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 "windowmanager-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 TIME_OUT = 1000000UL; /* 1s */
  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 const std::string task_allocate = "allocate";
  72 static const std::string task_release = "release";
  73 static sd_event_source *timer_ev_src = nullptr;
  74
  75 static AppList app_list;
  76
  77 namespace
  78 {
  79
  80 using nlohmann::json;
  81
  82 result<json> file_to_json(char const *filename)
  83 {
  84     json j;
  85     std::ifstream i(filename);
  86     if (i.fail())
  87     {
  88         HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  89         j = default_layers_json;
  90     }
  91     else
  92     {
  93         i >> j;
  94     }
  95
  96     return Ok(j);
  97 }
  98
  99 struct result<layer_map> load_layer_map(char const *filename)
 100 {
 101     HMI_DEBUG("wm", "loading IDs from %s", filename);
 102
 103     auto j = file_to_json(filename);
 104     if (j.is_err())
 105     {
 106         return Err<layer_map>(j.unwrap_err());
 107     }
 108     json jids = j.unwrap();
 109
 110     return to_layer_map(jids);
 111 }
 112
 113 static int
 114 processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata)
 115 {
 116     HMI_NOTICE("wm", "Time out occurs because the client replys endDraw slow, so revert the request");
 117     reinterpret_cast<wm::App *>(userdata)->timerHandler();
 118     return 0;
 119 }
 120
 121 } // namespace
 122
 123 void App::timerHandler()
 124 {
 125     unsigned seq = app_list.currentSequenceNumber();
 126     HMI_SEQ_DEBUG(seq, "Timer expired remove Request");
 127     app_list.removeRequest(seq);
 128     app_list.next();
 129     if (app_list.haveRequest())
 130     {
 131         this->process_request();
 132     }
 133 }
 134
 135 /**
 136  * App Impl
 137  */
 138 App::App(wl::display *d)
 139     : chooks{this},
 140       display{d},
 141       controller{},
 142       outputs(),
 143       config(),
 144       layers(),
 145       id_alloc{},
 146       pending_events(false),
 147       policy{}
 148 {
 149     try
 150     {
 151         {
 152             auto l = load_layer_map(
 153                 this->config.get_string("layers.json").value().c_str());
 154             if (l.is_ok())
 155             {
 156                 this->layers = l.unwrap();
 157             }
 158             else
 159             {
 160                 HMI_ERROR("wm", "%s", l.err().value());
 161             }
 162         }
 163     }
 164     catch (std::exception &e)
 165     {
 166         HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 167     }
 168 }
 169
 170 int App::init()
 171 {
 172     if (!this->display->ok())
 173     {
 174         return -1;
 175     }
 176
 177     if (this->layers.mapping.empty())
 178     {
 179         HMI_ERROR("wm", "No surface -> layer mapping loaded");
 180         return -1;
 181     }
 182
 183     // Make afb event
 184     for (int i = Event_Val_Min; i <= Event_Val_Max; i++)
 185     {
 186         map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 187     }
 188
 189     this->display->add_global_handler(
 190         "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 191             this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 192         });
 193
 194     this->display->add_global_handler(
 195         "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 196             this->controller =
 197                 std::make_unique<struct compositor::controller>(r, name, v);
 198
 199             // Init controller hooks
 200             this->controller->chooks = &this->chooks;
 201
 202             // This protocol needs the output, so lets just add our mapping here...
 203             this->controller->add_proxy_to_id_mapping(
 204                 this->outputs.back()->proxy.get(),
 205                 wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 206                     this->outputs.back()->proxy.get())));
 207
 208             // Create screen
 209             this->controller->create_screen(this->outputs.back()->proxy.get());
 210
 211             // Set display to controller
 212             this->controller->display = this->display;
 213         });
 214
 215     // First level objects
 216     this->display->roundtrip();
 217     // Second level objects
 218     this->display->roundtrip();
 219     // Third level objects
 220     this->display->roundtrip();
 221
 222     return init_layers();
 223 }
 224
 225 int App::dispatch_pending_events()
 226 {
 227     if (this->pop_pending_events())
 228     {
 229         this->display->dispatch_pending();
 230         return 0;
 231     }
 232     return -1;
 233 }
 234
 235 bool App::pop_pending_events()
 236 {
 237     bool x{true};
 238     return this->pending_events.compare_exchange_strong(
 239         x, false, std::memory_order_consume);
 240 }
 241
 242 void App::set_pending_events()
 243 {
 244     this->pending_events.store(true, std::memory_order_release);
 245 }
 246
 247 optional<int> App::lookup_id(char const *name)
 248 {
 249     return this->id_alloc.lookup(std::string(name));
 250 }
 251 optional<std::string> App::lookup_name(int id)
 252 {
 253     return this->id_alloc.lookup(id);
 254 }
 255
 256 /**
 257  * init_layers()
 258  */
 259 int App::init_layers()
 260 {
 261     if (!this->controller)
 262     {
 263         HMI_ERROR("wm", "ivi_controller global not available");
 264         return -1;
 265     }
 266
 267     if (this->outputs.empty())
 268     {
 269         HMI_ERROR("wm", "no output was set up!");
 270         return -1;
 271     }
 272
 273     auto &c = this->controller;
 274
 275     auto &o = this->outputs.front();
 276     auto &s = c->screens.begin()->second;
 277     auto &layers = c->layers;
 278
 279     // Write output dimensions to ivi controller...
 280     c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 281     c->physical_size = compositor::size{uint32_t(o->physical_width),
 282                                         uint32_t(o->physical_height)};
 283
 284     // Clear scene
 285     layers.clear();
 286
 287     // Clear screen
 288     s->clear();
 289
 290     // Quick and dirty setup of layers
 291     for (auto const &i : this->layers.mapping)
 292     {
 293         c->layer_create(i.second.layer_id, o->width, o->height);
 294         auto &l = layers[i.second.layer_id];
 295         l->set_destination_rectangle(0, 0, o->width, o->height);
 296         l->set_visibility(1);
 297         HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 298                   i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 299     }
 300
 301     // Add layers to screen
 302     s->set_render_order(this->layers.layers);
 303
 304     this->layout_commit();
 305
 306     return 0;
 307 }
 308
 309 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id)
 310 {
 311     if (!this->controller->surface_exists(surface_id))
 312     {
 313         HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 314         return;
 315     }
 316
 317     auto o_layer_id = this->layers.get_layer_id(surface_id);
 318
 319     if (!o_layer_id)
 320     {
 321         HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 322         return;
 323     }
 324
 325     uint32_t layer_id = *o_layer_id;
 326
 327     auto const &layer = this->layers.get_layer(layer_id);
 328     auto rect = layer.value().rect;
 329     auto &s = this->controller->surfaces[surface_id];
 330
 331     int x = rect.x;
 332     int y = rect.y;
 333     int w = rect.w;
 334     int h = rect.h;
 335
 336     // less-than-0 values refer to MAX + 1 - $VALUE
 337     // e.g. MAX is either screen width or height
 338     if (w < 0)
 339     {
 340         w = this->controller->output_size.w + 1 + w;
 341     }
 342     if (h < 0)
 343     {
 344         h = this->controller->output_size.h + 1 + h;
 345     }
 346
 347     if (sub_surface_id)
 348     {
 349         if (o_layer_id != this->layers.get_layer_id(*sub_surface_id))
 350         {
 351             HMI_ERROR("wm",
 352                       "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 353                       surface_id, *sub_surface_id);
 354             return;
 355         }
 356
 357         int x_off = 0;
 358         int y_off = 0;
 359
 360         // split along major axis
 361         if (w > h)
 362         {
 363             w /= 2;
 364             x_off = w;
 365         }
 366         else
 367         {
 368             h /= 2;
 369             y_off = h;
 370         }
 371
 372         auto &ss = this->controller->surfaces[*sub_surface_id];
 373
 374         HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 375                   *sub_surface_id, layer_id);
 376
 377         // set destination to the display rectangle
 378         ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 379
 380         this->area_info[*sub_surface_id].x = x;
 381         this->area_info[*sub_surface_id].y = y;
 382         this->area_info[*sub_surface_id].w = w;
 383         this->area_info[*sub_surface_id].h = h;
 384     }
 385
 386     HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 387               layer_id);
 388
 389     // set destination to the display rectangle
 390     s->set_destination_rectangle(x, y, w, h);
 391
 392     // update area information
 393     this->area_info[surface_id].x = x;
 394     this->area_info[surface_id].y = y;
 395     this->area_info[surface_id].w = w;
 396     this->area_info[surface_id].h = h;
 397
 398     HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 399               surface_id, layer_id, x, y, w, h);
 400 }
 401
 402 void App::layout_commit()
 403 {
 404     this->controller->commit_changes();
 405     this->display->flush();
 406 }
 407
 408 void App::set_timer(){
 409     HMI_SEQ_DEBUG(app_list.currentSequenceNumber(), "Timer set activate");
 410     if (timer_ev_src != nullptr)
 411     {
 412         // firsttime set into sd_event
 413         int ret = sd_event_add_time(afb_daemon_get_event_loop(), &timer_ev_src,
 414                                     CLOCK_REALTIME, time(NULL) + TIME_OUT, 0, processTimerHandler, this);
 415         if (ret < 0)
 416         {
 417             HMI_ERROR("wm", "Could't set timer");
 418         }
 419     }
 420     else
 421     {
 422         // update timer limitation after second time
 423         sd_event_source_set_time(timer_ev_src, time(NULL) + TIME_OUT);
 424         sd_event_source_set_enabled(timer_ev_src, SD_EVENT_ONESHOT);
 425     }
 426 }
 427
 428 void App::stop_timer(){
 429     unsigned seq = app_list.currentSequenceNumber();
 430     HMI_SEQ_DEBUG(seq, "Timer stop");
 431     int rc = sd_event_source_set_enabled(timer_ev_src, SD_EVENT_OFF);
 432     if(rc < 0){
 433         HMI_SEQ_ERROR(seq, "Timer stop failed");
 434     }
 435 }
 436
 437 bool App::do_allocate_window_resource(unsigned req_num)
 438 {
 439     /*
 440     * Check Policy
 441     */
 442    // get current trigger
 443     auto trigger = app_list.getRequest(req_num);
 444
 445     /*  get new status from Policy Manager
 446
 447     (json_object*?) newLayout = checkPolicy(trigger);
 448     (vector<struct WMAction>&) auto actions = translator.inputActionFromLayout(newLayout, currentLayout)
 449     for(const auto& x : actions){
 450         app_list.setAciton(req_num, x)
 451     }
 452
 453     or
 454
 455     translator.inputActionFromLayout(newLayout, currentLayout, &app_list, req_num);
 456
 457     /* The following error check is not necessary because main.cpp will reject the message form not registered object
 458    } */
 459     HMI_SEQ_NOTICE(req_num, "ATM, Policy manager does't exist, then set WMAction as is");
 460
 461     bool ret = app_list.setAction(req_num, trigger.appid, trigger.role, trigger.area);
 462
 463     app_list.req_dump();
 464
 465     /*
 466     lm_.updateLayout(jobj);
 467     TODO: emit syncDraw with application
 468
 469     client->emit_syncdraw(role); */
 470
 471     // layer manager task
 472     const char *msg = this->check_surface_exist(req_num, trigger.appid.c_str());
 473
 474     if (msg)
 475     {
 476         HMI_SEQ_DEBUG(req_num, msg);
 477         app_list.removeRequest(req_num);
 478         return false;
 479     }
 480     this->lm_layout_change(req_num, trigger.appid.c_str());
 481
 482     if (ret && (msg == nullptr)) {
 483         this->set_timer();
 484     } else {
 485         //this->emit_error(request_seq, 0 /*error_num*/, "error happens"); // test
 486     }
 487     return ret;
 488 }
 489
 490 void App::lm_layout_change(unsigned req_num, const char* drawing_name)
 491 {
 492     auto const &surface_id = this->lookup_id(drawing_name);
 493     auto layer_id = this->layers.get_layer_id(*surface_id);
 494     auto o_state = *this->layers.get_layout_state(*surface_id);
 495     struct LayoutState &state = *o_state;
 496
 497     // disable layers that are above our current layer
 498     for (auto const &l : this->layers.mapping)
 499     {
 500         if (l.second.layer_id <= *layer_id)
 501         {
 502             continue;
 503         }
 504
 505         bool flush = false;
 506         if (l.second.state.main != -1)
 507         {
 508             this->deactivate(l.second.state.main);
 509             l.second.state.main = -1;
 510             flush = true;
 511         }
 512
 513         if (l.second.state.sub != -1)
 514         {
 515             this->deactivate(l.second.state.sub);
 516             l.second.state.sub = -1;
 517             flush = true;
 518         }
 519
 520         if (flush)
 521         {
 522             this->layout_commit();
 523         }
 524     }
 525
 526     auto layer = this->layers.get_layer(*layer_id);
 527
 528     if (state.main == -1)
 529     {
 530         this->try_layout(
 531             state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 532                 HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 533                 this->surface_set_layout(*surface_id);
 534                 state = nl;
 535
 536                 // Commit for configuraton
 537                 this->layout_commit();
 538
 539                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 540                 compositor::rect area_rect = this->area_info[*surface_id];
 541                 this->emit_syncdraw(drawing_name, str_area.c_str(),
 542                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 543                 this->enqueue_flushdraw(state.main);
 544             });
 545     }
 546     else
 547     {
 548         if (0 == strcmp(drawing_name, "HomeScreen"))
 549         {
 550             this->try_layout(
 551                 state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 552                     HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 553                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 554                     compositor::rect area_rect = this->area_info[*surface_id];
 555                     this->emit_syncdraw(drawing_name, str_area.c_str(),
 556                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 557                     this->enqueue_flushdraw(state.main);
 558                 });
 559         }
 560         else
 561         {
 562             bool can_split = this->can_split(state, *surface_id);
 563
 564             if (can_split)
 565             {
 566                 this->try_layout(
 567                     state,
 568                     LayoutState{state.main, *surface_id},
 569                     [&](LayoutState const &nl) {
 570                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 571                         std::string main =
 572                             std::move(*this->lookup_name(state.main));
 573
 574                         this->surface_set_layout(state.main, surface_id);
 575                         if (state.sub != *surface_id)
 576                         {
 577                             if (state.sub != -1)
 578                             {
 579                                 this->deactivate(state.sub);
 580                             }
 581                         }
 582                         state = nl;
 583
 584                         // Commit for configuration and visibility(0)
 585                         this->layout_commit();
 586
 587                         std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 588                         std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 589                         compositor::rect area_rect_main = this->area_info[state.main];
 590                         compositor::rect area_rect_sub = this->area_info[*surface_id];
 591                         this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 592                                             area_rect_main.x, area_rect_main.y,
 593                                             area_rect_main.w, area_rect_main.h);
 594                         this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 595                                             area_rect_sub.x, area_rect_sub.y,
 596                                             area_rect_sub.w, area_rect_sub.h);
 597                         this->enqueue_flushdraw(state.main);
 598                         this->enqueue_flushdraw(state.sub);
 599                     });
 600             }
 601             else
 602             {
 603                 this->try_layout(
 604                     state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 605                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 606
 607                         this->surface_set_layout(*surface_id);
 608                         if (state.main != *surface_id)
 609                         {
 610                             this->deactivate(state.main);
 611                         }
 612                         if (state.sub != -1)
 613                         {
 614                             if (state.sub != *surface_id)
 615                             {
 616                                 this->deactivate(state.sub);
 617                             }
 618                         }
 619                         state = nl;
 620
 621                         // Commit for configuraton and visibility(0)
 622                         this->layout_commit();
 623
 624                         std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 625                         compositor::rect area_rect = this->area_info[*surface_id];
 626                         this->emit_syncdraw(drawing_name, str_area.c_str(),
 627                                             area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 628                         this->enqueue_flushdraw(state.main);
 629                     });
 630             }
 631         }
 632     }
 633 }
 634
 635 const char* App::check_surface_exist(unsigned req_num, const char* drawing_name)
 636 {
 637     auto const &surface_id = this->lookup_id(drawing_name);
 638     if (!surface_id)
 639     {
 640         //reply("Surface does not exist");
 641         return "Surface does not exist";
 642     }
 643
 644     if (!this->controller->surface_exists(*surface_id))
 645     {
 646         //reply("Surface does not exist in controller!");
 647         return "Surface does not exist in controller!";
 648     }
 649
 650     auto layer_id = this->layers.get_layer_id(*surface_id);
 651
 652     if (!layer_id)
 653     {
 654         //reply("Surface is not on any layer!");
 655         return "Surface is not on any layer!";
 656     }
 657
 658     auto o_state = *this->layers.get_layout_state(*surface_id);
 659
 660     if (o_state == nullptr)
 661     {
 662         //reply("Could not find layer for surface");
 663         return "Could not find layer for surface";
 664     }
 665
 666     HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 667     return nullptr;
 668     //reply(nullptr);
 669 }
 670
 671 void App::api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply)
 672 {
 673     ST();
 674
 675     /*
 676    * Check Phase
 677    */
 678
 679     std::string id = appid;
 680     std::string role = drawing_name;
 681     std::string area = drawing_area;
 682
 683     if(!app_list.contains(id)){
 684         reply("app doesn't request 'requestSurface' yet");
 685         return;
 686     }
 687
 688     auto client = app_list.lookUpClient(id);
 689
 690     /*
 691    * Queueing Phase
 692    */
 693     unsigned current = app_list.currentSequenceNumber();
 694     unsigned requested_num = app_list.getSequenceNumber(id);
 695     if (requested_num != 0)
 696     {
 697         HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", id.c_str(), role.c_str(), area.c_str());
 698         reply("already requested");
 699         return;
 700     }
 701
 702     WMRequest req = WMRequest(id, role, area, Task::TASK_ALLOCATE);
 703     unsigned new_req = app_list.addAllocateRequest(req);
 704     app_list.req_dump();
 705
 706     HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", id.c_str(), role.c_str(), area.c_str());
 707
 708     reply(nullptr);
 709     if (new_req != current)
 710     {
 711         // Add request, then invoked after the previous task is finished
 712         HMI_SEQ_DEBUG(new_req, "request is accepted");
 713         return;
 714     }
 715
 716     /*
 717     * Do allocate tasks
 718     */
 719     bool ret = this->do_allocate_window_resource(new_req);
 720
 721     if(!ret){
 722         HMI_SEQ_ERROR(new_req, "failed to do_allocate_window_resource");
 723         //this->emit_error()
 724     }
 725 }
 726
 727 void App::api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply)
 728 {
 729     ST();
 730
 731     /*
 732    * Check Phase
 733    */
 734     std::string id = appid;
 735     std::string role = drawing_name;
 736     std::string area = "";    //drawing_area;
 737
 738     if(!app_list.contains(id)){
 739         reply("app doesn't request 'requestSurface' yet");
 740         return;
 741     }
 742     auto client = app_list.lookUpClient(id);
 743
 744     /*
 745    * Queueing Phase
 746    */
 747     unsigned current = app_list.currentSequenceNumber();
 748     unsigned requested_num = app_list.getSequenceNumber(id);
 749     if (requested_num != 0)
 750     {
 751         HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", id.c_str(), role.c_str(), area.c_str());
 752         reply("already requested");
 753         return;
 754     }
 755
 756     WMRequest req = WMRequest(id, role, area, Task::TASK_RELEASE);
 757     unsigned new_req = app_list.addAllocateRequest(req);
 758     app_list.req_dump();
 759
 760     HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", id.c_str(), role.c_str(), area.c_str());
 761
 762     if (new_req != current)
 763     {
 764         // Add request, then invoked after the previous task is finished
 765         HMI_SEQ_DEBUG(new_req, "request is accepted");
 766         reply(nullptr);
 767         return;
 768     }
 769
 770     /*
 771     * Do allocate tasks
 772     */
 773     //bool ret = this->do_allocate_window_resource(new_req);
 774
 775     auto const &surface_id = this->lookup_id(drawing_name);
 776     if (!surface_id)
 777     {
 778         reply("Surface does not exist");
 779         return;
 780     }
 781
 782     if (*surface_id == this->layers.main_surface)
 783     {
 784         reply("Cannot deactivate main_surface");
 785         return;
 786     }
 787
 788     auto o_state = *this->layers.get_layout_state(*surface_id);
 789
 790     if (o_state == nullptr)
 791     {
 792         reply("Could not find layer for surface");
 793         return;
 794     }
 795
 796     struct LayoutState &state = *o_state;
 797
 798     if (state.main == -1)
 799     {
 800         reply("No surface active");
 801         return;
 802     }
 803
 804     // Check against main_surface, main_surface_name is the configuration item.
 805     if (*surface_id == this->layers.main_surface)
 806     {
 807         HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 808         reply(nullptr);
 809         return;
 810     }
 811     if ((state.main == *surface_id) && (state.sub == *surface_id))
 812     {
 813         reply("Surface is not active");
 814         return;
 815     }
 816     reply(nullptr);
 817
 818     if (state.main == *surface_id)
 819     {
 820         if (state.sub != -1)
 821         {
 822             this->try_layout(
 823                 state, LayoutState{state.sub, -1}, [&](LayoutState const &nl) {
 824                     std::string sub = std::move(*this->lookup_name(state.sub));
 825
 826                     this->deactivate(*surface_id);
 827                     this->surface_set_layout(state.sub);
 828                     state = nl;
 829
 830                     this->layout_commit();
 831                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 832                     compositor::rect area_rect = this->area_info[state.sub];
 833                     this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 834                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 835                     this->enqueue_flushdraw(state.sub);
 836                 });
 837         }
 838         else
 839         {
 840             this->try_layout(state, LayoutState{-1, -1}, [&](LayoutState const &nl) {
 841                 this->deactivate(*surface_id);
 842                 state = nl;
 843                 this->layout_commit();
 844             });
 845         }
 846     }
 847     else if (state.sub == *surface_id)
 848     {
 849         this->try_layout(
 850             state, LayoutState{state.main, -1}, [&](LayoutState const &nl) {
 851                 std::string main = std::move(*this->lookup_name(state.main));
 852
 853                 this->deactivate(*surface_id);
 854                 this->surface_set_layout(state.main);
 855                 state = nl;
 856
 857                 this->layout_commit();
 858                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 859                 compositor::rect area_rect = this->area_info[state.main];
 860                 this->emit_syncdraw(main.c_str(), str_area.c_str(),
 861                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 862                 this->enqueue_flushdraw(state.main);
 863             });
 864     }
 865 }
 866
 867 void App::enqueue_flushdraw(int surface_id)
 868 {
 869     this->check_flushdraw(surface_id);
 870     HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 871     this->pending_end_draw.push_back(surface_id);
 872 }
 873
 874 void App::check_flushdraw(int surface_id)
 875 {
 876     auto i = std::find(std::begin(this->pending_end_draw),
 877                        std::end(this->pending_end_draw), surface_id);
 878     if (i != std::end(this->pending_end_draw))
 879     {
 880         auto n = this->lookup_name(surface_id);
 881         HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 882                   n ? n->c_str() : "unknown-name", surface_id);
 883         std::swap(this->pending_end_draw[std::distance(
 884                       std::begin(this->pending_end_draw), i)],
 885                   this->pending_end_draw.back());
 886         this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 887     }
 888 }
 889
 890 void App::lm_enddraw(const char* drawing_name){
 891     HMI_DEBUG("wm", "end draw %s", drawing_name);
 892     for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++)
 893     {
 894         auto n = this->lookup_name(this->pending_end_draw[i]);
 895         if (n && *n == drawing_name)
 896         {
 897             std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 898             this->pending_end_draw.resize(iend - 1);
 899             this->activate(this->pending_end_draw[i]);
 900             this->emit_flushdraw(drawing_name);
 901         }
 902     }
 903 }
 904
 905 void App::do_enddraw(unsigned request_seq)
 906 {
 907     // get actions
 908     auto actions = app_list.getActions(request_seq);
 909     HMI_SEQ_INFO(request_seq, "do endDraw");
 910
 911     for(const auto& act : actions){
 912         HMI_SEQ_DEBUG(request_seq, "visible %s", act.role.c_str());
 913         this->lm_enddraw(act.role.c_str());
 914     }
 915
 916     HMI_SEQ_INFO(request_seq, "emit flushDraw");
 917 /*     do
 918     {
 919         // emit flush Draw
 920         //emitFlushDrawToAll(&app_list, request_seq);
 921         // emit status change event
 922     } while (!app_list.requestFinished());*/
 923 }
 924
 925 void App::process_request()
 926 {
 927     unsigned req = app_list.currentSequenceNumber();
 928     HMI_SEQ_DEBUG(req, "Do next request");
 929     do_allocate_window_resource(req);
 930 }
 931
 932 void App::api_enddraw(char const *appid, char const *drawing_name)
 933 {
 934     std::string id(appid);
 935     std::string role(drawing_name);
 936     unsigned current_seq = app_list.currentSequenceNumber();
 937     bool result = app_list.setEndDrawFinished(current_seq, id, role);
 938
 939     if (!result)
 940     {
 941         HMI_ERROR("wm", "%s doesn't have Window Resource", id.c_str());
 942         return;
 943     }
 944
 945     if (app_list.endDrawFullfilled(current_seq))
 946     {
 947         // do task for endDraw
 948         //this->stop_timer();
 949         this->do_enddraw(current_seq);
 950
 951         app_list.removeRequest(current_seq);
 952         HMI_SEQ_INFO(current_seq, "Finish request");
 953         app_list.next();
 954         if (app_list.haveRequest())
 955         {
 956             this->process_request();
 957         }
 958     }
 959     else
 960     {
 961         HMI_SEQ_INFO(current_seq, "Wait other App call endDraw");
 962         return;
 963     }
 964 }
 965
 966 void App::api_ping() { this->dispatch_pending_events(); }
 967
 968 void App::send_event(char const *evname, char const *label)
 969 {
 970     HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 971
 972     json_object *j = json_object_new_object();
 973     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 974
 975     int ret = afb_event_push(this->map_afb_event[evname], j);
 976     if (ret != 0)
 977     {
 978         HMI_DEBUG("wm", "afb_event_push failed: %m");
 979     }
 980 }
 981
 982 void App::send_event(char const *evname, char const *label, char const *area,
 983                      int x, int y, int w, int h)
 984 {
 985     HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 986               __func__, evname, label, area, x, y, w, h);
 987
 988     json_object *j_rect = json_object_new_object();
 989     json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
 990     json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
 991     json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
 992     json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 993
 994     json_object *j = json_object_new_object();
 995     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 996     json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 997     json_object_object_add(j, kKeyDrawingRect, j_rect);
 998
 999     int ret = afb_event_push(this->map_afb_event[evname], j);
1000     if (ret != 0)
1001     {
1002         HMI_DEBUG("wm", "afb_event_push failed: %m");
1003     }
1004 }
1005
1006 /**
1007  * proxied events
1008  */
1009 void App::surface_created(uint32_t surface_id)
1010 {
1011     auto layer_id = this->layers.get_layer_id(surface_id);
1012     if (!layer_id)
1013     {
1014         HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
1015                   surface_id);
1016         return;
1017     }
1018
1019     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
1020
1021     this->controller->layers[*layer_id]->add_surface(surface_id);
1022     this->layout_commit();
1023     // activate the main_surface right away
1024     /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
1025       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
1026
1027       this->api_activate_surface(
1028          this->lookup_name(surface_id).value_or("unknown-name").c_str());
1029    }*/
1030 }
1031
1032 void App::surface_removed(uint32_t surface_id)
1033 {
1034     HMI_DEBUG("wm", "surface_id is %u", surface_id);
1035
1036     // We cannot normally deactivate the main_surface, so be explicit
1037     // about it:
1038     if (int(surface_id) == this->layers.main_surface)
1039     {
1040         this->deactivate_main_surface();
1041     }
1042     else
1043     {
1044         auto drawing_name = this->lookup_name(surface_id);
1045         if (drawing_name)
1046         {
1047             std::string appid = "";
1048             /* auto = lookUpClient(surface_id);
1049          appid = client->appID();
1050
1051          */
1052             this->api_deactivate_surface(appid.c_str(), drawing_name->c_str(), [](const char *) {});
1053         }
1054     }
1055
1056     this->id_alloc.remove_id(surface_id);
1057     this->layers.remove_surface(surface_id);
1058 }
1059
1060 void App::emit_activated(char const *label)
1061 {
1062     this->send_event(kListEventName[Event_Active], label);
1063 }
1064
1065 void App::emit_deactivated(char const *label)
1066 {
1067     this->send_event(kListEventName[Event_Inactive], label);
1068 }
1069
1070 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
1071 {
1072     this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
1073 }
1074
1075 void App::emit_flushdraw(char const *label)
1076 {
1077     this->send_event(kListEventName[Event_FlushDraw], label);
1078 }
1079
1080 void App::emit_visible(char const *label, bool is_visible)
1081 {
1082     this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
1083 }
1084
1085 void App::emit_invisible(char const *label)
1086 {
1087     return emit_visible(label, false);
1088 }
1089
1090 void App::emit_visible(char const *label) { return emit_visible(label, true); }
1091
1092 result<int> App::api_request_surface(char const *appid, char const *drawing_name)
1093 {
1094     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1095     if (!lid)
1096     {
1097         /**
1098        * register drawing_name as fallback and make it displayed.
1099        */
1100         lid = this->layers.get_layer_id(std::string("Fallback"));
1101         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1102         if (!lid)
1103         {
1104             return Err<int>("Drawing name does not match any role, Fallback is disabled");
1105         }
1106     }
1107
1108     auto rname = this->lookup_id(drawing_name);
1109     if (!rname)
1110     {
1111         // name does not exist yet, allocate surface id...
1112         auto id = int(this->id_alloc.generate_id(drawing_name));
1113         this->layers.add_surface(id, *lid);
1114
1115         // set the main_surface[_name] here and now
1116         if (!this->layers.main_surface_name.empty() &&
1117             this->layers.main_surface_name == drawing_name)
1118         {
1119             this->layers.main_surface = id;
1120             HMI_DEBUG("wm", "Set main_surface id to %u", id);
1121         }
1122
1123         // add client into the db
1124         std::string appid_str(appid);
1125         std::string role(drawing_name);
1126         app_list.addClient(appid_str, role);
1127
1128         return Ok<int>(id);
1129     }
1130
1131     // Check currently registered drawing names if it is already there.
1132     return Err<int>("Surface already present");
1133 }
1134
1135 char const *App::api_request_surface(char const *appid, char const *drawing_name,
1136                                      char const *ivi_id)
1137 {
1138     ST();
1139
1140     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1141     unsigned sid = std::stol(ivi_id);
1142
1143     if (!lid)
1144     {
1145         /**
1146        * register drawing_name as fallback and make it displayed.
1147        */
1148         lid = this->layers.get_layer_id(std::string("Fallback"));
1149         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1150         if (!lid)
1151         {
1152             return "Drawing name does not match any role, Fallback is disabled";
1153         }
1154     }
1155
1156     auto rname = this->lookup_id(drawing_name);
1157
1158     if (rname)
1159     {
1160         return "Surface already present";
1161     }
1162
1163     // register pair drawing_name and ivi_id
1164     this->id_alloc.register_name_id(drawing_name, sid);
1165     this->layers.add_surface(sid, *lid);
1166
1167     // this surface is already created
1168     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
1169
1170     this->controller->layers[*lid]->add_surface(sid);
1171     this->layout_commit();
1172
1173     return nullptr;
1174 }
1175
1176 result<json_object *> App::api_get_display_info()
1177 {
1178     // Check controller
1179     if (!this->controller)
1180     {
1181         return Err<json_object *>("ivi_controller global not available");
1182     }
1183
1184     // Set display info
1185     compositor::size o_size = this->controller->output_size;
1186     compositor::size p_size = this->controller->physical_size;
1187
1188     json_object *object = json_object_new_object();
1189     json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
1190     json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
1191     json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
1192     json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
1193
1194     return Ok<json_object *>(object);
1195 }
1196
1197 result<json_object *> App::api_get_area_info(char const *drawing_name)
1198 {
1199     HMI_DEBUG("wm", "called");
1200
1201     // Check drawing name, surface/layer id
1202     auto const &surface_id = this->lookup_id(drawing_name);
1203     if (!surface_id)
1204     {
1205         return Err<json_object *>("Surface does not exist");
1206     }
1207
1208     if (!this->controller->surface_exists(*surface_id))
1209     {
1210         return Err<json_object *>("Surface does not exist in controller!");
1211     }
1212
1213     auto layer_id = this->layers.get_layer_id(*surface_id);
1214     if (!layer_id)
1215     {
1216         return Err<json_object *>("Surface is not on any layer!");
1217     }
1218
1219     auto o_state = *this->layers.get_layout_state(*surface_id);
1220     if (o_state == nullptr)
1221     {
1222         return Err<json_object *>("Could not find layer for surface");
1223     }
1224
1225     struct LayoutState &state = *o_state;
1226     if ((state.main != *surface_id) && (state.sub != *surface_id))
1227     {
1228         return Err<json_object *>("Surface is inactive");
1229     }
1230
1231     // Set area rectangle
1232     compositor::rect area_info = this->area_info[*surface_id];
1233     json_object *object = json_object_new_object();
1234     json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
1235     json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
1236     json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
1237     json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
1238
1239     return Ok<json_object *>(object);
1240 }
1241
1242 void App::activate(int id)
1243 {
1244     auto ip = this->controller->sprops.find(id);
1245     if (ip != this->controller->sprops.end())
1246     {
1247         this->controller->surfaces[id]->set_visibility(1);
1248         char const *label =
1249             this->lookup_name(id).value_or("unknown-name").c_str();
1250
1251         // FOR CES DEMO >>>
1252         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
1253         {
1254             for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
1255             {
1256                 if (id == *i)
1257                 {
1258                     // Remove id
1259                     this->surface_bg.erase(i);
1260
1261                     // Remove from BG layer (999)
1262                     HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
1263                     this->controller->layers[999]->remove_surface(id);
1264
1265                     // Add to FG layer (1001)
1266                     HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
1267                     this->controller->layers[1001]->add_surface(id);
1268
1269                     for (int j : this->surface_bg)
1270                     {
1271                         HMI_DEBUG("wm", "Stored id:%d", j);
1272                     }
1273                     break;
1274                 }
1275             }
1276         }
1277         // <<< FOR CES DEMO
1278         this->layout_commit();
1279
1280         this->emit_visible(label);
1281         this->emit_activated(label);
1282     }
1283 }
1284
1285 void App::deactivate(int id)
1286 {
1287     auto ip = this->controller->sprops.find(id);
1288     if (ip != this->controller->sprops.end())
1289     {
1290         char const *label =
1291             this->lookup_name(id).value_or("unknown-name").c_str();
1292
1293         // FOR CES DEMO >>>
1294         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
1295         {
1296
1297             // Store id
1298             this->surface_bg.push_back(id);
1299
1300             // Remove from FG layer (1001)
1301             HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1302             this->controller->layers[1001]->remove_surface(id);
1303
1304             // Add to BG layer (999)
1305             HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1306             this->controller->layers[999]->add_surface(id);
1307
1308             for (int j : surface_bg)
1309             {
1310                 HMI_DEBUG("wm", "Stored id:%d", j);
1311             }
1312         }
1313         else
1314         {
1315             this->controller->surfaces[id]->set_visibility(0);
1316         }
1317         // <<< FOR CES DEMO
1318
1319         this->emit_deactivated(label);
1320         this->emit_invisible(label);
1321     }
1322 }
1323
1324 void App::deactivate_main_surface()
1325 {
1326     this->layers.main_surface = -1;
1327     std::string appid = "HomeScreen";
1328     this->api_deactivate_surface(appid.c_str(), this->layers.main_surface_name.c_str(), [](const char *) {});
1329 }
1330
1331 bool App::can_split(struct LayoutState const &state, int new_id)
1332 {
1333     if (state.main != -1 && state.main != new_id)
1334     {
1335         auto new_id_layer = this->layers.get_layer_id(new_id).value();
1336         auto current_id_layer = this->layers.get_layer_id(state.main).value();
1337
1338         // surfaces are on separate layers, don't bother.
1339         if (new_id_layer != current_id_layer)
1340         {
1341             return false;
1342         }
1343
1344         std::string const &new_id_str = this->lookup_name(new_id).value();
1345         std::string const &cur_id_str = this->lookup_name(state.main).value();
1346
1347         auto const &layer = this->layers.get_layer(new_id_layer);
1348
1349         HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1350
1351         if (layer->layouts.empty())
1352         {
1353             return false;
1354         }
1355
1356         for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
1357         {
1358             HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1359             auto rem = std::regex(i->main_match);
1360             if (std::regex_match(cur_id_str, rem))
1361             {
1362                 // build the second one only if the first already matched
1363                 HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1364                 auto res = std::regex(i->sub_match);
1365                 if (std::regex_match(new_id_str, res))
1366                 {
1367                     HMI_DEBUG("wm", "layout matched!");
1368                     return true;
1369                 }
1370             }
1371         }
1372     }
1373
1374     return false;
1375 }
1376
1377 void App::try_layout(struct LayoutState & /*state*/,
1378                      struct LayoutState const &new_layout,
1379                      std::function<void(LayoutState const &nl)> apply)
1380 {
1381     if (this->policy.layout_is_valid(new_layout))
1382     {
1383         apply(new_layout);
1384     }
1385 }
1386
1387 /**
1388  * controller_hooks
1389  */
1390 void controller_hooks::surface_created(uint32_t surface_id)
1391 {
1392     this->app->surface_created(surface_id);
1393 }
1394
1395 void controller_hooks::surface_removed(uint32_t surface_id)
1396 {
1397     this->app->surface_removed(surface_id);
1398 }
1399
1400 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1401                                           uint32_t /*v*/) {}
1402
1403 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1404                                                      uint32_t /*x*/,
1405                                                      uint32_t /*y*/,
1406                                                      uint32_t /*w*/,
1407                                                      uint32_t /*h*/) {}
1408
1409 } // namespace wm