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