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.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
  38
  39 namespace wm {
  40
  41 namespace {
  42
  43 using nlohmann::json;
  44
  45 result<json> file_to_json(char const *filename) {
  46    json j;
  47    std::ifstream i(filename);
  48    if (i.fail()) {
  49       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  50       j = default_layers_json;
  51    }
  52    else {
  53       i >> j;
  54    }
  55
  56    return Ok(j);
  57 }
  58
  59 struct result<layer_map> load_layer_map(char const *filename) {
  60    HMI_DEBUG("wm", "loading IDs from %s", filename);
  61
  62    auto j = file_to_json(filename);
  63    if (j.is_err()) {
  64       return Err<layer_map>(j.unwrap_err());
  65    }
  66    json jids = j.unwrap();
  67
  68    return to_layer_map(jids);
  69 }
  70
  71 }  // namespace
  72
  73
  74 /**
  75  * App Impl
  76  */
  77 App::App(wl::display *d)
  78    : chooks{this},
  79      display{d},
  80      controller{},
  81      outputs(),
  82      config(),
  83      layers(),
  84      id_alloc{},
  85      pending_events(false),
  86      policy{} {
  87    try {
  88       {
  89          auto l = load_layer_map(
  90             this->config.get_string("layers.json").value().c_str());
  91          if (l.is_ok()) {
  92             this->layers = l.unwrap();
  93          } else {
  94             HMI_ERROR("wm", "%s", l.err().value());
  95          }
  96       }
  97    } catch (std::exception &e) {
  98       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
  99    }
 100 }
 101
 102 int App::init() {
 103    if (!this->display->ok()) {
 104       return -1;
 105    }
 106
 107    if (this->layers.mapping.empty()) {
 108       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 109       return -1;
 110    }
 111
 112    // Make afb event
 113    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 114       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 115    }
 116
 117    this->display->add_global_handler(
 118       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 119          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 120       });
 121
 122    this->display->add_global_handler(
 123       "ivi_controller", [this](wl_registry *r, uint32_t name, uint32_t v) {
 124          this->controller =
 125             std::make_unique<struct compositor::controller>(r, name, v);
 126
 127          // Init controller hooks
 128          this->controller->chooks = &this->chooks;
 129
 130          // This protocol needs the output, so lets just add our mapping here...
 131          this->controller->add_proxy_to_id_mapping(
 132             this->outputs.back()->proxy.get(),
 133             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 134                this->outputs.back()->proxy.get())));
 135       });
 136
 137    // First level objects
 138    this->display->roundtrip();
 139    // Second level objects
 140    this->display->roundtrip();
 141    // Third level objects
 142    this->display->roundtrip();
 143
 144    return init_layers();
 145 }
 146
 147 int App::dispatch_events() {
 148    if (this->dispatch_events() == 0) {
 149       return 0;
 150    }
 151
 152    int ret = this->display->dispatch();
 153    if (ret == -1) {
 154       HMI_ERROR("wm", "wl_display_dipatch() returned error %d",
 155                this->display->get_error());
 156       return -1;
 157    }
 158    this->display->flush();
 159
 160    return 0;
 161 }
 162
 163 int App::dispatch_pending_events() {
 164    if (this->pop_pending_events()) {
 165       this->display->dispatch_pending();
 166       return 0;
 167    }
 168    return -1;
 169 }
 170
 171 bool App::pop_pending_events() {
 172    bool x{true};
 173    return this->pending_events.compare_exchange_strong(
 174       x, false, std::memory_order_consume);
 175 }
 176
 177 void App::set_pending_events() {
 178    this->pending_events.store(true, std::memory_order_release);
 179 }
 180
 181 optional<int> App::lookup_id(char const *name) {
 182    return this->id_alloc.lookup(std::string(name));
 183 }
 184 optional<std::string> App::lookup_name(int id) {
 185    return this->id_alloc.lookup(id);
 186 }
 187
 188 /**
 189  * init_layers()
 190  */
 191 int App::init_layers() {
 192    if (!this->controller) {
 193       HMI_ERROR("wm", "ivi_controller global not available");
 194       return -1;
 195    }
 196
 197    if (this->outputs.empty()) {
 198       HMI_ERROR("wm", "no output was set up!");
 199       return -1;
 200    }
 201
 202    auto &c = this->controller;
 203
 204    auto &o = this->outputs.front();
 205    auto &s = c->screens.begin()->second;
 206    auto &layers = c->layers;
 207
 208    // Write output dimensions to ivi controller...
 209    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 210
 211    // Clear scene
 212    layers.clear();
 213
 214    // Clear screen
 215    s->clear();
 216
 217    // Quick and dirty setup of layers
 218    for (auto const &i : this->layers.mapping) {
 219       c->layer_create(i.second.layer_id, o->width, o->height);
 220       auto &l = layers[i.second.layer_id];
 221       l->set_destination_rectangle(0, 0, o->width, o->height);
 222       l->set_visibility(1);
 223       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 224                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 225    }
 226
 227    // Add layers to screen
 228    s->set_render_order(this->layers.layers);
 229
 230    this->layout_commit();
 231
 232    return 0;
 233 }
 234
 235 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 236    if (!this->controller->surface_exists(surface_id)) {
 237       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 238       return;
 239    }
 240
 241    auto o_layer_id = this->layers.get_layer_id(surface_id);
 242
 243    if (!o_layer_id) {
 244       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 245       return;
 246    }
 247
 248    uint32_t layer_id = *o_layer_id;
 249
 250    auto const &layer = this->layers.get_layer(layer_id);
 251    auto rect = layer.value().rect;
 252    auto &s = this->controller->surfaces[surface_id];
 253
 254    int x = rect.x;
 255    int y = rect.y;
 256    int w = rect.w;
 257    int h = rect.h;
 258
 259    // less-than-0 values refer to MAX + 1 - $VALUE
 260    // e.g. MAX is either screen width or height
 261    if (w < 0) {
 262       w = this->controller->output_size.w + 1 + w;
 263    }
 264    if (h < 0) {
 265       h = this->controller->output_size.h + 1 + h;
 266    }
 267
 268    if (sub_surface_id) {
 269       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 270          HMI_ERROR("wm",
 271             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 272             surface_id, *sub_surface_id);
 273          return;
 274       }
 275
 276       int x_off = 0;
 277       int y_off = 0;
 278
 279       // split along major axis
 280       if (w > h) {
 281          w /= 2;
 282          x_off = w;
 283       } else {
 284          h /= 2;
 285          y_off = h;
 286       }
 287
 288       auto &ss = this->controller->surfaces[*sub_surface_id];
 289
 290       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 291                *sub_surface_id, layer_id);
 292
 293       // set destination to the display rectangle
 294       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 295
 296    }
 297
 298    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 299             layer_id);
 300
 301    // set destination to the display rectangle
 302    s->set_destination_rectangle(x, y, w, h);
 303
 304    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 305             surface_id, layer_id, x, y, w, h);
 306 }
 307
 308 void App::layout_commit() {
 309    this->controller->commit_changes();
 310    this->display->flush();
 311 }
 312
 313 char const *App::api_activate_surface(char const *drawing_name, char const *drawing_area) {
 314    ST();
 315
 316    auto const &surface_id = this->lookup_id(drawing_name);
 317
 318    if (!surface_id) {
 319       return "Surface does not exist";
 320    }
 321
 322    if (!this->controller->surface_exists(*surface_id)) {
 323       return "Surface does not exist in controller!";
 324    }
 325
 326    auto layer_id = this->layers.get_layer_id(*surface_id);
 327
 328    if (!layer_id) {
 329       return "Surface is not on any layer!";
 330    }
 331
 332    auto o_state = *this->layers.get_layout_state(*surface_id);
 333
 334    if (o_state == nullptr) {
 335       return "Could not find layer for surface";
 336    }
 337
 338    struct LayoutState &state = *o_state;
 339
 340    // disable layers that are above our current layer
 341    for (auto const &l : this->layers.mapping) {
 342       if (l.second.layer_id <= *layer_id) {
 343          continue;
 344       }
 345
 346       bool flush = false;
 347       if (l.second.state.main != -1) {
 348          this->deactivate(l.second.state.main);
 349          l.second.state.main = -1;
 350          flush = true;
 351       }
 352
 353       if (l.second.state.sub != -1) {
 354          this->deactivate(l.second.state.sub);
 355          l.second.state.sub = -1;
 356          flush = true;
 357       }
 358
 359       if (flush) {
 360          this->layout_commit();
 361       }
 362    }
 363
 364    auto layer = this->layers.get_layer(*layer_id);
 365
 366    if (state.main == -1) {
 367       this->try_layout(
 368          state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 369             HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 370             this->surface_set_layout(*surface_id);
 371             state = nl;
 372
 373             // Commit for configuraton
 374             this->layout_commit();
 375
 376             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 377             this->emit_syncdraw(drawing_name, str_area.c_str());
 378             this->enqueue_flushdraw(state.main);
 379          });
 380    } else {
 381       if (0 == strcmp(drawing_name, "HomeScreen")) {
 382          this->try_layout(
 383             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 384                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 385                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 386                this->emit_syncdraw(drawing_name, str_area.c_str());
 387                this->enqueue_flushdraw(state.main);
 388             });
 389       } else {
 390          bool can_split = this->can_split(state, *surface_id);
 391
 392          if (can_split) {
 393             this->try_layout(
 394                state,
 395                LayoutState{state.main, *surface_id},
 396                [&] (LayoutState const &nl) {
 397                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 398                   std::string main =
 399                      std::move(*this->lookup_name(state.main));
 400
 401                   this->surface_set_layout(state.main, surface_id);
 402                   if (state.sub != *surface_id) {
 403                       if (state.sub != -1) {
 404                          this->deactivate(state.sub);
 405                       }
 406                   }
 407                   state = nl;
 408
 409                   // Commit for configuration and visibility(0)
 410                   this->layout_commit();
 411
 412                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 413                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 414                   this->emit_syncdraw(main.c_str(), str_area_main.c_str());
 415                   this->emit_syncdraw(drawing_name, str_area_sub.c_str());
 416                   this->enqueue_flushdraw(state.main);
 417                   this->enqueue_flushdraw(state.sub);
 418                });
 419          } else {
 420             this->try_layout(
 421                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 422                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 423
 424                   this->surface_set_layout(*surface_id);
 425                   if (state.main != *surface_id) {
 426                       this->deactivate(state.main);
 427                   }
 428                   if (state.sub != -1) {
 429                       if (state.sub != *surface_id) {
 430                          this->deactivate(state.sub);
 431                       }
 432                   }
 433                   state = nl;
 434
 435                   // Commit for configuraton and visibility(0)
 436                   this->layout_commit();
 437
 438                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 439                   this->emit_syncdraw(drawing_name, str_area.c_str());
 440                   this->enqueue_flushdraw(state.main);
 441                });
 442          }
 443       }
 444    }
 445
 446    // no error
 447    return nullptr;
 448 }
 449
 450 char const *App::api_deactivate_surface(char const *drawing_name) {
 451    ST();
 452    auto const &surface_id = this->lookup_id(drawing_name);
 453
 454    if (!surface_id) {
 455          return "Surface does not exist";
 456       }
 457
 458    if (*surface_id == this->layers.main_surface) {
 459       return "Cannot deactivate main_surface";
 460    }
 461
 462    auto o_state = *this->layers.get_layout_state(*surface_id);
 463
 464    if (o_state == nullptr) {
 465       return "Could not find layer for surface";
 466    }
 467
 468    struct LayoutState &state = *o_state;
 469
 470    if (state.main == -1) {
 471       return "No surface active";
 472    }
 473
 474    // Check against main_surface, main_surface_name is the configuration item.
 475    if (*surface_id == this->layers.main_surface) {
 476       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 477       return nullptr;
 478    }
 479
 480    if (state.main == *surface_id) {
 481       if (state.sub != -1) {
 482          this->try_layout(
 483             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 484                std::string sub = std::move(*this->lookup_name(state.sub));
 485
 486                this->deactivate(*surface_id);
 487                this->surface_set_layout(state.sub);
 488                state = nl;
 489
 490                this->layout_commit();
 491                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 492                this->emit_syncdraw(sub.c_str(), str_area.c_str());
 493                this->enqueue_flushdraw(state.sub);
 494             });
 495       } else {
 496          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 497             this->deactivate(*surface_id);
 498             state = nl;
 499             this->layout_commit();
 500          });
 501       }
 502    } else if (state.sub == *surface_id) {
 503       this->try_layout(
 504          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 505             std::string main = std::move(*this->lookup_name(state.main));
 506
 507             this->deactivate(*surface_id);
 508             this->surface_set_layout(state.main);
 509             state = nl;
 510
 511             this->layout_commit();
 512             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 513             this->emit_syncdraw(main.c_str(), str_area.c_str());
 514             this->enqueue_flushdraw(state.main);
 515          });
 516    } else {
 517       return "Surface is not active";
 518    }
 519
 520    return nullptr;
 521 }
 522
 523 void App::enqueue_flushdraw(int surface_id) {
 524    this->check_flushdraw(surface_id);
 525    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 526    this->pending_end_draw.push_back(surface_id);
 527 }
 528
 529 void App::check_flushdraw(int surface_id) {
 530    auto i = std::find(std::begin(this->pending_end_draw),
 531                       std::end(this->pending_end_draw), surface_id);
 532    if (i != std::end(this->pending_end_draw)) {
 533       auto n = this->lookup_name(surface_id);
 534       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 535                n ? n->c_str() : "unknown-name", surface_id);
 536       std::swap(this->pending_end_draw[std::distance(
 537                    std::begin(this->pending_end_draw), i)],
 538                 this->pending_end_draw.back());
 539       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 540    }
 541 }
 542
 543 char const *App::api_enddraw(char const *drawing_name) {
 544    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 545       auto n = this->lookup_name(this->pending_end_draw[i]);
 546       if (n && *n == drawing_name) {
 547          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 548          this->pending_end_draw.resize(iend - 1);
 549          this->activate(this->pending_end_draw[i]);
 550          this->layout_commit();
 551          this->emit_flushdraw(drawing_name);
 552          return nullptr;
 553       }
 554    }
 555    return "No EndDraw pending for surface";
 556 }
 557
 558 void App::api_ping() { this->dispatch_pending_events(); }
 559
 560 void App::send_event(char const *evname, char const *label){
 561    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 562
 563    json_object *j = json_object_new_object();
 564    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 565
 566    int ret = afb_event_push(this->map_afb_event[evname], j);
 567    if (ret != 0) {
 568       HMI_DEBUG("wm", "afb_event_push failed: %m");
 569    }
 570 }
 571
 572 void App::send_event(char const *evname, char const *label, char const *area){
 573    HMI_DEBUG("wm", "%s: %s(%s, %s)", __func__, evname, label, area);
 574
 575    json_object *j = json_object_new_object();
 576    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 577    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 578
 579    int ret = afb_event_push(this->map_afb_event[evname], j);
 580    if (ret != 0) {
 581       HMI_DEBUG("wm", "afb_event_push failed: %m");
 582    }
 583 }
 584
 585 /**
 586  * proxied events
 587  */
 588 void App::surface_created(uint32_t surface_id) {
 589    auto layer_id = this->layers.get_layer_id(surface_id);
 590    if (!layer_id) {
 591       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 592                surface_id);
 593       return;
 594    }
 595
 596    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 597
 598    this->controller->layers[*layer_id]->add_surface(
 599       this->controller->surfaces[surface_id].get());
 600    this->layout_commit();
 601    // activate the main_surface right away
 602    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 603       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 604
 605       this->api_activate_surface(
 606          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 607    }*/
 608 }
 609
 610 void App::surface_removed(uint32_t surface_id) {
 611    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 612
 613    // We cannot normally deactivate the main_surface, so be explicit
 614    // about it:
 615    if (int(surface_id) == this->layers.main_surface) {
 616       this->deactivate_main_surface();
 617    } else {
 618       auto drawing_name = this->lookup_name(surface_id);
 619       if (drawing_name) {
 620          this->api_deactivate_surface(drawing_name->c_str());
 621       }
 622    }
 623
 624    this->id_alloc.remove_id(surface_id);
 625    this->layers.remove_surface(surface_id);
 626 }
 627
 628 void App::emit_activated(char const *label) {
 629    this->send_event(kListEventName[Event_Active], label);
 630 }
 631
 632 void App::emit_deactivated(char const *label) {
 633    this->send_event(kListEventName[Event_Inactive], label);
 634 }
 635
 636 void App::emit_syncdraw(char const *label, char const *area) {
 637     this->send_event(kListEventName[Event_SyncDraw], label, area);
 638 }
 639
 640 void App::emit_flushdraw(char const *label) {
 641    this->send_event(kListEventName[Event_FlushDraw], label);
 642 }
 643
 644 void App::emit_visible(char const *label, bool is_visible) {
 645    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 646 }
 647
 648 void App::emit_invisible(char const *label) {
 649    return emit_visible(label, false);
 650 }
 651
 652 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 653
 654 result<int> App::api_request_surface(char const *drawing_name) {
 655    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 656    if (!lid) {
 657       // TODO: Do we need to put these applications on the App layer?
 658       return Err<int>("Drawing name does not match any role");
 659    }
 660
 661    auto rname = this->lookup_id(drawing_name);
 662    if (!rname) {
 663       // name does not exist yet, allocate surface id...
 664       auto id = int(this->id_alloc.generate_id(drawing_name));
 665       this->layers.add_surface(id, *lid);
 666
 667       // set the main_surface[_name] here and now
 668       if (!this->layers.main_surface_name.empty() &&
 669           this->layers.main_surface_name == drawing_name) {
 670          this->layers.main_surface = id;
 671          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 672       }
 673
 674       return Ok<int>(id);
 675    }
 676
 677    // Check currently registered drawing names if it is already there.
 678    return Err<int>("Surface already present");
 679 }
 680
 681 char const *App::api_request_surface(char const *drawing_name,
 682                                      char const *ivi_id) {
 683    ST();
 684
 685    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 686    unsigned sid = std::stol(ivi_id);
 687
 688    if (!lid) {
 689        return "Drawing name does not match any role";
 690    }
 691
 692    auto rname = this->lookup_id(drawing_name);
 693
 694    if (rname) {
 695        return "Surface already present";
 696    }
 697
 698    // register pair drawing_name and ivi_id
 699    this->id_alloc.register_name_id(drawing_name, sid);
 700    this->layers.add_surface(sid, *lid);
 701
 702    // this surface is already created
 703    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 704
 705    this->controller->layers[*lid]->add_surface(
 706        this->controller->surfaces[sid].get());
 707    this->layout_commit();
 708
 709    return nullptr;
 710 }
 711
 712 void App::activate(int id) {
 713    auto ip = this->controller->sprops.find(id);
 714    if (ip != this->controller->sprops.end()) {
 715       this->controller->surfaces[id]->set_visibility(1);
 716       char const *label =
 717          this->lookup_name(id).value_or("unknown-name").c_str();
 718
 719       // FOR CES DEMO >>>
 720       if ((0 == strcmp(label, "Radio"))
 721           || (0 == strcmp(label, "MediaPlayer"))
 722           || (0 == strcmp(label, "Music"))
 723           || (0 == strcmp(label, "Navigation"))) {
 724         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 725             if (id == *i) {
 726                // Remove id
 727                this->surface_bg.erase(i);
 728
 729                // Remove from BG layer (999)
 730                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 731                this->controller->layers[999]->remove_surface(
 732                   this->controller->surfaces[id].get());
 733
 734                // Add to FG layer (1001)
 735                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 736                this->controller->layers[1001]->add_surface(
 737                   this->controller->surfaces[id].get());
 738
 739                for (int j : this->surface_bg) {
 740                  HMI_DEBUG("wm", "Stored id:%d", j);
 741                }
 742                break;
 743             }
 744          }
 745       }
 746       // <<< FOR CES DEMO
 747
 748       this->emit_visible(label);
 749       this->emit_activated(label);
 750    }
 751 }
 752
 753 void App::deactivate(int id) {
 754    auto ip = this->controller->sprops.find(id);
 755    if (ip != this->controller->sprops.end() && ip->second.visibility != 0) {
 756       char const *label =
 757          this->lookup_name(id).value_or("unknown-name").c_str();
 758
 759       // FOR CES DEMO >>>
 760       if ((0 == strcmp(label, "Radio"))
 761           || (0 == strcmp(label, "MediaPlayer"))
 762           || (0 == strcmp(label, "Music"))
 763           || (0 == strcmp(label, "Navigation"))) {
 764
 765          // Store id
 766          this->surface_bg.push_back(id);
 767
 768          // Remove from FG layer (1001)
 769          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 770          this->controller->layers[1001]->remove_surface(
 771             this->controller->surfaces[id].get());
 772
 773          // Add to BG layer (999)
 774          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 775          this->controller->layers[999]->add_surface(
 776             this->controller->surfaces[id].get());
 777
 778          for (int j : surface_bg) {
 779             HMI_DEBUG("wm", "Stored id:%d", j);
 780          }
 781       }
 782       else {
 783          this->controller->surfaces[id]->set_visibility(0);
 784       }
 785       // <<< FOR CES DEMO
 786
 787       this->emit_deactivated(label);
 788       this->emit_invisible(label);
 789    }
 790 }
 791
 792 void App::deactivate_main_surface() {
 793    this->layers.main_surface = -1;
 794    this->api_deactivate_surface(this->layers.main_surface_name.c_str());
 795 }
 796
 797 bool App::can_split(struct LayoutState const &state, int new_id) {
 798    if (state.main != -1 && state.main != new_id) {
 799       auto new_id_layer = this->layers.get_layer_id(new_id).value();
 800       auto current_id_layer = this->layers.get_layer_id(state.main).value();
 801
 802       // surfaces are on separate layers, don't bother.
 803       if (new_id_layer != current_id_layer) {
 804          return false;
 805       }
 806
 807       std::string const &new_id_str = this->lookup_name(new_id).value();
 808       std::string const &cur_id_str = this->lookup_name(state.main).value();
 809
 810       auto const &layer = this->layers.get_layer(new_id_layer);
 811
 812       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
 813
 814       if (layer->layouts.empty()) {
 815          return false;
 816       }
 817
 818       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
 819          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
 820          auto rem = std::regex(i->main_match);
 821          if (std::regex_match(cur_id_str, rem)) {
 822             // build the second one only if the first already matched
 823             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
 824             auto res = std::regex(i->sub_match);
 825             if (std::regex_match(new_id_str, res)) {
 826                HMI_DEBUG("wm", "layout matched!");
 827                return true;
 828             }
 829          }
 830       }
 831    }
 832
 833    return false;
 834 }
 835
 836 void App::try_layout(struct LayoutState & /*state*/,
 837                      struct LayoutState const &new_layout,
 838                      std::function<void(LayoutState const &nl)> apply) {
 839    if (this->policy.layout_is_valid(new_layout)) {
 840       apply(new_layout);
 841    }
 842 }
 843
 844 /**
 845  * controller_hooks
 846  */
 847 void controller_hooks::surface_created(uint32_t surface_id) {
 848    this->app->surface_created(surface_id);
 849 }
 850
 851 void controller_hooks::surface_removed(uint32_t surface_id) {
 852    this->app->surface_removed(surface_id);
 853 }
 854
 855 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
 856                                           uint32_t /*v*/) {}
 857
 858 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
 859                                                      uint32_t /*x*/,
 860                                                      uint32_t /*y*/,
 861                                                      uint32_t /*w*/,
 862                                                      uint32_t /*h*/) {}
 863
 864 }  // namespace wm