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 /* DrawingArea name used by "{layout}.{area}" */
  42 const char kNameLayoutNormal[] = "normal";
  43 const char kNameLayoutSplit[]  = "split";
  44 const char kNameAreaFull[]     = "full";
  45 const char kNameAreaMain[]     = "main";
  46 const char kNameAreaSub[]      = "sub";
  47
  48 /* Key for json obejct */
  49 const char kKeyDrawingName[] = "drawing_name";
  50 const char kKeyDrawingArea[] = "drawing_area";
  51 const char kKeyDrawingRect[] = "drawing_rect";
  52 const char kKeyX[]           = "x";
  53 const char kKeyY[]           = "y";
  54 const char kKeyWidth[]       = "width";
  55 const char kKeyHeight[]      = "height";
  56 const char kKeyWidthPixel[]  = "width_pixel";
  57 const char kKeyHeightPixel[] = "height_pixel";
  58 const char kKeyWidthMm[]     = "width_mm";
  59 const char kKeyHeightMm[]    = "height_mm";
  60
  61 namespace {
  62
  63 using nlohmann::json;
  64
  65 result<json> file_to_json(char const *filename) {
  66    json j;
  67    std::ifstream i(filename);
  68    if (i.fail()) {
  69       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  70       j = default_layers_json;
  71    }
  72    else {
  73       i >> j;
  74    }
  75
  76    return Ok(j);
  77 }
  78
  79 struct result<layer_map> load_layer_map(char const *filename) {
  80    HMI_DEBUG("wm", "loading IDs from %s", filename);
  81
  82    auto j = file_to_json(filename);
  83    if (j.is_err()) {
  84       return Err<layer_map>(j.unwrap_err());
  85    }
  86    json jids = j.unwrap();
  87
  88    return to_layer_map(jids);
  89 }
  90
  91 }  // namespace
  92
  93
  94 /**
  95  * App Impl
  96  */
  97 App::App(wl::display *d)
  98    : chooks{this},
  99      display{d},
 100      controller{},
 101      outputs(),
 102      config(),
 103      layers(),
 104      id_alloc{},
 105      pending_events(false),
 106      policy{} {
 107    try {
 108       {
 109          auto l = load_layer_map(
 110             this->config.get_string("layers.json").value().c_str());
 111          if (l.is_ok()) {
 112             this->layers = l.unwrap();
 113          } else {
 114             HMI_ERROR("wm", "%s", l.err().value());
 115          }
 116       }
 117    } catch (std::exception &e) {
 118       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 119    }
 120 }
 121
 122 int App::init() {
 123    if (!this->display->ok()) {
 124       return -1;
 125    }
 126
 127    if (this->layers.mapping.empty()) {
 128       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 129       return -1;
 130    }
 131
 132    // Make afb event
 133    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 134       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 135    }
 136
 137    this->display->add_global_handler(
 138       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 139          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 140       });
 141
 142    this->display->add_global_handler(
 143       "ivi_controller", [this](wl_registry *r, uint32_t name, uint32_t v) {
 144          this->controller =
 145             std::make_unique<struct compositor::controller>(r, name, v);
 146
 147          // Init controller hooks
 148          this->controller->chooks = &this->chooks;
 149
 150          // This protocol needs the output, so lets just add our mapping here...
 151          this->controller->add_proxy_to_id_mapping(
 152             this->outputs.back()->proxy.get(),
 153             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 154                this->outputs.back()->proxy.get())));
 155       });
 156
 157    // First level objects
 158    this->display->roundtrip();
 159    // Second level objects
 160    this->display->roundtrip();
 161    // Third level objects
 162    this->display->roundtrip();
 163
 164    return init_layers();
 165 }
 166
 167 int App::dispatch_events() {
 168    if (this->dispatch_events() == 0) {
 169       return 0;
 170    }
 171
 172    int ret = this->display->dispatch();
 173    if (ret == -1) {
 174       HMI_ERROR("wm", "wl_display_dipatch() returned error %d",
 175                this->display->get_error());
 176       return -1;
 177    }
 178    this->display->flush();
 179
 180    return 0;
 181 }
 182
 183 int App::dispatch_pending_events() {
 184    if (this->pop_pending_events()) {
 185       this->display->dispatch_pending();
 186       return 0;
 187    }
 188    return -1;
 189 }
 190
 191 bool App::pop_pending_events() {
 192    bool x{true};
 193    return this->pending_events.compare_exchange_strong(
 194       x, false, std::memory_order_consume);
 195 }
 196
 197 void App::set_pending_events() {
 198    this->pending_events.store(true, std::memory_order_release);
 199 }
 200
 201 optional<int> App::lookup_id(char const *name) {
 202    return this->id_alloc.lookup(std::string(name));
 203 }
 204 optional<std::string> App::lookup_name(int id) {
 205    return this->id_alloc.lookup(id);
 206 }
 207
 208 /**
 209  * init_layers()
 210  */
 211 int App::init_layers() {
 212    if (!this->controller) {
 213       HMI_ERROR("wm", "ivi_controller global not available");
 214       return -1;
 215    }
 216
 217    if (this->outputs.empty()) {
 218       HMI_ERROR("wm", "no output was set up!");
 219       return -1;
 220    }
 221
 222    auto &c = this->controller;
 223
 224    auto &o = this->outputs.front();
 225    auto &s = c->screens.begin()->second;
 226    auto &layers = c->layers;
 227
 228    // Write output dimensions to ivi controller...
 229    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 230    c->physical_size = compositor::size{uint32_t(o->physical_width),
 231                                        uint32_t(o->physical_height)};
 232
 233    // Clear scene
 234    layers.clear();
 235
 236    // Clear screen
 237    s->clear();
 238
 239    int width = this->layers.main_surface_width;
 240    int height = this->layers.main_surface_height;
 241
 242    rectangle rect(width, height); // 1080x1920 by default
 243    rect.scale(o->width, o->height, true);
 244    rect.center(o->width, o->height);
 245
 246    HMI_DEBUG("wm", "Main surface (0,0),%dx%d to (%d,%d),%dx%d",
 247              width, height, rect.left(), rect.top(), rect.width(), rect.height());
 248
 249    // Quick and dirty setup of layers
 250    for (auto const &i : this->layers.mapping) {
 251       c->layer_create(i.second.layer_id, rect.width(), rect.height());
 252       auto &l = layers[i.second.layer_id];
 253       l->set_source_rectangle(0, 0, width, height);
 254       l->set_destination_rectangle(rect.left(), rect.top(), rect.width(), rect.height());
 255       l->set_visibility(1);
 256       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 257                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 258    }
 259
 260    // Add layers to screen
 261    s->set_render_order(this->layers.layers);
 262
 263    this->layout_commit();
 264
 265    return 0;
 266 }
 267
 268 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 269    if (!this->controller->surface_exists(surface_id)) {
 270       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 271       return;
 272    }
 273
 274    auto o_layer_id = this->layers.get_layer_id(surface_id);
 275
 276    if (!o_layer_id) {
 277       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 278       return;
 279    }
 280
 281    uint32_t layer_id = *o_layer_id;
 282
 283    auto const &layer = this->layers.get_layer(layer_id);
 284    auto rect = layer.value().rect;
 285    auto &s = this->controller->surfaces[surface_id];
 286
 287    int x = rect.x;
 288    int y = rect.y;
 289    int w = rect.w;
 290    int h = rect.h;
 291
 292    // less-than-0 values refer to MAX + 1 - $VALUE
 293    // e.g. MAX is either screen width or height
 294    if (w < 0) {
 295       w = this->layers.main_surface_width + 1 + w;
 296    }
 297    if (h < 0) {
 298       h = this->layers.main_surface_height + 1 + h;
 299    }
 300
 301    if (sub_surface_id) {
 302       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 303          HMI_ERROR("wm",
 304             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 305             surface_id, *sub_surface_id);
 306          return;
 307       }
 308
 309       int x_off = 0;
 310       int y_off = 0;
 311
 312       // split along major axis
 313       if (w > h) {
 314          w /= 2;
 315          x_off = w;
 316       } else {
 317          h /= 2;
 318          y_off = h;
 319       }
 320
 321       auto &ss = this->controller->surfaces[*sub_surface_id];
 322
 323       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 324                *sub_surface_id, layer_id);
 325
 326       // set destination to the display rectangle
 327       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 328
 329       this->area_info[*sub_surface_id].x = x;
 330       this->area_info[*sub_surface_id].y = y;
 331       this->area_info[*sub_surface_id].w = w;
 332       this->area_info[*sub_surface_id].h = h;
 333    }
 334
 335    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 336             layer_id);
 337
 338    // set destination to the display rectangle
 339    s->set_destination_rectangle(x, y, w, h);
 340
 341    // update area information
 342    this->area_info[surface_id].x = x;
 343    this->area_info[surface_id].y = y;
 344    this->area_info[surface_id].w = w;
 345    this->area_info[surface_id].h = h;
 346
 347    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 348             surface_id, layer_id, x, y, w, h);
 349 }
 350
 351 void App::layout_commit() {
 352    this->controller->commit_changes();
 353    this->display->flush();
 354 }
 355
 356 char const *App::api_activate_surface(char const *drawing_name, char const *drawing_area) {
 357    ST();
 358
 359    auto const &surface_id = this->lookup_id(drawing_name);
 360
 361    if (!surface_id) {
 362       return "Surface does not exist";
 363    }
 364
 365    if (!this->controller->surface_exists(*surface_id)) {
 366       return "Surface does not exist in controller!";
 367    }
 368
 369    auto layer_id = this->layers.get_layer_id(*surface_id);
 370
 371    if (!layer_id) {
 372       return "Surface is not on any layer!";
 373    }
 374
 375    auto o_state = *this->layers.get_layout_state(*surface_id);
 376
 377    if (o_state == nullptr) {
 378       return "Could not find layer for surface";
 379    }
 380
 381    struct LayoutState &state = *o_state;
 382
 383    // disable layers that are above our current layer
 384    for (auto const &l : this->layers.mapping) {
 385       if (l.second.layer_id <= *layer_id) {
 386          continue;
 387       }
 388
 389       bool flush = false;
 390       if (l.second.state.main != -1) {
 391          this->deactivate(l.second.state.main);
 392          l.second.state.main = -1;
 393          flush = true;
 394       }
 395
 396       if (l.second.state.sub != -1) {
 397          this->deactivate(l.second.state.sub);
 398          l.second.state.sub = -1;
 399          flush = true;
 400       }
 401
 402       if (flush) {
 403          this->layout_commit();
 404       }
 405    }
 406
 407    auto layer = this->layers.get_layer(*layer_id);
 408
 409    if (state.main == -1) {
 410       this->try_layout(
 411          state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 412             HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 413             this->surface_set_layout(*surface_id);
 414             state = nl;
 415
 416             // Commit for configuraton
 417             this->layout_commit();
 418
 419             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 420             compositor::rect area_rect = this->area_info[*surface_id];
 421             this->emit_syncdraw(drawing_name, str_area.c_str(),
 422                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 423             this->enqueue_flushdraw(state.main);
 424          });
 425    } else {
 426       if (0 == strcmp(drawing_name, "HomeScreen")) {
 427          this->try_layout(
 428             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 429                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 430                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 431                compositor::rect area_rect = this->area_info[*surface_id];
 432                this->emit_syncdraw(drawing_name, str_area.c_str(),
 433                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 434                this->enqueue_flushdraw(state.main);
 435             });
 436       } else {
 437          bool can_split = this->can_split(state, *surface_id);
 438
 439          if (can_split) {
 440             this->try_layout(
 441                state,
 442                LayoutState{state.main, *surface_id},
 443                [&] (LayoutState const &nl) {
 444                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 445                   std::string main =
 446                      std::move(*this->lookup_name(state.main));
 447
 448                   this->surface_set_layout(state.main, surface_id);
 449                   if (state.sub != *surface_id) {
 450                       if (state.sub != -1) {
 451                          this->deactivate(state.sub);
 452                       }
 453                   }
 454                   state = nl;
 455
 456                   // Commit for configuration and visibility(0)
 457                   this->layout_commit();
 458
 459                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 460                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 461                   compositor::rect area_rect_main = this->area_info[state.main];
 462                   compositor::rect area_rect_sub = this->area_info[*surface_id];
 463                   this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 464                                       area_rect_main.x, area_rect_main.y,
 465                                       area_rect_main.w, area_rect_main.h);
 466                   this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 467                                       area_rect_sub.x, area_rect_sub.y,
 468                                       area_rect_sub.w, area_rect_sub.h);
 469                   this->enqueue_flushdraw(state.main);
 470                   this->enqueue_flushdraw(state.sub);
 471                });
 472          } else {
 473             this->try_layout(
 474                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 475                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 476
 477                   this->surface_set_layout(*surface_id);
 478                   if (state.main != *surface_id) {
 479                       this->deactivate(state.main);
 480                   }
 481                   if (state.sub != -1) {
 482                       if (state.sub != *surface_id) {
 483                          this->deactivate(state.sub);
 484                       }
 485                   }
 486                   state = nl;
 487
 488                   // Commit for configuraton and visibility(0)
 489                   this->layout_commit();
 490
 491                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 492                   compositor::rect area_rect = this->area_info[*surface_id];
 493                   this->emit_syncdraw(drawing_name, str_area.c_str(),
 494                                       area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 495                   this->enqueue_flushdraw(state.main);
 496                });
 497          }
 498       }
 499    }
 500
 501    // no error
 502    return nullptr;
 503 }
 504
 505 char const *App::api_deactivate_surface(char const *drawing_name) {
 506    ST();
 507    auto const &surface_id = this->lookup_id(drawing_name);
 508
 509    if (!surface_id) {
 510          return "Surface does not exist";
 511       }
 512
 513    if (*surface_id == this->layers.main_surface) {
 514       return "Cannot deactivate main_surface";
 515    }
 516
 517    auto o_state = *this->layers.get_layout_state(*surface_id);
 518
 519    if (o_state == nullptr) {
 520       return "Could not find layer for surface";
 521    }
 522
 523    struct LayoutState &state = *o_state;
 524
 525    if (state.main == -1) {
 526       return "No surface active";
 527    }
 528
 529    // Check against main_surface, main_surface_name is the configuration item.
 530    if (*surface_id == this->layers.main_surface) {
 531       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 532       return nullptr;
 533    }
 534
 535    if (state.main == *surface_id) {
 536       if (state.sub != -1) {
 537          this->try_layout(
 538             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 539                std::string sub = std::move(*this->lookup_name(state.sub));
 540
 541                this->deactivate(*surface_id);
 542                this->surface_set_layout(state.sub);
 543                state = nl;
 544
 545                this->layout_commit();
 546                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 547                compositor::rect area_rect = this->area_info[state.sub];
 548                this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 549                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 550                this->enqueue_flushdraw(state.sub);
 551             });
 552       } else {
 553          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 554             this->deactivate(*surface_id);
 555             state = nl;
 556             this->layout_commit();
 557          });
 558       }
 559    } else if (state.sub == *surface_id) {
 560       this->try_layout(
 561          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 562             std::string main = std::move(*this->lookup_name(state.main));
 563
 564             this->deactivate(*surface_id);
 565             this->surface_set_layout(state.main);
 566             state = nl;
 567
 568             this->layout_commit();
 569             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 570             compositor::rect area_rect = this->area_info[state.main];
 571             this->emit_syncdraw(main.c_str(), str_area.c_str(),
 572                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 573             this->enqueue_flushdraw(state.main);
 574          });
 575    } else {
 576       return "Surface is not active";
 577    }
 578
 579    return nullptr;
 580 }
 581
 582 void App::enqueue_flushdraw(int surface_id) {
 583    this->check_flushdraw(surface_id);
 584    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 585    this->pending_end_draw.push_back(surface_id);
 586 }
 587
 588 void App::check_flushdraw(int surface_id) {
 589    auto i = std::find(std::begin(this->pending_end_draw),
 590                       std::end(this->pending_end_draw), surface_id);
 591    if (i != std::end(this->pending_end_draw)) {
 592       auto n = this->lookup_name(surface_id);
 593       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 594                n ? n->c_str() : "unknown-name", surface_id);
 595       std::swap(this->pending_end_draw[std::distance(
 596                    std::begin(this->pending_end_draw), i)],
 597                 this->pending_end_draw.back());
 598       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 599    }
 600 }
 601
 602 char const *App::api_enddraw(char const *drawing_name) {
 603    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 604       auto n = this->lookup_name(this->pending_end_draw[i]);
 605       if (n && *n == drawing_name) {
 606          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 607          this->pending_end_draw.resize(iend - 1);
 608          this->activate(this->pending_end_draw[i]);
 609          this->layout_commit();
 610          this->emit_flushdraw(drawing_name);
 611          return nullptr;
 612       }
 613    }
 614    return "No EndDraw pending for surface";
 615 }
 616
 617 void App::api_ping() { this->dispatch_pending_events(); }
 618
 619 void App::send_event(char const *evname, char const *label){
 620    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 621
 622    json_object *j = json_object_new_object();
 623    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 624
 625    int ret = afb_event_push(this->map_afb_event[evname], j);
 626    if (ret != 0) {
 627       HMI_DEBUG("wm", "afb_event_push failed: %m");
 628    }
 629 }
 630
 631 void App::send_event(char const *evname, char const *label, char const *area,
 632                              int x, int y, int w, int h) {
 633    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 634              __func__, evname, label, area, x, y, w, h);
 635
 636    json_object *j_rect = json_object_new_object();
 637    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 638    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 639    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 640    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 641
 642    json_object *j = json_object_new_object();
 643    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 644    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 645    json_object_object_add(j, kKeyDrawingRect, j_rect);
 646
 647    int ret = afb_event_push(this->map_afb_event[evname], j);
 648    if (ret != 0) {
 649       HMI_DEBUG("wm", "afb_event_push failed: %m");
 650    }
 651 }
 652
 653 /**
 654  * proxied events
 655  */
 656 void App::surface_created(uint32_t surface_id) {
 657    auto layer_id = this->layers.get_layer_id(surface_id);
 658    if (!layer_id) {
 659       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 660                surface_id);
 661       return;
 662    }
 663
 664    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 665
 666    this->controller->layers[*layer_id]->add_surface(
 667       this->controller->surfaces[surface_id].get());
 668    this->layout_commit();
 669    // activate the main_surface right away
 670    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 671       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 672
 673       this->api_activate_surface(
 674          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 675    }*/
 676 }
 677
 678 void App::surface_removed(uint32_t surface_id) {
 679    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 680
 681    // We cannot normally deactivate the main_surface, so be explicit
 682    // about it:
 683    if (int(surface_id) == this->layers.main_surface) {
 684       this->deactivate_main_surface();
 685    } else {
 686       auto drawing_name = this->lookup_name(surface_id);
 687       if (drawing_name) {
 688          this->api_deactivate_surface(drawing_name->c_str());
 689       }
 690    }
 691
 692    this->id_alloc.remove_id(surface_id);
 693    this->layers.remove_surface(surface_id);
 694 }
 695
 696 void App::emit_activated(char const *label) {
 697    this->send_event(kListEventName[Event_Active], label);
 698 }
 699
 700 void App::emit_deactivated(char const *label) {
 701    this->send_event(kListEventName[Event_Inactive], label);
 702 }
 703
 704 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 705    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 706 }
 707
 708 void App::emit_flushdraw(char const *label) {
 709    this->send_event(kListEventName[Event_FlushDraw], label);
 710 }
 711
 712 void App::emit_visible(char const *label, bool is_visible) {
 713    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 714 }
 715
 716 void App::emit_invisible(char const *label) {
 717    return emit_visible(label, false);
 718 }
 719
 720 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 721
 722 result<int> App::api_request_surface(char const *drawing_name) {
 723    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 724    if (!lid) {
 725       /**
 726        * register drawing_name as fallback and make it displayed.
 727        */
 728       lid = this->layers.get_layer_id(std::string("Fallback"));
 729       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 730       if(!lid){
 731           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 732       }
 733    }
 734
 735    auto rname = this->lookup_id(drawing_name);
 736    if (!rname) {
 737       // name does not exist yet, allocate surface id...
 738       auto id = int(this->id_alloc.generate_id(drawing_name));
 739       this->layers.add_surface(id, *lid);
 740
 741       // set the main_surface[_name] here and now
 742       if (!this->layers.main_surface_name.empty() &&
 743           this->layers.main_surface_name == drawing_name) {
 744          this->layers.main_surface = id;
 745          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 746       }
 747
 748       return Ok<int>(id);
 749    }
 750
 751    // Check currently registered drawing names if it is already there.
 752    return Err<int>("Surface already present");
 753 }
 754
 755 char const *App::api_request_surface(char const *drawing_name,
 756                                      char const *ivi_id) {
 757    ST();
 758
 759    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 760    unsigned sid = std::stol(ivi_id);
 761
 762    if (!lid) {
 763       /**
 764        * register drawing_name as fallback and make it displayed.
 765        */
 766       lid = this->layers.get_layer_id(std::string("Fallback"));
 767       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 768       if(!lid){
 769           return "Drawing name does not match any role, Fallback is disabled";
 770       }
 771    }
 772
 773    auto rname = this->lookup_id(drawing_name);
 774
 775    if (rname) {
 776        return "Surface already present";
 777    }
 778
 779    // register pair drawing_name and ivi_id
 780    this->id_alloc.register_name_id(drawing_name, sid);
 781    this->layers.add_surface(sid, *lid);
 782
 783    // this surface is already created
 784    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 785
 786    this->controller->layers[*lid]->add_surface(
 787        this->controller->surfaces[sid].get());
 788    this->layout_commit();
 789
 790    return nullptr;
 791 }
 792
 793 result<json_object *> App::api_get_display_info() {
 794    // Check controller
 795    if (!this->controller) {
 796       return Err<json_object *>("ivi_controller global not available");
 797    }
 798
 799    // Set display info
 800    compositor::size o_size = this->controller->output_size;
 801    compositor::size p_size = this->controller->physical_size;
 802
 803    json_object *object = json_object_new_object();
 804    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 805    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 806    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 807    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 808
 809    return Ok<json_object *>(object);
 810 }
 811
 812 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 813    HMI_DEBUG("wm", "called");
 814
 815    // Check drawing name, surface/layer id
 816    auto const &surface_id = this->lookup_id(drawing_name);
 817    if (!surface_id) {
 818       return Err<json_object *>("Surface does not exist");
 819    }
 820
 821    if (!this->controller->surface_exists(*surface_id)) {
 822       return Err<json_object *>("Surface does not exist in controller!");
 823    }
 824
 825    auto layer_id = this->layers.get_layer_id(*surface_id);
 826    if (!layer_id) {
 827       return Err<json_object *>("Surface is not on any layer!");
 828    }
 829
 830    auto o_state = *this->layers.get_layout_state(*surface_id);
 831    if (o_state == nullptr) {
 832       return Err<json_object *>("Could not find layer for surface");
 833    }
 834
 835    struct LayoutState &state = *o_state;
 836    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 837       return Err<json_object *>("Surface is inactive");
 838    }
 839
 840    // Set area rectangle
 841    compositor::rect area_info = this->area_info[*surface_id];
 842    json_object *object = json_object_new_object();
 843    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 844    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 845    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 846    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 847
 848    return Ok<json_object *>(object);
 849 }
 850
 851 void App::activate(int id) {
 852    auto ip = this->controller->sprops.find(id);
 853    if (ip != this->controller->sprops.end()) {
 854       this->controller->surfaces[id]->set_visibility(1);
 855       char const *label =
 856          this->lookup_name(id).value_or("unknown-name").c_str();
 857
 858       // FOR CES DEMO >>>
 859       if ((0 == strcmp(label, "Radio"))
 860           || (0 == strcmp(label, "MediaPlayer"))
 861           || (0 == strcmp(label, "Music"))
 862           || (0 == strcmp(label, "Navigation"))) {
 863         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 864             if (id == *i) {
 865                // Remove id
 866                this->surface_bg.erase(i);
 867
 868                // Remove from BG layer (999)
 869                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 870                this->controller->layers[999]->remove_surface(
 871                   this->controller->surfaces[id].get());
 872
 873                // Add to FG layer (1001)
 874                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 875                this->controller->layers[1001]->add_surface(
 876                   this->controller->surfaces[id].get());
 877
 878                for (int j : this->surface_bg) {
 879                  HMI_DEBUG("wm", "Stored id:%d", j);
 880                }
 881                break;
 882             }
 883          }
 884       }
 885       // <<< FOR CES DEMO
 886
 887       this->emit_visible(label);
 888       this->emit_activated(label);
 889    }
 890 }
 891
 892 void App::deactivate(int id) {
 893    auto ip = this->controller->sprops.find(id);
 894    if (ip != this->controller->sprops.end() && ip->second.visibility != 0) {
 895       char const *label =
 896          this->lookup_name(id).value_or("unknown-name").c_str();
 897
 898       // FOR CES DEMO >>>
 899       if ((0 == strcmp(label, "Radio"))
 900           || (0 == strcmp(label, "MediaPlayer"))
 901           || (0 == strcmp(label, "Music"))
 902           || (0 == strcmp(label, "Navigation"))) {
 903
 904          // Store id
 905          this->surface_bg.push_back(id);
 906
 907          // Remove from FG layer (1001)
 908          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 909          this->controller->layers[1001]->remove_surface(
 910             this->controller->surfaces[id].get());
 911
 912          // Add to BG layer (999)
 913          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 914          this->controller->layers[999]->add_surface(
 915             this->controller->surfaces[id].get());
 916
 917          for (int j : surface_bg) {
 918             HMI_DEBUG("wm", "Stored id:%d", j);
 919          }
 920       }
 921       else {
 922          this->controller->surfaces[id]->set_visibility(0);
 923       }
 924       // <<< FOR CES DEMO
 925
 926       this->emit_deactivated(label);
 927       this->emit_invisible(label);
 928    }
 929 }
 930
 931 void App::deactivate_main_surface() {
 932    this->layers.main_surface = -1;
 933    this->api_deactivate_surface(this->layers.main_surface_name.c_str());
 934 }
 935
 936 bool App::can_split(struct LayoutState const &state, int new_id) {
 937    if (state.main != -1 && state.main != new_id) {
 938       auto new_id_layer = this->layers.get_layer_id(new_id).value();
 939       auto current_id_layer = this->layers.get_layer_id(state.main).value();
 940
 941       // surfaces are on separate layers, don't bother.
 942       if (new_id_layer != current_id_layer) {
 943          return false;
 944       }
 945
 946       std::string const &new_id_str = this->lookup_name(new_id).value();
 947       std::string const &cur_id_str = this->lookup_name(state.main).value();
 948
 949       auto const &layer = this->layers.get_layer(new_id_layer);
 950
 951       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
 952
 953       if (layer->layouts.empty()) {
 954          return false;
 955       }
 956
 957       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
 958          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
 959          auto rem = std::regex(i->main_match);
 960          if (std::regex_match(cur_id_str, rem)) {
 961             // build the second one only if the first already matched
 962             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
 963             auto res = std::regex(i->sub_match);
 964             if (std::regex_match(new_id_str, res)) {
 965                HMI_DEBUG("wm", "layout matched!");
 966                return true;
 967             }
 968          }
 969       }
 970    }
 971
 972    return false;
 973 }
 974
 975 void App::try_layout(struct LayoutState & /*state*/,
 976                      struct LayoutState const &new_layout,
 977                      std::function<void(LayoutState const &nl)> apply) {
 978    if (this->policy.layout_is_valid(new_layout)) {
 979       apply(new_layout);
 980    }
 981 }
 982
 983 /**
 984  * controller_hooks
 985  */
 986 void controller_hooks::surface_created(uint32_t surface_id) {
 987    this->app->surface_created(surface_id);
 988 }
 989
 990 void controller_hooks::surface_removed(uint32_t surface_id) {
 991    this->app->surface_removed(surface_id);
 992 }
 993
 994 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
 995                                           uint32_t /*v*/) {}
 996
 997 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
 998                                                      uint32_t /*x*/,
 999                                                      uint32_t /*y*/,
1000                                                      uint32_t /*w*/,
1001                                                      uint32_t /*h*/) {}
1002
1003 }  // namespace wm