src/app.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
  17 #include "app.hpp"
  18 #include "json_helper.hpp"
  19 #include "layers.hpp"
  20 #include "layout.hpp"
  21 #include "util.hpp"
  22 #include "wayland_ivi_wm.hpp"
  23
  24 #include <cstdio>
  25 #include <memory>
  26
  27 #include <cassert>
  28
  29 #include <json-c/json.h>
  30
  31 #include <algorithm>
  32 #include <csignal>
  33 #include <fstream>
  34 #include <json.hpp>
  35 #include <regex>
  36 #include <thread>
  37
  38 #include "wm_client.hpp"
  39 #include "applist.hpp"
  40
  41 extern "C"
  42 {
  43 #include <systemd/sd-event.h>
  44 }
  45
  46 namespace wm
  47 {
  48
  49 const unsigned kTimeOut = 10000000UL; /* 10s */
  50
  51 /* DrawingArea name used by "{layout}.{area}" */
  52 const char kNameLayoutNormal[] = "normal";
  53 const char kNameLayoutSplit[] = "split";
  54 const char kNameAreaFull[] = "full";
  55 const char kNameAreaMain[] = "main";
  56 const char kNameAreaSub[] = "sub";
  57
  58 /* Key for json obejct */
  59 const char kKeyDrawingName[] = "drawing_name";
  60 const char kKeyDrawingArea[] = "drawing_area";
  61 const char kKeyDrawingRect[] = "drawing_rect";
  62 const char kKeyX[] = "x";
  63 const char kKeyY[] = "y";
  64 const char kKeyWidth[] = "width";
  65 const char kKeyHeight[] = "height";
  66 const char kKeyWidthPixel[] = "width_pixel";
  67 const char kKeyHeightPixel[] = "height_pixel";
  68 const char kKeyWidthMm[] = "width_mm";
  69 const char kKeyHeightMm[] = "height_mm";
  70
  71 static sd_event_source *g_timer_ev_src = nullptr;
  72
  73 static AppList g_app_list;
  74
  75 namespace
  76 {
  77
  78 using nlohmann::json;
  79
  80 result<json> file_to_json(char const *filename)
  81 {
  82     json j;
  83     std::ifstream i(filename);
  84     if (i.fail())
  85     {
  86         HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  87         j = default_layers_json;
  88     }
  89     else
  90     {
  91         i >> j;
  92     }
  93
  94     return Ok(j);
  95 }
  96
  97 struct result<layer_map> load_layer_map(char const *filename)
  98 {
  99     HMI_DEBUG("wm", "loading IDs from %s", filename);
 100
 101     auto j = file_to_json(filename);
 102     if (j.is_err())
 103     {
 104         return Err<layer_map>(j.unwrap_err());
 105     }
 106     json jids = j.unwrap();
 107
 108     return to_layer_map(jids);
 109 }
 110
 111 static int
 112 processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata)
 113 {
 114     HMI_NOTICE("wm", "Time out occurs because the client replys endDraw slow, so revert the request");
 115     reinterpret_cast<wm::App *>(userdata)->timerHandler();
 116     return 0;
 117 }
 118
 119 } // namespace
 120
 121 void App::timerHandler()
 122 {
 123     unsigned req_num = g_app_list.currentRequestNumber();
 124     HMI_SEQ_DEBUG(req_num, "Timer expired remove Request");
 125     g_app_list.reqDump();
 126     g_app_list.removeRequest(req_num);
 127     this->processNextRequest();
 128 }
 129
 130 void App::removeClient(const std::string &appid)
 131 {
 132     HMI_DEBUG("wm", "Remove clinet %s from list", appid.c_str());
 133     g_app_list.removeClient(appid);
 134 }
 135
 136 void App::exeptionProcessForTransition()
 137 {
 138     unsigned req_num = g_app_list.currentRequestNumber();
 139     HMI_SEQ_NOTICE(req_num, "Process exeption handling for request. Remove current request %d", req_num);
 140     g_app_list.removeRequest(req_num);
 141     HMI_SEQ_NOTICE(g_app_list.currentRequestNumber(), "Process next request if exists");
 142     this->processNextRequest();
 143 }
 144
 145 bool App::subscribeEventForApp(const std::string &appid, afb_req req, const std::string &evname)
 146 {
 147     if(!g_app_list.contains(appid)){
 148         HMI_DEBUG("wm", "Client %s is not registered", appid.c_str());
 149         return false;
 150     }
 151     auto client = g_app_list.lookUpClient(appid);
 152     return client->subscribe(req, evname);
 153 }
 154
 155 /**
 156  * App Impl
 157  */
 158 App::App(wl::display *d)
 159     : chooks{this},
 160       display{d},
 161       controller{},
 162       outputs(),
 163       config(),
 164       layers(),
 165       id_alloc{},
 166       pending_events(false),
 167       policy{}
 168 {
 169     try
 170     {
 171         {
 172             auto l = load_layer_map(
 173                 this->config.get_string("layers.json").value().c_str());
 174             if (l.is_ok())
 175             {
 176                 this->layers = l.unwrap();
 177             }
 178             else
 179             {
 180                 HMI_ERROR("wm", "%s", l.err().value());
 181             }
 182         }
 183     }
 184     catch (std::exception &e)
 185     {
 186         HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 187     }
 188 }
 189
 190 int App::init()
 191 {
 192     if (!this->display->ok())
 193     {
 194         return -1;
 195     }
 196
 197     if (this->layers.mapping.empty())
 198     {
 199         HMI_ERROR("wm", "No surface -> layer mapping loaded");
 200         return -1;
 201     }
 202
 203     // Make afb event
 204     for (int i = Event_Val_Min; i <= Event_Val_Max; i++)
 205     {
 206         map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 207     }
 208
 209     this->display->add_global_handler(
 210         "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 211             this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 212         });
 213
 214     this->display->add_global_handler(
 215         "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 216             this->controller =
 217                 std::make_unique<struct compositor::controller>(r, name, v);
 218
 219             // Init controller hooks
 220             this->controller->chooks = &this->chooks;
 221
 222             // This protocol needs the output, so lets just add our mapping here...
 223             this->controller->add_proxy_to_id_mapping(
 224                 this->outputs.back()->proxy.get(),
 225                 wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 226                     this->outputs.back()->proxy.get())));
 227
 228             // Create screen
 229             this->controller->create_screen(this->outputs.back()->proxy.get());
 230
 231             // Set display to controller
 232             this->controller->display = this->display;
 233         });
 234
 235     // First level objects
 236     this->display->roundtrip();
 237     // Second level objects
 238     this->display->roundtrip();
 239     // Third level objects
 240     this->display->roundtrip();
 241
 242     return init_layers();
 243 }
 244
 245 int App::dispatch_pending_events()
 246 {
 247     if (this->pop_pending_events())
 248     {
 249         this->display->dispatch_pending();
 250         return 0;
 251     }
 252     return -1;
 253 }
 254
 255 bool App::pop_pending_events()
 256 {
 257     bool x{true};
 258     return this->pending_events.compare_exchange_strong(
 259         x, false, std::memory_order_consume);
 260 }
 261
 262 void App::set_pending_events()
 263 {
 264     this->pending_events.store(true, std::memory_order_release);
 265 }
 266
 267 optional<int> App::lookup_id(char const *name)
 268 {
 269     return this->id_alloc.lookup(std::string(name));
 270 }
 271 optional<std::string> App::lookup_name(int id)
 272 {
 273     return this->id_alloc.lookup(id);
 274 }
 275
 276 /**
 277  * init_layers()
 278  */
 279 int App::init_layers()
 280 {
 281     if (!this->controller)
 282     {
 283         HMI_ERROR("wm", "ivi_controller global not available");
 284         return -1;
 285     }
 286
 287     if (this->outputs.empty())
 288     {
 289         HMI_ERROR("wm", "no output was set up!");
 290         return -1;
 291     }
 292
 293     auto &c = this->controller;
 294
 295     auto &o = this->outputs.front();
 296     auto &s = c->screens.begin()->second;
 297     auto &layers = c->layers;
 298
 299     // Write output dimensions to ivi controller...
 300     c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 301     c->physical_size = compositor::size{uint32_t(o->physical_width),
 302                                         uint32_t(o->physical_height)};
 303
 304     // Clear scene
 305     layers.clear();
 306
 307     // Clear screen
 308     s->clear();
 309
 310     // Quick and dirty setup of layers
 311     for (auto const &i : this->layers.mapping)
 312     {
 313         c->layer_create(i.second.layer_id, o->width, o->height);
 314         auto &l = layers[i.second.layer_id];
 315         l->set_destination_rectangle(0, 0, o->width, o->height);
 316         l->set_visibility(1);
 317         HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 318                   i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 319     }
 320
 321     // Add layers to screen
 322     s->set_render_order(this->layers.layers);
 323
 324     this->layout_commit();
 325
 326     this->layers.setupArea(o->width, o->height);
 327
 328     return 0;
 329 }
 330
 331 void App::surface_set_layout(int surface_id, const std::string& area)
 332 {
 333     if (!this->controller->surface_exists(surface_id))
 334     {
 335         HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 336         return;
 337     }
 338
 339     auto o_layer_id = this->layers.get_layer_id(surface_id);
 340
 341     if (!o_layer_id)
 342     {
 343         HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 344         return;
 345     }
 346
 347     uint32_t layer_id = *o_layer_id;
 348
 349     auto const &layer = this->layers.get_layer(layer_id);
 350     auto rect = this->layers.getAreaSize(area);
 351     HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "%s : x:%d y:%d w:%d h:%d", area.c_str(),
 352                     rect.x, rect.y, rect.w, rect.h);
 353     auto &s = this->controller->surfaces[surface_id];
 354
 355     int x = rect.x;
 356     int y = rect.y;
 357     int w = rect.w;
 358     int h = rect.h;
 359
 360     // less-than-0 values refer to MAX + 1 - $VALUE
 361     // e.g. MAX is either screen width or height
 362     if (w < 0)
 363     {
 364         w = this->controller->output_size.w + 1 + w;
 365     }
 366     if (h < 0)
 367     {
 368         h = this->controller->output_size.h + 1 + h;
 369     }
 370
 371     HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 372               layer_id);
 373
 374     // set destination to the display rectangle
 375     s->set_destination_rectangle(x, y, w, h);
 376
 377     // update area information
 378     this->area_info[surface_id].x = x;
 379     this->area_info[surface_id].y = y;
 380     this->area_info[surface_id].w = w;
 381     this->area_info[surface_id].h = h;
 382
 383     HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 384               surface_id, layer_id, x, y, w, h);
 385 }
 386
 387 void App::layout_commit()
 388 {
 389     this->controller->commit_changes();
 390     this->display->flush();
 391 }
 392
 393 void App::setTimer()
 394 {
 395     HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "Timer set activate");
 396     if (g_timer_ev_src == nullptr)
 397     {
 398         // firsttime set into sd_event
 399         int ret = sd_event_add_time(afb_daemon_get_event_loop(), &g_timer_ev_src,
 400                                     CLOCK_REALTIME, time(NULL) * (1000000UL) + kTimeOut, 1, processTimerHandler, this);
 401         if (ret < 0)
 402         {
 403             HMI_ERROR("wm", "Could't set timer");
 404         }
 405     }
 406     else
 407     {
 408         // update timer limitation after second time
 409         sd_event_source_set_time(g_timer_ev_src, time(NULL) * (1000000UL) + kTimeOut);
 410         sd_event_source_set_enabled(g_timer_ev_src, SD_EVENT_ONESHOT);
 411     }
 412 }
 413
 414 void App::stopTimer()
 415 {
 416     unsigned req_num = g_app_list.currentRequestNumber();
 417     HMI_SEQ_DEBUG(req_num, "Timer stop");
 418     int rc = sd_event_source_set_enabled(g_timer_ev_src, SD_EVENT_OFF);
 419     if (rc < 0)
 420     {
 421         HMI_SEQ_ERROR(req_num, "Timer stop failed");
 422     }
 423 }
 424
 425 WMError App::lm_release(const struct WMAction &action)
 426 {
 427     //auto const &surface_id = this->lookup_id(drawing_name);
 428     WMError ret = WMError::LAYOUT_CHANGE_FAIL;
 429     unsigned req_num = g_app_list.currentRequestNumber();
 430     auto const &surface_id = this->lookup_id(action.role.c_str());
 431     if (!surface_id)
 432     {
 433         HMI_SEQ_ERROR(req_num, "Surface does not exist");
 434         return ret;
 435     }
 436
 437     if (*surface_id == this->layers.main_surface)
 438     {
 439         HMI_SEQ_ERROR(req_num, "Cannot deactivate main_surface");
 440         return ret;
 441     }
 442
 443     auto o_state = *this->layers.get_layout_state(*surface_id);
 444
 445     if (o_state == nullptr)
 446     {
 447         HMI_SEQ_ERROR(req_num, "Could not find layer for surface");
 448         return ret;
 449     }
 450
 451     struct LayoutState &state = *o_state;
 452
 453     if (state.main == -1)
 454     {
 455         HMI_SEQ_ERROR(req_num, "No surface active");
 456         return ret;
 457     }
 458
 459     // Check against main_surface, main_surface_name is the configuration item.
 460     if (*surface_id == this->layers.main_surface)
 461     {
 462         HMI_SEQ_DEBUG(req_num, "Refusing to deactivate main_surface %d", *surface_id);
 463         //reply(nullptr);
 464         return WMError::SUCCESS;
 465     }
 466     if ((state.main == *surface_id) && (state.sub == *surface_id))
 467     {
 468         HMI_SEQ_ERROR(req_num, "Surface is not active");
 469         return ret;
 470     }
 471
 472     if (state.main == *surface_id)
 473     {
 474         if (state.sub != -1)
 475         {
 476             this->try_layout(
 477                 state, LayoutState{state.sub, -1}, [&](LayoutState const &nl) {
 478                     std::string sub = std::move(*this->lookup_name(state.sub));
 479
 480                     this->deactivate(*surface_id);
 481                     this->surface_set_layout(state.sub);
 482                     state = nl;
 483
 484                     this->layout_commit();
 485                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 486                     compositor::rect area_rect = this->area_info[state.sub];
 487                     this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 488                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 489                     this->enqueue_flushdraw(state.sub);
 490                 });
 491         }
 492         else
 493         {
 494             this->try_layout(state, LayoutState{-1, -1}, [&](LayoutState const &nl) {
 495                 this->deactivate(*surface_id);
 496                 state = nl;
 497                 this->layout_commit();
 498             });
 499         }
 500     }
 501     else if (state.sub == *surface_id)
 502     {
 503         this->try_layout(
 504             state, LayoutState{state.main, -1}, [&](LayoutState const &nl) {
 505                 std::string main = std::move(*this->lookup_name(state.main));
 506
 507                 this->deactivate(*surface_id);
 508                 this->surface_set_layout(state.main);
 509                 state = nl;
 510
 511                 this->layout_commit();
 512                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 513                 compositor::rect area_rect = this->area_info[state.main];
 514                 this->emit_syncdraw(main.c_str(), str_area.c_str(),
 515                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 516                 this->enqueue_flushdraw(state.main);
 517             });
 518     }
 519     return WMError::SUCCESS;
 520 }
 521
 522 WMError App::doTransition(unsigned req_num)
 523 {
 524     HMI_SEQ_DEBUG(req_num, "check policy");
 525     WMError ret = this->checkPolicy(req_num);
 526     if (ret != WMError::SUCCESS)
 527     {
 528         return ret;
 529     }
 530     HMI_SEQ_DEBUG(req_num, "Start transition.");
 531     ret = this->startTransition(req_num);
 532     return ret;
 533 }
 534
 535 WMError App::checkPolicy(unsigned req_num)
 536 {
 537     /*
 538     * Check Policy
 539     */
 540     // get current trigger
 541     bool found = false;
 542     bool split = false;
 543     WMError ret = WMError::LAYOUT_CHANGE_FAIL;
 544     auto trigger = g_app_list.getRequest(req_num, &found);
 545     if (!found)
 546     {
 547         ret = WMError::NO_ENTRY;
 548         return ret;
 549     }
 550     std::string req_area = trigger.area;
 551
 552     // >>>> Compatible with current window manager until policy manager coming
 553     if (trigger.task == Task::TASK_ALLOCATE)
 554     {
 555         HMI_SEQ_DEBUG(req_num, "Check split or not");
 556         const char *msg = this->check_surface_exist(trigger.role.c_str());
 557
 558         if (msg)
 559         {
 560             HMI_SEQ_ERROR(req_num, msg);
 561             ret = WMError::LAYOUT_CHANGE_FAIL;
 562             return ret;
 563         }
 564
 565         auto const &surface_id = this->lookup_id(trigger.role.c_str());
 566         auto o_state = *this->layers.get_layout_state(*surface_id);
 567         struct LayoutState &state = *o_state;
 568
 569         unsigned curernt_sid = state.main;
 570         split = this->can_split(state, *surface_id);
 571
 572         if (split)
 573         {
 574             HMI_SEQ_DEBUG(req_num, "Split happens");
 575             // Get current visible role
 576             std::string add_role = this->lookup_name(state.main).value();
 577             // Set next area
 578             std::string add_area = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 579             // Change request area
 580             req_area = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 581             HMI_SEQ_NOTICE(req_num, "Change request area from %s to %s, because split is happen", trigger.area, req_area);
 582             // set another action
 583             std::string add_name = g_app_list.getAppID(curernt_sid, add_role, &found);
 584             if (!found)
 585             {
 586                 HMI_SEQ_ERROR(req_num, "Couldn't widhdraw with surfaceID : %s", curernt_sid);
 587                 ret = WMError::NOT_REGISTERED;
 588                 return ret;
 589             }
 590             HMI_SEQ_INFO(req_num, "Additional split app %s, role: %s, area: %s",
 591                          add_name.c_str(), add_role.c_str(), add_area.c_str());
 592             // Set split action
 593             bool end_draw_finished = false;
 594             WMAction split_action{
 595                 add_name,
 596                 add_role,
 597                 add_area,
 598                 TaskVisible::VISIBLE,
 599                 end_draw_finished};
 600             WMError ret = g_app_list.setAction(req_num, split_action);
 601             if (ret != WMError::SUCCESS)
 602             {
 603                 HMI_SEQ_ERROR(req_num, "Failed to set action");
 604                 return ret;
 605             }
 606             g_app_list.reqDump();
 607         }
 608     }
 609     else
 610     {
 611         HMI_SEQ_DEBUG(req_num, "split doesn't happen");
 612     }
 613
 614     // Set invisible task(Remove if policy manager finish)
 615     ret = this->setInvisibleTask(trigger.role, split);
 616     if(ret != WMError::SUCCESS)
 617     {
 618         HMI_SEQ_ERROR(req_num, "Failed to set invisible task: %s", errorDescription(ret));
 619         return ret;
 620     }
 621
 622     /*  get new status from Policy Manager */
 623     HMI_SEQ_NOTICE(req_num, "ATM, Policy manager does't exist, then set WMAction as is");
 624     if(trigger.role == "HomeScreen")
 625     {
 626         // TODO : Remove when Policy Manager completed
 627         HMI_SEQ_NOTICE(req_num, "Hack. This process will be removed. Change HomeScreen code!!");
 628         req_area = "fullscreen";
 629     }
 630     TaskVisible task_visible = (trigger.task == Task::TASK_ALLOCATE) ? TaskVisible::VISIBLE : TaskVisible::INVISIBLE;
 631
 632     ret = g_app_list.setAction(req_num, trigger.appid, trigger.role, req_area, task_visible);
 633     g_app_list.reqDump();
 634
 635     return ret;
 636 }
 637
 638 WMError App::startTransition(unsigned req_num)
 639 {
 640     bool sync_draw_happen = false;
 641     bool found = false;
 642     WMError ret = WMError::SUCCESS;
 643     auto actions = g_app_list.getActions(req_num, &found);
 644     if (!found)
 645     {
 646         ret = WMError::NO_ENTRY;
 647         HMI_SEQ_ERROR(req_num, "Window Manager bug :%s : Action is not set", errorDescription(ret));
 648         return ret;
 649     }
 650
 651     for (const auto &action : actions)
 652     {
 653         if (action.visible != TaskVisible::INVISIBLE)
 654         {
 655             sync_draw_happen = true;
 656             this->emit_syncdraw(y.role, y.area);
 657             /* TODO: emit event for app not subscriber
 658             if(g_app_list.contains(y.appid))
 659                 g_app_list.lookUpClient(y.appid)->emit_syncdraw(y.role, y.area); */
 660         }
 661     }
 662
 663     if (sync_draw_happen)
 664     {
 665         this->setTimer();
 666     }
 667     else
 668     {
 669         // deactivate only, no syncDraw
 670         // Make it deactivate here
 671         for (const auto &x : actions)
 672         {
 673             if (g_app_list.contains(z.appid))
 674             {
 675                 auto client = g_app_list.lookUpClient(x.appid);
 676                 this->deactivate(client->surfaceID(x.role));
 677             }
 678         }
 679         ret = NO_LAYOUT_CHANGE;
 680     }
 681     return ret;
 682 }
 683
 684 WMError App::setInvisibleTask(const std::string &role, bool split)
 685 {
 686     unsigned req_num = g_app_list.currentRequestNumber();
 687     HMI_SEQ_DEBUG(req_num, "set current visible app to invisible task");
 688     // This task is copied from original actiavete surface
 689     const char *drawing_name = role.c_str();
 690     auto const &surface_id = this->lookup_id(drawing_name);
 691     auto layer_id = this->layers.get_layer_id(*surface_id);
 692     auto o_state = *this->layers.get_layout_state(*surface_id);
 693     struct LayoutState &state = *o_state;
 694     std::string add_name, add_role;
 695     std::string add_area = "";
 696     int surface;
 697     TaskVisible task_visible = TaskVisible::INVISIBLE;
 698     bool end_draw_finished = true;
 699     bool found = false;
 700
 701     for (auto const &l : this->layers.mapping)
 702     {
 703         if (l.second.layer_id <= *layer_id)
 704         {
 705             continue;
 706         }
 707         HMI_DEBUG("wm", "debug: main %d , sub : %d", l.second.state.main, l.second.state.sub);
 708         if (l.second.state.main != -1)
 709         {
 710             //this->deactivate(l.second.state.main);
 711             surface = l.second.state.main;
 712             add_role = *this->id_alloc.lookup(surface);
 713             add_name = g_app_list.getAppID(surface, add_role, &found);
 714             if(!found){
 715                 return WMError::NOT_REGISTERED;
 716             }
 717             HMI_SEQ_INFO(req_num, "Invisible %s", add_name.c_str());
 718             WMAction act{add_name, add_role, add_area, task_visible, end_draw_finished};
 719             g_app_list.setAction(req_num, act);
 720             l.second.state.main = -1;
 721         }
 722
 723         if (l.second.state.sub != -1)
 724         {
 725             //this->deactivate(l.second.state.sub);
 726             surface = l.second.state.sub;
 727             add_role = *this->id_alloc.lookup(surface);
 728             add_name = g_app_list.getAppID(surface, add_role, &found);
 729             if (!found)
 730             {
 731                 return WMError::NOT_REGISTERED;
 732             }
 733             HMI_SEQ_INFO(req_num, "Invisible %s", add_name.c_str());
 734             WMAction act{add_name, add_role, add_area, task_visible, end_draw_finished};
 735             g_app_list.setAction(req_num, act);
 736             l.second.state.sub = -1;
 737         }
 738     }
 739
 740     // change current state here, but this is hack
 741     auto layer = this->layers.get_layer(*layer_id);
 742
 743     if (state.main == -1)
 744     {
 745         HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 746         //state = LayoutState{*surface_id};
 747         /* this->try_layout(
 748             state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 749                 HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 750                 //this->surface_set_layout(*surface_id);
 751                 state = nl;
 752
 753                 //compositor::rect area_rect = this->area_info[*surface_id];
 754             }); */
 755     }
 756     else
 757     {
 758         if (0 != strcmp(drawing_name, "HomeScreen"))
 759         {
 760             if (split)
 761             {
 762                 std::string main =
 763                     std::move(*this->id_alloc.lookup(state.main));
 764                 if (state.sub != *surface_id)
 765                 {
 766                     if (state.sub != -1)
 767                     {
 768                         //this->deactivate(state.sub);
 769                         WMAction deact_sub;
 770                         deact_sub.role = main;
 771                         deact_sub.area = add_area;
 772                         deact_sub.appid = g_app_list.getAppID(state.sub, main, &found);
 773                         if (!found)
 774                         {
 775                             HMI_SEQ_DEBUG(req_num, "sub surface doesn't exist");
 776                             return WMError::NOT_REGISTERED;
 777                         }
 778                         deact_sub.visible = task_visible;
 779                         deact_sub.end_draw_finished = end_draw_finished;
 780                         HMI_SEQ_DEBUG(req_num, "sub surface doesn't exist");
 781                         g_app_list.setAction(req_num, deact_sub);
 782                     }
 783                 }
 784                 //state = LayoutState{state.main, *surface_id};
 785             }
 786             else
 787             {
 788                 HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 789
 790                 //this->surface_set_layout(*surface_id);
 791                 if (state.main != *surface_id)
 792                 {
 793                     // this->deactivate(state.main);
 794                     WMAction deact_main;
 795                     deact_main.role = std::move(*this->id_alloc.lookup(state.main));
 796                     ;
 797                     deact_main.area = add_area;
 798                     deact_main.appid = g_app_list.getAppID(state.main, deact_main.role, &found);
 799                     if (!found)
 800                     {
 801                         HMI_SEQ_DEBUG(req_num, "sub surface ddoesn't exist");
 802                         return WMError::NOT_REGISTERED;
 803                     }
 804                     deact_main.visible = task_visible;
 805                     deact_main.end_draw_finished = end_draw_finished;
 806                     HMI_SEQ_DEBUG(req_num, "sub surface doesn't exist");
 807                     g_app_list.setAction(req_num, deact_main);
 808                 }
 809                 if (state.sub != -1)
 810                 {
 811                     if (state.sub != *surface_id)
 812                     {
 813                         //this->deactivate(state.sub);
 814                         WMAction deact_sub;
 815                         deact_sub.role = std::move(*this->id_alloc.lookup(state.sub));
 816                         ;
 817                         deact_sub.area = add_area;
 818                         deact_sub.appid = g_app_list.getAppID(state.sub, deact_sub.role, &found);
 819                         if (!found)
 820                         {
 821                             HMI_SEQ_DEBUG(req_num, "sub surface ddoesn't exist");
 822                             return WMError::NOT_REGISTERED;
 823                         }
 824                         deact_sub.visible = task_visible;
 825                         deact_sub.end_draw_finished = end_draw_finished;
 826                         HMI_SEQ_DEBUG(req_num, "sub surface doesn't exist");
 827                         g_app_list.setAction(req_num, deact_sub);
 828                     }
 829                 }
 830                 //state = LayoutState{*surface_id};
 831             }
 832         }
 833     }
 834     return WMError::SUCCESS;
 835 }
 836
 837 const char *App::check_surface_exist(const char *drawing_name)
 838 {
 839     auto const &surface_id = this->lookup_id(drawing_name);
 840     if (!surface_id)
 841     {
 842         //reply("Surface does not exist");
 843         return "Surface does not exist";
 844     }
 845
 846     if (!this->controller->surface_exists(*surface_id))
 847     {
 848         //reply("Surface does not exist in controller!");
 849         return "Surface does not exist in controller!";
 850     }
 851
 852     auto layer_id = this->layers.get_layer_id(*surface_id);
 853
 854     if (!layer_id)
 855     {
 856         //reply("Surface is not on any layer!");
 857         return "Surface is not on any layer!";
 858     }
 859
 860     auto o_state = *this->layers.get_layout_state(*surface_id);
 861
 862     if (o_state == nullptr)
 863     {
 864         //reply("Could not find layer for surface");
 865         return "Could not find layer for surface";
 866     }
 867
 868     HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 869     return nullptr;
 870     //reply(nullptr);
 871 }
 872
 873 WMError App::setRequest(const std::string& appid, const std::string &role, const std::string &area,
 874                             Task task, unsigned* req_num)
 875 {
 876     if (!g_app_list.contains(appid))
 877     {
 878         return WMError::NOT_REGISTERED;
 879     }
 880
 881     auto client = g_app_list.lookUpClient(appid);
 882
 883     /*
 884    * Queueing Phase
 885    */
 886     unsigned current = g_app_list.currentRequestNumber();
 887     unsigned requested_num = g_app_list.getRequestNumber(appid);
 888     if (requested_num != 0)
 889     {
 890         HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", appid.c_str(), role.c_str(), area.c_str());
 891         return REQ_REJECTED;
 892     }
 893
 894     WMRequest req = WMRequest(appid, role, area, task);
 895     unsigned new_req = g_app_list.addAllocateRequest(req);
 896     *req_num = new_req;
 897     g_app_list.reqDump();
 898
 899     HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", appid.c_str(), role.c_str(), area.c_str());
 900
 901     return WMError::SUCCESS;
 902 }
 903
 904 void App::api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply)
 905 {
 906     ST();
 907
 908     std::string id = appid;
 909     std::string role = drawing_name;
 910     std::string area = drawing_area;
 911     Task task = Task::TASK_ALLOCATE;
 912     unsigned req_num = 0;
 913     WMError ret = WMError::UNKNOWN;
 914
 915     ret = this->setRequest(id, role, area, task, &req_num);
 916
 917     if(ret != WMError::SUCCESS)
 918     {
 919         HMI_ERROR("wm", errorDescription(ret));
 920         reply("Failed to set request");
 921         return;
 922     }
 923
 924     reply(nullptr);
 925     if (req_num != g_app_list.currentRequestNumber())
 926     {
 927         // Add request, then invoked after the previous task is finished
 928         HMI_SEQ_DEBUG(req_num, "request is accepted");
 929         return;
 930     }
 931
 932     /*
 933     * Do allocate tasks
 934     */
 935     ret = this->doTransition(req_num);
 936
 937     if (ret != WMError::SUCCESS)
 938     {
 939         //this->emit_error()
 940         HMI_SEQ_ERROR(req_num, errorDescription(ret));
 941         g_app_list.removeRequest(req_num);
 942         g_app_list.next();
 943         g_app_list.reqDump();
 944     }
 945 }
 946
 947 void App::api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply)
 948 {
 949     ST();
 950
 951     /*
 952    * Check Phase
 953    */
 954     std::string id = appid;
 955     std::string role = drawing_name;
 956     std::string area = ""; //drawing_area;
 957
 958     if (!g_app_list.contains(id))
 959     {
 960         reply("app doesn't request 'requestSurface' yet");
 961         return;
 962     }
 963     auto client = g_app_list.lookUpClient(id);
 964
 965     /*
 966    * Queueing Phase
 967    */
 968     unsigned current = g_app_list.currentRequestNumber();
 969     unsigned requested_num = g_app_list.getRequestNumber(id);
 970     if (requested_num != 0)
 971     {
 972         HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", id.c_str(), role.c_str(), area.c_str());
 973         reply("already requested");
 974         return;
 975     }
 976
 977     WMRequest req = WMRequest(id, role, area, Task::TASK_RELEASE);
 978     unsigned new_req = g_app_list.addAllocateRequest(req);
 979     g_app_list.reqDump();
 980
 981     HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", id.c_str(), role.c_str(), area.c_str());
 982
 983     reply(nullptr);
 984     if (new_req != current)
 985     {
 986         // Add request, then invoked after the previous task is finished
 987         HMI_SEQ_DEBUG(new_req, "request is accepted");
 988         return;
 989     }
 990
 991     /*
 992     * Do allocate tasks
 993     */
 994     WMError ret = this->doTransition(new_req);
 995
 996     if (ret != WMError::SUCCESS)
 997     {
 998         HMI_SEQ_ERROR(new_req, errorDescription(ret));
 999         g_app_list.removeRequest(new_req);
1000         g_app_list.next();
1001         //this->emit_error()
1002     }
1003 }
1004
1005 void App::enqueue_flushdraw(int surface_id)
1006 {
1007     this->check_flushdraw(surface_id);
1008     HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
1009     this->pending_end_draw.push_back(surface_id);
1010 }
1011
1012 void App::check_flushdraw(int surface_id)
1013 {
1014     auto i = std::find(std::begin(this->pending_end_draw),
1015                        std::end(this->pending_end_draw), surface_id);
1016     if (i != std::end(this->pending_end_draw))
1017     {
1018         auto n = this->lookup_name(surface_id);
1019         HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
1020                   n ? n->c_str() : "unknown-name", surface_id);
1021         std::swap(this->pending_end_draw[std::distance(
1022                       std::begin(this->pending_end_draw), i)],
1023                   this->pending_end_draw.back());
1024         this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
1025     }
1026 }
1027
1028 WMError App::doEndDraw(unsigned req_num)
1029 {
1030     // get actions
1031     bool found;
1032     auto actions = g_app_list.getActions(req_num, &found);
1033     WMError ret = WMError::SUCCESS;
1034     if (!found)
1035     {
1036         ret = WMError::NO_ENTRY;
1037         return ret;
1038     }
1039
1040     HMI_SEQ_INFO(req_num, "do endDraw");
1041
1042     // layout change and make it visible
1043     for (const auto &act : actions)
1044     {
1045         // layout change
1046         if(!g_app_list.contains(act.appid)){
1047             ret = WMError::NOT_REGISTERED;
1048         }
1049         ret = this->layoutChange(act);
1050         if(ret != WMError::SUCCESS)
1051         {
1052             HMI_SEQ_WARNING(req_num, "Failed to manipulate surfaces while state change : %s", errorDescription(ret));
1053             return ret;
1054         }
1055         ret = this->visibilityChange(act);
1056         if (ret != WMError::SUCCESS)
1057         {
1058             HMI_SEQ_WARNING(req_num, "Failed to manipulate surfaces while state change : %s", errorDescription(ret));
1059             return ret;
1060         }
1061         HMI_SEQ_DEBUG(req_num, "visible %s", act.role.c_str());
1062         //this->lm_enddraw(act.role.c_str());
1063     }
1064
1065     // Change current state
1066     this->changeCurrentState(req_num);
1067
1068     HMI_SEQ_INFO(req_num, "emit flushDraw");
1069
1070     for(const auto &act_flush : actions)
1071     {
1072         if(act_flush.visible != TaskVisible::INVISIBLE)
1073         {
1074             this->emit_flushdraw(act_flush.role.c_str());
1075         }
1076     }
1077
1078     return ret;
1079 }
1080
1081 WMError App::setSurfaceSize(unsigned surface, const std::string &area)
1082 {
1083     this->surface_set_layout(surface, area);
1084
1085     return WMError::SUCCESS;
1086 }
1087
1088 WMError App::layoutChange(const WMAction &action)
1089 {
1090     if (action.visible == TaskVisible::INVISIBLE)
1091     {
1092         // Visibility is not change -> no redraw is required
1093         return WMError::SUCCESS;
1094     }
1095     auto client = g_app_list.lookUpClient(action.appid);
1096     unsigned surface = client->surfaceID(action.role);
1097     if (surface == 0)
1098     {
1099         HMI_SEQ_ERROR(g_app_list.currentRequestNumber(),
1100                       "client doesn't have surface with role(%s)", action.role.c_str());
1101         return WMError::NOT_REGISTERED;
1102     }
1103     // Layout Manager
1104     WMError ret = this->setSurfaceSize(surface, action.area);
1105     return ret;
1106 }
1107
1108 WMError App::visibilityChange(const WMAction &action)
1109 {
1110     HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "Change visibility");
1111     if(!g_app_list.contains(action.appid)){
1112         return WMError::NOT_REGISTERED;
1113     }
1114     auto client = g_app_list.lookUpClient(action.appid);
1115     unsigned surface = client->surfaceID(action.role);
1116     if(surface == 0)
1117     {
1118         HMI_SEQ_ERROR(g_app_list.currentRequestNumber(),
1119                       "client doesn't have surface with role(%s)", action.role.c_str());
1120         return WMError::NOT_REGISTERED;
1121     }
1122
1123     if (action.visible != TaskVisible::INVISIBLE)
1124     {
1125         this->activate(surface); // Layout Manager task
1126     }
1127     else
1128     {
1129         this->deactivate(surface); // Layout Manager task
1130     }
1131     return WMError::SUCCESS;
1132 }
1133
1134 WMError App::changeCurrentState(unsigned req_num)
1135 {
1136     HMI_SEQ_DEBUG(req_num, "Change current layout state");
1137     bool trigger_found = false, action_found = false;
1138     auto trigger = g_app_list.getRequest(req_num, &trigger_found);
1139     auto actions = g_app_list.getActions(req_num, &action_found);
1140     if (!trigger_found || !action_found)
1141     {
1142         HMI_SEQ_ERROR(req_num, "Action not found");
1143         return WMError::LAYOUT_CHANGE_FAIL;
1144     }
1145
1146     // Layout state reset
1147     struct LayoutState reset_state{-1, -1};
1148     HMI_SEQ_DEBUG(req_num,"Reset layout state");
1149     for (const auto &action : actions)
1150     {
1151         if(!g_app_list.contains(action.appid)){
1152             return WMError::NOT_REGISTERED;
1153         }
1154         auto client = g_app_list.lookUpClient(action.appid);
1155         auto pCurState = *this->layers.get_layout_state((int)client->surfaceID(action.role));
1156         if(pCurState == nullptr)
1157         {
1158             HMI_SEQ_ERROR(req_num, "Counldn't find current status");
1159             continue;
1160         }
1161         pCurState->main = reset_state.main;
1162         pCurState->sub = reset_state.sub;
1163     }
1164
1165     HMI_SEQ_DEBUG(req_num, "Change state");
1166     for (const auto &action : actions)
1167     {
1168         auto client = g_app_list.lookUpClient(action.appid);
1169         auto pLayerCurState = *this->layers.get_layout_state((int)client->surfaceID(action.role));
1170         if (pLayerCurState == nullptr)
1171         {
1172             HMI_SEQ_ERROR(req_num, "Counldn't find current status");
1173             continue;
1174         }
1175         int surface = -1;
1176
1177         if (action.visible != TaskVisible::INVISIBLE)
1178         {
1179             surface = (int)client->surfaceID(action.role);
1180             HMI_SEQ_INFO(req_num, "Change %s surface : %d, state visible area : %s",
1181                             action.role.c_str(), surface, action.area.c_str());
1182             // visible == true -> layout changes
1183             if(action.area == "normal.full" || action.area == "split.main")
1184             {
1185                 pLayerCurState->main = surface;
1186             }
1187             else if (action.area == "split.sub")
1188             {
1189                 pLayerCurState->sub = surface;
1190             }
1191             else
1192             {
1193                 // normalfull
1194                 pLayerCurState->main = surface;
1195             }
1196         }
1197     }
1198
1199     return WMError::SUCCESS;
1200 }
1201
1202 void App::api_enddraw(char const *appid, char const *drawing_name)
1203 {
1204     std::string id = appid;
1205     std::string role = drawing_name;
1206     unsigned current_req = g_app_list.currentRequestNumber();
1207     bool result = g_app_list.setEndDrawFinished(current_req, id, role);
1208
1209     if (!result)
1210     {
1211         HMI_ERROR("wm", "%s is not in transition state", id.c_str());
1212         return;
1213     }
1214
1215     if (g_app_list.endDrawFullfilled(current_req))
1216     {
1217         // do task for endDraw
1218         this->stopTimer();
1219         WMError ret = this->doEndDraw(current_req);
1220
1221         if(ret != WMError::SUCCESS)
1222         {
1223             //this->emit_error();
1224         }
1225         HMI_SEQ_INFO(current_req, "Finish request status: %s", errorDescription(ret));
1226
1227         g_app_list.removeRequest(current_req);
1228
1229         this->processNextRequest();
1230     }
1231     else
1232     {
1233         HMI_SEQ_INFO(current_req, "Wait other App call endDraw");
1234         return;
1235     }
1236 }
1237
1238 void App::processNextRequest()
1239 {
1240     g_app_list.next();
1241     g_app_list.reqDump();
1242     unsigned req_num = g_app_list.currentRequestNumber();
1243     if (g_app_list.haveRequest())
1244     {
1245         HMI_SEQ_DEBUG(req_num, "Process next request");
1246         WMError rc = doTransition(req_num);
1247         if (rc != WMError::SUCCESS)
1248         {
1249             HMI_SEQ_ERROR(req_num, errorDescription(rc));
1250         }
1251     }
1252     else
1253     {
1254         HMI_SEQ_DEBUG(req_num, "Nothing Request. Waiting Request");
1255     }
1256 }
1257
1258 void App::api_ping() { this->dispatch_pending_events(); }
1259
1260 void App::send_event(char const *evname, char const *label)
1261 {
1262     HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
1263
1264     json_object *j = json_object_new_object();
1265     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
1266
1267     int ret = afb_event_push(this->map_afb_event[evname], j);
1268     if (ret != 0)
1269     {
1270         HMI_DEBUG("wm", "afb_event_push failed: %m");
1271     }
1272 }
1273
1274 void App::send_event(char const *evname, char const *label, char const *area,
1275                      int x, int y, int w, int h)
1276 {
1277     HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
1278               __func__, evname, label, area, x, y, w, h);
1279
1280     json_object *j_rect = json_object_new_object();
1281     json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
1282     json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
1283     json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
1284     json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
1285
1286     json_object *j = json_object_new_object();
1287     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
1288     json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
1289     json_object_object_add(j, kKeyDrawingRect, j_rect);
1290
1291     int ret = afb_event_push(this->map_afb_event[evname], j);
1292     if (ret != 0)
1293     {
1294         HMI_DEBUG("wm", "afb_event_push failed: %m");
1295     }
1296 }
1297
1298 /**
1299  * proxied events
1300  */
1301 void App::surface_created(uint32_t surface_id)
1302 {
1303     auto layer_id = this->layers.get_layer_id(surface_id);
1304     if (!layer_id)
1305     {
1306         HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
1307                   surface_id);
1308         return;
1309     }
1310
1311     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
1312
1313     this->controller->layers[*layer_id]->add_surface(surface_id);
1314     this->layout_commit();
1315     // activate the main_surface right away
1316     /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
1317       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
1318
1319       this->api_activate_surface(
1320          this->lookup_name(surface_id).value_or("unknown-name").c_str());
1321    }*/
1322
1323     // search pid from surfaceID
1324
1325     // pick up appid from pid from application manager
1326
1327     // check appid then add it to the client
1328 }
1329
1330 void App::surface_removed(uint32_t surface_id)
1331 {
1332     HMI_DEBUG("wm", "surface_id is %u", surface_id);
1333
1334     g_app_list.removeSurface(surface_id);
1335 }
1336
1337 void App::emit_activated(char const *label)
1338 {
1339     this->send_event(kListEventName[Event_Active], label);
1340 }
1341
1342 void App::emit_deactivated(char const *label)
1343 {
1344     this->send_event(kListEventName[Event_Inactive], label);
1345 }
1346
1347 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
1348 {
1349     this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
1350 }
1351
1352 void App::emit_syncdraw(const std::string &role, const std::string &area)
1353 {
1354     compositor::rect rect = this->layers.getAreaSize(area);
1355     //this->lm_get_area_info(area, &x, &y, &w, &h);
1356     this->send_event(kListEventName[Event_SyncDraw],
1357         role.c_str(), area.c_str(), rect.x, rect.y, rect.w, rect.h);
1358 }
1359
1360 void App::emit_flushdraw(char const *label)
1361 {
1362     this->send_event(kListEventName[Event_FlushDraw], label);
1363 }
1364
1365 void App::emit_visible(char const *label, bool is_visible)
1366 {
1367     this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
1368 }
1369
1370 void App::emit_invisible(char const *label)
1371 {
1372     return emit_visible(label, false);
1373 }
1374
1375 void App::emit_visible(char const *label) { return emit_visible(label, true); }
1376
1377 result<int> App::api_request_surface(char const *appid, char const *drawing_name)
1378 {
1379     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1380     if (!lid)
1381     {
1382         /**
1383        * register drawing_name as fallback and make it displayed.
1384        */
1385         lid = this->layers.get_layer_id(std::string("Fallback"));
1386         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1387         if (!lid)
1388         {
1389             return Err<int>("Drawing name does not match any role, Fallback is disabled");
1390         }
1391     }
1392
1393     auto rname = this->lookup_id(drawing_name);
1394     if (!rname)
1395     {
1396         // name does not exist yet, allocate surface id...
1397         auto id = int(this->id_alloc.generate_id(drawing_name));
1398         this->layers.add_surface(id, *lid);
1399
1400         // set the main_surface[_name] here and now
1401         if (!this->layers.main_surface_name.empty() &&
1402             this->layers.main_surface_name == drawing_name)
1403         {
1404             this->layers.main_surface = id;
1405             HMI_DEBUG("wm", "Set main_surface id to %u", id);
1406         }
1407
1408         // add client into the db
1409         std::string appid_str(appid);
1410         std::string role(drawing_name);
1411         //g_app_list.addClient(appid_str, role);
1412         g_app_list.addClient(appid_str, *lid, id, role);
1413
1414         return Ok<int>(id);
1415     }
1416
1417     // Check currently registered drawing names if it is already there.
1418     return Err<int>("Surface already present");
1419 }
1420
1421 char const *App::api_request_surface(char const *appid, char const *drawing_name,
1422                                      char const *ivi_id)
1423 {
1424     ST();
1425
1426     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1427     unsigned sid = std::stol(ivi_id);
1428
1429     if (!lid)
1430     {
1431         /**
1432        * register drawing_name as fallback and make it displayed.
1433        */
1434         lid = this->layers.get_layer_id(std::string("Fallback"));
1435         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1436         if (!lid)
1437         {
1438             return "Drawing name does not match any role, Fallback is disabled";
1439         }
1440     }
1441
1442     auto rname = this->lookup_id(drawing_name);
1443
1444     if (rname)
1445     {
1446         return "Surface already present";
1447     }
1448
1449     // register pair drawing_name and ivi_id
1450     this->id_alloc.register_name_id(drawing_name, sid);
1451     this->layers.add_surface(sid, *lid);
1452
1453     // this surface is already created
1454     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
1455
1456     this->controller->layers[*lid]->add_surface(sid);
1457     this->layout_commit();
1458
1459     return nullptr;
1460 }
1461
1462 result<json_object *> App::api_get_display_info()
1463 {
1464     // Check controller
1465     if (!this->controller)
1466     {
1467         return Err<json_object *>("ivi_controller global not available");
1468     }
1469
1470     // Set display info
1471     compositor::size o_size = this->controller->output_size;
1472     compositor::size p_size = this->controller->physical_size;
1473
1474     json_object *object = json_object_new_object();
1475     json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
1476     json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
1477     json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
1478     json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
1479
1480     return Ok<json_object *>(object);
1481 }
1482
1483 result<json_object *> App::api_get_area_info(char const *drawing_name)
1484 {
1485     HMI_DEBUG("wm", "called");
1486
1487     // Check drawing name, surface/layer id
1488     auto const &surface_id = this->lookup_id(drawing_name);
1489     if (!surface_id)
1490     {
1491         return Err<json_object *>("Surface does not exist");
1492     }
1493
1494     if (!this->controller->surface_exists(*surface_id))
1495     {
1496         return Err<json_object *>("Surface does not exist in controller!");
1497     }
1498
1499     auto layer_id = this->layers.get_layer_id(*surface_id);
1500     if (!layer_id)
1501     {
1502         return Err<json_object *>("Surface is not on any layer!");
1503     }
1504
1505     auto o_state = *this->layers.get_layout_state(*surface_id);
1506     if (o_state == nullptr)
1507     {
1508         return Err<json_object *>("Could not find layer for surface");
1509     }
1510
1511     struct LayoutState &state = *o_state;
1512     if ((state.main != *surface_id) && (state.sub != *surface_id))
1513     {
1514         return Err<json_object *>("Surface is inactive");
1515     }
1516
1517     // Set area rectangle
1518     compositor::rect area_info = this->area_info[*surface_id];
1519     json_object *object = json_object_new_object();
1520     json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
1521     json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
1522     json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
1523     json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
1524
1525     return Ok<json_object *>(object);
1526 }
1527
1528 void App::activate(int id)
1529 {
1530     auto ip = this->controller->sprops.find(id);
1531     if (ip != this->controller->sprops.end())
1532     {
1533         this->controller->surfaces[id]->set_visibility(1);
1534         char const *label =
1535             this->lookup_name(id).value_or("unknown-name").c_str();
1536
1537          // FOR CES DEMO >>>
1538         if ((0 == strcmp(label, "Radio"))       ||
1539             (0 == strcmp(label, "MediaPlayer")) ||
1540             (0 == strcmp(label, "Music"))       ||
1541             (0 == strcmp(label, "Navigation")))
1542         {
1543             for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
1544             {
1545                 if (id == *i)
1546                 {
1547                     // Remove id
1548                     this->surface_bg.erase(i);
1549
1550                     // Remove from BG layer (999)
1551                     HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
1552                     this->controller->layers[999]->remove_surface(id);
1553
1554                     // Add to FG layer (1001)
1555                     HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
1556                     this->controller->layers[1001]->add_surface(id);
1557
1558                     for (int j : this->surface_bg)
1559                     {
1560                         HMI_DEBUG("wm", "Stored id:%d", j);
1561                     }
1562                     break;
1563                 }
1564             }
1565         }
1566         // <<< FOR CES DEMO
1567         this->layout_commit();
1568
1569         this->emit_visible(label);
1570         this->emit_activated(label);
1571     }
1572 }
1573
1574 void App::deactivate(int id)
1575 {
1576     auto ip = this->controller->sprops.find(id);
1577     if (ip != this->controller->sprops.end())
1578     {
1579         char const *label =
1580             this->lookup_name(id).value_or("unknown-name").c_str();
1581
1582         // FOR CES DEMO >>>
1583         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
1584         {
1585
1586             // Store id
1587             this->surface_bg.push_back(id);
1588
1589             // Remove from FG layer (1001)
1590             HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1591             this->controller->layers[1001]->remove_surface(id);
1592
1593             // Add to BG layer (999)
1594             HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1595             this->controller->layers[999]->add_surface(id);
1596
1597             for (int j : surface_bg)
1598             {
1599                 HMI_DEBUG("wm", "Stored id:%d", j);
1600             }
1601         }
1602         else
1603         {
1604             this->controller->surfaces[id]->set_visibility(0);
1605         }
1606         // <<< FOR CES DEMO
1607
1608         this->emit_deactivated(label);
1609         this->emit_invisible(label);
1610     }
1611 }
1612
1613 void App::deactivate_main_surface()
1614 {
1615     this->layers.main_surface = -1;
1616     std::string appid = "HomeScreen";
1617     this->api_deactivate_surface(appid.c_str(), this->layers.main_surface_name.c_str(), [](const char *) {});
1618 }
1619
1620 bool App::can_split(struct LayoutState const &state, int new_id)
1621 {
1622     if (state.main != -1 && state.main != new_id)
1623     {
1624         auto new_id_layer = this->layers.get_layer_id(new_id).value();
1625         auto current_id_layer = this->layers.get_layer_id(state.main).value();
1626
1627         // surfaces are on separate layers, don't bother.
1628         if (new_id_layer != current_id_layer)
1629         {
1630             return false;
1631         }
1632
1633         std::string const &new_id_str = this->lookup_name(new_id).value();
1634         std::string const &cur_id_str = this->lookup_name(state.main).value();
1635
1636         auto const &layer = this->layers.get_layer(new_id_layer);
1637
1638         HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1639
1640         if (layer->layouts.empty())
1641         {
1642             return false;
1643         }
1644
1645         for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
1646         {
1647             HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1648             auto rem = std::regex(i->main_match);
1649             if (std::regex_match(cur_id_str, rem))
1650             {
1651                 // build the second one only if the first already matched
1652                 HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1653                 auto res = std::regex(i->sub_match);
1654                 if (std::regex_match(new_id_str, res))
1655                 {
1656                     HMI_DEBUG("wm", "layout matched!");
1657                     return true;
1658                 }
1659             }
1660         }
1661     }
1662
1663     return false;
1664 }
1665
1666 void App::try_layout(struct LayoutState & /*state*/,
1667                      struct LayoutState const &new_layout,
1668                      std::function<void(LayoutState const &nl)> apply)
1669 {
1670     if (this->policy.layout_is_valid(new_layout))
1671     {
1672         apply(new_layout);
1673     }
1674 }
1675
1676 /**
1677  * controller_hooks
1678  */
1679 void controller_hooks::surface_created(uint32_t surface_id)
1680 {
1681     this->app->surface_created(surface_id);
1682 }
1683
1684 void controller_hooks::surface_removed(uint32_t surface_id)
1685 {
1686     this->app->surface_removed(surface_id);
1687 }
1688
1689 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1690                                           uint32_t /*v*/) {}
1691
1692 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1693                                                      uint32_t /*x*/,
1694                                                      uint32_t /*y*/,
1695                                                      uint32_t /*w*/,
1696                                                      uint32_t /*h*/) {}
1697
1698 } // namespace wm