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