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 #include "windowmanager-client.hpp"
  39 #include "allocate_queue.hpp"
  40
  41 namespace wm {
  42
  43 /* DrawingArea name used by "{layout}.{area}" */
  44 const char kNameLayoutNormal[] = "normal";
  45 const char kNameLayoutSplit[]  = "split";
  46 const char kNameAreaFull[]     = "full";
  47 const char kNameAreaMain[]     = "main";
  48 const char kNameAreaSub[]      = "sub";
  49
  50 /* Key for json obejct */
  51 const char kKeyDrawingName[] = "drawing_name";
  52 const char kKeyDrawingArea[] = "drawing_area";
  53 const char kKeyDrawingRect[] = "drawing_rect";
  54 const char kKeyX[]           = "x";
  55 const char kKeyY[]           = "y";
  56 const char kKeyWidth[]       = "width";
  57 const char kKeyHeight[]      = "height";
  58 const char kKeyWidthPixel[]  = "width_pixel";
  59 const char kKeyHeightPixel[] = "height_pixel";
  60 const char kKeyWidthMm[]     = "width_mm";
  61 const char kKeyHeightMm[]    = "height_mm";
  62
  63 static AllocateRequestList allocate_list;
  64
  65 namespace {
  66
  67 using nlohmann::json;
  68
  69 result<json> file_to_json(char const *filename) {
  70    json j;
  71    std::ifstream i(filename);
  72    if (i.fail()) {
  73       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  74       j = default_layers_json;
  75    }
  76    else {
  77       i >> j;
  78    }
  79
  80    return Ok(j);
  81 }
  82
  83 struct result<layer_map> load_layer_map(char const *filename) {
  84    HMI_DEBUG("wm", "loading IDs from %s", filename);
  85
  86    auto j = file_to_json(filename);
  87    if (j.is_err()) {
  88       return Err<layer_map>(j.unwrap_err());
  89    }
  90    json jids = j.unwrap();
  91
  92    return to_layer_map(jids);
  93 }
  94
  95 }  // namespace
  96
  97
  98 /**
  99  * App Impl
 100  */
 101 App::App(wl::display *d)
 102    : chooks{this},
 103      display{d},
 104      controller{},
 105      outputs(),
 106      config(),
 107      layers(),
 108      id_alloc{},
 109      pending_events(false),
 110      policy{} {
 111    try {
 112       {
 113          auto l = load_layer_map(
 114             this->config.get_string("layers.json").value().c_str());
 115          if (l.is_ok()) {
 116             this->layers = l.unwrap();
 117          } else {
 118             HMI_ERROR("wm", "%s", l.err().value());
 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_wm", [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          // Create screen
 161          this->controller->create_screen(this->outputs.back()->proxy.get());
 162
 163          // Set display to controller
 164          this->controller->display = this->display;
 165       });
 166
 167    // First level objects
 168    this->display->roundtrip();
 169    // Second level objects
 170    this->display->roundtrip();
 171    // Third level objects
 172    this->display->roundtrip();
 173
 174    return init_layers();
 175 }
 176
 177 int App::dispatch_pending_events() {
 178    if (this->pop_pending_events()) {
 179       this->display->dispatch_pending();
 180       return 0;
 181    }
 182    return -1;
 183 }
 184
 185 bool App::pop_pending_events() {
 186    bool x{true};
 187    return this->pending_events.compare_exchange_strong(
 188       x, false, std::memory_order_consume);
 189 }
 190
 191 void App::set_pending_events() {
 192    this->pending_events.store(true, std::memory_order_release);
 193 }
 194
 195 optional<int> App::lookup_id(char const *name) {
 196    return this->id_alloc.lookup(std::string(name));
 197 }
 198 optional<std::string> App::lookup_name(int id) {
 199    return this->id_alloc.lookup(id);
 200 }
 201
 202 /**
 203  * init_layers()
 204  */
 205 int App::init_layers() {
 206    if (!this->controller) {
 207       HMI_ERROR("wm", "ivi_controller global not available");
 208       return -1;
 209    }
 210
 211    if (this->outputs.empty()) {
 212       HMI_ERROR("wm", "no output was set up!");
 213       return -1;
 214    }
 215
 216    auto &c = this->controller;
 217
 218    auto &o = this->outputs.front();
 219    auto &s = c->screens.begin()->second;
 220    auto &layers = c->layers;
 221
 222    // Write output dimensions to ivi controller...
 223    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 224    c->physical_size = compositor::size{uint32_t(o->physical_width),
 225                                        uint32_t(o->physical_height)};
 226
 227    // Clear scene
 228    layers.clear();
 229
 230    // Clear screen
 231    s->clear();
 232
 233    // Quick and dirty setup of layers
 234    for (auto const &i : this->layers.mapping) {
 235       c->layer_create(i.second.layer_id, o->width, o->height);
 236       auto &l = layers[i.second.layer_id];
 237       l->set_destination_rectangle(0, 0, o->width, o->height);
 238       l->set_visibility(1);
 239       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 240                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 241    }
 242
 243    // Add layers to screen
 244    s->set_render_order(this->layers.layers);
 245
 246    this->layout_commit();
 247
 248    return 0;
 249 }
 250
 251 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 252    if (!this->controller->surface_exists(surface_id)) {
 253       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 254       return;
 255    }
 256
 257    auto o_layer_id = this->layers.get_layer_id(surface_id);
 258
 259    if (!o_layer_id) {
 260       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 261       return;
 262    }
 263
 264    uint32_t layer_id = *o_layer_id;
 265
 266    auto const &layer = this->layers.get_layer(layer_id);
 267    auto rect = layer.value().rect;
 268    auto &s = this->controller->surfaces[surface_id];
 269
 270    int x = rect.x;
 271    int y = rect.y;
 272    int w = rect.w;
 273    int h = rect.h;
 274
 275    // less-than-0 values refer to MAX + 1 - $VALUE
 276    // e.g. MAX is either screen width or height
 277    if (w < 0) {
 278       w = this->controller->output_size.w + 1 + w;
 279    }
 280    if (h < 0) {
 281       h = this->controller->output_size.h + 1 + h;
 282    }
 283
 284    if (sub_surface_id) {
 285       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 286          HMI_ERROR("wm",
 287             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 288             surface_id, *sub_surface_id);
 289          return;
 290       }
 291
 292       int x_off = 0;
 293       int y_off = 0;
 294
 295       // split along major axis
 296       if (w > h) {
 297          w /= 2;
 298          x_off = w;
 299       } else {
 300          h /= 2;
 301          y_off = h;
 302       }
 303
 304       auto &ss = this->controller->surfaces[*sub_surface_id];
 305
 306       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 307                *sub_surface_id, layer_id);
 308
 309       // set destination to the display rectangle
 310       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 311
 312       this->area_info[*sub_surface_id].x = x;
 313       this->area_info[*sub_surface_id].y = y;
 314       this->area_info[*sub_surface_id].w = w;
 315       this->area_info[*sub_surface_id].h = h;
 316    }
 317
 318    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 319             layer_id);
 320
 321    // set destination to the display rectangle
 322    s->set_destination_rectangle(x, y, w, h);
 323
 324    // update area information
 325    this->area_info[surface_id].x = x;
 326    this->area_info[surface_id].y = y;
 327    this->area_info[surface_id].w = w;
 328    this->area_info[surface_id].h = h;
 329
 330    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 331             surface_id, layer_id, x, y, w, h);
 332 }
 333
 334 void App::layout_commit() {
 335    this->controller->commit_changes();
 336    this->display->flush();
 337 }
 338
 339 void App::api_activate_surface(char const *drawing_name, char const *drawing_area, const reply_func &reply) {
 340    ST();
 341
 342    auto const &surface_id = this->lookup_id(drawing_name);
 343
 344    if (!surface_id) {
 345        reply("Surface does not exist");
 346        return;
 347    }
 348
 349    if (!this->controller->surface_exists(*surface_id)) {
 350       reply("Surface does not exist in controller!");
 351       return;
 352    }
 353
 354    auto layer_id = this->layers.get_layer_id(*surface_id);
 355
 356    if (!layer_id) {
 357       reply("Surface is not on any layer!");
 358       return;
 359    }
 360
 361    auto o_state = *this->layers.get_layout_state(*surface_id);
 362
 363    if (o_state == nullptr) {
 364       reply("Could not find layer for surface");
 365       return;
 366    }
 367
 368    HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 369    reply(nullptr);
 370
 371    struct LayoutState &state = *o_state;
 372
 373    // disable layers that are above our current layer
 374    for (auto const &l : this->layers.mapping) {
 375       if (l.second.layer_id <= *layer_id) {
 376          continue;
 377       }
 378
 379       bool flush = false;
 380       if (l.second.state.main != -1) {
 381          this->deactivate(l.second.state.main);
 382          l.second.state.main = -1;
 383          flush = true;
 384       }
 385
 386       if (l.second.state.sub != -1) {
 387          this->deactivate(l.second.state.sub);
 388          l.second.state.sub = -1;
 389          flush = true;
 390       }
 391
 392       if (flush) {
 393          this->layout_commit();
 394       }
 395    }
 396
 397    auto layer = this->layers.get_layer(*layer_id);
 398
 399    if (state.main == -1) {
 400       this->try_layout(
 401          state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 402             HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 403             this->surface_set_layout(*surface_id);
 404             state = nl;
 405
 406             // Commit for configuraton
 407             this->layout_commit();
 408
 409             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 410             compositor::rect area_rect = this->area_info[*surface_id];
 411             this->emit_syncdraw(drawing_name, str_area.c_str(),
 412                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 413             this->enqueue_flushdraw(state.main);
 414          });
 415    } else {
 416       if (0 == strcmp(drawing_name, "HomeScreen")) {
 417          this->try_layout(
 418             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 419                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 420                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 421                compositor::rect area_rect = this->area_info[*surface_id];
 422                this->emit_syncdraw(drawing_name, str_area.c_str(),
 423                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 424                this->enqueue_flushdraw(state.main);
 425             });
 426       } else {
 427          bool can_split = this->can_split(state, *surface_id);
 428
 429          if (can_split) {
 430             this->try_layout(
 431                state,
 432                LayoutState{state.main, *surface_id},
 433                [&] (LayoutState const &nl) {
 434                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 435                   std::string main =
 436                      std::move(*this->lookup_name(state.main));
 437
 438                   this->surface_set_layout(state.main, surface_id);
 439                   if (state.sub != *surface_id) {
 440                       if (state.sub != -1) {
 441                          this->deactivate(state.sub);
 442                       }
 443                   }
 444                   state = nl;
 445
 446                   // Commit for configuration and visibility(0)
 447                   this->layout_commit();
 448
 449                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 450                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 451                   compositor::rect area_rect_main = this->area_info[state.main];
 452                   compositor::rect area_rect_sub = this->area_info[*surface_id];
 453                   this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 454                                       area_rect_main.x, area_rect_main.y,
 455                                       area_rect_main.w, area_rect_main.h);
 456                   this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 457                                       area_rect_sub.x, area_rect_sub.y,
 458                                       area_rect_sub.w, area_rect_sub.h);
 459                   this->enqueue_flushdraw(state.main);
 460                   this->enqueue_flushdraw(state.sub);
 461                });
 462          } else {
 463             this->try_layout(
 464                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 465                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 466
 467                   this->surface_set_layout(*surface_id);
 468                   if (state.main != *surface_id) {
 469                       this->deactivate(state.main);
 470                   }
 471                   if (state.sub != -1) {
 472                       if (state.sub != *surface_id) {
 473                          this->deactivate(state.sub);
 474                       }
 475                   }
 476                   state = nl;
 477
 478                   // Commit for configuraton and visibility(0)
 479                   this->layout_commit();
 480
 481                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 482                   compositor::rect area_rect = this->area_info[*surface_id];
 483                   this->emit_syncdraw(drawing_name, str_area.c_str(),
 484                                       area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 485                   this->enqueue_flushdraw(state.main);
 486                });
 487          }
 488       }
 489    }
 490 }
 491
 492 void App::api_deactivate_surface(char const *drawing_name, const reply_func &reply) {
 493    ST();
 494    auto const &surface_id = this->lookup_id(drawing_name);
 495
 496    if (!surface_id) {
 497       reply ("Surface does not exist");
 498       return;
 499    }
 500
 501    if (*surface_id == this->layers.main_surface) {
 502       reply("Cannot deactivate main_surface");
 503       return;
 504    }
 505
 506    auto o_state = *this->layers.get_layout_state(*surface_id);
 507
 508    if (o_state == nullptr) {
 509       reply("Could not find layer for surface");
 510       return;
 511    }
 512
 513    struct LayoutState &state = *o_state;
 514
 515    if (state.main == -1) {
 516       reply("No surface active");
 517       return;
 518    }
 519
 520    // Check against main_surface, main_surface_name is the configuration item.
 521    if (*surface_id == this->layers.main_surface) {
 522       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 523       reply(nullptr);
 524       return;
 525    }
 526    if((state.main == *surface_id) && (state.sub == *surface_id)){
 527        reply("Surface is not active");
 528        return;
 529    }
 530    reply(nullptr);
 531
 532    if (state.main == *surface_id) {
 533       if (state.sub != -1) {
 534          this->try_layout(
 535             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 536                std::string sub = std::move(*this->lookup_name(state.sub));
 537
 538                this->deactivate(*surface_id);
 539                this->surface_set_layout(state.sub);
 540                state = nl;
 541
 542                this->layout_commit();
 543                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 544                compositor::rect area_rect = this->area_info[state.sub];
 545                this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 546                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 547                this->enqueue_flushdraw(state.sub);
 548             });
 549       } else {
 550          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 551             this->deactivate(*surface_id);
 552             state = nl;
 553             this->layout_commit();
 554          });
 555       }
 556    } else if (state.sub == *surface_id) {
 557       this->try_layout(
 558          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 559             std::string main = std::move(*this->lookup_name(state.main));
 560
 561             this->deactivate(*surface_id);
 562             this->surface_set_layout(state.main);
 563             state = nl;
 564
 565             this->layout_commit();
 566             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 567             compositor::rect area_rect = this->area_info[state.main];
 568             this->emit_syncdraw(main.c_str(), str_area.c_str(),
 569                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 570             this->enqueue_flushdraw(state.main);
 571          });
 572    }
 573 }
 574
 575 void App::enqueue_flushdraw(int surface_id) {
 576    this->check_flushdraw(surface_id);
 577    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 578    this->pending_end_draw.push_back(surface_id);
 579 }
 580
 581 void App::check_flushdraw(int surface_id) {
 582    auto i = std::find(std::begin(this->pending_end_draw),
 583                       std::end(this->pending_end_draw), surface_id);
 584    if (i != std::end(this->pending_end_draw)) {
 585       auto n = this->lookup_name(surface_id);
 586       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 587                n ? n->c_str() : "unknown-name", surface_id);
 588       std::swap(this->pending_end_draw[std::distance(
 589                    std::begin(this->pending_end_draw), i)],
 590                 this->pending_end_draw.back());
 591       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 592    }
 593 }
 594
 595 void App::api_enddraw(char const *drawing_name) {
 596    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 597       auto n = this->lookup_name(this->pending_end_draw[i]);
 598       if (n && *n == drawing_name) {
 599          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 600          this->pending_end_draw.resize(iend - 1);
 601          this->activate(this->pending_end_draw[i]);
 602          this->emit_flushdraw(drawing_name);
 603       }
 604    }
 605 }
 606
 607 void App::api_ping() { this->dispatch_pending_events(); }
 608
 609 void App::send_event(char const *evname, char const *label){
 610    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 611
 612    json_object *j = json_object_new_object();
 613    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 614
 615    int ret = afb_event_push(this->map_afb_event[evname], j);
 616    if (ret != 0) {
 617       HMI_DEBUG("wm", "afb_event_push failed: %m");
 618    }
 619 }
 620
 621 void App::send_event(char const *evname, char const *label, char const *area,
 622                              int x, int y, int w, int h) {
 623    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 624              __func__, evname, label, area, x, y, w, h);
 625
 626    json_object *j_rect = json_object_new_object();
 627    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 628    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 629    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 630    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 631
 632    json_object *j = json_object_new_object();
 633    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 634    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 635    json_object_object_add(j, kKeyDrawingRect, j_rect);
 636
 637    int ret = afb_event_push(this->map_afb_event[evname], j);
 638    if (ret != 0) {
 639       HMI_DEBUG("wm", "afb_event_push failed: %m");
 640    }
 641 }
 642
 643 /**
 644  * proxied events
 645  */
 646 void App::surface_created(uint32_t surface_id) {
 647    auto layer_id = this->layers.get_layer_id(surface_id);
 648    if (!layer_id) {
 649       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 650                surface_id);
 651       return;
 652    }
 653
 654    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 655
 656    this->controller->layers[*layer_id]->add_surface(surface_id);
 657    this->layout_commit();
 658    // activate the main_surface right away
 659    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 660       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 661
 662       this->api_activate_surface(
 663          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 664    }*/
 665 }
 666
 667 void App::surface_removed(uint32_t surface_id) {
 668    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 669
 670    // We cannot normally deactivate the main_surface, so be explicit
 671    // about it:
 672    if (int(surface_id) == this->layers.main_surface) {
 673       this->deactivate_main_surface();
 674    } else {
 675       auto drawing_name = this->lookup_name(surface_id);
 676       if (drawing_name) {
 677          this->api_deactivate_surface(drawing_name->c_str(), [](const char*){});
 678       }
 679    }
 680
 681    this->id_alloc.remove_id(surface_id);
 682    this->layers.remove_surface(surface_id);
 683 }
 684
 685 void App::emit_activated(char const *label) {
 686    this->send_event(kListEventName[Event_Active], label);
 687 }
 688
 689 void App::emit_deactivated(char const *label) {
 690    this->send_event(kListEventName[Event_Inactive], label);
 691 }
 692
 693 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 694    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 695 }
 696
 697 void App::emit_flushdraw(char const *label) {
 698    this->send_event(kListEventName[Event_FlushDraw], label);
 699 }
 700
 701 void App::emit_visible(char const *label, bool is_visible) {
 702    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 703 }
 704
 705 void App::emit_invisible(char const *label) {
 706    return emit_visible(label, false);
 707 }
 708
 709 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 710
 711 result<int> App::api_request_surface(char const *drawing_name, char const * appid, int flag) {
 712    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 713    if (!lid) {
 714       /**
 715        * register drawing_name as fallback and make it displayed.
 716        */
 717       lid = this->layers.get_layer_id(std::string("Fallback"));
 718       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 719       if(!lid){
 720           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 721       }
 722    }
 723
 724    auto rname = this->lookup_id(drawing_name);
 725    if (!rname) {
 726       // name does not exist yet, allocate surface id...
 727       auto id = int(this->id_alloc.generate_id(drawing_name));
 728       this->layers.add_surface(id, *lid);
 729
 730       // set the main_surface[_name] here and now
 731       if (!this->layers.main_surface_name.empty() &&
 732           this->layers.main_surface_name == drawing_name) {
 733          this->layers.main_surface = id;
 734          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 735       }
 736
 737       // add client into the db
 738       WMClient* client = new WMClient(appid, *lid, id, drawing_name); // role is drawing_name for now
 739       allocate_list.addClient(client);
 740
 741       return Ok<int>(id);
 742    }
 743
 744    // Check currently registered drawing names if it is already there.
 745    return Err<int>("Surface already present");
 746 }
 747
 748 char const *App::api_request_surface(char const *drawing_name,
 749                                      char const *ivi_id) {
 750    ST();
 751
 752    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 753    unsigned sid = std::stol(ivi_id);
 754
 755    if (!lid) {
 756       /**
 757        * register drawing_name as fallback and make it displayed.
 758        */
 759       lid = this->layers.get_layer_id(std::string("Fallback"));
 760       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 761       if(!lid){
 762           return "Drawing name does not match any role, Fallback is disabled";
 763       }
 764    }
 765
 766    auto rname = this->lookup_id(drawing_name);
 767
 768    if (rname) {
 769        return "Surface already present";
 770    }
 771
 772    // register pair drawing_name and ivi_id
 773    this->id_alloc.register_name_id(drawing_name, sid);
 774    this->layers.add_surface(sid, *lid);
 775
 776    // this surface is already created
 777    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 778
 779    this->controller->layers[*lid]->add_surface(sid);
 780    this->layout_commit();
 781
 782    return nullptr;
 783 }
 784
 785 result<json_object *> App::api_get_display_info() {
 786    // Check controller
 787    if (!this->controller) {
 788       return Err<json_object *>("ivi_controller global not available");
 789    }
 790
 791    // Set display info
 792    compositor::size o_size = this->controller->output_size;
 793    compositor::size p_size = this->controller->physical_size;
 794
 795    json_object *object = json_object_new_object();
 796    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 797    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 798    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 799    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 800
 801    return Ok<json_object *>(object);
 802 }
 803
 804 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 805    HMI_DEBUG("wm", "called");
 806
 807    // Check drawing name, surface/layer id
 808    auto const &surface_id = this->lookup_id(drawing_name);
 809    if (!surface_id) {
 810       return Err<json_object *>("Surface does not exist");
 811    }
 812
 813    if (!this->controller->surface_exists(*surface_id)) {
 814       return Err<json_object *>("Surface does not exist in controller!");
 815    }
 816
 817    auto layer_id = this->layers.get_layer_id(*surface_id);
 818    if (!layer_id) {
 819       return Err<json_object *>("Surface is not on any layer!");
 820    }
 821
 822    auto o_state = *this->layers.get_layout_state(*surface_id);
 823    if (o_state == nullptr) {
 824       return Err<json_object *>("Could not find layer for surface");
 825    }
 826
 827    struct LayoutState &state = *o_state;
 828    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 829       return Err<json_object *>("Surface is inactive");
 830    }
 831
 832    // Set area rectangle
 833    compositor::rect area_info = this->area_info[*surface_id];
 834    json_object *object = json_object_new_object();
 835    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 836    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 837    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 838    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 839
 840    return Ok<json_object *>(object);
 841 }
 842
 843 void App::activate(int id) {
 844    auto ip = this->controller->sprops.find(id);
 845    if (ip != this->controller->sprops.end()) {
 846       this->controller->surfaces[id]->set_visibility(1);
 847       char const *label =
 848          this->lookup_name(id).value_or("unknown-name").c_str();
 849
 850       // FOR CES DEMO >>>
 851       if ((0 == strcmp(label, "Radio"))
 852           || (0 == strcmp(label, "MediaPlayer"))
 853           || (0 == strcmp(label, "Music"))
 854           || (0 == strcmp(label, "Navigation"))) {
 855         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 856             if (id == *i) {
 857                // Remove id
 858                this->surface_bg.erase(i);
 859
 860                // Remove from BG layer (999)
 861                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 862                this->controller->layers[999]->remove_surface(id);
 863
 864                // Add to FG layer (1001)
 865                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 866                this->controller->layers[1001]->add_surface(id);
 867
 868                for (int j : this->surface_bg) {
 869                  HMI_DEBUG("wm", "Stored id:%d", j);
 870                }
 871                break;
 872             }
 873          }
 874       }
 875       // <<< FOR CES DEMO
 876       this->layout_commit();
 877
 878       this->emit_visible(label);
 879       this->emit_activated(label);
 880    }
 881 }
 882
 883 void App::deactivate(int id) {
 884    auto ip = this->controller->sprops.find(id);
 885    if (ip != this->controller->sprops.end()) {
 886       char const *label =
 887          this->lookup_name(id).value_or("unknown-name").c_str();
 888
 889       // FOR CES DEMO >>>
 890       if ((0 == strcmp(label, "Radio"))
 891           || (0 == strcmp(label, "MediaPlayer"))
 892           || (0 == strcmp(label, "Music"))
 893           || (0 == strcmp(label, "Navigation"))) {
 894
 895          // Store id
 896          this->surface_bg.push_back(id);
 897
 898          // Remove from FG layer (1001)
 899          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 900          this->controller->layers[1001]->remove_surface(id);
 901
 902          // Add to BG layer (999)
 903          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
 904          this->controller->layers[999]->add_surface(id);
 905
 906          for (int j : surface_bg) {
 907             HMI_DEBUG("wm", "Stored id:%d", j);
 908          }
 909       }
 910       else {
 911          this->controller->surfaces[id]->set_visibility(0);
 912       }
 913       // <<< FOR CES DEMO
 914
 915       this->emit_deactivated(label);
 916       this->emit_invisible(label);
 917    }
 918 }
 919
 920 void App::deactivate_main_surface() {
 921    this->layers.main_surface = -1;
 922    this->api_deactivate_surface(this->layers.main_surface_name.c_str(), [](const char*){});
 923 }
 924
 925 bool App::can_split(struct LayoutState const &state, int new_id) {
 926    if (state.main != -1 && state.main != new_id) {
 927       auto new_id_layer = this->layers.get_layer_id(new_id).value();
 928       auto current_id_layer = this->layers.get_layer_id(state.main).value();
 929
 930       // surfaces are on separate layers, don't bother.
 931       if (new_id_layer != current_id_layer) {
 932          return false;
 933       }
 934
 935       std::string const &new_id_str = this->lookup_name(new_id).value();
 936       std::string const &cur_id_str = this->lookup_name(state.main).value();
 937
 938       auto const &layer = this->layers.get_layer(new_id_layer);
 939
 940       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
 941
 942       if (layer->layouts.empty()) {
 943          return false;
 944       }
 945
 946       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
 947          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
 948          auto rem = std::regex(i->main_match);
 949          if (std::regex_match(cur_id_str, rem)) {
 950             // build the second one only if the first already matched
 951             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
 952             auto res = std::regex(i->sub_match);
 953             if (std::regex_match(new_id_str, res)) {
 954                HMI_DEBUG("wm", "layout matched!");
 955                return true;
 956             }
 957          }
 958       }
 959    }
 960
 961    return false;
 962 }
 963
 964 void App::try_layout(struct LayoutState & /*state*/,
 965                      struct LayoutState const &new_layout,
 966                      std::function<void(LayoutState const &nl)> apply) {
 967    if (this->policy.layout_is_valid(new_layout)) {
 968       apply(new_layout);
 969    }
 970 }
 971
 972 /**
 973  * controller_hooks
 974  */
 975 void controller_hooks::surface_created(uint32_t surface_id) {
 976    this->app->surface_created(surface_id);
 977 }
 978
 979 void controller_hooks::surface_removed(uint32_t surface_id) {
 980    this->app->surface_removed(surface_id);
 981 }
 982
 983 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
 984                                           uint32_t /*v*/) {}
 985
 986 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
 987                                                      uint32_t /*x*/,
 988                                                      uint32_t /*y*/,
 989                                                      uint32_t /*w*/,
 990                                                      uint32_t /*h*/) {}
 991
 992 }  // namespace wm