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 const char kKeyAppID[]       = "id";
  62
  63
  64 namespace {
  65
  66 using nlohmann::json;
  67
  68 result<json> file_to_json(char const *filename) {
  69    json j;
  70    std::ifstream i(filename);
  71    if (i.fail()) {
  72       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  73       j = default_layers_json;
  74    }
  75    else {
  76       i >> j;
  77    }
  78
  79    return Ok(j);
  80 }
  81
  82 struct result<layer_map> load_layer_map(char const *filename) {
  83    HMI_DEBUG("wm", "loading IDs from %s", filename);
  84
  85    auto j = file_to_json(filename);
  86    if (j.is_err()) {
  87       return Err<layer_map>(j.unwrap_err());
  88    }
  89    json jids = j.unwrap();
  90
  91    return to_layer_map(jids);
  92 }
  93
  94 }  // namespace
  95
  96
  97 namespace rm {
  98 App *context;
  99 std::string g_new_role; // TODO: workaround
 100 static void eventHandler(json_object* json_out) {
 101     context->updateWindowResource(json_out);
 102 }
 103 }  // namespace rm
 104
 105
 106 void App::updateWindowResource(json_object* json_out) {
 107     HMI_DEBUG("wm", "role:%s", rm::g_new_role.c_str());
 108
 109     // Check parking brake state
 110     json_object* json_parking_brake;
 111     if (!json_object_object_get_ex(json_out, "parking_brake", &json_parking_brake)) {
 112         HMI_DEBUG("wm", "Not found key \"parking_brake\"");
 113         return;
 114     }
 115
 116     json_bool is_changed;
 117     is_changed = jh::getBoolFromJson(json_parking_brake, "is_changed");
 118     if (is_changed) {
 119         std::string parking_brake_state = jh::getStringFromJson(json_parking_brake, "state");
 120         HMI_DEBUG("wm", "parking_brake_state: %s", parking_brake_state.c_str());
 121
 122         // Update state and emit event
 123         if ("parking_brake_off" == parking_brake_state) {
 124             this->crr_car_info_.parking_brake_stt = false;
 125 #if 0 // FOR ALS: using lightstatus brake, so do not emit parking brake event
 126             this->emitParkingBrakeOff();
 127 #endif
 128         }
 129         else if ("parking_brake_on" == parking_brake_state) {
 130             this->crr_car_info_.parking_brake_stt = true;
 131 #if 0 // FOR ALS: using lightstatus brake, so do not emit parking brake event
 132             this->emitParkingBrakeOn();
 133 #endif
 134         }
 135         else {
 136             HMI_DEBUG("wm", "Unknown parking brake state");
 137             return;
 138         }
 139     }
 140
 141     // Check accelerator pedal state
 142     json_object* json_accel_pedal;
 143     if (!json_object_object_get_ex(json_out, "accel_pedal", &json_accel_pedal)) {
 144         HMI_DEBUG("wm", "Not found key \"accel_pedal\"");
 145         return;
 146     }
 147
 148     is_changed = jh::getBoolFromJson(json_accel_pedal, "is_changed");
 149     if (is_changed) {
 150         std::string accel_pedal_state = jh::getStringFromJson(json_accel_pedal, "state");
 151         HMI_DEBUG("wm", "accel_pedal_state: %s", accel_pedal_state.c_str());
 152
 153         // Update state
 154         if ("accel_pedal_off" == accel_pedal_state) {
 155             this->crr_car_info_.accel_pedal_stt = false;
 156         }
 157         else if ("accel_pedal_on" == accel_pedal_state) {
 158             this->crr_car_info_.accel_pedal_stt = true;
 159         }
 160         else {
 161             HMI_DEBUG("wm", "Unknown accel pedal state");
 162             return;
 163         }
 164     }
 165
 166     // Check lightstatus brake state
 167     json_object* json_lightstatus_brake;
 168     if (!json_object_object_get_ex(json_out, "lightstatus_brake", &json_lightstatus_brake)) {
 169         HMI_DEBUG("wm", "Not found key \"lightstatus_brake\"");
 170         return;
 171     }
 172
 173     is_changed = jh::getBoolFromJson(json_lightstatus_brake, "is_changed");
 174     if (is_changed) {
 175         std::string lightstatus_brake_state = jh::getStringFromJson(json_lightstatus_brake, "state");
 176         HMI_DEBUG("wm", "lightstatus_brake_state: %s", lightstatus_brake_state.c_str());
 177
 178         // Update state and emit event
 179         if ("lightstatus_brake_off" == lightstatus_brake_state) {
 180             this->crr_car_info_.lightstatus_brake_stt = false;
 181             this->emitLightstatusBrakeOff();
 182         }
 183         else if ("lightstatus_brake_on" == lightstatus_brake_state) {
 184             this->crr_car_info_.lightstatus_brake_stt = true;
 185             this->emitLightstatusBrakeOn();
 186         }
 187         else {
 188             HMI_DEBUG("wm", "Unknown lightstatus brake state");
 189             return;
 190         }
 191     }
 192
 193     // Check car state
 194     json_object* json_car;
 195     if (!json_object_object_get_ex(json_out, "car", &json_car)) {
 196         HMI_DEBUG("wm", "Not found key \"car\"");
 197         return;
 198     }
 199
 200     is_changed = jh::getBoolFromJson(json_car, "is_changed");
 201     if (is_changed) {
 202         std::string car_state = jh::getStringFromJson(json_car, "state");
 203         HMI_DEBUG("wm", "car_state: %s", car_state.c_str());
 204
 205         // Emit car event
 206         if ("car_stop" == car_state) {
 207             this->crr_car_info_.car_stt = "stop";
 208             this->emitCarStop();
 209         }
 210         else if ("car_run" == car_state) {
 211             this->crr_car_info_.car_stt = "run";
 212             this->emitCarRun();
 213         }
 214         else {
 215             HMI_DEBUG("wm", "Unknown car state");
 216             return;
 217         }
 218     }
 219
 220     // Check lamp state
 221     json_object* json_lamp;
 222     if (!json_object_object_get_ex(json_out, "lamp", &json_lamp)) {
 223         HMI_DEBUG("wm", "Not found key \"lamp\"");
 224         return;
 225     }
 226
 227     is_changed = jh::getBoolFromJson(json_lamp, "is_changed");
 228     if (is_changed) {
 229         std::string lamp_state = jh::getStringFromJson(json_lamp, "state");
 230         HMI_DEBUG("wm", "lamp_state: %s", lamp_state.c_str());
 231
 232         // Update state and emit event
 233         if ("lamp_off" == lamp_state) {
 234             this->crr_car_info_.headlamp_stt = false;
 235             this->emitHeadlampOff();
 236         }
 237         else if ("lamp_on" == lamp_state) {
 238             this->crr_car_info_.headlamp_stt = true;
 239             this->emitHeadlampOn();
 240         }
 241         else {
 242             HMI_DEBUG("wm", "Unknown lamp state");
 243             return;
 244         }
 245     }
 246
 247     // Get category
 248     const char* category = nullptr;
 249     std::string str_category;
 250     str_category = this->pm_.roleToCategory(rm::g_new_role.c_str());
 251     category = str_category.c_str();
 252     HMI_DEBUG("wm", "role:%s category:%s", rm::g_new_role.c_str(), category);
 253
 254     // Update layout
 255     if (this->lm_.updateLayout(json_out, rm::g_new_role.c_str(), category)) {
 256         HMI_DEBUG("wm", "Layer is changed!!");
 257
 258         // Allocate surface
 259         this->allocateSurface();
 260     }
 261     else {
 262         HMI_DEBUG("wm", "All layer is NOT changed!!");
 263     }
 264 }
 265
 266
 267 /**
 268  * App Impl
 269  */
 270 App::App(wl::display *d)
 271    : chooks{this},
 272      display{d},
 273      controller{},
 274      outputs(),
 275      config(),
 276      layers(),
 277      id_alloc{},
 278      pending_events(false),
 279      policy{} {
 280    try {
 281       {
 282          auto l = load_layer_map(
 283             this->config.get_string("layers.json").value().c_str());
 284          if (l.is_ok()) {
 285             this->layers = l.unwrap();
 286          } else {
 287             HMI_ERROR("wm", "%s", l.err().value());
 288          }
 289       }
 290    } catch (std::exception &e) {
 291       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 292    }
 293
 294    // Initialize current car info
 295    this->crr_car_info_.parking_brake_stt = true;
 296    this->crr_car_info_.accel_pedal_stt = false;
 297    this->crr_car_info_.accel_pedal_pos = 0;
 298    this->crr_car_info_.car_stt = "stop";
 299    this->crr_car_info_.headlamp_stt = false;
 300 }
 301
 302 int App::init() {
 303    if (!this->display->ok()) {
 304       return -1;
 305    }
 306
 307    if (this->layers.mapping.empty()) {
 308       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 309       return -1;
 310    }
 311
 312    // Store my context for calling callback for PolicyManager
 313    rm::context = this;
 314
 315 #if 1 // @@@@@
 316    // Load app.db
 317    this->loadAppDb();
 318 #endif
 319
 320    // Initialize PolicyManager
 321    this->pm_.initialize();
 322
 323    // Register callback to PolicyManager
 324    PolicyManager::CallbackTable callback;
 325    callback.onStateTransitioned = rm::eventHandler;
 326    callback.onError = nullptr;
 327    this->pm_.registerCallback(callback);
 328
 329    // Initialize LayoutManager
 330    this->lm_.initialize();
 331
 332    // Make afb event
 333    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 334       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 335    }
 336
 337    this->display->add_global_handler(
 338       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 339          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 340       });
 341
 342    this->display->add_global_handler(
 343       "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 344          this->controller =
 345             std::make_unique<struct compositor::controller>(r, name, v);
 346
 347          // Init controller hooks
 348          this->controller->chooks = &this->chooks;
 349
 350          // This protocol needs the output, so lets just add our mapping here...
 351          this->controller->add_proxy_to_id_mapping(
 352             this->outputs.back()->proxy.get(),
 353             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 354                this->outputs.back()->proxy.get())));
 355
 356          // Create screen
 357          this->controller->create_screen(this->outputs.back()->proxy.get());
 358
 359          // Set display to controller
 360          this->controller->display = this->display;
 361       });
 362
 363    // First level objects
 364    this->display->roundtrip();
 365    // Second level objects
 366    this->display->roundtrip();
 367    // Third level objects
 368    this->display->roundtrip();
 369
 370    return init_layers();
 371 }
 372
 373 int App::dispatch_pending_events() {
 374    if (this->pop_pending_events()) {
 375       this->display->dispatch_pending();
 376       return 0;
 377    }
 378    return -1;
 379 }
 380
 381 bool App::pop_pending_events() {
 382    bool x{true};
 383    return this->pending_events.compare_exchange_strong(
 384       x, false, std::memory_order_consume);
 385 }
 386
 387 void App::set_pending_events() {
 388    this->pending_events.store(true, std::memory_order_release);
 389 }
 390
 391 optional<int> App::lookup_id(char const *name) {
 392    return this->id_alloc.lookup(std::string(name));
 393 }
 394 optional<std::string> App::lookup_name(int id) {
 395    return this->id_alloc.lookup(id);
 396 }
 397
 398 /**
 399  * init_layers()
 400  */
 401 int App::init_layers() {
 402    if (!this->controller) {
 403       HMI_ERROR("wm", "ivi_controller global not available");
 404       return -1;
 405    }
 406
 407    if (this->outputs.empty()) {
 408       HMI_ERROR("wm", "no output was set up!");
 409       return -1;
 410    }
 411
 412    auto &c = this->controller;
 413
 414    auto &o = this->outputs.front();
 415    auto &s = c->screens.begin()->second;
 416    auto &layers = c->layers;
 417
 418    // Write output dimensions to ivi controller...
 419    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 420    c->physical_size = compositor::size{uint32_t(o->physical_width),
 421                                        uint32_t(o->physical_height)};
 422
 423    // Clear scene
 424    layers.clear();
 425
 426    // Clear screen
 427    s->clear();
 428
 429    // Quick and dirty setup of layers
 430    for (auto const &i : this->layers.mapping) {
 431       c->layer_create(i.second.layer_id, o->width, o->height);
 432       auto &l = layers[i.second.layer_id];
 433       l->set_destination_rectangle(0, 0, o->width, o->height);
 434       l->set_visibility(1);
 435       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 436                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 437    }
 438
 439    // Add layers to screen
 440    s->set_render_order(this->layers.layers);
 441
 442    this->layout_commit();
 443
 444    return 0;
 445 }
 446
 447 void App::layout_commit() {
 448    this->controller->commit_changes();
 449    this->display->flush();
 450 }
 451
 452 const char* App::convertDrawingNameToRole(char const *drawing_name) {
 453     const char* role;
 454
 455     if (this->drawingname2role_.find(drawing_name) != this->drawingname2role_.end()) {
 456         // drawing_name is old role. So convert to new role.
 457         role = this->drawingname2role_[drawing_name].c_str();
 458     }
 459     else {
 460         // drawing_name is new role.
 461         role = drawing_name;
 462     }
 463     HMI_DEBUG("wm", "drawing_name:%s -> role: %s", drawing_name, role);
 464
 465     return role;
 466 }
 467
 468 void App::allocateWindowResource(char const *event, char const *drawing_name,
 469                                  char const *drawing_area, const reply_func &reply) {
 470     const char* new_role = nullptr;
 471     const char* new_area = nullptr;
 472
 473     // Convert old role to new role
 474     if ((nullptr != drawing_name) && (0 != strcmp("", drawing_name))) {
 475         new_role = this->convertDrawingNameToRole(drawing_name);
 476     }
 477
 478     if (0 == strcmp("activate", event)) {
 479         // TODO:
 480         // This process will be removed
 481         // because the area "normal.full" and "normalfull" will be prohibited
 482         {
 483             if (0 == strcmp("restriction", new_role)) {
 484                 new_area = drawing_area;
 485             }
 486             else {
 487                 if (nullptr == drawing_area) {
 488                     new_area = "normal";
 489                 }
 490                 else if (0 == strcmp("normal.full", drawing_area)) {
 491                     new_area = "normal";
 492                 }
 493                 else if (0 == strcmp("restriction.split.sub", drawing_area)) {
 494                     new_area = "restriction.split.sub";
 495                 }
 496                 else if (0 == strcmp("homescreen", new_role)) {
 497                     // Now homescreen specifies "normalfull"
 498                     new_area = "full";
 499                 }
 500                 else {
 501                     new_area = "normal";
 502                 }
 503             }
 504             HMI_DEBUG("wm", "drawing_area:%s, new_area: %s", drawing_area, new_area);
 505         }
 506     }
 507     else if (0 == strcmp("deactivate", event)) {
 508         new_area = "";
 509     }
 510
 511     // TODO:
 512     // Check role
 513
 514     // TODO:
 515     // If event is "activate" and area is not specifid,
 516     // get default value by using role
 517
 518     // Input event to PolicyManager
 519     json_object* json_in = json_object_new_object();
 520     json_object_object_add(json_in, "event", json_object_new_string(event));
 521     if (nullptr != new_role) {
 522         json_object_object_add(json_in, "role", json_object_new_string(new_role));
 523     }
 524     if (nullptr != new_area) {
 525         json_object_object_add(json_in, "area", json_object_new_string(new_area));
 526     }
 527     rm::g_new_role = std::string(new_role);  // TODO: workaround
 528     this->pm_.inputEvent(json_in);
 529
 530     // Release json_object
 531     json_object_put(json_in);
 532
 533     return;
 534 }
 535
 536 void App::enqueue_flushdraw(int surface_id) {
 537    this->check_flushdraw(surface_id);
 538    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 539    this->pending_end_draw.push_back(surface_id);
 540 }
 541
 542 void App::check_flushdraw(int surface_id) {
 543    auto i = std::find(std::begin(this->pending_end_draw),
 544                       std::end(this->pending_end_draw), surface_id);
 545    if (i != std::end(this->pending_end_draw)) {
 546       auto n = this->lookup_name(surface_id);
 547       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 548                n ? n->c_str() : "unknown-name", surface_id);
 549       std::swap(this->pending_end_draw[std::distance(
 550                    std::begin(this->pending_end_draw), i)],
 551                 this->pending_end_draw.back());
 552       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 553    }
 554 }
 555
 556 void App::api_enddraw(char const *appid, char const *drawing_name) {
 557    // Convert drawing_name to role
 558    const char* role = this->convertDrawingNameToRole(drawing_name);
 559
 560    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 561       auto n = this->lookup_name(this->pending_end_draw[i]);
 562       if (n && *n == role) {
 563          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 564          this->pending_end_draw.resize(iend - 1);
 565          this->activate(this->pending_end_draw[i]);
 566          this->emit_flushdraw(drawing_name);
 567          this->emitScreenUpdated(appid);
 568       }
 569    }
 570 }
 571
 572 void App::api_ping() { this->dispatch_pending_events(); }
 573
 574 void App::send_event(char const *evname){
 575    HMI_DEBUG("wm", "%s: %s", __func__, evname);
 576
 577    int ret = afb_event_push(this->map_afb_event[evname], nullptr);
 578    if (ret != 0) {
 579       HMI_DEBUG("wm", "afb_event_push failed: %m");
 580    }
 581 }
 582
 583 void App::send_event(char const *evname, char const *label){
 584    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 585
 586    json_object *j = json_object_new_object();
 587    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 588
 589    int ret = afb_event_push(this->map_afb_event[evname], j);
 590    if (ret != 0) {
 591       HMI_DEBUG("wm", "afb_event_push failed: %m");
 592    }
 593 }
 594
 595 void App::send_event(char const *evname, char const *label, char const *area,
 596                              int x, int y, int w, int h) {
 597    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 598              __func__, evname, label, area, x, y, w, h);
 599
 600    json_object *j_rect = json_object_new_object();
 601    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 602    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 603    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 604    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 605
 606    json_object *j = json_object_new_object();
 607    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 608    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 609    json_object_object_add(j, kKeyDrawingRect, j_rect);
 610
 611    int ret = afb_event_push(this->map_afb_event[evname], j);
 612    if (ret != 0) {
 613       HMI_DEBUG("wm", "afb_event_push failed: %m");
 614    }
 615 }
 616
 617 /**
 618  * proxied events
 619  */
 620 void App::surface_created(uint32_t surface_id) {
 621    auto layer_id = this->layers.get_layer_id(surface_id);
 622    if (!layer_id) {
 623       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 624                surface_id);
 625       return;
 626    }
 627
 628    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 629
 630    this->controller->layers[*layer_id]->add_surface(surface_id);
 631    this->layout_commit();
 632    // activate the main_surface right away
 633    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 634       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 635
 636       this->api_activate_surface(
 637          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 638    }*/
 639 }
 640
 641 void App::surface_removed(uint32_t surface_id) {
 642    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 643
 644    // We cannot normally deactivate the main_surface, so be explicit
 645    // about it:
 646    if (int(surface_id) == this->layers.main_surface) {
 647       this->deactivate_main_surface();
 648    } else {
 649       auto role = this->lookup_name(surface_id);
 650       if (role) {
 651          this->allocateWindowResource("deactivate",
 652                                       role->c_str(), nullptr,
 653                                       [](const char*){});
 654       }
 655    }
 656
 657    this->id_alloc.remove_id(surface_id);
 658    this->layers.remove_surface(surface_id);
 659 }
 660
 661 void App::emit_activated(char const *label) {
 662    this->send_event(kListEventName[Event_Active], label);
 663 }
 664
 665 void App::emit_deactivated(char const *label) {
 666    this->send_event(kListEventName[Event_Inactive], label);
 667 }
 668
 669 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 670    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 671 }
 672
 673 void App::emit_flushdraw(char const *label) {
 674    this->send_event(kListEventName[Event_FlushDraw], label);
 675 }
 676
 677 void App::emit_visible(char const *label, bool is_visible) {
 678    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 679 }
 680
 681 void App::emit_invisible(char const *label) {
 682    return emit_visible(label, false);
 683 }
 684
 685 void App::__send_event_temporary_extend(char const *evname, char const *appid) {
 686     HMI_DEBUG("wm", "send event %s: %s", evname, appid);
 687
 688     json_object *j = json_object_new_object();
 689     json_object_object_add(j, kKeyAppID, json_object_new_string(appid));
 690
 691     int ret = afb_event_push(this->map_afb_event[evname], j);
 692     if (ret != 0) {
 693         HMI_DEBUG("wm", "afb_event_push failed: %m");
 694     }
 695 }
 696
 697 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 698
 699 void App::emitHeadlampOff() {
 700     // Send HeadlampOff event for all application
 701     this->send_event(kListEventName[Event_HeadlampOff]);
 702 }
 703
 704 void App::emitHeadlampOn() {
 705     // Send HeadlampOn event for all application
 706     this->send_event(kListEventName[Event_HeadlampOn]);
 707 }
 708
 709 void App::emitParkingBrakeOff() {
 710     // Send ParkingBrakeOff event for all application
 711     this->send_event(kListEventName[Event_ParkingBrakeOff]);
 712 }
 713
 714 void App::emitParkingBrakeOn() {
 715     // Send ParkingBrakeOn event for all application
 716     this->send_event(kListEventName[Event_ParkingBrakeOn]);
 717 }
 718
 719 void App::emitLightstatusBrakeOff() {
 720     // Send LightstatusBrakeOff event for all application
 721     this->send_event(kListEventName[Event_LightstatusBrakeOff]);
 722 }
 723
 724 void App::emitLightstatusBrakeOn() {
 725     // Send LightstatusBrakeOn event for all application
 726     this->send_event(kListEventName[Event_LightstatusBrakeOn]);
 727 }
 728
 729 void App::emitCarStop() {
 730     // Send CarStop event for all application
 731     this->send_event(kListEventName[Event_CarStop]);
 732 }
 733
 734 void App::emitCarRun() {
 735     // Send CarRun event for all application
 736     this->send_event(kListEventName[Event_CarRun]);
 737 }
 738
 739 void App::emitScreenUpdated(char const* appid) {
 740     // Send ScreenUpdated event for applications which calls wmsubscribe
 741     this->__send_event_temporary_extend(kListEventName[Event_ScreenUpdated], appid);
 742 }
 743
 744 result<int> App::api_request_surface(char const *drawing_name) {
 745    // Convert drawing_name to role
 746    const char* role = this->convertDrawingNameToRole(drawing_name);
 747
 748    auto lid = this->layers.get_layer_id(std::string(role));
 749    if (!lid) {
 750       /**
 751        * register drawing_name as fallback and make it displayed.
 752        */
 753       lid = this->layers.get_layer_id(std::string("Fallback"));
 754       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 755       if(!lid){
 756           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 757       }
 758    }
 759
 760    auto rname = this->lookup_id(role);
 761    if (!rname) {
 762       // name does not exist yet, allocate surface id...
 763       auto id = int(this->id_alloc.generate_id(role));
 764       this->layers.add_surface(id, *lid);
 765
 766       // set the main_surface[_name] here and now
 767       if (!this->layers.main_surface_name.empty() &&
 768           this->layers.main_surface_name == drawing_name) {
 769          this->layers.main_surface = id;
 770          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 771       }
 772
 773       // Set map of (role, surface_id)
 774       this->role2surfaceid_[role] = id;
 775
 776       // Set map of (role, drawing_name)
 777       this->role2drawingname_[role] = std::string(drawing_name);
 778
 779       return Ok<int>(id);
 780    }
 781
 782    // Check currently registered drawing names if it is already there.
 783    return Err<int>("Surface already present");
 784 }
 785
 786 char const *App::api_request_surface(char const *drawing_name,
 787                                      char const *ivi_id) {
 788    ST();
 789    // Convert drawing_name to role
 790    const char* role = this->convertDrawingNameToRole(drawing_name);
 791
 792    auto lid = this->layers.get_layer_id(std::string(role));
 793    unsigned sid = std::stol(ivi_id);
 794
 795    if (!lid) {
 796       /**
 797        * register drawing_name as fallback and make it displayed.
 798        */
 799       lid = this->layers.get_layer_id(std::string("Fallback"));
 800       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 801       if(!lid){
 802           return "Drawing name does not match any role, Fallback is disabled";
 803       }
 804    }
 805
 806    auto rname = this->lookup_id(role);
 807
 808    if (rname) {
 809        return "Surface already present";
 810    }
 811
 812    // register pair drawing_name and ivi_id
 813    this->id_alloc.register_name_id(role, sid);
 814    this->layers.add_surface(sid, *lid);
 815
 816    // this surface is already created
 817    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 818
 819    this->controller->layers[*lid]->add_surface(sid);
 820    this->layout_commit();
 821
 822    return nullptr;
 823 }
 824
 825 result<json_object *> App::api_get_display_info() {
 826    // Check controller
 827    if (!this->controller) {
 828       return Err<json_object *>("ivi_controller global not available");
 829    }
 830
 831    // Set display info
 832    compositor::size o_size = this->controller->output_size;
 833    compositor::size p_size = this->controller->physical_size;
 834
 835    json_object *object = json_object_new_object();
 836    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 837    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 838    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 839    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 840
 841    return Ok<json_object *>(object);
 842 }
 843
 844 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 845    HMI_DEBUG("wm", "called");
 846
 847    // Convert drawing_name to role
 848    const char* role = this->convertDrawingNameToRole(drawing_name);
 849
 850    // Check drawing name, surface/layer id
 851    auto const &surface_id = this->lookup_id(role);
 852    if (!surface_id) {
 853       return Err<json_object *>("Surface does not exist");
 854    }
 855
 856    if (!this->controller->surface_exists(*surface_id)) {
 857       return Err<json_object *>("Surface does not exist in controller!");
 858    }
 859
 860    auto layer_id = this->layers.get_layer_id(*surface_id);
 861    if (!layer_id) {
 862       return Err<json_object *>("Surface is not on any layer!");
 863    }
 864
 865    auto o_state = *this->layers.get_layout_state(*surface_id);
 866    if (o_state == nullptr) {
 867       return Err<json_object *>("Could not find layer for surface");
 868    }
 869
 870    // Set area rectangle
 871    compositor::rect area_info = this->area_info[*surface_id];
 872    json_object *object = json_object_new_object();
 873    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 874    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 875    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 876    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 877
 878    return Ok<json_object *>(object);
 879 }
 880
 881 result<json_object *> App::api_get_car_info(char const *label) {
 882     HMI_DEBUG("wm", "called");
 883
 884     json_object *j_in  = nullptr;
 885     json_object *j_out = nullptr;
 886
 887     if (0 == strcmp("parking_brake_status", label)) {
 888         // Get parking brake status
 889         json_bool val = this->crr_car_info_.parking_brake_stt;
 890         j_in = json_object_new_boolean(val);
 891     }
 892     else if (0 == strcmp("accelerator.pedal.position", label)) {
 893         // Get accelerator pedal position
 894         double val = this->crr_car_info_.accel_pedal_pos;
 895         j_in = json_object_new_double(val);
 896     }
 897     else if (0 == strcmp("car_state", label)) {
 898         // Get car state
 899         const char* val = this->crr_car_info_.car_stt;
 900         j_in = json_object_new_string(val);
 901     }
 902     else if (0 == strcmp("lightstatus.brake", label)) {
 903         // Get lightstatus brake status
 904         json_bool val = this->crr_car_info_.lightstatus_brake_stt;
 905         j_in = json_object_new_boolean(val);
 906     }
 907     else {
 908        return Err<json_object *>("Car info does not exist");
 909     }
 910
 911     // Create output object
 912     j_out = json_object_new_object();
 913     json_object_object_add(j_out, "value", j_in);
 914
 915     return Ok<json_object *>(j_out);
 916 }
 917
 918 void App::activate(int id) {
 919    auto ip = this->controller->sprops.find(id);
 920    if (ip != this->controller->sprops.end()) {
 921       this->controller->surfaces[id]->set_visibility(1);
 922       char const *label =
 923          this->lookup_name(id).value_or("unknown-name").c_str();
 924
 925       if ((0 == strcmp(label, "radio"))
 926           || (0 == strcmp(label, "music"))
 927           || (0 == strcmp(label, "video"))
 928           || (0 == strcmp(label, "map"))) {
 929         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 930             if (id == *i) {
 931                // Remove id
 932                this->surface_bg.erase(i);
 933
 934                // Remove from BG layer (999)
 935                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 936                this->controller->layers[999]->remove_surface(id);
 937
 938                // Add to FG layer (1001)
 939                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 940                this->controller->layers[1001]->add_surface(id);
 941
 942                for (int j : this->surface_bg) {
 943                  HMI_DEBUG("wm", "Stored id:%d", j);
 944                }
 945                break;
 946             }
 947          }
 948       }
 949
 950       this->layout_commit();
 951
 952       this->emit_visible(label);
 953       this->emit_activated(label);
 954    }
 955 }
 956
 957 void App::deactivate(int id) {
 958    auto ip = this->controller->sprops.find(id);
 959    if (ip != this->controller->sprops.end()) {
 960       char const *label =
 961          this->lookup_name(id).value_or("unknown-name").c_str();
 962
 963       if ((0 == strcmp(label, "radio"))
 964           || (0 == strcmp(label, "music"))
 965           || (0 == strcmp(label, "video"))
 966           || (0 == strcmp(label, "map"))) {
 967
 968          // Store id
 969          this->surface_bg.push_back(id);
 970
 971          // Remove from FG layer (1001)
 972          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 973          this->controller->layers[1001]->remove_surface(id);
 974
 975          // Add to BG layer (999)
 976          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 977          this->controller->layers[999]->add_surface(id);
 978
 979          for (int j : surface_bg) {
 980             HMI_DEBUG("wm", "Stored id:%d", j);
 981          }
 982       }
 983       else {
 984          this->controller->surfaces[id]->set_visibility(0);
 985       }
 986
 987       this->layout_commit();
 988
 989       this->emit_deactivated(label);
 990       this->emit_invisible(label);
 991    }
 992 }
 993
 994 void App::deactivate(std::string role) {
 995     auto const &id = this->lookup_id(role.c_str());
 996     if (!id) {
 997       HMI_ERROR("wm", "Surface does not exist");
 998       return;
 999     }
1000     std::string drawing_name = this->role2drawingname_[role];
1001     HMI_DEBUG("wm", "Deactivate role:%s (drawing_name:%s)",
1002               role.c_str(), drawing_name.c_str());
1003
1004     this->deactivate(*id);
1005 }
1006
1007 void App::deactivate_main_surface() {
1008    this->layers.main_surface = -1;
1009    this->allocateWindowResource("deactivate",
1010                                 this->layers.main_surface_name.c_str(), nullptr,
1011                                 [](const char*){});
1012 }
1013
1014 /**
1015  * controller_hooks
1016  */
1017 void controller_hooks::surface_created(uint32_t surface_id) {
1018    this->app->surface_created(surface_id);
1019 }
1020
1021 void controller_hooks::surface_removed(uint32_t surface_id) {
1022    this->app->surface_removed(surface_id);
1023 }
1024
1025 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1026                                           uint32_t /*v*/) {}
1027
1028 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1029                                                      uint32_t /*x*/,
1030                                                      uint32_t /*y*/,
1031                                                      uint32_t /*w*/,
1032                                                      uint32_t /*h*/) {}
1033
1034 int App::allocateSurface() {
1035     HMI_DEBUG("wm", "Call");
1036
1037     // Get current/previous layers
1038     LayoutManager::TypeLayers crr_layers = this->lm_.getCurrentLayers();
1039     LayoutManager::TypeLayers prv_layers = this->lm_.getPreviousLayers();
1040
1041     // Update resource of all layers
1042     for (auto itr_layers = crr_layers.begin();
1043          itr_layers != crr_layers.end(); ++itr_layers) {
1044         // Get layer
1045         std::string layer = itr_layers->first;
1046         HMI_DEBUG("wm", "Try to update resource in %s layer", layer.c_str());
1047
1048         // If layout is changed, update resouce
1049         if (this->lm_.isLayoutChanged(layer.c_str())) {
1050             // Get current/previous layout
1051             LayoutManager::TypeLayouts crr_layout = itr_layers->second;
1052             LayoutManager::TypeLayouts prv_layout = prv_layers[layer];
1053
1054             // Get current/previous layout name
1055             std::string crr_layout_name = crr_layout.begin()->first;
1056             std::string prv_layout_name = prv_layout.begin()->first;
1057             HMI_DEBUG("wm", "layout name crr:%s prv:%s",
1058                       crr_layout_name.c_str(), prv_layout_name.c_str());
1059
1060             // Get current/previous ares
1061             LayoutManager::TypeAreas crr_areas = crr_layout[crr_layout_name];
1062             LayoutManager::TypeAreas prv_areas = prv_layout[prv_layout_name];
1063
1064             // Create previous displayed role list
1065             std::string prv_area_name;
1066             std::vector<std::string> prv_role_list;
1067             for (auto itr_areas = prv_areas.begin();
1068                  itr_areas != prv_areas.end(); ++itr_areas) {
1069                 prv_area_name = itr_areas->first;
1070                 prv_role_list.push_back(prv_areas[prv_area_name]["role"]);
1071                 HMI_DEBUG("wm", "previous displayed role:%s",
1072                           prv_areas[prv_area_name]["role"].c_str());
1073             }
1074
1075             // Allocate surface for each area
1076             std::string crr_area_name;
1077             std::string crr_role_name;
1078             LayoutManager::TypeRolCtg crr_rol_ctg;
1079             for (auto itr_areas = crr_areas.begin();
1080                  itr_areas != crr_areas.end(); ++itr_areas) {
1081                 crr_area_name = itr_areas->first;
1082                 crr_rol_ctg = itr_areas->second;
1083
1084                 // Get role of current area
1085                 if ("category" == crr_rol_ctg.begin()->first) {
1086                     // If current area have category
1087                     // Get category name
1088                     std::string crr_ctg = crr_rol_ctg.begin()->second;
1089
1090                     // Serch relevant role from previous displayed role list
1091                     for (auto itr_role = prv_role_list.begin();
1092                          itr_role != prv_role_list.end(); ++itr_role) {
1093                         std::string prv_ctg = this->pm_.roleToCategory((*itr_role).c_str());
1094                         if (crr_ctg == prv_ctg) {
1095                             // First discovered role is set to current role
1096                             crr_role_name = *itr_role;
1097
1098                             // Delete used role for other areas
1099                             // which have same category
1100                             prv_role_list.erase(itr_role);
1101
1102                             break;
1103                         }
1104                     }
1105                 }
1106                 else {
1107                     crr_role_name = itr_areas->second["role"];
1108                 }
1109                 HMI_DEBUG("wm", "Allocate surface for area:%s role:%s",
1110                           crr_area_name.c_str(), crr_role_name.c_str());
1111
1112                 // Deactivate non-displayed role
1113                 std::string prv_role_name;
1114                 if (crr_layout_name == prv_layout_name) {
1115                     HMI_DEBUG("wm", "Current layout is same with previous");
1116
1117                     // Deactivate previous role in same area
1118                     // if it is different with current
1119                     prv_role_name = prv_areas[crr_area_name]["role"];
1120                     if (crr_role_name != prv_role_name) {
1121                         this->deactivate(prv_role_name);
1122                     }
1123                 }
1124                 else {
1125                     HMI_DEBUG("wm", "Current layout is different with previous");
1126
1127                     if ("none" != prv_layout_name) {
1128                         // Deactivate previous role in all area in previous layout
1129                         // if it is different with current role
1130                         for(auto itr = prv_areas.begin(); itr != prv_areas.end(); ++itr) {
1131                             prv_role_name = itr->second["role"].c_str();
1132                             if (crr_role_name != prv_role_name) {
1133                                 this->deactivate(prv_role_name);
1134                             }
1135                         }
1136                     }
1137                 }
1138
1139                 // Set surface for displayed role
1140                 if ("none" != crr_layout_name) {
1141                     // If current layout is not "none",
1142                     // set surface for current role
1143                     this->setSurfaceSize(crr_role_name.c_str(), crr_area_name.c_str());
1144
1145                     // TODO:
1146                     // This API is workaround.
1147                     // Resource manager should manage each resource infomations
1148                     // according to architecture document.
1149                     this->lm_.updateArea(layer.c_str(), crr_role_name.c_str(), crr_area_name.c_str());
1150                 }
1151             }
1152         }
1153     }
1154     return 0;
1155 }
1156
1157 void App::setSurfaceSize(const char* role, const char* area) {
1158     HMI_DEBUG("wm", "role:%s area:%s", role, area);
1159
1160     // Get size of current area
1161     compositor::rect size = this->lm_.getAreaSize(area);
1162
1163     // Set destination to the display rectangle
1164     int surface_id = this->role2surfaceid_[role];
1165
1166     if (!this->controller->surface_exists(surface_id)) {
1167         // Block until all pending request are processed by wayland display server
1168         // because waiting for the surface of new app is created
1169         this->display->roundtrip();
1170     }
1171     auto &s = this->controller->surfaces[surface_id];
1172     s->set_destination_rectangle(size.x, size.y, size.w, size.h);
1173     this->layout_commit();
1174
1175     // Update area information
1176     this->area_info[surface_id].x = size.x;
1177     this->area_info[surface_id].y = size.y;
1178     this->area_info[surface_id].w = size.w;
1179     this->area_info[surface_id].h = size.h;
1180     HMI_DEBUG("wm", "Surface rect { %d, %d, %d, %d }",
1181               size.x, size.y, size.w, size.h);
1182
1183     // Emit syncDraw event
1184     const char* drawing_name = this->role2drawingname_[role].c_str();
1185     this->emit_syncdraw(drawing_name, area,
1186                         size.x, size.y, size.w, size.h);
1187
1188     // Enqueue flushDraw event
1189     this->enqueue_flushdraw(surface_id);
1190 }
1191
1192 void App::setAccelPedalPos(double val) {
1193     this->crr_car_info_.accel_pedal_pos = val;
1194 }
1195
1196 extern const char* kDefaultAppDb;
1197 int App::loadAppDb() {
1198     HMI_DEBUG("wm", "Call");
1199
1200     // Get afm application installed dir
1201     char const *afm_app_install_dir = getenv("AFM_APP_INSTALL_DIR");
1202     HMI_DEBUG("wm", "afm_app_install_dir:%s", afm_app_install_dir);
1203
1204     std::string file_name;
1205     if (!afm_app_install_dir) {
1206         HMI_ERROR("wm", "AFM_APP_INSTALL_DIR is not defined");
1207     }
1208     else {
1209         file_name = std::string(afm_app_install_dir) + std::string("/etc/app.db");
1210     }
1211
1212     // Load app.db
1213     json_object* json_obj;
1214     int ret = jh::inputJsonFilie(file_name.c_str(), &json_obj);
1215     if (0 > ret) {
1216         HMI_ERROR("wm", "Could not open app.db, so use default role information");
1217         json_obj = json_tokener_parse(kDefaultAppDb);
1218     }
1219     HMI_DEBUG("wm", "json_obj dump:%s", json_object_get_string(json_obj));
1220
1221     // Perse apps
1222     HMI_DEBUG("wm", "Perse apps");
1223     json_object* json_cfg;
1224     if (!json_object_object_get_ex(json_obj, "apps", &json_cfg)) {
1225         HMI_ERROR("wm", "Parse Error!!");
1226         return -1;
1227     }
1228
1229     int len = json_object_array_length(json_cfg);
1230     HMI_DEBUG("wm", "json_cfg len:%d", len);
1231     HMI_DEBUG("wm", "json_cfg dump:%s", json_object_get_string(json_cfg));
1232
1233     for (int i=0; i<len; i++) {
1234         json_object* json_tmp = json_object_array_get_idx(json_cfg, i);
1235         HMI_DEBUG("wm", "> json_tmp dump:%s", json_object_get_string(json_tmp));
1236
1237         const char* app = jh::getStringFromJson(json_tmp, "name");
1238         if (nullptr == app) {
1239             HMI_ERROR("wm", "Parse Error!!");
1240             return -1;
1241         }
1242         HMI_DEBUG("wm", "> app:%s", app);
1243
1244         const char* role = jh::getStringFromJson(json_tmp, "role");
1245         if (nullptr == role) {
1246             HMI_ERROR("wm", "Parse Error!!");
1247             return -1;
1248         }
1249         HMI_DEBUG("wm", "> role:%s", role);
1250
1251         this->drawingname2role_[app] = std::string(role);
1252     }
1253
1254     // Check
1255     for(auto itr = this->drawingname2role_.begin();
1256       itr != this->drawingname2role_.end(); ++itr) {
1257         HMI_DEBUG("wm", "app:%s role:%s",
1258                   itr->first.c_str(), itr->second.c_str());
1259     }
1260
1261     // Release json_object
1262     json_object_put(json_obj);
1263
1264     return 0;
1265 }
1266
1267
1268 const char* kDefaultAppDb = "{ \
1269     \"apps\": [ \
1270         { \
1271             \"name\": \"HomeScreen\", \
1272             \"role\": \"homescreen\" \
1273         }, \
1274         { \
1275             \"name\": \"Music\", \
1276             \"role\": \"music\" \
1277         }, \
1278         { \
1279             \"name\": \"MediaPlayer\", \
1280             \"role\": \"music\" \
1281         }, \
1282         { \
1283             \"name\": \"Video\", \
1284             \"role\": \"video\" \
1285         }, \
1286         { \
1287             \"name\": \"VideoPlayer\", \
1288             \"role\": \"video\" \
1289         }, \
1290         { \
1291             \"name\": \"WebBrowser\", \
1292             \"role\": \"browser\" \
1293         }, \
1294         { \
1295             \"name\": \"Radio\", \
1296             \"role\": \"radio\" \
1297         }, \
1298         { \
1299             \"name\": \"Phone\", \
1300             \"role\": \"phone\" \
1301         }, \
1302         { \
1303             \"name\": \"Navigation\", \
1304             \"role\": \"map\" \
1305         }, \
1306         { \
1307             \"name\": \"HVAC\", \
1308             \"role\": \"hvac\" \
1309         }, \
1310         { \
1311             \"name\": \"Settings\", \
1312             \"role\": \"settings\" \
1313         }, \
1314         { \
1315             \"name\": \"Dashboard\", \
1316             \"role\": \"dashboard\" \
1317         }, \
1318         { \
1319             \"name\": \"POI\", \
1320             \"role\": \"poi\" \
1321         }, \
1322         { \
1323             \"name\": \"Mixer\", \
1324             \"role\": \"mixer\" \
1325         } \
1326     ] \
1327 }";
1328
1329
1330 }  // namespace wm