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 <fstream>
  18 #include <regex>
  19
  20 #include "app.hpp"
  21 #include "../include/json.hpp"
  22
  23
  24 namespace wm {
  25
  26 /* DrawingArea name used by "{layout}.{area}" */
  27 const char kNameLayoutNormal[] = "normal";
  28 const char kNameLayoutSplit[]  = "split";
  29 const char kNameAreaFull[]     = "full";
  30 const char kNameAreaMain[]     = "main";
  31 const char kNameAreaSub[]      = "sub";
  32
  33 /* Key for json obejct */
  34 const char kKeyDrawingName[] = "drawing_name";
  35 const char kKeyDrawingArea[] = "drawing_area";
  36 const char kKeyDrawingRect[] = "drawing_rect";
  37 const char kKeyX[]           = "x";
  38 const char kKeyY[]           = "y";
  39 const char kKeyWidth[]       = "width";
  40 const char kKeyHeight[]      = "height";
  41 const char kKeyWidthPixel[]  = "width_pixel";
  42 const char kKeyHeightPixel[] = "height_pixel";
  43 const char kKeyWidthMm[]     = "width_mm";
  44 const char kKeyHeightMm[]    = "height_mm";
  45
  46 namespace
  47 {
  48
  49 using nlohmann::json;
  50
  51 result<json> file_to_json(char const *filename)
  52 {
  53     json j;
  54     std::ifstream i(filename);
  55     if (i.fail())
  56     {
  57         HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  58         j = default_layers_json;
  59     }
  60     else
  61     {
  62         i >> j;
  63     }
  64
  65     return Ok(j);
  66 }
  67
  68 struct result<layer_map> load_layer_map(char const *filename)
  69 {
  70     HMI_DEBUG("wm", "loading IDs from %s", filename);
  71
  72     auto j = file_to_json(filename);
  73     if (j.is_err())
  74     {
  75         return Err<layer_map>(j.unwrap_err());
  76     }
  77     json jids = j.unwrap();
  78
  79     return to_layer_map(jids);
  80 }
  81
  82 } // namespace
  83
  84 /**
  85  * App Impl
  86  */
  87 App::App(wl::display *d)
  88     : chooks{this},
  89       display{d},
  90       controller{},
  91       outputs(),
  92       layers(),
  93       id_alloc{},
  94       pending_events(false)
  95 {
  96     char const *path_layers_json = getenv("AFM_APP_INSTALL_DIR");
  97     std::string path;
  98     if (!path_layers_json)
  99     {
 100         HMI_ERROR("wm", "AFM_APP_INSTALL_DIR is not defined");
 101         path = std::string(path_layers_json);
 102     }
 103     else
 104     {
 105         path = std::string(path_layers_json) + std::string("/etc/layers.json");
 106     }
 107
 108     try
 109     {
 110         {
 111             auto l = load_layer_map(path.c_str());
 112             if (l.is_ok())
 113             {
 114                 this->layers = l.unwrap();
 115             }
 116             else
 117             {
 118                 HMI_ERROR("wm", "%s", l.err().value());
 119             }
 120         }
 121     }
 122     catch (std::exception &e)
 123     {
 124         HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 125     }
 126 }
 127
 128 int App::init()
 129 {
 130     if (!this->display->ok())
 131     {
 132         return -1;
 133     }
 134
 135     if (this->layers.mapping.empty())
 136     {
 137         HMI_ERROR("wm", "No surface -> layer mapping loaded");
 138         return -1;
 139     }
 140
 141     // Make afb event
 142     for (int i = Event_Val_Min; i <= Event_Val_Max; i++)
 143     {
 144         map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 145     }
 146
 147     this->display->add_global_handler(
 148         "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 149             this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 150         });
 151
 152     this->display->add_global_handler(
 153         "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 154             this->controller =
 155                 std::make_unique<struct compositor::controller>(r, name, v);
 156
 157             // Init controller hooks
 158             this->controller->chooks = &this->chooks;
 159
 160             // This protocol needs the output, so lets just add our mapping here...
 161             this->controller->add_proxy_to_id_mapping(
 162                 this->outputs.back()->proxy.get(),
 163                 wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 164                     this->outputs.back()->proxy.get())));
 165
 166             // Create screen
 167             this->controller->create_screen(this->outputs.back()->proxy.get());
 168
 169             // Set display to controller
 170             this->controller->display = this->display;
 171         });
 172
 173     // First level objects
 174     this->display->roundtrip();
 175     // Second level objects
 176     this->display->roundtrip();
 177     // Third level objects
 178     this->display->roundtrip();
 179
 180     return init_layers();
 181 }
 182
 183 int App::dispatch_pending_events()
 184 {
 185     if (this->pop_pending_events())
 186     {
 187         this->display->dispatch_pending();
 188         return 0;
 189     }
 190     return -1;
 191 }
 192
 193 bool App::pop_pending_events()
 194 {
 195     bool x{true};
 196     return this->pending_events.compare_exchange_strong(
 197         x, false, std::memory_order_consume);
 198 }
 199
 200 void App::set_pending_events()
 201 {
 202     this->pending_events.store(true, std::memory_order_release);
 203 }
 204
 205 optional<int> App::lookup_id(char const *name)
 206 {
 207     return this->id_alloc.lookup(std::string(name));
 208 }
 209 optional<std::string> App::lookup_name(int id)
 210 {
 211     return this->id_alloc.lookup(id);
 212 }
 213
 214 /**
 215  * init_layers()
 216  */
 217 int App::init_layers()
 218 {
 219     if (!this->controller)
 220     {
 221         HMI_ERROR("wm", "ivi_controller global not available");
 222         return -1;
 223     }
 224
 225     if (this->outputs.empty())
 226     {
 227         HMI_ERROR("wm", "no output was set up!");
 228         return -1;
 229     }
 230
 231     auto &c = this->controller;
 232
 233     auto &o = this->outputs.front();
 234     auto &s = c->screens.begin()->second;
 235     auto &layers = c->layers;
 236
 237     // Write output dimensions to ivi controller...
 238     c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 239     c->physical_size = compositor::size{uint32_t(o->physical_width),
 240                                         uint32_t(o->physical_height)};
 241
 242     // Clear scene
 243     layers.clear();
 244
 245     // Clear screen
 246     s->clear();
 247
 248     // Quick and dirty setup of layers
 249     for (auto const &i : this->layers.mapping)
 250     {
 251         c->layer_create(i.second.layer_id, o->width, o->height);
 252         auto &l = layers[i.second.layer_id];
 253         l->set_destination_rectangle(0, 0, o->width, o->height);
 254         l->set_visibility(1);
 255         HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 256                   i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 257     }
 258
 259     // Add layers to screen
 260     s->set_render_order(this->layers.layers);
 261
 262     this->layout_commit();
 263
 264     return 0;
 265 }
 266
 267 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id)
 268 {
 269     if (!this->controller->surface_exists(surface_id))
 270     {
 271         HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 272         return;
 273     }
 274
 275     auto o_layer_id = this->layers.get_layer_id(surface_id);
 276
 277     if (!o_layer_id)
 278     {
 279         HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 280         return;
 281     }
 282
 283     uint32_t layer_id = *o_layer_id;
 284
 285     auto const &layer = this->layers.get_layer(layer_id);
 286     auto rect = layer.value().rect;
 287     auto &s = this->controller->surfaces[surface_id];
 288
 289     int x = rect.x;
 290     int y = rect.y;
 291     int w = rect.w;
 292     int h = rect.h;
 293
 294     // less-than-0 values refer to MAX + 1 - $VALUE
 295     // e.g. MAX is either screen width or height
 296     if (w < 0)
 297     {
 298         w = this->controller->output_size.w + 1 + w;
 299     }
 300     if (h < 0)
 301     {
 302         h = this->controller->output_size.h + 1 + h;
 303     }
 304
 305     if (sub_surface_id)
 306     {
 307         if (o_layer_id != this->layers.get_layer_id(*sub_surface_id))
 308         {
 309             HMI_ERROR("wm",
 310                       "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 311                       surface_id, *sub_surface_id);
 312             return;
 313         }
 314
 315         int x_off = 0;
 316         int y_off = 0;
 317
 318         // split along major axis
 319         if (w > h)
 320         {
 321             w /= 2;
 322             x_off = w;
 323         }
 324         else
 325         {
 326             h /= 2;
 327             y_off = h;
 328         }
 329
 330         auto &ss = this->controller->surfaces[*sub_surface_id];
 331
 332         HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 333                   *sub_surface_id, layer_id);
 334
 335         // set destination to the display rectangle
 336         ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 337
 338         this->area_info[*sub_surface_id].x = x;
 339         this->area_info[*sub_surface_id].y = y;
 340         this->area_info[*sub_surface_id].w = w;
 341         this->area_info[*sub_surface_id].h = h;
 342     }
 343
 344     HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 345               layer_id);
 346
 347     // set destination to the display rectangle
 348     s->set_destination_rectangle(x, y, w, h);
 349
 350     // update area information
 351     this->area_info[surface_id].x = x;
 352     this->area_info[surface_id].y = y;
 353     this->area_info[surface_id].w = w;
 354     this->area_info[surface_id].h = h;
 355
 356     HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 357               surface_id, layer_id, x, y, w, h);
 358 }
 359
 360 void App::layout_commit()
 361 {
 362     this->controller->commit_changes();
 363     this->display->flush();
 364 }
 365
 366 void App::api_activate_surface(char const *drawing_name, char const *drawing_area, const reply_func &reply)
 367 {
 368     ST();
 369
 370     auto const &surface_id = this->lookup_id(drawing_name);
 371
 372     if (!surface_id)
 373     {
 374         reply("Surface does not exist");
 375         return;
 376     }
 377
 378     if (!this->controller->surface_exists(*surface_id))
 379     {
 380         reply("Surface does not exist in controller!");
 381         return;
 382     }
 383
 384     auto layer_id = this->layers.get_layer_id(*surface_id);
 385
 386     if (!layer_id)
 387     {
 388         reply("Surface is not on any layer!");
 389         return;
 390     }
 391
 392     auto o_state = *this->layers.get_layout_state(*surface_id);
 393
 394     if (o_state == nullptr)
 395     {
 396         reply("Could not find layer for surface");
 397         return;
 398     }
 399
 400     HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 401     reply(nullptr);
 402
 403     struct LayoutState &state = *o_state;
 404
 405     // disable layers that are above our current layer
 406     for (auto const &l : this->layers.mapping)
 407     {
 408         if (l.second.layer_id <= *layer_id)
 409         {
 410             continue;
 411         }
 412
 413         bool flush = false;
 414         if (l.second.state.main != -1)
 415         {
 416             this->deactivate(l.second.state.main);
 417             l.second.state.main = -1;
 418             flush = true;
 419         }
 420
 421         if (l.second.state.sub != -1)
 422         {
 423             this->deactivate(l.second.state.sub);
 424             l.second.state.sub = -1;
 425             flush = true;
 426         }
 427
 428         if (flush)
 429         {
 430             this->layout_commit();
 431         }
 432     }
 433
 434     auto layer = this->layers.get_layer(*layer_id);
 435
 436     if (state.main == -1)
 437     {
 438         this->try_layout(
 439             state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 440                 HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 441                 this->surface_set_layout(*surface_id);
 442                 state = nl;
 443
 444                 // Commit for configuraton
 445                 this->layout_commit();
 446
 447                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 448                 compositor::rect area_rect = this->area_info[*surface_id];
 449                 this->emit_syncdraw(drawing_name, str_area.c_str(),
 450                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 451                 this->enqueue_flushdraw(state.main);
 452             });
 453     }
 454     else
 455     {
 456         if (0 == strcmp(drawing_name, "HomeScreen"))
 457         {
 458             this->try_layout(
 459                 state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 460                     HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 461                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 462                     compositor::rect area_rect = this->area_info[*surface_id];
 463                     this->emit_syncdraw(drawing_name, str_area.c_str(),
 464                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 465                     this->enqueue_flushdraw(state.main);
 466                 });
 467         }
 468         else
 469         {
 470             bool can_split = this->can_split(state, *surface_id);
 471
 472             if (can_split)
 473             {
 474                 this->try_layout(
 475                     state,
 476                     LayoutState{state.main, *surface_id},
 477                     [&](LayoutState const &nl) {
 478                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 479                         std::string main =
 480                             std::move(*this->lookup_name(state.main));
 481
 482                         this->surface_set_layout(state.main, surface_id);
 483                         if (state.sub != *surface_id)
 484                         {
 485                             if (state.sub != -1)
 486                             {
 487                                 this->deactivate(state.sub);
 488                             }
 489                         }
 490                         state = nl;
 491
 492                         // Commit for configuration and visibility(0)
 493                         this->layout_commit();
 494
 495                         std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 496                         std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 497                         compositor::rect area_rect_main = this->area_info[state.main];
 498                         compositor::rect area_rect_sub = this->area_info[*surface_id];
 499                         this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 500                                             area_rect_main.x, area_rect_main.y,
 501                                             area_rect_main.w, area_rect_main.h);
 502                         this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 503                                             area_rect_sub.x, area_rect_sub.y,
 504                                             area_rect_sub.w, area_rect_sub.h);
 505                         this->enqueue_flushdraw(state.main);
 506                         this->enqueue_flushdraw(state.sub);
 507                     });
 508             }
 509             else
 510             {
 511                 this->try_layout(
 512                     state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 513                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 514
 515                         this->surface_set_layout(*surface_id);
 516                         if (state.main != *surface_id)
 517                         {
 518                             this->deactivate(state.main);
 519                         }
 520                         if (state.sub != -1)
 521                         {
 522                             if (state.sub != *surface_id)
 523                             {
 524                                 this->deactivate(state.sub);
 525                             }
 526                         }
 527                         state = nl;
 528
 529                         // Commit for configuraton and visibility(0)
 530                         this->layout_commit();
 531
 532                         std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 533                         compositor::rect area_rect = this->area_info[*surface_id];
 534                         this->emit_syncdraw(drawing_name, str_area.c_str(),
 535                                             area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 536                         this->enqueue_flushdraw(state.main);
 537                     });
 538             }
 539         }
 540     }
 541 }
 542
 543 void App::api_deactivate_surface(char const *drawing_name, const reply_func &reply)
 544 {
 545     ST();
 546     auto const &surface_id = this->lookup_id(drawing_name);
 547
 548     if (!surface_id)
 549     {
 550         reply("Surface does not exist");
 551         return;
 552     }
 553
 554     if (*surface_id == this->layers.main_surface)
 555     {
 556         reply("Cannot deactivate main_surface");
 557         return;
 558     }
 559
 560     auto o_state = *this->layers.get_layout_state(*surface_id);
 561
 562     if (o_state == nullptr)
 563     {
 564         reply("Could not find layer for surface");
 565         return;
 566     }
 567
 568     struct LayoutState &state = *o_state;
 569
 570     if (state.main == -1)
 571     {
 572         reply("No surface active");
 573         return;
 574     }
 575
 576     // Check against main_surface, main_surface_name is the configuration item.
 577     if (*surface_id == this->layers.main_surface)
 578     {
 579         HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 580         reply(nullptr);
 581         return;
 582     }
 583     if ((state.main == *surface_id) && (state.sub == *surface_id))
 584     {
 585         reply("Surface is not active");
 586         return;
 587     }
 588     reply(nullptr);
 589
 590     if (state.main == *surface_id)
 591     {
 592         if (state.sub != -1)
 593         {
 594             this->try_layout(
 595                 state, LayoutState{state.sub, -1}, [&](LayoutState const &nl) {
 596                     std::string sub = std::move(*this->lookup_name(state.sub));
 597
 598                     this->deactivate(*surface_id);
 599                     this->surface_set_layout(state.sub);
 600                     state = nl;
 601
 602                     this->layout_commit();
 603                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 604                     compositor::rect area_rect = this->area_info[state.sub];
 605                     this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 606                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 607                     this->enqueue_flushdraw(state.sub);
 608                 });
 609         }
 610         else
 611         {
 612             this->try_layout(state, LayoutState{-1, -1}, [&](LayoutState const &nl) {
 613                 this->deactivate(*surface_id);
 614                 state = nl;
 615                 this->layout_commit();
 616             });
 617         }
 618     }
 619     else if (state.sub == *surface_id)
 620     {
 621         this->try_layout(
 622             state, LayoutState{state.main, -1}, [&](LayoutState const &nl) {
 623                 std::string main = std::move(*this->lookup_name(state.main));
 624
 625                 this->deactivate(*surface_id);
 626                 this->surface_set_layout(state.main);
 627                 state = nl;
 628
 629                 this->layout_commit();
 630                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 631                 compositor::rect area_rect = this->area_info[state.main];
 632                 this->emit_syncdraw(main.c_str(), str_area.c_str(),
 633                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 634                 this->enqueue_flushdraw(state.main);
 635             });
 636     }
 637 }
 638
 639 void App::enqueue_flushdraw(int surface_id)
 640 {
 641     this->check_flushdraw(surface_id);
 642     HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 643     this->pending_end_draw.push_back(surface_id);
 644 }
 645
 646 void App::check_flushdraw(int surface_id)
 647 {
 648     auto i = std::find(std::begin(this->pending_end_draw),
 649                        std::end(this->pending_end_draw), surface_id);
 650     if (i != std::end(this->pending_end_draw))
 651     {
 652         auto n = this->lookup_name(surface_id);
 653         HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 654                   n ? n->c_str() : "unknown-name", surface_id);
 655         std::swap(this->pending_end_draw[std::distance(
 656                       std::begin(this->pending_end_draw), i)],
 657                   this->pending_end_draw.back());
 658         this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 659     }
 660 }
 661
 662 void App::api_enddraw(char const *drawing_name)
 663 {
 664     for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++)
 665     {
 666         auto n = this->lookup_name(this->pending_end_draw[i]);
 667         if (n && *n == drawing_name)
 668         {
 669             std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 670             this->pending_end_draw.resize(iend - 1);
 671             this->activate(this->pending_end_draw[i]);
 672             this->emit_flushdraw(drawing_name);
 673         }
 674     }
 675 }
 676
 677 void App::api_ping() { this->dispatch_pending_events(); }
 678
 679 void App::send_event(char const *evname, char const *label)
 680 {
 681     HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 682
 683     json_object *j = json_object_new_object();
 684     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 685
 686     int ret = afb_event_push(this->map_afb_event[evname], j);
 687     if (ret != 0)
 688     {
 689         HMI_DEBUG("wm", "afb_event_push failed: %m");
 690     }
 691 }
 692
 693 void App::send_event(char const *evname, char const *label, char const *area,
 694                      int x, int y, int w, int h)
 695 {
 696     HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 697               __func__, evname, label, area, x, y, w, h);
 698
 699     json_object *j_rect = json_object_new_object();
 700     json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
 701     json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
 702     json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
 703     json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 704
 705     json_object *j = json_object_new_object();
 706     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 707     json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 708     json_object_object_add(j, kKeyDrawingRect, j_rect);
 709
 710     int ret = afb_event_push(this->map_afb_event[evname], j);
 711     if (ret != 0)
 712     {
 713         HMI_DEBUG("wm", "afb_event_push failed: %m");
 714     }
 715 }
 716
 717 /**
 718  * proxied events
 719  */
 720 void App::surface_created(uint32_t surface_id)
 721 {
 722     auto layer_id = this->layers.get_layer_id(surface_id);
 723     if (!layer_id)
 724     {
 725         HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 726                   surface_id);
 727         return;
 728     }
 729
 730     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 731
 732     this->controller->layers[*layer_id]->add_surface(surface_id);
 733     this->layout_commit();
 734     // activate the main_surface right away
 735     /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 736       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 737
 738       this->api_activate_surface(
 739          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 740    }*/
 741 }
 742
 743 void App::surface_removed(uint32_t surface_id)
 744 {
 745     HMI_DEBUG("wm", "surface_id is %u", surface_id);
 746
 747     // We cannot normally deactivate the main_surface, so be explicit
 748     // about it:
 749     if (int(surface_id) == this->layers.main_surface)
 750     {
 751         this->deactivate_main_surface();
 752     }
 753     else
 754     {
 755         auto drawing_name = this->lookup_name(surface_id);
 756         if (drawing_name)
 757         {
 758             this->api_deactivate_surface(drawing_name->c_str(), [](const char *) {});
 759         }
 760     }
 761
 762     this->id_alloc.remove_id(surface_id);
 763     this->layers.remove_surface(surface_id);
 764 }
 765
 766 void App::emit_activated(char const *label)
 767 {
 768     this->send_event(kListEventName[Event_Active], label);
 769 }
 770
 771 void App::emit_deactivated(char const *label)
 772 {
 773     this->send_event(kListEventName[Event_Inactive], label);
 774 }
 775
 776 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
 777 {
 778     this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 779 }
 780
 781 void App::emit_flushdraw(char const *label)
 782 {
 783     this->send_event(kListEventName[Event_FlushDraw], label);
 784 }
 785
 786 void App::emit_visible(char const *label, bool is_visible)
 787 {
 788     this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 789 }
 790
 791 void App::emit_invisible(char const *label)
 792 {
 793     return emit_visible(label, false);
 794 }
 795
 796 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 797
 798 result<int> App::api_request_surface(char const *drawing_name)
 799 {
 800     auto lid = this->layers.get_layer_id(std::string(drawing_name));
 801     if (!lid)
 802     {
 803         /**
 804        * register drawing_name as fallback and make it displayed.
 805        */
 806         lid = this->layers.get_layer_id(std::string("Fallback"));
 807         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 808         if (!lid)
 809         {
 810             return Err<int>("Drawing name does not match any role, Fallback is disabled");
 811         }
 812     }
 813
 814     auto rname = this->lookup_id(drawing_name);
 815     if (!rname)
 816     {
 817         // name does not exist yet, allocate surface id...
 818         auto id = int(this->id_alloc.generate_id(drawing_name));
 819         this->layers.add_surface(id, *lid);
 820
 821         // set the main_surface[_name] here and now
 822         if (!this->layers.main_surface_name.empty() &&
 823             this->layers.main_surface_name == drawing_name)
 824         {
 825             this->layers.main_surface = id;
 826             HMI_DEBUG("wm", "Set main_surface id to %u", id);
 827         }
 828
 829         return Ok<int>(id);
 830     }
 831
 832     // Check currently registered drawing names if it is already there.
 833     return Err<int>("Surface already present");
 834 }
 835
 836 char const *App::api_request_surface(char const *drawing_name,
 837                                      char const *ivi_id)
 838 {
 839     ST();
 840
 841     auto lid = this->layers.get_layer_id(std::string(drawing_name));
 842     unsigned sid = std::stol(ivi_id);
 843
 844     if (!lid)
 845     {
 846         /**
 847        * register drawing_name as fallback and make it displayed.
 848        */
 849         lid = this->layers.get_layer_id(std::string("Fallback"));
 850         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 851         if (!lid)
 852         {
 853             return "Drawing name does not match any role, Fallback is disabled";
 854         }
 855     }
 856
 857     auto rname = this->lookup_id(drawing_name);
 858
 859     if (rname)
 860     {
 861         return "Surface already present";
 862     }
 863
 864     // register pair drawing_name and ivi_id
 865     this->id_alloc.register_name_id(drawing_name, sid);
 866     this->layers.add_surface(sid, *lid);
 867
 868     // this surface is already created
 869     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 870
 871     this->controller->layers[*lid]->add_surface(sid);
 872     this->layout_commit();
 873
 874     return nullptr;
 875 }
 876
 877 result<json_object *> App::api_get_display_info()
 878 {
 879     // Check controller
 880     if (!this->controller)
 881     {
 882         return Err<json_object *>("ivi_controller global not available");
 883     }
 884
 885     // Set display info
 886     compositor::size o_size = this->controller->output_size;
 887     compositor::size p_size = this->controller->physical_size;
 888
 889     json_object *object = json_object_new_object();
 890     json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
 891     json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 892     json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
 893     json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
 894
 895     return Ok<json_object *>(object);
 896 }
 897
 898 result<json_object *> App::api_get_area_info(char const *drawing_name)
 899 {
 900     HMI_DEBUG("wm", "called");
 901
 902     // Check drawing name, surface/layer id
 903     auto const &surface_id = this->lookup_id(drawing_name);
 904     if (!surface_id)
 905     {
 906         return Err<json_object *>("Surface does not exist");
 907     }
 908
 909     if (!this->controller->surface_exists(*surface_id))
 910     {
 911         return Err<json_object *>("Surface does not exist in controller!");
 912     }
 913
 914     auto layer_id = this->layers.get_layer_id(*surface_id);
 915     if (!layer_id)
 916     {
 917         return Err<json_object *>("Surface is not on any layer!");
 918     }
 919
 920     auto o_state = *this->layers.get_layout_state(*surface_id);
 921     if (o_state == nullptr)
 922     {
 923         return Err<json_object *>("Could not find layer for surface");
 924     }
 925
 926     struct LayoutState &state = *o_state;
 927     if ((state.main != *surface_id) && (state.sub != *surface_id))
 928     {
 929         return Err<json_object *>("Surface is inactive");
 930     }
 931
 932     // Set area rectangle
 933     compositor::rect area_info = this->area_info[*surface_id];
 934     json_object *object = json_object_new_object();
 935     json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
 936     json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
 937     json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
 938     json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 939
 940     return Ok<json_object *>(object);
 941 }
 942
 943 void App::activate(int id)
 944 {
 945     auto ip = this->controller->sprops.find(id);
 946     if (ip != this->controller->sprops.end())
 947     {
 948         this->controller->surfaces[id]->set_visibility(1);
 949         char const *label =
 950             this->lookup_name(id).value_or("unknown-name").c_str();
 951
 952         // FOR CES DEMO >>>
 953         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
 954         {
 955             for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
 956             {
 957                 if (id == *i)
 958                 {
 959                     // Remove id
 960                     this->surface_bg.erase(i);
 961
 962                     // Remove from BG layer (999)
 963                     HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 964                     this->controller->layers[999]->remove_surface(id);
 965
 966                     // Add to FG layer (1001)
 967                     HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 968                     this->controller->layers[1001]->add_surface(id);
 969
 970                     for (int j : this->surface_bg)
 971                     {
 972                         HMI_DEBUG("wm", "Stored id:%d", j);
 973                     }
 974                     break;
 975                 }
 976             }
 977         }
 978         // <<< FOR CES DEMO
 979         this->layout_commit();
 980
 981         this->emit_visible(label);
 982         this->emit_activated(label);
 983     }
 984 }
 985
 986 void App::deactivate(int id)
 987 {
 988     auto ip = this->controller->sprops.find(id);
 989     if (ip != this->controller->sprops.end())
 990     {
 991         char const *label =
 992             this->lookup_name(id).value_or("unknown-name").c_str();
 993
 994         // FOR CES DEMO >>>
 995         if ((0 == strcmp(label, "Radio"))       ||
 996             (0 == strcmp(label, "MediaPlayer")) ||
 997             (0 == strcmp(label, "Music"))       ||
 998             (0 == strcmp(label, "Navigation")))
 999         {
1000
1001             // Store id
1002             this->surface_bg.push_back(id);
1003
1004             // Remove from FG layer (1001)
1005             HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1006             this->controller->layers[1001]->remove_surface(id);
1007
1008             // Add to BG layer (999)
1009             HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1010             this->controller->layers[999]->add_surface(id);
1011
1012             for (int j : surface_bg)
1013             {
1014                 HMI_DEBUG("wm", "Stored id:%d", j);
1015             }
1016         }
1017         else
1018         {
1019             this->controller->surfaces[id]->set_visibility(0);
1020         }
1021         // <<< FOR CES DEMO
1022
1023         this->emit_deactivated(label);
1024         this->emit_invisible(label);
1025     }
1026 }
1027
1028 void App::deactivate_main_surface()
1029 {
1030     this->layers.main_surface = -1;
1031     this->api_deactivate_surface(this->layers.main_surface_name.c_str(), [](const char *) {});
1032 }
1033
1034 bool App::can_split(struct LayoutState const &state, int new_id)
1035 {
1036     if (state.main != -1 && state.main != new_id)
1037     {
1038         auto new_id_layer = this->layers.get_layer_id(new_id).value();
1039         auto current_id_layer = this->layers.get_layer_id(state.main).value();
1040
1041         // surfaces are on separate layers, don't bother.
1042         if (new_id_layer != current_id_layer)
1043         {
1044             return false;
1045         }
1046
1047         std::string const &new_id_str = this->lookup_name(new_id).value();
1048         std::string const &cur_id_str = this->lookup_name(state.main).value();
1049
1050         auto const &layer = this->layers.get_layer(new_id_layer);
1051
1052         HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1053
1054         if (layer->layouts.empty())
1055         {
1056             return false;
1057         }
1058
1059         for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
1060         {
1061             HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1062             auto rem = std::regex(i->main_match);
1063             if (std::regex_match(cur_id_str, rem))
1064             {
1065                 // build the second one only if the first already matched
1066                 HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1067                 auto res = std::regex(i->sub_match);
1068                 if (std::regex_match(new_id_str, res))
1069                 {
1070                     HMI_DEBUG("wm", "layout matched!");
1071                     return true;
1072                 }
1073             }
1074         }
1075     }
1076
1077     return false;
1078 }
1079
1080 void App::try_layout(struct LayoutState & /*state*/,
1081                      struct LayoutState const &new_layout,
1082                      std::function<void(LayoutState const &nl)> apply)
1083 {
1084     apply(new_layout);
1085 }
1086
1087 /**
1088  * controller_hooks
1089  */
1090 void controller_hooks::surface_created(uint32_t surface_id)
1091 {
1092     this->app->surface_created(surface_id);
1093 }
1094
1095 void controller_hooks::surface_removed(uint32_t surface_id)
1096 {
1097     this->app->surface_removed(surface_id);
1098 }
1099
1100 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1101                                           uint32_t /*v*/) {}
1102
1103 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1104                                                      uint32_t /*x*/,
1105                                                      uint32_t /*y*/,
1106                                                      uint32_t /*w*/,
1107                                                      uint32_t /*h*/) {}
1108
1109 } // namespace wm