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 static const unsigned kTimeOut = 3000000UL; /* 3s */
  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(action.role, action.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(x.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.addRequest(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         this->processNextRequest();
 943     }
 944 }
 945
 946 void App::api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply)
 947 {
 948     ST();
 949
 950     /*
 951    * Check Phase
 952    */
 953     std::string id = appid;
 954     std::string role = drawing_name;
 955     std::string area = ""; //drawing_area;
 956     Task task = Task::TASK_RELEASE;
 957     unsigned req_num = 0;
 958     WMError ret = WMError::UNKNOWN;
 959
 960     ret = this->setRequest(id, role, area, task, &req_num);
 961
 962     if (ret != WMError::SUCCESS)
 963     {
 964         HMI_ERROR("wm", errorDescription(ret));
 965         reply("Failed to set request");
 966         return;
 967     }
 968
 969     reply(nullptr);
 970     if (req_num != g_app_list.currentRequestNumber())
 971     {
 972         // Add request, then invoked after the previous task is finished
 973         HMI_SEQ_DEBUG(req_num, "request is accepted");
 974         return;
 975     }
 976
 977     /*
 978     * Do allocate tasks
 979     */
 980     ret = this->doTransition(req_num);
 981
 982     if (ret != WMError::SUCCESS)
 983     {
 984         //this->emit_error()
 985         HMI_SEQ_ERROR(req_num, errorDescription(ret));
 986         g_app_list.removeRequest(req_num);
 987         this->processNextRequest();
 988     }
 989 }
 990
 991 void App::enqueue_flushdraw(int surface_id)
 992 {
 993     this->check_flushdraw(surface_id);
 994     HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 995     this->pending_end_draw.push_back(surface_id);
 996 }
 997
 998 void App::check_flushdraw(int surface_id)
 999 {
1000     auto i = std::find(std::begin(this->pending_end_draw),
1001                        std::end(this->pending_end_draw), surface_id);
1002     if (i != std::end(this->pending_end_draw))
1003     {
1004         auto n = this->lookup_name(surface_id);
1005         HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
1006                   n ? n->c_str() : "unknown-name", surface_id);
1007         std::swap(this->pending_end_draw[std::distance(
1008                       std::begin(this->pending_end_draw), i)],
1009                   this->pending_end_draw.back());
1010         this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
1011     }
1012 }
1013
1014 WMError App::doEndDraw(unsigned req_num)
1015 {
1016     // get actions
1017     bool found;
1018     auto actions = g_app_list.getActions(req_num, &found);
1019     WMError ret = WMError::SUCCESS;
1020     if (!found)
1021     {
1022         ret = WMError::NO_ENTRY;
1023         return ret;
1024     }
1025
1026     HMI_SEQ_INFO(req_num, "do endDraw");
1027
1028     // layout change and make it visible
1029     for (const auto &act : actions)
1030     {
1031         // layout change
1032         if(!g_app_list.contains(act.appid)){
1033             ret = WMError::NOT_REGISTERED;
1034         }
1035         ret = this->layoutChange(act);
1036         if(ret != WMError::SUCCESS)
1037         {
1038             HMI_SEQ_WARNING(req_num, "Failed to manipulate surfaces while state change : %s", errorDescription(ret));
1039             return ret;
1040         }
1041         ret = this->visibilityChange(act);
1042         if (ret != WMError::SUCCESS)
1043         {
1044             HMI_SEQ_WARNING(req_num, "Failed to manipulate surfaces while state change : %s", errorDescription(ret));
1045             return ret;
1046         }
1047         HMI_SEQ_DEBUG(req_num, "visible %s", act.role.c_str());
1048         //this->lm_enddraw(act.role.c_str());
1049     }
1050
1051     // Change current state
1052     this->changeCurrentState(req_num);
1053
1054     HMI_SEQ_INFO(req_num, "emit flushDraw");
1055
1056     for(const auto &act_flush : actions)
1057     {
1058         if(act_flush.visible != TaskVisible::INVISIBLE)
1059         {
1060             this->emit_flushdraw(act_flush.role.c_str());
1061         }
1062     }
1063
1064     return ret;
1065 }
1066
1067 WMError App::setSurfaceSize(unsigned surface, const std::string &area)
1068 {
1069     this->surface_set_layout(surface, area);
1070
1071     return WMError::SUCCESS;
1072 }
1073
1074 WMError App::layoutChange(const WMAction &action)
1075 {
1076     if (action.visible == TaskVisible::INVISIBLE)
1077     {
1078         // Visibility is not change -> no redraw is required
1079         return WMError::SUCCESS;
1080     }
1081     auto client = g_app_list.lookUpClient(action.appid);
1082     unsigned surface = client->surfaceID(action.role);
1083     if (surface == 0)
1084     {
1085         HMI_SEQ_ERROR(g_app_list.currentRequestNumber(),
1086                       "client doesn't have surface with role(%s)", action.role.c_str());
1087         return WMError::NOT_REGISTERED;
1088     }
1089     // Layout Manager
1090     WMError ret = this->setSurfaceSize(surface, action.area);
1091     return ret;
1092 }
1093
1094 WMError App::visibilityChange(const WMAction &action)
1095 {
1096     HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "Change visibility");
1097     if(!g_app_list.contains(action.appid)){
1098         return WMError::NOT_REGISTERED;
1099     }
1100     auto client = g_app_list.lookUpClient(action.appid);
1101     unsigned surface = client->surfaceID(action.role);
1102     if(surface == 0)
1103     {
1104         HMI_SEQ_ERROR(g_app_list.currentRequestNumber(),
1105                       "client doesn't have surface with role(%s)", action.role.c_str());
1106         return WMError::NOT_REGISTERED;
1107     }
1108
1109     if (action.visible != TaskVisible::INVISIBLE)
1110     {
1111         this->activate(surface); // Layout Manager task
1112     }
1113     else
1114     {
1115         this->deactivate(surface); // Layout Manager task
1116     }
1117     return WMError::SUCCESS;
1118 }
1119
1120 WMError App::changeCurrentState(unsigned req_num)
1121 {
1122     HMI_SEQ_DEBUG(req_num, "Change current layout state");
1123     bool trigger_found = false, action_found = false;
1124     auto trigger = g_app_list.getRequest(req_num, &trigger_found);
1125     auto actions = g_app_list.getActions(req_num, &action_found);
1126     if (!trigger_found || !action_found)
1127     {
1128         HMI_SEQ_ERROR(req_num, "Action not found");
1129         return WMError::LAYOUT_CHANGE_FAIL;
1130     }
1131
1132     // Layout state reset
1133     struct LayoutState reset_state{-1, -1};
1134     HMI_SEQ_DEBUG(req_num,"Reset layout state");
1135     for (const auto &action : actions)
1136     {
1137         if(!g_app_list.contains(action.appid)){
1138             return WMError::NOT_REGISTERED;
1139         }
1140         auto client = g_app_list.lookUpClient(action.appid);
1141         auto pCurState = *this->layers.get_layout_state((int)client->surfaceID(action.role));
1142         if(pCurState == nullptr)
1143         {
1144             HMI_SEQ_ERROR(req_num, "Counldn't find current status");
1145             continue;
1146         }
1147         pCurState->main = reset_state.main;
1148         pCurState->sub = reset_state.sub;
1149     }
1150
1151     HMI_SEQ_DEBUG(req_num, "Change state");
1152     for (const auto &action : actions)
1153     {
1154         auto client = g_app_list.lookUpClient(action.appid);
1155         auto pLayerCurState = *this->layers.get_layout_state((int)client->surfaceID(action.role));
1156         if (pLayerCurState == nullptr)
1157         {
1158             HMI_SEQ_ERROR(req_num, "Counldn't find current status");
1159             continue;
1160         }
1161         int surface = -1;
1162
1163         if (action.visible != TaskVisible::INVISIBLE)
1164         {
1165             surface = (int)client->surfaceID(action.role);
1166             HMI_SEQ_INFO(req_num, "Change %s surface : %d, state visible area : %s",
1167                             action.role.c_str(), surface, action.area.c_str());
1168             // visible == true -> layout changes
1169             if(action.area == "normal.full" || action.area == "split.main")
1170             {
1171                 pLayerCurState->main = surface;
1172             }
1173             else if (action.area == "split.sub")
1174             {
1175                 pLayerCurState->sub = surface;
1176             }
1177             else
1178             {
1179                 // normalfull
1180                 pLayerCurState->main = surface;
1181             }
1182         }
1183     }
1184
1185     return WMError::SUCCESS;
1186 }
1187
1188 void App::api_enddraw(char const *appid, char const *drawing_name)
1189 {
1190     std::string id = appid;
1191     std::string role = drawing_name;
1192     unsigned current_req = g_app_list.currentRequestNumber();
1193     bool result = g_app_list.setEndDrawFinished(current_req, id, role);
1194
1195     if (!result)
1196     {
1197         HMI_ERROR("wm", "%s is not in transition state", id.c_str());
1198         return;
1199     }
1200
1201     if (g_app_list.endDrawFullfilled(current_req))
1202     {
1203         // do task for endDraw
1204         this->stopTimer();
1205         WMError ret = this->doEndDraw(current_req);
1206
1207         if(ret != WMError::SUCCESS)
1208         {
1209             //this->emit_error();
1210         }
1211         HMI_SEQ_INFO(current_req, "Finish request status: %s", errorDescription(ret));
1212
1213         g_app_list.removeRequest(current_req);
1214
1215         this->processNextRequest();
1216     }
1217     else
1218     {
1219         HMI_SEQ_INFO(current_req, "Wait other App call endDraw");
1220         return;
1221     }
1222 }
1223
1224 void App::processNextRequest()
1225 {
1226     g_app_list.next();
1227     g_app_list.reqDump();
1228     unsigned req_num = g_app_list.currentRequestNumber();
1229     if (g_app_list.haveRequest())
1230     {
1231         HMI_SEQ_DEBUG(req_num, "Process next request");
1232         WMError rc = doTransition(req_num);
1233         if (rc != WMError::SUCCESS)
1234         {
1235             HMI_SEQ_ERROR(req_num, errorDescription(rc));
1236         }
1237     }
1238     else
1239     {
1240         HMI_SEQ_DEBUG(req_num, "Nothing Request. Waiting Request");
1241     }
1242 }
1243
1244 void App::api_ping() { this->dispatch_pending_events(); }
1245
1246 void App::send_event(char const *evname, char const *label)
1247 {
1248     HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
1249
1250     json_object *j = json_object_new_object();
1251     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
1252
1253     int ret = afb_event_push(this->map_afb_event[evname], j);
1254     if (ret != 0)
1255     {
1256         HMI_DEBUG("wm", "afb_event_push failed: %m");
1257     }
1258 }
1259
1260 void App::send_event(char const *evname, char const *label, char const *area,
1261                      int x, int y, int w, int h)
1262 {
1263     HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
1264               __func__, evname, label, area, x, y, w, h);
1265
1266     json_object *j_rect = json_object_new_object();
1267     json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
1268     json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
1269     json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
1270     json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
1271
1272     json_object *j = json_object_new_object();
1273     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
1274     json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
1275     json_object_object_add(j, kKeyDrawingRect, j_rect);
1276
1277     int ret = afb_event_push(this->map_afb_event[evname], j);
1278     if (ret != 0)
1279     {
1280         HMI_DEBUG("wm", "afb_event_push failed: %m");
1281     }
1282 }
1283
1284 /**
1285  * proxied events
1286  */
1287 void App::surface_created(uint32_t surface_id)
1288 {
1289     auto layer_id = this->layers.get_layer_id(surface_id);
1290     if (!layer_id)
1291     {
1292         HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
1293                   surface_id);
1294         return;
1295     }
1296
1297     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
1298
1299     this->controller->layers[*layer_id]->add_surface(surface_id);
1300     this->layout_commit();
1301     // activate the main_surface right away
1302     /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
1303       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
1304
1305       this->api_activate_surface(
1306          this->lookup_name(surface_id).value_or("unknown-name").c_str());
1307    }*/
1308
1309     // search pid from surfaceID
1310
1311     // pick up appid from pid from application manager
1312
1313     // check appid then add it to the client
1314 }
1315
1316 void App::surface_removed(uint32_t surface_id)
1317 {
1318     HMI_DEBUG("wm", "surface_id is %u", surface_id);
1319
1320     g_app_list.removeSurface(surface_id);
1321 }
1322
1323 void App::emit_activated(char const *label)
1324 {
1325     this->send_event(kListEventName[Event_Active], label);
1326 }
1327
1328 void App::emit_deactivated(char const *label)
1329 {
1330     this->send_event(kListEventName[Event_Inactive], label);
1331 }
1332
1333 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
1334 {
1335     this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
1336 }
1337
1338 void App::emit_syncdraw(const std::string &role, const std::string &area)
1339 {
1340     compositor::rect rect = this->layers.getAreaSize(area);
1341     //this->lm_get_area_info(area, &x, &y, &w, &h);
1342     this->send_event(kListEventName[Event_SyncDraw],
1343         role.c_str(), area.c_str(), rect.x, rect.y, rect.w, rect.h);
1344 }
1345
1346 void App::emit_flushdraw(char const *label)
1347 {
1348     this->send_event(kListEventName[Event_FlushDraw], label);
1349 }
1350
1351 void App::emit_visible(char const *label, bool is_visible)
1352 {
1353     this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
1354 }
1355
1356 void App::emit_invisible(char const *label)
1357 {
1358     return emit_visible(label, false);
1359 }
1360
1361 void App::emit_visible(char const *label) { return emit_visible(label, true); }
1362
1363 result<int> App::api_request_surface(char const *appid, char const *drawing_name)
1364 {
1365     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1366     if (!lid)
1367     {
1368         /**
1369        * register drawing_name as fallback and make it displayed.
1370        */
1371         lid = this->layers.get_layer_id(std::string("Fallback"));
1372         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1373         if (!lid)
1374         {
1375             return Err<int>("Drawing name does not match any role, Fallback is disabled");
1376         }
1377     }
1378
1379     auto rname = this->lookup_id(drawing_name);
1380     if (!rname)
1381     {
1382         // name does not exist yet, allocate surface id...
1383         auto id = int(this->id_alloc.generate_id(drawing_name));
1384         this->layers.add_surface(id, *lid);
1385
1386         // set the main_surface[_name] here and now
1387         if (!this->layers.main_surface_name.empty() &&
1388             this->layers.main_surface_name == drawing_name)
1389         {
1390             this->layers.main_surface = id;
1391             HMI_DEBUG("wm", "Set main_surface id to %u", id);
1392         }
1393
1394         // add client into the db
1395         std::string appid_str(appid);
1396         std::string role(drawing_name);
1397         //g_app_list.addClient(appid_str, role);
1398         g_app_list.addClient(appid_str, *lid, id, role);
1399
1400         return Ok<int>(id);
1401     }
1402
1403     // Check currently registered drawing names if it is already there.
1404     return Err<int>("Surface already present");
1405 }
1406
1407 char const *App::api_request_surface(char const *appid, char const *drawing_name,
1408                                      char const *ivi_id)
1409 {
1410     ST();
1411
1412     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1413     unsigned sid = std::stol(ivi_id);
1414
1415     if (!lid)
1416     {
1417         /**
1418        * register drawing_name as fallback and make it displayed.
1419        */
1420         lid = this->layers.get_layer_id(std::string("Fallback"));
1421         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1422         if (!lid)
1423         {
1424             return "Drawing name does not match any role, Fallback is disabled";
1425         }
1426     }
1427
1428     auto rname = this->lookup_id(drawing_name);
1429
1430     if (rname)
1431     {
1432         return "Surface already present";
1433     }
1434
1435     // register pair drawing_name and ivi_id
1436     this->id_alloc.register_name_id(drawing_name, sid);
1437     this->layers.add_surface(sid, *lid);
1438
1439     // this surface is already created
1440     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
1441
1442     this->controller->layers[*lid]->add_surface(sid);
1443     this->layout_commit();
1444
1445     return nullptr;
1446 }
1447
1448 result<json_object *> App::api_get_display_info()
1449 {
1450     // Check controller
1451     if (!this->controller)
1452     {
1453         return Err<json_object *>("ivi_controller global not available");
1454     }
1455
1456     // Set display info
1457     compositor::size o_size = this->controller->output_size;
1458     compositor::size p_size = this->controller->physical_size;
1459
1460     json_object *object = json_object_new_object();
1461     json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
1462     json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
1463     json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
1464     json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
1465
1466     return Ok<json_object *>(object);
1467 }
1468
1469 result<json_object *> App::api_get_area_info(char const *drawing_name)
1470 {
1471     HMI_DEBUG("wm", "called");
1472
1473     // Check drawing name, surface/layer id
1474     auto const &surface_id = this->lookup_id(drawing_name);
1475     if (!surface_id)
1476     {
1477         return Err<json_object *>("Surface does not exist");
1478     }
1479
1480     if (!this->controller->surface_exists(*surface_id))
1481     {
1482         return Err<json_object *>("Surface does not exist in controller!");
1483     }
1484
1485     auto layer_id = this->layers.get_layer_id(*surface_id);
1486     if (!layer_id)
1487     {
1488         return Err<json_object *>("Surface is not on any layer!");
1489     }
1490
1491     auto o_state = *this->layers.get_layout_state(*surface_id);
1492     if (o_state == nullptr)
1493     {
1494         return Err<json_object *>("Could not find layer for surface");
1495     }
1496
1497     struct LayoutState &state = *o_state;
1498     if ((state.main != *surface_id) && (state.sub != *surface_id))
1499     {
1500         return Err<json_object *>("Surface is inactive");
1501     }
1502
1503     // Set area rectangle
1504     compositor::rect area_info = this->area_info[*surface_id];
1505     json_object *object = json_object_new_object();
1506     json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
1507     json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
1508     json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
1509     json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
1510
1511     return Ok<json_object *>(object);
1512 }
1513
1514 void App::activate(int id)
1515 {
1516     auto ip = this->controller->sprops.find(id);
1517     if (ip != this->controller->sprops.end())
1518     {
1519         this->controller->surfaces[id]->set_visibility(1);
1520         char const *label =
1521             this->lookup_name(id).value_or("unknown-name").c_str();
1522
1523          // FOR CES DEMO >>>
1524         if ((0 == strcmp(label, "Radio"))       ||
1525             (0 == strcmp(label, "MediaPlayer")) ||
1526             (0 == strcmp(label, "Music"))       ||
1527             (0 == strcmp(label, "Navigation")))
1528         {
1529             for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
1530             {
1531                 if (id == *i)
1532                 {
1533                     // Remove id
1534                     this->surface_bg.erase(i);
1535
1536                     // Remove from BG layer (999)
1537                     HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
1538                     this->controller->layers[999]->remove_surface(id);
1539
1540                     // Add to FG layer (1001)
1541                     HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
1542                     this->controller->layers[1001]->add_surface(id);
1543
1544                     for (int j : this->surface_bg)
1545                     {
1546                         HMI_DEBUG("wm", "Stored id:%d", j);
1547                     }
1548                     break;
1549                 }
1550             }
1551         }
1552         // <<< FOR CES DEMO
1553         this->layout_commit();
1554
1555         this->emit_visible(label);
1556         this->emit_activated(label);
1557     }
1558 }
1559
1560 void App::deactivate(int id)
1561 {
1562     auto ip = this->controller->sprops.find(id);
1563     if (ip != this->controller->sprops.end())
1564     {
1565         char const *label =
1566             this->lookup_name(id).value_or("unknown-name").c_str();
1567
1568         // FOR CES DEMO >>>
1569         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
1570         {
1571
1572             // Store id
1573             this->surface_bg.push_back(id);
1574
1575             // Remove from FG layer (1001)
1576             HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1577             this->controller->layers[1001]->remove_surface(id);
1578
1579             // Add to BG layer (999)
1580             HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1581             this->controller->layers[999]->add_surface(id);
1582
1583             for (int j : surface_bg)
1584             {
1585                 HMI_DEBUG("wm", "Stored id:%d", j);
1586             }
1587         }
1588         else
1589         {
1590             this->controller->surfaces[id]->set_visibility(0);
1591         }
1592         // <<< FOR CES DEMO
1593
1594         this->emit_deactivated(label);
1595         this->emit_invisible(label);
1596     }
1597 }
1598
1599 void App::deactivate_main_surface()
1600 {
1601     this->layers.main_surface = -1;
1602     std::string appid = "HomeScreen";
1603     this->api_deactivate_surface(appid.c_str(), this->layers.main_surface_name.c_str(), [](const char *) {});
1604 }
1605
1606 bool App::can_split(struct LayoutState const &state, int new_id)
1607 {
1608     if (state.main != -1 && state.main != new_id)
1609     {
1610         auto new_id_layer = this->layers.get_layer_id(new_id).value();
1611         auto current_id_layer = this->layers.get_layer_id(state.main).value();
1612
1613         // surfaces are on separate layers, don't bother.
1614         if (new_id_layer != current_id_layer)
1615         {
1616             return false;
1617         }
1618
1619         std::string const &new_id_str = this->lookup_name(new_id).value();
1620         std::string const &cur_id_str = this->lookup_name(state.main).value();
1621
1622         auto const &layer = this->layers.get_layer(new_id_layer);
1623
1624         HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1625
1626         if (layer->layouts.empty())
1627         {
1628             return false;
1629         }
1630
1631         for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
1632         {
1633             HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1634             auto rem = std::regex(i->main_match);
1635             if (std::regex_match(cur_id_str, rem))
1636             {
1637                 // build the second one only if the first already matched
1638                 HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1639                 auto res = std::regex(i->sub_match);
1640                 if (std::regex_match(new_id_str, res))
1641                 {
1642                     HMI_DEBUG("wm", "layout matched!");
1643                     return true;
1644                 }
1645             }
1646         }
1647     }
1648
1649     return false;
1650 }
1651
1652 void App::try_layout(struct LayoutState & /*state*/,
1653                      struct LayoutState const &new_layout,
1654                      std::function<void(LayoutState const &nl)> apply)
1655 {
1656     if (this->policy.layout_is_valid(new_layout))
1657     {
1658         apply(new_layout);
1659     }
1660 }
1661
1662 /**
1663  * controller_hooks
1664  */
1665 void controller_hooks::surface_created(uint32_t surface_id)
1666 {
1667     this->app->surface_created(surface_id);
1668 }
1669
1670 void controller_hooks::surface_removed(uint32_t surface_id)
1671 {
1672     this->app->surface_removed(surface_id);
1673 }
1674
1675 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1676                                           uint32_t /*v*/) {}
1677
1678 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1679                                                      uint32_t /*x*/,
1680                                                      uint32_t /*y*/,
1681                                                      uint32_t /*w*/,
1682                                                      uint32_t /*h*/) {}
1683
1684 } // namespace wm