }
 409         rot.wm_rotate = wm_rotate;
 410         _DBG("[APP %d] Support wm rotate:%p", getpid(), wm_rotate);
 411         return 0;
 412 }