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 #include <string>
  38
  39
  40 namespace wm {
  41
  42 /* DrawingArea name used by "{layout}.{area}" */
  43 const char kNameLayoutNormal[] = "normal";
  44 const char kNameLayoutSplit[]  = "split";
  45 const char kNameAreaFull[]     = "full";
  46 const char kNameAreaMain[]     = "main";
  47 const char kNameAreaSub[]      = "sub";
  48
  49 /* Key for json obejct */
  50 const char kKeyDrawingName[] = "drawing_name";
  51 const char kKeyDrawingArea[] = "drawing_area";
  52 const char kKeyDrawingRect[] = "drawing_rect";
  53 const char kKeyX[]           = "x";
  54 const char kKeyY[]           = "y";
  55 const char kKeyWidth[]       = "width";
  56 const char kKeyHeight[]      = "height";
  57 const char kKeyWidthPixel[]  = "width_pixel";
  58 const char kKeyHeightPixel[] = "height_pixel";
  59 const char kKeyWidthMm[]     = "width_mm";
  60 const char kKeyHeightMm[]    = "height_mm";
  61
  62
  63 namespace {
  64
  65 using nlohmann::json;
  66
  67 result<json> file_to_json(char const *filename) {
  68    json j;
  69    std::ifstream i(filename);
  70    if (i.fail()) {
  71       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  72       j = default_layers_json;
  73    }
  74    else {
  75       i >> j;
  76    }
  77
  78    return Ok(j);
  79 }
  80
  81 struct result<layer_map> load_layer_map(char const *filename) {
  82    HMI_DEBUG("wm", "loading IDs from %s", filename);
  83
  84    auto j = file_to_json(filename);
  85    if (j.is_err()) {
  86       return Err<layer_map>(j.unwrap_err());
  87    }
  88    json jids = j.unwrap();
  89
  90    return to_layer_map(jids);
  91 }
  92
  93 }  // namespace
  94
  95
  96 /**
  97  * App Impl
  98  */
  99 App::App(wl::display *d)
 100    : chooks{this},
 101      display{d},
 102      controller{},
 103      outputs(),
 104      config(),
 105      layers(),
 106      id_alloc{},
 107      pending_events(false),
 108      policy{} {
 109    try {
 110       {
 111          auto l = load_layer_map(
 112             this->config.get_string("layers.json").value().c_str());
 113          if (l.is_ok()) {
 114             this->layers = l.unwrap();
 115          } else {
 116             HMI_ERROR("wm", "%s", l.err().value());
 117          }
 118       }
 119    } catch (std::exception &e) {
 120       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 121    }
 122 }
 123
 124 int App::init() {
 125    if (!this->display->ok()) {
 126       return -1;
 127    }
 128
 129    if (this->layers.mapping.empty()) {
 130       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 131       return -1;
 132    }
 133
 134 #if 1 // @@@@@
 135    // Load app.db
 136    this->loadAppDb();
 137 #endif
 138
 139    // Initialize PolicyManager
 140    this->pm_.initialize();
 141
 142    // Initialize LayoutManager
 143    this->lm_.initialize();
 144
 145    // Make afb event
 146    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 147       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 148    }
 149
 150    this->display->add_global_handler(
 151       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 152          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 153       });
 154
 155    this->display->add_global_handler(
 156       "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 157          this->controller =
 158             std::make_unique<struct compositor::controller>(r, name, v);
 159
 160          // Init controller hooks
 161          this->controller->chooks = &this->chooks;
 162
 163          // This protocol needs the output, so lets just add our mapping here...
 164          this->controller->add_proxy_to_id_mapping(
 165             this->outputs.back()->proxy.get(),
 166             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 167                this->outputs.back()->proxy.get())));
 168
 169          // Create screen
 170          this->controller->create_screen(this->outputs.back()->proxy.get());
 171
 172          // Set display to controller
 173          this->controller->display = this->display;
 174       });
 175
 176    // First level objects
 177    this->display->roundtrip();
 178    // Second level objects
 179    this->display->roundtrip();
 180    // Third level objects
 181    this->display->roundtrip();
 182
 183    return init_layers();
 184 }
 185
 186 int App::dispatch_pending_events() {
 187    if (this->pop_pending_events()) {
 188       this->display->dispatch_pending();
 189       return 0;
 190    }
 191    return -1;
 192 }
 193
 194 bool App::pop_pending_events() {
 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    this->pending_events.store(true, std::memory_order_release);
 202 }
 203
 204 optional<int> App::lookup_id(char const *name) {
 205    return this->id_alloc.lookup(std::string(name));
 206 }
 207 optional<std::string> App::lookup_name(int id) {
 208    return this->id_alloc.lookup(id);
 209 }
 210
 211 /**
 212  * init_layers()
 213  */
 214 int App::init_layers() {
 215    if (!this->controller) {
 216       HMI_ERROR("wm", "ivi_controller global not available");
 217       return -1;
 218    }
 219
 220    if (this->outputs.empty()) {
 221       HMI_ERROR("wm", "no output was set up!");
 222       return -1;
 223    }
 224
 225    auto &c = this->controller;
 226
 227    auto &o = this->outputs.front();
 228    auto &s = c->screens.begin()->second;
 229    auto &layers = c->layers;
 230
 231    // Write output dimensions to ivi controller...
 232    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 233    c->physical_size = compositor::size{uint32_t(o->physical_width),
 234                                        uint32_t(o->physical_height)};
 235
 236    // Clear scene
 237    layers.clear();
 238
 239    // Clear screen
 240    s->clear();
 241
 242    // Quick and dirty setup of layers
 243    for (auto const &i : this->layers.mapping) {
 244       c->layer_create(i.second.layer_id, o->width, o->height);
 245       auto &l = layers[i.second.layer_id];
 246       l->set_destination_rectangle(0, 0, o->width, o->height);
 247       l->set_visibility(1);
 248       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 249                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 250    }
 251
 252    // Add layers to screen
 253    s->set_render_order(this->layers.layers);
 254
 255    this->layout_commit();
 256
 257    return 0;
 258 }
 259
 260 void App::layout_commit() {
 261    this->controller->commit_changes();
 262    this->display->flush();
 263 }
 264
 265 void App::allocateWindowResource(char const *event, char const *drawing_name,
 266                                  char const *drawing_area, char const *role,
 267                                  const reply_func &reply) {
 268     const char* new_role = nullptr;
 269     const char* new_area = nullptr;
 270
 271     if (0 == strcmp("activate", event)) {
 272         // TODO:
 273         // This process will be removed
 274         // because the applications will specify role instead of drawing_name
 275         {
 276             if ((nullptr == role) || (0 == strcmp("", role))) {
 277                 HMI_DEBUG("wm", "Role is not specified, so get by using app name");
 278                 new_role = this->app2role_[drawing_name].c_str();
 279             }
 280             else {
 281                 new_role = role;
 282             }
 283             HMI_DEBUG("wm", "drawing_name:%s, new_role: %s", drawing_name, new_role);
 284         }
 285
 286         // TODO:
 287         // This process will be removed
 288         // because the area "normal.full" and "normalfull" will be prohibited
 289         {
 290             if (0 == strcmp("Restriction", drawing_name)) {
 291                 new_area = drawing_area;
 292             }
 293             else {
 294                 if (nullptr == drawing_area) {
 295                     new_area = "normal";
 296                 }
 297                 else if (0 == strcmp("normal.full", drawing_area)) {
 298                     new_area = "normal";
 299                 }
 300                 else if (0 == strcmp("restriction.split.sub", drawing_area)) {
 301                     new_area = "restriction.split.sub";
 302                 }
 303                 else if (0 == strcmp("homescreen", new_role)) {
 304                     // Now homescreen specifies "normalfull"
 305                     new_area = "full";
 306                 }
 307                 else {
 308                     new_area = "normal";
 309                 }
 310             }
 311             HMI_DEBUG("wm", "drawing_area:%s, new_area: %s", drawing_area, new_area);
 312         }
 313     }
 314     else if (0 == strcmp("deactivate", event)) {
 315         // TODO:
 316         // This process will be removed
 317         // because the applications will specify role instead of drawing_name
 318         {
 319             if ((nullptr == role) || (0 == strcmp("", role))) {
 320                 HMI_DEBUG("wm", "Role is not specified, so get by using app name");
 321                 new_role = this->app2role_[drawing_name].c_str();
 322             }
 323             else {
 324                 new_role = role;
 325             }
 326             HMI_DEBUG("wm", "drawing_name:%s, new_role: %s", drawing_name, new_role);
 327         }
 328         new_area = "";
 329     }
 330
 331     // TODO:
 332     // Check role
 333
 334     // TODO:
 335     // If event is "activate" and area is not specifid,
 336     // get default value by using role
 337
 338     // Check Policy
 339     json_object* json_in = json_object_new_object();
 340     json_object* json_out = json_object_new_object();
 341     json_object_object_add(json_in, "event", json_object_new_string(event));
 342
 343     if (nullptr != new_role) {
 344         json_object_object_add(json_in, "role", json_object_new_string(new_role));
 345     }
 346     if (nullptr != new_area) {
 347         json_object_object_add(json_in, "area", json_object_new_string(new_area));
 348     }
 349
 350     int ret = this->pm_.checkPolicy(json_in, &json_out);
 351     if (0 > ret) {
 352         reply("Error checkPolicy()");
 353         return;
 354     }
 355     else {
 356         HMI_DEBUG("wm", "result: %s", json_object_get_string(json_out));
 357     }
 358
 359     // Release json_object
 360     json_object_put(json_in);
 361
 362     // Check parking brake state
 363     json_object* json_parking_brake;
 364     if (!json_object_object_get_ex(json_out, "parking_brake", &json_parking_brake)) {
 365         reply("Not found key \"parking_brake\"");
 366         return;
 367     }
 368
 369     json_bool is_changed;
 370     is_changed = jh::getBoolFromJson(json_parking_brake, "is_changed");
 371     if (is_changed) {
 372         // Update parking brake state
 373         std::string parking_brake_state = jh::getStringFromJson(json_parking_brake, "state");
 374         HMI_DEBUG("wm", "parking_brake_state: %s", parking_brake_state.c_str());
 375
 376         // Emit parking brake event
 377         if ("parking_brake_off" == parking_brake_state) {
 378             this->emitParkingBrakeOff();
 379         }
 380         else if ("parking_brake_on" == parking_brake_state) {
 381             this->emitParkingBrakeOn();
 382         }
 383         else {
 384             reply("Unknown parking brake state");
 385             return;
 386         }
 387     }
 388
 389     // Check car state
 390     json_object* json_car;
 391     if (!json_object_object_get_ex(json_out, "car", &json_car)) {
 392         reply("Not found key \"car\"");
 393         return;
 394     }
 395
 396     is_changed = jh::getBoolFromJson(json_car, "is_changed");
 397     if (is_changed) {
 398         // Update car state
 399         std::string car_state = jh::getStringFromJson(json_car, "state");
 400         HMI_DEBUG("wm", "car_state: %s", car_state.c_str());
 401
 402         // Emit car event
 403         if ("car_stop" == car_state) {
 404             this->emitCarStop();
 405         }
 406         else if ("car_run" == car_state) {
 407             this->emitCarRun();
 408         }
 409         else {
 410             reply("Unknown car state");
 411             return;
 412         }
 413     }
 414
 415     // Check lamp state
 416     json_object* json_lamp;
 417     if (!json_object_object_get_ex(json_out, "lamp", &json_lamp)) {
 418         reply("Not found key \"lamp\"");
 419         return;
 420     }
 421
 422     is_changed = jh::getBoolFromJson(json_lamp, "is_changed");
 423     if (is_changed) {
 424         // Update car state
 425         std::string lamp_state = jh::getStringFromJson(json_lamp, "state");
 426         HMI_DEBUG("wm", "lamp_state: %s", lamp_state.c_str());
 427
 428         // Emit lamp event
 429         if ("lamp_off" == lamp_state) {
 430             this->emitHeadlampOff();
 431         }
 432         else if ("lamp_on" == lamp_state) {
 433             this->emitHeadlampOn();
 434         }
 435         else {
 436             reply("Unknown lamp state");
 437             return;
 438         }
 439     }
 440
 441     // Get category
 442     const char* category = nullptr;
 443     std::string str_category;
 444     if (nullptr != new_role) {
 445         str_category = this->pm_.roleToCategory(new_role);
 446         category = str_category.c_str();
 447         HMI_DEBUG("wm", "role:%s category:%s", new_role, category);
 448     }
 449
 450     // Update layout
 451     if (this->lm_.updateLayout(json_out, new_role, category)) {
 452         HMI_DEBUG("wm", "Layer is changed!!");
 453
 454         // Allocate surface
 455         this->allocateSurface();
 456     }
 457     else {
 458         HMI_DEBUG("wm", "All layer is NOT changed!!");
 459     }
 460
 461     // Release json_object
 462     json_object_put(json_out);
 463
 464     return;
 465 }
 466
 467 void App::enqueue_flushdraw(int surface_id) {
 468    this->check_flushdraw(surface_id);
 469    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 470    this->pending_end_draw.push_back(surface_id);
 471 }
 472
 473 void App::check_flushdraw(int surface_id) {
 474    auto i = std::find(std::begin(this->pending_end_draw),
 475                       std::end(this->pending_end_draw), surface_id);
 476    if (i != std::end(this->pending_end_draw)) {
 477       auto n = this->lookup_name(surface_id);
 478       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 479                n ? n->c_str() : "unknown-name", surface_id);
 480       std::swap(this->pending_end_draw[std::distance(
 481                    std::begin(this->pending_end_draw), i)],
 482                 this->pending_end_draw.back());
 483       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 484    }
 485 }
 486
 487 void App::api_enddraw(char const *drawing_name) {
 488    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 489       auto n = this->lookup_name(this->pending_end_draw[i]);
 490       if (n && *n == drawing_name) {
 491          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 492          this->pending_end_draw.resize(iend - 1);
 493          this->activate(this->pending_end_draw[i]);
 494          this->emit_flushdraw(drawing_name);
 495       }
 496    }
 497 }
 498
 499 void App::api_ping() { this->dispatch_pending_events(); }
 500
 501 void App::send_event(char const *evname){
 502    HMI_DEBUG("wm", "%s: %s", __func__, evname);
 503
 504    int ret = afb_event_push(this->map_afb_event[evname], nullptr);
 505    if (ret != 0) {
 506       HMI_DEBUG("wm", "afb_event_push failed: %m");
 507    }
 508 }
 509
 510 void App::send_event(char const *evname, char const *label){
 511    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 512
 513    json_object *j = json_object_new_object();
 514    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 515
 516    int ret = afb_event_push(this->map_afb_event[evname], j);
 517    if (ret != 0) {
 518       HMI_DEBUG("wm", "afb_event_push failed: %m");
 519    }
 520 }
 521
 522 void App::send_event(char const *evname, char const *label, char const *area,
 523                              int x, int y, int w, int h) {
 524    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 525              __func__, evname, label, area, x, y, w, h);
 526
 527    json_object *j_rect = json_object_new_object();
 528    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 529    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 530    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 531    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 532
 533    json_object *j = json_object_new_object();
 534    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 535    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 536    json_object_object_add(j, kKeyDrawingRect, j_rect);
 537
 538    int ret = afb_event_push(this->map_afb_event[evname], j);
 539    if (ret != 0) {
 540       HMI_DEBUG("wm", "afb_event_push failed: %m");
 541    }
 542 }
 543
 544 /**
 545  * proxied events
 546  */
 547 void App::surface_created(uint32_t surface_id) {
 548    auto layer_id = this->layers.get_layer_id(surface_id);
 549    if (!layer_id) {
 550       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 551                surface_id);
 552       return;
 553    }
 554
 555    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 556
 557    this->controller->layers[*layer_id]->add_surface(surface_id);
 558    this->layout_commit();
 559    // activate the main_surface right away
 560    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 561       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 562
 563       this->api_activate_surface(
 564          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 565    }*/
 566 }
 567
 568 void App::surface_removed(uint32_t surface_id) {
 569    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 570
 571    // We cannot normally deactivate the main_surface, so be explicit
 572    // about it:
 573    if (int(surface_id) == this->layers.main_surface) {
 574       this->deactivate_main_surface();
 575    } else {
 576       auto drawing_name = this->lookup_name(surface_id);
 577       if (drawing_name) {
 578          this->allocateWindowResource("deactivate", drawing_name->c_str(),
 579                                       nullptr, nullptr,
 580                                       [](const char*){});
 581       }
 582    }
 583
 584    this->id_alloc.remove_id(surface_id);
 585    this->layers.remove_surface(surface_id);
 586 }
 587
 588 void App::emit_activated(char const *label) {
 589    this->send_event(kListEventName[Event_Active], label);
 590 }
 591
 592 void App::emit_deactivated(char const *label) {
 593    this->send_event(kListEventName[Event_Inactive], label);
 594 }
 595
 596 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 597    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 598 }
 599
 600 void App::emit_flushdraw(char const *label) {
 601    this->send_event(kListEventName[Event_FlushDraw], label);
 602 }
 603
 604 void App::emit_visible(char const *label, bool is_visible) {
 605    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 606 }
 607
 608 void App::emit_invisible(char const *label) {
 609    return emit_visible(label, false);
 610 }
 611
 612 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 613
 614 void App::emitHeadlampOff() {
 615     // Send HeadlampOff event for all application
 616     this->send_event(kListEventName[Event_HeadlampOff]);
 617 }
 618
 619 void App::emitHeadlampOn() {
 620     // Send HeadlampOn event for all application
 621     this->send_event(kListEventName[Event_HeadlampOn]);
 622 }
 623
 624 void App::emitParkingBrakeOff() {
 625     // Send ParkingBrakeOff event for all application
 626     this->send_event(kListEventName[Event_ParkingBrakeOff]);
 627 }
 628
 629 void App::emitParkingBrakeOn() {
 630     // Send ParkingBrakeOn event for all application
 631     this->send_event(kListEventName[Event_ParkingBrakeOn]);
 632 }
 633
 634 void App::emitCarStop() {
 635     // Send CarStop event for all application
 636     this->send_event(kListEventName[Event_CarStop]);
 637 }
 638
 639 void App::emitCarRun() {
 640     // Send CarRun event for all application
 641     this->send_event(kListEventName[Event_CarRun]);
 642 }
 643
 644 result<int> App::api_request_surface(char const *drawing_name) {
 645    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 646    if (!lid) {
 647       /**
 648        * register drawing_name as fallback and make it displayed.
 649        */
 650       lid = this->layers.get_layer_id(std::string("Fallback"));
 651       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 652       if(!lid){
 653           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 654       }
 655    }
 656
 657    auto rname = this->lookup_id(drawing_name);
 658    if (!rname) {
 659       // name does not exist yet, allocate surface id...
 660       auto id = int(this->id_alloc.generate_id(drawing_name));
 661       this->layers.add_surface(id, *lid);
 662
 663       // set the main_surface[_name] here and now
 664       if (!this->layers.main_surface_name.empty() &&
 665           this->layers.main_surface_name == drawing_name) {
 666          this->layers.main_surface = id;
 667          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 668       }
 669
 670 #if 0 // @@@@@
 671       // TODO:
 672       // This process will be implemented in SystemManager
 673       {
 674           // Generate app id
 675           auto id = int(this->app_id_alloc_.generate_id(drawing_name));
 676           this->appname2appid_[drawing_name] = id;
 677       }
 678 #endif
 679
 680       // Set map of (role, surface_id)
 681       std::string role = this->app2role_[std::string(drawing_name)];
 682       this->role2surfaceid_[role] = id;
 683
 684       // Set map of (role, app)
 685       // If the new app which has the same role which is had by existing app is requested,
 686       // the role is given to the new app.
 687       this->role2app_[role] = std::string(drawing_name);
 688
 689       return Ok<int>(id);
 690    }
 691
 692    // Check currently registered drawing names if it is already there.
 693    return Err<int>("Surface already present");
 694 }
 695
 696 char const *App::api_request_surface(char const *drawing_name,
 697                                      char const *ivi_id) {
 698    ST();
 699
 700    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 701    unsigned sid = std::stol(ivi_id);
 702
 703    if (!lid) {
 704       /**
 705        * register drawing_name as fallback and make it displayed.
 706        */
 707       lid = this->layers.get_layer_id(std::string("Fallback"));
 708       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 709       if(!lid){
 710           return "Drawing name does not match any role, Fallback is disabled";
 711       }
 712    }
 713
 714    auto rname = this->lookup_id(drawing_name);
 715
 716    if (rname) {
 717        return "Surface already present";
 718    }
 719
 720    // register pair drawing_name and ivi_id
 721    this->id_alloc.register_name_id(drawing_name, sid);
 722    this->layers.add_surface(sid, *lid);
 723
 724    // this surface is already created
 725    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 726
 727    this->controller->layers[*lid]->add_surface(sid);
 728    this->layout_commit();
 729
 730    return nullptr;
 731 }
 732
 733 result<json_object *> App::api_get_display_info() {
 734    // Check controller
 735    if (!this->controller) {
 736       return Err<json_object *>("ivi_controller global not available");
 737    }
 738
 739    // Set display info
 740    compositor::size o_size = this->controller->output_size;
 741    compositor::size p_size = this->controller->physical_size;
 742
 743    json_object *object = json_object_new_object();
 744    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 745    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 746    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 747    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 748
 749    return Ok<json_object *>(object);
 750 }
 751
 752 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 753    HMI_DEBUG("wm", "called");
 754
 755    // Check drawing name, surface/layer id
 756    auto const &surface_id = this->lookup_id(drawing_name);
 757    if (!surface_id) {
 758       return Err<json_object *>("Surface does not exist");
 759    }
 760
 761    if (!this->controller->surface_exists(*surface_id)) {
 762       return Err<json_object *>("Surface does not exist in controller!");
 763    }
 764
 765    auto layer_id = this->layers.get_layer_id(*surface_id);
 766    if (!layer_id) {
 767       return Err<json_object *>("Surface is not on any layer!");
 768    }
 769
 770    auto o_state = *this->layers.get_layout_state(*surface_id);
 771    if (o_state == nullptr) {
 772       return Err<json_object *>("Could not find layer for surface");
 773    }
 774
 775    struct LayoutState &state = *o_state;
 776    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 777       return Err<json_object *>("Surface is inactive");
 778    }
 779
 780    // Set area rectangle
 781    compositor::rect area_info = this->area_info[*surface_id];
 782    json_object *object = json_object_new_object();
 783    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 784    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 785    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 786    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 787
 788    return Ok<json_object *>(object);
 789 }
 790
 791 void App::activate(int id) {
 792    auto ip = this->controller->sprops.find(id);
 793    if (ip != this->controller->sprops.end()) {
 794       this->controller->surfaces[id]->set_visibility(1);
 795       char const *label =
 796          this->lookup_name(id).value_or("unknown-name").c_str();
 797
 798       // FOR CES DEMO >>>
 799       if ((0 == strcmp(label, "Radio"))
 800           || (0 == strcmp(label, "MediaPlayer"))
 801           || (0 == strcmp(label, "Music"))
 802           || (0 == strcmp(label, "Navigation"))) {
 803         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 804             if (id == *i) {
 805                // Remove id
 806                this->surface_bg.erase(i);
 807
 808                // Remove from BG layer (999)
 809                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 810                this->controller->layers[999]->remove_surface(id);
 811
 812                // Add to FG layer (1001)
 813                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 814                this->controller->layers[1001]->add_surface(id);
 815
 816                for (int j : this->surface_bg) {
 817                  HMI_DEBUG("wm", "Stored id:%d", j);
 818                }
 819                break;
 820             }
 821          }
 822       }
 823       // <<< FOR CES DEMO
 824       this->layout_commit();
 825
 826       this->emit_visible(label);
 827       this->emit_activated(label);
 828    }
 829 }
 830
 831 void App::deactivate(int id) {
 832    auto ip = this->controller->sprops.find(id);
 833    if (ip != this->controller->sprops.end()) {
 834       char const *label =
 835          this->lookup_name(id).value_or("unknown-name").c_str();
 836
 837       // FOR CES DEMO >>>
 838       if ((0 == strcmp(label, "Radio"))
 839           || (0 == strcmp(label, "MediaPlayer"))
 840           || (0 == strcmp(label, "Music"))
 841           || (0 == strcmp(label, "Navigation"))) {
 842
 843          // Store id
 844          this->surface_bg.push_back(id);
 845
 846          // Remove from FG layer (1001)
 847          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 848          this->controller->layers[1001]->remove_surface(id);
 849
 850          // Add to BG layer (999)
 851          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 852          this->controller->layers[999]->add_surface(id);
 853
 854          for (int j : surface_bg) {
 855             HMI_DEBUG("wm", "Stored id:%d", j);
 856          }
 857       }
 858       else {
 859          this->controller->surfaces[id]->set_visibility(0);
 860       }
 861       // <<< FOR CES DEMO
 862
 863       this->layout_commit();
 864
 865       this->emit_deactivated(label);
 866       this->emit_invisible(label);
 867    }
 868 }
 869
 870 void App::deactivate(std::string role) {
 871     std::string app = this->role2app_[role];
 872     auto const &id = this->lookup_id(app.c_str());
 873     if (!id) {
 874       HMI_ERROR("wm", "Surface does not exist");
 875       return;
 876     }
 877     HMI_DEBUG("wm", "Deactivate role:%s (app:%s)",
 878               role.c_str(), app.c_str());
 879
 880     this->deactivate(*id);
 881 }
 882
 883 void App::deactivate_main_surface() {
 884    this->layers.main_surface = -1;
 885    this->allocateWindowResource("deactivate", this->layers.main_surface_name.c_str(),
 886                                 nullptr, nullptr,
 887                                 [](const char*){});
 888 }
 889
 890 /**
 891  * controller_hooks
 892  */
 893 void controller_hooks::surface_created(uint32_t surface_id) {
 894    this->app->surface_created(surface_id);
 895 }
 896
 897 void controller_hooks::surface_removed(uint32_t surface_id) {
 898    this->app->surface_removed(surface_id);
 899 }
 900
 901 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
 902                                           uint32_t /*v*/) {}
 903
 904 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
 905                                                      uint32_t /*x*/,
 906                                                      uint32_t /*y*/,
 907                                                      uint32_t /*w*/,
 908                                                      uint32_t /*h*/) {}
 909
 910 int App::allocateSurface() {
 911     HMI_DEBUG("wm", "Call");
 912
 913     // Get current/previous layers
 914     LayoutManager::TypeLayers crr_layers = this->lm_.getCurrentLayers();
 915     LayoutManager::TypeLayers prv_layers = this->lm_.getPreviousLayers();
 916
 917     // Update resource of all layers
 918     for (auto itr_layers = crr_layers.begin();
 919          itr_layers != crr_layers.end(); ++itr_layers) {
 920         // Get layer
 921         std::string layer = itr_layers->first;
 922         HMI_DEBUG("wm", "Try to update resource in %s layer", layer.c_str());
 923
 924         // If layout is changed, update resouce
 925         if (this->lm_.isLayoutChanged(layer.c_str())) {
 926             // Get current/previous layout
 927             LayoutManager::TypeLayouts crr_layout = itr_layers->second;
 928             LayoutManager::TypeLayouts prv_layout = prv_layers[layer];
 929
 930             // Get current/previous layout name
 931             std::string crr_layout_name = crr_layout.begin()->first;
 932             std::string prv_layout_name = prv_layout.begin()->first;
 933             HMI_DEBUG("wm", "layout name crr:%s prv:%s",
 934                       crr_layout_name.c_str(), prv_layout_name.c_str());
 935
 936             // Get current/previous ares
 937             LayoutManager::TypeAreas crr_areas = crr_layout[crr_layout_name];
 938             LayoutManager::TypeAreas prv_areas = prv_layout[prv_layout_name];
 939
 940             // Create previous displayed role list
 941             std::string prv_area_name;
 942             std::vector<std::string> prv_role_list;
 943             for (auto itr_areas = prv_areas.begin();
 944                  itr_areas != prv_areas.end(); ++itr_areas) {
 945                 prv_area_name = itr_areas->first;
 946                 prv_role_list.push_back(prv_areas[prv_area_name]["role"]);
 947                 HMI_DEBUG("wm", "previous displayed role:%s",
 948                           prv_areas[prv_area_name]["role"].c_str());
 949             }
 950
 951             // Allocate surface for each area
 952             std::string crr_area_name;
 953             std::string crr_role_name;
 954             LayoutManager::TypeRolCtg crr_rol_ctg;
 955             for (auto itr_areas = crr_areas.begin();
 956                  itr_areas != crr_areas.end(); ++itr_areas) {
 957                 crr_area_name = itr_areas->first;
 958                 crr_rol_ctg = itr_areas->second;
 959
 960                 // Get role of current area
 961                 if ("category" == crr_rol_ctg.begin()->first) {
 962                     // If current area have category
 963                     // Get category name
 964                     std::string crr_ctg = crr_rol_ctg.begin()->second;
 965
 966                     // Serch relevant role from previous displayed role list
 967                     for (auto itr_role = prv_role_list.begin();
 968                          itr_role != prv_role_list.end(); ++itr_role) {
 969                         std::string prv_ctg = this->pm_.roleToCategory((*itr_role).c_str());
 970                         if (crr_ctg == prv_ctg) {
 971                             // First discovered role is set to current role
 972                             crr_role_name = *itr_role;
 973
 974                             // Delete used role for other areas
 975                             // which have same category
 976                             prv_role_list.erase(itr_role);
 977
 978                             break;
 979                         }
 980                     }
 981                 }
 982                 else {
 983                     crr_role_name = itr_areas->second["role"];
 984                 }
 985                 HMI_DEBUG("wm", "Allocate surface for area:%s role:%s",
 986                           crr_area_name.c_str(), crr_role_name.c_str());
 987
 988                 // Deactivate non-displayed role
 989                 std::string prv_role_name;
 990                 if (crr_layout_name == prv_layout_name) {
 991                     HMI_DEBUG("wm", "Current layout is same with previous");
 992
 993                     // Deactivate previous role in same area
 994                     // if it is different with current
 995                     prv_role_name = prv_areas[crr_area_name]["role"];
 996                     if (crr_role_name != prv_role_name) {
 997                         this->deactivate(prv_role_name);
 998                     }
 999                 }
1000                 else {
1001                     HMI_DEBUG("wm", "Current layout is different with previous");
1002
1003                     if ("none" != prv_layout_name) {
1004                         // Deactivate previous role in all area in previous layout
1005                         // if it is different with current role
1006                         for(auto itr = prv_areas.begin(); itr != prv_areas.end(); ++itr) {
1007                             prv_role_name = itr->second["role"].c_str();
1008                             if (crr_role_name != prv_role_name) {
1009                                 this->deactivate(prv_role_name);
1010                             }
1011                         }
1012                     }
1013                 }
1014
1015                 // Set surface for displayed role
1016                 if ("none" != crr_layout_name) {
1017                     // If current layout is not "none",
1018                     // set surface for current role
1019                     this->setSurfaceSize(crr_role_name.c_str(), crr_area_name.c_str());
1020
1021                     // TODO:
1022                     // This API is workaround.
1023                     // Resource manager should manage each resource infomations
1024                     // according to architecture document.
1025                     this->lm_.updateArea(layer.c_str(), crr_role_name.c_str(), crr_area_name.c_str());
1026                 }
1027             }
1028         }
1029     }
1030     return 0;
1031 }
1032
1033 void App::setSurfaceSize(const char* role, const char* area) {
1034     HMI_DEBUG("wm", "role:%s area:%s", role, area);
1035
1036     // Get size of current area
1037     compositor::rect size = this->lm_.getAreaSize(area);
1038
1039     // Set destination to the display rectangle
1040     int surface_id = this->role2surfaceid_[role];
1041     auto &s = this->controller->surfaces[surface_id];
1042     s->set_destination_rectangle(size.x, size.y, size.w, size.h);
1043     this->layout_commit();
1044
1045     // Update area information
1046     this->area_info[surface_id].x = size.x;
1047     this->area_info[surface_id].y = size.y;
1048     this->area_info[surface_id].w = size.w;
1049     this->area_info[surface_id].h = size.h;
1050     HMI_DEBUG("wm", "Surface rect { %d, %d, %d, %d }",
1051               size.x, size.y, size.w, size.h);
1052
1053     // Emit syncDraw event
1054     const char* app = this->role2app_[role].c_str();
1055     this->emit_syncdraw(app, area,
1056                         size.x, size.y, size.w, size.h);
1057
1058     // Enqueue flushDraw event
1059     this->enqueue_flushdraw(surface_id);
1060 }
1061
1062 extern const char* kDefaultAppDb;
1063 int App::loadAppDb() {
1064     HMI_DEBUG("wm", "Call");
1065
1066     // Get afm application installed dir
1067     char const *afm_app_install_dir = getenv("AFM_APP_INSTALL_DIR");
1068     HMI_DEBUG("wm", "afm_app_install_dir:%s", afm_app_install_dir);
1069
1070     std::string file_name;
1071     if (!afm_app_install_dir) {
1072         HMI_ERROR("wm", "AFM_APP_INSTALL_DIR is not defined");
1073     }
1074     else {
1075         file_name = std::string(afm_app_install_dir) + std::string("/etc/app.db");
1076     }
1077
1078     // Load app.db
1079     json_object* json_obj;
1080     int ret = jh::inputJsonFilie(file_name.c_str(), &json_obj);
1081     if (0 > ret) {
1082         HMI_ERROR("wm", "Could not open app.db, so use default role information");
1083         json_obj = json_tokener_parse(kDefaultAppDb);
1084     }
1085     HMI_DEBUG("wm", "json_obj dump:%s", json_object_get_string(json_obj));
1086
1087     // Perse apps
1088     HMI_DEBUG("wm", "Perse apps");
1089     json_object* json_cfg;
1090     if (!json_object_object_get_ex(json_obj, "apps", &json_cfg)) {
1091         HMI_ERROR("wm", "Parse Error!!");
1092         return -1;
1093     }
1094
1095     int len = json_object_array_length(json_cfg);
1096     HMI_DEBUG("wm", "json_cfg len:%d", len);
1097     HMI_DEBUG("wm", "json_cfg dump:%s", json_object_get_string(json_cfg));
1098
1099     for (int i=0; i<len; i++) {
1100         json_object* json_tmp = json_object_array_get_idx(json_cfg, i);
1101         HMI_DEBUG("wm", "> json_tmp dump:%s", json_object_get_string(json_tmp));
1102
1103         const char* app = jh::getStringFromJson(json_tmp, "name");
1104         if (nullptr == app) {
1105             HMI_ERROR("wm", "Parse Error!!");
1106             return -1;
1107         }
1108         HMI_DEBUG("wm", "> app:%s", app);
1109
1110         const char* role = jh::getStringFromJson(json_tmp, "role");
1111         if (nullptr == role) {
1112             HMI_ERROR("wm", "Parse Error!!");
1113             return -1;
1114         }
1115         HMI_DEBUG("wm", "> role:%s", role);
1116
1117         this->app2role_[app] = std::string(role);
1118     }
1119
1120     // Check
1121     for(auto itr = this->app2role_.begin();
1122       itr != this->app2role_.end(); ++itr) {
1123         HMI_DEBUG("wm", "app:%s role:%s",
1124                   itr->first.c_str(), itr->second.c_str());
1125     }
1126
1127     // Release json_object
1128     json_object_put(json_obj);
1129
1130     return 0;
1131 }
1132
1133
1134 const char* kDefaultAppDb = "{ \
1135     \"apps\": [ \
1136         { \
1137             \"name\": \"HomeScreen\", \
1138             \"role\": \"homescreen\" \
1139         }, \
1140         { \
1141             \"name\": \"Music\", \
1142             \"role\": \"music\" \
1143         }, \
1144         { \
1145             \"name\": \"MediaPlayer\", \
1146             \"role\": \"music\" \
1147         }, \
1148         { \
1149             \"name\": \"Video\", \
1150             \"role\": \"video\" \
1151         }, \
1152         { \
1153             \"name\": \"VideoPlayer\", \
1154             \"role\": \"video\" \
1155         }, \
1156         { \
1157             \"name\": \"WebBrowser\", \
1158             \"role\": \"browser\" \
1159         }, \
1160         { \
1161             \"name\": \"Radio\", \
1162             \"role\": \"radio\" \
1163         }, \
1164         { \
1165             \"name\": \"Phone\", \
1166             \"role\": \"phone\" \
1167         }, \
1168         { \
1169             \"name\": \"Navigation\", \
1170             \"role\": \"map\" \
1171         }, \
1172         { \
1173             \"name\": \"HVAC\", \
1174             \"role\": \"hvac\" \
1175         }, \
1176         { \
1177             \"name\": \"Settings\", \
1178             \"role\": \"settings\" \
1179         }, \
1180         { \
1181             \"name\": \"Dashboard\", \
1182             \"role\": \"dashboard\" \
1183         }, \
1184         { \
1185             \"name\": \"POI\", \
1186             \"role\": \"poi\" \
1187         }, \
1188         { \
1189             \"name\": \"Mixer\", \
1190             \"role\": \"mixer\" \
1191         } \
1192     ] \
1193 }";
1194
1195
1196 }  // namespace wm