src/wm_layer_control.cpp

   1 /*
   2  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
   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 #include <assert.h>
  17 #include <unistd.h>
  18 #include "wm_layer_control.hpp"
  19 #include "wm_layer.hpp"
  20 #include "wm_client.hpp"
  21 #include "request.hpp"
  22 #include "json_helper.hpp"
  23
  24 #define LC_AREA_PATH "/etc/areas.db"
  25 #define LC_LAYER_SETTING_PATH "/etc/layers_setting.json"
  26 #define LC_DEFAULT_AREA "fullscreen"
  27 #define BACK_GROUND_LAYER "BackGroundLayer"
  28
  29 using std::string;
  30 using std::vector;
  31 using std::shared_ptr;
  32
  33 namespace wm {
  34
  35 LayerControl* g_lc_ctxt;
  36
  37 static void createCallback_static(ilmObjectType object,
  38                             t_ilm_uint id,
  39                             t_ilm_bool created,
  40                             void* data)
  41 {
  42     static_cast<LayerControl*>(data)->dispatchCreateEvent(object, id, created);
  43 }
  44
  45 static void surfaceCallback_static(t_ilm_surface surface,
  46             struct ilmSurfaceProperties* surface_prop,
  47             t_ilm_notification_mask mask)
  48 {
  49     g_lc_ctxt->dispatchPropertyChangeEvent(surface, surface_prop, mask);
  50 }
  51
  52 static void layerCallback_static(t_ilm_layer layer,
  53             struct ilmLayerProperties* layer_prop,
  54             t_ilm_notification_mask mask)
  55 {
  56     g_lc_ctxt->dispatchPropertyChangeEvent(layer, layer_prop, mask);
  57 }
  58
  59 LayerControl::LayerControl(const std::string& root)
  60 {
  61     string area_path = root + LC_AREA_PATH;
  62     string layer_path= root + LC_LAYER_SETTING_PATH;
  63     // load layers.setting.json
  64     WMError ret = this->loadLayerSetting(layer_path);
  65     assert(ret == WMError::SUCCESS);
  66     // load area.db
  67     ret = this->loadAreaDb(area_path);
  68     assert(ret == WMError::SUCCESS);
  69 }
  70
  71 WMError LayerControl::init(const LayerControlCallbacks& cb)
  72 {
  73     HMI_DEBUG("Initialize of ilm library and display");
  74     t_ilm_uint num = 0;
  75     t_ilm_uint *ids;
  76     int cnt = 0;
  77     ilmErrorTypes rc = ilm_init();
  78
  79     while (rc != ILM_SUCCESS)
  80     {
  81         cnt++;
  82         if (20 <= cnt)
  83         {
  84             HMI_ERROR("Could not connect to compositor");
  85             goto lc_init_error;
  86         }
  87         HMI_ERROR("Wait to start weston ...");
  88         sleep(1);
  89         rc = ilm_init();
  90     }
  91     if(rc != ILM_SUCCESS) goto lc_init_error;
  92
  93     // Get current screen setting
  94     rc = ilm_getScreenIDs(&num, &ids);
  95
  96     if(rc != ILM_SUCCESS) goto lc_init_error;
  97
  98     for(unsigned i = 0; i < num; i++)
  99     {
 100         HMI_INFO("get screen: %d", ids[i]);
 101     }
 102     // Currently, 0 is only available
 103     this->screenID = ids[0];
 104
 105     rc = ilm_getPropertiesOfScreen(this->screenID, &this->screen_prop);
 106
 107     if(rc != ILM_SUCCESS) goto lc_init_error;
 108
 109     // Register Callback from ILM
 110     this->cb = cb;
 111     ilm_registerNotification(createCallback_static, this);
 112
 113     return WMError::SUCCESS;
 114
 115 lc_init_error:
 116     HMI_ERROR("Failed to initialize. Terminate WM");
 117
 118     return WMError::FAIL;
 119 }
 120
 121 void LayerControl::createNewLayer(unsigned id)
 122 {
 123     HMI_INFO("create new ID :%d", id);
 124     struct rect rct = this->area2size[LC_DEFAULT_AREA];
 125     ilm_layerCreateWithDimension(&id, rct.w, rct.h);
 126     //ilm_layerSetSourceRectangle(id, rct.x, rct.y, rct.w, rct.h);
 127     //ilm_layerSetDestinationRectangle(id, rct.x, rct.y, rct.w, rct.h);
 128     ilm_layerSetOpacity(id, 1.0);
 129     ilm_layerSetVisibility(id, ILM_FALSE);
 130     ilm_commitChanges();
 131     auto wm_layer = getWMLayer(id);
 132     wm_layer->addLayerToState(id);
 133     this->commitChange();
 134 }
 135
 136 unsigned LayerControl::getNewLayerID(const string& role, string* layer_name)
 137 {
 138     unsigned ret = 0;
 139     for(const auto& l: this->wm_layers)
 140     {
 141         ret = l->getNewLayerID(role);
 142         if(ret != 0)
 143         {
 144             *layer_name = l->layerName();
 145             unsigned uid = l->getUuid();
 146             this->lid2wmlid[ret] = uid;
 147             break;
 148         }
 149     }
 150     return ret;
 151 }
 152
 153 shared_ptr<WMLayer> LayerControl::getWMLayer(unsigned layer)
 154 {
 155     unsigned uuid = this->lid2wmlid[layer];
 156     return this->wm_layers[uuid];
 157 }
 158
 159 std::shared_ptr<WMLayer> LayerControl::getWMLayer(std::string layer_name)
 160 {
 161     for(auto &l : this->wm_layers)
 162     {
 163         if(l->layerName() == layer_name)
 164         {
 165             return l;
 166         }
 167     }
 168     return nullptr;
 169 }
 170
 171 struct rect LayerControl::getAreaSize(const std::string& area)
 172 {
 173     return area2size[area];
 174 }
 175
 176 void LayerControl::setupArea(const rectangle& base_rct, double scaling)
 177 {
 178     struct rect rct;
 179     this->scaling = scaling;
 180
 181     rct = this->area2size["normal.full"];
 182     this->area2size["normalfull"] = rct;
 183     this->area2size["normal"] = rct;
 184
 185     for (auto &i : this->area2size)
 186     {
 187         i.second.x = base_rct.left() + static_cast<int>(scaling * i.second.x + 0.5);
 188         i.second.y = base_rct.top() + static_cast<int>(scaling * i.second.y + 0.5);
 189         i.second.w = static_cast<int>(scaling * i.second.w + 0.5);
 190         i.second.h = static_cast<int>(scaling * i.second.h + 0.5);
 191
 192         HMI_DEBUG("area:%s size(after) : x:%d y:%d w:%d h:%d",
 193             i.first.c_str(), i.second.x, i.second.y, i.second.w, i.second.h);
 194     }
 195 }
 196
 197 Screen LayerControl::getScreenInfo()
 198 {
 199     return Screen(this->screen_prop.screenWidth, this->screen_prop.screenHeight);
 200 }
 201
 202 double LayerControl::scale()
 203 {
 204     return this->scaling;
 205 }
 206
 207 WMError LayerControl::updateLayer(LayerState& layer_state)
 208 {
 209     return WMError::SUCCESS;
 210 }
 211
 212 WMError LayerControl::commitChange()
 213 {
 214     HMI_INFO("Commit change");
 215     WMError rc = WMError::SUCCESS;
 216     vector<unsigned> ivi_l_ids;
 217     for(auto& l : this->wm_layers)
 218     {
 219         auto state = l->getLayerState();
 220         HMI_DEBUG("layer %s", l->layerName().c_str());
 221         for(const auto& id : state.getIviIdList())
 222         {
 223             HMI_DEBUG("Add %d", id);
 224             ivi_l_ids.push_back(id);
 225         }
 226     }
 227     t_ilm_layer* id_array = new t_ilm_layer[ivi_l_ids.size()];
 228     if(id_array == nullptr)
 229     {
 230         HMI_WARNING("short memory");
 231         this->undoUpdate();
 232         return WMError::FAIL;
 233     }
 234     int count = 0;
 235     for(const auto& i : ivi_l_ids)
 236     {
 237         id_array[count] = i;
 238         HMI_DEBUG("check render order %d", i);
 239         ++count;
 240     }
 241
 242     ilmErrorTypes ret = ilm_displaySetRenderOrder(this->screenID, id_array, ivi_l_ids.size());
 243     if(ret != ILM_SUCCESS)
 244     {
 245         this->undoUpdate();
 246         rc = WMError::FAIL;
 247     }
 248     else
 249     {
 250         for(auto& l : this->wm_layers)
 251         {
 252             l->commitChange();
 253         }
 254     }
 255     ilm_commitChanges();
 256     delete id_array;
 257     return rc;
 258 }
 259
 260 void LayerControl::undoUpdate() {}
 261
 262 WMError LayerControl::loadLayerSetting(const string &path)
 263 {
 264     HMI_DEBUG("loading WMLayer(Application Containers) Setting from %s", path);
 265
 266     json_object *json_obj, *json_cfg;
 267     int ret = jh::inputJsonFilie(path.c_str(), &json_obj);
 268     if (0 > ret)
 269     {
 270         HMI_DEBUG("Could not open %s, so use default area information", path.c_str());
 271         return WMError::FAIL;
 272     }
 273     HMI_INFO("json_obj dump:%s", json_object_get_string(json_obj));
 274
 275     if (!json_object_object_get_ex(json_obj, "mappings", &json_cfg))
 276     {
 277         HMI_ERROR("Parse Error!!");
 278         return WMError::FAIL;
 279     }
 280
 281     int len = json_object_array_length(json_cfg);
 282     HMI_DEBUG("json_cfg len:%d", len);
 283
 284     for (int i = 0; i < len; i++)
 285     {
 286         json_object *json_tmp = json_object_array_get_idx(json_cfg, i);
 287         HMI_DEBUG("> json_tmp dump:%s", json_object_get_string(json_tmp));
 288
 289         this->wm_layers.emplace_back(std::make_shared<WMLayer>(json_tmp, i));
 290     }
 291     json_object_put(json_obj);
 292
 293     return WMError::SUCCESS;
 294 }
 295
 296 WMError LayerControl::loadAreaDb(const std::string& path)
 297 {
 298     // Load area.db
 299     json_object *json_obj;
 300     int ret = jh::inputJsonFilie(path.c_str(), &json_obj);
 301     if (0 > ret)
 302     {
 303         HMI_DEBUG("Could not open %s, so use default area information", path.c_str());
 304         return WMError::FAIL;
 305     }
 306     HMI_INFO("json_obj dump:%s", json_object_get_string(json_obj));
 307
 308     // Perse areas
 309     json_object *json_cfg;
 310     if (!json_object_object_get_ex(json_obj, "areas", &json_cfg))
 311     {
 312         HMI_ERROR("Parse Error!!");
 313         return WMError::FAIL;
 314     }
 315
 316     int len = json_object_array_length(json_cfg);
 317     HMI_DEBUG("json_cfg len:%d", len);
 318
 319     const char *area;
 320     for (int i = 0; i < len; i++)
 321     {
 322         json_object *json_tmp = json_object_array_get_idx(json_cfg, i);
 323         HMI_DEBUG("> json_tmp dump:%s", json_object_get_string(json_tmp));
 324
 325         area = jh::getStringFromJson(json_tmp, "name");
 326         if (nullptr == area)
 327         {
 328             HMI_ERROR("Parse Error!!");
 329             return WMError::FAIL;
 330         }
 331         HMI_DEBUG("> area:%s", area);
 332
 333         json_object *json_rect;
 334         if (!json_object_object_get_ex(json_tmp, "rect", &json_rect))
 335         {
 336             HMI_ERROR("Parse Error!!");
 337             return WMError::FAIL;
 338         }
 339         HMI_DEBUG("> json_rect dump:%s", json_object_get_string(json_rect));
 340
 341         struct rect area_size;
 342         area_size.x = jh::getIntFromJson(json_rect, "x");
 343         area_size.y = jh::getIntFromJson(json_rect, "y");
 344         area_size.w = jh::getIntFromJson(json_rect, "w");
 345         area_size.h = jh::getIntFromJson(json_rect, "h");
 346
 347         this->area2size[area] = area_size;
 348     }
 349
 350     // Check
 351     for (const auto& itr : this->area2size)
 352     {
 353         HMI_DEBUG("area:%s x:%d y:%d w:%d h:%d",
 354                   itr.first.c_str(), itr.second.x, itr.second.y,
 355                   itr.second.w, itr.second.h);
 356     }
 357
 358     // Release json_object
 359     json_object_put(json_obj);
 360
 361     return WMError::SUCCESS;
 362 }
 363
 364 WMError LayerControl::layoutChange(const WMAction& action)
 365 {
 366     if (action.visible == TaskVisible::INVISIBLE)
 367     {
 368         // Visibility is not change -> no redraw is required
 369         return WMError::SUCCESS;
 370     }
 371     if(action.client == nullptr)
 372     {
 373         HMI_SEQ_ERROR(action.req_num, "client may vanish");
 374         return WMError::NOT_REGISTERED;
 375     }
 376     unsigned layer = action.client->layerID();
 377
 378     // Layout Manager
 379     // WMError ret = this->setLayerSize(layer, action.area);
 380     auto rect = this->getAreaSize(action.area);
 381     HMI_DEBUG("Set layout %d, %d, %d, %d",rect.x, rect.y, rect.w, rect.h);
 382     ilm_layerSetSourceRectangle(layer, 0, 0, rect.w, rect.h);
 383     ilm_commitChanges();
 384     ilm_layerSetDestinationRectangle(layer, rect.x, rect.y, rect.w, rect.h);
 385     ilm_commitChanges();
 386     for(auto &wm_layer: this->wm_layers)
 387     {
 388         if(wm_layer->hasLayerID(layer))
 389         {
 390             LayerState ls = wm_layer->getLayerState();
 391             ls.setArea(action.client->appID(), action.area);
 392         }
 393     }
 394
 395     return WMError::SUCCESS;
 396 }
 397
 398 WMError LayerControl::visibilityChange(const WMAction& action)
 399 {
 400     WMError ret = WMError::FAIL;
 401     if(action.client == nullptr)
 402     {
 403         HMI_SEQ_ERROR(action.req_num, "client may vanish");
 404         return WMError::NOT_REGISTERED;
 405     }
 406
 407     if (action.visible == TaskVisible::VISIBLE)
 408     {
 409         ret = this->makeVisible(action.client);
 410     }
 411     else if (action.visible == TaskVisible::INVISIBLE)
 412     {
 413         ret = this->makeInvisible(action.client);
 414     }
 415     return ret;
 416 }
 417
 418 void LayerControl::dispatchCreateEvent(ilmObjectType object, unsigned id, bool created)
 419 {
 420     if (ILM_SURFACE == object)
 421     {
 422         if (created)
 423         {
 424             ilmSurfaceProperties sp;
 425             ilmErrorTypes rc;
 426             rc = ilm_getPropertiesOfSurface(id, &sp);
 427             if(rc != ILM_SUCCESS)
 428                 return;
 429             this->cb.surfaceCreated(sp.creatorPid, id);
 430             ilm_surfaceAddNotification(id, surfaceCallback_static);
 431             ilm_surfaceSetVisibility(id, ILM_TRUE);
 432         }
 433         else
 434         {
 435             this->cb.surfaceDestroyed(id);
 436         }
 437     }
 438     if (ILM_LAYER == object)
 439     {
 440         if(created)
 441         {
 442             ilm_layerAddNotification(id, layerCallback_static);
 443             // this->cb->layerCreated(id);
 444         }
 445         else
 446         {
 447             // this->cb->layerDestroyed(id); // Means Application is dead.
 448         }
 449     }
 450 }
 451
 452 void LayerControl::dispatchPropertyChangeEvent(unsigned id,
 453         struct ilmSurfaceProperties* sprop,
 454         t_ilm_notification_mask mask)
 455 {
 456     pid_t pid = sprop->creatorPid;
 457     HMI_DEBUG("pid : %d", pid);
 458
 459     if (ILM_NOTIFICATION_VISIBILITY & mask)
 460     {
 461         //this->cb->surfaceVisibilityChanged(id, sprop->visibility);
 462     }
 463     if (ILM_NOTIFICATION_OPACITY & mask)
 464     {
 465     }
 466     if (ILM_NOTIFICATION_ORIENTATION & mask)
 467     {
 468     }
 469     if (ILM_NOTIFICATION_SOURCE_RECT & mask)
 470     {
 471         // this->cb->surfaceSourceRectChanged(id, )
 472     }
 473     if (ILM_NOTIFICATION_DEST_RECT & mask)
 474     {
 475         // this->cb->surfaceSourceRectChanged(id, )
 476     }
 477     if (ILM_NOTIFICATION_CONTENT_AVAILABLE & mask)
 478     {
 479     }
 480     if (ILM_NOTIFICATION_CONTENT_REMOVED & mask)
 481     {
 482         /* application being down */
 483         // m_appLayers.remove(pid);
 484     }
 485     if (ILM_NOTIFICATION_CONFIGURED & mask)
 486     {
 487         HMI_DEBUG("surface %d available", id);
 488         ilm_surfaceSetSourceRectangle(id, 0, 0, sprop->origSourceWidth, sprop->origSourceHeight);
 489         ilm_surfaceSetDestinationRectangle(id, 0, 0, sprop->origSourceWidth, sprop->origSourceHeight);
 490         /* qDebug("ILM_NOTIFICATION_CONFIGURED");
 491         qDebug("  surfaceProperties %d", surface);
 492         qDebug("    surfaceProperties.origSourceWidth: %d", surfaceProperties->origSourceWidth);
 493         qDebug("    surfaceProperties.origSourceHeight: %d", surfaceProperties->origSourceHeight);
 494
 495         if (surface == WINDOWMANAGER_HOMESCREEN_MAIN_SURFACE_ID) {
 496             addSurfaceToLayer(surface, WINDOWMANAGER_LAYER_HOMESCREEN);
 497             configureHomeScreenMainSurface(surface, surfaceProperties->origSourceWidth, surfaceProperties->origSourceHeight);
 498         } else {
 499             ilmErrorTypes result;
 500             t_ilm_layer layer = addSurfaceToAppLayer(pid, surface);
 501
 502             if (layer != 0) {
 503                 configureAppSurface(surface,
 504                                     surfaceProperties->origSourceWidth,
 505                                     surfaceProperties->origSourceHeight);
 506
 507                 result = ilm_layerAddSurface(layer, surface);
 508                 if (result != ILM_SUCCESS) {
 509                     qDebug("ilm_layerAddSurface(%d,%d) failed.", layer, surface);
 510                 }
 511                 ilm_commitChanges();
 512             }
 513         }
 514         updateScreen(); */
 515     }
 516 }
 517
 518 void LayerControl::dispatchPropertyChangeEvent(unsigned id,
 519         struct ilmLayerProperties* lprop,
 520         t_ilm_notification_mask mask)
 521 {
 522     if (ILM_NOTIFICATION_VISIBILITY & mask)
 523     {
 524         //this->cb->layerVisibilityChanged(id, sprop->visibility);
 525     }
 526     if (ILM_NOTIFICATION_OPACITY & mask)
 527     {
 528     }
 529     if (ILM_NOTIFICATION_ORIENTATION & mask)
 530     {
 531     }
 532     if (ILM_NOTIFICATION_SOURCE_RECT & mask)
 533     {
 534         // this->cb->surfaceSourceRectChanged(id, )
 535     }
 536     if (ILM_NOTIFICATION_DEST_RECT & mask)
 537     {
 538         // this->cb->surfaceSourceRectChanged(id, )
 539     }
 540     if (ILM_NOTIFICATION_CONTENT_AVAILABLE & mask)
 541     {
 542     }
 543     if (ILM_NOTIFICATION_CONTENT_REMOVED & mask)
 544     {
 545         /* application being down */
 546         // m_appLayers.remove(pid);
 547     }
 548     if (ILM_NOTIFICATION_CONFIGURED & mask)
 549     {
 550         /* qDebug("ILM_NOTIFICATION_CONFIGURED");
 551         qDebug("  surfaceProperties %d", surface);
 552         qDebug("    surfaceProperties.origSourceWidth: %d", surfaceProperties->origSourceWidth);
 553         qDebug("    surfaceProperties.origSourceHeight: %d", surfaceProperties->origSourceHeight);
 554
 555         if (surface == WINDOWMANAGER_HOMESCREEN_MAIN_SURFACE_ID) {
 556             addSurfaceToLayer(surface, WINDOWMANAGER_LAYER_HOMESCREEN);
 557             configureHomeScreenMainSurface(surface, surfaceProperties->origSourceWidth, surfaceProperties->origSourceHeight);
 558         } else {
 559             ilmErrorTypes result;
 560             t_ilm_layer layer = addSurfaceToAppLayer(pid, surface);
 561
 562             if (layer != 0) {
 563                 configureAppSurface(surface,
 564                                     surfaceProperties->origSourceWidth,
 565                                     surfaceProperties->origSourceHeight);
 566
 567                 result = ilm_layerAddSurface(layer, surface);
 568                 if (result != ILM_SUCCESS) {
 569                     qDebug("ilm_layerAddSurface(%d,%d) failed.", layer, surface);
 570                 }
 571                 ilm_commitChanges();
 572             }
 573         }
 574         updateScreen(); */
 575     }
 576 }
 577
 578 WMError LayerControl::makeVisible(const shared_ptr<WMClient> client)
 579 {
 580     WMError ret = WMError::SUCCESS;
 581     // Don't check here the client is not nullptr
 582     unsigned layer = client->layerID();
 583
 584     this->moveForeGround(client);
 585
 586     ilm_layerSetVisibility(layer, ILM_TRUE);
 587
 588     /* for(auto& wm_layer : this->wm_layers)
 589     {
 590         if(wm_layer->hasLayerID(layer))
 591         {
 592             LayerState ls = wm_layer->getLayerState();
 593             ls.addLayer(layer);;
 594         }
 595     } */
 596
 597     // Move foreground from back ground layer
 598     /* for(auto& wm_layer : this->wm_layers)
 599     {
 600         if(wm_layer->layerName() == "BackGroundLayer")
 601         {
 602             if(wm_layer->hasRole(client->role()))
 603             {
 604                 LayerState ls = wm_layer->getLayerState();
 605                 ls.removeLayer(layer);
 606             }
 607             break;
 608         }
 609     } */
 610
 611     return ret;
 612 }
 613
 614 WMError LayerControl::makeInvisible(const shared_ptr<WMClient> client)
 615 {
 616     WMError ret = WMError::SUCCESS;
 617     unsigned layer = client->layerID(); // Don't check here the client is not nullptr
 618
 619     bool mv_ok = this->moveBackGround(client);
 620
 621     if(!mv_ok)
 622     {
 623         HMI_INFO("make invisible client %s", client->appID().c_str());
 624         ilm_layerSetVisibility(layer, ILM_FALSE);
 625     }
 626
 627     //ilm_layerSetDestinationRectangle(layer, 0, 0, 0, 0);
 628
 629     /* for(auto& wm_layer : this->wm_layers)
 630     {
 631         if(wm_layer->hasLayerID(layer))
 632         {
 633             LayerState ls = wm_layer->getLayerState();
 634             ls.removeLayer(layer);;
 635         }
 636     } */
 637
 638
 639
 640     return ret;
 641 }
 642
 643 bool LayerControl::moveBackGround(const shared_ptr<WMClient> client)
 644 {
 645     bool ret = false;
 646
 647     // Move background from foreground layer
 648     auto bg = this->getWMLayer(BACK_GROUND_LAYER);
 649     if(bg != nullptr)
 650     {
 651         HMI_DEBUG("client %s role %s", client->appID().c_str(), client->role().c_str());
 652         unsigned layer = client->layerID();
 653         if(bg->hasRole(client->role()))
 654         {
 655             HMI_INFO("%s go to background", client->appID().c_str());
 656             bg->addLayerToState(layer);
 657             auto wm_layer = this->getWMLayer(layer);
 658             wm_layer->removeLayerFromState(layer);
 659             /* TODO: manipulate state directly
 660             LayerState bg_ls = bg->getLayerState();
 661             bg_ls.addLayer(layer);
 662             LayerState ls = wm_layer->getLayerState();
 663             ls.removeLayer(layer); */
 664             bg->dump();
 665             wm_layer->dump();
 666             ret = true;
 667         }
 668     }
 669     return ret;
 670 }
 671
 672 bool LayerControl::moveForeGround(const shared_ptr<WMClient> client)
 673 {
 674     bool ret = false;
 675
 676     // Move foreground from foreground layer
 677     auto bg = this->getWMLayer(BACK_GROUND_LAYER);
 678     if(bg != nullptr)
 679     {
 680         if(bg->hasRole(client->role()))
 681         {
 682             unsigned layer = client->layerID();
 683             HMI_INFO("%s go to foreground", client->appID().c_str());
 684             bg->removeLayerFromState(layer);
 685             auto wm_layer = this->getWMLayer(layer);
 686             wm_layer->addLayerToState(layer);
 687             /* TODO: manipulate state directly
 688             LayerState bg_ls = bg->getLayerState();
 689             bg_ls.removeLayer(layer);
 690             LayerState ls = wm_layer->getLayerState();
 691             ls.addLayer(layer); */
 692             bg->dump();
 693             wm_layer->dump();
 694             ret = true;
 695         }
 696     }
 697     return ret;
 698 }
 699
 700 } // namespace wm