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          if (this->config.get_string("scaling_ignore_aspect")) {
 118              this->layers.scaling_keep_aspect =false;
 119          }
 120       }
 121    } catch (std::exception &e) {
 122       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 123    }
 124 }
 125
 126 int App::init() {
 127    if (!this->display->ok()) {
 128       return -1;
 129    }
 130
 131    if (this->layers.mapping.empty()) {
 132       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 133       return -1;
 134    }
 135
 136    // Make afb event
 137    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 138       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 139    }
 140
 141    this->display->add_global_handler(
 142       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 143          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 144       });
 145
 146    this->display->add_global_handler(
 147       "ivi_controller", [this](wl_registry *r, uint32_t name, uint32_t v) {
 148          this->controller =
 149             std::make_unique<struct compositor::controller>(r, name, v);
 150
 151          // Init controller hooks
 152          this->controller->chooks = &this->chooks;
 153
 154          // This protocol needs the output, so lets just add our mapping here...
 155          this->controller->add_proxy_to_id_mapping(
 156             this->outputs.back()->proxy.get(),
 157             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 158                this->outputs.back()->proxy.get())));
 159       });
 160
 161    // First level objects
 162    this->display->roundtrip();
 163    // Second level objects
 164    this->display->roundtrip();
 165    // Third level objects
 166    this->display->roundtrip();
 167
 168    return init_layers();
 169 }
 170
 171 int App::dispatch_events() {
 172    if (this->dispatch_events() == 0) {
 173       return 0;
 174    }
 175
 176    int ret = this->display->dispatch();
 177    if (ret == -1) {
 178       HMI_ERROR("wm", "wl_display_dipatch() returned error %d",
 179                this->display->get_error());
 180       return -1;
 181    }
 182    this->display->flush();
 183
 184    return 0;
 185 }
 186
 187 int App::dispatch_pending_events() {
 188    if (this->pop_pending_events()) {
 189       this->display->dispatch_pending();
 190       return 0;
 191    }
 192    return -1;
 193 }
 194
 195 bool App::pop_pending_events() {
 196    bool x{true};
 197    return this->pending_events.compare_exchange_strong(
 198       x, false, std::memory_order_consume);
 199 }
 200
 201 void App::set_pending_events() {
 202    this->pending_events.store(true, std::memory_order_release);
 203 }
 204
 205 optional<int> App::lookup_id(char const *name) {
 206    return this->id_alloc.lookup(std::string(name));
 207 }
 208 optional<std::string> App::lookup_name(int id) {
 209    return this->id_alloc.lookup(id);
 210 }
 211
 212 /**
 213  * init_layers()
 214  */
 215 int App::init_layers() {
 216    if (!this->controller) {
 217       HMI_ERROR("wm", "ivi_controller global not available");
 218       return -1;
 219    }
 220
 221    if (this->outputs.empty()) {
 222       HMI_ERROR("wm", "no output was set up!");
 223       return -1;
 224    }
 225
 226    auto &c = this->controller;
 227
 228    auto &o = this->outputs.front();
 229    auto &s = c->screens.begin()->second;
 230    auto &layers = c->layers;
 231
 232    // Write output dimensions to ivi controller...
 233    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 234    c->physical_size = compositor::size{uint32_t(o->physical_width),
 235                                        uint32_t(o->physical_height)};
 236
 237    // Clear scene
 238    layers.clear();
 239
 240    // Clear screen
 241    s->clear();
 242
 243    int width = this->layers.main_surface_width;
 244    int height = this->layers.main_surface_height;
 245
 246    rectangle rect(width, height); // 1080x1920 by default
 247    rect.scale(o->width, o->height, this->layers.scaling_keep_aspect);
 248    rect.center(o->width, o->height);
 249
 250    HMI_DEBUG("wm", "Main surface (0,0),%dx%d to (%d,%d),%dx%d",
 251              width, height, rect.left(), rect.top(), rect.width(), rect.height());
 252
 253    // Quick and dirty setup of layers
 254    for (auto const &i : this->layers.mapping) {
 255       c->layer_create(i.second.layer_id, rect.width(), rect.height());
 256       auto &l = layers[i.second.layer_id];
 257       l->set_source_rectangle(0, 0, width, height);
 258       l->set_destination_rectangle(rect.left(), rect.top(), rect.width(), rect.height());
 259       l->set_visibility(1);
 260       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 261                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 262    }
 263
 264    // Add layers to screen
 265    s->set_render_order(this->layers.layers);
 266
 267    this->layout_commit();
 268
 269    return 0;
 270 }
 271
 272 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 273    if (!this->controller->surface_exists(surface_id)) {
 274       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 275       return;
 276    }
 277
 278    auto o_layer_id = this->layers.get_layer_id(surface_id);
 279
 280    if (!o_layer_id) {
 281       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 282       return;
 283    }
 284
 285    uint32_t layer_id = *o_layer_id;
 286
 287    auto const &layer = this->layers.get_layer(layer_id);
 288    auto rect = layer.value().rect;
 289    auto &s = this->controller->surfaces[surface_id];
 290
 291    int x = rect.x;
 292    int y = rect.y;
 293    int w = rect.w;
 294    int h = rect.h;
 295
 296    // less-than-0 values refer to MAX + 1 - $VALUE
 297    // e.g. MAX is either screen width or height
 298    if (w < 0) {
 299       w = this->layers.main_surface_width + 1 + w;
 300    }
 301    if (h < 0) {
 302       h = this->layers.main_surface_height + 1 + h;
 303    }
 304
 305    if (sub_surface_id) {
 306       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 307          HMI_ERROR("wm",
 308             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 309             surface_id, *sub_surface_id);
 310          return;
 311       }
 312
 313       int x_off = 0;
 314       int y_off = 0;
 315
 316       // split along major axis
 317       if (w > h) {
 318          w /= 2;
 319          x_off = w;
 320       } else {
 321          h /= 2;
 322          y_off = h;
 323       }
 324
 325       auto &ss = this->controller->surfaces[*sub_surface_id];
 326
 327       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 328                *sub_surface_id, layer_id);
 329
 330       // set destination to the display rectangle
 331       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 332
 333       this->area_info[*sub_surface_id].x = x;
 334       this->area_info[*sub_surface_id].y = y;
 335       this->area_info[*sub_surface_id].w = w;
 336       this->area_info[*sub_surface_id].h = h;
 337    }
 338
 339    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 340             layer_id);
 341
 342    // set destination to the display rectangle
 343    s->set_destination_rectangle(x, y, w, h);
 344
 345    // update area information
 346    this->area_info[surface_id].x = x;
 347    this->area_info[surface_id].y = y;
 348    this->area_info[surface_id].w = w;
 349    this->area_info[surface_id].h = h;
 350
 351    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 352             surface_id, layer_id, x, y, w, h);
 353 }
 354
 355 void App::layout_commit() {
 356    this->controller->commit_changes();
 357    this->display->flush();
 358 }
 359
 360 char const *App::api_activate_surface(char const *drawing_name, char const *drawing_area) {
 361    ST();
 362
 363    auto const &surface_id = this->lookup_id(drawing_name);
 364
 365    if (!surface_id) {
 366       return "Surface does not exist";
 367    }
 368
 369    if (!this->controller->surface_exists(*surface_id)) {
 370       return "Surface does not exist in controller!";
 371    }
 372
 373    auto layer_id = this->layers.get_layer_id(*surface_id);
 374
 375    if (!layer_id) {
 376       return "Surface is not on any layer!";
 377    }
 378
 379    auto o_state = *this->layers.get_layout_state(*surface_id);
 380
 381    if (o_state == nullptr) {
 382       return "Could not find layer for surface";
 383    }
 384
 385    struct LayoutState &state = *o_state;
 386
 387    // disable layers that are above our current layer
 388    for (auto const &l : this->layers.mapping) {
 389       if (l.second.layer_id <= *layer_id) {
 390          continue;
 391       }
 392
 393       bool flush = false;
 394       if (l.second.state.main != -1) {
 395          this->deactivate(l.second.state.main);
 396          l.second.state.main = -1;
 397          flush = true;
 398       }
 399
 400       if (l.second.state.sub != -1) {
 401          this->deactivate(l.second.state.sub);
 402          l.second.state.sub = -1;
 403          flush = true;
 404       }
 405
 406       if (flush) {
 407          this->layout_commit();
 408       }
 409    }
 410
 411    auto layer = this->layers.get_layer(*layer_id);
 412
 413    if (state.main == -1) {
 414       this->try_layout(
 415          state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 416             HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 417             this->surface_set_layout(*surface_id);
 418             state = nl;
 419
 420             // Commit for configuraton
 421             this->layout_commit();
 422
 423             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 424             compositor::rect area_rect = this->area_info[*surface_id];
 425             this->emit_syncdraw(drawing_name, str_area.c_str(),
 426                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 427             this->enqueue_flushdraw(state.main);
 428          });
 429    } else {
 430       if (0 == strcmp(drawing_name, "HomeScreen")) {
 431          this->try_layout(
 432             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 433                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 434                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 435                compositor::rect area_rect = this->area_info[*surface_id];
 436                this->emit_syncdraw(drawing_name, str_area.c_str(),
 437                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 438                this->enqueue_flushdraw(state.main);
 439             });
 440       } else {
 441          bool can_split = this->can_split(state, *surface_id);
 442
 443          if (can_split) {
 444             this->try_layout(
 445                state,
 446                LayoutState{state.main, *surface_id},
 447                [&] (LayoutState const &nl) {
 448                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 449                   std::string main =
 450                      std::move(*this->lookup_name(state.main));
 451
 452                   this->surface_set_layout(state.main, surface_id);
 453                   if (state.sub != *surface_id) {
 454                       if (state.sub != -1) {
 455                          this->deactivate(state.sub);
 456                       }
 457                   }
 458                   state = nl;
 459
 460                   // Commit for configuration and visibility(0)
 461                   this->layout_commit();
 462
 463                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 464                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 465                   compositor::rect area_rect_main = this->area_info[state.main];
 466                   compositor::rect area_rect_sub = this->area_info[*surface_id];
 467                   this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 468                                       area_rect_main.x, area_rect_main.y,
 469                                       area_rect_main.w, area_rect_main.h);
 470                   this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 471                                       area_rect_sub.x, area_rect_sub.y,
 472                                       area_rect_sub.w, area_rect_sub.h);
 473                   this->enqueue_flushdraw(state.main);
 474                   this->enqueue_flushdraw(state.sub);
 475                });
 476          } else {
 477             this->try_layout(
 478                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 479                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 480
 481                   this->surface_set_layout(*surface_id);
 482                   if (state.main != *surface_id) {
 483                       this->deactivate(state.main);
 484                   }
 485                   if (state.sub != -1) {
 486                       if (state.sub != *surface_id) {
 487                          this->deactivate(state.sub);
 488                       }
 489                   }
 490                   state = nl;
 491
 492                   // Commit for configuraton and visibility(0)
 493                   this->layout_commit();
 494
 495                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 496                   compositor::rect area_rect = this->area_info[*surface_id];
 497                   this->emit_syncdraw(drawing_name, str_area.c_str(),
 498                                       area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 499                   this->enqueue_flushdraw(state.main);
 500                });
 501          }
 502       }
 503    }
 504
 505    // no error
 506    return nullptr;
 507 }
 508
 509 char const *App::api_deactivate_surface(char const *drawing_name) {
 510    ST();
 511    auto const &surface_id = this->lookup_id(drawing_name);
 512
 513    if (!surface_id) {
 514          return "Surface does not exist";
 515       }
 516
 517    if (*surface_id == this->layers.main_surface) {
 518       return "Cannot deactivate main_surface";
 519    }
 520
 521    auto o_state = *this->layers.get_layout_state(*surface_id);
 522
 523    if (o_state == nullptr) {
 524       return "Could not find layer for surface";
 525    }
 526
 527    struct LayoutState &state = *o_state;
 528
 529    if (state.main == -1) {
 530       return "No surface active";
 531    }
 532
 533    // Check against main_surface, main_surface_name is the configuration item.
 534    if (*surface_id == this->layers.main_surface) {
 535       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 536       return nullptr;
 537    }
 538
 539    if (state.main == *surface_id) {
 540       if (state.sub != -1) {
 541          this->try_layout(
 542             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 543                std::string sub = std::move(*this->lookup_name(state.sub));
 544
 545                this->deactivate(*surface_id);
 546                this->surface_set_layout(state.sub);
 547                state = nl;
 548
 549                this->layout_commit();
 550                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 551                compositor::rect area_rect = this->area_info[state.sub];
 552                this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 553                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 554                this->enqueue_flushdraw(state.sub);
 555             });
 556       } else {
 557          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 558             this->deactivate(*surface_id);
 559             state = nl;
 560             this->layout_commit();
 561          });
 562       }
 563    } else if (state.sub == *surface_id) {
 564       this->try_layout(
 565          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 566             std::string main = std::move(*this->lookup_name(state.main));
 567
 568             this->deactivate(*surface_id);
 569             this->surface_set_layout(state.main);
 570             state = nl;
 571
 572             this->layout_commit();
 573             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 574             compositor::rect area_rect = this->area_info[state.main];
 575             this->emit_syncdraw(main.c_str(), str_area.c_str(),
 576                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 577             this->enqueue_flushdraw(state.main);
 578          });
 579    } else {
 580       return "Surface is not active";
 581    }
 582
 583    return nullptr;
 584 }
 585
 586 void App::enqueue_flushdraw(int surface_id) {
 587    this->check_flushdraw(surface_id);
 588    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 589    this->pending_end_draw.push_back(surface_id);
 590 }
 591
 592 void App::check_flushdraw(int surface_id) {
 593    auto i = std::find(std::begin(this->pending_end_draw),
 594                       std::end(this->pending_end_draw), surface_id);
 595    if (i != std::end(this->pending_end_draw)) {
 596       auto n = this->lookup_name(surface_id);
 597       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 598                n ? n->c_str() : "unknown-name", surface_id);
 599       std::swap(this->pending_end_draw[std::distance(
 600                    std::begin(this->pending_end_draw), i)],
 601                 this->pending_end_draw.back());
 602       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 603    }
 604 }
 605
 606 char const *App::api_enddraw(char const *drawing_name) {
 607    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 608       auto n = this->lookup_name(this->pending_end_draw[i]);
 609       if (n && *n == drawing_name) {
 610          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 611          this->pending_end_draw.resize(iend - 1);
 612          this->activate(this->pending_end_draw[i]);
 613          this->layout_commit();
 614          this->emit_flushdraw(drawing_name);
 615          return nullptr;
 616       }
 617    }
 618    return "No EndDraw pending for surface";
 619 }
 620
 621 void App::api_ping() { this->dispatch_pending_events(); }
 622
 623 void App::send_event(char const *evname, char const *label){
 624    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 625
 626    json_object *j = json_object_new_object();
 627    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 628
 629    int ret = afb_event_push(this->map_afb_event[evname], j);
 630    if (ret != 0) {
 631       HMI_DEBUG("wm", "afb_event_push failed: %m");
 632    }
 633 }
 634
 635 void App::send_event(char const *evname, char const *label, char const *area,
 636                              int x, int y, int w, int h) {
 637    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 638              __func__, evname, label, area, x, y, w, h);
 639
 640    json_object *j_rect = json_object_new_object();
 641    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 642    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 643    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 644    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 645
 646    json_object *j = json_object_new_object();
 647    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 648    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 649    json_object_object_add(j, kKeyDrawingRect, j_rect);
 650
 651    int ret = afb_event_push(this->map_afb_event[evname], j);
 652    if (ret != 0) {
 653       HMI_DEBUG("wm", "afb_event_push failed: %m");
 654    }
 655 }
 656
 657 /**
 658  * proxied events
 659  */
 660 void App::surface_created(uint32_t surface_id) {
 661    auto layer_id = this->layers.get_layer_id(surface_id);
 662    if (!layer_id) {
 663       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 664                surface_id);
 665       return;
 666    }
 667
 668    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 669
 670    this->controller->layers[*layer_id]->add_surface(
 671       this->controller->surfaces[surface_id].get());
 672    this->layout_commit();
 673    // activate the main_surface right away
 674    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 675       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 676
 677       this->api_activate_surface(
 678          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 679    }*/
 680 }
 681
 682 void App::surface_removed(uint32_t surface_id) {
 683    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 684
 685    // We cannot normally deactivate the main_surface, so be explicit
 686    // about it:
 687    if (int(surface_id) == this->layers.main_surface) {
 688       this->deactivate_main_surface();
 689    } else {
 690       auto drawing_name = this->lookup_name(surface_id);
 691       if (drawing_name) {
 692          this->api_deactivate_surface(drawing_name->c_str());
 693       }
 694    }
 695
 696    this->id_alloc.remove_id(surface_id);
 697    this->layers.remove_surface(surface_id);
 698 }
 699
 700 void App::emit_activated(char const *label) {
 701    this->send_event(kListEventName[Event_Active], label);
 702 }
 703
 704 void App::emit_deactivated(char const *label) {
 705    this->send_event(kListEventName[Event_Inactive], label);
 706 }
 707
 708 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 709    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 710 }
 711
 712 void App::emit_flushdraw(char const *label) {
 713    this->send_event(kListEventName[Event_FlushDraw], label);
 714 }
 715
 716 void App::emit_visible(char const *label, bool is_visible) {
 717    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 718 }
 719
 720 void App::emit_invisible(char const *label) {
 721    return emit_visible(label, false);
 722 }
 723
 724 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 725
 726 result<int> App::api_request_surface(char const *drawing_name) {
 727    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 728    if (!lid) {
 729       /**
 730        * register drawing_name as fallback and make it displayed.
 731        */
 732       lid = this->layers.get_layer_id(std::string("Fallback"));
 733       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 734       if(!lid){
 735           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 736       }
 737    }
 738
 739    auto rname = this->lookup_id(drawing_name);
 740    if (!rname) {
 741       // name does not exist yet, allocate surface id...
 742       auto id = int(this->id_alloc.generate_id(drawing_name));
 743       this->layers.add_surface(id, *lid);
 744
 745       // set the main_surface[_name] here and now
 746       if (!this->layers.main_surface_name.empty() &&
 747           this->layers.main_surface_name == drawing_name) {
 748          this->layers.main_surface = id;
 749          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 750       }
 751
 752       return Ok<int>(id);
 753    }
 754
 755    // Check currently registered drawing names if it is already there.
 756    return Err<int>("Surface already present");
 757 }
 758
 759 char const *App::api_request_surface(char const *drawing_name,
 760                                      char const *ivi_id) {
 761    ST();
 762
 763    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 764    unsigned sid = std::stol(ivi_id);
 765
 766    if (!lid) {
 767       /**
 768        * register drawing_name as fallback and make it displayed.
 769        */
 770       lid = this->layers.get_layer_id(std::string("Fallback"));
 771       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 772       if(!lid){
 773           return "Drawing name does not match any role, Fallback is disabled";
 774       }
 775    }
 776
 777    auto rname = this->lookup_id(drawing_name);
 778
 779    if (rname) {
 780        return "Surface already present";
 781    }
 782
 783    // register pair drawing_name and ivi_id
 784    this->id_alloc.register_name_id(drawing_name, sid);
 785    this->layers.add_surface(sid, *lid);
 786
 787    // this surface is already created
 788    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 789
 790    this->controller->layers[*lid]->add_surface(
 791        this->controller->surfaces[sid].get());
 792    this->layout_commit();
 793
 794    return nullptr;
 795 }
 796
 797 result<json_object *> App::api_get_display_info() {
 798    // Check controller
 799    if (!this->controller) {
 800       return Err<json_object *>("ivi_controller global not available");
 801    }
 802
 803    // Set display info
 804    compositor::size o_size = this->controller->output_size;
 805    compositor::size p_size = this->controller->physical_size;
 806
 807    json_object *object = json_object_new_object();
 808    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 809    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 810    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 811    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 812
 813    return Ok<json_object *>(object);
 814 }
 815
 816 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 817    HMI_DEBUG("wm", "called");
 818
 819    // Check drawing name, surface/layer id
 820    auto const &surface_id = this->lookup_id(drawing_name);
 821    if (!surface_id) {
 822       return Err<json_object *>("Surface does not exist");
 823    }
 824
 825    if (!this->controller->surface_exists(*surface_id)) {
 826       return Err<json_object *>("Surface does not exist in controller!");
 827    }
 828
 829    auto layer_id = this->layers.get_layer_id(*surface_id);
 830    if (!layer_id) {
 831       return Err<json_object *>("Surface is not on any layer!");
 832    }
 833
 834    auto o_state = *this->layers.get_layout_state(*surface_id);
 835    if (o_state == nullptr) {
 836       return Err<json_object *>("Could not find layer for surface");
 837    }
 838
 839    struct LayoutState &state = *o_state;
 840    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 841       return Err<json_object *>("Surface is inactive");
 842    }
 843
 844    // Set area rectangle
 845    compositor::rect area_info = this->area_info[*surface_id];
 846    json_object *object = json_object_new_object();
 847    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 848    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 849    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 850    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 851
 852    return Ok<json_object *>(object);
 853 }
 854
 855 void App::activate(int id) {
 856    auto ip = this->controller->sprops.find(id);
 857    if (ip != this->controller->sprops.end()) {
 858       this->controller->surfaces[id]->set_visibility(1);
 859       char const *label =
 860          this->lookup_name(id).value_or("unknown-name").c_str();
 861
 862       // FOR CES DEMO >>>
 863       if ((0 == strcmp(label, "Radio"))
 864           || (0 == strcmp(label, "MediaPlayer"))
 865           || (0 == strcmp(label, "Music"))
 866           || (0 == strcmp(label, "Navigation"))) {
 867         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 868             if (id == *i) {
 869                // Remove id
 870                this->surface_bg.erase(i);
 871
 872                // Remove from BG layer (999)
 873                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 874                this->controller->layers[999]->remove_surface(
 875                   this->controller->surfaces[id].get());
 876
 877                // Add to FG layer (1001)
 878                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 879                this->controller->layers[1001]->add_surface(
 880                   this->controller->surfaces[id].get());
 881
 882                for (int j : this->surface_bg) {
 883                  HMI_DEBUG("wm", "Stored id:%d", j);
 884                }
 885                break;
 886             }
 887          }
 888       }
 889       // <<< FOR CES DEMO
 890
 891       this->emit_visible(label);
 892       this->emit_activated(label);
 893    }
 894 }
 895
 896 void App::deactivate(int id) {
 897    auto ip = this->controller->sprops.find(id);
 898    if (ip != this->controller->sprops.end() && ip->second.visibility != 0) {
 899       char const *label =
 900          this->lookup_name(id).value_or("unknown-name").c_str();
 901
 902       // FOR CES DEMO >>>
 903       if ((0 == strcmp(label, "Radio"))
 904           || (0 == strcmp(label, "MediaPlayer"))
 905           || (0 == strcmp(label, "Music"))
 906           || (0 == strcmp(label, "Navigation"))) {
 907
 908          // Store id
 909          this->surface_bg.push_back(id);
 910
 911          // Remove from FG layer (1001)
 912          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 913          this->controller->layers[1001]->remove_surface(
 914             this->controller->surfaces[id].get());
 915
 916          // Add to BG layer (999)
 917          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 918          this->controller->layers[999]->add_surface(
 919             this->controller->surfaces[id].get());
 920
 921          for (int j : surface_bg) {
 922             HMI_DEBUG("wm", "Stored id:%d", j);
 923          }
 924       }
 925       else {
 926          this->controller->surfaces[id]->set_visibility(0);
 927       }
 928       // <<< FOR CES DEMO
 929
 930       this->emit_deactivated(label);
 931       this->emit_invisible(label);
 932    }
 933 }
 934
 935 void App::deactivate_main_surface() {
 936    this->layers.main_surface = -1;
 937    this->api_deactivate_surface(this->layers.main_surface_name.c_str());
 938 }
 939
 940 bool App::can_split(struct LayoutState const &state, int new_id) {
 941    if (state.main != -1 && state.main != new_id) {
 942       auto new_id_layer = this->layers.get_layer_id(new_id).value();
 943       auto current_id_layer = this->layers.get_layer_id(state.main).value();
 944
 945       // surfaces are on separate layers, don't bother.
 946       if (new_id_layer != current_id_layer) {
 947          return false;
 948       }
 949
 950       std::string const &new_id_str = this->lookup_name(new_id).value();
 951       std::string const &cur_id_str = this->lookup_name(state.main).value();
 952
 953       auto const &layer = this->layers.get_layer(new_id_layer);
 954
 955       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
 956
 957       if (layer->layouts.empty()) {
 958          return false;
 959       }
 960
 961       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
 962          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
 963          auto rem = std::regex(i->main_match);
 964          if (std::regex_match(cur_id_str, rem)) {
 965             // build the second one only if the first already matched
 966             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
 967             auto res = std::regex(i->sub_match);
 968             if (std::regex_match(new_id_str, res)) {
 969                HMI_DEBUG("wm", "layout matched!");
 970                return true;
 971             }
 972          }
 973       }
 974    }
 975
 976    return false;
 977 }
 978
 979 void App::try_layout(struct LayoutState & /*state*/,
 980                      struct LayoutState const &new_layout,
 981                      std::function<void(LayoutState const &nl)> apply) {
 982    if (this->policy.layout_is_valid(new_layout)) {
 983       apply(new_layout);
 984    }
 985 }
 986
 987 /**
 988  * controller_hooks
 989  */
 990 void controller_hooks::surface_created(uint32_t surface_id) {
 991    this->app->surface_created(surface_id);
 992 }
 993
 994 void controller_hooks::surface_removed(uint32_t surface_id) {
 995    this->app->surface_removed(surface_id);
 996 }
 997
 998 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
 999                                           uint32_t /*v*/) {}
1000
1001 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1002                                                      uint32_t /*x*/,
1003                                                      uint32_t /*y*/,
1004                                                      uint32_t /*w*/,
1005                                                      uint32_t /*h*/) {}
1006
1007 }  // namespace wm