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 namespace rm {
  97 App *context;
  98 static void eventHandler(json_object* json_out) {
  99     context->updateWindowResource(json_out);
 100 }
 101 }  // namespace rm
 102
 103 void App::updateWindowResource(json_object* json_out) {
 104     // Check parking brake state
 105     json_object* json_parking_brake;
 106     if (!json_object_object_get_ex(json_out, "parking_brake", &json_parking_brake)) {
 107         HMI_DEBUG("wm", "Not found key \"parking_brake\"");
 108         return;
 109     }
 110
 111     json_bool is_changed;
 112     is_changed = jh::getBoolFromJson(json_parking_brake, "is_changed");
 113     if (is_changed) {
 114         std::string parking_brake_state = jh::getStringFromJson(json_parking_brake, "state");
 115         HMI_DEBUG("wm", "parking_brake_state: %s", parking_brake_state.c_str());
 116
 117         // Update state and emit event
 118         if ("parking_brake_off" == parking_brake_state) {
 119             this->crr_car_info_.parking_brake_stt = false;
 120 #if 0 // FOR ALS: using lightstatus brake, so do not emit parking brake event
 121             this->emitParkingBrakeOff();
 122 #endif
 123         }
 124         else if ("parking_brake_on" == parking_brake_state) {
 125             this->crr_car_info_.parking_brake_stt = true;
 126 #if 0 // FOR ALS: using lightstatus brake, so do not emit parking brake event
 127             this->emitParkingBrakeOn();
 128 #endif
 129         }
 130         else {
 131             HMI_DEBUG("wm", "Unknown parking brake state");
 132             return;
 133         }
 134     }
 135
 136     // Check accelerator pedal state
 137     json_object* json_accel_pedal;
 138     if (!json_object_object_get_ex(json_out, "accel_pedal", &json_accel_pedal)) {
 139         HMI_DEBUG("wm", "Not found key \"accel_pedal\"");
 140         return;
 141     }
 142
 143     is_changed = jh::getBoolFromJson(json_accel_pedal, "is_changed");
 144     if (is_changed) {
 145         std::string accel_pedal_state = jh::getStringFromJson(json_accel_pedal, "state");
 146         HMI_DEBUG("wm", "accel_pedal_state: %s", accel_pedal_state.c_str());
 147
 148         // Update state
 149         if ("accel_pedal_off" == accel_pedal_state) {
 150             this->crr_car_info_.accel_pedal_stt = false;
 151         }
 152         else if ("accel_pedal_on" == accel_pedal_state) {
 153             this->crr_car_info_.accel_pedal_stt = true;
 154         }
 155         else {
 156             HMI_DEBUG("wm", "Unknown accel pedal state");
 157             return;
 158         }
 159     }
 160
 161     // Check lightstatus brake state
 162     json_object* json_lightstatus_brake;
 163     if (!json_object_object_get_ex(json_out, "lightstatus_brake", &json_lightstatus_brake)) {
 164         HMI_DEBUG("wm", "Not found key \"lightstatus_brake\"");
 165         return;
 166     }
 167
 168     is_changed = jh::getBoolFromJson(json_lightstatus_brake, "is_changed");
 169     if (is_changed) {
 170         std::string lightstatus_brake_state = jh::getStringFromJson(json_lightstatus_brake, "state");
 171         HMI_DEBUG("wm", "lightstatus_brake_state: %s", lightstatus_brake_state.c_str());
 172
 173         // Update state and emit event
 174         if ("lightstatus_brake_off" == lightstatus_brake_state) {
 175             this->crr_car_info_.lightstatus_brake_stt = false;
 176             this->emitLightstatusBrakeOff();
 177         }
 178         else if ("lightstatus_brake_on" == lightstatus_brake_state) {
 179             this->crr_car_info_.lightstatus_brake_stt = true;
 180             this->emitLightstatusBrakeOn();
 181         }
 182         else {
 183             HMI_DEBUG("wm", "Unknown lightstatus brake state");
 184             return;
 185         }
 186     }
 187
 188     // Check car state
 189     json_object* json_car;
 190     if (!json_object_object_get_ex(json_out, "car", &json_car)) {
 191         HMI_DEBUG("wm", "Not found key \"car\"");
 192         return;
 193     }
 194
 195     is_changed = jh::getBoolFromJson(json_car, "is_changed");
 196     if (is_changed) {
 197         std::string car_state = jh::getStringFromJson(json_car, "state");
 198         HMI_DEBUG("wm", "car_state: %s", car_state.c_str());
 199
 200         // Emit car event
 201         if ("car_stop" == car_state) {
 202             this->crr_car_info_.car_stt = "stop";
 203             this->emitCarStop();
 204         }
 205         else if ("car_run" == car_state) {
 206             this->crr_car_info_.car_stt = "run";
 207             this->emitCarRun();
 208         }
 209         else {
 210             HMI_DEBUG("wm", "Unknown car state");
 211             return;
 212         }
 213     }
 214
 215     // Check lamp state
 216     json_object* json_lamp;
 217     if (!json_object_object_get_ex(json_out, "lamp", &json_lamp)) {
 218         HMI_DEBUG("wm", "Not found key \"lamp\"");
 219         return;
 220     }
 221
 222     is_changed = jh::getBoolFromJson(json_lamp, "is_changed");
 223     if (is_changed) {
 224         std::string lamp_state = jh::getStringFromJson(json_lamp, "state");
 225         HMI_DEBUG("wm", "lamp_state: %s", lamp_state.c_str());
 226
 227         // Update state and emit event
 228         if ("lamp_off" == lamp_state) {
 229             this->crr_car_info_.headlamp_stt = false;
 230             this->emitHeadlampOff();
 231         }
 232         else if ("lamp_on" == lamp_state) {
 233             this->crr_car_info_.headlamp_stt = true;
 234             this->emitHeadlampOn();
 235         }
 236         else {
 237             HMI_DEBUG("wm", "Unknown lamp state");
 238             return;
 239         }
 240     }
 241
 242     // Get displayed roles from current layout
 243     json_object* json_layers;
 244     if (!json_object_object_get_ex(json_out, "layers", &json_layers)) {
 245         HMI_DEBUG("wm", "Not found key \"layers\"");
 246         return;
 247     }
 248
 249     int len = json_object_array_length(json_layers);
 250     HMI_DEBUG("wm", "json_layers len:%d", len);
 251     HMI_DEBUG("wm", "json_layers dump:%s", json_object_get_string(json_layers));
 252
 253     for (int i=0; i<len; i++) {
 254         json_object* json_tmp = json_object_array_get_idx(json_layers, i);
 255
 256         std::string layer_name = jh::getStringFromJson(json_tmp, "name");
 257         json_bool changed = jh::getBoolFromJson(json_tmp, "changed");
 258         HMI_DEBUG("wm", "layer:%s changed:%d", layer_name.c_str(), changed);
 259
 260         if (changed) {
 261             json_object* json_areas;
 262             if (!json_object_object_get_ex(json_tmp, "areas", &json_areas)) {
 263                 HMI_DEBUG("wm", "Not found key \"areas\"");
 264                 return;
 265             }
 266
 267             int len = json_object_array_length(json_areas);
 268             HMI_DEBUG("wm", "json_layers len:%d", len);
 269
 270             RoleState nxt_roles;
 271             RoleState crr_roles = this->crr_layer_state[layer_name];
 272             for (int j=0; j<len; j++) {
 273                 json_object* json_tmp2 = json_object_array_get_idx(json_areas, j);
 274
 275                 std::string area_name = jh::getStringFromJson(json_tmp2, "name");
 276                 std::string role_name = jh::getStringFromJson(json_tmp2, "role");
 277
 278                 nxt_roles[role_name] = area_name;
 279
 280                 auto i_crr = crr_roles.find(role_name);
 281                 HMI_DEBUG("wm", "next role:%s area:%s",
 282                           role_name.c_str(), area_name.c_str());
 283
 284                 // If next role does not exist in current
 285                 if (crr_roles.end() == i_crr) {
 286                     HMI_DEBUG("wm", "next role does not exist in current");
 287
 288                     // Set surface size
 289                     this->setSurfaceSize(role_name.c_str(), area_name.c_str());
 290                 }
 291                 else {
 292                     HMI_DEBUG("wm", "current role:%s area:%s",
 293                               i_crr->first.c_str(), i_crr->second.c_str());
 294
 295                     // If next role exists in current and area is different with current
 296                     if (area_name != i_crr->second) {
 297                         HMI_DEBUG("wm", "next role exists in current and area is different with current");
 298
 299                         // Set surface size
 300                         this->setSurfaceSize(role_name.c_str(), area_name.c_str());
 301                     }
 302
 303                     // Remove role which exist in next list from current list
 304                     crr_roles.erase(i_crr);
 305                 }
 306             }
 307
 308             // Deactivate roles which remains in current list
 309             // because these are not displayed in next layout
 310             for (auto i_crr : crr_roles) {
 311                 HMI_DEBUG("wm", "Deactivate role:%s", i_crr.first.c_str());
 312
 313                 // Deactivate
 314                 this->deactivate(i_crr.first.c_str());
 315             }
 316
 317             // Update current role list
 318             this->crr_layer_state[layer_name] = nxt_roles;
 319         }
 320     }
 321 }
 322
 323
 324 /**
 325  * App Impl
 326  */
 327 App::App(wl::display *d)
 328    : chooks{this},
 329      display{d},
 330      controller{},
 331      outputs(),
 332      config(),
 333      layers(),
 334      id_alloc{},
 335      pending_events(false),
 336      policy{} {
 337    try {
 338       {
 339          auto l = load_layer_map(
 340             this->config.get_string("layers.json").value().c_str());
 341          if (l.is_ok()) {
 342             this->layers = l.unwrap();
 343          } else {
 344             HMI_ERROR("wm", "%s", l.err().value());
 345          }
 346       }
 347    } catch (std::exception &e) {
 348       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 349    }
 350
 351    // Initialize current car info
 352    this->crr_car_info_.parking_brake_stt = true;
 353    this->crr_car_info_.accel_pedal_stt = false;
 354    this->crr_car_info_.accel_pedal_pos = 0;
 355    this->crr_car_info_.car_stt = "stop";
 356    this->crr_car_info_.headlamp_stt = false;
 357 }
 358
 359 int App::init() {
 360    if (!this->display->ok()) {
 361       return -1;
 362    }
 363
 364    if (this->layers.mapping.empty()) {
 365       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 366       return -1;
 367    }
 368
 369    // Store my context for calling callback for PolicyManager
 370    rm::context = this;
 371
 372 #if 1 // @@@@@
 373    // Load app.db
 374    this->loadAppDb();
 375 #endif
 376
 377    // Initialize PolicyManager
 378    this->pm_.initialize();
 379
 380    // Register callback to PolicyManager
 381    PolicyManager::CallbackTable callback;
 382    callback.onStateTransitioned = rm::eventHandler;
 383    callback.onError = nullptr;
 384    this->pm_.registerCallback(callback);
 385
 386    // Initialize LayoutManager
 387    this->lm_.initialize();
 388
 389    // Make afb event
 390    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 391       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 392    }
 393
 394    this->display->add_global_handler(
 395       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 396          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 397       });
 398
 399    this->display->add_global_handler(
 400       "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 401          this->controller =
 402             std::make_unique<struct compositor::controller>(r, name, v);
 403
 404          // Init controller hooks
 405          this->controller->chooks = &this->chooks;
 406
 407          // This protocol needs the output, so lets just add our mapping here...
 408          this->controller->add_proxy_to_id_mapping(
 409             this->outputs.back()->proxy.get(),
 410             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 411                this->outputs.back()->proxy.get())));
 412
 413          // Create screen
 414          this->controller->create_screen(this->outputs.back()->proxy.get());
 415
 416          // Set display to controller
 417          this->controller->display = this->display;
 418       });
 419
 420    // First level objects
 421    this->display->roundtrip();
 422    // Second level objects
 423    this->display->roundtrip();
 424    // Third level objects
 425    this->display->roundtrip();
 426
 427    return init_layers();
 428 }
 429
 430 int App::dispatch_pending_events() {
 431    if (this->pop_pending_events()) {
 432       this->display->dispatch_pending();
 433       return 0;
 434    }
 435    return -1;
 436 }
 437
 438 bool App::pop_pending_events() {
 439    bool x{true};
 440    return this->pending_events.compare_exchange_strong(
 441       x, false, std::memory_order_consume);
 442 }
 443
 444 void App::set_pending_events() {
 445    this->pending_events.store(true, std::memory_order_release);
 446 }
 447
 448 optional<int> App::lookup_id(char const *name) {
 449    return this->id_alloc.lookup(std::string(name));
 450 }
 451 optional<std::string> App::lookup_name(int id) {
 452    return this->id_alloc.lookup(id);
 453 }
 454
 455 /**
 456  * init_layers()
 457  */
 458 int App::init_layers() {
 459    if (!this->controller) {
 460       HMI_ERROR("wm", "ivi_controller global not available");
 461       return -1;
 462    }
 463
 464    if (this->outputs.empty()) {
 465       HMI_ERROR("wm", "no output was set up!");
 466       return -1;
 467    }
 468
 469    auto &c = this->controller;
 470
 471    auto &o = this->outputs.front();
 472    auto &s = c->screens.begin()->second;
 473    auto &layers = c->layers;
 474
 475    // Write output dimensions to ivi controller...
 476    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 477    c->physical_size = compositor::size{uint32_t(o->physical_width),
 478                                        uint32_t(o->physical_height)};
 479
 480    // Clear scene
 481    layers.clear();
 482
 483    // Clear screen
 484    s->clear();
 485
 486    // Quick and dirty setup of layers
 487    for (auto const &i : this->layers.mapping) {
 488       c->layer_create(i.second.layer_id, o->width, o->height);
 489       auto &l = layers[i.second.layer_id];
 490       l->set_destination_rectangle(0, 0, o->width, o->height);
 491       l->set_visibility(1);
 492       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 493                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 494    }
 495
 496    // Add layers to screen
 497    s->set_render_order(this->layers.layers);
 498
 499    this->layout_commit();
 500
 501    return 0;
 502 }
 503
 504 void App::layout_commit() {
 505    this->controller->commit_changes();
 506    this->display->flush();
 507 }
 508
 509 const char* App::convertDrawingNameToRole(char const *drawing_name) {
 510     const char* role;
 511
 512     if (this->drawingname2role_.find(drawing_name) != this->drawingname2role_.end()) {
 513         // drawing_name is old role. So convert to new role.
 514         role = this->drawingname2role_[drawing_name].c_str();
 515     }
 516     else {
 517         // drawing_name is new role.
 518         role = drawing_name;
 519     }
 520     HMI_DEBUG("wm", "drawing_name:%s -> role: %s", drawing_name, role);
 521
 522     return role;
 523 }
 524
 525 void App::allocateWindowResource(char const *event, char const *drawing_name,
 526                                  char const *drawing_area, const reply_func &reply) {
 527     const char* new_role = nullptr;
 528     const char* new_area = nullptr;
 529
 530     // Convert old role to new role
 531     if ((nullptr != drawing_name) && (0 != strcmp("", drawing_name))) {
 532         new_role = this->convertDrawingNameToRole(drawing_name);
 533     }
 534
 535     if (0 == strcmp("activate", event)) {
 536         // TODO:
 537         // This process will be removed
 538         // because the area "normal.full" and "normalfull" will be prohibited
 539         {
 540             if (0 == strcmp("restriction", new_role)) {
 541                 new_area = drawing_area;
 542             }
 543             else {
 544                 if (nullptr == drawing_area) {
 545                     new_area = "normal";
 546                 }
 547                 else if (0 == strcmp("normal.full", drawing_area)) {
 548                     new_area = "normal";
 549                 }
 550                 else if (0 == strcmp("restriction.split.sub", drawing_area)) {
 551                     new_area = "restriction.split.sub";
 552                 }
 553                 else if (0 == strcmp("homescreen", new_role)) {
 554                     // Now homescreen specifies "normalfull"
 555                     new_area = "fullscreen";
 556                 }
 557                 else {
 558                     new_area = "normal";
 559                 }
 560             }
 561             HMI_DEBUG("wm", "drawing_area:%s, new_area: %s", drawing_area, new_area);
 562         }
 563     }
 564     else if (0 == strcmp("deactivate", event)) {
 565         new_area = "";
 566     }
 567
 568     // TODO:
 569     // Check role
 570
 571     // TODO:
 572     // If event is "activate" and area is not specifid,
 573     // get default value by using role
 574
 575     // Input event to PolicyManager
 576     json_object* json_in = json_object_new_object();
 577     json_object_object_add(json_in, "event", json_object_new_string(event));
 578     if (nullptr != new_role) {
 579         json_object_object_add(json_in, "role", json_object_new_string(new_role));
 580     }
 581     if (nullptr != new_area) {
 582         json_object_object_add(json_in, "area", json_object_new_string(new_area));
 583     }
 584
 585     // Set input event data
 586     this->pm_.setInputEventData(json_in);
 587
 588     // Execute state transition
 589     this->pm_.executeStateTransition();
 590
 591     // Release json_object
 592     json_object_put(json_in);
 593
 594     return;
 595 }
 596
 597 void App::enqueue_flushdraw(int surface_id) {
 598    this->check_flushdraw(surface_id);
 599    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 600    this->pending_end_draw.push_back(surface_id);
 601 }
 602
 603 void App::check_flushdraw(int surface_id) {
 604    auto i = std::find(std::begin(this->pending_end_draw),
 605                       std::end(this->pending_end_draw), surface_id);
 606    if (i != std::end(this->pending_end_draw)) {
 607       auto n = this->lookup_name(surface_id);
 608       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 609                n ? n->c_str() : "unknown-name", surface_id);
 610       std::swap(this->pending_end_draw[std::distance(
 611                    std::begin(this->pending_end_draw), i)],
 612                 this->pending_end_draw.back());
 613       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 614    }
 615 }
 616
 617 void App::api_enddraw(char const *drawing_name) {
 618    // Convert drawing_name to role
 619    const char* role = this->convertDrawingNameToRole(drawing_name);
 620
 621    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 622       auto n = this->lookup_name(this->pending_end_draw[i]);
 623       if (n && *n == role) {
 624          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 625          this->pending_end_draw.resize(iend - 1);
 626          this->activate(this->pending_end_draw[i]);
 627          this->emit_flushdraw(drawing_name);
 628       }
 629    }
 630 }
 631
 632 void App::api_ping() { this->dispatch_pending_events(); }
 633
 634 void App::send_event(char const *evname){
 635    HMI_DEBUG("wm", "%s: %s", __func__, evname);
 636
 637    int ret = afb_event_push(this->map_afb_event[evname], nullptr);
 638    if (ret != 0) {
 639       HMI_DEBUG("wm", "afb_event_push failed: %m");
 640    }
 641 }
 642
 643 void App::send_event(char const *evname, char const *label){
 644    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 645
 646    json_object *j = json_object_new_object();
 647    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 648
 649    int ret = afb_event_push(this->map_afb_event[evname], j);
 650    if (ret != 0) {
 651       HMI_DEBUG("wm", "afb_event_push failed: %m");
 652    }
 653 }
 654
 655 void App::send_event(char const *evname, char const *label, char const *area,
 656                              int x, int y, int w, int h) {
 657    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 658              __func__, evname, label, area, x, y, w, h);
 659
 660    json_object *j_rect = json_object_new_object();
 661    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 662    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 663    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 664    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 665
 666    json_object *j = json_object_new_object();
 667    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 668    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 669    json_object_object_add(j, kKeyDrawingRect, j_rect);
 670
 671    int ret = afb_event_push(this->map_afb_event[evname], j);
 672    if (ret != 0) {
 673       HMI_DEBUG("wm", "afb_event_push failed: %m");
 674    }
 675 }
 676
 677 /**
 678  * proxied events
 679  */
 680 void App::surface_created(uint32_t surface_id) {
 681    auto layer_id = this->layers.get_layer_id(surface_id);
 682    if (!layer_id) {
 683       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 684                surface_id);
 685       return;
 686    }
 687
 688    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 689
 690    this->controller->layers[*layer_id]->add_surface(surface_id);
 691    this->layout_commit();
 692    // activate the main_surface right away
 693    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 694       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 695
 696       this->api_activate_surface(
 697          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 698    }*/
 699 }
 700
 701 void App::surface_removed(uint32_t surface_id) {
 702    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 703
 704    // We cannot normally deactivate the main_surface, so be explicit
 705    // about it:
 706    if (int(surface_id) == this->layers.main_surface) {
 707       this->deactivate_main_surface();
 708    } else {
 709       auto role = this->lookup_name(surface_id);
 710       if (role) {
 711          this->allocateWindowResource("deactivate",
 712                                       role->c_str(), nullptr,
 713                                       [](const char*){});
 714       }
 715    }
 716
 717    this->id_alloc.remove_id(surface_id);
 718    this->layers.remove_surface(surface_id);
 719 }
 720
 721 void App::emit_activated(char const *label) {
 722    this->send_event(kListEventName[Event_Active], label);
 723 }
 724
 725 void App::emit_deactivated(char const *label) {
 726    this->send_event(kListEventName[Event_Inactive], label);
 727 }
 728
 729 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 730    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 731 }
 732
 733 void App::emit_flushdraw(char const *label) {
 734    this->send_event(kListEventName[Event_FlushDraw], label);
 735 }
 736
 737 void App::emit_visible(char const *label, bool is_visible) {
 738    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 739 }
 740
 741 void App::emit_invisible(char const *label) {
 742    return emit_visible(label, false);
 743 }
 744
 745 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 746
 747 void App::emitHeadlampOff() {
 748     // Send HeadlampOff event for all application
 749     this->send_event(kListEventName[Event_HeadlampOff]);
 750 }
 751
 752 void App::emitHeadlampOn() {
 753     // Send HeadlampOn event for all application
 754     this->send_event(kListEventName[Event_HeadlampOn]);
 755 }
 756
 757 void App::emitParkingBrakeOff() {
 758     // Send ParkingBrakeOff event for all application
 759     this->send_event(kListEventName[Event_ParkingBrakeOff]);
 760 }
 761
 762 void App::emitParkingBrakeOn() {
 763     // Send ParkingBrakeOn event for all application
 764     this->send_event(kListEventName[Event_ParkingBrakeOn]);
 765 }
 766
 767 void App::emitLightstatusBrakeOff() {
 768     // Send LightstatusBrakeOff event for all application
 769     this->send_event(kListEventName[Event_LightstatusBrakeOff]);
 770 }
 771
 772 void App::emitLightstatusBrakeOn() {
 773     // Send LightstatusBrakeOn event for all application
 774     this->send_event(kListEventName[Event_LightstatusBrakeOn]);
 775 }
 776
 777 void App::emitCarStop() {
 778     // Send CarStop event for all application
 779     this->send_event(kListEventName[Event_CarStop]);
 780 }
 781
 782 void App::emitCarRun() {
 783     // Send CarRun event for all application
 784     this->send_event(kListEventName[Event_CarRun]);
 785 }
 786
 787 result<int> App::api_request_surface(char const *drawing_name) {
 788    // Convert drawing_name to role
 789    const char* role = this->convertDrawingNameToRole(drawing_name);
 790
 791    auto lid = this->layers.get_layer_id(std::string(role));
 792    if (!lid) {
 793       /**
 794        * register drawing_name as fallback and make it displayed.
 795        */
 796       lid = this->layers.get_layer_id(std::string("Fallback"));
 797       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 798       if(!lid){
 799           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 800       }
 801    }
 802
 803    auto rname = this->lookup_id(role);
 804    if (!rname) {
 805       // name does not exist yet, allocate surface id...
 806       auto id = int(this->id_alloc.generate_id(role));
 807       this->layers.add_surface(id, *lid);
 808
 809       // set the main_surface[_name] here and now
 810       if (!this->layers.main_surface_name.empty() &&
 811           this->layers.main_surface_name == drawing_name) {
 812          this->layers.main_surface = id;
 813          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 814       }
 815
 816       // Set map of (role, drawing_name)
 817       this->role2drawingname_[role] = std::string(drawing_name);
 818
 819       return Ok<int>(id);
 820    }
 821
 822    // Check currently registered drawing names if it is already there.
 823    return Err<int>("Surface already present");
 824 }
 825
 826 char const *App::api_request_surface(char const *drawing_name,
 827                                      char const *ivi_id) {
 828    ST();
 829    // Convert drawing_name to role
 830    const char* role = this->convertDrawingNameToRole(drawing_name);
 831
 832    auto lid = this->layers.get_layer_id(std::string(role));
 833    unsigned sid = std::stol(ivi_id);
 834
 835    if (!lid) {
 836       /**
 837        * register drawing_name as fallback and make it displayed.
 838        */
 839       lid = this->layers.get_layer_id(std::string("Fallback"));
 840       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 841       if(!lid){
 842           return "Drawing name does not match any role, Fallback is disabled";
 843       }
 844    }
 845
 846    auto rname = this->lookup_id(role);
 847
 848    if (rname) {
 849        return "Surface already present";
 850    }
 851
 852    // register pair drawing_name and ivi_id
 853    this->id_alloc.register_name_id(role, sid);
 854    this->layers.add_surface(sid, *lid);
 855
 856    // this surface is already created
 857    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 858
 859    this->controller->layers[*lid]->add_surface(sid);
 860    this->layout_commit();
 861
 862    return nullptr;
 863 }
 864
 865 result<json_object *> App::api_get_display_info() {
 866    // Check controller
 867    if (!this->controller) {
 868       return Err<json_object *>("ivi_controller global not available");
 869    }
 870
 871    // Set display info
 872    compositor::size o_size = this->controller->output_size;
 873    compositor::size p_size = this->controller->physical_size;
 874
 875    json_object *object = json_object_new_object();
 876    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 877    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 878    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 879    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 880
 881    return Ok<json_object *>(object);
 882 }
 883
 884 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 885    HMI_DEBUG("wm", "called");
 886
 887    // Convert drawing_name to role
 888    const char* role = this->convertDrawingNameToRole(drawing_name);
 889
 890    // Check drawing name, surface/layer id
 891    auto const &surface_id = this->lookup_id(role);
 892    if (!surface_id) {
 893       return Err<json_object *>("Surface does not exist");
 894    }
 895
 896    if (!this->controller->surface_exists(*surface_id)) {
 897       return Err<json_object *>("Surface does not exist in controller!");
 898    }
 899
 900    auto layer_id = this->layers.get_layer_id(*surface_id);
 901    if (!layer_id) {
 902       return Err<json_object *>("Surface is not on any layer!");
 903    }
 904
 905    auto o_state = *this->layers.get_layout_state(*surface_id);
 906    if (o_state == nullptr) {
 907       return Err<json_object *>("Could not find layer for surface");
 908    }
 909
 910    struct LayoutState &state = *o_state;
 911    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 912       return Err<json_object *>("Surface is inactive");
 913    }
 914
 915    // Set area rectangle
 916    compositor::rect area_info = this->area_info[*surface_id];
 917    json_object *object = json_object_new_object();
 918    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 919    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 920    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 921    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 922
 923    return Ok<json_object *>(object);
 924 }
 925
 926 void App::activate(int id) {
 927    auto ip = this->controller->sprops.find(id);
 928    if (ip != this->controller->sprops.end()) {
 929       this->controller->surfaces[id]->set_visibility(1);
 930       char const *label =
 931          this->lookup_name(id).value_or("unknown-name").c_str();
 932
 933       if ((0 == strcmp(label, "radio"))
 934           || (0 == strcmp(label, "music"))
 935           || (0 == strcmp(label, "map"))) {
 936         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 937             if (id == *i) {
 938                // Remove id
 939                this->surface_bg.erase(i);
 940
 941                // Remove from BG layer (999)
 942                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 943                this->controller->layers[999]->remove_surface(id);
 944
 945                // Add to FG layer (1001)
 946                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 947                this->controller->layers[1001]->add_surface(id);
 948
 949                for (int j : this->surface_bg) {
 950                  HMI_DEBUG("wm", "Stored id:%d", j);
 951                }
 952                break;
 953             }
 954          }
 955       }
 956
 957       this->layout_commit();
 958
 959       this->emit_visible(label);
 960       this->emit_activated(label);
 961    }
 962 }
 963
 964 void App::deactivate(int id) {
 965    auto ip = this->controller->sprops.find(id);
 966    if (ip != this->controller->sprops.end()) {
 967       char const *label =
 968          this->lookup_name(id).value_or("unknown-name").c_str();
 969
 970       if ((0 == strcmp(label, "radio"))
 971           || (0 == strcmp(label, "music"))
 972           || (0 == strcmp(label, "map"))) {
 973
 974          // Store id
 975          this->surface_bg.push_back(id);
 976
 977          // Remove from FG layer (1001)
 978          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 979          this->controller->layers[1001]->remove_surface(id);
 980
 981          // Add to BG layer (999)
 982          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 983          this->controller->layers[999]->add_surface(id);
 984
 985          for (int j : surface_bg) {
 986             HMI_DEBUG("wm", "Stored id:%d", j);
 987          }
 988       }
 989       else {
 990          this->controller->surfaces[id]->set_visibility(0);
 991       }
 992
 993       this->layout_commit();
 994
 995       this->emit_deactivated(label);
 996       this->emit_invisible(label);
 997    }
 998 }
 999
1000 void App::deactivate(std::string role) {
1001     auto const &id = this->lookup_id(role.c_str());
1002     if (!id) {
1003       HMI_ERROR("wm", "Surface does not exist");
1004       return;
1005     }
1006     std::string drawing_name = this->role2drawingname_[role];
1007     HMI_DEBUG("wm", "Deactivate role:%s (drawing_name:%s)",
1008               role.c_str(), drawing_name.c_str());
1009
1010     this->deactivate(*id);
1011 }
1012
1013 void App::deactivate_main_surface() {
1014    this->layers.main_surface = -1;
1015    this->allocateWindowResource("deactivate",
1016                                 this->layers.main_surface_name.c_str(), nullptr,
1017                                 [](const char*){});
1018 }
1019
1020 /**
1021  * controller_hooks
1022  */
1023 void controller_hooks::surface_created(uint32_t surface_id) {
1024    this->app->surface_created(surface_id);
1025 }
1026
1027 void controller_hooks::surface_removed(uint32_t surface_id) {
1028    this->app->surface_removed(surface_id);
1029 }
1030
1031 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1032                                           uint32_t /*v*/) {}
1033
1034 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1035                                                      uint32_t /*x*/,
1036                                                      uint32_t /*y*/,
1037                                                      uint32_t /*w*/,
1038                                                      uint32_t /*h*/) {}
1039
1040 void App::setSurfaceSize(const char* role, const char* area) {
1041     HMI_DEBUG("wm", "role:%s area:%s", role, area);
1042
1043     // Get size of current area
1044     compositor::rect size = this->lm_.getAreaSize(area);
1045
1046     // Set destination to the display rectangle
1047     auto const &surface_id = this->lookup_id(role);
1048     if (!this->controller->surface_exists(*surface_id)) {
1049         // Block until all pending request are processed by wayland display server
1050         // because waiting for the surface of new app is created
1051         this->display->roundtrip();
1052     }
1053     auto &s = this->controller->surfaces[*surface_id];
1054     s->set_destination_rectangle(size.x, size.y, size.w, size.h);
1055     this->layout_commit();
1056
1057     // Update area information
1058     this->area_info[*surface_id].x = size.x;
1059     this->area_info[*surface_id].y = size.y;
1060     this->area_info[*surface_id].w = size.w;
1061     this->area_info[*surface_id].h = size.h;
1062     HMI_DEBUG("wm", "Surface rect { %d, %d, %d, %d }",
1063               size.x, size.y, size.w, size.h);
1064
1065     // Emit syncDraw event
1066     const char* drawing_name = this->role2drawingname_[role].c_str();
1067     this->emit_syncdraw(drawing_name, area,
1068                         size.x, size.y, size.w, size.h);
1069
1070     // Enqueue flushDraw event
1071     this->enqueue_flushdraw(*surface_id);
1072 }
1073
1074 void App::setAccelPedalPos(double val) {
1075     this->crr_car_info_.accel_pedal_pos = val;
1076 }
1077
1078 extern const char* kDefaultAppDb;
1079 int App::loadAppDb() {
1080     HMI_DEBUG("wm", "Call");
1081
1082     // Get afm application installed dir
1083     char const *afm_app_install_dir = getenv("AFM_APP_INSTALL_DIR");
1084     HMI_DEBUG("wm", "afm_app_install_dir:%s", afm_app_install_dir);
1085
1086     std::string file_name;
1087     if (!afm_app_install_dir) {
1088         HMI_ERROR("wm", "AFM_APP_INSTALL_DIR is not defined");
1089     }
1090     else {
1091         file_name = std::string(afm_app_install_dir) + std::string("/etc/app.db");
1092     }
1093
1094     // Load app.db
1095     json_object* json_obj;
1096     int ret = jh::inputJsonFilie(file_name.c_str(), &json_obj);
1097     if (0 > ret) {
1098         HMI_ERROR("wm", "Could not open app.db, so use default role information");
1099         json_obj = json_tokener_parse(kDefaultAppDb);
1100     }
1101     HMI_DEBUG("wm", "json_obj dump:%s", json_object_get_string(json_obj));
1102
1103     // Perse apps
1104     HMI_DEBUG("wm", "Perse apps");
1105     json_object* json_cfg;
1106     if (!json_object_object_get_ex(json_obj, "apps", &json_cfg)) {
1107         HMI_ERROR("wm", "Parse Error!!");
1108         return -1;
1109     }
1110
1111     int len = json_object_array_length(json_cfg);
1112     HMI_DEBUG("wm", "json_cfg len:%d", len);
1113     HMI_DEBUG("wm", "json_cfg dump:%s", json_object_get_string(json_cfg));
1114
1115     for (int i=0; i<len; i++) {
1116         json_object* json_tmp = json_object_array_get_idx(json_cfg, i);
1117         HMI_DEBUG("wm", "> json_tmp dump:%s", json_object_get_string(json_tmp));
1118
1119         const char* app = jh::getStringFromJson(json_tmp, "name");
1120         if (nullptr == app) {
1121             HMI_ERROR("wm", "Parse Error!!");
1122             return -1;
1123         }
1124         HMI_DEBUG("wm", "> app:%s", app);
1125
1126         const char* role = jh::getStringFromJson(json_tmp, "role");
1127         if (nullptr == role) {
1128             HMI_ERROR("wm", "Parse Error!!");
1129             return -1;
1130         }
1131         HMI_DEBUG("wm", "> role:%s", role);
1132
1133         this->drawingname2role_[app] = std::string(role);
1134     }
1135
1136     // Check
1137     for(auto itr = this->drawingname2role_.begin();
1138       itr != this->drawingname2role_.end(); ++itr) {
1139         HMI_DEBUG("wm", "app:%s role:%s",
1140                   itr->first.c_str(), itr->second.c_str());
1141     }
1142
1143     // Release json_object
1144     json_object_put(json_obj);
1145
1146     return 0;
1147 }
1148
1149
1150 const char* kDefaultAppDb = "{ \
1151     \"apps\": [ \
1152         { \
1153             \"name\": \"HomeScreen\", \
1154             \"role\": \"homescreen\" \
1155         }, \
1156         { \
1157             \"name\": \"Music\", \
1158             \"role\": \"music\" \
1159         }, \
1160         { \
1161             \"name\": \"MediaPlayer\", \
1162             \"role\": \"music\" \
1163         }, \
1164         { \
1165             \"name\": \"Video\", \
1166             \"role\": \"video\" \
1167         }, \
1168         { \
1169             \"name\": \"VideoPlayer\", \
1170             \"role\": \"video\" \
1171         }, \
1172         { \
1173             \"name\": \"WebBrowser\", \
1174             \"role\": \"browser\" \
1175         }, \
1176         { \
1177             \"name\": \"Radio\", \
1178             \"role\": \"radio\" \
1179         }, \
1180         { \
1181             \"name\": \"Phone\", \
1182             \"role\": \"phone\" \
1183         }, \
1184         { \
1185             \"name\": \"Navigation\", \
1186             \"role\": \"map\" \
1187         }, \
1188         { \
1189             \"name\": \"HVAC\", \
1190             \"role\": \"hvac\" \
1191         }, \
1192         { \
1193             \"name\": \"Settings\", \
1194             \"role\": \"settings\" \
1195         }, \
1196         { \
1197             \"name\": \"Dashboard\", \
1198             \"role\": \"dashboard\" \
1199         }, \
1200         { \
1201             \"name\": \"POI\", \
1202             \"role\": \"poi\" \
1203         }, \
1204         { \
1205             \"name\": \"Mixer\", \
1206             \"role\": \"mixer\" \
1207         } \
1208     ] \
1209 }";
1210
1211
1212 }  // namespace wm