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     this->layers.setupArea(o->width, o->height);
 265
 266     return 0;
 267 }
 268
 269 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id)
 270 {
 271     if (!this->controller->surface_exists(surface_id))
 272     {
 273         HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 274         return;
 275     }
 276
 277     auto o_layer_id = this->layers.get_layer_id(surface_id);
 278
 279     if (!o_layer_id)
 280     {
 281         HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 282         return;
 283     }
 284
 285     uint32_t layer_id = *o_layer_id;
 286
 287     auto const &layer = this->layers.get_layer(layer_id);
 288     auto rect = layer.value().rect;
 289     auto &s = this->controller->surfaces[surface_id];
 290
 291     int x = rect.x;
 292     int y = rect.y;
 293     int w = rect.w;
 294     int h = rect.h;
 295
 296     // less-than-0 values refer to MAX + 1 - $VALUE
 297     // e.g. MAX is either screen width or height
 298     if (w < 0)
 299     {
 300         w = this->controller->output_size.w + 1 + w;
 301     }
 302     if (h < 0)
 303     {
 304         h = this->controller->output_size.h + 1 + h;
 305     }
 306
 307     if (sub_surface_id)
 308     {
 309         if (o_layer_id != this->layers.get_layer_id(*sub_surface_id))
 310         {
 311             HMI_ERROR("wm",
 312                       "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 313                       surface_id, *sub_surface_id);
 314             return;
 315         }
 316
 317         int x_off = 0;
 318         int y_off = 0;
 319
 320         // split along major axis
 321         if (w > h)
 322         {
 323             w /= 2;
 324             x_off = w;
 325         }
 326         else
 327         {
 328             h /= 2;
 329             y_off = h;
 330         }
 331
 332         auto &ss = this->controller->surfaces[*sub_surface_id];
 333
 334         HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 335                   *sub_surface_id, layer_id);
 336
 337         // set destination to the display rectangle
 338         ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 339
 340         this->area_info[*sub_surface_id].x = x;
 341         this->area_info[*sub_surface_id].y = y;
 342         this->area_info[*sub_surface_id].w = w;
 343         this->area_info[*sub_surface_id].h = h;
 344     }
 345
 346     HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 347               layer_id);
 348
 349     // set destination to the display rectangle
 350     s->set_destination_rectangle(x, y, w, h);
 351
 352     // update area information
 353     this->area_info[surface_id].x = x;
 354     this->area_info[surface_id].y = y;
 355     this->area_info[surface_id].w = w;
 356     this->area_info[surface_id].h = h;
 357
 358     HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 359               surface_id, layer_id, x, y, w, h);
 360 }
 361
 362 void App::layout_commit()
 363 {
 364     this->controller->commit_changes();
 365     this->display->flush();
 366 }
 367
 368 void App::api_activate_surface(char const *drawing_name, char const *drawing_area, const reply_func &reply)
 369 {
 370     ST();
 371
 372     auto const &surface_id = this->lookup_id(drawing_name);
 373
 374     if (!surface_id)
 375     {
 376         reply("Surface does not exist");
 377         return;
 378     }
 379
 380     if (!this->controller->surface_exists(*surface_id))
 381     {
 382         reply("Surface does not exist in controller!");
 383         return;
 384     }
 385
 386     auto layer_id = this->layers.get_layer_id(*surface_id);
 387
 388     if (!layer_id)
 389     {
 390         reply("Surface is not on any layer!");
 391         return;
 392     }
 393
 394     auto o_state = *this->layers.get_layout_state(*surface_id);
 395
 396     if (o_state == nullptr)
 397     {
 398         reply("Could not find layer for surface");
 399         return;
 400     }
 401
 402     HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 403     reply(nullptr);
 404
 405     struct LayoutState &state = *o_state;
 406
 407     // disable layers that are above our current layer
 408     for (auto const &l : this->layers.mapping)
 409     {
 410         if (l.second.layer_id <= *layer_id)
 411         {
 412             continue;
 413         }
 414
 415         bool flush = false;
 416         if (l.second.state.main != -1)
 417         {
 418             this->deactivate(l.second.state.main);
 419             l.second.state.main = -1;
 420             flush = true;
 421         }
 422
 423         if (l.second.state.sub != -1)
 424         {
 425             this->deactivate(l.second.state.sub);
 426             l.second.state.sub = -1;
 427             flush = true;
 428         }
 429
 430         if (flush)
 431         {
 432             this->layout_commit();
 433         }
 434     }
 435
 436     auto layer = this->layers.get_layer(*layer_id);
 437
 438     if (state.main == -1)
 439     {
 440         this->try_layout(
 441             state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 442                 HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 443                 this->surface_set_layout(*surface_id);
 444                 state = nl;
 445
 446                 // Commit for configuraton
 447                 this->layout_commit();
 448
 449                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 450                 compositor::rect area_rect = this->area_info[*surface_id];
 451                 this->emit_syncdraw(drawing_name, str_area.c_str(),
 452                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 453                 this->enqueue_flushdraw(state.main);
 454             });
 455     }
 456     else
 457     {
 458         if (0 == strcmp(drawing_name, "HomeScreen"))
 459         {
 460             this->try_layout(
 461                 state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 462                     HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 463                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 464                     compositor::rect area_rect = this->area_info[*surface_id];
 465                     this->emit_syncdraw(drawing_name, str_area.c_str(),
 466                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 467                     this->enqueue_flushdraw(state.main);
 468                 });
 469         }
 470         else
 471         {
 472             bool can_split = this->can_split(state, *surface_id);
 473
 474             if (can_split)
 475             {
 476                 this->try_layout(
 477                     state,
 478                     LayoutState{state.main, *surface_id},
 479                     [&](LayoutState const &nl) {
 480                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 481                         std::string main =
 482                             std::move(*this->lookup_name(state.main));
 483
 484                         this->surface_set_layout(state.main, surface_id);
 485                         if (state.sub != *surface_id)
 486                         {
 487                             if (state.sub != -1)
 488                             {
 489                                 this->deactivate(state.sub);
 490                             }
 491                         }
 492                         state = nl;
 493
 494                         // Commit for configuration and visibility(0)
 495                         this->layout_commit();
 496
 497                         std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 498                         std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 499                         compositor::rect area_rect_main = this->area_info[state.main];
 500                         compositor::rect area_rect_sub = this->area_info[*surface_id];
 501                         this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 502                                             area_rect_main.x, area_rect_main.y,
 503                                             area_rect_main.w, area_rect_main.h);
 504                         this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 505                                             area_rect_sub.x, area_rect_sub.y,
 506                                             area_rect_sub.w, area_rect_sub.h);
 507                         this->enqueue_flushdraw(state.main);
 508                         this->enqueue_flushdraw(state.sub);
 509                     });
 510             }
 511             else
 512             {
 513                 this->try_layout(
 514                     state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 515                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 516
 517                         this->surface_set_layout(*surface_id);
 518                         if (state.main != *surface_id)
 519                         {
 520                             this->deactivate(state.main);
 521                         }
 522                         if (state.sub != -1)
 523                         {
 524                             if (state.sub != *surface_id)
 525                             {
 526                                 this->deactivate(state.sub);
 527                             }
 528                         }
 529                         state = nl;
 530
 531                         // Commit for configuraton and visibility(0)
 532                         this->layout_commit();
 533
 534                         std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 535                         compositor::rect area_rect = this->area_info[*surface_id];
 536                         this->emit_syncdraw(drawing_name, str_area.c_str(),
 537                                             area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 538                         this->enqueue_flushdraw(state.main);
 539                     });
 540             }
 541         }
 542     }
 543 }
 544
 545 void App::api_deactivate_surface(char const *drawing_name, const reply_func &reply)
 546 {
 547     ST();
 548     auto const &surface_id = this->lookup_id(drawing_name);
 549
 550     if (!surface_id)
 551     {
 552         reply("Surface does not exist");
 553         return;
 554     }
 555
 556     if (*surface_id == this->layers.main_surface)
 557     {
 558         reply("Cannot deactivate main_surface");
 559         return;
 560     }
 561
 562     auto o_state = *this->layers.get_layout_state(*surface_id);
 563
 564     if (o_state == nullptr)
 565     {
 566         reply("Could not find layer for surface");
 567         return;
 568     }
 569
 570     struct LayoutState &state = *o_state;
 571
 572     if (state.main == -1)
 573     {
 574         reply("No surface active");
 575         return;
 576     }
 577
 578     // Check against main_surface, main_surface_name is the configuration item.
 579     if (*surface_id == this->layers.main_surface)
 580     {
 581         HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 582         reply(nullptr);
 583         return;
 584     }
 585     if ((state.main == *surface_id) && (state.sub == *surface_id))
 586     {
 587         reply("Surface is not active");
 588         return;
 589     }
 590     reply(nullptr);
 591
 592     if (state.main == *surface_id)
 593     {
 594         if (state.sub != -1)
 595         {
 596             this->try_layout(
 597                 state, LayoutState{state.sub, -1}, [&](LayoutState const &nl) {
 598                     std::string sub = std::move(*this->lookup_name(state.sub));
 599
 600                     this->deactivate(*surface_id);
 601                     this->surface_set_layout(state.sub);
 602                     state = nl;
 603
 604                     this->layout_commit();
 605                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 606                     compositor::rect area_rect = this->area_info[state.sub];
 607                     this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 608                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 609                     this->enqueue_flushdraw(state.sub);
 610                 });
 611         }
 612         else
 613         {
 614             this->try_layout(state, LayoutState{-1, -1}, [&](LayoutState const &nl) {
 615                 this->deactivate(*surface_id);
 616                 state = nl;
 617                 this->layout_commit();
 618             });
 619         }
 620     }
 621     else if (state.sub == *surface_id)
 622     {
 623         this->try_layout(
 624             state, LayoutState{state.main, -1}, [&](LayoutState const &nl) {
 625                 std::string main = std::move(*this->lookup_name(state.main));
 626
 627                 this->deactivate(*surface_id);
 628                 this->surface_set_layout(state.main);
 629                 state = nl;
 630
 631                 this->layout_commit();
 632                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 633                 compositor::rect area_rect = this->area_info[state.main];
 634                 this->emit_syncdraw(main.c_str(), str_area.c_str(),
 635                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 636                 this->enqueue_flushdraw(state.main);
 637             });
 638     }
 639 }
 640
 641 void App::enqueue_flushdraw(int surface_id)
 642 {
 643     this->check_flushdraw(surface_id);
 644     HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 645     this->pending_end_draw.push_back(surface_id);
 646 }
 647
 648 void App::check_flushdraw(int surface_id)
 649 {
 650     auto i = std::find(std::begin(this->pending_end_draw),
 651                        std::end(this->pending_end_draw), surface_id);
 652     if (i != std::end(this->pending_end_draw))
 653     {
 654         auto n = this->lookup_name(surface_id);
 655         HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 656                   n ? n->c_str() : "unknown-name", surface_id);
 657         std::swap(this->pending_end_draw[std::distance(
 658                       std::begin(this->pending_end_draw), i)],
 659                   this->pending_end_draw.back());
 660         this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 661     }
 662 }
 663
 664 void App::api_enddraw(char const *drawing_name)
 665 {
 666     for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++)
 667     {
 668         auto n = this->lookup_name(this->pending_end_draw[i]);
 669         if (n && *n == drawing_name)
 670         {
 671             std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 672             this->pending_end_draw.resize(iend - 1);
 673             this->activate(this->pending_end_draw[i]);
 674             this->emit_flushdraw(drawing_name);
 675         }
 676     }
 677 }
 678
 679 void App::api_ping() { this->dispatch_pending_events(); }
 680
 681 void App::send_event(char const *evname, char const *label)
 682 {
 683     HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 684
 685     json_object *j = json_object_new_object();
 686     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 687
 688     int ret = afb_event_push(this->map_afb_event[evname], j);
 689     if (ret != 0)
 690     {
 691         HMI_DEBUG("wm", "afb_event_push failed: %m");
 692     }
 693 }
 694
 695 void App::send_event(char const *evname, char const *label, char const *area,
 696                      int x, int y, int w, int h)
 697 {
 698     HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 699               __func__, evname, label, area, x, y, w, h);
 700
 701     json_object *j_rect = json_object_new_object();
 702     json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
 703     json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
 704     json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
 705     json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 706
 707     json_object *j = json_object_new_object();
 708     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 709     json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 710     json_object_object_add(j, kKeyDrawingRect, j_rect);
 711
 712     int ret = afb_event_push(this->map_afb_event[evname], j);
 713     if (ret != 0)
 714     {
 715         HMI_DEBUG("wm", "afb_event_push failed: %m");
 716     }
 717 }
 718
 719 /**
 720  * proxied events
 721  */
 722 void App::surface_created(uint32_t surface_id)
 723 {
 724     auto layer_id = this->layers.get_layer_id(surface_id);
 725     if (!layer_id)
 726     {
 727         HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 728                   surface_id);
 729         return;
 730     }
 731
 732     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 733
 734     this->controller->layers[*layer_id]->add_surface(surface_id);
 735     this->layout_commit();
 736 }
 737
 738 void App::surface_removed(uint32_t surface_id)
 739 {
 740     HMI_DEBUG("wm", "surface_id is %u", surface_id);
 741 }
 742
 743 void App::emit_activated(char const *label)
 744 {
 745     this->send_event(kListEventName[Event_Active], label);
 746 }
 747
 748 void App::emit_deactivated(char const *label)
 749 {
 750     this->send_event(kListEventName[Event_Inactive], label);
 751 }
 752
 753 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
 754 {
 755     this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 756 }
 757
 758 void App::emit_flushdraw(char const *label)
 759 {
 760     this->send_event(kListEventName[Event_FlushDraw], label);
 761 }
 762
 763 void App::emit_visible(char const *label, bool is_visible)
 764 {
 765     this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 766 }
 767
 768 void App::emit_invisible(char const *label)
 769 {
 770     return emit_visible(label, false);
 771 }
 772
 773 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 774
 775 result<int> App::api_request_surface(char const *drawing_name)
 776 {
 777     auto lid = this->layers.get_layer_id(std::string(drawing_name));
 778     if (!lid)
 779     {
 780         /**
 781        * register drawing_name as fallback and make it displayed.
 782        */
 783         lid = this->layers.get_layer_id(std::string("Fallback"));
 784         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 785         if (!lid)
 786         {
 787             return Err<int>("Drawing name does not match any role, Fallback is disabled");
 788         }
 789     }
 790
 791     auto rname = this->lookup_id(drawing_name);
 792     if (!rname)
 793     {
 794         // name does not exist yet, allocate surface id...
 795         auto id = int(this->id_alloc.generate_id(drawing_name));
 796         this->layers.add_surface(id, *lid);
 797
 798         // set the main_surface[_name] here and now
 799         if (!this->layers.main_surface_name.empty() &&
 800             this->layers.main_surface_name == drawing_name)
 801         {
 802             this->layers.main_surface = id;
 803             HMI_DEBUG("wm", "Set main_surface id to %u", id);
 804         }
 805
 806         return Ok<int>(id);
 807     }
 808
 809     // Check currently registered drawing names if it is already there.
 810     return Err<int>("Surface already present");
 811 }
 812
 813 char const *App::api_request_surface(char const *drawing_name,
 814                                      char const *ivi_id)
 815 {
 816     ST();
 817
 818     auto lid = this->layers.get_layer_id(std::string(drawing_name));
 819     unsigned sid = std::stol(ivi_id);
 820
 821     if (!lid)
 822     {
 823         /**
 824        * register drawing_name as fallback and make it displayed.
 825        */
 826         lid = this->layers.get_layer_id(std::string("Fallback"));
 827         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 828         if (!lid)
 829         {
 830             return "Drawing name does not match any role, Fallback is disabled";
 831         }
 832     }
 833
 834     auto rname = this->lookup_id(drawing_name);
 835
 836     if (rname)
 837     {
 838         return "Surface already present";
 839     }
 840
 841     // register pair drawing_name and ivi_id
 842     this->id_alloc.register_name_id(drawing_name, sid);
 843     this->layers.add_surface(sid, *lid);
 844
 845     // this surface is already created
 846     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 847
 848     this->controller->layers[*lid]->add_surface(sid);
 849     this->layout_commit();
 850
 851     return nullptr;
 852 }
 853
 854 result<json_object *> App::api_get_display_info()
 855 {
 856     // Check controller
 857     if (!this->controller)
 858     {
 859         return Err<json_object *>("ivi_controller global not available");
 860     }
 861
 862     // Set display info
 863     compositor::size o_size = this->controller->output_size;
 864     compositor::size p_size = this->controller->physical_size;
 865
 866     json_object *object = json_object_new_object();
 867     json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
 868     json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 869     json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
 870     json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
 871
 872     return Ok<json_object *>(object);
 873 }
 874
 875 result<json_object *> App::api_get_area_info(char const *drawing_name)
 876 {
 877     HMI_DEBUG("wm", "called");
 878
 879     // Check drawing name, surface/layer id
 880     auto const &surface_id = this->lookup_id(drawing_name);
 881     if (!surface_id)
 882     {
 883         return Err<json_object *>("Surface does not exist");
 884     }
 885
 886     if (!this->controller->surface_exists(*surface_id))
 887     {
 888         return Err<json_object *>("Surface does not exist in controller!");
 889     }
 890
 891     auto layer_id = this->layers.get_layer_id(*surface_id);
 892     if (!layer_id)
 893     {
 894         return Err<json_object *>("Surface is not on any layer!");
 895     }
 896
 897     auto o_state = *this->layers.get_layout_state(*surface_id);
 898     if (o_state == nullptr)
 899     {
 900         return Err<json_object *>("Could not find layer for surface");
 901     }
 902
 903     struct LayoutState &state = *o_state;
 904     if ((state.main != *surface_id) && (state.sub != *surface_id))
 905     {
 906         return Err<json_object *>("Surface is inactive");
 907     }
 908
 909     // Set area rectangle
 910     compositor::rect area_info = this->area_info[*surface_id];
 911     json_object *object = json_object_new_object();
 912     json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
 913     json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
 914     json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
 915     json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 916
 917     return Ok<json_object *>(object);
 918 }
 919
 920 void App::activate(int id)
 921 {
 922     auto ip = this->controller->sprops.find(id);
 923     if (ip != this->controller->sprops.end())
 924     {
 925         this->controller->surfaces[id]->set_visibility(1);
 926         char const *label =
 927             this->lookup_name(id).value_or("unknown-name").c_str();
 928
 929         // FOR CES DEMO >>>
 930         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
 931         {
 932             for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
 933             {
 934                 if (id == *i)
 935                 {
 936                     // Remove id
 937                     this->surface_bg.erase(i);
 938
 939                     // Remove from BG layer (999)
 940                     HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 941                     this->controller->layers[999]->remove_surface(id);
 942
 943                     // Add to FG layer (1001)
 944                     HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 945                     this->controller->layers[1001]->add_surface(id);
 946
 947                     for (int j : this->surface_bg)
 948                     {
 949                         HMI_DEBUG("wm", "Stored id:%d", j);
 950                     }
 951                     break;
 952                 }
 953             }
 954         }
 955         // <<< FOR CES DEMO
 956         this->layout_commit();
 957
 958         this->emit_visible(label);
 959         this->emit_activated(label);
 960     }
 961 }
 962
 963 void App::deactivate(int id)
 964 {
 965     auto ip = this->controller->sprops.find(id);
 966     if (ip != this->controller->sprops.end())
 967     {
 968         char const *label =
 969             this->lookup_name(id).value_or("unknown-name").c_str();
 970
 971         // FOR CES DEMO >>>
 972         if ((0 == strcmp(label, "Radio"))       ||
 973             (0 == strcmp(label, "MediaPlayer")) ||
 974             (0 == strcmp(label, "Music"))       ||
 975             (0 == strcmp(label, "Navigation")))
 976         {
 977
 978             // Store id
 979             this->surface_bg.push_back(id);
 980
 981             // Remove from FG layer (1001)
 982             HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 983             this->controller->layers[1001]->remove_surface(id);
 984
 985             // Add to BG layer (999)
 986             HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 987             this->controller->layers[999]->add_surface(id);
 988
 989             for (int j : surface_bg)
 990             {
 991                 HMI_DEBUG("wm", "Stored id:%d", j);
 992             }
 993         }
 994         else
 995         {
 996             this->controller->surfaces[id]->set_visibility(0);
 997         }
 998         // <<< FOR CES DEMO
 999
1000         this->emit_deactivated(label);
1001         this->emit_invisible(label);
1002     }
1003 }
1004
1005 bool App::can_split(struct LayoutState const &state, int new_id)
1006 {
1007     if (state.main != -1 && state.main != new_id)
1008     {
1009         auto new_id_layer = this->layers.get_layer_id(new_id).value();
1010         auto current_id_layer = this->layers.get_layer_id(state.main).value();
1011
1012         // surfaces are on separate layers, don't bother.
1013         if (new_id_layer != current_id_layer)
1014         {
1015             return false;
1016         }
1017
1018         std::string const &new_id_str = this->lookup_name(new_id).value();
1019         std::string const &cur_id_str = this->lookup_name(state.main).value();
1020
1021         auto const &layer = this->layers.get_layer(new_id_layer);
1022
1023         HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1024
1025         if (layer->layouts.empty())
1026         {
1027             return false;
1028         }
1029
1030         for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
1031         {
1032             HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1033             auto rem = std::regex(i->main_match);
1034             if (std::regex_match(cur_id_str, rem))
1035             {
1036                 // build the second one only if the first already matched
1037                 HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1038                 auto res = std::regex(i->sub_match);
1039                 if (std::regex_match(new_id_str, res))
1040                 {
1041                     HMI_DEBUG("wm", "layout matched!");
1042                     return true;
1043                 }
1044             }
1045         }
1046     }
1047
1048     return false;
1049 }
1050
1051 void App::try_layout(struct LayoutState & /*state*/,
1052                      struct LayoutState const &new_layout,
1053                      std::function<void(LayoutState const &nl)> apply)
1054 {
1055     apply(new_layout);
1056 }
1057
1058 /**
1059  * controller_hooks
1060  */
1061 void controller_hooks::surface_created(uint32_t surface_id)
1062 {
1063     this->app->surface_created(surface_id);
1064 }
1065
1066 void controller_hooks::surface_removed(uint32_t surface_id)
1067 {
1068     this->app->surface_removed(surface_id);
1069 }
1070
1071 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1072                                           uint32_t /*v*/) {}
1073
1074 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1075                                                      uint32_t /*x*/,
1076                                                      uint32_t /*y*/,
1077                                                      uint32_t /*w*/,
1078                                                      uint32_t /*h*/) {}
1079
1080 } // namespace wm