pepper-dali/internal/extensions/tizen-policy.cpp

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include "tizen-policy.h"
  19
  20 #include <dali/integration-api/debug.h>
  21 #include <tizen-extension-server-protocol.h>
  22
  23 namespace Dali
  24 {
  25
  26 namespace Pepper
  27 {
  28
  29 namespace Internal
  30 {
  31
  32 namespace Extension
  33 {
  34
  35 namespace
  36 {
  37
  38 #if defined(DEBUG_ENABLED)
  39 Integration::Log::Filter* gPepperTizenPolicyLogging  = Integration::Log::Filter::New( Debug::Verbose, false, "LOG_PEPPER_TIZEN_POLICY" );
  40 #endif
  41
  42 } // unnamed namespace
  43
  44 /* tizen policy data for pepper_surface_t */
  45 typedef struct
  46 {
  47    pepper_surface_t *psurf;
  48    pepper_event_listener_t *psurf_destroy_listener;
  49    struct wl_list resource_list;
  50    VisibilityState visibility;
  51    int references;
  52 } tzpol_surface_t;
  53
  54 const static char       *tsurf_data_key = "tzpol-surf";
  55 static struct wl_global *_tzpol_global = NULL;
  56 static struct wl_list    _tzpol_res_list;
  57
  58 static void
  59 _tzpol_surface_del(tzpol_surface_t *tsurf)
  60 {
  61    free(tsurf);
  62 }
  63
  64 static void
  65 _tzpol_surface_unref(tzpol_surface_t *tsurf, struct wl_resource *unref)
  66 {
  67    int res;
  68
  69    res = wl_list_empty(&tsurf->resource_list);
  70    if (res)
  71      {
  72         DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "Couldn't unreference, list is empty" );
  73         return;
  74      }
  75
  76    wl_list_remove(wl_resource_get_link(unref));
  77    wl_resource_set_user_data(unref, NULL);
  78
  79    res = wl_list_empty(&tsurf->resource_list);
  80    if (res)
  81      {
  82         pepper_event_listener_remove(tsurf->psurf_destroy_listener);
  83         pepper_object_set_user_data((pepper_object_t *)tsurf->psurf,
  84                                     (const void *)tsurf_data_key, NULL, NULL);
  85         _tzpol_surface_del(tsurf);
  86      }
  87 }
  88
  89 static void
  90 _tzpol_surface_ref(tzpol_surface_t *tsurf, struct wl_resource *ref)
  91 {
  92    wl_list_insert(&tsurf->resource_list, wl_resource_get_link(ref));
  93    wl_resource_set_user_data(ref, tsurf);
  94 }
  95
  96 static void
  97 _tzpol_surface_pepper_surf_cb_destroy(pepper_event_listener_t *listener, pepper_object_t *object, uint32_t id, void *info, void *data)
  98 {
  99    tzpol_surface_t *tsurf;
 100    struct wl_resource *res, *tmp;
 101
 102    tsurf = (tzpol_surface_t*)data;
 103
 104    wl_resource_for_each_safe(res, tmp, &tsurf->resource_list)
 105         _tzpol_surface_unref(tsurf, res);
 106 }
 107
 108 static tzpol_surface_t *
 109 _tzpol_surface_get(pepper_surface_t *psurf)
 110 {
 111    tzpol_surface_t *tsurf;
 112
 113    tsurf = (tzpol_surface_t*)pepper_object_get_user_data((pepper_object_t *)psurf,
 114                                        (const void *)tsurf_data_key);
 115    if (!tsurf)
 116      {
 117         tsurf = (tzpol_surface_t*)calloc(1, sizeof(*tsurf));
 118         if (!tsurf)
 119           return NULL;
 120
 121         tsurf->psurf = psurf;
 122
 123         wl_list_init(&tsurf->resource_list);
 124
 125         tsurf->psurf_destroy_listener =
 126            pepper_object_add_event_listener((pepper_object_t *)psurf,
 127                                             PEPPER_EVENT_OBJECT_DESTROY, 0,
 128                                             _tzpol_surface_pepper_surf_cb_destroy, tsurf);
 129         pepper_object_set_user_data((pepper_object_t *)psurf,
 130                                     (const void *)tsurf_data_key, tsurf, NULL);
 131      }
 132
 133    tsurf->references++;
 134
 135    return tsurf;
 136 }
 137
 138 // --------------------------------------------------------
 139 // visibility
 140 // --------------------------------------------------------
 141 static void
 142 _tzvis_iface_cb_destroy(struct wl_client *client, struct wl_resource *res_tzvis)
 143 {
 144    wl_resource_destroy(res_tzvis);
 145 }
 146
 147 static const struct tizen_visibility_interface _tzvis_iface =
 148 {
 149    _tzvis_iface_cb_destroy
 150 };
 151
 152 static void
 153 _tzvis_res_cb_destroy(struct wl_resource *res_tzvis)
 154 {
 155    tzpol_surface_t *tsurf;
 156
 157    tsurf = (tzpol_surface_t*)wl_resource_get_user_data(res_tzvis);
 158    if (!tsurf)
 159      return;
 160
 161    _tzpol_surface_unref(tsurf, res_tzvis);
 162 }
 163
 164 static void
 165 _tzpol_iface_cb_vis_get(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t id, struct wl_resource *surf)
 166 {
 167    tzpol_surface_t *tsurf;
 168    pepper_surface_t *psurf;
 169    struct wl_resource *new_res;
 170    int ver;
 171
 172    if (!surf)
 173      {
 174         wl_resource_post_error(res_tzpol, WL_DISPLAY_ERROR_INVALID_OBJECT,
 175                                "tizen_policy::visibility_get requires surface");
 176         return;
 177      }
 178
 179    psurf = (pepper_surface_t*)wl_resource_get_user_data(surf);
 180    if (!psurf)
 181      {
 182         DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "failed to get pepper_surface from wl_resource" );
 183         wl_resource_post_error(res_tzpol, WL_DISPLAY_ERROR_INVALID_OBJECT,
 184                                "tizen_policy::visibility_get invalid surface resource");
 185         return;
 186      }
 187
 188    DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "tizen_policy::visibility_get" );
 189    tsurf = _tzpol_surface_get(psurf);
 190    if (!tsurf)
 191      {
 192         wl_resource_post_no_memory(res_tzpol);
 193         return;
 194      }
 195
 196    ver = wl_resource_get_version(res_tzpol);
 197    new_res = wl_resource_create(client, &tizen_visibility_interface, ver, id);
 198    if (!new_res)
 199      {
 200         wl_resource_post_no_memory(res_tzpol);
 201         return;
 202      }
 203
 204    wl_resource_set_implementation(new_res, &_tzvis_iface, tsurf, _tzvis_res_cb_destroy);
 205    _tzpol_surface_ref(tsurf, new_res);
 206 }
 207
 208 // --------------------------------------------------------
 209 // position
 210 // --------------------------------------------------------
 211 static void
 212 _tzpos_iface_cb_destroy(struct wl_client *client, struct wl_resource *res_tzpos)
 213 {
 214    wl_resource_destroy(res_tzpos);
 215 }
 216
 217 static void
 218 _tzpos_iface_cb_set(struct wl_client *client, struct wl_resource *res_tzpos, int32_t x, int32_t y)
 219 {
 220    (void)client;
 221    (void)res_tzpos;
 222    (void)x;
 223    (void)y;
 224 }
 225
 226 static const struct tizen_position_interface _tzpos_iface =
 227 {
 228    _tzpos_iface_cb_destroy,
 229    _tzpos_iface_cb_set,
 230 };
 231
 232 static void
 233 _tzpos_res_cb_destroy(struct wl_resource *res_tzpos)
 234 {
 235    tzpol_surface_t *tsurf;
 236
 237    tsurf = (tzpol_surface_t*)wl_resource_get_user_data(res_tzpos);
 238    if (!tsurf)
 239      return;
 240
 241    _tzpol_surface_unref(tsurf, res_tzpos);
 242 }
 243
 244 static void
 245 _tzpol_iface_cb_pos_get(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t id, struct wl_resource *surf)
 246 {
 247    tzpol_surface_t *tsurf;
 248    pepper_surface_t *psurf;
 249    struct wl_resource *new_res;
 250    int ver;
 251
 252    if (!surf)
 253      {
 254         wl_resource_post_error(res_tzpol, WL_DISPLAY_ERROR_INVALID_OBJECT,
 255                                "tizen_policy::visibility_get requires surface");
 256         return;
 257      }
 258
 259    psurf = (pepper_surface_t*)wl_resource_get_user_data(surf);
 260    if (!psurf)
 261      {
 262         DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "failed to get pepper_surface from wl_resource" );
 263         wl_resource_post_error(res_tzpol, WL_DISPLAY_ERROR_INVALID_OBJECT,
 264                                "tizen_policy::visibility_get invalid surface resource");
 265         return;
 266      }
 267
 268    DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "tizen_policy::visibility_get" );
 269    tsurf = _tzpol_surface_get(psurf);
 270    if (!tsurf)
 271      {
 272         wl_resource_post_no_memory(res_tzpol);
 273         return;
 274      }
 275
 276    ver = wl_resource_get_version(res_tzpol);
 277    new_res = wl_resource_create(client, &tizen_position_interface, ver, id);
 278    if (!new_res)
 279      {
 280         wl_resource_post_no_memory(res_tzpol);
 281         return;
 282      }
 283
 284    wl_resource_set_implementation(new_res, &_tzpos_iface, tsurf, _tzpos_res_cb_destroy);
 285    _tzpol_surface_ref(tsurf, new_res);
 286 }
 287
 288 // --------------------------------------------------------
 289 // stack: activate, raise, lower
 290 // --------------------------------------------------------
 291 static void
 292 _tzpol_iface_cb_activate(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 293 {
 294    (void)client;
 295    (void)res_tzpol;
 296    (void)surf;
 297 }
 298
 299 static void
 300 _tzpol_iface_cb_activate_below_by_res_id(struct wl_client *client, struct wl_resource *res_tzpol,  uint32_t res_id, uint32_t below_res_id)
 301 {
 302    (void)client;
 303    (void)res_tzpol;
 304    (void)res_id;
 305    (void)below_res_id;
 306 }
 307
 308 static void
 309 _tzpol_iface_cb_raise(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 310 {
 311    (void)client;
 312    (void)res_tzpol;
 313    (void)surf;
 314 }
 315
 316 static void
 317 _tzpol_iface_cb_lower(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 318 {
 319    (void)client;
 320    (void)res_tzpol;
 321    (void)surf;
 322 }
 323
 324 static void
 325 _tzpol_iface_cb_lower_by_res_id(struct wl_client *client, struct wl_resource *res_tzpol,  uint32_t res_id)
 326 {
 327    (void)client;
 328    (void)res_tzpol;
 329    (void)res_id;
 330 }
 331
 332 // --------------------------------------------------------
 333 // focus
 334 // --------------------------------------------------------
 335 static void
 336 _tzpol_iface_cb_focus_skip_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 337 {
 338    (void)client;
 339    (void)res_tzpol;
 340    (void)surf;
 341 }
 342
 343 static void
 344 _tzpol_iface_cb_focus_skip_unset(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 345 {
 346    (void)client;
 347    (void)res_tzpol;
 348    (void)surf;
 349 }
 350
 351 // --------------------------------------------------------
 352 // role
 353 // --------------------------------------------------------
 354 static void
 355 _tzpol_iface_cb_role_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, const char *role)
 356 {
 357    (void)client;
 358    (void)res_tzpol;
 359    (void)surf;
 360    (void)role;
 361 }
 362
 363 static void
 364 _tzpol_iface_cb_type_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, uint32_t type)
 365 {
 366    (void)client;
 367    (void)res_tzpol;
 368    (void)surf;
 369    (void)type;
 370 }
 371
 372 // --------------------------------------------------------
 373 // conformant
 374 // --------------------------------------------------------
 375 static void
 376 _tzpol_iface_cb_conformant_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 377 {
 378    (void)client;
 379    (void)res_tzpol;
 380    (void)surf;
 381 }
 382
 383 static void
 384 _tzpol_iface_cb_conformant_unset(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 385 {
 386    (void)client;
 387    (void)res_tzpol;
 388    (void)surf;
 389 }
 390
 391 static void
 392 _tzpol_iface_cb_conformant_get(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 393 {
 394    (void)client;
 395    (void)res_tzpol;
 396    (void)surf;
 397 }
 398
 399 // --------------------------------------------------------
 400 // notification level
 401 // --------------------------------------------------------
 402 static void
 403 _tzpol_iface_cb_notilv_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, int32_t lv)
 404 {
 405    (void)client;
 406    (void)res_tzpol;
 407    (void)surf;
 408    (void)lv;
 409 }
 410
 411 // --------------------------------------------------------
 412 // transient for
 413 // --------------------------------------------------------
 414 static void
 415 _tzpol_iface_cb_transient_for_set(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t child_id, uint32_t parent_id)
 416 {
 417    (void)client;
 418    (void)res_tzpol;
 419    (void)child_id;
 420    (void)parent_id;
 421 }
 422
 423 static void
 424 _tzpol_iface_cb_transient_for_unset(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t child_id)
 425 {
 426    (void)client;
 427    (void)res_tzpol;
 428    (void)child_id;
 429 }
 430
 431 // --------------------------------------------------------
 432 // window screen mode
 433 // --------------------------------------------------------
 434 static void
 435 _tzpol_iface_cb_win_scrmode_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, uint32_t mode)
 436 {
 437    (void)client;
 438    (void)res_tzpol;
 439    (void)surf;
 440    (void)mode;
 441 }
 442
 443 // --------------------------------------------------------
 444 // subsurface
 445 // --------------------------------------------------------
 446 static void
 447 _tzpol_iface_cb_subsurf_place_below_parent(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *subsurf)
 448 {
 449    (void)client;
 450    (void)res_tzpol;
 451    (void)subsurf;
 452 }
 453
 454 static void
 455 _tzpol_iface_cb_subsurface_get(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t id, struct wl_resource *surface, uint32_t parent_id)
 456 {
 457    (void)client;
 458    (void)res_tzpol;
 459    (void)id;
 460    (void)surface;
 461    (void)parent_id;
 462 }
 463
 464 static void
 465 _tzpol_iface_cb_opaque_state_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surface, int32_t state)
 466 {
 467    (void)client;
 468    (void)res_tzpol;
 469    (void)surface;
 470    (void)state;
 471 }
 472
 473 // --------------------------------------------------------
 474 // iconify
 475 // --------------------------------------------------------
 476 static void
 477 _tzpol_iface_cb_iconify(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 478 {
 479    (void)client;
 480    (void)res_tzpol;
 481    (void)surf;
 482 }
 483
 484 static void
 485 _tzpol_iface_cb_uniconify(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 486 {
 487    (void)client;
 488    (void)res_tzpol;
 489    (void)surf;
 490 }
 491
 492 static void
 493 _tzpol_iface_cb_aux_hint_add(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, int32_t id, const char *name, const char *value)
 494 {
 495    (void)client;
 496    (void)res_tzpol;
 497    (void)surf;
 498    (void)id;
 499    (void)name;
 500    (void)value;
 501 }
 502
 503 static void
 504 _tzpol_iface_cb_aux_hint_change(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, int32_t id, const char *value)
 505 {
 506    (void)client;
 507    (void)res_tzpol;
 508    (void)surf;
 509    (void)id;
 510    (void)value;
 511 }
 512
 513 static void
 514 _tzpol_iface_cb_aux_hint_del(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, int32_t id)
 515 {
 516    (void)client;
 517    (void)res_tzpol;
 518    (void)surf;
 519    (void)id;
 520 }
 521
 522 static void
 523 _tzpol_iface_cb_supported_aux_hints_get(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 524 {
 525    (void)client;
 526    (void)res_tzpol;
 527    (void)surf;
 528 }
 529
 530 static void
 531 _tzpol_iface_cb_background_state_set(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t pid)
 532 {
 533    (void)client;
 534    (void)res_tzpol;
 535    (void)pid;
 536 }
 537
 538 static void
 539 _tzpol_iface_cb_background_state_unset(struct wl_client *client, struct wl_resource *res_tzpol, uint32_t pid)
 540 {
 541    (void)client;
 542    (void)res_tzpol;
 543    (void)pid;
 544 }
 545
 546 static void
 547 _tzpol_iface_cb_floating_mode_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 548 {
 549    (void)client;
 550    (void)res_tzpol;
 551    (void)surf;
 552 }
 553
 554 static void
 555 _tzpol_iface_cb_floating_mode_unset(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf)
 556 {
 557    (void)client;
 558    (void)res_tzpol;
 559    (void)surf;
 560 }
 561
 562 static void
 563 _tzpol_iface_cb_stack_mode_set(struct wl_client *client, struct wl_resource *res_tzpol, struct wl_resource *surf, uint32_t mode)
 564 {
 565    (void)client;
 566    (void)res_tzpol;
 567    (void)surf;
 568    (void)mode;
 569 }
 570
 571 static const struct tizen_policy_interface _tzpol_iface =
 572 {
 573    _tzpol_iface_cb_vis_get,
 574    _tzpol_iface_cb_pos_get,
 575    _tzpol_iface_cb_activate,
 576    _tzpol_iface_cb_activate_below_by_res_id,
 577    _tzpol_iface_cb_raise,
 578    _tzpol_iface_cb_lower,
 579    _tzpol_iface_cb_lower_by_res_id,
 580    _tzpol_iface_cb_focus_skip_set,
 581    _tzpol_iface_cb_focus_skip_unset,
 582    _tzpol_iface_cb_role_set,
 583    _tzpol_iface_cb_type_set,
 584    _tzpol_iface_cb_conformant_set,
 585    _tzpol_iface_cb_conformant_unset,
 586    _tzpol_iface_cb_conformant_get,
 587    _tzpol_iface_cb_notilv_set,
 588    _tzpol_iface_cb_transient_for_set,
 589    _tzpol_iface_cb_transient_for_unset,
 590    _tzpol_iface_cb_win_scrmode_set,
 591    _tzpol_iface_cb_subsurf_place_below_parent,
 592    _tzpol_iface_cb_subsurface_get,
 593    _tzpol_iface_cb_opaque_state_set,
 594    _tzpol_iface_cb_iconify,
 595    _tzpol_iface_cb_uniconify,
 596    _tzpol_iface_cb_aux_hint_add,
 597    _tzpol_iface_cb_aux_hint_change,
 598    _tzpol_iface_cb_aux_hint_del,
 599    _tzpol_iface_cb_supported_aux_hints_get,
 600    _tzpol_iface_cb_background_state_set,
 601    _tzpol_iface_cb_background_state_unset,
 602    _tzpol_iface_cb_floating_mode_set,
 603    _tzpol_iface_cb_floating_mode_unset,
 604    _tzpol_iface_cb_stack_mode_set,
 605 };
 606
 607 static void
 608 _tzpol_cb_bind(struct wl_client *client, void *data, uint32_t ver, uint32_t id)
 609 {
 610    struct wl_resource *resource;
 611
 612    DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "tizen_policy::bind" );
 613
 614    resource = wl_resource_create(client, &tizen_policy_interface, ver, id);
 615    if (!resource)
 616      {
 617         DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "failed to create resource for tizen_policy" );
 618         wl_client_post_no_memory(client);
 619         return;
 620      }
 621
 622    wl_resource_set_implementation(resource, &_tzpol_iface, NULL, NULL);
 623
 624    wl_list_insert(&_tzpol_res_list, wl_resource_get_link(resource));
 625 }
 626
 627 bool
 628 TizenPolicyInit(pepper_compositor_t *comp)
 629 {
 630    struct wl_display *wl_disp;
 631
 632    DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "tizen_policy::init" );
 633
 634    if (_tzpol_global)
 635      goto end;
 636
 637    wl_list_init(&_tzpol_res_list);
 638
 639    wl_disp = pepper_compositor_get_display(comp);
 640    _tzpol_global = wl_global_create(wl_disp, &tizen_policy_interface, 1, NULL, _tzpol_cb_bind);
 641    if (!_tzpol_global)
 642      {
 643         DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "failed to create global for tizen policy" );
 644         return false;
 645      }
 646 end:
 647    return true;
 648 }
 649
 650 void
 651 TizenPolicyShutdown(void)
 652 {
 653    struct wl_resource *res, *tmp;
 654
 655    DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "tizen_policy::shutdown" );
 656
 657    wl_resource_for_each_safe(res, tmp, &_tzpol_res_list)
 658      {
 659         wl_list_remove(wl_resource_get_link(res));
 660         wl_resource_destroy(res);
 661      }
 662
 663    wl_global_destroy(_tzpol_global);
 664    _tzpol_global = NULL;
 665 }
 666
 667 bool
 668 TizenPolicySetVisibility( pepper_surface_t* psurf, VisibilityState state )
 669 {
 670    tzpol_surface_t *tsurf;
 671    struct wl_resource *resource;
 672    int res;
 673
 674    tsurf = (tzpol_surface_t*)pepper_object_get_user_data((pepper_object_t *)psurf, (const void *)tsurf_data_key);
 675    if (!tsurf)
 676      {
 677         DALI_LOG_INFO( gPepperTizenPolicyLogging, Debug::General, "there is no data for 'tzpol_surface_t' in 'pepper_surface_t'" );
 678         return false;
 679      }
 680
 681    if (tsurf->visibility == state)
 682      return true;
 683
 684    tsurf->visibility = state;
 685    wl_resource_for_each(resource, &tsurf->resource_list)
 686      {
 687         res = wl_resource_instance_of(resource, &tizen_visibility_interface, &_tzvis_iface);
 688         if (!res)
 689           continue;
 690         tizen_visibility_send_notify(resource, state);
 691      }
 692
 693    return true;
 694 }
 695
 696 } // namespace Extension
 697
 698 } // namespace Internal
 699
 700 } // namespace Pepper
 701
 702 } // namespace Dali